Now showing items 48-67 of 1911

  • The ancestral symbiont sensor kinase CSK links photosynthesis with gene expression in chloroplasts. 

    Puthiyaveetil, S; Kavanagh, TA; Cain, P; Sullivan, JA; Newell, CA; Gray, JC; Robinson, C; van der Giezen, M; Rogers, MB; Allen, John F. (2008-07-22)
    We describe a novel, typically prokaryotic, sensor kinase in chloroplasts of green plants. The gene for this chloroplast sensor kinase (CSK) is found in cyanobacteria, prokaryotes from which chloroplasts evolved. The CSK ...
  • Ancient diversification of eukaryotic MCM DNA replication proteins. 

    Aves, Stephen; Richards, Thomas A; Liu, Yuan (BioMed Central, 2009)
    Yeast and animal cells require six mini-chromosome maintenance proteins (Mcm2-7) for pre-replication complex formation, DNA replication initiation and DNA synthesis. These six individual MCM proteins form distinct heterogeneous ...
  • Ancient pre-glacial erosion surfaces preserved beneath the West Antarctic Ice Sheet 

    Rose, K.C.; Ross, N; Jordan, T.A.; Bingham, R.G.; Corr, H.F.J.; Le Brocq, A.M.; Ferraccioli, F; Rippin, D.M.; Siegert, M.J. (European Geosciences Union (EGU) / Copernicus Publications, 2015-02-16)
    present ice-penetrating radar evidence for ancient (pre-glacial) and extensive erosion surfaces preserved beneath the upstream Institute and Möller ice streams, West Antarctica. Radar data reveal a smooth, laterally ...
  • Animal geographies II: methods 

    Buller, HJ (Sage, 2014)
    Animal geographies challenge not only the place and placing of the human and the animal but, critically, the methods we use to engage with both in relation. This second review considers the various methodological implications ...
  • Animal Geographies III: Ethics 

    Buller, HJ (SAGE Publications, 2015-04-19)
    There is no animal geography without ethics. The very coupling of the words gives rise to an ethical endeavor; an acceptance that animals have a geography, a making visible of animals within our human geography and ...
  • Animal minds: from computation to evolution. 

    Thornton, A; Clayton, Nicola S.; Grodzinski, U (Royal Society, 2012-10-05)
    In the great Darwinian struggle for existence, all animals must tackle the problems posed by variable environments, be it finding and processing food, recognizing and attracting potential mates, avoiding predators, ...
  • Animal personality: What are behavioural ecologists measuring? 

    Carter, Alecia J.; Feeney, WE; Marshall, Harry H.; Cowlishaw, Guy; Heinsohn, R (Wiley, 2013-05)
    The discovery that an individual may be constrained, and even behave sub-optimally, because of its personality type has fundamental implications for understanding individual- to group-level processes. Despite recent interest ...
  • Animating the Carbon Cycle 

    Schmitz, OJ; Raymond, PA; Estes, JA; Kurz, WA; Holtgrieve, GW; Ritchie, ME; Schindler, DE; Spivak, AC; Wilson, RW; Bradford, MA; Christensen, V; Deegan, L; Smetacek, V; Vanni, MJ; Wilmers, CC (Springer Verlag, 2013-09-19)
    Understanding the biogeochemical processes regulating carbon cycling is central to mitigating atmospheric CO2 emissions. The role of living organisms has been accounted for, but the focus has traditionally been on contributions ...
  • Annual Variation in Sterol Levels in Leaves of Taraxacum officinale Weber 1 

    Westerman, Lynne; Roddick, James G. (1981-10)
    Sterol levels in dandelion (Taraxacum officinale Weber) leaves were monitored over a period of 19 months. Sitosterol was the most abundant free sterol, followed by stigmasterol, then campesterol. Cholesterol could not be ...
  • Antarctic ice sheet fertilises the Southern Ocean 

    Death, R.; Wadham, J.L.; Monteiro, F.; Le Brocq, A.M.; Tranter, M.; Ridgwell, A.; Dutkiewicz, S.; Raiswell, R. (European Geosciences Union (EGU) / Copernicus Publications, 2014-05-19)
    Southern Ocean (SO) marine primary productivity (PP) is strongly influenced by the availability of iron in surface waters, which is thought to exert a significant control upon atmospheric CO2 concentrations on glacial/interglacial ...
  • Antecedent conditions control carbon loss and downstream water quality from shallow, damaged peatlands. 

