Results 271 to 280 of about 4,477,433 (314)

Academia—An endangered species

American Journal of Obstetrics and Gynecology, 1987
With the use of these logarithmic formulas, maximum errors in weeks were: for foot, + 0.39 at 9 weeks and - 0.59 at 20 weeks; for leg, - 0.62 at 19 weeks and - 1.09 at 20 weeks; and for arm, - 0.71 at 19 weeks and - 1.25 at 20 weeks.
openaire   +3 more sources

Endangered species and the law [PDF]

Nature, 1992
Taxonomy does not deserve its reputation as an arcane science. As the following examples from ungulate taxonomy show, classification has important implications for conservation legislation.
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Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)

, 2016
Elephants, whales, rhinos, tigers... mention CITES, and these and many other species listed in Appendix I immediately come to mind, often with the suggestion of poaching or illegal trade.
Burkina Faso, Equatorial Guinea, S. Lanka., V. Nam, Cites Secretariat   +4 more
semanticscholar   +1 more source

Review of psittacine beak and feather disease and its effect on Australian endangered species.

Australian Veterinary Journal, 2015
BACKGROUND Since it was first described in the early 1980s, psittacine beak and feather disease (PBFD) has become recognised as the dominant viral pathogen of psittacine birds in Australia.
S. Raidal, S. Sarker, A. Peters
semanticscholar   +1 more source

Mediastinoscopy: An Endangered Species?

Journal of Clinical Oncology, 2005
Accurate staging is a critical part of the management of newly diagnosed non–small-cell lung cancer (NSCLC), and of the decision to offer patients induction therapy. During the last decade, the introduction into clinical practice of positron emission tomography (PET) and of endoscopic ultrasound biopsy techniques has again raised the question of when ...
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Another Endangered Species*

The Journal of Bone & Joint Surgery, 1999
Environmental issues continue to occupy a good portion of the news and editorial thinking of contemporary society. No matter what we do, we are asked to think about the environmental impact of our actions. As we build, raze, and change the world around us, we worry about destruction of habitats, conservation of resources, and endangerment of species ...
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The Economics of Endangered Species

Annual Review of Resource Economics, 2009
Because habitat conversion is the greatest threat to species, this article focuses on economic incentives for private land users to protect habitat. Habitat protection policies that fail to account for private incentives often have unintended negative consequences. Private incentives for habitat protection depend on many factors: whether landowners are
Robert Innes, George Frisvold
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Redefining baselines in endangered species recovery

, 2015
Baselines rooted in historical records or concepts of previous conditions are necessarily used to identify and generate recovery goals for endangered species.
D. Jachowski, D. Kesler, D. A. Steen, J. Walters   +3 more
semanticscholar   +1 more source

An Endangered Species in the Stomach

Scientific American, 2005
This article examines whether the decline of Helicobacter pylori, a bacterium living in the human stomach since time immemorial, is good or bad for public health. Helicobacter pylori is one of humanity's oldest and closest companions, and yet it took scientists more than a century to recognize it.
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Mediastinoscopy: An Endangered Species?

Archivos de Bronconeumología ((English Edition)), 2007
This editorial carries the same title as an article recently published by Rusch 1 on mediastinal staging in lung cancer. In that article, the well-known thoracic surgeon presented the promising advances made in the assessment of the mediastinum thanks to the development of new technology that she believed would limit the future of mediastinoscopy.
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