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Science News Archive August 2001 - Page 3


Page 3 of 8

Energy in the 21st century: government policy and alternative sources

Researchers are exploring government policies to ensure a stable energy supply, including alternative sources like hydrogen, fuel cells, and alkaline fuel cells. Energy R&D spending is linked to energy-related patents, highlighting the need for increased investment in emerging energy problems.

SourceAmerican Chemical Society·DateAug 26, 2001

New food packaging technique improves quality, extends shelf life

A new food packaging technique using argon gas has been shown to extend the shelf life of foods by 25% and improve their overall quality, with some products seeing a 40-50% improvement. Argon replaces nitrogen, which causes food to oxidize and spoil, making it a safe and effective way to preserve food.

SourceAmerican Chemical Society·DateAug 26, 2001

Transracial adoptees psychological adjustment not as dependent upon their cultural identity as presumed, according to new study

A new study involving young adult transracial adoptees found that their exposure and competence in their birth culture are not necessary for good psychological adjustment. The study suggests that family and peer relationships, rather than cultural identity, may play a more significant role in shaping their mental health.

SourceAmerican Psychological Association·DateAug 25, 2001

Environment may play a role in whether youth benefit from sports participation, according to two studies

Two studies suggest that environment plays a significant role in whether youth benefit from sports participation. In one study, urban youth showed positive influences on self-esteem and social competence, while rural African American girls found sports involvement may increase delinquent behaviors and substance use. The findings highli...

SourceAmerican Psychological Association·DateAug 25, 2001
Fluke 87V Industrial Digital Multimeter

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

American Thoracic Society journal news tips for August (second issue)

Investigators found that children with OSAS had smaller airway volume, larger tonsil and adenoid tissue, which restricts airways. Work-related factors are linked to a higher prevalence of persistent asthma in 29% of males and 17% of females.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateAug 25, 2001

Newly designed carbon tubes could replace silicon in microchips

Researchers have developed a new circuit using hollow carbon nanotubes, which can switch between 'on' and 'off' states and perform logic functions. The design enables more complex circuits to be built, potentially replacing silicon in microchips within the next 10-15 years.

SourceAmerican Chemical Society·JournalNano Letters·DateAug 25, 2001
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.

Superexchange seen in molecular electronic switch broadens design possibilities

Researchers have discovered that a T arrangement in molecular electronic switches enables efficient communication between distant molecules, facilitating the on and off states of the switch. This finding broadens design possibilities for molecular photonics, solar energy conversion, and nanotechnology.

SourceWashington University in St. Louis·JournalThe Journal of Physical Chemistry·DateAug 24, 2001

UNC scientists develop new way to calculate stability of proteins

Researchers from UNC School of Medicine and Pharmacy have developed a new method to calculate protein stability, which could improve drug design and engineering. The approach uses computational manipulations to predict the effects of amino acid mutations on protein stability.

SourceUniversity of North Carolina Health Care·JournalJournal of Molecular Biology·DateAug 24, 2001

"Obesity," guide for primary care doctors, published

The American College of Physicians-American Society of Internal Medicine has released a comprehensive guide for primary care doctors on obesity diagnosis and management. Obesity rates increased by 30% between 1980 and 1994, carrying significant direct health care costs for the United States. The guide addresses key aspects of medical a...

SourceAmerican College of Physicians·DateAug 24, 2001
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.

The lands nobody wanted

Research reveals that US nature reserves are unevenly distributed across ecological zones, leaving many plant and animal species unprotected. The study suggests that involving the private sector in conservation strategies can help preserve America's biodiversity.

SourceEcological Society of America·JournalEcological Applications·DateAug 24, 2001

Fine needle biopsy accurate in the hands of trained practitioners, UCSF study finds

A recent UCSF study found that fine needle biopsy (FNAB) accuracy can be significantly improved with formally trained physicians. The researchers analyzed 927 women's medical histories and tissue samples, finding that less-well-trained practitioners were more likely to miss cancers due to errors in sampling.

SourceUniversity of California - San Francisco·JournalCancer Cytopathology·DateAug 24, 2001

NIMH scientists discover new details of HIV infectious process

Researchers discovered that HIV DNA serves as a template to produce viral proteins Nef and Tat, bringing CD4 T cells out of their resting state. Non-integrated HIV DNA contributes to disease progression, despite not producing new viruses.

SourceNIH/National Institute of Mental Health·JournalScience·DateAug 23, 2001

Breakthrough mouse model for Alzheimer’s more like human disease

A new double transgenic mouse model has been developed to study Alzheimer's disease, featuring both brain plaques and tangles associated with the condition. The model is expected to contribute significantly to knowledge about the course of the disease and aid in further development and testing of potential therapies.

