Now showing items 3485-3504 of 7131

  • Juvenile fish assemblages collected on unconsolidated sediments of the southeast United States continental shelf 

    Walsh, Harvey J.; Marancik, Katrin E.; Hare, Jonathan A. (U.S. Department of Commerce, NOAA, 2006)
    Patterns were investigated in juvenile fish use of unconsolidated sediments on the southeast United States continental shelf off Georgia. Juvenile fish and environmental data were sampled at ten stations along a 110-km ...
  • K-distribution fading models for Bayesian estimation of an underwater acoustic channel 

    Laferriere, Alison Beth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-02)
    Current underwater acoustic channel estimation techniques generally apply linear MMSE estimation. This approach is optimal in a mean square error sense under the assumption that the impulse response fluctuations are well ...
  • The Kallisti Limnes, carbon dioxide-accumulating subsea pools 

    Camilli, Richard; Nomikou, Paraskevi; Escartin, Javier; Ridao, Pere; Mallios, Angelos; Kilias, Stephanos P.; Argyraki, Ariadne; Andreani, Muriel; Ballu, Valerie; Campos, Ricard; Deplus, Christine; Gabsi, Taoufic; Garcia, Rafael; Gracias, Nuno; Hurtos, Natalia; Magi, Lluis; Mevel, Catherine; Moreira, Manuel; Palomeras, Narcis; Pot, Olivier; Ribas, David; Ruzie, Lorraine; Sakellariou, Dimitris (Nature Publishing Group, 2015-07-16)
    Natural CO2 releases from shallow marine hydrothermal vents are assumed to mix into the water column, and not accumulate into stratified seafloor pools. We present newly discovered shallow subsea pools located within the ...
  • Kalman filter estimation of underwater vehicle position and attitude using Doppler velocity aided inertial motion unit 

    Leader, Daniel Eugene (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-09)
    This Paper explores the use of an extended Kalman filter to provide real-time estimates of underwater vehicle position and attitude. The types of previously available sensors are detailed including strapdown accelerometers, ...
  • KAPEX RAFOS float data report 1997-1999 part B : float trajectories at 750 m in the Benguela Current 

    Richardson, Philip L.; Pacheco, M. A.; Wooding, Christine M. (Woods Hole Oceanographic Institution, 2003-06)
    Thirty-two RAFOS floats were launched at the depth of intermediate water, near 750 m, in the Benguela Current along 30S and its extension along 7W. The floats were tracked acoustically for two years during 1997–1999. ...
  • The karyomastigont as an evolutionary seme 

    Chapman, Michael; Alliegro, Mark C. (University of Chicago Press, 2012-12)
    The problem of eukaryogenesis—the evolutionary mechanism whereby eukaryotic cells evolved from prokaryotes—remains one of the great unsolved mysteries of cell biology, possibly due to the reductionist tendency of most ...
  • The Keck Carbon Cycle AMS Laboratory, University of California, Irvine : status report 

    Beverly, Robert K.; Beaumont, Will; Tauz, Denis; Ormsby, Kaelyn M.; von Reden, Karl F.; Santos, Guaciara M.; Southon, John R. (Dept. of Geosciences, University of Arizona, 2010-08)
    We present a status report of the accelerator mass spectrometry (AMS) facility at the University of California, Irvine, USA. Recent spectrometer upgrades and repairs are discussed. Modifications to preparation laboratory ...
  • A key to the stromateoid fishes 

    Haedrich, Richard L.; Horn, Michael H. (Woods Hole Oceanographic Institution, 1972-03)
    Our primary purpose in preparing "A Key to the Stromateoid Fishes" is to provide field workers and curators with a convenient and concise aid for the identification of the diverse species in this somewhat difficult ...
  • Keys to marine invertebrates of the Woods Hole region : a manual for the identification of the more common marine invertebrates 

    Smith, Ralph I. (Marine Biological Laboratory, 1964)
    From the Preface: This handbook of keys is an attempt to fill an obvious need at Woods Hole, the need for a general reference on marine invertebrates for the use of students and investigators who want to know what is here ...
  • Killer whales and marine mammal trends in the North Pacific : a re-examination of evidence for sequential megafauna collapse and the prey-switching hypothesis 

