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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

Total synthesis of hemiketalTTX

A team from Peking University successfully synthesized hemiketalTTX in 23 steps with a total yield of 0.7%, addressing the scarcity of this natural toxin. The synthesis utilizes a unique Prins cyclization reaction to construct the [3.2.1] bridged ring skeleton.

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UC Davis researchers achieve total synthesis of ibogaine

Researchers at UC Davis have successfully synthesized ibogaine and its related compounds using a new, efficient method. The study's findings suggest that these analogues may be useful in treating substance use disorders and other conditions, and highlight the potential for safer and more effective medicines.

Breaking carbon–hydrogen bonds to make complex molecules

A team of scientists has synthesized a highly complex natural molecule using a novel strategy that functionalizes normally nonreactive C–H bonds. The new method opens up possibilities for synthesizing previously unavailable chemicals, representing a whole new way for chemists to create materials.

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Chemists showcase power of pathbreaking method to make complex molecules

Chemists at Emory University and Caltech have developed a revolutionary strategy for functionalizing carbon-hydrogen bonds, transforming low-cost materials into complex building blocks of organic chemistry. The breakthrough enables the synthesis of complex natural molecules with antimicrobial properties.

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Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

New CPRIT chemistry professor to enhance cancer research at Rice

David Sarlah joins Rice University as a CPRIT-funded professor to contribute to the university's cancer research, focusing on natural product synthesis and total synthesis for cancer biology. His lab aims to streamline production of compounds used in cancer therapy.

New approach in the synthesis of complex natural substances

Researchers at University of Basel have developed a new method to synthesize complex natural substances like terpenes, which can be used as the basis for new medications. The approach allows for controlled molecular structure and targeted changes to improve properties, paving the way for the development of new therapeutic agents.

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Total recall on HIV

Researchers at Kyoto University successfully synthesized the structure of Lancilactone C, a rare anti-HIV compound. The team's method revealed an incorrect initial structure and showed that electrocyclization occurs in both synthesis and biosynthesis, leading to potential development of novel antivirals.

Different recipe, same sauce

Researchers at Kyoto University have successfully synthesized shagene A, a tricyclic terpenoid effective against the parasitic disease leishmaniasis. The compound kills the parasite without causing detrimental side effects and has attracted attention for its potential in drug discovery.

Productive cascade

A German team led by Thorsten Bach successfully synthesized agarozizanol B, a complex sesquiterpene with potential pharmaceutical applications. The researchers developed a photochemical reaction cascade to form the molecule from an indanone derivative, achieving both enantiomers of the natural product.

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Total synthesis of cotylenin A for a new anticancer drug without side effects

Researchers at Waseda University have successfully developed a method for the total synthesis of cotylenin A, a plant growth regulator with promising bioactivity as an anti-cancer agent. The new method allows for the production of a stable and effective anticancer drug without the side effects associated with traditional treatments.

Making puffer fish toxin in a flask

Researchers have introduced a novel total synthesis method for tetrodotoxin, a strong nerve toxin with potential as a pain reliever for cancer treatment. The new route enables easy and reliable production of the compound.

A new strategy for the synthesis of complex natural products

Researchers at the University of Basel have developed a new strategy for synthesizing complex natural products, including Epicoccin G and Rostratin A, using C-H bond activation. The approach results in high yields and reduces the number of steps compared to previous methods, opening up new avenues for medicinal applications.

Harvard chemists' breakthrough in synthesis advances a potent anti-cancer agent

Researchers at Harvard University have synthesized sufficient quantities of the potent anti-cancer agent E7130 to enable rigorous studies of its biological activity, pharmacological properties, and efficacy. The team's achievement is a landmark in drug discovery, providing new insights into the molecule's complex mode of action and pot...

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Rice University lab simplifies total synthesis of anti-cancer agent

The Rice University lab has developed a streamlined total synthesis of delta12-prostaglandin J3, a molecule with potential as an anti-cancer agent. The new method requires only six steps from commercially available starting materials, making it more efficient and desirable for large-scale synthesis.

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HKU chemists develop new strategy to synthesize molecule

A team of researchers from the University of Hong Kong has successfully developed a novel strategy for synthesizing cortistatin A, a molecule with potent anti-angiogenic activity. This breakthrough could lead to the creation of more effective anti-cancer therapies.

Epicolactones -- the 8-step path

Researchers at Ludwig-Maximilians-Universität München develop efficient synthesis of epicolactone, a complex natural product produced by the endophytic fungus Epicoccum nigrum. The 8-step pathway reveals how the molecule is assembled and provides insight into its biochemical significance.

They were right after all

Researchers Aaron C. Smith and Robert M. Williams successfully reproduced the Rabe-Kindler protocol for synthesizing quinine, a key step in its 'formal' total synthesis. They found that using aluminum powder as a reducing agent was crucial to achieving high yields of quinine.

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