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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

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.

Diabetic women gain significant health benefits from eating fish

Diabetic women who eat more fish have a significantly lower risk of coronary heart disease, heart attacks, and mortality rates compared to those who rarely consume fish. The study found that higher fish consumption was associated with improved blood vessel functions, reduced blood clot formation, and decreased triglyceride levels.

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.

Women urged to reduce heart disease risk before menopause

A study by the American Heart Association suggests that women approaching menopause should take steps to lower their heart disease risk. Researchers analyzed data from over 1,300 perimenopausal women and found that many would become eligible for cholesterol-lowering therapy after age 55 if current risk factors are not modified.

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.

Eating breakfast may reduce risk of obesity, diabetes, heart disease

Research finds that eating breakfast daily lowers rates of obesity and insulin resistance syndrome, a key factor in type 2 diabetes and heart disease. Whole-grain cereals also appear to have protective effects, with daily consumption associated with a 15% reduced risk of the syndrome.

Apple iPhone 17 Pro

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

Stressed-out men may have inherited risk for early heart disease

A new study suggests that family history of heart disease and a genetic predisposition to stress may be key factors in the development of early heart disease. Men with a positive family history tend to develop heart disease 12 years earlier than those without, and experience higher stress levels

The timing of hormone replacement therapy could be key to success

Researchers believe initiating hormone replacement therapy in younger women without advanced vessel disease can prevent heart vessel disease. However, delaying HRT may lead to ineffective or potentially harmful effects on older women with more advanced vessel disease.

Mutant protein linked to heart failure

Researchers found a mutant protein, phospholamban (PLN), that disrupts calcium signaling in heart muscle cells, leading to contractile dysfunction and heart failure. The study provides insight into the fundamental signals that tip a diseased heart into failure.

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.

Caregiving raises risk of heart disease in women

A long-term study of 54,412 women found that those who cared for loved ones for nine hours or more per week had a higher risk of coronary heart disease. The researchers suggest that mental distress, financial burdens, and limited social support may contribute to this increased risk.

Stanford studies online self-management for people with chronic diseases

Stanford is conducting an online self-management program for individuals with heart disease, lung disease, and type-II diabetes. The program aims to improve health outcomes by teaching participants how to manage their conditions effectively, including managing medications, exercise, and stress.

Stanford researcher studies newly discovered 'good' cholesterol gene

Researchers have identified a new gene, endothelial lipase (LIPG), that regulates HDL cholesterol levels and impacts the risk of developing heart disease. By altering LIPG expression in genetic models, scientists found an inverse relationship between HDL cholesterol and EL expression.

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.

Expressing anger may protect against stroke and heart disease

A new study found that men with moderate anger expression had nearly half the risk of nonfatal heart attacks and a significant reduction in stroke risk compared to those with low anger expression. Moderate anger may be protective against cardiovascular disease over a limited period, according to researchers.

New center will probe links between diet, genes and disease

The Nutrigenomics Center will investigate how different foods interact with genes to increase the risk of diseases like type 2 diabetes, obesity, and heart disease. The center aims to identify genes controlled by naturally occurring chemicals in food to improve health management for individuals based on their unique genetic makeup.

Annals of Internal Medicine, tip sheet, January 21, 2003

A study on breast cancer treatment found that many women do not receive adjuvant chemotherapy as recommended, with age being a significant factor. In contrast, women with known heart disease are at high risk of future heart events but often lack preventive treatments, highlighting the need for better care coordination.

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.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Task force issues new diet counseling recommendations

The US Preventive Services Task Force recommends intensive diet counseling for at-risk adult patients to reduce fat and increase fruits and vegetables. Effective counseling involves multiple sessions and interactive materials, with studies showing significant changes in eating habits and some health benefits.

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.

Tooth loss linked to increased stroke risk

A new study by the American Heart Association has found a significant link between tooth loss and an increased risk of ischemic stroke. Men with fewer than 25 teeth had a 57% higher risk of ischemic stroke compared to those with 25 or more teeth, suggesting that infection plays a role in stroke and heart disease.

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.

Diabetic gene linked to heart disease

A new genetic test can identify patients with diabetes at high risk for heart disease, potentially saving lives through early intervention. Researchers analyzed the haptoglobin gene in a population-based study and found that individuals with one form of the gene were five times more likely to develop heart disease.

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.

Blood proteins tied to inflammation

Researchers found that high levels of C-reactive protein and low albumin are associated with a higher risk of cardiovascular disease in dialysis patients. The study, which followed over 1,000 patients for four months, found that these proteins can identify patients at high risk before heart events occur.

Celestron NexStar 8SE Computerized Telescope

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

Thanksgiving menu stuffed with healthy choices

Honey-baked meats contain antioxidants that may protect against heart disease, while bread crusts are rich in cancer-fighting compounds. Cranberries top the antioxidant chart, followed by canned corn, herbs like oregano, and sweet potato-based desserts.

Exercise shown to have positive effect on cholesterol

Researchers at Duke University Medical Center found that exercise, regardless of intensity or fitness level, can improve cholesterol levels by increasing the size of particles carrying good and bad cholesterol. The study also showed that standard lipid panels may not accurately measure risk of heart disease.

Fluke 87V Industrial Digital Multimeter

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

Study describes second kind of heart failure

A new study by Wake Forest University School of Medicine has confirmed the existence of diastolic heart failure, a condition that affects older adults' quality of life and exercise capacity. People with this condition experience severely reduced physical ability and increased neuroendocrine activity.

