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Science News Archive 2003 - Page 54


Page 54 of 108

Salk scientists identify pathway that determines when plants flower

Researchers discovered a specific protein, PFT1, that triggers flowering in Arabidopsis plants under suboptimal light conditions. The study's findings have implications for improving crop yield and addressing world hunger, particularly in regions where malnutrition is prevalent.

SourceSalk Institute·JournalNature·DateJul 1, 2003

Air dried sperm could allow home storage

A new air-drying technique allows stored sperm to be transported without special equipment, relieving laboratories of sperm care. This method also reduces the risk of HIV transmission and gives owners more control over disposal decisions.

SourceEuropean Society of Human Reproduction and Embryology·DateJul 1, 2003
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

NASA experiments validate 50-year-old hypothesis

Researchers used NASA's Electrostatic Levitator to prove a 50-year-old hypothesis on nucleation, a process crucial for materials and biological systems. The study showed that liquid metals resist turning into solids due to an atomic 'nucleation barrier', a fundamental mismatch in atom arrangement.

SourceNASA/Marshall Space Flight Center News Center·JournalPhysical Review Letters·DateJul 1, 2003

Mediterranean fishery recovers, thanks to manmade pollutants

The Egyptian Mediterranean Sea fishery has recovered due to increased phosphorus and nitrogen in urban waste water, changing the ecosystem's productive engine. This shift has important consequences for lower food web structure and larval fish.

SourceUniversity of Rhode Island·JournalAMBIO·DateJul 1, 2003

First steps to EMBO research awards agreed by the EMBC

The European Molecular Biology Laboratory (EMBL) and EMBO have agreed on a framework for cooperation, paving the way for formal agreements among member states. This development is expected to strengthen bioscience research in Europe, with the aim of supporting innovative projects and promoting collaboration.

SourceEuropean Molecular Biology Laboratory·DateJul 1, 2003
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.

Translate this!

Researchers at USC's Information Sciences Institute built a state-of-the-art machine translation system for Hindi in less than a month, achieving all aspects of the DARPA's 'Surprise Language' project. The system uses statistical models to find the most likely translations and can query Hindi databases using English questions.

SourceUniversity of Southern California·DateJul 1, 2003

Fibroleukin at fault in viral hepatitis

Researchers found that fibroleukin is a prothrombinase that contributes to the development of thrombosis in viral hepatitis. The study suggests a potential link between fibroleukin and the progression of viral hepatitis, highlighting the importance of further investigation into this area.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 1, 2003

Prophylactic surgery greatly reduces cancer risk, but by how much is unclear

Studies on prophylactic surgery for women with BRCA1/2 mutations show a significant reduction in breast and ovarian cancer risk. However, potential biases in study designs, such as confounding by indication and familial-event bias, may lead to underestimation of risk reduction.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateJul 1, 2003
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.

Standard depression treatments found effective for low-income minority women

Researchers at UCLA Neuropsychiatric Institute and Georgetown University Medical Center found medication and cognitive behavioral therapy effective in treating depression among low-income minority women. Sixty percent of participants were at or below federal poverty guidelines, with many experiencing abuse and domestic violence.

SourceUniversity of California - Los Angeles·JournalJAMA·DateJul 1, 2003

Risk of ectopic pregnancies after IVF declines with age in women with tubal disease

A study by Elizabeth Asung found that the risk of ectopic pregnancies after IVF-ET decreases with age in women with tubal disease. This is a surprising finding, as the risk typically increases with age in the general population. The study analyzed data from 97,240 women aged 18-50 who underwent IVF between 1991 and 1999.

SourceEuropean Society of Human Reproduction and Embryology·DateJul 1, 2003

Seed dormancy may hold the key to fighting weeds

Scientists investigate rice genome for clues on seed dormancy, a key trait to fight preharvest sprouting. They develop populations segregating for dormancy and identify genetic attributes associated with heritability.

SourceAmerican Society of Agronomy·JournalCrop Science·DateJul 1, 2003

Cancer researchers describe new class of angiogenesis proteins

Scientists have identified a new class of proteins that promote angiogenesis, the formation of new blood vessels. Del-1 protein, discovered four years ago, has been found to be stable and continually stimulate angiogenesis. The researchers hope to use this knowledge to develop therapies that can inhibit angiogenesis in cancer.

