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Science News for February 4, 2002


Researchers identify a key 'brake' of the immune response

Scientists have identified ILT3 and ILT4, a key pair of molecules that function as a brake for the immune response. Increasing their activity on dendritic cells may create tolerance to foreign tissues, while decreasing it can enhance the immune response against malignant cells.

SourceColumbia University Irving Medical Center·JournalNature Immunology·DateFeb 4, 2002

Safety of home births

A Canadian study finds that home births attended by midwives have comparable perinatal outcomes to hospital births, including lower rates of maternal infection and neonatal complications. However, the authors recommend ongoing monitoring for rare adverse outcomes such as hemorrhage and ventilator support.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 4, 2002
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.

Intensive training may not be as bad for young women as previously thought

Recent studies found no link between intense training and stunted growth or maturation in young female athletes. Instead, body size seems to be appropriate for the sport, with parents of gymnasts being shorter than average. Further research is needed to understand the effects of training on growth.

SourceBMJ Specialty Journals·JournalBritish Journal of Sports Medicine·DateFeb 4, 2002

Annals of Internal Medicine tip sheet Feb. 5, 2002

A large study of men's health habits found that a prudent diet significantly reduces the risk of developing type 2 diabetes. The study indicates that avoiding weight gain and eating a balanced diet may substantially reduce this risk, highlighting the importance of a healthy lifestyle in preventing the disease.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateFeb 4, 2002

Researchers identify gene in rare form of epilepsy

Researchers have identified a gene called LGI1 associated with a rare type of epilepsy characterized by auditory hallucinations and other symptoms. The discovery provides new insights into the cause of common epilepsy.

SourceColumbia University Irving Medical Center·JournalNature Genetics·DateFeb 4, 2002
Apple iPhone 17 Pro

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

High CO2 levels hamper nitrate incorporation by plants

Researchers found that elevated carbon dioxide levels hinder nitrate assimilation in plants, leading to reduced protein content and increased risk of malnutrition. The study suggests a shift from nitrate to ammonium fertilizers may be necessary to maintain crop yields under high CO2 conditions.

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2002
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.

Rapid weight gain in infancy may lead to obesity at age 7

Researchers found rapid weight gain during the first four months of life significantly associated with an increased risk of being overweight at age seven. The study also found that even a modest increase in weight gain of 100 extra grams per month resulted in a 25% higher risk of being overweight.

SourceChildren's Hospital of Philadelphia·JournalPEDIATRICS·DateFeb 4, 2002

Canada lags in use of blood conservation techniques

A study of 4535 medical records found that autologous blood donation programs were used in only 18.6% of patients, despite being eligible, and reinfusion of blood was used in just 2.4% of all cases. Experts recommend greater cooperation among anesthetists, surgeons, and transfusionists to improve blood conservation techniques.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 4, 2002

British public supports mercy killing

A survey of British public attitudes found strong support for mercy killing, with 84% in favour of doctors assisting patients to die. Those without religious convictions were more likely to back the practice, while people with strong faiths opposed it. The results suggest a shift in public opinion on the issue.

SourceBMJ Specialty Journals·JournalJournal of Medical Ethics·DateFeb 4, 2002

Organizations renew professionalism vows

Three influential organizations of internal medicine physicians unveil a new charter on medical professionalism, outlining three fundamental principles and ten definitive professional responsibilities. The charter aims to promote an action agenda for the profession, addressing challenges in healthcare delivery, technology, and globaliz...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateFeb 4, 2002
Celestron NexStar 8SE Computerized Telescope

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

Harlem residents suffer more from oral health problems

A study conducted in Harlem found that 30% of adult residents suffer from oral health problems, with those with public insurance only slightly more likely to receive care due to limited provider availability. The high rates of unemployment and lower household income may be contributing factors.

SourceColumbia University Irving Medical Center·JournalAmerican Journal of Public Health·DateFeb 4, 2002

Johns Hopkins scientists find brain's nose plug

Researchers at Johns Hopkins have discovered that a protein called CNGA4 helps the brain adapt to smells by plugging a channel in odor receptor cells. The study found that mice without this protein can't adapt to odors, and the electrical signal from these neurons stays constant over time.

SourceJohns Hopkins Medicine·JournalScience·DateFeb 4, 2002

Experts offer the skinny on search for healthy fat

Researchers at Purdue University recommend consuming omega-3 rich foods like fish, lean meat, fruits, and vegetables to balance fatty acids. Limiting omega-6 fat sources, such as processed meats and vegetable oils, can also help reduce chronic diseases.

SourcePurdue University·JournalEuropean Journal of Clinical Nutrition·DateFeb 4, 2002

Eat your veggies: Indirect anti-oxidants provide long-term protection

Researchers found sulforaphane's phase 2 enzymes protect cells against oxidants for up to three days, preventing damage from cancer, retinal degeneration, and other conditions. Eating large quantities of vegetables, especially cruciferous ones, helps fight disease by increasing antioxidant defenses.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2002
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.

Tether for water channels found: May impact research on brain swelling

Researchers have made a groundbreaking finding that may impact brain swelling research by discovering how the Aquaporin-4 protein is tethered to Syntrophin, leading to better understanding of the blood-brain barrier. The study's results suggest that AQP4 and Syntrophin play a crucial role in regulating water flow in the brain.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2002

MIT's robotic helicopter makes first acrobatic roll

The MIT team's X-Cell 60 model rotorcraft performed a 360-degree aileron roll autonomously, marking the first-ever achievement in its kind. The helicopter's small size and low cost make it an attractive option for military reconnaissance or aerial filming.

SourceMassachusetts Institute of Technology·DateFeb 4, 2002

Bodybuilders abusing prescription-only drugs bought on the Internet

A bodybuilder admitted to hospital with blackouts, abnormal heartbeat, and symptoms attributed to bromocriptine, a drug easily obtained online. Many professional bodybuilders use bromocriptine to burn fat during training, highlighting the ease of access to prescription-only drugs through the internet.

SourceBMJ Specialty Journals·JournalBritish Journal of Sports Medicine·DateFeb 4, 2002

Cave men diets offer insights to today's health problems, study shows

A recent study published in European Journal of Clinical Nutrition found that wild game meat and grass-fed beef contain a balance of essential fats, including healthy omega-3 fatty acids and lower levels of unhealthy omega-6 fat. This ratio is associated with reduced cholesterol levels and lower risk of cardiovascular disease.

SourcePurdue University·JournalEuropean Journal of Clinical Nutrition·DateFeb 4, 2002

The hidden danger of hockey

The study found that all participants exceeded their maximum heart rate target, with slow heart-rate recovery common among them. Dr. Murray Mittleman cautions against warning off players, instead suggesting regular exercise throughout the year to mitigate cardiac risks.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 4, 2002
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.