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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

Apple iPhone 17 Pro

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

Psychological and physical torture have similar mental effects

A study of 279 torture survivors found that psychological manipulation, deprivation, and humiliation caused as much distress as physical torture. The researchers concluded that the distinction between torture and other forms of maltreatment is not only useless but also dangerous.

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.

Severe PTSD damages children's brains, Stanford/Packard study shows

A Stanford/Packard study found that severe PTSD damages children's brains by reducing the size of the hippocampus, a crucial structure for memory processing and emotion. Children with PTSD were more likely to experience a decrease in hippocampal volume, which can lead to prolonged symptoms and impaired brain development.

Extra cortisol protects women's mood under stress

Researchers found that cortisol can lessen emotional impact of stress in women, with a high dose providing protective effects. The study suggests potential for cortisol as a clinical tool to treat and prevent anxiety disorders.

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.

PTSD may increase heart disease risk in older men

A prospective study found that higher levels of PTSD symptoms are associated with an increased risk of non-fatal and fatal coronary heart disease in older male veterans. The study analyzed data from 1,946 men enrolled in the Veterans Affairs Normative Aging Study.

Experience sculpts brain circuitry to build resiliency to stress

Researchers found that experiencing control over a stressor immunizes a rat from developing depression-like syndrome when it later encounters uncontrollable stressors. The prefrontal cortex plays a crucial role in processing information about controllability and regulating responses to subsequent stressors.

Fatigue in women is reduced in stress-related cortisol study

A study of healthy women has found that stress-related cortisol administration can reduce fatigue and increase vigor. The research may help fine-tune treatments for illnesses linked to low cortisol levels, such as chronic fatigue syndrome and post-traumatic stress disorder.

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.

Stress, childhood trauma linked to chronic fatigue syndrome in adults

Research finds childhood traumatic events and emotional instability are associated with CFS, which affects daily activities and interferes with rest. Higher overall trauma scores increase the risk of CFS by 3-8 times, with emotional neglect and sexual abuse during childhood linked to worse symptoms.

Pre-clinical study suggests how steroid can reverse post-traumatic stress

Researchers at UT Southwestern Medical Center discovered that a natural stress hormone corticosterone can decrease the fearful response associated with reliving traumatic memories in mice. The study showed that this hormone enhances new memories competing with fearful memories, thereby decreasing their negative emotional significance.

SUNY Downstate scientists discover memory molecule

Scientists at SUNY Downstate Medical Center discovered a molecular mechanism maintaining memories in the brain by inhibiting a specific enzyme, protein kinase M zeta. This finding may have applications in treating chronic pain and memory loss conditions such as post-traumatic stress disorder.

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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.

Researchers conduct training in disaster mental health

Researchers are developing a new field in disaster mental health training to address the emotional needs of victims, first responders, and others affected by disasters. With funding from the DOH Grant, they have already trained 168 community-based mental health professionals and plan to expand their reach.

Stress, alcoholics, and post-traumatic stress disorder

A study found that individuals with alcohol dependence without PTSD exhibit a disconnect between emotional distress and biological stress response to stress tests. They are more likely to relapse during the follow-up period due to this disruption.

Meta Quest 3 512GB

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

Combat duty in Iraq linked with high use of mental health services

The study found that US military veterans who served in Iraq had a higher prevalence rate of mental health problems and combat experiences compared to those who served in Afghanistan or other locations. Iraq veterans used inpatient and outpatient mental health services at higher rates, with an annualized rate of utilization of 35%.

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GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Study finds torture and human rights abuses among Tibetan refugees

Researchers found extremely high reported human rights violations among Tibetan refugees, leading to increased incidence of post-traumatic stress disorder, anxiety disorders, and depression. The study reveals that torture and human rights abuses are unacceptably high among Tibetans who have escaped to Nepal or India.

Heart disease patients face greater risk of PTSD

According to a recent review, approximately 15% of heart attack patients develop post-traumatic stress disorder (PTSD), which can lead to impairments in social functioning, vitality, and physical health. The study also identifies risk factors for PTSD in cardiovascular disease patients.

Opiate drugs increase vulnerability to stress

A study by Gavan McNally and colleagues found that opiate users are more susceptible to stress-induced anxiety. The researchers tested rats with morphine or saline solution, then subjected them to restraint stress. The results showed that opiate-treated rats experienced greater anxiety responses, including reduced social interaction, a...

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.

Mental health of war survivors

A study published in JAMA Network in 2005 found that war survivors experienced high rates of mental health disorders, including post-traumatic stress disorder (PTSD) and depression. The study highlighted the need for comprehensive care and support for military personnel returning from combat.

PTSD, depression epidemic among Cambodian immigrants

A study of Cambodian immigrants in the US found a significant prevalence of PTSD and depression, with rates highest among older, poorer, and unemployed individuals. The research suggests that these disorders may be linked to a single continuum of posttraumatic stress.

