[{"publisher":"Alliance of Diamond Open Access Journals","ddc":["512"],"status":"public","intvolume":"        15","date_updated":"2022-08-26T09:13:02Z","date_created":"2018-12-11T11:45:02Z","day":"07","title":"Counting rational points on quadric surfaces","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"article_processing_charge":"No","doi":"10.19086/da.4375","external_id":{"arxiv":["1801.00979"]},"year":"2018","page":"1 - 29","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","month":"09","main_file_link":[{"url":"https://arxiv.org/abs/1801.00979","open_access":"1"}],"_id":"178","type":"journal_article","language":[{"iso":"eng"}],"extern":"1","volume":15,"publication_identifier":{"eissn":["2397-3129"]},"license":"https://creativecommons.org/licenses/by/4.0/","arxiv":1,"quality_controlled":"1","publication_status":"published","citation":{"chicago":"Browning, Timothy D, and Roger Heath-Brown. “Counting Rational Points on Quadric Surfaces.” <i>Discrete Analysis</i>. Alliance of Diamond Open Access Journals, 2018. <a href=\"https://doi.org/10.19086/da.4375\">https://doi.org/10.19086/da.4375</a>.","short":"T.D. Browning, R. Heath-Brown, Discrete Analysis 15 (2018) 1–29.","ama":"Browning TD, Heath-Brown R. Counting rational points on quadric surfaces. <i>Discrete Analysis</i>. 2018;15:1-29. doi:<a href=\"https://doi.org/10.19086/da.4375\">10.19086/da.4375</a>","apa":"Browning, T. D., &#38; Heath-Brown, R. (2018). Counting rational points on quadric surfaces. <i>Discrete Analysis</i>. Alliance of Diamond Open Access Journals. <a href=\"https://doi.org/10.19086/da.4375\">https://doi.org/10.19086/da.4375</a>","ieee":"T. D. Browning and R. Heath-Brown, “Counting rational points on quadric surfaces,” <i>Discrete Analysis</i>, vol. 15. Alliance of Diamond Open Access Journals, pp. 1–29, 2018.","mla":"Browning, Timothy D., and Roger Heath-Brown. “Counting Rational Points on Quadric Surfaces.” <i>Discrete Analysis</i>, vol. 15, Alliance of Diamond Open Access Journals, 2018, pp. 1–29, doi:<a href=\"https://doi.org/10.19086/da.4375\">10.19086/da.4375</a>.","ista":"Browning TD, Heath-Brown R. 2018. Counting rational points on quadric surfaces. Discrete Analysis. 15, 1–29."},"oa_version":"Preprint","date_published":"2018-09-07T00:00:00Z","oa":1,"publication":"Discrete Analysis","author":[{"last_name":"Browning","orcid":"0000-0002-8314-0177","first_name":"Timothy D","id":"35827D50-F248-11E8-B48F-1D18A9856A87","full_name":"Browning, Timothy D"},{"last_name":"Heath-Brown","full_name":"Heath-Brown, Roger","first_name":"Roger"}],"abstract":[{"text":"We give an upper bound for the number of rational points of height at most B, lying on a surface defined by a quadratic form Q. The bound shows an explicit dependence on Q. It is optimal with respect to B, and is also optimal for typical forms Q.","lang":"eng"}]},{"scopus_import":"1","month":"10","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"15080-15088","year":"2018","doi":"10.1021/jacs.8b10296","external_id":{"pmid":["30372051"]},"article_processing_charge":"No","article_type":"original","title":"Large variations in the single-molecule conductance of cyclic and bicyclic silanes","day":"17","date_updated":"2024-12-11T08:21:09Z","date_created":"2024-09-09T07:53:50Z","intvolume":"       140","status":"public","publisher":"American Chemical Society","abstract":[{"text":"Linear silanes are efficient molecular wires due to strong σ-conjugation in the transoid conformation; however, the structure–function relationship for the conformational dependence of the single-molecule conductance of silanes remains untested. Here we report the syntheses, electrical measurements, and theoretical characterization of four series of functionalized cyclic and bicyclic silanes including a cyclotetrasilane, a cyclopentasilane, a bicyclo[2.2.1]heptasilane, and a bicyclo[2.2.2]octasilane, which are all extended by linear silicon linkers of varying length. We find an unusual variation of the single-molecule conductance among the four series at each linker length. We determine the relative conductance of the (bi)cyclic silicon structures by using the common length dependence of the four series rather than comparing the conductance at a single length. In contrast with the cyclic π-conjugated molecules, the conductance of σ-conjugated (bi)cyclic silanes is dominated by a single path through the molecule and is controlled by the dihedral angles along this path. This strong sensitivity to molecular conformation dictates the single-molecule conductance of σ-conjugated silanes and allows for systematic control of the conductance through molecular design.","lang":"eng"}],"author":[{"last_name":"Li","first_name":"Haixing","full_name":"Li, Haixing"},{"first_name":"Marc H.","full_name":"Garner, Marc H.","last_name":"Garner"},{"full_name":"Shangguan, Zhichun","first_name":"Zhichun","last_name":"Shangguan"},{"full_name":"Chen, Yan","first_name":"Yan","last_name":"Chen"},{"last_name":"Zheng","first_name":"Qianwen","full_name":"Zheng, Qianwen"},{"last_name":"Su","full_name":"Su, Timothy A.","first_name":"Timothy A."},{"first_name":"Madhav","full_name":"Neupane, Madhav","last_name":"Neupane"},{"last_name":"Liu","full_name":"Liu, Taifeng","first_name":"Taifeng"},{"last_name":"Steigerwald","full_name":"Steigerwald, Michael L.","first_name":"Michael L."},{"last_name":"Ng","full_name":"Ng, Fay","first_name":"Fay"},{"last_name":"Nuckolls","full_name":"Nuckolls, Colin","first_name":"Colin"},{"full_name":"Xiao, Shengxiong","first_name":"Shengxiong","last_name":"Xiao"},{"last_name":"Solomon","first_name":"Gemma C.","full_name":"Solomon, Gemma C."},{"last_name":"Venkataraman","orcid":"0000-0002-6957-6089","first_name":"Latha","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","full_name":"Venkataraman, Latha"}],"publication":"Journal of the American Chemical Society","date_published":"2018-10-17T00:00:00Z","oa_version":"None","publication_status":"published","citation":{"ista":"Li H, Garner MH, Shangguan Z, Chen Y, Zheng Q, Su TA, Neupane M, Liu T, Steigerwald ML, Ng F, Nuckolls C, Xiao S, Solomon GC, Venkataraman L. 2018. Large variations in the single-molecule conductance of cyclic and bicyclic silanes. Journal of the American Chemical Society. 140(44), 15080–15088.","mla":"Li, Haixing, et al. “Large Variations in the Single-Molecule Conductance of Cyclic and Bicyclic Silanes.” <i>Journal of the American Chemical Society</i>, vol. 140, no. 44, American Chemical Society, 2018, pp. 15080–88, doi:<a href=\"https://doi.org/10.1021/jacs.8b10296\">10.1021/jacs.8b10296</a>.","ieee":"H. Li <i>et al.</i>, “Large variations in the single-molecule conductance of cyclic and bicyclic silanes,” <i>Journal of the American Chemical Society</i>, vol. 140, no. 44. American Chemical Society, pp. 15080–15088, 2018.","apa":"Li, H., Garner, M. H., Shangguan, Z., Chen, Y., Zheng, Q., Su, T. A., … Venkataraman, L. (2018). Large variations in the single-molecule conductance of cyclic and bicyclic silanes. <i>Journal of the American Chemical Society</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/jacs.8b10296\">https://doi.org/10.1021/jacs.8b10296</a>","ama":"Li H, Garner MH, Shangguan Z, et al. Large variations in the single-molecule conductance of cyclic and bicyclic silanes. <i>Journal of the American Chemical Society</i>. 2018;140(44):15080-15088. doi:<a href=\"https://doi.org/10.1021/jacs.8b10296\">10.1021/jacs.8b10296</a>","short":"H. Li, M.H. Garner, Z. Shangguan, Y. Chen, Q. Zheng, T.A. Su, M. Neupane, T. Liu, M.L. Steigerwald, F. Ng, C. Nuckolls, S. Xiao, G.C. Solomon, L. Venkataraman, Journal of the American Chemical Society 140 (2018) 15080–15088.","chicago":"Li, Haixing, Marc H. Garner, Zhichun Shangguan, Yan Chen, Qianwen Zheng, Timothy A. Su, Madhav Neupane, et al. “Large Variations in the Single-Molecule Conductance of Cyclic and Bicyclic Silanes.” <i>Journal of the American Chemical Society</i>. American Chemical Society, 2018. <a href=\"https://doi.org/10.1021/jacs.8b10296\">https://doi.org/10.1021/jacs.8b10296</a>."},"quality_controlled":"1","publication_identifier":{"issn":["0002-7863"],"eissn":["1520-5126"]},"issue":"44","OA_type":"closed access","volume":140,"extern":"1","pmid":1,"language":[{"iso":"eng"}],"type":"journal_article","_id":"17927"},{"abstract":[{"lang":"eng","text":"We study the single-molecule transport properties of small bandgap diketopyrrolopyrrole oligomers (DPPn, n = 1–4) with lengths varying from 1 to 5 nm. At a low bias voltage, the conductance decays exponentially as a function of length indicative of nonresonant transport. However, at a high bias voltage, we observe a remarkably high conductance close to 10–2 G0 with currents reaching over 0.1 μA across all four oligomers. These unique transport properties, together with density functional theory-based transport calculations, suggest a mechanism of resonant transport across the highly delocalized DPP backbones in the high bias regime. This study thus demonstrates the unique properties of diketopyrrolopyrrole derivatives in achieving highly efficient long-range charge transport in single-molecule devices."}],"author":[{"last_name":"Zang","first_name":"Yaping","full_name":"Zang, Yaping"},{"first_name":"Suman","full_name":"Ray, Suman","last_name":"Ray"},{"last_name":"Fung","full_name":"Fung, E-Dean","first_name":"E-Dean"},{"full_name":"Borges, Anders","first_name":"Anders","last_name":"Borges"},{"last_name":"Garner","first_name":"Marc H.","full_name":"Garner, Marc H."},{"last_name":"Steigerwald","first_name":"Michael L.","full_name":"Steigerwald, Michael L."},{"full_name":"Solomon, Gemma C.","first_name":"Gemma C.","last_name":"Solomon"},{"full_name":"Patil, Satish","first_name":"Satish","last_name":"Patil"},{"first_name":"Latha","full_name":"Venkataraman, Latha","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","last_name":"Venkataraman","orcid":"0000-0002-6957-6089"}],"publication":"Journal of the American Chemical Society","date_published":"2018-10-03T00:00:00Z","oa_version":"None","citation":{"apa":"Zang, Y., Ray, S., Fung, E.-D., Borges, A., Garner, M. H., Steigerwald, M. L., … Venkataraman, L. (2018). Resonant transport in single diketopyrrolopyrrole junctions. <i>Journal of the American Chemical Society</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/jacs.8b06964\">https://doi.org/10.1021/jacs.8b06964</a>","ama":"Zang Y, Ray S, Fung E-D, et al. Resonant transport in single diketopyrrolopyrrole junctions. <i>Journal of the American Chemical Society</i>. 2018;140(41):13167-13170. doi:<a href=\"https://doi.org/10.1021/jacs.8b06964\">10.1021/jacs.8b06964</a>","short":"Y. Zang, S. Ray, E.-D. Fung, A. Borges, M.H. Garner, M.L. Steigerwald, G.C. Solomon, S. Patil, L. Venkataraman, Journal of the American Chemical Society 140 (2018) 13167–13170.","chicago":"Zang, Yaping, Suman Ray, E-Dean Fung, Anders Borges, Marc H. Garner, Michael L. Steigerwald, Gemma C. Solomon, Satish Patil, and Latha Venkataraman. “Resonant Transport in Single Diketopyrrolopyrrole Junctions.” <i>Journal of the American Chemical Society</i>. American Chemical Society, 2018. <a href=\"https://doi.org/10.1021/jacs.8b06964\">https://doi.org/10.1021/jacs.8b06964</a>.","ista":"Zang Y, Ray S, Fung E-D, Borges A, Garner MH, Steigerwald ML, Solomon GC, Patil S, Venkataraman L. 2018. Resonant transport in single diketopyrrolopyrrole junctions. Journal of the American Chemical Society. 140(41), 13167–13170.","mla":"Zang, Yaping, et al. “Resonant Transport in Single Diketopyrrolopyrrole Junctions.” <i>Journal of the American Chemical Society</i>, vol. 140, no. 41, American Chemical Society, 2018, pp. 13167–70, doi:<a href=\"https://doi.org/10.1021/jacs.8b06964\">10.1021/jacs.8b06964</a>.","ieee":"Y. Zang <i>et al.</i>, “Resonant transport in single diketopyrrolopyrrole junctions,” <i>Journal of the American Chemical Society</i>, vol. 140, no. 41. American Chemical Society, pp. 13167–13170, 2018."