Now showing items 1-20 of 2796

    • Atlas + X: Sampling-based Planners on Constraint Manifolds 

      Voss, Caleb; Moll, Mark; Kavraki, Lydia E. (2017-06-14)
      Sampling-based planners struggle when the valid configurations are constrained to an implicit manifold. Special planners have been proposed for this problem recently. Our new framework is decoupled from any particular ...
    • Parallel Flow-Sensitive Points-to Analysis 

      Zhao, Jisheng; Burke, Michael G.; Sarkar, Vivek (2017-02-01)
      Points-to analysis is a fundamental requirement for many program analyses, optimizations, and debugging/verification tools. However, finding an effective balance between performance, scalability and precision in points-to ...
    • Regional background O3 and NOx in the Houston–Galveston–Brazoria (TX) region: a decadal-scale perspective 

      Suciu, Loredana G.; Griffin, Robert J.; Masiello, Caroline A. (2017)
      Ozone (O3) in the lower troposphere is harmful to people and plants, particularly during summer, when photochemistry is most active and higher temperatures favor local chemistry. Local precursor emissions, such as those ...
    • Beat frequency quartz-enhanced photoacoustic spectroscopy for fast and calibration-free continuous trace-gas monitoring 

      Wu, Hongpeng; Dong, Lei; Zheng, Huadan; Yu, Yajun; Ma, Weiguang; Zhang, Lei; Yin, Wangbao; Xiao, Liantuan; Jia, Suotang; Tittel, Frank K. (2017)
      Quartz-enhanced photoacoustic spectroscopy (QEPAS) is a sensitive gas detection technique which requires frequent calibration and has a long response time. Here we report beat frequency (BF) QEPAS that can be used for ...
    • Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms, and organic aerosol 

      Ng, Nga Lee; Brown, Steven S.; Archibald, Alexander T.; Atlas, Elliot; Cohen, Ronald C.; Crowley, John N.; Day, Douglas A.; Donahue, Neil M.; Fry, Juliane L.; Fuchs, Hendrik; Griffin, Robert J.; Guzman, Marcelo I.; Herrmann, Hartmut; Hodzic, Alma; Linuma, Yoshiteru; Jimenez, José L.; Kiendler-Scharr, Astrid; Lee, Ben H.; Luecken, Deborah J.; Mao, Jingqiu; McLaren, Robert; Mutzel, Anke; Osthoff, Hans D.; Ouyang, Bin; Picquet-Varrault, Benedicte; Platt, Ulrich; Pye, Havala O.T.; Rudich, Yinon; Schwantes, Rebecca H.; Shiraiwa, Manabu; Stutz, Jochen; Thornton, Joel A.; Tilgner, Andreas; Williams, Brent J.; Zaveri, Rahul A. (2017)
      Oxidation of biogenic volatile organic compounds (BVOC) by the nitrate radical (NO3) represents one of the important interactions between anthropogenic emissions related to combustion and natural emissions from the biosphere. ...
    • Perylene Diimide as a Precise Graphene-like Superoxide Dismutase Mimetic 

      Jalilov, Almaz S.; Nilewski, Lizanne G.; Berka, Vladimir; Zhang, Chenhao; Yakovenko, Andrey A.; Wu, Gang; Kent, Thomas A.; Tsai, Ah-Lim; Tour, James M. (2017)
      Here we show that the active portion of a graphitic nanoparticle can be mimicked by a perylene diimide (PDI) to explain the otherwise elusive biological and electrocatalytic activity of the nanoparticle construct. Development ...
    • Mid-Infrared Trace Gas Sensor Technology Based on Intracavity Quartz-Enhanced Photoacoustic Spectroscopy 

      Wojtas, Jacek; Gluszek, Aleksander; Hudzikowski, Arkadiusz; Tittel, Frank K. (2017)
      The application of compact inexpensive trace gas sensor technology to a mid-infrared nitric oxide (NO) detectoion using intracavity quartz-enhanced photoacoustic spectroscopy (I-QEPAS) is reported. A minimum detection limit ...
    • Differences in BVOC oxidation and SOA formation above and below the forest canopy 

      Schulze, Benjamin C.; Wallace, Henry W.; Flynn, James H.; Lefer, Barry L.; Erickson, Matt H.; Jobson, B. Tom; Dusanter, Sebastien; Griffith, Stephen M.; Hansen, Robert F.; Stevens, Philip S.; VanReken, Timothy; Griffin, Robert J. (2017)
      Gas-phase biogenic volatile organic compounds (BVOCs) are oxidized in the troposphere to produce secondary pollutants such as ozone (O3), organic nitrates (RONO2), and secondary organic aerosol (SOA). Two coupled ...
    • Using molecular imaging to assess the delivery and infection of protease activated virus in animal model of myocardial infarction 

      Zhu, Banghe; Guenther, Caitlin; Kwon, Sunkuk; Sevick-Muraca, Eva M.; Suh, Junghae (2017)
      Cardiovascular diseases remain the greatest cause of death in the US and gene therapy has the potential to be an effective therapy. In this study, we demonstrated MMP-9 based protease-activatable virus (PAV) for selective ...
    • Predicting solvation free energies and thermodynamics in polar solvents and mixtures using a solvation-layer interface condition 

