Articles tagged with Systems Analysis
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.
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.
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.
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.
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.
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.
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.
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.
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.
Researchers at Pusan National University have developed a new framework for predicting vessel turnaround time by leveraging queuing-based operation indicators. This dynamic approach captures time-varying fluctuations in port operations, offering a more accurate and actionable forecast.
Researchers at Texas A&M University found that websites use browser fingerprinting to track people across browser sessions and sites. Even users who opt out of tracking under privacy laws may still be silently tracked through fingerprinting.
Skia identifies and decodes shadow branches, storing them in a memory area to alleviate bottlenecks and improve throughput. The technique can lead to quicker performance and less power consumption for data centers.
Researchers from East China Normal University developed an AI-driven system to analyze classroom videos, revealing teacher-centered instruction prevails in primary and secondary schools. The study also found that older students engage less in critical discussions and more in structured questions.
A systematic review and network meta-analysis of 601 trials revealed that SGLT2 inhibitors were more cardioprotective in older adults, while GLP-1 receptor agonists offered greater benefits to younger patients. These findings suggest personalized treatment approaches for type 2 diabetes based on age and sex.
The study identifies 14 key impacts of wind energy on various systems, including environmental, socio-economic, and political-legal aspects. Researchers found that public acceptance is a major challenge for wind turbines, but also discovered benefits such as the phasing out of fossil-based energy and job creation opportunities.
Researchers studied heart failure patients in zero gravity to assess the impact on left ventricular filling pressures. They found that external constraint affects cardiac hemodynamics, leading to changes in blood pressure and potential new treatment avenues for heart failure management.
A systematic review and network meta-analysis found spinal cord stimulation therapies to be more effective in reducing chronic back and leg pain. These findings suggest spinal cord stimulation as a valuable option for chronic pain management.
A systematic review and meta-analysis found nurse burnout to be associated with lower health care quality and safety, as well as lower patient satisfaction. The association was consistent across various nurse and study characteristics.
Aerobic physical activity was associated with modest short-term and long-term reductions of depression among adults with cancer. The study suggests that aerobic exercise may be an effective strategy for managing depression in cancer patients.
Researchers developed an algorithm to analyze peptides in infected wounds, revealing unique biomarkers that enable earlier and more accurate diagnoses. This breakthrough method uses mass spectrometry and machine learning to diagnose infections in just a few minutes.
A systematic review found that universal free school meals were associated with increased meal participation and no significant improvements in attendance. The study also noted a decrease in obesity prevalence and suspension rates, although the evidence for these findings was moderate to low certainty.
The study found that massage therapy has moderate-certainty evidence for some conditions but rare conclusive evidence of its superiority over other treatments. The review highlights the need for more research in this area.
Researchers analyze degrowth scenarios to reduce emissions, highlighting the need for lower energy demand and technological advancements. The study suggests that fast emissions reductions are possible even with reduced or zero economic growth, but also raises concerns about sociocultural feasibility.
A systematic review of 41 randomized clinical trials suggests that late-stage cancer incidence can be a suitable alternative end point to cancer-specific mortality in some cancer types, but not others. This finding has implications for multicancer screening tests and may change the way these trials are designed.
A systematic review and meta-analysis found that antibiotic prophylaxis is associated with a reduced risk of infective endocarditis in high-risk individuals following invasive dental procedures. However, its effectiveness in moderate-risk individuals is unclear.
Integrating magnetic resonance imaging (MRI) in prostate cancer screening pathways is associated with reduced unnecessary biopsies and overdiagnosis. MRI maintains clinically significant prostate cancer detection, reducing harm from overtreatment.
A systematic review and meta-analysis found a strong association between alcohol use disorder and suicide mortality across genders. The study highlights the importance of addressing alcohol use disorder as part of comprehensive suicide prevention strategies.
A new study published in Socio-Economic Review found that introducing competition between upper secondary schools in Sweden required nearly a decade of reorganisation, training, and changes in admission rules. The study highlights the significant costs and disruption involved in establishing competition, contrary to previous assumptions.
A systematic review and meta-analysis of 104 studies with 341,000 participants found that physical activity was associated with better late-life cognition, although the association was weak. The findings suggest that even a weak link between physical activity and cognitive decline is still important from a population health perspective.
