Physicists at UC San Diego observed spontaneous coherence in excitons, a bound pair of electrons and holes that enable semiconductors to function as novel electronic devices. This discovery could lead to the development of new computing devices and insights into quantum properties of matter.
Researchers used radio tracking and computer simulation models to understand why wolves are not dispersing as fast as expected in Yellowstone. The team found that the reduced probability of finding mates at low densities slows the predicted rate of recolonization.
Diarrheal diseases kill over 2 million children annually, and the Institute for OneWorld Health aims to combat this with novel anti-secretory drugs. The $46 million grant will support the development of new treatments to complement traditional approaches.
A new study by the University of Illinois found that faith-based youth groups provide the highest rates of personal and interpersonal growth experiences for teens, compared to sports, performance and fine arts groups, academic clubs, and community-oriented activities. The study surveyed over 2,000 eleventh graders and found that teens ...
A Stanford University School of Medicine study found that napping improved mood, alertness and performance in doctors and nurses who worked night shifts. The study's results showed that a short nap break reduced fatigue, sleepiness and performance lapses.
A recent study found that mice lacking the GBA2 protein exhibit decreased fertility due to abnormal sperm morphology and reduced motility. The discovery may shed light on the mechanism behind certain treatments for Gaucher's disease, which can also impact fertility.
A University of Georgia study found that regular exercise consistently reduces fatigue by increasing energy levels. The analysis of 70 randomized trials showed a significant improvement in fatigue among participants who exercised regularly compared to those who did not.
Regular follow-up is essential during antidepressant treatment due to individual variability in response, according to Dr. Greg Simon. The author suggests maintaining a connection between patients and providers to address potential concerns and provide support.
Researchers at Penn School of Medicine found that low-intensity laser treatment is ineffective in preventing complications of AMD or vision loss. Daily supplements of vitamins and minerals remain the only established way to decrease the risk of vision loss for people with large drusen.
Thirty-nine outstanding scientists from Latin America and Canada have been awarded a total of nearly $500,000 by HHMI for five-year international research scholar awards. This marks the fourth round of awards to Canadian and Latin American researchers, supporting their research capacity and linking them with global investigators.
The AKARI satellite's far-infrared survey has provided unprecedented views of the Large Magellanic Cloud, a dwarf galaxy orbiting our own. The images reveal copious star formation activity across the galaxy, with many stars currently being formed, indicating a 'star burst'.
The Mount Sinai Medical Center will receive a $400,000 grant to develop and disseminate a curriculum educating health professionals about rational prescribing. The grant aims to promote critical thinking and healthy skepticism among healthcare providers, enabling them to make evidence-based prescribing decisions.
Researchers discovered that liver cells can activate T cells independently of the lymph system, potentially contributing to impaired immune responses in chronic hepatitis C. The study found that T cells interact with liver cells through fenestrations in sinusoidal endothelial cells.
Researchers found that universal-free school breakfast increases the likelihood of nutritionally sound breakfast consumption in children. Additionally, flavanol-enriched snack bars with plant sterols may help manage cholesterol levels.
Research by Stanford University found that decreased TGF-beta signaling in mice leads to increased neurodegeneration and beta-amyloid peptide accumulation, similar to Alzheimer's disease. Increasing TGF-beta signaling may potentially reduce neurodegeneration and be beneficial for individuals with AD.
Researchers found that the caveolin-1 gene can protect against pre-cancerous development in breast cells and may be a potential target for preventing breast cancer. The study also suggests a crucial role of the tumor microenvironment in the cancerous process.
Researchers at Arizona State University are studying two French clays that have been shown to heal Buruli ulcer, a flesh-eating bacterial disease found primarily in central and western Africa. The study aims to understand the mechanisms behind the antibacterial properties of the clays and explore their potential as a new treatment option.
Researchers used resveratrol to increase the lifespan of obese mice, reversing nearly all changes in gene expression patterns linked to diabetes and heart disease. The study also found improved motor skills and quality of life in mice treated with resveratrol, suggesting potential therapeutic applications for age-related diseases.
A six-year study, STAR*D, found that 67% of patients achieved full remission after one to four treatment steps. Careful monitoring and collaboration between patients and clinicians are crucial for improving outcomes.
A comprehensive worldwide map of mammals, birds, and amphibians shows that endangered species from different groups don't inhabit the same areas, contradicting conservationists' assumptions. This discovery has significant implications for conservation planning and decision-making.
A study published in Progress in Cardiovascular Diseases found a strong association between salt intake and obesity. Reducing salt intake was associated with a significant decrease in stroke and coronary heart disease mortality, as well as an increase in life expectancy.
