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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

The search for obesity drugs targets hunger's complex chemistry

Scientists are shifting focus to combination therapies targeting multiple appetite control system components, driven by understanding of protein sensors and neurotransmitters. This approach aims to better regulate body's appetite, potentially leading to more effective obesity treatments.

Apple iPhone 17 Pro

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

Are military physicians ready to treat transgender patients?

A survey of military physicians found most lacked formal training on transgender care, had not treated patients with gender dysphoria, and were insufficiently trained to prescribe cross-hormone therapy. The study highlights the need for greater medical training in transgender care among military physicians.

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.

Hormone replacement therapy associated with lower mortality

A recent study suggests that hormone replacement therapy may help improve heart health and overall survival in women, with lower levels of atherosclerosis and plaque buildup detected. The research found significant age-related benefits from the therapy, with women using it being 30% less likely to die than those not on hormone therapy.

Cows may offer clues to improving fertility in women

Researchers at Michigan State University are studying the effect of hormones on ovulation and reproduction in cows to develop better fertility treatments for women. The study aims to improve fertility response rates by understanding how increased doses of fertility hormone impact ovarian function and egg quality.

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.

Testosterone treatments may increase cardiac risks

A new study published in JAMA suggests that testosterone treatments may increase the risk of heart disease in older men. The study found a significant increase in arterial plaque among men aged 65 and older who received testosterone replacement therapy for a year, with a 20% rise in total coronary and noncalcified plaque volumes.

Benefits of testosterone therapy in older men are mixed

A new study published in JAMA and J AMA Internal Medicine found that testosterone therapy improved bone density and strength, as well as reduced anemia in older men with low testosterone levels. However, the therapy had no impact on cognitive function and may worsen plaque in coronary arteries.

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.

Under and misuse of hormone therapy decreasing, but still high

A nationwide registry of over 1 million patients with hormone-sensitive breast cancer reveals that 1 in 6 women missed post-surgical adjuvant endocrine therapy, which can lower cancer recurrence risk by 29%. Despite improvements, 18% of eligible women remained untreated between 2004 and 2013

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.

Challenges of breeding 'VIPeas'

Crossing chickpeas is challenging due to self-pollination and inbreeding. Researchers found that emasculation and hormone treatment do not increase cross-pollination rates, instead lowering success rates. Studying environmental factors like light, temperature, and humidity may improve breeding efficiency.

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.

When should doctors treat short children and teens with growth hormone?

A group of medical experts has issued new clinical guidelines for managing children and adolescents with growth failure, recommending hormonal treatments for certain conditions but cautioning against routine use in cases of unknown cause. The guidelines aim to balance medical needs with potential risks and long-term consequences.

Landmark study defines normal ranges for testosterone levels

A large study of over 9,000 men has established harmonized reference ranges for total testosterone, enabling clinicians to diagnose hypogonadism correctly. The normal range for testosterone in non-obese European and American men between 19-39 years is 264-916 ng/dL.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Endocrinologists want training in transgender care

A new study found that most endocrinologists have never received formal training on caring for transgender individuals, despite growing demand for such services. The Endocrine Society is now developing guidelines to address the need for education and training in this area.

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.

Rare obesity syndrome therapeutic target identified

A deficiency of prohormone covertase (PC1) in the brain is linked to most neuro-hormonal abnormalities in Prader-Willi syndrome. The discovery provides insight into molecular mechanisms underlying the syndrome, highlighting a novel target for drug therapy.

Breast cancer patients could benefit from controversial hormone

A recent study published in Nature Reviews Cancer suggests that progesterone could be a game-changer in treating recurring breast cancers. The hormone, when used in combination with current treatments, may reprogram estrogen action in the breast to improve cancer outcomes. Two new clinical trials are underway to test this approach.

Increased risk of blood clots soon after starting testosterone treatment

Starting testosterone treatment increases risk of serious blood clots, with the risk peaking within six months and declining gradually thereafter. Although the risks are temporary and low in absolute terms, researchers warn that investigating timing and duration of use may have masked conflicting findings.

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.

Menopausal hormone therapy improves bone health

A new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism reveals that menopausal hormone therapy (MHT) improves both bone mass and structure, with benefits persisting for at least two years after treatment ends.

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.

To prescribe or not to prescribe?

Research suggests doctors are more likely to prescribe growth hormones for slow-growing children if the child's family requests it or if they believe in its intangible benefits. This raises concerns about access, overuse, and cost of life-enhancing products, which can be expensive and create financial burdens.

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.

New evidence that hormone levels measured in hair can affect IVF success

A new study found that elevated cortisol levels measured in hair can predict IVF success rates, with women having almost a third less chance of conceiving. The technique enables doctors to measure cumulative hormonal function over 3-6 months, providing a more reliable measure than short-term methods.

Celestron NexStar 8SE Computerized Telescope

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

Culprit found in breast cancer resistance to tamoxifen

A study by University of Minnesota researchers found that elevated levels of APOBEC3B in breast cancer cells lead to reduced response to tamoxifen therapy. Depletion of the protein accelerates development of resistance, while increased production speeds it up.

Transgender women who begin hormone therapy more likely to quit smoking

A new study found that transgender women on hormone therapy have a higher rate of smoking cessation compared to the general population, with 64% of current smokers quitting after starting treatment. Researchers believe this may be due to the life-changing event of hormone therapy and the associated health risks.

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.

New study shows breast tumors evolve in response to hormone therapy

A new study analyzes breast tumors before and after hormone-reduction therapy, revealing the genetic complexity of these tumors and their varying responses to estrogen-deprivation treatments. The findings suggest that analyzing a single sample is insufficient for understanding how a patient should be treated.

Fluke 87V Industrial Digital Multimeter

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

Male hormone reverses cell aging in clinical trial

Researchers found that treating patients with a male hormone increased telomere length and improved hemoglobin mass. The study suggests a possible approach to combat diseases caused by telomerase deficiency.

Testosterone therapy improves sexual interest, function in older men

A large placebo-controlled study found that testosterone therapy significantly improved sexual interest and function in older men with low libido and low testosterone levels. The study, the largest of its kind, showed consistent improvement in most types of sexual activity among those who received testosterone therapy.

Progesterone in botanicals could aid women's health

A five-year federal grant will discover progesterone-like compounds from commonly consumed botanicals and their role in women's health. The research aims to improve safety and inform decisions on self-medicating with botanicals.

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.