Resettling the 'Lost Boys of Sudan' in the United States

A recent US study by Boston University researchers found that family and community engagement are crucial in mediating the traumatic reaction of unaccompanied refugee minors, known as the 'Lost Boys of Sudan'. The study suggests that comprehensive approaches to resettlement efforts can help these young men thrive on all fronts.

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.

Resettling the 'Lost Boys of Sudan' in the United States

A US study assessed the functional and behavioral health of unaccompanied Sudanese refugee minors one year after resettlement in foster care. The youths reported high levels of trauma and stress, with increased risk of PTSD associated with separation from family, group home living, and feelings of loneliness.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Babies show ripple effects of mothers stress from 9/11 trauma

Infants of mothers with posttraumatic stress syndrome disorder (PTSD) symptoms after 9/11 have significantly lower cortisol levels compared to those born to mothers without the condition. This effect is observed both in utero and after birth, suggesting a potential biological risk factor for PTSD.

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.

Post-traumatic stress disorder common among refugees in western countries

Research suggests that post-traumatic stress disorder (PTSD) is a significant concern among refugee populations in western countries. Studies indicate that approximately 1 in 10 adults experience PTSD, while others may struggle with major depression and generalized anxiety disorders. The findings highlight the need for increased attent...

Rat brain's executive hub quells alarm center if stress is controllable

A study by University of Colorado researchers found that rats with controlled stress exhibit reduced brainstem activation and behaviors similar to depression and anxiety. The prefrontal cortex sends inhibitory signals to the brainstem when stress is controllable, quelling alarm center activity.

Levels of certain hormones may be increased by stress

Researchers found that acute stress increases levels of DHEA-S in healthy humans and the DHEA-S-cortisol ratio is associated with reduced dissociation symptoms. The study suggests that augmentation of DHEA-S levels before stress exposure may provide a protective effect against stress-induced symptoms.

Posttraumatic stress disorder linked with poor health

Women with PTSD experience more medical conditions and poorer physical health compared to those with depression or no history of mental health issues. The study found that PTSD affects 17% of women under 45, while depression rates are higher in older age groups.

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.

Stress linked to increased risk of depressive and anxiety disorders

A study found that lifetime exposure to adversity is associated with an increased risk of developing depressive or anxiety disorders in young adults. The researchers analyzed data from 1,803 interviews and found that the level of adversity was a significant predictor of these disorders.

Mental health symptoms common at Pentagon after 9/11

A study of Pentagon personnel found that nearly 21 percent experienced mental health symptoms, including generalized anxiety and depression, following the 9/11 attacks. The researchers also discovered that a significant portion of those at high risk for mental health problems sought counseling after the attack.

Trauma and post-traumatic stress highly prevalent among delinquents

A study by Northwestern University found that over 90% of delinquent youth had experienced at least one traumatic event, with boys reporting higher rates than girls. The researchers recommend improving mental health services for high-risk youth and detecting post-traumatic stress disorder in juvenile detainees.

Celestron NexStar 8SE Computerized Telescope

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

Scars of 9/11 linger with NYC firefighters

A recent study by Cornell University found that NYC firefighters experience high levels of PTSD, depression, and anxiety after the 9/11 attacks. The study also highlights the importance of open communication, teamwork, and employee involvement in decision-making to improve firefighter well-being.

The hidden health trauma of child soldiers

A study of 300 former child soldiers found nearly all experienced traumatic events, including physical and sexual abuse. The study highlights the need for stronger intervention by the UN to prevent children from being used as soldiers in conflicts.

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.

Losing consciousness can stop you getting posttraumatic stress disorder

Researchers found that patients who lost consciousness for at least 12 hours were less likely to develop posttraumatic stress disorder compared to those who remained conscious. The study, which examined 46 inpatients with traumatic brain injuries, suggests that losing consciousness may be a protective factor against developing PTSD.

Studies highlight impact of Sept. 11, Iraq war on adolescents

Researchers found that 9-11 attacks had a significant impact on black adolescents, with 28% feeling pessimistic about their future and 22% losing faith in government protection. The Iraq War study showed military youth experiencing higher blood pressures, heart rates, and anxiety symptoms.

Postnatal depression: A personal view

Postnatal depression is a severe mental illness with long-term effects, responding to treatment and requiring multidisciplinary care. The Lancet article shares a personal account and highlights the importance of recognition, support groups, and medical community response.

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.

Estrogen makes the brain more vulnerable to stress

Researchers found that female rats were more sensitive to stress-induced memory errors when estrogen levels were high. Eliminating estrogen from their system reduced this sensitivity, suggesting a key role for estrogen in the vulnerability of women to stress-related mental illnesses.

Avoid bad memories: Targeting genes and drugs

Researchers discovered that stress can alter gene expression, leading to enhanced fear memory and long-term potentiation. By using a new gene-based 'antisense' drug, they successfully prevented these changes, attenuating the elevated freezing response and paving the way for novel treatments.