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Life Sciences

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.

447,757 articles | 2542 topics

Health and Medicine

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.

431,843 articles | 751 topics

Social Sciences

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.

260,756 articles | 745 topics

Physical Sciences

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.

257,913 articles | 1552 topics

Applied Sciences and Engineering

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.

225,386 articles | 998 topics

Scientific Community

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.

193,043 articles | 157 topics

Space Sciences

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.

29,662 articles | 175 topics

Research Methods

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.

21,889 articles | 139 topics

Mathematics

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.

3,023 articles | 113 topics

JCI online early table of contents: July 25, 2011

A study by Lukas Van Oudenhove and colleagues found that a fat solution to the stomach attenuates behavioral and nerve cell responses to sad emotion in humans. This discovery has implications for treating disorders such as obesity, eating disorders, and depression. Additionally, two independent research groups have generated new data o...

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Vitamin D can help elderly women survive

A systematic review found that vitamin D3 supplementation increased survival in elderly women, particularly those at risk of falls and fractures. The study analyzed 50 randomized trials involving over 94,000 participants and suggested a reduced risk of mortality by approximately 6% with long-term treatment.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Helping the aged during natural disasters

The elderly are more vulnerable to negative impacts of floods and natural disasters due to age-related disabilities and social circumstances. Research highlights the importance of considering age-related needs in emergency preparedness planning to ensure better outcomes.

Fracture prediction methods may be useful for patients with diabetes

Researchers found that established fracture prediction methods were associated with hip and nonspine fracture risk in older adults with type 2 diabetes mellitus. Femoral neck BMD T score and FRAX score were linked to fracture risk, but patients with DM had a higher risk of fracture at the same scores as those without DM.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

More money, better health?

A new study from George Mason University found that greater medical spending among Medicare participants leads to improved overall health and survival rates. The research team analyzed data from over 17,000 beneficiaries and discovered a positive correlation between increased medical care spending and better health outcomes.

Study shows elderly drivers support competency tests

A study found that 71% of elderly drivers supported mandatory retesting based on age, while 68% believed family members should decide if a license is revoked. The research aims to develop a screening test to identify higher-risk drivers and establish advance directives for driving decisions.

CPAP decreases cardiovascular mortality in elderly patients

A large-scale study found that CPAP treatment decreases cardiovascular mortality in elderly patients with obstructive sleep apnea (OSA). The study, which followed 939 patients for six years, also found that untreated severe OSA increases cardiovascular risk in this age group.

As time goes by, it gets tougher to 'just remember this'

Researchers at Johns Hopkins University found that aging brains have difficulty processing new information due to reduced input from the rest of the brain. This leads to confusion and a greater reliance on old memories, making it harder to recall recent events.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Families need to know more about feeding tubes for elderly dementia patients

A new survey finds that discussions surrounding feeding tube insertion are often inadequate, with 13.7% of family members stating medical providers inserted the tube without discussion first. Despite research questioning the value of feeding tubes, 32.9% of people in the survey reported improved quality of life for their loved ones.

Fitness and frailty in adults linked to health outcomes

A study published in the Canadian Medical Association Journal found that frailty increases exponentially with age throughout adulthood, not just after 65. Relatively fit individuals had lower mortality rates and used fewer healthcare services than those who were frail.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

How the bilingual brain copes with aging

Researchers found that older bilingual adults use context more to process language as working memory capacity declines. Bilingualism is associated with a cognitive advantage, and this study sheds light on how bilingual brains adapt to aging.

Effective pain management crucial to older adults' well-being

Improved pain management can significantly reduce disability in older adults, associated with increased sleep difficulty and numerous problems. Strategies include physical activity, pain protocol interventions, and medication use to optimize patient well-being.

Regular retail therapy prolongs life

Research found that frequent shopping among the elderly increases survival rates, with daily shoppers 27% less likely to die compared to those who shopped less frequently. The study suggests that shopping may improve health by ensuring a good supply of food and promoting social connections.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

A better understanding of the aging immune system

The GERONTOSHIELD project aims to understand the aging immune system and develop personalized therapies for the elderly. Researchers investigate how immune responses in young and old mice differ from each other and identify risk markers predicting increased susceptibility for infectious diseases.

Gaps in health care limit options for older adults, MU expert says

A University of Missouri nursing expert emphasizes the complexity of hospital discharge processes for older adults, citing stress, fear, and lack of understanding as common complications. Effective care requires open communication among families, patients, and healthcare providers.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Gardening linked to increased vegetable consumption in older adults

A new study suggests that gardening programs can boost vegetable intake among older adults, with no correlation between time spent gardening and consumption. The research found that gardeners were more likely to consume vegetables than non-gardeners, regardless of age or ability.

Want more zest for life? Consider gardening!

Older adults who garden report enhanced optimism, increased physical activity, and higher energy levels compared to nongardeners. Gardening also promotes healthier lifestyles through increased consumption of fruit and vegetables.

Tai chi beats back depression in the elderly, study shows

Researchers found that combining tai chi with standard treatment for depressed elderly adults led to greater improvement in depression levels and quality of life. Participants who took escitalopram and participated in tai chi showed higher remission rates than those receiving health education.

Study: Multi-tasking on the street not a good idea for older people

Researchers found older adults take significantly longer to cross streets while talking on mobile phones, with heightened cautiousness offering no safety benefits. The study also revealed a significant impairment in street-crossing tasks for older adults engaged in dual activities.

