The timing of the early diversification of modern sharks and batoids (Neoselachii) is crucial to understand their early evolutionary history.
However, different concepts of this timing exist, which are related to discrepancies in taxonomic and phylogenetic interpretations. Statistic analyses performed in this study show that a burst in neoselachian diversity occurred very early ca.
180 Myr ago [...]

Bats use echolocation to navigate and find prey at night. The width of the echolocation sound beam determines how broad an angle bats perceive.
Using multi-microphone recordings we determined for the first time beam width for a bat, Myotis daubentonii, flying in the wild. The bats emitted highly directional narrow sound beams in the wild, but [...]

Animals require a ‘balanced’ diet because, as a group, they lack key metabolic capabilities, including the capacity to synthesise essential amino acids and vitamins.
Some animals have escaped this metabolic limitation by forming symbioses with microorganisms that have a wider metabolic repertoire.
We have quantified the nutritional importance of symbiotic microorganisms in one animal, the pea aphid.
The [...]

Nursing is a profession focused on advocacy in the care of individuals, families, and communities in attaining, maintaining, and recovering optimal health and functioning. Modern definitions of nursing describe it as a science and an art that focuses on promoting quality of life as defined by populations, communities, families, and individuals, throughout their life experiences [...]

Nurses care for individuals who are healthy and ill, of all ages and cultural backgrounds, and who have physical, emotional, psychological, intellectual, social, and spiritual needs. The profession combines physical science, social science, nursing theory, and technology in caring for those individuals.
The success of a nursing website put together by Queensland University of Technology’s School [...]

The authority for the practice of nursing is based upon a social contract that delineates professional rights and responsibilities as well as mechanisms for public accountability. In almost all countries, nursing practice is defined and governed by law, and entrance to the profession is regulated at national or state level.
Almost a third of registered aged [...]

Nursing is a profession focused on advocacy in the care of individuals, families, and communities in attaining, maintaining, and recovering optimal health and functioning. Modern definitions of nursing describe it as a science and an art that focuses on promoting quality of life as defined by populations, communities, families, and individuals, throughout their life experiences [...]

To help prevent the establishment and amplification of Bovine Spongiform Encephalophathy (BSE) through feed in the United States, the Food and Drug Administration (FDA) implemented a final rule that prohibits the use of most mammalian protein in feeds for ruminant animals. This rule, Title 21 Part 589.2000 of the Code of Federal Regulations, here called [...]

For the seventh straight year, nurses are the winner in the Gallup Poll’s annual “honesty and professional ethics” survey. A stunning 84 percent of Americans rated nurses honesty and ethics standards as either “high” or “very high,” easily topping the survey.
Leaders of the nation’s largest organization of registered nurses, the California Nurses Association/National Nurses Organizing [...]

Nursing is the second fastest growing occupation in the US according to the Department of Labor. Applications to nursing programs are up but the country cannot train all those interested in becoming RNs. In 2005 147,000 qualified applicants were turned away from America ’s nursing schools. That’s because there is a shortage of faculty. 50 [...]