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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

National survey estimates prevalence of type 2 diabetes among adolescents

A national survey found that approximately 134,071 US adolescents have type 2 diabetes, with 39,005 having the condition and 2,769,736 having impaired fasting glucose levels. The study suggests a significant public health concern among this age group due to the high conversion rate from impaired glucose tolerance to type 2 diabetes.

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.

A biosensor layered like lasagna

A new biosensor technology has been developed that uses static electricity to layer proteins on carbon nanotubes, allowing for precise detection of biological chemicals and environmental agents. The technique enables enzymes to self-assemble in a layer-by-layer manner on the nanotube, resulting in improved sensitivity and specificity.

Losartan prevents life-threatening insulin resistance in burn injuries

Researchers found that administering losartan to rats with insensate third-degree burns reversed the insulin resistance caused by the burn injury, returning glucose levels to normal. The study suggests that blocking the renin-angiotensin system may be a key to preventing this condition in severe burn patients.

Liver signal critical for insulin's brain action

Researchers have found that liver signal STAT3 mediates the effects of brain insulin, which regulates glucose balance and insulin response. This discovery provides a potential therapeutic target for type 2 diabetes, a condition characterized by impaired glucose production in the liver.

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.

UCLA researches heart disease-glucose connection

A study by UCLA researchers found that men with cardiovascular disease may benefit from lower blood sugar levels, but women's risk of death increases with higher glucose levels. The research analyzed data from over 1,200 patients and suggested that there is no 'normal' blood sugar level for men with heart disease.

Diabetic hearts make unhealthy switch to high-fat diet

Researchers found that diabetic patients' heart muscle uses about half as much glucose and four times more fat for energy than non-diabetics. This increased reliance on fat can lead to inflammation, cell death, and heart dysfunction.

Darkness unveils vital metabolic fuel switch between sugar and fat

A study by the University of Texas Health Science Center at Houston has identified 5'-AMP as a key molecular mediator that switches mice from burning glucose to burning fat in response to darkness. This switch is also observed in active mammals, such as bears and humans, and may lead to new therapies for obesity and type 2 diabetes.

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: December 22, 2005

Researchers found that expressing active MMP-9 in macrophages within atherosclerotic plaques leads to their rupture, causing blood clots and reduced blood flow. Additionally, the inactivation of focal adhesion kinase in cardiomyocytes promotes eccentric cardiac hypertrophy and fibrosis in mice.

Tight glucose control cuts heart disease by half in type 1 diabetes

Research shows that tight glucose control significantly reduces heart disease and damage to the eyes, nerves, and kidneys in people with type 1 diabetes. The study found a 42% lower risk of cardiovascular events and a 58% lower risk of serious events like heart attacks or strokes.

Gladstone study links Alzheimer's with toxic protein fragments

Researchers found that specific fragments of the apoE4 protein are neurotoxic and accumulate in mitochondria, leading to neuronal death characteristic of Alzheimer's disease. Blocking interaction of these fragments with mitochondria may be a potential new strategy for inhibiting detrimental effects.

JCI table of contents: December 1, 2005

In a study published in the Journal of Clinical Investigation, Columbia University researchers discovered that replacing leptin in lean individuals who lost weight restored fat mass and reversed metabolic changes. The findings suggest that therapeutics targeting the leptin signaling pathway may assist in maintaining reduced body weight...

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.

Unexpected function for a key regulator of blood glucose levels

Scientists at the Salk Institute discovered a key cellular switch that instructs the liver to produce more glucose when blood sugar levels run low. The switch, called TORC2, limits its own activity to prevent excessive glucose production, which is missing in diabetic individuals.

How protein-rich diets curb hunger

A study of rats reveals that protein-enriched diets induce glucose synthesis in the small intestine, which is sensed by the liver and brain, ultimately leading to a decline in food consumption. This finding suggests that glucose metabolism in the small intestine may be a new target for treating food intake disorders.

Key regulator of blood glucose levels discovered

Researchers at the Salk Institute have identified a new target for diabetes treatment: the protein TORC2. TORC2 regulates glucose production in liver cells and its activation can improve insulin sensitivity. The discovery holds promise for developing more effective diabetes medications.

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.

Short-term bio sensors monitor from afar

Researchers at Penn State developed implantable glucose sensors to monitor troops' metabolic health in the field. The sensors can detect glucose, oxygen, lactate, and pyruvate levels, providing valuable insights into a soldier's overall metabolic picture.

The link between fasting and acute attacks of porphyria

A team of researchers has discovered a molecular missing link that explains why fasting brings on acute attacks of the genetic disease hepatic porphyria. Fasting increases levels of PGC-1a, which regulates the activity of an enzyme in the heme production pathway, leading to toxic buildup of precursor molecules.

Bacteria are key to 'green' plastics, drugs

Researchers at Rice University have developed a bacteria that produces succinate, a key chemical precursor for 'green' plastics and drugs. The breakthrough could lead to the creation of sustainable products using renewable resources like grain sorghum.

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.

