Results 41 to 50 of about 1,591,136 (306)
Copepods in the Northern Hemisphere [PDF]
Nature, 1925 IT has long been recognised that the distribution of freshwater copepods has been profoundly influenced by the incidence of the glacial period, since the lake-districts which they inhabit are to a large extent postglacial catchment basins. It so happens that there is a general correspondence between the three leading sub-orders and the three principal ...
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Mountain uplift and the glaciation of North America – a sensitivity study [PDF]
, 2010 The Miocene (24 to 5 million years ago) wasa period of relative global warmth compared to the Quaternary(2 million years ago to present; e.g. Zachos et al.,2001) and was characterised by the intermittent glaciationof Antarctica only.
Lunt, D.J. +11 more
core +2 more sources
Western Hemisphere Drug Policy Commission [website]
, 2021 Website of the Western Hemisphere Drug Policy Commission (WHDPC), charged to "evaluate a range of US counternarcotics programs in the Americas and then make recommendations to improve them" -- including a recording and transcript of the group's hearing ...
United States. Western Hemisphere Drug Policy Commission.
core
Numerical simulations of oceanic oxygen cycling in the FAMOUS Earth-System model: FAMOUS-ES, version 1.0 [PDF]
Geoscientific Model Development, 2014 Addition and validation of an oxygen cycle to the ocean component of the FAMOUS climate model are described. At the surface, FAMOUS overestimates northern hemisphere oxygen concentrations whereas, at depth, the southern hemisphere values are too low ...
J. H. T. Williams +3 more
doaj +1 more source
A tropical mechanism for Northern Hemisphere deglaciation [PDF]
Geochemistry, Geophysics, Geosystems, 2003 We investigate the role of the tropics in the melting and reforming of the Laurentide ice sheet on glacial timescales using an atmospheric general circulation model. It is found that warming of tropical sea surface temperatures (SSTs) from glacial boundary conditions, as observed at the end of glacial periods, causes a large increase in summer ...
Rodgers, K. B. +4 more
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Mesoscale temperature fluctuations in the Southern Hemisphere stratosphere [PDF]
Atmospheric Chemistry and Physics, 2008 Isentrope surfaces in the Southern Hemisphere stratosphere reveal that air parcels undergo mesoscale temperature fluctuations that depend on latitude and season.
B. L. Gary
doaj
FEBS Open Bio, EarlyView.Glioblastoma cells express calcitonin receptor variants (CT receptor isoforms) that may help them survive stress. Using qPCR, transcript‐specific long‐read nanopore sequencing, immunofluorescence co‐localisation and comparative sequence analysis, this study identifies a novel alternatively spliced CALCR transcript that encodes the CTb receptor isoform ...
Pragya Gupta +7 more
wiley +1 more source
Change in Earth’s solar climate over the period from 1900 to 2100
Solar-Terrestrial PhysicsThe paper presents the results of the analysis of changes in Earth’s solar climate over the period from 1900 to 2100. It has been determined that the annual meridional gradient of irradiation intensity from 1900 to 2100 and latitudinal differences in the
Fedorov Valery, Frolov Denis
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Pre-LGM Northern Hemisphere ice sheet topography [PDF]
Climate of the Past, 2013 We here reconstruct the paleotopography of Northern Hemisphere ice sheets during the glacial maxima of marine isotope stages (MIS) 5b and 4.We employ a combined approach, blending geologically based reconstruction and numerical modeling, to arrive at ...
J. Kleman +4 more
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The oldest mysticete in the Northern Hemisphere
Current BiologyExtant baleen whales (Mysticeti) uniquely use keratinous baleen for filter-feeding and lack dentition, but the fossil record clearly shows that "toothed" baleen whales first appeared in the Late Eocene.1 Globally, only two Eocene mysticetes have been found, and both are from the Southern Hemisphere: Mystacodon selenensis from Peru, 36.4 mega-annum (Ma)
Cheng-Hsiu Tsai +2 more
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