    Grand-Clement, Emilie; Luscombe, David J.; Anderson, K; Gatis, Naomi; Benaud, P; Brazier, Richard E. (Elsevier, 2014-09-15)
    Losses of dissolved organic carbon (DOC) from drained peatlands are of concern, due to the effects this has on the delivery of ecosystem services, and especially on the long-term store of carbon and the provision of drinking ...
  • Antecedent conditions control carbon loss and downstream water quality from shallow, damaged peatlands. 

    Grand-Clement, Emilie; Luscombe, David J.; Anderson, K; Gatis, Naomi; Benaud, P; Brazier, Richard E. (Elsevier, 2014-09-15)
    Losses of dissolved organic carbon (DOC) from drained peatlands are of concern, due to the effects this has on the delivery of ecosystem services, and especially on the long-term store of carbon and the provision of drinking ...
  • Anthropogenic noise compromises antipredator behaviour in European eels. 

    Simpson, SD; Purser, J; Radford, AN (Wiley, 2014-08-06)
    Increases in noise-generating human activities since the Industrial Revolution have changed the acoustic landscape of many terrestrial and aquatic ecosystems. Anthropogenic noise is now recognized as a major pollutant of ...
  • Anthropogenic noise increases fish mortality by predation 

    Simpson, SD; Radford, AN; Nedelec, SL; Ferrari, MCO; Chivers, DP; McCormick, MI; Meekan, MG (Nature Publishing Group, 2016-02-05)
    Noise-generating human activities affect hearing, communication and movement in terrestrial and aquatic animals, but direct evidence for impacts on survival is rare. We examined effects of motorboat noise on post-settlement ...
  • Anthropogenic noise playback impairs embryonic development and increases mortality in a marine invertebrate. 

    Nedelec, SL; Radford, AN; Simpson, SD; Nedelec, B; Lecchini, D; Mills, SC (Nature Publishing Group, 2014-07-31)
    Human activities can create noise pollution and there is increasing international concern about how this may impact wildlife. There is evidence that anthropogenic noise may have detrimental effects on behaviour and physiology ...
  • Anthropogenic perturbation of the carbon fluxes from land to ocean 

    Regnier, P; Friedlingstein, P; Ciais, P; Mackenzie, FT; Gruber, N; Janssens, IA; Laruelle, GG; Lauerwald, R; Luyssaert, S; Andersson, AJ; Arndt, S; Arnosti, C; Borges, AV; Dale, AW; Gallego-Sala, Angela V.; Goddéris, Y; Goossens, N; Hartmann, J; Heinze, C; Ilyina, T; Joos, F; Larowe, DE; Leifeld, J; Meysman, FJR; Munhoven, G; Raymond, PA; Spahni, R; Suntharalingam, P; Thullner, M (Nature Publishing Group, 2013-06-09)
    A substantial amount of the atmospheric carbon taken up on land through photosynthesis and chemical weathering is transported laterally along the aquatic continuum from upland terrestrial ecosystems to the ocean. So far, ...
  • Antibiotic cycling versus mixing: the difficulty of using mathematical models to definitively quantify their relative merits. 

    Pena-Miller, R; Beardmore, Robert (American Institute of Mathematical Sciences, 2010-10)
    We ask the question Which antibiotic deployment protocols select best against drug-resistant microbes: mixing or periodic cycling? and demonstrate that the statistical distribution of the performances of both sets of ...
  • Anticipating ubiquitous computing: Logics to forecast technological futures 

    Kinsley, Samuel (Elsevier, 2011-03)
    Visions of the future predict spaces apparently teaming with ever more novel and pervasive technologies. Significant amongst such forecasts is the notion of ‘ubiquitous computing’ (ubicomp), understood as an affordance or ...
  • Antioxidant supplementation during early development reduces parasite load but does not affect sexual ornament expression in adult ring-necked pheasants Phasianus colchicus 

    Orledge, JM; Blount, Jonathan D.; Hoodless, AN; Royle, NJ (Wiley/ British Ecological Society, 2012-03-12)
    1. The ‘parasite-mediated sexual selection’ (PMSS) hypothesis predicts that exaggerated male ornamentation could provide a signal to females of a males ability to resist parasites. Empirical tests of the PMSS have been ...
  • Anxiety, Attentional Control, and Performance Impairment in Penalty Kicks 

    Wilson, Mark R.; Wood, G; Vine, Samuel J. (HUMAN KINETICS PUBL INC, 2009-12)
    The current study sought to test the predictions of attentional control theory (ACT) in a sporting environment. Fourteen experienced footballers took penalty kicks under low- and high-threat counterbalanced conditions while ...