SourceNIH/National Institute on Aging·JournalScience·DateAug 23, 2001
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.

UC Davis' first cloned calf born, succumbs three days later

Researchers at UC Davis successfully cloned the first calf using a skin cell from an adult cow, but unfortunately, the calf died just three days after birth. The cloning technique holds promise for improving meat and milk production, with ongoing research aiming to overcome existing challenges.

SourceUniversity of California - Davis·DateAug 23, 2001

Substantial resistance to HIV infection tied to genetic mutation

Researchers found that bisexual and homosexual Caucasian men with one copy of the delta-32 mutation have a 70% reduced risk of HIV infection compared to those without the mutation. The study, published in the Journal of Acquired Immune Deficiency Syndromes, provides insight into resistance to HIV infection among high-risk populations.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateAug 23, 2001
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.

Well preserved meteorite yields clues to carbon evolution in space

A team of researchers analyzed a rare, well-preserved meteorite found in Canada, revealing organic compounds with similarities to other known carbonaceous chondrites. The study suggests that the Tagish Lake Meteorite may represent an early stage in the evolution of complex carbon compounds in space.

SourceArizona State University·JournalScience·DateAug 23, 2001
Apple iPhone 17 Pro

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

UCSD researchers discover new role for immune-response enzyme

Researchers at UCSD have discovered a new immunological pathway involving the enzyme I-kappa-B kinase alpha (IKKa), which plays a crucial role in developing B cells and forming certain lymphoid organs. Blocking IKKa's action may offer a new approach to treating autoimmune diseases without compromising the immune system.

SourceUniversity of California - San Diego·JournalScience·DateAug 23, 2001

Cattle identified as source of Ugandan sleeping sickness outbreak

A recent outbreak of sleeping sickness in eastern Uganda may be attributed to livestock movement from another part of the country where the disease is endemic. The study found that over 50% of cattle traded at the market originated from areas with the disease, and that distance to the market was a significant risk factor for sleeping s...

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 23, 2001

Why burn coal when wind power is cheap and plentiful?

Wind power has dropped in cost to 3-4 cents per kilowatt-hour, making it less expensive than coal energy. Shifting from coal to wind could address health, environmental, and energy problems, including reducing greenhouse gas emissions.

SourceStanford University·JournalScience·DateAug 23, 2001
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.

Alcohol drinkers consume more calories and cholesterol than nondrinkers

A study of 72,904 French women found that those who consumed alcohol had a 29.5% higher calorie intake compared to non-drinkers, with protein and cholesterol intake also increased. Heavy drinkers were more likely to be smokers and experienced negative health effects.

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateAug 23, 2001

Abstention from filtered coffee may reduce heart disease risk factors

A study of 183 Norwegian participants found that abstaining from filtered coffee reduced total cholesterol and tHcy levels, while increasing folate levels. This reduction in risk factors may be attributed to the presence of terpenoids in coffee that are only partially removed during filtering.

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateAug 23, 2001
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.

Social class and weight history predict adult obesity

A study published in American Journal of Clinical Nutrition found that adult obesity is predicted by family social class and weight history. The research examined the relationship between body mass index (BMI) and social class across four generations. Early age at menarche was also linked to later obesity, while BMI at age 14 was a str...

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateAug 23, 2001

New combination therapy could reduce Ischaemia after heart attack

A new combination therapy has shown promise in reducing ischemic complications after a heart attack. The study found that combining full-dose tenecteplase with prolonged subcutaneous administration of enoxaparin resulted in significantly fewer endpoints compared to other treatments.

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 23, 2001

Breakthrough mouse produced with both lesions associated with Alzheimer's

Researchers at Mayo Clinic have successfully bred mice with both amyloid plaques and neurofibrillary tangles, the key pathologic hallmarks of Alzheimer's disease. The double transgenic mouse model provides a more complete representation of human AD and will enable researchers to test therapies aimed at preventing or halting progression.

SourceMayo Clinic, Jacksonville·JournalScience·DateAug 23, 2001
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.

Brown scientists identify Tagish Lake meteorite's origin in space

Researchers use reflectance spectroscopy to determine the meteorite's composition, providing clues about early solar chemical evolution and differing from any seen in meteorites so far. The findings were published by NASA's Johnson Space Center and Brown University, funded by grants from NASA.

SourceBrown University·JournalScience·DateAug 23, 2001

How brain cells “remember” their birth order

Researchers found that Drosophila neural precursor cells sequentially activate four different transcription factors, allowing them to maintain differences based on their time of birth. This 'memory' is crucial for normal brain development and may have implications for understanding human neural development.

