The Aerospace Medical Association has issued medical guidelines for air travel to help doctors advise patients with illnesses. These guidelines provide recommendations for patients with conditions such as pulmonary disease, asthma, and emphysema, emphasizing the importance of stable health before traveling.
A new technique developed by Dr. John Absher may help prevent strokes among Americans with high blood pressure. By adapting a space shuttle technique that simulates zero gravity, doctors can determine the risk of stroke for patients taking medication to lower their blood pressure.
A recent study revealed that 11% of the general population has silent cerebral infarcts, with current cigarette smoking and hypertension being significant risk factors. The findings suggest that these lesions may be associated with a poor prognosis in the general population.
A new study by researchers at UCSF AIDS Research Institute found that a short-course of antiviral drug therapy and high prevalence of HIV-positive women of child-bearing age can produce a cost-effective outcome. If drug prices are lowered to 25% of the industrialized world cost, treatment for 100 women could cost around $1,014.
A newly unearthed version of the Laozi (Tao-te ching), dating back at least 2,350 years, is being studied by 30 international scholars. The Guodian Laozi sheds new light on the debate about its authorship and the relationship between Daoism and Confucianism.
Emerging technologies in food processing, such as high pressure and biotechnology, promise to enhance food safety and nutrition. These methods can preserve nutrients better than traditional heat pasteurization, while also providing new antimicrobial systems for extended shelf-life.
Researchers developed a method to create ultrathin films of polyelectrolytes with a layered architecture, which retains two-dimensional conformations after hydrolysis. This allows for the creation of composite structures with tailored surface properties and chemical reactivity.
Research on aging presents a surprising finding: mortality rates decrease with age in various species. Studies have shown that death rates level off at around 105 years old for humans and even decline after age 110. This trend is observed across different species, including fruit flies, worms, and yeast.
Researchers have found that a left-handed woman's brain controls reading aloud and speaking with the left side, but writing with the right. This study compares split-brain cases to V.J.'s and suggests that spoken and written language evolved independently.
The symposium will discuss the benefits and risks of light to moderate alcohol consumption and the role of dairy foods in reducing colon cancer risk. Iron fortification of foods is also being debated as a way to address iron deficiency anemia.
The symposium will describe new packaging systems that interact with package contents or the package's internal atmosphere, controlling gases to delay spoilage. Active packaging may incorporate antimicrobial agents, antioxidants, and moisture scavengers for consumer convenience.
Researchers have uncovered 38 additional fossils that provide a more complete picture of Australopithecus anamensis, confirming its status as the most ancient known upright-walking human ancestor. The new discoveries reveal primitive features such as large canine teeth and sexual dimorphism.
The meeting explores hyperbaric oxygen therapy's potential in minimizing damage from strokes and preventing paralysis after spinal cord injuries. Dr. Mary Anne Frey will discuss the results of the Neurolab Space Shuttle Mission, while Sen. John Glenn will talk about his upcoming space-based research on aging.
The American Geophysical Union Spring Meeting will feature presentations on earthquake hazards, ocean science, and Mars research. Scientists will discuss recent discoveries and share insights on natural restoration of contaminated aquifers.
Scientists propose that interplanetary dust accumulation could have triggered gradual extinctions, such as the demise of dinosaurs, and influenced Earth's climate over long periods. The research challenges current understanding of the Milankovich Effect, which is believed to drive climate change on a 100,000-year scale.
The Institute of Food Technologists will address the safety and quality of home meal replacements at its annual meeting. Experts will discuss ways to ensure the safety and quality of these products using good manufacturing practices, natural antimicrobials, and temperature control.
The Institute of Food Technologists' Annual Meeting will explore ways to detect, identify, prevent, and control viruses and parasites in food and water. The symposium will also discuss rising antimicrobial resistance in pathogens, acid-resistant pathogens, and strategies for enhancing the safety of fresh produce.
Recent discoveries have revealed that Gamma-Ray Bursts originate from the most remote parts of the universe, releasing enormous amounts of energy in just 10 seconds. The high-redshift burst announcement adds to the body of research indicating these explosions are the most powerful in the Universe.
Researchers at Ohio State University have discovered that zebra mussels can colonize sandy and muddy substrates in Lake Erie, a finding that challenges previous assumptions about the mussel's habitat requirements. The study found that densities of some zebra mussel colonies exceed 20,000 animals per square meter.