SourceUniversity of California - San Diego·JournalJournal of Clinical Investigation·DateJul 1, 2003

Circadian influence in plants more widespread than previously thought

Researchers found new regions of the genome under circadian control using a technique called gene trapping, contradicting accepted dogma. The study suggests that clock-controlled mRNA synthesis may be more common than previously estimated, potentially leading to improved crop productivity and resistance to stressful conditions.

SourceDartmouth College·JournalPLANT PHYSIOLOGY·DateJul 1, 2003
Apple iPhone 17 Pro

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

Protecting vessel loss in the eyes of premature infants

Researchers discover PlGF-1 stabilizes vessel growth in premature infants, preventing retinal detachment and blindness. The study suggests a promising therapeutic agent to prevent oxygen-induced vascular degeneration in ROP.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 1, 2003

NIMH awards $22.6 million for Center for Collaborative Research on Mental Disorders

The NIMH has awarded $22.6 million to a new Center for Collaborative Research on Mental Disorders, aiming to advance understanding of genetic origins of mental health conditions such as autism and schizophrenia. The center will facilitate data sharing and analysis to accelerate gene discovery and develop novel therapeutic targets.

SourceNIH/National Institute of Mental Health·DateJul 1, 2003

Other highlights of the July 2 JNCI

Researchers found that high zinc intake was associated with an increased risk of advanced prostate cancer, but not with lower doses. The studies also failed to find evidence of simian virus 40 (SV40) DNA in non-Hodgkin's lymphoma samples.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateJul 1, 2003
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.

Standard depression treatments found effective for low-income minority women

Researchers found that medication and cognitive behavioral psychotherapy (CBT) treatments significantly alleviated symptoms of depression in young Latinas and African-American women. The study, funded by the National Institute of Mental Health, confirmed that standard treatments can be effective for low-income minority women.

SourceGeorgetown University Medical Center·JournalJAMA·DateJul 1, 2003

Medication and psychotherapy treat depression

A new study finds that pairing medication with intensive outreach and encouragement significantly reduces depressive symptoms and improves daily functioning among low-income, minority women. The treatment approach was most effective for this population compared to traditional care.

SourceNIH/National Institute of Mental Health·JournalJAMA·DateJul 1, 2003

Full fat milk and butter may help prevent asthma

Research found that daily consumption of full cream milk and butter was associated with lower rates of asthma and wheeze in pre-school children. Antioxidants and other micronutrients in these products may play a role in this beneficial effect.

SourceBMJ Group·JournalThorax·DateJun 30, 2003
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.

Computer vision study links how brain recognizes faces, moods

A computer vision study reveals that the brain processes facial recognition and emotional expression in linked neural pathways. The researchers developed a model that explains how humans recognize familiar faces and emotions, which can be applied to create more accurate face-recognition systems.

SourceOhio State University·JournalVision Research·DateJun 30, 2003

Mechanism found that weakens caregivers' immune status

A new study led by Janice Kiecolt-Glaser and Ronald Glaser found that caregivers of chronically ill patients experience prolonged immune disregulation, increasing their risk for age-related diseases. The research suggests that chronic stress and caregiving duties can have lasting effects on the immune system.

SourceOhio State University·JournalProceedings of the National Academy of Sciences·DateJun 30, 2003
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.

Spanish fertility experts bring hope of avoiding serious complication of assisted reproduction

Spanish fertility experts have found a protein called Vascular Endothelial cadherin linked to ovarian hyperstimulation syndrome. The study suggests that modulating the way ovaries are stimulated can reduce the risk of severe OHSS. Researchers propose a novel approach, 'coasting', which enables treatment cycles to continue with less risk.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 30, 2003

Method used by enzymes in development of colon cancer described by UCSD researchers

UCSD researchers define multiple steps initiated by COX-2 enzymes, including cyclic adenosine monophosphate and Inhibitors of Apoptosis, leading to suppressed cell killing and uncontrolled growth. The study also explains how aspirin and NSAIDs can reduce colon cancer incidence by inhibiting COX-2.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateJun 30, 2003

Scientists find potential stem cells in amniotic fluid – a new source?

Researchers have identified a subgroup of cells in amniotic fluid that express the protein Oct-4, a key marker for human pluripotent stem cells. These cells have shown potential to differentiate into nerve cells and could potentially replace embryonic stem cells, reducing the need for human embryos.

SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateJun 30, 2003

Postmortem guidelines are frequently not followed

A study at Royal Hallamshire Hospital found that most death certificates were completed by junior medical staff, with only a third issued by senior members. Necropsy rates have declined since 1993, raising concerns about the impact of recent 'organ retention scandal'.

SourceBMJ Group·JournalJournal of Clinical Pathology·DateJun 30, 2003
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.

For healthy diet, learning level counts more than earning level

A recent study found that individuals with higher education levels have better diet quality compared to those with lower education levels. The gap in diet between higher and lower educated groups may explain the disparity in health between socioeconomic groups in the US. Despite overall improvements in dietary habits, there are still s...

SourceCenter for Advancing Health·JournalAmerican Journal of Preventive Medicine·DateJun 30, 2003

Women's sexual behaviors may be closer to men's than previously thought

A new study by Ohio State University researchers found that some reported gender differences in sexual behavior might be due to women being less than honest when surveyed. Women's answers were closer to men's in certain areas of sexual behavior when they thought lies could be detected, while men's answers didn't change as much.

SourceOhio State University·JournalThe Journal of Sex Research·DateJun 30, 2003

Study shows long-term stress appears to damage caregivers’ immune systems

A study found that long-term caregivers experienced a rapid increase in proinflammatory cytokine levels, which continued even after the care recipient died. The research suggests that chronic stress can prematurely age the immune response and contribute to various age-related diseases.

SourceUniversity of North Carolina at Chapel Hill·JournalProceedings of the National Academy of Sciences·DateJun 30, 2003
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.

Cross talk between bacteria, host leads to E. coli infection

Researchers discovered that friendly bacteria and human hormones send cellular signals alerting E. coli to its location, leading to colonization and toxin release. Beta blockers may be developed to block this signaling system, preventing the bacteria from reaching the intestine.

SourceUT Southwestern Medical Center·JournalProceedings of the National Academy of Sciences·DateJun 30, 2003

Getting closer

Researchers at USC successfully simulated the somatic hypermutation process in vitro, closely mirroring its natural occurrence. This breakthrough enables the development of an in vitro system that can mimic the body's immune response.

SourceUniversity of Southern California·JournalNature·DateJun 30, 2003

Non-drug treatment for hypertension found effective in hard-to-control refractory hypertensives

A new study published in American Journal of Hypertension found that the Resperate device significantly reduced blood pressure in patients with hard-to-control refractory hypertension. The 8-week study demonstrated that daily self-treatment with the device reduced blood pressure, even in those taking multiple antihypertensive medications.

SourceInterCure·JournalAmerican Journal of Hypertension·DateJun 30, 2003

Researchers find a new way to potentially thwart anthrax

NYU researchers identify a gene, luxS, necessary for robust growth of the bacterium in test tubes. This discovery opens up new avenues for developing antagonists or inhibitors to control anthrax, a highly lethal bacterial infection.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalInfection and Immunity·DateJun 30, 2003
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.

Crawler reconnaissance

The Surf Zone Crawler, a fully autonomous amphibious vehicle, can follow search instruction plans, classify and map underwater mines in turbulent ocean surf zones. It has been used to search under the World Trade Center after 9/11, Afghan caves, and underwater wreckage off Normandy's beaches, with plans to deploy it in Iraq.

SourceOffice of Naval Research·DateJun 30, 2003

First study of children born after in vitro maturation indicates the technique is safe

A study of children born after in vitro maturation indicates the technique is safe. The children, aged two to four years old, achieved higher than average scores in developmental tests. They were found to be healthy with no notable exceptions, supporting the safety and effectiveness of IVM for women with polycystic ovarian syndrome.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 30, 2003

Strategies to boost women’s multivitamin use fall short

A study by Kaiser Permanente found that targeted interventions to increase multivitamin use among women of childbearing age had no significant long-term impact. Despite efforts to educate healthcare providers and pharmacists, the success of these interventions was hampered by inadequate implementation and lack of behavioral change.

SourceCenter for Advancing Health·JournalAmerican Journal of Preventive Medicine·DateJun 30, 2003

Stanford study homes in on bureaucratic research costs in economic analysis

A Stanford study found that nearly 18 months and 17% of the total research budget were spent on IRB activities, with no impact on human subject protection. The researchers hope to lead further examination of IRB procedures and weigh the cost and benefits of multi-center review for minimal-risk studies.

