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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

Rising CO2 poses significant threat to human nutrition

A new study led by Harvard School of Public Health finds that elevated CO2 concentrations will significantly reduce zinc and iron concentrations in crops providing a large share of the global population's dietary intake. The reduction poses a major health threat, with an estimated loss of 63 million life years annually from malnutrition.

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.

Theoretical biophysics: Adventurous bacteria

Researchers at LMU München develop a mathematical model that shows how Bacillus subtilis populations benefit from balancing growth and migration. By doing so, they adapt to changing environments more effectively than specialized bacteria.

Nutrient-rich forests absorb more carbon

A new study found that forests growing in fertile soils with ample nutrients can sequester up to 30% of the carbon they take up during photosynthesis. In contrast, nutrient-poor forests retain only 6% of that carbon, which is released back into the atmosphere as respiration.

Deforestation of sandy soils a greater climate threat

Researchers found that deforestation has minimal effects on muddy clay-like soils, but dramatically alters microbial communities in sandy soils, leading to increased carbon loss and potential for exaggerating global warming. This discovery could inform land management practices prioritizing the conservation of biodiversity and sequestr...

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.

Less is more: New theory on why very low nutrient diets can extend lifespan

Researchers at UNSW Australia propose that very low nutrient diets may extend lifespan in laboratory animals by increasing cellular recycling and repair mechanisms. This effect could potentially lead to longer, healthier lives for humans through a better understanding of these cellular recycling mechanisms.

In grasslands remade by humans, animals may protect biodiversity

A worldwide study found that grazing animals can improve biodiversity in over-fertilized grasslands by allowing native plants to compete for sunlight. The study, which analyzed data from 40 sites across six continents, suggests that the removal of fertilizer and introduction of grazing animals can lead to increased plant diversity.

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.

Altruistic suicide in organisms helps relatives

A new study by Dr Pierre Durand and colleagues found that programmed cell death in single-celled algae benefits the organism's relatives, releasing nutrients that inhibit growth of non-relatives.

McMaster researchers discover secret of bowel movement

Researchers clear up mystery of bowel movement, finding that segmentation motion occurs when two sets of pacemakers interact to create a specific rhythm. This discovery provides direction for developing drugs or nutrients to combat disorders like diarrhea and constipation.

Graduate student makes major discovery about seal evolution

Thomas Cullen's research found evidence of sexual dimorphism in seals between 20-27 million years ago, suggesting that early pinnipeds formed harems. This discovery sheds light on the history of pinnipeds and has major implications for the future of the species due to climate change.

GVSU researchers draw link between zebra mussels, risk of algae blooms

Researchers at Grand Valley State University found a link between zebra mussels and increased risk of algae blooms in Muskegon Lake and Bear Lake. The invasive mussels stimulate nutrient releases, while native chironomids increase oxygen levels, making the lakes more prone to toxic blooms.

Apple iPhone 17 Pro

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

Agricultural fires in Ecuador Dec. 3, 2013

NASA detects widespread agricultural fires in Ecuador on December 3, 2013. The fires were likely set to manage land and clear unwanted plants, producing smoke that degrades air quality.

Intestinal bacteria influence food transit through the gut

Researchers at the University of Gothenburg discovered that intestinal bacteria regulate food transit time, controlling nutrient absorption. The hormone GLP-1 plays a key role in this process, influencing appetite control and insulin secretion.

Meta Quest 3 512GB

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

Respiratory disorder in the ocean

A German-Peruvian science team found that ocean eddies play a crucial role in distributing oxygen and nutrients in the oxygen minimum zones. This discovery helps improve model computations to predict future expansions of low-oxygen areas in the ocean, addressing the threat of ocean de-oxygenation.

Buffaloberry may be next 'super fruit'

The buffaloberry contains high amounts of lycopene and methyl-lycopenoate, making it an excellent source of antioxidants and nutrients. The fruit is also being considered as a natural food colorant and has potential applications in commercial wine production.

Researchers suggest plan to address hypoxia in Gulf of Mexico

University of Illinois researchers suggest a partnership between farmers and scientists to develop effective practices for reducing nitrogen and phosphorus losses from agricultural fields. The goal is to find widespread regional acceptance and reduce the size of the hypoxic zone in the Gulf of Mexico.

