Now showing items 211-230 of 987

    • Distribution of postsynaptic density (PSD)-95 and Ca2+/calmodulin-dependent protein kinase II at the PSD 

      Petersen, Jennifer D.; Chen, Xiaobing; Vinade, Lucia; Dosemeci, Ayse; Lisman, John E.; Reese, Thomas S. (Society for Neuroscience, 2003-12-03)
      Postsynaptic densities (PSDs) contain proteins that regulate synaptic transmission. We determined the positions of calcium/calmodulin-dependent protein kinase II (CaMKII) and PSD-95 within the three-dimensional structure ...
    • Distribution, species composition and management implications of seed banks in southern New England coastal plain ponds 

      Neill, Christopher; Bezerra, Maira Ometto; McHorney, Richard; O’Dea, Claire B. (2008-12)
      Buried seeds that germinate during periods of low water or water level drawdown can play important roles in shaping plant community composition, community dynamics and species richness in ecosystems with fluctuating water ...
    • Disturbance regimes predictably alter diversity in an ecologically complex bacterial system 

      Gibbons, Sean M.; Scholz, Monika; Hutchison, Alan L.; Dinner, Aaron R.; Gilbert, Jack A.; Coleman, Maureen L. (American Society for Microbiology, 2016-12-20)
      Diversity is often associated with the functional stability of ecological communities from microbes to macroorganisms. Understanding how diversity responds to environmental perturbations and the consequences of this ...
    • Divergent responses of Atlantic coastal and oceanic Synechococcus to iron limitation 

      Mackey, Katherine R. M.; Post, Anton F.; McIlvin, Matthew R.; Cutter, Gregory A.; John, Seth G.; Saito, Mak A. (2015-06-19)
      Marine Synechococcus are some of the most diverse and ubiquitous phytoplankton, and iron (Fe) is an essential micronutrient that limits productivity in many parts of the ocean. To investigate how coastal and oceanic Atlantic ...
    • Diverse styles of submarine venting on the ultraslow spreading Mid-Cayman Rise 

      German, Christopher R.; Bowen, Andrew D.; Coleman, M. L.; Honig, D. L.; Huber, Julie A.; Jakuba, Michael V.; Kinsey, James C.; Kurz, Mark D.; Leroy, S.; McDermott, Jill M.; Mercier de Lepinay, B.; Nakamura, Ko-ichi; Seewald, Jeffrey S.; Smith, J. L.; Sylva, Sean P.; Van Dover, Cindy L.; Whitcomb, Louis L.; Yoerger, Dana R. (2010-06-24)
      Thirty years after the first discovery of high-temperature submarine venting, the vast majority of the global Mid Ocean Ridge remains unexplored for hydrothermal activity. Of particular interest are the world’s ultra-slow ...
    • Diversity and distribution of subseafloor Thermococcales populations in diffuse hydrothermal vents at an active deep-sea volcano in the northeast Pacific Ocean 

      Huber, Julie A.; Butterfield, David A.; Baross, John A. (American Geophysical Union, 2006-12-20)
      The presence, diversity, and distribution of a key group of subseafloor archaea, the Thermococcales, was examined in multiple diffuse flow hydrothermal vents at Axial Seamount, an active deep-sea volcano located in the ...
    • DNA damage induces nuclear actin filament assembly by Formin-2 and Spire-1/2 that promotes efficient DNA repair 

      Belin, Brittany J.; Lee, Terri; Mullins, R. Dyche (eLife Sciences Publications, 2015-08-19)
      Actin filaments assemble inside the nucleus in response to multiple cellular perturbations, including heat shock, protein misfolding, integrin engagement, and serum stimulation. We find that DNA damage also generates ...
    • Does elevated CO2 alter silica uptake in trees? 

      Fulweiler, Robinson W.; Maguire, Timothy J.; Carey, Joanna C.; Finzi, Adrien C. (Frontiers Media, 2015-01-13)
      Human activities have greatly altered global carbon (C) and Nitrogen (N) cycling. In fact, atmospheric concentrations of carbon dioxide (CO2) have increased 40% over the last century and the amount of N cycling in the ...
    • Draft genome sequence of marine alphaproteobacterial strain HIMB11, the first cultivated representative of a unique lineage within the Roseobacter clade possessing an unusually small genome 

      Durham, Bryndan P.; Grote, Jana; Whittaker, Kerry A.; Bender, Sara J.; Luo, Haiwei; Grim, Sharon L.; Brown, Julia; Casey, John F.; Dron, Antony; Florez-Leiva, Lennis; Krupke, Andreas; Luria, Catherine M.; Mine, Aric; Nigro, Olivia D.; Pather, Santhiska; Talarmin, Agathe; Wear, Emma; Weber, Thomas; Wilson, Jesse; Church, Matthew J.; DeLong, Edward F.; Karl, David M.; Steward, Grieg F.; Eppley, John; Kyrpides, Nikos C.; Schuster, Stephan; Rappe, Michael S. (Genomic Standards Consortium, 2014)
      Strain HIMB11 is a planktonic marine bacterium isolated from coastal seawater in Kaneohe Bay, Oahu, Hawaii belonging to the ubiquitous and versatile Roseobacter clade of the alphaproteobacterial family Rhodobacteraceae. ...
    • DRISEE overestimates errors in metagenomic sequencing data 

