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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

Atacand(R) proven to prevent stroke in the elderly

The SCOPE study found a significant 42% relative risk reduction in fatal/non-fatal strokes in the Atacand group compared to the control group. The study showed that Atacand offers important clinical benefits by reducing the risk of stroke in elderly patients with isolated systolic hypertension.

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.

Region of chromosome 1 important in blood pressure regulation

A genome-wide analysis of 1,875 people found a significant link between a region on chromosome 1 and blood pressure regulation. The study identified 24 genes that may play a role in hypertension, with three genes showing specific genetic changes associated with the condition.

Overweight boys outweigh girls in stress response, study finds

Researchers found that overweight boys experience greater increases in blood pressure during stress, but their ability to restore normal pressures is impaired. In contrast, overweight girls have a more effective natural mechanism for reducing blood pressure, which may be attributed to the effects of estrogen.

Annals of Internal Medicine, tip sheet, November 4, 2003

A new study highlights the need for improved care of vulnerable older adults with conditions such as bedsores and incontinence. Leech therapy shows promise in relieving pain from osteoarthritis, but more research is needed to determine its effectiveness.

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.

NHLBI study finds hostility, impatience increase hypertension risk

A recent NHLBI study found that hostility and impatience are associated with a higher risk of developing high blood pressure. The study, which followed over 3,000 young adults for 15 years, found that those who exhibited higher levels of time urgency and hostility had an increased risk of developing hypertension.

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.

Forgiveness a factor in blood pressure

A new study finds that forgiveness is associated with lower resting diastolic blood pressure, especially among low-income black individuals. The research, conducted on a diverse sample of community residents, suggests that forgiving oneself and others may help mitigate cardiovascular risk factors.

High blood pressure does not accelerate age-related cognitive decline

Researchers found that middle-aged individuals with high blood pressure perform slower in certain tasks compared to older adults with similar blood pressure levels. Age-related decline in cognitive performance was not accelerated by high blood pressure, but rather associated with overall difficulty of the task.

2003 HBP news tips

Studies found that people with high-normal blood pressure already have signs of target organ damage and are at increased risk for cardiovascular death. Potassium intake was also shown to reduce the size of a stroke in an animal study.

Apple iPhone 17 Pro

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

Genes can individualize treatment for high blood pressure

Researchers found genetic associations with blood pressure, including a SNP in adducin 2 that lowered systolic blood pressure in hypertensive individuals treated with beta-blockers. These findings may enable personalized treatment approaches to manage high blood pressure.

Annals of Internal Medicine tip sheet, September 16, 2003

A new set of guidelines aims to standardize reporting of medical guidelines, reducing misunderstandings among clinicians, patients, and reporters. Blood pressure pills have been found to lower hip fracture risk in older adults, but the protective effect disappears after four months without treatment.

Study seeks genetic keys to exercise success

A new study is investigating the role of genetics in exercise response, seeking to identify genes that influence body composition and fitness. The project aims to develop personalized exercise programs tailored to individual needs, which could lead to improved weight loss and reduced obesity-related risks.

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.

Annals of Internal Medicine, tip sheet, July 15, 2003

A randomized pilot study found that alternating two triple-drug regimens every three months significantly reduced drug failure and kept the viral load suppressed. However, a cost-effectiveness study identified four strategies to determine if a sore throat is caused by bacterial infection, reducing inappropriate antibiotic use.

Clerical workers show more stress signs than executives

A study by Andrew Steptoe and colleagues found that lower-level civil servants showed higher biological stress responses, including heart rate and cortisol levels, compared to their high-status counterparts. The study suggests that the experience of lower social status may trigger these responses.

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.

Depression may worsen high blood pressure

Researchers linked poorly controlled hypertension with a higher risk of depression in patients. The study highlights the importance of treating depression to prevent poor blood pressure control and related health risks.

Sesame oil helps reduce dose of blood pressure-lowering medicine

Researchers found that consuming sesame oil as the sole cooking oil for 60 days lowered patients' blood pressure levels from 166/101 mm Hg to 134/84.6 mm Hg, with a reduced dose of nifedipine from 22.7 mg/day to 7.45 mg/day. The effect may be attributed to polyunsaturated fatty acids and sesamin in sesame oil.

