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Farmers relying on roundup lose some of its benefit

WEST LAFAYETTE, Ind. - Roundup Ready crops have made weed control much easier for farmers, but a new study shows their reliance on the technology may be weakening the herbicide's ability to control weeds.

New alternative to biopsy detects subtle changes in cancer cells, Stanford study shows

STANFORD, Calif. -- A drop of blood or a chunk of tissue smaller than the period at the end of this sentence may one day be all that is necessary to diagnose cancers and assess their response to treatment, say researchers at the Stanford University School of Medicine.

In the ICU, use of benzodiazepines, other factors may predict severity of post-stay depression

Psychiatrists and critical care specialists at Johns Hopkins have begun to tease out what there is about a stay in an intensive care unit (ICU) that leads so many patients to report depression after they go home.

A healthy color

About 80 percent of adults suffer from some form of periodontal, or gum disease, which can result in not just tooth loss, but has also been linked to heart disease, diabetes, blood infection, low birth-weight babies, cancer and most recently, obesity.

Scientists pinpoint the 'edge of space'

Where does space begin? Scientists at the University of Calgary have created a new instrument that is able to track the transition between the relatively gentle winds of Earth's atmosphere and the more violent flows of charged particles in space - flows that can reach speeds well over 1000 km/hr. And they have accomplished this in unprecedented detail.

Stem cell therapy makes cloudy corneas clear, according to Pitt researchers

PITTSBURGH, April 9 - Stem cells collected from human corneas restore transparency and don't trigger a rejection response when injected into eyes that are scarred and hazy, according to experiments conducted in mice by researchers at the University of Pittsburgh School of Medicine. Their study will be published in the journal Stem Cells and appears online today.

Wristbands ease nausea with cancer treatment

Cancer patients who wore acupressure wristbands had much less nausea while receiving radiation treatment, making the bands a safe, low-cost addition to anti-nausea medication, according to a study published in the Journal of Pain and Symptom Management by University of Rochester Medical Center researchers.

High-dose radiation improves lung cancer survival, U-M study finds

ANN ARBOR, Mich. -- Higher doses of radiation combined with chemotherapy improve survival in patients with stage III lung cancer, according to a new study by researchers at the University of Michigan Comprehensive Cancer Center.

Bridging the gap between wireless sensor networks and the scientists who use them

ANN ARBOR, Mich.---A new, simpler programming language for wireless sensor networks is designed for easy use by geologists who might use them to monitor volcanoes and biologists who rely on them to understand birds' nesting behaviors, for example. Researchers at the University of Michigan and Northwestern University have written the language with the novice programmer in mind.

UIC biologists use DNA to study migration of threatened whale sharks

Whale sharks -- giants of the fish world that strike terror only among tiny creatures like the plankton and krill they eat -- are imperiled by over-fishing of the species in parts of its ocean range.

Cigarette smoke may alter immune response in COPD exacerbations

Smoking cigarettes is not only the principle cause of chronic obstructive pulmonary disease (COPD), but it may change the body's immune responses to bacteria that commonly cause exacerbations of the disease, according to new research in a mouse model.

Compendium of pancreatic cancer biomarkers established as strategic approach to early-detection

A cancer scientist from Johns Hopkins has convinced an international group of colleagues to delay their race to find new cancer biomarkers and instead begin a 7,000-hour slog through a compendium of 50,000 scientific articles already published to assemble, decode and analyze the molecules that might herald the furtive presence of pancreatic cancer.

Gaining new insights into mentoring programs for adolescent girls

(Boston) -- A study of a Big Brothers Big Sisters of America formal mentoring program, which matched adolescent girls with women mentors, revealed that strong emotional support and improvement in girls psychosocial functioning from these relationships was a dominant theme coupled with the development of new skills and confidence through collaborations.

Artificial pump effectively backs up failing hearts

Patients with severe heart failure can be bridged to eventual transplant by a new, smaller and lighter implantable heart pump, according to a just-completed study of the device. Results of this third-generation heart assist device were reported at the 58th annual meeting of the American College of Cardiology on March 30.

Naturally fluorescent molecules may serve as cancer biomarker

Excess amounts of a naturally fluorescent molecule found in all living cells could serve as a natural biomarker for cancer, according to bioengineers.



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