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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

Bacteria may travel thousands of miles through the air globally

Researchers propose the 'air bridge' hypothesis, suggesting bacteria can be transported globally through the air, sharing antibiotic resistance genes. Studies collected from hot springs worldwide found identical viral DNA memories in bacteria from distant locations.

Celestron NexStar 8SE Computerized Telescope

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

Uncovering uncultivated microbes in the human gut

Researchers reconstruct nearly 61,000 microbial genomes from human gut metagenomes, uncovering 2,058 previously unknown species and shedding light on the metabolic capabilities of uncultivated microbes. The study improves genomic resources for global populations, especially in regions with limited data.

Bacteria may help frogs attract mates

Brazilian scientists have found that the strong odor released by some amphibian species is produced by bacteria, assisting in the animal's mating process. The study suggests that the odor serves to permit mutual recognition between males and females of the same species for mating purposes.

THOR wrangles complex microbiomes into a model for improving them

A new model microbiome community, THOR, has been developed by researchers to improve human health and soil productivity. The community of bacteria produced complex traits such as biofilms, which could lead to the development of new antibiotics and improved crop yields.

How bacteria can help prevent coal ash spills

Researchers at North Carolina State University have developed a technique using bacteria to create biocement in coal ash ponds, making them stiffer and more difficult to spill. The resulting biocement can also trap potentially toxic metals in the coal ash, reducing environmental and public health concerns.

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Almost 2,000 unknown bacteria discovered in the human gut

Researchers identified nearly 2000 novel bacterial species in the human gut using computational methods, revealing significant geographical diversity and underscoring the importance of collecting data from underrepresented populations to achieve a comprehensive understanding of the human microbiome.

New technique pinpoints milestones in the evolution of bacteria

Researchers use genetic analysis to determine when certain groups of bacteria evolved, providing insight into early environments and animal life. They found that three major groups of soil bacteria diversified around 450-350 million years ago, likely in response to changes in the environment.

Where does this contamination come from?

Researchers at TU Wien have developed a simple method for detecting water contamination from ruminants directly at source using a DNA test. The technology uses targeted DNA amplification and detection to identify specific bacteria found in the intestinal microbiome of grazing cattle.

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.

Microbes help make the coffee

Studies show that lactic acid bacteria positively impact coffee fermentation, yielding fruity notes and enhancing flavor. Microbial communities also affect the build-up of fermentation-related metabolites on coffee beans, influencing overall quality.

Discovery of bacterial signature of intestinal disease

Researchers have found a bacterial signature associated with intestinal disease, including Crohn's and ulcerative colitis. The study identified 18 new species of bacteria that can affect disease outcome, highlighting the importance of individualized approaches to treatment.

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

Red wolf DNA found in mysterious Texas canines

A team of biologists has discovered red wolf DNA in a group of canines living on Galveston Island, Texas, raising hopes for the species' survival. The finding, which may represent lost genes from captive breeding, challenges conventional science's dismissal of 'red wolves' as coyotes.

A microbe's membrane helps it survive extreme environments

Stanford researchers discovered a protective lipid-linked cellular membrane in archaea, allowing them to thrive in highly acidic habitats. The discovery could provide new evidence about the evolution of life on Earth and shed light on molecular fossils.

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DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Modeling the microbiome

Researchers analyzed the interactions between five core species of bacteria found in the fly gut, revealing a nuanced tradeoff between lifespan and fecundity. The study suggests that the presence or absence of individual species influences the host's fitness, and that the microbiome's influence cannot be solely attributed to its parts.

How microbial interactions shape our lives

Researchers have found that individual species in the gut microbiome account for only a quarter of the effect on fly lifespan, while interactions between species play a crucial role in determining fitness. The study highlights the importance of understanding complex microbiome interactions to better comprehend human health.

