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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

How immune cells “sniff out” pathogens

Researchers from the University of Bonn have developed a new method to study immune receptors using a label-free biosensor assay. This approach allows for the detection of specific chemical signals that activate Toll-like receptors (TLRs), which are found on the surface of immune cells and play a crucial role in detecting infections. T...

AAV vectors trigger innate immune pathways

Researchers describe redundant innate immune pathways triggered by AAV vectors, including sensing of viral genome and cytoplasmic DNA sensors. The study highlights the need to understand complex biologic mechanisms underlying adverse reactions to AAV vectors in human gene therapy trials.

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.

Bisphenol A and asthma in mice

Researchers found that bisphenol A (BPA) inactivates microbial lipopolysaccharides (LPS), a key trigger for allergic asthma. This disruption increases susceptibility to asthma in mice, highlighting a potential link between BPA exposure and immune 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.

Medication that protects brain tissue linked to improved stroke survival

A new neuroprotectant medication called ApTOLL has been shown to improve survival and reduce long-term disability among patients with stroke. The study found that ApTOLL, when used in conjunction with standard treatments, reduced death and brain damage, suggesting a promising new approach to treating stroke.

Brain changes: The lingering effects of COVID-19

Research shows COVID-19 can cause long-term changes to brain function through inflammation, affecting mood, concentration, and cognitive abilities in both young and old patients. Millions are potentially affected by this condition, also known as Long COVID.

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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.

How immune cells switch to attack mode

Macrophages change their metabolism drastically after coming into contact with bacteria, triggering an inflammatory response. This process involves the activation of Toll-like receptors, which leads to histone acetylation and changes in gene expression.

Lipid that aids normal skin turnover may help psoriasis

Researchers have discovered a lipid called phosphatidylglycerol (PG) that may help restore healthy skin turnover in people with psoriasis. PG reduced inflammation and raised skin lesions when applied topically to a mouse model of psoriasis, suggesting it could be a new treatment option.

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GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Scientists work to dissolve the NETs that worsen TBI damage

Researchers have found evidence that dissolving NETs can reduce swelling and improve blood flow after traumatic brain injuries. A drug called DNase, which is currently used to thin out lung mucus in cystic fibrosis, appears to dissolve NETs and has shown promise in reducing swelling and improving recovery.

Autoimmune disease discovery could spark new treatments

Researchers have discovered a potent drug-like compound that inhibits Toll-like receptor 8, a key player in autoimmune diseases. The compound, CU-CPT8m, exerts potent anti-inflammatory effects on tissue, offering a potential breakthrough for treating rheumatoid arthritis and other autoimmune conditions.

Herpesviruses undercover

Scientists at HZI have shown that herpesviruses like KSHV and MHV68 modulate the TLR-induced proinflammatory cytokine response, allowing them to remain within the body for a long time. The researchers discovered that the virus actively prevents activation of the innate immune system through Toll-like receptors.

The pathway to asthma winds through toll-like receptor 4

Researchers found that toll-like receptor 4 is activated by fibrinogen cleavage products, which are generated by proteinase enzymes. This activation leads to the production of pro-inflammatory cytokines and the recruitment of immune cells to the airways, resulting in asthma-like symptoms.

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

Rat hippocampal neurons: An executor of neuroinflammation

Recent research reveals that Toll-like receptor 4 expressed in cerebral cortical neurons stimulates inflammatory pathways, suggesting that neurons may be both passive victims and activators of neuroinflammation. Lipopolysaccharide triggers the Toll-like receptor 4/nuclear factor-κB pathway, leading to neuroinflammatory responses.

Toll-like receptors play role in brain damage in newborns

New research reveals that Toll-like receptors play a major role in brain damage risk for newborns, contributing to conditions like cerebral palsy and epilepsy. The discovery could lead to more effective treatment strategies, such as blocking special TLRs to reduce brain damage following hypoxia.

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Hopkins-led team solves failed vaccine mystery

Researchers discovered that a 1966 RSV vaccine's defective antibodies failed to bind to the real virus, leading to severe disease. New findings could lead to the development of safer and more effective vaccines for RSV and other respiratory viruses.

How do Lactobacilli treat Helicobacter pylori-related diseases?

Research shows Lactobacillus bulgaricus can prevent H. pylori lipopolysaccharide-activated TLR4 pathway, reducing IL-8 production and promoting gastric epithelial cell survival. The study suggests a novel relationship between probiotics and pathogenic bacteria in regulating inflammatory responses.

Arteries from distinct regions of the body have unique immune functions

Researchers at Emory University School of Medicine discovered that human arteries play distinct roles in the immune system depending on their anatomical location. Different types of arterial samples had varying Toll-like receptor gene expressions, which may explain why certain vascular diseases affect specific parts of the body.

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Researchers learn why immune system's watch dogs howl

New research led by Brown University immunologist Wen-Ming Chu has uncovered a direct interaction between high-mobility group box 1 protein and toll-like receptor 9, triggering the immune response. The discovery could lead to the development of new vaccines and treatments for diseases such as cancer, asthma, and allergies.

Toll-free road from sepsis

A new study published in the Journal of Clinical Investigation has identified an antagonistic antibody that can prevent sepsis by blocking toll-like receptor 2-driven shock-like syndromes. The discovery offers new hope for combating this deadly condition.