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4,043 results on '"Deng, Yuan"'

101. New Complexity Results on Coalitional Manipulation of Borda

Author

Shen, Yiheng, Tang, Pingzhong, and Deng, Yuan

Subjects
Computer Science - Computer Science and Game Theory
Abstract

The Borda voting rule is a positional scoring rule for $z$ candidates such that in each vote, the first candidate receives $z-1$ points, the second $z-2$ points and so on. The winner in the Borda rule is the candidate with highest total score. We study the manipulation problem of the Borda rule in a setting with two non-manipulators while one of the non-manipulator's vote is weighted. We demonstrate a sharp contrast on computational complexity depending on the weight of the non-manipulator: the problem is NP-hard when the weight is larger than $1$ while there exists an efficient algorithm to find a manipulation when the weight is at most $1$., Comment: 15 pages, 2 figures, 1 table

Published
2020

103. Author Correction: Dense sampling of bird diversity increases power of comparative genomics

Author

Feng, Shaohong, Stiller, Josefin, Deng, Yuan, Armstrong, Joel, Fang, Qi, Reeve, Andrew Hart, Xie, Duo, Chen, Guangji, Guo, Chunxue, Faircloth, Brant C, Petersen, Bent, Wang, Zongji, Zhou, Qi, Diekhans, Mark, Chen, Wanjun, Andreu-Sánchez, Sergio, Margaryan, Ashot, Howard, Jason Travis, Parent, Carole, Pacheco, George, Sinding, Mikkel-Holger S, Puetz, Lara, Cavill, Emily, Ribeiro, Ângela M, Eckhart, Leopold, Fjeldså, Jon, Hosner, Peter A, Brumfield, Robb T, Christidis, Les, Bertelsen, Mads F, Sicheritz-Ponten, Thomas, Tietze, Dieter Thomas, Robertson, Bruce C, Song, Gang, Borgia, Gerald, Claramunt, Santiago, Lovette, Irby J, Cowen, Saul J, Njoroge, Peter, Dumbacher, John Philip, Ryder, Oliver A, Fuchs, Jérôme, Bunce, Michael, Burt, David W, Cracraft, Joel, Meng, Guanliang, Hackett, Shannon J, Ryan, Peter G, Jønsson, Knud Andreas, Jamieson, Ian G, da Fonseca, Rute R, Braun, Edward L, Houde, Peter, Mirarab, Siavash, Suh, Alexander, Hansson, Bengt, Ponnikas, Suvi, Sigeman, Hanna, Stervander, Martin, Frandsen, Paul B, van der Zwan, Henriette, van der Sluis, Rencia, Visser, Carina, Balakrishnan, Christopher N, Clark, Andrew G, Fitzpatrick, John W, Bowman, Reed, Chen, Nancy, Cloutier, Alison, Sackton, Timothy B, Edwards, Scott V, Foote, Dustin J, Shakya, Subir B, Sheldon, Frederick H, Vignal, Alain, Soares, André ER, Shapiro, Beth, González-Solís, Jacob, Ferrer-Obiol, Joan, Rozas, Julio, Riutort, Marta, Tigano, Anna, Friesen, Vicki, Dalén, Love, Urrutia, Araxi O, Székely, Tamás, Liu, Yang, Campana, Michael G, Corvelo, André, Fleischer, Robert C, Rutherford, Kim M, Gemmell, Neil J, Dussex, Nicolas, Mouritsen, Henrik, Thiele, Nadine, Delmore, Kira, Liedvogel, Miriam, Franke, Andre, Hoeppner, Marc P, and Krone, Oliver

Subjects
General Science & Technology
Abstract

In Supplementary Table 1 of this Article, 23 samples (B10K-DU-029-32, B10K-DU-029-33, B10K-DU-029-36 to B10K-DU-029-44, B10K-DU- 029-46, B10K-DU-029-47, B10K-DU-029-49 to B10K-DU-029-53, B10K-DU- 029-75 to B10K-DU-029-77, B10K-DU-029-80, and B10K-DU-030-03; styled in boldface in the revised table) were assigned to the incorrect institution. Supplementary Table 1 has been amended to reflect the correct source institution for these samples, and associated data (tissue, museum ID/source specimen ID, site, state/province, latitude, longitude, date collected and sex) have been updated accordingly. The original table is provided as Supplementary Information to this Amendment, and the original Article has been corrected online.

