Scientists at UCLA have successfully differentiated human induced pluripotent stem (iPS) cells into electrically active motor neurons, similar in function and efficiency to those derived from human embryonic stem cells. This discovery may open the door for new treatments for neurological disorders using patient-specific cells.
A study found that mental fatigue impairs physical performance in humans, causing participants to exhaust more quickly. The researchers speculate that perception of effort occurs in the brain and may be linked to dopamine levels.
The new short film 'Return to the Moon' showcases NASA's legacy of lunar exploration using data from the Apollo and LRO missions. The film features a six-foot sphere displaying stunning imagery, allowing viewers to witness the moon's surface and understand the rationale for returning to it.
Claire Parkinson, Marc Kuchner, and Neil Gehrels received recognition for their leadership in understanding sea-ice changes through satellite measurements and detecting extra-solar planets. The scientists' research has greatly advanced astronomers' understanding of climate change, exoplanet formation, and gamma-ray bursts.
A specific gene called protein kinase C beta (PKC beta) plays a crucial role in the weight-gain response to a high-fat diet. Mice genetically engineered to lack PKC beta showed minimal health effects and resisted fat-induced obesity, insulin resistance, and liver damage. The study suggests that blocking this gene could be a therapeutic...
A new University of Pennsylvania School of Medicine study found that two-thirds of psychiatric patients referred for care following an emergency room visit are met with voicemail or long waits. Only 10% of calls resulted in an appointment scheduled within two weeks.
A Temple researcher found that older African-American women who experienced high levels of family violence have poorer physical and mental health than their peers. Clinicians need to consider the role of past trauma in patients' current health status and refer them to social support organizations if needed.
A team of researchers has created a solid-state metamaterial device that can modulate tiny waves of radiation in the terahertz range, setting a standard for performance. The device, which is controlled electronically, can process terahertz frequencies 30 times faster and with greater precision than conventional optical devices.
Clinical practice guidelines for cardiovascular disease are often based on lower levels of evidence or expert opinion. A recent study found that the American College of Cardiology and American Heart Association guidelines have increased recommendations with more class II and fewer class III recommendations.
A study found that only 5% of released inmates filled an initial prescription for antiretroviral therapy within 10 days, highlighting significant barriers to accessing care. The majority experienced treatment interruptions lasting at least 30 or 60 days, increasing the risk of drug resistance and community transmission.
The American Institute of Physics has announced the winners of its 2008 Science Writing Awards, honoring four individuals who have improved the public's understanding of physics and related sciences through their creative endeavors. The award recipients include two scientists, a journalist, and a children's book author.
A new method of synthesizing peptides using simple reagents has been discovered by McGill University researchers. The technique allows for the creation of multiple peptides with minimal equipment and expense, revolutionizing biological research.
A new study found that women who wait for breast biopsy results experience biochemical changes, affecting wound healing and the immune system. The researchers hope to encourage faster analysis and communication of biopsy results.
A study of over 2,000 HIV-infected prisoners found that 80% experienced significant interruptions in antiretroviral therapy after release. This can lead to poor clinical outcomes and the creation of drug-resistant HIV reservoirs in the community.
A UK study shows that predicting population spread and conserving habitats can help threatened species survive environmental change. The silver-spotted skipper butterfly's recovery over 18 years highlights the importance of preserving chalk grasslands in southern England.
A study found a 13% incidence of major depression disorder and a 21% incidence of other depressive disorders among HIV/AIDS patients in Kenya. The Patient Health Questionnaire-9 (PHQ-9) screening tool was shown to be reliable and valid for assessing severity and diagnosis in this population.
Recent research reveals children with hypertension have trouble with complicated tasks, working memory, and planning. Anxiety and depression are also common in obese hypertensive children, highlighting the need for early diagnosis and treatment of high blood pressure in this age group.
A randomized study found yoga significantly improved mental health aspects in women with breast cancer, including reduced depression and increased feelings of peace, compared to the control group. The gentle practice provided a wide range of benefits, particularly for those with higher negative emotions and lower emotional well-being.
Active learning is a teaching concept that prepares students for real-world interactions by encouraging participation, group work, and peer review. The approach has been successful in courses like software design, where lecturing plays a minimal role.
A new study found that Transcendental Meditation practice buffers college students against intense stresses, improving Brain Integration Scale scores, electrodermal habituation, and sleepiness. Students who practiced TM showed increased frontal coherence, reduced sympathetic reactivity, and improved emotional balance.
Researchers have developed new techniques to quickly identify bacterial infections and determine the best antibiotic treatment. A nanoparticle-based method can detect bacterial strains in hours, while scientists also uncovered genetic basis of morphological differences in anthrax letter material.
Researchers at Virginia Tech have created a mathematical model to explore the roles of noise in controlling DNA replication and cell division. The study reveals flaws in two accepted notions about information processing in single cells, suggesting that the average number of mRNA molecules must be much larger than previously thought.
