Now showing items 21-40 of 12714

    • Isotopic equilibria in aqueous clusters at low temperatures: Insights from the MB-pol many-body potential 

      Videla, Pablo E.; Rossky, Peter J.; Laria, Daniel (2018)
      By combining path-integrals molecular dynamics simulations with the accurate MB-pol potential energy surface, we investigate the role of alternative potential models on isotopic fractionation ratios between H and D atoms ...
    • Development of a universal, tunable, miniature fluorescence microscope for use at the point of care 

      Wong, Cynthia; Pawlowski, Michal E.; Forcucci, Alessandra; Majors, Catherine E.; Richards-Kortum, Rebecca; Tkaczyk, Tomasz S. (2018)
      Fluorescence microscopy can be a powerful tool for cell-based diagnostic assays; however, imaging can be time consuming and labor intensive to perform. Tunable systems give the ability to electronically focus at user ...
    • Analytic ground state wave functions of mean-fieldᅠpx+ipy superconductors with vortices and boundaries 

      Wang, Zhiyuan; Hazzard, Kaden R.A. (2018)
      We study Read and Green's mean-field model of the spinless px+ipy superconductor [N. Read and D. Green, Phys. Rev. B 61, 10267 (2000)] at a special set of parameters where we find the analytic expressions for the topologically ...
    • Theory of excitation of Rydberg polarons in an atomic quantum gas 

      Schmidt, R.; Whalen, J.D.; Ding, R.; Camargo, F.; Woehl, G. Jr.; Yoshida, S.; Burgdörfer, J.; Dunning, F.B.; Demler, E.; Sadeghpour, H.R.; Killian, T.C. (2018)
      We present a quantum many-body description of the excitation spectrum of Rydberg polarons in a Bose gas. The many-body Hamiltonian is solved with a functional determinant approach, and we extend this technique to describe ...
    • Unconventional and conventional quantum criticalities in CeRh0.58Ir0.42In5 

      Luo, Yongkang; Lu, Xin; Dioguardi, Adam P.; Rosa, Priscila S.F.; Bauer, Eric D.; Si, Qimiao; Thompson, Joe D. (2018)
      An appropriate description of the state of matter that appears as a second order phase transition is tuned toward zero temperature, viz. quantum-critical point (QCP), poses fundamental and still not fully answered questions. ...
    • Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications 

      Vavra, Eric D.; Zeng, Yongchao; Xiao, Siyang; Hirasaki, George J.; Biswal, Sibani L. (2018)
      Microfluidic devices are versatile tools for studying transport processes at a microscopic scale. A demand exists for microfluidic devices that are resistant to low molecular-weight oil components, unlike traditional ...
    • Band Jahn-Teller structural phase transition inᅠY2In 

      Svanidze, E.; Georgen, C.; Hallas, A.M.; Huang, Q.; Santiago, J.M.; Lynn, J.W.; Morosan, E. (2018)
      The number of paramagnetic materials that undergo a structural phase transition is rather small, which can perhaps explain the limited understanding of the band Jahn-Teller mechanism responsible for this effect. Here we ...
    • Elucidating the Metabolic Plasticity of Cancer: Mitochondrial Reprogramming and Hybrid Metabolic States 

      Jia, Dongya; Park, Jun Hyoung; Jung, Kwang Hwa; Levine, Herbert; Kaipparettu, Benny Abraham (2018)
      Aerobic glycolysis, also referred to as the Warburg effect, has been regarded as the dominant metabolic phenotype in cancer cells for a long time. More recently, it has been shown that mitochondria in most tumors are not ...
    • Recent advances in quartz enhanced photoacoustic sensing 

      Patimisco, Pietro; Sampaolo, Angelo; Dong, Lei; Tittel, Frank K.; Spagnolo, Vincenzo (2018)
      This review aims to discuss the latest advancements in quartz-enhanced photoacoustic spectroscopy (QEPAS) based trace-gas sensing. Starting from the QEPAS basic physical principles, the most used QEPAS configurations will ...
    • Incorporating GOES Satellite Photosynthetically Active Radiation (PAR) Retrievals to Improve Biogenic Emission Estimates in Texas 

      Zhang, Rui; White, Andrew T.; Biazar, Arastoo Pour; McNider, Richard T.; Cohan, Daniel S. (2018)
      This study examines the influence of insolation and cloud retrieval products from the Geostationary Operational Environmental Satellite (GOES) system on biogenic emission estimates and ozone simulations in Texas. Compared ...
    • Development and field validation of an environmental DNA (eDNA) assay for invasive clams of the genus Corbicula 