SourceHoward Hughes Medical Institute·JournalCell·DateAug 23, 2001

Physical examination findings are important in predicting outcomes in heart failure, researchers report

Researchers found that patients with either a third heart sound or elevated jugular venous pressure were more likely to have progressive heart failure and subsequent hospital visits due to heart failure. The study highlights the importance of physical examinations in predicting outcomes for heart failure patients.

SourceUT Southwestern Medical Center·JournalNew England Journal of Medicine·DateAug 22, 2001

Social stress may trigger problems in immune system

A study found that socially stressed mice were twice as likely to die after infection with a compound than physically stressed mice. The researchers believe social stress intensified the immune response, leading to toxic shock and organ damage.

SourceOhio State University·JournalJournal of Neuroimmunology·DateAug 22, 2001
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.

Heavy metal stars

A team of Belgian and French astronomers have discovered three distant stars with extremely high Lead abundances, exceeding other elements heavier than Iron. This finding aligns with current stellar models predicting the buildup of heavy elements in stellar interiors.

SourceESO·JournalNature·DateAug 22, 2001
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.

ORNL, IBM pooling talents to examine diseases

The partnership aims to explore the impact of protein folding on diseases using IBM's Blue Gene research project and ORNL's supercomputing power. This effort will scale computer performance to petaflops, enabling breakthroughs in biology, climate science, and nanotechnology.

SourceDOE/Oak Ridge National Laboratory·DateAug 22, 2001

Brittlestars use crystal lenses to spot approaching predators unique “visual” system is the first of its kind to be discovered in animals inhabiting the earth today

Brittlestars, also known as serpent stars, possess a unique 'visual' system that enables them to detect shadows and escape from predators. Their skeletal elements feature crystal lenses that transmit light to their nervous system, allowing them to respond to light changes.

SourceAmerican Committee for the Weizmann Institute of Science·JournalNature·DateAug 22, 2001

Among the Mayas, writers for defeated kings met a cruel fate

Researchers have shed light on the brutal treatment of Maya scribes who supported defeated kings. The scribes' fingers were broken before they were executed, as part of a bizarre practice that muffled their ability to produce powerful texts. This practice highlights the importance of these scribes in Maya society.

SourceOhio State University·JournalAntiquity·DateAug 22, 2001

Prison population swells under Republican presidents, study says

A new study from Ohio State University finds that Republican presidents are associated with increased US prison populations. The research controlled for various factors and found a significant correlation between Republican administrations and rising prison rates.

SourceOhio State University·JournalSocial Science Research·DateAug 22, 2001
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.

Exploring the frontier of ultra-small electronics

Two Cornell University researchers are working on separate projects to develop new devices that could lead to huge increases in data storage and processing speed. George Malliaras is investigating the electrical properties of individual molecules, while Robert Buhrman is studying spin manipulation and quantum manipulation.

SourceCornell University·DateAug 22, 2001

Novel surface analyzer effective in detecting chemical warfare agents

Scientists use ion-trap secondary ion mass spectrometer (IT-SIMS) to detect chemical warfare agents like HD and VX at part-per-million levels. The technique offers increased specificity, speed, and minimal sample preparation, making it ideal for environmental restoration and national security applications.

SourceDOE/Idaho National Laboratory·JournalInternational Journal of Mass Spectrometry·DateAug 22, 2001

Playground bullies healthier than their victims

Research shows that children who bully others have fewer health problems than their victims, while those who are both bully and victim experience more physical and psychosomatic issues. Breaking the cycle of bullying in early primary school years is crucial to prevent long-term health problems.

SourceBMJ Specialty Journals·JournalArchives of Disease in Childhood·DateAug 21, 2001
Celestron NexStar 8SE Computerized Telescope

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

New model of staph drug resistance implicates unlikely protein

Researchers at Rockefeller University have identified a new model of staph drug resistance that implicates an unlikely protein. The study shows that the mecA gene confers resistance to methicillin and other antibiotics by coding for a different PBP, which is not destroyed by beta-lactam antibiotics.

SourceRockefeller University·JournalProceedings of the National Academy of Sciences·DateAug 21, 2001

Neurons implanted in stroke-damaged brain tissue show function, say University of Pittsburgh researchers

Researchers at the University of Pittsburgh Medical Center have successfully implanted LBS-neurons into patients with chronic stroke, showing a greater than 10% increase in metabolic activity in damaged areas. The surrounding area showed maintained or improved function, suggesting integration of the new neurons.

SourceUniversity of Pittsburgh Medical Center·JournalNeurosurgery·DateAug 21, 2001