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Science News Archive 2009


Page 31 of 277

Increased obesity hindering success at reducing heart disease risk

A study found that the average BMI of adult Americans increased from 26.5 to 28.8 kg/m2, undermining progress in reducing blood pressure and fasting glucose risk factors. Despite public health efforts, there is no net improvement in the overall cardiovascular risk factor profile.

Coaches can shape young athletes' definition of success

A new study found that a mastery motivational climate, emphasizing teamwork and positive communication, influences children's achievement goals in sports. Coaches who use this approach promote greater enjoyment, lower sport anxiety, and improved retention rates among young athletes.

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.

Canadians finding it tough to shake the salt habit

A recent Canadian study reveals that half of Canadians believe they consume too much salt, but only half are taking action to reduce their sodium intake. Despite having some knowledge about the health risks of excessive sodium consumption, many respondents lack awareness on how much salt is considered too much.

Extinct moa rewrites New Zealand's history

Scientists reconstructed New Zealand's geological history using the first complete genetic history of the moa, revealing a history of marine barriers, mountain building, and glacial cycles over millions of years. The study also suggests that many iconic species evolved solely on the South Island.

Advanced nuclear fuel sets global performance record

Researchers achieved a world record by consuming approximately 19% of its low-enriched uranium, more than double the previous record. The advanced fuel design demonstrates robustness and safety, paving the way for commercial-scale HTGR fuel production.

Human emissions rise 2 percent despite global financial crisis

Carbon dioxide emissions from human activities reached an all-time high of 1.3 tonnes of carbon per capita per year in 2008, driven mainly by increased use of coal. The global effort to reduce emissions from human activity must be accelerated to avoid the worst-case scenario of climate change.

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.

People work harder when expecting a future challenging task

Researchers discovered that people invest more effort in current tasks when anticipating future difficult tasks, a phenomenon dubbed the 'get ready mindset'. This behavior is driven by mental preparation for upcoming challenges, which carries over to current tasks.

Apple iPhone 17 Pro

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

NJIT engineer discovers why particles disperse on liquids

A NJIT engineer has discovered that particles disperse rapidly on liquid surfaces due to the oscillation of particles in a phenomenon known as repulsive hydrodynamic force. The smaller the particles, the faster they move, with nanometer-sized particles reaching speeds of up to 167 kilometers per hour.

Nutrigenomics researchers replicate gene interaction with saturated fat

Tufts University researchers identified a gene-diet interaction linked to body weight and obesity, replicated in three independent studies. Men with the CC genotype consuming high-saturated fat diets showed higher BMI scores and obesity risk compared to those with low-saturated fat intake or other genotypes.

Studies suggest males have more personality

Studies across various species reveal that males tend to exhibit more predictable behavior, particularly in parental care, aggression, and risk-taking. Females, on the other hand, are more likely to vary their behavior and respond to these traits, indicating a preference for mates with consistent personalities.

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.

'No muss, no fuss' miniaturized analysis for complex samples developed

NIST researchers have developed a novel method for analyzing complex samples with minimal sample preparation, using Gradient Elution Moving Boundary Electrophoresis (GEMBE) in microfluidic devices. This technique enables the separation of components from solutions containing particulates or other contaminating materials.

Watching Lyme disease-causing microbes move in ticks

Scientists at the University of Connecticut Health Center have visualized the movement of Lyme disease-causing microbes within feeding ticks. The study found that these microbes undergo a biphasic mode of dissemination, first forming networks of nonmotile organisms and then becoming motile invasive organisms.

Protecting the future: How plant stem cells guard against genetic damage

Research by Nick Fulcher and Robert Sablowski found that plant stem cells are sensitive to DNA damage and can detect defects, triggering cell death to prevent them from being passed on. This mechanism helps protect plants against genetic damage caused by environmental stresses such as drought, high salinity, and hazardous chemicals.

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.

Resuscitation and survival rates from out-of-hospital cardiac arrest nearly double

The VCU Medical Center and Richmond Ambulance Authority partnership has improved resuscitation and survival rates for cardiac arrest patients by training paramedics to lower body temperature in the field and using high-tech strategies. The strategy resulted in a two-fold improvement in return of spontaneous circulation and an increase ...

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Unrealistic optimism prompts risky behavior

Research on 800 college students found that those with smaller drinking problem chances were more likely to experience problems, contrary to the idea that optimism motivates health care. The study suggests that unrealistic optimism may actually curb risky health behaviors.

