Tag: "shortages" at biology news

Siblicide In Nature: Study Of Galapagos Seabird Finds Death Can Ensure Species Survival

...y engage in siblicidal behavior during severe food shortages when the first-born bird drops below 75 percent of normal body weight. Blue-footed booby chicks were put in masked booby nests and vice versa, to determine whether parents, or offspring, or both, controlled the siblicide. In masked booby chicks rai...

10 Million Report Hunger, Even With Jobs

...t. Most of those in the survey who reported food shortages said the primary reasons were lack of money, food stamps or WIC (the Special Supplemental Nutrition Program for Women, Infants and Children) vouchers; about 9 percent also blamed inadequate transportation. In examining the reports of food shortages,...

Increasing Frequency Of El Nino Takes Toll On Northern Hemisphere's Only Penguins

...n themselves and so abandon their nests. Such food shortages affectfemales more severely because they have less ability to store reserves.The Galapagos penguins are the only ones that molt before breeding. Sometimesthey don't get enough nutrition to sustain them through that physically taxingfeather-shedding p...

Nearly half of Earth's land has been transformed by humans; 50 'dead zones' found in oceans

...ions. Environmental degradation resulting in food shortages lead to civilunrest and migration into neighboring countries," Lubchenco explained. Increasing economic inequities in the world raise a host of new issues,according to the researcher. "Inhabitants of poorer nations are less able tobuy supplies such ...

Consumers, health experts desire benefits of biotech foods and concur with current FDA labeling policy

...take careof the people around the world where food shortages still exist."...

Jefferson scientists develop method to isolate blood stem cells, the lifetime source of all blood cells

...ratory and clinic will someday helpalleviate blood shortages for transfusions and to develop innovative approachesto bone marrow transplants....

Droughts worse than the 1930's likely in the 21st century

...g, extreme climate changes that will provoke water shortages in the future," says Dr. Cumming, who co-authored ...g the past 800 years (with three episodes of water shortages much more severe than the 1930's Dust Bowl). Consequently, development and population growth during ...

Novel resuscitative fluid developed at University of Pittsburgh shows promise in animal studies

... blood supply, Dr. Kameneva noted. While worldwide shortages of donor blood signify the need for an effective blood substitute, researchers caution that more studies are required in larger animals before tests of HemoMax can begin in humans....

Cellular membrane changes associated with acclimation to cold

...at some mammals use during the winter to cope with shortages of food supplies and cold temperatures. When a mammal prepares for hibernation, its body temperature lowers to near-freezing temperature. For brief periods, the hibernating mammal will wake up and re-warm to normal body temperature before descendin...

The role of science in restoring California's water resources

...roduction drops. Fear of additional shortages has led some political leaders to call for increased hydropower production, but Freyberg cautions that state policy makers must weigh the environmental impact of all new water projects. ``Understanding the biological effect of releasing...

New egg-free flu vaccine called promising for those with egg allergy

...s expected to lessen the likelihood of flu vaccine shortages like those in the United States last year. Phase I, II and III clinical trials were done in the United Kingdom, Austria and Poland with more than 2,500 volunteers. They were divided into two age groups: 18-59, and 60 and above. The studies show...

Research on bioengineered crops, global warming and a new flu vaccine will be featured at gathering of world's largest scientific society in San Diego

...an egg-based vaccines and could help avert vaccine shortages during a large flu outbreak. The new vaccine has been tested in 2,500 volunteers and is expected to be available to consumers in Europe as early as next year. (BIOT 42, Monday, April 2, 9:00 a.m.) Risks and benefits of biotech crops - Plant biot...

UCSD researchers decipher molecular "code" capable of controlling plant water loss during droughts

...tant crops that can more effectively survive water shortages by limiting water loss during droughts. "Much of the land used for agriculture is not irrigated because water is either unavailable or too expensive," says Julian I. Schroeder, a professor of biology at UCSD who headed the research team. "So if crop...

Climate change in the USA

...gies to deal with the projected water and nutrient shortages in the Great Plains region over the next century. She will also describe the implications that adaptations to climate changes may have on ecosystems and society in the region. With the prevalence of agriculture and ranching within the Great Plains...

Mercury at bottom of central park lake linked to coal burning in NYC

...specially significant in light of this years power shortages in California and the ensuing controversy over coal-burning power plants. A recent report by the U.S. Environmental Protection Agency predicted that the emission of hazardous air pollutants by coal-fired utilities would increase 10 percent to 30 perc...

Hopkins' emergency extended care unit reduces overcrowding

...ace of a primary care health provider, and nursing shortages and community hospital closings have contributed to the problem. About 55,000 patients visit the Hopkins ED each year. The Hopkins acute care unit, which opened in January, has 14 beds, three treatment rooms, a waiting room and a nurses station and...

Mistrust, religious beliefs hinder blood and organ donation

...nation rates by African-Americans have resulted in shortages of blood supply for illnesses where multiple transfusions result in difficult cross-matching, such as sickle cell disease. For the study, researchers conducted 20-minute telephone interviews with 339 Baltimore residents ages 18 to 75, asking about ...

Songbird population declines linked to acid rain

...s in a number of ways, Hames notes. In particular, shortages of calcium-rich foods, such as snails and snail shells, might be critical at egg-laying time, when calcium demand is highest for female birds, or during the nesting period, when calcium supplements are often provided to growing young. However, low le...

Additive that makes juices 'tart' quadruples yield of essential hemophilia treatment

..., the juice additive, may help alleviate recurring shortages of a protein called Factor VIII, which is importan... glue and sealant." In addition to helping resolve shortages in clotting factor supplies, the researchers also are looking at ways to reduce contamination of tra...

AAAS president calls to restore American health system

...cited soaring health-insurance premiums; personnel shortages in some specialties; the constraints of managed health care; paperwork burdens; and archaic information-management methods. At the same time: "The threat of war, and the imposition of mass casualties from any new acts of terrorism could prove calamit...

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