Results 81 to 90 of about 191,263 (242)

Magnetic lipase B from Candida antarctica (CALB) biocatalyst for integrated valorization of tilapia by‐products and biodiesel biorefining

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract The immobilization of lipase B from Candida antarctica (CALB) on an amino‐epoxy functionalized magnetic support (Fe3O4‐PEI‐DGEBA) resulted in a highly stable and efficient biocatalyst for biofuel production from tilapia oil. The synthesized support was characterized using scanning electron microscopy, transmission electron microscopy, X‐ray ...
Rafael Leandro Fernandes Melo, Francisco Simão Neto, Bruno Caio Chaves Fernandes, Paulo Gonçalves de Sousa Junior, Patrick da Silva Sousa, Tiago Melo Freire, Raniere Dantas Valença, Frederico Ribeiro do Carmo, Marcos Reinaldo da Silva, Leonardo Farias Serafim, João Maria Soares, Pierre Basílio Almeida Fechine, José Cleiton Sousa dos Santos   +12 more
wiley   +1 more source

Lateral flexure of Erebus Ice Tongue due to ocean current forcing and fast ice coupling

Journal of Glaciology
Ice tongues are unconfined by land on their lateral margins and are sensitive to external forcing from the ocean. They are found sporadically around the Antarctic coast but are common in the western Ross Sea.
Rodrigo Gomez-Fell, Wolfgang Rack, Oliver J. Marsh, Heather Purdie   +3 more
doaj   +1 more source

Spatial variability of climate and past atmospheric circulation patterns from central West Antarctic glaciochemistry [PDF]

, 1999
Atmospheric circulation patterns and the spatial variability of atmospheric chemistry and moisture transport in central West Antarctica are investigated using new 40 year long (1954–1994 A.D.) glaciochemical and accumulation rate records developed from ...
Mayewski, Paul A., Pittalwala, Iqbal I., Reusch, David B., Twickler, Mark S., Whitlow, Sallie I.   +4 more
core   +3 more sources

Tidal influence on Rutford Ice Stream, West Antarctica: observations of surface flow and basal processes from closely-spaced GPS and passive seismic stations [PDF]

, 2008
High-resolution surface velocity measurements and passive seismic observations from Rutford Ice Stream, West Antarctica, 40 km upstream from the grounding line are presented.
A.E. Behar, A.M. Smith, Doake, Doake, Frolich, G. Aðalgeirsdóttir, K. Makinson, K.W. Nicholls, M.A. King, Pugh, Rignot, T. Murray   +11 more
core   +2 more sources

Extent, characteristics and policy applications of Key Biodiversity Areas

Biological Reviews, EarlyView.
ABSTRACT A global standard for the identification of Key Biodiversity Areas (KBAs) was published 10 years ago to provide a unified set of criteria for identifying ‘sites of significance for the global persistence of biodiversity’. We review the initiative's origins, the KBA identification process, characteristics of the current network, threats, policy
Stuart H. M. Butchart, Olivia Crowe, Tom Scott, Andrew J. Plumptre, Megan Eldred, Ellen McKee, Zoltan Waliczky, Ibrahim Al Hasani, Adrián B. Azpiroz, Daniele Baisero, Fred Barasa, Alison E. Beresford, Bezeng S. Bezeng, Charlotte Boyd, Thomas M. Brooks, Graeme Buchanan, Gill Bunting, Sofia Capellan, Neil Cox, Tim R. B. Davenport, Tammy E. Davies, Gina Della Togna, Wendy Elliott, Matt Foster, Jo Gilbert, Jonathan M. Handley, Diego Juffe‐Bignoli, Victoria R. Jones, Naomi Kingston, Jeannot Kivono, John Lamoreux, Penny F. Langhammer, James Lewis, Bruce Liggitt, Daniel Marnewick, Paul Matiku, Erin McCreless, Rachel A. Neugarten, Catherine Numa, Mark O'Brien, Madhu Rao, Ciara Raudsepp‐Hearne, Justina C. Ray, Samridhi Rijal, Jon Paul Rodríguez, Jurgis Sapijanskas, Wes Sechrest, Martin Sneary, Andrew Snyder, Konstantina Spiliopoulou, Thomas Starnes, Cecilia Tobar, Gautam Surya, Marcelo F. Tognelli, Andrew W. Tordoff, Maria G. Toscano, Yongyut Trisurat, Amy Upgren   +57 more
wiley   +1 more source

Influence of sea surface temperature in the tropics on the Antarctic sea ice under global warming

Лëд и снег, 2019
Sea ice fields in the Antarctic, in contrast to the Arctic ones, did not show a reduction in observed global warming, whereas the global climate models indicate its certain decrease.
G. V. Alekseev, N. I. Glok, A. E. Vyasilova, N. E. Ivanov, N. E. Kharlanenkova, A. V. Smirnov   +5 more
doaj   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

Biological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief, Sandra Bouwhuis, Anja Globig, Anne Günther, Wouter Courtens   +4 more
wiley   +1 more source

Trade‐offs in avian parental care: a review of theory and meta‐analysis of brood size manipulations

Biological Reviews, EarlyView.
ABSTRACT The selective forces shaping parental care have been studied for over 50 years. While theoretical and experimental work has yielded qualitative progress, the large body of empirical work testing predictions about parental investment based on life‐history trade‐offs has yet to be synthesized.
Rebekah A. McKinnon, Malgorzata Lagisz, Sheeraja Sridharan, David F. Westneat, Kimberley J. Mathot   +4 more
wiley   +1 more source

Temporal and spatial variation in active layer depth in the McMurdo Sound Region, Antarctica [PDF]

, 2010
A soil climate monitoring network, consisting of seven automated weather stations, was established between 1999 and 2003, ranging from Minna Bluff to Granite Harbour and from near sea level to about 1700m on the edge of the polar plateau.
Adlam, Leah Seree, Balks, Megan R., Campbell, David I., Seybold, Cathy A.   +3 more
core   +2 more sources

Energetic and Environmental Constraints on the Community Structure of Benthic Microbial Mats in Lake Fryxell, Antarctica. [PDF]

, 2020
Ecological communities are regulated by the flow of energy through environments. Energy flow is typically limited by access to photosynthetically active radiation (PAR) and oxygen concentration (O2).
Dillon, Megan L, Doran, Peter T, Eisen, Jonathan A, Hawes, Ian, Jungblut, Anne D, Mackey, Tyler J, Sumner, Dawn Y   +6 more
core   +3 more sources