Now showing items 381-400 of 1199

    • Habitat use and resource tracking by African Ceratogymna hornbills: implications for seed dispersal and forest conservation 

      Smith, Thomas B.; Whitney, Kenneth D. (1998)
      Conservation of tropical forests requires an understanding of the seasonal patterns of abundance and distribution of important seed dispersers. In the forests of Central Africa, three species of hornbills in the genus ...
    • Handle Addition for Doubly-Periodic Scherk Surfaces 

      Weber, Matthias; Wolf, Michael (2012)
      We prove the existence of a family of embedded doubly periodic minimal surfaces of (quotient) genus g with orthogonal ends that generalizes the classical doubly periodic surface of Scherk and the genus-one Scherk surface ...
    • Heavy-fermion quantum criticality and destruction of the Kondo effect in a nickelᅠoxypnictide 

      Luo, Yongkang; Pourovskii, Leonid; Rowley, S.E.; Li, Yuke; Feng, Chunmu; Georges, Antoine; Dai, Jianhui; Cao, Guanghan; Xu, Zhuメan; Si, Qimiao; Ong, N.P. (2014)
      A quantum critical point arises at a continuous transformation between distinct phases of matter at zero temperature. Studies in antiferromagnetic heavy-fermion materials have revealed that quantum criticality has several ...
    • Helical Quantum Edge Gears in 2D Topological Insulators 

      Chou, Yang-Zhi; Levchenko, Alex; Foster, Matthew S. (2015)
      We show that two-terminal transport can measure the Luttinger liquid (LL) parameter K, in helical LLs at the edges of two-dimensional topological insulators (TIs) with Rashba spin-orbit coupling. We consider a Coulomb drag ...
    • Hemichordate genomes and deuterostome origins 

      Simakov, Oleg; Kawashima, Takeshi; Marlétaz, Ferdinand; Jenkins, Jerry; Koyanagi, Ryo; Mitros, Therese; Hisata, Kanako; Bredeson, Jessen; Shoguchi, Eiichi; Gyoja, Fuki; Yue, Jia-Xing; Chen, Yi-Chih; Freeman, Robert M.; Sasaki, Akane; Hikosaka-Katayama, Tomoe; Sato, Atsuko; Fujie, Manabu; Baughman, Kenneth W.; Levine, Judith; Gonzalez, Paul; Cameron, Christopher; Fritzenwanker, Jens H.; Pani, Ariel M.; Goto, Hiroki; Kanda, Miyuki; Arakaki, Nana; Yamasaki, Shinichi; Qu, Jiaxin; Cree, Andrew; Ding, Yan; Dinh, Huyen H.; Dugan, Shannon; Holder, Michael; Jhangiani, Shalini N.; Kovar, Christie L.; Lee, Sandra L.; Lewis, Lora R.; Morton, Donna; Nazareth, Lynne V.; Okwuonu, Geoffrey; Santibanez, Jireh; Chen, Rui; Richards, Stephen; Muzny, Donna M.; Gillis, Andrew; Peshkin, Leonid; Wu, Michael; Humphreys, Tom; Su, Yi-Hsien; Putnam, Nicholas H.; Schmutz, Jeremy; Fujiyama, Asao; Yu, Jr-Kai; Tagawa, Kunifumi; Worley, Kim C.; Gibbs, Richard A.; Kirschner, Marc W.; Lowe, Christopher J.; Satoh, Noriyuki; Rokhsar, Daniel S.; Gerhart, John (2015)
      Acorn worms, also known as enteropneust (literally, ‘gut-breathing’) hemichordates, are marine invertebrates that share features with echinoderms and chordates. Together, these three phyla comprise the deuterostomes. Here ...
    • Herbivore-induced changes in plant carbon allocation: Assessment of below-ground C fluxes using carbon-14 

      Crossley, D.A. Jr; Cheng, Weixin; Holland, J. Nathaniel (1996-03)
      Effects of above-ground herbivory on shortterm plant carbon allocation were studied using maize (Zea mays) and a generalist lubber grasshopper (Romalea guttata). We hypothesized that above-ground herbivory stimulates ...
    • Hierarchy in gene expression is predictive of risk, progression, and outcome in adult acute myeloid leukemia 

      Tripathi, Shubham; Deem, Michael W. (2015)
      Cancer progresses with a change in the structure of the gene network in normal cells. We define a measure of organizational hierarchy in gene networks of affected cells in adult acute myeloid leukemia (AML) patients. With ...
    • Hierarchy of gene expression data is predictive of future breast cancer outcome 

      Chen, Man; Deem, Michael W. (2013)
      We calculate measures of hierarchy in gene and tissue networks of breast cancer patients. We find that the likelihood of metastasis in the future is correlated with increased values of network hierarchy for expression ...
    • High Chromaticity Aluminum Plasmonic Pixels for Active Liquid Crystal Displays 