Scientists at Columbia University detected the largest explosion ever witnessed, a gamma-ray burst, which occurred 12 billion years ago. The event released almost as much energy as the 10 billion trillion stars in the universe combined and was detected using a rapid series of phone calls between astronomers around the world.
Researchers discover that the CFTR protein acts as a receptor for Salmonella typhi, allowing it to be ingested and cleared from the body. This finding suggests that cystic fibrosis gene carriers may have protection against typhoid fever due to their abnormal CFTR protein.
A new study from the University of Washington found that generalists are more likely to provide primary care to elderly Medicare patients, suggesting an approach at the center of most managed-care plans. Specialists tend to restrict themselves to medical problems specific to their specialty and rarely immunize their patients.
A University of Toronto study found that 35% of all homes and 20% with children and daily smokers were smoke-free in 1996. Despite this, only 50% of homes with daily smokers had no smoking rules, highlighting the need for parent education programs to reduce exposure to environmental tobacco smoke.
A study found that teenagers who identify as gay, lesbian or bisexual are more likely to report engaging in multiple risky behaviors and starting them at an earlier age. These teens also experience higher rates of emotional distress, including missed school due to fear and physical threats.
Researchers at The Wistar Institute have identified a key role for the GA733 antigen in inhibiting colorectal cancer cell invasion. The discovery has led to the development of an antibody that increases survival rates for CRC patients.
Researchers at the University of Illinois have created a highly symmetrical molecular box with an internal volume of about 132 angstroms, opening new dimensions for host-guest chemistry. The boxes are easily dissolved and can be modified to be negatively or positively charged for future sensing technology applications.
A new study found that people who eat low-fat lunches compensate by eating more fat or carbohydrates at other meals, leading to similar daily fat and carbohydrate intake levels. The brain's biochemical signals play a major role in food choices, particularly where fat, carbohydrates, and total calories are concerned.
The first investigation of estrogen metabolism in prostate cancer will determine if differences exist between healthy men and those with the disease. The study aims to find potential new strategies to prevent this important disease.
According to a recent study, 80% of poisoning deaths in the US are caused by drugs, with opioids and cocaine being the leading causes. The death rate from poisoning increased by 25% between 1990 and 1995, with the peak age group being 35-44 years.
A slowdown in health spending growth is expected to have a significant impact on health workers and local economies. The shift in job composition within the health sector, towards lower-paying sub-sectors and jobs such as home health services, will exacerbate the issue.
Researchers identify neurotransmitter-triggered electrical activity as a key signal for synapse formation in embryonic spinal cord neurons. The activity is necessary for clustering glycine receptors, which are essential for inhibitory neurotransmission in the spinal cord.
The study found that blood cell precursors originate soon after mesoderm cells appear in the embryo, suggesting a new understanding of blood cell development. The discovery also revealed that definitive red blood cell precursors can be found in the yolk sac before they appear within the embryo.
Researchers are utilizing a jellyfish gene to develop more efficient methods for inserting desirable genes into sugarcane plants. The gene, known as green fluorescent protein (GFP), allows scientists to quickly identify the effectiveness of genetic modifications.
The new wall chart graphically illustrates the basic structure of the nucleus, recent discoveries, and future directions in nuclear science. It includes sections on the expansion of the universe, nuclear matter phases, radio-active decay, controlled nuclear energy, and applications of nuclear science.
The Pediatric Academic Societies have reported significant advancements in children's health, with studies revealing the safety of vaccines, successful interventions to reduce childhood obesity, and promising gene therapies. Researchers have also made progress in understanding the effects of cocaine exposure on babies and improving out...
Researchers tracked 290 children for three years, finding that those who remained with their mothers had better motor and neurological development compared to those placed in foster or kinship care. The study suggests that environment plays a significant role in the growth patterns of these infants.
A study found that state-funded child health insurance can reduce financial barriers to healthcare, but racial and ethnic minority groups still face non-financial barriers, such as transportation and appointment scheduling issues. Despite these disparities, satisfaction rates with the program are high across all groups.
A new study by UF researchers finds that more than 75% of babies exposed to cocaine in utero showed no major problems, contrary to earlier reports. The study dispels alarm surrounding prenatal cocaine exposure's devastating effects, suggesting subtle effects rather than severe anomalies.
The center will bring together leading cellular and molecular neuroscientists to focus on addiction from an interdisciplinary approach. It aims to understand how addicting drugs act on receptors and disrupt normal communication between nerve cells in the brain, with the ultimate goal of finding new therapeutic approaches for addiction.
