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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 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.

New research suggests fat mass helps build bone mass in girls

A new study suggests that fat mass is essential for increasing bone size and thickness in girls, particularly during puberty. The research found that excessive reduction of fat mass in girls may increase the risk of osteoporosis later in life. In contrast, lean mass has a stronger impact on bone development in boys.

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.

How to build bone: Separate bone formation from bone destruction

In a study, oncostatin M was found to promote bone formation by blocking the production of a protein that inhibits bone growth when signaling through leukemia inhibitory factor receptor. This indicates the existence of a pathway for stimulating bone formation independently of bone destruction.

Sticks and stones break bones, but this UH study may prevent it

A team of researchers at the University of Houston has created a process to grow real human bone in tissue culture, allowing them to investigate how bones form and grow. The technology has potential applications in preventing bone loss in astronauts and patients with spinal cord injuries.

New stem cell technology developed at Hebrew University

Researchers at Hebrew University have developed a novel stem cell technology, immuno-isolation, to treat complicated bone fractures. The technology has been successfully used to treat seven patients with a combination of their own MSCs and blood products, offering a promising alternative to standard treatment methods.

Bone implant offers hope for skull deformities

A synthetic bone matrix offers hope for babies born with craniosynostosis by replacing fused bones and encouraging natural bone healing. The biodegradable implant could eliminate the need for multiple surgeries, resulting in improved developmental outcomes.

Apple iPhone 17 Pro

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

JCI online early table of contents: Nov. 16, 2009

Researchers have identified a microRNA (miR-2861) that regulates bone formation, and its mutation is linked to primary osteoporosis. In addition, studies on Lyme disease transmission revealed a biphasic mode of dissemination by Borrelia burgdorferi microbes within ticks.

New cause of osteoporosis: Mutation in a miroRNA

A new cause of osteoporosis has been identified: a mutation in the miR-2861 precursor that blocks expression of this crucial microRNA. This microRNA promotes bone formation and its absence is linked to primary osteoporosis in humans.

Developmental drug may help bone fractures heal after radiation exposure

A study by Pitt researchers found that a free-radical scavenger, JP4-039, accelerated bone fracture healing in mice treated with the drug after radiation exposure. This could have significant implications for pediatric cancer patients vulnerable to late effects of radiation on bone growth and development.

Archaeopteryx was not very bird-like

A new study found that Archaeopteryx, the iconic first bird, actually grew much slower than modern birds and had more reptilian features. This challenges the long-held assumption that rapid bone growth was necessary for flight.

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.

Bone-cell control of energy generation is regulated by the protein Atf4

The protein Atf4 plays a crucial role in regulating energy generation in osteoblasts, which control biochemical reactions that produce energy. Mice lacking Atf4 exhibit lower fat mass and blood glucose levels due to increased insulin sensitivity, highlighting the importance of Atf4 in glucose metabolism.

Award for pioneering stem cell research to mend broken bones

A £4M funding award will support a multidisciplinary study combining stem cell science and tissue engineering to develop new treatments for bone fractures and orthopaedic problems. The research aims to improve our understanding of skeletal cell activity, scaffold development, and environmental factors that affect tissue regeneration.

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.

Focus on the formation of bones, teeth and shells

Scientists at Eindhoven University of Technology have made a groundbreaking discovery in biomineralization, the process that forms bones, teeth, and shells. They were able to capture three-dimensional images of nanoparticles using the world's most modern electron microscope, revealing the earliest stages of this complex process.

MIT: New tissue scaffold regrows cartilage and bone

MIT engineers have developed a new tissue scaffold that can stimulate bone and cartilage growth when transplanted into joints. The technology has shown promise in small defects and could offer a more effective, less expensive, and easier alternative to current treatments for sports injuries and arthritis.

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.

Purdue study finds dairy better for bones than calcium carbonate

A Purdue University study shows that dairy promotes better bone growth and strength compared to calcium carbonate, with bones of rats fed nonfat dry milk being longer, wider, more dense and stronger. The study found a strong effect of having dairy as a calcium source followed by periods of inadequate calcium.

