bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Fiber Treatment and Humidity on the Mechanical, Fracture Toughness, Dynamic and Thermal Properties of Grewia Optiva Natural Fiber-Reinforced Epoxy Composites
Authors: Chauhan Sonika , Gope Prakash Chandra 
Published: December 2023

Abstract
The effects of relative humidity and fiber treatment on the mechanical properties of Grewia optiva natural fibers reinforced composites were studied. The results revealed that the fiber reinforcement composition with benzoyl peroxide (BP) treatment on NaOH-pretreated fiber shows optimum results at 90% relative humidity. The corresponding experimental results of the tensile strength (MPa), percentage elongation, flexural strength (MPa), impact strength (kJ/m2), and fracture toughness (MPa √m) were 260.895, 5.230, 52.572, 33.226, and 2.565, respectively. The surface response method yielded the optimum properties with a D value of 0.768 and properties variation between 1% and 6%. Thermogravimetry analysis shows a considerable amount of variation in the rate of degradation after the chemical treatment of fibers. A decrease in the damping factor and an increase in glass transition temperature due to chemical treatment show increased fiber-matrix interfacial bonding and cross-linking. Scanning electron microscopy images show that BP treatment is more suitable than NaOH treatment to remove the undesirable elements from the fiber surface and higher surface roughness to obtain better bonding between fiber and matrix. The fiber diameter reduction due to BP and NaOH treatment is about 57% and 52.62% as compared to untreated fiber.
Impaired Neuromotor Control During Gait in Concussed Adolescents—A Frequency Analysis
Authors: Jain Divya , Graci Valentina , Beam Megan E. , Master Christina L. , Prosser Laura A. , McDonald Catherine C. , Arbogast Kristy B. 
Published: December 2023

Disruptions in gait function are common after concussion in adolescents; however, the neuromotor control deficits driving these gait disruptions are not well known. Fifteen concussed (age mean [SD]): 17.4 [0.6], 13 females, days since injury: 26.3 [9.9]) and 17 uninjured (age: 18.0 [0.7], 10 females) adolescents completed 3 trials each of single-task gait and dual-task gait (DT). During DT, participants simultaneously walked while completing a serial subtraction task. Gait metrics and variability in instantaneous mean frequency in lower extremity muscles were captured by inertial sensors and surface electromyography, respectively. A 2-way analysis of covariance was used to compare gait metrics across groups and conditions. Functional principal components analysis was used to identify regions of variability in instantaneous mean frequency curves. Functional principal component scores were compared across groups using a Welch statistic. Both groups displayed worse performance on gait metrics during DT condition compared to single-task, with no differences between groups (P < .001). Concussed adolescents displayed significantly greater instantaneous mean frequency, indicated by functional principal component 1, in the tibialis anterior, biceps femoris, and semitendinosus (P < .05) during single-task and DT compared with uninjured adolescents. Our observations suggest that concussed adolescents display inefficient motor unit recruitment lasting longer than 2 weeks following injury, regardless of the addition of a secondary task.
Validation and Psychometric Properties of the German Version of the Adolescent Motor Competence Questionnaire
Authors: Schott Nadja , Hands Beth , McIntyre Fleur , Timler Amanda 
Published: December 2023