},"publication_status":"published","quality_controlled":"1","issue":"41","publication_identifier":{"issn":["0002-7863"],"eissn":["1520-5126"]},"volume":140,"OA_type":"closed access","extern":"1","pmid":1,"type":"journal_article","language":[{"iso":"eng"}],"_id":"17928","scopus_import":"1","month":"10","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"13167-13170","year":"2018","external_id":{"pmid":["30280891"]},"doi":"10.1021/jacs.8b06964","article_processing_charge":"No","title":"Resonant transport in single diketopyrrolopyrrole junctions","article_type":"original","day":"03","date_created":"2024-09-09T07:55:19Z","date_updated":"2024-12-11T08:36:50Z","intvolume":"       140","status":"public","publisher":"American Chemical Society"},{"month":"09","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","article_processing_charge":"No","title":"Near length-independent conductance in polymethine molecular wires","article_type":"original","page":"6387-6391","year":"2018","external_id":{"pmid":["30187756"]},"doi":"10.1021/acs.nanolett.8b02743","intvolume":"        18","status":"public","day":"01","date_created":"2024-09-09T08:05:20Z","date_updated":"2024-12-11T08:39:06Z","publisher":"American Chemical Society","author":[{"last_name":"Gunasekaran","first_name":"Suman","full_name":"Gunasekaran, Suman"},{"last_name":"Hernangómez-Pérez","full_name":"Hernangómez-Pérez, Daniel","first_name":"Daniel"},{"last_name":"Davydenko","first_name":"Iryna","full_name":"Davydenko, Iryna"},{"last_name":"Marder","first_name":"Seth","full_name":"Marder, Seth"},{"first_name":"Ferdinand","full_name":"Evers, Ferdinand","last_name":"Evers"},{"last_name":"Venkataraman","orcid":"0000-0002-6957-6089","first_name":"Latha","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","full_name":"Venkataraman, Latha"}],"publication":"Nano Letters","date_published":"2018-09-01T00:00:00Z","abstract":[{"lang":"eng","text":"Polymethine dyes are linear π-conjugated compounds with an odd number of carbons that display a much greater delocalization in comparison to polyenes that have an even number of carbon atoms in their main chain. Herein, we perform scanning tunneling microscope based break-junction measurements on a series of three cyanine dyes of increasing length. We demonstrate, at the single molecule level, that these short chain polymethine systems exhibit a substantially smaller decay in conductance with length (attenuation factor β = 0.04 Å–1) compared to traditional polyenes (β ≈ 0.2 Å–1). Furthermore, we show that by changing solvent we are able to shift the β value, demonstrating a remarkable negative β value, with conductance increasing with molecular length. First principle calculations provide support for the experimentally observed near-uniform length dependent conductance and further suggest that the variations in β with solvent are due to solvent-induced changes in the alignment of the frontier molecular orbitals relative to the Fermi energy of the leads. A simplified Hückel model suggests that the smaller decay in conductance correlates with the smaller degree of bond order alternation present in polymethine compounds compared to polyenes. These findings may enable the design of molecular wires without a length-dependent decay for efficient electron transport at the nanoscale."}],"citation":{"short":"S. Gunasekaran, D. Hernangómez-Pérez, I. Davydenko, S. Marder, F. Evers, L. Venkataraman, Nano Letters 18 (2018) 6387–6391.","ama":"Gunasekaran S, Hernangómez-Pérez D, Davydenko I, Marder S, Evers F, Venkataraman L. Near length-independent conductance in polymethine molecular wires. <i>Nano Letters</i>. 2018;18(10):6387-6391. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.8b02743\">10.1021/acs.nanolett.8b02743</a>","chicago":"Gunasekaran, Suman, Daniel Hernangómez-Pérez, Iryna Davydenko, Seth Marder, Ferdinand Evers, and Latha Venkataraman. “Near Length-Independent Conductance in Polymethine Molecular Wires.” <i>Nano Letters</i>. American Chemical Society, 2018. <a href=\"https://doi.org/10.1021/acs.nanolett.8b02743\">https://doi.org/10.1021/acs.nanolett.8b02743</a>.","apa":"Gunasekaran, S., Hernangómez-Pérez, D., Davydenko, I., Marder, S., Evers, F., &#38; Venkataraman, L. (2018). Near length-independent conductance in polymethine molecular wires. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.8b02743\">https://doi.org/10.1021/acs.nanolett.8b02743</a>","ieee":"S. Gunasekaran, D. Hernangómez-Pérez, I. Davydenko, S. Marder, F. Evers, and L. Venkataraman, “Near length-independent conductance in polymethine molecular wires,” <i>Nano Letters</i>, vol. 18, no. 10. American Chemical Society, pp. 6387–6391, 2018.","mla":"Gunasekaran, Suman, et al. “Near Length-Independent Conductance in Polymethine Molecular Wires.” <i>Nano Letters</i>, vol. 18, no. 10, American Chemical Society, 2018, pp. 6387–91, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.8b02743\">10.1021/acs.nanolett.8b02743</a>.","ista":"Gunasekaran S, Hernangómez-Pérez D, Davydenko I, Marder S, Evers F, Venkataraman L. 2018. Near length-independent conductance in polymethine molecular wires. Nano Letters. 18(10), 6387–6391."},"publication_status":"published","quality_controlled":"1","oa_version":"None","_id":"17929","publication_identifier":{"eissn":["1530-6992"],"issn":["1530-6984"]},"issue":"10","extern":"1","OA_type":"closed access","volume":18,"pmid":1,"language":[{"iso":"eng"}],"type":"journal_article"},{"publisher":"American Chemical Society","intvolume":"       140","status":"public","day":"03","date_updated":"2024-12-11T08:42:51Z","date_created":"2024-09-09T08:14:38Z","article_processing_charge":"No","article_type":"original","title":"In situ formation of N-heterocyclic carbene-bound single-molecule junctions","year":"2018","page":"8944-8949","doi":"10.1021/jacs.8b05184","external_id":{"pmid":["29969027"]},"month":"07","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","_id":"17930","main_file_link":[{"url":"https://doi.org/10.1021/jacs.8b05184","open_access":"1"}],"volume":140,"extern":"1","OA_type":"free access","issue":"28","publication_identifier":{"issn":["0002-7863"],"eissn":["1520-5126"]},"type":"journal_article","language":[{"iso":"eng"}],"pmid":1,"citation":{"ista":"Doud EA, Inkpen MS, Lovat G, Montes E, Paley DW, Steigerwald ML, Vázquez H, Venkataraman L, Roy X. 2018. In situ formation of N-heterocyclic carbene-bound single-molecule junctions. Journal of the American Chemical Society. 140(28), 8944–8949.","mla":"Doud, Evan A., et al. “In Situ Formation of N-Heterocyclic Carbene-Bound Single-Molecule Junctions.” <i>Journal of the American Chemical Society</i>, vol. 140, no. 28, American Chemical Society, 2018, pp. 8944–49, doi:<a href=\"https://doi.org/10.1021/jacs.8b05184\">10.1021/jacs.8b05184</a>.","ieee":"E. A. Doud <i>et al.</i>, “In situ formation of N-heterocyclic carbene-bound single-molecule junctions,” <i>Journal of the American Chemical Society</i>, vol. 140, no. 28. American Chemical Society, pp. 8944–8949, 2018.","apa":"Doud, E. A., Inkpen, M. S., Lovat, G., Montes, E., Paley, D. W., Steigerwald, M. L., … Roy, X. (2018). In situ formation of N-heterocyclic carbene-bound single-molecule junctions. <i>Journal of the American Chemical Society</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/jacs.8b05184\">https://doi.org/10.1021/jacs.8b05184</a>","chicago":"Doud, Evan A., Michael S. Inkpen, Giacomo Lovat, Enrique Montes, Daniel W. Paley, Michael L. Steigerwald, Héctor Vázquez, Latha Venkataraman, and Xavier Roy. “In Situ Formation of N-Heterocyclic Carbene-Bound Single-Molecule Junctions.” <i>Journal of the American Chemical Society</i>. American Chemical Society, 2018. <a href=\"https://doi.org/10.1021/jacs.8b05184\">https://doi.org/10.1021/jacs.8b05184</a>.","short":"E.A. Doud, M.S. Inkpen, G. Lovat, E. Montes, D.W. Paley, M.L. Steigerwald, H. Vázquez, L. Venkataraman, X. Roy, Journal of the American Chemical Society 140 (2018) 8944–8949.","ama":"Doud EA, Inkpen MS, Lovat G, et al. In situ formation of N-heterocyclic carbene-bound single-molecule junctions. <i>Journal of the American Chemical Society</i>. 2018;140(28):8944-8949. doi:<a href=\"https://doi.org/10.1021/jacs.8b05184\">10.1021/jacs.8b05184</a>"},"publication_status":"published","quality_controlled":"1","oa_version":"Published Version","publication":"Journal of the American Chemical Society","author":[{"full_name":"Doud, Evan A.","first_name":"Evan A.","last_name":"Doud"},{"first_name":"Michael S.","full_name":"Inkpen, Michael S.","last_name":"Inkpen"},{"last_name":"Lovat","first_name":"Giacomo","full_name":"Lovat, Giacomo"},{"last_name":"Montes","first_name":"Enrique","full_name":"Montes, Enrique"},{"last_name":"Paley","first_name":"Daniel W.","full_name":"Paley, Daniel W."},{"first_name":"Michael L.","full_name":"Steigerwald, Michael L.","last_name":"Steigerwald"},{"last_name":"Vázquez","first_name":"Héctor","full_name":"Vázquez, Héctor"},{"orcid":"0000-0002-6957-6089","last_name":"Venkataraman","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","full_name":"Venkataraman, Latha","first_name":"Latha"},{"first_name":"Xavier","full_name":"Roy, Xavier","last_name":"Roy"}],"oa":1,"date_published":"2018-07-03T00:00:00Z","OA_place":"publisher","abstract":[{"lang":"eng","text":"Self-assembled monolayers (SAMs) formed using N-heterocyclic carbenes (NHCs) have recently emerged as thermally and chemically ultrastable alternatives to those formed from thiols. The rich chemistry and strong σ-donating ability of NHCs offer unique prospects for applications in nanoelectronics, sensing, and electrochemistry. Although stable in SAMs, free carbenes are notoriously reactive, making their electronic characterization challenging. Here we report the first investigation of electron transport across single NHC-bound molecules using the scanning tunneling microscope-based break junction (STM-BJ) technique. We develop a series of air-stable metal NHC complexes that can be electrochemically reduced in situ to form NHC–electrode contacts, enabling reliable single-molecule conductance measurements of NHCs under ambient conditions. Using this approach, we show that the conductance of an NHC depends on the identity of the single metal atom to which it is coordinated in the junction. Our observations are supported by density functional theory (DFT) calculations, which also firmly establish the contributions of the NHC linker to the junction transport characteristics. Our work demonstrates a powerful method to probe electron transfer across NHC–electrode interfaces; more generally, it opens the door to the exploitation of surface-bound NHCs in constructing novel, functionalized electrodes and/or nanoelectronic devices."}]},{"_id":"17931","OA_type":"closed access","volume":558,"extern":"1","publication_identifier":{"eissn":["1476-4687"],"issn":["0028-0836"]},"issue":"7710","language":[{"iso":"eng"}],"type":"journal_article","pmid":1,"publication":"Nature","author":[{"first_name":"Marc H.","full_name":"Garner, Marc H.","last_name":"Garner"},{"first_name":"Haixing","full_name":"Li, Haixing","last_name":"Li"},{"last_name":"Chen","full_name":"Chen, Yan","first_name":"Yan"},{"last_name":"Su","first_name":"Timothy A.","full_name":"Su, Timothy A."},{"last_name":"Shangguan","full_name":"Shangguan, Zhichun","first_name":"Zhichun"},{"last_name":"Paley","first_name":"Daniel W.","full_name":"Paley, Daniel W."},{"last_name":"Liu","first_name":"Taifeng","full_name":"Liu, Taifeng"},{"last_name":"Ng","first_name":"Fay","full_name":"Ng, Fay"},{"full_name":"Li, Hexing","first_name":"Hexing","last_name":"Li"},{"first_name":"Shengxiong","full_name":"Xiao, Shengxiong","last_name":"Xiao"},{"last_name":"Nuckolls","full_name":"Nuckolls, Colin","first_name":"Colin"},{"first_name":"Latha","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","full_name":"Venkataraman, Latha","last_name":"Venkataraman","orcid":"0000-0002-6957-6089"},{"last_name":"Solomon","first_name":"Gemma C.","full_name":"Solomon, Gemma C."