A study by Washington University in St. Louis reveals that similar lizard communities have evolved independently on different islands in the Caribbean, converging on island habitats. The research found identical habitat specialists on each island, suggesting a unique response to environmental pressures.
Researchers at UC Davis have successfully assembled a novel calixarene-porphyrin molecule, which shows promise for use in biological and chemical applications. The discovery could enable the development of efficient sensors and filters, including one to detect spoiled seafood.
Researchers found that El Niño years averaged only 49.3% of maximum intensity compared to 48.6% in non-El Niño years. However, this current El Niño may be different and could help solve the mystery behind increasing North Pacific hurricane intensities.
Researchers at Duke University Medical Center have developed a novel vaccine that uses RNA and dendritic cells to target cancer cells. The vaccine stimulates an immediate and sustained assault on human cells in test tube experiments, showing promise as a universal cancer vaccine.
A new liquid crystal assay developed at the University of California, Davis, can detect target molecules in test samples using minimal supplies and no electricity. The assay uses a microscopic landscape of hills and valleys to bend light and create colorful patterns, allowing for quick and easy analysis.
A study by Duke University Medical Center found that hostile women experienced significant increases in blood pressure and heart rate when discussing an emotional event, while low-hostile women showed no such response. The research suggests that emotional stress may not be harmful for everyone, but rather poses a risk to those already ...
A recent study found that two out of every three female veterinarians have reported accidental needlestick wounds, with side effects reported in 16.4% of cases. Vaccines were the most commonly injected substances, followed by anesthetics and euthanasia drugs.
A study by Duke University Medical Center found that hostile relationships with family members can increase stress and depression in heart disease patients. Researchers suggest a new approach to managing heart disease, including conflict resolution training to reduce emotional stress.
Researchers at Ohio State University have developed a technique to help surgeons determine the extent of tumor spread in pancreatic cancer patients. This method uses an antibody labeled with radioactivity to detect cancer cells, potentially improving treatment outcomes and reducing harm from extensive surgery.
A new study reveals that Hispanics are increasingly settling in the heartland and Sun Belt regions of the US, attracted by job growth and economic opportunities. The fastest growth occurred in states such as Georgia, Maryland, Nebraska, Iowa, Minnesota, and Nevada.
A University of Cincinnati computer model is being used to study the most cost-effective plans for species preservation. The model, developed by researchers Jeffrey Camm and Amy Ando, takes into account both species distributions and land values to provide a more flexible and economical approach.
Researchers at Ohio State University found that two simple tests can detect carpal tunnel syndrome with high accuracy. The square-shaped wrist and abductor pollicis brevis (thenar) weakness tests are recommended as part of the examination for CTS, which is often caused by repetitive motion like typing.
A new national study found that young men who switch jobs early in their careers don't suffer from lower wages, and may even earn more than those who stay in the same job. In contrast, women's wage gains are less clear, with some evidence suggesting they may face a 2% penalty for early job stability.
Researchers at Ohio State University have developed a new psychoeducation program that helps families deal with children diagnosed with depression, dysthymic disorder, and bipolar disorder. The program has shown early signs of improvement in parents' understanding of their child's mood disorder and family interactions.
NASA's Global Hydrology and Climate Center provides real-time geostationary satellite data, enabling users to view weather formations, temperature, winds, and precipitation in various regions. The center offers an interactive viewer with low-resolution animations and on-demand image sequences.
Researchers at Rice University have created a sensor that can detect even tiny amounts of formaldehyde and other gases in real-time, without sampling or laboratory analysis. The sensor boasts several attributes, including high selectivity, speed, portability, and compact size, making it suitable for various applications, such as enviro...
Mathematicians at Ohio State University discovered two new electrochemical activity patterns in brain cells, which may help explain normal sleep changes and nervous system disorders like epilepsy. The research reveals that inhibitory signals can produce smooth waves, contrary to previous assumptions.
As the electric industry transitions to a competitive system, consumers can expect lower electric bills due to increased efficiency and market forces. State regulators will play a crucial role in ensuring that consumers are informed about their rights and responsibilities.
The Institute of Food Technologists (IFT) has selected nine professionals as its 1998 Fellows, recognizing their achievements in the field of food science and technology. The honorees include experts from academia, industry, and government, who have demonstrated a minimum 10-year record of accomplishment in their respective fields.