Introduction/Background: In 2016, the Adolescent Motor Competence Questionnaire (AMCQ) was developed in Australia. The AMCQ was developed to assess perceived motor competence in adolescents between the ages of 12 and 18 years. The 26 items represent four factors: participation in physical activity and sports, activities of daily living, public performance, and peer comparison. Aims/Objectives: Currently, no validated German-language self-report screening instrument exists for assessing perceived motor competence among adolescents. This study aimed to validate the German version of the AMCQ (AMCQ-GER). Methods/Approach: The German translation’s factor structure and psychometric properties were analyzed based on a community sample of 635 healthy children and adolescents between 10 and 18 years of age (12.9 ± 2.31 years, 321 boys and 312 girls) and 100 healthy young adults between 19 and 30 years of age (23.0 ± 2.92 years, 49 men and 51 women). The previously validated cutoff score of ≤83 out of 104 was used to group the sample into high and low motor competence. Results: The mean AMCQ-GER score was 84.9 (SD = 8.59), and 38.8% of the participants identified with low motor competence. The principle component analysis revealed clear evidence for a three-factorial structure comprising physical activity and sports, general clumsiness, and activities of daily living (with an explained variance of 29.2%). Reliability for all scales was excellent, with a McDonald’s ϖ of at least .70. The overall conclusion of the Rasch analysis supported the confirmatory factor analysis, although with an overall smaller number of items (18 instead of 26). The AMCQ-GER was positively correlated with age (.26**) and participation in organized club sports (.19**). It was negatively correlated with body mass index (−.23**) and school grade in physical activity (−.40**). Conclusions/Relevance: Our rigorous validation protocol has generated a remarkable reproduction of the AMCQ in German. These results suggest that the language and structure of the questionnaire is appropriate for German-speaking countries.
An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton
Authors: Petersson Andreas , Waight Tod , Kemp Anthony I.S. , Whitehouse Martin. J. , Valley John W. 
Published: December 2023

Abstract
Enabling the build-up of continental crust is a vital step in the stabilization of cratonic lithosphere. However, these initial crustal nuclei are commonly either destroyed by recycling or buried by younger rocks. In the Fennoscandian Shield, the oldest rocks are ca. 3.5 Ga, but ca. 3.7 Ga inherited and detrital zircons suggest the presence of an older, unexposed crustal substrate. We present U-Pb, O, and Hf isotope data from detrital zircons of three major Finnish rivers as well as zircon O and Hf isotope data from previously dated rocks of the Archean Suomujärvi and Pudasjärvi complexes, central Finland. Combined, these data indicate a previously unidentified ca. 3.75 Ga crustal nucleus in the Fennoscandian Shield. This adds to the growing number of Eoarchean nuclei recognized in Archean terranes around the globe, highlighting the importance of such nuclei in enabling the growth of continental crust. The isotope signatures of the Fennoscandian nucleus correlate with equivalent-aged rocks in Greenland, consistent with a common Eoarchean evolution for Fennoscandia and the North Atlantic craton.
Five-year cross-sectional study to determine the burden ofCandidaspp. infections of the urinary tract system among patients attending tertiary hospital in Northwestern Tanzania
Authors: Konje Eveline T , Kizenga Omary , Charco Noel J , Kibwana Upendo Ozeniel , Shango Nyanda , Tarimo Felix , Mushi Martha F 
Published: December 2023

ObjectiveUrinary tract infections (UTIs) stand as a prominent global health concern. This study entails a 5-year retrospective analysis, using a cross-sectional study design to examine microbiology laboratory data of individuals clinically diagnosed with UTIs at Bugando Medical Centre to gain insights into the prevalence and factors linked to candiduria.MethodologyData extracted were meticulously cleaned and coded in an MS Excel sheet, subsequently transferred to STATA V.15 for analysis. Binary logistic regression analysis was used to identify factors associated with candiduria. A probability value below 0.05 at a 95% CI was considered statistically significant.ResultsUrine samples for culture and sensitivity comprised 33.4% (20755) of the total biological samples (62335). The median age of the patients stood at 19 years. A slight majority were female, accounting for 52.8% (10051), and two-thirds sought treatment at outpatient departments (67.5%, 12843). Among patients with significant pathogenic growth, the prevalence of candiduria was 4.6% (221 out of 4772). Notably, inpatients exhibited a higher incidence of candiduria compared with outpatients, with rates of 9.4% (1882) versus 1.6% (2890), p value of 0.000. Non-albicansCandidaspp. (NAC) remained the most prevalent pathogen. Factors significantly associated with candiduria included being female (OR=1.7, 95% CI 1.3 to 2.3) and hospital admission (OR=6.6, 95% CI 4.7 to 9.2). In conclusion, candiduria affect 5 out of every 100 UTI-diagnosed patients, predominantly among females and those admitted to the hospital. Clinicians at tertiary hospitals should consider urinary candidiasis as a potential diagnosis for patients at risk who present with UTI-like symptoms.
REMAP Periop: a randomised, embedded, multifactorial adaptive platform trial protocol for perioperative medicine to determine the optimal enhanced recovery pathway components in complex abdominal surgery patients within a US healthcare system
Authors: Holder-Murray Jennifer , Esper Stephen A , Althans Alison R , Knight Joshua , Subramaniam Kathirvel , Derenzo Joseph , Ball Ryan , Beaman Shawn , Luke Charles , La Colla Luca , Schott Nicholas , Williams Brian , Lorenzi Elizabeth , Berry Lindsay R , Viele Kert , Berry Scott , Masters Miranda , Meister Katie A , Wilkinson Todd , Garrard William , Marroquin Oscar C , Mahajan Aman 
Published: December 2023