Liking sweets makes sense for kids

Research from the University of Washington and Monell Center found that children's high growth rate is linked to their heightened liking for sweetness. Children prefer higher levels of sweetness as their physical growth increases, but this preference declines as growth slows down.

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.

First high-resolution images of bone, tooth and shell formation

Researchers used a special electron microscope to make three-dimensional images of nano-particles that form the basis of bone, tooth and shell growth. The results provide improved understanding of these processes and promise better materials for industrial applications.

Misplaced metamorphosis

A recent study at the University of Pennsylvania School of Medicine reveals that immature cells in blood vessels deep within skeletal muscle orchestrate aberrant bone formation. Cells from the inflammatory response to injury trigger skeleton-stimulating proteins to transform muscle tissue into bone.

Getting down to specifics: Blocking one RANK function inhibits bone loss

Researchers developed a cell-permeable inhibitor of the mouse protein RANK, which blocks osteoclast formation and function, preventing bone destruction. The compound protected against bone loss in two mouse models, suggesting similar drugs may be beneficial for individuals with diseases involving bone destruction.

Drug doubles survival of patients with pre-leukemia

A new study published in The Lancet Oncology found that azacitidine significantly improves the survival of patients with high-risk forms of myelodysplastic syndromes (MDS). Patients treated with azacitidine had a median overall survival of 24.5 months, compared to 15 months for those receiving conventional care.

Leptin's long-distance call to the pancreas

Researchers found that leptin enlists the sympathetic nervous system to prevent bone-making cells from releasing osteocalcin, which stimulates insulin release. This back-door route could lead to a new treatment for diabetes using osteocalcin.

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.

Adiponectin is a metabolic link between obesity and bone mineral density

Researchers discovered adiponectin is a metabolic link between obesity and reduced bone mineral density. Adiponectin levels were lower in obese humans and mice compared to lean controls. Higher levels of adiponectin impede bone development, leading to weaker bones and increased risk of fractures.

Crucial hormonal pathway to bone building uncovered

A study at the University of Alabama at Birmingham has identified a crucial co-receptor in parathyroid hormone signaling that selectively stimulates bone formation. This finding could lead to new osteoporosis drugs and better bone-building therapies by targeting specific cell receptors responsible for calcium uptake from the blood.

Hydrogels provide scaffolding for growth of bone cells

Researchers at Carnegie Mellon University developed hydrogels that promote the growth of pre-osteoblast cells, aiding bone development. These gels interact with growth factors like demineralized bone matrix, providing scaffolding for bone cell proliferation and new tissue formation.

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.

Accelerated bone turnover remains after weight loss

After losing a significant amount of weight through calorie restriction, bone turnover remains accelerated, leading to increased fragility. Researchers found that moderate weight loss followed by weight maintenance resulted in persistent elevated bone remodeling markers.

Farming at young age may lead to bone disease in adulthood

A recent study suggests that excessive weight-bearing activities in children can affect the mechanical properties of developing bones, leading to a higher risk of degenerative skeletal disorders later in life. Researchers found that young boys who participated in regular farming activities had significantly lower bone-damping ability c...

Meta Quest 3 512GB

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

Novel model of osteosarcoma

Researchers have developed a high-fidelity animal model of osteosarcoma by genetically modifying mice to lack the p53 and Rb tumor suppressor genes. This model closely recapitulates human osteosarcomagenesis, providing valuable insights into the disease's genetic contributions.

JCI online early table of contents: June 12, 2008

A new class of natural compounds has been identified that can enhance the sensitivity of mouse cancer cells to standard anticancer chemotherapeutic agents. Fever, on the other hand, is associated with prolonged QT intervals in heart cells of patients with LQT-2, a potentially fatal genetic disease. These findings suggest potential ther...

Research shows timing improves cleft palate surgery

Researchers have found that delaying gum tissue closure improves outcomes for cleft palate patients. The study, led by Dr. Damir Matic, involved 136 children and found that closing the cleft at 8-9 years old prior to canine tooth eruption leads to better facial growth and reduces damage.

