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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

New studies confirm chest compressions alone

Two large-scale studies found no statistically significant difference in survival rates between Chest-Compression-Only CPR and traditional CPR with mouth-to-mouth breathing. This contradicts previous guidelines that recommended interrupting chest compressions for breaths.

PDSS reliable in measuring impact of sleep disorders on teens' academic performance

A study published in SLEEP journal found a strong correlation between sleep disorders and poor academic performance in teenagers. The Pediatric Daytime Sleepiness Scale (PDSS) was used to measure the impact of sleep-related breathing disorders on teens' grades, with results showing that snoring and apneas were independent predictors of...

Apple iPhone 17 Pro

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

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.

Cyprian honeybees kill their enemy by smothering them

Researchers found that Cyprian honeybees mob and kill Oriental hornets through asphyxiation, targeting the hornets' abdomen to block breathing. This new defense strategy allows the bees to adapt to extreme conditions and survive.

Rhythmic breathing adapts to external beat through 'brain calculus'

Researchers found that nonassociative learning enables rats and mice to adapt to artificial rhythms in mechanical ventilation, reducing the need for sedation. Brain calculus involves mathematical calculations to process and filter information, allowing vital functions to learn and adapt.

Military to study better pain relief in battle zones

University of Michigan scientists are creating nanoparticles that can deliver morphine to wounded soldiers faster and more safely. The goal is to develop tiny drug-bearing particles that a fellow soldier could inject with a pen-like device, even in combat.

Fluke 87V Industrial Digital Multimeter

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

Nasal cannula may be viable treatment for sufferers of sleep apnea

Researchers at Johns Hopkins University found that nasal insufflation using a nasal cannula significantly reduced symptoms in patients with obstructive sleep apnea and hypopnea. The treatment, known as TNI, delivered warm, humidified air at a high flow rate, showing marked improvements in patients with both mild and severe disorders.

AIAA to present awards at 43rd Joint Propulsion Conference

The AIAA will present several awards at the upcoming conference, including the Wyld Propulsion Award to Frederick Boorady for his contributions to liquid propulsion technologies. The Ground Testing Award will be given to Frank Steinle for his work in experimental aerodynamics and ground testing.

Papworth breathing technique cuts asthma symptoms by a third

A randomized controlled trial shows that the Papworth breathing technique can reduce asthma symptoms by a third, with improvements also seen in mental health outcomes. The technique, which involves diaphragmatic breathing and relaxation exercises, has no significant impact on lung function.

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.

UCLA imaging study reveals how pure oxygen harms the brain

A new UCLA study used fMRI to capture detailed pictures of the human brain's response to inhaling pure oxygen. The researchers found that adding carbon dioxide to the gas mix calms the hypothalamus and slows the release of dangerous chemicals, preventing lasting damage.

Sleep apnea increases risk of heart attack or death by 30 percent

A new study has found that sleep apnea significantly increases the risk of heart attack or death over a period of four to five years. Researchers followed 1,123 patients with sleep apnea for five years and found that those with more severe symptoms were at higher risk of developing heart disease.

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.

Sleep apnea may increase risk of diabetes

Research finds patients with sleep apnea have a higher risk of developing diabetes, independent of other factors. The severity of sleep apnea is also associated with the risk, highlighting the need for further investigation into treatment options.

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.

The gigantic respiration of crystalline solids

Gérard Férey and his team at Institut Lavoisier have discovered a new family of trivalent metal dicarboxylates with unprecedented respiration properties, exceeding 300% volume variation upon solvent immersion. These crystalline solids possess reversible respiration mechanism without apparent bond rupture.

Shedding new light on proteorhodopsin

Researchers found that proteorhodopsin helps bacteria supplement energy when respiration is impaired. When exposed to light, these bacteria can use solar power to carry out vital life processes.

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.

High blood pressure in kids linked with sleep breathing problems

A recent study published by the American Heart Association found that children with high blood pressure are at risk for sleep breathing disorders. Researchers discovered that 60% of hypertensive children had sleep disordered breathing, which can lead to daytime fatigue, poor school performance, and increased blood pressure.

Breathing problems during sleep increase risk of depression

Individuals with sleep-related breathing disorders are significantly more likely to develop depression, especially those with moderate or worse disorders. The study found a dose-response association between sleep-related breathing disorder and depression, suggesting a causal link between the conditions.

Particle size matters to bacteria ability to immobilize heavy metals

Researchers discover that bacteria prefer larger nanoparticles to smaller ones for efficient metal reduction. The study reveals a 10-fold difference in bioreduction rates among particles of similar shape but different sizes, with larger particles being reduced faster than smaller ones.

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.

Mayo clinic discovers new type of sleep apnea

Researchers at Mayo Clinic have identified a new type of sleep apnea called complex sleep apnea, which is a combination of obstructive and central sleep apneas. Complex sleep apnea patients often appear to have obstructive sleep apnea but do not fully respond to CPAP machines.

Abolish the term 'asthma'

A recent editorial in The Lancet suggests that asthma may not be a single disease entity but rather a collection of symptoms with varying triggers and responses. This conclusion is based on the lack of understanding about what triggers inflammation in the airways, leading to the condition.

Severe sleep apnea raises risk of ischemic stroke in elderly

A recent study published by the American Heart Association found that severe sleep apnea significantly increases the risk of ischemic stroke in older adults. The study analyzed data from over 390 participants aged 70-100 and discovered that those with severe sleep apnea were 2.5 times more likely to experience a stroke.

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.

