Tag: "agu" at biology news

Missing genes may help explain why plague bacteria are so deadly

LIVERMORE, Calif. What makes the germ that causes plague so fearsomely lethal, while a close relative only produces digestive disorders and is rarely fatal?... The answer may be in its genes or rather, its lack of them.... By comparing the genome of the plague bacillus, Yersinia pestis, with the almost-identical DNA sequence of Yersinia pseudotuberculosis, an international team led by researc...

British scientists exclude 'maverick' colleagues, says report

Scientists in Britain tend to exclude controversial 'maverick' colleagues from their community to ensure they do not gain scientific legitimacy, new research has shown....... A Cardiff University study has found that British scientists' attitudes differ considerably from those of their counterparts in Sweden, when managing dissent. ...... The research, by Lena Eriksson, a Swedish researcher in t...

AGU journal highlights - 29 July 2004

Contents ...I. Highlights, including authors and their institutions ...II. Ordering information for science writers ...... ...I. Highlights, including authors and their institutions ......The following highlights summarize research papers in Geophysical Research...Letters (GL). The papers related to these Highlights are printed in the next paper...issue of the journal following their electronic p...

Colleagues to recognize research leadership in cancer detection, prevention and treatment

Continuing a 45-year-old tradition of honoring outstanding achievement in cancer research, the American Association for Cancer Research currently is accepting nominations for its series of annual awards. Scientists advancing the understanding and eradication of cancer through basic research, clinical care, therapeutics and prevention are eligible. Winners will help the AACR fulfill its mission...

Mother lode of jaguars discovered in Bolivia park

NEW YORK (May 11, 2004) Bolivia's sprawling Kaa-Iya Gran Chaco National Park, known for some of the world's highest densities of ticks, may now lay claim to another superlative: more jaguars than any protected area on earth. According to a recent study by the New York-based Wildlife Conservation Society (WCS) and other groups, published in the Journal of Zoology, as many as 1,000 of these elusi...

Bacteria live in the esophagus!

The esophagus isn't merely a tube for food traveling from the mouth to the stomach, it also provides an environment for bacteria to live, according to a new study by NYU School of Medicine scientists that overturns the general belief that the esophagus is free of bacteria. ...... "People thought that the esophagus wasn't hospitable to bacteria," says Martin J. Blaser, M.D., Frederick King P...

Scripps scientists say genetic mutation doesn't protect against HIV and plague

A group of scientists at The Scripps Research Institute have provided strong evidence that a popular hypothesis concerning the origins of a genetic mutation common among Caucasians of Northern European descent that protects against human immunodeficiency virus (HIV) is wrong.... ...The hypothesis suggests that the mutation conferred resistance against bubonic plague in the Middle Ages, much as i...

University of Colorado archaeologist, colleagues hot on the trail of ancient Persian warships

An international research team including a University of Colorado at Boulder professor has mounted a deep-water search off the northern coast of Greece in search of a fleet of Persian warships presumed lost in a massive ocean storm in 492 B.C. ......The armada of warships is believed to have been sent by Persian King Darius to invade Greece, according to ancient historical accounts. The research...

AGU journal highlights - 6 January 2004

The following highlights summarize research papers in Earth...Interactions (EI), Geophysical Research Letters (GL), and Journal of...Geophysical Research-Oceans (JC). The papers related to these...Highlights are printed in the next paper issue of the journal...following their electronic publication.......... ...... A new method to monitor sea surface temperatures and height in the...North Pacific...

AVANT to develop an oral anthrax and plague vaccine for U.S. Department of Defense

NEEDHAM, MA (January 22, 2003): AVANT Immunotherapeutics, Inc. (Nasdaq: AVAN) today announced it has been awarded a subcontract to develop for the U.S. Department of Defense an oral combination vaccine against anthrax and plague using AVANT's proprietary vaccine technologies. Under the agreement, AVANT may receive in excess of $8 million over a two-year period, covering vaccine development thr...

INEEL geoscientist to present NAPL contaminant modeling advance at AGU Meeting

DOE News Release......Embargoed for release...December 6, 2002......INEEL geoscientist to present NAPL contaminant modeling advance at AGU Meeting......By modifying the mathematical theory describing the relationship between permeability, saturation, and pressure in a multiple fluid system, researchers can now more accurately predict the movement of non-aqueous phase liquid (NAPL) contaminants in...

Wildlife researcher captures jaguars with camera

Blacksburg, Va., Nov. 22, 2002 - Have you ever wondered how wildlife photographers are able to catch that indescribable image of a wild animal swiftly and methodically attacking prey with just its claws? Marcella Kelly, assistant wildlife professor in Virginia Tech's College of Natural Resources, does just that for jaguars of the Chiquibul Forest Reserve at Las Cuevas Research Station in Belize,...

