A 2-year study found that brief counseling by health professionals significantly increased physical fitness and activity levels in inactive adults, particularly women. The interventions were equally effective for men and women, with a 5% improvement in cardiorespiratory fitness.
Shiffrin's work has evolved over 35 years, developing Bayesian approaches to model human memory, attention, and learning. His theories have been widely recognized with numerous awards and publications.
A study of 13,958 Canadian women found that the median time from screening to first assessment was 2.6 weeks and to diagnosis was 3.7 weeks. Women with breast cancer waited shorter times than those with benign findings. However, even with expedited investigations, 10% of women with breast cancer still waited over 12 weeks for a diagnosis.
Scientists have discovered a natural method to track Atlantic salmon using strontium isotopes, which can reveal the fish's origin and migration patterns. This discovery could provide valuable insights into salmon habitat restoration efforts and inform more effective conservation strategies.
Researchers find that human population growth is slowing due to increased birth rates being offset by negative feedback from crowding and resource depletion. The world population is expected to reach 10-12 billion around 2100, despite a near doubling in numbers.
A large study has established a connection between being overweight and earlier-than-average puberty in white girls, but found a weaker link in black girls. Researchers suggest that genetic or environmental factors may be at play in the latter group.
Researchers are using new technology to measure coastal erosion in the UK, with a focus on the North Yorkshire coastline. They are creating highly accurate 3D computer models that detail when and where erosion is most likely to occur.
A study by University of Michigan doctoral student Miroslav Kummel found that plants associate with different fungi depending on light conditions, suggesting a choice-based mechanism for nutrient exchange. This discovery could have implications for the timber industry and our understanding of plant-fungus interactions.
Researchers at PNNL and the US Army Corps of Engineers used an acoustic camera to study fish behavior near a dam, capturing images of individual fish at distances of up to 30 feet. The camera provided detailed information on fish size and shape estimates, expanding understanding of how fish react to structures added to dams.
A novel vaccine has been developed to protect against Leishmaniasis, a disease caused by the single-celled parasite Leishmania. The vaccine targets a component of sand fly saliva, dubbed SP15, which appears to induce natural immune responses in mice.
Parents of children with chronic conditions are less likely to enroll in gatekeeping HMO plans, which are designed to improve care coordination. The study found that after switching to an HMO, kids with chronic illness had fewer visits to specialists and primary care physicians.
A recent Canadian Medical Association Journal study found that 88.5% of patients admitted to hospital with congestive heart failure underwent left ventricular testing, but only 23% received target doses of ACE inhibitors as prescribed in clinical trials. This underdosing rate is lower than previously reported rates in Europe and the US.
Research by Ricardo Carvajal at University of Michigan found a decline in epiphytes on coffee farms with intensive practices. However, even in most intensive plots, 'reservoirs' where epiphytes thrive were discovered, suggesting potential for conservation through targeted planting.
Researchers found that encasing pillows and mattresses with allergen-proof covers, washing bedding weekly, and vacuuming carpets reduced dust mite allergen concentrations. Dry steam cleaning also lowered allergen levels in upholstered furniture.
The Annals series examines complementary and alternative medicine (CAM), classifying hundreds of therapies into a new taxonomy. CAM modalities like herbs, acupuncture, and homeopathy are studied, as well as the social context and effectiveness of these practices.
In a breakthrough study, researchers at The Wistar Institute demonstrated the remarkable regenerative powers of MRL mice in healing heart tissue without drugs or cell transfer. After two months, damaged heart tissue looked normal and functioned well.
A four-year interdisciplinary study has identified young faults at the Oracle site and pinpointed the emissions responsible for the Pythia's trance state as light hydrocarbon gases from bituminous limestone. The study also found ethane, methane, and ethylene in spring water near the Oracle.
Vancouver is facing a high risk of an hepatitis A outbreak due to past infections among street youth, injection drug users, and men who have sex with men. The Canadian Medical Association Journal report highlights the need for vaccination programs to protect these groups.
A population-based study found that the annual rate of potential brain injury was 16 per 10,000 among males and 7 per 10,000 among females. The leading causes of brain injury varied by age, with falls from heights being common among young children and accidents involving motor vehicles or bicycles being common among older teenagers.
The journal launches a series on complementary and alternative medicine (CAM), classifying over 200 therapies into eight categories. ACP-ASIM opposes the legalization of physician-assisted suicide, citing concerns about inadequate care at end-of-life.