Vampire bats recognise their prey's breathing

In a study by Udo Groeger and Lutz Wiegrebe, vampire bats were taught to associate different human breathing patterns with cattle blood dispensers. The bats demonstrated the ability to recognize clips of humans breathing at rest and during physical strain, while human participants struggled to do so.

Infant snoring linked to parental snoring

A new study published in the American College of Chest Physicians journal found that infant snoring is strongly linked to parental snoring. Children born to atopic parents are nearly three times more likely to develop habitual snoring, highlighting the importance of early detection and treatment.

Snoring can run in the family

Researchers found that children with at least one parent who snores frequently are more likely to develop allergies and snore themselves. The study suggests early detection is crucial to prevent morbidity due to untreated obstructive sleep-disordered breathing in young children.

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.

Prenatal nicotine exposure reduces breathing response of newborns...

A study by University of Arizona researchers found that prenatal nicotine exposure reduces the ability of newborns to respond to low blood oxygen, leading to prolonged and potentially lethal apneas. The study used a pump implant to simulate nicotine exposure in pregnant rats, mimicking the situation observed in smoking pregnant women.

Kids behave and sleep better after tonsillectomy, study finds

A new study found that children with behavior and sleep problems were more likely to have improved symptoms after undergoing tonsillectomy. The research suggests a link between sleep-related breathing problems and daytime behavior issues, but notes that the procedure is not a cure-all for ADHD.

Typical pregnancy is now only 39 weeks

The typical pregnancy duration has decreased to 39 weeks, leading to a rise in late preterm births. Late preterm infants face increased risks of breathing problems, feeding difficulties, and reduced brain development compared to full-term babies.

Celestron NexStar 8SE Computerized Telescope

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

Scientists provide new evidence for cellular cause of SIDS

Researchers found that serotonin levels in pacemaker cells are crucial for gasping and auto-resuscitation in babies. Disturbed serotonin levels can lead to a decrease in gasping, making it difficult for the baby to wake up and initiate movement.

Surgery for child apnea leads to weight gain

A study published in Pediatrics found that children who underwent surgery for obstructive sleep-disordered breathing (OSDB) due to enlarged adenoids experienced a significant increase in excess weight, averaging 13% over 12.6 months. This weight gain may be linked to reduced motor activity and poor sleep quality after the surgery.

Gum-chewing may speed recovery after colon surgery

Patients who chewed sugarless gum three times a day experienced shorter hospital stays (4.3 days vs. 6.8 days) and earlier gas passage and first bowel movements compared to control groups. Chewing gum may stimulate the gastrointestinal tract, promoting hormones that activate bowel motility.

No pacemakers in the brain may explain cot death

A subset of brain cells with pacemaking abilities has been identified as essential for gasping in infants, resolving a 15-year-old controversy. The discovery highlights the importance of autoresuscitation and gasping in maintaining oxygen supplies and heart rate during critical low-oxygen conditions.

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.

Of mice, men, trees and the global carbon cycle

A new study reveals that plant metabolic rates are driven by nitrogen content, which has significant implications for understanding the global carbon cycle. By estimating nitrogen content, scientists can model plant metabolism and better assess the global plant metabolic rate.

Moderate to severe sleep-disordered breathing can lead to stroke

A long-term study found that individuals with moderate to severe sleep-disordered breathing have a significantly increased odds of suffering a stroke over the next four years. The study analyzed data from 1,475 participants and revealed that 21 people suffered their first-ever stroke at an average age of 53.

Research findings contradict longstanding bias against morphine

A new study challenges traditional beliefs about morphine's impact on breathing difficulties in dying patients. Contrary to the long-held notion that morphine hinders breathing, researchers found that controlled doses of morphine can actually prolong life by slowing down breathing and reducing panic. This shift in understanding is bein...

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.

Musical training might be good for the heart

Research on 24 young men and women found that faster music speeds up breathing and circulation, while slower music decreases heart rate. Musicians experienced a stronger effect due to their ability to synchronize breathing with musical phrases.

Mayo Clinic develops new coma measurement system

The Mayo Clinic has developed a new coma measurement system called the FOUR Score, which quantifies the level of consciousness and severity of brain injury. The score, tested in 120 intensive care unit patients, provides more precise measurements and higher agreement between evaluators than the Glasgow Coma Scale.

Nighttime dying linked to sleep apnea from brain cell loss

Researchers at UCLA discovered a link between nighttime death and sleep apnea caused by the loss of brain cells. Studies in rats suggest that the human brain also loses specialized neurons responsible for breathing during sleep, leading to severe breathing disruptions.

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.

Majority of ALS patients are not depressed

The majority of ALS patients were never depressed during the study period, with only eight percent experiencing depression. Despite approaching death, people's attitudes towards life did not become more negative.

Children who stop breathing during sleep show brain damage

A new study reveals severe tissue injury in the brains of children with CCHS, disrupting cardiovascular function and breathing control. Researchers hope to develop new strategies to help the brain compensate for the injury, including injecting nerve growth factors.

Snoring now, hyperactive later?

A new study of 229 children found that regular snoring in childhood is linked to an increased risk of developing hyperactive behavior. The study also found that other symptoms of obstructive sleep apnea, such as daytime sleepiness, can predict future behavior problems.

Experts hope policy breathes life into asthma treatment method

Researchers at UF found that a metered-dose albuterol inhaler with a holding chamber works as well as traditional nebulizer treatment, causing fewer side effects in children. A policy implemented at Shands at UF medical center increased use of the new method by 53% and gave hope for wider adoption.

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.