Now showing items 4045-4064 of 8539

    • Iron persistence in a distal hydrothermal plume supported by dissolved–particulate exchange 

      Fitzsimmons, Jessica N.; John, Seth G.; Marsay, Christopher M.; Hoffman, Colleen L.; Nicholas, Sarah L.; Toner, Brandy M.; German, Christopher R.; Sherrell, Robert M. (2017-01)
      Hydrothermally-sourced dissolved metals have been recorded in all ocean basins. In the oceans’ largest known hydrothermal plume, extending westward across the Pacific from the Southern East Pacific Rise, dissolved iron and ...
    • Iron stress in open-ocean cyanobacteria (Synechococcus, Trichodesmium, and Crocosphaera spp.) : identification of the IdiA protein 

      Webb, Eric A.; Moffett, James W.; Waterbury, John B. (American Society for Microbiology, 2001-12)
      Cyanobacteria are prominent constituents of the marine biosphere that account for a significant percentage of oceanic primary productivity. In an effort to resolve how open-ocean cyanobacteria persist in regions where the ...
    • Iron supplementation does not worsen respiratory health or alter the sputum microbiome in cystic fibrosis 

      Gifford, Alex H.; Alexandru, Diana M.; Li, Zhigang; Dorman, Dana B.; Moulton, Lisa A.; Price, Katherine E.; Hampton, Thomas H.; Sogin, Mitchell L.; Zuckerman, Jonathan B.; Parker, H. Worth; Stanton, Bruce A.; O'Toole, George A. (2013-10)
      Iron supplementation for hypoferremic anemia could potentiate bacterial growth in the cystic fibrosis (CF) lung, but clinical trials testing this hypothesis are lacking. Twenty-two adults with CF and hypoferremic anemia ...
    • Iron supply and demand in an Antarctic shelf ecosystem 

      McGillicuddy, Dennis J.; Sedwick, Peter N.; Dinniman, M. S.; Arrigo, Kevin R.; Bibby, Thomas S.; Greenan, Blair J. W.; Hofmann, Eileen E.; Klinck, John M.; Smith, Walker O.; Mack, S. L.; Marsay, Christopher M.; Sohst, Bettina M.; van Dijken, Gert L. (John Wiley & Sons, 2015-10-08)
      The Ross Sea sustains a rich ecosystem and is the most productive sector of the Southern Ocean. Most of this production occurs within a polynya during the November–February period, when the availability of dissolved iron ...
    • Iron-binding ligands in the Southern California Current System : mechanistic studies 

      Bundy, Randelle M.; Jiang, Mingshun; Carter, Melissa; Barbeau, Katherine A. (Frontiers Media, 2016-03-15)
      The distributions of dissolved iron and organic iron-binding ligands were examined in water column profiles and deckboard incubation experiments in the southern California Current System (sCCS) along a transition from ...
    • Irreversibly increased nitrogen fixation in Trichodesmium experimentally adapted to elevated carbon dioxide 

      Hutchins, David A.; Walworth, Nathan G.; Webb, Eric A.; Saito, Mak A.; Moran, Dawn M.; McIlvin, Matthew R.; Gale, Jasmine; Fu, Fei-Xue (Nature Publishing Group, 2015-09-01)
      Nitrogen fixation rates of the globally distributed, biogeochemically important marine cyanobacterium Trichodesmium increase under high carbon dioxide (CO2) levels in short-term studies due to physiological plasticity. ...
    • Is ASFA sufficient? The role of inexpensive multidisciplinary databases in the marine science 

      Hooper-Lane, Christopher; Atkins, David P. (IAMSLIC, 1997)
    • Is axonal degeneration a key early event in Parkinson’s disease? 

      Kurowska, Zuzanna; Kordower, Jeffrey H.; Stoessl, A Jon; Burke, Robert E.; Brundin, Patrik; Yue, Zhenyu; Brady, Scott T.; Milbrandt, Jeffrey; Trapp, Bruce D.; Sherer, Todd B.; Medicetty, Satish (2016-06)
      Recent research suggests that in Parkinson’s disease the long, thin and unmyelinated axons of dopaminergic neurons degenerate early in the disease process. We organized a workshop entitled ‘Axonal Pathology in Parkinson’s ...
    • Is biological productivity enhanced at the New England shelfbreak front? 