A team of researchers at Ohio State University has developed a new type of paint that changes color when it detects corrosion on the metal beneath, revealing tiny pockets of damage as shallow as 15 micrometers. This innovative material could help maintenance crews identify and address corrosion issues earlier, reducing the need for cos...
The Sandia chuck uses a thin layer of helium gas to cool silicon wafers, utilizing electrostatic attraction to seal the wafer to a bottom plate. The device features a patterned silicon wafer with tiny islands that support the wafer and allow for rapid clamping and release.
Anthropologist David Price warns that world population's dire Malthusian 'correction' is inevitable due to finite resources. Despite progress in measures to prevent overpopulation, the stakes are higher now than ever, with proportionately more loss expected.
Researchers at Memorial Sloan-Kettering Cancer Center found that growth factors, known for controlling immune cell production, also increase the ability of immune cells to take up vitamin C. This discovery sheds light on the connection between vitamin C and the immune system, showing how growth factors can boost immune function.
A nationwide study found a significant decline in HIV-related deaths and opportunistic infections from 1994 to mid-1997, largely due to the use of combination antiretroviral therapy including protease inhibitors. Prescription rates for combination therapy increased dramatically during this period.
A University at Buffalo study found that women typically travel six miles to shop, while men travel an average of 6.5 miles, highlighting the impact of time constraints on shopping decisions. The research suggests that retailers should consider the limitations faced by female customers when developing retail establishments.
Scientists have identified peptides substance P and neurokinin A as key components in the body's pain responses. The study suggests that these peptides work together to produce moderate-to-severe pain, offering a potential target for new pain treatments.
The Fiber and Electro-Optics Research Center at Virginia Tech has received a $9.6 million grant from the Naval Research Laboratory to develop new technologies in microelectronics and nanostructured materials. Researchers aim to create more efficient devices with improved electronic, optical, mechanical properties.
A UCSF research team has made a striking discovery that mild and intense pain are biologically distinct, involving different neurotransmitters. This knowledge could lead to the development of new drugs targeting these molecules to provide effective pain relief with lower morphine doses.
Researchers found that lower precombat and current intelligence were associated with PTSD symptoms among Vietnam veterans. Lower intelligence may lead to increased feelings of overwhelm and helplessness, increasing the risk for chronic PTSD.
The all-terrain wheelchair is designed to cross potholes, hobble over obstacles, and cruise along sandy beaches. It features powered rear wheels and robotic arms that anchor the chair like crutches or ski poles.
Research highlights girls' increased relational victimization, leading to social anxiety, loneliness, and self-restraint issues. The study underscores the importance of studying relational victimization for girls' mental health.
A NASA scientist has found a new puzzle in the sky, an X-ray pulsar that appears to burst twice every 'year' rather than once. Colleen Wilson discovered GRO J2058+42, which has no visible component and exhibits unusual behavior, suggesting it may be a binary star system with a type Be star and a neutron star in a lopsided orbit.
The study reveals human beta-tryptase is a ring-like tetramer with active sites facing a central pore. Its unique architecture explains many of its distinct biochemical properties and will facilitate understanding of its role in health and disease.
Scientists at Duke University discovered a genetic switch that governs prostate cancer progression. The switch controls the production of FGF-R2 receptors, which can lead to
A recent study found that brain-enriched hyaluronan binding protein (BEHAB) is a key factor in brain cancer cells' ability to invade healthy tissue. Researchers hope to develop therapies that block BEHAB's function or reduce its production, potentially slowing tumor progression.
Dr. Joseph Nagyvary discovers that 17th and 18th century Italian violin makers used brine-soaked wood, resulting in vibrant tonal quality. His chemically treated violins are praised by international concert violinists.
Researchers discovered a vast collection of ancient stone tools and fragments in the Sahara Desert, revealing clues about the seasonal inhabitants. The stone artifacts suggest that the nomads moved in specific patterns through the desert, possibly using cattle to transport heavy sandstone boulders.
A recent study published in JAMA found that only 3.3% of white women and 0% of black women with breast cancer had disease-related BRCA1 mutations. The researchers conclude that widespread screening is not necessary for the general American population, but may be beneficial for high-risk families.
Researchers at UNC-CH and Washington University found that only 3.3% of white patients carry the BRCA1 mutation, significantly lower than previous estimates. The study suggests that widespread screening is not warranted due to high costs and limited interpretability.
