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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

Depression predicts mortality in women with heart disease

Researchers at Duke University Medical Center found that women with coronary artery disease are twice as likely to die if they exhibit symptoms of depression. The study analyzed the Beck Depression Inventory scores of 265 women admitted for a diagnostic cardiac catheterization and followed them for up to 3.5 years.

Blood protein may be important predictor of future cardiovascular attack

Researchers discovered a link between serum amyloid alpha (SAA) and future cardiovascular events, with increased levels predicting a 3% higher risk of heart attack or stroke over three years. SAA appears to respond specifically to active heart disease, making it a potential more accurate predictor than C-reactive protein.

Apple iPhone 17 Pro

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

Defibrillators may improve survival in non-ischemic cardiomyopathy

The DEFINITE study found that implantable cardioverter-defibrillators (ICDs) can reduce the risk of sudden cardiac death and improve overall survival in non-ischemic cardiomyopathy patients. The study, which followed 458 participants for two years, showed a statistically significant reduction in arrhythmic deaths and all-cause mortality.

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SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Patients' depression better predictor of poor quality of life

A study by Mary A. Whooley and colleagues found that depressive symptoms are a better predictor of poor quality of life in patients with coronary disease than previously thought. The researchers measured depressive symptoms using the Patient Health Questionnaire (PHQ) and found that these patients were more likely to report lower healt...

Lifestyle changes, statins reduce calcium in heart arteries

A study found that statin therapy combined with aggressive lifestyle modifications can significantly reduce coronary calcium scores and prevent disease progression. In the 12-year follow-up, nearly one-third of patients on statins and lifestyle changes showed reduced calcification scores, avoiding revascularization procedures.

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Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Stanford research shows medications underused in treating heart disease

A Stanford study finds that medications for heart disease, including warfarin, beta blockers, and ACE inhibitors, are underused in outpatient settings. The researchers urge improved education, quality-improvement practices, and patient involvement to address this issue and reduce complications.

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%).

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Mayo Clinic study shows no adverse heart effect for sildenafil (Viagra®)

A Mayo Clinic study found that sildenafil does not worsen symptoms of inadequate blood supply to the heart muscle during exercise in men with coronary artery disease. The study, which involved 105 patients, suggests that sildenafil can be safely prescribed for these patients without increasing their risk of heart attacks.

Smoking increases likelihood of impotency

A study by Northwestern University researchers found that men who smoke are more likely to experience erectile dysfunction due to the negative effects of smoking on blood vessels. The prevalence of erectile dysfunction in former smokers was similar to that of never-smokers, highlighting the long-term risks of tobacco use.

Electron beam CT detects artery disease in former Kawasaki patients

Researchers used EBCT to screen coronary arteries for calcium deposits in former Kawasaki patients. Four out of 18 participants showed positive results, indicating moderate to high risk of coronary artery disease. The study suggests that EBCT can be an effective non-invasive screening method for detecting artery disease in these patients.

Davis Instruments Vantage Pro2 Weather Station

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Positive attitude is best prevention against heart disease

A new study by Johns Hopkins Medicine suggests that nitroglycerin relief does not accurately predict coronary artery disease, challenging the long-held assumption. The study found that only 28% of patients with heart disease experienced chest pain relief from nitroglycerin.

New drug shows promise in preventing blood clots

A Phase Ib clinical trial led by Duke University Medical Center cardiologists has cleared its first hurdle for a potential new treatment that prevents the formation of blood clots earlier than other agents. The drug inhibits Factor Xa, a pivotal clotting factor involved in blood clot formation.

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Gum disease higher in heart attack patients

A study by the American Heart Association found that individuals with heart attacks are more likely to have periodontal disease, a type of gum tissue inflammation. The researchers believe that high blood levels of C-reactive protein may be linked between the two conditions.

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.

NHLBI launches 10-year study on early detection of heart disease

The NHLBI has launched a 10-year study to find new ways of detecting heart disease early, before symptoms appear. The $68 million Multi-Ethnic Study of Atherosclerosis (MESA) will collect data on various risk factors, including calcium deposits in coronary arteries and pulse waves at the radial artery.

