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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

Why this little-known birth control option deserves more attention

A new study found that only a quarter of reproductive health experts prescribe self-administered injectable contraceptives, despite its safety and effectiveness. The study identified barriers such as concerns about patient ability, medication availability, and lack of standardized counseling approaches.

Apple iPhone 17 Pro

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

Inflammation may contribute to female infertility

Researchers found that inflammation in the female reproductive tract can hinder fertility, but replenishing progesterone levels can help. This discovery could improve women's chances of becoming pregnant and save more pregnancies.

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.

Estrogen and progesterone stimulate the body to make opioids

Researchers discovered a mechanism that harnesses immune cells to produce opioids, potentially alleviating chronic pain. Estrogen and progesterone drive this process, which could lead to more effective treatments for women experiencing pain after menopause.

Postpartum depression discovery opens door to blood test, earlier treatment

Researchers discovered a link between neuroactive steroids in pregnant women's blood and the risk of developing postpartum depression. Measuring these molecules via a blood test could enable doctors to provide treatment sooner. The study may lead to a preventive treatment using existing prescription drugs.

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.

Different menopausal hormone treatments pose different risks

Researchers analyzed the effects of seven hormone treatments on blood clots, stroke, and heart attack in nearly one million women. The study shows that the risks differ depending on the type of treatment, with some linked to increased cardiovascular disease risk and others to no increased risk.

Key brain circuit for female sexual rejection uncovered

A team of scientists has pinpointed a critical neural circuit for female sexual rejection, revealing how the brain integrates signals to shape behavior. The ventromedial hypothalamus, specifically progesterone-sensitive neurons in the anterior VMH, play a crucial role in determining whether a female accepts or rejects mating attempts.

Progesterone protects babies from preterm birth

A recent study published in BMJ found that progesterone is more effective than a cervical pessary at reducing extreme preterm birth in women with a short cervix. Women with a cervix shorter than 25mm can benefit from progesterone treatment to prevent severe preterm birth.

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.

Genetic discovery reveals who can benefit from preterm birth therapy

Researchers identified genetic variants that predict response to treatment for preterm birth, a condition affecting one in 10 infants. High levels of mutations in certain genes are associated with lower response rates, suggesting a precision framework for future drug development.

Brain is ‘rewired’ during pregnancy to prepare for motherhood

Researchers at the Francis Crick Institute found that pregnancy hormones oestrogen and progesterone act on a small population of neurons in the brain to switch on parental behaviour. This adaptation results in stronger and more selective responses to pups, enabling mothers to care for their young.

Deciphering progesterone’s mechanisms of action in breast cancer

A new study reveals that preoperative hydroxyprogesterone administration can improve disease-free and overall survival in patients with node-positive breast cancer by modulating cellular stress response and negative regulation of inflammation. Non-coding RNAs, such as DSCAM-AS1, play a regulatory role in this process.

Progesterone decreases night sweats & improves sleep in perimenopausal women

A new study has found that Progesterone (micronized, oral) is effective in decreasing night sweats and improving sleep in perimenopausal women. The study, conducted by researchers at the University of British Columbia, involved 93% of participants completing the three-month trial with no serious adverse events.

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.

Progesterone’s protective potential against Parkinson’s

Researchers found that progesterone can protect nerve cells from dying in people with Parkinson's disease. The study suggests that a balanced diet and steroid hormone-based therapeutic approaches could help slow down or stop the progression of neurodegenerative diseases.

Model suggests lowering hormone doses in contraceptives

A new computational model suggests that reducing hormone doses in contraceptives could effectively suppress ovulation. The model found that hormone doses could be lowered by up to 92% in estrogen-only contraceptives and 43% in progesterone-only contraceptives, while still preventing ovulation.

Crosstalk between triple negative breast cancer and microenvironment

Recent studies have highlighted the importance of tumor microenvironment in developing and controlling triple negative breast cancer progression. Researchers suggest that technological advancements like genomics and epigenomics hold promise for overcoming TNBC's current limitations.

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.

Data on cancer risk from hormone therapy 'reassuring,' menopause experts say

Recent evidence suggests hormone therapy at menopause does not significantly increase the risk of invasive breast cancer. However, estrogen combined with progesterone increases breast cancer risk for women with an intact uterus. Menopause experts offer reassurance to women and their healthcare providers about the safety of hormone ther...

