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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

Kidney failure risk for organ donors 'extremely low'

A new Johns Hopkins research reveals that kidney failure is much less prevalent in living kidney donors than in the general population. The study found a lifetime rate of kidney failure in donors to be 90 per 10,000, compared to 326 per 10,000 in non-donors.

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Targeting certain kidney cells may help treat kidney failure

Researchers have found that certain cells contribute to kidney function decline by causing destructive scarring, making them attractive targets for treatments. An additional but limited reserve of mature and functional filter cells is present at birth, which can be preserved and protected through pharmacological strategies.

Preeclampsia during pregnancy may be linked with kidney failure risk

A new study links preeclampsia during pregnancy to a higher risk of developing kidney failure. Researchers analyzed data from Olmsted County, MN and found that individuals with preeclampsia were more likely to develop kidney failure later in life, but this association was attenuated when diabetes and hypertension were considered.

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Gene hastens kidney disease progression in African-Americans

A recent study has found that the APOL1 gene variant is independently associated with a more aggressive course of disease, particularly in African-Americans. The variant is linked to twice the rate of CKD progression and loss of kidney function in those with chronic kidney disease.

Gene puts African-Americans at higher risk for kidney failure

Genetic variants in the APOL1 gene increase the risk of kidney disease progression and end-stage renal disease in African Americans. Approximately 1 in 10 blacks possess high-risk variants, which speed up kidney disease progression and substantially increase the risk of developing kidney failure.

Acid levels in the diet could have profound effects on kidney health

Studies suggest that consuming more fruits and vegetables can counteract the negative effects of dietary acid on kidney health. Research found that individuals with hypertensive nephropathy who received extra fruits and vegetables or an oral alkaline medication experienced preserved kidney health, while those with high dietary acid lev...

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

Researchers create tool to predict kidney failure or death after injury

A risk score calculation developed by Brigham and Women's Hospital researchers can help doctors predict which patients with rhabdomyolysis are at risk for severe kidney failure or death. The model uses routine clinical variables to identify patients who may benefit from different treatment options.

Risk of kidney disease doubled with use of fluoroquinolone antibiotics

A recent study published in the Canadian Medical Association Journal found that current use of fluoroquinolone antibiotics increases the risk of acute kidney injury by two-fold. The risk was highest with ciprofloxacin and moxifloxacin, and concurrent use with renin-angiotensin-system blockers further increased the risk.

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Technique that removes additional toxins prolongs dialysis patients' lives

A technique that removes additional toxins during dialysis decreased kidney failure patients' risk of dying from any cause by 30% over three years, with lower risks of heart-related causes and infections. The study's findings suggest OL-HDF may indeed prolong kidney failure patients' lives compared to conventional hemodialysis.

Irregular heart beat elevates risk of kidney failure

Researchers at UCSF and Kaiser Permanente have found that atrial fibrillation significantly increases the risk of end-stage renal disease among patients with chronic kidney disease. The study involved over 206,000 adults and showed that those who developed atrial fibrillation were 67% more likely to progress to kidney failure.

Kidney failure under the microscope

Researchers at Monash University used advanced microscopy techniques to visualize the movements of white blood cells in healthy and diseased kidneys. They found that leukocytes are constantly circulating through and patrolling blood vessels within healthy kidneys, but become agitated during disease, causing inflammation and kidney damage.

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Problems with mineral metabolism linked with kidney disease progression

A study found that disordered mineral metabolism worsens with progressive chronic kidney disease and is linked to a higher risk of kidney failure among African Americans. Measuring mineral metabolites may be a useful way to determine CKD patient prognosis, while targeting these metabolites could help slow disease progression.

Treating coronary heart disease in kidney failure patients

A study found that open heart surgery is safer than angioplasty for dialysis patients with blocked arteries surrounding the heart, with five-year survival rates over 90% without kidney disease but dismal in kidney failure patients. Heart disease is a leading cause of death in kidney failure patients, affecting 30-60%.

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What's your lifetime risk of developing kidney failure?

A study estimates that approximately 1 in 93 men and 1 in 133 women of middle age may develop kidney failure in their lifetime. People with reduced kidney function face a higher risk, with men facing a 7.51% chance and women a 3.21%.