      Eren, A. Murat; Morrison, Hilary G.; Huse, Susan M.; Sogin, Mitchell L. (Oxford University Press, 2013-05-22)
      The extremely high error rates reported by Keegan et al. in ‘A platform-independent method for detecting errors in metagenomic sequencing data: DRISEE’ (PLoS Comput Biol 2012;8:e1002541) for many next-generation sequencing ...
    • Drought legacies influence the long-term carbon balance of a freshwater marsh 

      Rocha, Adrian V.; Goulden, Michael L. (American Geophysical Union, 2010-09-30)
      Experimental manipulations provide a powerful tool for understanding an ecosystem's response to environmental perturbation. We combined paired eddy covariance towers with an experimental manipulation of water availability ...
    • Dynamic displacement of normal and detached semicircular canal cupula 

      Rabbitt, Richard D.; Breneman, Kathryn D.; King, Curtis; Yamauchi, Angela M.; Boyle, Richard; Highstein, Stephen M. (Springer, 2009-06-10)
      The dynamic displacement of the semicircular canal cupula and modulation of afferent nerve discharge were measured simultaneously in response to physiological stimuli in vivo. The adaptation time constant(s) of normal ...
    • Dynamic masquerade with morphing 3D skin in cuttlefish 

      Panetta, Deanna; Buresch, Kendra C.; Hanlon, Roger (2017-02-03)
      Masquerade is a defence tactic in which a prey resembles an inedible or inanimate object thus causing predators to misclassify it. Most masquerade colour patterns are static although some species adopt postures or behaviours ...
    • The dynamic relationships between the three events that release individual Na+ ions from the Na+/K+-ATPase 

      Gadsby, David C.; Bezanilla, Francisco; Rakowski, Robert F.; De Weer, Paul; Holmgren, Miguel (Nature Publishing Group, 2012-02-14)
      Na+/K+ pumps move net charge through the cell membrane by mediating unequal exchange of intracellular Na+ and extracellular K+. Most charge moves during transitions that release Na+ to the cell exterior. When pumps are ...
    • Dynamics of myosin, microtubules, and Kinesin-6 at the cortex during cytokinesis in Drosophila S2 cells 

      Vale, Ronald D.; Spudich, James A.; Griffis, Eric R. (Rockefeller University Press, 2009-08)
      Signals from the mitotic spindle during anaphase specify the location of the actomyosin contractile ring during cytokinesis, but the detailed mechanism remains unresolved. Here, we have imaged the dynamics of green fluorescent ...
    • Dynamics of N removal over annual time periods in a suburban river network 

      Wollheim, Wilfred M.; Peterson, Bruce J.; Thomas, Suzanne M.; Hopkinson, Charles S.; Vorosmarty, Charles J. (American Geophysical Union, 2008-09-23)
      River systems are dynamic, highly connected water transfer networks that integrate a wide range of physical and biological processes. We used a river network nitrogen (N) removal model with daily temporal resolution to ...
    • Dynamics of tongue microbial communities with single-nucleotide resolution using oligotyping 

      Mark Welch, Jessica L.; Utter, Daniel R.; Rossetti, Blair J.; Mark Welch, David B.; Eren, A. Murat; Borisy, Gary G. (Frontiers Media, 2014-11-07)
      The human mouth is an excellent system to study the dynamics of microbial communities and their interactions with their host. We employed oligotyping to analyze, with single-nucleotide resolution, oral microbial 16S ribosomal ...
    • Ecological constraints on planktonic nitrogen fixation in saline estuaries. I. Nutrient and trophic controls 

      Marino, Roxanne; Chan, Francis; Howarth, Robert W.; Pace, Michael L.; Likens, Gene E. (Inter-Research, 2006-03-15)
      Heterocystous, planktonic cyanobacteria capable of fixing atmospheric N2 into available nitrogen (N) are common and critically important to nutrient cycling in many lakes, yet they are rarely observed in estuaries at ...
    • Ecological functions of uncultured microorganisms in the cobalt-rich ferromanganese crust of a seamount in the central Pacific are elucidated by fosmid sequencing 

      Huo, Yingyi; Cheng, Hong; Post, Anton F.; Wang, Chunsheng; Jiang, Xiawei; Pan, Jie; Wu, Min; Xu, Xuewei (2014-07)
      Cobalt-rich ferromanganese is an important seafloor mineral and is abundantly present in the seamount crusts. Such crusts form potential hotspots for biogeochemical activity and microbial diversity, yet our understanding ...
    • Ecological homogenization of urban USA 

      Groffman, Peter M.; Cavender-Bares, Jeannine; Bettez, Neil D.; Grove, J. Morgan; Hall, Sharon J.; Heffernan, James B.; Hobbie, Sarah E.; Larson, Kelli L.; Morse, Jennifer L.; Neill, Christopher; Nelson, Kristen; O'Neil-Dunne, Jarlath; Ogden, Laura; Pataki, Diane E.; Polsky, Colin; Chowdhury, Rinku Roy; Steele, Meredith K. (Ecological Society of America, 2014-02)
      A visually apparent but scientifically untested outcome of land-use change is homogenization across urban areas, where neighborhoods in different parts of the country have similar patterns of roads, residential lots, ...