}],"date_published":"2018-06-06T00:00:00Z","abstract":[{"text":"The tunnelling of electrons through molecules (and through any nanoscale insulating and dielectric material1) shows exponential attenuation with increasing length2, a length dependence that is reflected in the ability of the electrons to carry an electrical current. It was recently demonstrated3,4,5 that coherent tunnelling through a molecular junction can also be suppressed by destructive quantum interference6, a mechanism that is not length-dependent. For the carbon-based molecules studied previously, cancelling all transmission channels would involve the suppression of contributions to the current from both the π-orbital and σ-orbital systems. Previous reports of destructive interference have demonstrated a decrease in transmission only through the π-channel. Here we report a saturated silicon-based molecule with a functionalized bicyclo[2.2.2]octasilane moiety that exhibits destructive quantum interference in its σ-system. Although molecular silicon typically forms conducting wires7, we use a combination of conductance measurements and ab initio calculations to show that destructive σ-interference, achieved here by locking the silicon–silicon bonds into eclipsed conformations within a bicyclic molecular framework, can yield extremely insulating molecules less than a nanometre in length. Our molecules also exhibit an unusually high thermopower (0.97 millivolts per kelvin), which is a further experimental signature of the suppression of all tunnelling paths by destructive interference: calculations indicate that the central bicyclo[2.2.2]octasilane unit is rendered less conductive than the empty space it occupies. The molecular design presented here provides a proof-of-concept for a quantum-interference-based approach to single-molecule insulators.","lang":"eng"}],"citation":{"ista":"Garner MH, Li H, Chen Y, Su TA, Shangguan Z, Paley DW, Liu T, Ng F, Li H, Xiao S, Nuckolls C, Venkataraman L, Solomon GC. 2018. Comprehensive suppression of single-molecule conductance using destructive σ-interference. Nature. 558(7710), 415–419.","ieee":"M. H. Garner <i>et al.</i>, “Comprehensive suppression of single-molecule conductance using destructive σ-interference,” <i>Nature</i>, vol. 558, no. 7710. Springer Nature, pp. 415–419, 2018.","mla":"Garner, Marc H., et al. “Comprehensive Suppression of Single-Molecule Conductance Using Destructive σ-Interference.” <i>Nature</i>, vol. 558, no. 7710, Springer Nature, 2018, pp. 415–19, doi:<a href=\"https://doi.org/10.1038/s41586-018-0197-9\">10.1038/s41586-018-0197-9</a>.","apa":"Garner, M. H., Li, H., Chen, Y., Su, T. A., Shangguan, Z., Paley, D. W., … Solomon, G. C. (2018). Comprehensive suppression of single-molecule conductance using destructive σ-interference. <i>Nature</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41586-018-0197-9\">https://doi.org/10.1038/s41586-018-0197-9</a>","short":"M.H. Garner, H. Li, Y. Chen, T.A. Su, Z. Shangguan, D.W. Paley, T. Liu, F. Ng, H. Li, S. Xiao, C. Nuckolls, L. Venkataraman, G.C. Solomon, Nature 558 (2018) 415–419.","chicago":"Garner, Marc H., Haixing Li, Yan Chen, Timothy A. Su, Zhichun Shangguan, Daniel W. Paley, Taifeng Liu, et al. “Comprehensive Suppression of Single-Molecule Conductance Using Destructive σ-Interference.” <i>Nature</i>. Springer Nature, 2018. <a href=\"https://doi.org/10.1038/s41586-018-0197-9\">https://doi.org/10.1038/s41586-018-0197-9</a>.","ama":"Garner MH, Li H, Chen Y, et al. Comprehensive suppression of single-molecule conductance using destructive σ-interference. <i>Nature</i>. 2018;558(7710):415-419. doi:<a href=\"https://doi.org/10.1038/s41586-018-0197-9\">10.1038/s41586-018-0197-9</a>"},"publication_status":"published","quality_controlled":"1","oa_version":"None","intvolume":"       558","status":"public","day":"06","date_updated":"2024-12-11T08:51:55Z","date_created":"2024-09-09T08:17:04Z","publisher":"Springer Nature","month":"06","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","article_processing_charge":"No","title":"Comprehensive suppression of single-molecule conductance using destructive σ-interference","article_type":"letter_note","year":"2018","page":"415-419","doi":"10.1038/s41586-018-0197-9","external_id":{"pmid":["29875407"]}},{"status":"public","intvolume":"        10","date_created":"2024-09-09T08:19:10Z","date_updated":"2024-12-11T08:56:09Z","day":"26","publisher":"Royal Society of Chemistry","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"03","scopus_import":"1","article_type":"original","title":"Tuning ultrafast electron injection dynamics at organic-graphene/metal interfaces","article_processing_charge":"No","external_id":{"pmid":["29667672"]},"doi":"10.1039/c7nr08737c","page":"8014-8022","year":"2018","_id":"17932","pmid":1,"language":[{"iso":"eng"}],"type":"journal_article","publication_identifier":{"eissn":["2040-3372"],"issn":["2040-3364"]},"issue":"17","volume":10,"OA_type":"closed access","extern":"1","date_published":"2018-03-26T00:00:00Z","author":[{"last_name":"Ravikumar","first_name":"Abhilash","full_name":"Ravikumar, Abhilash"},{"full_name":"Kladnik, Gregor","first_name":"Gregor","last_name":"Kladnik"},{"last_name":"Müller","first_name":"Moritz","full_name":"Müller, Moritz"},{"full_name":"Cossaro, Albano","first_name":"Albano","last_name":"Cossaro"},{"full_name":"Bavdek, Gregor","first_name":"Gregor","last_name":"Bavdek"},{"last_name":"Patera","first_name":"Laerte L.","full_name":"Patera, Laerte L."},{"last_name":"Sánchez-Portal","full_name":"Sánchez-Portal, Daniel","first_name":"Daniel"},{"first_name":"Latha","full_name":"Venkataraman, Latha","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","last_name":"Venkataraman","orcid":"0000-0002-6957-6089"},{"last_name":"Morgante","full_name":"Morgante, Alberto","first_name":"Alberto"},{"first_name":"Gian Paolo","full_name":"Brivio, Gian Paolo","last_name":"Brivio"},{"last_name":"Cvetko","full_name":"Cvetko, Dean","first_name":"Dean"},{"last_name":"Fratesi","full_name":"Fratesi, Guido","first_name":"Guido"}],"publication":"Nanoscale","abstract":[{"text":"We compare the ultrafast charge transfer dynamics of molecules on epitaxial graphene and bilayer graphene grown on Ni(111) interfaces through first principles calculations and X-ray resonant photoemission spectroscopy. We use 4,4′-bipyridine as a prototypical molecule for these explorations as the energy level alignment of core-excited molecular orbitals allows ultrafast injection of electrons from a substrate to a molecule on a femtosecond timescale. We show that the ultrafast injection of electrons from the substrate to the molecule is ∼4 times slower on weakly coupled bilayer graphene than on epitaxial graphene. Through our experiments and calculations, we can attribute this to a difference in the density of states close to the Fermi level between graphene and bilayer graphene. We therefore show how graphene coupling with the substrate influences charge transfer dynamics between organic molecules and graphene interfaces.","lang":"eng"}],"quality_controlled":"1","publication_status":"published","citation":{"ista":"Ravikumar A, Kladnik G, Müller M, Cossaro A, Bavdek G, Patera LL, Sánchez-Portal D, Venkataraman L, Morgante A, Brivio GP, Cvetko D, Fratesi G. 2018. Tuning ultrafast electron injection dynamics at organic-graphene/metal interfaces. Nanoscale. 10(17), 8014–8022.","ieee":"A. Ravikumar <i>et al.</i>, “Tuning ultrafast electron injection dynamics at organic-graphene/metal interfaces,” <i>Nanoscale</i>, vol. 10, no. 17. Royal Society of Chemistry, pp. 8014–8022, 2018.","mla":"Ravikumar, Abhilash, et al. “Tuning Ultrafast Electron Injection Dynamics at Organic-Graphene/Metal Interfaces.” <i>Nanoscale</i>, vol. 10, no. 17, Royal Society of Chemistry, 2018, pp. 8014–22, doi:<a href=\"https://doi.org/10.1039/c7nr08737c\">10.1039/c7nr08737c</a>.","apa":"Ravikumar, A., Kladnik, G., Müller, M., Cossaro, A., Bavdek, G., Patera, L. L., … Fratesi, G. (2018). Tuning ultrafast electron injection dynamics at organic-graphene/metal interfaces. <i>Nanoscale</i>. Royal Society of Chemistry. <a href=\"https://doi.org/10.1039/c7nr08737c\">https://doi.org/10.1039/c7nr08737c</a>","short":"A. Ravikumar, G. Kladnik, M. Müller, A. Cossaro, G. Bavdek, L.L. Patera, D. Sánchez-Portal, L. Venkataraman, A. Morgante, G.P. Brivio, D. Cvetko, G. Fratesi, Nanoscale 10 (2018) 8014–8022.","chicago":"Ravikumar, Abhilash, Gregor Kladnik, Moritz Müller, Albano Cossaro, Gregor Bavdek, Laerte L. Patera, Daniel Sánchez-Portal, et al. “Tuning Ultrafast Electron Injection Dynamics at Organic-Graphene/Metal Interfaces.” <i>Nanoscale</i>. Royal Society of Chemistry, 2018. <a href=\"https://doi.org/10.1039/c7nr08737c\">https://doi.org/10.1039/c7nr08737c</a>.","ama":"Ravikumar A, Kladnik G, Müller M, et al. Tuning ultrafast electron injection dynamics at organic-graphene/metal interfaces. <i>Nanoscale</i>. 2018;10(17):8014-8022. doi:<a href=\"https://doi.org/10.1039/c7nr08737c\">10.1039/c7nr08737c</a>"},"oa_version":"None"},{"oa_version":"Published Version","publication_status":"published","citation":{"ieee":"A. Magyarkuti, O. Adak, A. Halbritter, and L. Venkataraman, “Electronic and mechanical characteristics of stacked dimer molecular junctions,” <i>Nanoscale</i>, vol. 10, no. 7. Royal Society of Chemistry, pp. 3362–3368, 2018.","mla":"Magyarkuti, András, et al. “Electronic and Mechanical Characteristics of Stacked Dimer Molecular Junctions.” <i>Nanoscale</i>, vol. 10, no. 7, Royal Society of Chemistry, 2018, pp. 3362–68, doi:<a href=\"https://doi.org/10.1039/c7nr08354h\">10.1039/c7nr08354h</a>.","ista":"Magyarkuti A, Adak O, Halbritter A, Venkataraman L. 2018. Electronic and mechanical characteristics of stacked dimer molecular junctions. Nanoscale. 10(7), 3362–3368.","ama":"Magyarkuti A, Adak O, Halbritter A, Venkataraman L. Electronic and mechanical characteristics of stacked dimer molecular junctions. <i>Nanoscale</i>. 2018;10(7):3362-3368. doi:<a href=\"https://doi.org/10.1039/c7nr08354h\">10.1039/c7nr08354h</a>","chicago":"Magyarkuti, András, Olgun Adak, Andras Halbritter, and Latha Venkataraman. “Electronic and Mechanical Characteristics of Stacked Dimer Molecular Junctions.” <i>Nanoscale</i>. Royal Society of Chemistry, 2018. <a href=\"https://doi.org/10.1039/c7nr08354h\">https://doi.org/10.1039/c7nr08354h</a>.","short":"A. Magyarkuti, O. Adak, A. Halbritter, L. Venkataraman, Nanoscale 10 (2018) 3362–3368.","apa":"Magyarkuti, A., Adak, O., Halbritter, A., &#38; Venkataraman, L. (2018). Electronic and mechanical characteristics of stacked dimer molecular junctions. <i>Nanoscale</i>. Royal Society of Chemistry. <a href=\"https://doi.org/10.1039/c7nr08354h\">https://doi.org/10.1039/c7nr08354h</a>"},"quality_controlled":"1","abstract":[{"lang":"eng","text":"Break-junction measurements are typically aimed at characterizing electronic properties of single molecules bound between two metal electrodes. Although these measurements have provided structure–function relationships for such devices, there is little work that studies the impact of molecule-molecule interactions on junction characteristics. Here, we use a scanning tunneling microscope based break-junction technique to study pi-stacked dimer junctions formed with two amine-terminated conjugated molecules. We show that the conductance, force and flicker noise of such dimers differ dramatically when compared with the corresponding monomer junctions and discuss the implications of these results on intra- and inter-molecular charge transport."