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Science News for March 14, 2000


Warmer climates favour the birth of boys

Research analyzing births in Malta and Western Europe from 1890 to 1995 found a strong association between lower birth rates for boys and colder climates. The study suggests that warmer climates favor the birth of boys, possibly due to temperature affecting fertility and sex ratios at birth.

SourceBMJ Specialty Journals·JournalJournal of Epidemiology and Community Health·DateMar 14, 2000

'Biodiesel' fuel could reduce truck pollution

Researchers found that biodiesel fuel reduced carbon monoxide and particulate matter emissions by 12-14% and 25%, respectively. The lower oxygen content of biodiesel also helped reduce hydrocarbon emissions.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateMar 14, 2000
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.

Largest study finds evidence of association between EMFs and exposed worker suicide

A large US-based study found a distinct association between low-frequency electromagnetic field (EMF) exposure and increased suicide risk among electric utility workers. The study, published in Occupational and Environmental Medicine, suggests that EMF exposure may contribute to depression and suicidal behavior, particularly among youn...

SourceUniversity of North Carolina at Chapel Hill·JournalOccupational and Environmental Medicine·DateMar 14, 2000

Vaccine study to target bioterrorism threat

A Saint Louis University School of Medicine Center for Vaccine Development study will focus on the effectiveness of diluted doses of Dryvax, a smallpox vaccine. The goal is to increase the available stock by up to 100 fold, which could improve the nation's ability to protect citizens in the event of a bioterrorism attack.

SourceKupper Parker Communications·DateMar 14, 2000

NIAID researchers discover why some HIV-infected people don't develop AIDS

Scientists identify a feature common to the immune systems of long-term nonprogressors that enables them to resist disease. The discovery links HLA B*5701 gene to immune resistance in HIV-infected individuals, offering new insights into mechanisms of immune defense.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalProceedings of the National Academy of Sciences·DateMar 14, 2000

Link between suicide and exposure to magnetic fields

Research suggests that prolonged exposure to low-frequency electromagnetic fields may increase the risk of suicide. The study found a significant association between electromagnetic field exposure and death from suicide, particularly among those with high levels of exposure.

SourceBMJ Specialty Journals·JournalOccupational and Environmental Medicine·DateMar 14, 2000

Tough standards boost high school dropouts

A study by Cornell University economists finds that stricter high school graduation requirements can result in a 3-7% increase in dropout rates, affecting 26,000 to 65,000 students nationwide. Higher course graduation requirements are associated with higher attrition rates, dropout rates, and individual probabilities of dropping out.

SourceCornell University·JournalEconomics of Education Review·DateMar 14, 2000
Apple iPhone 17 Pro

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

Effectiveness of breast cancer support groups mediated by spousal support

Participation in breast cancer support groups can help women cope and function better when their spouses are not supportive. However, for those with adequate support at home, peer-discussion groups may worsen daily functioning. The study suggests that exposure to weekly discussions may re-evaluate relationships or spur conflict at home.

SourceCenter for Advancing Health·JournalHealth Psychology·DateMar 14, 2000

ENBREL (etanercept) dramatic advancement in treating juvenile rheumatoid arthritis

A study conducted by researchers at Cincinnati Children's Hospital Medical Center shows that nearly 75 percent of children with severe juvenile rheumatoid arthritis respond dramatically to ENBREL (etanercept). The drug eases joint pain and swelling, enhances mobility, and improves disease activity for patients.

SourceCincinnati Children's Hospital Medical Center·JournalNew England Journal of Medicine·DateMar 14, 2000
Meta Quest 3 512GB

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

Comprehensive study reveals no systemic breast implant dangers

A large-scale study by the University of North Carolina at Chapel Hill found no connection between silicone breast implants and connective tissue diseases. The research, published in the New England Journal of Medicine, included data from 757 studies and analyzed 9 cohort studies, 9 case-control studies, and 2 cross-sectional studies.

SourceUniversity of North Carolina at Chapel Hill·JournalNew England Journal of Medicine·DateMar 14, 2000

Time important in transporting critically injured to trauma centers

A new study finds that critically injured patients who arrived at trauma centers via private transportation had similar mortality rates, hospital stays, and complications as those transported by emergency medical services (EMS). However, they tended to arrive at the center more quickly following injury, which was associated with better...

SourceJohns Hopkins Medicine·JournalArchives of Surgery·DateMar 14, 2000
Fluke 87V Industrial Digital Multimeter

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

Hospital stays of three days for uncomplicated heart attack

Researchers at Duke University Medical Center found that almost 60% of patients with low-risk heart attacks do not experience complications beyond three days. While shorter stays may save resources, the study suggests that the additional day is often unnecessary and costs hundreds of millions of dollars annually.

SourceDuke University Medical Center·JournalNew England Journal of Medicine·DateMar 14, 2000

Scientists clarify much-sought enzyme, pave road to cancer therapy

Researchers at Johns Hopkins describe fundamental shape of telomerase molecule in mammals and other vertebrates, identifying four common areas highly involved with the enzyme's working. This new information may prompt approaches to inhibit the enzyme, which is active in cancer cells and contributes to their continuous cell division.

SourceJohns Hopkins Medicine·JournalCell·DateMar 14, 2000

Comprehensive heart failure teams reduce health care costs

A new cost analysis at Duke University Medical Center found that comprehensive heart failure teams can reduce healthcare costs by over one-third. By shifting care to outpatient visits, these teams improve the effective use of medications, particularly newer agents, leading to a 37% decrease in total treatment costs.

SourceDuke University Medical Center·DateMar 14, 2000
Celestron NexStar 8SE Computerized Telescope

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

Divorce and separation double risk of suicide in men

Research in the Journal of Epidemiology and Community Health found that divorced and separated men are more than twice as likely to commit suicide as married or partnered men. The study analyzed data from a long-term US research project, which included around 472,000 men and women.

SourceBMJ Specialty Journals·JournalJournal of Epidemiology and Community Health·DateMar 14, 2000