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Science News Archive May 2004


Page 3 of 13

Researchers discover that a protein in grape skins can kill cancer cells

A study published in EMBO Journal found that resveratrol, a compound in grape skins, can starve cancer cells by inhibiting the action of NF-kB. This inhibition leads to apoptosis, or cell death, in cancer cells. Resveratrol's effectiveness against cancer is linked to its ability to block NF-kB's inflammatory response.

Are bacteria turning our own weapons against us?

Researchers discovered that bacteria have acquired a gene from animal immune systems, allowing them to evade host defenses. This finding has significant implications for vaccine development and our understanding of bacterial evolution.

Autistic children show outstanding musical skills

Research reveals that autistic children can access and analyze musical details more readily than typically developing children. A subgroup of participants achieved impressive scores, even without prior musical training.

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.

Mind the gap

A recent study by Rochon and colleagues found that many conditions or diseases common internationally are underrepresented in randomized controlled trials published in leading medical journals. In a related commentary, Jha and Lavery highlight the importance of delivering treatments already available to improve population health in dev...

Moving targets: when it comes to patterns, motion gets factored in

The study, led by Shin'ya Nishida, utilized the multi-slit viewing illusion and found that pattern perception is more impaired by a mask or adaptation stimulus moving in the same direction as the pattern. Observers can see fine spatial components that are theoretically impossible to recover without motion information.

Scaling friction down to the nano/micro realm

Researchers at NIST created a new technique to measure friction accurately in the nano- and micro-scale. The method helps designers produce more durable devices with moving parts by accounting for unintended scratching of surfaces.

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.

Vest and harness may protect fragile adults in car crashes

A team of Johns Hopkins seniors designed a vest filled with foam padding to absorb energy from car crashes, reducing chest compression by up to 17%. Their four-point harness system also minimized sternum deflection and dropped crash impact forces by 33%.

Early behavior problems linked with wheezing later in childhood

Researchers found children who developed wheezing symptoms after age 3 had significant behavior problems before, compared to those who never wheezed. The study suggests a possible common factor, such as genetics or parental smoking, that accounts for both wheezing and behavior problems in children.

51 globally threatened species get new lease on life in the Caucasus

The Caucasus region, home to 51 globally threatened species, will receive a significant boost for conservation efforts thanks to $8.5 million in grants from the Critical Ecosystem Partnership Fund (CEPF). The funding will support conservation efforts across six countries, including Georgia, Armenia, Azerbaijan, Russia, Turkey, and Iran.

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.

Doctor's neckties: a reservoir for bacteria?

Nearly half of clinicians' neckties contained disease-causing bacteria, posing a significant risk to patient health. The study raises questions about the benefits of wearing neckties in healthcare settings.

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.

Health care treatment differs by race

Researchers found that African-American and Hispanic outpatients with back pain were less likely to receive painkillers than white patients. The study attributes this disparity to racial stereotypes among physicians, suggesting a potential issue with racism in the US healthcare system.

Largest study of its kind finds male breast cancer on the rise

Researchers have found that male breast cancer incidence has increased by 26% over the past 25 years, with men being diagnosed at a later stage than women. The study also revealed differences in tumor biology, including higher rates of estrogen receptor-positive tumors in men.

U of MN establishes nation's first endowed chair in sexual health

The University of Minnesota has established the nation's first endowed chair in sexual health, aiming to promote science-based research and education. The new chair will provide important contributions to the field of public health, guided by principles of equity and social justice.

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.

Left brain damage may make people more vulnerable to infection

Researchers studying epilepsy patients who underwent brain surgery on either side found that those with left-brain surgery experienced decreased immune function, while right-brain surgery boosted immune response. The findings raise concerns about protecting patients from infection following strokes or left-brain surgery.

Exercising after menopause may help reduce bone loss

Exercise has been shown to improve physical fitness, lower back pain, and cholesterol levels in early postmenopausal women. After 26 months, the exercise group experienced significant increases in physical fitness and reductions in bone loss compared to the control group.

Physics tip sheet #42

Researchers have developed a technique to improve electromagnetic signal transmission in complex environments using time reversal, which may enhance cell phone communications. Additionally, studying competition dynamics in noisy systems reveals that flexible competitors can increase their prosperity by adjusting their adaptation rate. ...

New standard to help diagnose heart attacks

The National Institute of Standards and Technology (NIST) has issued a new clinical standard to help manufacturers develop and calibrate assays that measure specific protein concentrations in patient blood samples. This standard, SRM 2921, is expected to reduce variations in clinical test results by as much as 50-fold.

African-Americans more likely to die of colon cancer

A study found that African-Americans are 1.67 times more likely to die within five years and 1.52 times more likely to die within ten years after surgical treatment for CRC compared to Caucasians. Racial differences were most pronounced in patients with stage II disease.

Apple iPhone 17 Pro

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

Baby born from sperm frozen for record 21 years

A healthy baby boy was born to a couple after the father's sperm was successfully frozen for 21 years. ICSI technique used for fertilization, resulting in high motile sperm percentage after thawing. Long-term storage preserved fertility quality, offering hope for young cancer patients seeking family planning.

Delay in transfer to the ICU increases risk of death

A study found that delayed transfers to intensive care units (ICUs) increase the risk of death for hospitalized patients. Patients who received timely ICU transfers had better outcomes, with 55% less likelihood of receiving major medical interventions in the first six hours.

