Cerebral microbleeds, small deposits of hemosiderin in the brain, are more common among older adults taking anti-clotting medications like aspirin. The study found an association between these medications and brain microbleeds, particularly among those taking higher doses.
The College Board's SAT test sends a confusing message to students, teachers, and schools, as it features esoteric items rarely encountered in the classroom. In response, Richard C. Atkinson proposes dropping the SAT in favor of curriculum-based achievement tests in UC admissions.
Researchers discovered a receptor in the colon that has cancer-killing potential and is silenced by cancer. Activating this receptor with butyrate or a related compound may provide a new treatment for colon cancer and inflammatory bowel disease.
Methodspace, a Facebook-like social networking site, will offer live demos at the American Educational Research Association annual meeting. The platform supports researchers in methodology discussions and resource sharing.
UC Davis researchers found that low levels of PCBs alter brain cell development and excitability, explaining the association between PCB exposure and behavioral deficits in children. The studies show how PCBs affect dendritic plasticity, a key characteristic of neuronal development.
Researchers found racial disparities in cancer survival rates disappear when analyzing smaller geographic areas like neighborhoods. The study suggests that modifiable factors such as socioeconomic differences and access to medical care contribute to these disparities.
A randomized placebo-controlled study found no significant differences in electroretinography, visual function tests, or eye anatomy between men taking tadalafil or sildenafil and those taking a placebo. The study suggests that PDE5 inhibitors do not cause cumulative damage to the retina over six months.
Researchers found Rad60 DNA repair factor mimics SUMO to maintain genome stability during replication, preventing genetic defects and promoting cell viability. The study provides new insights into the mechanisms of genome protection and potential implications for cancer and aging.
A new program, Cultivating Awareness and Resilience in Education (CARE), aims to reduce teacher stress and improve student behavior. By teaching mindfulness techniques, teachers can create a positive learning environment, increasing student engagement and reducing disruptive behavior.
Researchers at the University of Toronto have created a new green catalyst using iron that could replace expensive and toxic platinum metals in industrial chemical processes. This breakthrough has the potential to significantly reduce costs associated with drug production by avoiding costly purification techniques.
A review of 146 prospective cohort studies and 43 randomized controlled trials found strong evidence for a causal relationship between protective dietary factors such as vegetable, nut, and monounsaturated fatty acid intake and lower heart disease risk. The Mediterranean diet was significantly associated with coronary heart disease.
Researchers found that adding chloroquine to imatinib improves its therapeutic effect by inhibiting autophagy, which helps leukemia cells evade death. The combination eliminates most CML stem cells and increases imatinib-induced cell death.
A NASA experiment has successfully 'hindcasted' the path of Cyclone Nargis, which killed over 135,000 people in 2008. The new data integration and mathematical modeling approach uses satellite imagery and atmospheric profiles to provide multi-day advance warnings for cyclones in the Indian Ocean.
A team of scientists has discovered a compound that can block the growth of brain tumors by reversing the effects of an altered enzyme. The mutation in the IDH1 gene impairs the body's ability to control a protein that promotes tumor growth, but adding a modified form of alpha-KG can restore this balance.
A team of researchers has identified a class of drugs that may enhance the therapeutic effects of imatinib mesylate, a commonly used treatment for chronic myeloid leukemia. By inhibiting autophagy, these drugs can increase the effectiveness of imatinib mesylate and improve outcomes for patients with CML.
A new study published in The FASEB Journal reveals that poor nutrition during pregnancy can lead to permanent genetic changes in the offspring, causing health problems such as diabetes, growth retardation, and cardiovascular disease. The researchers found that rat fetuses receiving inadequate nutrition became genetically primed to be b...
The study found that people with ecologically-friendly attitudes are more likely to actively commute, while a lack of bike racks, showers, and supportive office culture hinder active commuting. The researchers emphasized the importance of designing communities that facilitate physical activity and eco-friendliness.
Researchers develop method to target genes in Toxoplasma gondii, a parasite responsible for malaria and diarrhea. The breakthrough enables the creation of safe and effective genetically modified vaccines and drug therapies.
Researchers found that HIV's invisibility comes at a cost: reduced replication, and only in certain individuals with specific HLA proteins
Researchers at Kansas State University have created a graphene-based DNA sensor that can detect cancer cells in blood, leveraging the unique properties of this single-atom thick carbon material. This technology has the potential to revolutionize cancer diagnosis and treatment, offering a new frontier in materials science and biology.