European seal plague may threaten population survival

Scientists from Sweden and the USA report in an upcoming issue of the journal Ecology Letters that the 2002 outbreak of phocine distemper virus, or PDV, in European harbour seals may reduce the population by more than half and that future outbreaks with similar characteristics could significantly increase the risk of population declines. Their findings are the first epidemiological data reporte...

UT Southwestern researcher, colleagues report drug therapy eases chronic depression

DALLAS Oct. 10, 2002 - A team of scientists representing 12 collaborating health-care centers, including UT Southwestern Medical Center at Dallas, have found that antidepressant therapy specifically sertaline hydrochloride, or Zoloft - can enhance the lives of many chronically depressed patients. The team's findings also showed that discontinuing treatment to patients courts relapse and loss of...

US Women scientists from Latin America to encourage colleagues from south

Washington, D.C.- 12 August 2002Araceli Espinosa-Jeffrey, Nora Sabelli, and Maria Josefina Coloma have much more in common than their birthplaces in Latin countries and the career paths that have led them to become top scientists in the United States.... ...As young women, the three had realized that the way they looked at the world would take them far from home, challenge them to overcome tradit...

The contraceptive plague

AFTER more than a decade of trying, Australian researchers have created a highly infectious virus that could wipe out the country's rabbit pests by making them sterile....... The team, at the Pest Animal Control Cooperative Research Centre (PAC CRC) in Canberra, has already applied for permission to carry out field trials with a similar virus that makes European mice infertile. Advocates of this...

First ever census of jaguars completed

(NEW YORK July 25, 2002) Using a methodology developed to count tigers half a world away, a team of scientists from the Bronx Zoo-based Wildlife Conservation Society has completed the first-ever census of one of the world's most elusive big cats the jaguar. The scientists presented their findings at the annual meeting of the Society of Conservation Biology, which met in Canterbury, England las...

Single gene leap led to flea-borne transmission of plague bacterium

A single gene change in a relatively benign recent ancestor of the bacterium that causes bubonic plague played a key role in the evolution of the deadly disease, researchers report in the April 26 issue of the journal Science. By acquiring this gene, the bacterium gradually changed from a germ that causes a mild human stomach illness acquired via contaminated food or water to the flea-borne agen...

UCLA scientists, colleagues substantiate biological origin of earliest fossils

UCLA paleobiologist J. William Schopf and colleagues have substantiated the biological origin of the earliest known cellular fossils, which are 3.5 billion years old. The research is published in the March 7 issue of the journal Nature. ......Schopf and a team of scientists at the University of Alabama, Birmingham have devised a new technique using a unique laser-Raman imaging system that enables...

Wild jaguar photographed in Arizona

BRONX, NY - Scientists working for the Wildlife Conservation Society (WCS) in Arizona have captured an image of a jaguar, a rare visitor to the United States. The picture, taken by a camera trap placed near the U.S.-Mexican border, is the first image of this largest of New World felines in the U.S. since August, 1996. ... ..."This photo is a significant development for the conservation of jaguars...

Jaguar conservation spotty

New research shows that the jaguar is in trouble in two-thirds of its...historic range. Part of the problem is that jaguars live in 18 countries...and there is no coordinated plan for conserving them -- such...wide-ranging species need conservation plans that transcend political...boundaries....... "Biological conservation plans often respect political boundaries more...than ecological ones," sa...

New study shows vagus nerve stimulation effective for treatment of children with refractory epilepsy

HOUSTON, TEXAS November 12, 2001 New data show that vagus nerve stimulation (VNS) is associated with a significant reduction in seizure frequency and marked improvements in quality of life among children with treatment-resistant epilepsy, according to a study published this week in the Journal of Child Neurology. ... ...The study evaluated the effectiveness, tolerability and safety of VNS thera...

UI researchers and colleagues identify genetic changes in bacterial biofilms

IOWA CITY, Iowa -- Bacteria can exist in a free-floating (planktonic) form or as a biofilm where the cells form organized communities encased in a self-produced slime. One important difference between these two bacterial lifestyles is that biofilms are highly resistant to antibiotics. This poses serious health problems for individuals with biofilm infections, such as Pseudomonas aeruginosa (P. a...

Plant diseases plague world trade

St. Paul, MN (August 13, 2001) -- Long before mad cow and foot-and-mouth disease, countries battled invading plant diseases. In fact, so devastating have foreign diseases been to the worlds forests and crop plants that over the years countries have developed strict trade policies regarding everything from plant seeds to potting soil. But some are now arguing that its time for a reevaluation, stat...

Global air pollution monitoring debuts at AGU press briefing, May 30

NASAs Terra spacecraft has produced the most complete view of the worlds air pollution ever assembled. Policymakers and scientists now have, for the first time, a way to identify the major sources of air pollution and closely track where the pollution goes all year round and anywhere on Earth.. The first observations from this unprecedented environmental monitoring capability will be released at...