Text message reminders may encourage sunscreen use

Daily text-message reminders significantly increased sunscreen application among participants over a six-week period. The study found that adherence rates were 56.1% with daily reminders compared to 30% without reminders.

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.

New funding will stimulate alternative energy research

The Laboratory will provide expertise and technological tools to four geothermal projects with Pueblo of Jemez, New Mexico Tech, and the University of Utah. Los Alamos researchers will assist in characterizing geothermal springs and developing new chemical tracers to determine heat transfer characteristics.

Migraine raises risk of most common form of stroke

Researchers at Johns Hopkins Medicine found that migraine headaches are associated with more than two-fold higher chances of ischemic stroke. Women with migraines have a particularly high risk, with a 2.9 times higher risk compared to men.

First ever large-scale study of ketamine users published

A large-scale study of ketamine users found that heavy users experienced impaired verbal memory, forgetfulness, and difficulty recalling conversations. The study also revealed that occasional ketamine use does not lead to prolonged harms to cognitive function, but frequent use can have negative effects.

UT's Kraken named world's third fastest computer, ORNL's Jaguar is No. 1

The University of Tennessee supercomputer Kraken has been ranked as the world's third fastest computer and holds the title of the world's fastest academic supercomputer. With its combined computing power with Oak Ridge National Laboratory's Jaguar, East Tennessee is now firmly established as a center for supercomputing activities.

Bacterial 'ropes' tie down shifting Southwest

Researchers discovered that certain cyanobacteria species have evolved rope-building traits to resist erosion and stabilize soil substrates in arid environments. This adaptation allows them to thrive in areas where other microbes would struggle to survive.

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.

An often overlooked protein actually a potent regulator of cardiac hypertrophy

A protein long thought secondary to stressors like hypertension is actually a primary regulator according to researchers. Knocking out GSK-3alpha causes significant hypertrophy in mice models. The findings also suggest GSK-3alpha as a positive regulator of the beta-adrenergic system, potentially helping failing hearts pump better.

Glimpsing a greener future

A University of California, Irvine computer model forecasts improved air quality in the Greater Los Angeles area if 75% of drivers switch to hydrogen fuel cell vehicles by 2060. The model suggests a 60% reduction in greenhouse gas emissions and lower levels of soot and ozone.

Study shows link between influenza virus and fever

A study by University of Bonn researchers has found a link between the influenza virus and fever, revealing that the immune system's RIG-I protein plays a key role in triggering high temperatures. This discovery could lead to new therapeutic strategies for treating severe viral infections.

Text message reminders can encourage healthy action

A new study led by UC Davis Health System dermatologist April Armstrong found that daily text messages reminding people to apply sunscreen increased its use by nearly twice as much as those who did not receive such messages. The study aimed to explore the potential of text messaging to encourage healthy habits in patients, and its find...

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.

Surgical errors remain a challenge in and out of the operating room

An analysis of surgical adverse events at Veterans Health Administration Medical Centers found that communication problems are the leading cause of errors, often occurring early in procedures. The study highlights the need for earlier communication based on crew resource management to prevent surgical adverse events.

Don't be happy, be worried: Sports fans need dose of negative

Researchers found that fans who experienced negative emotions during the game thought it was more thrilling and suspenseful. The study suggests that both positive and negative emotions contribute to entertainment and enjoyment, with negative emotions acting independently and together.

Acute heart attack patients receiving high ionizing radiation dose

A large study found acute heart attack patients received an average of 14.5 millisieverts of ionizing radiation, equivalent to 725 chest X-rays, during their hospital stay. Physicians may be unaware of cumulative dose accumulation from tests and should consider radiation exposure when diagnosing and treating heart attacks.

Finding a protective mechanism for retinal cells could save sight

Researchers at Yale University have identified a novel protective mechanism in photoreceptors that could help preserve vision in people with eye diseases. The study found that the activation of CREB1/ATF1 is part of this pathway, which was triggered by stress and can be activated by certain drugs.

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.

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.

Embargoed news from Annals of Internal Medicine

The US Preventive Services Task Force now recommends against routine breast cancer screening for women under 50 due to insufficient evidence. However, women between 40-49 at high risk should discuss biennial mammography with their doctor. The task force also suggests changing the screening interval from one year to two until age 74.

Fluke 87V Industrial Digital Multimeter

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

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.