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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

Preeclampsia solutions sought

The first International Preeclampsia Summit is being held to bring together experts in the field to discuss ways to intervene and reduce maternal illness and death due to preeclampsia. The summit aims to prioritize appropriate treatment options for this top cause of maternal mortality.

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.

Stroke risk increases with metabolic syndrome

A study found that people with metabolic syndrome are 1.5 times more likely to develop a stroke than those without it, with women being 2.1 times more at risk. The condition is also associated with an increased risk of heart attacks and vascular-related deaths.

Hypertension-related eye damage more common in blacks than whites

A new study has found that African Americans are at higher risk of developing hypertensive retinopathy, a sign of severe hypertension. The study, which included over 15,000 participants, found that racial differences in blood pressure levels and hypertension severity were the main factors contributing to this disparity.

Apple iPhone 17 Pro

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

JCI Table of Contents, February 14, 2003

Researchers found that RGS2-deficient mice developed strongly hypertensive conditions and persistent vessel constriction due to prolonged GPCR signaling. Genetic defects affecting RGS2 function may also contribute to hypertension in humans, according to findings published in the Journal of Clinical Investigation.

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.

Keeping blood pressure in check

A study found that mice deficient in RGS2, a regulatory protein, exhibited persistent vessel constriction and strongly hypertensive effects. This suggests that abnormally prolonged GPCR signaling may contribute to the onset of hypertension.

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.

Residents of disadvantaged areas have higher stroke risk

A study analyzing data from a large ongoing stroke study found that living in an area with high poverty levels and unemployment is an independent risk factor for stroke. The finding holds true across racial groups, highlighting the need to rethink stroke-prevention programs and prioritize disadvantaged communities.

Jacuzzi danger?

A man with kidney disease experienced severe abdominal pain after using a whirlpool in a Jacuzzi, highlighting potential health risks. The case study suggests that whirlpooling may cause mechanical injury to the kidneys, particularly under conditions like hypertension or anticoagulation.

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.

Less-expensive diuretics found superior in treatment of hypertension

The Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT) revealed that diuretic chlorthalidone is more effective in controlling hypertension than other drugs. The study, involving over 33,000 participants, showed that patients require multiple medications to manage blood pressure effectively.

Hemoglobin-based agent reduces need for transfusion during heart surgery

A Phase II clinical trial has shown that an hemoglobin raffimer may be effective in reducing the need for transfused blood during heart surgery. The study found that patients treated with the agent experienced no significant negative side effects, except for elevated blood pressures, which were manageable.

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.

Good health’s in the mail: Mailed promotions cut doctor visits for some

A study found that mailed health promotions reduced outpatient visits by an average of 4.84 visits among arthritis patients, while increasing visits for high blood pressure patients. The interventions generated significant savings, supporting the potential cost-effectiveness of health mailings for managing chronic conditions.

Want hypertension? Hurry up!

A pioneering study found that time urgency and impatience during young adulthood are associated with increased risk of developing hypertension years later. The strongest link was seen among white men, who were more than three times as likely to develop high blood pressure as those in lower TUI groups.

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.

World Health Report: addressing main risk factors

The World Health Report 2002 reveals that childhood and maternal underweight, unsafe sex, high blood pressure, and tobacco consumption are the leading causes of global burden of disease. Increasing fruit and vegetable consumption can be a simple step towards reducing certain risk factors.

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.

Blood pressure medication preserves cognitive function in older African-Americans

A study of 1,900 older African-American participants found that continuous antihypertensive medication reduced the risk of memory loss by over a third. The research provides another reason for African-Americans to take their blood pressure pills and highlights the importance of managing high blood pressure to prevent cognitive impairment.

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.

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.

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.

Nighttime is the right time to prevent preterm labor with aspirin

A double-blind, randomized controlled trial found that taking aspirin at bedtime significantly reduced the risk of preterm labor and preeclampsia in pregnant women with high blood pressure. The study also showed significant weight gains in babies born to mothers who took aspirin at night.

