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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

Trouble putting the kids to sleep?

A new study by Georgetown University Medical Center found that diphenhydramine, a widely used antihistamine, has no benefit in helping infants and toddlers sleep. The study involved 44 children aged 6-15 months and showed only 1 out of 22 children improved sleeping after using the drug.

Most effective antipsychotic drug has serious health consequences

A study of 93 patients found that more than half with clozapine treatment had metabolic syndrome, a group of conditions increasing heart disease and diabetes risk. Regular monitoring is crucial for patients taking clozapine due to its potential long-term health implications.

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.

Viagra improves high altitude exercise performance up to 45% for some

A study by American Physiological Society found that sildenafil can improve cardiac output and exercise performance during acute hypoxia, but not at normoxia. The results show that responders improved their time trial performance at altitude with sildenafil, while non-responders showed no significant improvement.

Hormones could be prescription for living longer

Research suggests a protein derived from fat tissue, adiponectin, may play an important role in longevity. Boosting growth hormone production also shows promise in extending independent living among the elderly.

Apple iPhone 17 Pro

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

Tip sheet, Annals of Internal Medicine, April 20, 2006

A randomized trial found abatacept to be effective in reducing disease activity and slowing joint damage in patients with active chronic rheumatoid arthritis. However, the treatment also led to a higher incidence of serious infections and infusion reactions compared to placebo. Meanwhile, hospital care for patients with COPD varies wid...

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.

Drug offers new options for leukemia patients

Dasatinib successfully circumvents Gleevec resistance in 68 of 84 patients, providing new options for CML treatment. The drug works in advanced stages of the disease and shows durable responses with no serious side effects.

Clues help identify psychological seizures

Three new studies help diagnose psychological seizures by identifying key behavioral cues, such as eye movement during seizures. These findings could guide early diagnosis and improve patient outcomes.

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.

First trimester use of ACE inhibitors implicated in birth defects

A new study found that infants born to mothers who took ACE inhibitors during the first trimester had a significantly higher risk of major birth defects. The study examined over 29,500 infant records and showed a clear increase in birth defects following first-trimester-only exposures.

Number of children and teens treated with antipsychotics increases sharply

The number of outpatient health care visits for antipsychotic medications among children and adolescents in the US increased six-fold between 1993 and 2002. Diagnoses included disruptive behavior disorder, mood disorders, and psychotic disorders. Further research is needed to confirm safety and efficacy.

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.

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.

Five-year study confirms Gleevec's long-term benefits

A five-year study confirms Gleevec's effectiveness in treating Gastrointestinal Stromal Tumor (GIST), with 84% of participants showing clinical improvement. The treatment has durable benefits, with two patients experiencing complete remission, despite some developing resistance.

Vitamin D targets thrombosis in cancer patients

A randomized trial involving 250 patients with advanced prostate cancer found that high-dose calcitriol (DN-101) significantly reduced venous and arterial thromboses compared to a placebo. This unexpected benefit offers an avenue of investigation for improved safety in various cancers.

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.

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.

Late-breaking Digestive Disease Week news

A phase 3 clinical study found that nearly half of patients with advanced illness experienced laxation within four hours of receiving methylnaltrexone, and over 70% responded by the end of the first week. The treatment also showed no diminishment of analgesia due to medication.

Pharmacists go beyond the counter to help hospitalized patients

Pharmacists are increasingly involved in collaborative care for hospitalized patients, improving medication safety and patient understanding. This expansion of their role has led to better outcomes and job satisfaction for pharmacists, as they work closely with patients, physicians, and nurses to optimize treatment.

New compounds fight chronic symptoms of bowel disorders

A new study reviews the therapeutic benefits of lubiprostone for c-IBS patients, showing improvements in abdominal discomfort and bowel movements. Teduglutide is also found to be effective in inducing remission and response in patients with moderate or severe Crohn's disease.

Biologic therapies lead evolution of Crohn's treatments

Recent studies have found that biologic therapies, such as adalimumab and certolizumab pegol, can effectively maintain clinical remission and response in patients with moderately to severely active Crohn's disease. These treatments have shown fewer side effects compared to traditional medications.