A new study by University of Illinois business professor Yunchuan Liu finds that in-store marketing has surged in the last decade, offering retailers a pricing edge over traditional media. The study suggests that in-store advertising will become increasingly important for impulse purchases and brand awareness campaigns.
A Million Women Study found that low to moderate alcohol consumption among women increases cancer risk for breast, liver, rectum, and upper aero-digestive tract cancers. The risk is highest after one drink per day, with an excess of about 15 cancers per 1000 women.
Researchers have identified a key molecular mechanism regulating brain's ability to compensate for sleep deprivation. Adenosine receptors help restore normal working memory and attention skills during rebound sleep.
Researchers found that PSA levels are more predictive of three-year prostate cancer risk in African-American men compared to Caucasian men with a family history. The study's findings suggest that PSA levels may be used to identify high-risk patients for earlier screening.
Researchers found that physically fit elderly adults have larger hippocampi and better spatial memory than their less fit counterparts. The study suggests that exercise can influence brain structure and cognitive function, with implications for aging and independence.
A new study found that goserelin treatment reduced the risk of disease recurrence and deaths by 13.9% and 8.5% respectively in premenopausal women with early breast cancer. The benefits were comparable to those seen with tamoxifen treatment, suggesting goserelin may be a viable alternative for some patients.
Researchers found that 16 of 24 affected workers improved with treatment, including 12 with marked improvement, while six who were not exposed to pig brain mist also showed improvements. The disease is identified as a sensory predominant polyradiculoneuropathy with an autoimmune basis.
Researchers have identified a newly discovered species of fish, H. psychedelica, characterized by its unusual hopping behavior and distinctive zebra-like stripes. The species is part of the genus Histiophryne and has evolved unique adaptations to its environment.
A recent study found that socioeconomic status is linked to an increased risk of developing lung cancer, with Europeans having lower education levels experiencing a higher incidence. The research suggests that while smoking accounts for approximately half of this risk, diet and other factors also play a role in the disparity.
Scientists successfully generated functionally mature motor neurons from induced pluripotent stem cells, paving the way for new treatments of amyotrophic lateral sclerosis and spinal cord injury. This study offers a promising alternative to embryo-derived cells for regenerative medicine.
The Damon Runyon Cancer Research Foundation has awarded prestigious three-year fellowships to 13 outstanding postdoctoral scientists conducting basic and translational cancer research. The fellowships aim to encourage promising young investigators to pursue careers in cancer research, providing independent funding for innovative projects.
A new risk management tool, Protection Poker, can help identify security vulnerabilities during the planning process by having developers share their ideas and perspectives. This process allows for early identification of potential problems, preventing them from being included in software projects.
A study found significant confusion among pre-hospital healthcare providers regarding living wills and DNR orders, which can compromise lifesaving care. Implementing clearly defined code status designations within living wills can clarify this confusion and ensure patient safety.
A study by neurology residents at Barnes-Jewish Hospital showed that they can safely administer clot-busting enzyme tPA to stroke patients, reducing door-to-needle times from 81 minutes to 60 minutes. With proper training and feedback, residents can make complex decisions without increasing the risk of brain bleeding.
A study found that teenagers who preferred popular songs with degrading sexual references were more likely to engage in intercourse or pre-coital activities. High exposure to such lyrics was independently associated with higher levels of sexual behavior among young adolescents.
Researchers at NC State University developed a software tool that identifies on-screen code to be translated, reducing error rate and increasing productivity. The tool was applied to a popular online video game, finding 17 errors that were later corrected.
Researchers at UCR identified all the genes expressed in plant stem cells, providing a global view of which genes are expressed and where within the shoot apical meristem. This discovery can help scientists develop better varieties of crops and understand why stem cells give rise to specialized cells.
A study of 1060 vets in north Germany found that psychosocial stress increased with working hours, leading to demoralization and substance abuse. The research suggests a complex relationship between stress, tobacco consumption, problem drinking, and drug use.
The European Society of Cardiology has reaffirmed its advice on cardiovascular risks associated with long-haul flights. Studies suggest that flight duration exceeding four hours increases the risk of venous thromboembolism (VTE) due to immobility, dehydration, and reduced oxygen in the cabin.
A new calculation eliminates obstacles in measuring kidney function in children, relying on various blood tests that can be performed in a clinical setting. The study's findings suggest an accurate estimate is crucial to properly treat children with acute and chronic kidney problems.
Experts gather to discuss how economic growth affects well-being and whether poverty or wealth guarantees happiness. Research highlights the negative effects of unemployment, while stability in work improves health and well-being.
A new study published in JAMA found that low-income women with diabetes have a more than 50% increased risk of experiencing postpartum depression. The research suggests that healthcare facilities and clinicians should pay attention to managing mental health concerns in women with diabetes during pregnancy and the postpartum period.
Researchers at LSTM and UoL aim to develop a new antimalarial drug that targets a novel enzyme in Plasmodium falciparum, potentially eliminating malaria symptoms. The project will use computational techniques and molecular modeling to design effective inhibitors.
