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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

Rules for medical research on patients questioned

The Declaration of Helsinki 2000 has been criticized for its inadequate revision process, with only 2 weeks available for comment and critique. Key changes include guidance on monitoring and oversight, but also deficiencies in assessing risks and ambiguous wording that may affect application.

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.

Nutritional screening may predict risk for hospitalization of elderly

A study found that two nutritional screening approaches, one for identifying hospitalization risk and another for detecting warning signs of poor health, were comparable in recognizing elderly at risk. The screenings assessed factors such as weight change, eating habits, medication use, and functional limitations.

Apple iPhone 17 Pro

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

Can a vitamin a day help keep heart disease away?

A new study suggests that increasing folic acid and vitamin B12 intake can lower homocysteine levels in the blood, which are associated with a higher risk of heart disease. The researchers estimate that this intervention could lead to significant cost savings and potentially increase life expectancy.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Young healthy smokers take significantly more days off work than non-smokers

A recent study found that young healthy smokers had substantially more lost work days than their non-smoking colleagues. The risk of lost work days was increased by 60% among men who smoked and by 15% among women smokers, with 14% of lost workdays among men and 3% of those among women directly linked to smoking.

Mayo Clinic study shows suicide rates overstated in people with depression

A Mayo Clinic study challenges the long-held notion that people with depression are at a higher risk of suicide. The research found a stair-step hierarchy of suicide prevalence based on treatment history, with hospitalized patients being at the highest risk level. This new understanding aims to minimize hysteria surrounding depression ...

Sporadic workouts may be hazardous to your health

A study of nearly three million fitness club members found a small but definite increase in risk of exercise-related fatal heart attacks or strokes among sporadic exercisers. Regular exercise is recommended to lower this risk, particularly for those with cardiovascular disease.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

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.

Gambling with the Earth

A physicist claims that scientists have underestimated the devastating potential costs of creating killer strangelets at a new US particle accelerator. The probability of such an event is tiny, but Kent argues that the scale of the destruction should be considered in risk assessments.

Treating TB from beyond Canada's border

A study analyzing Ontario data found that immigration officials' referrals and region of origin are key determinants of tuberculosis risk. Immigrants from Vietnam had the highest incidence rate, emphasizing the importance of targeted prevention efforts to protect both migrant populations and native Canadians.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Risk-management model evaluates groundwater-remediation designs

A new risk-management model developed by researchers at the University of Illinois combines genetic algorithms, fate and transport simulation models, and risk assessment modules to identify potential remediation designs. The model evaluates tradeoffs among cost, risk, and cleanup time under conditions of uncertainty.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

High blood sugar levels increase pancreatic cancer risk

A new study by Northwestern University Medical School researchers found that high blood sugar levels are associated with an increased risk of pancreatic cancer death. The study analyzed data from nearly 40,000 men and women who were screened for cardiovascular disease risk and followed up for an average of 25 years.

Sleep apnea likely to lead to hypertension

Researchers found that even mild to moderate sleep apnea significantly increases the risk of hypertension, with graver levels associated with higher likelihood. The study used data from the Wisconsin Sleep Cohort Study and found a substantial risk of hypertension in those with mild to moderate sleep apnea.

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.

Lifestyle factors fuel high diabetes risk in African-American women

A nine-year study found that African-American women are 2.4 times more likely to develop diabetes due to lifestyle factors such as poor diet and lack of exercise. The study suggests that adopting a healthier lifestyle can help reduce the risk of developing diabetes in this population.

Dementia patients in hospitals longer, increase costs

Studies found dementia patients had significantly longer hospital stays than those without the condition, translating to higher costs. Early detection of dementia is crucial in reducing treatment costs and improving patient outcomes.

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.

Study shows gene may boost smoking-related heart disease

A new study found that smokers carrying the gene GSTT1 face almost twice the risk of heart problems as non-smokers. The study analyzed data from over 14,000 participants and found that individuals without the gene had a 60% greater risk of heart problems if they smoked.

Fears over ICSI largely groundless say fertility experts

A study of over a thousand babies born after ICSI found an increased risk of abnormalities compared to babies born without fertility treatments. However, most abnormalities were linked to conditions associated with multiple or premature births rather than the ICSI technique itself.

Co-existing illnesses, high cholesterol add to suicide risk

Studies found that individuals with major depressive episodes and borderline personality disorder are at greater risk of suicide, while those with high serum cholesterol experience a doubled risk of violent suicide. Comprehensive mental health care is essential to address these co-existing illnesses.

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.

Divorce and separation double risk of suicide in men

Research in the Journal of Epidemiology and Community Health found that divorced and separated men are more than twice as likely to commit suicide as married or partnered men. The study analyzed data from a long-term US research project, which included around 472,000 men and women.