      Cowart, Dominique A.; Renshaw, Mark A.; Gantz, Crysta A.; Umek, John; Chandra, Sudeep; Egan, Scott P.; Lodge, David M.; Larson, Eric R. (2018)
      Early detection is imperative for successful control or eradication of invasive species, but many organisms are difficult to detect at the low abundances characteristic of recently introduced populations. Environmental DNA ...
    • Impact of hypothermia on implementation of CPAP for neonatal respiratory distress syndrome in a low-resource setting 

      Carns, Jennifer; Kawaza, Kondwani; Quinn, M.K.; Miao, Yinsen; Guerra, Rudy; Molyneux, Elizabeth; Oden, Maria; Richards-Kortum, Rebecca (2018)
      Background: Neonatal hypothermia is widely associated with increased risks of morbidity and mortality, but remains a pervasive global problem. No studies have examined the impact of hypothermia on outcomes for preterm ...
    • Bayesian inference of phylogenetic networks from bi-allelic genetic markers 

      Zhu, Jiafan; Wen, Dingqiao; Yu, Yun; Meudt, Heidi M.; Nakhleh, Luay (2018)
      Phylogenetic networks are rooted, directed, acyclic graphs that model reticulate evolutionary histories. Recently, statistical methods were devised for inferring such networks from either gene tree estimates or the sequence ...
    • Resonant Inverse Compton Scattering Spectra from Highly Magnetized Neutron Stars 

      Wadiasingh, Zorawar; Baring, Matthew G.; Gonthier, Peter L.; Harding, Alice K. (2018)
      Hard, nonthermal, persistent pulsed X-ray emission extending between 10 and ~150 keV has been observed in nearly 10 magnetars. For inner-magnetospheric models of such emission, resonant inverse Compton scattering of soft ...
    • Van Allen Probes Observations of Second Harmonic Poloidal Standing Alfvén Waves 

      Takahashi, Kazue; Oimatsu, Satoshi; Nosé, Masahito; Min, Kyungguk; Claudepierre, Seth G.; Chan, Anthony; Wygant, John; Kim, Hyomin (2018)
      Long-lasting second-harmonic poloidal standing Alfvén waves (P2 waves) were observed by the twin Van Allen Probes (Radiation Belt Storm Probes, or RBSP) spacecraft in the noon sector of the plasmasphere, when the spacecraft ...
    • Lactose repressor hinge domain independently binds DNA 

      Xu, Joseph S.; Hewitt, Madeleine N.; Gulati, Jaskeerat S.; Cruz, Matthew A.; Zhan, Hongli; Liu, Shirley; Matthews, Kathleen S. (2018)
      The short 8–10 amino acid “hinge” sequence in lactose repressor (LacI), present in other LacI/GalR family members, links DNA and inducer‐binding domains. Structural studies of full‐length or truncated LacI‐operator DNA ...
    • Synthetic dimensions in ultracold polar molecules 

      Sundar, Bhuvanesh; Gadway, Bryce; Hazzard, Kaden R.A. (2018)
      Synthetic dimensions alter one of the most fundamental properties in nature, the dimension of space. They allow, for example, a real three-dimensional system to act as effectively four-dimensional. Driven by such possibilities, ...
    • Scaling of Relativistic Shear Flows with the Bulk Lorentz Factor 

      Liang, Edison; Fu, Wen; Böttcher, Markus; Roustazadeh, Parisa (2018)
      We compare Particle-in-cell simulation results of relativistic electron–ion shear flows with different bulk Lorentz factors, and discuss their implications for spine-sheath models of blazar versus gamma-ray burst (GRB) ...
    • Direct observation of spin excitation anisotropy in the paramagnetic orthorhombic state of BaFe2−xNixAs2 

      Man, Haoran; Zhang, Rui; Park, J.T.; Lu, Xingye; Kulda, J.; Ivanov, A.; Dai, Pengcheng (2018)
      We use transport and inelastic neutron-scattering measurements to investigate single crystals of iron pnictide BaFe2−xNixAs2(x=0,0.03), which exhibit a tetragonal-to-orthorhombic structural transition at Ts and stripe ...
    • Creation of Rydberg Polarons in a Bose Gas 

      Camargo, F.; Schmidt, R.; Whalen, J.D.; Ding, R.; Woehl, G. Jr.; Yoshida, S.; Burgdörfer, J.; Dunning, F.B.; Sadeghpour, H.R.; Demler, E.; Killian, T.C. (2018)
      We report spectroscopic observation of Rydberg polarons in an atomic Bose gas. Polarons are created by excitation of Rydberg atoms as impurities in a strontium Bose-Einstein condensate. They are distinguished from previously ...