}],"OA_place":"publisher","author":[{"last_name":"Magyarkuti","full_name":"Magyarkuti, András","first_name":"András"},{"last_name":"Adak","first_name":"Olgun","full_name":"Adak, Olgun"},{"last_name":"Halbritter","first_name":"Andras","full_name":"Halbritter, Andras"},{"last_name":"Venkataraman","orcid":"0000-0002-6957-6089","first_name":"Latha","full_name":"Venkataraman, Latha","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf"}],"publication":"Nanoscale","oa":1,"date_published":"2018-01-09T00:00:00Z","issue":"7","publication_identifier":{"eissn":["2040-3372"],"issn":["2040-3364"]},"volume":10,"OA_type":"hybrid","extern":"1","pmid":1,"type":"journal_article","language":[{"iso":"eng"}],"_id":"17933","main_file_link":[{"open_access":"1","url":"DOI\thttps://doi.org/10.1039/C7NR08354H"}],"license":"https://creativecommons.org/licenses/by-nc/3.0/","page":"3362-3368","year":"2018","doi":"10.1039/c7nr08354h","external_id":{"pmid":["29388658"]},"article_processing_charge":"No","tmp":{"name":"Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc/3.0/legalcode","image":"/images/cc_by_nc.png","short":"CC BY-NC (3.0)"},"title":"Electronic and mechanical characteristics of stacked dimer molecular junctions","article_type":"original","scopus_import":"1","month":"01","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"Royal Society of Chemistry","day":"09","date_updated":"2024-12-17T10:00:20Z","date_created":"2024-09-09T08:30:14Z","intvolume":"        10","status":"public"},{"abstract":[{"lang":"eng","text":"We measure the conductance of unmodified peptides at the single-molecule level using the scanning tunneling microscope-based break-junction method, utilizing the N-terminal amine group and the C-terminal carboxyl group as gold metal-binding linkers. Our conductance measurements of oligoglycine and oligoalanine backbones do not rely on peptide side-chain linkers. We compare our results with alkanes terminated asymmetrically with an amine group on one end and a carboxyl group on the other to show that peptide bonds decrease the conductance of an otherwise saturated carbon chain. Using a newly developed first-principles approach, we attribute the decrease in conductance to charge localization at the peptide bond, which reduces the energy of the frontier orbitals relative to the Fermi energy and the electronic coupling to the leads, lowering the tunneling probability. Crucially, this manifests as an increase in conductance decay of peptide backbones with increasing length when compared with alkanes."}],"OA_place":"repository","oa":1,"date_published":"2018-01-27T00:00:00Z","publication":"The Journal of Physical Chemistry Letters","author":[{"first_name":"Joseph M.","full_name":"Brisendine, Joseph M.","last_name":"Brisendine"},{"full_name":"Refaely-Abramson, Sivan","first_name":"Sivan","last_name":"Refaely-Abramson"},{"first_name":"Zhen-Fei","full_name":"Liu, Zhen-Fei","last_name":"Liu"},{"last_name":"Cui","first_name":"Jing","full_name":"Cui, Jing"},{"first_name":"Fay","full_name":"Ng, Fay","last_name":"Ng"},{"last_name":"Neaton","full_name":"Neaton, Jeffrey B.","first_name":"Jeffrey B."},{"full_name":"Koder, Ronald L.","first_name":"Ronald L.","last_name":"Koder"},{"full_name":"Venkataraman, Latha","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","first_name":"Latha","orcid":"0000-0002-6957-6089","last_name":"Venkataraman"}],"oa_version":"Submitted Version","quality_controlled":"1","citation":{"apa":"Brisendine, J. M., Refaely-Abramson, S., Liu, Z.-F., Cui, J., Ng, F., Neaton, J. B., … Venkataraman, L. (2018). Probing charge transport through peptide bonds. <i>The Journal of Physical Chemistry Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.jpclett.8b00176\">https://doi.org/10.1021/acs.jpclett.8b00176</a>","ama":"Brisendine JM, Refaely-Abramson S, Liu Z-F, et al. Probing charge transport through peptide bonds. <i>The Journal of Physical Chemistry Letters</i>. 2018;9(4):763-767. doi:<a href=\"https://doi.org/10.1021/acs.jpclett.8b00176\">10.1021/acs.jpclett.8b00176</a>","short":"J.M. Brisendine, S. Refaely-Abramson, Z.-F. Liu, J. Cui, F. Ng, J.B. Neaton, R.L. Koder, L. Venkataraman, The Journal of Physical Chemistry Letters 9 (2018) 763–767.","chicago":"Brisendine, Joseph M., Sivan Refaely-Abramson, Zhen-Fei Liu, Jing Cui, Fay Ng, Jeffrey B. Neaton, Ronald L. Koder, and Latha Venkataraman. “Probing Charge Transport through Peptide Bonds.” <i>The Journal of Physical Chemistry Letters</i>. American Chemical Society, 2018. <a href=\"https://doi.org/10.1021/acs.jpclett.8b00176\">https://doi.org/10.1021/acs.jpclett.8b00176</a>.","ista":"Brisendine JM, Refaely-Abramson S, Liu Z-F, Cui J, Ng F, Neaton JB, Koder RL, Venkataraman L. 2018. Probing charge transport through peptide bonds. The Journal of Physical Chemistry Letters. 9(4), 763–767.","ieee":"J. M. Brisendine <i>et al.</i>, “Probing charge transport through peptide bonds,” <i>The Journal of Physical Chemistry Letters</i>, vol. 9, no. 4. American Chemical Society, pp. 763–767, 2018.","mla":"Brisendine, Joseph M., et al. “Probing Charge Transport through Peptide Bonds.” <i>The Journal of Physical Chemistry Letters</i>, vol. 9, no. 4, American Chemical Society, 2018, pp. 763–67, doi:<a href=\"https://doi.org/10.1021/acs.jpclett.8b00176\">10.1021/acs.jpclett.8b00176</a>."},"publication_status":"published","language":[{"iso":"eng"}],"type":"journal_article","pmid":1,"OA_type":"green","extern":"1","volume":9,"publication_identifier":{"eissn":["1948-7185"]},"issue":"4","main_file_link":[{"url":"https://europepmc.org/article/med/29376375#free-full-text","open_access":"1"}],"_id":"17934","scopus_import":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"01","doi":"10.1021/acs.jpclett.8b00176","external_id":{"pmid":["29376375"]},"year":"2018","page":"763-767","article_type":"letter_note","title":"Probing charge transport through peptide bonds","article_processing_charge":"No","date_updated":"2024-12-17T09:41:02Z","date_created":"2024-09-09T08:34:32Z","day":"27","status":"public","intvolume":"         9","publisher":"American Chemical Society"},{"publisher":"Charles Babbage Research Centre","intvolume":"       141","isi":1,"status":"public","day":"01","date_created":"2018-12-11T11:44:11Z","date_updated":"2023-09-19T14:46:18Z","article_processing_charge":"No","publist_id":"8037","title":"Superconcentrators of density 25.3","department":[{"_id":"VlKo"}],"year":"2018","page":"269 - 304","external_id":{"isi":["000446809500022"],"arxiv":["1405.7828"]},"month":"10","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1405.7828"}],"_id":"18","volume":141,"issue":"10","publication_identifier":{"issn":["0381-7032"]},"language":[{"iso":"eng"}],"type":"journal_article","arxiv":1,"citation":{"ieee":"V. Kolmogorov and M. Rolinek, “Superconcentrators of density 25.3,” <i>Ars Combinatoria</i>, vol. 141, no. 10. Charles Babbage Research Centre, pp. 269–304, 2018.","mla":"Kolmogorov, Vladimir, and Michal Rolinek. “Superconcentrators of Density 25.3.” <i>Ars Combinatoria</i>, vol. 141, no. 10, Charles Babbage Research Centre, 2018, pp. 269–304.","ista":"Kolmogorov V, Rolinek M. 2018. Superconcentrators of density 25.3. Ars Combinatoria. 141(10), 269–304.","ama":"Kolmogorov V, Rolinek M. Superconcentrators of density 25.3. <i>Ars Combinatoria</i>. 2018;141(10):269-304.","short":"V. Kolmogorov, M. Rolinek, Ars Combinatoria 141 (2018) 269–304.","chicago":"Kolmogorov, Vladimir, and Michal Rolinek. “Superconcentrators of Density 25.3.” <i>Ars Combinatoria</i>. Charles Babbage Research Centre, 2018.","apa":"Kolmogorov, V., &#38; Rolinek, M. (2018). Superconcentrators of density 25.3. <i>Ars Combinatoria</i>. Charles Babbage Research Centre."},"publication_status":"published","quality_controlled":"1","oa_version":"Preprint","publication":"Ars Combinatoria","author":[{"last_name":"Kolmogorov","first_name":"Vladimir","id":"3D50B0BA-F248-11E8-B48F-1D18A9856A87","full_name":"Kolmogorov, Vladimir"},{"first_name":"Michal","full_name":"Rolinek, Michal","id":"3CB3BC06-F248-11E8-B48F-1D18A9856A87","last_name":"Rolinek"}],"oa":1,"date_published":"2018-10-01T00:00:00Z","abstract":[{"text":"An N-superconcentrator is a directed, acyclic graph with N input nodes and N output nodes such that every subset of the inputs and every subset of the outputs of same cardinality can be connected by node-disjoint paths. It is known that linear-size and bounded-degree superconcentrators exist. We prove the existence of such superconcentrators with asymptotic density 25.3 (where the density is the number of edges divided by N). The previously best known densities were 28 [12] and 27.4136 [17].","lang":"eng"}]},{"doi":"10.5802/jep.64","external_id":{"arxiv":["1705.10676"]},"page":"79 - 116","year":"2018","title":"Statistical mechanics of the uniform electron gas","department":[{"_id":"RoSe"}],"article_type":"original","publist_id":"7741","tmp":{"short":"CC BY-ND (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nd/4.0/legalcode","image":"/image/cc_by_nd.png","name":"Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)"},"article_processing_charge":"No","scopus_import":"1","has_accepted_license":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file":[{"creator":"dernst","checksum":"1ba7cccdf3900f42c4f715ae75d6813c","file_size":843938,"relation":"main_file","access_level":"open_access","file_name":"2018_JournaldeLecoleMath_Lewi.pdf","content_type":"application/pdf","date_created":"2018-12-17T16:38:18Z","date_updated":"2020-07-14T12:45:16Z","file_id":"5726"}],"month":"07","file_date_updated":"2020-07-14T12:45:16Z","ec_funded":1,"ddc":["510"],"publisher":"Ecole Polytechnique","date_updated":"2025-04-14T07:26:59Z","date_created":"2018-12-11T11:45:03Z","day":"01","status":"public","intvolume":"         5","project":[{"_id":"25C6DC12-B435-11E9-9278-68D0E5697425","grant_number":"694227","name":"Analysis of quantum many-body systems","call_identifier":"H2020"},{"call_identifier":"FWF","name":"Structure of the Excitation Spectrum for Many-Body Quantum Systems","grant_number":"P27533_N27","_id":"25C878CE-B435-11E9-9278-68D0E5697425"}],"oa_version":"Published Version","acknowledgement":"This project has received funding from the European Research Council (ERC) under the European\r\nUnion’s Horizon 2020 research and innovation programme (grant agreement 694227 for R.S. and MDFT 725528 for M.L.). Financial support by the Austrian Science Fund (FWF), project No P 27533-N27 (R.S.) and by the US National Science Foundation, grant No PHY12-1265118 (E.H.L.) are gratefully acknowledged.","quality_controlled":"1","publication_status":"published","citation":{"short":"M. Lewi, É. Lieb, R. Seiringer, Journal de l’Ecole Polytechnique - Mathematiques 5 (2018) 79–116.","ama":"Lewi M, Lieb É, Seiringer R. Statistical mechanics of the uniform electron gas. <i>Journal de l’Ecole Polytechnique - Mathematiques</i>. 2018;5:79-116. doi:<a href=\"https://doi.org/10.5802/jep.64\">10.5802/jep.64</a>","chicago":"Lewi, Mathieu, Élliott Lieb, and Robert Seiringer. “Statistical Mechanics of the Uniform Electron Gas.” <i>Journal de l’Ecole Polytechnique - Mathematiques</i>. Ecole Polytechnique, 2018. <a href=\"https://doi.org/10.5802/jep.64\">https://doi.org/10.5802/jep.64</a>.","apa":"Lewi, M., Lieb, É., &#38; Seiringer, R. (2018). Statistical mechanics of the uniform electron gas. <i>Journal de l’Ecole Polytechnique - Mathematiques</i>. Ecole Polytechnique. <a href=\"https://doi.org/10.5802/jep.64\">https://doi.org/10.5802/jep.64</a>","mla":"Lewi, Mathieu, et al. “Statistical Mechanics of the Uniform Electron Gas.” <i>Journal de l’Ecole Polytechnique - Mathematiques</i>, vol. 5, Ecole Polytechnique, 2018, pp. 79–116, doi:<a href=\"https://doi.org/10.5802/jep.64\">10.5802/jep.64</a>.","ieee":"M. Lewi, É. Lieb, and R. Seiringer, “Statistical mechanics of the uniform electron gas,” <i>Journal de l’Ecole Polytechnique - Mathematiques</i>, vol. 5. Ecole Polytechnique, pp. 79–116, 2018.","ista":"Lewi M, Lieb É, Seiringer R. 2018. Statistical mechanics of the uniform electron gas. Journal de l’Ecole Polytechnique - Mathematiques. 5, 79–116."},"abstract":[{"lang":"eng","text":"In this paper we define and study the classical Uniform Electron Gas (UEG), a system of infinitely many electrons whose density is constant everywhere in space. The UEG is defined differently from Jellium, which has a positive constant background but no constraint on the density. We prove that the UEG arises in Density Functional Theory in the limit of a slowly varying density, minimizing the indirect Coulomb energy. We also construct the quantum UEG and compare it to the classical UEG at low density."