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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

Women who exit welfare just as likely to marry as women never on welfare

Research shows women exiting welfare have similar marriage rates to those without welfare. The temporary disincentive to marry while receiving benefits may be reduced by allowing spouses' earnings not affect eligibility. Researchers observed over 3,000 women and debunked long-standing debates on the impact of poverty on family values.

Study of alternate bearing presents recommendations for citrus growers

Researchers find that removing fruit from 'Pixie' mandarin trees reduces floral intensity of return bloom by inhibiting budbreak. Growers can investigate degrees of fruit thinning or pruning to mitigate alternate bearing, which is exacerbated by holding fruit on the tree to extend commercial harvest period.

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.

Angry faces: Research suggests link between facial structure and aggression

A recent study found that a person's facial width-to-height ratio can be used to predict their tendency towards aggression. Volunteers rated the aggressiveness of male faces and found high correlation between the rating and the face's WHR, suggesting that subtle differences in face shape may affect personality judgments.

Travel of a mis-swallowed long spoon to the jejunum

A 33-year-old woman accidentally swallowed a 15 cm long spoon while attempting to remove a fish bone from her pharynx. The spoon was found in the lower mid-abdomen on an urgent plain abdominal radiograph and successfully removed during exploratory laparotomy, revealing it had passed into the jejunum after 200 cm of the ligament of Treitz.

Families suffer from problem gambling

A study published in the Journal of Marital and Family Therapy reveals that problem gambling has a profound impact on families, affecting their physical, emotional, and financial well-being. The authors emphasize the need for family-based therapy solutions to address this growing issue.

Apple iPhone 17 Pro

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

Long-term treatment with proton pump inhibitor can increase weight

A study published in World Journal of Gastroenterology found that long-term proton pump inhibitor (PPI) treatment can lead to weight gain in patients with gastroesophageal reflux disease (GERD). The research highlights the importance of lifestyle modifications, such as dietary changes and weight management, to mitigate this effect. By ...

Sensing disasters from space

The HRS technology combines space sensors with ground and air measurements to provide advance warnings of natural disasters such as forest fires. It can also identify water contamination, pollution spills and monsoon strikes, offering valuable insights for property developers and authorities.

Widespread use of teleradiology services could be declining

The use of external teleradiology services (EOTSs) has slowed in recent years, contradicting predictions of market expansion. Many radiology practices that initially adopted EOTSs have since stopped using them, suggesting a possible decline in their widespread adoption.

Celestron NexStar 8SE Computerized Telescope

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

How to identify early graft dysfunction preoperatively?

Small-for-size graft dysfunction can occur in liver transplant patients with a graft-to-recipient body weight ratio above 0.8%. The study found that patients with a high GV/SLV ratio were more likely to develop early graft dysfunction, highlighting the importance of prompt recognition and timely treatment.

Bosses who feel inadequate are more likely to bully

New research from the University of California, Berkeley and the University of Southern California found a direct link between supervisors' self-perceived incompetence and aggression. The study challenges previous assumptions that abusive bosses are solely driven by ambition.

Meta Quest 3 512GB

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

ASAPS partners with SAGE in 2010 to publish the Aesthetic Surgery Journal

The American Society for Aesthetic Plastic Surgery (ASAPS) has partnered with SAGE to publish the Aesthetic Surgery Journal, a peer-reviewed international journal focusing on scientific developments and clinical techniques in aesthetic surgery. The journal will cover topics relevant to safe and effective practice of aesthetic surgery.

ASA, CSSA and SSSA to present fellows in Pittsburgh

The American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America will present the 2009 fellows at a special ceremony in Pittsburgh. The fellows were chosen for their professional achievements and meritorious service, with only 0.3% of members selected.

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.

US Chamber of Commerce releases questionable survey results

The US Chamber of Commerce's annual surveys have been criticized for their inaccuracies and biases, raising concerns about the reliability of their rankings. Theodore Eisenberg's analysis suggests that the surveys may be more of an advocacy tool for tort reform rather than a genuine assessment of state judiciaries.

Women's soccer -- get fit while having fun

A two-year study of 100 untrained adult women reveals that playing soccer improves maximal oxygen uptake, muscle mass, and physical performance compared to running. The study also shows that soccer's fixed time and place make it easier for women to stick to their training than running.

You must remember this: Scientists develop nasal spray that improves memory

Researchers found that administering interleukin-6 through a nasal spray improves memory consolidation during late night REM sleep cycles, particularly for emotional and procedural memories. The study involved 17 healthy young men who received either the nasal spray or a placebo fluid after reading an emotional or neutral short story.

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.

'Green' roofs may help put lid on global warming

Green roofs can capture more than 55,000 tons of carbon per urban area of one million people, reducing greenhouse gas emissions and fighting climate change. The study found that green roofs not only absorb CO2 but also reduce heating costs and retain stormwater.

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.

How scientists think: Fostering creativity in problem solving

Researchers found that scientists combine model-based cognitive problem-solving with creativity to develop a better understanding of the system under investigation. This approach allows scientists to build real-world models and make predictions, leading to novel problem solutions.

T. rex body plan debuted in Raptorex, but 100th the size

Raptorex displays all the hallmarks of Tyrannosaurus rex, including a large head and tiny arms, at about 100th the size that would eventually become T. rex. This suggests that tyrannosaur design evolved at a small body size, with larger animals developing later.

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.

A tiny tyrannosaur

A new species of tyrannosauroid dinosaur, Raptorex kriegsteini, has been discovered in China that predates the Tyrannosaurus rex by tens of millions of years. The fossil, which is only three meters long, exhibits the same physical traits as T. rex, including an oversized skull and powerful jaws.

