Articles tagged with Population Studies
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.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
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.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
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.
The study estimates the cumulative number of child deaths experienced by mothers between 20 and 49 years old in 170 countries. Mothers in select African countries are significantly more likely to have lost a child, with some experiencing up to 30 times more child deaths than those in high-income countries.
The Pew Charitable Trusts has named 9 distinguished researchers as 2021 recipients of the Pew fellowship in marine conservation. The new fellows will undertake projects addressing ocean conservation and management needs globally, from improving shark conservation to studying coastal habitats.
Scientists have discovered a new breeding site for the world's rarest seal species, the Mediterranean monk seal, in northern Cyprus. At least three pups were born at one cave between 2016-19, highlighting the need for urgent conservation efforts.
A staggering number of over 34,000 street cattle roam the Indian city of Raipur, with one animal present for every 54 human residents. This high cattle population poses significant risks for road accidents and exacerbates human-cattle conflicts in urban areas.
The German National Academy of Sciences Leopoldina has published a report on the future of ageing and life course research in Germany, outlining recommendations for advancing research on ageing. The report highlights challenges arising from the COVID-19 pandemic and compares Germany's performance to other countries.
Researchers analyzed Medicare data to characterize financial presentation of Alzheimer's and related dementias before diagnosis. They found a significant association between the two, suggesting financial errors may be an early indicator of dementia.
Research shows that maintaining good cardiovascular health can significantly reduce the risk of developing type 2 diabetes in middle-aged individuals, regardless of their genetic susceptibility. The study found that individuals with ideal CVH had a lower lifetime risk of T2D compared to those with poor or intermediate CVH.
A National Institutes of Health-funded study found that people with substance use disorders are more susceptible to COVID-19 and its complications. Individuals with a recent SUD diagnosis were more likely to develop COVID-19 and experience worse outcomes than those without an SUD.
A large population-based study suggests that people with COVID-19 should be retested 4 or more weeks after symptoms first appear to minimize the risk of onward infection. The study found a relatively high rate of false negative test results in early convalescence, highlighting the need for accurate assessment and follow-up testing.
A new study by Max Planck Institute researchers found that the risk of cognitive impairment and dementia in US men and women increased over two decades. The analysis controlled for learning effects when repeating the same test, revealing a trend reversal compared to previous studies.
A modified BACTRAC protocol allows researchers to study local leukocyte populations during human stroke using flow cytometry. This approach provides a better understanding of acute inflammatory mechanisms and may identify immunotherapeutic targets for stroke treatment.
A new study published in JAMA estimates associations between statewide school closures and changes in daily COVID-19 incidence and mortality. The analysis suggests that timely school closures in March may have contributed to reduced cases and deaths in the following weeks, accounting for other public health interventions.
Researchers successfully trained AI models to recognize individual birds using labeled images and camera traps, achieving over 90% accuracy in wild populations. This breakthrough enables long-term monitoring of populations and protects species from climate change pressures.
Researchers found that expanding access to methadone, buprenorphine and extended-release naltrexone in prisons and jails can significantly reduce overdose deaths by 31.6% in certain circumstances. The study suggests that continuity of care is key to maximizing public health impact.
A recent study published in Environmental Health Perspectives found a strong association between natural gas flaring and an increased risk of preterm birth. Exposure to high levels of flaring was linked to a 50% higher odds of preterm birth compared to no exposure, with women living near flaring sites facing the greatest risks.
Researchers have found that an individual's gut microbiota can predict and treat type 2 diabetes, with altered gut bacteria linked to reduced butyrate production. The study suggests potential for personalized dietary changes or probiotics to prevent or treat the disease.
A large randomized trial has found that endometrial scratch is not beneficial in women having their first cycle of IVF. The study involved over 1000 women under 37 years old and showed no significant difference in live birth rates between those who received endometrial scratch and those who did not.
Researchers analyzed de-identified medical claims covering 6.3 million North Carolinians, revealing significant overall spending of $50 billion per year. Key takeaways include geographic variation, cost variation by payer type, and spending variation by service category.
A new study analyzed data from over 825 trauma centers in the US to identify factors associated with withdrawing life-supporting treatment in patients with severe traumatic brain injury. The findings suggest that demographic and clinical characteristics play a significant role in these decisions.
A recent study found that women diagnosed with ductal carcinoma in situ (DCIS) are at a significantly higher risk of developing invasive breast cancer and dying from breast cancer, even up to 20 years after diagnosis. The risks were more than double those of the general population.
