Browsing by Title

Now showing items 22382-22401 of 56955

    • The H 2 SO 4 -HNO 3 -NH 3 system at high humidities and in fogs: 1. Spatial and temporal patterns in the San Joaquin Valley of California 

      Jacob, Daniel James; Munger, J. William; Waldman, Jed M.; Hoffmann, Michael R. (Wiley-Blackwell, 1986)
      A systematic characterization of the atmospheric H2SO4-HNO3-NH3 system was conducted in the fog water, the aerosol, and the gas phase at a network of sites in the San Joaquin Valley of California. Spatial patterns of ...

    • H(3)(+) emission in the ejecta of SN 1987A 

      Yan, Min; Dalgarno, A. (American Astronomical Society, 2009)
      We present a chemical and thermal model of the envelope of SN 1987A. We assume that half of the hydrogen envelope is broken into many dense clumps and mixed into the inner region. For a range of densities and energy ...

    • H+ Transport Is an Integral Function of the Mitochondrial ADP/ATP Carrier 

      Vidoni, Sara; Bertholet, Ambre; Chouchani, Edward; Kazak, Lawrence; Angelin, Alessia; Fedorenko, Andriy; Long, Jonathan; Garrity, Ryan; Cho, Joonseok; Terada, Naohiro; Wallace, Douglas; Spiegelman, Bruce; Kirichok, Yurly (Springer Science and Business Media LLC, 2019-07)
      The mitochondrial ADP/ATP carrier (AAC) is a major transport protein of the inner mitochondrial membrane. It exchanges mitochondrial ATP for cytosolic ADP and controls cellular production of ATP. In addition, it has been ...

    • The H-beta emission line profile of Arakelian 120 

      Foltz, C. B.; Wilkes, Belinda Jane; Peterson, B. M. (IOP Publishing, 1983)
      A high-quality (S/N in the range from 30 to 100), high-resolution (approximately 1.8 A) spectrum of the photometrically and spectroscopically variable Seyfert 1 galaxy Arakelian 120 has been obtained in the wavelength ...

    • H-means image segmentation to identify solar thermal features 

      Stein, Nathan Mathes; Stein, Nathan; Kashyap, Vinay L.; Meng, Xiao-Li; van Dyk, David (Institute of Electrical and Electronics Engineers, 2012)
      Properly segmenting multiband images of the Sun by their thermal properties will help determine the thermal structure of the solar corona. However, off-the-shelf segmentation algorithms are typically inappropriate because ...

    • H. Gregg Lewis Memorial Comments 

      Ashenfelter, Orley; Rosen, Sherwin; Freeman, Richard Barry; McElroy, Marjorie B. (University of Chicago Press, 1994)

    • The H1N1 pandemic: media frames, stigmatization and coping 

      McCauley, Michael; Minsky, Sara; Viswanath, Kasisomayajula (BioMed Central, 2013)
      Background: Throughout history, people have soothed their fear of disease outbreaks by searching for someone to blame. Such was the case with the April 2009 H1N1 flu outbreak. Mexicans and other Latinos living in the US ...

    • H1N1 vaccination and adults with underlying health conditions in the US 

      Goldstein, Edward; Lipsitch, Marc (Public Library of Science (PLoS), 2009)
      65% of fatalities from pH1N1 infections in a large US case series occur in adults with underlying health conditions other than pregnancy, but it appears that only relatively few high-risk adults will get vaccinated during ...

    • The H2 Blockers' Rx-to OTC Switch: For Whom Will It Spell Relief? 

      Kisloff, Michelle A. (1995)
      Tylenol. Advil. Monistat 7. Imodium AD. These are some of the most commonly used, widely available, and successful drugs in the United States. All of them began as drugs only available by a prescription. All of them made ...

    • H2 excitation in turbulent interstellar clouds 

      Cecchi-Pestellini, C.; Casu, S.; Dalgarno, Alexander (Oxford University Press (OUP), 2005)
      We discuss the observational differences between lines of sight that intercept a group of turbulent dissipative structures and lines of sight that cross less-active regions. Using time-dependent calculations we show that ...

    • H2A.Z Landscapes and Dual Modifications in Pluripotent and Multipotent Stem Cells Underlie Complex Genome Regulatory Functions 

      Ku, Manching; Jaffe, Jacob D; Koche, Richard P; Rheinbay, Esther; Endoh, Mitsuhiro; Koseki, Haruhiko; Carr, Steven A; Bernstein, Bradley E (BioMed Central, 2012)
      Background: The histone variant H2A.Z has been implicated in nucleosome exchange, transcriptional activation and Polycomb repression. However, the relationships among these seemingly disparate functions remain obscure. ...

