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Science News Archive 2009


Page 30 of 277

Vardenafil: A potential drug to protect gastric mucosa

A study published in the World Journal of Gastroenterology found that vardenafil has dose-dependent gastroprotective effects against NSAID-induced peptic ulcer. This suggests that vardenafil may be used as a potential therapeutic drug to prevent NSAID-induced gastric ulcer formation.

Some prescription meds can harm fetus

A Université de Montréal investigation found that over six percent of expectant mothers in Quebec use prescription drugs known to be harmful to their fetuses. The study also revealed that the abortion rate among these women is 11 percent higher than in the rest of the population.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Cross-country runabouts -- immune cells on the move

Researchers at the Max Planck Institute have discovered how immune cells, such as white blood cells, move on various surfaces. They found that these cells use a 'clutch and wheels' system, involving cell anchors and cytoskeleton deformation to maintain constant speed, enabling them to adapt to different substrates.

Depression as deadly as smoking, but anxiety may be good for you

A study found that depression increases mortality risk similar to smoking, but anxiety reduces it when combined with depression. Researchers suggest that help-seeking behavior may explain this pattern, and highlight the need for more attention on physical health in people with mental disorders.

Immediate, aggressive spending on HIV/AIDS could end epidemic

A recent study published in BMC Public Health suggests that immediate and aggressive spending of $60 billion on HIV/AIDS treatment could end the epidemic globally. The research, which analyzed a leading-edge mathematical model, predicts that an accelerated approach over five years is necessary to control the spread of the disease.

Small optical force can budge nanoscale objects

Researchers at Cornell University used a tiny beam of light to move a silicon structure up to 12 nanometers, switching its optical properties. This technology could have applications in MEMS and MOMS, where it might be useful for creating tunable filters or preventing silicon parts from sticking together.

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 funds for Rice, M.D. Anderson program

The Rice University-M.D. Anderson Cancer Center program provides incoming graduate students with early exposure to translational research and clinical practice. The HHMI funding renewal will allow the program to expand to include students from M.D. Anderson's Department of Imaging Physics.

Moa get fewer: Landmark study

A comprehensive study of over 260 sub-fossil specimens reveals that moas should be grouped into three families and six genera, reducing the number of species to nine. The study also presents a new geological model suggesting that land-dwelling animals on the North and South Island were isolated for most of the past 20-30 million years.

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.

Counterfeit euros are detected with an optical mouse

A Spanish study detects counterfeit euros using optical mouse sensors, with 79% of 2008 European coins found to be two-euro coins. The system compares images captured by the sensor with reference images from genuine coins, allowing for accurate detection.

Need for emergency airway surgery for hard-to-intubate patients reduced

A comprehensive program at Johns Hopkins has reduced the need for emergency airway surgery by 67% by providing a standardized cart with essential supplies and training staff on its use. The program's success story highlights the importance of organization and teamwork in improving patient outcomes.

Apple iPhone 17 Pro

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

Are teenagers wired differently than adults?

Researchers studied amygdala development, finding that neural pathways bypassing cortex are more plastic in juvenile than adult mice. This suggests that teenagers' emotions are less precise and more irrational due to subcortical drive.

Unexplained liver hemorrhage after metastasis radiofrequency ablation

Radiofrequency ablation, a local hepatic treatment for liver metastases from colorectal carcinoma, can lead to unexplained liver hemorrhage. The procedure's increasing use with few selection criteria raises concerns about minimizing complications. Early intervention is crucial in managing these complications.

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.

On your last nerve: NC State researchers advance understanding of stem cells

Researchers from NC State University have identified a gene called FoxJ1 that tells embryonic stem cells in the brain when to stop producing nerve cells. This discovery advances understanding of the nervous system and its development, with potential applications for conditions like Parkinson's disease and Alzheimer's.

New study confirms exotic electric properties of graphene

Researchers at Vanderbilt University have successfully demonstrated the fractional quantum Hall effect in clean graphene, a two-dimensional crystalline material. This breakthrough exploits graphene's unique electrical properties to create novel devices and test theoretical models of extreme environments.

Rice ties in race for atomic-scale breakthrough

Physicists at Rice University have successfully created a Bose-Einstein condensate from strontium atoms, marking an important advancement in atomic-scale research. The achievement demonstrates the long-sought creation of a state where individual atoms lose their identity and come together to form a singular lump.

To eat or not to eat? Mental budgets help control consumption

Researchers found that mental budgets alone were insufficient for controlling overconsumption; active goals and numerical recommendations are crucial. Mental budgets succeed when consumers follow specific limit guidelines, such as weight loss programs like Weight Watchers.

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.

Your own stem cells can treat heart disease

Researchers found that transplanting a potent form of adult stem cells into the heart muscle results in less pain and an improved ability to walk. The study also showed reduced episodes of chest pain in daily life.

