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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

One drug tackles two diseases, Case researcher finds

Researchers found that risedronate therapy significantly reduced plaque and improved periodontal status in postmenopausal women with osteoporosis. The study also highlighted the link between osteoporosis and periodontal disease, suggesting similar treatment and management may minimize tooth 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.

Light-induced hormone surge points to benefits of light therapy

Researchers found that light exposure triggers a massive surge of corticosterone in mice, playing a key role in physiological changes evoked by light. The study suggests light therapy may have beneficial effects on patients with seasonal affective disorder and other metabolic disorders.

Causes of primary biliary cirrhosis

Researchers found associations between PBC and family history of Sjogren's syndrome, urinary tract infection, smoking, nail polish use, and hormone replacement therapy. Never having been pregnant also showed protection from developing the disease.

Apple iPhone 17 Pro

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

Benefits of longer-term tamoxifen use may take years to appear

A study of 1901 women with early-stage breast cancer found that longer tamoxifen treatment periods resulted in improved overall survival, particularly in younger patients. Women aged 50-55 showed significant overall survival improvement after five years of treatment.

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.

Other highlights in the September 21 JNCI

Men who survive testicular cancer are at higher risk of developing a second cancer for at least 35 years after diagnosis, mostly due to late side effects of treatment. Cancers such as bladder, colon, and stomach cancers account for most excess risks, with young patients facing even greater dangers.

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.

Joint pain and estrogen deprivation

Recent evidence suggests a link between estrogen deprivation and joint pain, particularly in women undergoing hormone therapy for breast cancer. Studies have shown that aromatase inhibitors and other estrogen-depleting treatments can increase the risk of musculoskeletal symptoms, including joint pain.

Drug can reduce hot flashes for women with breast cancer

A new study by Kishan Pandya and colleagues found that gabapentin significantly reduced hot flash severity scores in women with breast cancer. The results suggest that gabapentin can be added to the list of non-hormonal agents for controlling hot flashes in these patients, with further studies needed on higher doses.

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.

Cancer link with hormone therapy known since 1930s, say researchers

Researchers argue that the pharmaceutical industry and medical professionals colluded to promote the view that menopause is a 'deficiency disease' for which women needed long-term treatment. This has led to increased risk of cancer, cardiovascular health issues, and other adverse effects.

New study on OTC progesterone health risks in women published

A recent study published in The Journal of Clinical Pharmacology found that use of over-the-counter (OTC) topical progesterone results in significant drug exposure through skin absorption, comparable to prescribed oral progesterone products. The study revealed similar rates of adverse effects among women taking both types of progesterone.

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.

Women report various symptoms after stopping hormone therapy

A study of 8,405 women found that moderate or severe vasomotor symptoms were reported by 21.2% of former hormone therapy users, compared to 4.8% of placebo group respondents. Lifestyle and medical strategies may help manage symptoms after discontinuing hormone therapy.

Breast cancer growth regulator holds promise for more targeted treatment

A recent study by Yale University researchers found that sEGFR, a breast cancer growth regulator, can indicate the effectiveness of letrozole in postmenopausal women with metastatic breast cancer. Decreased concentrations of sEGFR were seen in 73% and 76% of patients after one month and three months of treatment respectively.

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.

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.

Study shows new method of growth hormone dosing improves height

A new dosing approach for growth hormone based on serum levels of insulin-like growth factor-I (IGF-I) shows improved height increases in children with growth hormone deficiency or short stature. The study found that increasing IGF-I levels resulted in significant gains in height, particularly in those receiving higher doses.

Studies on HRT for breast cancer patients can give false hopes

A recent study analyzed 10 studies on HRT and breast cancer, finding that randomized controlled trials show an increased risk of recurrence. The authors conclude that qualitative studies are unreliable due to methodological limitations and potential publication bias.

Breast tumor's biological traits guide hormone therapy

A new mathematical model simulates 10-year disease-free survival in postmenopausal women with hormone-receptor positive breast cancer. The model reveals that the best treatment strategy depends on tumor biology, recommending tamoxifen and aromatase inhibitor treatment for different cases.

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.

HIV treatment not affected by hormonal birth control

A new study found no association between hormonal contraceptive use and changes in CD4+ cell count or viral load suppression after initiating HAART. Continuous HAART use significantly improved HIV disease progression outcomes, with increased CD4+ counts and undetectable viral loads.

Herbal medicine may alter cell response to cancer therapeutic agents

A study found that commercially available extracts of black cohosh increased cell killing by two of four drugs used in cancer therapy for breast cancer patients. However, the herb also decreased the effectiveness of one drug. Further research is needed to understand why these effects occur.

