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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

Using microRNA fit to a T (cell)

Scientists have engineered B cells to synthesize and deliver microRNA, a non-coding RNA that can be used to introduce or inhibit specific proteins. This achievement may lead to new therapeutic applications, including vaccination and cancer treatment.

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Research reveals new understanding of X chromosome inactivation

Researchers have broadened the understanding of how cells regulate silencing of the X chromosome, finding indications of gene activity inside and outside the Xist cloud. The study's findings suggest a more subtle regulation mechanism than previously thought, with potential implications for cancer therapy and non-coding RNA function.

New insight into placental growth and healthy pregnancy

Scientists have discovered that the controlled release of microRNA miR-675 slows down placental growth before birth, regulating a key factor in healthy pregnancy. This finding has important implications for understanding how environmental signals and diet may influence fetal development.

'Junk DNA' can sense viral infection

Researchers have found that non-coding RNA molecules can detect the presence of viruses in cells, providing a potential tool for developing new treatments. The discovery was made using deep sequencing technology and has been used to identify infected cells with 100% accuracy.

Noncoding RNAs alter yeast phenotypes in a site-specific manner

A team of scientists has discovered that two competing noncoding RNAs play a crucial role in regulating FLO11 gene expression in yeast cells, allowing them to adapt to different environments. This finding provides new understanding of location-dependent gene expression and its significance in various biological processes.

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Non-coding RNA relocates genes when it's time to go to work

Researchers at UC San Diego School of Medicine discovered that non-coding RNAs TUG1 and NEAT2 relocate genes to activate their function in response to growth signals. This process provides a new understanding of the interaction between regulated genes and human diseases.

A mystery solved: How genes are selectively silenced

Researchers have discovered a crucial mechanism for regulating gene expression, where noncoding RNAs interact with DNA to silence specific genes. This breakthrough sheds light on the complex interactions between epigenetic regulation and noncoding RNA molecules.

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CSHL researchers pinpoint structure-building role for 2 noncoding RNAs

Researchers have discovered that two noncoding RNAs, MENε and MENβ, play a critical role in maintaining the structure of paraspeckles, a compartment within the cell nucleus. This discovery sheds light on the functional roles of noncoding RNAs in regulating gene activity and responding to stress signals.

Early-stage gene transcription creates access to DNA

Researchers have discovered a novel mechanism in gene expression where non-coding RNAs create access to DNA, allowing transcriptional activation proteins to initiate gene expression. This process involves the transient synthesis of non-coding RNAs that unfurl tightly wound DNA, enabling gene expression.

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RNA may play larger role in cell's gene activity, Stanford researchers find

Researchers at Stanford University School of Medicine have discovered that large, seemingly useless pieces of RNA play a crucial role in regulating gene activity across vast portions of the human genome. This finding suggests that ancient RNA molecules can influence cancer development and stem cell maintenance.

Jefferson researchers uncover new way nature turns genes on and off

Scientists at Thomas Jefferson University have identified a new mechanism for controlling gene expression in fruit flies, involving non-coding RNAs that regulate HOX genes. This discovery could lead to improved understanding of diseases like ALL and its connection to misregulated HOX genes.

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Non-coding RNAs help silence the mammalian transcription

Researchers discover non-coding RNA transcript Kcnq1ot1 is essential for paternal-specific gene silencing in mice. The study suggests that mammals have co-opted multiple transcriptional regulatory mechanisms to control imprinted genes, supporting the idea that imprinting evolved gradually over time.

Mysterious molecules begin to yield their secrets

Researchers at Scripps Research and GNF develop a strategy to identify functions of noncoding RNAs, which are abundant in human cells. The team screened a library of noncoding RNAs and identified eight that appeared to have functional roles, including one that regulates nuclear factor of activated T-cells (NFAT) signaling.