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Science News Archive 2009


Page 21 of 277

Careful diagnosis helps fracture patients put best foot forward

A new review article highlights the importance of detailed diagnosis for talus fractures, which are commonly misdiagnosed due to complex anatomy and subtle radiographic clues. By recognizing these injuries and providing targeted treatment, patients can avoid permanent disability and improve outcomes.

Tumor-attacking virus strikes with 'one-two punch'

Researchers at Ohio State University have developed a tumor-attacking virus that kills brain-tumor cells and blocks the growth of new tumor blood vessels. The virus, called RAMBO, was tested in animal models and showed promise in treating aggressive brain cancer with a survival rate of 54 days.

Apple iPhone 17 Pro

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

Ethnic pride key to black teen mental health

A new study by Northwestern University found that ethnic pride is crucial for the mental well-being of young African-American adolescents. The research discovered that increased feelings of ethnic pride are associated with reduced depressive symptoms in both male and female students.

Heart failure linked to gene variant affecting vitamin D activation

A study found that patients with a specific gene variant are twice as likely to develop congestive heart failure, suggesting a genetic link between vitamin D action and heart disease. The research analyzed the genetic profiles of 617 subjects and identified a critical enzyme associated with the development of congestive heart failure.

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.

To keep muscles strong, the 'garbage' has to go

Researchers found that mice deficient in a gene required for autophagy develop muscle atrophy and weakening, resembling certain diseases. Maintaining normal autophagy levels is crucial to clear away damaged cells and prevent muscle weakness with age.

Preventing repeat strokes -- are survivors taking their medicine?

Despite increased availability of prescription antiplatelet medications, the overall use of blood-thinning agents among stroke survivors has plateaued. Aspirin remains the predominant agent used for secondary stroke prevention, with no improvements in antithrombotic agent usage over a 7-year period.

Shape shifters: Researchers create new breed of antennas

Researchers at North Carolina State University have created a new breed of antennas that can be bent, stretched, cut and twisted without breaking. These shape-shifting antennas use an alloy that remains liquid at room temperature, allowing them to retain their mechanical properties and tune into different frequencies by stretching.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Severe asymptomatic heart disease may accompany narrowing in leg arteries

A study found that patients with peripheral arterial disease (PAD) and no symptoms of heart disease are at high risk for cardiovascular events. Asymptomatic coronary artery disease was detected in 24% of PAD patients through non-invasive imaging, highlighting the need for extensive cardiovascular risk factor management.

Binge drinking youths find getting old a drag

A study by Dr. John Garry and Dr. Maria Lohan found that young men who perceive declining happiness with age are more likely to engage in risky health behaviors like binge drinking. The researchers analyzed data from over 1,000 citizens of Northern Ireland aged 15+, finding that just over half were categorized as binge drinkers.

White House rhetoric is important in forming foreign policy opinions

A new study by University of Missouri researchers found that well-informed citizens are less swayed by White House rhetoric, while the general public is more susceptible to manipulation. Simple and compelling language used by presidents can significantly increase public support for military actions overseas.

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.

Pleasant dietary habits are necessary for health

Research by Professor Yasuhiko Minokoshi and Dr. Tetsuya Shiuchi found that meals with sweet taste stimulation activate 'orexin' neurons, reducing blood glucose levels in mice. Pleasant eating habits may prevent hyperglycemia by activating orexin neurons.

Marine aquaculture could feed growing world population

Marine aquaculture has the potential to meet global food demand as freshwater resources are limited and terrestrial agriculture struggles. Expanding marine aquaculture operations using low-on-the-food-chain organisms like plankton and algae can achieve sustainable growth.

Childhood lead exposure causes permanent brain damage

A study using fMRI revealed that adults exposed to lead as children incur permanent brain injury, with distinct areas of the brain affected differently. Lead exposure has been associated with diminished IQ, poor academic performance, and increased risk of criminal behavior.

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.

Investigators identify successful weight control strategies for adolescents

A new study published in the Journal of the American Dietetic Association found that adolescents who successfully lost weight reported using six or more healthy weight control behaviors, such as eating more fruits and vegetables and exercising regularly. In contrast, those who did not lose weight relied less on structured behavior stra...

Typhoon Nida's cloud tops dropping as it zigzags in wind shear

NASA's CloudSat satellite noticed a drop in Typhoon Nida's cloud tops from over 9 miles high to around 8 miles high, indicating less powerful thunderstorms and weakening winds. The storm has zigzagged between 18 and 20 degrees North Latitude, moving west, then east, and now back in a westward direction.

Fluke 87V Industrial Digital Multimeter

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

North Pole wolf e-mails locations to researchers

A U.S. Geological Survey scientist is using a satellite collar on a North Pole wolf named Brutus to learn about the Arctic wolves' behavior in winter. The collar collects and stores locations every day, which are then emailed to researchers, allowing them to track the wolf's movements and habitat use.

In CO2-rich environment, some ocean dwellers increase shell production

In a surprising finding, some marine organisms like crabs, shrimp, and lobsters build more shells when exposed to ocean acidification caused by elevated levels of atmospheric carbon dioxide. This may be due to the increased availability of dissolved inorganic carbon, which is beneficial for their skeleton formation.

New safety concern related to antipsychotic treatment

Researchers found that antipsychotic medications increase levels of inflammatory markers, contributing to the risk of diabetes, hypertension, and heart disease in patients. The study highlights the need for monitoring cardiovascular risk markers in antipsychotic-treated patients.

