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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

Energy demands limit our brains' information processing capacity

A new UCL study using brain imaging found that paying attention increases energy use in the brain, while diverting energy from unattended tasks. The brain has a hard limit on energy supply, which can lead to feelings of overwhelm and neglect of important information.

Ultra-low power brain implants find meaningful signal in grey matter noise

The team discovered a technique to compress brain signals, focusing on neural activity spikes called threshold crossing rate or TCR, which requires less data while still being able to predict firing neurons. By listening to a specific feature of neuron data called spiking-band power, the SBP method is highly accurate and takes in one-t...

Apple iPhone 17 Pro

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

Cells react differently to genomic imprinting

Researchers used the MADM technique to investigate how cells respond to changes in genomic imprinting. They found that cells activate certain gene groups involved in cell death, growth, and synapse development, particularly in astrocytes.

What happens around an Alzheimer plaque?

A research team mapped molecular changes in cells near amyloid plaques, finding two co-expression networks that respond to amyloid beta deposition. These networks, expressed by astroglia, microglia, and oligodendrocytes, show both protective and damaging effects on the brain, highlighting the complexity of Alzheimer's disease.

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.

New role for white blood cells in the developing brain

Researchers discovered a population of brain-resident immune cells that transfer information from the body to the brain environment. The presence of these cells is crucial for normal brain development in mice, and their absence affects behavior and brain development.

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.

A mechanical way to stimulate neurons

Scientists have created magnetic nanodiscs that can detect and respond to mechanical forces, offering a new method for studying neural responses and potentially leading to new therapeutic treatments. The discovery could provide a more precise and non-invasive alternative to existing neurostimulation techniques.

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.

How to map brain connections using DNA barcodes

Researchers developed a new method to map brain-wide connections using DNA barcodes, reducing costs compared to traditional methods. The approach generates virtually infinite labels to distinguish individual cells, enabling the creation of accurate anatomical maps.

Nanoelectronics learn the same way as the human brain

Scientists at TU Dresden and HZDR successfully imitated brain neuron functioning using semiconductor materials. This development enables more efficient and intelligent computing, with potential applications in areas such as robotics and image recognition.

Turning off 'junk DNA' may free stem cells to become neurons

A new NIH study suggests that deactivating certain genes in the human genome may play a role in controlling the differentiation of stem cells into neurons. The research found that these genes, which were once thought to be inactive 'junk DNA', may help regulate the maturation process of stem cells, leading to improved understanding of ...

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.

Machine learning helps grow artificial organs

Researchers developed a neural network capable of recognizing retinal tissues during differentiation without modifying cells. The method allows for growing retinal tissue for developing cell replacement therapies to treat blindness and conducting research into new drugs.

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Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

New drug reduces stroke damage in mice

Researchers at the University of Pittsburgh Brain Institute identified a novel drug that can protect the brain during and after a stroke. The study shows that injured neurons can remain viable if prevented from following biochemical pathways leading to cell death.

Why memory-forming neurons are vulnerable to Alzheimer's

A new study sheds light on the molecular factors that render entorhinal brain cells uniquely sensitive to degeneration. Researchers found that a suite of genes is likely involved in making these neurons easy targets for degeneration, with PTBP1 playing a major role.

Brain receptor pulls open electrical gate like a puppet master

Tracking each atom in the NMDA receptor has revealed how it transmits and inhibits neural signals. The discovery could lead to better treatments for Alzheimer's disease, depression, epilepsy, stroke, or schizophrenia by controlling the receptor's activity.

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

Seattle researchers team up to build hi-res brain map of Alzheimer's Disease

Researchers at the Allen Institute in Seattle are building a high-resolution map of Alzheimer's disease by comparing brain cells across patients with different stages of the disease. By identifying specific neurons and cell types affected by the progressive disorder, they aim to find new drug targets and potential therapies.

New drug pathway linked with tuberous sclerosis

Scientists discovered a cell signaling pathway that could lead to new treatments for tuberous sclerosis complex, a neurological disorder causing non-cancerous tumors and epilepsy. The heat shock protein cascade restored normal mTOR activity in TSC cells, offering potential drug targets.

Star-shaped brain cells may play a critical role in glaucoma

A new study in rodents suggests that star-shaped brain cells called astrocytes may be responsible for killing nerve cells in glaucoma. The study found that increased pressure drove astrocytes to release toxins that killed neurons, highlighting a potential target for treating the disease.

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

How chandelier cells light up the brain

Researchers have made significant breakthroughs in understanding chandelier cells, which are key regulators of brain signaling. Abnormalities in these cells have been linked to neurodevelopmental disorders, and studying them may provide insights into disease mechanisms.

