A study published in Review of Policy Research questions the role of speed limits in improving highway safety. Research by Dr. Robert O. Yowell suggests that technical progress, seat belt use, and increased road maintenance contribute more to declining fatality rates.
Researchers found that young intravenous drug users, mainly heroin and methadone abusers, show brain damage linked to Alzheimer's disease. The study suggests increased risk of brain damage associated with opiate abuse, particularly among young individuals.
Researchers use geophones to estimate elephant numbers by detecting footfalls, providing a more accurate and time-efficient method than counting dung balls or aerial censuses. The new technique has the potential to improve conservation management and reserve planning in central Africa.
Researchers found that neutral grasslands recover faster than chalk grasslands, which take at least 50 years to re-establish. Soil compaction and vehicle damage contribute to the long-lasting damage, highlighting the need for effective control measures to manage these areas.
A study in Manitoba found a socioeconomic gradient in healthcare utilization, with low-income areas experiencing more hospitalizations and ambulatory visits. This challenges the assumption that frequent outpatient care for Ambulatory Care Sensitive conditions leads to lower hospitalization rates.
A recent study published in Psychological Science found that high-poverty schools often struggle with inadequate educational resources, leading to a significant disadvantage for poor children. In these schools, up to 40% of students fail the writing test and are taught by non-highly qualified personnel.
Researchers found that wearing knee-length graduated compression stockings reduced DVT risk by 95%, with only two participants developing the condition out of nearly 2,500. The review also highlights the importance of regular exercise and hydration to counteract the risks of long-haul flights.
A study by Oxford Scientists found that climate envelope models are poor at predicting biodiversity changes, with only a 50% success rate in agreeing on direction of change. Using multiple models, however, can increase accuracy to over 75%. This approach may provide a solution for improving environmental policy making.
A recent study published in Ecology Letters explores the complex relationships between biodiversity and ecosystem function. The research reveals that both high and low levels of biodiversity can have negative consequences for ecosystem health, with intermediate levels often being the most beneficial.
A study found that chronic CMV infection is associated with frailty in older women, particularly those with high levels of inflammatory markers. The research highlights the importance of understanding the causes of frailty and developing potential treatments to improve outcomes for aging populations.
A seven-year study of over 3,000 black and white men and women aged 70 to 79 found that regular exercise reduced the risk of mobility problems by half. Participants who exercised regularly had lower rates of disability and health decline compared to those who were inactive.
In a study published in Psychophysiology, researchers found that humans display decreased balance control and increased muscle stiffness when viewing unpleasant images, mirroring the behavior of deer in a threatening situation. This phenomenon is linked to neural circuits promoting defensive survival and is observed in various species.
A Swedish study found that mothers who did not room-in their babies at night rated closeness between mother and infant lower and were more worried about sleep and disturbing noises. The study suggests that negative staff attitudes towards night rooming-in may negatively impact breastfeeding rates.
A study found that eliminating affirmative action would lead to a significant decline in acceptance rates for African American and Hispanic students at elite universities. Acceptance rates for these groups would fall by almost two-thirds and one-half, respectively. In contrast, white students' acceptance rates would rise by only 0.5 pe...
A study of 89 cardiac patients found that those with longer intensive care unit (ICU) stays had a significantly lower survival rate, with a 33% mortality rate among those staying 16 days or more. The quality of life for surviving patients was also affected by the duration of their ICU stay.
States that set higher Medicaid payment rates can enhance the program's attractiveness to potential employees, but moderate rate increases have a limited impact on access and use. Reducing fees by five to ten percent may also be an option when state budgets tighten without serious negative consequences.
A new study by Dr. Jane Dimmitt Champion and her team found that minority adolescent women with a history of sexual/physical abuse are at higher risk of pelvic inflammatory disease and HIV/STDs. With better screening, these health problems could be decreased.
A new study by J. Lawrence Broz suggests that the economic status of US citizens plays a significant role in shaping aid policies towards Mexico and Asia. The study found that constituents who oppose ESF rescues are more likely to lose from globalization, making them less concerned with global economic stability.
A study found that feelings of threat lead to increased support for US military intervention, restrictions on foreign visitors, and increased surveillance. The authors also discovered a link between anxiety and opposition to military action, but not to policies targeting Arabs.
A study published in the Journal of Cosmetic Dermatology found that cosmetic-grade mineral oil is not comedogenic, contradicting previous assumptions. As a result, consumers should look for skin care products labeled as non-comedogenic rather than 'mineral oil-free'.
A recent study published in the Journal of Cardiac Surgery found that robotic-assisted cardiac procedures were not more expensive than conventional techniques, despite a higher capital investment. The research showed significant cost benefits from robotic surgery, making it a justified investment for emerging technology.
Researchers investigated Vibrio interactions with the bivalve immune system, identifying factors that influence vibrios' fate within the host. Different Vibrio species and strains adopt a common strategy to undermine host cell functions, disregulating signaling pathways.
Researchers found that undergraduate students react quickly to words with positive or negative connotations, indicating automatic memory links. These links can guide future behavior and decision-making in politics.
The Bush administration's foreign policy has been widely criticized for its perceived self-interest, leading to widespread distrust and cynicism among the global public. A survey by Pew Research Center found that most people in Pakistan, Turkey, Jordan, and Morocco believe the US ignores their interests.
North Pacific right whales have been observed in the Southeastern Bering Sea slope and shelf, eastern Aleutian Islands, and Gulf of Alaska. The study refutes previous claims of a habitat shift and suggests these areas are crucial to their distribution.
