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Sediment yields climate record for past half-million years

COLUMBUS, Ohio Researchers here have used sediment from the deep ocean bottom to reconstruct a record of ancient climate that dates back more than the last half-million years. The record, trapped within the top 20 meters (65.6 feet) of a 400-meter (1,312-foot) sediment core drilled in 2005 in ...

Scientific evidence of health problems from past contamination of drinking water at Camp Lejeune is limited and unlikely to be resolved with further study

WASHINGTON -- Evidence exists that people who lived or worked at Camp Lejeune Marine Base in North Carolina between the 1950s and 1985 were exposed to the industrial solvents tricholorethylene (TCE) or perchloroethylene (PCE) in their water supply, but strong scientific evidence is not available t...

Bullies have harassed 14 percent of workers over past 6 months

Although it is a relatively widespread phenomenon, the experts have still not been able to come up with an all-encompassing and precise definition of workplace abuse or bullying. Basing their work on previous literature, David Gonzlez, of the High Court of Justice of Madrid and Jos Lus Graa, of th...

Cantabrian cornice has experienced seven cooling and warming phases over past 41,000 years

In 1996, an international team of scientists led by the University of Zaragoza (UNIZAR) started to carry out a paleontological survey in the cave of El Mirn. Since then they have focused on analysing the fossil remains of the bones and teeth of small vertebrates that lived in the Cantabrian region...

Scientists find formula to uncover our planet's past and help predict its future

Studies of climate evolution and the ecology of past-times are often hampered by lost information lost variables needed to complete the picture have been long thought untraceable but scientists have created a formula which will fill in the gaps of our knowledge and will help predict the future. ...

Swine flu genes dissimilar to past pandemics

Some genetic markers of influenza infection severity have been identified from past outbreaks. Researchers have failed to find most of these markers, described in the open access journal BMC Microbiology , in samples of the current swine-flu strain. Jonathan Allen and Tom Slezak from Lawrence ...

Remembrance of things past influences how female field crickets select mates

RIVERSIDE, Calif. UC Riverside biologists researching the behavior of field crickets have found for the first time that female crickets remember attractive males based on the latter's song, and use this information when choosing mates. The researchers found that female crickets compare the inf...

3 prominent Cell Press journals named among the 100 most influential journals in past 100 years

CAMBRIDGE, Mass., USA (April 6, 2009) Cell Press, an imprint of Elsevier, announced today that its flagship journal, Cell , as well as Current Biology and The American Journal of Human Genetics , were voted among the Special Library Association's (SLA) Top 100 Journals in Biology and Medicine...

Three prominent Cell Press journals named among the 100 most influential journals in past 100 years

CAMBRIDGE, Mass., USA (April 6, 2009) Cell Press, an imprint of Elsevier, announced today that its flagship journal, Cell , as well as Current Biology and The American Journal of Human Genetics , were voted among the Special Library Association's (SLA) Top 100 Journals in Biology and Medicine...

Great Basin's Bear Lake reveals records of past climate

Boulder, CO, USA The Geological Society of America presents a new Special Paper, Paleoenvironments of Bear Lake, Utah and Idaho, and Its Catchment . This volume is the culmination of more than a decade of coordinated investigations aimed at a holistic understanding of the long-lived Bear Lake, w...

Gene's past could improve the future of rice

WEST LAFAYETTE, Ind. - In an effort to improve rice varieties, a Purdue University researcher was part of a team that traced the evolutionary history of domesticated rice by using a process that focuses on one gene. Scott A. Jackson, a professor of agronomy, said studying the gene that decides ...

Over 1,000 species discovered in the Greater Mekong in past decade

WASHINGTON, DC, December 15, 2008 -- A rat thought extinct for 11 million years and a hot-pink, cyanide-producing dragon millipede are among a thousand new species discovered in the Greater Mekong Region of Southeast Asia in the last decade, according to a new report launched by World Wildlife Fun...

Study suggests past climate changes may have promoted the formation of new species in the Amazon

AUSTIN, TEXASThe results of a new study suggest that past climate changes and sea level fluctuations may have promoted the formation of new species in the Amazon region of South America. Today, the Amazon basin is home to the richest diversity of life on earth, yet the reasons why this came to...

