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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

Slow stem cell division may cause small brains

Researchers at Duke University found that delayed neural stem cells can cause premature differentiation into neurons and increased cell death, leading to smaller brain development. This study provides new insights into the mechanisms of microcephaly and its potential links to other neurodevelopmental disorders.

Genetic traffic signal orchestrates early embryonic development

Researchers have discovered that the DNA-binding protein Foxd3 acts as a genetic traffic signal, holding stem cells in readiness for transformation during early embryonic development. This discovery sheds light on how development works and has important implications for understanding developmental and adult diseases.

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.

Parkinson's disease: New insights into a traveling protein

Researchers found that alpha-synuclein spreading in Parkinson's disease is triggered by enhanced expression and trans-neuronal passage of monomeric and oligomeric forms, rather than prion-like seeding. This new insight sheds light on the pathogenesis of Parkinson's disease.

Mental synthesis experiment could teach us more about our imagination

A new experimental paradigm aims to investigate the neural mechanism behind human imagination by synchronizing groups of neurons, known as neuronal ensembles. By combining familiar images or concepts, the brain triggers increased firing rates and synchronization of activities in object-specific neurons.

Apple iPhone 17 Pro

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

Speeding up brain's waste disposal may slow down neurodegenerative diseases

A study published in Nature Medicine found that enhancing proteasome activity with drugs during early stages of Alzheimer's disease may prevent dementia and reduce brain damage. Researchers identified a potential therapeutic target, rolipram, which activates the proteasome system to clear out toxic proteins.

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.

Novel imaging technique captures beauty of metal-labeled neurons in 3-D

A novel spectral confocal microscopy technique enables the visualization of silver- and gold-labeled neurons in three dimensions, providing high-resolution images that can be archived for decades. This method retains image quality even with repeated light exposure, making it ideal for studying neurological disorders and cancer.

First serotonin neurons made from human stem cells

Researchers have successfully created human stem cell-derived serotonin neurons, a breakthrough that could lead to more effective drug treatments for depression and anxiety. The cells were generated using induced pluripotent stem cells from patients' skin cells.

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.

Research traces cause of organ dysfunction in Down syndrome

Scientists at Johns Hopkins University have uncovered the molecular cause of peripheral nervous system dysfunction in Down syndrome. A gene called RCAN1 appears to be overactive, hindering nerve growth and development, which may contribute to heart disease, diabetes, and immune disorders associated with the condition.

Healthy or sick? Tiny cell bubbles may hold the answer

Researchers have identified 335 genes that regulate the formation and function of extracellular vesicles (EVs), tiny bubbles released by cells. EVs can promote tissue repair or carry disease signals for cancer and neurodegenerative diseases like Alzheimer's. Understanding EV biology could lead to new therapeutic treatments.

Dartmouth-led team discovers new acoustic, vibrational duet in crickets

Researchers found a unique communication system in one group of crickets where females produce a vibrational signal after male calls, allowing them to locate each other. The study suggests this origin might be more common than previously thought and sheds light on the evolution of acoustic communication systems.

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.

First look at how astrocytes function in humans

Human astrocytes have unique genes and respond differently to neurotransmitters, particularly glutamate, suggesting improved detection of neuroactivity. The study's novel method allows researchers to compare astrocytes from healthy tissue and those affected by diseases such as glioblastoma and epilepsy.

Plant compound found in spices and herbs increases brain connections

Brazilian researchers have demonstrated that apigenin, a flavonoid found in parsley, thyme, chamomile, and red pepper, improves neuron formation and strengthens brain cell connections. The compound works by binding to estrogen receptors, affecting the development and function of the nervous system.

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.

How is a developing brain assembled?

Researchers developed a new 3D software to track the embryonic development and movement of neurons in Caenorhabditis elegans worms. The program creates a straightened image of the worm, allowing scientists to follow individual cells as they move and grow, revealing complex neuronal structures in unprecedented 3D clarity.