Elderly smokers also benefit from quitting

A recent study review suggests that elderly smokers who quit can significantly reduce their risk of lung cancer, chronic obstructive pulmonary disease (COPD), and coronary artery disease. Additionally, quitting at an older age can still lead to improved life expectancy and a lower risk of smoking-induced mortality.

Young women with heart disease at risk of 'menstrual angina'

A study found that young women with heart disease experience worsening exercise performance and angina pain in the early follicular phase, just after menstruation, but improved performance and slower pain onset in mid-cycle. Sex hormones may play a role in these fluctuations.

Fluke 87V Industrial Digital Multimeter

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

High hostility level may predispose young adults to heart disease

A new study links high hostility levels to an increased risk of coronary artery calcification and heart disease in young adults. The researchers found that those with higher hostility scores were nearly 3 times more likely to develop coronary artery calcification than those with lower scores.

How safe is the wait?

Patients awaiting coronary artery bypass grafting (CABG) in Ontario face higher mortality risk compared to the general population. However, a new study found that those on the waitlist may actually have similar or decreased vital risk when compared to patients living with coronary artery disease.

MGH study shows aspirin use low in patients with coronary artery disease

Despite evidence supporting aspirin's effectiveness in preventing future heart problems, low usage rates were found among patients with coronary artery disease. The study, published in Circulation: Journal of the American Heart Association, highlights the need for optimal use of life-saving medications.

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 treadmill 'scores' may help physicians better diagnose heart disease

A new scoring system used in treadmill testing has been found to improve the accuracy of diagnosing heart disease, with 77% accuracy overall compared to 69% for expert cardiologists. This method is more accurate than expensive diagnostic equipment and can provide a second opinion for physicians.

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.

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.

For heart disease patients, depression takes heavy toll

A new study by researchers from the University of Washington reveals that depression significantly impairs heart disease patients' ability to work and perform daily activities. Patients with both major and minor depression were found to function less well than nondepressed patients, reporting more heart disease symptoms.

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.

Real Connection Between Oral Health And Heart Disease

Researchers suggest a clear connection between periodontal disease and cardiovascular disease, with bacteria and toxins traveling through the bloodstream. Periodontal bacteria contain lipopolysaccharides that can cause illness and damage blood vessel linings.

Life In Womb Determines Adult Health

A lifetime of poor health can start with conditions in the womb, according to Cornell University researcher Peter W. Nathanielsz. He argues that adults may suffer diseases due to incompletely formed organs during vulnerable periods of development. The book emphasizes the importance of prenatal care and nutrition for future generations.

Friends, Family Can Help Heart Patients Avoid Depression

Researchers found that heart patients with high levels of social support show fewer symptoms of depression, while those with low social support tend to have higher levels of depression. Interventions that decrease hostility and increase social support may also benefit heart disease patients.

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Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

New Guidelines Issued For Diagnosing And Treating Heart Valve Disease

The new guidelines provide recommendations for diagnosing and treating heart valve disease, covering common disorders such as mitral valve prolapse and aortic stenosis. It also addresses rare ailments, provides advice on evaluating and treating adults, teens, and pregnant women with defective valves.

New Multi-Center Study Proves Non-Surgical Treatment Reduces Angina

A new study finds that Enhanced External Counterpulsation (EECP) is effective in reducing angina in individuals with coronary artery disease. EECP, a non-invasive therapy, has been proven to improve exercise tolerance and reduce angina attacks, offering relief for patients who suffer from this condition.

Depression A Risk Factor For Coronary Artery Disease In Men

A Johns Hopkins study has found that depression is an independent risk factor for coronary artery disease in men, with those experiencing clinical depression twice as likely to develop the condition. Symptoms of CAD appeared on average 15 years after the first episode of depression.

Do Heart Disease And Cancer Have A Common Genetic Link?

A study by Cornell University Medical College researchers suggests that atherosclerosis and some forms of cancer may be linked to a single-cell mutation in the Type II TGF-beta receptor gene. This finding could provide new avenues for understanding cardiovascular disease progression and developing diagnostic and therapeutic strategies.

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.

Multi-Purpose Molecule May Help Reduce Heart Disease

A study by Johns Hopkins Medicine reveals that boosting production of the molecule arginine can restore normal blood vessel responses in people with coronary artery disease. By increasing nitric oxide production, researchers were able to improve blood flow and reduce the risk of ischemia and heart attack.