Articles tagged with Measurement Systems
A blood test measuring phosphorylated tau 217 (P-tau217) can estimate an individual's risk of developing cognitive impairment over 2, 5, and 10 years. Higher P-tau217 levels are associated with increased risk of progression to cognitive impairment in cognitively unimpaired older adults.
A team at TU Wien used a highly precise quartz crystal microbalance to study the impact of high-energy ion beams on surfaces. The results revealed that the measurement process not only affected the material under investigation but also the measuring instrument itself.
Researchers at Yokohama National University have developed a new fiber-optic sensing method that uses electrical-domain interference to detect strain and displacement. The approach exploits relative modal delays in polymer optical fibers, resulting in measurable dips in the electrical-frequency domain.
A new study published in JAMA Network Open found that muscular strength is associated with lower mortality rates in women aged 63-99. Controlling for physical activity and other factors, researchers discovered a significant link between muscle mass and reduced mortality risk.
Researchers at Institute of Science Tokyo developed a neural-network-based 3D imaging technique that can precisely measure moving objects. The new method reconstructs high-resolution 3D shapes using only three projection patterns, enabling dynamic 3D measurement across various applications.
A faulty cybersecurity software update led to a widespread technology outage at US hospitals, resulting in disruptions to patient-facing network services. Internet measurement techniques may be useful for surveillance and study of critical digital health care infrastructure.
Researchers developed a dual-laser Brillouin optical correlation-domain reflectometry system that measures strain and temperature along an optical fiber without costly GHz equipment. The setup recorded Brillouin gain spectra at only about 200 MHz, over 50 times lower than the usual 11 GHz band.
Keck Hospital of USC has received its 10th consecutive 'A' Leapfrog safety grade, recognizing the hospital's commitment to preventing errors and accidents. The Leapfrog Group assigns a letter grade based on over 30 performance measures reflecting the systems hospitals have in place for patient safety.
Researchers at Graz University of Technology developed a holistic solution for structural monitoring, combining various technologies to provide usable findings for service life forecasts and proactive maintenance planning.
Researchers at UCL developed a new scoring system, CAR, to identify patients with narrowed carotid arteries who can be effectively treated with optimised medical therapy. The study found low rates of recurrent strokes and heart attacks among patients treated with medication alone.
Researchers developed a portable system using AI to spot cognitive impairment by measuring subtle differences in motor function. The device accurately identified 83% of participants with mild cognitive impairment (MCI), offering potential for early intervention and improved outcomes.
A new, inexpensive measurement device can measure both pressure and acceleration using a single design and method, saving costs and simplifying manufacturing. This technology has potential applications in medical care, disaster mitigation, landslide alerts, and heavy-machinery maintenance.
A new study reveals striking similarities and critical gaps in how three major countries measure healthcare quality, with an emphasis on family medicine and process-focused metrics. The findings underscore the need for a more balanced approach that includes all aspects of medical care, from infrastructure to patient outcomes.
A retrospective cohort study of 44,000 individuals found associations between baseline fasting glucose levels, age, sex, and body mass index with the development of diabetes. The study highlights individual variation in diabetes risk according to commonly measured clinical variables, suggesting potential for targeted interventions.
This study investigated the feasibility of electroacupuncture-assisted ribavirin dosing in patients with long COVID, using Voll's electropuncture diagnostics. The results demonstrated that EAV can identify meridians with decreased electrodermal activity at acupuncture points, followed by medicament testing to measure daily doses.
A new monitoring system uses 'virtual sensing' to accurately estimate CO₂ and NOx emissions based on driving behavior. The system provides personalized environmental impact assessments, empowering drivers to manage their emissions.
The 13th ITER International School (IIS2024) brings together 200 young researchers and engineers to advance nuclear fusion research. The school's theme is 'Magnetic fusion diagnostics and data science,' focusing on measurement and analysis for achieving fusion energy demonstration in the ITER project.
A cohort study found that long-term exposure to wildfire and fine particulate matter was associated with dementia diagnoses. The study suggests that reducing wildfire PM2.5 exposure could decrease dementia diagnoses and address health disparities.
Keck Hospital of USC has received an 'A' Hospital Safety Grade from The Leapfrog Group for the ninth consecutive year. The hospital's dedication to maintaining high standards of quality and safety is reflected in its ability to meet or exceed performance benchmarks.
