Recent Submissions

  • Coupled model biases breed spurious low-frequency variability in the tropical Pacific Ocean 

    Samanta, Dhrubajyoti; Karnauskas, Kristopher B.; Goodkin, Nathalie F.; Coats, Sloan; Smerdon, Jason E.; Zhang, Lei (2018)
    Coupled general circulation model (GCM) biases in the tropical Pacific are substantial, including a westward extended cold sea surface temperature (SST) bias linked to El Niño–Southern Oscillation (ENSO). Investigation of ...
  • Interferenceless polarization splitting through nanoscale van der Waals heterostructures 

    Shah, Shahnawaz; Lin, Xiao; Shen, Lian; Renuka, Maturi; Zhang, Baile; Chen, Hongsheng (2018)
    The ability to control the polarization of light at the extreme nanoscale has long been a major scientific and technological goal for photonics. Here we predict the phenomenon of polarization splitting through van der Waals ...
  • Khoisan hunter-gatherers have been the largest population throughout most of modern-human demographic history 

    Kim, Hie Lim; Ratan, Aakrosh; Perry, George H.; Montenegro, Alvaro; Miller, Webb; Schuster, Stephan C. (2014)
    The Khoisan people from Southern Africa maintained ancient lifestyles as hunter-gatherers or pastoralists up to modern times, though little else is known about their early history. Here we infer early demographic histories ...
  • Molecular mechanism of the Escherichia coli AhpC in the function of a chaperone under heat-shock conditions 

    Kamariah, Neelagandan; Eisenhaber, Birgit; Eisenhaber, Frank; Grüber, Gerhard (2018)
    Peroxiredoxins (Prxs) are ubiquitous antioxidants utilizing a reactive cysteine for peroxide reduction and acting as a molecular chaperone under various stress conditions. Besides other stimulating factors, oxidative- and ...
  • Structures of Mycobacterium smegmatis 70S ribosomes in complex with HPF, tmRNA, and P-tRNA 

    Mishra, Satabdi; Ahmed, Tofayel; Tyagi, Anu; Shi, Jian; Bhushan, Shashi (2018)
    Ribosomes are the dynamic protein synthesis machineries of the cell. They may exist in different functional states in the cell. Therefore, it is essential to have structural information on these different functional states ...
  • Phase locking and quantum statistics in a parametrically driven nonlinear resonator 

    Hovsepyan, G. H.; Shahinyan, A. R.; Chew, Lock Yue; Kryuchkyan, G. Yu. (2016)
    We discuss phase-locking phenomenon at low-level of quanta and quantum statistics for parametrically driven nonlinear Kerr resonator (PDNR). Oscillatory mode of PDNR is created in the process of a degenerate down-conversion ...
  • Time-consistent mean-variance portfolio selection with only risky assets 

    Pun, Chi Seng (2018)
    Time consistency and optimal diversification criteria are popular in the dynamic portfolio construction in practice. This paper is devoted to the exact analytical solution of the time-consistent mean-variance portfolio ...
  • Isolation of a cyclic (alkyl)(amino)germylene 

    Wang, Liliang; Lim, Yi Shan; Li, Yongxin; Ganguly, Rakesh; Kinjo, Rei (2016)
    A 1,4-addition of a dichlorogermylene dioxane complex with α,β-unsaturated imine 1 gave a dichlorogermane derivative 2 bearing a GeC3N five-membered ring skeleton. By reducing 2 with KC8, cyclic (alkyl)(amino)germylene 3 ...
  • Characterization of the regulation of CD46 RNA alternative splicing 

    Tang, Sze Jing; Luo, Shufang; Ho, Jessie Jia Xin; Ly, Phuong Thao; Goh, Eling; Roca, Xavier (2016)
    Here we present a detailed analysis of the alternative splicing regulation of human CD46, which generates different isoforms with distinct functions. CD46 is a ubiquitous membrane protein that protects host cells from ...
  • A cyclic di-GMP-binding adaptor protein interacts with histidine kinase to regulate two-component signaling 

