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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

Plastic and reconstructive surgery -- in brief

A new study suggests that US health care spending is unlikely to decrease without significant restrictions and limitations. The study also highlights the importance of managing risks associated with common medications used by cosmetic surgery patients, including antidepressants and herbal supplements.

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.

Expectant brains help predict anxiety treatment success

High levels of amygdala activity predict hypersensitivity to anticipation, while anterior cingulate cortex activity predicts response to antidepressant medication. These findings have important implications for treating anxiety disorders and may lead to personalized treatment approaches.

Tweens and teens double use of diabetes drugs

A recent study by Saint Louis University reveals a significant increase in the use of type 2 diabetes medications among American tweens and teens between 2002 and 2005. The study also found increased utilization patterns for blood pressure, cholesterol, asthma, ADD/ADHD, depression, and other medications.

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.

Learning how not to be afraid

Mice conditioned for safety display reduced anxiety in stressful situations, comparable to antidepressant medications. The study reveals learned safety influences brain development, including increased expression of brain-derived neurotrophic factor and dopamine neurotransmitters.

Millisecond brain signals predict response to fast-acting antidepressant

Researchers discovered an electromagnetic biomarker that predicts a patient's response to ketamine, a fast-acting antidepressant. Increasing activity in the anterior cingulate cortex hub near the front of the brain while viewing flashing frightful faces correlates with improved symptoms after receiving ketamine.

Getting help for depression and anxiety has significant long-term benefits

A study by University of Alberta researcher Ian Colman found that individuals who receive treatment for depression and anxiety are three times less likely to experience a relapse in the next decade. The research also highlights the significant economic benefits, as the estimated annual cost of depression in Canada is $14 billion.

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.

Neurogenesis in the adult brain: The association with stress and depression

The adult brain's capacity for neurogenesis is closely tied to stress and depression, with research showing that chronic stress can inhibit new cell growth in the hippocampus. However, antidepressant treatment has been shown to stimulate neurogenesis, suggesting a potential therapeutic target for treating major depressive disorders.

Antidepressants in suicide prevention

Recent reports suggest antidepressants might exacerbate suicidal tendencies, leading to increased scrutiny of their efficacy. Studies show that depression is a significant risk factor for suicide, with over 60% of completed suicides linked to mood disorders.

Sex differences seen in response to common antidepressant

A new study has found that women are 33 percent more likely to achieve full remission of their depression symptoms with the commonly used antidepressant citalopram compared to men. The study, which involved over 2,800 participants, controlled for various factors and suggests a biological basis for the difference in response.

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.

Potential new targets for antidepressant medications

A new study suggests that blocking the corticotrophin releasing factor-1 (CRF1) receptor and the vasopressin-1B (V1B) receptor may retain their efficacy in treating depression, even when neurogenesis is disrupted. The researchers found that restoration of the stress axis may be key to how these new antidepressant approaches work.

Apple iPhone 17 Pro

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

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.

Formula predicts emergency admissions in adults older than 40

Researchers developed a predictive model using clinical data to identify individuals aged 40 and older who are at high risk of emergency hospital admissions. The model considers various factors such as age, gender, social deprivation, medication use, and previous hospitalizations.

Some drugs increase risk of falling: UNC researchers

Researchers at UNC have identified specific prescription drugs that increase the risk of falls for patients aged 65 and older who take four or more medications. These medications, including antidepressants and painkillers, work to depress the central nervous system, making patients less alert and slower to react.

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.

Antidepressants in suicide prevention

Despite controversy over potential side effects on suicidal behaviour, antidepressant use in western countries correlates with declining suicide mortality. Experts like Professor Erkki Isometsä argue for a balanced view of clinical and epidemiological facts to inform treatment decisions.

Falls, depression and antidepressants in later life

A study found that depression and antidepressants significantly increase the risk of falls among older people. SSRIs were associated with a 66% higher risk of falls. Effective prevention programs include home assessments and modifications to reduce hazards. Family members must be involved in fall prevention strategies.