A systematic review of 13 randomized clinical trials found that app-based interventions are effective in treating moderate to severe depression. The study's findings support the use of mobile apps as a practical tool for clinical practice.
A new system using satellite data improves crop area and yield estimates, providing critical information for food security and sustainability planning. The WorldCereal project offers a cloud-based platform with diverse operational models to cater to various user communities.
A systematic review and meta-analysis found that rehabilitation interventions significantly improve functional exercise capacity, dyspnea, and quality of life in adults with post-COVID-19 condition. The certainty of evidence for these outcomes was moderate to high.
A team of researchers has made breakthroughs in harnessing low-grade heat sources for efficient energy conversion. They developed a highly efficient Thermally Regenerative Electrochemical Cycle (TREC) system that converts small temperature differences into usable energy.
The new tool, SnorCall, analyzes unsolicited calls to shed light on robocall trends and types of scams. It extracted information from over 232,000 robocalls, including phone numbers used in scams, helping regulators and law enforcement take action.
A study published in JAMA Network Open reveals racial disparities in food insecurity among low-income households without Supplemental Nutrition Assistance Program (SNAP) access. The research highlights the importance of improving SNAP access to address these disparities.
A systematic review found that cancer survivors experience a higher risk of psychological symptoms compared to healthy siblings and controls. Psycho-oncological intervention is recommended for early detection and prevention.
Interventions with wearable activity trackers increased physical activity levels, reduced sedentary behavior, and improved physical functioning in hospitalized adults. This systematic review and meta-analysis of 15 studies and 1,900 participants supports the use of wearable technology to enhance patient outcomes.
Researchers developed an AI model to estimate best-corrected visual acuity from fundus photographs in patients with diabetic macular edema, achieving accuracy within one to two lines on a standard chart. The study's findings support the potential of AI in clinical settings, with opportunities for further improvement.
A new research effort aims to provide decision-makers with better information to understand supply chain risks, vulnerabilities, and resilience through visual analytics. The project will create a comprehensive computational and visual analytic environment to identify patterns and interdependencies in supply-demand systems.
A new analysis by Duke University researchers finds that 17% of US households face growing water affordability challenges, affecting nearly half the population. The study recommends solutions such as utility customer assistance programs and policy reforms to address income inequality and infrastructure costs.
The study found that COVID-19 vaccine-induced immunity rapidly declines after primary vaccination and booster doses, leading to a decrease in protection against Omicron and Delta infections. The results highlight the need for targeted vaccination strategies to combat the evolving SARS-CoV-2 virus.
Partners of colorectal cancer survivors experience long-term financial toxicity leading to worse health-related quality of life. Multilevel interventions are needed to address individual and systemic factors affecting both patients and their partners.
A systematic review and meta-analysis of 4.8 million participants found no significant association between daily low or moderate alcohol intake and all-cause mortality risk. However, increased risk was evident at higher consumption levels, starting at lower levels for women than men.
A new analysis of innovative approaches to project economic impacts along climate mitigation pathways reveals near-term emissions reductions are globally economically optimal, with central estimates for 'optimal warming' around 1.8-1.9°C by 2100. The study estimates that one euro invested in climate solutions saves the world about 1.5 ...
A new study found that stroke patients experience a daily rhythm in cerebral blood flow regulation, with greater regulation during afternoon hours compared to morning and night times. This discovery may improve health outcomes by guiding daily activity and personal care during stroke recovery.
A systematic review and meta-analysis of 52 studies found that antimicrobial stewardship programs effectively reduced antibiotic consumption in hospitals and non-hospital settings. Further research is needed to develop strategies for reducing antibiotic use in low- and middle-income countries.
A new study found that women with pre-pregnancy migraine had greater risks of preterm delivery, gestational hypertension, and preeclampsia. Migraine with aura was associated with a higher risk of preeclampsia than without aura.
A deep learning model distinguishes colon carcinoma from acute diverticulitis in CT images, improving diagnostic performance and reducing false-negative and false-positive findings. The model's sensitivity and specificity were significantly improved, supporting radiologists in patient care.
The COVID-19 pandemic led to a decline in international migration in high-income countries, with varying degrees of impact across nations. The study found that travel restrictions, mobility restrictions, and stay-at-home requirements were associated with immigration declines, while work and school closures had no effect.
