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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

What are the most effective strategies for secondary suicide prevention?

The article discusses different interventions for secondary suicide prevention, focusing on high-risk patients with psychiatric illnesses. The authors argue that physicians need to be taught about the association between mental disorders and suicide and should not hesitate to ask people about their thoughts of suicide.

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

Antidepressants in pregnancy increase risk of miscarriage

A new study published in CMAJ found a significant association between antidepressant use during pregnancy and an increased risk of miscarriage. The study, which analyzed data from over 5,000 women, found that selective serotonin reuptake inhibitors (SSRIs) were associated with a higher risk of miscarriage, particularly at higher doses.

Animal study reveals new target for antidepressants

Researchers identified a key receptor in the brain that influences serotonin-related antidepressants, providing a potential new target for treatment. The discovery could lead to more effective and targeted treatments for depression and anxiety with fewer side effects.

Magnetic stimulation scores modest success as antidepressant

A new study suggests that magnetic stimulation therapy produced significant antidepressant effects in a subgroup of treatment-resistant patients, with remission rates of 14% compared to 5%. The treatment has few side effects and may be an effective alternative for those who don't respond to current medications.

Study finds high rates of at-risk drinking among elderly adults

A recent study by researchers at UCLA Health Sciences has found that over a third of drinkers aged 60 and older consume excessive amounts of alcohol, posing health risks. The study also highlights demographic factors, such as age, education level, and income, that contribute to at-risk drinking among the elderly.

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GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Antidepressants as treatment immediately following a stroke?

A study at the Buck Institute for Age Research found that drugs promoting neurogenesis can lessen the severity of stroke and improve function in rodents. The researchers suggest these drugs, including antidepressants and mood stabilizers, may be suitable for human clinical trials to explore their potential benefits.

Depression: Antidepressants beneficial in physically ill patients

A systematic review of 51 studies found antidepressants to be more effective than placebos in treating depression in physically ill patients. However, adverse effects such as sexual dysfunction and dry mouth were more commonly experienced by those receiving treatment.

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.

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CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Melatonin precursor stimulates growth factor circuits in brain

Researchers discovered that N-acetylserotonin, a melatonin precursor, activates the same brain growth factor circuits as BDNF, potentially explaining its antidepressant activity. This finding suggests new targets for depression treatment and may also shed light on neurodegenerative diseases.

Antidepressant may result in improved cognitive function after stroke

Patients taking antidepressant escitalopram experienced improved cognitive recovery following a stroke, outperforming those on placebo or in problem-solving therapy. This study suggests that escitalopram may be effective in promoting post-stroke recovery, despite being well-tolerated and not significantly affecting depressive symptoms.

Common antidepressant drugs linked to lactation difficulties in moms

A new study links commonly used antidepressants to delayed lactation in postpartum women. The medication's impact on serotonin regulation in the breast may contribute to this issue. Researchers call for more human research before making specific recommendations regarding SSRI use during breastfeeding.

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

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.

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SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Antidepressants cut risk of hospital readmission for suicidal youth

A new study found that antidepressant medication during inpatient treatment can significantly reduce the risk of hospital readmission among suicidal adolescents. The research also highlights concerns over the use of multiple medications in this population, which was associated with a three-fold increased risk of readmission.

Antidepressants may increase risk of stroke and death

A study of over 136,000 postmenopausal women found a 45% higher risk of stroke and a 32% higher risk of death among those taking antidepressants compared to non-users. The researchers note that while the overall risk is small, it can have significant implications for large patient populations.

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Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

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.

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.

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.

Psychotropic medications associated with risk of falls in older adults

A meta-analysis of 22 studies found that sedatives and hypnotics, antidepressants, and benzodiazepines significantly increase the risk of falling in older adults. The study suggests that psychotropic medications contribute to falls and fracture risks, emphasizing the need for careful medication management in elderly populations.

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.

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

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Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Antidepressant use increasing in the United States

The rate of antidepressant treatment increased significantly in the US between 1996 and 2005, from 5.84% to 10.12%, affecting racial and ethnic minorities at lower rates, with 18-69 year olds being most likely to use these medications

Almost 1/4 of Spanish women take antidepressants

A study by researchers from four Madrid-based health centres found that family conflict is not a significant factor in the use of psychopharmaceuticals among Spanish women. The results show that 24% of women take antidepressants, with benzodiazepines used by 30.6%, primarily for sleep aid.

Dry mouth linked to prescription and over the counter drugs

Dry mouth, caused by decreased salivary function, affects one in four Americans and is linked to over 400 prescription and non-prescription drugs. Patients may experience symptoms like constant thirst, difficulty eating or speaking, and increased tooth decay risk.

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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.

Antidepressant directly stimulates brain growth factor receptors

Researchers found that amitriptyline can directly stimulate molecules that help neurons grow and resist toxins, suggesting a separate mechanism for its antidepressant effects. The study suggests that this property may be the key to understanding how some antidepressants work.

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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.

Marijuana rivals mainstream drugs for HIV/AIDS symptoms

A new study published in Clinical Nursing Research found that marijuana use is common among HIV/AIDS patients in the US to alleviate symptoms such as anxiety, depression, and nausea. The study suggests that therapeutic marijuana use merits further consideration among policy makers, despite potential risks associated with its use.

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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.

Are we cherry picking participants for studies of antidepressants?

A recent study found that only a small percentage of patients with depression qualify for clinical studies, suggesting the results may not be generalizable to most patients. The study showed better outcomes for those who met inclusion criteria, highlighting the need for more inclusive trial designs.

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Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Study suggests new target for treatment of depression

A study by researchers at the University of Iowa found that disrupting ASIC1a, a brain protein involved in fear behavior and anxiety, produces an antidepressant-like effect in mice. The results suggest that ASIC1a inhibition could represent a new approach to antidepressant therapy.

Depression after heart disease ups risk of heart failure

Patients with heart disease who develop depression are at a greater risk for heart failure, with a two-fold increased incidence. Antidepressant therapy did not appear to lower this risk, suggesting that depression may be an emerging risk factor for cardiovascular outcomes.

Feeling down and out could break your heart, literally

Research suggests that depression can increase the risk of sudden cardiac death and fatal coronary heart disease in women. Women with more severe depressive symptoms or those who reported taking antidepressants were at higher risk for these events.

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.

Feeling down and out could break your heart, literally

Research found that relatively healthy women with severe depression are at increased risk of cardiac events, including SCD and fatal CHD. Antidepressant use was strongly associated with this risk, particularly Sudden Cardiac Death.

Coming undone: How stress unravels the brain's structure

Research at Yale University finds stress-related losses of synapses in the hippocampal region precede helpless behavior in depression and PTSD. Rapid-acting antidepressants may restore lost synapses for immediate relief from depressive symptoms.

Omega-3s ease depressive symptoms related to menopause

A study by Université Laval researchers found that omega-3 supplements significantly improved menopause-related mental health problems, including depression and hot flashes, in women aged 40 to 55. However, the effectiveness of omega-3s for more severe depressive symptoms was limited.

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.