      Zhang, Weifeng G.; McGillicuddy, Dennis J.; Gawarkiewicz, Glen G. (John Wiley & Sons, 2013-01-31)
      A two-dimensional (cross-shelf) numerical model of the mean seasonal circulation offshore of southern New England predicts upwelling at the shelfbreak front. Expected ramifications of this upwelling include enhancement of ...
    • Is global ocean sprawl a cause of jellyfish blooms? 

      Duarte, Carlos M.; Pitt, Kylie A.; Lucas, Cathy H.; Purcell, Jennifer E.; Uye, Shin-Ichi; Robinson, Kelly L.; Brotz, Lucas; Decker, Mary Beth; Sutherland, Kelly R.; Malej, Alenka; Madin, Laurence P.; Mianzan, Hermes; Gili, Josep-Maria; Fuentes, Veronica; Atienza, Dacha; Pages, Francesc; Breitburg, Denise; Malek, Jennafer; Graham, William M.; Condon, Robert H. (Ecological Society of America, 2012-09-07)
      Jellyfish (Cnidaria, Scyphozoa) blooms appear to be increasing in both intensity and frequency in many coastal areas worldwide, due to multiple hypothesized anthropogenic stressors. Here, we propose that the proliferation ...
    • Is it the global net? 

      Avery, Beth; Pretorius, Martha (IAMSLIC, 2002)
    • Is science as global as we think? 

      Wong, Bob B. M.; Kokko, Hanna (2005)
      A cornerstone of scientific practice is the perceived freedom with which knowledge is disseminated. But does the scientific community make good use of all that is available? Researchers have, on occasion, been accused of ...
    • Is the Faroe Bank Channel overflow hydraulically controlled? 

      Girton, James B.; Pratt, Lawrence J.; Sutherland, David A.; Price, James F. (American Meteorological Society, 2006-12)
      The overflow of dense water from the Nordic Seas through the Faroe Bank Channel (FBC) has attributes suggesting hydraulic control—primarily an asymmetry across the sill reminiscent of flow over a dam. However, this aspect ...
    • Is the northern high-latitude land-based CO2 sink weakening? 

      Hayes, Daniel J.; McGuire, A. David; Kicklighter, David W.; Gurney, Kevin R.; Burnside, T. J.; Melillo, Jerry M. (American Geophysical Union, 2011-08-30)
      Studies indicate that, historically, terrestrial ecosystems of the northern high-latitude region may have been responsible for up to 60% of the global net land-based sink for atmospheric CO2. However, these regions have ...
    • Is there a need for a Mediterranean interest group? 

      Collins, Jean (IAMSLIC, 2002)
    • iSAM2 : incremental smoothing and mapping using the Bayes tree 

      Kaess, Michael; Johannsson, Hordur; Roberts, Richard; Ila, Viorela; Leonard, John J.; Dellaert, Frank (2011-04-06)
      We present a novel data structure, the Bayes tree, that provides an algorithmic foundation enabling a better understanding of existing graphical model inference algorithms and their connection to sparse matrix factorization ...

      Caton, Amy; Baca, David (IAMSLIC, 2015)
    • Isolated communities of Epsilonproteobacteria in hydrothermal vent fluids of the Mariana Arc seamounts 

      Huber, Julie A.; Cantin, Holly V.; Huse, Susan M.; Mark Welch, David B.; Sogin, Mitchell L.; Butterfield, David A. (2010-05)
      Low-temperature hydrothermal vent fluids represent access points to diverse microbial communities living in oceanic crust. This study examined the distribution, relative abundance, and diversity of Epsilonproteobacteria ...
    • Isolating the hydrodynamic triggers of the dive response in eastern oyster larvae 

      Wheeler, Jeanette D.; Helfrich, Karl R.; Anderson, Erik J.; Mullineaux, Lauren S. (John Wiley & Sons, 2015-05-06)
      Understanding the behavior of larval invertebrates during planktonic and settlement phases remains an open and intriguing problem in larval ecology. Larvae modify their vertical swimming behavior in response to water column ...
    • Isolation and characterization of novel psychrophilic, neutrophilic, Fe-oxidizing, chemolithoautotrophic α- and γ-proteobacteria from the deep sea 

      Edwards, Katrina J.; Rogers, Daniel R.; Wirsen, Carl O.; McCollom, Thomas M. (American Society for Microbiology, 2003-05)
      We report the isolation and physiological characterization of novel, psychrophilic, iron-oxidizing bacteria (FeOB) from low-temperature weathering habitats in the vicinity of the Juan de Fuca deep-sea hydrothermal area. ...