The university is exploring the impact of molecular pathways on inner ear dysfunction in Usher Syndrome, a clinically and genetically heterogeneous disorder causing congenital deafness and retinitis pigmentosa. The grant aims to prevent hair cell death and promote otoprotection therapy.
A survey of 2,400 practicing clinicians found that only 65% were aware of at least one major clinical trial on complementary and alternative medicine (CAM) therapies. Clinicians who were aware of CAM trials reported greater ability to interpret evidence and acceptance of its value.
Researchers identified abnormalities in nerve pathways connecting key brain areas, suggesting a possible cause of writer's cramp. The study used diffusion-tensor magnetic resonance imaging (DTI) to assess white matter changes, finding differences between patients and healthy controls.
A study found that black patients with non-small cell lung cancer are 37% less likely to receive recommended surgery and 42% less likely to receive recommended chemotherapy than white patients. The disparity remains despite efforts to address inequalities in medical treatment.
Researchers used GPS tracking collars and analyzed carbon isotopes in elephant tail hair to monitor the elephants' movements and diet. The study found that when rains begin, satellite measurements show increasing greenness as grasses grow, indicating peak levels of high-protein grass in the elephants' diet.
Scientists studying a new cancer treatment discovered that protein levels, not genetics, determine the effectiveness of the medication. This finding offers an alternative explanation to the cancer stem-cell hypothesis and holds promise for designing more effective anti-cancer treatments.
A study found a microRNA gene, miR-96, associated with progressive hearing loss in humans and mice. The mutation disrupts the development of sensory hair cells, leading to dramatic loss of hearing.
Researchers at Stanford University School of Medicine developed a machine that can analyze tiny blood samples for cancer-associated proteins, detecting subtle changes in protein modifications. The technique may provide a faster and less invasive way to track solid tumors and monitor treatment response.
Researchers have proposed a novel optical clock concept that enables more stable clocks, sub-natural linewidth laser spectroscopy, and long coherence time lasers. The lasing behavior of the active optical clock is described by the modified Schawlow-Townes linewidth formula, which narrows the linewidth due to collective emission from ga...
Scientists have developed a new method to create safe and effective embryonic-like stem cells using tiny molecules called microRNAs. This breakthrough technology eliminates the risks associated with traditional DNA-based methods, making it a promising step towards regenerative medicine.
Researchers at Temple University have found a simple color-changing oral strip can help detect gum disease more quickly and easily than traditional methods. The strips change color based on levels of microbial sulfur compounds in saliva, providing a comparable screening method.
Recent observations from the USArray transportable array and EarthScope instruments have shed new light on seismic wave propagation and the evolution of the Yellowstone hotspot. The analysis suggests a common mantle source for the region's unique topographic features, providing valuable insights into geological processes.
Researchers at MIT have developed a novel method for creating exceptionally fine lines on microchips, overcoming fundamental limits in light-based technologies. The technique uses interference patterns to produce transparent lines interspersed with opaque material.
Patients given an omega-3 enriched supplement maintained all aspects of their body composition after surgery, while those without it suffered clinically severe weight loss. The study suggests that omega-3 fatty acids may reduce the risk of post-surgical complications by suppressing inflammation.
New research suggests climate change will impact ozone recovery rates due to changes in atmospheric circulation. Greenhouse gases alter the Brewer-Dobson circulation pattern, influencing ozone distribution and leading to uneven ozone layer recovery.
Researchers at UT Southwestern Medical Center found that the protein Thymosin beta-4 initiates migration of heart cells and blood vessel growth after a heart attack, encouraging new growth and repair of damaged heart cells. The molecule affects developmental gene expression as early as 24 hours after systemic injection.
A study by Brown University researchers found that nursing homes serving primarily Hispanic residents provided poorer quality care, including higher rates of bed sores. The study looked at data from California, New Mexico, Texas, Arizona, and Colorado and found disparities in care related to racial segregation.
Dr. Neal F. Lane, a prominent physicist and former U.S. presidential science advisor, has been awarded the AIP's Karl T. Compton Medal for his outstanding contributions to physics through exceptional statesmanship. He is recognized for his advocacy of public understanding of science and technology, as well as his championship of scient...
A team of astronomers has found a sample of massive galaxies with properties suggesting they may have formed recently, running counter to widely-held beliefs. The discovery challenges our understanding of galaxy formation and evolution, offering new opportunities for research into the origin and early history of galaxies.
Researchers studied ICU patients with acute lung injury (ALI) and found that those with greater organ failure and higher benzodiazepine doses were more likely to experience depression after discharge. The study suggests that certain aspects of critical illness and ICU care may contribute to depression.