Researchers found that individuals over 80 with active root caries had twice the odds of cardiac arrhythmias. The study suggests that oral health issues in older adults can be a marker of general physical decline and may require serious attention.
The role of the National Security Council adviser requires balancing brokerage and political advocacy to maintain neutrality. However, in limited forms, advocacy can be beneficial when an underrepresented point-of-view needs to be heard. The adviser's ability to make sound decisions depends on effective processes.
Researchers found that alarm pheromone triggers aphids to produce winged offspring and leave their host plant. Applying pulses of alarm pheromone could help reduce damage caused by aphid infestations in European fields.
A recent study published in Psychology of Women Quarterly found that yoga can help women buffer against negative messages about body image and self-acceptance. The research suggests that practicing yoga may lead to improved mental health outcomes, particularly for individuals at high risk of developing eating disorders.
Researchers found that certain populations of bacteria in contaminated coastal waters can degrade crude oil components, particularly polycyclic aromatic compounds. This discovery suggests that indigenous microbiota have evolved to handle the pollution, paving the way for potential bioremediation methods.
A survey of over 250 women found that prolonged labor can have a significant emotional impact on first-time mothers, with 60% reporting it will affect them for life. Despite this, many women remain calm and find the experience exciting, with 84% saying they were excited to give birth.
A study published in Journal of Research on Adolescence found that minority youth self-esteem increases with age, driven by family support and positive school climate. Ethnic differences were also observed, highlighting individual variations in adolescent development.
Research found that prenatal cocaine exposure increases heart vulnerability to ischaemia/reperfusion injury in late adult life, with male hearts being more susceptible. Fetal programming by cocaine abuse and hypoxia also contribute to lifelong cardiovascular consequences.
A review of studies suggests that a high-energy diet during pregnancy can 'program' an individual's appetite and increase their risk of developing heart disease and diabetes later in life. Rats fed a high-fat diet during pregnancy show abnormalities in their large arteries and kidney function in offspring.
A recent study reveals that grandsons and granddaughters of female rats fed an inadequate diet during pregnancy and/or lactation are more likely to become obese and insulin resistant. The research extends previous findings on the negative effects of poor maternal nutrition, now showing a two-generation impact.
Research finds that prenatal exposure to increased or decreased levels of nutrition leads to an increased risk of obesity in postnatal life. The study shows that the fetus has a functional capacity for regulating its appetite, which can be influenced by signals of nutritional status.
A new world map of plant biodiversity has been published, providing a common geographical standard for global nature conservation strategies. The atlas reveals the most species-rich areas on earth, with Borneo's lowland rainforest standing out as the most diverse, containing around 10,000 plant species.
A recent study of over 8,500 patients discovered that cardiovascular risk factors, particularly albuminuria, can affect renal function even in those without end-stage renal disease. The International Society of Nephrology advocates proactive albuminuria screening to detect renal impairment and cardiovascular risk.
Research suggests that embryonic nutrition can impact health outcomes, with adaptations set in place during fetal development potentially leading to benefits later in life. For example, meadow voles have coats thickened or thinned based on day length exposure in early pregnancy, with no immediate survival value but later benefits.
A review of nearly 1.8 million people age 52 and older revealed that hospitalized individuals are more likely to commit suicide. Researchers conclude that hospitalization may be a factor in suicidal tendencies among older adults, with women at increased risk.
Researcher Patrice G. Guyenet proposes that central chemoreceptors are located in the retrofacial region of the brainstem, loaded with glutamate, to sense pH changes in cerebrospinal fluid. In contrast, Dr. Richerson suggests that these receptors are found near midline blood vessels to 'taste' blood pH levels.
Researchers found that primary care providers are equally likely to diagnose and treat depression in older African Americans compared to whites. The study highlights the importance of managing depression in the elderly due to multiple existing illnesses.
A study of US government financial managers found that timely feedback from supervisors can mitigate stress and encourage ethical action. The majority of respondents reported feeling less stressed when they received regular, constructive feedback on their performance.
A study on genetic testing in families found that individuals with a family history of disease tend to form cliques with those who test positive for a mutation. The timing of disclosure is influenced by the type of disease and perceived need to prepare, highlighting the complexities of sharing genetic information within families.
The authors of a recent article argue that mental health evaluators with adequate forensic training can provide valuable information to judges on custody-relevant issues. However, experts disagree on the role of these evaluations, with some suggesting they should only be used in serious cases of abuse or neglect. The symposium issue of...
Researchers found that patients motivated for assisted suicide due to chronic illness, loss of sense of self, or fear of future decline. These motivations highlight the need for healthcare providers to address the quality of dying experience with their patients.
A recent study by Judith Feeney found that emotional reactions to hurt in relationships are characterized by a sense of personal injury and negative emotions. The research suggests that hurt is elicited by relationship transgressions that damage an individual's core beliefs about themselves or others.
A study examining nearly 100,000 patients found that nearly half did not receive recommended laboratory tests to monitor potential drug side effects. The researchers conclude that lapses in drug safety monitoring are common and further research is needed to determine the extent of its impact on actual medical problems.
A large-scale study identified three key areas of stress faced by new mothers: their maternal role, negative physical and lifestyle changes, and lack of social support. The study also found that personal factors such as tiredness, lack of sleep, and decreasing social activity were major concerns.
Research by Ensley and Pearson found that parent-child businesses exhibit higher levels of shared strategic cognition and lower conflict compared to familial and non-family teams. This suggests that the long-term relationship between family members may lead to stronger business outcomes.