Brothers in arms: The brain and its blood vessels

Blood vessels in the brain have evolved to form a protective barrier, but recent research shows they can also sense the metabolic state of neighboring neural cells. This allows them to respond to changes in nutrient availability and prevent disease states such as Alzheimer's and vascular dementia.

Hibernation in mice: Are humans next?

Researchers at the University of Tsukuba and RIKEN in Japan have identified specific cells in the mouse brain that can trigger a hibernation-like state when activated. This discovery has significant implications for potential human hibernation applications, including medical uses such as emergency transport or critical care situations.

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Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Researchers model human stem cells to identify degeneration in glaucoma

Using human stem cell models, researchers identified deficits within cells damaged by glaucoma and found that correcting genetic mutations could slow disease progression. They also discovered dysfunction in autophagy, a process that removes damaged cells, which correlated with neurodegeneration.

Appetite can be increased by cells in the brain

Researchers at University of Warwick discover that tanycytes, a type of glial cell in the brain, can increase appetite by delivering signals to neurons. The study found that stimulating tanycytes leads to an increase in food intake due to the activation of two pathways involved in feeding behavior.

Gut research delves deeper into obesity problems

A recent study published in Neurogastroenterology & Motility found that high-fat diets change the nutrient-sensing capacity of Enterochromaffin (EC) cells in mice, leading to increased serotonin levels and potential implications for obesity and type 2 diabetes

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.

Why developing nerve cells can take a wrong turn

Researchers found that the loss of UBE2K enzyme silences key genes for neuronal differentiation, leading to impaired development of nerve cells. The study provides a potential link between epigenetic regulation and neurodevelopmental diseases.

A remote control for neurons

Researchers at Carnegie Mellon University develop a novel material called NT-3DFG, which enables remote optical stimulation of neurons without genetic modification or cellular stress. This breakthrough has significant implications for understanding cell interactions and developing new therapies that harness the human body's own cells.

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.

How toxic protein spreads in Alzheimer's disease

Researchers at Lund University and McGill University found that toxic tau protein spreads in the human brain via connected neurons, facilitated by beta-amyloid. The spread of toxic tau leads to widespread neuronal death and eventual dementia.

Who were the Canaanites? New insight from 73 ancient genomes

Researchers analyzed 73 ancient genomes and found that the Canaanites descended from a mixture of local Neolithic populations and Iranian/Caucasus-related ancestry. This study sheds light on the cultural and genetic similarity among city-states, and how migration from the northeast may have influenced the region's culture.

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.

Mapping the neurons of the rat heart in 3D

A team of researchers has developed a comprehensive 3D map of the rat heart's intrinsic cardiac nervous system, allowing for precise study of its structure and function. This breakthrough could lead to better treatments for severe heart disease and advancements in bioelectronic medicine.

Scientists identify gene linked to thinness that may help resist weight gain

Researchers discover genetic variant ALK in thin individuals that helps resist weight gain and obesity, with implications for developing therapeutics targeting this gene. The study found that deleting the ALK gene results in thinner flies and mice, highlighting its potential role in regulating energy expenditure.

Elucidating the mechanism of a light-driven sodium pump

The study successfully captured images of the sodium pump in action, documenting molecular changes necessary for sodium transport. The findings have implications for advancing optogenetics and improving experiments in neurobiology.

Deciphering the fine neuroendocrine regulatory system during development

A study by University of Tsukuba researchers has identified a key molecule Crz that regulates body size adjustment during the larval stage in Drosophila. The study found that Crz neurons physically contact PTTH-producing neurons, controlling basal ecdysteroid biosynthesis and enabling proper development.

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.

Scientists find brain center that 'profoundly' shuts down pain

Researchers at Duke University found a single brain area, the CeAga neurons, which can profoundly control pain by turning off dozens of other pain-promotion centers. By activating this center, they can alleviate pain behaviors in mice, suggesting potential future treatments for chronic pain.

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.

Lighting the path for cells

Researchers at ETH Zurich have developed a new method to distribute bioactive molecules in three-dimensional space, allowing them to guide the growth of nerve fibers and other biological processes. This innovation has potential benefits for medicine, including improving recovery from neural injuries.

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.

Exploring why some COVID-19 patients lose their sense of smell

Researchers discovered that older mice made more of the two proteins in nasal cells than younger ones, explaining why older people are more susceptible to COVID-19. The study also found that sustentacular cells could potentially be infected by SARS-CoV-2, providing a route to infect the brain.

Who takes the temperature in our cells?

Scientists discovered a critical protein, Ded1p, that changes its structure in response to heat stress, triggering the production of stress-protective proteins. This mechanism may help organisms adapt to temperature fluctuations and has implications for understanding neurodegenerative diseases.

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.