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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

Asbestos mortality: A Canadian export

Asbestos export continues in Canada, violating its own limitations and the WHO's recommendation to end chrysotile mining. The practice contributes significantly to the global health crisis caused by asbestos-related diseases.

Who should be the next executive director of UNAIDS?

The Lancet Editorial recommends four top candidates - Tim Barnett, Stefano Bertozzi, Michel Sidibé and Debrework Zewdie - to succeed outgoing Executive Director Peter Piot. The selected candidates will be evaluated on their vision and plans for the new role.

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.

'Healthy' individuals may be at risk for heart disease

Researchers at Wake Forest University Baptist Medical Center found a correlation between non-subcutaneous fat and calcified plaque in the arteries, increasing cardiovascular event risk. The study suggests targeting non-subcutaneous fat may be key to preventing heart disease.

Intellectual work induces excessive calorie intake

Research finds that intellectual work leads to a significant increase in calorie intake, with students consuming up to 253 more calories after mentally demanding tasks. The study suggests that fluctuations in glucose and insulin levels may trigger food overcompensation.

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.

Depression common among Rwandan youth who head households

A study in Rwanda found that nearly half of orphaned youth aged 12-24 who head households meet criteria for depression. The combined effects of the genocide and HIV epidemic have left many orphans vulnerable to poverty, social marginalization, and poor health.

Pitt receives $10 million from Gates Foundation

The University of Pittsburgh Graduate School of Public Health has received a $10 million grant from the Bill & Melinda Gates Foundation to create computer simulations of epidemics, evaluating new vaccine technologies and modes of delivery. The project will focus on diseases affecting millions of people globally.

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.

HIV/AIDS in Latin America and the Caribbean

The HIV/AIDS epidemic affects nearly 2 million people in Latin America and the Caribbean, with most transmission through unprotected sex. The region faces unique challenges due to socio-economic disparities, homophobia, and lack of access to healthcare and education.

Instances of mass die-offs in wild lions precipitated by extreme climate change

Research finds that extreme climate conditions can create conditions for diseases normally tolerated singly to converge and cause mass die-offs in wildlife. In a study on Serengeti lions, researchers linked deadly outbreaks of canine distemper virus to debilitated prey populations and heavy tick infestations after droughts and floods.

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.

Higher temperatures helped new strain of West Nile virus spread

A new study reveals that warmer temperatures significantly accelerated the spread of a new strain of West Nile virus across North America. The virus displaced the older strain and led to two of the largest epidemics on record, with over 270 deaths in both 2002 and 2003.

The global challenge of diabetes

The current figure of 246 million adults worldwide with diabetes is expected to expand rapidly, with 50% of deaths attributed to cardiovascular disease. The Lancet Editorial emphasizes that much of the morbidity and mortality can be prevented through targeted prevention strategies.

Apple iPhone 17 Pro

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

Study documents obesity and its association with heart risk

A recent study published in Archives of Internal Medicine has documented the association between obesity and increased risk of heart disease. The research found significant ethnic disparities in weight and cardiovascular health, with non-Hispanic white participants showing a higher prevalence of overweight and obesity.

Scientists discover the travel patterns of seasonal flu

Researchers analyzed 13,000 virus samples from 2002 to 2007 to understand migration patterns of seasonal flu. They found that East and Southeast Asia serves as a source for influenza A (H3N2) viruses globally, with new strains emerging in the region before spreading to other parts of the world.

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.

Climate and cholera

Cholera outbreaks can be predicted using satellite sensors, monitoring sea surface temperature and height. This technology offers a pre-emptive approach to addressing epidemics in developing countries affected by climate change.

London's HIV epidemic was driven by clusters of sexual contacts

The rapid growth of the HIV/AIDS epidemic in London during the late 1990s was driven by transmission within clusters of sexual contacts, with individuals frequently passing the virus to others after becoming infected. Phylogenetic analysis revealed six large clusters and many smaller ones based on genetic relatedness of HIV viruses.

Dry season brings on measles in sub-Saharan Africa

Researchers found a strong seasonal fluctuation of measles transmission rate in Niamey, Niger, which can help predict annual outbreaks. Vaccinating at least 95% of children with two doses of the measles vaccine is crucial to controlling the disease, particularly in areas with high birth rates and limited access to healthcare.

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.

Number of Russian women smokers has doubled since Soviet collapse

Since the Soviet collapse, Russian women's smoking rates have more than doubled, with men's rates also increasing. The researchers blame privatization of the tobacco industry and industry lobbying for this alarming trend. The study used data from over 7,000 individuals, showing that the least educated are disproportionately affected.

10 myths and 1 truth about generalized HIV

Despite substantial progress against AIDS, the generalized HIV epidemic continues to rage on, driven by concurrent partnerships. Interventions such as abstinence and condom use have limited effectiveness in containing the spread of the disease, highlighting the need for a more nuanced approach to prevention.

