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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

Getting high in senior year: NYU study examines reasons for smoking pot

A new NYU study reveals that using marijuana to alleviate boredom increases the risk of reporting powder cocaine or hallucinogen use, while 'experimentation' is associated with lower risk. Infrequent use does not increase risk, and most teens who use marijuana do not progress to using other drugs.

Apple iPhone 17 Pro

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

University of Iowa studies impact of marijuana on driving

A new study conducted at the University of Iowa's National Advanced Driving Simulator found that drivers who use both alcohol and marijuana together weaved more on a virtual roadway than those using either substance independently. The study, which analyzed the effects of inhaled cannabis on driving performance, also found no double eff...

Medical marijuana 'edibles' mostly mislabeled, study shows

A study found that most edible cannabis products sold in dispensaries carried labels with inaccurate THC levels, posing a risk to patients. The researchers called for better regulation and oversight of marijuana edibles to prevent overdosing and ensure accurate labeling.

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.

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.

Cannabis use can be prevented, reduced or delayed

Researchers at the University of Montreal found that targeted interventions can prevent, reduce, or delay cannabis use amongst high-risk youth. The study showed a significant reduction in cannabis use rates among sensation-seekers, with a 75% decrease six months post-intervention.

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.

'Extreme' exposure to secondhand cannabis smoke causes mild intoxication

Researchers found that nonsmokers who inhaled secondhand cannabis smoke under extreme conditions experienced mild effects, including memory and coordination problems. The study provides significant insights into the impact of secondhand cannabis smoke on individuals and has implications for workplace drug testing.

Keeping legalized marijuana out of hands of kids

Researchers suggest four strategies to prevent marijuana use among minors: increasing prices through tax policy, regulating retail availability, preventing accidental ingestion by children, and restricting marketing. These measures can help minimize youth access to marijuana.

Celestron NexStar 8SE Computerized Telescope

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

NYU study identifies teens at risk for hashish use

A new NYU study examines prevalence and correlates of hashish use among US high school seniors, finding that males are more likely to use the potent form. The study also found that frequency of marijuana use increases risk for recent hashish use, with students who feel 'hooked' on marijuana nearly doubling their odds

Common cholesterol drug stimulates the same receptors as marijuana

Research in The FASEB Journal suggests that fenofibrate may become a viable treatment option for relieving pain, stimulating appetite, reducing nausea, and preventing depression. The study found that fenofibrate activates cannabinoid receptors, which could lead to the development of new drugs targeting these receptors.

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.

Legalizing marijuana and the new science of weed (video)

Scientists have found that marijuana potency has tripled in some strains since legalization, with some samples containing up to 30% THC. However, many products lack cannabidiol, a compound with potential medical benefits, and contain contaminants such as fungi and solvents.

Suspension leads to more pot use among teens, study finds

A new study found that suspending students for marijuana use can lead to more pot use among their classmates, but counseling is a more effective means of combating marijuana use. Schools with suspension policies had a 1.6 times higher rate of marijuana use among students compared to those without such policies.

Study shows teens and adults hazy on Washington marijuana law

A new study found that only 57% of Washington parents knew the legal age for recreational marijuana use, while 49% knew how much marijuana can be legally possessed. The study also revealed that parents' conversations about marijuana laws with their children were infrequent.

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.

An alternative to medical marijuana for pain?

Researchers discover cannabinoid CB2 agonist AM1710 suppresses chemotherapy-induced pain in mice without tolerance or withdrawal symptoms. The therapeutic effect of AM1710 is preserved even after repeated dosing and blocking CB1 receptors produces no signs of withdrawal.

NYU study identifies teens at-risk for synthetic marijuana use

A new NYU study found that males and black students are more likely to use synthetic marijuana, while frequent nightlife and other substance use increase the risk. The study also suggests that most non-marijuana users have never tried synthetic marijuana.

Women twice as likely to see pot as risky

A 10-year decline in perception of marijuana risk is reported in a study by Columbia University's Mailman School of Public Health. Women over 50, non-white individuals, and those with lower incomes are more likely to perceive cannabis use as risky.

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.

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.

Pro-marijuana 'tweets' are sky-high on Twitter

Researchers analyzed over 7.6 million tweets about marijuana, finding that 77% were pro-pot, while only 5% were anti-marijuana. Pro-pot tweets often encouraged use and made claims about health benefits, reaching a large audience of young people at risk for substance abuse.

Half of young victims of fatal crashes in 9 US states used alcohol or marijuana

A recent study by Columbia University's Mailman School of Public Health found that half of young victims of fatal crashes in nine US states were under the influence of either alcohol or marijuana, or both. The study analyzed data from 1999 to 2011 and found that 50.3% of deceased tested positive for alcohol, marijuana, or both.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Up in smoke or bottoms up: How policy could affect substance abuse

A study of 7,191 fatal accidents involving young drivers in the US found that half were under the influence of alcohol or marijuana. The researchers found no significant substitution effect between alcohol and marijuana use, suggesting increased availability may lead to concurrent use.

Natural 'high' could avoid chronic marijuana use

A Vanderbilt University study suggests replenishing 2-AG levels in the brain could alleviate mood and anxiety disorders. By restoring normal levels of 2-AG, researchers may have found a potential therapeutic strategy for treating depression and anxiety.

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 marijuana's long-term effects on the brain

Chronic marijuana users have smaller brain volume in the orbitofrontal cortex but increased brain connectivity. The study found that earlier onset of regular marijuana use induces greater structural and functional connectivity.

What 20 years of research on cannabis use has taught us

A major new review of cannabis research reveals adverse effects on mental and physical health, including increased risk of addiction, psychosis, and respiratory problems. Chronic cannabis use is linked to lower educational attainment and intellectual impairment, while adolescent use is associated with a doubling of schizophrenia risk.

Fluke 87V Industrial Digital Multimeter

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

Adolescent exposure to thc may cause immune systems to go up in smoke

New research suggests that early exposure to THC may cause long-term damage to the immune system, leading to increased risk of autoimmune diseases and chronic inflammatory conditions. Studies involving adolescent mice found that THC treatment resulted in severe alterations of immune responses in adulthood.

Marijuana users who feel low get high

A study of frequent marijuana users found that negative emotions increased in the days leading up to use and didn't improve with cannabis. The research suggests that this can create a vicious cycle where people continue to use the drug despite feeling worse afterward.

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.

Estrogen increases cannabis sensitivity

A new study from Washington State University found that estrogen levels significantly increase tolerance to THC in female rats, making them more vulnerable to negative side effects. The research suggests that women are at higher risk of experiencing anxiety, paranoia, and addiction when using cannabis.

NYU study compares consequences of teen alcohol and marijuana use

A new NYU study found that teen alcohol consumption is linked to unsafe driving and compromised relationships with peers, while marijuana consumption compromises relationships with authority figures. Marijuana use also leads to lower school or job performance and increased regret.

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.

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.

Regular marijuana use bad for teens' brains

Frequent marijuana use can lead to poor attention, memory, and decreased IQ in teenagers and young adults. Brain imaging studies have shown significant changes in brain structure among adolescents who increased their marijuana use.

Marijuana dependence alters the brain's response to drug paraphernalia

A study published in Drug and Alcohol Dependence found that marijuana-dependent individuals' brains respond differently to drug-related cues compared to non-dependent users. The research used fMRI scans to reveal altered brain activity patterns, which may inform tailored addiction treatment strategies.

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.