Evaluation of standard liver volume formula for Chinese adults

A study published in the World Journal of Gastroenterology evaluated 76 cases of living donor liver transplantation and found that the Chengdu formula is reliable. The other formulas, such as Fan and Heinemann, underestimated liver volume, while Urata and Lee overestimated it.

How to reach proficiency in laparoscopic splenectomy?

The study investigates proficiency level in laparoscopic splenectomy using the learning curve method, finding a horizontal lazy S-shape with two distinct slopes. Surgeons can be accepted as proficient after performing at least 25 cases, contrary to the widely accepted 'L' shape.

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.

Under pressure: The impact of stress on decision making

A new study finds that cognitive stress can significantly impact decision making, leading participants to overlook information predicting negative outcomes. Under pressure, individuals may rely on past rewards rather than rational considerations, resulting in irrational biases.

Iraq troops' PTSD rate as high as 35 percent, says Management Insights study

A new study by Management Insights suggests that Iraq veterans may be experiencing a PTSD rate of up to 35%, doubling the expected rate due to delayed onset and subsequent deployments. The Institute for Operations Research and the Management Sciences calls for increased mental health resources to care for returning troops.

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 link between weight and importance

A study published in Psychological Science found that carrying a heavy clipboard increased volunteers' judgment of the value of foreign currencies and the importance of social justice issues. The researchers propose that this effect may be linked to embodied cognition, where bodily experiences shape mental processes.

Handwriting-based tool offers alternate lie detection method

Researchers at the University of Haifa have developed a handwriting-based tool that measures physical properties of handwriting to detect deception. The tool shows promise in replacing verbal-based methods such as polygraphs, providing greater accuracy and ease for law enforcement.

Teetotallers more likely to be depressed

A new study finds that abstainers are more likely to report symptoms of depression than moderate drinkers, with those labeling themselves as 'abstainers' at the highest risk. Other factors like age and social isolation may contribute to this increased risk.

Hepatic injury in cholelithiasis and cholecystitis

Researchers found that acute transient hepatocellular injury occurs in patients with cholelithiasis and cholecystitis without evidence of CBD stones, resolving within weeks after surgery. Markers of liver damage are more severe in those with CBD stones or histologically less severe inflammation.

Surgical treatment a rare complication of duodenal diverticulum

A rare case of duodenal obstruction after successful embolization for duodenal diverticular hemorrhage was reported. The study highlights the importance of thorough observation of resolving hematomas and conservative treatment before surgery to relieve duodenal fibrotic encasement.

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.

UTSA plant biologists publish where their peers are -- on the Web

Researchers at the University of Texas at San Antonio have published an 11-minute video in JoVE to demonstrate their novel hormone extraction technique. The video provides a clear format for communicating complex scientific experiments and has received nearly 3,000 views since its publication.

Study shows bilinguals are unable to 'turn off' a language completely

A recent study published in Psychological Science found that bilinguals cannot completely 'turn off' a language, as knowledge of a second language affects native-language reading. Bilingual students read sentences with control words and cognates, showing shorter fixation times on cognates than controls.

Fluke 87V Industrial Digital Multimeter

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

Flat bacteria in nanoslits

Researchers at Delft University of Technology discovered that bacteria can retain motility in surprisingly narrow channels, growing and dividing instead of swimming. This new phenotype may be more common than thought, with implications for membrane filters and medical applications.

Gallbladder emptying in primary sclerosing cholangitis patients

Patients with primary sclerosing cholangitis (PSC) have significantly larger fasting and postprandial gallbladder volumes compared to healthy controls. However, there is no correlation between gallbladder size or emptying and the occurrence of abdominal pain in PSC patients.

Predictors of disease behavior change in Crohn's disease

Researchers found that perianal disease, current smoking, prior steroid use and early azathioprine or biological therapy are predictors of disease behavior change in CD patients. These findings may aid clinicians in choosing the treatment strategy for their patients.

Bioethanol's impact on water supply 3 times higher than once thought

A recent study published in Environmental Science & Technology found that bioethanol production requires up to 861 billion gallons of water, with some regions consuming as much as 2,100 gallons per gallon of ethanol produced. This highlights the need for regional-specific considerations when implementing biofuel mandates.

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.

Joint research into an enzyme that causes genetic diseases

Researchers have gained in-depth knowledge of pyruvate carboxylase's structure, a metabolic enzyme linked to genetic diseases like lactic acidaemia and hypoglycaemia. The study also sheds light on its potential role in obesity and diabetes treatments.

Research shows temptation more powerful than individuals realize

Research shows that individuals tend to overestimate their ability to control impulses, leading to a greater likelihood of indulging in impulsive or addictive behavior. The study found that people in a 'cold state' underestimate the influence of impulsive states on their behavior.

The paradox of loyalty

Researchers found that loyalists who were most devoted to their school were also the most cooperative and helpful when confronted with injustice. However, this loyalty was short-term and may fade if the group continues to exhibit unfairness.

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.

Life lessons: Where psychology stands on living well

Research by Nansook Park and Christopher Peterson highlights the importance of experiencing positive emotions, having close interpersonal relationships, and finding meaning in life. The authors suggest that psychology has made progress in understanding human problems but still lacks a formula for achieving a good life.

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.

Large abdominal wall lipoma causes bowel obstruction

A large abdominal wall lipoma caused bowel obstruction in a patient with Proteus syndrome. Excision of the lipoma improved bowel passage and reduced symptoms. The treatment was successful, allowing the patient to continue medical treatment on an outpatient basis.

Fecal incontinence and quality of life

A study published in the World Journal of Gastroenterology found that fecal incontinence significantly impacts patients' quality of life, affecting lifestyle, coping behavior, depression, and embarrassment. The results show that over 22% of patients experience severe QOL effects due to FI.