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.

JCI online early table of contents: Dec. 1, 2009

High urea levels in chronic kidney failure have been found to be toxic, leading researchers to suggest a potential new treatment strategy. Antioxidant therapy was shown to restore insulin sensitivity in mice with end-stage kidney disease. Similarly, targeting the molecular link Mdm2 may help prevent progression of late-stage metastatic...

Mammography may increase breast cancer risk in some high-risk women

A recent study suggests that mammography screening in young women with genetic or familial predisposition to breast cancer may increase their breast cancer risk. The study found that repeated exposure to low-dose radiation increases breast cancer risk among these women, particularly those under age 20 or with five or more exposures.

Psychologists suggest parents should wait to teach toddlers self-control

Research suggests that pushing toddlers to develop self-control too early may hinder brain development. Toddlers rely on brute-force competition to learn social conventions like language acquisition. Their immature brains are better equipped for learning through trial and error, allowing them to pick up skills effortlessly.

Yehezkel Ben-Ari, winner of the 2009 INSERM Grand Prix

Yehezkel Ben-Ari, founder of Inmed Mediterranean Institute of Neurobiology, receives the 2009 INSERM Grand Prix for his pioneering discoveries in brain maturation, epilepsy, and stroke. He is recognized for his contributions to fundamental, clinical, and therapeutic research.

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.

Loneliness can be contagious

Researchers found that lonely people tend to share their loneliness with others, gradually moving to the fringes of social networks. As a result, these individuals become less connected and more isolated.

Criteria based on CT imaging after chemotherapy may help predict survival

A study found that morphologic changes on CT scans after bevacizumab-containing chemotherapy can predict overall survival in patients with stage IV colorectal cancer. The changes, including tumor size reduction and unique structural alterations, were strongly correlated with pathologic response and improved survival.

Fear of anxiety linked to depression in above-average worriers

Researchers found that anxiety sensitivity significantly predicted depression symptoms in above-average worriers. The fear of cognitive dyscontrol and publically observable anxiety symptoms specifically correlated with depression. Understanding this link may lead to new depression treatments by addressing anxiety sensitivity.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Naked mole rats may hold clues to surviving stroke

Researchers found that naked mole rat brain tissue can survive for over half an hour without oxygen, which could lead to new treatment options for brain injuries caused by heart attacks, strokes, and accidents. This adaptation may also provide insights into how to prevent permanent human brain damage after temporary loss of oxygen.

Big freeze plunged Europe into ice age in months

Researchers found that the Big Freeze was triggered by a sudden freshwater pulse from Lake Agassiz in North America, which diluted the North Atlantic conveyor belt and led to rapid temperature drops. The climate took centuries to recover.

Patients say 'no thanks' to risky medical treatments

A recent study found that increasing patient responsibility for medical decisions decreases their willingness to accept risky treatments. Patients who were presented with choices reported higher worry about risks and lower uptake of treatment.

NASA captures Typhoon Nida's clouds from 2 angles

Typhoon Nida's maximum sustained winds are near 115 mph, with tropical storm force winds extending 150 miles from the center. NASA's CloudSat satellite captured a side look across Nida on Nov. 28, showing clouds over 15 kilometers high and heavy rainfall areas.

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.

Financial restructuring in fresh-start Chapter 11 reorganizations

A recent study published in Financial Management argues that Chapter 11 reorganizations fail to offer a clean slate for firms to establish new capital structures. Despite substantial reductions in debt burden, firms still end up with higher debt ratios than industry norms.

Quantitative approach to forensic fingerprint comparison studied

Researchers aim to establish a standard for 'sufficiency' of information in friction ridge patterns, addressing the lack of quantifiable standards in the field. The goal is to improve accuracy and contribute to advancing science in forensic pattern recognition and comparison.

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.

Mean old levee

The Portable Lightweight Ubiquitous Gasket (PLUG) system, developed by Wil Laska, passed its second test in November 2009, demonstrating the ability to fill with water, float on flood currents, and adhere to breach sites. Four technologies were tested, including a large balloon or tube that worked as hypothesized.

The therapeutic benefits of the human-animal bond

Research documents the value of the human-animal bond in improving child development, elderly care, and rehabilitation outcomes. A growing body of evidence highlights the healing power of companion animals in reducing stress, providing affection, and fostering a sense of security.

Innovation puts next-generation solar cells on the horizon

Researchers at Monash University have developed a new way to increase the output of next-generation solar cells, achieving a three-fold increase in energy conversion efficiency. The breakthrough uses a new, more efficient type of dye that enables the operation of inverse dye-sensitised solar cells.

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.

Scientists gain new understanding of disease-causing bacteria

Researchers use cryo-electron tomography to elucidate molecular architecture of Treponema pallidum, shedding light on cellular structure and movement. The study provides new understanding of how the bacterium attaches to human cells and moves with its flagella.

Tuberculosis: On the path to prevention

Scientists at MUHC and international colleagues discovered a chromosomal site controlling natural resistance to TB infection, found in 20% of individuals from high-exposure areas. The findings hold promise for preventing TB infection in the general population by stimulating resistance mechanisms.

Embargoed news from Annals of Internal Medicine

A new self-assessment score has been developed to predict diabetes risk, showing promise as a simple and effective tool. Additionally, researchers are considering alternative bacteria, Fusobacterium necrophorum, for sore throat treatment due to its association with a rare but life-threatening complication, Lemierre syndrome. Furthermor...

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.