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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Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A new study warns that widespread adoption of the 'test and treat' policy for HIV could lead to a significant increase in multi-drug resistant HIV cases. The study suggests that this approach could double the number of MDR cases among men who have sex with men (MSM) in LA County over the next 10 years.
A study of over 3.3 million PCI procedures found that major bleeding was associated with significantly increased in-hospital mortality, with an estimated 12% of deaths related to bleeding complications. The researchers suggest that bleeding-related mortality may be modifiable through established strategies.
A study of 137 mummies from around the world reveals that preindustrial hunter-gatherers suffered from clogged arteries, challenging the assumption that modern lifestyles are the primary cause. The researchers found artery plaque in every single population studied, indicating a more basic connection to inflammation and aging.
A large epidemiological study found that short-term exposure to outdoor heat increases the risk of hospitalization for COPD and respiratory tract infections in the elderly. The risk was consistent across all age groups and genders, with a strong association between heat and hospitalizations.
A new study has found a significant prevalence of vitamin B12 deficiency among refugees arriving in Australia. The research highlights the importance of regular screening to prevent severe malnourishment and its consequences, including developmental defects in unborn children.
A study by William Leonard examines the roles of diet and energy expenditure in contributing to obesity. The research shows that human dietary patterns have evolved over time, with a shift from subsistence to modern lifestyles leading to increased energy imbalances.
Researchers at Yale School of the Environment linked exposure to perfluorinated chemicals (PFCs), including PFOA and PFOS, with an increased risk of osteoarthritis. The study found stronger associations for women than men, highlighting the need for further exploration of health effects in susceptible subpopulations.
The study found that growing proportions of Harris County's Asian adults are now the U.S.-born children of Asian immigrants, and they are even better educated than their parents. This demographic shift suggests a changing face for the local Asian population in Houston.
Researchers found that high-dose, school-based interventions increased active minutes during PE classes, after-school programs, and walking to school. Community initiatives also led to improvements in school cafeteria lunch menus offering fresh produce.
A new DNA study from the University of Texas at Austin provides genetic evidence for the impact of Aztec imperialism on Mesoamerican populations. Researchers found that the pre-conquest maternal aDNA did not match those of the post-conquest era in Xaltocan, suggesting significant genetic changes
A new peer-reviewed journal will identify crucial LGBT healthcare needs and provide a much-needed authoritative source for LGBT health research. The journal will promote optimal healthcare for millions of sexual and gender minority persons worldwide by focusing on their specific health concerns.
A new study by researchers at the University of Washington and in Indonesia has found that the population of critically endangered Sulawesi black macaques has stabilized over the past decade. The long-term survey, which began in 1999, shows a gradual increase in the number of groups and individuals per square kilometer, with the popula...
A recent study found that lung cancer mortality rates are disproportionately high among blacks living in the most segregated counties in the US. The study suggests that addressing socioeconomic disparities and improving access to healthcare may be key to reducing these disparities.
Researchers found that a virulent strain of H. pylori reduced the risk of deaths from stroke by 55% and lung cancer by 45%. The study, which analyzed data from nearly 10,000 individuals, also found no association between H. pylori positivity or cagA-positivity and all-cause mortality.
Average employer-sponsored family health insurance plan premiums increased by 62% between 2003 and 2011, rising to $15,022 per year. Employee payments for their share of health insurance premiums also rose by 74%, with deductibles more than doubling.
The study estimates that only 32,000 to 35,000 lions remain on the savannah, down from nearly 100,000 in 1960. The research identified 67 isolated areas of savannah with low human impacts and densities, but most are in West Africa, where lion populations have declined drastically.
A new study reveals lions have lost 75% of their original natural habitat in Africa, leading to devastating declines in lion populations across the continent. The research identifies only 67 isolated regions with significant lion populations, highlighting the urgent need for conservation efforts.
Research from USC finds that expectant mothers' beliefs about family roles predict higher birthweights and lower asthma rates in their children. The study suggests that cultural values can provide tangible physical health benefits.
A study published in Genetics Society of America's journal found that Native Americans and Northern Europeans are more closely related than previously thought. The research used statistical tools to show that Neanderthals mixed with modern humans also revealed a common ancestor between Native Americans and Northern Europeans.
