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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

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.

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.

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.

Multiple testing for infectious diseases key to cutting onward transmission

A new study found that routine testing for multiple infectious diseases among migrants can identify key infections earlier, improving health outcomes and reducing onward transmission. The Leicester screening programme, which tested 4004 migrant patients, revealed new diagnoses of TB, Hepatitis B and C, and HIV.

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.

Fluke 87V Industrial Digital Multimeter

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

Hepatitis B: new rapid diagnostic test to halt mother-to-child transmission

A new rapid diagnostic test can accurately identify pregnant women with high levels of the hepatitis B virus, allowing for early detection and intervention. This breakthrough test could have a significant impact on hepatitis B management in low- and middle-income countries, reducing the spread of the infection.

Interventions identified to eliminate transmission of hepatitis B in Africa

A large-scale analysis sheds light on the critical steps needed to combat the vertical transmission of chronic hepatitis B virus (HBV) in Africa. The study estimates that hepatitis B vertical transmission could be eliminated in Africa with increased coverage of birth dose vaccine and maternal antiviral therapy.

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.

Apple iPhone 17 Pro

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

Updated Hep B vaccine more effective for people with HIV

A new hepatitis B vaccine, Heplisav-B, has been shown to be more effective than an older vaccine type in inducing a protective antibody response among people living with HIV who didn't respond to prior vaccination. The study found that up to 99.4% of subjects received the new vaccine showed protective levels of antibodies.

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.

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.

Hepatitis B: "Sleep timer" for immune cells discovered

A team of researchers has discovered a mechanism by which the liver's immune cells are suppressed in chronic hepatitis B, leading to organ damage. The 'sleep timer' function allows immune cells to weaken their activity over time, preventing them from proliferating excessively and causing further damage.

Researchers may have found an Achilles heel for Hepatitis B

Hepatitis B virus (HBV) infects about 296 million people and kills 1 million annually. Researchers from Rockefeller University have revealed mechanisms that may lead to new treatments by targeting the pol protein's unique properties, including a 'tethering' mechanism that allows it to bind to specific RNAs.

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.

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.

The relationship between viral replication and the severity of hepatic necroinflammatory damage changed before HBeAg loss in patients with chronic hepatitis B virus infection

Studies found a negative relationship between HBV replication and liver inflammation in HBeAg-positive patients with high viral DNA levels, which shifted to positive relationships for those with low DNA levels or HBeAg-negative status. This interaction suggests a complex relationship between viral replication and liver damage progression.

Could novel immune cell therapy combat hepatitis B infections?

Researchers identify a promising strategy for combating hepatitis B virus (HBV) by boosting the effects of immune cells called stem cell memory T cells (TSCMs). In a mouse model, introducing TSCMs from patients into mice resulted in the elimination of HBV-infected liver cells.

Simulating tiny invaders

Scientists used Delta's GPU-based architecture to study the life cycle of the Hepatitis B virus, revealing how it binds human proteins called importins. The research provides a platform for developing inhibitors that could block this interaction and prevent the virus from accessing the nucleus.

Celestron NexStar 8SE Computerized Telescope

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

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.

New tool to study hepatitis B could open the door to a cure

Researchers have developed an approach to studying HBV in the lab, allowing for a sharper view of its behaviors and characteristics during its life cycle. This breakthrough could lead to improved drug treatments and potentially even a cure for hepatitis B.

How to achieve a functional cure for chronic hepatitis B

Researchers found that after 96 weeks, some patients achieved loss of detectable HBsAg and reduced liver inflammation levels, indicating functional cure. The study suggests that discontinuing long-term antiviral therapy may be more effective than continuing it for certain patients.

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.

How to achieve a functional cure for chronic hepatitis B

A study published in Journal of Hepatology found that some patients with chronic hepatitis B can achieve sustained immune control by discontinuing antiviral therapy after four years. This suggests a potential cure for the disease, which affects an estimated 350 million people worldwide.

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 standards to quantify hepatitis B virus reservoirs in liver cells

A new set of guidelines has been established to quantify hepatitis B virus DNA in infected liver cells, crucial for preclinical and clinical evaluation of therapeutic strategies. The standards were developed based on a study that identified the importance of sample type-tailored methods for accurate measurement.