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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

Treating HIV earlier to decrease the risk of death

A new North American study shows that starting antiretroviral treatment earlier significantly decreases the risk of death, with a reduction of up to 94% in patients who begin treatment before their CD4+ cell count falls below 500. This finding challenges traditional guidelines and may lead to changes in medical practice.

Early administration of antiretroviral therapy can improve survival

A study published in The Lancet found that early antiretroviral treatment can significantly improve survival rates among HIV-positive patients. By initiating treatment when CD4 cell counts fall between 351 and 450 cells/µL, the risk of AIDS development and death was reduced by 28%.

Study shows that HIV antiretroviral treatment should start earlier

A new study analyzing over 45,000 people with HIV in Europe and North America found that starting combination antiretroviral therapy (cART) at a minimum CD4-cell count of 350 cells per µL reduces AIDS-related events and death rates. The findings challenge current guidelines recommending cART initiation at a lower threshold.

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.

More compelling evidence on why earlier HIV treatment lengthens survival

A new study published in the New England Journal of Medicine found that starting antiretroviral treatment earlier can significantly increase survival rates among asymptomatic HIV patients. The research, led by Dr. Mari Kitahata at the University of Washington, analyzed data from over 17,500 patients and showed that delaying treatment u...

Brazil plays key role in improving access to medicines for all

A new paper by academics from Scotland and the US explores Brazil's role in changing global AIDS policy and promoting widespread access to AIDS treatment. Brazil's successful HIV/AIDS treatment program is considered a model for other developing countries.

Adolescents are undertreated for addiction

A new study found that only about 10 percent of adolescents needing help for substance abuse problems enter treatment due to a lack of adolescent-only services. The study also revealed that few high-quality programs exist for teens, and those that do often have limitations.

Celestron NexStar 8SE Computerized Telescope

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

Apple iPhone 17 Pro

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

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.

Embargoed clinical news from Annals of Internal Medicine

Recent trials show intermittent HIV treatment increases risk of infections and death. A large-scale survey links 'burnout' to suicidal thoughts in med students, but finds it reversible. Whistleblower-initiated legal action against Medicare fraud has increased significantly since the 1990s.

Certain HIV treatment less effective when used with anti-TB therapy

A study published in JAMA Network found that patients receiving rifampicin-based anti-tuberculosis therapy are more likely to experience virological failure when starting nevirapine-based antiretroviral therapy. In contrast, efavirenz-based ART was associated with similar virological suppression rates regardless of tuberculosis status.

International panel updates treatment guidelines for HIV infection

The International AIDS Society–USA Panel updated treatment guidelines to reflect recent data on antiretroviral therapy. The new guidelines recommend starting therapy before CD4 cell count declines to less than 350/μL, with individualized regimens tailored to patient needs.

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.

UCLA researcher commissions special issue of AIDS journal

A special supplement in the AIDS journal offers concrete recommendations for addressing social and economic issues fueling HIV, including building a diverse group of leaders and integrating treatment programs. The edition outlines actionable goals and calls for accountability to combat the epidemic more efficiently.

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.

Researchers urge integrating TB into HIV care

Researchers propose integrating TB prevention and treatment into HIV care to address the major cause of mortality among HIV patients. The authors recommend intensified TB case finding, preventive isoniazid therapy for non-TB infected HIV patients, and earlier provision of antiretroviral therapy.

Researchers: Program discourages HIV transmission in Russia

A study published in the journal Addiction found that sexual behavior counseling during drug addiction treatment can decrease risky sexual behavior and HIV transmission in Russian substance-dependent individuals. The PREVENT program, a behavioral intervention, was effective in increasing safe sex among participants.

HIV treatment in Africa as successful as in Europe, if started in time

A study published in PLOS Medicine found that a public-health approach to HIV treatment in South Africa is equally effective as an individualized approach used in Switzerland. Treatment initiated early greatly reduces HIV levels and viral rebound, but higher mortality rates were observed in South Africa.

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.

When should children infected with HIV start medication

The article discusses the controversy surrounding when to initiate antiretroviral treatment in children with HIV. Dr. Steven Welch argues for deferred treatment to avoid poor adherence habits and drug resistance, while Professor Di Gibb advocates for early initiation to prevent disease progression and promote healthy growth.

Annals of Internal Medicine tip sheet for Feb. 5, 2008, issue

Localized prostate cancer treatment options face uncertainty due to limited evidence. Gene expression tests for breast cancer hold promise but require further data on benefits and limitations. New HIV treatment guidelines suggest earlier initiation may increase life expectancy for younger patients. Pregnant women should not be screened...

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.

Using flower power to fight foot woes

Researchers have found that marigold therapy can clear or greatly reduce the number and size of plantar warts in four to six sessions, even in HIV-positive patients who are harder to treat. The therapy uses extracts from several types of marigold plants and has been used for nearly 30 years in the UK to treat various foot issues.

New study looks at long-term drug costs for treating AIDS in Brazil

Researchers analyzed long-term cost trends of HAART drugs in Brazil, finding that while costs increased due to rising treatment needs, the country saved $1 billion through price negotiations with pharmaceutical companies. The study highlights the need for increased resources to achieve universal access to AIDS treatment.