A new study from Cornell University and the National Center for Health Statistics found that 4% of Americans experience food insufficiency, including 6% of children and 14% of low-income populations. Many individuals without health insurance are forced to choose between paying for healthcare and feeding their families.
A new software program, EXAKT, uses mathematical models to determine the optimal time to replace or repair equipment based on performance data and economic factors. This allows maintenance managers to combine risk assessment and economic considerations in making informed decisions.
Researchers developed two time-saving strategies for drivers to find parking spaces: Pick a Row, Closest Space and Cycling. The first approach requires less driving but more walking, while the second is faster but with slightly longer distances.
A panel of leading research chemists will discuss new ways to fight disease, gene mapping and sequencing's impact on chemistry and medicine, and improving standard living through chemistry. Technologies like buckytube fibers and nanomaterials will also be explored.
Researchers at University of Toronto developed a more accurate glucose intolerance testing method, providing consistent results and reducing nausea. The new standardized test meal will help detect changes in blood sugar before signs of diabetes develop.
The ACS Industry Pavilion features presentations and workshops from renowned scientists, including Nobel laureate Julius Axelrod and pharmaceutical executives. The pavilion also addresses the future of the chemical industry through a panel discussion on trends and their impact on careers.
Industry analysts discuss studies on NAFTA's effects since its implementation, exploring trade increases and their causes. Current conditions suggest a positive impact on the chemical industry, with increased production, consumption, and investment among U.S., Canada, and Mexico.
The event brings together 60 elementary-age students from Dallas-area schools and 30 trained chemistry volunteers for an afternoon of hands-on WonderScience activities. The activities are linked to the National Science Education Standards, fostering long-term commitment to science literacy among young participants.
A prestigious panel will discuss the future of federal funding for research and development, with implications for chemistry research and the nation's status as a world technological leader. The panelists from government, academia, and industry will examine current efforts to double federal funding for research over the next decade.
Researchers have discovered a gene called ARF that attaches to and disables the MDM2 protein, helping to protect the body against cancer. This natural mechanism may be manipulated to treat cancer more effectively or detect it earlier.
A study found that soy protein with phytoestrogens significantly reduced atherosclerosis progression in postmenopausal monkeys, similar to mammalian estrogen therapy. The treatment also improved cholesterol profiles, including increased HDL levels and reduced LDL/VLDL levels.
Researchers discovered that syphilis increases HIV transmission by activating immune cells through bacterial membrane lipoproteins. This understanding could lead to treatments to slow HIV disease progression. The study found a plausible molecular explanation for why people with syphilis are more likely to transmit or contract HIV.
A new study reveals that body fat is significantly associated with increased blood pressure, particularly in women. Researchers found that those who gained more fat over time also experienced higher increases in blood pressure.
Research found genetic make-up plays a significant role in determining individual responses to cholesterol-lowering drugs like Lovastatin. A gene variant associated with unresponsiveness was identified, suggesting that 1 in 12 individuals may not benefit from the treatment.
A study finds that living in poorer communities is associated with worse health, even for individuals with high education and income levels. The research suggests that community characteristics play a significant role in determining health outcomes.
Researchers use high-tech Ground Penetrating Radar to uncover ancient shell middens, revealing Native American cooking practices and sea-level changes in the area. The technique allows for non-invasive exploration of saltwater marshes, providing new insights into the region's history.
Cornell University scientists demonstrate a concept that could be used in ultra-small electronic devices by isolating a single oxygen molecule and causing it to rotate on command. The experiment provided basic research information about the nature of the chemical bond formed when an oxygen molecule is adsorbed to a platinum surface.
A study found that nearly one in five organ donor families would reconsider donating organs if given the chance. Factors such as prior discussion with family members, education level, and religion influenced satisfaction with donation decisions.
A recent study found that soy phytoestrogens provided equivalent stroke-prevention benefits to standard Premarin therapy in postmenopausal monkeys. The treatment reduced internal carotid artery atherosclerosis by more than half, preventing the development of an 'atherogenic plasma lipid profile'.
Researchers at Harvard Medical School found that a protein wireing the developing brain also prevents nerve cells from entering off-limits areas, and plays a role in blood vessel formation. This convergence of two processes may lead to new insights into cancer research and embryology.
A recent study published by the American Heart Association suggests that sex differences in heart disease risk may be attributed to an enzyme called hepatic lipase. Hepatic lipase activity was found to be higher in men than women, and researchers believe this enzyme plays a crucial role in lipid metabolism.