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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

Lucky squirrels born with 'silver spoon' effect

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.

Ozone key to link between heat and increased cardiovascular death risk

Research published in Occupational and Environmental Medicine suggests that high temperatures increase the risk of cardiovascular death from heart disease or stroke. Ozone levels are a common link between temperature fluctuations, with higher ozone levels associated with increased cardiovascular mortality.

Girls prefer pink, or at least a redder shade of blue

Researchers discovered a clear preference for pink or reddish hues among women, shifting their color preference towards red and away from blue. The study suggests that this difference may be driven by biological factors, potentially related to evolution and the importance of ripe fruit in hunter-gatherer societies.

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.

Steering clear of icy skies

The National Center for Atmospheric Research has developed an enhanced in-flight icing product to guide aircraft around hazardous icing conditions. This new system rates areas by icing severity and probability of encounters, helping reduce flight delays and fuel costs.

Securing America's power grid

A team of Iowa State University engineers is creating a network of wireless sensors to detect suspicious activity on the nation's power transmission system. The system could quickly locate breakdowns and severe weather damage, allowing power companies to prevent blackouts and respond more effectively.

Tracking Earth's wobbles down to the size of a cell phone

Researchers studied polar motion over three and a half months, finding small loops up to a cell phone size due to weather patterns and oceanic influences. The study demonstrates day-to-day changes in atmospheric pressure affect Earth's rotation for the first time.

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.

2005 was the warmest year in a century

The year 2005 may have been the warmest year in a century, with global temperatures returning to levels seen in 1998. The Earth has warmed by 0.6° C or 1.08° F over the past 30 years and 0.8° C or 1.44° F over the past 100 years.

Darkness more than triples EMS helicopter crash fatality risk

A recent study found that darkness more than triples the risk of fatalities in EMS helicopter crashes, while bad weather increases the risk eight-fold. The study suggests that helicopter EMS programs should prioritize patient safety and transport patients by air only when the benefits clearly outweigh the risks.

New research links consumer behavior to the weather

Researchers Anick Bosmans and Hans Baumgartner found that consumers rely on specific extraneous emotions when evaluating products. They discovered two types of emotions: achievement (cheerfulness/dejection) and protection (quiescence/agitation), which influence product evaluations differently.

Errors in the measurement of global warming corrected

A study by Yale University and NOAA finds that direct sunlight affects weather balloon temperature probes, leading to discrepancies in global warming estimates. This correction reveals an increase of 0.2 degrees Celsius per decade in average global temperature over the last thirty years.

NASA postpones satellite launch

NASA has postponed a scheduled satellite launch at Vandenberg Air Force Base in California. The launch, originally set for May 12, will now take place pending favorable weather conditions. NASA TV coverage is available online and via satellite.

Apple iPhone 17 Pro

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

Science in the clouds

Researchers use a NASA WB-57 research jet to examine icy cirrus clouds, aiming to understand their warming and cooling effects on Earth's climate. The Middle Latitude Cirrus Experiment gathers detailed information to improve computer simulations of future climate change.

Greeting another new year without a leap second

The world has sped up over the last few years, with scientists noting no need for a leap second in five years. Tom O'Brian suggests changes in the Earth's core, ocean tides, and weather may be affecting its rotation. Most scientists expect the Earth to continue slowing down again in the future.

NCAR weather prediction system supports South Pole rescue

The AMPS system uses a tailored computer model, Polar MM5, to provide detailed forecasts for the extreme polar environment. Meteorologists have successfully used AMPS in emergency rescues from Antarctica since 2001, including a recent medical evacuation and ship rescue.

Longest ice cores retrieved from Canadian Yukon

Researchers collected and analyzed a record-breaking ice core in the St. Elias range, providing insights into the North Pacific Decadal Oscillation (PDO). The PDO is a 20-30 year climate cycle affecting weather across North America, with cool and warm phases centered in the North Pacific.

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.

Danger at Sea

Trawler fishermen face unique occupational and weather-related hazards, while economic pressures often hinder safety measures. New technology can improve vessel buoyancy and provide access to reliable weather predictions.

Study explores the effect of temperature on mortality

Researchers analyzed daily weather and mortality data for 11 eastern US cities, finding that mortality risk increased with temperature extremes. Cities in the North were more sensitive to heat, while Southern cities were more vulnerable to cold temperatures.

Satellites shed light on a warmer world

A recent study by NASA researchers analyzed global weather stations and satellite observations to identify minimal local human influence. They found larger warming at urban stations on average, but used rural stations to adjust the records for a more accurate climate change measure.

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.

Warmer periods in Alaskan area not confined to modern times

Researchers analyzed lake sediment samples to find two naturally occurring warm periods in Alaska spanning 2,000 years. The initial period occurred from A.D. 0-300 and was accompanied by drier conditions; the second period corresponded to the Medieval Climatic Anomaly, a global warming event.

Gulf Coast environmental issues -- Tip sheet

Researchers have found detectable levels of tributyltin in Gulf oysters, which can be toxic to crustaceans. Additionally, the Mississippi River has shown improvement in water quality, with a decrease in volatile organic compounds detected since 20 years ago.