SARS: a model disease

A new predictive model of disease spread has been developed using actual travel and census data from over 3,000 urban areas in 220 countries. The model provides predictions of outbreak likelihood and potential spread, with simulations that fit the actual SARS virus pattern in 2002.

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.

New genetic lineage of Ebola virus discovered in great apes

Scientists have identified a new genetic lineage of the Ebola virus in great apes, which contradicts previous assumptions about its evolutionary development. This discovery suggests that wild strains of Ebolavirus can exchange genetic material through recombination processes.

Time to supersize control efforts for obesity

The UK faces a growing obesity crisis with alarming statistics showing a 30-50% increase in obesity rates over the past decade. Experts call for a comprehensive approach to tackle the epidemic, including promoting healthy eating and exercise, and investing in meaningful interventions.

New model predicts more virulent microbes

A new mathematical model explains how persistent microbes co-exist with humans, suggesting an increase in virulent organisms as populations grow. The model proposes that larger populations select for more virulent microbes, leading to potentially severe epidemics.

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.

The reservoir of Marburg virus identified in a species of fruit bat

Scientists have found Marburg virus in Egyptian rousette fruit bats, a non-symptom developing carrier species that likely transmits the virus to humans. The discovery reveals this bat as Africa's natural reservoir and highlights the need for public health measures to prevent future outbreaks.

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.

Diagnosing obesity prompts action, report Mayo Clinic physicians

Mayo Clinic physicians found that obese patients who received an obesity diagnosis were more likely to form a weight loss management plan than those without a diagnosis. The study highlights the importance of proactive discussion between physicians and patients about obesity, a risk factor for diabetes and cardiovascular diseases.

CeaseFire receives $1.7 million grant to expand outside of Illinois

The Chicago Project for Violence Prevention has received a $1.7 million grant to expand CeaseFire, a public health and epidemic control approach, to cities outside of Illinois. The program will be implemented in Baltimore, Cincinnati, and Newark, N.J., and aims to reduce shootings and killings through community mobilization and outreach.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Meningitis: effectiveness of preventive vaccination demonstrated

Researchers found that the polysaccharide vaccine can reduce meningitis cases by up to 72% in subsequent epidemics, making it an ideal tool for preventive vaccination strategy. A more cost-effective conjugated vaccine is also being developed to improve access to vaccines in African countries.

Map predicting spread of avian flu

A model predicting the probability of infection from one farm to another has been developed by Gert-Jan Boender and colleagues, highlighting two poultry-dense areas in the Netherlands where epidemic spread is possible. The authors conclude that local control measures are unlikely to halt an unfolding epidemic in these regions.

Syphilis spreading rapidly in China

A syphilis epidemic is sweeping China, driven by the re-emergence of sex work and changing sexual practices. The country's national surveillance system has reported a significant increase in syphilis cases, with congenital syphilis rates rising by 71% between 1991 and 2005.

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.

New HIV statistics indicate increasing toll of AIDS on African American community

The African-American community is facing a disproportionate impact of HIV/AIDS, with over half of all new diagnoses among this group. The National Minority AIDS Council recommends five policy solutions to address this disparity, including eliminating stigma against black MSM and reducing the role of injection drug use in sustaining the...

Maximizing womens' health benefits when resources are limited

A study by Jane Kim and colleagues suggests that introducing a once-in-a-lifetime screen for cervical cancer can provide opportunities to offer additional health checks, such as depression treatment and anemia screening. The optimal package of health services balances monetary limitations and personnel shortages, maximizing health bene...

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.

Type 2 diabetes epidemic in Asia

The proportion of people with type 2 diabetes in Asia has increased rapidly, with younger age groups developing the condition and suffering longer from chronic complications. The region's healthcare systems are under threat as a result.

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.

UGA study explains peaks and troughs of dengue epidemics

Researchers at the University of Georgia found that cross-immunity between dengue strains explains the timing of epidemics, with an average three-year cycle and seasonal component. The study provides a new framework for creating models to predict dengue outbreaks in various regions.

Incubation period for human BSE infection could exceed 50 years

Researchers studied kuru, a prion disease epidemic caused by cannibalism, and found minimum incubation periods ranging from 34 to 41 years. The study suggests BSE infection incubation period could be even longer due to species-barrier effects and genetic variation associated with extended incubation periods.

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.

Strong governmental leadership needed to tackle obesity epidemic

The Lancet emphasizes the need for strong governmental leadership to address the obesity epidemic, with a focus on production of cheap healthy foods, urban planning, education, and a global code to promote only healthy food and drink. Effective policy changes are crucial to reduce obesity and curb the epidemic.

Malaria early-warning system shows promise in tackling epidemics

Researchers developed an early-warning system that uses population vulnerability, rainfall, and health surveillance to predict changes in seasonal disease patterns. The system provides health service managers with warnings of changes in epidemic risk five months before the peak malaria season.