The American College of Physicians-American Society of Internal Medicine opposes physician-assisted suicide, considering it a threat to the patient-physician relationship. Instead, they suggest improving access to hospice care, palliative care, and pain management.
Researchers discovered strontium titanate deforms plastically at low stresses and temperatures, contrary to its brittle nature. Detailed analysis reveals the existence of different dislocation core structures, suggesting potential applications in forming or enhancing ceramic properties.
Researchers explore how ecological principles, such as the dilution effect, predict the movement of parasites and diseases in various ecosystems. Studies examine the impact of animal diversity on disease transmission, with findings highlighting the importance of community diversity in preventing the spread of infectious diseases.
Researchers investigate biocontrol insect failures, such as Urophora gallflies failing to control invasive knapweed, while also exploring chemical cues to deter mosquitoes. Additionally, studies on butterflies reveal increased populations following ponderosa pine restoration and nectar flower abundance.
The traditional 'ponderosa pine model' of forest fire management is being questioned due to its limitations. Presenters will present data on the ineffectiveness of prescribed burns in California's shrubland areas and boreal forests, highlighting the dominant role of weather and human demographics in fire regimes.
Researchers examine dam removal's effects on rivers, considering ecological, engineering, social and legal perspectives. The symposium explores how dam removal affects nutrient flow, habitat, and flood patterns, highlighting the need for better restoration strategies.
Researchers analyzed the lifting techniques of over 40 Special Olympics power lifters, finding that the sumo style is safer for the lower back and that better lifters keep the bar closer to their body. The study provides valuable insights for competitive power lifters to improve performance and reduce injury risk.
Researchers will examine climate change's effects on ecosystems, societal perceptions, and natural resources in the United States. Key findings include vulnerabilities of specific regions and possible coping strategies for adapting to projected water and nutrient shortages.
Researchers at Cornell University propose that silver-flourine compounds could exhibit high-temperature superconductivity, building on similarities to oxocuprates. Theoretical predictions are supported by detailed calculations and chemical reasoning, but experimental production will be challenging.
Researchers at Purdue University have created a mathematical model to analyze tire vibrations and identify the components that produce the most noise. The model, which creates a visual representation of the tire's vibration pattern like a fingerprint, will help engineers design quieter tires and reduce highway noise.
A Clemson-led team led by Linda J. Gahan has made a breakthrough in tracking genetically the tobacco budworm's efforts to become resistant to biotechnological pest controls. The discovery opens the door for monitoring resistance mechanisms and management strategies in insect pests.
A study found that physical maladies such as diminished energy and sleep disturbances can reliably indicate depression in the elderly. However, symptoms like work inhibition and weight loss are poor discriminators of depression in older adults due to factors like aging process and ill health.
A new skin patch has shown effective treatment of Parkinson's disease in a large-scale study. Patients who received the medication improved their motor skills by an average of 20-30% compared to those who received a placebo.
The study found that the nucleus accumbens responds proportionally to increasing rewards but not punishments, linking reward-related feelings to this brain area. Increasing reward cues evoked increasing self-rated happiness and nucleus accumbens activity.
Scientists have discovered the genetic and molecular means by which roundworms develop resistance to Bt toxins, which are safe to humans but threaten long-term effectiveness. The researchers identified a galactosyltransferase enzyme as key to toxin recognition, enabling the development of strategies to delay or circumvent resistance.
Researchers found upper airway sensory impairment in snorers and OSA patients, increasing the risk of obstructive breathing episodes. The study also showed partial reversibility of sensory changes with continuous positive airway pressure treatment.
The National Science Foundation has funded a study that sheds light on the soft tissue biology of dinosaurs, specifically their nasal structures. The research, led by Lawrence Witmer, provides clues to how air flowed and affected olfaction and heat exchange in these prehistoric creatures.
Researchers have designed and synthesized highly potent inhibitor compounds that could lead to an effective treatment for Alzheimer’s disease. The new inhibitors are substantially smaller, comparable in size to HIV protease inhibitor drugs, and still potent.
Researchers pinpointed the gene on chromosome 3 that causes myotonic muscular dystrophy Type 2 (DM2), a complex disease affecting multiple systems. The discovery allows for the immediate development of a genetic test and paves the way for a more complete understanding and treatment of this form of muscular dystrophy.
A prospective study reveals coeliac disease patients experience a substantial excess of deaths, particularly within the first three years after diagnosis and those with malabsorption symptoms. Early diagnosis is crucial to prevent mortality, as delay in diagnosis and poor treatment adherence can significantly worsen outcomes.