Breast-fed infants who received iron-fortified foods from 4 to 6 months had higher mean iron intake and hemoglobin, hematocrit, and ferritin values than exclusively breast-fed infants. However, the percentage of infants with low hemoglobin did not differ significantly between groups.
Urban Heat Island Pilot Project measures city cooling with urban forests. Cities like Sacramento & Salt Lake City use trees to reduce surface heating, improving air quality & mitigating heat stress. The study helps develop planning strategies for cities worldwide.
The article provides expert guidance on infant feeding, highlighting the importance of individualized recommendations based on nutritional needs and growth patterns. The authors suggest a tailored approach to feeding, considering factors such as breast milk supplementation and introduction of solid foods.
Patients with long-standing Crohn disease in remission showed significant nutritional and functional deficiencies, especially in males with high prednisone doses. This study highlights the importance of comprehensive nutritional assessment over single-dimensional assessments.
Researchers at Washington University School of Medicine have shown that a compound called BAF protects newborn rats from brain damage. The findings suggest that administering BAF after the damaging procedure is just as effective as giving it ahead of time, and that it also protects when injected systemically.
Researchers have discovered an imaging agent called Altropane that visualizes nerve loss in Parkinson's patients, providing a faster and cheaper alternative to existing methods. The study suggests that Altropane can help identify presymptomatic patients for experimental treatments and track disease progression.
Researchers found naphthalene in termite nests, sparking speculation about its source. Termites may produce naphthalene through microbial action on food or soil, according to Dr. Henderson.
The symposium brings together experts to present on recent findings in the science of emotion, including how environment impacts brain development and can affect emotional health. Researchers will also share insights into the effects of early nurturing and experiences on emotional memory and trauma.
Researchers at Sandia National Laboratories are developing high-temperature electronics to improve geothermal energy production. This could reduce costs by eliminating the need for protective Dewar flasks, which currently add significant expense to drilling operations.
A study at Washington University School of Medicine found that 3-D models of the pelvis are more accurate than X-ray images in preparing surgeons to revise hip replacements. This added information helps with crucial planning stages for complicated surgeries, reducing complications and improving patient outcomes.
A massive gene study suggests that mammals first evolved around 100 million years ago during the Cretaceous era, much earlier than previously estimated. The research used genetic data from over 10,000 species to infer origin dates, contradicting fossil-based estimates that linked mammal evolution to mass extinctions.
Researchers found that the anterior cingulate cortex detects response competition and provides a signal to pay more attention and avoid errors. The brain's 'how you are doing' monitor may serve as an alarm system for executive control, preventing catastrophic mistakes.
Research reveals that bison grazing can increase plant species diversity in stressed grasslands, countering the effects of fire and fertilizer. By reestablishing grazing, scientists find that biodiversity can be retained in ecosystems impacted by human activities.
High-temperature superconducting materials have limited performance due to energy loss caused by defects and grain boundaries. A University of Wisconsin-Madison experiment found that designing better conductors with improved current flow is crucial for overcoming this barrier.
Fetal rat skin cells treated with hormone activators formed a competent barrier earlier than control groups, reducing water loss and increasing enzyme activity. This study suggests that hormone activators could be used to promote skin growth in premature infants.
A team of experts from Purdue University and other universities will develop computer programs to simulate advanced nuclear reactors. The research aims to investigate thermal-hydraulics and reactor safety under various conditions.
Researchers at Johns Hopkins Medicine developed a 'risk index' using patient survey data to predict undesirable outcomes in asthma patients. The study found that factors such as recent oral steroid use, high beta agonist puffs per day, and non-white race can indicate future attacks.
Researchers found that R-type channels control transmitter release in presynaptic terminals, contributing to fine-tuning synaptic activity. These high-voltage-activated channels are resistant to known blockers and have been identified through simultaneous recordings of Ca2+ influx and EPSC evoked by a single action potential.
Bosques Arauco's winning study utilizes operations research systems to improve efficiency and have a positive impact on forest plantations. The award recognizes outstanding work in operations research that has had a significant impact on the performance of the client organization, with notable annual savings.
Georgia court officials are using a new database to systematically pool information about criminal activity and other court-related matters. The database, designed by the Georgia Tech Research Institute, provides a wealth of case-related data that can help officials make more informed decisions.
Researchers solved Einstein's three-dimensional equations for gravitational waves using a CRAY T3E-136 system and ImmersaDesk virtual reality systems. The demonstration showcased an 8,000-kilometer transatlantic connection, with data transmitted at millions of bits per second.