A higher density of neurologists and neurosurgeons in the US is associated with a decreased risk of death from stroke, according to a new study. The study found that an increase of one neuroscience provider per million population was linked to 0.38 fewer deaths from stroke per million population.
Routine HIV testing can significantly reduce AIDS-related morbidity and death, as well as HIV transmission. Implementing this strategy would provide a roadmap for an AIDS-free generation.
The study provides the first report of state-level COPD prevalence, revealing significant regional variations. Nationwide, 6% of non-institutionalized adults reported having COPD, with higher prevalence in select states.
Researchers created a culturally relevant guidebook to improve Hispanic health and behaviors, focusing on physical activity and nutrition. The guidebook was well-received by community residents and addressed the Latino Paradox, highlighting the shift in healthy eating habits when immigrants arrive in the US.
Researchers funded by NSF found that changing climatic conditions, rather than tourism, are driving the decline in chinstrap-penguin populations. The study analyzed data from 1994-2011 and found a significant decline of 50% in breeding pairs at Baily Head since 1986-87.
A study by Jay Teachman found that veteran populations are becoming more concentrated in rural areas surrounding military bases. This has led to a decrease in contact between veteran and non-veteran populations, with the proportion of veterans in America declining by an average of 15.54% since 2000.
A multinational team of scientists has sequenced 1,092 human genomes to determine the standard range of human genetic variation. This will enable biologists and physicians to interpret a patient's disease genome in a broader context, leading to better understanding and targeted treatment.
The project profiles rare and common genetic variations in 1,092 individuals from 14 populations, capturing up to 98% of sequences for rare gene variants occurring in at least 1% of the population.
Researchers have compiled the largest human genetic variation catalog, involving over 1,000 individuals from 14 ethnic groups. The massive resource will help medical researchers find the genetic roots of rare and common diseases in populations worldwide.
A recent study has uncovered two genetic deletions that are responsible for severely low sperm count, accounting for 8% of cases. The most common deletion increased the risk by a factor of 2, while the rare b2/b4 deletion doubled the risk and accounted for 6% of cases.
Researchers found that mother wolves' body weight and pack size play a crucial role in enabling pups to survive and thrive. The study suggests that managers can use information on pack size, female wolf weight, and disease prevalence to set harvest limits and ensure sufficient population growth.
A study found that reading food labels is associated with lower body mass index in women, with a reduction of 3.91 kg for an average woman. Urban, high school-educated, and university-educated women tend to pay more attention to nutritional information.
A new study found that 9.5% of the population is at risk of high annoyance from road traffic noise, while 2.3% experience highly disturbed sleep. Long-term exposure to noise can increase risks of heart attack and high blood pressure.
New research reveals that tick-borne diseases extend 'beyond Lyme' in the Southeastern United States, where lone star ticks spread ehrlichiosis and spotted fever rickettsiosis. Experts advise saving the tick that bites you to identify potential diseases.
A new study reveals a significant prevalence of respiratory problems among people aged 85 years and over, with 20% of men and 21% of women having asthma or COPD. The study highlights the growing need for healthcare professionals to understand the challenges faced by this rapidly aging population.
A recent study published in the Journal of Dental Research estimates that approximately 47.2% of US adults have periodontitis, with higher rates among males, Mexican Americans, and those with lower education levels. The study also found significant disparities in periodontal disease prevalence across different age groups.
A recent study found that Mexican-Americans with an ancestral link to Amerindian tribes have higher insulin resistance levels, a key indicator of several chronic conditions. The research suggests that ethnicity information is crucial in identifying individuals at high risk of disease, and that genetic markers can be used for personaliz...
A new statistical model predicts a significant increase in the number of people over 85 worldwide by 2100, outpacing previous estimates. This will result in fewer working-age adults supporting elderly populations, posing challenges for social security systems globally.
A new University of Utah-led study suggests that global cooling, rather than population collapse, was the primary driver of reduced wildfires globally. The research analyzed charcoal samples spanning 2,000 years and found a significant decline in fires post-1500 AD, which coincided with the onset of the Little Ice Age.
The Amish population is estimated to be over 251,000, with more than 60% of existing settlements founded since 1990. The community grows rapidly due to high birth rates and limited conversions, leading to predictions of over 1 million Amish and 1,000 settlements by 2050.
A recent NIH-funded study found a 2.8% overall rate of new HIV infections among black MSM in the US, with a higher incidence rate among individuals aged 18-30. The study also identified associations between HIV infection and high rates of untreated STIs and poverty.