IntroductionImplementation of enhanced recovery pathways (ERPs) has resulted in improved patient-centred outcomes and decreased costs. However, there is a lack of high-level evidence for many ERP elements. We have designed a randomised, embedded, multifactorial, adaptive platform perioperative medicine (REMAP Periop) trial to evaluate the effectiveness of several perioperative therapies for patients undergoing complex abdominal surgery as part of an ERP. This trial will begin with two domains: postoperative nausea/vomiting (PONV) prophylaxis and regional/neuraxial analgesia. Patients enrolled in the trial will be randomised to arms within both domains, with the possibility of adding additional domains in the future.Methods and analysisIn the PONV domain, patients are randomised to optimal versus supraoptimal prophylactic regimens. In the regional/neuraxial domain, patients are randomised to one of five different single-injection techniques/combination of techniques. The primary study endpoint is hospital-free days at 30 days, with additional domain-specific secondary endpoints of PONV incidence and postoperative opioid consumption. The efficacy of an intervention arm within a given domain will be evaluated at regular interim analyses using Bayesian statistical analysis. At the beginning of the trial, participants will have an equal probability of being allocated to any given intervention within a domain (ie, simple 1:1 randomisation), with response adaptive randomisation guiding changes to allocation ratios after interim analyses when applicable based on prespecified statistical triggers. Triggers met at interim analysis may also result in intervention dropping.Ethics and disseminationThe core protocol and domain-specific appendices were approved by the University of Pittsburgh Institutional Review Board. A waiver of informed consent was obtained for this trial. Trial results will be announced to the public and healthcare providers once prespecified statistical triggers of interest are reached as described in the core protocol, and the most favourable interventions will then be implemented as a standardised institutional protocol.Trial registration numberNCT04606264.
Effectiveness of a culturally tailored diabetes education curriculum with real-time continuous glucose monitoring in a Latinx population with type 2 diabetes: the CUT-DM with CGM for Latinx randomised controlled trial study protocol
Authors: Ehrhardt Nicole , Cedeno Brian , Montour Laura , Sinclair Ka'imi , Ferguson Gary , Berberian Peter , Comstock Bryan , Wright Lorena 
Published: December 2023

IntroductionThe prevalence of type 2 diabetes (T2D) is increasing in the Latinx community. Despite telehealth and technology becoming more available, these resources are not reaching the Latinx population. Diabetes education is a cornerstone of treatment; however, access to culturally tailored content is a barrier to the Latinx population. Real-time continuous glucose monitoring (RT-CGM) is a patient-empowering tool that can improve glycaemic control, but it is not readily available for Latinx patients with T2D. We aim to evaluate a culturally tailored diabetes self-management education and support (DSMES) curriculum, using a team-based approach to improve glycaemic control, promote healthy behaviours and enhance patient access with the use of telehealth in Latinx individuals. The primary aim of the study is to evaluate the additive effectiveness of RT-CGM on glycaemia and behavioural changes among Latinx patients undergoing a culturally tailored DSMES. A sub aim of the study is to evaluate family members’ change in behaviours.MethodsWe propose a randomised controlled trial of blinded versus RT-CGM with 100 Latinx participants with T2D who will receive DSMES via telemedicine over 12 weeks (n=50 per group). The study will be conducted at a single large federally qualified health centre system. The control group will receive culturally tailored DSMES and blinded CGM. The intervention group will receive DSMES and RT-CGM. The DSMES is conducted by community health educators weekly over 12 weeks in Spanish or English, based on participant’s language preference. Patients in the RT-CGM group will have cyclical use with a goal of 50 days wear time. The primary outcomes are changes in haemoglobin A1c and CGM-derived metrics at 3 and 6 months. The secondary outcomes include participants’ self-management knowledge and behaviour and household members’ change in lifestyle.Ethics and disseminationThe study proposal was approved by the University of Washington ethics/institutional review board (IRB) Committee as minimal risk (IRB ID: STUDY00014396) and the Sea Mar IRB committee.Trial registration numberClinicalTrials.gov identifier:NCT05394844
Effect of mount location on the quantification of light intensity in myopia study
Authors: Wen Longbo , Liu Hong , Chen Zhao , Xu Qinglin , Hu Ziqi , Lan Weizhong , Yang Zhikuan 
Published: December 2023