Testing delays cause severe AIDS complications, Einstein researchers find

A study published in Medical Care found that people infected with HIV continue to die and suffer from AIDS complications due to delayed diagnosis and treatment. Researchers discovered that patients who had received medical care for other illnesses were often not diagnosed with HIV infections earlier, leading to severe complications.

HIV patients sicker when seeking care than in the past

A new study finds that HIV-infected patients are sicker when starting therapy compared to the past. The delay in diagnosis and treatment is particularly pronounced among injection drug users, women, and certain demographic groups.

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.

Many in Africa don't continue HIV treatment

A study published in PLOS Medicine found that over one-third of patients receiving HIV medication in Africa discontinue treatment within two years. However, the average retention rate at two years was estimated at 61.6%, indicating some success in maintaining treatment. Researchers suggest improving retention rates by starting treatmen...

New publication presents latest in HIV/TB treatment, research

The new publication provides up-to-date recommendations for clinicians treating patients with both HIV and TB, emphasizing the urgent challenge of integrating these two complex diseases. Key articles focus on treatment options, diagnostic tools, and prevention strategies, highlighting the need for closer collaboration between experts.

New treatment model for HIV

Researchers have developed an induction-maintenance treatment strategy that balances viral suppression with minimal harm to patients. The model suggests six to ten months of induction therapy can achieve durable suppression of HIV, making it a promising approach for eradicating resistant viruses.

Stopping the HIV pandemic in children

Early HIV testing for exposed infants can prevent infection before AIDS or death, allowing for prophylaxis or treatment implementation. Universal availability of prophylaxis or treatment is crucial, but poses challenges such as long-term toxic effects of anti-retroviral treatment.

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.

Penn researchers develop new method for screening drug-resistant forms of HIV

Penn researchers have developed a new method for screening drug-resistant forms of HIV that analyzes multiple HIV variants simultaneously, while also reducing time and costs. The technique uses DNA bar coding and pyrosequencing to quantify and characterize hundreds of thousands of HIV variants for drug resistance in a single test.

Treatment outcomes of patients with HIV and tuberculosis

A retrospective study of 700 patients found that HIV-infected individuals had significantly higher TB relapse rates compared to those without the virus. The study also showed that shorter treatment regimens may lead to more frequent relapses in HIV-infected patients.

Treating HIV in war zones -- Public health emergencies need rapid advice from WHO

In conflict settings, HIV treatment can be effectively delivered with preparedness and contingency measures. A study from Médecins Sans Frontières (MSF) reports similar treatment outcomes to non-conflict settings, highlighting the importance of emergency drug supplies, stockpiling, and educating patients on consistent pill-taking. The ...

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.

A drug's brand name skews patient treatment choices

A randomized trial found that brand names significantly impact patient treatment decisions, with 36% changing their choice after seeing the true name. The study suggests that decision aids can help patients navigate complex medical decisions and express their personal values.

HIV survival improves if patients stay in care

Researchers found that HIV patients with regular medical care have better survival rates compared to those without. The study, conducted on 2,619 men with HIV, showed that patients who visited their healthcare provider at least once each quarter had significantly lower risk of dying.

1 in 3 HIV positive gay men report unprotected sex

A community survey of gay men in London, Manchester, and Brighton found that nearly one-third of HIV-positive men reported having unprotected sex, while almost one-fifth of HIV-negative men also engaged in this behavior. The study highlights the need for renewed efforts to boost HIV diagnosis and curb risk behaviors.

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.

Community-based measures fail to reduce HIV levels, new study shows

A new study published in PLoS Medicine found that community-based peer education, free condom distribution, and clinic-based STI treatment services targeting high-risk individuals had no effect on HIV incidence in the wider community. However, these measures did reduce HIV-1 incidence among men who participated in the program.

HIV in late childhood and adolescence a growing problem

A new study reveals that up to 1 in 10 infected infants may survive into late childhood or early adolescence without diagnosis or treatment. Late diagnosis can significantly affect their future health and long-term survival, emphasizing the need for accessible and sympathetic HIV testing and treatment services.

Fluke 87V Industrial Digital Multimeter

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

New compound shows promise in halting HIV spread

A new compound, 2-5AN6B, has shown significant promise in inhibiting HIV replication in white blood cells from HIV-infected patients. The compound works by a different mechanism than current drugs, reducing the risk of mutation and improving treatment effectiveness.

Drug treatment seekers more likely to use needle exchange

A Johns Hopkins study finds that individuals entering drug treatment programs are more likely to be female, unemployed, and HIV-positive, with a history of mental illness. This highlights the need for strong linkages between needle exchange programs and treatment services to address co-occurring health problems.

Delay in use of nevirapine-based AIDS treatment can improve outcomes

A new study suggests that delaying the use of nevirapine-containing antiretroviral therapy (ART) for at least six months after labor can improve treatment outcomes among HIV-infected women. The study found that women who started ART within six months of giving birth had a higher rate of treatment failure compared to those who delayed t...

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.

Early HIV treatment fails to restore memory T cells

A study published in PLoS Medicine found that HIV treatment does not restore memory T cells in most people, despite years of antiviral therapy. The researchers discovered that intestinal immune cells remained low and elevated immune activation persisted, suggesting potential clinical problems over time.

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.