The common ancestor of species was rod-shaped

The study found that the common ancestor of Deinococcus species was rod-shaped, with six conserved genes (MreB, MreC, MreD, MrdA, RodA, and RodZ) present in all rod-shaped species. Phylogenetic analysis revealed that major gene loss occurred four times during evolution, generating spherical shape species.

Bursting bubbles launch bacteria from water to air

Researchers found that bacteria can affect a bubble's longevity, causing it to last up to 10 times longer than an uncontaminated one. The team discovered that bacterial secretions act as surfactants, extending the lifetime of contaminated bubbles by reducing surface tension and making them more resistant to perturbations.

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.

Immunity connects gut bacteria and aging

A study published in Immunity found that the gut bacterium Lactobacillus plantarum produces excessive lactic acid when its receptor protein PGRP-SD is disrupted, leading to oxidative stress and accelerated aging. Increasing PGRP-SD levels prevents this effect and extends lifespan.

Regeneration in the digestive tract

Researchers found that gut bacteria partially recovered six months after antibiotic treatment, but with a loss of sensitive bacterial species. Resistance genes also increased in the remaining bacteria. Over time, good microbes like bifidobacteria took over, normalizing the microbiome.

Barn swallows may indeed have evolved alongside humans

Researchers found that barn swallow subspecies evolved independently of humans but in sync with human expansion and settlement, suggesting a significant link between the two species. The study suggests a 'founder event' where swallows rapidly expanded into new environments alongside humans.

OU professors to lead global research on bluegreen algae in freshwaters

A global research team led by OU professors Karl D. Hambright and Lee R. Krumholz is investigating the complex interactions between cyanobacteria and associated bacteria in freshwater blooms. The team aims to discover new avenues for bloom mitigation through a deeper understanding of microbial co-evolution.

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.

Letting the sunshine in may kill dust-dwelling bacteria

Researchers found that up to 12% of bacteria on average were alive and able to reproduce in dark rooms. In contrast, only 6.8% of bacteria exposed to daylight and 6.1% of those exposed to UV light remained viable. This suggests that daylight can reduce the risk of dust-borne infections by killing dust-dwelling bacteria.

'Spacesuits' protect microbes destined to live in space

Researchers at UC Berkeley have developed protective suits for bacteria that allow them to thrive in environments without oxygen. The hybrid system mimics photosynthesis and captures carbon dioxide, producing various chemical compounds that can be used by industry or in space colonies.

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.

Set in amber, fossil ants help reconstruct evolution of fungus farming

Researchers discovered that fossil ants preserved in amber had specialized structures to support bacteria that produced antibiotics, helping them combat crop diseases. This ancient ant-bacteria symbiosis evolved independently three times and may hold clues for reducing antibiotic resistance in humans.

How some algae may survive climate change

A Rutgers-led study reveals how green algae adapted to tolerate hostile conditions by stealing genes from bacteria, providing clues for engineering more resilient algae. The findings suggest that these hardy species can survive climate change and offer potential solutions for biofuel production and other applications.

Heavy metal acts as heavy artillery against bacterial infections

Researchers found gallium effective in curbing bacterial growth in mice and patients with cystic fibrosis or chronic lung infections, including those infected with Pseudomonas aeruginosa. Gallium's slow development of resistance makes it a potential alternative to standard antibiotics.

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.

Bird bacteria study reveals evolutionary arms race

A recent study has found that birds develop resistance to bacterial infections, which in turn leads to the evolution of more potent pathogens. This host-pathogen coevolution process plays a key role in shaping species' defenses and highlights the importance of understanding emerging infectious diseases.

A novel bacterial species named after a Finnish Nobelist A.I. Virtanen

Researchers at the University of Helsinki identified a novel species of Propionic Acid Bacteria, which was named after A.I. Virtanen due to its genetic differences from previously described strains. The discovery honors Virtanen's pioneering work on PAB, a topic often overlooked in his biographies.

Scientists 'fix' bacterial tree of life

Researchers create standardized model by reclassifying bacteria into 121 separate genus groups across 29 different families. The study uses metagenomics and genome sequencing technology to overcome historical difficulties in classifying microbial species.