      Tabrizi, Amirhossein Molavi; Goossens, Spencer; Rahimi, Ali Mehdizadeh; Knepley, Matthew; Bardhan, Jaydeep P. (2017)
      We demonstrate that with two small modifications, the popular dielectric continuum model is capable of predicting, with high accuracy, ion solvation thermodynamics (Gibbs free energies, entropies, and heat capacities) in ...
    • Coalescence computations for large samples drawn from populations of time-varying sizes 

      Polanski, Andrzej; Szczesna, Agnieszka; Garbulowski, Mateusz; Kimmel, Marek (2017)
      We present new results concerning probability distributions of times in the coalescence tree and expected allele frequencies for coalescent with large sample size. The obtained results are based on computational methodologies, ...
    • Development of a multimodal foveated endomicroscope for the detection of oral cancer 

      Shadfan, Adam; Darwiche, Hawraa; Blanco, Jesus; Gillenwater, Ann; Richards-Kortum, Rebecca; Tkaczyk, Tomasz S. (2017)
      A multimodal endomicroscope was developed for cancer detection that combines hyperspectral and confocal imaging through a single foveated objective and a vibrating optical fiber bundle. Standard clinical examination has a ...
    • A photoconversion model for full spectral programming and multiplexing of optogeneticᅠsystems 

      Olson, Evan J.; Tzouanas, Constantine N.; Tabor, Jeffrey J. (2017)
      Optogenetics combines externally applied light signals and genetically engineered photoreceptors to control cellular processes with unmatched precision. Here, we develop a mathematical model of wavelength‐ and intensity‐dependent ...
    • Engineering bacterial thiosulfate and tetrathionate sensors for detecting gut inflammation 

      Daeffler, Kristina N-M; Galley, Jeffrey D.; Sheth, Ravi U.; Ortiz-Velez, Laura C.; Bibb, Christopher O.; Shroyer, Noah F.; Britton, Robert A.; Tabor, Jeffrey J. (2017)
      There is a groundswell of interest in using genetically engineered sensor bacteria to study gut microbiota pathways, and diagnose or treat associated diseases. Here, we computationally identify the first biological thiosulfate ...
    • Lenslet array tunable snapshot imaging spectrometer (LATIS) for hyperspectral fluorescence microscopy 

      Dwight, Jason G.; Tkaczyk, Tomasz S. (2017)
      Snapshot hyperspectral imaging augments pixel dwell time and acquisition speeds over existing scanning systems, making it a powerful tool for fluorescence microscopy. While most snapshot systems contain fixed datacube ...
    • Somatic genome editing with CRISPR/Cas9 generates and corrects a metabolic disease 

      Jarrett, Kelsey E.; Lee, Ciaran M.; Yeh, Yi-Hsien; Hsu, Rachel H.; Gupta, Rajat; Zhang, Min; Rodriguez, Perla J.; Lee, Chang Seok; Gillard, Baiba K.; Bissig, Karl-Dimiter; Pownall, Henry J.; Martin, James F.; Bao, Gang; Lagor, William R. (2017)
      Germline manipulation using CRISPR/Cas9 genome editing has dramatically accelerated the generation of new mouse models. Nonetheless, many metabolic disease models still depend upon laborious germline targeting, and are ...
    • Resonant Coupling between Molecular Vibrations and Localized Surface Plasmon Resonance of Faceted Metal Oxide Nanocrystals 

      Agrawal, Ankit; Singh, Ajay; Yazdi, Sadegh; Singh, Amita; Ong, Gary K.; Bustillo, Karen; Johns, Robert W.; Ringe, Emilie; Milliron, Delia J. (2017)
      Doped metal oxides are plasmonic materials that boast both synthetic and postsynthetic spectral tunability. They have already enabled promising smart window and optoelectronic technologies and have been proposed for use ...
    • Modeling micelle formation and interfacial properties with iSAFT classical density functional theory 

      Wang, Le; Haghmoradi, Amin; Liu, Jinlu; Xi, Shun; Hirasaki, George J.; Miller, Clarence A.; Chapman, Walter G. (2017)
      Surfactants reduce the interfacial tension between phases, making them an important additive in a number of industrial and commercial applications from enhanced oil recovery to personal care products (e.g., shampoo and ...
    • Shot noise detection in hBN-based tunnel junctions 

      Zhou, Panpan; Hardy, Will J.; Watanabe, Kenji; Taniguchi, Takashi; Natelson, Douglas (2017)
      High quality Au/hBN/Au tunnel devices are fabricated using transferred atomically thin hexagonal boron nitride as the tunneling barrier. All tunnel junctions show tunneling resistance on the order of several kΩ/μm2. Ohmic ...
    • Interrogating the topological robustness of gene regulatory circuits by randomization 

      Huang, Bin; Lu, Mingyang; Jia, Dongya; Ben-Jacob, Eshel; Levine, Herbert; Onuchic, José N. (2017)
      One of the most important roles of cells is performing their cellular tasks properly for survival. Cells usually achieve robust functionality, for example, cell-fate decision-making and signal transduction, through multiple ...