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.

Celestron NexStar 8SE Computerized Telescope

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

Psychological distress may predict hypertension

A study of 15 research studies found that high psychological distress was associated with an 8% increased risk of developing hypertension. The researchers suggest that the relationship between psychological factors and hypertension development is a significant concern for clinical health experts.

Ethnic, gender differences in blood pressure also seen in youth

Research found that adolescent blood pressure increases differ by ethnicity and sex. Black participants showed greater blood pressure responses to stress compared to white subjects. Males also exhibited higher blood pressure levels during relaxation, similar to findings in adults.

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.

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.

Vaccine prevents stroke in rats

A new vaccine has been shown to prevent stroke in rats by reducing inflammation in blood vessels. The study found that the vaccine reduced ischemic strokes by 16 times and prevented hemorrhagic strokes altogether.

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.

Mother (nature) knows best

Researchers found that linoleic acid significantly improved vasodilatory responses and decreased systolic blood pressures in spontaneously hypertensive rats. The study also showed that linoleic acid administration improved spatial reference memory in older SHRs, suggesting a positive link between D1 receptor density and cognitive funct...

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.

Study pinpoints link between sleep apnea, high blood pressure

Researchers at the University of Louisville found a link between sleep apnea and high blood pressure through protein changes in laboratory rats. The study suggests that the connection plays a significant role in developing high blood pressure during bouts of sleep apnea.

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.

Americans lack knowledge of ocular hypertension

A survey found that few Americans are aware of ocular hypertension, with only 41% recognizing it as a factor in glaucoma risk. Many individuals over 40 years old are unaware they need routine screening for the condition, despite being at increased risk.

Eye drops delay onset of glaucoma in people at higher risk

A recent study found that pressure-lowering eye drops reduced the development of primary open-angle glaucoma by over 50 percent. The study suggests that treating people with elevated eye pressure may delay or prevent glaucoma, particularly in those at higher risk due to age, ethnicity, or ocular characteristics.

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.

Preeclampsia linked with higher risk of preterm delivery

Research suggests that preeclampsia may decrease the risk of preterm delivery when a woman smokes, but negative effects persist even without clinical preeclampsia. Abnormal implantation of the fertilized egg in the uterus may also continue to affect pregnancy outcomes.

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.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

CONVINCE trial results unveiled at annual hypertension meeting

The CONVINCE trial demonstrated that a controlled-onset extended-release calcium channel blocker, COVERA-HS, can provide equivalent effects to standard care therapy in reducing cardiovascular events. The study found that over 84% of patients achieved blood pressure control after medication titration.

Meta Quest 3 512GB

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

Asian immigrants likely to see blood pressure rise

A study of nearly 2,000 Asian immigrants found that hypertension rates rise with duration of residence in North America. Immigrants who lived for four or fewer years had a prevalence below 3%, while those living ten or more years had over 13%.

Family history of hypertension is related to maladaptive behavioral responses

Research reveals that family history of hypertension is associated with exaggerated physiological responses to stress and learned maladaptive behavioral patterns. Offspring of hypertensive parents exhibit higher resting heart rates, increased blood pressure, and more negative verbal and nonverbal behaviors during stressful tasks.

Heavy drinkers bear the heavy burden of bleeding stroke

A new study has found that heavy drinkers are at a higher risk of bleeding stroke, with hypertension and genetic factors also contributing to the condition. The research, conducted by the University of Cincinnati College of Medicine, involved 107 individuals with subarachnoid hemorrhage (SAH) and 197 without stroke.

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.

Controlling blood pressure early prevents heart disease in elderly

Elderly individuals with untreated systolic hypertension are three times more likely to experience adverse cardiovascular events than those with normal blood pressure. Early treatment for high blood pressure significantly reduces cardiovascular risk, particularly among those free of detectable disease at study entry.

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.