A single dose of sildenafil prevented rebound pulmonary hypertension and reduced mechanical ventilation time in ICU infants undergoing nitric oxide withdrawal. The study found significant benefits for the sildenafil group, with a total ICU stay of 47.8 hours compared to 189 hours for placebo recipients.
Research from the University of Minnesota found that children who received radiation for cancer are at higher risk for developing secondary brain tumors. Prolonged follow-up is crucial for early detection, and long-term screening recommendations are needed for all childhood cancer survivors.
A new program in Ohio State University's phys ed class encourages students to plan their own exercise routines, leading to a significant increase in physical activity outside of school. Nearly half of students were inactive before the program, but after participation, over 90% became more active.
Researchers at the University of Minnesota have successfully differentiated umbilical cord blood stem cells into type II alveolar cells, which can secrete surfactant and repair airways. This breakthrough may lead to new treatments for lung diseases like cystic fibrosis.
Researchers developed a treatment using mechanical Left Ventricular Assist Devices (LVADs) and certain drug therapies to shrink enlarged hearts and enable normal function. The therapy improved quality of life in 88% of patients who received the full combination, with nearly all recovering from heart disease five years later.
A US study finds no link between rock climbing and increased osteoarthritis risk, despite increased bone density in climbers' fingers and hands. Climbing style intensity is a significant predictor of bone strength, with bouldering and sport climbing styles correlating with stronger bones.
Researchers have determined the APOBEC-3G protein structure, providing key insights into its role in the immune system and potential as a drug target. The study suggests that editing errors introduced by A3G can help defend against HIV, and future drugs may be designed to replicate this natural protection.
A novel estrogen receptor, GPR30, is linked to breast tumor progression and increased tumor size. The receptor's expression was positively associated with tumor size and metastatic disease, suggesting it could influence treatment decisions for hormone therapy.
The study found that 52.1% of health plans used pay-for-performance programs in 2005, with physician-oriented programs more common than hospital programs. The surveys highlighted important details about these programs, including the types of performance indicators used and the challenges faced by HMOs in implementing them.
A study of 188 students found that poor readers were three times more likely to consider or attempt suicide and six times more likely to drop out of school than typical readers. Researchers identified reading difficulties as an independent risk factor for suicidal thoughts and behavior, regardless of psychiatric conditions.
A new study uses MRI techniques to discriminate between patients who will benefit from clot-dissolving drugs and those who may be harmed. The technique helps doctors make informed decisions about treatment timing, potentially improving patient outcomes.
A new dementia screening tool developed by Saint Louis University has been shown to detect mild cognitive problems in the elderly that were missed by the Mini Mental Status Examination. The tool, known as SLUMS, is more sensitive and can help clinicians identify patients with mild neurocognitive disorder on initial visit.
A key gene, Boc, has been identified as crucial for brain neural circuit formation and axon guidance in the nervous system. This discovery could lead to novel strategies for treating neurodegenerative diseases such as Alzheimer's and Parkinson's, and spinal cord injuries.
A British drug discovery company is teaming up with a Brazilian firm to search for new medicines in the Amazonian and Atlantic rain forests. The partnership aims to combat diseases such as tuberculosis, avian flu, and tropical illnesses like hepatitis C and Chagas disease.
A study at The Wistar Institute found that blocking certain enzymes may inhibit chronic inflammation in blood vessel walls, but also promotes leukemia in mice. The researchers identified a strain of mice lacking the gene for a specific lipoxygenase enzyme, which closely mimics human CML and offers a new model for studying the disease.
A recent supplement to Critical Care Medicine outlines progress made in end-of-life care in intensive care units (ICU), with a focus on palliative care, quality indicators, and family communication. The study suggests that improving end-of-life care in ICUs can lead to better patient outcomes and reduced suffering.
Advances in PET technology enable early disease detection and personalized medicine, potentially leading to annual screenings for common diseases. Doctors will use PET's molecular imaging ability to visualize precise molecular changes, informing treatment and prevention strategies.
Researchers have developed an AI system that enables computers to interpret images and provide accurate annotations, improving the accessibility of online image collections. The ALIPR system can automatically tag images with relevant keywords, facilitating search and retrieval, and has been shown to be correct in over 98% of cases.
A new study published in Pediatrics shows that an educational-behavioral program called Creating Opportunities for Parent Empowerment (COPE) can improve the mental health of parents and decrease the length of stay in the NICU by four to eight days for premature infants. The potential healthcare savings could total $2.4 billion if imple...