Diabetes increases deaths among people 65 and older

A recent study found that diabetes-related mortality may increase in relative importance among the elderly population, with a 10% per year mortality rate among those with diabetes. The study suggests that prevention of diabetes among the elderly should be a priority, as demonstrated by the Diabetes Prevention Program.

Obesity may affect accuracy of mammography

A recent study found that obese postmenopausal women are more likely to be recalled for additional tests after screening mammographies, with women in the obese category II and III groups being 31% more likely to be recalled. Obese women also experience a 20% increased risk of false-positive mammogram results compared to underweight and...

Fluke 87V Industrial Digital Multimeter

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

Safety of Canadian hospitals

The study found that 7.5% of hospital patients experienced adverse events, with 37% being preventable. Implementing gains in patient safety can be achieved through encouraging reporting, new technologies, and improved communication among caregivers.

Developing tools for reliable 'gene chip' measurements

A consortium co-led by NIST is developing standards for well-characterized RNA molecules to validate gene chip analyses. These standards will enable technology developers and researchers to assess the performance of their assays, improving the reliability of microarray measurements.

More news in the battle between the sexes

Studies show that foreign males from conflict populations are more costly to females, but benefits of sexual selection may outweigh costs at intermediate levels of conflict. The findings highlight the potential cost of sexual selection and generate a fitness load.

Air pollution especially harmful to lungs of obese children

Research reveals that air pollution has a debilitating effect on the lungs of obese children, with twice as strong associations compared to their normal-weight counterparts. The study found that increased inflammation due to obesity exacerbates the negative impact of air pollution on lung function.

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.

Learned social preference in zebrafish

Researchers found that zebrafish learn to prefer one fish color pattern over another based on their early experience with these patterns. This learned social preference has significant impacts on the survival and reproductive success of individual fish.

Older patients less likely to receive care in the ICU

A recent study of over 1 million Medicare beneficiaries found that older patients aged 90+ are significantly less likely to receive critical care in intensive care units (ICUs) compared to their peers aged 68-70. Treatment in an ICU appears to be just as effective for both ages, highlighting a possible disparity in care received by you...

Vaccines against foodborne disease on horizon

Researchers have developed a new vaccine strategy using live, crippled Salmonella bacteria that stimulate immunity to multiple pathogens. The vaccine protected mice 100% against lethal doses of both S. typhimurium and Listeria monocytogenes.

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.

Cancer research in Europe: A 'foundation' for the future

The European Society for Medical Oncology (ESMO) has launched a new charitable foundation with the goal of making the best treatment available to every cancer patient. The ESMO Foundation will provide much-needed funds for education, research, and patient care.

Antibiotic resistance risk from triclosan questioned

A recent study challenges previous fears that triclosan contributes to antibiotic resistance. Researchers found only two types of bacteria, E. coli and Klebsiella, developed resistance to triclosan in a laboratory setting.

Guideline evaluates treatment of infantile spasms

The American Academy of Neurology has released a guideline evaluating the treatment of infantile spasms, a severe form of epilepsy. The guideline recommends adrenocorticotropic hormone (ACTH) as a short-term treatment option, but notes that there is insufficient evidence to recommend optimum dosage and length of treatment.

Meta Quest 3 512GB

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

Small trial shows daclizumab add-on therapy improves MS outcome

A small trial found that daclizumab add-on therapy reduced the severity and number of brain lesions in patients with relapsing-remitting or secondary progressive multiple sclerosis. The treatment, which blocks the interleukin-2 receptor on immune cells, showed unexpected clinical benefits in a small group of patients.

Compound in salsa may fight food poisoning

A new study isolated a compound called dodecenal from fresh cilantro leaves, which is found in salsa, and showed it to be twice as potent as the antibiotic gentamicin at killing Salmonella. The researchers believe that eating more fresh salsa could help prevent foodborne illness.

Study may improve survival of transplanted livers

A recent study published in Hepatology suggests that using nitric oxide during liver reperfusion can protect transplanted livers from cell death, improving survival rates. Researchers found that nitric oxide blocks mitochondrial damage, a key factor in organ rejection and failure.

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.

NSF names eight distinguished teaching scholars

The US National Science Foundation has named eight distinguished teaching scholars, recognized for their innovative approaches to education. The scholars were awarded $300,000 grants over four years to work on new projects or continue existing work that benefits students and the scientific community.

People with low incomes more likely to develop brain tumors

A recent study by the American Academy of Neurology found that people with low incomes are at a higher risk of developing brain tumors. The study analyzed data from Michigan and found a significant difference in brain cancer rates between those with low incomes and those without, particularly among younger adults.

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.

Breast cancer in men increasing

The study found a significant increase in male breast cancer incidence over 25 years, with men being diagnosed at an older age than women. Larger tumor size and axillary lymph node disease were associated with shortened survival, while hormone receptor status and tumor grade did not have independent prognostic effects.

A better death: Hospitals need systematic process to heed patient' concerns

A study by the University of Toronto Joint Center for Bioethics found that patients' perceptions of care improved when medical staff solicited their concerns, with significant gains in symptom control, support, and pain management. The research suggests a simple yet effective approach to addressing subpar end-of-life care.

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.

Low-income Native American women suffer high rates of domestic abuse

A recent study found that low-income Native American women experience alarmingly high rates of domestic abuse, with over half reporting assault by a partner in their lifetime. The research highlights the need for targeted programs and services to address these disparities and prevent further harm.