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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

Researchers uncover mechanism that links NAD+ to fertility problems

Scientists at Buck Institute reveal how NAD+ decline affects female reproductive function and longevity. Adding CD38 to the puzzle, they found that this enzyme degrades NAD+, accelerating aging processes. Targeting CD38 may offer new approaches to enhance fertility and overall healthspan.

Apple iPhone 17 Pro

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

Editorial: Epigenetic aging in oocytes

The editorial discusses epigenetic mechanisms leading to oocyte quality loss, a significant factor in age-related fertility decline. Researchers highlight the importance of understanding this process to address the growing issue of advanced maternal age and its impact on reproduction.

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.

Endometriosis linked to reduction in live births before diagnosis of the disease

A new study published in Human Reproduction found that women with endometriosis are more likely to experience a reduction in live births before receiving a definitive diagnosis. The research, which included over 18,000 women with surgically-confirmed endometriosis, showed that the number of first live births among these women was half ...

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.

A novel hydrogel may be a beacon of hope for infertility and fertility challenges

A novel hydrogel has been developed to induce endometrial regeneration and elucidate its mechanism, offering new hope for patients struggling with infertility. The gel, made from uterus-derived decellularized extracellular matrix, successfully regenerated the endometrium in mice, creating a favorable environment for embryo implantation.

Happy worms have healthy eggs

A new study found that selective serotonin reuptake inhibitors (SSRIs) improved the quality of aging females' egg cells in roundworms by reducing embryonic death and chromosomal abnormalities. Replication in fruit flies confirmed the findings, suggesting a shared signaling system between species.

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.

Diet high in fruit and vegetables linked to lower miscarriage risk

A diet high in fruit and vegetables is associated with a lower miscarriage risk, with significant reductions seen for each food group. The meta-analysis of 20 studies found that consuming high amounts of fruit may reduce the risk by up to 61%, while high vegetable intake is linked to a 41% reduction.

Time-restricted fasting could cause fertility problems

A new study published in Proceedings of the Royal Society B found that time-restricted fasting affects reproduction differently in male and female zebrafish. After returning to normal food consumption levels, females increased offspring production at the cost of reduced egg quality, while male sperm quality also decreased.

New IVF method: More expensive, not more effective

A new IVF method using time-lapse monitoring has been found not to improve pregnancy rates or shorten the time it takes to get pregnant. The study, which evaluated 1731 patients over a year, also found that this approach does not lead to extra costs or benefits.

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.

Researchers discover way to reverse infertility by reducing HDL cholesterol

Researchers at Houston Methodist discovered a way to reverse infertility in sterile mice by reducing high-circulating cholesterol with a bacterial protein. The study showed that this protein, called serum opacity factor, lowered HDL cholesterol levels by over 40% in three hours and restored fertility in the mice.

Endometriosis: how to diagnose and manage this complex condition

A new clinical review provides an overview of endometriosis causes, diagnosis, and management based on the latest evidence. The review aims to help clinicians and patients understand this complex condition, which affects approximately 1 in 10 women of reproductive age.

Celestron NexStar 8SE Computerized Telescope

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

Keeping babies alive will lower population growth – new research

Research led by Professor Corey Bradshaw found that higher baby death rates and larger household sizes contribute to higher fertility rates, supporting the need for greater access to family planning and contraception. The study suggests that increasing access to quality contraception can help reduce infant mortality and curb population...

New strategy for cryopreservation of mouse follicles

Researchers developed a low-concentration cryoprotective agent vitrification method to preserve mouse preantral follicles, improving survival rates by 1/3. The approach integrated microencapsulation and physical heating techniques for enhanced cell protection.

Fluke 87V Industrial Digital Multimeter

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

Study reveals how the ovarian reserve is established

Researchers identify PRC1 as key to establishing and maintaining ovarian reserve, providing insights into female reproductive health and lifespan. The study's findings may help explain premature ovarian failure and infertility in humans.

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.

Low birth weight among IVF children not linked to infertility treatments

Research involving nearly 250,000 US families found that medically assisted reproduction techniques, including IVF, do not significantly affect birth weight and pregnancy term. Once family circumstances are considered, the differences between MAR-conceived babies and naturally conceived children become insignificant.

Sterilizing skeeters

Researchers at UC Santa Barbara have created sterile male mosquitoes using CRISPER/Cas9, a technique that could suppress Aedes aegypti populations. The study found that the mutant males produced no sperm but still suppressed female fertility, making them effective in controlling mosquito populations.

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.

Gene editing suppresses fertility in Aedes aegypti

Researchers used CRISPR/Cas9 to create sterile male mosquitoes that suppress female fertility in Ae. aegypti. This reduction in female fertility can help combat disease spread by increasing the presence of sterile males in wild populations.

A molecular alarm clock awakens resting ovules

Researchers found that fruit fly ovules use a molecular 'alarm clock' to track time and turn genes back on when ready for ovulation. This mechanism is critical for female fertility, as defects can lead to infertility.

Female fertility affects men's linguistic choices

A study published in PLoS ONE found that men are less likely to match their language to a female conversation partner if she is fertile. The researchers suggest that this could be a way for men to display their mating fitness.

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.

Male chimpanzees prefer mating with old females

Male chimpanzees show a preference for mating with older females, a stark contrast to human behavior where younger females are often preferred. This finding suggests that long-term pair bonding and menopause may have evolved in the human lineage after diverging from chimpanzees.

Swedish researchers warn university students face infertility

A study by Swedish researchers found that nearly all women wanted children, but only 3% preferred to delay their last birth until between 35 and 39. Many women also delayed their first child until their 40s. The study highlights the need for increased awareness of age-related decline in female fertility.

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.

Unexplained infertility -- the way forward in the fog

For couples experiencing unexplained infertility, a five-step treatment program has shown a 75% success rate in conception. The program includes careful evaluation and escalating steps such as antibiotics, intra-uterine insemination, and IVF with ICSI.