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Science News Archive February 2009


Page 9 of 24

Genetic tests may improve dosing of widely used anti-clotting drug

Researchers developed a method to use genetic information to determine optimal doses of warfarin, reducing the risk of adverse effects. The study included data from 4,043 patients worldwide and found that patients on the extreme ends of the dosage range saw significant benefits.

Erosion doubles along Alaska's Arctic coast

Coastal erosion in Alaska's Arctic region has more than doubled to 45 feet per year over a 5-year period. The increased erosion rates are attributed to changing arctic conditions, including declining sea ice extent, rising sea level, and increasing storm power.

Robotic therapy may reduce stroke physical disability years later

A small randomized study found that robotic therapy improved physical ability in stroke patients, with more significant gains in those with lower disability at the start of rehabilitation. The study suggests that robotic therapy may be useful in reducing physical disability years after a stroke.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Genetic information can improve administration of anticoagulant

A study confirms that using genetic information can more accurately estimate warfarin doses, reducing the risk of overdose or underdose. The gene-based dosing algorithm was found to be more effective than traditional clinical formulas in identifying patients at high risk of bleeding or clotting.

Latest issue of FIBER journal focuses on China's apparel industry

The latest issue of FIBER journal focuses on China's maturing apparel industry, highlighting its growth potential and the importance of understanding young Chinese consumers. Experts share best practices and tips for conducting business in China, as well as valuable insights into social responsibility in the industry.

Tuning in on cellular communication in the fruit fly

A team of researchers at Worcester Polytechnic Institute has identified a new component of the bone morphogenetic protein (BMP) pathway, which is essential for proper wing development in fruit flies. The discovery of Kekkon5 reveals its role as an extracellular regulator of BMP signaling.

The liberating effects of losing control

A study by Tufts University psychologists found that mentally depleted individuals were more direct and authentic in conversation with black interviewers, and perceived as less prejudiced. This suggests that relinquishing power over oneself can lead to more harmonious interactions.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

IODP to operate 3 drilling platforms in 2009

The Integrated Ocean Drilling Program (IODP) will conduct scientific ocean drilling operations aboard three platforms in 2009. Scheduled operations include riser drilling, riserless operations, and mission-specific operations to explore climate change, sea level change, and oceanic plateau formation.

Blood pressure compound may benefit brain tumor patients

Researchers found that administering losartan before, during and after radiation therapy prevents or lessens cognitive impairment in rats. The study validates a hypothesis that anti-hypertensive drugs can protect the brain from radiation-induced injury.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

New surgical implant tested at U-Iowa prevents total blindness

A new surgical implant called Retisert has been successfully tested at the University of Iowa to treat sympathetic ophthalmia, a rare eye condition that can lead to complete vision loss. The implant provides slow-release immunosuppression to the affected eye, reducing or eliminating the need for systemic medications.

Investing in personalized medicine will benefit Canada

Canada has a unique opportunity to become an international leader in personalized medicine, driven by advancements in human genome sequencing and genetic research. The country can capitalize on its strengths to provide a model for other nations.

NASA study predicted outbreak of deadly virus

A NASA study successfully predicted the 2006-2007 Rift Valley fever outbreak in northeast Africa using a blend of climate measurements and satellite data. The prediction gave public health officials up to six weeks' notice, allowing them to implement disease mitigation measures and lessen human impact.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Indoor plants can reduce formaldehyde levels

Researchers found that indoor plants can remove up to 80% of formaldehyde from the air within 4 hours. The study also showed that aerial parts of plants absorb more formaldehyde during the day, while roots and soil microorganisms contribute to nighttime absorption.

Detecting disease in greenhouse plants

Researchers used color infrared photography to detect diseases in greenhouse plants, identifying common ailments like sooty mold and powdery mildew through image analysis. The study found that certain diseases can be detected early on by analyzing the ratios of light reflection, with high NIR values indicating healthy vegetation.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Process for expansion and division of heart cells identified

Researchers at the Gladstone Institutes have identified a complex signaling process that governs heart cell expansion and division. The study shows that cardiac fibroblasts send signals to cardiomyocytes to divide or grow, which could lead to regenerative therapies after heart attacks.

Health sciences students open weekly free clinic

The UC Irvine Outreach Clinic offers free primary care, preventive medicine, laboratory testing, medication, and healthcare referral services to individuals with very low incomes. The clinic is the result of a decade-long effort by UCI students to address healthcare needs of underserved populations.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Sweet potato takes a ride on space shuttle

Researchers at the Center for Food and Environmental Systems for Human Exploration of Space successfully grew sweet potato cuttings in microgravity, showing that they can regenerate roots. The study found significant differences in root growth development between microgravity and ground-based conditions.

Veterinary college, Luna Innovations partner on nationally funded nerve gas program

Researchers at Virginia Tech will explore the development of novel methods for delivering chemical antidotes that can mitigate the devastating effect of organophosphate-based neurotoxicants. The team aims to use nanoparticles called fullerenes to enhance their water solubility and catalytic properties, which could potentially protect a...

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

How do secure mother-child attachments predict good friendships?

Preschool children with secure mother-child attachments form closer friendships due to their positive understanding of others and open emotional communication. Open emotional communication also predicts fewer hostile attributions and greater teacher-reported friendship quality.

Mechanical thinning increases fruit size, reduces labor

Researchers found that mechanical thinning increased fruit size by 9% compared to conventional hand-thinning or non-thinned control trees. The technology also reduced labor time by 50% while maintaining average fruit sizes within the desired range, offering economic benefits for growers.

