A study found that ethnic differences affect the relationship between family environment and teen gang involvement, with black youth benefiting from more controlling parents and white/other youth increasing their involvement with gangs. Gang intervention programs should address both peer and parent relationships to be effective.
A scoring system characterized the men from pessimist to optimist, with optimistic men having a lower risk of coronary heart disease. Despite this protective effect, the researchers found no difference in mortality rates between optimistic and pessimistic men.
A recent study by Ohio State University researchers found that gay men tend to weigh the benefits and drawbacks of revealing their HIV status, with over half disclosing to family and 63% telling friends. The top reasons for disclosure included keeping others safe and seeking understanding.
The US FDA has approved Tracleer (bosentan) tablets as the first oral treatment for patients with pulmonary arterial hypertension. The medication works by blocking the effects of endothelin on blood vessels, improving exercise capacity and reducing symptoms. Regulatory reviews are ongoing in several countries.
Researchers found that people are more willing to take risks when confident in their knowledge and less likely to do so when unsure. This discovery has significant implications for various decision-making processes.
Simon C. Moss, a UH professor, has spent 40 years researching atomic-scale defects and their impact on materials properties. His work has led to breakthroughs in semiconductors, alloys, and thin films, earning him the Von Hippel Award.
Researchers at Johns Hopkins have developed a potential new screening test for prostate cancer by measuring the level of GSTP1 methylation in tissue samples. High levels of methylation were detected in 91.3% of early-stage cancers and 53.6% of precancerous lesions, suggesting its potential as an early diagnostic marker.
A new Stanford University study analyzed the costs and benefits of two treatments: implantable cardioverter defibrillators (ICDs) and the drug amiodarone. ICDs were found to be the most effective in preventing sudden cardiac death, but also came with the highest costs. Amiodarone produced intermediate benefits and costs.
A survey of over 400 doctors found that nearly a third would assist with lethal injections, highlighting the need for education on ethical guidelines and professional obligations. The study's authors warn that physicians' personal opinions on capital punishment may not align with their professional duties.
A team from Arizona State University has questioned the evidence for bacterial life in a Martian meteorite, citing limitations in microscope technology and data selection. The researchers argue that the shapes of magnetite crystals found in the meteorite are not uniquely identifiable with bacteria.
Researchers identified a mutated WFS1 gene responsible for low-frequency sensorineural hearing loss, which can lead to severe hearing aids requirements. The discovery may be common in the general population and could connect with other conditions like Meniere's Disease.
A new pilot study aims to investigate whether treating periodontal disease can reduce the risk of heart attacks. The three-year study will follow approximately 900 patients who have had a heart attack or are at high risk of one, comparing those who receive aggressive treatment for gum disease with those who do not.
A new study found that children from poor families with depressed mothers experience delays in cognitive and motor development, while middle-class households offer some protection. The effects of maternal depression on boys and girls differ, with moderate depression in affluent families resulting in lower cognitive scores.
The TIMED mission will study the Mesosphere and Lower Thermosphere/Ionosphere region, crucial for understanding space weather's effects on communications and satellite tracking. Ground-based instruments will be used to conduct a global study of this area.
Researchers measured the force required to overcome tissue-needle connection during acupuncture needling, finding a significant pullout force when needles were rotated. The study suggests that layers superficial to muscle may be involved in the body's response to acupuncture, with future research focusing on connective tissue's role.
A Virginia Tech team has won a grant to develop mathematically rigorous decomposition theories for solving large-scale design problems on massively parallel supercomputers. The project aims to reduce communication bottlenecks and improve concurrency in the design process.
Individuals with severe inattention and hyperactivity symptoms may use tobacco as self-medication to manage their symptoms. The study suggests that screening participants in smoking cessation programs for these symptoms could identify smokers who need additional intervention and tailor treatments to address their specific needs.
A NASA-funded study found that glacier melting can shut down North Atlantic Deep Water production, leading to a reduced Gulf Stream and cooling Western Europe. The study suggests that freshwater additions from increased rain and snow could cause this phenomenon in the future.
A new study from the University of Toronto shows that consuming carbohydrate, fat and protein drinks of equal calories improves verbal recall in elderly individuals. The positive effects on memory are explained by an evolutionary perspective, suggesting specific types of food energy enhance specific aspects of brain function.
The University of Colorado at Boulder has acquired two state-of-the-art electron microscopes, enabling researchers to image cellular structures in three dimensions at unprecedented resolution. This advancement is made possible by a suite of complementing computers that run programs developed by CU-Boulder researchers.
