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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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Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Scientists find new link between delirium and brain energy disruption

Researchers from Trinity College Dublin have discovered a new link between impaired brain energy metabolism and delirium, a disorienting disorder common in the elderly. Collectively, their research suggests that therapies focusing on brain energy metabolism may offer new routes to mitigating delirium.

Delirium may cause long term cognitive decline

Researchers found that patients who experienced delirium were more than twice as likely to show significant long-term cognitive decline. The study suggests that delirium may cause cognitive decline and is associated with increased mortality, hospital costs, and care duration.

Is delirium associated with long-term cognitive decline?

A combined analysis of 23 studies found that episodes of delirium are a risk factor for long-term cognitive decline. The research suggests that individuals who experience delirium may be more likely to develop dementia and other cognitive impairments over time.

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

Researchers work to better measure delirium severity in older patients

A study aimed to develop and validate tools for assessing delirium severity in older patients, which could lead to improved prevention and treatment. Researchers identified a set of items capturing the severity of delirium and developed a new instrument for quick and easy administration.

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SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Predicting vulnerability to Alzheimer's disease and delirium

Researchers at Beth Israel Deaconess Medical Center identified a gene variant linked to increased risk of postoperative delirium in older adults. The study suggests that anti-inflammatory treatments may be effective in preventing or mitigating delirium, particularly in patients with the APOE ?4 gene variant.

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Melatonin may not help prevent delirium after heart surgery

A recent study published in the Journal of the American Geriatric Society found that melatonin treatment did not reduce the risk of developing delirium following heart surgery. The study included 210 adults and showed a similar proportion of participants experienced severe episodes of delirium in both the melatonin and placebo groups.

Poor diet causes blindness in a young 'fussy eater'

A poor diet caused permanent vision loss in a 14-year-old patient, according to a case report published in Annals of Internal Medicine. Vitamin B12 deficiency and inadequate nutrient intake led to nutritional optic neuropathy, a rare condition that can cause irreversible blindness if left untreated.

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Physical and mental exercise lower chances for developing delirium after surgery

A study published in the Journal of the American Geriatrics Society found that older adults who engage in regular physical activity and mental stimulation before surgery have a lower risk of developing postoperative delirium. Participants who were physically active six to seven days a week had a 73% lower chance of experiencing deliriu...

Researchers develop tool to predict postoperative delirium severity

Researchers developed a tool to predict postoperative delirium severity, enabling better care for patients recovering from surgery. The study used data from 100 adults undergoing non-cardiac, non-neurological surgery, combining two previous tools to assess delirium intensity.

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Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Study reveals best tools for measuring severity of delirium

A study published in JAMA Internal Medicine reveals six high-quality instruments to measure delirium severity, enabling accurate assessment and improving clinical care. The findings have the potential to stratify risk, target treatment, and monitor outcomes for persons with delirium.

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Antipsychotics ineffective for treating ICU delirium

Critically ill patients are not benefiting from antipsychotic medications in treating delirium in ICUs, with no significant difference in duration or outcomes compared to placebo. The MIND USA study screened nearly 21,000 patients and found that these drugs bring risk without benefit.

Lighter sedation won't drop risk of postop delirium

A study of 200 patients undergoing hip fracture repair found that lighter sedation did not reduce the risk of postoperative delirium in severely ill patients. However, for healthier adults, deep sedation more than doubled the risk of delirium compared to light sedation.

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E. coli infection induces delirium in aging rats

Research reveals that E. coli infection can induce delirium in aging rats by reducing levels of brain-derived neurotrophic factor (BDNF), a protein essential for long-term memory formation. The study suggests that immune system activation, such as after surgery or infection, may contribute to cognitive decline in the elderly.

Caregivers can help assess whether older adults are dealing with delirium

A new study found that caregivers can use six proven tools to detect delirium on their own, taking just several minutes or less to complete. This enables caregivers to identify symptoms more easily than healthcare professionals and notify them sooner, potentially leading to earlier diagnoses and improved outcomes.

