Researchers have used tree rings from cedar trees in Bolivia to record a 100-year history of rainfall across the Amazon basin. The study found that lowland tropical cedar trees provide a natural archive of data closely related to historic rainfall, allowing for a detailed understanding of past climate variability.
A new study published in the Journal of American College of Surgeons found that needle biopsies can lead to improved treatment outcomes for women diagnosed with breast cancer. Patients who underwent needle biopsies were more likely to have adequate tumor excision and lymph node assessment compared to those who received open biopsies.
Scientific studies reveal pros and cons of free market approach to water trading in Australia's Murray Darling Basin. Researchers also uncover connections between typhoon tracks, rainfall patterns, and flood timing, with potential applications for improved real-time flood warning systems.
A new study predicts that sea levels will continue to rise for thousands of years due to irreversible warming caused by greenhouse gas emissions. The research suggests that the Earth's ice sheets and oceans will contribute significantly to this rise, with a possible increase of up to 6.8 meters in the next thousand years.
A study reveals that adolescents are more likely to engage in risky behaviors due to their comfort with uncertainty, rather than an innate taste for risk. By providing precise information about the risks involved, adolescents become even more risk-averse, whereas ambiguity makes them more willing to take risks.
A high-calorie, high-sugar, high-sodium diet has been shown to induce symptoms of metabolic syndrome in rats after just two months, increasing the risk of stroke and related health issues. The study highlights the importance of a balanced diet and regular exercise in preventing these conditions.
Researchers found a new class of antibody in camelids that can cross the blood-brain barrier, diffusing into brain tissue to reach specific targets. This breakthrough may lead to enhanced imaging and improved drug delivery for people with brain diseases like Alzheimer's.
Scientists at the University of Warwick and Tohoku University have directly imaged Landau Levels, showing concentric rings that increase according to energy level. The discovery uses scanning tunnelling spectroscopy to overcome material disorder, shedding light on the quantum Hall effect.
Johns Hopkins researchers have developed a gene-based therapy that specifically targets the immune response of myasthenia gravis, erasing the need for systemic immunosuppression. The technique uses genetically engineered dendritic cells to destroy faulty T-cells, reducing autoantibodies and halting the autoimmune attack.
Iowa State researchers use clam shell data to reconstruct ocean circulation patterns, recording growing conditions, temperatures, and circulation patterns. The study sheds light on the impact of human activities on climate variability over the past 1,000 years.
A recent study by Potsdam Institute for Climate Impact Research found that restricting nuclear power has minimal effect on the cost of climate policies. The researchers discovered that early retirement of nuclear power plants would lead to cumulative global GDP losses amounting to around 10-20 percent of climate policy costs.
Researchers at Queen Mary University of London discovered genes in sea urchins and sea cucumbers that can change collagen elasticity, potentially leading to new ways to keep skin looking young and healthy. The study found peptides that cause rapid stiffening or softening of collagen, which could be used to combat aging-related wrinkles.
Research indicates diets high in saturated fat and refined sugar may impair brain function in obese individuals, leading to increased overconsumption of high-calorie foods. Obesity-related changes may also lead to permanent cognitive decline, making it a lifelong battle to maintain weight loss.
A large study found that the quadrivalent HPV vaccine was associated with fainting and skin infections in the days following vaccination. The study of over 189,000 females suggests that these side effects are relatively common but not serious, supporting the safety of routine vaccination.
A set of evidence-based clinical practice guidelines has been established to guide the diagnosis and treatment of low-back pain in the US. The guidelines recommend careful observation, over-the-counter pain medication, and targeted physical activity for most patients, while reserving imaging and surgery for specific cases with red flags.
A yearlong marine deployment of the ARM Mobile Facility AMF2 on the Horizon Spirit aims to collect extensive data on clouds and their transitions, improving climate modeling. The project will provide valuable insights into Earth's energy and water balance, enhancing our understanding of climate change.
A survey in southern Ontario found that only 2% of respondents could correctly identify aphasia as a communication disorder affecting speaking, reading, writing and understanding. This highlights the need for increased awareness and access to speech-language therapy and supportive programs for people living with chronic aphasia.
A new study finds that zinc transporters are dysregulated in old animals, leading to increased inflammation and oxidative stress. Experts recommend adequate dietary intake of zinc for the elderly, particularly through supplements or seafood/meat-rich foods.
Researchers found that baboon females with 'nice' personalities formed strong social bonds, which led to better health and reproductive outcomes. In contrast, those with 'aloof' or 'loner' traits had weaker social connections and lower fitness levels.
Researchers have found that one year of treatment with trastuzumab is as good as two years of treatment, improving outcomes and reducing the risk of disease recurrence. This conclusion comes from the HERA trial, which involved over 5100 women with early HER2-positive breast cancer.