Reconstructing mandibular defects with bioengineered tooth and bone

Researchers have successfully developed bioengineered dental tissues resembling naturally formed teeth, including dentin, enamel, pulp, and periodontal ligament. The novel mineralized tissue interface formation demonstrates the therapeutic potential for regenerating tooth and bone from autologous stem cells.

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.

NYU dental professor discovers biological clock

A newly discovered biological clock controls many metabolic functions and determines life span, operating on shorter time intervals for small mammals like rats and longer ones for larger animals like chimpanzees. The discovery was made by NYU dental professor Dr. Timothy Bromage while observing incremental growth lines in tooth enamel.

Researchers control growth rate of replacement blood vessels, tissues

Researchers at the University of Michigan have discovered a method for controlling the growth rate of replacement tissue and forming new blood vessels. This breakthrough could be used in various medical procedures, such as bone grafts and dental treatments, to help patients with wound healing problems.

Function of molecular switch pinpointed in severe congenital neutropenia

Researchers have identified the molecular mechanics behind Severe Congenital Neutropenia (SCN), a deadly disease characterized by a deficiency of neutrophils. The discovery of GFI1's role in regulating neutrophil development has provided new avenues for understanding the molecular basis of SCN.

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.

Notch controls bone formation and strength

Researchers at Baylor College of Medicine found that Notch stimulates early proliferation of osteoblastic cells responsible for bone formation. However, when Notch function is abolished in these cells, osteoporosis occurs due to an imbalance between bone formation and resorption.

Procedure developed at Yale creates new bone

A new technique developed at Yale School of Medicine promotes rapid bone formation by removing bone marrow and injecting a hormone, offering a promising alternative to current treatments for weakened or fractured bones. The study, conducted in mice, shows that this procedure creates new bone tissue with improved biomechanical properties.

Researchers discover protein that controls bone growth

A research team has uncovered the molecular mechanism by which osteocrin controls bone growth, a discovery that may have important implications for people suffering from bone diseases affecting skeletal growth. Osteocrin was found to locally control the bone's supply of a hormone known as CNP, regulating bone growth.

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.

Ancient amphibians left full-body imprints

Fossilized body imprints of three previously unknown, foot-long salamander-like critters have been found in 330 million-year-old rocks. The imprints provide rare information about the animals' webbed feet, skin proportions and outer skin characteristics.

Engineers developing new cements to heal spinal fractures

Engineers are developing new biological cements to repair burst fractures of the spine, a major leap forward in treatment. The novel cement materials mimic the chemical composition of bone and can be injected at the fracture site to stabilize the spine with minimal invasive surgery.

Bone-growing nanomaterial could improve orthopaedic implants

Researchers at Brown University have developed a new material that enhances bone growth on orthopaedic implants, increasing the success rate of joint replacements and other implants. The new material, created by applying carbon nanotubes to anodized titanium, encourages bone cells to grow faster and produce more calcium.

New approaches to reduce scarring

Researchers examine hypertrophic scar formation, current treatments, and promising research areas to advance the field. Current treatments for hypertrophic scarring are estimated to cost at least $4 billion annually in the US.

Fluke 87V Industrial Digital Multimeter

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

Fat still on the children's menu

Research suggests that children can safely consume fat as part of a healthy diet, contrary to concerns over obesity. Children's bodies are more efficient at burning fat relative to energy expenditure due to their high growth rates and higher protein synthesis needs.

Research shows skeleton to be endocrine organ

Researchers at Columbia University Medical Center have discovered that the skeleton acts as an endocrine organ, releasing osteocalcin to regulate blood sugar and fat deposition. This hormone boosts insulin sensitivity and enhances insulin-producing cells, preventing type 2 diabetes in mice.

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.

Women up to age 30 at risk for bone loss, study finds

Research suggests that young women are at risk for bone loss if they follow extreme diets and engage in rigorous exercise. Women may need to consume more calories to support bone health, as low energy availability can impair bone formation.

JCI table of contents -- June 1, 2007

Researchers found that pregnant women's exposure to the flu vaccine stimulates the development of immune cells in their babies. The study used a new technique to detect antigen-specific T cells and showed that B and T cell responses occur in utero following maternal vaccination against influenza.