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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

Rwandan genocide survivors provide new insights into resilience and PTSD

A study of Rwandan genocide survivors found that genetic variations in the catechol-O-methyltransferase (COMT) gene affect PTSD risk. Survivors with certain genetic markers showed increased resilience to stress-related problems, while others were more vulnerable. The findings provide new insights into the complex relationship between t...

Many veterans not getting enough treatment for PTSD

A study found that over 50,000 Iraq and Afghanistan war veterans received a new PTSD diagnosis, yet fewer than 30% completed the recommended 10-12 weekly sessions. Factors such as age, sex, and rural residence also affected treatment outcomes.

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.

Losing sleep, losing brain?

A study published in Biological Psychiatry found that chronic insomnia is associated with smaller volumes in brain regions involved in memory formation and pleasantness evaluation. Insomnia patients have lower grey matter density in these regions, which may impact their ability to recognize optimal comfort for falling asleep.

Post-traumatic stress disorder diagnosed with magnetism

Researchers used MEG to distinguish between neural activity of PTSD patients and healthy controls with over 90% accuracy. A positive association was found between prediction certainty and symptom severity, suggesting potential use in gauging disorder levels.

No evidence to support psychological debriefing in schools

Recent systematic reviews indicate that psychological debriefing of adults does not prevent post-traumatic stress disorder and may even increase the risk. Two programs offering Psychological First Aid and cognitive behavioral support show promise of effectiveness in preventing PTSD and other psychiatric disorders.

PTSD less common than depression and alcohol misuse amongst UK troops

A study published in BMC Psychiatry found that depression and alcohol misuse are more common mental health disorders among UK Service personnel returning from Iraq and Afghanistan. The study also reveals that reservists are at a greater risk of psychiatric injury than regular personnel.

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.

Keeping the suicidal soldier alive

Researchers have developed a predictive tool to detect at-risk soldiers with post-traumatic stress disorder (PTSD) using functional magnetic resonance imaging (fMRI). The study shows that fMRI can be used to forecast which soldiers might be vulnerable to stress psychopathology in the future.

Acute impact on brain function in earthquake survivors

Researchers found significant alterations in brain function similar to posttraumatic stress disorders shortly after the Wenchuan earthquake. Hyperactivity in certain areas and decreased functional connectivity were observed, suggesting a need for early treatment and potential long-term psychological impact.

Post-traumatic stress disorder primary suicide risk factor for veterans

Researchers found that post-traumatic stress disorder (PTSD) is associated with an increased risk of thoughts of suicide in Iraq and Afghanistan war veterans. The study, published in the Journal of Traumatic Stress, indicates that PTSD is a primary risk factor for suicide-related thoughts, even after accounting for other mental disorders.

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.

Hormone levels contribute to stress resilience

A recent study published in Biological Psychiatry found that hormone levels play a crucial role in stress resilience among military combat divers. Soldiers with higher dehydroepiandrosterone (DHEA) levels performed better during stressful underwater navigation exercises.

Afghani children suffering from post-traumatic stress

A study published in the Journal of Traumatic Stress found that at least half of Afghan school children have developed PTSD due to traumatic experiences. The research highlights the need for interventions addressing not only war experiences but also family disturbances and community factors.

Witnessing violence affects kids' health

Exposure to community violence in school-aged children disrupts their normal cortisol production pattern, leading to physiological symptoms and potential long-term negative health effects. The study found a link between stress symptoms and cortisol levels, highlighting the need for healthcare providers to monitor these children's health.

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.

Controlling our brain's perception of emotional events

A study by Nicole Lauzon and Dr. Steven Laviolette found specific receptors in the brain can control emotional significance and memory formation for traumatic events, offering new therapeutic treatments for psychiatric disorders like Schizophrenia and PTSD.

New strategy to weaken traumatic memories

Researchers develop a novel approach to treating PTSD by selectively disrupting traumatic memories with a cortisol-blocking drug. The treatment's effectiveness is linked to the intensity of the initial trauma and can be administered shortly before recalling the memory.

Stress may cause the brain to become disconnected

New study finds stress-related changes in brain structure may lead to depression-like behavior and PTSD. Researchers propose that restoring hippocampal synapses could provide immediate relief from depressive symptoms.

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Diagnosis of 'war-zone disorder' to help stroke victims

Researchers discovered that post-traumatic stress disorder impacts stroke patients' recovery and ability to resume normal life, even with minor brain damage. Early testing using simple questionnaires could lead to significant improvements in subarachnoid hemorrhage patient outcomes.

Metabolic syndrome a risk for veterans with PTSD

Researchers found that veterans with PTSD were more likely to have metabolic syndrome, which is composed of obesity, high blood pressure, and insulin resistance. The study suggests that stress and post-stress responses are related to long-term health outcomes and may be linked to an increased risk of disease.

Metabolic syndrome risk for veterans with PTSD

Research published in BMC Medicine found a significant association between metabolic syndrome and PTSD after controlling for other factors. Veterans with higher severity of PTSD were more likely to meet the diagnostic criteria for metabolic syndrome.