    Xu, Linghui; Venkataramani, Prabhadevi; Ding, Yichen; Liu, Yang; Deng, Yinyue; Yong, Grace Lisi; Xin, Lingyi; Ye, Ruijuan; Zhang, Lianhui; Yang, Liang; Liang, Zhao-Xun (2016)
    The bacterial messenger cyclic di-GMP (c-di-GMP) binds to a diverse range of effectors to exert its biological effect. Despite the fact that free-standing PilZ proteins are by far the most prevalent c-di-GMP effectors known ...
  • Divergent ring-opening coupling between cyclopropanols and alkynes under cobalt catalysis 

    Yang, Junfeng; Shen, Yixiao; Lim, Yang Jie; Yoshikai, Naohiko (2018)
    Cobalt–diphosphine catalysts promote ring-opening coupling reactions between cyclopropanols and unactivated internal alkynes, affording either β-alkenyl ketones or multisubstituted cyclopentenol derivatives in good yields ...
  • On low-risk heavy hitters and sparse recovery schemes 

    Li, Yi; Nakos, Vasileios; Woodruff, David P. (2018)
    We study the heavy hitters and related sparse recovery problems in the low failure probability regime. This regime is not well-understood, and the main previous work on this is by Gilbert et al. (ICALP'13). We recognize ...
  • Lossless dimension expanders via linearized polynomials and subspace designs 

    Guruswami, Venkatesan; Resch, Nicolas; Xing, Chaoping (2018)
    For a vector space F^n over a field F, an (eta,beta)-dimension expander of degree d is a collection of d linear maps Gamma_j : F^n -> F^n such that for every subspace U of F^n of dimension at most eta n, the image of U ...
  • Linear sketching over F2 

    Kannan, Sampath; Mossel, Elchanan; Sanyal, Swagato; Yaroslavtsev, Grigory (2018)
    We initiate a systematic study of linear sketching over F_2. For a given Boolean function treated as f : F_2^n -> F_2 a randomized F_2-sketch is a distribution M over d x n matrices with elements over F_2 such that Mx ...
  • The complexity of quantum disjointness 

    Klauck, Hartmut (2017)
    We introduce the communication problem QNDISJ, short for Quantum (Unique) Non-Disjointness, and study its complexity under different modes of communication complexity. The main motivation for the problem is that it is a ...
  • How long can optimal locally repairable codes be? 

    Guruswami, Venkatesan; Xing, Chaoping; Yuan, Chen (2018)
    A locally repairable code (LRC) with locality r allows for the recovery of any erased codeword symbol using only r other codeword symbols. A Singleton-type bound dictates the best possible trade-off between the dimension ...
  • Fidelity of quantum strategies with applications to cryptography 

    Gutoski, Gus; Rosmanis, Ansis; Sikora, Jamie (2018)
    We introduce a definition of the fidelity function for multi-round quantum strategies, which we call the strategy fidelity, that is a generalization of the fidelity function for quantum states. We provide many interesting ...
  • A composition theorem for randomized query complexity 

    Anshu, Anurag; Gavinsky, Dmitry; Jain, Rahul; Kundu, Srijita; Lee, Troy; Mukhopadhyay, Priyanka; Santha, Miklos; Sanyal, Swagato (2018)
    Let the randomized query complexity of a relation for error probability epsilon be denoted by R_epsilon(). We prove that for any relation f contained in {0,1}^n times R and Boolean function g:{0,1}^m -> {0,1}, R_{1/3}(f o ...
  • Silane-catalysed fast growth of large single-crystalline graphene on hexagonal boron nitride 

    Tang, Shujie; Wang, Haomin; Wang, Hui Shan; Sun, Qiujuan; Zhang, Xiuyun; Cong, Chunxiao; Xie, Hong; Liu, Xiaoyu; Zhou, Xiaohao; Huang, Fuqiang; Chen, Xiaoshuang; Yu, Ting; Ding, Feng; Xie, Xiaoming; Jiang, Mianheng (2015)
    The direct growth of high-quality, large single-crystalline domains of graphene on a dielectric substrate is of vital importance for applications in electronics and optoelectronics. Traditionally, graphene domains grown ...
  • Quantum recommendation systems 

    Kerenidis, Iordanis; Prakash, Anupam (2017)
    A recommendation system uses the past purchases or ratings of n products by a group of m users, in order to provide personalized recommendations to individual users. The information is modeled as an m \times n preference ...

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