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Homelessness linked to poor health among kidney disease patients

Homeless individuals with chronic kidney disease are more likely to develop depression, substance abuse, and kidney failure. They also overuse emergency medical services, leading to increased public costs. Research highlights the need for better healthcare access and support services for homeless patients.

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

Children today face reduced racial disparities in kidney transplantation

A US policy instituted in 2005 has reduced racial disparities in kidney transplantation among children, allowing more kids from diverse backgrounds to receive deceased donor kidneys. The study found that Share 35 has attenuated racial disparities in terms of how likely and how soon children will receive a deceased-donor kidney transplant.

Kidney care reports don't line up with care billed by physicians

A study found that information on a mandatory Medicare form regarding kidney disease patients' care doesn't accurately reflect the actual care billed by physicians. The report's accuracy varies by patient characteristics and declines over time, emphasizing the need for improved reporting to ensure public health surveillance and planning.

Live donor's age has little effect on health of a transplanted kidney

A recent study by John Gill and colleagues found that the age of a live donor between 18 to 64 years has minimal effect on the survival of transplanted kidneys. This finding suggests that patients over 39 years old may benefit from participating in living donor paired exchange programs or kidney swaps.

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Chronic kidney disease a recipe for kidney failure? Not necessarily

A study published by the American Society of Nephrology found that 10% of patients with chronic kidney disease did not experience progressive kidney dysfunction, and 3% demonstrated improved kidney function. The study suggests that some cases of CKD may be reversible, providing hope for patients with this condition.

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Snapshot of dialysis: Who's getting treated at home?

Home-based dialysis treatments for kidney failure are gaining popularity worldwide, particularly in developing countries. The study found a significant increase in peritoneal dialysis patients in these regions, driven by lower costs and easier access to care.

JAMA commentary contends vitamin therapy can still reduce stroke

A recent JAMA commentary suggests vitamin B therapy can still lower stroke risk, particularly in patients with good renal function. However, the authors argue that clinical trials overlooked the role of vitamin B12 and renal failure, which can affect treatment efficacy.

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Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Racial inequalities exist for kids with kidney disease

Children of minority races are less likely to get kidney transplants before they need dialysis, and blacks with no health insurance face a higher risk of death while waiting for a transplant. Certain racial groups have lower rates of preemptive transplantation and are more likely to die than others

Research aims to prevent diabetic kidney failure

Researchers found that blocking arginase-2 activity prevents kidney failure in diabetic mice, offering a new therapeutic approach for diabetic nephropathy. The study also suggests that this inhibition may protect against albuminuria and cardiovascular problems.

Promising kidney drug fails in large clinical trial

A promising new drug to protect the kidneys has failed to benefit diabetes patients with kidney disease. The study, which enrolled 1,248 patients, found that sulodexide did not prevent kidney failure or reduce urinary protein excretion in patients with type 2 diabetes and kidney disease.

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Better ways to predict kidney disease risk for African Americans

New research reveals that APOL1 gene variants are a major risk factor for two forms of kidney disease, with African Americans having a significantly higher risk due to genetic predisposition. Early screening and treatment could potentially safeguard against kidney failure and early death for millions of individuals.

Lower contrast agent dose feasible in 320 row CT angiography

A recent study found that using a lower dose of contrast media (60 milliliters) in 320 detector row CT scans resulted in sufficient enhancement in over 96% of coronary segments. Larger patients with higher body mass indexes showed improved results, supporting the use of this lower dose protocol.

Protein in the urine spells kidney failure for African-Americans

A new study found that African Americans are more likely to develop kidney failure due to high levels of protein in the urine. The study analyzed data from 27,911 individuals and found that African Americans were four times more likely to develop kidney failure than whites.

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Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Aboriginal children less likely to receive kidney transplants

A Canadian study found Aboriginal children with kidney failure were less likely to receive a kidney transplant compared to white children. The study revealed that Aboriginal children had more immune-mediated kidney diseases and shorter waiting times on dialysis before transplantation, leading to lower rates of successful transplants.

Low carbohydrate diet may reverse kidney failure in people with diabetes

Researchers from Mount Sinai School of Medicine have found that a ketogenic diet may reverse impaired kidney function in people with Type 1 and Type 2 diabetes. The study, published in PLoS ONE, also identified previously unreported genes associated with diabetes-related kidney failure whose expression was reversed by the diet.

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.