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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

Obesity associated with depression and vice versa

A meta-analysis of 15 studies reveals a strong bidirectional association between obesity and depression, with obese individuals having a 55% increased risk of developing depression over time. The authors suggest that monitoring weight gain in depressive patients and mood in overweight or obese patients could lead to prevention, early d...

A new generation of rapid-acting antidepressants?

Researchers found that scopolamine, a muscarinic cholinergic receptor antagonist, reduced symptoms of depression within three days. The study also showed that participants experienced full symptom remission by the end of the treatment period.

Video games may help combat depression in older adults

Researchers found that exergames significantly improved mood and mental health-related quality of life in older adults with subsyndromal depression. The study suggests encouraging results from using video games to improve symptoms, with over one-third of participants experiencing a 50-percent or greater reduction of depressive symptoms.

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.

Stress hormone, depression trigger obesity in girls

Researchers found that depression is associated with spikes in cortisol levels for both boys and girls after stress tests. However, higher cortisol reactions to stress are only linked to obesity in girls. Early treatment of depression could help reduce stress and control obesity in this demographic.

Apple iPhone 17 Pro

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

Low-income urban mothers have high rate of postpartum depression

A study published in Pediatrics found that over half of low-income urban mothers met the criteria for a diagnosis of depression after childbirth. Researchers identified three reliable screening tools to detect depression accurately among this population, highlighting the need to adjust cutoff scores for optimal identification.

Don't worry, be happy! Positive emotions protect against heart disease

A major new study published in the European Heart Journal found that people who are usually happy and content have a lower risk of heart disease than those who tend to be unhappy. The study suggests that increasing positive emotions may help prevent heart disease, but more clinical trials are needed.

Depression and lack of concentration do not necessarily go together

A review of nearly 20 years of literature found that depression does not always lead to cognitive difficulties such as memory problems or difficulties concentrating and paying attention. Processing speed was the cognitive function most often affected by depression, with a slower capability when individuals are depressed.

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.

Financial hardship contributes to diagnosis anxiety

A new study found that women with medium or low income levels are more susceptible to anxiety and depression after being diagnosed with ductal carcinoma in situ (DCIS). Women with financial hardship may benefit from psychosocial interventions designed to accommodate their unique needs.

Depressed people feel more gray than blue

Researchers developed a color chart called The Manchester Color Wheel to study people's emotions. Depressed individuals tend to prefer gray, while anxious ones choose between positive and negative colors more frequently than healthy participants.

Moms' depression in pregnancy tied to antisocial behavior in teens

A longitudinal study found that pregnant mothers who experience depression are four times more likely to have children exhibiting violent behavior at age 16. The study suggests a link between maternal depression during pregnancy and increased antisocial behavior in children, with no apparent influence from family environment factors.

Early abuse tied to more depression in children

A study of over 500 low-income children found that early abuse can lead to more frequent and severe depression, with distinct cortisol regulation patterns. Children who experienced maltreatment before age 5 showed atypical cortisol production, indicating compromised stress systems.

Acupuncture found effective against depression during pregnancy

Researchers found acupuncture to be an effective treatment for depression during pregnancy, with participants experiencing significant symptom reduction and higher response rates. The study's results suggest that acupuncture could be a viable treatment option for pregnant women struggling with depression.

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

Excessive Internet use is linked to depression

A large-scale UK study found that people who spend too much time online are more likely to show depressive symptoms. Internet addiction was linked to higher incidence of moderate to severe depression in young people and adults.

Study: Many physicians not using established criteria

A new study found that many non-psychiatrist physicians and a substantial minority of psychiatrists reported infrequently using the DSM-IV criteria to diagnose major depressive disorder. This could lead to unnecessary medication prescriptions for patients who do not have major 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.

Severe complications of diabetes higher in depressed patients

A study published in Diabetes Care found that patients with depression are at a 36% higher risk of developing advanced micro-vascular complications, such as end-stage kidney disease or blindness. Depression is also linked to a 25% higher risk of macrovascular complications, including stroke and heart attack.

Treating depression by stimulating the pleasure center

A study found that deep brain stimulation (DBS) of the nucleus accumbens improved symptoms of depression and anxiety in patients with severe treatment-resistant depression. The procedure showed promising results with minimal side effects.

Psychodynamic psychotherapy brings lasting benefits, new study finds

A new study published by the American Psychological Association finds psychodynamic psychotherapy to be highly effective in alleviating mental health symptoms, with benefits persisting after treatment has ended. The therapy's focus on self-reflection and examining relationship patterns leads to substantial treatment benefits.

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.

Before or after birth, gene linked to mental health has different effects

Researchers found that expressing mutant DISC1 during prenatal periods, postnatal periods, or both led to distinct brain alterations and behaviors resembling schizophrenia or mood disorders. The study suggests that manipulating DISC1 expression timing may help develop new therapies for psychiatric disorders.

Few Americans with major depression receive adequate treatment

A study found that many Americans with major depression do not receive adequate treatment, with racial and ethnic groups facing disparities. Psychotherapy is more commonly used than pharmacotherapy, but individuals with specific ethnic backgrounds have lower odds of receiving concordant care.

