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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

'Brain waves' challenge area-specific view of brain activity

Research by David Alexander and Cees van Leeuwen reveals that brain activity is not limited to specific areas, but rather follows a wave-like pattern across the entire cortex. This challenges traditional views of brain function and highlights the complex, dynamic nature of brain activity.

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

Astrocyte signaling sheds light on stroke research

Researchers at Tufts University School of Medicine found that modifying astrocyte signals can limit the spread of damage after an ischemic brain stroke. By regulating neurotransmitter pathways, astrocytes play a critical role in the spread of damage following stroke.

New cancer diagnostic technique debuts

A team of Chilean researchers, with collaboration from Carnegie's Wolf Frommer, has devised a molecular sensor to detect lactate levels in individual cells in real-time. This breakthrough provides an unprecedented sensitivity and range of detection for non-invasively detecting cancer.

JCI early table of contents for March 8, 2013

Heavy drinkers show enhanced brain acetate metabolism, which may provide an energetic reward to compensate for drops in blood glucose levels. Additionally, planar cell polarity genes guide the formation of gut neurons, and their dysfunction is linked to gastrointestinal motility disorders.

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.

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.

Using human brain cells to make mice smarter

Researchers implanted human brain cells into mice, finding enhanced learning and memory compared to normal mice. The study suggests that human-specific glial form and function contribute to the evolution of human cognition.

Even mild traumatic brain injuries can kill brain tissue

Scientists have found that mild traumatic brain injuries can lead to swelling, reduced blood flow, and death of neurons. Astrocytes, which supply nutrients to neurons, swell quickly and significantly, smothering them and their branches. This secondary damage can occur within hours of the initial injury.

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.

Researchers discover workings of brain's 'GPS system'

A new study from Princeton University provides evidence for how the brain performs this feat. Grid cells are neu­rons that become elec­tri­cally active as ani­mals travel in an envi­ron­ment, and their activ­ity ramping up and down corresponds with a pro­posed mech­a­nism of neural com­pu­ta­tion called an attrac­tor net­work.

Brain adds cells in puberty to navigate adult world

Researchers at Michigan State University have discovered that the brain adds new cells during puberty to help navigate complex social cues, a process previously thought to be limited to two brain regions. The findings suggest that these new cells play a crucial role in adult reproductive function and behavior.

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Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Influenza study: Meet virus' new enemy

Scientists have discovered a new class of molecular compounds capable of killing the influenza virus. The compounds work by clogging up an enzyme that helps the virus spread, and are more effective because they are water-soluble. This breakthrough could buy scientists time to develop new vaccines for emerging strains of influenza.

Signaling pathway linked to fetal alcohol risk

Researchers at Harvard Medical School have identified a signaling pathway that may determine genetic susceptibility for the development of FASD. The study found that phosphorylation events inside cells can render L1 adhesion molecules more vulnerable to alcohol's inhibitory effects, providing new targets for diagnosis and therapy.

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Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Scientists discover how animals taste, and avoid, high salt concentrations

Researchers at Columbia University Irving Medical Center have identified two opposing behaviors triggered by salt concentrations in mammals, allowing them to avoid high-salt diets. The discovery may lead to the development of taste modulators to control appetite and reduce the effects of excessive sodium intake.

Rice University lab shows how blood vessels regroup after stroke

Researchers at Rice University created a computer model to study the growth of tiny blood vessels in the brain after a stroke. They found that individual cells respond to stimuli using rules and patterns, which can be replicated to guide vessel structure development.

Key protein revealed as trigger for stem cell development

Scientists have identified a natural trigger that enables stem cells to develop into different cell types in the body, including liver and brain cells. The discovery of protein Tcf15 could help improve techniques for turning stem cells into other cell types in the laboratory.

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

Chili peppers spark discovery

Researchers at Washington State University have made a breakthrough in repairing damaged brain cells using the active compound of chili peppers. The discovery has potential to provide relief for concussions and other health effects seen in athletes and head-injury victims.

Monell scientists identify elusive taste stem cells

Researchers at Monell Chemical Senses Center have identified progenitor cells in taste tissue that can differentiate into functional taste cells, potentially helping treat clinical taste dysfunction. The discovery opens up new areas for studying taste cell renewal and contributes to stem cell biology.

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Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Hit by 2 hammers

Researchers identify new gene associated with Hirschprung Disease and demonstrate how deficiencies in two candidate genes synergize to halt gut nervous system formation. Understanding this genetic basis may lead to better diagnostics and treatment for the condition.

Studies provide insights into inherited causes of autism

Two new studies identify inherited genetic mutations linked to autism spectrum disorders, suggesting that 5% of autism risk is due to complete gene function disruption. Researchers also found partial loss of gene function and variability in autism severity despite similar genetic mutations.

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Oxygen chamber can boost brain repair

Researchers at Tel Aviv University found that hyperbaric oxygen therapy significantly resuscitated activity in damaged brains, even years after initial injury. The treatment increased oxygen levels in the body, supplying energy for rebuilding neuronal connections and stimulating inactive neurons.