Chronic malnutrition in children: A new gut microbial signature

Researchers identified a unique microbial signature in the guts of malnourished children, characterized by widespread presence of bacteria normally found in noses and mouths. The study, part of the Afribiota project, aims to improve treatment and diagnosis of chronic malnutrition.

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.

Fluorescent probe sheds light on tuberculosis bacteria

Scientists have created a fluorescent probe that can tag single specimens of tuberculosis bacteria, which could lead to faster diagnosis and more effective treatments. The probe works by detecting the presence of an enzyme called BlaC, allowing for the identification of live versus dead bacteria.

Fruit flies farm their own probiotics

Researchers discovered that fruit flies have a diverse and stable gut microbiota, with bacteria able to colonize the fly's intestine. This discovery sheds light on how fruit flies 'farm' bacteria, similar to humans using yeast or bacteria in food production.

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.

Changes in bacterial mix linked to antibiotics increase risk for type 1 diabetes

A single course of antibiotics early in childhood may increase the risk for Type 1 diabetes, according to a study published in eLife. The research found that four bacterial species groups were significantly more abundant in the guts of mice treated with the antibiotic, and likely involved in driving progression of the disease.

Combining antibiotics changes their effectiveness

A large-scale screening of antibiotic combinations has identified over 500 pairs that improve antibiotic effectiveness against multi-drug resistant bacteria. These pairings could help combat antibiotic resistance by selectively targeting harmful bacterial species, reducing the development of resistance and its transmission.

Dynamic modeling helps predict the behaviors of gut microbes

A new study from Ophelia Venturelli and her team at the University of Wisconsin-Madison uses dynamic modeling to predict gut microbiome behaviors, reducing the need for laborious lab experiments. The model also reveals a balance between positive and negative interactions between microbes.

How competition and cooperation between bacteria shape antibiotic resistance

New computational simulations suggest that antibiotic treatment can suppress resistant species via attack on sensitive partner species in mutualistic relationships, and spatial arrangement influences cross-protection. The study found that competing species are more susceptible to suppression than mutually interacting species.

Researchers devise new way to discern what microbes eat

Researchers developed a new method to identify microbe food sources using carbon stable isotope ratios, providing insights into microbial communities and their impact on animal and plant health. The technique uses mass spectrometry and software to link microbes with substrates, enabling the study of complex microbial relationships.

Meta Quest 3 512GB

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

Plant symbioses -- fragile partnerships

A comparative study of 37 plant genomes reveals that the capacity to form root-nodule partnerships has repeatedly been lost during evolution. Despite providing fixed nitrogen, these symbioses no longer benefit many plants due to parasitic bacteria invasion or other factors.

A hidden world of communication, chemical warfare, beneath the soil

Researchers have discovered that soil microbes use chemical signals to defend against each other and devastating crop diseases. The study found that certain bacteria can induce fungi to produce protective compounds, while the fungus's own defense mechanisms are triggered by the bacterial invasion.

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

AI detects patterns of gut microbes for cholera risk

Researchers used machine learning algorithms to identify patterns within human gut bacteria that predict susceptibility to cholera. The study found that a set of 100 microbes associated with the disease can be predicted by AI, potentially leading to improved vaccines and preventive approaches.

We still don't know how strange celibate animals evolve

A new study casts doubt on a leading theory for bdelloid rotifers' evolution, suggesting DNA repair following desiccation may not be key to their success. The researchers found no evidence of the predicted differences between species that can and cannot survive desiccation.

Earth BioGenome Project aims to sequence genomes of 1.5 million species

The Earth BioGenome Project proposes sequencing genomes of all known eukaryotic species, an undertaking estimated to take 10 years and cost $4.7 billion. This initiative aims to create a complete digital library of life that will guide future discoveries, building on the success of previous genomics projects like the Human Genome Project.