Serological assays detect SARS-CoV-2-specific antibodies in recovered individuals' blood, informing prevalence and immunity questions. Studies must better address the limitations of these tools to inform accurate decisions about deploying the workforce.
A newly identified metabolic signature can evaluate an individual's adherence and metabolic response to the Mediterranean diet, indicating future CVD risk. The signature consists of 67 metabolites that were highly reproducible across different study populations.
Women with postpartum psychiatric disorders are less likely to have more children, with 69% still choosing to have a second child. The study found that nearly half of women with psychiatric problems had a reduced live birth rate due to hospitalization or fear of relapse.
Patients with multiple chronic conditions who completed a patient-centered medical home program had more positive experiences and better health outcomes. Nurse care coordinators played a crucial role in the program's success, helping develop individualized care plans that met patients' unique needs.
A population-based study found that young immigrants and refugees in Ontario, Canada, are at higher risk of experiencing violent assault compared to nonimmigrant youth. The study used linked health and administrative databases to analyze the risk of violent assault among young immigrants and refugees aged 10-24.
The study found associations between parenting stress and lower household income with increased screen exposure among toddlers. Lower household income was also linked to more frequent feeding of children during screen time, contributing to excessive screen use.
A study by Scripps Research Institute found that resting heart rates vary widely between individuals, with norms differing by up to 70 beats per minute. Despite this variability, rest heart rate remains relatively consistent over time, holding potential for early detection of health changes.
A study from Michigan State University and the Max Planck Institute suggests that a partisan Congress is more productive than bipartisan groups. The research used mathematical programming models to analyze coalitions of lawmakers, finding that partisanship often helps bills pass into law.
A new study from University of Pennsylvania sociologist Wendy Roth found that DIY DNA tests do not lead to a greater belief in racial essentialism. However, those who understand more about genetics going in become more skeptical, while those with less understanding believe in essentialism more strongly.
A new study of Asian genes aims to improve disease treatment and care by shedding light on human migration history. The research will create detailed reference databases for Asian populations, helping medical researchers identify genetic differences that can cause diseases.
A Danish study found that low lymphocyte counts are associated with a 60% increase in death from any cause. Participants with lymphopenia were at high risk of dying from all-cause mortality, including age-related risks.
A retrospective study of 432,828 veterans patients found that frail individuals had higher mortality rates after low-stress and moderate-stress surgeries. The 30-day mortality rate among frail patients after a low-stress procedure was 1.55%, significantly higher than the 1% often used to define high-risk surgery.
A review of case-control fecal gut microbiome studies in Parkinson's disease found varying results, but replicated findings include an increase in Verrucomicrobiaceae and Akkermansia. The researchers recommend integrating existing data to address confounders and propose future studies focus on biomarkers for PD diagnosis.
Researchers found slower cell division rates in people between ages 80 and 89 compared to those between 20 and 29, potentially explaining age-related cancer decline. Mice did not exhibit similar age-dependent cell division slowdown.
A study published in Nutrition and Cancer found that consuming sofrito, which includes onions and garlic, was associated with a reduced risk of breast cancer. Women who ate sofrito more than once per day had a 67% decrease in risk compared to those who never ate it.
The study found that men and women experience different comorbidities as having diabetes or prediabetes, including a higher rate of prediabetes among children. Prediabetic women showed a higher prevalence of osteoporosis and depression compared to men.
A population-based study of nearly 452,000 men and women from 10 European countries found that consuming two or more glasses per day of soft drinks was associated with a higher risk of death. The study also linked high sugar-sweetened soft drink consumption to increased mortality from circulatory diseases.
A recent study used genome analysis to explore Scottish and island populations. The research identified distinct genetic clusters within Scotland, with most Scots sharing ancestry from the northeast or southwest regions.
A new study of 38,537 persons suggests that the rare APOE-ε2 variant is associated with prolonged survival, contrasting with the more widely studied APOE-ε4 variant. The findings could lead to novel preventive and treatment options for healthy aging and longevity.
A national study found that the 2016 US presidential election was associated with an increase in preterm births among Latina women, with nearly 1,342 additional male and 995 female preterm births recorded after the election. The study suggests potential links to anti-immigration policies.
