Now showing items 21-40 of 897

    • FK228 Analogues Induce Fetal Hemoglobin in Human Erythroid Progenitors 

      Makala, L.; Di Maro, Salvatore; Lou, Tzu-Fang; Sivanand, S.; Ahn, Jung-Mo; Pace, B. S. (2012-03-07)
      Fetal hemoglobin (HbF) improves the clinical severity of sickle cell disease (SCD), therefore, research to identify HbF-inducing agents for treatment purposes is desirable. The focus of our study is to investigate the ...
    • Search for the Standard Model Higgs Boson in the Diphoton Decay Channel with 4.9 fb⁻¹ of pp Collision Data at √s = 7  TeV with ATLAS 

      Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdelalim, A. A.; Abdesselam, A.; Abdinov, O.; Ahsan, Mahsana; Izen, Joseph M .; Lou, Xinchou; Reeves, Kendall; Wong, Wei-Cheng; ATLAS Collaboration (American Physical Society, 2012-03-13)
      A search for the standard model Higgs boson is performed in the diphoton decay channel. The data used correspond to an integrated luminosity of 4.9 fb⁻¹ collected with the ATLAS detector at the Large Hadron Collider in ...
    • Search for the Z₁(4050)⁺ and Z₂(4250)⁺ States in B̅⁰→ χ_{c1}K⁻ π⁺ and B⁺ → χ_{c1}K_s⁰ π⁺ 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (American Physical Society, 2012-03-16)
      We search for the Z₁(4050)⁺ and Z₂(4250)⁺ states, reported by the Belle Collaboration, decaying to χ_{c1}π⁺ in the decays B̅⁰ → χ_{c1}K⁻ π⁺ and B⁺ → χ_{c1}K_S⁰ π⁺ where χ_{c1} → J/ψγ. The data were collected with the ...
    • Spatial Curvature and Cosmological Tests of General Relativity 

      Ishak-Boushaki, Mustapha; Dossett, Jason N. (American Physical Society, 2012-03-23)
      It is well-known that allowing for spatial curvature affects constraints on cosmological parameters such as the dark energy equation of state parameters. Here we study the effect of curvature on constraints on parameters ...
    • Amplitude Analysis and Measurement of the Time-Dependent CP Asymmetry of B⁰→K_S⁰K_S⁰K_S⁰ Decays 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (American Physical Society, 2012-03-27)
      We present the first results on the Dalitz-plot structure and improved measurements of the time-dependent CP-violation parameters of the process B⁰→K_S⁰K_S⁰K_S⁰ obtained using 468×10⁶ BB̄ decays collected with the BABAR ...
    • Regulation of Morphogenesis and Neural Differentiation of Human Mesenchymal Stem Cells Using Carbon Nanotube Sheets 

      Kim, Jeong Ah; Jang, Eui Yun; Kang, Tae June; Yoon, Sungjun; Ovalle-Robles, Raquel; Rhee, Won Jong; Kim, Taewoo; Baughman, Ray H.; Kim, Yong Hyup; Park, Tai Hyun (2012-04-02)
      In order to successfully utilize stem cells for therapeutic applications in regenerative medicine, efficient differentiation into a specific cell lineage and guidance of axons in a desired direction is crucial. Here, we ...
    • Growth of Structure in the Szekeres Class-II Inhomogeneous Cosmological Models and the Matter-Dominated Era 

      Ishak-Boushaki, Mustapha; Peel, Austin (2012-04-03)
      This study belongs to a series devoted to using the Szekeres inhomogeneous models in order to develop a theoretical framework where cosmological observations can be investigated with a wider range of possible interpretations. ...
    • The Transition between Stochastic and Deterministic Behavior in an Excitable Gene Circuit 

      Hilborn, Robert C.; Brookshire, Benjamin; Mattingly, Jenna; Purushotham, Anusha; Sharma, Anuraag (2012-04-11)
      We explore the connection between a stochastic simulation model and an ordinary differential equations (ODEs) model of the dynamics of an excitable gene circuit that exhibits noise-induced oscillations. Near a bifurcation ...
    • The Transition between Stochastic and Deterministic Behavior in an Excitable Gene Circuit 

      Hilborn, Robert C.; Brookshire, Benjamin; Mattingly, Jenna; Purushotham, Anusha; Sharma, Anuraag (2012-04-11)
      We explore the connection between a stochastic simulation model and an ordinary differential equations (ODEs) model of the dynamics of an excitable gene circuit that exhibits noise-induced oscillations. Near a bifurcation ...
    • Search for Lepton-Number Violating Processes in B⁺ → h⁻ l⁺ l⁺ Decays 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Palano, A.; Eigen, G.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (Amer Physical Soc, 2012-04-19)
      We have searched for the lepton-number violating processes B +→h -- +- + with h -=K -/π - and - +=e +/μ +, using a sample of 471±3 million BB̄ events collected with the BABAR detector at the PEP-II e +e - collider at the ...
    • Terahertz Surface Plasmon Polaritons on Freestanding Multi-Walled Carbon Nanotube Aerogel Sheets 