Why are the elderly so vulnerable to pneunomia?

A study published in The Journal of Immunology reveals that the elderly are more susceptible to pneumonia and bacterial infections due to a decline in immune system cells. Researchers have found that macrophages and B cells, which fight bacteria, appear effective but are fewer in number, making them less effective. Developing targeted ...

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Total knee replacement patients functioning well after 20 years

A recent study found that total knee replacement patients retain high levels of functionality 20 years after surgery, defying common concerns about long-term decline. The study revealed that 95% of patients could walk at least five blocks and nearly half had unlimited walking abilities.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Emergency detection systems for senior citizens

A new system developed by Fraunhofer-Gesellschaft aims to provide constant companionship to elderly people living alone, identifying potential fall situations through multisensory nodes and adaptive software. The system learns an individual's daily activities and alerts trusted individuals in case of emergency.

Adapting technology to elderly people

The myVitali system enables healthcare professionals to monitor and communicate with larger numbers of people, maintaining independence and quality of life for seniors. It also reduces doctor visits and provides personalized health records.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Older adults often excluded from clinical trials

A recent study found that more than half of clinical trials exclude people based on their age or age-related conditions. This exclusion leaves healthcare providers in the dark when determining which treatment will best serve their patients.

Moderate aerobic exercise in older adults shown to improve memory

A new study led by the University of Illinois at Urbana-Champaign found that one year of moderate physical exercise can increase the size of the brain's hippocampus in older adults. The increased hippocampal size is associated with improved spatial memory function. The researchers also discovered a correlation between increased hippoca...

Weight loss plus walking essential for older, obese adults

A five-year study of 288 participants found that a combination of physical activity and weight loss improved mobility by 5-20% in older, obese adults. This counteracts the common belief that weight loss is unhealthy for older adults. Community-based programs can effectively provide seniors with poor mobility

Older driver screening program expands to other counties, law enforcement

The University of California, San Diego's Trauma Epidemiology and Injury Prevention Research Center is expanding its older driver screening program to other counties, focusing on interventions for at-risk drivers. The program aims to identify and address medical conditions that may interfere with safe driving.

Youth adapt faster than seniors to unexpected events

A Concordia University study reveals that younger adults are quicker to respond when faced with an unexpected event, whereas older adults take longer to adapt. This finding has implications for educators and older adults in situations where performance is crucial.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Driving simulators help older adults improve their road skills

A new study suggests that driving simulators can be an effective way to improve the driving skills of older adults. The researchers found that coaching and feedback through a driving simulator improved driving abilities in older drivers. This method may help keep older drivers on the road longer while maintaining safety.

Anti-epileptic drugs associated with increased risk of fracture in older adults

Studies found that most anti-epileptic drugs increase the risk of non-traumatic fractures in individuals aged 50 and older. Anti-epileptic drugs are associated with greater bone density loss, particularly in post-menopausal women. The study identified phenytoin and carbamazepine as the most significant contributors to this increased risk.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Longevity unlikely to have aided early modern humans

A new study by Erik Trinkaus suggests that early modern humans and Neanderthals had similar adult mortality patterns, with no evidence of a longevity advantage for modern humans. This challenges the theory that Neanderthal shorter life expectancy contributed to their demise.

How to look younger without plastic surgery

Psychologists at Jena University discovered that adapting to faces of older people can make a person appear younger. The study found that viewing multiple faces of the same age group can influence age perception and lead to estimates that are systematically wrong.

Walking speed associated with survival in older adults

A study of 9 studies found that higher walking speeds were linked to increased survival time in older adults. Gait speed was most informative after age 75, with faster speeds corresponding to longer expected remaining life.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Vitamins C and E linked to metabolic syndrome in low-income Ecuadorians

A study by researchers at Tufts University found a high prevalence of metabolic syndrome in low-income urban community in Ecuador, with vitamins C and E showing a significant relationship. Limited consumption of nutrient-dense foods such as chicken, vegetables, and legumes contributes to the risk.

Eating healthier means living longer

A recent study found that diets rich in healthy foods, such as fruits, whole grains, and low-fat dairy products, may reduce mortality risk in older adults. The 'Healthy foods' cluster had a significantly lower risk of mortality compared to clusters with high consumption of unhealthy foods.

Embargoed news from Annals of Internal Medicine

Researchers found that Echinacea has no significant effect on reducing the duration or severity of cold symptoms. In contrast, a diet rich in whole-fat dairy products may help lower the risk of developing diabetes due to increased levels of trans-palmitoleate. Exercise and Vitamin D supplements are also recommended as effective interve...

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Dealing with an epidemic of loneliness

A UK doctor shares a poignant story of an elderly patient struggling with loneliness, highlighting the need for companionship and support. The Lancet argues that tackling loneliness requires a multi-faceted approach, including social clubs, workshops, and simply spending time with neighbors.

18.3 million baby boomers could benefit from the Affordable Care Act

The Affordable Care Act offers comprehensive health benefits to 8.6 million uninsured adults ages 50-64 and 9.7 million underinsured adults. Baby boomers will gain improved coverage through essential benefit standards, limits on out-of-pocket spending, and elimination of lifetime benefit limits.

A few steps could lead to big gains for hospitalized seniors

A new study by the University of Texas Medical Branch at Galveston found that hospitalized elderly patients who take even short walks around their unit tend to leave the hospital sooner than those who are less mobile. This correlation was observed after adjusting for varying severities of illness, suggesting a potential 'standard of ca...

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.