Researchers from the University of Pennsylvania have identified a gene called CREB that plays a role in regulating rest's rejuvenating effects. The study found that CREB activity is inversely related to the physiological urge for sleep and that blocking this activity increases the need for sleep after a period of wakefulness.
A new study found that 41% of physicians would perform at least one action proscribed by the AMA's ethics guidelines, while 25% would perform five or more actions. The study suggests that some physicians are morally confused about their role in capital punishment.
The University of Michigan School of Education has received a $175,000 grant from the Goldman Sachs Foundation to evaluate and support programs promoting educational excellence globally. The program focuses on developing academic abilities and entrepreneurial talents in underrepresented youth.
Researchers at the University of Michigan successfully grew new, mature blood vessels in live animals by implanting scaffolds that delivered critical growth factors. The innovative approach, reported in Nature Biotechnology, has potential medical applications for alternatives to heart bypass surgery and treatments for vascular disease.
Physicians who participate in executions do so out of a sense of citizen obligation, but this involvement mostly advances pro-death penalty political purposes. Medical professionals have long opposed physician participation in executions due to ethical concerns.
A new study reveals that HIV-specific CD4+ T cells persist in infected individuals, but high virus levels suppress their proliferative response. The research provides clues on how the virus manipulates the immune system for its own survival and challenges the notion of long-term nonprogressors.
Researchers have discovered that antibodies attacking DNA in people with lupus can also target molecules controlling glutamate activity, leading to neuron death and possible cognitive symptoms. This finding suggests a potential pathway for neurological complications and may lead to new therapeutic options.
Researchers at Women's and Children's Hospital in Adelaide have developed a way to safely use Human Immunodeficiency Virus Type 1 (HIV-1) to transfer therapeutic genes into human cells. This method has wide applicability for various human genetic diseases and is currently being tested on animal models before moving to human trials.
Research by Susan M. McHale found that children who spend more time on structured activities like hobbies and sports tend to have better academic, emotional, and behavioral development. In contrast, excessive outdoor play or unstructured free time may lead to poorer grades and behavior issues.
Researchers discovered a link between the CFTR gene and increased susceptibility to respiratory infections in cystic fibrosis. They found that altered CFTR can change the internal chemistry of lung cells, making them more attractive to certain bacteria.
A new study finds that even modest increases in family economic resources improve cognitive development, language abilities, and social behavior in young children from poor families. The study discovered a correlation between income-to-need ratios and developmental outcomes in children from birth to age 3.
A team of researchers has identified a novel gene, Lpp1, that is mutated in mice with severe spina bifida. This discovery provides new insights into the genetic basis of the condition and may lead to the development of new therapies to prevent it.
Researchers find HIV attachment to rafts is crucial for replication, and cholesterol-lowering drugs may help disrupt this process. Depleting cholesterol from rafts using compounds significantly reduces HIV's ability to infect new cells.
MetaPhore will develop and test a highly active SOD mimetic to protect heart tissues from damage. The research aims to provide additional mechanistic information on the role of superoxide in reperfusion injury, which may also apply to other ischemic events.
A recent study by the San Francisco VA Medical Center found that two-thirds of elderly people who are eligible for nursing home care receive it at home, often from family members. This type of in-home care is estimated to save the government billions of dollars annually.
A new study found that smoking cessation programs may be less effective for black smokers than for white smokers, with a 23% quit rate compared to 34% after one year. However, the difference narrowed over time, suggesting that interventions without specific adaptations for black participants may still be effective.
Researchers at University of Toronto have discovered a photon switch that can manipulate photons to transmit data in computers. The discovery has the potential to solve problems that traditional computers cannot, including database searches and cracking codes on the Internet.
Research finds that genetics, age, and depression are significant predictors of arthritis, while openness is linked to effective mental functioning among aging African Americans. The study also suggests a strong genetic influence on several measures of well-being, including life satisfaction and depression.
A recent study has identified over 100 yeast genes that provide protection against radiation, revealing new insights into human genetic resistance to environmental stressors. The findings also suggest potential targets for the development of more effective anti-cancer drugs.
A recent deep-sea drilling expedition off Japan has revealed that vast areas of the Pacific Ocean were low in oxygen for periods of up to a million years each. The expedition, which lasted two months, uncovered evidence of global warming events more common than previously thought, with some occurring every thousand years.