Hormones are linked with sleep apnea, snoring in postmenopausal women

A study published in PLOS ONE found an association between reduced estrogen and progesterone levels and increased risk of snoring and obstructive sleep apnea in postmenopausal women. Low estrogen levels were linked to a 19% decreased odds of snoring, while low progesterone levels were associated with a 9% decrease.

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.

COVID-19 pandemic stress impacts ovulation

Research presented at the Endocrine Society's annual meeting found that COVID-19 pandemic stress led to disturbed ovulation in many women. Nearly two-thirds of participants experienced short luteal phases or anovulation, indicating a significant impact on reproductive health.

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.

A fish story with a human tell

Researchers used an ancient fish, elephant sharks, to gain insights into human biology and how a widely used medication works. The findings show that progesterone receptor activation in humans requires a different mix of hormones and steroids than in elephants sharks, with the latter not inhibited by RU486.

Fish are being increasingly exposed to endocrine disrupters

A recent study reveals that fish ingest progesterone through microplastics, releasing the hormone into their digestive tract. Researchers found that microplastics act as vectors for exposing fish to micropollutants like progesterone, which can have significant environmental and health impacts.

Sex differences emerging in blood pressure regulation

Researchers found that females rely more heavily on aldosterone to regulate blood pressure, whereas males primarily use angiotensin II. This discovery could lead to targeted treatments for female hypertensive patients, improving treatment outcomes and reducing the risk of heart disease and stroke.

Fluke 87V Industrial Digital Multimeter

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

Celestron NexStar 8SE Computerized Telescope

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

Could birth control pills ease concussion symptoms in female athletes?

A Northwestern Medicine pilot study found that high levels of progesterone during the menstrual cycle can reduce stress after a concussion and speed recovery. Increased blood flow to the brain is also linked to lower stress symptom levels, providing new insights into how female athletes may recover from concussions.

How a gene called HAND2 may impact the timing of labor

A study found that the HAND2 gene becomes less active in humans as labor nears, suggesting it may play a role in regulating gestation length. The gene evolved to be turned on in uterine linings of placental mammals during pregnancy.

Women with Neandertal gene give birth to more children

Researchers found that women inheriting a Neandertal gene variant have lower rates of early miscarriages, fewer bleedings during pregnancy, and higher birth rates. The study suggests the variant has a favorable effect on fertility, with increased progesterone receptor production leading to greater sensitivity and protection.

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.

Human pregnancy is weird -- new research adds to the mystery

A recent study found that the progesterone receptor gene evolved rapidly in humans, but its function was compromised, potentially leading to complications like preterm birth. The research provides insight into the evolution of human pregnancy and raises more questions about this complex process.

A better pregnancy test for whales

Researchers from NIST and Griffith University developed a new test that measures multiple hormones simultaneously, providing a more reliable marker of pregnancy. This technique improves the accuracy of hormone tests, enabling biologists to better understand whale populations and their environmental health.

A new way to assess male fertility

A new microfluidic chip developed by researchers can quickly identify small differences in sperm chemotactic behavior, providing a more complete picture of male fertility. The device uses a concentration gradient of progesterone to guide sperm towards the egg, offering a pump-free alternative to existing tests.

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.

Progesterone from an unexpected source may affect miscarriage risk

A recent study found that disruptions in progesterone signaling between maternal and embryonic tissue may be linked to recurrent miscarriage. The study discovered that migratory cells from the placenta produce enzymes necessary for progesterone production, which are lower in women with a history of recurrent miscarriages.

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.

Regeneration science takes a leap forward

Researchers at Tufts University have discovered that delivering progesterone via a wearable bioreactor can induce partial limb regeneration in adult frogs. This breakthrough could lead to new treatments for amputation injuries, potentially benefiting millions of people worldwide.

Meta Quest 3 512GB

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

Does stabilizing female hormones help lower suicide risk?

Researchers aim to determine if stabilizing estradiol and progesterone can protect females at risk for suicide from increased depression and suicidal thoughts around menses. The study will compare symptoms of suicidality among participants in three experimental conditions: placebo, estradiol stabilization, and progesterone stabilization.

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.

Scientists work to protect obese, younger women from cardiovascular work

Researchers are exploring how obesity impacts cardiovascular health in premenopausal women, a population with heightened risk due to estrogen levels and hormone sensitivity. They aim to understand the underlying mechanisms and identify potential treatments to restore protection against cardiovascular disease.