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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

Kicking the habit: Study suggests that quitting smoking improves mood

A new study published in Nicotine & Tobacco Research suggests that quitting smoking is associated with improved mental health, particularly reduced symptoms of depression. Researchers found that individuals who successfully quit smoking reported lower levels of depressive symptoms compared to those who did not quit or relapsed.

Smoking may thin the brain

A new study finds that smoking is associated with reduced cortical thickness in the left medial orbitofrontal cortex, negatively correlating with cigarette consumption. Heavier smoking was linked to more pronounced thinning of cortical tissue, potentially increasing the risk for addictions and cognitive decline.

Tobacco: Out of sight, out of mind?

Researchers at the University of Nottingham discovered that removing tobacco displays in shops can change young people's attitudes towards smoking. The number of teenagers who recalled tobacco displays dropped from 81% to 22%, and fewer believed smoking was widespread among their peers.

Apple iPhone 17 Pro

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

Passive smokers at increased risk of hearing loss

Non-smokers exposed to tobacco smoke are at risk of hearing loss, with men and older individuals more likely to experience high-frequency hearing loss. Even low levels of passive smoking can continue the progression of hearing loss in former smokers.

Do not abandon new cigarette warning labels

Health Canada's decision to cancel plans for new cigarette warning labels may result in increased smoking rates and a surge in smoking-related illnesses and deaths. Warning labels are an effective communication strategy that deter smokers and non-smokers alike, with international guidelines recommending large pictorial warnings.

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.

School attendance, refusal skills combat smoking risk in youth

A University of Missouri researcher found that school attendance and refusal skills are key factors in combating smoking among youth, particularly Asian Americans. The study indicates a 300% increase in smoking among Asian Americans ages 12-17 compared to those age 18 years and older.

Contraband cigarettes main source of supply for Ontario youth

A new study from CAMH found that contraband cigarettes account for 43% of all cigarettes consumed by Ontario high school daily smokers in grades 9 to 12. Youth are more likely to afford and access these lower-priced, unregulated products due to their affordability and lack of restrictions on purchase.

Real price of each pack of cigarettes is more than €100

Researchers estimate the true cost of smoking to be significantly higher than the retail price, with males facing a premium of €32 compared to the newsstand price. The study suggests that taxes and restrictions can strengthen smokers' self-control mechanisms and generate social benefits.

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.

Experts urge making cigarettes non-addictive a research priority

Reducing nicotine in cigarettes to non-addictive levels could dramatically reduce smoking-related deaths, according to six leading experts. The strategy has the potential to prevent adolescent experimentation with cigarettes and reduce dependence on tobacco among addicted smokers.

Philip Morris Tobacco vs. Uruguay: Health going head-to-head with trade

Uruguay's move to increase tobacco pack health warnings and plain packaging sparks a legal battle with Philip Morris, highlighting the clash between national health control and trade agreements. The case has significant implications for global health governance, international law, and the regulation of tobacco packaging.

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.

Baby's first full nappy can reveal mother's smoking

Researchers measured tobacco smoke metabolites in meconium samples from 337 babies and found a strong correlation with reported smoke exposure. The study suggests that prenatal tobacco smoke exposure is linked to adverse infant health outcomes, highlighting the importance of tracking environmental exposures during pregnancy.

New test allows individualized profiles of cigarette smoking

A new test allows for more accurate estimation of smokers' mouth-level exposure to cigarette smoke, which may aid in developing custom-tailored quitting strategies. The method uses a surrogate compound found in tobacco filters to gauge exposure to the thousands of chemicals present in cigarette smoke.

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.

Berkeley study shows ozone and nicotine a bad combination for asthma

A new study by Berkeley Lab researchers reveals that ozone can react with nicotine in secondhand smoke to form ultrafine particles, a potential threat to asthma sufferers. These particles become major components of thirdhand smoke and can carry and deposit harmful organic chemicals deep into the lower respiratory tract.

A community approach to kicking the habit

Researchers are harnessing local community champions to challenge smoking norms and encourage quitting in Aspley ward, where 53% of residents smoke. The two-year project will profile positive messages to smokers and enlist the help of community champions to raise awareness.

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.

CMAJ calls for resignation of IDRC chair Barbara McDougall

The Canadian Medical Association Journal editorial calls for IDRC Chair Barbara McDougall's resignation due to her ties to the tobacco industry. This is seen as a conflict of interest, undermining the institution's credibility in international development.

Puffing in public housing poses serious health risks to tenants

Research shows that public housing residents are exposed to toxins from tobacco smoke, even if they don't smoke themselves. The authors argue that a ban on smoking in public housing units is necessary to protect the health of all residents, particularly children, who are more vulnerable to the effects of second-hand smoke.

New evidence that smokeless tobacco damages DNA and key enzymes

Smokeless tobacco affects enzyme function and genetic material in liver, kidney, and lungs, altering hormone production and potentially toxic substance breakdown. The study's findings highlight the need for greater awareness of smokeless tobacco's risks, particularly among youth and vulnerable populations.

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.

UCSF analyses detail tobacco industry influence on health policy

Two new UCSF studies detail the wide reach of the tobacco industry and its influence on young people, military veterans, and national healthcare reform. The analyses reveal industry 'youth smoking prevention' tactics and efforts to defeat healthcare reform under President Clinton.

A compound in smokers' breath

Researchers have found a compound in smokers' breath that can detect recent tobacco consumption with high accuracy. The compound, 2,5-dimethylfuran, is only present in the breath of smokers within the last three days.