The Johns Hopkins emergency department has implemented an acute care unit to reduce overcrowding, resulting in a 40% decrease in ambulance diversion hours. The unit has also seen a significant drop in patient walkouts during the midnight shift, from 20.6% to 8.9%.
Research by Dr Tim Butler reveals that gentrification in London has become a permanent phenomenon, driven by the growing divide within the middle class. Middle-class families are choosing areas based on lifestyle and convenience, rather than social status.
A study by Professors Ash Amin and Ray Hudson reveals that the UK's social economy faces significant challenges in addressing social exclusion, with only 3% of organizations operating without public funds. The research highlights the importance of non-transferable place-specific factors in determining success.
The NIST report provides the first estimates of sublethal exposures to fire smoke's magnitude and impact on people in the United States. It also evaluates lethal and incapacitation values for smoke and identifies further research needed to improve fire hazard and risk assessment.
The National Institute of Standards and Technology (NIST) has published a guide for law enforcement officers to investigate electronic crimes. This guide aims to provide investigators with an overview of the types of electronic evidence that may be available at crime scenes, including devices ranging from large computers to pagers.
A study found that people with normal or high-normal blood pressure can progress to hypertension over a four-year period, positively associated with age and weight increase. The authors recommend annual screening for those with high-normal blood pressure, while normal pressure individuals may require biennial screening.
Researchers at Emory University Health Sciences Center have identified specific genes in the brain associated with Fragile X Syndrome, a genetic disorder causing mental retardation and related problems. The study used DNA microarray technology to discover 251 dysregulated mRNAs in cells from patients with fragile X syndrome.
Dartmouth Medical School biochemists identify a transport receptor that selects soluble proteins for export from cells, resolving a long-standing puzzle. The discovery opens up new avenues for understanding protein secretion and its role in diseases such as hemophilia.
Researchers have found a massive magma reservoir beneath Mt. Vesuvius in Italy, extending over 400 square kilometers and eight kilometers deep. The reservoir is thought to be a zone of neutral buoyancy, where the magma floats in a trapped layer, and may hold clues to future eruptions.
Researchers at Columbia University Irving Medical Center discovered that estrogen therapy improves consistency in older women, a key indicator of cognitive function. The study, which involved postmenopausal women taking hormone replacement therapy, found that estrogen users performed more consistently than those not taking the hormone.
A recent study found that middle school and high school students are more likely to quit smoking when faced with the prospect of fines or license loss. Students in high-enforcement areas were also more aware of penalties and had lower smoking rates, ranging from 21-26.6% compared to low-enforcement areas.
A low-tech handheld refractometer can detect counterfeit malaria drugs and has the potential to be used to test mass batches of drugs imported from overseas. The device is relatively inexpensive and simple to use, making it a viable option for people in developing countries with limited resources.
Scientists have identified a novel family of peptide antibiotics, Piscidins, isolated from the tissues of hybrid striped bass and found in mast cells. These potent compounds show broad-spectrum activity against various bacterial pathogens, including multi-drug-resistant strains.
Researchers have discovered a fire ant protein linked to its senses of smell and taste, which may help regulate social behavior and structure in colonies. The protein's unique properties could be used as a pest control method by disrupting the ants' sensory signals.
Research suggests that targeted policing strategies can be effective in preventing assaults and injuries by increasing deterrence through education and punishment. The study also highlights the importance of specific, visible police work and increasing certainty of punishment.
A new ultrasound technique using fetal nasal bone examination at 11-14 weeks pregnancy improved the accuracy of Down's syndrome screening by increasing sensitivity to 85% and reducing false positives. The study found that fetuses without a nasal bone were 150 times more likely to have trisomy 21 compared to normal fetuses.
A recent study published in the New England Journal of Medicine found that warfarin and aspirin provide no significant difference in preventing another stroke in ischemic stroke patients without atrial fibrillation. The study, which followed 2,206 individuals for two years, showed no statistically significant differences between the tw...
Researchers have created nanoscale atomic generators that selectively destroy cancer cells without harming healthy tissue. The generators use radioactive actinium to produce potent alpha particles that kill cancer cells, offering a new hope for treating various types of cancer.
The discovery shows that confining hydrogen molecules in small spaces creates measurable magnetic interactions, which could lead to a better understanding of solar cell efficiency. The researchers believe this finding has fundamental implications for the study of nanomaterials and their potential applications.
The RIDGE 2000 program will focus on the integration of research across a wide range of disciplines to study complex seafloor ecosystems and geological processes. With an investment of $27 million, the program aims to address questions that bridge gaps between disciplines.