A study by Kansas State University researchers found that people drive at speeds based on their perceptions and existing conditions, rather than adhering to posted speed limits on gravel roads. The study also revealed no safety benefits from posting speed limit signs or reducing the speed limit.
The ALCF's powerful installation of NVIDIA Quadro Plex S4 external GPUs enables scientists to visualize and analyze vast amounts of data from high-performance calculations. This allows for dramatic reductions in time needed to create complex visualizations, boosting their quality.
A three-year NSF grant will help improve protein production in crops through research on Arabidopsis gene conversion. The study aims to understand how plants control protein synthesis and identify key steps and factors involved.
A recent study by Mount Sinai faculty suggests that a gene associated with type-2 diabetes decreases in Alzheimer's disease dementia cases. The research found that promoting PGC-1 content in brain cells attenuates hyperglycemic-mediated β-amyloid production, linking type-2 diabetic metabolic defects to increasing dementia.
Researchers developed a test to quickly assess the effectiveness of Alzheimer's drugs in reducing amyloid beta production, which builds brain plaques. The test, SILK, was used to study LY450139, an Eli Lilly drug candidate, and showed a dose-dependent drop in A-beta production.
A team of scientists has sequenced the genomes of two tiny marine algae, revealing unexpected genes with functions similar to those found in land plants and bacteria. The findings highlight the complexity of these organisms and their potential role in shaping marine food webs and carbon cycling.
Researchers found that teaching kids the underlying structure of math problems enhances their understanding and ability to solve them. This approach, known as conceptual instruction, enables students to explain the problem and its solutions on their own.
Researchers found that comparing different solution methods enhances students' understanding of math concepts and improves their flexibility in solving equations. This approach is more effective than comparing problems solved using the same method.
Scientists from the University of Miami Rosenstiel School and University of Oxford have analyzed data to identify details of the major plate boundary event that destroyed 90% of Pisco, Peru. The study reveals maximum intensity and damage occur few tens of kilometers south of the epicenter.
A CSHL-led team has identified a critical role for the protein EYA in setting the machinery for DNA repair, allowing cells to either fix broken DNA or die. The discovery sheds light on how cells make decisions when faced with catastrophic DNA damage.
Researchers have determined the molecular structure of a plant photolyase protein similar to two cryptochrome proteins controlling the human clock. The study reveals key differences between human and plant cryptochromes, shedding light on the complexities of the human sleep/wake cycle.
Researchers found that avotermin improved scar appearance by an average of five points at six months and eight points by month 12 in two studies. The treatment also showed a significant improvement in the structure of healed skin, with 60% of scars demonstrating less abnormal collagen fibre orientation.
Researchers discover adenylylation, a unique post-translational modification, regulates cell signaling by inactivating key proteins. This discovery opens new avenues for exploring bacterial pathogenesis and potential therapeutic targets.
A study in Evolution Canyon, Israel, shows that scorpion species exhibit different distributions on the south-facing and north-facing slopes, despite identical regional geology. The results suggest that environmental pressures, such as sunlight and drought, can lead to local changes in biodiversity.
Researchers are re-evaluating earthquake potential in the Central Coast region, a high-risk area with significant population growth. Fresh data from multiple datasets will focus on faults including the Hosgri Fault Zone and highlight newly identified features such as a linear trend of seismicity and magnetic anomalies.
A UC San Diego bioengineer has made significant discoveries on the universal need for cells, tissues, organs, and organisms to use common biological modules. The researcher found that despite differences in structure and function, various biological systems respond to forces using similar strategies.
A randomised controlled trial found that a single annual infusion of zoledronic acid improved bone mineral density by 4.1% compared to daily risedronate's 2.7%. This increase in BMD is associated with reduced fracture risk and acceptable safety and tolerability profiles.
A giant Cascadian earthquake could cause severe damage and possible collapse in Seattle's high-rise buildings, particularly those constructed before 1994 building code changes. The Seattle basin amplifies long-period motions, making tall steel buildings susceptible to low-frequency shaking.
The 1989 Loma Prieta earthquake had a profound societal impact, transforming earthquake sciences and engineering. The event led to improved understanding of earthquake processes and triggered major changes in building codes and disaster response.
This year's Proctor Medal recipient, Joe G. Hollyfield, is recognized for his research on drusen and age-related macular degeneration. Samuel Wu receives the Friedenwald Award for pioneering retinal signaling process systems.