}],"oa":1,"date_published":"2018-07-01T00:00:00Z","author":[{"last_name":"Lewi","full_name":"Lewi, Mathieu","first_name":"Mathieu"},{"full_name":"Lieb, Élliott","first_name":"Élliott","last_name":"Lieb"},{"orcid":"0000-0002-6781-0521","last_name":"Seiringer","full_name":"Seiringer, Robert","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","first_name":"Robert"}],"publication":"Journal de l'Ecole Polytechnique - Mathematiques","language":[{"iso":"eng"}],"type":"journal_article","publication_identifier":{"issn":["2429-7100"],"eissn":["2270-518X"]},"volume":5,"_id":"180","arxiv":1,"license":"https://creativecommons.org/licenses/by-nd/4.0/"},{"pubrep_id":"967","related_material":{"record":[{"id":"7172","relation":"dissertation_contains","status":"public"},{"id":"1127","status":"public","relation":"dissertation_contains"},{"id":"8822","relation":"dissertation_contains","status":"public"}]},"volume":14,"issue":"1","type":"journal_article","language":[{"iso":"eng"}],"_id":"449","abstract":[{"lang":"eng","text":"Auxin is unique among plant hormones due to its directional transport that is mediated by the polarly distributed PIN auxin transporters at the plasma membrane. The canalization hypothesis proposes that the auxin feedback on its polar flow is a crucial, plant-specific mechanism mediating multiple self-organizing developmental processes. Here, we used the auxin effect on the PIN polar localization in Arabidopsis thaliana roots as a proxy for the auxin feedback on the PIN polarity during canalization. We performed microarray experiments to find regulators of this process that act downstream of auxin. We identified genes that were transcriptionally regulated by auxin in an AXR3/IAA17- and ARF7/ARF19-dependent manner. Besides the known components of the PIN polarity, such as PID and PIP5K kinases, a number of potential new regulators were detected, among which the WRKY23 transcription factor, which was characterized in more detail. Gain- and loss-of-function mutants confirmed a role for WRKY23 in mediating the auxin effect on the PIN polarity. Accordingly, processes requiring auxin-mediated PIN polarity rearrangements, such as vascular tissue development during leaf venation, showed a higher WRKY23 expression and required the WRKY23 activity. Our results provide initial insights into the auxin transcriptional network acting upstream of PIN polarization and, potentially, canalization-mediated plant development."}],"publication":"PLoS Genetics","author":[{"last_name":"Prat","full_name":"Prat, Tomas","id":"3DA3BFEE-F248-11E8-B48F-1D18A9856A87","first_name":"Tomas"},{"id":"4800CC20-F248-11E8-B48F-1D18A9856A87","full_name":"Hajny, Jakub","first_name":"Jakub","orcid":"0000-0003-2140-7195","last_name":"Hajny"},{"last_name":"Grunewald","first_name":"Wim","full_name":"Grunewald, Wim"},{"last_name":"Vasileva","first_name":"Mina K","full_name":"Vasileva, Mina K","id":"3407EB18-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Gergely","full_name":"Molnar, Gergely","id":"34F1AF46-F248-11E8-B48F-1D18A9856A87","last_name":"Molnar"},{"last_name":"Tejos","full_name":"Tejos, Ricardo","first_name":"Ricardo"},{"first_name":"Markus","full_name":"Schmid, Markus","last_name":"Schmid"},{"last_name":"Sauer","first_name":"Michael","full_name":"Sauer, Michael"},{"first_name":"Jirí","full_name":"Friml, Jirí","id":"4159519E-F248-11E8-B48F-1D18A9856A87","last_name":"Friml","orcid":"0000-0002-8302-7596"}],"date_published":"2018-01-29T00:00:00Z","oa":1,"oa_version":"Published Version","citation":{"mla":"Prat, Tomas, et al. “WRKY23 Is a Component of the Transcriptional Network Mediating Auxin Feedback on PIN Polarity.” <i>PLoS Genetics</i>, vol. 14, no. 1, Public Library of Science, 2018, doi:<a href=\"https://doi.org/10.1371/journal.pgen.1007177\">10.1371/journal.pgen.1007177</a>.","ieee":"T. Prat <i>et al.</i>, “WRKY23 is a component of the transcriptional network mediating auxin feedback on PIN polarity,” <i>PLoS Genetics</i>, vol. 14, no. 1. Public Library of Science, 2018.","ista":"Prat T, Hajny J, Grunewald W, Vasileva MK, Molnar G, Tejos R, Schmid M, Sauer M, Friml J. 2018. WRKY23 is a component of the transcriptional network mediating auxin feedback on PIN polarity. PLoS Genetics. 14(1).","ama":"Prat T, Hajny J, Grunewald W, et al. WRKY23 is a component of the transcriptional network mediating auxin feedback on PIN polarity. <i>PLoS Genetics</i>. 2018;14(1). doi:<a href=\"https://doi.org/10.1371/journal.pgen.1007177\">10.1371/journal.pgen.1007177</a>","short":"T. Prat, J. Hajny, W. Grunewald, M.K. Vasileva, G. Molnar, R. Tejos, M. Schmid, M. Sauer, J. Friml, PLoS Genetics 14 (2018).","chicago":"Prat, Tomas, Jakub Hajny, Wim Grunewald, Mina K Vasileva, Gergely Molnar, Ricardo Tejos, Markus Schmid, Michael Sauer, and Jiří Friml. “WRKY23 Is a Component of the Transcriptional Network Mediating Auxin Feedback on PIN Polarity.” <i>PLoS Genetics</i>. Public Library of Science, 2018. <a href=\"https://doi.org/10.1371/journal.pgen.1007177\">https://doi.org/10.1371/journal.pgen.1007177</a>.","apa":"Prat, T., Hajny, J., Grunewald, W., Vasileva, M. K., Molnar, G., Tejos, R., … Friml, J. (2018). WRKY23 is a component of the transcriptional network mediating auxin feedback on PIN polarity. <i>PLoS Genetics</i>. Public Library of Science. <a href=\"https://doi.org/10.1371/journal.pgen.1007177\">https://doi.org/10.1371/journal.pgen.1007177</a>"},"publication_status":"published","quality_controlled":"1","day":"29","date_updated":"2026-06-22T22:30:07Z","date_created":"2018-12-11T11:46:32Z","project":[{"_id":"25716A02-B435-11E9-9278-68D0E5697425","name":"Polarity and subcellular dynamics in plants","grant_number":"282300","call_identifier":"FP7"}],"intvolume":"        14","isi":1,"status":"public","ec_funded":1,"publisher":"Public Library of Science","ddc":["581"],"has_accepted_license":"1","scopus_import":"1","month":"01","file_date_updated":"2020-07-14T12:46:30Z","file":[{"file_size":24709062,"creator":"system","checksum":"0276d66788ec076f4924164a39e6a712","relation":"main_file","file_name":"IST-2018-967-v1+1_journal.pgen.1007177.pdf","access_level":"open_access","date_created":"2018-12-12T10:10:52Z","date_updated":"2020-07-14T12:46:30Z","file_id":"4843","content_type":"application/pdf"}],"corr_author":"1","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","year":"2018","external_id":{"isi":["000423718600034"]},"doi":"10.1371/journal.pgen.1007177","article_processing_charge":"Yes","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"publist_id":"7373","department":[{"_id":"JiFr"}],"title":"WRKY23 is a component of the transcriptional network mediating auxin feedback on PIN polarity"},{"date_created":"2018-12-11T11:45:06Z","date_updated":"2026-06-22T22:30:07Z","day":"06","status":"public","isi":1,"project":[{"grant_number":"282300","name":"Polarity and subcellular dynamics in plants","call_identifier":"FP7","_id":"25716A02-B435-11E9-9278-68D0E5697425"},{"_id":"261099A6-B435-11E9-9278-68D0E5697425","grant_number":"742985","name":"Tracing Evolution of Auxin Transport and Polarity in Plants","call_identifier":"H2020"}],"intvolume":"         8","ec_funded":1,"publisher":"Springer","ddc":["581"],"has_accepted_license":"1","scopus_import":"1","file":[{"file_size":2413876,"creator":"dernst","checksum":"266b03f4fb8198e83141617aaa99dcab","relation":"main_file","file_name":"2018_ScientificReports_Grones.pdf","access_level":"open_access","date_updated":"2020-07-14T12:45:20Z","date_created":"2018-12-17T15:38:56Z","file_id":"5714","content_type":"application/pdf"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","file_date_updated":"2020-07-14T12:45:20Z","month":"07","doi":"10.1038/s41598-018-28188-1","external_id":{"isi":["000437673200053"]},"year":"2018","department":[{"_id":"JiFr"},{"_id":"EvBe"}],"title":"PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"article_processing_charge":"No","publist_id":"7729","related_material":{"record":[{"id":"8822","relation":"dissertation_contains","status":"public"}]},"type":"journal_article","language":[{"iso":"eng"}],"volume":8,"issue":"1","article_number":"10279","_id":"191","abstract":[{"text":"Intercellular distribution of the plant hormone auxin largely depends on the polar subcellular distribution of the plasma membrane PIN-FORMED (PIN) auxin transporters. PIN polarity switches in response to different developmental and environmental signals have been shown to redirect auxin fluxes mediating certain developmental responses. PIN phosphorylation at different sites and by different kinases is crucial for PIN function. Here we investigate the role of PIN phosphorylation during gravitropic response. Loss- and gain-of-function mutants in PINOID and related kinases but not in D6PK kinase as well as mutations mimicking constitutive dephosphorylated or phosphorylated status of two clusters of predicted phosphorylation sites partially disrupted PIN3 phosphorylation and caused defects in gravitropic bending in roots and hypocotyls. In particular, they impacted PIN3 polarity rearrangements in response to gravity and during feed-back regulation by auxin itself. Thus PIN phosphorylation, besides regulating transport activity and apical-basal targeting, is also important for the rapid polarity switches in response to environmental and endogenous signals.","lang":"eng"}],"date_published":"2018-07-06T00:00:00Z","oa":1,"publication":"Scientific Reports","author":[{"first_name":"Peter","full_name":"Grones, Peter","id":"399876EC-F248-11E8-B48F-1D18A9856A87","last_name":"Grones"},{"last_name":"Abas","id":"3CFB3B1C-F248-11E8-B48F-1D18A9856A87","full_name":"Abas, Melinda F","first_name":"Melinda F"},{"orcid":"0000-0003-2140-7195","last_name":"Hajny","full_name":"Hajny, Jakub","id":"4800CC20-F248-11E8-B48F-1D18A9856A87","first_name":"Jakub"},{"last_name":"Jones","first_name":"Angharad","full_name":"Jones, Angharad"},{"first_name":"Sascha","full_name":"Waidmann, Sascha","last_name":"Waidmann"},{"first_name":"Jürgen","full_name":"Kleine Vehn, Jürgen","last_name":"Kleine Vehn"},{"id":"4159519E-F248-11E8-B48F-1D18A9856A87","full_name":"Friml, Jirí","first_name":"Jirí","orcid":"0000-0002-8302-7596","last_name":"Friml"}],"oa_version":"Published Version","quality_controlled":"1","publication_status":"published","citation":{"short":"P. Grones, M.F. Abas, J. Hajny, A. Jones, S. Waidmann, J. Kleine Vehn, J. Friml, Scientific Reports 8 (2018).","chicago":"Grones, Peter, Melinda F Abas, Jakub Hajny, Angharad Jones, Sascha Waidmann, Jürgen Kleine Vehn, and Jiří Friml. “PID/WAG-Mediated Phosphorylation of the Arabidopsis PIN3 Auxin Transporter Mediates Polarity Switches during Gravitropism.” <i>Scientific Reports</i>. Springer, 2018. <a href=\"https://doi.org/10.1038/s41598-018-28188-1\">https://doi.org/10.1038/s41598-018-28188-1</a>.","ama":"Grones P, Abas MF, Hajny J, et al. PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism. <i>Scientific Reports</i>. 2018;8(1). doi:<a href=\"https://doi.org/10.1038/s41598-018-28188-1\">10.1038/s41598-018-28188-1</a>","apa":"Grones, P., Abas, M. F., Hajny, J., Jones, A., Waidmann, S., Kleine Vehn, J., &#38; Friml, J. (2018). PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism. <i>Scientific Reports</i>. Springer. <a href=\"https://doi.org/10.1038/s41598-018-28188-1\">https://doi.org/10.1038/s41598-018-28188-1</a>","ieee":"P. Grones <i>et al.</i>, “PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism,” <i>Scientific Reports</i>, vol. 8, no. 1. Springer, 2018.","mla":"Grones, Peter, et al. “PID/WAG-Mediated Phosphorylation of the Arabidopsis PIN3 Auxin Transporter Mediates Polarity Switches during Gravitropism.” <i>Scientific Reports</i>, vol. 8, no. 1, 10279, Springer, 2018, doi:<a href=\"https://doi.org/10.1038/s41598-018-28188-1\">10.1038/s41598-018-28188-1</a>.","ista":"Grones P, Abas MF, Hajny J, Jones A, Waidmann S, Kleine Vehn J, Friml J. 2018. PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism. Scientific Reports. 8(1), 10279."