Higher co-payments reduce use of antidepressants

New research from Brandeis University finds that multi-tiered formularies requiring higher copayments for non-preferred medications reduce the use of antidepressants. The study, which analyzed data from a large nonprofit managed care organization, found that out-of-pocket spending increased while health plan spending per user decreased.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

No link between antidepressants and birth defects

Researchers found that antidepressant use during the first trimester of pregnancy is not associated with an increased risk of birth malformations. The study used data from the Quebec Pregnancy Registry and analyzed records of 2,329 new mothers diagnosed with psychiatric disorders.

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.

Antidepressants enhance neuronal plasticity in the visual system

The study found that antidepressants like fluoxetine enhance neuronal plasticity in the visual system by increasing brain-derived neurotrophic factor (BDNF), allowing for improved vision in individuals with amblyopia. Environmental stimuli, such as rehabilitation or therapy, are required to guide the rearrangement of cortical connections.

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.

Treating SSRI-resistant depression

A new report suggests that switching from a selective serotonin reuptake inhibitor (SSRI) to a non-SSRI antidepressant may be more effective for treating symptoms of major depressive disorder. However, the effectiveness and tolerability of this approach varied depending on the individual.

A link between antidepressants and type 2 diabetes

A study published in Diabetes Research & Clinical Practice found that people with depression taking antidepressants have a 30% increased risk of developing type 2 diabetes. The risk was highest for those using two types of therapies simultaneously, such as tricyclic antidepressants and selective serotonin reuptake inhibitors.

UIC researchers may have found test for depression

Researchers at University of Illinois Chicago discovered a new biomarker for depression by analyzing the location of a protein in the brain. The study found that depressed individuals have a greater proportion of Gs alpha protein confined to lipid rafts, which can be used to predict the efficacy of antidepressant therapy.

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.

Meta Quest 3 512GB

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

Who benefits from antidepressants? US health inequities

A new study published in PLoS Medicine suggests that antidepressants only provide clinically significant benefits for a small group of severely depressed patients. However, even among these patients, the improvement is not very great, and depressed people can still improve without chemical 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.

Researchers explore the antidepressant effects of ketamine

A new study finds that ketamine's antidepressant effects are mediated by its ability to increase AMPA receptor stimulation, suggesting drugs enhancing this function may have rapid antidepressant properties. Researchers now aim to develop AMPA-boosting drugs without ketamine's side effects.

Older women more susceptible to depression than older men

A new study by Yale School of Medicine researchers found that older women are more prone to depression and less likely to die from it compared to older men. The study, which evaluated 754 individuals aged 70+, found that women were more likely to experience symptoms of depression and remain depressed over time.

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.

Genetic difference predicts antidepressant response

Researchers identified genetic variants that affect the efficacy of antidepressants, such as citalopram and venlafaxine. These variants influence the access of drugs to the brain by impacting protective transporter proteins like P-gp.

Selective reporting of antidepressant trials exaggerates drug effectiveness

A study found that selective publication in antidepressant trials significantly overstates their effectiveness, with nearly all positive studies being published and most negative ones not. However, when combining all studies using meta-analysis, each drug was superior to a placebo, but less effective than reported.

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.

Natural human hormone as the next antidepressant?

A new study published in Biological Psychiatry suggests that erythropoietin, a natural human hormone, may have antidepressant properties. The study found that erythropoietin regulated emotional responses and had neuroprotective effects on neural function, supporting its potential as a treatment strategy for depression.

Study shows new strategy for developing antidepressants

Researchers have discovered a new approach to developing antidepressants by targeting novel brain molecules, which can lead to faster treatment and relief from depression. The study found that patients responded within two hours and 70% showed improvement within 24 hours.

Newly-identified exercise gene could help with depression

Researchers at Yale University discovered a novel gene, VGF, that plays a crucial role in exercise-induced antidepressant effects. The study found that enhancing VGF expression can function like a powerful anti-depressant, providing a potential new treatment target for depression.

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.