Gut microbes trigger fat loss in response to cold temperatures

Researchers found that exposure to cold temperatures alters the composition of intestinal bacteria in mice, leading to increased brown and beige fat formation and improved glucose metabolism. Transplanting these microbes into germ-free mice also triggered weight loss and improved metabolic health.

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.

Tracing a path toward neuronal cell death

A fruit fly model of Alexander disease has been developed to study astrocyte dysfunction and its role in neurodegeneration. Nitric oxide has been identified as a critical mediator in the process.

Lactate for brain energy

Researchers from the University of Zurich have confirmed the existence of a concentration gradient of lactate between astrocytes and neurons in the intact mouse brain. The study provides new evidence for an exchange of lactate between different brain cells, supporting a 20-year-old hypothesis on brain energy metabolism.

Sensor sees nerve action as it happens

Researchers at Duke University have created a technique for monitoring neurons in action with a time resolution of about 0.2 milliseconds, allowing for the first holistic view of neural activity in mammalian brains. This breakthrough enables scientists to study how brain activity translates into specific thoughts and behaviors.

Infertile worms resist infection-induced neurodegeneration

Researchers have found that infertile animals appear to be protected from neurodegeneration in a study using C. elegans worms. The study, which appears online now, showed that infected worms display hallmarks of neurodegeneration similar to those seen in humans, but infertile animals resist this process.

Hydra can modify its genetic program

Researchers at the University of Geneva discovered that Hydra cells can modify their genetic program by overexpressing genes involved in nervous functions. This study sheds light on cellular plasticity, a phenomenon that could influence research into regenerative medicine and neurodegenerative diseases.

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.

Animal study shows how exercise may energize brain cell function

Researchers found that mice exercising on a wheel increased SIRT3 levels, protecting against neurodegeneration and degeneration. Bolstering mitochondrial function with gene therapy technology also offered protection against stress and age-related cognitive decline.

Improved tool allows live imaging of neural spikes

Scientists can now observe neurons' electrical activity in real-time using a highly sensitive molecule fused with a fluorescent protein. This breakthrough allows researchers to study brain processing in living animals, offering unprecedented insights into cell-to-cell communication.

'Rat vision' may give humans best sight of all

Researchers found that human brains have a subset of cells that fire in response to inputs from both eyes, similar to those in rodents. This discovery suggests that humans have the best possible visual system, with primitive pathways allowing for quick spotting of danger and complex behaviors.

Nikon Monarch 5 8x42 Binoculars

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

Bacterial protein can help convert stem cells into neurons

A study found that combining bacterial protein Skp with small molecules can convert pluripotent cells into functional neurons. The research used Sox2 and Skp to initiate differentiation, followed by the use of neurodazine to direct lineage-specific commitment.

Master switch for brain development

Researchers at the Institute of Molecular Biology in Mainz have identified a key gene that drives brain cell development, revealing a complex regulatory mechanism. The discovery has significant implications for understanding neurodegenerative disorders and developing new treatments.

Navy researchers recruit luminescent nanoparticles to image brain function

Researchers at the US Naval Research Laboratory have developed luminescent nanoparticles to image brain function, enabling real-time mapping of neural connections. The nanoparticles, specifically quantum dots, can track action potential changes with high fidelity and are ideal for interfacing with neurons.

Alzheimer's research: New findings

Researchers discovered that the protein APP forms spherical structures in the nucleus, affecting gene activity and neurotransmitter modulation. This finding may lead to new therapies for Alzheimer's disease by inhibiting neurotransmitter activity.

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.

Scientists sniff out female mouse scents that make males frisky

Researchers identified two chemical scents in female mouse urine that arouse sexual behavior in males, providing insight into mouse pheromones controlling behavior. The chemicals, waste products of steroid metabolism, were found to mimic the increased interest shown by males towards female urine.

Using microfluidic devices to sort stem cells

Researchers at Northwestern University have developed a microfluidic device to sort neural stem cell populations, making them easier to study. The device uses inertial forces to isolate single stem cells, reducing stress on the cells and preserving their multipotency.

Can scientists agree on a definition of curiosity?