Emergency medicine residency programs in Canada are underprepared to handle stroke cases, with limited lecture time and on-the-job training devoted to the topic. Researchers found that only two programs required on-the-job training in stroke neurology.
A study analyzing ten brands of cigarettes found significant variations in the concentrations of harmful and carcinogenic substances, which are not regulated by law. The researchers developed catalysts to reduce the toxicity levels of tobacco, including a material that reduces carbon monoxide emissions by 23%.
A recent study published in The Lancet found that hip resurfacing implants failed at a higher rate in women compared to men, particularly those with smaller head sizes. In contrast, men with larger femoral heads experienced comparable implant success rates to those who underwent total hip replacement.
Researchers found cells similar to mammalian neocortex in bird brains, contradicting long-held assumptions about their anatomy. The study opens up new animal models for studying the neocortex and its evolution.
Research found a significant association between sleep disturbance and cardiovascular risk factors in adolescents, including high cholesterol levels, BMI, and hypertension. Poor sleep habits were also linked to unhealthy lifestyle choices, such as consuming more fried foods and exercising less.
A new clinical trial at Loyola Medicine uses a genetically engineered immune system to fight melanoma. The treatment involves removing killer T cells from a patient and modifying them to recognize tumor cells as abnormal.
Scientists at the University of Minnesota developed a new genome editing technology called TALENS to genetically modify livestock animals. This technique allows researchers to study human diseases in animal models, potentially leading to cure development.
A new study finds that humanitarian aid workers are at significant risk for mental health problems in the field and after returning home. The risk factors include a history of mental illness, weak social support, and continual exposure to a challenging work environment, rather than experiencing particular dangerous situations.
Researchers mapped auto enthusiasts' brain activity and found that their fusiform face area responds to both faces and cars. The study suggests that expertise in one domain can improve performance in another, potentially aiding treatments for individuals with difficulty recognizing faces.
Research finds that sexually abused women are less likely to get screened for cervical cancer, with 42% of those aged 25-49 screened within the previous 3 years. The procedure evokes traumatic memories and feelings of shame, leading some to avoid screening or experience anxiety.
A new French study found that anticoagulants significantly reduce the incidence of catheter-related deep vein thrombosis in cancer patients. However, guidelines recommending prophylactic anticoagulant treatment for these patients are still under review.
Researchers have identified thousands of individual components in dissolved organic matter (DOM) in seawater using ultra-high resolution mass spectrometry. This allows them to infer information about the water's past, including its age, exposure to sunlight, and even which marine life once inhabited it.
A Kaiser Permanente study found that using electronic health records improved drug-treatment intensification, monitoring, and risk-factor control among patients with diabetes. The study also noted greater improvements among patients with poorer diabetes control.
A new clinical study by UCLA researchers found a direct correlation between pressure ulcers, or bedsores, and patient mortality, as well as longer hospital stays and readmissions. The study tracked over 51,000 Medicare beneficiaries and found that seniors with bedsores were more likely to die during their hospital stay.
The Calgary Stroke Program and Toronto Rehabilitation Institute have achieved Distinction status for their exceptional stroke care, demonstrating a commitment to best practices, leadership, and innovation. The awards recognize the organizations' rigorous accreditation process and dedication to improving patient outcomes.
Evidence suggests aspirin may lower colorectal cancer risk by 24% and mortality rates by 35%, but concerns remain about side effects. The ESMO Congress debates whether aspirin should be used for chemoprevention of colorectal adenoma/cancer.
The Michigan Center for Urban African American Aging Research will continue its work to improve the health of older minorities through education, scholarship, and research. The center's fourth five-year renewal will allow it to investigate why older urban minorities suffer from poorer health than their Caucasian counterparts.
A novel gene CIB2 has been associated with Usher syndrome, a devastating genetic disorder that affects both hearing and vision. The discovery provides new insights into the disease's progression and may lead to future therapeutic targets.
Scientists at CWRU will lead an international effort to reduce oil dependency by creating lighter, stronger materials for wind turbine blades and solar panels from biomaterials like plants, bacteria, and fungi. The project aims to educate the next generation of scientists working in sustainability.
Researchers found significant improvements in overall brain function, with most improvement in attention, concentration, planning and organizing. Muscular strength and walking ability also increased.
The George Washington University (GWU) and University of Maryland have received a $916,000 National Science Foundation grant to develop faster and more secure data transfer solutions for their research data. The two-year project aims to reduce costs and increase efficiency in data shipping methods.
The proportion of severely obese Americans has increased by 70% since 2000, with over 15 million adults classified as morbidly obese. The trend is slower than previously reported, suggesting a potential slowdown in the growth of severe obesity.
Researchers found that omega-3 supplementation improved the ratio of omega-6 to omega-3 fatty acids, leading to increased telomere length and reduced oxidative stress. The study suggests that omega-3 supplements may have potential in lowering the risk of age-related diseases such as coronary heart disease and Alzheimer's disease.