Published
2021

109. Spectro-polarimetric Observations at the NVST: I. Instrumental Polarization Calibration and Primary Measurements

Author

Hou, Jun-Feng, Xu, Zhi, Yuan, Shu, Chen, Yu-Chao, Peng, Jian-Guo, Wang, Dong-Guang, Xu, Jun, Deng, Yuan-Yong, Jin, Zhen-Yu, Ji, Kai-Fan, and Liu, Zhong

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

This paper is devoted to the primary spectro-polarimetric observation performed at the New Vacuum Solar Telescope of China since 2017, and our aim is to precisely evaluate the real polarimetric accuracy and sensitivity of this polarimetry by using full Stokes spectro-polarimetric observations of the photospheric line Fe I 532.4 nm. In the work, we briefly describe the salient characteristic of the NVST as a polarimeter in technology and then characterize its instrumental polarization based on the operation in 2017 and 2019. It is verified that the calibration method making use of the instrumental polarization calibration unit (ICU) is stable and credible. The calibration accuracy can reach up to 3$\times 10^{-3}$ . Based on the scientific observation of the NOAA 12645 on April 5th, 2017, we estimate that the residual cross-talk from Stokes $I$ to Stokes $Q$, $U$ and $V$, after the instrumental polarization calibration, is about 4$\times10^{-3}$ on average, which is consistent with the calibration accuracy and close to the photon noise. The polarimetric sensitivity (i.e., the detection limit) for polarized light is of the order of $10^{-3}$ with an integration time over 20 seconds. Slow modulation rate is indeed an issue for the present system. The present NVST polarimeter is expected to be integrated with an high-order adaptive optics system and a field scanner to realize 2D magnetic field vector measurements in the following instrumentation update., Comment: 17pages, 9 figures,accepted by Research in Astronomy and Astrophysics

Published
2019
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110. Strategizing against No-regret Learners

Author

Deng, Yuan, Schneider, Jon, and Sivan, Balusubramanian

Subjects
Computer Science - Computer Science and Game Theory, Computer Science - Machine Learning
Abstract

How should a player who repeatedly plays a game against a no-regret learner strategize to maximize his utility? We study this question and show that under some mild assumptions, the player can always guarantee himself a utility of at least what he would get in a Stackelberg equilibrium of the game. When the no-regret learner has only two actions, we show that the player cannot get any higher utility than the Stackelberg equilibrium utility. But when the no-regret learner has more than two actions and plays a mean-based no-regret strategy, we show that the player can get strictly higher than the Stackelberg equilibrium utility. We provide a characterization of the optimal game-play for the player against a mean-based no-regret learner as a solution to a control problem. When the no-regret learner's strategy also guarantees him a no-swap regret, we show that the player cannot get anything higher than a Stackelberg equilibrium utility., Comment: 11 pages. NeurIPS 2019

Published
2019

116. Dense sampling of bird diversity increases power of comparative genomics

Author

Feng, Shaohong, Stiller, Josefin, Deng, Yuan, Armstrong, Joel, Fang, Qi, Reeve, Andrew Hart, Xie, Duo, Chen, Guangji, Guo, Chunxue, Faircloth, Brant C, Petersen, Bent, Wang, Zongji, Zhou, Qi, Diekhans, Mark, Chen, Wanjun, Andreu-Sánchez, Sergio, Margaryan, Ashot, Howard, Jason Travis, Parent, Carole, Pacheco, George, Sinding, Mikkel-Holger S, Puetz, Lara, Cavill, Emily, Ribeiro, Ângela M, Eckhart, Leopold, Fjeldså, Jon, Hosner, Peter A, Brumfield, Robb T, Christidis, Les, Bertelsen, Mads F, Sicheritz-Ponten, Thomas, Tietze, Dieter Thomas, Robertson, Bruce C, Song, Gang, Borgia, Gerald, Claramunt, Santiago, Lovette, Irby J, Cowen, Saul J, Njoroge, Peter, Dumbacher, John Philip, Ryder, Oliver A, Fuchs, Jérôme, Bunce, Michael, Burt, David W, Cracraft, Joel, Meng, Guanliang, Hackett, Shannon J, Ryan, Peter G, Jønsson, Knud Andreas, Jamieson, Ian G, da Fonseca, Rute R, Braun, Edward L, Houde, Peter, Mirarab, Siavash, Suh, Alexander, Hansson, Bengt, Ponnikas, Suvi, Sigeman, Hanna, Stervander, Martin, Frandsen, Paul B, van der Zwan, Henriette, van der Sluis, Rencia, Visser, Carina, Balakrishnan, Christopher N, Clark, Andrew G, Fitzpatrick, John W, Bowman, Reed, Chen, Nancy, Cloutier, Alison, Sackton, Timothy B, Edwards, Scott V, Foote, Dustin J, Shakya, Subir B, Sheldon, Frederick H, Vignal, Alain, Soares, André ER, Shapiro, Beth, González-Solís, Jacob, Ferrer-Obiol, Joan, Rozas, Julio, Riutort, Marta, Tigano, Anna, Friesen, Vicki, Dalén, Love, Urrutia, Araxi O, Székely, Tamás, Liu, Yang, Campana, Michael G, Corvelo, André, Fleischer, Robert C, Rutherford, Kim M, Gemmell, Neil J, Dussex, Nicolas, Mouritsen, Henrik, Thiele, Nadine, Delmore, Kira, Liedvogel, Miriam, Franke, Andre, Hoeppner, Marc P, and Krone, Oliver

