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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

Caesarean sections for sale

A systematic review of 12 million births in 25 European countries found that private hospitals have a significantly higher caesarean section rate than public hospitals. Among low-risk first-time mothers, the increase in caesarean sections is attributed to non-medical factors such as local routines and financial incentives.

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Sexual minority individuals face higher cesarean risks

A new study from Columbia University's Mailman School of Public Health found that sexual minority individuals have a 7% higher odds of primary Cesarean birth compared to completely heterosexual participants. Disparities were especially pronounced when labor was induced, raising concerns about potential provider bias and unequal interve...

Pain during a C-section? New study challenges fears about general anesthesia

Research from the University of Pennsylvania School of Medicine finds that general anesthesia may be a suitable option for women undergoing C-sections, offering them more control over their delivery experience. The study analyzed 30 years' worth of data and found small differences in newborn health between babies born under general ane...

Study highlights risks of Caesarean births to future pregnancies

Researchers found that women who had Caesareans during advanced labor are eight times more likely to develop scars near or within the cervix, increasing the risk of premature births. The study also discovered that scars lower down the womb heal less well than those higher up.

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Severe maternal morbidity by race and ethnicity and birth mode

A cross-sectional study found elevated rates of severe maternal morbidity among marginalized racial and ethnic groups with planned cesarean births. The study emphasizes the need for interventions to improve quality of care and promote equity for this population.

Fatty liver in pregnancy may increase risk of preterm birth

Pregnant women with fatty liver disease are at an increased risk of giving birth prematurely, with a threefold higher risk compared to the general population. The study also found that women with fatty liver disease had a 63% higher risk of caesarean section.

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Better nurse staffing linked to fewer C-sections

Research suggests that labor and delivery units with adequate nurse staffing have lower cesarean birth rates and higher vaginal birth rates. Hospitals aligned with national standards for nurse staffing saw a 11% decrease in C-sections, indicating improved maternal outcomes.

Cesarean sections during labor appear associated with recurrent preterm birth and mid-trimester loss in subsequent pregnancies, and cervical damage may be an underlying mechanism, suggest the authors of a new Perspective article

A new study suggests that cesarean sections performed during labor are associated with an increased risk of recurrent preterm birth and mid-trimester loss in subsequent pregnancies. Cervical damage may be the underlying mechanism for these findings, highlighting a growing clinical concern.

Birth by C-section more than doubles odds of measles vaccine failure

A study by the University of Cambridge and Fudan University found that children born by C-section are up to 2.6 times more likely to fail their first measles vaccination compared to those born naturally. Two doses of the vaccine are necessary for robust protection against measles.

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Noninvasive bioelectronic treatment of postcesarean pain

A randomized clinical trial found that high-frequency electrical stimulation device reduced opioid use and prescribed opioids after cesarean delivery, suggesting a potential adjunct to decrease opioid use without compromising pain control.

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Single dose of azithromycin reduces maternal sepsis or death

A new study found that a single oral dose of azithromycin reduced the risk of maternal sepsis or death by 33% in women who delivered vaginally. The results showed lower rates of specific maternal infections and fewer hospital readmissions after delivery.

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Vaginal birth may be safer for pregnant women with kidney and liver transplants

A new study found that pregnant women with kidney or liver transplants can safely undergo trial of labor without increased risk to themselves or their babies. In fact, vaginal births resulted in improved outcomes for the baby without compromising maternal health. Conversely, cesarean births were associated with higher risks of complica...

Delivery method associated with pelvic floor disorders after childbirth

A decade-long study found that vaginal childbirth substantially increases the probability of developing pelvic floor disorders, such as urinary incontinence and uterine prolapse, later in life. The study also identified delivery modes associated with higher risk, including spontaneous vaginal delivery and operative vaginal delivery.

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Cesarean birth and brain development

Researchers found that vaginal births reduce cell death in brain regions, while C-sections lead to increased ultrasonic vocalizations and altered hormone expression at weaning. Cesarean-born mice also had greater body weight.

Inducing labor can help prevent cesarean births

A new national study has found that inducing labor in first-time mothers at 39 weeks can lower respiratory problems and potentially decrease cesarean rates and hypertension. Researchers suggest discussing induction with healthcare providers to inform the decision, as it may lead to significant changes in pregnancy management.

Indigenous group add to evidence tying cesarean birth to obesity

A Purdue University study of an indigenous group of Maya people reinforces the link between Cesarean births and obesity. The study found that mothers who have high BMI and had a cesarean are going to have the fattest children in the village, with differences in child sizes suggesting birth method plays a role in development.

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Cesarean birth appears associated with higher risk of obesity in children

A study published in JAMA Pediatrics suggests that children born by cesarean delivery are at a higher risk of becoming obese compared to those born via vaginal birth. The research found a 15% increase in the risk of obesity in children after cesarean birth, with siblings born vaginally being 64% more likely to be obese.

Yale researchers pinpoint reasons for dramatic rise in cesarean births

A recent Yale study examining the rise in cesarean births found that a significant proportion of the increase was due to slow progress in labor and fetal heart rate concerns. The researchers also discovered that suspected large infants, twin pregnancies, and preeclampsia contributed to the increase despite stable rates in the population.

Increased risks of planned cesarean births must be clearly conveyed

A study published in the Canadian Medical Association Journal found that women having a planned cesarean section are at a significantly higher risk of severe complications. The rate of severe complications was found to be 27.3 per 1000 deliveries for cesarean sections, compared to 9.0 per 1000 deliveries for vaginal deliveries.

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Elective cesarean sections

The Canadian Medical Association Journal explores the trend of elective cesarean sections, highlighting concerns about comparing vaginal birth to planned cesarean delivery. Hannah argues that only a comparison of planned vaginal and planned cesarean births can determine which carries greater risk to mother and baby.