Now showing items 4878-4897 of 7907

    • Newsletter 

      International Association of Aquatic and Marine Science Libraries and Information Centers (1994-09)
    • Newsletter 

      International Association of Aquatic and Marine Science Libraries and Information Centers (1989-09)
    • Newsletter 

      International Association of Aquatic and Marine Science Libraries and Information Centers (1989-04)
    • Newsletter 

      International Association of Aquatic and Marine Science Libraries and Information Centers (1987-12)
    • Newsletter production into a marine science portal. 

      Avery, Beth; Kelly, Roger J. (IAMSLIC, 2003)
    • Newtonian versus non-Newtonian upper mantle viscosity : implications for subduction initiation 

      Billen, Magali I.; Hirth, Greg (American Geophysical Union, 2005-10-08)
      The effect of rheology on the evolution of the slab-tip during subduction initiation is analyzed using 2-D numerical flow models. Experimentally determined flow laws have both strong temperature- and stress-dependence, ...
    • Next-generation transgenic mice for optogenetic analysis of neural circuits 

      Asrican, Brent; Augustine, George J.; Berglund, Ken; Chen, Susu; Chow, Nick; Deisseroth, Karl; Feng, Guoping; Gloss, Bernd; Hira, Riichiro; Hoffmann, Carolin; Kasai, Haruo; Katarya, Malvika; Kim, Jinsook; Kudolo, John; Lee, Li Ming; Lo, Shun Qiang; Mancuso, James; Matsuzaki, Masanori; Nakajima, Ryuichi; Qiu, Li; Tan, Gregory; Tang, Yanxia; Ting, Jonathan T.; Tsuda, Sachiko; Wen, Lei; Zhang, Xuying; Zhao, Shengli (Frontiers Media, 2013-11-26)
      Here we characterize several new lines of transgenic mice useful for optogenetic analysis of brain circuit function. These mice express optogenetic probes, such as enhanced halorhodopsin or several different versions of ...
    • The NF2 tumor suppressor regulates microtubule-based vesicle trafficking via a novel Rac, MLK and p38SAPK pathway 

      Hennigan, Robert F.; Moon, C. A.; Parysek, L. M.; Monk, K. R.; Morfini, Gerardo A.; Berth, Sarah; Brady, Scott T.; Ratner, Nancy (Nature Publishing Group, 2013-04-23)
      Neurofibromatosis type 2 patients develop schwannomas, meningiomas and ependymomas resulting from mutations in the tumor suppressor gene, NF2, encoding a membrane-cytoskeleton adapter protein called merlin. Merlin regulates ...
    • Niche of harmful alga Aureococcus anophagefferens revealed through ecogenomics 

      Gobler, Christopher J.; Berry, Dianna L.; Dyhrman, Sonya T.; Wilhelm, Steven W.; Salamov, Asaf; Lobanov, Alexei V.; Zhang, Yan; Collier, Jackie L.; Wurch, Louie L.; Kustka, Adam B.; Dill, Brian D.; Shah, Manesh; VerBerkmoes, Nathan C.; Kuo, Alan J.; Terry, Astrid; Pangilinan, Jasmyn; Lindquist, Erika A.; Lucas, Susan; Paulsen, Ian T.; Hattenrath-Lehmann, Theresa K.; Talmage, Stephanie C.; Walker, Elyse A.; Koch, Florian; Burson, Amanda M.; Marcoval, Maria Alejandra; Tang, Ying-Zhong; LeCleir, Gary R.; Coyne, Kathryn J.; Berg, Gry M.; Bertrand, Erin M.; Saito, Mak A.; Gladyshev, Vadim N.; Grigoriev, Igor V. (2011-01)
      Harmful algal blooms (HABs) cause significant economic and ecological damage worldwide. Despite considerable efforts, a comprehensive understanding of the factors that promote these blooms has been lacking because the ...
    • Nitrogen attenuation of terrestrial carbon cycle response to global environmental factors 

      Jain, Atul K.; Yang, Xiaojuan; Kheshgi, Haroon; McGuire, A. David; Post, Wilfred; Kicklighter, David W. (American Geophysical Union, 2009-12-30)
      Nitrogen cycle dynamics have the capacity to attenuate the magnitude of global terrestrial carbon sinks and sources driven by CO2 fertilization and changes in climate. In this study, two versions of the terrestrial carbon ...
    • Nitrogen cycling in oxygen deficient zones : insights from δ15N and δ18O of nitrite and nitrate 

