Articles tagged with United States Population
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
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A study of female red squirrels found that those born into favorable circumstances with abundant food, warmer spring weather, and lower population experienced increased reproductive success and longevity. In contrast, those born into harsher conditions struggled to reproduce and lived shorter lives.
The Robert Wood Johnson Foundation's Active Living Research Program highlights the need for tailored interventions to address disparities in physical activity participation among underserved communities. The special issue identifies safety concerns related to crime as a key barrier to active living, while also pointing towards policy a...
A recent study found that properties located within a floodplain have significantly lower sales prices compared to those outside the flood zone. The estimated price reduction is 7.3% on average, with a total loss of $11,600.
A team of researchers, led by Ted Goebel and Michael R. Waters, revises the timeline of early American arrival, proposing a 15,000-year-old migration from Alaska. New data synthesizes genetic, archaeological, and skeletal evidence to explain the complex process of peopling America.
A recent molecular analysis of ancestry across Latin America has revealed a marked differentiation between regions, demonstrating a 'genetic continuity' between pre-and post Columbian populations. The research shows that mostly Native and African women and European men contributed genes to the subsequent generations.
A new study by University of Southern California economist Guillaume Vandenbroucke reveals that the decrease in transportation costs and population growth were key drivers of US Westward Expansion. The study found that technological innovation played a significant role in reducing transportation costs, leading to an increase in land ac...
Research published in American Journal of Lifestyle Medicine suggests that lifestyle changes can mitigate the risks associated with metabolic syndrome. The study highlights exercise and caloric restriction as valid treatment strategies for this prevalent condition, which affects 23% of adults in the US.
A new study published in PLoS Medicine suggests that antidepressants only provide clinically significant benefits for a small group of severely depressed patients. However, even among these patients, the improvement is not very great, and depressed people can still improve without chemical treatments.
A study found that US adults have a higher prevalence of stroke than Europeans, mainly due to higher rates of stroke risk factors in the US. The gap is more pronounced among poor Americans, who are more likely to have a stroke.
A meta-analysis of 34 clinical trials found venlafaxine (SNRI) outperformed SSRIs in treating depression, resulting in a 5.9% increased remission rate. This translates to the need for doctors to treat 17 patients with venlafaxine to achieve one patient's benefit.
The study reveals that white sharks migrate to two distant destinations annually, favoring specific areas along the California coast. Genetic analysis also shows that Pacific Ocean basin populations are genetically distinct, indicating long-term isolation in the Eastern Pacific.
Scientists analyze lessons from cod collapse to advocate sustainable tuna management, including MSC certification and public awareness. Innovative research using data-logging tags can help protect bluefin tuna populations.
NOAA scientist Nat Scholz reveals that pesticide mixtures have a greater toxic effect on the salmon nervous system than expected. The findings have important implications for threatened and endangered salmon populations and may also affect human health through contaminated food supply.
A genetic variant in the Reelin gene significantly increases the risk of developing schizophrenia in women, according to a recent genome-wide association study. The study analyzed DNA from patients with schizophrenia and healthy controls across multiple populations, identifying a common variant that affects women only.
A new study reveals that well-meaning efforts to protect cougars in Washington State have actually increased dangers for the species. Biologists are now scrambling to find a science-based path to coexistence between people and predators.
A recent study found that patients who stop taking clopidogrel after a heart attack are at higher risk of a heart attack or death in the first 90 days. The risk is nearly twice as high during this period compared to later periods, suggesting a possible 'rebound effect' on thrombotic events.
A new study reveals that acculturation can have varying effects on men and women's drinking habits along the Texas-Mexico border. Researchers found that immigrant groups who acculturate to mainstream America tend to experience more alcohol-related problems, but this impact differs by gender.
The use of clinical trials to inform Medicare coverage decisions disproportionately affects older women with comorbid conditions, differing significantly from the target population. This disparity highlights the need for more representative trial populations to ensure better value and improved outcomes for Medicare beneficiaries.
Researchers provide first genetic dissection of European American population structure, identifying key genetic variants that can correct for population substructure in disease association studies. By using a panel of 300 markers, researchers can determine whether observed associations are genuine or false-positives.
The National Arthritis Data Workgroup estimates over 46 million US adults have diagnosed arthritis or other rheumatic conditions. By 2030, this number is expected to rise to nearly 67 million, posing a significant burden on healthcare and public health systems.
