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Tag: "late" at biology news

Beauty and the brain

...n-averageness effect" ?was first discovered in the late 1800s and was perhaps most dramatically illustrated by Judith Langlois' lab, at the University of Texas at Austin, in the 1990s, when people scored computer composites of 16 faces higher than any of the individual component faces (i.e. the very faces...

Embryo tests give parents the choice

...s screening for diseases that may not strike until late in life, if at all. Non-medical sex selection accounted for 9 per cent of PGD tests conducted in the US in 2005, while 28 per cent of the clinics surveyed are now offering PGD to detect a propensity for adult-onset diseases such as Alzheimer's, Hunti...

Mayo Clinic Cancer Center: Harnessing the measles virus to attack cancer

...othing was done to study this phenomenon until the late 1990s, when under the direction of Stephen Russell, M.D., Ph.D., Mayo Clinic Cancer Center's Molecular Medicine Program began looking into it, resulting in the current study and other related projects. "Mayo is the perfect place to develop a therap...

Control measures fail to stop spread of new H5N1 virus

... new variant of the bird flu virus H5N1 emerged in late 2005 and replaced most of the previous variants across a large part of southern China, despite an ongoing program to vaccinate poultry, according to researchers at the University of Hong Kong in collaboration with scientists at St. Jude Children's Re...

Study challenges myth that sex late in pregnancy hastens birth

...e acknowledged that women who are more comfortable late in pregnancy may be more likely to engage in sexual activity, and that women who experience abdominal discomfort or pelvic pressure ?possible signs of earlier delivery ?won't be inclined to want to have sex. Schaffir also said that because of the hig...

Why mice don't get cancer of the retina

...xpressed first and Rb and 130 expressed during the late stages of development. The authors show that, in mutant mouse embryos that do not express Rb at all, the levels of p107 are much higher than in wild-type embryos at the same stage in development. The reverse situation is observed in mutant embryos th...

Important gene controlling tree growth and development found

...o stop growing and form buds sufficiently early in late summer. This means that trees originating from dif...lso shown that the poplar FT gene is turned off in late summer just before the trees stop growing and set bud. By changing the activity of the FT gene the s...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

...ta site as one of the most crucial to protect. In late December, Fundación ProAves learned of the impending sale of plots from the site for construction of vacation homes. It alerted the Alliance for Zero Extinction, and in less than a month, ABC and CI had secured the funding necessary for Fundación Pro...

More than drought affecting wheat yields

...r advice they can give to producers is to plant as late as possible to reduce chances of severe wheat streak problems again. "We're trying to develop some cultivars that can be resistant to wheat streak mosaic and could be planted early and then grazed out," Rush said."They would be popular in this regio...

Where have all the butterflies gone?

...nt insects from cold and drying. But the snow came late in the season, meaning that many of the overwintering insects may have been killed off early. We will not know about the fate of those butterflies until July, Shapiro said. ...

Potato blight pathogenicity explained by genome plasticity

...enomes to adapt to their environments. The potato late blight pathogen, known to scientists as Phytophthora infestans , is a fungus-like organism that was responsible for the Irish Potato Famine of the 1840s and continues to cause devastating agricultural losses worldwide today. Infected plants are cha...

Fertility hope as study shows eggs survive in older ovaries

.... In humans, the eggs are believed to die off from late in foetal life, after birth and into adult life. When egg numbers decline towards zero females can no longer reproduce ?resulting in the condition we know as menopause. Professor Findlay, Dr Kerr and their colleagues have found that the total number...

Salk scientists get to the root of plant cell fate

...he actual polarity in the embryo isn't fixed until late in development, and that offers us an opportunity to change the fate of the plant structure." ...

Bone marrow may restore cells lost in vision diseases

...wing new cells to replace dead ones. Then, in the late 1990s, when scientists began to report findings of brain cell growth in humans and monkeys later in life, focus turned toward understanding the mechanisms to regenerate cells in the brain. Now, UF researchers believe it may be possible to also grow ...

Large dinosaurs were extremely hot in their day, UF study finds

...the sun's heat to regulate temperature. But in the late 1960s, the notion emerged that dinosaurs, like mammals and birds, might have been warm-blooded, or endotherms, with relatively constant, high body temperatures that were internally regulated. The new findings show that even though dinosaurs were co...

Global warming may have damaged coral reefs forever

...lihood of recovery. "Unfortunately it may be too late to save many of these reefs but this research shows the importance of countries tackling greenhouse gas emissions and trying to reduce global warming and its effect on some of the world's finest and most diverse wildlife." ...

Acidity in the brain could hold the key to stroke treatment

...often only enable one to see damage once it is too late to intervene." NMR will be used to measure the rate at which hydrogen ions are exchanged between water and proteins in the brain. Acidity causes this rate to increase, changing the NMR signal of water. ...

Bird brains shrink from exposure to contaminants

... "These residues have been persisting since the late 1960s--that's what is really disturbing," said Dr. Andrew Iwaniuk, a post-doctoral research fellow in the U of A's Department of Psychology. "It has been years since it has been used and still has this effect." The new research, published in Behavi...

Global study shows all tobacco bad for the heart

...d pay attention to the message that it's never too late to quit. This is an important study documenting the powerful and persistent dangers of tobacco use worldwide," said Dr. Peter Liu, scientific director for CIHR's Institute of Circulatory and Respiratory Health (ICRH). "Canadians can be proud that w...

Fish virus in Northeast spreading to other fish species

...mples are from the fish that have been dying since late May and early June in Lake Erie, Lake Ontario and the St. Lawrence River. Last week, an estimated 1,000 dead fish washed up on the shores of Lake Ontario in just one morning. Viral hemorrhagic septicemia virus (VHSV) was detected and confirmed for...

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