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.

African-American infants at increased risk from tobacco smoke exposure

New research reveals low-level prenatal tobacco smoke exposure is associated with deficits in motor and cognitive development for African American children. The study highlights a racial disparity in developmental problems, emphasizing the need for expectant mothers to be particularly careful during pregnancy.

Adolescent smokers don't recognize early signs of nicotine dependence

A new study published in Pediatrics found that adolescent smokers who do not smoke daily still recognize early symptoms of nicotine dependence, such as irritability and desire to smoke. The study, which surveyed over 370 adolescent smokers, shows a correlation between nondaily tobacco use and increased smoking frequency.

Children living in apartments with nonsmoking adults still exposed

A study from the University of Rochester Medical Center found that children living in apartments are still exposed to tobacco smoke, even when they don't live with smokers. This is due to seepage through walls and shared ventilation, which can carry nicotine from neighboring units.

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.

Helping smokers with mental illness

Researchers at University of Nottingham launch £1.2 million project to improve 'quit smoking' services for smokers with severe mental illness. The program aims to address the historical culture of tolerance of smoking in mental health settings, where tobacco use is deeply embedded and often condoned by clinicians and staff.

Does foreign policy help or hinder global health?

The intersection of foreign policy and global health interests can prioritize certain health concerns over others. Global health diplomacy is being used as a means to further foreign policy objectives, such as improving security or projecting power.

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.

Second-hand smoke toxicity in cars: Myth into fact

A study published in Canadian Medical Association Journal found no scientific evidence to support the claim that smoking in cars is 23 times more toxic than in other indoor environments. The 23 times estimate originated from a media report and has been widely cited, but its lack of basis in fact poses credibility issues.

Work pressures lower nicotine dependence

A study published in Tobacco Induced Diseases found that work pressures can actually lower a smoker's nicotine dependence. Employees who experience stress at work are likely to smoke less than they otherwise would, suggesting that heavy workload may drive employees to smoke only in their spare time.

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.

Young Britons see significantly more smoking in movies than US peers

Research finds that young Britons are exposed to more smoking in movies due to the UK's film classification system. The study, published in Tobacco Control, reveals that UK adolescents see nearly 28% more tobacco impressions in '15' or '12A' rated films compared to their US peers.

Secondhand smoke raises risk of hardened arteries among 13-year-olds

A recent study published in the American Heart Association rapid access journal report found that frequent exposure to secondhand smoke among 13-year-olds is associated with increased blood vessel wall thickness and functioning problems. This increases the risk of future blood vessel hardening and other heart disease factors.

Packages of care for ADHD in low- and middle-income countries

The article recommends a package of care for ADHD in low- and middle-income countries, including screening high-risk groups, psycho-educational interventions with caregivers, and behavioral interventions. The authors propose this approach to improve recognition and management of ADHD conditions.

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 reveals a need to evaluate and regulate 'electronic cigarettes'

A study published in Tobacco Control found that electronic cigarettes fail to deliver nicotine, with participants experiencing no significant increase in nicotine levels or heart rate. The research emphasizes the need for regulation and labeling of these products to protect consumers' welfare and rights.

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.

Study reveals new details on the dangers of third-hand smoke

A recent study has found that nicotine in third-hand smoke reacts with nitrous acid to produce dangerous carcinogens, posing a significant health risk to infants and toddlers. The researchers also discovered that even opening windows or using fans does not eliminate the hazard of third-hand smoke.

Smokers at risk from their own 'second-hand' smoke

Research found that smokers' health is compromised by breathing environmental tobacco smoke, with second-hand smoke equivalent to an additional 2.6 cigarettes per day. This highlights the need for both active and passive smoking contributions to be considered when studying smoker health.

Global tobacco report outlines 21 challenges for 21st century

The report highlights the need to increase support for Framework Convention on Tobacco Control, raise tobacco taxes, and provide comprehensive treatment for tobacco dependence. Decreasing tobacco advertising, promoting health warnings, and regulating products are also key recommendations to reduce tobacco use.

Celestron NexStar 8SE Computerized Telescope

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

Changing flowering times protect tobacco plants against insect herbivory

Scientists discovered that tobacco plants alter their flower opening time in response to insect herbivory, reducing scent emission and attracting hummingbirds as an alternative pollinator. This adaptation helps protect the plant from harm while still allowing for fertilization and reproduction.

Tobacco smoke causes lung inflammation, promotes lung cancer growth

Scientists found that repeated exposure to tobacco smoke made lung cancer worse by causing inflammation in the lungs. The study provided definitive evidence for the role of lung inflammation in promoting lung cancer growth and suggested using anti-inflammatory agents to prevent or slow lung cancer progression.

The first map of colon cancer in Spain is published

The study found that mortality due to colon cancer increased between 1951 and 2000, but stabilized in men and decreased in women between 2000 and 2006. The main causes of these disparities include tobacco consumption and red meat intake.

Meta Quest 3 512GB

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

Engineered tobacco plants have more potential as a biofuel

Researchers at Thomas Jefferson University have successfully engineered tobacco plants to produce more oil in their leaves, which can be used as a sustainable biofuel. The modified plants yielded up to 20-fold more oil than normal tobacco plant leaves, paving the way for a new energy source.

New research backs FDA ban on flavored cigarettes

New study finds that thrill-seeking teenagers are more susceptible to fruit-flavored cigarettes, which can lead to lifelong addiction. The FDA's ban on flavored cigarettes aims to reduce smoking among youth.

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.