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Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

A Zika vaccine could virtually eliminate prenatal infections

A Zika vaccine has shown significant potential in eliminating prenatal infections, with a 75% effective vaccine covering 90% of females aged 9-49 years reducing incidence by at least 94%. The vaccine's effectiveness depends on demographic and fertility patterns, local Zika attack rates, and population susceptibility.

Sedative may prevent delirium in the ICU

Researchers found that a low dose of dexmedetomidine at night significantly reduced the incidence of delirium and prolonged free periods without delirium in ICU patients. Additionally, patients receiving dexmedetomidine were less likely to experience severe pain if they were in pain, but sleep quality showed no significant improvement.

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Older adults who are frail more likely to experience delirium after surgery

A new study suggests that older adults who are frail are twice as likely to experience delirium following elective surgery than those of an older age. The review found that a history of delirium, frailty, and cognitive impairment are the risk factors most strongly associated with developing postoperative delirium.

Hospital Elder Life Program (HELP) lowers 30-day readmission rates

The Hospital Elder Life Program (HELP) has been shown to lower 30-day readmission rates among older adults by reducing delirium and promoting social engagement. The study found that HELP units had 100 fewer readmissions compared to non-HELP units, which could translate to a national reduction of 40,000 cases annually.

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Difficulties diagnosing delirium in older adults after surgery

A recent study found that a significant number of older adults with delirium were not diagnosed by healthcare professionals. The researchers concluded that developing more objective screening tools could improve diagnosis accuracy. Understanding delirium is crucial to recognize and address the condition in older adults and caregivers.

Study: Ketamine doesn't affect delirium or pain after surgery

A recent study published in The Lancet found that ketamine does not prevent delirium and does not reduce post-surgical pain, contradicting widespread medical practices. However, higher doses of ketamine were associated with increased negative effects such as hallucinations and nightmares.

Drug believed to reduce postoperative pain and delirium does neither

A new study published in The Lancet found that ketamine does not reduce postoperative pain or prevent delirium, but may cause hallucinations and nightmares in older patients. Researchers evaluated 672 surgery patients and found no significant effect of ketamine on postoperative pain or delirium.

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Predicting long-term cognitive decline following delirium

Researchers have discovered a way to predict long-term cognitive decline after postoperative delirium by analyzing pre-surgery cognitive function in patients. Those with higher cognitive scores before delirium are less likely to experience cognitive decline afterwards.

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IU Center for Aging Research develops novel ICU delirium severity assessment tool

Researchers at IU Center for Aging Research have developed a novel easy-to-administer tool to score and track delirium severity in the ICU, enabling clinicians to make better decisions about the brain health of ICU patients. The Confusion Assessment Method for the Intensive Care Unit 7 (CAM-ICU-7) scores delirium on a scale of 0 to 7 a...

Delirium could accelerate dementia-related mental decline

A new study published in JAMA Psychiatry found that delirium can accelerate dementia-related cognitive decline, with severe changes in memory observed among those with both conditions. The research highlights the importance of recognizing delirium in hospital settings to prevent brain injury and potentially delay or reduce dementia.

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Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Delirium an insidious, deadly threat to nursing home residents

Delirium is an often-undiagnosed syndrome affecting nearly 18% of long-term care residents, characterized by disorganized thinking and attention deficits. Prevention strategies include avoiding non-essential surgery, maintaining hydration, and minimizing medication exposure.

Sedative may prevent delirium after an operation

A study of 700 patients aged 65 or older found that sedating them with a mild sedative after surgery reduced the risk of post-operative delirium by nearly two-thirds. The condition, which can cause confusion and hallucinations, affects up to one in three people who have major operations.

Trajectory of functional recovery after postoperative delirium

A study published in Annals of Surgery found that postoperative delirium leads to lesser functional recovery in older adults. The study, which followed participants for 18 months, showed that those who developed delirium experienced more significant decline in physical function after surgery.

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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.

Cognitive reserve may help protect against delirium

A new study suggests that higher late-life cognitive reserve is linked to lower incidence and severity of delirium in older surgical patients. Participating in cognitively stimulating activities such as reading, singing, or playing computer games may help protect against delirium.