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Evolutionary Biology, Genetics, Human Genome, Biotechnology, Generic health relevance, Life on Land, Animals, Birds, Chickens, Conservation of Natural Resources, Datasets as Topic, Finches, Genome, Genomics, Humans, Phylogeny, Selection, Genetic, Synteny, General Science & Technology
Abstract

Whole-genome sequencing projects are increasingly populating the tree of life and characterizing biodiversity1-4. Sparse taxon sampling has previously been proposed to confound phylogenetic inference5, and captures only a fraction of the genomic diversity. Here we report a substantial step towards the dense representation of avian phylogenetic and molecular diversity, by analysing 363 genomes from 92.4% of bird families-including 267 newly sequenced genomes produced for phase II of the Bird 10,000 Genomes (B10K) Project. We use this comparative genome dataset in combination with a pipeline that leverages a reference-free whole-genome alignment to identify orthologous regions in greater numbers than has previously been possible and to recognize genomic novelties in particular bird lineages. The densely sampled alignment provides a single-base-pair map of selection, has more than doubled the fraction of bases that are confidently predicted to be under conservation and reveals extensive patterns of weak selection in predominantly non-coding DNA. Our results demonstrate that increasing the diversity of genomes used in comparative studies can reveal more shared and lineage-specific variation, and improve the investigation of genomic characteristics. We anticipate that this genomic resource will offer new perspectives on evolutionary processes in cross-species comparative analyses and assist in efforts to conserve species.

Published
2020

117. Atomistic simulation of thermoelectric properties in cove-edged graphene nanoribbons.

Author

Xie, Zhong-Xiang, Chen, Xue-Kun, Yu, Xia, Deng, Yuan-Xiang, Zhang, Yong, Zhou, Wu-Xing, and Jia, Pin-Zhen

Subjects
NANORIBBONS, GREEN'S functions, GRAPHENE, SEEBECK coefficient, PHONONS
Abstract

We present an atomistic simulation of thermoelectric properties in cove-edged graphene nanoribbons (CGNRs) via the nonequilibrium Green's function. Different from gapless zigzag graphene nanoribbons (ZGNRs), CGNRs exhibit a noticeable bandgap. Such a bandgap can be modulated by varying three structural parameters (namely, the width N, the distance between adjacent coves m, as well as the shortest offset n) of CGNRs, which can give rise to the transition from semiconducting to semi-metallic. Due to the less dispersive phonon bands and the decrease in the number of phonon channels of CGNRs, they are found to have the lower phonon thermal conductance than ZGNRs. Modulation of CGNRs can produce over tenfold improvement of the maximum of ZT compared to ZGNRs. This improvement is due to the promotion of the Seebeck coefficient together with the degradation of the phonon thermal conductance of CGNRs compared to ZGNRs. [ABSTRACT FROM AUTHOR]

Published
2024
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127. Crystal structure of bis(2,5,5,7-tetramethyl-1,4-diazepane-1,4-diium) diaqua-bis(1,2-diaminopropane)copper(II) bis(μ6-oxido)tetrakis(μ3-oxido)-tetradecakis(μ2-oxido)-octaoxido-decavanadium(V) – water (1/4), C24H76CuN8V10O34

Author

Deng Yuan-Huan and Wang Qiong

Subjects
2238091, Physics, QC1-999, Crystallography, QD901-999
Abstract

C24H76CuN8V10O34, monoclinic, P21/n (no. 14), a = 22.416(4) Å, b = 11.7003(18) Å, c = 20.079(3) Å, β = 95.594(7)°, V = 5241.2(14) Å3, Z = 4, Rgt(F) = 0.0243, wRref(F2) = 0.1110, T = 296(2) K.