Large numbers of poor Americans are suffering from parasitic infections like toxocariasis, cysticercosis, and toxoplasmosis. These neglected diseases disproportionately affect minority populations living in inner cities and poor rural areas, causing significant health issues such as lung disease, epilepsy, and congenital birth defects.
A recent study published in BMC International Health and Human Rights found that the health and social conditions of indigenous peoples have improved faster than those of non-indigenous populations in Australia, Canada, and New Zealand. However, the gap widened in Australia during the 1990s.
Researchers have successfully implemented community-based projects to address cancer disparities among African-American and Hispanic communities, and Navajo Nation population. The initiatives improve data collection, provide insight into social factors, and lead to sustained health improvements.
A comprehensive genetic analysis suggests that the ancestors of Native Americans originated from a single source in east Asia, with a unique genetic variant widespread across both continents. The study's findings support the land bridge theory and hint at evidence for coastal migration to South America.
Researchers found that vaccinating half of a population can reduce cholera cases by 89% in unvaccinated individuals and 93% overall. Mass vaccination is a viable strategy to control endemic cholera outbreaks.
A new report from Cornell reveals that people with disabilities are underrepresented in the workforce, with only 38% employed compared to 80% of those without disabilities. Additionally, Americans with disabilities face a higher risk of living in poverty, with 25.4% facing economic hardship.
The University of Washington's new DNA fin-printing project aims to create open-access databases for Pacific salmon populations, helping managers and scientists understand their ocean migration. By employing genetic markers, researchers can distinguish between individual fish and track population movements, informing conservation effor...
Hispanic patients receive fewer vascular surgeries than the general population and have worse outcomes, with higher rates of amputation and death following procedures. Socioeconomic factors, genetic variations, and delayed treatment may contribute to these disparities.
Chronic kidney disease is more common than previously thought, affecting over 13% of the US population, primarily those with diabetes and hypertension. The study highlights the importance of blood pressure control, blood sugar management, and avoiding toxic medications to slow disease progression.
Dr. Paul K. Whelton has been awarded the American Heart Association's Population Research Prize for his pioneering work in documenting the burden of cardiovascular diseases. His research has provided vital data on hypertension and its impact on populations worldwide.
Ralph L. Sacco, a Florida neurologist, received the American Heart Association's Chairman's Award for his leadership in creating Power To End Stroke, a nationwide educational campaign aimed at raising stroke awareness among African Americans. The program has reached every state in the continental US and made measurable progress in spre...
The American College of Physicians has released a new clinical practice guideline on diagnosing and treating stable chronic obstructive pulmonary disease (COPD). The guidelines recommend the use of spirometry in patients with respiratory symptoms, particularly shortness of breath, to diagnose airflow obstruction. For symptomatic patien...
Researchers found that Tibetans have 10 times more nitric oxide in their blood than low-altitude dwellers, leading to increased blood flow and improved oxygen delivery. This adaptation allows them to thrive at high altitudes despite low oxygen levels in the air.
A study by Dr. Philip Setel highlights the need for comprehensive civil registration in developing countries to track vital statistics, benefiting individuals and societies. The authors argue that affordable remedies exist to overcome stagnation, but their implementation is crucial for policy formation and accountability.
The researchers will examine four Kansas communities and two Iowa communities to see whether claims that ethanol plants revitalize the towns hold true. They will study local ownership, attitudes towards ethanol plant workers and farmers, and community investment.
A recent study found that methicillin-resistant Staphylococcus aureus (MRSA) infections are more common than previously thought, affecting certain populations disproportionately. The study estimated that 94,360 invasive MRSA infections occurred in the US in 2005, resulting in 18,650 deaths.
The Lancet study found that maternal mortality rates in sub-Saharan Africa are not decreasing fast enough to meet the MDG5 target, with a yearly rate of decline required to achieve the target being 5.5%. The authors conclude that a huge emphasis on improved pregnancy and delivery care is needed throughout the developing world.
The article suggests several policy options to address immigrants' limited access to health care, including expanding health insurance programs and improving language barriers. Researchers emphasize the importance of addressing these vulnerabilities to ensure better health outcomes for this growing segment of the U.S. population.
A study of over 1050 North American and European musicians found that they are more than twice as likely to die an early death compared to the general population. Long-term drug or alcohol problems accounted for nearly one in four deaths, with some stars continuing to experience higher death rates even 25 years after achieving fame.
A new study by the New York Academy of Medicine highlights the critical need to address vaccination coverage among hard-to-reach populations. The authors propose achievable strategies to increase immunization rates among these groups, including unconventional site distribution and patient reminders.