      Olson, Jana; Manjavacas, Alejandro; Basu, Tiyash; Huang, Da; Schlather, Andrea E.; Zheng, Bob; Halas, Naomi; Nordlander, Peter; Link, Stephan (2016)
      Chromatic devices such as flat panel displays could, in principle, be substantially improved by incorporating aluminum plasmonic nanostructures instead of conventional chromophores that are susceptible to photobleaching. ...
    • High e+/e− Ratio Dense Pair Creation with 1021W.cm−2 Laser Irradiating Solid Targets 

      Liang, E.; Clarke, T.; Henderson, A.; Fu, W.; Lo, W.; Taylor, D.; Chaguine, P.; Zhou, S.; Hua, Y.; Cen, X.; Wang, X.; Kao, J.; Hasson, H.; Dyer, G.; Serratto, K.; Riley, N.; Donovan, M.; Ditmire, T. (2015)
      We report results of new pair creation experiments using ~100 Joule pulses of the Texas Petawatt Laser to irradiate solid gold and platinum targets, with intensities up to ~1.9 × 10(21) W.cm(-2) and pulse durations as short ...
    • High ionic strength narrows the population of sites participating in protein ion-exchange adsorption: A single-molecule study 

      Kisley, Lydia; Chen, Jixin; Mansur, Andrea P.; Dominguez-Medina, Sergio; Kulla, Eliona; Kang, Marci; Shuang, Bo; Kourentzi, Katerina; Poongavanam, Mohan-Vivekanandan; Dhamane, Sagar; Willson, Richard C.; Landes, Christy F. (2014)
      The retention and elution of proteins in ion-exchange chromatography is routinely controlled by adjusting the mobile phase salt concentration. It has repeatedly been observed, as judged from adsorption isotherms, that the ...
    • High Precision Fractionator for use with Density Gradient Ultracentrifugation 

      Kadria-Vili, Yara; Canning, Griffin; Bachilo, Sergei M.; Weisman, R. Bruce (2014)
      The recent application of density gradient ultracentrifugation (DGU) for structural sorting of single-walled carbon nanotube samples has created a need for highly selective extraction of closely spaced layers formed in the ...
    • High-Ampacity Power Cables of Tightly-Packed and Aligned Carbon Nanotubes 

      Wang, Xuan; Behabtu, Natnael; Young, Colin C.; Tsentalovich, Dmitri E.; Pasquali, Matteo; Kono, Junichiro (2014)
      The current-carrying capacity (CCC), or ampacity, of highly-conductive, light, and strong carbon nanotube (CNT) fibers is characterized by measuring their failure current density (FCD) and continuous current rating (CCR) ...
    • A high-throughput three-dimensional cell migration assay for toxicity screening with mobile device-based macroscopic image analysis 

      Timm, David M.; Chen, Jianbo; Sing, David; Gage, Jacob A.; Haisler, William L.; Neeley, Shane K.; Raphael, Robert M.; Dehghani, Mehdi; Rosenblatt, Kevin P.; Killian, T.C.; Tseng, Hubert; Souza, Glauco R. (2013)
      There is a growing demand for in vitro assays for toxicity screening in three-dimensional (3D) environments. In this study, 3D cell culture using magnetic levitation was used to create an assay in which cells were patterned ...
    • Higher-dimensional analogs of Chatelet surfaces 

      Varilly-Alvarado, Anthony; Viray, Bianca (2012)
      We discuss the geometry and arithmetic of higher-dimensional analogs of Chˆatelet surfaces; namely, we describe the structure of their Brauer and Picard groups and show that they can violate the Hasse principle. In addition, ...
    • An HMM-Based Comparative Genomic Framework for Detecting Introgression in Eukaryotes 

      Liu, Kevin J.; Dai, Jingxuan; Truong, Kathy; Song, Ying; Kohn, Michael H.; Nakhleh, Luay (2014)
      One outcome of interspecific hybridization and subsequent effects of evolutionary forces is introgression, which is the integration of genetic material from one species into the genome of an individual in another species. ...
    • Hodge Theory and Lagrangian Planes on Generalized Kummer Fourfolds 

      Hassett, Brendan; Tschinkel, Yuri (2013)
    • Hot embossed polyethylene through-hole chips for bead-based microfluidicdevices 

      Chou, Jie; Du, Nan; Ou, Tina; Floriano, Pierre N.; Christodoulides, Nicolaos; McDevitt, John T. (2013)
      Over the past decade, there has been a growth of interest in the translation of microfluidic systems into real-world clinical practice, especially for use in point-of-care or near patient settings. While initial fabrication ...
    • How input fluctuations reshape the dynamics of a biological switching system 

      Hu, Bo; Kessler, David A.; Rappel, Wouter-Jan; Levine, Herbert (2012)
      An important task in quantitative biology is to understand the role of stochasticity in biochemical regulation. Here, as an extension of our recent work [Phys. Rev. Lett. 107, 148101 (2011)], we study how input ...