Scientists have found that between 700,000 to 2.7 million people die annually from malaria, with African children being the hardest hit. The disease also has significant economic implications, as countries with severe transmission experience slower growth rates than those with fewer infections.
Research by Lawrence Witmer reveals that many dinosaurs had large nasal passages, contrary to previous depictions. The study suggests that these passages were positioned closer to the mouths and farther from the eyes, which could have been important for heat exchange and other physiological processes.
Researchers propose integrating highly-active antiretroviral therapy (HAART) into existing tuberculosis-control infrastructure in less-developed countries. Directly-observed therapy has shown effectiveness in resource-poor settings with sustained commitment to uninterrupted care that is free to the patient.
Hyperion successfully navigated through rough terrain, including scree slopes and mud flats, covering a distance of 9.1 kilometers in an extended experiment. The technology has proven fundamental ideas for robotic explorers to operate at the poles of the moon or in polar regions of Mars.
Researchers have identified a gene that confers high levels of resistance in the tobacco budworm moth to genetically engineered crops with built-in insecticides. This discovery will enable farmers and government officials to take early steps to prevent uncontrollable outbreaks by detecting the early signs of pests evolving resistance.
Researchers at NYU Langone Health successfully immunized mice against Alzheimer's disease using a new vaccine that reduces amyloid plaque and soluble beta levels. The vaccine, modeled on a modified peptide, appears to be non-toxic and shows great promise for the treatment of Alzheimer's disease.
Researchers at the University of Maryland Biotechnology Institute have engineered rats to contain the genome of HIV-1, making them a valuable model for studying AIDS-related diseases. The rats develop clinical signs similar to those of AIDS in humans, including neurological abnormalities and organ damage.
A large-scale population study found that low cholesterol concentrations were associated with higher death rates among elderly people. The study, which analyzed data from over 3,500 men aged 71-93, suggested that long-term persistence of low cholesterol concentration increases the risk of death.
A new study reveals that dinosaurs' noses were positioned closer to the mouth than previously thought, offering insights into their respiratory system and evolutionary advantages.
A qualitative study of 32 people with HIV-1 or AIDS found that disintegration and loss of community are key factors driving desire for euthanasia and assisted suicide. The study suggests that clinicians must consider the complexity of patients' experiences when evaluating requests for physician-assisted suicide.
A new study in the journal Science found that dinosaurs' fleshy nostrils were typically positioned forward of their bony nose openings. This finding has implications for how dinosaurs breathed, smelled, and regulated body temperature and water loss, potentially providing clues to their adaptations to different environments.
A study found that a specific mutation in the human MDR1 gene affects P-glycoprotein expression, leading to decreased effectiveness of HIV-1 protease inhibitors in West Africans and African Americans compared to Caucasians. This could have significant implications for drug treatment in these populations.
Young adults experiencing nontraumatic chest pains may have cocaine use, researchers say. Effective treatments include nitroglycerin or calcium blockers for constricted blood vessels.
Researchers have developed a non-invasive optical technique to measure blood flow and oxygen consumption in the brain, allowing for simultaneous detection of both blood profusion and neural activity. This breakthrough could lead to new diagnostic, prognostic, and clinical applications.
A new nationwide study found that children of divorced parents showed more academic, psychological and behavioral problems a year before the divorce. The study also revealed that family dysfunction existed long before the marriage ended, with parents who would later divorce showing lower well-being in their children.
Researchers develop a technique to conjugate peptides to virus-like particles, generating high-titer antibodies that inhibit disease-causing cytokines. This approach shows promise in blocking or delaying onset of autoimmune diseases such as arthritis.
Researchers at University of Illinois dispute extensive trade theory for prehistoric society Cahokia, citing new evidence that local red flint clay was used instead of catlinite. The study uses a new mineral analyzer technique to identify the stone's mineral composition and find no connection between catlinite and the culture.
The discovery of 70 prehistoric stone ax heads at the Grossmann site near O’Fallon, Illinois, sheds new light on Cahokian society. The pristine ax heads, made from St. François basalt, suggest a possible connection to social status and wealth.
Scientists at the University of Illinois have devised a process called nanoparticle haloing that imparts stability to complex fluids, enabling control over phase behavior and structure. This approach allows for the creation of designer colloidal fluids with tailored properties.
A Mayo Clinic study found that overweight or obese patients had their first heart attacks at a younger age, with obese patients experiencing an average of 8.2-year gap compared to normal-weight patients. The study also revealed similar in-hospital outcomes among the three groups.