Scientists at the University of Tokyo have developed a new system that increases the measurement rate of Raman spectroscopy, a technique used to identify molecules. This improvement enables faster identification of molecules and cells, with applications in biomedical diagnostics and material analytics.
Researchers at Tohoku University have successfully applied quantum squeezing to enhance the accuracy of measurements in complex quantum systems. By reducing uncertainty in one aspect while increasing it in another, they can measure variables like position and momentum with greater precision.
The world's first combined whole eye and face transplant has demonstrated allograft survival, including rejection-free graft survival. The transplanted eye has maintained normal pressure, good blood flow, and some remaining structure and functions in the retina. Researchers are now focused on understanding how to restore sight.
Researchers from Zhejiang University have developed a hybrid laser direct writing technique that enables the creation of functional copper interconnects and carbon-based sensors within a single integrated system. The process allows for real-time temperature monitoring over extended periods, ensuring optimal performance and reliability.
Researchers found that vision impairments contribute significantly to the development of dementia in older adults, with a population attributable fraction ranging from 4.9% to 19.0%. The study highlights the importance of incorporating multiple objective measures of vision impairment into assessments to capture its impact on dementia.
Researchers use high-energy synchrotron X-ray to study spatter dynamics during LPBF, revealing links between vapour depression shape and spatter interactions. The study proposes strategies to minimize defects, improving the surface quality of LPBF-manufactured parts.
A 1-year study found that continuous outdoor exposure with high sunlight intensity was associated with less myopic shift in children. Effective outdoor exposure patterns should be prioritized to prevent myopia in children.
Discrepancies in e-cigarette products containing nicotine analogues may lead to uncertainty about user exposure, hindering risk assessment for clinical and regulatory purposes. The largely unknown acute and chronic inhalation hazards and addictive potential of nicotine analogues pose a significant concern.
Researchers found significant variation in surgical outcomes within each hospital star rating group, despite CMS star ratings being associated with mortality, complications, and readmissions. This study emphasizes the need for continued improvement of publicly reported hospital grade measures to accurately reflect surgical quality.
Research highlights socioecologic factors contributing to racial disparities in breast cancer prognostic scores, emphasizing the impact of structural racism on health outcomes. Additional research is needed to better understand the influence of social determinants on breast cancer biology among disadvantaged communities.
A recent study published in JAMA Pediatrics found a strong negative association between screen time and parent-child talk among children aged 12-36 months. Children exposed to more screen time had fewer adult words, vocalizations, and back-and-forth interactions with parents.
A multicenter randomized clinical vignette survey study found that AI models, when systematically biased, reduced diagnostic accuracy. The study involved hospitalist physicians, nurse practitioners, and physician assistants from 13 states.
Researchers at ETH Zurich have developed a new technology using satellite images and artificial intelligence to determine snow depth with high accuracy. The system can provide detailed snow distribution patterns, even for areas without existing measurements, and offers an indication of uncertainty.
Researchers found that green spaces alleviate extreme heat's negative impacts on human health, while densely packed buildings increase mortality risk. Urban design strategies incorporating different types of greenery are recommended to mitigate heatwave-associated mortality.
A meta-analysis of 40 studies involving 310,000 youths found low treatment rates for depression and anxiety in children and adolescents. Targeted interventions to improve psychiatric disorder treatment rates are urgently required.
The USPSTF recommends screening for hypertensive disorders of pregnancy to reduce maternal morbidity and mortality. The rate of hypertensive disorders has been increasing, from approximately 500 cases per 10,000 deliveries in 1993 to 1,021 cases per 10,000 deliveries in 2016-2017.
A new study using eye-tracking technology found that it can accurately predict autism diagnoses, comparable to expert clinical diagnosis. The research suggests potential for earlier diagnosis and assessment of autism in routine practice.
Researchers used objective eye-tracking technology to quantify social visual engagement in young children, revealing its potential as a tool for autism diagnosis. The findings suggest that these measurements can help identify individual levels of social disability and provide insights into verbal and nonverbal abilities.
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.
Researchers developed a colorimetric method to detect volatile organic compounds at low levels using a printable glass-based detector. Additionally, strategies are outlined to overcome the single-molecule concentration barrier in fluorescence detection, enabling observations in high-concentration environments. An electrochemical test f...
A study of 1,979 women found that healthy sleep prior to and during the COVID-19 pandemic may protect against post-COVID condition. Researchers suggest interventions on sleep health could prevent or alleviate long COVID symptoms.