Researchers propose a working definition of curiosity as a drive state for information, which can be observed in organisms as simple as nematode worms. They also discuss the benefits and drawbacks of curiosity, including its role in learning and decision-making, and how it relates to attentional disorders.

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.

$5 million for international neuroscience 'dream team'

A team of international neuroscientists and engineers has been awarded a $5 million grant to unravel the mysteries of the brain and develop new technologies for better healthcare. The project aims to stimulate and sense brain activity at the single-neuron level, reconstructing neural circuits with computer simulations.

Engineers design magnetic cell sensors

Researchers have created genetically encoded magnetic protein nanoparticles that can be produced within cells, allowing for non-invasive tracking and monitoring of cell signals. This technology has the potential to observe communication between neurons, activation of immune cells, and stem cell differentiation, among other phenomena.

Possible new explanation for ALS

Researchers discovered a new way in which ALS kills nerve cells by disrupting protein synthesis, highlighting the importance of RNA-binding proteins in disease progression. The study provides a potential key to treating both ALS and dementia.

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.

New microscope helps scientists see the big picture

The IsoView light sheet microscope produces high-resolution images of entire organisms in all three dimensions at sub-second temporal resolution and sub-cellular spatial resolution. This breakthrough enables scientists to monitor brain activity, track cell movement, and study developmental processes with unprecedented clarity.

Neurons that regulate sleep stages revealed

A new study identifies neurons that inhibit REM sleep and induce non-REM sleep in mice, revealing a complex relationship between the two stages of sleep. The discovery sheds light on the brain's mechanism for regulating sleep patterns.

New insights into REM sleep crack an enduring mystery

Researchers identified a neural circuit in the brain that regulates REM sleep and show it controls NREM sleep physiology. The study also found that REM sleep interacts with NREM sleep in a hierarchy, affecting slow wave activity.

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.

The power of 2 may help explain brain design

Dr. Joe Z. Tsien's Theory of Connectivity proposes that the brain uses the power of two to create a prewired framework for connecting neurons, enabling knowledge and flexibility. This equation provides a way to wire brain cells in such a way to turn infinite possibilities into organized knowledge.

CWRU biologists find keys to driving a cockroach

Researchers at CWRU identified key neurons in cockroach brain that control movement, including speed and direction. By stimulating these neurons, scientists can replicate the insect's movements, shedding light on how insects navigate and providing insights into robotic navigation systems.

New insights into REM sleep crack an enduring mystery

Researchers identify a neural circuit that regulates REM sleep and show that it controls the physiology of non-REM (NREM) sleep. They also found that REM sleep plays a crucial role in the generation of slow waves during NREM sleep.

Cellular damage control system helps plants tough it out

Plants have developed a unique mechanism to selectively degrade damaged chloroplasts, allowing them to conserve energy and thrive in challenging environments. This discovery could lead to the development of stronger crops with improved yield and resistance to stressors.

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.

Researchers learn how to steer the heart -- with light

A team of researchers from Oxford and Stony Brook universities has developed a way to precisely control electrical waves in heart cells using light. This allows for fine control over wave speed, direction, and orientation, enabling unprecedented direct control of organ-level function without manipulating individual cells.

Nuclear transport problems linked to ALS and FTD

Three NIH-funded studies found that a genetic mutation linked to ALS and FTD impairs nuclear transport in neurons, leading to defects in gene expression. Researchers suggest therapies targeting nucleocytoplasmic transport may be effective in treating these diseases.

Extra brain cells make males remember sex

A pair of neurons found in the brains of male nematode worms, called 'mystery cells of the male' or 'MCMs', are responsible for sex-based differences in learning and behavior. These MCMs create behavioral differences between males and females by changing a brain circuit common to both sexes.

Celestron NexStar 8SE Computerized Telescope

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

Researchers learn how to grow old brain cells

Researchers have developed a new technique to create brain cells directly from skin samples, retaining age-related signatures. This breakthrough enables scientists to study the effects of aging on the brain without relying on animal models or stem cell reprogramming.