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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

Celestron NexStar 8SE Computerized Telescope

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

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.

Moving the target for osteoporosis treatment

A major axis within bone cells regulates bone production and loss, providing a potential new target for treating debilitating osteoporosis. Local regulation of bone mass is now believed to occur primarily in the bone, not in the brain as previously thought.

Black cohosh may reduce hot flashes by targeting brain's thermostat

A new study suggests that black cohosh can effectively reduce hot flashes and other menopausal symptoms by binding to serotonin receptors in the brain. The herb is found to have no estrogenic effects, making it a potentially safer alternative to traditional hormone replacement therapies.

Study examines limited-field radiation for early breast cancer

A study examined whether limited-field radiation therapy could be an effective alternative to whole-breast radiation therapy for patients at low risk of recurrence. The results showed no significant difference in local recurrence rates or overall survival between the two groups after five years of follow-up.

Apple iPhone 17 Pro

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

Anger, anxiety may boost heart risk in postmenopausal women

A new study suggests that psychological factors like anger and anxiety may boost heart risk in postmenopausal women. Hormone replacement therapy provides some artery protection for women with high levels of anger and Type A behavior, but not for those with anxiety or depression.

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.

U-M study examines age vs. menopause effects of bone health

Researchers at U-M examined the effects of aging and menopause on bone health and found that natural estrogen withdrawal after menopause causes more significant bone loss. The study suggests that hormone replacement therapy may not be necessary for all middle-aged women with regular menstrual cycles.

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.

Common hormone therapy doubles dementia risk

A recent study found that combined hormone therapy increases the risk of dementia in women over 65, doubling the risk compared to placebo groups. The research suggests that hormone replacement therapy may be more harmful than helpful for preventing age-associated memory loss.

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.

Combination hormone replacement therapy doubles dementia risk

A recent study by Wake Forest University Baptist Medical Center found that combination hormone therapy increases the risk of probable dementia in women aged 65 and older, with approximately 23 additional cases per year. The study's results highlight the importance of considering alternative approaches to preventing cognitive decline.

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.

DHEA supplement shows no effect on Alzheimer's disease

Researchers found that DHEA did not significantly improve cognitive performance or ratings of disease severity in a randomized, double-blind trial. The study's small size and high drop-out rate may limit the findings, with larger studies needed to confirm the results.

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.

The timing of hormone replacement therapy could be key to success

Researchers believe initiating hormone replacement therapy in younger women without advanced vessel disease can prevent heart vessel disease. However, delaying HRT may lead to ineffective or potentially harmful effects on older women with more advanced vessel disease.

Combination hormone therapy raises women's stroke risk

A recent study found that combination hormone therapy increased the risk of stroke in postmenopausal women, including those with and without high blood pressure. The therapy was found to be ineffective for primary prevention of cardiovascular disease and heart attack.

The war against anti-aging medicine

The biogerontological community is at war with anti-aging medicine, threatening the status and funding of their own research. Binstock argues that this campaign may inadvertently undermine their own legitimacy and research support by blurring public understanding of the difference between their work and pseudoscientific products.

HRT reduces diabetes rates in some women

Researchers found that hormone therapy (HRT) significantly reduced the risk of developing type 2 diabetes among postmenopausal women with coronary heart disease and impaired fasting glucose. The study, published in Annals of Internal Medicine, suggests HRT may have metabolic benefits that outweigh the risks for certain high-risk groups.

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.

Further evidence that HRT does not protect against cardiovascular disease

A study of 1000 postmenopausal women who survived a first heart attack found no difference in recurrent heart attacks or cardiac death between those given oestrogen therapy and placebo. The study provides insufficient evidence to alter current guidance against HRT for cardiovascular disease prevention.

Postmenopausal women cut smoking, lower bone loss protein levels

A study published in Nicotine & Tobacco Research found that postmenopausal women who quit or cut back on smoking experienced a significant drop in SHBG and NTx levels, two proteins linked to bone loss. This discovery may help explain how smoking contributes to osteoporosis in this demographic.

More treatment options for women requiring emergency contraception

A randomized trial found that a single dose of 1.5 mg levonorgestrel is as effective as traditional regimens for emergency contraception, with no significant differences in pregnancy rates or side-effects. The new regimen simplifies use and reduces side effects, allowing women to begin regular contraception sooner.

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.

Annals of Internal Medicine tip sheet Nov. 19, 2002

A new study supports routine mammography screening for women over 75, while a separate study finds that postmenopausal hormone use and heavy drinking increase breast cancer risk. The guidelines also recommend against combined estrogen and progestin therapy for preventing cardiovascular disease in postmenopausal women.

Growth hormone, sex steroid combination 'not ready for prime time'

A recent study found that a combination of growth hormone and sex steroids showed significant increases in lean body mass and decreases in fat mass, but also reported common side effects such as joint pain and swelling. The study suggests that the treatment is not yet ready for prime time due to its adverse effects.

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.

Long-term ERT in postmenopausal women with Alzheimer's may worsen memory

A study using female rats found that long-term estrogen replacement therapy impaired memory performance, especially when combined with chronic brain inflammation. This effect is analogous to the observed decline in cognitive function in postmenopausal women with Alzheimer's disease who receive continuous estrogen therapy.

New study promises safer hormone replacement therapy

A new study found that synthetic hormone estren can build bone in animals without affecting reproductive organs. The researchers tested estren, estrogen, and testosterone in mice with and without sex organs, showing estren's potential to provide a safe form of hormone replacement therapy.

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.

Doctors too embarrassed to discuss sex

A study by Professor Lesley Fallowfield found that psychosocial discussions are often overlooked in cancer treatment consultations. Training can help doctors and nurses discuss personal and sexual issues comfortably and sensitively, improving patient outcomes.

Task force issues caution on combined hormone therapy

The American College of Physicians' Task Force concludes that combined estrogen and progestin therapy has more likely to cause harm than benefit for most women. The evidence is insufficient to recommend hormone therapy alone or together for preventing chronic conditions in postmenopausal women with hysterectomies.

Hormone replacement therapy – reviewing the evidence

The study found that hormone replacement therapy (HRT) increases the risk of breast cancer, pulmonary embolism, and stroke in women, while reducing the risk of colorectal cancer and hip fractures. HRT may also increase the risk of cardiovascular disease among older women.

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.

Annals of Internal Medicine Aug. 20 tip sheet

A new study found that flu vaccines can benefit healthy working adults aged 18-50 by avoiding lost work time and treatment costs. Hormone replacement therapy does not prevent or reduce the rate of developing heart disease, contrary to earlier studies.

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.

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.

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.