A deep learning system accurately classifies autism spectrum disorder and predicts symptom severity based on behavioral responses to social cues. The method offers a digital measurement of joint attention, but further validation is needed.
A study of 2,165 Dutch adolescents suggests no difference in global brain volume between those reporting gender diversity and those not. However, a correlation was found with specific brain features in the inferior temporal gyrus among males assigned at birth.
A study of 5,000 patients with breast cancer found that women from disadvantaged neighborhoods had shorter breast cancer-specific survival rates compared to those from advantaged areas. The findings suggest potential unaccounted mechanisms, including social determinants of health and access to care.
The NSF Convergence Accelerator program invests $11M in solutions for vulnerable communities, with UMBC's Lauren Clay awarded $624K to develop the Food Index for Resilience. This index will measure food system functioning in communities and support disaster response and recovery.
Researchers created a magneto-impedance sensor magnetometer that measures Earth's geomagnetic field fluctuations, enabling real-time monitoring of space weather and advancement of space research. The device is lightweight, power-efficient, and low-cost, making it suitable for constructing multi-point observation networks.
The new monochromator optics increase photon flux in the tender X-ray range by a factor of 100, allowing highly sensitive spectromicroscopic measurements with high resolutions. This enables data collection on nanoscale materials, such as catalytically active nanoparticles and modern microchip structures, for the first time.
A new resilience sensing system can identify areas in danger of collapse and measure the success of conservation efforts. Global average resilience has declined over the last 20 years, with regions such as the Amazon rainforest showing signs of loss of resilience.
A recent study of 7,600 adults found that higher levels of light- and moderate-to-vigorous intensity physical activity were associated with a reduced risk of stroke. Conversely, greater sedentary time was linked to an increased risk of stroke.
Researchers found no widespread systematic measurement bias in the Autism Diagnostic Observation Schedule (ADOS-2) across race and sex. However, the study suggests potential underdetection of autism in certain groups, warranting further research to improve diagnosis accuracy.
Researchers at Samsung have developed a novel approach to inspect critical dimensions of semiconductor devices, improving speed and resolution. The new 'line-scan hyperspectral imaging' (LHSI) technique offers faster measurements with high spatial resolution, outperforming existing methods.
A novel solution uses ultrasonic technology to detect critical form of lubrication between a railway wheel and the track, reducing maintenance costs and improving safety. The automated vehicle-mounted system will communicate presence and absence of lubrication to Network Rail.
Researchers validated at-home visual acuity tests to measure eye health in telehealth settings, improving accessibility and reducing reliance on in-office appointments. The study found that these home tests were comparable to in-office measurements, demonstrating their potential as a reliable tool for remote eye exams.
Researchers from Regenstrief Institute found that Patient Reported Outcomes Measurement Information Systems (PROMIS) scales for depression can accurately diagnose and track patient symptoms. The study showed similar accuracy to the widely adopted PHQ-9 scale, supporting PROMIS as a viable screening option.
A study found that mRNA vaccine recipients with prior SARS-CoV-2 infection experienced more severe symptoms after vaccination. The study suggests vaccine type may influence symptom severity in individuals with a history of COVID-19 infection.
A new method of distance measurement has been developed by researchers at Paderborn University, achieving precision 10,000 times better than established methods. This breakthrough could significantly improve applications such as LIDAR and GPS.
Researchers at NIST have created an optical system that can measure the flow of extremely small amounts of liquids with high accuracy. The technique relies on a laser interacting with light-sensitive molecules in a liquid flowing through a microchannel, allowing for precise control of flow rates as low as 2 nanoliters per minute.
Researchers developed a system that automatically separates audio from different speakers in a crowded environment and compares these voices to the listener's brainwaves. This allows the voice of the speaker who is the center of the listener's attention to sound louder.
A new system of measurement called CSAS aims to comprehensively assess community sustainability by addressing three pillars: economic vitality, environmental quality and social equity. The researchers propose a multi-level approach to measure sustainability, starting from neighborhoods and moving up to regions and greater levels.
PROMIS is a patient-reported outcomes measurement system that evaluates physical, psychological, and social well-being to provide information on the subjective patient experience. Lupus patients endorse PROMIS assessments as reflecting their experience with lupus, highlighting its potential utility in validating symptoms, tracking dise...
Researchers found that mind wandering occurs in 70% of drivers during a simulation, causing distinctive brain activity. Drivers are often unaware of their mental drift, which can impair reaction time and increase road traffic crashes. The study suggests that autonomous transport systems may be an option to improve safety.