Low-income pregnant women and new mothers with diabetes have nearly twice the risk of experiencing depression during and after pregnancy than women without diabetes. The study, published in JAMA, found that women with any form of diabetes were significantly more likely to experience some indication of depression during pregnancy or pos...
Yale researchers discover a link between anger and sudden cardiac arrests, which claim 400,000 lives annually. The study found that patients with T-wave alternans, a measure of electrical instability, were more likely to experience arrhythmias after a mental stress test.
Researchers found that gene expression profiles differed between tumor samples from patients who had taken vitamin E, selenium, or both supplements compared to those on placebo. The study provides insight into the effects of preoperative supplement use on prostate cancer gene expression, a potential area for future investigation.
A new study finds that MSU's mentoring program improved teacher effectiveness in the Lansing district, leading to a significant reduction in teacher turnover. The program involves freeing up veteran teachers to advise beginning peers throughout the school year, providing training and support to help them succeed.
A randomised trial found that kyphoplasty treatment significantly improved quality of life, function, mobility, and pain in patients with acute vertebral fractures compared to non-surgical management. The procedure was also safe and effective, with no significant differences in adverse events between the two groups.
Researchers used game theory to explain juvenile ravens' unusual foraging behavior, finding that it occurs when searching individually is less efficient. The study suggests that abundant food and social advancement drive the adoption of 'gang' foraging, potentially improving their social status.
Researchers at Duke University discovered that ancient groundwater in Jordan's Disi aquifer contains up to 20 times the safe level of radiation, threatening long-term human consumption. To make it safe, experts recommend diluting or treating the water with technologies like ion exchange and desalination.
Researchers developed compounds that inhibit an enzyme producing nitric oxide, a neurotransmitter that can damage brain tissue. The treatment was effective in preventing cerebral palsy in animal models, suggesting a potential preventive strategy for humans in the future.
Researchers at University at Buffalo link capsaicin's analgesic effects to PIP2 lipid in cell membranes. The receptor's adaptation property allows it to continuously respond to varying stimuli, providing a novel strategy for developing safe pain-relieving medications.
Researchers are studying the life history of spiny dogfish sharks in the Gulf of Maine, using new techniques to determine their age and growth rate. Preliminary results show that the age at maturity has not changed dramatically, but the growth rate may be slowing down.
Researchers discovered that post-traumatic stress disorder impacts stroke patients' recovery and ability to resume normal life, even with minor brain damage. Early testing using simple questionnaires could lead to significant improvements in subarachnoid hemorrhage patient outcomes.
Researchers found increased PAI-1 expression in the heart of mice with diabetes leads to profibrotic effects, including increased fibrosis and functional derangements. This link may contribute to the high incidence of heart failure after myocardial infarction in people with diabetes.
Researchers at CSIRO Australia have discovered a key to overcoming three major cereal diseases, providing long-lasting protection against multiple pathogens. The Lr34 gene sequence offers broad-spectrum control of leaf rust, stripe rust, and powdery mildew, with tests showing constant protection for over 80 years.
A new study suggests blocking neutrophil migration using rhAPC could eliminate bleeding risk from sepsis treatment. The results recommend existing drugs as potential new treatments against sepsis, increasing the pace of new treatments in the clinic.
A study published in Psychological Science reveals that hand movements can aid in creating new math concepts and aid learning. Fourth-grade students who repeated a specific gesture during a lesson solved more problems correctly than those who only spoke the words or partially correct gestures.
Researchers at VIB have identified a key gene that suppresses cancer across species, including humans. The Atonal gene regulates the final step of cell specialization, which is lost in cancer cells, offering new hope for therapy.
A recent study found that post-partum haemorrhage is a significant threat to new mothers in high-income countries, resulting in severe outcomes including infertility and death. The authors recommend increased access to active management of the third stage of labour to reduce PPH rates.
Researchers have discovered unique ecosystems in Great Lake Huron's sinkholes, featuring brilliant purple mats of cyanobacteria and pallid, floating pony-tails of microbial life in dense, salty water. The unusual environments are similar to those found at the bottoms of permanently ice-covered lakes in Antarctica.
Evelyn Hirt, IEEE-USA president-elect, and William Wulf, former NAE President, will receive the organization's highest honors for their contributions to engineering professionalism and public service. They join other award recipients recognized for their achievements in advancing U.S. competitiveness in science and technology.
Researchers at Goethe University Frankfurt have discovered an enzyme that enables yeast cells to ferment xylose into ethanol, a waste sugar in the cellulosic ethanol production process. This single-step conversion technology has the potential to increase biofuel production efficiency and reduce competition with food and feed production.
A national-level analysis confirms that Physician Health Programs, which couple referral to treatment with rapid responses to noncompliance, are successful in helping doctors stay drug-free. The study found that over three-quarters of enrolled doctors stayed sober for five years and were able to return to medical practice.
Researchers have developed a computer model that replicates the growth of snow crystals in rich three-dimensional detail. The model, which can generate all types of snowflakes, is significant because it helps scientists better understand and predict how snowflakes form in clouds.