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.

Mesotherapy not proven as a safe alternative to liposuction

A non-surgical method called mesotherapy claims to remove fat and contour the body, but there is no scientific evidence supporting its safety or efficacy. Plastic surgeons recommend liposuction instead due to its proven track record of safely removing fat.

Hormone aids recovery in rats with hemorrhagic stroke

A new study found that erythropoietin reduced inflammation and cell death, improving functional recovery after hemorrhagic stroke in rats. The treatment also showed decreases in brain water content and increases in behavioral recovery.

Earlier use of prostate cancer vaccines urged by Hopkins scientists

Researchers found that vaccinating mice with prostate cancer immediately after hormone therapy triggers a stronger T-cell response against the cancer. The strategy could lead to better vaccine effectiveness in humans, delaying the need for additional treatments or hormone therapy.

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.

Hormone therapy increases risk of urinary incontinence

A large clinical trial found that menopausal hormone therapy increased the incidence of urinary incontinence, particularly stress UI, and worsened its characteristics among symptomatic women. The study suggests that MHT should be reevaluated as a treatment option for UI.

The history and controversy behind post-menopausal hormone therapy

The study found no benefit for women's health-related quality of life from post-menopausal hormone therapy, but increased risk of breast cancer, cardiovascular events, and stroke. This has led to a dilemma among stakeholders, including physicians and pharmaceutical companies.

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.

Changing chemistry helps explain estrogen threat to the heart

Researchers at Medical College of Georgia have found changes in blood vessel chemistry that may explain how estrogen increases the risk of heart disease in older women. Estrogen targets nitric oxide synthase, producing a powerful age-promoting oxygen-free radical instead of making nitric oxide.

Hormone therapy controversy raises drug safety issues

Researchers examine the 75-year history of hormone therapy, including the Women's Health Initiative study that found increased risks of breast cancer, dementia, and heart attacks in women taking combination hormone therapy. The authors argue that conflicting interests between women, physicians, and drug companies have contributed to th...

New non-hormonal hot flash treatment set for clinical trial

Researchers at the University at Buffalo are conducting a 12-week study to evaluate the effectiveness of an amino acid supplement in reducing hot flashes in postmenopausal women. The trial will compare the active treatment with a placebo, and results may offer an alternative to hormone replacement therapy.

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.

Silent risk of osteoporosis in men with prostate cancer

A study found that prostate cancer patients receiving androgen deprivation therapy were at high risk of osteoporosis, yet few received prevention or treatment. Only primary care physicians were aggressive in managing osteoporosis risk.

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.

New breast cancer study shows hormonal therapy not enough

A new study by Loyola Medicine found that tamoxifen or other hormonal therapy alone may not be sufficient to treat hormone-dependent breast cancer. Chemotherapy proved more effective in stopping cancer recurrence, especially when combined with tamoxifen.

Using celebrities to market drugs and diseases: what’s the problem?

The use of celebrities to market drugs and diseases is a practice that raises concerns about public health and transparency. According to investigative reporter Ray Moynihan, this practice can lead to a lack of balance in the public debate about major health problems, as well as a failure to disclose potential conflicts of interest.

Army-funded effort examines androgen's role in bone loss

A four-year project aims to understand how androgen influences the skeleton, with potential implications for stress fracture prevention and treating osteoporosis. The study examines the effects of androgen therapy on bone health in both men and women.

Celestron NexStar 8SE Computerized Telescope

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

DHEA may help decrease abdominal fat in elderly persons

A randomized, double-blind, placebo-controlled trial found that DHEA replacement therapy significantly decreases both visceral and subcutaneous abdominal fat in elderly men and women. The therapy also improves insulin action, correlating with the reduction in visceral fat.

New insights into hormone therapy highlight when estrogen best aids brain

Researchers examine how and why hormone therapy affects cognition, finding that treatment regimen influences memory performance. Continuous versus cyclical estrogen regimens show differing effects on cognitive function, with cyclical regimens leading to more errors in reference and working memory tests.

OHSU study: Testosterone deprivation makes men forget

A study found that word retention drops sharply after two minutes among men undergoing testosterone deprivation therapy, despite initial encoding being similar to healthy men. The lack of testosterone affects the function of the hippocampus, a curved ridge in the brain controlling learning and memory.

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.

Type of hormone therapy may affect heart attack severity

A study found that hormone therapy can limit heart muscle damage to 5% or cause permanent damage to 35%. Researchers are exploring how estrogen alone and other anti-inflammatory treatments may impact muscle damage. The study suggests different hormone therapies may have varying effects on postmenopausal women.

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.