Results 61 to 70 of about 85,724 (312)

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

Drivers of hemispheric differences in return dates of mid-latitude stratospheric ozone to historical levels [PDF]

Atmospheric Chemistry and Physics, 2013
Chemistry-climate models (CCMs) project an earlier return of northern mid-latitude total column ozone to 1980 values compared to the southern mid-latitudes.
H. Garny, G. E. Bodeker, D. Smale, M. Dameris, V. Grewe   +4 more
doaj   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source

The stratospheric Brewer–Dobson circulation under different phases of the Stratospheric Polar Vortex Oscillation combined with different phases of the Quasi-Biennial Oscillation

Earth and Planetary Physics
Using long-term Whole Atmosphere Community Climate Model version 5 (WACCM5) simulations initialized with the climatology around the year 2000, we studied the anomalous distribution of planetary wave and gravity wave fluxes during distinct phases of the ...
ZiXuan Yu, ChunHua Shi, Jian Rao, YueYue Yu   +3 more
doaj   +1 more source

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

Biological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen, Mohamed Khalil Meliane, Zachery B. Holmes, Karl E. Miller, William J. Barichivich, Emilie Dedeban, Alex Furst, Miranda Imeri, Peyton E. Niebanck, Samantha Nunn, Kailee Pearson, Nicole Rita, Brier Ryver, Dakotah Shaffer, Susan C. Walls, E. Hance Ellington   +15 more
wiley   +1 more source

Comparing forward and inverse models to estimate the seasonal variation of hemisphere-integrated fluxes of carbonyl sulfide [PDF]

Atmospheric Chemistry and Physics, 2002
A simple inverse model is proposed to deduce hemisphere-integrated COS flux based on published time series of total column COS. The global atmosphere is divided into two boxes representing the Northern and Southern Hemispheres, and the total column ...
A. J. Kettle, U. Kuhn, M. von Hobe, J. Kesselmeier, P. S. Liss, M. O. Andreae   +5 more
doaj  

The spatial distribution of hydrogen ions at topside ionosphere in local daytime

Terrestrial, Atmospheric and Oceanic Sciences, 2017
Using DEMETER and DMSP satellite data, the spatial distribution of hydrogen ion (H+) in local daytime has been compared and analyzed. At 840 km of DMSP height, the seasonal variations of H+ density is basically symmetric, with similar density values near
Xuhui Shen Xuemin Zhang
doaj   +1 more source

Extending the SBUV polar mesospheric cloud data record with the OMPS NP [PDF]

Atmospheric Chemistry and Physics, 2019
We have utilized Solar Backscatter Ultraviolet (SBUV) instrument measurements of atmospheric radiance to create a 40-year record of polar mesospheric cloud (PMC) behavior.
M. T. DeLand, G. E. Thomas
doaj   +1 more source

An Arbovirus Cline across the Northern Hemisphere

Virology, 1995
The mode and tempo of arbovirus evolution and dispersal can help to explain the dynamics of pandemics, viral outbreaks, and emerging viruses. By comparing nucleotide and deduced amino acid sequences of their envelope proteins, we describe the continuous distribution of the tick-borne encephalitis (TBE) complex viruses, the most important flaviviruses ...
de A. Zanotto, P.M., Gao, G.F., Gritsun, T., Marin, M.S., Jiang, W.R., Venugopal, K., Reid, H.W., Gould, E.A.   +7 more
openaire   +2 more sources

Fresh air in the 21st century? [PDF]

, 2003
Ozone is an air quality problem today for much of the world's population. Regions can exceed the ozone air quality standards (AQS) through a combination of local emissions, meteorology favoring pollution episodes, and the clean-air baseline levels of ...
Berntsen, T., Dentener, F, van Weele, Michiel, Lawrence, M, Pitari, Giovanni, Johnson, M., Brasseur, G, Horowitz, L., von Kuhlmann, R, Gauss, Michael, Grenfell, L., Stevenson, David, Pitari, G., Sundet, Jostein, Rogers, Helen, Pyle, John, Jacob, D., von Kuhlmann, R., Isaksen, Ivar, Brasseur, Guy, Bey, I., Hauglustaine, D., Grenfell, L, Horowitz, Larry, Wild, Oliver, Johnson, M, Law, K, Lawrence, M., Dentener, F., van Weele, M., Lawrence, Mark, Lawrence, M. G., Muller, J. F., Prather, Michael, Muller, J F, Law, K., Pyle, J, van Weele, M, Wild, O, Pitari, G, Prather, M. J., Jacob, D, Stevenson, D., Dentener, Frank, al, et, Rogers, H., Brasseur, G. ; https://orcid.org/, Berntsen, T, Isaksen, I., Wild, O., Jacob, Daniel, Prather, M., Johnson, Matthew, Hauglustaine, D, Horowitz, L, Derwent, R, Mickley, L, Bey, Isabelle, Isaksen, I, Muller, Jean-Francois, Stevenson, D, Stevenson, David; id_orcid, Müller, J.-F., Grenfell, Lee, Rogers, H, Müller, J., Pyle, J., Mickley, L., Sundet, J., Derwent, Richard, Brasseur, Guy P., Law, Kathy S., Hauglustaine, Didier, Prather, M, Derwent, R., Mickley, Loretta, Brasseur, G., Bey, I, von Kuhlmann, Rolf, Gauss, M., Berntsen, Terje, Gauss, M, Sundet, J   +82 more
core   +1 more source