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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

HIV study prompts call for revision of breastfeeding guidelines

A study published in The Lancet found that exclusive breastfeeding can significantly reduce the risk of HIV transmission from mother to child under six months. Infants who received formula milk or solids were nearly twice as likely to be infected, highlighting the importance of breast milk protection.

Early Europeans unable to stomach milk

Scientists at UCL and Mainz University found that the gene controlling milk digestion was missing from Neolithic skeletons. However, through exposure to milk, lactose tolerance evolved extremely rapidly in European populations. Today, over ninety percent of northern Europeans can digest milk.

Manual dishwashing study digs up dirt on dish cleanliness

A new study at Ohio State University has found that manual dishwashing can be made more efficient and effective by using cooler-than-recommended water and different sanitizing techniques. The researchers discovered that certain foods, such as cheese and milk, can harbor bacteria when dried onto dishware, while lipstick has antimicrobia...

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.

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.

How mammals fuel milk production may have implications for cancer

Researchers found that Akt1 is specifically required for lactating mice to synthesize sufficient milk. The protein kinase plays a critical role in glucose metabolism, which may have implications for cancer therapy. Studies suggest that the metabolic demands of lactation bear similarities to those of tumor cells.

Fortified milk reduces morbidity in preschool children

Consumption of fortified milk significantly reduces diarrhea and acute lower respiratory illness among preschool children in developing countries. The study found that fortified milk reduced the number of days with severe illness by 15 percent and incidence of pneumonia by 26 percent.

Got inexpensive contrast agent? Milk plays new role in imaging

Researchers found milk to be an effective alternative to the costly oral contrast agent VoLumen in gastrointestinal imaging exams. Milk was shown to produce similar bowel distension and enhancement without causing more abdominal discomfort than VoLumen, making it a viable option for patients.

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.

Dairy is necessary, even for lactose-intolerant children

The American Academy of Pediatrics recommends that lactose-intolerant children consume three servings of dairy per day to meet their daily allowance of milk and dairy products. Choosing products with live active cultures, such as yogurt or hard cheeses, can help alleviate symptoms and provide adequate calcium for bone growth.

Celestron NexStar 8SE Computerized Telescope

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

Leukemia gene normally has mammary gland function

Researchers found that a normal gene involved in mammary gland function helps trigger a lethal type of leukemia when mutated. The discovery suggests that drugs targeting this mutation may have fewer serious side effects in leukemia patients.

Improving your diet may not help you beat stress

A recent study published in the Journal of Proteome Research found that improving a rat's diet did not normalize their metabolic profile, even when subjected to stressful conditions. The researchers discovered that certain dietary interventions could improve health markers, but the effect was limited.

'Big Brother' eyes encourage honesty, study shows

Researchers found people put nearly three times as much money into an honesty box when watched by a pair of eyes compared to a poster featuring flowers. The study suggests people are more likely to cooperate when feeling observed, with potential applications in curbing anti-social behavior or law enforcement.

Low intake of milk during pregnancy linked to decreased birth weight

A new study suggests that drinking the recommended amount of milk during pregnancy may help increase birth weight. The Canadian researchers found that women who limited their milk intake to one cup or less per day gave birth to babies with lower birth weights compared to those who consumed more milk.

Apple iPhone 17 Pro

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

Key nutrients critical for older infants' development

Improved breastfeeding rates over the past 25 years have led to high infant iron levels; human milk provides essential nutrients. Complementary foods in older infants' diets require improvement to meet nutritional needs.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Experts find better way to scrub milking hardware

Researchers at Penn State found that electrolyzed oxidizing water can effectively clean milk pipes without the need for harsh chemicals. The new method is also less expensive and has no skin irritation risks, making it a promising solution for the dairy industry.

Acne, milk and the iodine connection

Researcher Harvey Arbesman links acne and dairy products to the presence of iodine in milk. Studies have shown significant iodine levels in various countries' dairy products. Iodine intake has been linked to acne exacerbation since the 1960s.

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.

Skimmed milk reduces the risk of hypertension by 50 percent

A recent study published in the American Journal of Clinical Nutrition found that consuming skimmed milk products can significantly reduce the risk of hypertension by 50%. The research, which followed 6,000 people over two years, revealed no association between whole milk consumption and hypertension risk. These findings contribute to ...

Got milk? How breastfeeding affects HIV transmission

Researchers identified a human milk component that blocks HIV interaction with dendritic cells and inhibits viral transfer to CD4+ T-lymphocytes. This discovery has significant implications for developing agents to block HIV transmission.

A fatty acid found in milk may help control inflammatory diseases

A fatty acid found in milk, CLA, has been shown to inhibit the COX-2 protein, playing a significant role in many inflammatory diseases. Researchers believe that consuming dairy products daily may elicit an effect due to the small amount of anti-inflammatory CLA present.

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.

Ovarian cancer risk and consumption of milk products and lactose

A meta-analysis of epidemiological studies found a positive correlation between milk consumption and an increased risk of ovarian cancer. High intakes of dairy foods and lactose may contribute to this association, with a 13% increase in risk seen for every 10 grams of lactose consumed daily.

Elevated CRP can foil diet's ability to lower cholesterol

A recent study published in the Journal of Nutrition found that individuals with elevated C-reactive protein (CRP) levels cannot lower their LDL-cholesterol numbers with a Step 1 diet, even when soy protein is added. The study suggests that habitual consumption of a Step 1 diet may be beneficial for those with low CRP levels but delete...

