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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

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Annals of Internal Medicine, tip sheet, September 17, 2002

The USPSTF recommends that physicians routinely screen women over 65 for osteoporosis, a thinning of the bones that can lead to bone fracture. Women at higher than average risk should begin screening at age 60. Early nephrologist care is associated with better outcomes for kidney disease patients, particularly those with African-Americ...

Artificial liver trials show progress, as transplant candidates wait

Researchers have made significant strides in artificial liver technology, with 20 patients using the albumin dialysis approach in a phase I trial. The system has shown promise in reducing blood toxins and reversing coma and shock, offering hope to those waiting for liver transplants.

Simple intervention improves quality of dialysis treatment

Researchers identified three barriers to adequate dialysis: inadequate prescriptions, catheter use, and shortened treatment time. Interventions addressed these barriers, resulting in higher quality treatment and improved patient outcomes. The study aims to re-examine the federal reimbursement system to encourage high-quality care.

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

Molecular self-assembly techniques used to coat biomedical substrates

Biocompatible thin films have been successfully fabricated on various biomedical substrates using electrostatic self-assembly techniques. These films can inhibit restenosis, a tissue buildup that occurs in blood vessels after trauma, and have potential applications in stents and dialysis tubing.

High pulse pressure associated with greater death risk in dialysis patients

A study of dialysis patients found that high pulse pressure is associated with a greater risk of death, contradicting the idea that lower blood pressure is better. Researchers analyzed over 37,000 patients and discovered that the difference between systolic and diastolic blood pressures can indicate mortality risk.

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Amino acid supplements improve dialysis patients' health

Dialysis patients who took amino acid supplements experienced a significant increase in albumin levels, with an average rise of 0.22 g/dL for hemodialysis patients and 0.01 g/dL for peritoneal dialysis patients. This study suggests that simple nutritional interventions can have a positive impact on the health of dialysis patients.

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Americans Skip Dialysis; Swedes And Japanese Don't, Wake Forest Study Shows

A Wake Forest University study found that US dialysis patients are more likely to miss treatment sessions compared to their European and Asian counterparts. Factors contributing to this discrepancy include differences in dialysis prescription, patient health, medical system eligibility, and patient independence.

Low-Protein Diet Postpones Dialysis

A low-protein diet can safely delay dialysis treatment for up to a year in patients with severe chronic renal failure. The diet, rich in fruits and vegetables, provides essential nutrients without side effects.

Doctors Reverse Kidney Failure In An HIV-Infected Patient

In a groundbreaking case, doctors at the University of Maryland Medical Center reversed kidney failure in an HIV-infected patient by putting them on high-intensity antiretroviral therapy. The patient's kidneys regained normal function, and their viral load decreased significantly.

Treatment Of Kidney Disease In Children Varies By Race

Researchers found that black children are nearly 2.5 times more likely than white children to receive hemodialysis versus peritoneal dialysis. The disparity was observed across different age groups, with younger black children being most likely to opt for hemodialysis.

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