late 2 6

Tag: "late" at biology news

How ancient whales lost their legs, got sleek and conquered the oceans

...the limbs and that these changes happened sometime late in development, during the fetal period. However, the actual loss of the hind limb occurred much further along in the evolutionary process, when a drastic change occurred to inactivate a gene essential for limb development. This gene - called Sonic ...

The molecular mechanism of a diabetes vaccine revealed

...r scientists participating in this study were: the late Prof. Ofer Lider, Dr. LioraCahalon, postdoctoral fellow Guy Tal, and Raanan Margalit. ...

UCLA scientists strengthen case for life more than 3.8 billion years ago

...eam and two of the original authors will report in late July that the evidence is stronger than ever. Craig E. Manning, lead author of the new study and a professor of geology and geochemistry in the UCLA Department of Earth and Space Sciences, painstakingly mapped an area on Akilia Island in West Green...

MIT 'seeing machine' offers hope to blind

...sor in the Program in Media Arts and Sciences; the late Steve Benton, an acclaimed optical physicist and MIT professor; and former MIT affiliate James Cain. She has also worked with dozens of MIT graduate students and undergraduates, including Sylvia Gonzalez (S.B. 2003) and Shima Rayej (S.B. 2004), who...

NASA technology helping injured US troops

...ddard Space Flight Center in Greenbelt, Md. The late James Kerley created and patented the technology, consisting of short segments of flexible cable that connect to hardware, all of which allows joint-like, multidirectional movement and shock absorption. Allen Crane and Wayne Eklund teamed with Kerley...

Device effective in zapping the pain out of migraines

...will lead to a throbbing headache. However, in the late 1990s it was instead suggested that neuronal electrical hyper excitability resulted in a throbbing headache. This new understanding of the migraine mechanism has assisted with the development of the TMS device. ...

Insect predation sheds light on food web recovery after the dinosaur extinction

... sites, 4 from latest Cretaceous, 9 from early and late Paleocene and 1 from early Eocene rocks in Wyoming, Colorado, Montana and North Dakota. Insects eat leaves in many different ways, including chewing, mining, galling, and piercing and sucking; their diverse feeding marks preserve well in the rock rec...

Malaria, potato famine pathogen share surprising trait

... Phytophthora infestans, the microbe that triggers late potato blight in vegetables including potatoes, soybeans and tomatoes. "It sounds crazy, but it's not totally ridiculous to consider such a drug," said Kamoun, who is an expert on the Phytophthora group of pathogens. He conducted the study with lead...

Widespread elephant slaughter discovered in Chad

...tside the park through the wet season that ends in late September. They hope to raise funds and awareness to control poaching in coming years with aerial patrols as well as to significantly increase ground security and information gathering. ...

Afghanistan to protect wildlife and wild lands

...o described the giant sheep in his writings in the late 13th Century. Other mammals known to occur in Afghanistan include the ibex, the Persian leopard, gazelles, and the elusive snow leopard. Specifically, five areas being considered by this project for protected area status include the Pamir-I-Buzurg, ...

The loss of a protein favors lung tumor growth

...due to the fact that it is generally detected at a late stage when the disease is nearly incurable. Therefore it is necessary to develop new strategies that permit the detection of tumors of smaller size, biomarkers that make early detection possible, as well as a greater understanding of the alterations ...

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...iving tissues became commercially available in the late 1990s. That prompted von Andrian to embark on a project to use the technology to study the immune system. He set up his lab at the CBR Institute and developed a strain of mouse that has fluorescent T-cells. "We are among a handful of labs which sta...

Life, the remake

...meij's view contrasts with that put forward by the late Stephen Jay Gould and others, who argued that the history of life is so dependent on improbable events and includes so many possible paths that the chances of repetition are vanishingly small. Vermeij argues that some innovations, such as photosynthe...

Crucial site for endangered frogs and birds saved

... fine example of international collaboration." 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 of the crisis, and in less than a month, ABC and CI had secured the $130,000 necessary fo...

Pesticides in the nation's streams and ground water

...k exceedences in urban streams were least frequent late in the study. A case study of diazinon shows declining concentrations in several urban streams in the Northeast during 1998-2004. In agricultural streams, the pesticides chlorpyrifos, azinphos-methyl, p,p'-DDE, and alachlor were among those most o...

'Biobullets' fight harmful mussels

...on from Eastern Europe into the Great Lakes in the late 1980s, zebra mussels have become notorious aquatic pests, fouling water intake pipes at hydroelectric stations, nuclear power plants and industrial facilities. In addition, zebra mussels can anchor themselves to other mollusks, making it impossible f...

Vital ocean prey play active role in environment

...ey drift with pack ice. After they metamorphose in late winter and early spring, the juveniles move with the currents back to inshore waters. In summer, the juveniles are found inshore of the adults. The life cycle thus keeps krill in younger stages separate from adults, which reduces competition for food...

Gene variation increases SIDS risk in African Americans

...e, used to treat patients with arrhythmias, blocks late re-openings of sodium channels at low levels that do not interfere with normal function. Goldstein and colleagues found that the drug restored normal function in cells with two copies of the Y1103 channels even under acid conditions. Although, th...

Can dogs smell cancer?

...ability can distinguish people with both early and late stage lung and breast cancers from healthy controls. The research, which was performed in California, was recently documented by the BBC in the United Kingdom, and is soon to be aired in the United States. Other scientific studies have documented t...

Not just the birds

... the islands. Arctic foxes were introduced in the late 1800's to maintain the North Pacific fur trade, and later removed in an attempt to return the islands to their more natural states. Most of the islands are now fox-free, but the effects of their presence are still visible; birds have been slow to re...

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