Recent progress in preventing and treating end-stage renal disease (ESRD) in the US is cause for cautious optimism, with improvements in survival expectations and increased use of fistulas for hemodialysis. However, skyrocketing costs are a major concern, with Medicare costs reaching $20.1 billion in 2004.
A six-year study found that higher unemployment rates were associated with more penetrating trauma admissions, while lower unemployment rates correlated with increased blunt trauma admissions. The authors suggest that socioeconomic status and demographics play a role in the types of trauma admissions.
A new study reveals that 23% of hospital-based physicians in China are smokers, significantly higher than the global average. The study prompts China CDC to initiate an antismoking campaign aimed at physicians and medical students.
A University of Minnesota study found that only 37% of the US population is eligible to donate blood, a significant decrease from the previously estimated 177 million. The conventional method overestimated the national pool by 59%, mainly due to factors like chronic diseases and high-risk behaviors.
A new study found that African Americans on death row for killing non-whites are less likely to be executed than other condemned prisoners. Blacks who kill whites face a higher risk of execution, with a disparity in execution rates based on the race of victims.
A new study found that hip and knee replacements are rarely performed in patients over 100 due to concerns about short-term life expectancy. However, the research suggests that these procedures should not be denied solely based on age and that the benefits may outweigh the risks.
A new USC study finds that Hispanics born in the US are more likely to suffer from conditions like diabetes and high blood pressure compared to those who emigrate from Mexico. This contradicts the long-held 'Hispanic Paradox,' which suggested Hispanics in the US were healthier than whites despite being poorer and less educated.
Sweden's baby boom highlights the need for efficient care services for older adults in the US, with a focus on moderate needs. The country's system of local, service-based care helps keep seniors independent longer.
A study published in JAMA found that non-Hispanic white youth have the highest incidence of diabetes, with type 1 being the predominant kind. The study, which included over 2,400 multi-ethnic youth with newly diagnosed diabetes, also found a significant increase in type 1 diabetes cases worldwide during the past two decades.
A new study by Brown University economist Nathaniel Baum-Snow reveals that the American highway system played a significant role in causing population declines in central cities. The research, published in the Quarterly Journal of Economics, suggests that one new highway passing through a city reduces its population by about 18 percent.
A UGA study finds that weaker nations succeed in 39% of military conflicts, often due to the objective requiring cooperation rather than brute force alone. The model created by Patricia L. Sullivan accurately predicts probabilities of success in 80% of conflicts.
A study of 320,000 men found that former military personnel are twice as likely to kill themselves as the general population, especially those with health problems. The research highlights the need for clinical and community interventions targeting veterans at risk.
Post-traumatic stress disorder (PTSD) was prevalent among those affected by Hurricane Katrina, with a diagnosis rate of over 38% in New Orleans. The prevalence is significantly higher than the general US population, suggesting a need for long-term, coordinated mental health response as part of disaster relief efforts.
A new study found that breastfeeding rates among inner-city infants born in Baby-Friendly hospitals were comparable to the overall US population, suggesting positive effects of the initiative. The study identified factors influencing breastfeeding duration, including postpartum support and education.
A recent study published in Mayo Clinic Proceedings found that two-thirds of people using herbs do so without following scientific guidelines. The study, which analyzed data from a 2002 National Health Interview Survey, highlights concerns about the potential adverse effects and interactions of herbal supplements with therapeutic drugs.
New observations by the Hubble Space Telescope reveal that a massive globular cluster can go through several periods of intense stellar formation, contradicting the previous accepted single burst theory. The analysis shows three distinct populations of stars, each with a slightly different mix of chemical elements.
A study found that liver stiffness measurement by transient elastography can predict severe portal hypertension in patients with hepatitis C-related cirrhosis. The technique is less invasive than traditional methods like HVPG measurement and shows promise for non-invasive diagnosis.
A new study by Stanford University atmospheric scientist Mark Z. Jacobson found that ethanol-fueled vehicles increase ozone-related mortalities in the US by about 200 deaths per year compared to gasoline. Nationwide, E85 is likely to increase asthma-related emergency room visits and respiratory-related hospitalizations.
A RAND Corporation study reveals the proportion of severely obese Americans increased by 50% from 2000 to 2005, while moderate obesity grew at twice the rate. This challenges the notion that bariatric surgery can significantly impact morbid obesity trends.
Overweight and obese individuals are at a 50% increased risk of developing asthma, with targeted interventions potentially reducing incidence. Obesity contributes to various respiratory issues, including reduced lung function and increased oxygen cost of breathing.