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Science News Archive 2003


Page 92 of 108

Rice University tissue engineers set sights on meniscus

Researchers at Rice University are working on growing replacement cartilage for the meniscus, a kidney-shaped wedge of cartilage that cushions stress in the knee joint. By developing methods to simulate mechanical conditions and grow tissue in precise shapes, they aim to create more effective treatments for osteoarthritis.

Family mealtime is more than just sitting at the table

A new study published in the Journal of the American Dietetic Association found that children and adolescents who eat family meals consume more nutrient-dense foods and have lower intakes of snack foods. Family meals also provide quality time for households, according to registered dietitian Susan Moores.

On the nose

A new USC study suggests that humans lost the ability to detect pheromones due to a gene essential for vomeronasal organ function. The study found that mutations in this gene occurred around 40 million years ago, leading to the disappearance of the gene and subsequent loss of vomeronasal organ function in primates.

Do vaccines cause asthma, allergies or other chronic diseases?

Scientific studies have found no link between vaccines and chronic diseases such as asthma and food allergies. Reducing vaccination rates can lead to increased rates of preventable infectious diseases, according to the article co-authored by Dr. Paul Offit.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Ramipril use in Canada

The number of ramipril prescriptions for elderly Ontario residents increased significantly after the release of HOPE's results, peaking at 304/100 000 in May 2000. This surge in prescribing was attributed to widespread media coverage of the study's success.

Hair color business to dye for as sales picture keeps brightening

The hair dye market is experiencing rapid growth, driven by the popularity of permanent dyes that can last up to six weeks. According to recent studies, 42% of American women and 25% of American men use hair dyes, with 37% of consumers using them in the previous year.

Annals of Internal Medicine, tip sheet, March 4, 2003

A daily multivitamin and mineral supplement reduced the incidence of minor infections among healthy people over 45. Intentional weight loss was associated with a 24% lower death rate compared to unintentional weight loss.

The timing of hormone replacement therapy could be key to success

Researchers believe initiating hormone replacement therapy in younger women without advanced vessel disease can prevent heart vessel disease. However, delaying HRT may lead to ineffective or potentially harmful effects on older women with more advanced vessel disease.

Apple iPhone 17 Pro

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

Sobering data on student DWI habits

A Canadian Medical Association Journal study found that 15% of Ontario students with driver's licenses reported driving under the influence of alcohol, and 20% admitted to driving after using cannabis. These findings are particularly concerning given the high incidence of alcohol-related motor vehicle collisions among adolescents.

No mention of trauma as cause of head injury is likely abuse

A new study from Boston Children's Hospital found that parents' reports of no history of trauma in children with neurological symptoms after head injuries were highly indicative of abuse. The research used medical test results and histories to assess the likelihood of abuse, finding that even low-impact traumas were predictive of abuse.

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 with major depression may have higher suicide risk -- study

A study by Maria A. Oquendo and colleagues found that people with comorbid posttraumatic stress disorder (PTSD) and major depression have a higher risk of suicidal behavior. The research highlights the importance of assessing depressed patients for PTSD to determine accurate risk for suicide.

COX-1, not COX-2 expressed in ovarian cancer

Researchers at Vanderbilt University Medical Center found that COX-1, not COX-2, is expressed in epithelial ovarian cancer tissue samples. This discovery may lead to the development of new treatments for ovarian cancer by blocking both COX-1 and COX-2.

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.

Alcohol researchers relate a genetic factor to anxiety in women

Researchers discovered a correlation between a specific genetic variation in the COMT gene and higher levels of anxiety in women. Women with the COMT Met158/Met158 genotype tended to exhibit increased anxiety symptoms, as well as altered brain wave patterns associated with anxiety disorders.

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.

Workplace violence in hospitals

One in five nurses experience multiple types of violence in a single shift period. The Broken Windows theory suggests that tolerating minor acts of aggression among hospital staff creates an environment conducive to more severe violence. Researchers aim to address this issue with a visible response to incidents.

High-fat diet protects newborn brain from seizure damage, study suggests

A study on infant rats suggests that high-fat diets and increased production of uncoupling protein 2 (UCP2) may protect the newborn brain from seizure-induced cell injury. The ketogenic high-fat diet is shown to work in human children to prevent or reduce seizures, sparking new research into its potential benefits.

Composted biosolids bind lead in soil, reducing danger of poisoning

Research found that composted biosolids can lower lead bioavailability by 20-38% in contaminated garden soil, reducing the danger of poisoning. The study's findings suggest that using composted biosolids as a soil amendment could be a cost-effective alternative to removing and replacing contaminated soils.

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.

Bear researchers ensure population survival, growth

Researchers at Virginia Tech have made significant contributions to understanding bear behavior, including the impact of radio-collars on survival rates and the role of dispersal distance in helping bears evade hunters. Their findings also led to the development of a morphometric-based dichotomous key for age identification.

Infection control remains an issue for tattoo, piercing shops

A recent study found that 95% of skin penetration operators believe guidelines are needed, but only half follow them. Tattoo shop operators were more knowledgeable about infection control than others. Barriers to compliance include client perceptions and busy schedules.