}},{"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","ddc":["000"],"ec_funded":1,"status":"public","project":[{"grant_number":"ICT15-003","name":"Efficient Algorithms for Computer Aided Verification","_id":"25892FC0-B435-11E9-9278-68D0E5697425"},{"_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307"},{"call_identifier":"FWF","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"name":"Quantitative Game-theoretic Analysis of Blockchain Applications and Smart Contracts","_id":"266EEEC0-B435-11E9-9278-68D0E5697425"}],"intvolume":"       118","conference":{"location":"Beijing, China","end_date":"2018-09-07","name":"CONCUR: Conference on Concurrency Theory","start_date":"2018-09-04"},"date_created":"2018-12-11T11:44:27Z","date_updated":"2026-06-22T22:30:10Z","day":"01","title":"Ergodic mean-payoff games for the analysis of attacks in crypto-currencies","department":[{"_id":"KrCh"}],"tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"article_processing_charge":"No","publist_id":"7988","external_id":{"arxiv":["1806.03108"]},"doi":"10.4230/LIPIcs.CONCUR.2018.11","year":"2018","file":[{"checksum":"68a055b1aaa241cc38375083cf832a7d","creator":"dernst","file_size":1078309,"access_level":"open_access","file_name":"2018_CONCUR_Chatterjee.pdf","relation":"main_file","content_type":"application/pdf","file_id":"5696","date_updated":"2020-07-14T12:47:34Z","date_created":"2018-12-17T12:08:00Z"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file_date_updated":"2020-07-14T12:47:34Z","month":"09","has_accepted_license":"1","scopus_import":"1","_id":"66","language":[{"iso":"eng"}],"type":"conference","volume":118,"article_number":"11","publication_identifier":{"isbn":["978-3-95977-087-3"]},"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"8934"}]},"arxiv":1,"quality_controlled":"1","publication_status":"published","citation":{"mla":"Chatterjee, Krishnendu, et al. <i>Ergodic Mean-Payoff Games for the Analysis of Attacks in Crypto-Currencies</i>. Vol. 118, 11, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2018.11\">10.4230/LIPIcs.CONCUR.2018.11</a>.","ieee":"K. Chatterjee, A. K. Goharshady, R. Ibsen-Jensen, and Y. Velner, “Ergodic mean-payoff games for the analysis of attacks in crypto-currencies,” presented at the CONCUR: Conference on Concurrency Theory, Beijing, China, 2018, vol. 118.","ista":"Chatterjee K, Goharshady AK, Ibsen-Jensen R, Velner Y. 2018. Ergodic mean-payoff games for the analysis of attacks in crypto-currencies. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 118, 11.","ama":"Chatterjee K, Goharshady AK, Ibsen-Jensen R, Velner Y. Ergodic mean-payoff games for the analysis of attacks in crypto-currencies. In: Vol 118. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2018. doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2018.11\">10.4230/LIPIcs.CONCUR.2018.11</a>","chicago":"Chatterjee, Krishnendu, Amir Kafshdar Goharshady, Rasmus Ibsen-Jensen, and Yaron Velner. “Ergodic Mean-Payoff Games for the Analysis of Attacks in Crypto-Currencies,” Vol. 118. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2018.11\">https://doi.org/10.4230/LIPIcs.CONCUR.2018.11</a>.","short":"K. Chatterjee, A.K. Goharshady, R. Ibsen-Jensen, Y. Velner, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018.","apa":"Chatterjee, K., Goharshady, A. K., Ibsen-Jensen, R., &#38; Velner, Y. (2018). Ergodic mean-payoff games for the analysis of attacks in crypto-currencies (Vol. 118). Presented at the CONCUR: Conference on Concurrency Theory, Beijing, China: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2018.11\">https://doi.org/10.4230/LIPIcs.CONCUR.2018.11</a>"},"oa_version":"Published Version","date_published":"2018-09-01T00:00:00Z","oa":1,"alternative_title":["LIPIcs"],"author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee"},{"last_name":"Goharshady","orcid":"0000-0003-1702-6584","first_name":"Amir","full_name":"Goharshady, Amir","id":"391365CE-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0003-4783-0389","last_name":"Ibsen-Jensen","full_name":"Ibsen-Jensen, Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","first_name":"Rasmus"},{"first_name":"Yaron","full_name":"Velner, Yaron","last_name":"Velner"}],"abstract":[{"lang":"eng","text":"Crypto-currencies are digital assets designed to work as a medium of exchange, e.g., Bitcoin, but they are susceptible to attacks (dishonest behavior of participants). A framework for the analysis of attacks in crypto-currencies requires (a) modeling of game-theoretic aspects to analyze incentives for deviation from honest behavior; (b) concurrent interactions between participants; and (c) analysis of long-term monetary gains. Traditional game-theoretic approaches for the analysis of security protocols consider either qualitative temporal properties such as safety and termination, or the very special class of one-shot (stateless) games. However, to analyze general attacks on protocols for crypto-currencies, both stateful analysis and quantitative objectives are necessary. In this work our main contributions are as follows: (a) we show how a class of concurrent mean-payo games, namely ergodic games, can model various attacks that arise naturally in crypto-currencies; (b) we present the first practical implementation of algorithms for ergodic games that scales to model realistic problems for crypto-currencies; and (c) we present experimental results showing that our framework can handle games with thousands of states and millions of transitions."}]},{"abstract":[{"text":"Smart contracts are computer programs that are executed by a network of mutually distrusting agents, without the need of an external trusted authority. Smart contracts handle and transfer assets of considerable value (in the form of crypto-currency like Bitcoin). Hence, it is crucial that their implementation is bug-free. We identify the utility (or expected payoff) of interacting with such smart contracts as the basic and canonical quantitative property for such contracts. We present a framework for such quantitative analysis of smart contracts. Such a formal framework poses new and novel research challenges in programming languages, as it requires modeling of game-theoretic aspects to analyze incentives for deviation from honest behavior and modeling utilities which are not specified as standard temporal properties such as safety and termination. While game-theoretic incentives have been analyzed in the security community, their analysis has been restricted to the very special case of stateless games. However, to analyze smart contracts, stateful analysis is required as it must account for the different program states of the protocol. Our main contributions are as follows: we present (i)~a simplified programming language for smart contracts; (ii)~an automatic translation of the programs to state-based games; (iii)~an abstraction-refinement approach to solve such games; and (iv)~experimental results on real-world-inspired smart contracts.","lang":"eng"}],"author":[{"last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"id":"391365CE-F248-11E8-B48F-1D18A9856A87","full_name":"Goharshady, Amir","first_name":"Amir","orcid":"0000-0003-1702-6584","last_name":"Goharshady"},{"last_name":"Velner","first_name":"Yaron","full_name":"Velner, Yaron"}],"oa":1,"date_published":"2018-04-01T00:00:00Z","alternative_title":["LNCS"],"oa_version":"Published Version","publication_status":"published","citation":{"ama":"Chatterjee K, Goharshady AK, Velner Y. Quantitative analysis of smart contracts. In: Vol 10801. Springer; 2018:739-767. doi:<a href=\"https://doi.org/10.1007/978-3-319-89884-1_26\">10.1007/978-3-319-89884-1_26</a>","short":"K. Chatterjee, A.K. Goharshady, Y. Velner, in:, Springer, 2018, pp. 739–767.","chicago":"Chatterjee, Krishnendu, Amir Kafshdar Goharshady, and Yaron Velner. “Quantitative Analysis of Smart Contracts,” 10801:739–67. Springer, 2018. <a href=\"https://doi.org/10.1007/978-3-319-89884-1_26\">https://doi.org/10.1007/978-3-319-89884-1_26</a>.","apa":"Chatterjee, K., Goharshady, A. K., &#38; Velner, Y. (2018). Quantitative analysis of smart contracts (Vol. 10801, pp. 739–767). Presented at the ESOP: European Symposium on Programming, Thessaloniki, Greece: Springer. <a href=\"https://doi.org/10.1007/978-3-319-89884-1_26\">https://doi.org/10.1007/978-3-319-89884-1_26</a>","mla":"Chatterjee, Krishnendu, et al. <i>Quantitative Analysis of Smart Contracts</i>. Vol. 10801, Springer, 2018, pp. 739–67, doi:<a href=\"https://doi.org/10.1007/978-3-319-89884-1_26\">10.1007/978-3-319-89884-1_26</a>.","ieee":"K. Chatterjee, A. K. Goharshady, and Y. Velner, “Quantitative analysis of smart contracts,” presented at the ESOP: European Symposium on Programming, Thessaloniki, Greece, 2018, vol. 10801, pp. 739–767.","ista":"Chatterjee K, Goharshady AK, Velner Y. 2018. Quantitative analysis of smart contracts. ESOP: European Symposium on Programming, LNCS, vol. 10801, 739–767."},"quality_controlled":"1","acknowledgement":"The research was partially supported by Vienna Science and Technology Fund (WWTF) Project ICT15-003, Austrian Science Fund (FWF) NFN Grant No S11407-N23 (RiSE/SHiNE), and ERC Starting grant (279307: Graph Games).","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"8934"}]},"volume":10801,"type":"conference","language":[{"iso":"eng"}],"_id":"311","has_accepted_license":"1","scopus_import":"1","file_date_updated":"2020-07-14T12:46:00Z","month":"04","file":[{"relation":"main_file","file_name":"2018_ESOP_Chatterjee.pdf","access_level":"open_access","content_type":"application/pdf","date_updated":"2020-07-14T12:46:00Z","date_created":"2018-12-17T15:45:49Z","file_id":"5716","creator":"dernst","checksum":"9c8a8338c571903b599b6ca93abd2cce","file_size":1394993}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","year":"2018","page":"739 - 767","doi":"10.1007/978-3-319-89884-1_26","article_processing_charge":"No","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"publist_id":"7554","title":"Quantitative analysis of smart contracts","department":[{"_id":"KrCh"}],"day":"01","conference":{"start_date":"2018-04-16","name":"ESOP: European Symposium on Programming","location":"Thessaloniki, Greece","end_date":"2018-04-19"},"date_created":"2018-12-11T11:45:45Z","date_updated":"2026-06-22T22:30:10Z","project":[{"_id":"25892FC0-B435-11E9-9278-68D0E5697425","grant_number":"ICT15-003","name":"Efficient Algorithms for Computer Aided Verification"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425"}],"intvolume":"     10801","status":"public","ec_funded":1,"publisher":"Springer","ddc":["000"]},{"abstract":[{"text":"We  present  a  secure  approach  for  maintaining  andreporting  credit  history  records  on  the  Blockchain.  Our  ap-proach  removes  third-parties  such  as  credit  reporting  agen-cies  from  the  lending  process  and  replaces  them  with  smartcontracts.  This  allows  customers  to  interact  directly  with  thelenders  or  banks  while  ensuring  the  integrity,  unmalleabilityand  privacy  of  their  credit  data.  Additionally,  each  customerhas  full  control  over  complete  or  selective  disclosure  of  hercredit records, eliminating the risk of privacy violations or databreaches. Moreover, our approach provides strong guaranteesfor the lenders as well. A lender can check both correctness andcompleteness of the credit data disclosed to her. This is the firstapproach  that  can  perform  all  credit  reporting  tasks  withouta  central  authority  or  changing  the  financial  mechanisms*.","lang":"eng"}],"oa":1,"date_published":"2018-09-01T00:00:00Z","author":[{"full_name":"Goharshady, Amir Kafshdar","id":"391365CE-F248-11E8-B48F-1D18A9856A87","first_name":"Amir Kafshdar","orcid":"0000-0003-1702-6584","last_name":"Goharshady"},{"full_name":"Behrouz, Ali","first_name":"Ali","last_name":"Behrouz"},{"last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu"}],"publication":"Proceedings of the IEEE International Conference on Blockchain","oa_version":"Submitted Version","quality_controlled":"1","publication_status":"published","citation":{"ista":"Goharshady AK, Behrouz A, Chatterjee K. 2018. Secure Credit Reporting on the Blockchain. Proceedings of the IEEE International Conference on Blockchain. IEEE International Conference on Blockchain, 1343–1348.","mla":"Goharshady, Amir Kafshdar, et al. “Secure Credit Reporting on the Blockchain.” <i>Proceedings of the IEEE International Conference on Blockchain</i>, IEEE, 2018, pp. 1343–48, doi:<a href=\"https://doi.org/10.1109/Cybermatics_2018.2018.00231\">10.1109/Cybermatics_2018.2018.00231</a>.","ieee":"A. K. Goharshady, A. Behrouz, and K. Chatterjee, “Secure Credit Reporting on the Blockchain,” in <i>Proceedings of the IEEE International Conference on Blockchain</i>, Halifax, Canada, 2018, pp. 1343–1348.","apa":"Goharshady, A. K., Behrouz, A., &#38; Chatterjee, K. (2018). Secure Credit Reporting on the Blockchain. In <i>Proceedings of the IEEE International Conference on Blockchain</i> (pp. 1343–1348). Halifax, Canada: IEEE. <a href=\"https://doi.org/10.1109/Cybermatics_2018.2018.00231\">https://doi.org/10.1109/Cybermatics_2018.2018.00231</a>","ama":"Goharshady AK, Behrouz A, Chatterjee K. Secure Credit Reporting on the Blockchain. In: <i>Proceedings of the IEEE International Conference on Blockchain</i>. IEEE; 2018:1343-1348. doi:<a href=\"https://doi.org/10.1109/Cybermatics_2018.2018.00231\">10.1109/Cybermatics_2018.2018.00231</a>","chicago":"Goharshady, Amir Kafshdar, Ali Behrouz, and Krishnendu Chatterjee. “Secure Credit Reporting on the Blockchain.” In <i>Proceedings of the IEEE International Conference on Blockchain</i>, 1343–48. IEEE, 2018. <a href=\"https://doi.org/10.1109/Cybermatics_2018.2018.00231\">https://doi.org/10.1109/Cybermatics_2018.2018.00231</a>.","short":"A.K. Goharshady, A. Behrouz, K. Chatterjee, in:, Proceedings of the IEEE International Conference on Blockchain, IEEE, 2018, pp. 1343–1348."