A second skin

A Tel Aviv University-developed dressing can eradicate infection-causing bacteria after just two days, protecting wounds until they heal. The biodegradable, antibiotic-infused material mimics skin's protective properties and helps doctors administer high doses of antibiotics locally, reducing toxicity issues.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Solving the 50-year-old puzzle of thalidomide

Thalidomide's mechanism of causing limb defects has been linked to its impact on angiogenesis, the growth of new blood vessels. This understanding paves the way for developing safer treatments for diseases like Leprosy, Crohn's Disease, and AIDS.

EIT waves and coronal magnetic field diagnosis

Researchers propose EIT wave analysis as an alternative approach to measure the solar coronal magnetic field. They demonstrated that the profile of EIT wave propagation velocity can be utilized to probe the coronal magnetic field, potentially unveiling the nature of solar flares and CMEs.

JQI researchers create entangled photons from quantum dots

Physicists at the Joint Quantum Institute have developed a technique to create entangled photons from quantum dots tweaked with a laser. This method may enable more compact and convenient sources of entangled photon pairs than presently available, revolutionizing quantum information applications.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

NIH awards $8.5 million for research on pharmaceuticals for children

The NIH has awarded $8.5 million to support research on pharmaceuticals for children, with a focus on determining outcome measures to facilitate future studies. The grants will support studies in pediatric cardiology, neonatology, and pediatric neurology, aiming to improve the quality of pediatric research.

US gets a 'D' for preterm birth rate

The US received a 'D' grade on the March of Dimes Premature Birth Report Card, with over half a million newborns not receiving a healthy start. Seven states improved their preterm birth rates by reducing smoking, uninsured rates, and late preterm births.

Purdue, NASA research provides blueprint for molecular basis of global warming

Researchers at Purdue University and NASA found that compounds containing fluorine atoms are more efficient at blocking radiation, contributing to global warming. These compounds, such as chlorofluorocarbons, hydrofluorocarbons, and sulfur and nitrogen fluorides, have the potential to quickly slam the atmospheric window shut, unlike ca...

Fossil fuel CO2 emissions up by 29 percent since 2000

Global fossil fuel CO2 emissions increased by 29% between 2008 and 2000 due to growing coal use and international trade. The natural carbon sinks' efficiency has decreased, allowing more CO2 to remain in the atmosphere. This rise highlights the need for drastic reduction in global CO2 emissions.

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.

New study ushers in spring-time for slow inactivation

Researchers have discovered a mechanism for accelerating slow inactivation in Shaker mutant K+ channels using tetraethylammonium, providing new insights into potassium pore dynamics. The study's findings have important implications for subsequent research on this topic.

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.

Cancer patients and doctors report drug side effects differently

A new study from Memorial Sloan Kettering Cancer Center found that clinicians' and patients' reports of treatment side effects differ significantly, but together provide a more complete picture. Patients generally reported adverse symptoms earlier, more frequently, and with greater severity than their clinicians.

Prevalence of high LDL, or 'bad' cholesterol levels decreases in US

The prevalence of high LDL cholesterol levels in the US decreased from 31.5% to 21.2% between 1999-2000 and 2005-2006. However, high-risk individuals still face barriers to screening and treatment, with only 35.5% of those with high LDL-C levels being unscreened in 2005-2006.

Heart disease found in Egyptian mummies

Researchers have discovered that ancient Egyptian mummies, some as old as 3,500 years, exhibited significant calcification in their arteries, indicating the presence of atherosclerosis. This finding suggests that heart attack and stroke may not be exclusively modern diseases.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Cyclone Anja hits wind shear, weakens drastically

Cyclone Anja was a powerful Category 4 cyclone on November 17, with maximum sustained winds of 86 mph. It weakened drastically due to upper-level wind shear and spread out, extending tropical storm-force winds 115 miles from its center.

News brief: Adverse symptom reporting by patients vs. clinicians

A new study published in the Journal of the National Cancer Institute found that patient-reported symptoms were more highly associated with day-to-day health status, while clinician reports were more predictive of death and hospitalization. The study suggests that both perspectives are valuable for a comprehensive understanding of trea...

Coed college housing connected to frequent binge drinking

A new study published in Journal of American College Health reveals that coed college housing increases the risk of binge drinking by 2.5 times compared to all-male or all-female housing. Over 500 students from various campuses participated, with 42% of coed housing residents reporting weekly binge drinking.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

When East meets West: Why consumers turn to alternative medicine

A new study explores how consumers choose among health remedies and the consequences for a healthy lifestyle. Consumers prefer Traditional Chinese Medicine (TCM) when uncertain about an illness's cause or seeking an underlying cure, as it tolerates uncertainty better than Western medicine.

Putting math problems in proper order

The American Institute of Mathematics (AIM) has developed a new tool, AIM Problem Lists, to help researchers tackle unsolved math problems. The lists provide clear statements of problems with expert commentary on possible approaches, allowing experts to track progress and newcomers to gain perspective.

Motivational 'women-only' cardiac rehab improves symptoms of depression

A motivationally-enhanced cardiac rehabilitation program for women with coronary heart disease significantly improves depressive symptoms and adherence rates compared to traditional programs. The intervention, tailored to the needs of women and their stage of readiness, led to sustained improvements at a 6-month follow-up period.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.