      Buchwald, Carolyn (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-02)
      The stable isotopes, δ15N and δ18O, of nitrite and nitrate can be powerful tools used to interpret nitrogen cycling in the ocean. In order to interpret isotope profiles, the isotope systematics of each process involved ...
    • Nitrogen cycling in the deep sedimentary biosphere : nitrate isotopes in porewaters underlying the oligotrophic North Atlantic 

      Wankel, Scott D.; Buchwald, Carolyn; Ziebis, Wiebke; Wenk, Christine B.; Lehmann, Moritz F. (Copernicus Publications on behalf of the European Geosciences Union, 2015-12-21)
      Nitrogen (N) is a key component of fundamental biomolecules. Hence, its cycling and availability are central factors governing the extent of ecosystems across the Earth. In the organic-lean sediment porewaters underlying ...
    • Nitrogen cycling in the secondary nitrite maximum of the eastern tropical North Pacific off Costa Rica 

      Buchwald, Carolyn; Santoro, Alyson E.; Stanley, Rachel H. R.; Casciotti, Karen L. (John Wiley & Sons, 2015-12-15)
      Nitrite is a central intermediate in the marine nitrogen cycle and represents a critical juncture where nitrogen can be reduced to the less bioavailable N2 gas or oxidized to nitrate and retained in a more bioavailable ...
    • Nitrogen dynamics in a small arctic watershed: retention and downhill movement of 15N 

      Yano, Yuriko; Shaver, Gaius R.; Giblin, Anne E.; Rastetter, Edward B.; Nadelhoffer, Knute J. (2009-06-12)
      We examined short- and long-term nitrogen (N) dynamics and availability along an arctic hillslope in Alaska, USA, using stable isotope of nitrogen (15N), as a tracer. Tracer levels of 15NH4+ were sprayed once onto the ...
    • Nitrogen dynamics in arctic tundra soils of varying age : differential responses to fertilization and warming 

      Yano, Yuriko; Shaver, Gaius R.; Rastetter, Edward B.; Giblin, Anne E.; Laundre, James A. (2013-03)
      In the northern foothills of the Brooks Range, Alaska, a series of glacial retreats has created a landscape that varies widely in time since deglaciation (= soil age), from ~10k years to more than 2M years. Productivity ...
    • Nitrogen effect on carbon-water coupling in forests, grasslands, and shrublands in the arid western United States 

      Felzer, Benjamin S.; Cronin, Timothy W.; Melillo, Jerry M.; Kicklighter, David W.; Schlosser, C. Adam; Dangal, Shree R. S. (American Geophysical Union, 2011-08-25)
      As greenhouse gases, including CO2, accumulate in the atmosphere, the western United States is predicted to undergo large-scale climate warming and reduced summer precipitation in the coming decades. In this study we explore ...
    • Nitrogen fixation in the South Atlantic Gyre and the Benguela Upwelling System 

      Sohm, Jill A.; Hilton, Jason A.; Noble, Abigail E.; Zehr, Jonathan P.; Saito, Mak A.; Webb, Eric A. (American Geophysical Union, 2011-08-27)
      Dinitrogen (N2) fixation is recognized as an important input of new nitrogen (N) to the open ocean gyres, contributing to the export of organic matter from surface waters. However, very little N2-fixation research has ...
    • Nitrogen interception and export by experimental salt marsh plots exposed to chronic nutrient addition 

      Brin, Lindsay D.; Valiela, Ivan; Goehringer, Dale; Howes, Brian L. (Inter-Research, 2010-02-11)
      Mass balance studies conducted in the 1970s in Great Sippewissett Salt Marsh, New England, showed that fertilized plots intercepted 60 to 80% of the nitrogen (N) applied at several treatment levels every year from April ...
    • Nitrogen isotopes in chlorophyll and the origin of Eastern Mediterranean sapropels 

      Sachs, Julian P. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-02)
      The goals of this thesis were: (1) to establish methods for the determination of nitrogen and carbon isotope ratios in marine particulate and sedimentary chlorophyll derivatives; (2) to establish chlorophyll δ15N and ...
    • Nitrogen stable isotopes in the shell of Mercenaria mercenaria trace wastewater inputs from watersheds to estuarine ecosystems 

      Carmichael, Ruth H.; Hattenrath, Theresa K.; Valiela, Ivan; Michener, Robert H. (Inter-Research, 2008-11-25)
      We tested the usefulness of δ15N values in the organic matrix of whole shells from Mercenaria mercenaria as tracers of anthropogenic nitrogen inputs to coastal ecosystems. Low and high stringency acidification methods were ...