    Wade, Paul R.; Burkanov, Vladimir N.; Dahlheim, Marilyn E.; Friday, Nancy A.; Fritz, Lowell W.; Loughlin, Thomas R.; Mizroch, Sally A.; Muto, Marcia M.; Rice, Dale W.; Barrett-Lennard, Lance G.; Black, Nancy A.; Burdin, Alexander M.; Calambokidis, John; Cerchio, Sal; Ford, John K. B.; Jacobsen, Jeff K.; Matkin, Craig O.; Matkin, Dena R.; Mehta, Amee V.; Small, Robert J.; Straley, Janice M.; McCluskey, Shannon M.; VanBlaricom, Glenn R. (Blackwell, 2007-10-26)
    Springer et al. (2003) contend that sequential declines occurred in North Pacific populations of harbor and fur seals, Steller sea lions, and sea otters. They hypothesize that these were due to increased predation by killer ...
  • Kin and population recognition in sympatric Lake Constance perch (Perca fluviatilis L.) : can assortative shoaling drive population divergence? 

    Behrmann-Godel, Jasminca; Gerlach, Gabriele; Eckmann, Reiner (2005-08-02)
    Prior studies have shown that perch (Perca fluviatilis L.) of Lake Constance belong to two genetically different but sympatric populations, and that local aggregations of juveniles and adults contain closely related kin. ...
  • Kinematic evaluation of end effector design 

    Edwards, Gary W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-09)
    The complex, many degree-of-freedom end effectors at the leading edge of technology would be unusable in the sea bottom research environment. Simpler designs are required to provide adequate reliability for subsea ...
  • The kinematics and dynamics of the New England continental shelf and shelf/slope front 

    Flagg, Charles Noel (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1977-04)
    A 37 day long field program was carried out in March 1974 on the New England continental shelf break to study the current and hydrographic structure and variability on the shelf and in the shelf/slope front. A second ...
  • Kinematics and energetics of the mesoscale mid-ocean circulation : MODE 

    Richman, James G. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1976-09)
    The temporal and spatial variability of low frequency moored temperature and velocity observations, obtained as part of the Mid-Ocean Dynamics Experiment (MODE), are analyzed to study the kinematics and energetics of ...
  • Kinesin family member 6 (kif6) is necessary for spine development in zebrafish 

    Buchan, Jillian G.; Gray, Ryan S.; Gansner, John M.; Alvarado, David M.; Burgert, Lydia; Gitlin, Jonathan D.; Gurnett, Christina A.; Goldsmith, Matthew I. (2014-06)
    Idiopathic scoliosis is a form of spinal deformity that affects 2–3% of children and results in curvature of the spine without structural defects of the vertebral units. The pathogenesis of idiopathic scoliosis remains ...
  • Kinetic constraints on acylated homoserine lactone-based quorum sensing in marine environments 

    Hmelo, Laura R.; Van Mooy, Benjamin A. S. (Inter-Research, 2009-02-04)
    Quorum sensing (QS) via acylated homoserine lactones (AHLs) was discovered in the ocean, yet AHLs are expected to be very short-lived at seawater pH due to rapid abiotic degradation. Quorum quenching, the enzymatic degradation ...
  • Kinetic framework of spindle assembly checkpoint signaling 

    Dick, Amalie E.; Gerlich, Daniel W. (2013-08)
    The mitotic spindle assembly checkpoint (SAC) delays anaphase onset until all chromosomes have attached to both spindle poles1, 2. Here, we investigated SAC signaling kinetics in response to acute detachment of individual ...
  • Kinetic processes of mantle minerals 

    Koga, Kenneth T. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
    This dissertation discusses the experimental results designed to constrain the processes of MORB generation. The main focus of this study is to investigate the location and the related processes of the transformation ...
  • Kinetics of H2–O2–H2O redox equilibria and formation of metastable H2O2 under low temperature hydrothermal conditions 

    Foustoukos, Dionysis I.; Houghton, Jennifer L.; Seyfried, William E.; Sievert, Stefan M.; Cody, George D. (2010-07-23)
    Hydrothermal experiments were conducted to evaluate the kinetics of H2(aq) oxidation in the homogeneous H2-O2-H2O system at conditions reflecting subsurface/near-seafloor hydrothermal environments (55-250 oC and 242-497 ...