Time running out for South Asian vultures, ecologists warn
...the lead author of the new paper, said: "Our study indicates that diclofenac poisoning is the main cause - possibly the only cause - of these vulture declines, which are among the most rapid ever recorded for any wild bird. Time is running out if we are to save these species. Governments, drug companies, vets,......of head lice diverged 1.18 million years ago. That indicates each of the two kinds of head lice infested a different species of early human as the human species diverged. Genes from both types of head lice are found on people today, suggesting that after infesting Homo erectus or another archaic human s...How roots control plant shoots
...ays. The new study reveals part of the answer, and indicates a previously unknown plant hormone a chemical probably made from carotenoids is involved. Carotenoids include well-known substances such as beta carotene in carrots and tomatoes, lycopene in tomatoes, lutein in daffodil flowers and the substance ...Good news: As you age, leg blood vessels adapt so you can still exercise without fainting
...n for their reduced level of cardiac output. This indicates that the balance between vasodilation and vasoconstriction in exercising muscle may change with age. Proctor noted that his laboratory group "is one of the first to systematically study the impact of aging on blood flow to exercisi...Environmental exposures before and after birth can harm children's lungs
...ool of Public Health, New York, NY. "This study indicates that the combination of exposure to combustion by-products in the womb and to second-hand smoke during infancy can cause significantly more respiratory problems than either exposure on its own," added Dr. Frederica Perera, the study's Principal Inves...Acoustics meeting in San Diego
...t the meeting. The first number of the paper code indicates the day of the talk, with "1" denoting Monday (November 15),"2" denoting Tuesday (November 16), and so on, up to "5" for Friday (November 19). POTENTIAL EXPLANATION FOR MARINE MAMMAL STRAGRONDINGS The mysterious beachings of whales following...Study in Royal Society journals presents evidence for inherited factors in homosexuality
...ia 8, PADOVA, 351000, Italy Sperm whale behaviour indicates the use of rapid echolocation click buzzes 'creaks' in prey capture by Dr PJO Miller, Dr MP Johnson and Dr PL Tyack Sperm whales produce long series of clicks interspersed with buzzes called "creaks" while foraging at depth. Using sound, depth and ...S1P1 essential for tumor growth and is blocked by RNA interference
...ed and tumor growth suppressed in vivo. This study indicates both that S1P1 is vital for blood vessel growth in tumors and that RNA interference technology may be of great use in anticancer therapies. TITLE: Requirement for sphingosine 1phosphate receptor-1 in tumor angiogenesis demonstrated by in vivo RNA in...Normal cells in tumors may aid cancer growth
...inical cancer genetics program. "But our study indicates that genetic damage occurs in stromal tumors cells...lost from 15 different chromosomes. This indicates that more DNA regions may be lost in a tumor's stromal cells than in its cancer cells. Furthermore, ...Researchers redrawing the Tree of Life
...ith water lilies coming directly after that. "This indicates a major shift from a shrub of terrestrial habitat to aquatic habitat," Hilu said. "That's a major change in structure and ecology." Hilu had been researching flowering plants throughout his career with previous NSF grants to Virginia Tech. He als...Study confirms link between head and neck cancer and common Asian nut
...noma was not significant. The birth cohort effect indicates factors that may have different exposure levels in different birth cohorts and require prolonged time to manifest their effects on the body. Period effects, on the other hand, usually reflect factors that affect all age groups equally at a given per...Mitochondrial mutation linked to blood pressure and cholesterol problems
...d high triglyceride level, and the current finding indicates that these other components of metabolic syndrome may also linked to mitochondrial disfunction. The clear correlation of mutation and disorder in this study was made possible by the evaluation of 142 people in four generations of an affected fami...Newly discovered protein suggests novel tumorigenic pathway
...reakthrough. Maehama explained that this discovery indicates that cells with impaired PICT-1 function may become cancerous because of the resulting instability in PTEN. This would represent a new tumorigenic pathway that is not due to a defective PTEN gene but rather a loss of PTEN function caused by PICT-1. ...Brain differences in adolescents, psychopaths, lend to their impulsive, risk-taking behavior
...An animal's entering the exposed areas of the maze indicates lower anxiety, while extension of the rat's head i...ctually entering it (stretched attenuated posture) indicates assessment of risk. The researchers found that both male and female pubescent rats were mo...Is the zebra fish leading us to new therapies?
...uncontrolled branches and divergent patterns. This indicates that the receptor and the signal molecule are of crucial importance in guiding new blood vessels. Scientists can now predict with great certainty that nerves and blood vessels use the same 'guides' along their routes to their targets. A finding that ...Diabetes drug works by enhancing fat cell energy production
...and increasing white fat cell tissue energy, which indicates that increased lipid utilization by fat cells improves insulin sensitivity and alters whole-body energy homeostasis....JCI table of contents November 1, 2004
...and increasing white fat cell tissue energy, which indicates that increased lipid utilization by fat cells improves insulin sensitivity and alters whole-body energy homeostasis. TITLE: Mitochondrial remodeling in adipose tissue associated with obesity and treatment with rosiglitazone AUTHOR CONTACT: Silvia Cor...Deciphering the Arctic Ocean climate puzzle
...midt-Str. 30 Bremen, Germany Early data analysis indicates that the upper 160 meters of sediment retrieved represent a continuous record of the past ~15 million years. The cores suggest that ice-covered conditions extend that far back in time. Details of the ice cover, timing, and dominance over this time pe...Researchers uncover how infections combat plant immune responses
...g the CTV suppressor genes," Ding said. "Our work indicates for the first time that viruses may have to produce more than one suppressor of RNA silencing to overcome the antiviral immunity," he added. "Secondly, one of the CTV suppressors identified is mechanistically novel as it inhibits spread of RNA silenc...Four new vertebrate fossil finds in Ischigualasto, Argentina
...g in Denver on Thursday, November 4. Most evidence indicates that the transition at the end of the Triassic, 205 million years ago, was a period of widespread extinction, leading to the ascendancy of dinosaurs during the Jurassic. The new Argentinean finds tell a different story: Vertebrate animals in the Uppe...