Glennda Chui and Richard Stone win AGU journalism awards

.WASHINGTON - Two experienced science writers have won the American Geophysical Union's journalism awards for 2001.. .Glennda Chui, science writer for the San Jose Mercury-News, won the David Perlman Award for Excellence in Science WritingNews, for her story, "Acid Mountain," and Richard Stone won the Walter Sullivan award for Excellence in Science WritingFeatures for his freelance article in Sm...

New views of tropical thunderstorms and pollution effects on rainfall presented at AGU meeting

.Scientists have discovered that thunderstorms over tropical lands can act like ocean storms, pollution can inhibit rainfall, and upper level winds may determine the characteristics of thunderstorms. . .Some of these findings give promise to better understanding thunderstorm development, and researchers working with NASAs Tropical Rainfall Measuring Mission (TRMM) satellite will discuss them in...

Faster coagulation rates found in natural systems could impact industrial processing

.Using new ways to analyze and describe the rate at which minute ocean-going groups of bacteria or plankton coagulate, a Penn State engineer has found that large aggregates of these groups collide with and capture additional particles millions of times faster than predicted by existing theories.. . Dr. Bruce E. Logan, the Kappe professor of environmental engineering, says, "Our results have cau...

Study contradicts assumption that ulcer bug has always plagued humans

. The bacterium that causes stomach ulcers might not have been with humans forever, a new study suggests, contradicting a long-held assumption. Comparing pieces of DNA from Helicobacter pylori, scientists discovered that strains from Peru resemble those from Spain and not those from eastern Asia. . . "My favorite interpretation of this finding is that the Spanish brought H. pylori to Peru wh...

Human plague cases increasing in Southwest

. . . Human plague, that dreaded disease of centuries past caused by the .bacterium Yersinia pestis, is on the rise, at least in the southwestern .United States.. . Biologists at the National Science Foundation (NSF)-funded Long-Term .Ecological Research (LTER) site in Sevilleta, New Mexico, have found that .human plague cases in New Mexico occurred more frequently after wetter .th...

AGU names new journalism award for David Perlman

.WASHINGTON -- The American Geophysical Union has established a new journalism award to complement the Walter Sullivan Award, which it has bestowed on science writers since 1989. The new award is named for David Perlman, science editor of the San Francisco Chronicle, in recognition of his distinguished career. Perlman won AGU's Sustained Achievement Award in Science Journalism in 1997.. .Two fac...

Humboldt prize will enable Colorado State chemist to join German colleagues in studying behavior of molecules on cell surfaces

. FORT COLLINS--A Colorado State University researcher will join.colleagues in Germany in using laser microscopy to track protein molecules on.the surface of cells, research that may eventually lead to an understanding of.how the immune system combats disease.. . George Barisas, professor of chemistry and microbiology, has developed.techniques that can follow the movement of p...

AGU 1999 Fall Meeting -- Information for media representatives

. The annual Fall Meeting of the American Geophysical Union takes place from Monday, December 13, through Friday, December 17, at the Moscone Convention Center in San Francisco, California. A special press field trip is planned for Sunday afternoon, December 12 (see Item 5, below).. . Media representatives are encouraged to register in advance, using the form at the end of this message. The...

Advances in engineering heart tissue reported by MIT scientists, colleagues

.Lisa E. Freed clearly remembers her first successful experiment in engineering.heart tissue: the cells she'd "seeded" on a three-dimensional scaffold outside a.living body began beating as one.. . "It was my most awesome laboratory moment ever. No one had ever done.this before," said Dr. Freed, a principal research scientist in the Harvard-MIT.Division of Health Sciences and Technology (...

Bubonic plague kills by cutting off cellular communication

... Bubonic plague kills by cutting off...cellular communication, say U-M scientists. ...One molecule holds the key to plague's lethal effects. ... ...ANN ARBOR --- Yersinia pestis, the deadly bacterium that causes bubonic plague,...kills by cutting off a cell's ability to communicate with other immune system...cells needed to fight off the bacterial invasion. In a study published in the...Sep...

Highlighting USGS Science At AGU

. . .12:15 p.m. - 1:00 p.m. Informal . . .Visit the USGS exhibit booth (319-321) across from the refreshment area and see new...

Intake Of Acetaminophen Increases Risk Of Excessive Anticoagulation In Patients Taking Warfarin

.People who take the anticoagulant drug warfarin are at increased risk of.excessive anticoagulation if they also take large amounts of the pain reliever.acetaminophen, according to a study from the Massachusetts General Hospital.(MGH). Excessive anticoagulation is known to raise the risk of major.hemorrhage. The report appears in the March 4 Journal of the American Medical.Association. . "Whil...
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