A study found that higher population density of neurosurgeons in the US is associated with lower mortality rates from motor vehicle accidents, which are often caused by traumatic brain injuries. Rural areas tend to experience more MVA-related deaths due to slower medical response times and reduced access to trauma resources.
A study of HIV-positive persons born outside the US finds they are more likely to be Hispanic or Asian and have higher rates of heterosexual contact. The researchers also found that these individuals face challenges accessing medical care due to language and cultural barriers.
A recent study found that Native American populations originated from at least three migrations, with most descending from the First American migration through Beringia. This migration was later joined by two additional streams, which contributed to the genetic diversity of Arctic populations and some Na-Dene-speaking groups.
The July 2012 Genetics Society of America's journal features research on increasing association mapping power and resolution in mouse genetic studies through meta-analysis for structured populations. The study also explores the properties and power of a Drosophila Synthetic Population Resource for dissecting complex traits.
Restricting daily sitting time to less than 3 hours and watching TV for less than 2 hours a day may extend US life expectancy by 2 and 1.4 years respectively, according to an analysis of published research in BMJ Open.
A recent study published in JAMA found that the rate of community-onset MRSA infections has decreased significantly among US military personnel. Community-onset skin and soft tissue infections due to MRSA peaked at 62% in 2006 before declining annually, with a proportion of 52% in 2010.
A study by Universidad Carlos III de Madrid found no causal link between immigration and crime rates in Spain. The researchers analyzed data on crimes committed per inhabitant and immigrant population characteristics to conclude that language and education are key factors influencing crime.
Research in Spain finds low correlation between immigrant population and crime, with education and language playing key roles. Young men from immigrant populations are more likely to commit crimes.
A CU-UCSC study finds that California condors continue to suffer from lead exposure, with nearly half of the population showing signs of poisoning. The research highlights the need for sustained human intervention to stabilize and grow the species' population.
UC Santa Cruz researchers suggest that Lyme disease has increased across northeastern and midwestern US over past three decades, contrary to stabilizing deer populations. Red fox declines are attributed to coyote growth, leading to smaller animal populations that serve as ticks' hosts.
A new study at Brigham and Women's Hospital found that living alone may be a risk factor for death, especially due to cardiovascular problems like heart attack and stroke. Participants with atherosclerosis who lived alone had a higher rate of death over four years compared to those who did not live alone.
A new study confirms cougars are re-populating their historical range across the US Midwest. The research reveals cougar populations have spread from Texas to Ontario and Manitoba, with males traveling long distances.
A study by University of Notre Dame Economist Abigail Wozniak found that highly skilled immigrant arrivals lead to a decrease in the native population's skills. In smaller and more isolated cities, this effect is particularly pronounced.
A Kaiser Permanente study of over 6,000 individuals found a low short-term risk of developing shingles recurrence among those with healthy immune systems. The study's findings suggest that the risk is low regardless of vaccination status.
The International Osteoporosis Foundation reports a significant increase in osteoporosis-related fractures and diagnoses in Latin America, driven by the region's aging population. The projected rise in fragility fractures poses a substantial socio-economic burden on healthcare systems.
A new study published in Population Health Management projects that 53.1 million Americans will have diabetes by 2025, a 64% increase from 2010. The Diabetes 2025 Model can estimate the impact of lifestyle changes and interventions on reducing diabetes burden.
Researchers found unsedated transnasal endoscopy to be a safe and well-tolerated method for screening esophageal disease in a primary care population. The study showed high diagnostic yields, low procedure times, and minimal anxiety, making it an attractive alternative to standard upper endoscopy.
A study using data from over 1 million adults found that a newer risk prediction equation classified more individuals as having chronic kidney disease and accurately predicted death and end-stage renal disease. The CKD-EPI equation outperformed the MDRD Study equation in categorizing risk, especially at higher GFR levels.
Researchers have identified significant differences in how diabetes affects Asian populations, including unique markers for type 1 diabetes diagnosis. The study highlights the need for culturally sensitive care, tailored treatment guidelines, and expanded education programs.
A new study published in The Annals of the American Academy of Political and Social Science found that neighborhood characteristics, such as disadvantage and residential stability, have a significant impact on violent crime rates. Immigrant populations were not linked to higher levels of lethal violence.