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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

Genetics and environment impact familial depression

A study found a correlation between serotonin gene alleles and brain thinning in individuals at high familial risk of depression. Those with the 'S' allele had lower brain plasticity and were more likely to develop depression when exposed to stressors.

Depression experts question effectiveness of stress hormone drug

Research at Newcastle University has questioned the effectiveness of metyrapone, a drug suggested to treat depression, finding it inadequate for treatment-resistant patients. The study suggests that depression may be more complex than simply being a consequence of high stress hormone levels.

Poverty linked to childhood depression, changes in brain connectivity

Researchers found that children raised in poverty have weaker connections between the hippocampus, amygdala, and other brain areas, increasing their risk of depression. The study highlights the importance of early intervention to foster positive brain development and reduce adverse outcomes.

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Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Inflammation markers could guide depression treatments

Depression patients with systemic inflammation have elevated glutamate levels in motivation regions of the brain, which may guide personalized treatment. Elevated glutamate and myo-inositol levels are associated with anhedonia and slow motor function, suggesting a potential target for depression treatment.

Long-term opioid use associated with increased risk of depression

A recent study published in Annals of Family Medicine has found that long-term opioid use is associated with an increased risk of developing new-onset depression. The research, led by Dr. Jeffrey Scherrer, analyzed data from over 70,000 patients and found that longer duration of opioid analgesic use was linked to new-onset depression.

Mental health conditions common among bariatric surgery patients

A meta-analysis found that 23% of bariatric surgery candidates have a current mood disorder, with depression being the most common condition. Bariatric surgery is associated with postoperative decreases in depression prevalence and severity, but not necessarily eating disorders or anxiety.

Apple iPhone 17 Pro

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

January/February 2016 Annals of Family Medicine tip sheet

Research studies examine the viability of small, solo family practices in rural areas, finding they often provide vital care. Large independent primary care groups are also shown to be attractive options for physicians and patients, offering resources and autonomy while reducing costs.

Brain tumor revealed by treatment-resistant depression

A woman with treatment-resistant depression was found to have a brain tumor after symptoms persisted for six months despite antidepressant and anti-anxiety medication. The tumor, located in her left frontal lobe, was later treated successfully with emergency surgery, resulting in the disappearance of depressive symptoms.

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Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Inflammation can fan the flames of depression

Researchers at Rice University and Ohio State University found that chronic inflammation is linked to depression, with concentrations of inflammatory markers CRP and IL-6 elevated by up to 50% in patients. Activities like yoga, meditation, NSAIDS, and exercise can help treat depression caused by chronic inflammation.

Early childhood depression alters brain development

Children who suffer from clinical depression as preschoolers have abnormally developed gray matter, affecting emotion regulation and brain maturation. The study found a steeper drop-off in gray matter volume and thickness with increasing depression severity.

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.

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.

Depression contributes to preventable hospitalizations in Danish study

Individuals with depression are more likely to experience preventable hospitalizations for common chronic conditions, such as diabetes and congestive heart failure. Researchers found that those with depression were 2.35-times more likely to be hospitalized for preventable conditions than without depression.

Study 'opens gate' to understanding depression

A new scientific model developed by Michigan State University researchers provides a better understanding of depression and its complex drivers. The model, funded by the National Institute of Mental Health, incorporates various biological, psychological, social, and environmental factors that contribute to the illness.

Antidepressant medication protects against compounds linked to dementia

A Loyola University Medical Center study found that antidepressant escitalopram reduces levels of two neurotoxic compounds associated with memory loss and dementia in severely depressed patients. The study suggests a potential link between depression and increased risk of neurodegenerative diseases.

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.

Mental health risk for new dads

Researchers found anxiety before and after a child arrives is just as prevalent as depression, affecting around one in ten men and half the rate for women. Mental health expert Dr. Liana Leach highlighted the importance of early intervention to reduce symptoms and duration.

Inflammation linked to weakened reward circuits in depression

High levels of inflammation markers in blood are connected to stubborn symptoms of depression, such as anhedonia. Researchers believe blocking inflammation or its effects on the brain may reverse anhedonia in depressed individuals who fail to respond to antidepressants.

Light therapy effective for depression: UBC study

A UBC study published in JAMA Psychiatry found that light therapy can effectively treat non-seasonal depression and improve the overall wellbeing of people suffering from the disease. The research, which followed 122 patients, showed that light therapy was most beneficial when used with antidepressants.

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 finds surprising links between bullying and eating disorders

A study published in International Journal of Eating Disorders found a surprising link between bullying and eating disorders, with victims and bullies alike at increased risk. Children who were victims of bullying had nearly twice the risk of displaying symptoms of anorexia and bulimia compared to those not involved in bullying.

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.

Computer assisted CBT provides little or no benefits for depression

A large study found that computer-assisted cognitive behavioural therapy (CBT) provides little or no benefits for depression, with low patient adherence and engagement being the main reason. The study suggests that routine promotion of computer-based CBT should be reconsidered due to its ineffectiveness as a treatment.

Brain imaging reveals possible depression signature in traumatic brain injury

Researchers at the Center for BrainHealth have identified a potential brain-based biomarker for depressive symptoms in individuals with traumatic brain injury. They found that those with TBI and depression exhibit increased brain connectivity between multiple regions, including the amygdala, which is responsible for emotional processin...

In preventing return of winter blues, talk outshines light, new study says

A new study published in the American Journal of Psychiatry suggests that cognitive-behavioral therapy (CBT) is more effective than light therapy in preventing relapse of seasonal affective disorder (SAD). CBT was found to be significantly better at preventing depression recurrence, with only 27% of subjects experiencing symptoms compa...

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.

Researchers show how positive stimuli provide benefits to the distracted brain

Researchers at the Beckman Institute found that positive stimuli, such as cute puppies, increase brain activity in areas involved in emotion control and working memory. Positive distractions do not interfere with task completion, unlike negative distractions like barking dogs, which decrease activity in these regions.

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.

New genetic risk marker for late-life depression

A new study finds that the APOE epsilon 4 allele is associated with an increased risk of late-life depression, even after controlling for Alzheimer's disease. The presence of this allele predicts future depression in older adults, highlighting its potential as a marker for prevention and early detection.

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.

Celestron NexStar 8SE Computerized Telescope

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

New depression diagnosis and treatment

Researchers from Hebrew University of Jerusalem suggest that microglia cells may be a key to causing depression, leading to potential new treatments. The study proposes a personalized medical approach using drugs that restore normal microglia function to diagnose and treat depression.

Meta Quest 3 512GB

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

Exercise and stop smoking to improve depression after heart attack

A large study found that exercise and stopping smoking had the strongest association with improved depression after a heart attack. Patients who quit smoking had a 2.3 greater chance of improving their depression, while those who were already physically active at the beginning of the study were more likely to improve their symptoms.

Expectant dads get depressed too

A recent study published in the American Journal of Men's Health found that 13.3% of expectant fathers experience elevated levels of depressive symptoms during their partner's pregnancy. The research highlights the importance of depression screening and early prevention efforts for men who are about to become parents.

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.