Results 81 to 90 of about 127,254 (301)

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source

A review of data on abundance, trends in abundance, habitat use and diet of ice-breeding seals in the Southern Ocean [PDF]

, 2012
The development of models of marine ecosystems in the Southern Ocean is becoming increasingly important as a means of understanding and managing impacts such as exploitation and climate change.
Bengston, J., Bester, M., Blix, A.S., Bornemann, H., Boveng, P., Cameron, M., Forcada, J., Laake, J., Nordøy, E., Plötz, J., Rogers, T., Southwell, C., Southwell, D., Steinhage, D., Stewart, B.S., Trathan, P.   +15 more
core  

Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope

Animal Research and One Health, EarlyView.
FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad, Hubdar Ali Kolachi, Jesse Oluwaseun Ayantoye, Xiaomeng Zhang, Muhammad Usman Mehmood, Rajilan Hilali Shanga, Pengcheng Wan, Xueming Zhao   +7 more
wiley   +1 more source

Measurements of the ion concentrations and conductivity over the Arabian Sea during the ARMEX

, 2005
Measurements of the small-, intermediate-, and large-ion concentrations and the atmospheric electric conductivity of both polarities have been made over the Arabian Sea on four cruises of ORV Sagarkanya during the Arabian Sea Monsoon Experiment (ARMEX ...
Arnold, Blanchard, Blanchard, Chapman, Cobb, de Reus, Deshpande, Deshpande, Devendraa Siingh, Dhanorkar, Dhanorkar, Gathman, Gathman, Gathman, Gopalakrishnan, Harrison, Hoppel, Horrak, Kamra, Kamra, Kulmala, Kulmala, Kulmala, Laakso, Laakso, Laakso, Lovejoy, Misaki, Misaki, Misaki, Morita, Morita, Nadykto, Pawar, Ruttenberg, Tammet, Woolf, Yu, Yu, Yue   +39 more
core   +1 more source

Engineered Bacterial Ligand From Streptococcus pneumoniae on Macroporous Resins for Selective Affinity Capture of Secretory IgA

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Secretory immunoglobulin A (sIgA) is a promising emerging biopharmaceutical candidate, but it currently lacks a standardized platform for purification. To address this, a novel affinity chromatography resin was developed by immobilizing protein variants of the Streptococcus pneumoniae surface protein, SpsA, as an affinity ligand.
David Scheich, Andres Männik, Oliver Meikar, Joan Teyra, Laura Kibena, Sebastiaan Eeltink, Rainer Hahn, Alois Jungbauer, Nico Lingg   +8 more
wiley   +1 more source

Research progress of anti-icing/deicing technologies for polar ships and offshore platforms

Zhongguo Jianchuan Yanjiu, 2017
The polar regions present adverse circumstances of high humidity and strong air-sea exchange. As such, the surfaces of ships and platforms (oil exploiting and drilling platforms) serving in polar regions can easily be frozen by ice accretion, which not ...
XIE Qiang, CHEN Hailong, ZHANG Jifeng
doaj   +1 more source

Persistent organic pollutants in the Atlantic and southern oceans and oceanic atmosphere [PDF]

, 2017
Persistent organic pollutants (POPs) continue to cycle through the atmosphere and hydrosphere despite banned or severely restricted usages. Global scale analyses of POPs are challenging, but knowledge of the current distribution of these compounds is ...
Cochran, Michele A., Dickhut, Rebecca M., Falconer, Renee L., Kylin, Henrik, Luek, Jenna L.   +4 more
core   +1 more source

Impacts of local human activities on the Antarctic environment [PDF]

, 2008
We review the scientific literature, especially from the past decade, on the impacts of human activities on the Antarctic environment. A range of impacts has been identified at a variety of spatial and temporal scales.
Agnew, Agnew, Ainley, Baker, Ballance, Bargagli, Barrera-Oro, Brown, C.A. Moreno, Chen, Clarke, Clarke, Constable, Constable, Constable, Convey, Convey, Convey, Convey, Cooney, Croxall, Croxall, D.G. Ainley, de Leeuw, de Poorter, Delord, DeVries, Duhamel, Edwards, Fraser, Frenot, Gon, Greenslade, Greenslade, Greenslade, Gremmen, Gröndahl, Hansom, Hee, Hemmings, Hofman, Holmes, Hughes, Huiskes, I. Snape, J. Scott, Jones, Jouventin, K.A. Hughes, Kennicutt, Kerry, Knox, Kock, Kock, Kock, Kohnen, Laws, McDonald, Moreno, Morris, Muller-Schwarze, Naveen, Naveen, Nicol, Ohtani, Olech, Otley, P. Convey, Pauly, Pauly, Peter, Pfeiffer, Pfeiffer, Rounsevell, S. Pfeiffer, Salwicka, Sjoling, Sladen, Smith, Smith, Snape, Snape, Summerson, T. Tin, Tejedo, Thor, Trathan, Weimerskirch, Wheeler, Willock, Woehler, Z.L. Fleming   +91 more
core   +2 more sources

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

Brochure [PDF]

, 2014
publishedVersio
Gunslay, Nicolas, Heikkilä, Markku, Koivurova, Timo, Stępień, Adam   +3 more
core