Lactose intolerance linked to ancestral environment

Researchers found that people from Asia and Africa have lower lactase production due to harsh climates and diseases that made dairy farming unfeasible. In contrast, Europeans retain lactase due to historical dairy farming in their ancestral environments.

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.

Genes may influence nutritional composition of breast milk

Research reveals that genetic variants can impact the amount of DHA in breast milk, essential for brain and eye development. Women with certain genetic variants produced higher levels of DHA in their breast milk, which may have implications for infant nutrition and development.

Low-fat dairy may lower risk of type 2 diabetes in men

A recent study published in Archives of Internal Medicine found that consuming low-fat dairy products was associated with a nine percent lower risk of developing type 2 diabetes in male participants. The researchers analyzed data from over 41,000 men and followed them for 12 years to document new cases of type 2 diabetes.

PNAS highlights for the week of April 11 - 15

Researchers have successfully cloned meat and milk from bulls and cows, showing no significant differences in quality compared to naturally bred animals. Meanwhile, a study suggests that early humans may have driven elephant extinctions on multiple continents.

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.

Alcohol consumption disrupts breastfeeding hormones

A study found that alcohol consumption disrupts the hormonal balance of lactating women, leading to decreased oxytocin levels and increased prolactin levels. This can result in slower milk ejection and reduced milk production.

New study documents the detrimental impact of teen beverage choices

Researchers found a step-wise increase in soft drink consumption among US children as they age, leading to a decline in milk intake and increased calorie consumption. Milk remains a primary source of essential nutrients, including calcium, phosphorus, and potassium, but its consumption declines with age.

Nursing mothers having surgery -- How long a wait to breastfeed safely?

A new study suggests that breastfeeding mothers can safely resume nursing after undergoing surgery with the anesthetic propofol. The research found that less than 0.1% of the drug's dose is present in breast milk within 24 hours, minimizing infant exposure and justifying uninterrupted breastfeeding.

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.

Missing micronutrients - How best to nourish a child?

Research suggests that adding meat, milk, or energy-rich vegetable oils to cereal-based diets can improve iron, zinc, and vitamin B-12 intake in poor children. Biofortification of crops is also a possibility, but more research is needed to determine its impact.

Milk, fruits and vegetables may help reduce disability risk

A recent study found that consuming high amounts of dairy products and fruits/vegetables was associated with lower risk for functional limitations and disability. The researchers suggest that calcium and vitamin D from dairy foods, as well as antioxidants in fruits and vegetables, may play a role in reducing disability risk.

Urinary tract infections likely caused by tainted food

A recent study found that a strain of E. coli responsible for drug-resistant urinary tract infections was likely acquired from contaminated food animal sources. The researchers analyzed nearly 500 specimens and discovered one-quarter were microbiologically indistinguishable from human strains, highlighting the risk of foodborne illnesses.

Fluke 87V Industrial Digital Multimeter

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

Flame retardant exposure linked to house dust

A new study by NIST/EPA finds high concentrations of PBDEs in household dust, suggesting a primary source of exposure for humans. Small children are at highest risk due to their tendency to put hands and toys in their mouths.

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.

Study detects protein in human milk linked to reduced risk of obesity

Researchers at Cincinnati Children's Hospital Medical Center have detected high levels of adiponectin in human milk, a protein that may help regulate body fat and reduce the risk of obesity. The study suggests that early exposure to this protein through breast milk could influence metabolic health later in life.

Meta Quest 3 512GB

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

Understanding nutrition labels can lead to healthier eating

Researchers at the University of Illinois developed an activity called 'See it, Do it, Teach it' to help people understand nutrition labels and increase their calcium intake. The eight-week study showed that participants significantly increased their calcium consumption, getting closer to daily requirements.

Lactating mammary glands sense calcium

Researchers discovered that lactating mammary glands can sense changes in calcium levels and adjust milk production accordingly. The calcium-sensing receptor plays a key role in this process, allowing the gland to match milk production with the availability of calcium in the mother's body.

Premature babies benefit from breast milk, study says

A study of premature infants found that human milk, fortified in-hospital, was comparable to nutrient-enriched formula for growth and development. The study tracked the progress of 463 premature infants under four pounds at birth, showing better visual acuity outcomes with human milk.

Processing with flavonoids can mean tastier, heart healthy food

A new study from Penn State finds that flavonoids at heart-healthy levels do not automatically increase bitterness but can promote good flavor development and palatability in some food products. The presence of flavonoids was shown to limit the generation of off-flavors in heated food, including ultrapasteurized milk.

Full fat milk and butter may help prevent asthma

Research found that daily consumption of full cream milk and butter was associated with lower rates of asthma and wheeze in pre-school children. Antioxidants and other micronutrients in these products may play a role in this beneficial effect.

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.

Sweet drinks increase obesity, nutrition risk in kids

Children who consumed more than 12 ounces of sweetened drinks gained significantly more weight than those who drank less, due to increased caloric intake. The study also found that sweetened drinks displaced milk consumption, leading to lower calcium and zinc intake.

Accurate milk enzyme measurement may cut cheese processing cost

Researchers at Purdue University have developed a new method to accurately measure quantities of a cheese-ripening enzyme in milk. The study combines infrared spectroscopy with statistical analysis to determine the concentration of plasminogen, enabling the creation of a model of the enzyme system function.

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.

High-producing dairy cows are not more susceptible to illness

A Dutch study found that high-producing dairy cows were not more prone to mastitis than lower-producing counterparts, challenging a common assumption. Researchers infected cows with E. coli and monitored disease progression over three weeks, revealing no significant difference between the two groups.