A new Northwestern University study found that biracial individuals are stereotyped as attractive and not fitting in, regardless of their specific racial background. The researchers examined six different biracial groups and found no systematic patterns in how people stereotype them.
A study published in the Canadian Medical Association Journal found that quitting alcohol can lead to improved mental well-being and health-related quality of life, particularly among women. The study analyzed data from over 10,000 participants and suggested that moderate drinking may not have the same benefits as previously thought.
Erectile dysfunction affects a significant portion of the global population, with estimates ranging from 3% to 76.5%. Early detection and screening may improve quality of life and prevent cardiovascular disease.
A team of scientists collected non-invasive samples from lynx in Turkey, revealing unexpectedly high genetic diversity and low inbreeding rates. Females stay within their birth territories while males disperse after separation from mothers.
A new model suggests that declining fertility rates in young Neanderthal women could have contributed to the population's decline and eventual extinction. The study used demographic modeling to explore possible scenarios, finding that a decrease in fertility rates of just 2.7 percent could have led to extinction within 10,000 years.
A new Finnish study published in the American Journal of Clinical Nutrition found that dietary cholesterol and moderate egg consumption are not associated with an increased risk of stroke. The study, which followed 1,950 men for 21 years, also found no association between these factors and stroke risk in carriers of the APOE4 phenotype.
A study by Johns Hopkins Medicine and partners found that a simple performance evaluation letter can reduce unnecessary tissue removal in Mohs micrographic surgery for skin cancer. The intervention led to an improvement in surgical behavior, sustained for one year, with 83% of notified physicians reducing their practice.
Access to broadband internet increases fertility rates among higher-educated women by 8.7% compared to 7.2%, with improved work-life balance due to teleworking and part-time working. This effect is less pronounced for lesser-educated women, highlighting a digital divide.
Researchers have reconstructed an 8,000-year genetic history of the Iberian Peninsula using ancient DNA from over 270 individuals. The study reveals complex population structures and unexpected interactions with North Africa and the Pontic-Caspian steppe.
Researchers used next-generation sequencing to identify additional DNA markers in the carob tree, increasing resolution for population genetics studies. This approach shows promise for analyzing species with limited genetic diversity, including those that underwent strong bottlenecks.
A new study finds that the US has the highest rates of drug overdose mortality among high-income countries, with a rate 3.5 times higher on average. The country's overdose death rate has increased rapidly over the past decade, outpacing other nations.
Research from the Singapore Chinese Health Study found that high-quality diets rich in plant-based foods and low in red meat and sugar-sweetened beverages were inversely associated with risk of diabetes. Participants who followed these healthy dietary patterns had a 16-29% reduced risk of developing type 2 diabetes.
A new study shows that crowdsourcing audience judgments about news source quality can identify and marginalize online misinformation. The study found that both Democrats and Republicans distrust hyperpartisan sites, with low trust ratings across the board.
A systematic review and meta-analysis found that caring for preterm babies in single family rooms reduces the incidence of sepsis and improves exclusive breastfeeding rates compared to traditional open ward neonatal units. However, long-term neurodevelopmental outcomes were not significantly different between babies cared for in single...
A pay-it-forward model increased gonorrhea and chlamydia testing among Chinese gay men, with 54% opting in compared to 6%. The program identified previously untested individuals and may be a promising strategy for integrated HIV/STD testing.
A study by Johns Hopkins Medicine found that underrepresented populations are less likely to be eligible for hip or knee replacement surgeries due to inflexible hospital requirements. The researchers aimed to measure how these criteria worsen health disparities and identify disadvantaged groups affected.
A study by Binghamton University researchers found that individuals who prefer casual sex still desire intimacy and affection. The study revealed that partners were more likely to engage in intimate activities in romantic relationships than in casual sex, but the rate of these acts in casual sex was higher than expected.
Researchers found that frequent sauna users had a significantly lower risk of cardiovascular death compared to infrequent users. The study, which followed over 1,600 participants for 15 years, also found that longer sauna sessions were associated with lower mortality rates.
Researchers found that traditional personality traits, like the Big Five, may not be universal across cultures. To improve psychological science, experts recommend considering socioecological theory and diversifying study samples from non-Western populations.
To achieve an 80% HPV vaccination rate by 2026, 14.39 million more US adolescents will need to receive the vaccine, with a disproportionate burden among males, whites, and privately insured teens. The majority of those who haven't been vaccinated yet had opportunities to do so during wellness visits.