PurposeTo investigate how the mounting location of wearable devices affects the measurement of light intensity.MethodsTwo commercially available wearable devices, HOBO and Clouclip, were used to compare the effects of different mount locations on light intensity measurement. We assessed the consistency of the measurements of the two devices by placing a HOBO and a Clouclip simultaneously in 26 different light environments and measuring the light intensity. To simulate the real-life usage scenarios of the two devices, we had 29 participants wear two HOBOs—one on the wrist and the other on the chest—along with a Clouclip on their spectacles for 1 day; meanwhile, the light intensity was measured and analysed.ResultsWhen under the same light environments, the light intensity measured by the Clouclip was 1.09 times higher than that by the HOBO, with an additional 82.62 units (r2=1.00, p<0.001). When simulating the real-life scenarios, the mean light intensity at the eye-level position was significantly lower than that at the chest position (189.13±665.78 lux vs 490.75±1684.29 lux, p<0.001) and the wrist position (189.13±665.78 lux vs 483.87±1605.50 lux, p<0.001). However, there was no significant difference in light intensity between the wrist and chest positions (483.87±1605.50 lux vs 490.75±1684.29 lux, p=1.00). Using a threshold of 1000 lux for outdoor exposure, the estimated light exposure at the eye-level position was significantly lower than that at the chest position (3.9% vs 7.8%, χ2=266.14, p<0.001) and the wrist position (3.9% vs 7.7%, χ2=254.25, p<0.001).ConclusionsOur findings revealed significant variations in light exposure among the wrist, chest and eye position. Therefore, caution must be exercised when comparing results obtained from different wearable devices.
Reducing violence and aggression: a quality improvement project for safety on an acute mental health ward
Authors: Kernaghan Katrina , Hurst Kay 
Published: December 2023

Violence and aggression (V&A) are identified as an issue on mental health wards that negatively affect staff, patients, care delivery and safety. This project took place on a male acute mental health ward where V&A are known to be an issue with an average of 21.3 incidences per month in the 6 months preceding the project.The aim was to use QI (Quality Improvement) methodology to reduce incidences of V&A by 20% over a 4-month period. A root cause analysis was completed with staff, previous QI projects and literature on interventions for V&A were reviewed. Two changes were introduced via PDSA (plan, do, study, act) cycles; first was a safewards bundle including a training package, weekly emails and noticeboard displays, the second was safety crosses displayed on the ward.There was a reduction in incidences of V&A across the project, mean weekly incidences reduced from 2.5 at baseline audit to 2.0 at the end of the project. This equates to a 20% reduction in V&A. The project did result in an increase of safewards interventions recorded and staff ratings of ward safety improved. There was a statistically significant correlation found between incidences of V&A and rates of restrictive practices.Further analysis of the 20% reduction did not find a special cause variation, so results may be due to a common cause variation rather than the QI interventions. Safety crosses were not found to have an impact on rates of V&A, it is likely these need to be more embedded into communication about V&A on the ward. Potential confounding patient variables such as illicit drug use and history of V&A as well as staffing should be recorded and monitored in future projects. Recommendations to enhance further change should include regular meetings with both staff and patients to support open communication about the topic.
Sustained decrease in latent safety threats through regular interprofessional in situ simulation training of neonatal emergencies
Authors: Mileder Lukas Peter , Schwaberger Bernhard , Baik-Schneditz Nariae , Ribitsch Mirjam , Pansy Jasmin , Raith Wolfgang , Rohrleitner Angelika , Mesaric Günter , Urlesberger Berndt 
Published: December 2023