We'll rise or fall on the quality of our soil

The productivity of many lands has been dramatically reduced due to soil erosion, salinity accumulation, and nutrient depletion. A sustainable approach to agriculture is needed to maintain soil fertility and address climate change and biodiversity loss.

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.

Hypoxia issues in the Gulf of Mexico

The Gulf of Mexico's dead zone is exacerbated by excessive nutrient runoff from US agricultural practices. Experts recommend adopting cover crops and subsurface drainage systems to reduce nitrogen and phosphorus export. Despite potential challenges, implementing these practices could mitigate the problem.

How tiny organisms make a big impact on clean water

A new study reveals that microscopic suspension feeders overcome physical constraints by changing their angle relative to surfaces, maximizing access to fresh water and filtering the surrounding water. These tiny organisms filter up to 25% of seawater daily, making them essential for aquatic ecosystems.

Fluke 87V Industrial Digital Multimeter

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

The fish and the egg: Towards a new strategy for fattening up red drum in Texas

Researchers at the University of Texas at Austin have found that a specific diet immediately before spawning significantly impacts the fatty acid content of red drum eggs. This discovery could lead to improved survival rates and reduced resource usage in fish farming, benefiting both the environment and the state of Texas.

Recent highlights in Molecular Biology and Evolution

Researchers developed a high-throughput assay to track cell growth at low nutrient concentrations, revealing metabolic differences among cells of the same strain in the same environment. The study also found significant genetic variation in Sherpa populations' mitochondrial genomes, suggesting an adaptation for low oxygen environments.

Earth's wobble 'fixes' dinner for marine organisms

Researchers discovered that the Earth's cyclic wobble affects the production of fixed nitrogen, a nutrient crucial for marine organisms. The study reveals that precession-driven upwelling brings nitrogen-poor water to the surface, where blue-green algae convert it into biologically usable forms.

Simple math sheds new light on a long-studied biological process

Researchers applied simple math to a long-studied biological process, finding that catabolite repression is controlled by the difference between glucose and other essential nutrients. This discovery demonstrates the power of quantitative biology in elucidating complex biological processes.

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.

Scientists solve a 14,000-year-old ocean mystery

Researchers found that a transient 'perfect storm' of nutrients and light led to the brief bloom of phytoplankton 14,000 years ago. The study resolves conflicting ideas about the relationship between iron and biological productivity in the North Pacific, with implications for geo-engineering efforts to curb climate change.

A route for steeper, cheaper, and deeper roots

Plants with thinner roots show natural variation in cortical cell number, reducing energetic cost of soil exploration and increasing rooting depth. This trait could lead to improved seed production for agriculture, maintaining high yields in drought-prone regions.

Balancing food security and environmental quality in China

Chinese agriculture's remarkable success in feeding the world's population comes with significant environmental costs. Massive losses of nutrients pollute streams, rivers, soil, and air, while CAFOs drive global resource consumption. Efforts to shift focus towards food security, efficient use of resources, and environmental protection ...

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.

Getting kids to eat their veggies: A new approach to an age-old problem

A new approach to getting kids to eat their veggies involves teaching them a conceptual framework for nutrition, which encourages understanding of why eating a variety of foods is ideal and increases vegetable consumption. The study found that preschoolers who were taught about nutrition showed more knowledge about nutrition and increa...

Spanish researchers reformulate the model of mitochondrial function

Researchers confirm their 2008 model for mitochondrial function, which explains the symptoms of diseases and reveals the role of five molecular machines in converting energy. The study also highlights the dynamic nature of mitochondrial energy extraction, which can be optimized based on dietary composition.

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.

Sexual selection in the sea

Female southern bottletail squid consume male ejaculates, using nutrients for egg growth, and target larger females to minimize consumption. This strategic behavior affects males' chances of fertilizing eggs.