Apple iPhone 17 Pro

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

Easing the stress of trauma

A Tel Aviv University researcher has found that an injection of cortisol shortly after a traumatic event may prevent the onset of PTSD. Cortisol levels are believed to be linked to the individual's ability to forget memories of the traumatic event.

Whether combat or peacekeeping, PTSD impacts veterans' well-being

Research by Dr. J. Donald Richardson found that deployed peacekeeping veterans with PTSD experience significant impairments in health-related quality of life. The study highlights the importance of assessing quality of life when evaluating veterans for rehabilitation needs.

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PTSD endures over time in family members of ICU patients

Family members of ICU patients experience high rates of post-traumatic stress and complicated grief that persist over time. Symptoms of anxiety and depression in these individuals tend to diminish with time, but screening is crucial to identify those at risk.

Apple iPad Pro 11-inch (M4)

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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.

Highest ever levels of post-traumatic stress found in Uganda

A study published in BMC Psychiatry reveals that 54% of Ugandans meet symptom criteria for PTSD, while 67% show signs of depression. The study attributed these findings to the country's history of trauma exposure, including rape, hunger, and lack of medical care.

Exposure therapy may help prevent post-traumatic stress disorder

A randomized controlled trial found that exposure therapy was more effective than cognitive restructuring in preventing PTSD in individuals with acute stress disorder. Exposure therapy reduced distress ratings and promoted full remission, suggesting its potential as an early intervention for high-risk patients.

Depression and PTSD symptoms in caregivers of lung transplant patients

A study of caregivers of deceased lung transplant patients found that they reported poorly controlled symptoms and a worse quality of dying and death process, leading to significant depressive and PTSD symptoms. The researchers highlight the urgent need for improved support systems to alleviate caregiver stress.

Haunted by hallucinations: Children in the PICU traumatized by delusions

A new study finds nearly one-third of children in the Pediatric Intensive Care Unit (PICU) experience hallucinations or delusions, which are associated with higher risk of post-traumatic stress symptoms. The study suggests that sedation and physical environment may play a role in reducing these symptoms.

Meta Quest 3 512GB

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

Moral philosopher questions memory manipulation

A moral philosopher is investigating the ethics of medicated memory manipulation, particularly in the context of post-traumatic stress disorder (PTSD). The use of beta-blockers to dampen emotional responses to traumatic events may undermine an individual's understanding of their moral responsibility.

Study: Treating post-traumatic stress first helps children overcome grief

A new University of Georgia study finds that treating post-traumatic stress disorder (PTSD) symptoms before grief therapy is essential for helping children cope with loss. Camp-based interventions have been shown to be beneficial, providing a supportive environment where children can process their emotions and develop coping skills.

Does stress damage the brain?

A study found reduced gray matter density in the pregenual anterior cingulate cortex of combat-exposed veterans with PTSD, but not their identical twins. The researchers suggest that stress exposure may cause this damage, leading to emotional consequences.

Researchers find Sept. 11 stress increases risk of heart problems

Researchers found a 53% increase in cardiovascular ailments after Sept 11 stress, with high anxiety levels three times more likely to report heart problems. The study, published in Archives of General Psychiatry, suggests that even indirect exposure to extreme stress can lead to long-term health consequences.

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.

Predicting post-traumatic stress disorders in deployed veterans

A Canadian study found that one-third of veterans who were deployed more than once experienced probable clinical depression, while 30% of those deployed only once were affected. The research also revealed that younger, single soldiers and those with multiple deployments were more likely to have PTSD and severe symptoms.

Study links asthma and post-traumatic stress disorder

A study of 3,065 male twin pairs found that those suffering from PTSD symptoms were 2.3 times more likely to have asthma compared to those with fewer symptoms. The association between asthma and PTSD was not primarily explained by genetic factors.

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.

Blood pressure drug curbs brain damage from PTSD

A study found that prazosin, an alpha-1 receptor antagonist, can block the increase of steroid hormones in the brain, which are associated with brain damage and cognitive impairment. This may provide a neuroprotective effect against post-traumatic stress disorder, Alzheimer's disease, depression, and schizophrenia.

Mice offer clues to the roots of human resilience

A new mouse study found that mice who are more susceptible to social defeat show increased levels of a growth factor known as BDNF in their brains' reward circuits, which promotes plasticity and learning. Resilient mice, on the other hand, did not exhibit this chemical rise, suggesting a potential link between BDNF and human resilience.

How emotionally charged events leave their mark on memory

Researchers have discovered a mechanism that strengthens memory connections in response to emotional stress, which may underlie why traumatic events can be more vividly remembered than everyday ones. The study found that the stress hormone norepinephrine enhances learning and memory by increasing GluR1 receptors.

Apple AirPods Pro (2nd Generation, USB-C)

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

A brain chemical that battles despair

Studies reveal a gene-regulating protein that triggers coping mechanisms in mice exposed to inescapable stress, leading to reduced behavioral despair. The discovery provides an animal model for exploring how antidepressants work on the brain circuitry involved in stress response.

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.

JRRD releases single-topic issue on pain and pain management

This article discusses various aspects of pain management, including the impact of depression and posttraumatic stress disorder (PTSD) on patient satisfaction. The study found that patients with both conditions were more likely to have a chronic medical condition and greater physical and psychosocial stressors.