Published
2023
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132. Complete Mitochondrial Genome of Contracaecum sp. (Nematoda: Ascarididae) from night herons in China

Author

Deng Yuan-Ping, Li Rong, Wang Hui-Mei, Liu Guo-Hua, and Tu Ya

Subjects
at content, contracaecum, contracaecum sp, mitochondrial genome, mitogenome, Biology (General), QH301-705.5
Abstract

Contracaecum species are zooparasitic anisakid nematodes and occur in gastrointestinal tracts of vertebrate/invertebrate animals, including humans, causing gastrointestinal pain, diarrhea, and increasingly severe vomiting. Although the complete mitochondrial (mt) genome (mitogenome) of Contracaecum sp. isolated from night herons in Beijing has been reported, the detailed information about this mt sequence is still puzzling. In the present study, we described the detailed characteristics across the complete mt DNA of Contracaecum sp., which includes 36 genes consisting of 12 protein genes, 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs), and 2 noncoding regions (NCRs), and all genes have the same orientation of transcription. The AT content in the complete mitogenome of Contracaecum sp. was 72.2%, and it was the least value (66.7%) in the cox1 gene but was the highest rate (84.1%) in NCRs. The highest nucleotide diversity (Pi) among the genus Contracaecum was nad4 (0.190) and the least was cox1 (0.125), which indicates that nad4 might have the potential ability as useful markers to detect cryptic species in the genus Contracaecum or subspecies. Based on the maximum likelihood (ML) and Bayesian inference (BI) computational algorithms within subfamilies Ascaridoidea and Heterakoidea, the results supported that Contracaecum sp. was a new species and the family Ascaridiidae was paraphyletic. The complete mitogenome sequence of Contracaecum sp. supported a clear recognition of Contracaecum species and provided the potential existence of cryptic species in the genus Contracaecum. Our findings would better contribute to the surveillance, molecular epidemiology, and control of Contracaecum.

Published
2022
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149. Research progress of correlation between thyroid cancer and diabetes mellitus

Author

FU Jing-lan, DENG Yuan-yuan, ZHANG Ying, ZHANG Xin-xu, CHEN Shi-jing, LIU Hui-xia

Subjects
thyroid cancer, diabetes mellitus, hypoglycemic drugs, Medicine
Abstract

Thyroid cancer (TC) is the most common malignant tumor of the endocrine system. Diabetes mellitus (DM) is a chronic metabolic disease caused by pancreatic β-cell dysfunction or insulin resistance. In recent years, with the increased morbidity of TC and DM , many studies have shown potential relationship between the occurrence and development of these two diseases.

Published
2022
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150. Comparison of laparoscopic single-site surgery and traditional laparoscopic surgery for endometrial cancer

Author

DENG Yuan, DENG Li, YAO Yuanyang, TANG Shuai, and TAN Wenwei

Subjects
endometrial cancer, laparoscopic single-site surgery, traditional laparoscopic surgery, staging surgery, Medicine (General), R5-920
Abstract

Objective To compare the perioperative outcomes of laparoscopic single-site surgery (LESS) versus traditional laparoscopic surgery (TLS) in the staging surgery of endometrial cancer, and to verify its safety, feasibility and effectiveness. Methods A total of 535 patients diagnosed with endometrial cancer and undergoing laparoscopic total staging surgery from August 2018 to August 2020 in our department were retrospectively recruited in this study. Among them, 26 patients underwent LESS, and 509 received TLS.A 1∶2 propensity score matching was performed to minimize the bias due to the imbalanced baseline features between the 2 groups. Finally, 26 cases in LESS group and 52 cases in TLS group were obtained. The operation time, volume of intraoperative blood loss, number of lymph nodes removed, time of postoperative exhaust, time of postoperative indwelling drainage, postoperative hospital stay, pain score of 24-hour after surgery and satisfactory with cosmetic results were analyzed and compared between the 2 groups. Results The operations in both groups were successfully completed without conversion to laparotomy. There were no statistical differences in the volume of intraoperative blood loss, number of lymph nodes removed, time of postoperative exhaust, time of postoperative indwelling drainage, and postoperative hospital stay between the 2 groups. Meanwhile, the LESS group has significantly longer operation time (197.3±55.7 vs 164.7±62.7 min), a lower pain score of 24-hour after surgery and a more satisfactory postoperative cosmetic effect (5.73±0.53 vs 5.17±0.71) when compared with the TLS group (P < 0.05). Conclusion Compared with TLS, LESS is safe and feasible for endometrial cancer, with advantages of less pain and good cosmetic effectiveness.

Published
2022
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