Now showing items 524-543 of 811

  • 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 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 ...
  • Nitrous oxide nitrification and denitrification 15N enrichment factors from Amazon forest soils 

    Perez, Tibisay; Garcia-Montiel, Diana; Trumbore, Susan E.; Tyler, Stanley; de Camargo, Plinio; Moreira, Marcelo; Piccolo, Marisa C.; Cerri, Carlos C. (Ecological Society of America, 2006-12)
    The isotopic signatures of 15N and 18O in N2O emitted from tropical soils vary both spatially and temporally, leading to large uncertainty in the overall tropical source signature and thereby limiting the utility of isotopes ...
  • NLOAD : an interactive, web-based modeling tool for nitrogen management in estuaries 

    Bowen, Jennifer L.; Ramstack, Joy M.; Mazzilli, S.; Valiela, Ivan (Ecological Society of America, 2007-07)
    Eutrophication of estuaries is an increasing global concern that requires development of new tools to identify causes, quantify conditions, and propose management options that address this environmental problem. Since ...
  • A non-invasive method for measuring preimplantation embryo physiology 

    Trimarchi, James R.; Liu, Lin; Porterfield, D. Marshall; Smith, Peter J. S.; Keefe, David L. (Cambridge University Press, 2000-02)
    The physiology of the early embryo may be indicative of embryo vitality and therefore methods for non-invasively monitoring physiological parameters from embryos could improve preimplantation diagnoses. The self-referencing ...
  • North American wetlands and mosquito control 

    Rey, Jorge R.; Walton, William E.; Wolfe, Roger J.; Connelly, C. Roxanne; O'Connell, Sheila M.; Berg, Joe; Sakolsky-Hoopes, Gabrielle E.; Laderman, Aimlee D. (MDPI AG, 2012-12-11)
    Wetlands are valuable habitats that provide important social, economic, and ecological services such as flood control, water quality improvement, carbon sequestration, pollutant removal, and primary/secondary production ...
  • A novel 65 kDa RNA-binding protein in squid presynaptic terminals 

    Lico, Diego T. P.; Rosa, José C.; DeGiorgis, Joseph A.; de Vasconcelos, E. J. R.; Casaletti, L.; Tauhata, S. B. F.; Baqui, M. M. A.; Fukuda, M.; Moreira, J. E.; Larson, Roy E. (2009-11-09)
    A polyclonal antibody (C4), raised against the head domain of chicken myosin Va, reacted strongly towards a 65 kDa polypeptide (p65) on western blots of extracts from squid optic lobes but did not recognize the heavy ...
  • A novel lipid binding protein is a factor required for MgATP stimulation of the squid nerve Na+/Ca2+ exchanger 

    Berberian, Graciela; Bollo, Mariana; Montich, Guillermo; Roberts, Gretel; DeGiorgis, Joseph A.; DiPolo, Reinaldo; Beauge, Luis (2008-11-14)
    Here we identify a cytosolic factor essential for MgATP up-regulation of the squid nerve Na+/Ca2+ exchanger. Mass spectroscopy and Western blot analysis established that this factor is a member of the lipocalin super ...
  • A novel SDS-stable dimer of a heterogeneous nuclear ribonucleoprotein at presynaptic terminals of squid neurons 

    Lico, Diego T. P.; Lopes, Gabriel S.; Brusco, Janaina; Rosa, José C.; Gould, Robert M.; DeGiorgis, Joseph A.; Larson, Roy E. (2015-05)
    The presence of mRNAs in synaptic terminals and their regulated translation are important factors in neuronal communication and plasticity. Heterogeneous nuclear ribonucleoprotein (hnRNP) complexes are involved in the ...
  • Novel γ-carboxyglutamic acid-containing peptides from the venom of Conus textile 

    Czerwiec, Eva; Kalume, Dario E.; Roepstorff, Peter; Hambe, Bjorn; Furie, Bruce; Furie, Barbara C.; Stenflo, Johan (2006-04-25)
    The cone snail is the only invertebrate system in which the vitamin K dependent carboxylase (or γ-carboxylase) and its product γ-carboxyglutamic acid (Gla)1 have been identified. It remains the sole source of ...
  • A novel-type luciferin from Siberian luminous earthworm Fridericia heliota : structure elucidation by spectral studies and total synthesis 

