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Science News Archive 2009


Page 267 of 277

Health professionals must engage in the fight for fairer trade

The Lancet Series on Trade and Health highlights the need for health professionals to engage in trade debates due to their impact on global health. The series proposes reforming trade regimes to enhance health outcomes, including compulsory licensing of essential medicines in resource-poor countries.

February 2009 highlights from Biology of Reproduction

A recent study found that long-term exposure to marijuana can negatively affect human male fertility by increasing anandamide levels. Additionally, two papers investigate the effects of delayed fatherhood in mice, revealing abnormalities in offspring's behavior and reproductive fitness.

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.

Measles virus may be effective prostate cancer treatment

Researchers have found that certain measles virus vaccine strain derivatives can effectively infect, replicate in and kill prostate cancer cells. This type of treatment, called virotherapy, shows promise as a potential cure for locally advanced or metastatic prostate cancer.

Texas Medical Center researchers win collaborative grants

Researchers at Rice University, Texas Children's Hospital, and The Methodist Hospital Research Institute will investigate the mysteries of tuberculosis, breast cancer, and childhood cancer. They plan to develop novel treatments using lasers for deaf patients and create an auditory prosthetic superior to existing cochlear implants.

The way ahead for trade and health

The Lancet Series on Trade and Health emphasizes the need for stronger evidence to link trade and health outcomes. Building capacity to analyze these links and ensuring public health representation in negotiations are crucial. The series advocates for policy responses to mitigate negative effects and optimize health benefits.

Evolution and epilepsy

Researchers discovered that evolutionary changes produced improvements in molecules generating electrical signals in nerves between 550 and 400 million years ago. These innovations contributed to the evolutionary success and diversity of vertebrate animals. The study also found that the same electrical signaling molecules are an effect...

Free trade = healthier population? Think again

The study suggests that trade liberalization can exacerbate poverty, income inequality, and economic insecurity, leading to poorer health outcomes. The authors highlight the importance of social protection policies to mitigate these negative effects on public health.

Apple iPhone 17 Pro

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

Studies point to novel target for treating arrhythmias

Researchers at Vanderbilt University Medical Center have discovered a new molecular mechanism that increases the risk of arrhythmias. They found that calcium-sensitizing drugs can cause arrhythmias by making heart muscle cells more prone to irregular rhythms.

Solarmer Energy Inc. expects sun to shine on Chicago invention

Solarmer Energy Inc. is working on a new plastic solar cell technology that achieves 8% efficiency and has a lifetime of at least three years. The invention, PTB1, converts sunlight into electricity using a semiconducting material with a thickness of just 100 nanometers.

University of Miami engineer designs stretchable electronics with a twist

The new mechanical design accommodates extreme bending and straining without reduction in electronic performance, enabling applications such as smart surgical gloves and eye cameras. The design uses semiconductor nanomaterials to offer high stretchability and twistability, making it suitable for various complex shapes.

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.

UD research study to shed light on emerging seaborne pathogen

A new University of Delaware research study is exploring the emergence of Vibrio parahaemolyticus, a leading cause of seafood-borne illness worldwide. The study aims to determine the pathogen's virulence genes and develop an agent to treat contaminated oysters.

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.

WHO and WTO: Bridging the divide

The authors argue that global health governance weaknesses hinder effective representation of public health interests in WTO decisions. To address this, they suggest strengthening WHO's influence through training and policy coherence on trade agreements.

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.

Orphaned elephants forced to forge new bonds decades after ivory ban

Researchers found that African elephants in Tanzania's Mikumi National Park formed unusually small groups and chose to forge new bonds with unrelated females. The effects of poaching on group size, relatedness, and social bonding persist for up to 20 years after the killing has ended.

Faces and race

Researchers developed a measurement system and protocol to train Caucasian subjects to recognize different African American faces, reducing implicit racial bias. The training improved ability to tell apart individual African-American faces and increased positive associations with African-American faces.

Excessive weight loss can be a bad thing

Cachexia is a wasting disease that can be life-threatening if left untreated. It's often linked to an underlying disease and requires specialized care from a physician familiar with the condition.

South African policy on adolescents' rights to access condoms is causing confusion

The current policy in South Africa allows individual schools to decide whether or not to distribute condoms, leading to limited access for adolescents. The researchers argue that making condoms available in schools would increase access and prevent HIV transmission among the country's youth, who account for 34% of new HIV infections.

Binge drinking leads to a greater risk of preterm birth

A new study found that binge drinking during pregnancy significantly increases the risk of preterm birth, regardless of when alcohol consumption stops. Women who drank heavily or binged had a higher incidence of preterm birth compared to those who abstained from alcohol.

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.

Anxious older adults may benefit from antidepressants

A study found that escitalopram improved anxiety symptoms and quality of life in older adults with Generalized Anxiety Disorder (GAD). The drug helped reduce anxiety and improve functioning, including daily activities related to work or family life. Benefits were modest, but the medication was well-tolerated overall.