Dust in West up 500 percent in past 2 centuries, says CU-Boulder study

The West has become 500 percent dustier in the past two centuries due to westward U.S. expansion and accompanying human activity beginning in the 1800s, according to a new study led by the University of Colorado at Boulder. Sediment records from dust blown into alpine lakes in southwest Colorad...

Stanford researchers say living corals thousands of years old hold clues to past climate changes

Using radiocarbon dating and samples of deep-sea corals snipped from the floor of the Pacific Ocean by a submersible, researchers from Stanford and Lawrence Livermore National Laboratory have discovered that deep-sea corals growing off Hawaii are much older than previously thoughtsome as old as 4,...

European lead in reading past climates from ice cores

Climate change is a reality today, but how can we find out about the future dangers it poses" What we really need is a full record of the Earths climate for several hundred thousand years, complete with samples of air from different epochs that can be taken to the lab for analysis. Incredibly, thi...

Shades of 1918? New study compares avian flu with a notorious killer from the past

In the waning months of the First World War, a lethal virus known as the Spanish flu (influenza A, subtype H1N1), swept the United States, Europe and Asia in three convulsive waves. The year was 1918. The ensuing pandemic claimed up to 100 million victims, most of whom succumbed to severe respirat...

New giant clam species offers window into human past

Researchers report the discovery of the first new living species of giant clam in two decades, according to a report to be published online on August 28th in Current Biology , a Cell Press publication. While fossil evidence reveals that the new species, called Tridacna costata , once accounted f...

Unravelling the Northwest's Viking past

The blood of the Vikings is still coursing through the veins of men living in the North West of England according to a new study which has been just published. Focusing on the Wirral in Merseyside and West Lancashire the study of 100 men, whose surnames were in existence as far back as medieva...

Fuel cells help make noisy, hot generators a thing of the past

Two core technologies developed at the Department of Energy's Pacific Northwest National Laboratory - a fuel desulfurization system and a fuel reforming system - were instrumental in the demonstration of an electric power system operating on JP-8, a fuel commonly used in military operations. P...

Chronic pain up almost 40 percent among US workers in past decade

Persistent, chronic pain has risen dramatically among full-time U.S. workers in the past 10 years, but workers today opt to go to their jobs rather than call in sick, leading to a growing trend of presenteeism ?a negative impact on work despite being physically present at the job. These data, relea...

Slipping past the blood brain barrier: Research shows potential treatment for brain cancer

A compound that kills cancer can sneak past the blood brain barrier, which protects the brain from foreign substances, to do its work in fighting a particularly invasive brain cancer, according to a new Saint Louis University animal study published in the Proceedings of the National Academy of Scie...

Fragile US vaccine system needs improvement despite dramatic gains in health over past century

A comprehensive system of vaccine development in the U.S. resulted in a reduction of 87 to more than 99 percent in illness from ten vaccine-preventable diseases during the twentieth century. These dramatic successes should not be taken for granted, however, as the vaccine system now faces numerous ...

AGU journal highlights -- Aug. 6, 2009

... Climate Change assessment. Title: Uncertainties in climate responses to past land cover change: First results from the LUCID intercomparison study Au...surface. Dubbed "global dimming," this phenomenon has been countered in the past few decades by "global brightening" as pollution control efforts have met w...

Climate change poker: The barriers which are preventing a global agreement

...less, however, of the perspective from which one frames the discussions, success in Copenhagen and beyond will depend on parties' ability to negotiate past the tripping points [] by finding ways to match barriers with bargaining chips in envisioning how the details of any future agreement can be hammered ...

UBC researchers find first-ever 'wanderlust gene' in tiny bony fish

...ree to 10 centimetres, stickleback fish originated in the ocean but began populating freshwater lakes and streams following the last ice age. Over the past 15,000 years, freshwater sticklebacks have lost their bony lateral plates, or "armour," in these new environments. Scientists have identified a mutant...