SourceStanford Medicine·JournalAnnals of Internal Medicine·DateJun 30, 2003
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.

Study: Hurricane Floyd boosted long-term use of N.C. emergency rooms, outpatient services

A study published in the American Journal of Public Health found that Hurricane Floyd caused substantial changes in healthcare patterns that lasted for over a year. The storm led to increased use of emergency rooms and outpatient services, particularly among Medicaid recipients, with estimated costs of $13.3 million.

SourceUniversity of North Carolina at Chapel Hill·JournalAmerican Journal of Public Health·DateJun 30, 2003

School lunch options crowd out fruits and vegetables

A recent study found that schools' a la carte options are displacing fruits and vegetables in the diets of middle schoolers. The researchers discovered that nearly four out of every five snacks sold through these programs were high-fat, while only low-cost and healthy items should be added to menus.

SourceCenter for Advancing Health·JournalAmerican Journal of Public Health·DateJun 30, 2003

Pretreatment increases liver transplant survival in rats

Researchers found that adding interleukin-6 to the preservative solution before transplantation significantly increased post-transplant survival of rats receiving organs with fatty degeneration. The treatment reduced cell death and improved liver function in steatotic livers, suggesting a promising strategy for addressing organ shortages.

SourceNIH/National Institute on Alcohol Abuse and Alcoholism·JournalGASTROENTEROLOGY·DateJun 30, 2003

Unemployment, access to guns among factors that turn domestic violence deadly

A study published in the American Journal of Public Health found that a combination of factors, including unemployment, access to firearms, highly controlling behavior, and separation, increases the likelihood of female murder by their partner. Researchers identified key risk factors that can help identify women at high risk of homicide.

SourceJohns Hopkins Medicine·JournalAmerican Journal of Public Health·DateJun 30, 2003
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.

Mouse model of schizophrenia could speed identification of new antipsychotic drugs

Researchers have identified a genetic variant in the calcineurin pathway that may be linked to schizophrenia. The study found that mice lacking this gene exhibited severe behavioral abnormalities similar to those seen in humans with the disorder, including hyperactivity and social withdrawal.

SourceHoward Hughes Medical Institute·JournalProceedings of the National Academy of Sciences·DateJun 30, 2003

Annals of Internal Medicine, tip sheet, July 1, 2003

The US Preventive Services Task Force recommends against use of beta-carotene supplements for cancer or cardiovascular disease prevention due to lack of benefit and potential harm. Lawsuits involving human subjects research are increasing, leading to more careful research and increased costs, according to experts.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJun 30, 2003

Gene may inhibit smokers from quitting

A specific gene variation, CYP2A6del, may inhibit smokers from quitting and protect against pulmonary emphysema. The study found that this allele was more common in heavy smokers who consumed fewer cigarettes and had a lower risk of developing lung disease.

SourceBMJ Group·JournalThorax·DateJun 30, 2003

Men, mammals, and machines

A team of Marine Corps reconnaissance swimmers, Navy SEALS, Explosive Ordnance divers, dolphins, and REMUS worked together to clear mines from Iraq's port. REMUS successfully located potential targets, allowing the dolphins to inspect and report back on its findings.

SourceOffice of Naval Research·DateJun 30, 2003
Celestron NexStar 8SE Computerized Telescope

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

ESHRE continues ban on human reproductive cloning

The European Society of Human Reproduction and Embryology (ESHRE) has reaffirmed its ban on human reproductive cloning due to significant practical and ethical risks. The organization believes that the generation of clones could infringe upon human dignity, increase genetic determinism, and restrict autonomy.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 29, 2003

Success and single embryo transfer in IVF

The study found that single embryo transfer (SET) does not reduce the chances of having a baby, with similar cumulative live birth rates to dual transfers when previously frozen embryos are included. SET also carried fewer risks to mothers and fetuses, with only three sets of twins out of 107 women.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 29, 2003

Scientists find what type of genes affect longevity

Researchers discovered that a single life-extending mutation affects multiple genes, including those controlling cellular stress response and metabolic processes. The study reveals the intricate connections between genetic pathways and their impact on lifespan.

SourceUniversity of California - San Francisco·JournalNature·DateJun 29, 2003