Lack of protein Sp2 disrupts neuron creation in brain

Researchers at North Carolina State University found that the lack of Sp2 protein disrupts neural stem cell division and leads to a decline in neurons in the developing and postnatal brain. This discovery could have implications for understanding neurodevelopmental diseases and regenerative medicine.

Regulating single protein prompts fibroblasts to become neurons

Scientists at University of California, San Diego, discovered that repressing a single protein in fibroblasts is enough to convert them into functional neurons. This finding has far-reaching implications for developing new treatments for neurodegenerative diseases like Alzheimer's and Parkinson's.

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CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Big brains are pricey, guppy study shows

A new study on guppies reveals that bigger brains come at a cost, with larger brain sizes associated with reduced reproductive output and smaller guts. The research supports the idea that relative brain sizes among species are shaped by a balance between selection for increased cognitive ability and the costs of a big brain.

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Study reveals how the brain categorizes thousands of objects and actions

Researchers mapped out how 1,705 distinct object and action categories are represented across the brain's surface, finding a continuous semantic space that organizes similar categories together. The study's results demonstrate an efficient way for the brain to represent diverse categories in a compact spatial manner.

Study details brain damage triggered by mini-strokes

A new study reveals that mini-strokes result in prolonged periods of brain damage and cognitive impairment, with neurons being lost due to delayed processes. The research suggests a longer therapeutic window to protect cells after these tiny strokes, potentially extending to days and weeks after the initial injury.

A promising clinical trial to reduce the severity of autistic disorders

A clinical trial has shown that a diuretic can reduce the severity of autistic disorders in three-quarters of children. The treatment, which involves administering bumetanide to children with autism or Asperger's syndrome, has been found to improve symptoms such as social interaction and communication.

What causes hot flushes during menopause?

A team of researchers has identified KNDy neurons as a likely control switch of hot flushes, suggesting that hormonal changes in menopause trigger vasodilation and increased body temperature. The discovery provides a crucial step towards developing more effective treatments for hot flushes.

Disgust circuit: Flies sniff out and avoid spoiled food

Researchers discovered a dedicated olfactory circuit in flies that detects harmful microbes, enabling them to avoid feeding on toxic substances. The circuit is sensitive to low concentrations of geosmin, an earthy odor produced by harmful fungi and bacteria.

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.

The many maps of the brain

Researchers discover at least four different modules in the brain dedicated to self-location, each with its own internal GPS-like mapping system. The discovery challenges previous understanding of how the brain organizes abstract functions and opens up new possibilities for memory formation.

Alcoholic fly larvae need fix for learning

Research reveals that fly larvae fed alcohol-spiked food exhibit lasting changes in brain function, even after abstinence. This study provides insights into the neural mechanisms underlying ethanol dependence and its evolutionary roots.

Researchers find chemical 'switches' for neurodegenerative diseases

Researchers at the University of Montreal have identified a chemical chain that causes neurodegenerative diseases such as Huntington's disease, amyotrophic lateral sclerosis and dementia. Increasing another cell chemical called progranulin has been shown to reduce neuron death by combating mutant huntingtin protein accumulation.

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.

Brain waves encode rules for behavior

Researchers identified groups of neurons that encode specific behavioral rules by oscillating in synchrony with each other. The study found that the nature of conscious thought may be rhythmic, and that disruptions in brain waves could contribute to neurological disorders such as schizophrenia.

Faulty development of immature brain cells causes hydrocephalus

A recent study published in Nature Medicine has identified a new cause of hydrocephalus, a devastating neurological disorder affecting newborn babies. By bypassing a faulty cell signaling defect with a drug treatment, researchers were able to reduce the severity of the condition and improve patient outcomes.

A 3-D light switch for the brain

Scientists have developed a new tool that can deliver precise points of light to a 3-D section of living brain tissue, allowing for unprecedented control over individual neurons. This technology, called optogenetics, has the potential to treat conditions such as Parkinson's disease and epilepsy.

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Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Multiple sclerosis 'immune exchange' between brain and blood is uncovered

Researchers at UCSF discover an 'immune exchange' between the brain and blood that allows disease-causing B cells to move in and out of the brain, providing a potential key to unlocking better treatments and diagnostics. The study suggests that targeting specific B cells could lead to precision therapies tailored to each patient's needs.

How cells in the nose detect odors

Scientists at UC Riverside and Stanford University identified a molecular mechanism that blocks the expression of most olfactory receptor genes in flies, but allows for specific receptors to be expressed in response to carbon dioxide. This complex acts as a brake, releasing only when necessary to generate diverse sensors in the nose.

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

Scientists create 'endless supply' of myelin-forming cells

Researchers have created a plentiful supply of glial progenitor cells, which produce myelin, by mastering the chemical symphony that instructs them to divide. This breakthrough could lead to treatments for diseases like multiple sclerosis and cerebral palsy.