    Petushkov, Valentin N.; Dubinnyi, Maxim A.; Tsarkova, Aleksandra S.; Rodionova, Natalja S.; Baranov, Mikhail S.; Kublitski, Vadim S.; Shimomura, Osamu; Yampolsky, Ilia V. (2014-02)
    We report structure elucidation and synthesis of the luciferin from the recently discovered luminous earthworm Fridericia heliota. This luciferin represents a key component of a novel ATP-dependent bioluminescence system. ...
  • Nutrient gradients in Panamanian estuaries : effects of watershed deforestation, rainfall, upwelling, and within-estuary transformations 

    Valiela, Ivan; Giblin, Anne E.; Barth-Jensen, Coralie; Harris, Carolynn; Stone, Thomas A.; Fox, Sophia E.; Crusius, John (Inter-Research, 2013-05-22)
    To test whether deforestation of tropical forests alters coupling of watersheds, estuaries, and coastal waters, we measured nutrients in 8 watershed-estuarine systems on the Pacific coast of Panama where watershed forest ...
  • Obelin mutants as reporters in bioluminescent dual-analyte binding assay 

    Krasitskaya, Vasilisa V.; Kudryavtsev, Alexander N.; Shimomura, Osamu; Frank, Ludmila A. (RSC Publishing, 2012-11-29)
    Two obelin mutants distinctly different in the color of bioluminescence were successfully applied to simultaneous detection of two analytes in a single well. The flash-type signals were triggered by single injection of ...
  • Objective indicators of pasture degradation from spectral mixture analysis of Landsat imagery 

    Davidson, Eric A.; Asner, Gregory P.; Stone, Thomas A.; Neill, Christopher; Figueiredo, Ricardo O. (American Geophysical Union, 2008-07-23)
    Degradation of cattle pastures is a management concern that influences future land use in Amazonia. However, “degradation” is poorly defined and has different meanings for ranchers, ecologists, and policy makers. Here we ...
  • The ocean sampling day consortium 

    Kopf, Anna; Bicak, Mesude; Kottmann, Renzo; Schnetzer, Julia; Kostadinov, Ivaylo; Lehmann, Katja; Fernandez-Guerra, Antonio; Jeanthon, Christian; Rahav, Eyal; Ullrich, Matthias; Wichels, Antje; Gerdts, Gunnar; Polymenakou, Paraskevi; Kotoulas, Giorgos; Siam, Rania; Abdallah, Rehab Z.; Sonnenschein, Eva C.; Cariou, Thierry; O’Gara, Fergal; Jackson, Stephen; Orlic, Sandi; Steinke, Michael; Busch, Julia; Duarte, Bernardo; Cacador, Isabel; Canning-Clode, Joao; Bobrova, Oleksandra; Marteinsson, Viggo; Reynisson, Eyjolfur; Loureiro, Clara Magalhaes; Luna, Gian Marco; Quero, Grazia Marina; Loscher, Carolin R.; Kremp, Anke; DeLorenzo, Marie E.; Øvreås, Lise; Tolman, Jennifer; LaRoche, Julie; Penna, Antonella; Frischer, Marc; Davis, Timothy; Katherine, Barker; Meyer, Christopher P.; Ramos, Sandra; Magalhaes, Catarina; Jude-Lemeilleur, Florence; Aguirre-Macedo, Ma Leopoldina; Wang, Shiao; Poulton, Nicole; Jones, Scott; Collin, Rachel; Fuhrman, Jed A.; Conan, Pascal; Alonso, Cecilia; Stambler, Noga; Goodwin, Kelly; Yakimov, Michael M.; Baltar, Federico; Bodrossy, Levente; Van De Kamp, Jodie; Frampton, Dion M. F.; Ostrowski, Martin; Van Ruth, Paul; Malthouse, Paul; Claus, Simon; Deneudt, Klaas; Mortelmans, Jonas; Pitois, Sophie; Wallom, David; Salter, Ian; Costa, Rodrigo; Schroeder, Declan C.; Kandil, Mahrous M.; Amaral, Valentina; Biancalana, Florencia; Santana, Rafael; Pedrotti, Maria Luiza; Yoshida, Takashi; Ogata, Hiroyuki; Ingleton, Tim; Munnik, Kate; Rodriguez-Ezpeleta, Naiara; Berteaux-Lecellier, Veronique; Wecker, Patricia; Cancio, Ibon; Vaulot, Daniel; Bienhold, Christina; Ghazal, Hassan; Chaouni, Bouchra; Essayeh, Soumya; Ettamimi, Sara; Zaid, El Houcine; Boukhatem, Noureddine; Bouali, Abderrahim; Chahboune, Rajaa; Barrijal, Said; Timinouni, Mohammed; El Otmani, Fatima; Bennani, Mohamed; Mea, Marianna; Todorova, Nadezhda; Karamfilov, Ventzislav; ten Hoopen, Petra; Cochrane, Guy; L’Haridon, Stephane; Bizsel, Kemal Can; Vezzi, Alessandro; Lauro, Federico M.; Martin, Patrick; Jensen, Rachelle M.; Hinks, Jamie; Gebbels, Susan; Rosselli, Riccardo; De Pascale, Fabio; Schiavon, Riccardo; dos Santos, Antonina; Villar, Emilie; Pesant, Stephane; Cataletto, Bruno; Malfatti, Francesca; Edirisinghe, Ranjith; Herrera Silveira, Jorge A.; Barbier, Michele; Turk, Valentina; Tinta, Tinkara; Fuller, Wayne J.; Salihoglu, Ilkay; Serakinci, Nedime; Ergoren, Mahmut Cerkez; Bresnan, Eileen; Iriberri, Juan; Fronth Nyhus, Paul Anders; Bente, Edvardsen; Karlsen, Hans Erik; Golyshin, Peter N.; Gasol, Josep M.; Moncheva, Snejana; Dzhembekova, Nina; Johnson, Zackary; Sinigalliano, Christopher David; Gidley, Maribeth Louise; Zingone, Adriana; Danovaro, Roberto; Tsiamis, George; Clark, Melody S.; Costa, Ana Cristina; El Bour, Monia; Martins, Ana M.; Collins, R. Eric; Ducluzeau, Anne-Lise; Martinez, Jonathan; Costello, Mark J.; Amaral-Zettler, Linda A.; Gilbert, Jack A.; Davies, Neil; Field, Dawn; Glockner, Frank Oliver (BioMed Central, 2015-06-19)
    Ocean Sampling Day was initiated by the EU-funded Micro B3 (Marine Microbial Biodiversity, Bioinformatics, Biotechnology) project to obtain a snapshot of the marine microbial biodiversity and function of the world’s oceans. ...
  • Oceanic heterotrophic bacterial nutrition by semilabile DOM as revealed by data assimilative modeling 