    • H2CO and N2H+ in Protoplanetary Disks: Evidence for a CO-Ice Regulated Chemistry 

      Qi, Chunhua; Oberg, Karin; Wilner, David J. (IOP Publishing, 2013)
      We present Submillimeter Array observations of H2CO and N2H+ emission in the disks around the T Tauri star TW Hya and the Herbig Ae star HD 163296 at 2"-6" resolution and discuss the distribution of these species with ...

    • H2CO Distribution and Formation in the TW HYA Disk 

      Oberg, Karin; Guzman, Viviana; Merchantz, Christopher; Qi, Chunhua; Andrews, Sean; Cleeves, Lauren; Huang, Jane; Loomis, Ryan; Wilner, David; Brinch, Christian; Hogerheijde, Michiel (American Astronomical Society, 2017-04-12)
      H2CO is one of the most readily detected organic molecules in protoplanetary disks. Yet its distribution and dominant formation pathway(s) remain largely unconstrained. To address these issues, we present ALMA observations ...

    • H2O Masers and Supersonic Turbulence 

      Strelnitski, V.; Alexander, J.; Gezari, S.; Holder, B. P.; Moran, James M.; Reid, Malcolm Jamieson (IOP Publishing, 2002)
      We use unpublished and published VLBI results to investigate the geometry and the statistical properties of the velocity field traced by H2O masers in five galactic regions of star formation — Sgr B2(M), W49N, W51(MAIN), ...

    • H2O2-responsive molecularly engineered polymer nanoparticles as ischemia/reperfusion-targeted nanotherapeutic agents 

      Lee, Dongwon; Bae, Soochan; Hong, Donghyun; Lim, Hyungsuk; Yoon, Joo Heung; Hwang, On; Park, Seunggyu; Ke, Qingen; Khang, Gilson; Kang, Peter M. (Nature Publishing Group, 2013)
      The main culprit in the pathogenesis of ischemia/reperfusion (I/R) injury is the overproduction of reactive oxygen species (ROS). Hydrogen peroxide (H2O2), the most abundant form of ROS produced during I/R, causes inflammation, ...

    • H3+ in Diffuse Interstellar Gas 

      Cecchi-Pestellini, C.; Dalgarno, Alexander (Oxford University Press (OUP), 2000)
      A model is constructed of the material in front of the star Cygnus OB2 no. 12 in which dense cores are embedded in diffuse clumps of gas. The model reproduces the measured abundances of Graphic C2 and CO, and predicts a ...

    • H3K36 methylation maintains cell identity by regulating opposing lineage programmes 

      Hoetker, Michael; Yagi, Masaki; Di Stefano, Bruno; Langerman, Justin; Cristea, Simona; Wong, Lai Ping; Huebner, Aaron J; Charlton, Jocelyn; Deng, Weixian; Haggerty, Chuck; Sadreyev, Ruslan I; Meissner, Alexander; Michor, Franziska; Plath, Kathrin; Hochedlinger, Konrad (Springer Science and Business Media LLC, 2023-07-17)
      The epigenetic mechanisms that maintain differentiated cell states remain largely unexplored. Here, we employed histone mutants to uncover a crucial role for H3K36-methylation in the maintenance of cell identities across ...

    • H3K9 methyltransferases and demethylases control lung tumor-propagating cells and lung cancer progression 

      Rowbotham, Samuel; Li, F.; Dost, Antonella; Louie, Sharon M.; Marsh, B. P.; Pessina, Patrizia; Anbarasu, C. R.; Brainson, C. F.; Tuminello, S. J.; Lieberman, A.; Ryeom, S.; Schlaeger, Thorsten; Aronow, B. J.; Watanabe, H.; Wong, K. K.; Kim, Carla (Springer Science and Business Media LLC, 2018-11-19)
      Epigenetic regulators are attractive anticancer targets, but the promise of therapeutic strategies inhibiting some of these factors has not been proven in vivo or taken into account tumor cell heterogeneity. Here we show ...

    • The \(H_2SO_4-HNO_3-NH_3\) system at high humidities and in fogs: 2. Comparison of field data with thermodynamic calculations 

      Jacob, Daniel James; Waldman, Jed M.; Munger, J. William; Hoffmann, Michael R. (Wiley-Blackwell, 1986)
      Concentrations of HNO(g) and NH(g) determined in the field were compared to predictions from aerosol equilibrium models. The products of HNO(g) and NH(g) concentrations measured under cool and humid nonfoggy conditions ...

    • Habeas Corpus Jurisdiction, Substantive Rights, and the War on Terror 

      Fallon, Richard Henry; Meltzer, Daniel J. (Harvard University, Harvard Law School, 2007)
      This Article provides a broad-lens, synoptic perspective on war-on-terrorism questions arising within the habeas corpus jurisdiction of the federal courts. Analytically, it develops a clear framework for sorting out the ...