A study finds that increasing health insurance coverage explains 63% of increased healthcare expenditure and boosts medical patent registrations by 57%. Health insurance expansion also increases life expectancy by 1.2 years due to stimulation of medical progress.
A recent study found that transfusion of COVID-19 convalescent plasma is associated with reduced mortality in immunocompromised patients. The research suggests this therapy may be beneficial for these patients, who are at high risk of severe illness and death from COVID-19.
Researchers developed a novel way to store energy by transporting sand into abandoned underground mines, creating a long-term energy storage solution. The technology generates electricity when the price is high and stores it when cheap, making it an effective and cost-efficient alternative to traditional batteries.
A new digital twin of laser-directed energy deposition repair technology has been developed to improve industrial sustainability. The system automatically determines optimum forming conditions, reducing metal powder waste and increasing the effectiveness of the repair process.
A team led by Professor Thorsten Hoffmann uses small, portable observation drones equipped with miniaturized sensors to analyze volcanic gases and predict eruptions. The ratio of carbon dioxide levels to sulfur dioxide can reveal the likelihood of an impending eruption.
A systematic review and meta-analysis of 53 studies found that obesity is not a universal phenotype in children with type 2 diabetes. Further studies are needed to understand the mechanisms driving this condition in children with type 2 diabetes.
Screen time increased by 52% during the pandemic, with significant increases for individuals ages 12-18 and handheld devices/personal computers.
A recent study found worsening disparities in cancer drug trial participant diversity from 2000 to 2018, highlighting systemic biases and unequal access to new treatments. The findings underscore the need for increased diversity in phase 1 clinical trials to ensure equitable access to life-saving treatments.
Researchers analyzed COVID-19 conspiracy theories on Twitter, finding that some peaked at the beginning of the pandemic while others remained persistent throughout. The study suggests that risk perceptions and lack of information from governments and experts contributed to the persistence of these theories.
A recent study published in Engineering Construction & Architectural Management identified the main obstacles preventing digital transformation in the engineering and construction industry. The three main problems are a lack of laws and regulations, a lack of support and leadership, and a lack of resources and professionals.
The study found that imbalances in the host immune system facilitate persistent or severe forms of COVID-19. Low levels of dendritic cells, which report information about invaders to T cells, were associated with long-term infection and disease severity.
Researchers analyzed COVID-19 lockdown strategies in Germany, Israel, and the US to determine optimal policy changes based on vaccine development timelines. Lockdowns were stricter before vaccine approval and continued to intensify after approval until vaccination reached a sufficient percentage.
A systematic review and meta-analysis of 141 articles found the COVID-19 incubation period decreased from Alpha (5 days) to Omicron (3.42 days), highlighting the need for adjusted isolation periods
A systematic review and meta-analysis of 26 studies involving over 100,000 women found that mothers with a family history of psychiatric disorders are at almost twice the risk of developing postpartum depression. The findings suggest that family history may be a significant risk factor for postpartum depression.
A new study suggests that using propane as a refrigerant in air conditioners could significantly reduce the global temperature increase from space cooling, with a potential decrease of up to 0.09°C by the end of the century. This is due to propane's low global warming potential score of less than 1.
A systematic review and meta-analysis found tinnitus prevalence to be over 740 million adults worldwide, with 120 million reporting it as a significant issue.
A systematic review and meta-analysis found no significant differences in treatment success between nonoperative and operative management for acute uncomplicated appendicitis. However, the nonoperative group experienced significantly longer hospital stays and higher recurrence rates.
Researchers argue that the Glasgow Leaders' Declaration on Forests and Land Use is too vague regarding gross vs net deforestation. This distinction matters for carbon dioxide emissions. Stopping gross deforestation would significantly reduce emissions.
A systematic review and meta-analysis of 81 studies found that COVID-19 patients with cancer had a higher risk of death compared to those without cancer. Younger age, lung, and hematologic cancers were identified as risk factors for poor outcomes from COVID-19
A systematic review and meta-analysis of 26 studies found music interventions to be associated with clinically meaningful improvements in health-related quality of life. The study suggests that music-making and listening may have a positive impact on overall well-being, particularly for individuals with health conditions.