},"arxiv":1,"license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"8934"}]},"type":"conference","language":[{"iso":"eng"}],"publication_identifier":{"isbn":["978-1-5386-7975-3 "]},"_id":"6340","scopus_import":"1","has_accepted_license":"1","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","file":[{"file_size":624338,"checksum":"b25c9bb7cf6e7e6634e692d26d41ead8","creator":"akafshda","file_id":"6341","date_created":"2019-04-18T10:36:39Z","date_updated":"2020-07-14T12:47:27Z","content_type":"application/pdf","file_name":"blockchain2018.pdf","access_level":"open_access","relation":"main_file"}],"month":"09","file_date_updated":"2020-07-14T12:47:27Z","doi":"10.1109/Cybermatics_2018.2018.00231","external_id":{"arxiv":["1805.09104"],"isi":["000481634500196"]},"page":"1343-1348","year":"2018","title":"Secure Credit Reporting on the Blockchain","department":[{"_id":"KrCh"}],"tmp":{"short":"CC BY-NC-ND (4.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)"},"article_processing_charge":"No","date_created":"2019-04-18T10:37:35Z","date_updated":"2026-06-22T22:30:10Z","conference":{"end_date":"2018-08-03","location":"Halifax, Canada","name":"IEEE International Conference on Blockchain","start_date":"2018-07-30"},"day":"01","isi":1,"status":"public","project":[{"_id":"25892FC0-B435-11E9-9278-68D0E5697425","grant_number":"ICT15-003","name":"Efficient Algorithms for Computer Aided Verification"},{"name":"Quantitative Game-theoretic Analysis of Blockchain Applications and Smart Contracts","_id":"266EEEC0-B435-11E9-9278-68D0E5697425"},{"_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307"},{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering"}],"ec_funded":1,"ddc":["000"],"publisher":"IEEE"},{"status":"public","isi":1,"project":[{"_id":"2584A770-B435-11E9-9278-68D0E5697425","name":"Modern Graph Algorithmic Techniques in Formal Verification","grant_number":"P 23499-N23","call_identifier":"FWF"},{"call_identifier":"FWF","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425"}],"intvolume":"        40","date_updated":"2026-06-22T22:30:10Z","date_created":"2019-02-14T14:31:52Z","day":"01","publisher":"Association for Computing Machinery","ec_funded":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","corr_author":"1","month":"08","scopus_import":"1","department":[{"_id":"KrCh"}],"title":"Algorithms for algebraic path properties in concurrent systems of constant treewidth components","article_processing_charge":"No","doi":"10.1145/3210257","external_id":{"arxiv":["1510.07565"],"isi":["000444694800001"]},"year":"2018","related_material":{"record":[{"relation":"earlier_version","status":"public","id":"5441"},{"relation":"earlier_version","status":"public","id":"5442"},{"id":"1437","relation":"earlier_version","status":"public"},{"id":"8934","status":"public","relation":"dissertation_contains"}]},"arxiv":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1510.07565"}],"_id":"6009","language":[{"iso":"eng"}],"type":"journal_article","volume":40,"article_number":"9","issue":"3","publication_identifier":{"issn":["0164-0925"]},"date_published":"2018-08-01T00:00:00Z","oa":1,"publication":"ACM Transactions on Programming Languages and Systems","author":[{"first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","orcid":"0000-0002-4561-241X"},{"first_name":"Rasmus","full_name":"Ibsen-Jensen, Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","last_name":"Ibsen-Jensen","orcid":"0000-0003-4783-0389"},{"orcid":"0000-0003-1702-6584","last_name":"Goharshady","full_name":"Goharshady, Amir Kafshdar","id":"391365CE-F248-11E8-B48F-1D18A9856A87","first_name":"Amir Kafshdar"},{"full_name":"Pavlogiannis, Andreas","id":"49704004-F248-11E8-B48F-1D18A9856A87","first_name":"Andreas","orcid":"0000-0002-8943-0722","last_name":"Pavlogiannis"}],"abstract":[{"text":"We study algorithmic questions wrt algebraic path properties in concurrent systems, where the transitions of the system are labeled from a complete, closed semiring. The algebraic path properties can model dataflow analysis problems, the shortest path problem, and many other natural problems that arise in program analysis. We consider that each component of the concurrent system is a graph with constant treewidth, a property satisfied by the controlflow graphs of most programs. We allow for multiple possible queries, which arise naturally in demand driven dataflow analysis. The study of multiple queries allows us to consider the tradeoff between the resource usage of the one-time preprocessing and for each individual query. The traditional approach constructs the product graph of all components and applies the best-known graph algorithm on the product. In this approach, even the answer to a single query requires the transitive closure (i.e., the results of all possible queries), which provides no room for tradeoff between preprocessing and query time.\r\nOur main contributions are algorithms that significantly improve the worst-case running time of the traditional approach, and provide various tradeoffs depending on the number of queries. For example, in a concurrent system of two components, the traditional approach requires hexic time in the worst case for answering one query as well as computing the transitive closure, whereas we show that with one-time preprocessing in almost cubic time, each subsequent query can be answered in at most linear time, and even the transitive closure can be computed in almost quartic time. Furthermore, we establish conditional optimality results showing that the worst-case running time of our algorithms cannot be improved without achieving major breakthroughs in graph algorithms (i.e., improving the worst-case bound for the shortest path problem in general graphs). Preliminary experimental results show that our algorithms perform favorably on several benchmarks.\r\n","lang":"eng"}],"quality_controlled":"1","citation":{"ama":"Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. Algorithms for algebraic path properties in concurrent systems of constant treewidth components. <i>ACM Transactions on Programming Languages and Systems</i>. 2018;40(3). doi:<a href=\"https://doi.org/10.1145/3210257\">10.1145/3210257</a>","short":"K. Chatterjee, R. Ibsen-Jensen, A.K. Goharshady, A. Pavlogiannis, ACM Transactions on Programming Languages and Systems 40 (2018).","chicago":"Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, Amir Kafshdar Goharshady, and Andreas Pavlogiannis. “Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components.” <i>ACM Transactions on Programming Languages and Systems</i>. Association for Computing Machinery, 2018. <a href=\"https://doi.org/10.1145/3210257\">https://doi.org/10.1145/3210257</a>.","apa":"Chatterjee, K., Ibsen-Jensen, R., Goharshady, A. K., &#38; Pavlogiannis, A. (2018). Algorithms for algebraic path properties in concurrent systems of constant treewidth components. <i>ACM Transactions on Programming Languages and Systems</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3210257\">https://doi.org/10.1145/3210257</a>","ieee":"K. Chatterjee, R. Ibsen-Jensen, A. K. Goharshady, and A. Pavlogiannis, “Algorithms for algebraic path properties in concurrent systems of constant treewidth components,” <i>ACM Transactions on Programming Languages and Systems</i>, vol. 40, no. 3. Association for Computing Machinery, 2018.","mla":"Chatterjee, Krishnendu, et al. “Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components.” <i>ACM Transactions on Programming Languages and Systems</i>, vol. 40, no. 3, 9, Association for Computing Machinery, 2018, doi:<a href=\"https://doi.org/10.1145/3210257\">10.1145/3210257</a>.","ista":"Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. 2018. Algorithms for algebraic path properties in concurrent systems of constant treewidth components. ACM Transactions on Programming Languages and Systems. 40(3), 9."},"publication_status":"published","oa_version":"Preprint"},{"day":"17","conference":{"end_date":"2018-07-19","location":"Stockholm, Sweden","start_date":"2018-07-13","name":"IJCAI: International Joint Conference on Artificial Intelligence"},"date_updated":"2026-06-22T22:30:10Z","date_created":"2019-02-13T13:26:27Z","project":[{"grant_number":"ICT15-003","name":"Efficient Algorithms for Computer Aided Verification","_id":"25892FC0-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425"}],"intvolume":"      2018","status":"public","isi":1,"ec_funded":1,"publisher":"IJCAI","scopus_import":"1","month":"07","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","year":"2018","page":"4700-4707","doi":"10.24963/ijcai.2018/653","external_id":{"arxiv":["1804.08984"],"isi":["000764175404118"]},"article_processing_charge":"No","title":"Computational approaches for stochastic shortest path on succinct MDPs","department":[{"_id":"KrCh"}],"arxiv":1,"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"8934"}]},"volume":2018,"publication_identifier":{"issn":["1045-0823"],"isbn":["9780999241127"]},"language":[{"iso":"eng"}],"type":"conference","_id":"5977","main_file_link":[{"url":"https://arxiv.org/abs/1804.08984","open_access":"1"}],"abstract":[{"lang":"eng","text":"We consider the stochastic shortest path (SSP)problem for succinct Markov decision processes(MDPs), where the MDP consists of a set of vari-ables, and a set of nondeterministic rules that up-date the variables. First, we show that several ex-amples from the AI literature can be modeled assuccinct MDPs.  Then we present computationalapproaches for upper and lower bounds for theSSP problem: (a) for computing upper bounds, ourmethod is polynomial-time in the implicit descrip-tion of the MDP; (b) for lower bounds, we present apolynomial-time (in the size of the implicit descrip-tion) reduction to quadratic programming. Our ap-proach is applicable even to infinite-state MDPs.Finally, we present experimental results to demon-strate the effectiveness of our approach on severalclassical examples from the AI literature."}],"publication":"Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence","author":[{"first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","orcid":"0000-0002-4561-241X"},{"id":"3AAD03D6-F248-11E8-B48F-1D18A9856A87","full_name":"Fu, Hongfei","first_name":"Hongfei","last_name":"Fu"},{"first_name":"Amir","id":"391365CE-F248-11E8-B48F-1D18A9856A87","full_name":"Goharshady, Amir","last_name":"Goharshady","orcid":"0000-0003-1702-6584"},{"last_name":"Okati","first_name":"Nastaran","full_name":"Okati, Nastaran"}],"date_published":"2018-07-17T00:00:00Z","oa":1,"oa_version":"Preprint","citation":{"ista":"Chatterjee K, Fu H, Goharshady AK, Okati N. 2018. Computational approaches for stochastic shortest path on succinct MDPs. Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence. IJCAI: International Joint Conference on Artificial Intelligence vol. 2018, 4700–4707.","ieee":"K. Chatterjee, H. Fu, A. K. Goharshady, and N. Okati, “Computational approaches for stochastic shortest path on succinct MDPs,” in <i>Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence</i>, Stockholm, Sweden, 2018, vol. 2018, pp. 4700–4707.","mla":"Chatterjee, Krishnendu, et al. “Computational Approaches for Stochastic Shortest Path on Succinct MDPs.” <i>Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence</i>, vol. 2018, IJCAI, 2018, pp. 4700–07, doi:<a href=\"https://doi.org/10.24963/ijcai.2018/653\">10.24963/ijcai.2018/653</a>.","apa":"Chatterjee, K., Fu, H., Goharshady, A. K., &#38; Okati, N. (2018). Computational approaches for stochastic shortest path on succinct MDPs. In <i>Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence</i> (Vol. 2018, pp. 4700–4707). Stockholm, Sweden: IJCAI. <a href=\"https://doi.org/10.24963/ijcai.2018/653\">https://doi.org/10.24963/ijcai.2018/653</a>","ama":"Chatterjee K, Fu H, Goharshady AK, Okati N. Computational approaches for stochastic shortest path on succinct MDPs. In: <i>Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence</i>. Vol 2018. IJCAI; 2018:4700-4707. doi:<a href=\"https://doi.org/10.24963/ijcai.2018/653\">10.24963/ijcai.2018/653</a>","chicago":"Chatterjee, Krishnendu, Hongfei Fu, Amir Kafshdar Goharshady, and Nastaran Okati. “Computational Approaches for Stochastic Shortest Path on Succinct MDPs.” In <i>Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence</i>, 2018:4700–4707. IJCAI, 2018. <a href=\"https://doi.org/10.24963/ijcai.2018/653\">https://doi.org/10.24963/ijcai.2018/653</a>.","short":"K. Chatterjee, H. Fu, A.K. Goharshady, N. Okati, in:, Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence, IJCAI, 2018, pp. 4700–4707."},"publication_status":"published","quality_controlled":"1"},{"title":"Transcriptional regulation of macrophage migration in the Drosophila melanogaster embryo ","department":[{"_id":"DaSi"}],"article_processing_charge":"No","publist_id":"8047","doi":"10.15479/AT:ISTA:th1064","year":"2018","page":"96","file":[{"file_size":102737483,"creator":"dernst","checksum":"d27b2465cb70d0c9678a0381b9b6ced1","embargo_to":"open_access","relation":"source_file","file_name":"2018_Thesis_Belyaeva_source.docx","access_level":"closed","date_updated":"2020-07-14T12:48:14Z","date_created":"2019-04-08T14:13:12Z","file_id":"6243","content_type":"application/vnd.openxmlformats-officedocument.wordprocessingml.document"},{"checksum":"a2939b61bde2de7b8ced77bbae0eaaed","creator":"dernst","file_size":88077843,"content_type":"application/pdf","file_id":"6244","date_created":"2019-04-08T14:14:08Z","date_updated":"2021-02-11T11:17:16Z","embargo":"2019-11-19","access_level":"open_access","file_name":"2018_Thesis_Belyaeva.pdf","relation":"main_file"}],"corr_author":"1","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","supervisor":[{"first_name":"Daria E","full_name":"Siekhaus, Daria E","id":"3D224B9E-F248-11E8-B48F-1D18A9856A87","last_name":"Siekhaus","orcid":"0000-0001-8323-8353"}],"file_date_updated":"2021-02-11T11:17:16Z","month":"07","has_accepted_license":"1","publisher":"Institute of Science and Technology Austria","ddc":["570"],"status":"public","date_updated":"2026-04-08T14:13:03Z","date_created":"2018-12-11T11:44:08Z","day":"01","citation":{"apa":"Belyaeva, V. (2018). <i>Transcriptional regulation of macrophage migration in the Drosophila melanogaster embryo </i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:th1064\">https://doi.org/10.15479/AT:ISTA:th1064</a>","short":"V. Belyaeva, Transcriptional Regulation of Macrophage Migration in the Drosophila Melanogaster Embryo , Institute of Science and Technology Austria, 2018.","ama":"Belyaeva V. Transcriptional regulation of macrophage migration in the Drosophila melanogaster embryo . 2018. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:th1064\">10.15479/AT:ISTA:th1064</a>","chicago":"Belyaeva, Vera. “Transcriptional Regulation of Macrophage Migration in the Drosophila Melanogaster Embryo .” Institute of Science and Technology Austria, 2018. <a href=\"https://doi.org/10.15479/AT:ISTA:th1064\">https://doi.org/10.15479/AT:ISTA:th1064</a>.","ista":"Belyaeva V. 2018. Transcriptional regulation of macrophage migration in the Drosophila melanogaster embryo . Institute of Science and Technology Austria.","mla":"Belyaeva, Vera. <i>Transcriptional Regulation of Macrophage Migration in the Drosophila Melanogaster Embryo </i>. Institute of Science and Technology Austria, 2018, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:th1064\">10.15479/AT:ISTA:th1064</a>.","ieee":"V. Belyaeva, “Transcriptional regulation of macrophage migration in the Drosophila melanogaster embryo ,” Institute of Science and Technology Austria, 2018."},"publication_status":"published","oa_version":"Published Version","date_published":"2018-07-01T00:00:00Z","oa":1,"alternative_title":["ISTA Thesis"],"author":[{"last_name":"Belyaeva","full_name":"Belyaeva, Vera","id":"47F080FE-F248-11E8-B48F-1D18A9856A87","first_name":"Vera"}],"OA_place":"publisher","abstract":[{"text":"Immune cells migrating to the sites of infection navigate through diverse tissue architectures and switch their migratory mechanisms upon demand. However, little is known about systemic regulators that could allow the acquisition of these mechanisms. We performed a genetic screen in Drosophila melanogaster to identify regulators of germband invasion by embryonic macrophages into the confined space between the ectoderm and mesoderm. We have found that bZIP circadian transcription factors (TFs) Kayak (dFos) and Vrille (dNFIL3) have opposite effects on macrophage germband infiltration: Kayak facilitated and Vrille inhibited it. These TFs are enriched in the macrophages during migration and genetically interact to control it. Kayak sets a less coordinated mode of migration of the macrophage group and increases the probability and length of Levy walks. Intriguingly, the motility of kayak mutant macrophages was also strongly affected during initial germband invasion but not along another less confined route. Inhibiting Rho1 signaling within the tail ectoderm partially rescued the Kayak mutant phenotype, strongly suggesting that migrating macrophages have to overcome a barrier imposed by the stiffness of the ectoderm. Also, Kayak appeared to be important for the maintenance of the round cell shape and the rear edge translocation of the macrophages invading the germband. Complementary to this, the cortical actin cytoskeleton of Kayak- deficient macrophages was strongly affected. RNA sequencing revealed the filamin Cheerio and tetraspanin TM4SF to be downstream of Kayak. Chromatin immunoprecipitation and immunostaining revealed that the formin Diaphanous is another downstream target of Kayak. Immunostaining revealed that the formin Diaphanous is another downstream target of Kayak. Indeed, Cheerio, TM4SF and Diaphanous are required within macrophages for germband invasion, and expression of constitutively active Diaphanous in macrophages was able to rescue the kayak mutant phenotype. Moreover, Cher and Diaphanous are also reduced in the macrophages overexpressing Vrille. We hypothesize that Kayak, through its targets, increases actin polymerization and cortical tension in macrophages and thus allows extra force generation necessary for macrophage dissemination and migration through confined stiff tissues, while Vrille counterbalances it.","lang":"eng"}],"_id":"9","type":"dissertation","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2663-337X"]},"degree_awarded":"PhD","pubrep_id":"1064"},{"title":"Relaminarization by steady modification of the streamwise velocity profile in a pipe","department":[{"_id":"BjHo"}],"tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"article_processing_charge":"Yes (via OA deal)","publist_id":"7401","doi":"10.1007/s10494-018-9896-4","external_id":{"isi":["000433113900004"]},"year":"2018","page":"919 - 942","file":[{"date_created":"2018-12-17T15:52:37Z","date_updated":"2020-07-14T12:46:25Z","file_id":"5717","content_type":"application/pdf","relation":"main_file","access_level":"open_access","file_name":"2018_FlowTurbulenceCombust_Kuehnen.pdf","file_size":2210020,"creator":"dernst","checksum":"d7c0bade150faabca150b0a9986e60ca"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","corr_author":"1","month":"01","file_date_updated":"2020-07-14T12:46:25Z","has_accepted_license":"1","scopus_import":"1","publisher":"Springer","ddc":["530"],"ec_funded":1,"status":"public","isi":1,"project":[{"_id":"25152F3A-B435-11E9-9278-68D0E5697425","name":"Decoding the complexity of turbulence at its origin","grant_number":"306589","call_identifier":"FP7"}],"intvolume":"       100","date_created":"2018-12-11T11:46:23Z","date_updated":"2026-06-22T22:30:13Z","day":"01","quality_controlled":"1","publication_status":"published","citation":{"apa":"Kühnen, J., Scarselli, D., Schaner, M., &#38; Hof, B. (2018). Relaminarization by steady modification of the streamwise velocity profile in a pipe. <i>Flow Turbulence and Combustion</i>. Springer. <a href=\"https://doi.org/10.1007/s10494-018-9896-4\">https://doi.org/10.1007/s10494-018-9896-4</a>","short":"J. Kühnen, D. Scarselli, M. Schaner, B. Hof, Flow Turbulence and Combustion 100 (2018) 919–942.","ama":"Kühnen J, Scarselli D, Schaner M, Hof B. Relaminarization by steady modification of the streamwise velocity profile in a pipe. <i>Flow Turbulence and Combustion</i>. 2018;100(4):919-942. doi:<a href=\"https://doi.org/10.1007/s10494-018-9896-4\">10.1007/s10494-018-9896-4</a>","chicago":"Kühnen, Jakob, Davide Scarselli, Markus Schaner, and Björn Hof. “Relaminarization by Steady Modification of the Streamwise Velocity Profile in a Pipe.” <i>Flow Turbulence and Combustion</i>. Springer, 2018. <a href=\"https://doi.org/10.1007/s10494-018-9896-4\">https://doi.org/10.1007/s10494-018-9896-4</a>.","ista":"Kühnen J, Scarselli D, Schaner M, Hof B. 2018. Relaminarization by steady modification of the streamwise velocity profile in a pipe. Flow Turbulence and Combustion. 100(4), 919–942.","mla":"Kühnen, Jakob, et al. “Relaminarization by Steady Modification of the Streamwise Velocity Profile in a Pipe.” <i>Flow Turbulence and Combustion</i>, vol. 100, no. 4, Springer, 2018, pp. 919–42, doi:<a href=\"https://doi.org/10.1007/s10494-018-9896-4\">10.1007/s10494-018-9896-4</a>.","ieee":"J. Kühnen, D. Scarselli, M. Schaner, and B. Hof, “Relaminarization by steady modification of the streamwise velocity profile in a pipe,” <i>Flow Turbulence and Combustion</i>, vol. 100, no. 4. Springer, pp. 919–942, 2018."},"oa_version":"Published Version","date_published":"2018-01-01T00:00:00Z","oa":1,"publication":"Flow Turbulence and Combustion","author":[{"first_name":"Jakob","id":"3A47AE32-F248-11E8-B48F-1D18A9856A87","full_name":"Kühnen, Jakob","last_name":"Kühnen","orcid":"0000-0003-4312-0179"},{"first_name":"Davide","id":"40315C30-F248-11E8-B48F-1D18A9856A87","full_name":"Scarselli, Davide","last_name":"Scarselli","orcid":"0000-0001-5227-4271"},{"last_name":"Schaner","full_name":"Schaner, Markus","id":"316CE034-F248-11E8-B48F-1D18A9856A87","first_name":"Markus"},{"last_name":"Hof","orcid":"0000-0003-2057-2754","first_name":"Björn","full_name":"Hof, Björn","id":"3A374330-F248-11E8-B48F-1D18A9856A87"}],"abstract":[{"text":"We show that a rather simple, steady modification of the streamwise velocity profile in a pipe can lead to a complete collapse of turbulence and the flow fully relaminarizes. Two different devices, a stationary obstacle (inset) and a device which injects fluid through an annular gap close to the wall, are used to control the flow. Both devices modify the streamwise velocity profile such that the flow in the center of the pipe is decelerated and the flow in the near wall region is accelerated. We present measurements with stereoscopic particle image velocimetry to investigate and capture the development of the relaminarizing flow downstream these devices and the specific circumstances responsible for relaminarization. We find total relaminarization up to Reynolds numbers of 6000, where the skin friction in the far downstream distance is reduced by a factor of 3.4 due to relaminarization. In a smooth straight pipe the flow remains completely laminar downstream of the control. Furthermore, we show that transient (temporary) relaminarization in a spatially confined region right downstream the devices occurs also at much higher Reynolds numbers, accompanied by a significant local skin friction drag reduction. The underlying physical mechanism of relaminarization is attributed to a weakening of the near-wall turbulence production cycle.","lang":"eng"}],"_id":"422","language":[{"iso":"eng"}],"type":"journal_article","volume":100,"issue":"4","related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"7258"}]}}]