Electron beam X-ray may be useful tool for predicting heart attack risk

A study found that electron beam computed tomography (EBCT) scans are significantly better than traditional risk factors in categorizing heart disease risk. Combining EBCT with risk factors improved the ability to assess an individual's heart disease risk, making it a useful tool for early treatment and prevention.

Toxicologists discover traces of diesel exhaust in the body

Researchers found that office staff, drivers, and unloaders were exposed to similar levels of diesel exhaust due to poor ventilation. This challenges traditional risk assessments based on occupational groups, emphasizing the need for individual testing.

Meta Quest 3 512GB

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

No link found between PCBs and DDE and breast cancer risk in women

A large case-control study of nearly 1,000 Connecticut women found no significant association between PCBs or DDE exposure and breast cancer risk. The research suggests that previous studies on the topic have been inconclusive due to small sample sizes and lack of consideration for modifying factors.

Any benefits associated with alcohol intake are negated by dependence

A recent study found that alcohol dependence eliminates any protective effect of moderate drinking, intensifying risks associated with heavy drinking. Light and moderate drinkers have lower mortality rates than heavier drinkers and abstainers due to lifestyle factors such as exercise and diet.

Study examines risks of circumcision

A new study by doctors at the University of Washington found that there was a complication in one out of every 476 circumcisions. The study suggests that for some parents, the risks may outweigh the benefits of circumcision. However, the vast majority of children will gain no medical benefit or suffer no complications as a result of ci...

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

A new analysis on the risks of NASA'S space station

A new analysis by Futron estimates the risks faced by NASA's space station crew, including serious illness, deaths, and accidents inside the station. The consultancy predicts a 93% probability that a micrometeorite impact will cause disaster if it occurs.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Hormone replacement therapy use limited

A third of menopausal and postmenopausal women are undecided about hormone replacement therapy (HRT), with their risk levels, values, and preferences differing. HRT can reduce osteoporosis and heart disease risks but may increase uterine cancer risk.

Trade, science, risk, precaution: Issues for Seattle

The current WTO approach to risk assessment assumes new technologies are safe until proven otherwise, but this places excessive faith in limited knowledge. In contrast, a precautionary approach requires better testing and monitoring of new products' effects on the environment and people's health.

Celestron NexStar 8SE Computerized Telescope

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

Illness severity, not age, predicts death in older sick people

A recent study published in Annals of Internal Medicine found that illness severity, rather than age, is a key predictor of death among seriously ill patients. The research analyzed data from over 9,000 hospitalized patients and found that those with the sickest conditions were at highest risk of dying within six months.

CIIT publishes formaldehyde cancer risk assessment

A team of scientists at CIIT published an up-to-date risk assessment for cancer from inhaled formaldehyde, integrating the latest mechanistic knowledge and incorporating a two-stage clonal growth model. The new model predicts lower risks for environmental and workplace exposures compared to earlier models.

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.

Study suggests some unruptured aneurysms do not need treatment

Researchers found that treating small, asymptomatic, unruptured cerebral aneurysms may increase health risks and death. The study's complex analysis suggested that in some cases, aneurysm treatment is unnecessary, highlighting the need for personalized care.

Brisk walking reduces risk of heart attack in women

A new study published in the New England Journal of Medicine found that brisk walking can reduce the risk of fatal and non-fatal heart attacks in women by 30-40%. The study analyzed data from the Nurses' Health Study, estimating one-third of coronary events among middle-aged women result from physical inactivity.

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.

Children's environmental health risks: News briefing

A special news briefing will be held on August 23rd to discuss the latest research on children's environmental health risks. The symposium, part of the American Chemical Society meeting, features a panel of experts who will share their findings on the dangers of chemicals in the environment and pet products.

MGH study shows mitral valve prolapse not a stroke risk factor

Researchers from Massachusetts General Hospital found no link between mitral valve prolapse and stroke in young people, contradicting earlier studies. The study's authors used advanced imaging techniques to diagnose mitral valve prolapse accurately, revealing the condition occurs in only about 2% of the population.

Family doctors too pessimistic about knee surgery risk

A University of Toronto study found the chance of needing a second operation following primary knee replacement surgery was between four and eight percent, half the rate expected by family doctors and rheumatologists. Younger patients with active lifestyles and those living in urban centers had slightly higher risks of follow-up surgery.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Magnetic field exposure associated with childhood leukemia

Researchers at the University of Toronto found a strong association between magnetic field exposures in residences and the risk of developing childhood leukemia. Children exposed to higher levels of magnetic fields were two to four times more likely to develop leukemia, with risks highest for those diagnosed before age six.