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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

Unusual fatigue may be warning symptom of heart attack in women

Researchers found that unusual fatigue was the most common early symptom reported by women before their heart attacks, with 70% of cases. The study's lead author emphasizes the importance of educating women about new symptoms and seeking medical care to determine their cause, especially those with known cardiovascular risks.

Aspirin withdrawal may pose risk to coronary patients

Patients with a history of coronary disease are at high risk of experiencing acute coronary events, including unstable angina and heart attacks, after aspirin withdrawal. Aspirin therapy is essential in reducing the risk of developing acute blockage in coronary arteries.

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.

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.

Hot pepper chemical links tongue to heart

Researchers discovered that 'hot pepper' receptors on the heart trigger symptoms of heart attack and may lead to new treatments for angina pectoris. The study found that these receptors cause blood vessels to constrict and increase blood pressure, leading to chest pain.

Fruits, vegetables overlooked by healing heart patients

A recent study of 118 heart patients found that while they made significant progress reducing fat intake, many failed to adopt a diet rich in fruits and vegetables. After two years, only 23% were meeting the recommended daily intake, highlighting the need for targeted nutrition education.

Apple iPhone 17 Pro

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

Anxiety hits women harder after heart attack

A study published in Psychosomatic Medicine found that women have higher levels of anxiety after a heart attack compared to men. The researchers also discovered that both men and women under age 60 reported higher anxiety levels, while older individuals experienced lower anxiety due to their expectation of illness.

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.

Breast cancer survivors have fewer heart attacks

A study of over 5,980 women aged 67 or older found that breast cancer survivors had 34% fewer hospitalizations for heart attacks than non-survivors. The protective effect increased with higher cardiac risk factors, suggesting that female hormone levels may play a role in preventing heart disease.

Treatment for depression in heart attack patients fails to improve survival

A new study published in the Journal of the American Medical Association found that treating depression and social isolation in heart attack patients does not improve survival rates, but significantly improves quality of life. The ENRICHD trial followed 2,481 heart attack patients with depression or low social support for 29 months.

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.

Blood test could detect heart attack early

A new blood test can detect heart attacks in just five minutes with a 99% accuracy rate, improving diagnosis and treatment outcomes. The test identifies two proteins associated with the earliest stages of a heart attack, reducing unnecessary hospital stays.

Oral contraceptives increase C-reactive protein, an infIammatory biomarker

A new study found that current low-dose oral contraceptives significantly increase plasma concentrations of C-reactive protein (CRP), an inflammatory biomarker associated with cardiovascular disease. CRP levels were two times higher among OC users than non-users, regardless of diet assignment or phase of the menstrual cycle.

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.

Gene for cellular receptors could be key for lower heart risk

Researchers have found a potential genetic link between variations in the beta-2 receptor gene and a reduced risk of heart attack and death from coronary disease. The study, published by the American Heart Association, suggests that individuals with certain forms of the gene may be more resilient to cardiovascular disease.

Calcification in heart valve increases risk of heart attack or death

A new study found that calcification in heart valves is independently associated with an increased risk of heart attack and death. After adjusting for known risk factors, the researchers found that individuals with MAC were 50% more likely to develop cardiovascular disease and 60% more likely to die from cardiovascular causes.

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.

Employed black women have lower heart risk than black homemakers

Research suggests that employed African-American women have a 33% lower risk of coronary events compared to their homemaking counterparts. The study found no significant difference in heart disease rates among white women who worked outside the home and those who were homemakers.

VA heart attack care for mentally ill shows little disparity

Researchers analyzed VA records of 4,340 patients who received heart attack care between 1994-1995. Patients with mental illness had a slightly lower rate of diagnostic angiography, but no significant difference in survival rates for 90 days after the heart attack.

Cell transplantation could restore cardiac function after heart attack

Researchers report improved left-ventricular and overall heart function in a 72-year-old man after receiving undifferentiated stem cells. The grafted scar showed the presence of well-developed skeletal myotubes with preserved contractile structure, indicating long-term viability and functional potential.

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.

Stem cells may offer hope for tissue regeneration after heart attack

Experimental evidence suggests that stem cell implantation can trigger angiogenesis in damaged heart tissue, leading to improved blood flow and potentially safe treatment outcomes. However, further controlled studies are needed to fully understand the role of cell transplantation in myocardial regeneration.

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.

New study ties moderate beer drinking to lower heart attack risk

A new study found that moderate beer drinking is associated with lower heart attack risk, as shown by decreased cholesterol levels, increased antioxidants, and reduced fibrinogen levels. The study also discovered structural changes in fibrinogen caused by beer consumption, which may serve as a new diagnostic indicator for heart attack ...