      Nguyen, T. D.; Liu, S.; Lima, Marcio Dias; Fang, Shaoli; Baughman, Ray H.; Nahata, A.; Vardeny, Z. V. (2012-05-08)
      We demonstrate that multi-walled carbon nanotubes (MWCNTs) are capable of supporting surface plasmon-polaritons (SPPs) at terahertz (THz) frequencies. To achieve this, we fabricated sub-100 μm-thick freestanding and highly ...
    • Low Power Greenhouse Gas Sensors for Unmanned Aerial Vehicles 

      Khan, Amir; Schaefer, David; Tao, Lei; Miller, David J.; Sun, Kang; Zondlo, Mark A.; Harrison, William A.; Roscoe, Bryan; Lary, David J. (2012-05-09)
      We demonstrate compact, low power, lightweight laser-based sensors for measuring trace gas species in the atmosphere designed specifically for electronic unmanned aerial vehicle (UAV) platforms. The sensors utilize ...
    • Factors Associated with Attention Deficit/Hyperactivity Disorder Among US Children: Results from a National Survey 

      Lingineni, R. K.; Biswas, Swati; Ahmad, N.; Jackson, B. E.; Bae, S.; Singh, K. P. (BioMedCentral, 2012-05-14)
      Background: The purpose of this study was to investigate the association between Attention Deficit/Hyperactivity Disorder (ADHD) and various factors using a representative sample of US children in a comprehensive manner. ...
    • DNA Looping in Topologically Constrained Domains 

      Bharadwaj, Anusha; Kesinger, Matthew R.; Shoura, Massa J.; Vetcher, Alexandre; Levene, Stephen D. (Oxford University Press., 2012-05-15)
      New techniques are needed in order to study the effects of DNA supercoiling on loop-mediated regulation. The thermodynamics of DNA looping depend periodically on the helical phasing between recognition sites. A long-term ...
    • Measurements of DNA-Loop Formation via Cre-Mediated Recombination 

      Shoura, Massa J.; Vetcher, Alexandre; Giovan, Stefan; Levene, Stephen D.; Bardai, Farah; Bharadwaj, Anusha; Kesinger, Matthew R. (2012-05-15)
      The Cre recombination system has become an important tool for genetic manipulation of higher organisms and a model for site-specific DNA-recombination mechanisms employed by the λ-Int superfamily of recombinases. We report ...
    • Search for the Decay D⁰ → γγ and Measurement of the Branching Fraction for D⁰ → π⁰π⁰ 

      Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (American Physical Society, 2012-05-18)
      We search for the rare decay of the D⁰ meson to two photons, D⁰ → γγ, and present a measurement of the branching fraction for a D⁰ meson decaying to two neutral pions, B(D⁰ → π⁰π⁰). The data sample analyzed corresponds ...
    • Observation of Spin Correlation in tt̄ Events from pp Collisions at √s = 7 TeV Using the ATLAS Detector 

      Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdelalim, A. A.; Abdesselam, A.; Abdinov, O.; Ahsan, Mahsana; Izen, Joseph M.; Lou, Xinchou; Reeves, Kendall; Wong, Wei-Cheng; ATLAS Collaboration (American Physical Society, 2012-05-24)
      A measurement of spin correlation in tt̅ production is reported using data collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 2.1 fb⁻¹. Candidate events are selected in the dilepton ...
    • Modifying the Electronic Properties of Single-Walled Carbon Nanotubes using Designed Surfactant Peptides 

      Samarajeewa, D. R.; Dieckmann, Gregg R.; Nielsen, Steven O.; Musselman, Inga H. (2012-05-25)
      The electronic properties of carbon nanotubes can be altered significantly by modifying the nanotube surface. In this study, single-walled carbon nanotubes (SWCNTs) were functionalized noncovalently using designed surfactant ...
    • Observation and Study of the Baryonic B-Meson Decays B→D^{(*)}pp̅ (π)(π) 

      Del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (American Physical Society, 2012-05-30)
      We present results for B-meson decay modes involving a charm meson, protons, and pions using 455×10⁶ BB̄ pairs recorded by the BaBar detector at the SLAC PEP-II asymmetric-energy e⁺e⁻ collider. The branching fractions ...
    • Self-Calibrating the Gravitational Shear-Intrinsic Ellipticity-Intrinsic Ellipticity Cross-Correlation 

      Troxel, Michael A.; Ishak-Boushaki, Mustapha (2012-06-01)
      We extend the 3-point intrinsic alignment self-calibration technique to the gravitational shear-intrinsic ellipticity-intrinsic ellipticity (GII) bispectrum. While significantly decreased from using cross-correlations ...