NASA's new spacecraft tool reveals massive Jupiter gas cloud

The cloud's mass indicates that Europa faces more severe radiation consequences than previously thought, wielding significant influence on Jupiter's magnetosphere. The discovery uses innovative ENA imaging technique to visualize the three-dimensional structure of planetary space environments.

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.

Guardian of the genome, role for ATR revealed

A new study reveals that ATR kinase plays a crucial role in maintaining genome integrity by regulating cell cycle checkpoints and preventing DNA damage. The study shows that ATR is essential for ensuring cells leave the cell cycle without DNA damage, which can lead to diseases such as cancer.

Study links risky teen behaviors to heavy dose of rap music videos

A recent study found that adolescents with high exposure to rap music videos were 3 times more likely to hit a teacher and twice as likely to have multiple sex partners. The researchers also discovered that frequent viewers of rap videos were more likely to acquire an STD, use drugs, and engage in other risky behaviors.

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.

Absence, disability are big chunk of health-care costs

A study of six employers found that employees cost $3,524 a year in average healthcare costs due to physical health conditions. Heart disease was the most expensive condition at $236 per employee, followed by high blood pressure at $160 per employee.

Infertility and cancer linked to late stage repair defects

A study reveals that EXO1 is essential for both male and female germ cell meiosis, highlighting its role in fertility. Mice lacking Exo1 function developed tumors and experienced severely depleted sperm levels, suggesting a link between EXO1 and cancer.

Should mobile phones be allowed in hospitals?

A recent study suggests that newer mobile phones with improved handhold technology pose less risk to medical equipment. The researchers argue that a complete ban on mobile phone use in hospitals is no longer justified, and that patients' personal devices should be allowed in certain 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.

Scientists get first close look at stardust

Researchers discovered six grains of stardust outside our solar system, including crystalline grains that contradict established theories. The study found that stardust is surprisingly common in interplanetary dust particles, suggesting it comes from primitive bodies.

Stanford research points to chance as cause of genetic diseases in Ashkenazi Jews

Researchers found that mutations causing lysosomal storage diseases are no more common than other inherited diseases in the Ashkenazi Jewish population, indicating a lack of selective advantage. The study suggests that these disease-causing mutations were present in the ancestors of Ashkenazi Jews and were passed down through generations.

Ethnic bias in leading medical journals

The Lancet Commentary highlights the need for a radical transformation to reverse deeply embedded ethnic biases in leading medical journals. The journals prioritize research from the rich world, neglecting the health priorities of poor countries, and this bias affects the range of public debate.

Researchers pinpoint cause of inherited form of heart failure

Researchers have pinpointed a genetic defect in the phospholamban protein as the cause of inherited dilated cardiomyopathy. The discovery may lead to targeted treatment for this disorder, which affects 4.7 million Americans and costs $17.8 billion annually.

Meta Quest 3 512GB

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

Downward trend in UK deaths from CJD

The number of UK deaths from vCJD has been declining, with a stabilization in the rate of mortality. The disease's mortality rate is no longer increasing exponentially, but further confirmation is needed to determine if the epidemic is in permanent decline.

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.

WWII discovery may counter bioterrorists

Researchers have rediscovered a World War II era antidote for Lewisite, a chemical warfare agent that causes immediate pain and blistering. The treatment, BAL, can remove heavy metals such as arsenic, copper, and lead from the human body.

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.

Scientists identify same gene in mice, humans leading to heart failure

A team of researchers has identified a genetic mutation in phospholamban that disrupts calcium regulation in the heart, leading to dilated cardiomyopathy and heart failure. The discovery provides new insights into the mechanisms underlying heart failure and holds promise for future treatments.

Mutant protein linked to heart failure

Researchers found a mutant protein, phospholamban (PLN), that disrupts calcium signaling in heart muscle cells, leading to contractile dysfunction and heart failure. The study provides insight into the fundamental signals that tip a diseased heart into failure.

A new way to compare human and other primate genomes

Scientists have developed a powerful new technique called phylogenetic shadowing, enabling them to study biological traits unique to the primate family. This allows for better understanding of humans by comparing with apes and monkeys.

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.

Contributions to German-Japanese cooperation

Physicists Wolfgang Knoll and Shigemasa Suga have been recognized for their contributions to German-Japanese cooperation. The Eugen and Ilse Seibold Prize, awarded by the Deutsche Forschungsgemeinschaft, honors their collaborative research in exotic nano materials.

Time to lift the ban on mobile phones in hospital?

Advances in handheld technology have reduced the risk of interference with medical devices, while a decade after its introduction, there is still no concrete evidence of harm to patients. As a result, hospital trusts may reconsider their mobile phone policies.

Student knowledge of evolution deficient

A considerable proportion of college graduates are unfamiliar with evolutionary principles, a study suggests. Researchers found that students with extensive science courses still exhibit similar deficits in understanding evolution.

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.