Simulation training at trainees’ actual workplace offers benefits over traditional simulation-based team training. We prospectively investigated whether regular in situ simulation training of neonatal emergencies in an interprofessional and interdisciplinary team could be used to identify and rectify latent safety threats (LSTs).For this purpose, we conducted 1-day in situ simulation trainings at the Department of Gynaecology and Obstetrics, Feldbach, Austria, targeting anaesthesiologists, obstetricians, midwives, nurses and consultant paediatricians. Using published criteria for categorising LSTs, we collected LSTs, either recognised by trainers or training participants, categorised them qualitatively (medication,equipment,resource/system) and based on their potential for harm, discussed them with training participants, and reported them to hospital leadership.We conducted 13 trainings between June 2015 and April 2023, identifying 67 LSTs, most in the category ofequipment(42/67, 62.7%), followed byresource/system(14/67, 20.9%) andmedication(11/67, 16.4%). Sixty-one (91.0%) of the LSTs could be rectified by the next training. We observed a significant negative correlation between the number of delivered trainings and the frequency of identified LSTs (Pearson correlation coefficient r= –0,684, p=0.01).While we identified a higher number of LSTs in comparison to previously published studies, regular in situ simulation training of neonatal emergencies over a period of almost 8 years positively impacted patient safety, as the majority of LSTs was rectified by the next training. Even more important, the decrease in LSTs with the increasing number of delivered in situ simulation trainings underlines the sustained effect of this educational intervention.
Supervised machine learning model to predict mortality in patients undergoing venovenous extracorporeal membrane oxygenation from a nationwide multicentre registry
Authors: Lee Haeun , Song Myung Jin , Cho Young-Jae , Kim Dong Jung , Hong Sang-Bum , Jung Se Young , Lim Sung Yoon 
Published: December 2023

BackgroundExisting models have performed poorly when predicting mortality for patients undergoing venovenous extracorporeal membrane oxygenation (VV-ECMO). This study aimed to develop and validate a machine learning (ML)-based prediction model to predict 90-day mortality in patients undergoing VV-ECMO.MethodsThis study included 368 patients with acute respiratory failure undergoing VV-ECMO from 16 tertiary hospitals across South Korea between 2012 and 2015. The primary outcome was the 90-day mortality after ECMO initiation. The inputs included all available features (n=51) and those from the electronic health record (EHR) systems without preprocessing (n=40). The discriminatory strengths of ML models were evaluated in both internal and external validation sets. The models were compared with conventional models, such as respiratory ECMO survival prediction (RESP) and predicting death for severe acute respiratory distress syndrome on VV-ECMO (PRESERVE).ResultsExtreme gradient boosting (XGB) (areas under the receiver operating characteristic curve, AUROC 0.82, 95% CI (0.73 to 0.89)) and light gradient boosting (AUROC 0.81 (95% CI 0.71 to 0.88)) models achieved the highest performance using EHR’s and all other available features. The developed models had higher AUROCs (95% CI 0.76 to 0.82) than those of RESP (AUROC 0.66 (95% CI 0.56 to 0.76)) and PRESERVE (AUROC 0.71 (95% CI 0.61 to 0.81)). Additionally, we achieved an AUROC (0.75) for 90-day mortality in external validation in the case of the XGB model, which was higher than that of RESP (0.70) and PRESERVE (0.67) in the same validation dataset.ConclusionsML prediction models outperformed previous mortality risk models. This model may be used to identify patients who are unlikely to benefit from VV-ECMO therapy during patient selection.