Life-extending protein keeps blood sugar in check

Researchers found that Sirt1 protein enhances glucose-stimulated insulin secretion in mice, improving glucose tolerance. The study suggests therapeutic interventions for the prevention and treatment of diabetes.

Meta Quest 3 512GB

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

Diuretics effective for people with diabetes and high blood pressure

A recent study published in Archives of Internal Medicine found diuretics to be equally protective against fatal coronary heart disease or non-fatal heart attacks among people with diabetes. Additionally, diuretics were shown to be more effective in lowering systolic blood pressure and reducing the risk of congestive heart failure.

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.

Fat's fate depends on its source

A new study published in Cell Metabolism found that normal metabolism requires so-called "new" fat to maintain glucose, lipid, and cholesterol homeostasis. The researchers discovered that old fat stores alone failed to set critical metabolic pathways in motion, leading to a marked decline in gene activity.

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 fat is needed to clear old fat from the system

Genetically engineered mice with a missing enzyme in their livers developed fatty liver disease when placed on a zero-fat diet. The study found that consuming new fat, which is produced in the liver or consumed in food, helps regulate fat burning and prevents liver damage.

Diabetes and pizza: Slow and steady insulin delivery wins the race

A new study found that spacing out insulin given by an insulin pump in two doses, one over eight hours, can keep glucose levels more favorable than a single dose or double dose taken over shorter periods. This method showed improved blood glucose control after a pizza meal without causing hypoglycemic events.

FGF-21 finds itself as a new therapy for type 2 diabetes

Researchers discovered that FGF-21 regulates glucose uptake in human fat cells, significantly reducing plasma glucose levels and triglycerides. FGF-21 also protected animals from diet-induced obesity, providing evidence for its therapeutic potential in treating type 2 diabetes.

Propensity for obesity, diabetes, may occur in utero

Researchers found that rat fetuses exposed to a high-carbohydrate diet in utero developed increased insulin levels, appetite stimulation, and obesity. The study suggests that such malprogramming could be interrupted if the mother's weight and insulin levels are normalized before pregnancy.

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.

Drugs targeted at muscle cells

Researchers have discovered two new experimental drugs that target peroxisome proliferators-activated delta receptors (PFAARä) in muscle cells, increasing glucose absorption and boosting energy production. The findings offer a potential alternative to insulin therapy for patients with Type 2 diabetes.

Treatment of sleep apnea lowers glucose levels in diabetics

A study by University of Illinois Chicago researchers reveals that continuous positive airway pressure therapy can significantly reduce glucose levels in diabetic patients. This reduction in glucose levels can help prevent late-stage complications such as cardiovascular and kidney disease.

Probable trigger of kidney disease in diabetics identified

Scientists have made a breakthrough in understanding diabetic nephropathy by identifying CD36 as the probable trigger of kidney disease in diabetics. High glucose levels cause a change on the surface of cells, triggering the production of CD36, which leads to kidney cell death.

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.

Diabetes' link to obesity broken in mice

Researchers genetically altered mice to resist obesity but still develop early signs of diabetes, revealing the complex network of factors leading from obesity to diabetes. By applying a drug treatment, they increased insulin sensitivity, a primary goal of diabetes treatment.

JCI table of contents

Researchers propose a new antiviral therapy targeting the smallpox growth factor, demonstrating effectiveness in lowering morbidity and mortality in infected mice. In another study, human bone marrow-derived stem cells are shown to regenerate myocardium after myocardial infarction, providing a potential approach for heart repair.

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.

Carbon nanotubes yield a new class of biological sensors

Researchers at Illinois have developed a new class of biological sensors using single-walled carbon nanotubes. These sensors can detect glucose concentrations in human tissue, providing potential applications for diabetes management and other medical conditions.

Sleeping, waking, ... and glucose homeostasis

A mouse study revealed that the molecular clock genes Bmal1 and Clock play a crucial role in regulating blood sugar levels. Disrupting these genes led to impaired glucose regulation, even with insulin treatment. The study suggests that our internal circadian clock may influence blood sugar control beyond diet.

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.

OHSU study: Bacterial switching mechanism key to survival

Researchers at OHSU have determined the structural basis underlying a crucial mechanism that allows gram-positive bacteria to adapt to available energy sources. This finding could lead to the development of new antibiotics that disrupt this mechanism, making bacteria more susceptible to counter-attacks by the human body.

ESC Congress 2004: Diabetes and the heart

The Euro Heart Survey on diabetes and the heart found abnormal glucose regulation is common in patients with coronary artery disease. Patients with diabetes face a dismal prognosis, but those without known diabetes can benefit from improved treatment standards.

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.

Nevada researcher re-ignites mammal reproduction debate

A recent study by a University of Nevada researcher suggests that glucose levels in female mammals may influence the sex of their offspring, challenging a long-standing hypothesis in evolutionary biology. The study's findings have significant implications for wildlife conservation and agriculture production.

Digital evolution reveals the many ways to get to diversity

A team of scientists used artificial life to study evolution and diversity in nature, finding that there are limiting effects of productivity in finite environments. This research provides insights into the ecological relationship between environmental productivity and species diversity.