Multiple lifestyle changes effectively lower blood pressure

A study of over 800 adults found that combining weight loss, improved exercise, and a low-salt diet significantly lowers blood pressure. The participants who received comprehensive lifestyle modification had the best results, with an average reduction of 11mmHg in systolic and 6.4mmHg in diastolic blood pressure.

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.

Higher pain tolerance in males can't be bought

A study of 81 undergraduates found that males exhibit higher pain thresholds and tolerances than females. The researchers also discovered that psychological factors can influence the association between physiological responses and pain responses, and additional research is needed to replicate these findings.

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.

ACP: People with diabetes need to know two numbers

The American College of Physicians recommends aiming for blood pressure levels less than 135/80 mm Hg in patients with type 2 diabetes. Thiazide diuretics and ACE inhibitors can be used as first-line agents to control blood pressure, but patients may need multiple medications.

Annals of Internal Medicine, tip sheet, April 1, 2003

Research shows a decrease in antibiotic prescriptions in the US, but an increase in broad-spectrum antibiotic use, which can lead to antibiotic resistance. This shift poses significant global public health concerns, particularly for treating infections like HIV, tuberculosis, and malaria.

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.

Common heart surgery potentially dangerous

Researchers found a significant association between drops in blood pressure and mortality in patients who received protamine after bypass surgery. The study, conducted at Duke University Medical Center, suggests that even small blood pressure changes may be associated with increased risk of complications.

Researchers discover possible new mechanism for high blood pressure

Scientists have identified a key protein involved in regulating blood pressure, RGS2, which works by stopping the action of angiotensin II and enabling arterioles to relax. This discovery may lead to new ways of diagnosing and treating high blood pressure in individuals with underlying genetic defects or differences.

Fluke 87V Industrial Digital Multimeter

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

Further evidence for benefits of lower blood pressure in middle and old age

A meta-analysis of over 1 million participants from 61 studies found that lower blood pressure is strongly linked to reduced risk of cardiovascular causes, including stroke and ischemic heart disease. The study suggests that even small reductions in average blood pressure can lead to significant improvements in health outcomes.

New study shows weight loss decreases ACE enzyme that controls blood pressure

A new study published in Obesity Research reveals that shedding excess pounds decreases activity of the ACE enzyme, a key player in high blood pressure regulation. By losing weight, individuals can lower their risk of cardiovascular disease, stroke, and kidney disease, as well as experience significant improvements in blood pressure.

New recommendations to prevent high blood pressure issued

The new recommendations aim to lower average systolic blood pressure among Americans by 5 mmHg, resulting in a 14% drop in stroke deaths and 7% overall mortality. Proven behavioral changes such as regular physical activity, weight loss, and dietary potassium intake can also significantly lower blood pressure.

In blood pressure reduction, below standard is good

Research found that reducing blood pressure to less than the standard goal also lowered artery stiffness in patients with high blood pressure. The study involved 142 nondiabetic patients who received antihypertensive drugs, resulting in a significant decrease in artery stiffness for those with lower target pressures.

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.

New test predicts pregnancy problems long before they happen

The tolerance-hyperbaric test (THT) can identify pregnant women at high risk for gestational high blood pressure and preeclampsia up to 23 weeks before clinical confirmation. The test's sensitivity reaches 99% by the third trimester, providing early prevention opportunities.

Remembering stressful events may lead to later heart disease

Researchers found that recalling stressful events can lead to delayed blood pressure recovery and increased cardiovascular disease risk. Chronic stress is also associated with an elevated risk of later heart disease, likely due to prolonged strain on the cardiovascular system.

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.

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.

Fitness level may predict women’s hypertension risk

Researchers found that women with higher fitness levels showed a blunted systolic blood pressure response during the hand/ice water test, which could help predict future hypertension risk. Fitness levels did not affect blood pressure changes during other tests, but increased heart rates in fitter participants.

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.

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.

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 indicators for predicting hypertension in African-American males

A study found that young African American males without hypertension have arteries with reduced capacity to expand, indicating a potential risk factor for the disease. The research also revealed decreased baroreflex sensitivity and sympathovagal balance, suggesting an increased likelihood of developing hypertension in the future.

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.