    Luo, Ya-Wei; Friedrichs, Marjorie A. M.; Doney, Scott C.; Church, Matthew J.; Ducklow, Hugh W. (Inter-Research, 2010-08-03)
    Previous studies have focused on the role of labile dissolved organic matter (DOM) (defined as turnover time of ~1 d) in supporting heterotrophic bacterial production, but have mostly neglected semilabile DOM (defined as ...
  • Odorant specificity of three oscillations and the DC signal in the turtle olfactory bulb 

    Lam, Ying-Wan; Cohen, Lawrence B.; Zochowski, Michal R. (2002-11-16)
    The odour-induced population response in the in vivo turtle (Terepene sp.) olfactory bulb consists of three oscillatory components (rostral, middle and caudal) that ride on top of a DC signal. In an initial step to determine ...
  • Oligotyping : differentiating between closely related microbial taxa using 16S rRNA gene data 

    Eren, A. Murat; Maignien, Lois; Sul, Woo Jun; Murphy, Leslie G.; Grim, Sharon L.; Morrison, Hilary G.; Sogin, Mitchell L. (John Wiley & Sons, 2013-10-23)
    Bacteria comprise the most diverse domain of life on Earth, where they occupy nearly every possible ecological niche and play key roles in biological and chemical processes. Studying the composition and ecology of bacterial ...
  • Oligotyping reveals community level habitat selection within the genus Vibrio 

    Schmidt, Victor T.; Reveillaud, Julie; Zettler, Erik R.; Mincer, Tracy J.; Murphy, Leslie G.; Amaral-Zettler, Linda A. (Frontiers Media, 2014-11-13)
    The genus Vibrio is a metabolically diverse group of facultative anaerobic bacteria, common in aquatic environments and marine hosts. The genus contains several species of importance to human health and aquaculture, including ...
  • On the gating mechanisms of the light-dependent conductance in Pecten hyperpolarizing photoreceptors : does light remove inactivation in voltage-dependent K channels? 

    Gomez, Maria del Pilar; Nasi, Enrico (Rockefeller University Press, 2005-04-11)
    The hyperpolarizing receptor potential of ciliary photoreceptors of scallop and other mollusks is mediated by a cGMP-activated K conductance; these cells also express a transient potassium current triggered by depolarization. ...