Project MARGO: A new tool which improves the reliability of climate models

Researchers created MARGO, a new quantitative tool that reconstructs sea surface temperatures during the Last Glacial Maximum. The study provides more exhaustive data than previous models and helps identify aspects to improve climate modeling, particularly in representing temperature gradients and ocean currents.

Pathogenic soil bacterium is influenced by land management practices

A study found that the pathogenic soil bacterium Burkholderia pseudomallei is associated with land management changes such as livestock husbandry and residential gardening. The bacterium was more commonly found in areas with lower soil pH, irrigation, and presence of livestock animals.

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.

Many of China's 140 million old people find the crowd to be lonely

A study by Durham University and the University of Reading found that loneliness has doubled from 16% to 30% among Chinese people aged 60+, with urbanization and nuclear family structures contributing to the issue. To tackle this problem, the authors suggest involving local communities in social activities and providing financial support.

Native lizards evolve to escape attacks by fire ants

Researchers found that native fence lizards are adapting to fire ant attacks by developing twitching behavior, running away, and longer hind legs. Lizards from sites invaded longest were more likely to perform these survival behaviors.

Celestron NexStar 8SE Computerized Telescope

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

Fish out of water

A new species of fish from tropical South America has been discovered, confirming suspected roots to the loricariid catfish family tree. The species, Lithogenes wahari, shares traits with both the Loricariidae and Astroblepidae families, including bony armor and a grasping pelvic fin.

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.

Blocked protein prevents Lupus in mouse model

A study led by Professor Derry Roopenian found that a blocked protein called Interleukin 21 prevents systemic lupus erythematosus (SLE) in mice. The researchers also demonstrated the importance of IL21 signaling in SLE progression, suggesting that interrupting this process could be an effective therapeutic option for human SLE patients.

Microbot motors fit to swim human arteries

Researchers from Monash University have designed microbot motors powered by piezoelectricity, allowing them to swim up narrow arteries and enhance surgical views. The innovative technology could revolutionize minimally invasive surgeries, making them safer and more effective.

Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Surviving dance club music (noise) with hearing intact

A global team of researchers has discovered an alteration in the ear's nAChR protein that contributes to protecting against permanent hearing loss by limiting sound. The study found that genetically altered mice with improved sound-blocking ability suffered less permanent hearing damage when exposed to loud sounds.

Frogs are being eaten to extinction: new study

A new study reveals the global trade in frog legs is threatening their extinction. The annual global trade has increased over the past 20 years, with at least 200 million frogs consumed every year, according to Associate Professor Corey Bradshaw.

Research breakthrough targets genetic diseases

Researchers have discovered a plant model that mimics human DNA patterns, allowing for the study of genetic diseases such as Huntington's and Fragile X syndrome over multiple generations. This breakthrough could pave the way for better understanding and potential treatments for these debilitating conditions.

Our microbes, ourselves

Researchers found significant differences in microbial composition among obese patients, gastric bypass surgery subjects, and normal-weight individuals. The study suggests that the gut microbiome plays a key role in energy harvesting, making people more susceptible to obesity.

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.

Hospital at-home programs provide similar patient outcomes

A systematic review and meta-analysis found hospital at-home programs produce similar health outcomes to inpatient care for select patients, including those with chronic pulmonary disease and stroke. Patient satisfaction is also high for treatment at home.

Language driven by culture, not biology

Researchers modelled gene evolution alongside language development, concluding that genetic adaptation to language is unlikely due to rapid cultural change. The study suggests that human language has evolved primarily through cultural conventions rather than biological adaptation.

New, higher-yielding rice plant could ease threat of hunger for poor

A new, higher-yielding rice plant is being developed through a global consortium of scientists, which aims to increase yields by 50% while reducing fertilizer and water usage. The project has received a $11 million grant from the Bill & Melinda Gates Foundation and has the potential to benefit billions of poor people worldwide.

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.

JCI online early table of contents: Jan. 19, 2009

A recent study by Oregon Health and Science University and the University of Colorado School of Medicine found that fetal heath is affected by mother's diet, with high-fat diets increasing the risk of developing NAFLD and obesity-related diseases in offspring. Researchers suggest a healthy maternal diet is crucial for preventing these ...

Fetal health affected by mother's diet

A study found that a mother's high-fat diet during pregnancy can increase the risk of obesity-related diseases in her offspring. Reverting to a low-fat diet after a high-fat diet period reduced these risks.

New sperm shaker to improve IVF success

Scientists have developed a method to test sperm quality before IVF treatment, increasing conception chances. The new process uses Raman spectroscopy to identify DNA damage in sperm, providing a non-destructive 'quality score'.

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.

Kidney transplant survival can be long-term for people with HIV

A Johns Hopkins study found that HIV-positive kidney transplant recipients can achieve one-year survival rates comparable to those without HIV, provided key risk factors for transplant failure are recognized and controlled. The study's results reflect the impact of newer antiretroviral therapies on reducing HIV-related deaths.