The H5N1 avian influenza has been detected in 55 countries, but critical information about wild birds is often recorded inaccurately or not at all. This lack of data can lead to unwarranted assumptions and conclusions that affect public perceptions and resource allocation.
Researchers discovered that GBA2 is necessary for normal sperm function and male fertility in mice. A lack of GBA2 results in abnormal sperm morphology and decreased fertility, similar to a treatment for Gaucher's disease.
Psychological and behavioral therapies are considered an effective treatment for insomnia, producing reliable changes in several sleep parameters. The studies found that treatments such as cognitive behavioral therapy and relaxation conditions were effective for primary insomnia, with benefits well sustained over time.
A US study found an inverse relationship between antidepressant prescriptions and child suicide rates, with counties having high prescription rates showing lower suicide rates. The study predicts that no SSRI prescriptions would lead to 253 more suicides per year among children and adolescents.
A new survey found that Pakistani women are 30% more likely to be blind than men, with the highest incidence of blindness in regions like Punjab and Balochistan. The study also reveals lower utilization of eye care services as a contributing factor to this disparity.
A study by the NIH/National Institute on Aging demonstrates that resveratrol, an activator of sirtuins, can improve health and survival in aged overweight male mice. Resveratrol supplementation improved insulin sensitivity, reduced liver size, and enhanced motor function in the mice compared to those without resveratrol.
A study published in the New England Journal of Medicine found that treating gum disease during pregnancy does not improve pregnancy outcomes, but is safe for pregnant women. Further research is needed to develop more specific treatment guidelines for pregnant women with periodontitis.
A new study finds that high-tech ventilation systems are no match for secondhand smoke and may even perform worse than standard dilution ventilation. Despite proper design and operation, the systems failed to reduce exposure to carcinogenic chemicals and toxic particles in non-smoking sections.
The Natural Capital Project aims to calculate ecosystem services' value to people, highlighting the importance of conserving natural systems. By incorporating these values into policies, conservation can be a profitable use of land, benefiting both biodiversity and human life.
Breakthroughs in protein interaction studies, antibiotic development, and signaling G Proteins are highlighted in ACS Chemical Biology. Researchers have also found a small molecule that controls thyroid hormone receptor activity.
Researchers analyzed thousands of proteins from brain tissue samples to find novel changes related to cocaine addiction. The study reveals profound effects on brain function and identifies potential new targets for medication development.
Researchers found that SIDS infants had more neurons manufacturing and using serotonin than control infants, but fewer serotonin receptors, suggesting an abnormal level of serotonin. This study provides the strongest evidence to date for a specific brain area controlling breathing and heart rate abnormalities in SIDS.
Researchers at CReSA have made significant advances in tests using DNA vaccines on animal models, enabling a delay in symptom appearance and paving the way for human treatment. The vaccine induces a complete immune response, including humoral and cellular responses, overcoming the tolerance barrier faced by prions.
The investigational amphetamine compound SPD465 demonstrated improved Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms in adults for up to 16 hours post-dose. The study results showed that SPD465 provided significant improvement in ADHD symptom control based on PERMP and ADHD-RS scores.
Researchers used a systematic review process to identify 10 key indicators of activity-friendly communities, including land use policies and clean environments. These findings represent an important first step in assessing and improving community support for routine physical activity.
Childhood cancer survivors are at higher risk for developing second cancers, including CNS tumors, which can have devastating consequences. Radiation exposure is associated with a higher risk of malignant brain tumors like glioma and benign tumors like meningiomas, particularly in children under age 5.
As part of the 'Vote and Vax' initiative, flu vaccine clinics will be stationed next to polling sites in 26 communities nationwide, targeting areas with low flu shot delivery rates. The program aims to increase flu vaccination among Americans aged 50+, who are particularly vulnerable to the disease.
The US has failed to promote effective family planning policies due to the Bush administration's inaction. Europe may need to take a lead in revitalizing global commitment to family planning, as population growth poses a greater threat to development than HIV/AIDS in many poor countries.
A two-week rehabilitation program using constraint-induced movement therapy (CIMT) significantly improved function of the affected arm in stroke survivors. CIMT involves training the weakened hand and arm through repetitive exercises while restraining the unaffected hand and arm, forcing patients to use their affected limbs.
The Lancet warns that conservative forces are undermining progress in sexual and reproductive health, resulting in 19 million women facing unsafe abortions, 80 million couples having unmet contraceptive needs, and 340 million new cases of gonorrhoea, syphilis, and chlamydia each year. Effective measures to prevent unintended pregnancy,...