Ants and carnivorous plants conspire for mutualistic feeding

Researchers discovered a mutualistic relationship between ants and carnivorous pitcher plants, where ants help prevent nutrient loss to flies. The study found that ant colonies increase plant growth and capture efficiency by hunting mosquito larvae, demonstrating a novel type of nutritional interaction.

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.

The compound in the Mediterranean diet that makes cancer cells 'mortal'

A compound found in plant-based foods like parsley and celery has been shown to re-educate cancer cells into normal cells, making them more susceptible to death. The study, led by Ohio State University researchers, suggests that apigenin can restore normal gene regulation, leading to increased cell death rates among breast cancer cells.

Don't judge the nutrient content of white vegetables by color alone

A new journal supplement highlights the nutritional benefits of white vegetables, debunking the myth that they are less nutritious than their colorful counterparts. Key findings include a substantial body of evidence demonstrating how white vegetables contribute important amounts of essential shortfall nutrients to the American diet.

Corals turn to algae for stored food when times get tough

Researchers at EPFL discover that corals depend strongly on algae to extract nutrients from the water. The algae temporarily store nitrogen in the form of uric acid crystals, building up reserves for times when supplies run low. This symbiotic relationship is crucial for coral survival in nutrient-poor environments.

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.

Agricultural fires dot Mexico

Hundreds of deliberate fires were detected in Guerrero, Oaxaca, Michoacan, Colima, and Jalisco regions. The fires are managed by farmers to clear land and enhance crops, but also produce smoke degrading air quality.

Discovery helps explain how children develop rare, fatal disease

Researchers at the University of Missouri have found that the ATP7A gene is essential for copper absorption, leading to a better understanding of Menkes disease. The study used laboratory mice and discovered that the gene's absence can lead to copper deficiency symptoms similar to those seen in children with the disease.

Nitrogen has key role in estimating CO2 emissions from land use change

A global-scale modeling study finds that carbon emissions from human activities on land were 40% higher in the 1990s due to nitrogen's limiting effect on plant growth. This underestimation has significant implications for international policy, requiring deeper emission cuts to meet mitigation targets.

Fertility needs in high-yielding corn production

Researchers found that high amounts of nitrogen, potassium, phosphorus, and sulfur are needed for modern corn hybrids, with applications made during key growth stages to maximize crop growth. Adequate accounting for nutrients with high harvest index values is vital to maintaining long-term soil productivity.

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.

Ocean nutrients a key component of future change say scientists

A multi-author review paper reviews ocean nutrient patterns and interactions, highlighting their influence on climate by fuelling biological production. The study emphasizes the importance of understanding nutrient cycles in predicting future environmental changes.

Extreme algae blooms: The new normal?

A record-breaking algae bloom in Lake Erie was triggered by a combination of long-term agricultural practices and extreme weather events. The researchers predict that future blooms will be even more severe unless agricultural policies are revised to reduce nutrient runoff.

Extreme algal blooms: The new normal?

A research team led by Anna Michalak found that the 2011 record-breaking algal bloom in Lake Erie was triggered by long-term agricultural practices combined with extreme precipitation, weak lake circulation, and warm temperatures. The team predicts future mega-blooms unless scientifically guided management plans are implemented.

A better understanding of the impacts of grazing sheep

A study in Montana found that grazing sheep during fallow seasons can improve soil chemistry, increasing calcium, sulfur, and electrical conductivity. Grazing also had no negative effects on soil organic matter and crop yields, with the sheep returning phosphorus and potassium to the soil through their feces and urine.

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.

When hungry, Gulf of Mexico algae go toxic

A new study by North Carolina State University and NOAA found that harmful algal blooms in the Gulf of Mexico become two to seven times more toxic when phosphorus levels are low. This increased toxicity allows the algae to defend themselves against grazing zooplankton, posing a threat to human health and ecosystem.

When food is scarce, a smaller brain will do

Researchers found that the brain prioritizes neural diversity over number of neurons when faced with limited nutrients, a strategy essential for survival. This discovery may have implications for understanding human brain development and addressing intrauterine growth restriction.

Commercial future for Model Gut

The Dynamic Gastric Model simulates human stomach processes accurately, enabling drug and food testing. A new £900k project will refine the model to predict nutrient and drug availability in humans.