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 saps endurance of the brain's reward circuitry

A new study at the University of Wisconsin-Madison suggests that depressed patients struggle to sustain activity in brain areas related to positive emotion and reward. Researchers found that despite normal initial levels of activity, depression impairs ability to maintain them over time.

Study identifies those elderly most at risk for major depression

Researchers pinpointed prime factors identifying elderly persons at high risk for developing major depression, including low-level depressive symptoms and poor social support. Preventive treatments hold promise for providing the greatest health benefit at the lowest cost.

Psychologist to examine childhood depression

Researcher Brandon Gibb is studying the causes of mental-health problems in kids and defining trajectories of risk for depression. He hopes to identify genetic, environmental, and psychological variables that contribute to depression in children.

Mastery of physical goals lessens disease-related depression and fatigue

A new study found that physical activity increases self-efficacy, which in turn reduces disease-related depression and fatigue. Higher levels of physical activity correspond to higher self-efficacy and lower levels of depression and fatigue, but the effect is reduced when controlling for self-efficacy.

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.

Most antidepressants miss key target of clinical depression

A new study reveals that most antidepressants miss the mark on a key brain protein called monoamine oxidase A (MAO-A), which is highly elevated during clinical depression. This finding has important implications for understanding why antidepressants don't always work, with potential benefits for developing more effective treatments.

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.

Antidepressant may change personality while relieving symptoms

A study found that antidepressants can change personality traits like neuroticism and extraversion while alleviating depressive symptoms. Individuals taking the medication reported significant decreases in neuroticism and increases in extraversion compared to those receiving placebo or cognitive therapy.

Fear of anxiety linked to depression in above-average worriers

Researchers found that anxiety sensitivity significantly predicted depression symptoms in above-average worriers. The fear of cognitive dyscontrol and publically observable anxiety symptoms specifically correlated with depression. Understanding this link may lead to new depression treatments by addressing anxiety sensitivity.

Burnout and mental distress strongly related to errors by US surgeons

A Mayo Clinic-led study found that nearly 9% of US surgeons reported making a major error in the past three months, with burnout and depression being key factors. The researchers suggest that reducing work hours may not be enough to limit errors unless addressing burnout is also prioritized.

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.

Burned out, depressed surgeons more likely to commit more major medical errors

A recent study by Johns Hopkins Medicine suggests that burned-out and depressed surgeons are more likely to report major medical errors. The research found a significant association between burnout, depression, and self-reported medical errors, highlighting the need for better support for surgeons struggling with mental health.

Motivational 'women-only' cardiac rehab improves symptoms of depression

A motivationally-enhanced cardiac rehabilitation program for women with coronary heart disease significantly improves depressive symptoms and adherence rates compared to traditional programs. The intervention, tailored to the needs of women and their stage of readiness, led to sustained improvements at a 6-month follow-up period.

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Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Depression as deadly as smoking, but anxiety may be good for you

A study found that depression increases mortality risk similar to smoking, but anxiety reduces it when combined with depression. Researchers suggest that help-seeking behavior may explain this pattern, and highlight the need for more attention on physical health in people with mental disorders.

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.

Psychiatric impact of torture could be amplified by head injury

A recent study found that head injuries can amplify the psychological impact of torture on survivors, with structural brain changes and more severe depression symptoms reported in those who experienced both. The research suggests that physical effects may help explain why standard therapies often don't work for torture survivors.

New therapy gives hope for very severe depression

A new study from University of Bonn suggests that deep brain stimulation can significantly improve depression in half of patients, who had previously not responded to other therapies. The treatment involves implanting electrodes in the nucleus accumbens, a key area of the brain's reward system.

Pregnant women risk early delivery from using psychiatric medication

A new study has found that pregnant women with a history of depression who use psychiatric medication are at increased risk of delivering prematurely. The research analyzed data from nearly 3,000 women and showed that medication use and depression were strongly linked to preterm delivery before 35 weeks' gestation.

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.

Study: depression can lead to inflated reports of physical symptoms

A recent study published in Psychosomatic Medicine found that individuals with depression tend to overreport physical symptoms. Researchers attribute this phenomenon to depressed individuals' recall of experiences differently, tending to ruminate and exaggerate negative emotions.

Why antidepressants don't work for so many

Researchers found that depression-related genes and stress-related genes have almost no overlap, indicating that chronic stress does not cause the same molecular changes as depression. This finding challenges the long-held belief that stressful life events are a major cause of depression.

Light at night linked to symptoms of depression in mice

A study by Ohio State University researchers found that mice housed in a lighted room for 24 hours a day exhibited more depressive symptoms than those with normal light-dark cycles. However, mice that lived in constant light but could escape showed less evidence of depressive symptoms.

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.

Targacept's P.2b depression study succeeds: 6-point difference on HAM-D

In the Phase 2b trial, TC-5214 outperformed placebo in treating major depressive disorder, achieving high statistical significance on all secondary outcome measures. The study demonstrated a favorable tolerability profile and potential as an augmentation treatment for SSRI-resistant depression.

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.