Celestron NexStar 8SE Computerized Telescope

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

Late-breaking clinical trials

Late-breaking clinical trials presented at HEART RHYTHM 2006 reveal ablation to be more effective than anti-arrhythmic drugs for treating atrial fibrillation. Additionally, catheter ablation significantly reduces ICD therapies in post-heart attack patients.

Reducing dose errors for children in cardiac arrest

The LA Kids program significantly reduced pediatric epinephrine dosing errors in cardiac arrest cases, with correct doses increasing from 28% to 57% and doses within 20% of the exact dose rising from 44% to 70%. The study emphasizes the importance of system-wide changes and education.

Study shows schizophrenia limits understanding of body language

A study led by University of Iowa researchers found that people with schizophrenia struggle to understand body language, including facial expressions and non-verbal cues. Even those with mild symptoms and taking medication, they have difficulty extracting information from these socially relevant clues.

Studies determine patient risk from ICD replacement

Multiple studies investigated ICD replacement complications, with one study finding a 1.24% complication rate and another reporting 8.1% complications. A decision analysis model was developed to guide management of device recalls, concluding that risks are not insignificant but should only be considered for high-risk patients.

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.

Rheumatoid arthritis drug linked to serious infections and cancers

A study found that patients with rheumatoid arthritis treated with TNF-blocking antibodies are at a higher risk of developing cancer and serious infections. The drugs, which were previously thought to be safe, may interfere with the body's ability to fight off infection and cancer.

Desensitization protocol overcomes allergy to clopidogrel

A new desensitization protocol allows eight patients with clopidogrel hypersensitivity to safely take the medication, reducing risk of blood clots and heart attacks. The study's findings suggest that desensitization can be a viable option for managing allergy symptoms in patients treated with clopidogrel.

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.

Antiviral drugs may help relieve nerve pain related to shingles

A small study found that antiviral therapy with acyclovir and valacyclovir can significantly reduce postherpetic neuralgia symptoms in patients with moderate to severe nerve pain following shingles. Eight out of 15 participants reported a significant reduction in pain after one month of treatment.

'Smart' genetic therapy helps the body to heal itself

Researchers have developed a drug that increases SMN protein levels in SMA patients, improving their quality of life. Another study shows promise for treating X-linked adrenoleukodystrophy (X-ALD) and Duchenne muscular dystrophy (DMD) with valproate and anti-sense molecules.

New kind of drug could increase number who quit smoking

A new type of medication, varenicline, is being developed to target the neurobiological mechanism of nicotine dependence. Trials have shown promising results, with short-term and long-term quit rates significantly higher than those achieved with existing medications or placebos.

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.

Study results offer guidance in treatment

The largest clinical trial on pharmacologic and behavioral treatments for alcohol dependence shows that medication treatment significantly improves outcomes compared to placebo. The study also provides new safety data on prescription drugs naltrexone and acamprosate, suggesting a high degree of comfort for prescribing physicians.

Effective alcohol dependence treatments defined

The COMBINE study found that medication naltrexone, combined with up to 20 sessions of specialized alcohol counseling and structured medical management, is an effective option for treating alcohol dependence. The study demonstrated a small advantage in preventing relapse at 1 year after treatment.

Successful treatment of alcoholism found in the doctor's office

Researchers found that combining medical management, naltrexone, or therapy can significantly help people with alcohol disease. The study, COMBINE, included 1,383 subjects and showed that just nine 20-minute sessions with a medical professional yields good clinical results.

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.

How the US drug safety system should be changed

The proposed approach would feature conditional approval followed by postmarketing studies required before condition removal. The FDA needs increased ability to regulate drugs after marketing with more resources for postmarketing safety studies.

Particular treatments effective for alcohol dependence

A study published in JAMA found that medical management with naltrexone significantly improved drinking rates and days abstinent. The researchers also discovered that combining behavioral therapy with medical management showed better results than treatment with placebos alone.

Onset of psychosis may be delayed by medication

Researchers found that medication may delay the onset of psychosis in schizophrenia patients, leading to improved treatment outcomes and reduced symptoms. The study suggests that early recognition and treatment can help prevent or delay the development of full-blown psychosis in individuals with prodromal symptoms.

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.

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.