NHLBI funds new heart-health education projects in high-risk communities

The NHLBI has funded new heart health education projects in high-risk communities across the US, with a focus on reducing cardiovascular disease and stroke deaths. The projects will employ creative approaches to engage communities, including training peer health educators and conducting awareness-raising town-hall meetings.

Nurse intervention helps cardiac patients manage cholesterol

A study by Johns Hopkins Medicine found that nurse case management significantly improves risk factor management in patients with coronary heart disease. The program led to healthier diet and exercise patterns, as well as higher achievement of recommended cholesterol levels, compared to minimal intervention.

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.

Still mulling over last night's argument? It could affect your heart

A recent study by UC Irvine researchers suggests that dwelling on emotionally charged events, such as arguments, can lead to higher blood pressure and increased risk of later health problems. The study found that ruminating over past stresses can cause longer recovery times in the body than non-emotional yet stressful events like running.

Hormone replacement therapy – reviewing the evidence

The study found that hormone replacement therapy (HRT) increases the risk of breast cancer, pulmonary embolism, and stroke in women, while reducing the risk of colorectal cancer and hip fractures. HRT may also increase the risk of cardiovascular disease among older women.

Engineers model blood flow

Researchers developed a computer model of blood flow in the aorta, identifying areas prone to disturbed flows that could lead to atherosclerosis. The model uses CAT scan images and predicts where oscillating flows may cause damage, allowing doctors to assess heart disease risk.

Almonds: Cholesterol lowering, heart-healthy snack

A clinical trial found that consuming almonds daily significantly reduces LDL cholesterol levels in hyperlipidemic subjects. The study also showed that eating more almonds increased the reduction of 'bad' cholesterol even further, without resulting in weight gain.

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.

New predictor of heart disease risk found

Researchers at UC Davis discover that c-reactive protein inhibits protective enzyme eNOS, leading to increased plaque formation and heart disease risk. This finding supports the need for new screening guidelines and highlights the importance of measuring c-reactive protein levels in high-risk groups.

Women heart patients suffer lower quality of life than do men

A study of 536 patients found that women reported poorer physical and psychological functioning after hospital treatment, with lower quality of life associated with feelings of loneliness. The absence of social support was a key factor in this difference, highlighting the importance of friendship and companionship for women's well-being

Mayo Clinic Proceedings features primers on medical genomics

The primer series provides a historical background of genetics and the sequencing of the human genome, as well as principles and methods in molecular biology. The authors highlight the potential benefits of the genomic revolution in understanding diseases such as cancer, heart disease, and Alzheimer's disease.

Cooking sweet corn boosts disease-fighting nutrients

Research at Cornell University found that cooking sweet corn increases its antioxidant activity by up to 53% and ferulic acid content by 900%. This boost is due to the release of bound ferulic acid during high-temperature cooking.

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.

American Thoracic Society Journal news tips for July (second issue)

Researchers found that humming increased nitric oxide levels in the sinuses, boosting ventilation. Smoking by family members was linked to an increased likelihood of children being diagnosed with asthma before age 6. Obstructive sleep apnea was also associated with a significant increase in heart disease.

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.

Passive smoking increases the risk of heart disease

A study of 2000 non-smoking patients found that even brief exposure to second-hand smoke increases the risk of acute heart disorders by 26%. The researchers conclude that eliminating cigarette smoke from public places is crucial to protecting non-smokers.

Cardiovascular benefits of long-term fruit and vegetable consumption

Research found that adults consuming at least 3 servings of fruits and vegetables daily had a 27% lower stroke incidence and 42% lower stroke mortality rate compared to those with low or moderate intake. Regular exercise, no smoking, and low dietary cholesterol also contributed to cardiovascular disease prevention.

Path from chronic stress to heart disease clarified

A study published in Psychosomatic Medicine found that chronic stress is associated with an increased risk of heart disease in men. The research, led by Peter P. Vitaliano, identified a general pattern connecting chronic stress to heart disease, including poor health habits and changes in body composition and metabolism.

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.

Lonely people face higher risk of heart disease

Lonely college students exhibited increased blood pressure from mentally stressful tasks, with higher vascular resistance and lower cardiac output compared to non-lonely peers. In older subjects, systolic blood pressure rose with age in lonely individuals, suggesting a pervasive cardiovascular risk associated with loneliness.

Low referral rates, low income keep women out of cardiac rehab programs

A new study found that women hospitalized for a heart attack or unstable angina are less likely to be referred to cardiac rehabilitation programs despite being good candidates. Women with lower family income and less confidence in their ability to improve their heart health face significant barriers to participation.

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.

Antioxidant gene mutation gives free radicals free reign

A gene mutation that affects antioxidant production is associated with a 50% increase in heart disease risk, even among those without traditional cardiovascular risk factors. Individuals carrying the mutation have an 80% higher risk of developing brain vessel disease.

Tired and angry? Both emotions may predict heart attacks

A new study found that tiredness, frustration, and fatigue can increase the risk of heart attacks. Researchers analyzed data from over 12,000 participants, aged 45-64, to determine if psychological factors such as anger, vital exhaustion, and chronic fatigue could predict long-term heart attack risk.

Firstborn: First risk for heart disease?

Researchers found that 46.7% of coronary heart disease patients were firstborn, with lower rates of cigarette smoking and similar risk factors compared to younger siblings. The study suggests primogeniture as an independent predisposing determinant of CHD, which should be taken into account when assessing global patient risk.