Extensive publication bias for Phase I drug trials

A recent study found that Phase I drug trials are underreported, with only 17% published in scientific journals. The lack of transparency can compromise the safety and efficacy of new drugs, highlighting the need for increased mechanisms to ensure complete availability of trial results.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

OHSU vaccine research targets HIV in the slower, early stage of infection

Researchers at Oregon Health & Science University's Vaccine and Gene Therapy Institute have developed a vaccine that targets HIV in its early stages of infection. The vaccine, which involves creating resistance by programming the immune system to recognize HIV, showed protection in one-third of subjects in animal studies.

Cracking the species code for plants

Scientists have identified six gene regions suitable for automated plant species identification, promising to aid in biodiversity protection and pharmaceutical discovery. A large-scale test is underway to validate these regions against a vast number of plants.

Always something brewing year 'round on NASA's hurricane Web page

The NASA Hurricane Web Page offers daily storm updates, stunning video animations, educational tools, and historic storm information on all storms since 2005. Researchers gather data from various satellites to understand factors that determine why a tropical cyclone strengthens or weakens.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Decline of shorebird linked to bait use of horseshoe crabs

A long-term study reveals that the average weight of red knots has declined significantly since their primary food source, horseshoe crab eggs, was reduced. The population size of red knots has declined by over 75 percent due to increased harvest of horseshoe crabs.

Cheaper materials could be key to low-cost solar cells

Researchers identify 12 abundant materials with potential to meet global energy demand, offering a cost-effective alternative to traditional silicon-based solar cells. The study suggests that these new materials could significantly reduce the cost of solar photovoltaics and accelerate the transition to low-carbon energy.

Researchers explore new driver of transplant rejection: Platelets

A new review by Johns Hopkins scientists highlights the importance of platelets in organ transplant rejection, revealing their role in driving inflammatory responses. This research could lead to the development of new strategies using drugs or other means to keep platelets quiet and non-inflammatory.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Can exercising your brain prevent memory loss?

A study of 197 people with mild cognitive impairment found that engaging in mental activities like reading, crafting, and playing games reduced the risk of memory loss by 30-50% compared to those who didn't participate. Participants who watched TV for less than 7 hours a day were also 50% less likely to develop memory loss.

Forgotten and lost -- when proteins 'shut down' our brain

Researchers used Nuclear Magnetic Resonance Spectroscopy to study the tau protein's structure and interactions in neurons of Alzheimer's disease patients. The study found that abnormal phosphorylation of tau proteins disrupts their ability to bind to microtubules, leading to cell death and nerve damage.

Biomarker predicts disease recurrence in colorectal cancer

Researchers at Thomas Jefferson University found a biomarker, guanylyl cyclase 2C (GUCY2C), that predicts disease recurrence in colorectal cancer. The study revealed that 87.5% of patients had positive GUCY2C expression and 20.9% developed recurrent disease.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Persons who survive cancer more likely to be unemployed

A meta-analysis of 36 studies found that cancer survivors are 1.37 times more likely to be unemployed than healthy control participants, with higher risks for breast and gastrointestinal cancers. Long-term medical and psychological effects may cause social functioning impairments, including employment difficulties.

Cells with double vision

Researchers found that fly nerve cells can respond to movement in a wider field of vision due to connections with neighboring cells, allowing for more efficient processing of visual information. This challenges the traditional view of single-cell functionality and suggests a more complex network-based approach.

Exploring new pathways to language

A study by Gerry Stefanatos and team found that dextroamphetamine improved speech processing in patients with Broca's aphasia and Anomic aphasia, suggesting the drug may enhance brain repair and therapy outcomes.

College-level documents for 8th grade readers

A study analyzing 240 hospital documents found they have an average readability level of a college junior, exceeding the reading capacity of most patients. The use of complex language in Patients' Bill of Rights laws may be obstructing progress towards patient autonomy.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Aerosols -- their part in our rainfall

Researchers identify aerosols as a crucial factor in shaping Australian rainfall patterns, with potential impacts on future climate change. Aerosol pollution from Asia may be responsible for changes in rainfall patterns in northern Australia.

Controlling cucumber beetles organically

Researchers found that Al-plastic mulch and companion plants increase watermelon and muskmelon yields while reducing cucumber beetles. The study suggests that these organic methods can be effective in controlling pest populations, potentially leading to increased crop productivity.

Veterinarians developing model to help producers, vets make cattle more comfortable

Researchers measure discomfort in cattle undergoing procedures like castration and dehorning using equipment similar to a jogger's heart rate monitor. The study aims to improve pain management in livestock by assessing the effectiveness of pharmaceuticals and recommending proper dosing. By analyzing various measurements, including skin...

Press statement on new CDC MRSA study from SHEA president

A recent CDC study reveals a steady decline in intensive care unit catheter-associated MRSA bloodstream infections since 2001. SHEA President Mark Rupp emphasizes the need to focus on preventing infections caused by multiple organisms rather than just one, such as MRSA.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Researchers identify gene linked to aggressive progression of liver cancer

Researchers at Virginia Commonwealth University identified a gene, AEG-1, that plays a key role in regulating liver cancer progression. The study found that AEG-1 expression increases as the tumor becomes more aggressive and is involved in invasion, metastasis, resistance to chemotherapy, and other processes.