Study suggests inflammatory protein is strongly associated with heart disease

A new study suggests that high levels of inflammatory protein CRP are strongly associated with an increased risk of ischemic heart disease. The research found that patients taking beta blockers and statins had less inflammation, indicating that treating inflammation may play a crucial role in preventing heart disease.

Mercury associated with risk of heart attack

Researchers found that mercury in fish counteracts the benefits of omega-3 fatty acids, increasing the risk of heart attack. Consuming low-mercury fish like salmon can help reduce cardiovascular risk.

Terrorist attacks increased dangerous irregular heartbeats

A study of ICD patients found a significant increase in dangerous irregular heartbeats after a terrorist attack, highlighting the impact of stress on the heart. The rate of ICD discharges remained elevated for a month following the attack.

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.

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.

Death rates lower in hospitals that follow heart attack guidelines

A new study by the American Heart Association found that death rates are significantly lower in hospitals that follow established guidelines for treating heart attacks. The study examined adherence to clinical practice guidelines at 1,085 US hospitals and found that leading hospitals had a 50% higher rate of beta-blocker use and a 30% ...

NHLBI study finds improved heart failure survival

A new NHLBI study has found improved heart failure survival rates, with deaths decreasing by 12% per decade for both men and women. The study, which analyzed data from 10,317 participants over 50 years, also revealed a significant drop in new cases of heart failure among women during the same period.

Life-saving properties of beta blockers extend to more patients

Researchers found that beta blockers significantly reduced overall death rates by 16-34% in two years, regardless of inducible tachycardia presence. However, the drugs did not reduce arrhythmic death or cardiac arrest, but showed a trend towards fewer events with combined antiarrhythmic and beta blocker therapy.

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.

Periodontal examinations could save lives

A comprehensive periodontal examination can save lives by detecting undiagnosed protein S deficiency, a condition that causes thrombotic disorders and increases the risk of strokes and heart attacks. Early diagnosis is key to successful treatment outcomes and improved survival rates for patients with this condition.

MRI can predict risk of heart attacks

A new study published by the American Heart Association found that MRI stress tests can predict fatal and nonfatal heart attacks in patients with certain conditions. The study used MRI stress tests on 279 men and women referred for further testing after initial ultrasound screenings were inconclusive.

Annals of Internal Medicine, tip sheet, October 1, 2002

Two studies found that patients with kidney disease are at increased risk of death after a heart attack, receiving less-aggressive treatment. Meanwhile, researchers report four cases of muscle damage caused by statins, highlighting the need for closer monitoring.

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.

Non-traditional tests may be dynamic duo in predicting heart problems

Researchers found that combining calcium scores and CRP levels can gauge the presence, amount, and stability of artery-clogging plaque. Elevated CRP levels were linked to increased risk of coronary events, while combined tests showed a six-fold difference in heart attack risk between high-risk and low-risk individuals.

Stent or bypass surgery for coronary artery disease?

A recent study found that stent-assisted angioplasty reduced the need for repeat revascularization by 14% compared to CABG. Additionally, patients who received angioplasty experienced a lower risk of subsequent heart attack (5%) than those given CABG (8%).

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.

Exhaustion's effect on blood increases heart attack risk

Research found that vital exhaustion, a state of excessive fatigue and hopelessness, is associated with higher blood levels of fibrinogen, which can lead to excessive blood clotting. Decreased early morning fibrinolysis was also linked to vital exhaustion, increasing heart attack risk.

Can an aspirin a day keep atherosclerosis at bay?

Researchers found that low-dose aspirin changes the composition of arterial plaques, reducing cholesterol-rich cells and increasing collagen and smooth muscle cells. This shift in plaque composition is associated with reduced inflammation and lower risk of rupture.

New overview adds more evidence for safety of third generation Pill

Recent studies consistently demonstrate the increasing safety of third-generation oral contraceptives, particularly in reducing heart attack risks. The aggregated findings of seven studies involving nearly 6,500 women suggest that all current oral contraceptives are safe when used according to their regulatory labels.

Celestron NexStar 8SE Computerized Telescope

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

Drug combo curbs artery re-closing after some heart attacks

A combination therapy of aspirin and coumarin reduced artery re-closure after heart attacks by 45% in a clinical trial. The therapy also improved problem-free survival rates and reduced the incidence of second heart attacks, according to researchers from the American Heart Association.

Annals of Internal Medicine, tip sheet, July 16, 2002

The US Preventive Services Task Force recommends that all adults over 50 be screened for colorectal cancer using methods like the fecal occult blood test or flexible sigmoidoscopy. The Task Force also notes that clot-busting drugs and angioplasty are underused in certain patient groups, particularly women and specific types of heart at...