Sustainable agriculture at the ESA Annual Meeting

...logical and chemical differences between annual wheat fields and perennial grass fields in Kansas. The fields had each been harvested annually for the past 75 years. In each test, the researchers found perennial fields to be healthier and more sustainable ecosystems. In the perennial fields, the plants...

Fossil plants bring Wilf distinguished speaker honor

...colleges and universities. Wilf is a paleobotanist with broad interests in the evolution of plants and terrestrial ecosystems including response to past climate change and extinction. He is interested in questions that test and provide deep-time context to modern observations of climate change, biodive...

August 2009 Geology and GSA Today media highlights

...eral calcite, deposited in pairs each year for the past 9000 years. The amount of the mineral calcite in t... documenting the pattern of El Nio events over the past 5000 years, which suggest that such events have be...e the warmest period in Earth's history within the past 25 million years, saw a major shift in climate fro...

Global curbs on overfishing are beginning to work

...nd Eastern Scalefish and Shark Fishery. She says a combination of management measures has been adopted in Australia's commonwealth fisheries in the past decade to reduce pressures on fishery ecosystems. These intensive efforts involved cooperation between fishery scientists, managers and industry. M...

Iron isotopes as a tool in oceanography

... iron reduction is thought to be one of the earliest metabolic pathways on Earth , thus sedimentary iron isotopes may also be useful in reconstructing past iron cycling in the ancient ocean. Pore-fluid iron isotope measurements have so far been restricted to the continental shelves where the supply of ...

Rodent size linked to human population and climate change

... You probably hadn't noticed -- but the head shape and overall size of rodents has been changing over the past century. A University of Illinois at Chicago ecologist has tied these changes to human population density and climate change. The finding is report...

Douglas-fir, geoducks make strange bedfellows in studying climate change

...e instrument measurements. "Each species brings its own 'perspective' of past climate, such that their combination provides a more accurate account," Bla... study. Any methodology that improves scientists' ability to estimate their past variability is met with interest in the research community. This new study ...

Little-known protein found to be key player

...t Rice University. "In fact, that's exactly what I told (co-author) Andrea Daga when we first spoke about the idea a year ago." McNew has spent the past 15 years studying SNARE proteins, a specialized family of proteins that carries out membrane fusion. It's a vital process that happens thousands of ti...

New computer simulation helps explain folding in important cellular protein

...ncorrectly, bad things can happen, and in humans misfolded-protein disorders include Alzheimer's and Parkinson's diseases. Scientists have for the past three decades tried to understand what makes proteins fold into functional units and why it happens, and several breakthroughs have occurred through c...

Jet-propelled imaging for an ultrafast light source

...o crystallize it's virtually impossible to obtain crystals large enough to use in today's light sources. Ultrafast, ultrabright x-rays offer a way past this dilemma. The idea is that a quick pulse of tightly focused x-rays can be diffracted from a microcrystal or even a single protein or virus in solu...

Stem cell research: From molecular physiology to therapeutic applications

...possible future directions to meet the challenges of iPS cells for clinical applications[5]. Stem cell research has made significant progress in the past decade. Some therapeutic applications are coming closer to being on the market, but it is still hard to predict if and when stem cell therapy will rep...

Maternal, paternal genes' tug-of-war may last well into childhood

...f maternal origin tend to have the opposite effect. This new work suggests maternal and paternal genes continue to engage in internal genetic conflict past childbirth. "This analysis suggests that human life history, and especially humans' unusual extended childhood, may reflect a compromise between wh...

Smaller than expected, but severe, dead zone in Gulf of Mexico

...sent a trend and in no way diminishes the need for a harder look at efforts to reduce nutrient runoff." The average size of the dead zone over the past five years, including this cruise, is now 6,000 square miles. The interagency Gulf of Mexico/Mississippi River Watershed Nutrient Task Force has a goa...

Silicon with afterburners: Process developed at Rice could be boon to electronics manufacturer

...d on an integrated circuit doubles about every two years. But even Moore has said the law cannot be sustained indefinitely. The challenge is to get past the limits of doping, a process that has been essential to creating the silicon substrate that is at the heart of all modern integrated circuits, said...
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