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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

Fatigue common after myocardial infarction

Half of myocardial infarction patients report onerous fatigue four months after the event, with depression symptoms also common. Patients' perceptions of their illness play a crucial role in determining prognosis and treatment effectiveness.

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.

How glucocorticoid drugs protect the heart

Researchers found that glucocorticoids induce production of PGD2, which protects rodent hearts from ischemia/reperfusion injury. Synthetic glucocorticoids may be more beneficial for humans following a heart attack than traditional ones.

Study compares formulations of 3 aspirin types

A new study comparing three different types of aspirin has found that chewable aspirin consistently shows greater and more rapid absorption, potentially leading to improvements in heart attack care. Researchers measured blood levels of aspirin after administering regular and chewed aspirin to volunteers.

Apple iPhone 17 Pro

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

Study finds African-Americans at greater risk after PCI

A study found African-Americans at greater risk after PCI with significantly worse outcomes, despite researchers' efforts to provide optimal care. Possible explanations include delayed treatment, advanced coronary disease, and poor medication adherence.

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.

Arrythmia associated with heart attacks linked to higher risk of death

Researchers found that heart attack patients who develop serious arrhythmia during procedures face a significantly higher risk of death for several months after the procedure. The study suggests that these episodes complicate outcomes and affect a patient's chance of a successful outcome.

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.

Cardiac patients trial home-based rehabilitation

Patients with cardiac health problems are trialing a new, home-based rehabilitation system that uses mobile phone and web technology to promote healthy lifestyles. The program aims to improve access and completion rates for cardiac rehabilitation, with personalized goals and support via text messages and video conferencing.

Heart attacks: The tipping point

A study published in the Biophysical Journal has discovered a method to predict heart attacks by measuring electrical activity coupling between two types of heart muscle cells. This can help doctors and patients buy time before an attack occurs.

Moms who breastfeed less likely to develop heart attacks or strokes

Postmenopausal women who breastfed for at least a month had lower rates of diabetes and high cholesterol. Longer durations of breastfeeding resulted in significant reductions in heart attack risk, with those nursing for over a year being 10% less likely to develop cardiovascular disease.

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 imaging technology reveals prevalence of 'silent' heart attacks

Researchers at Duke University Medical Center used new imaging technology to discover nearly 200,000 people in the US suffer 'silent' heart attacks each year. These unrecognized myocardial infarctions are linked to a surprisingly high risk of untimely death and may be more common than previously believed.

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.

Molecule prompts damaged heart cells to repair themselves after a heart attack

Researchers at UT Southwestern Medical Center found that the protein Thymosin beta-4 initiates migration of heart cells and blood vessel growth after a heart attack, encouraging new growth and repair of damaged heart cells. The molecule affects developmental gene expression as early as 24 hours after systemic injection.

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.

The more oral bacteria, the higher the risk of heart attack, UB study shows

A University at Buffalo study reveals that two oral pathogens, but the total number of germs, are associated with an increased risk of heart attack. The study found that patients harbored more periodontal bacteria than controls, and that an increase in the number of different species also elevated heart attack odds.

A missing enzyme conveys major heart protection in pre-clinical work

Researchers at Duke University Medical Center discovered a missing enzyme that can resist the normal effects of a heart attack, allowing mice to retain nearly normal heart function. The findings suggest a potential therapy for stimulating blood vessel growth and preventing future attacks.

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.

Study answers question of timing in use of eptifibatide

The study found that administering eptifibatide in the emergency room or during procedures to open blocked arteries does not significantly affect patient outcomes for those at high risk of complications after a heart attack. Researchers also noted an association between earlier use of eptifibatide and non-life-threatening bleeding.

A possible risk group for statin use

A study of over 1,000 CAD patients found that high PLTP levels increased the risk of heart attack in statin users. Elevated PLTP levels may blunt statin benefits, according to researchers.

Inhaling a heart attack: How air pollution can cause heart disease

Research suggests that air pollution is a significant contributor to heart disease, particularly among the elderly, those with coronary artery disease, diabetics, women, and obese individuals. Exposure to particulate matter can increase blood pressure, activate enzymes that cause plaque rupture, and lead to a heart attack.

Fluke 87V Industrial Digital Multimeter

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

New target for heart failure therapy identified

Researchers at Thomas Jefferson University identified a novel signaling pathway mediating aldosterone production, which promotes heart failure. Blocking beta-arrestin-1 could lead to lower aldosterone levels and alleviate negative remodeling processes in the injured heart.

Embargoed news from Annals of Internal Medicine

The US Preventive Services Task Force (USPSTF) recommends taking aspirin in at-risk patients to prevent heart attacks and strokes. However, the quality of care in nursing homes remains suboptimal, and creating a specialized physician training program may help address this issue.

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.

Traffic exposure may have a triggering effect on heart attack

A German study found that people who have had a heart attack are more than three times as likely to have been in traffic within an hour of their symptoms. Driving or riding in heavy traffic poses an additional risk of eliciting a heart attack, especially for females, elderly males, and those with a history of angina.

Simple test helps predict heart attack risk

Researchers found that up to 45% of individuals without known heart disease had abnormal ankle brachial index values, indicating peripheral arterial disease. This could improve cardiovascular risk prediction and identify high-risk patients for intensive medical therapy.

JCI online early table of contents: March 9, 2009

Two studies found that SOX9 renders melanomas sensitive to retinoic acid, stopping tumor growth and offering new hope for effective treatment. Additionally, researchers identified two enzymes crucial for ureter-bladder connection during development, which may hold key to treating congenital anomalies.

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.

Embargoed news From Annals of Internal Medicine

A new study in Annals of Internal Medicine found that patients connected to a specific primary care physician are more likely to receive guideline-consistent care than those without a connection. Researchers also discovered that connectedness was associated with smaller disparities in screening rates, but not race or ethnicity.

Stenting not necessary in late treatment of heart attacks

A new study by Duke University Medical Center reveals that delayed treatment for heart attacks using drugs alone is as effective as treatment with stents, offering a cheaper and less invasive option. The research found modest benefits in reducing chest pain but no long-term quality of life difference between the two approaches.

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.

Does gene show link between migraine and stroke or heart attacks?

A new study has found a potential link between a gene variant and the risk of stroke and heart attacks in women who experience migraines. Women who carried certain genotypes were found to be at double the risk of stroke and heart attacks, while those with other genotypes were not. Further research is needed to confirm these findings.

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.

Smokers putting their loved ones at risk of heart attacks

Researchers found that half of men with high cotinine levels lived with a partner who smoked, increasing their risk of heart attacks. Despite declining smoking rates in the UK, living with a smoker remains a significant risk factor for non-smokers.

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.

Study proves that practice makes perfect in PCI for heart attack

New research published in JACC found that patients have a better chance of survival when both their hospital and physician have a strong track record in treating heart attacks with angioplasty and stenting. High-volume hospitals and physicians performed significantly better, with lower risks of in-hospital death.

Celestron NexStar 8SE Computerized Telescope

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

Bleeding hearts revealed with new scan

Researchers capture images of bleeding inside heart muscle after heart attack using MRI scans, finding correlation between bleeding and extent of heart damage. Patients with larger heart attacks show more significant bleeding and poorer recovery chances.

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.

Most heart attack patients' cholesterol levels did not indicate cardiac risk

A new national study shows that nearly 75 percent of patients hospitalized for a heart attack had cholesterol levels within recommended targets, but still at high risk. The study suggests that lowering guideline targets for LDL cholesterol and developing better treatments to raise HDL cholesterol may help reduce the number of patients ...