bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Visual Augmented Feedback on Walking Speed Perception in Immersive Virtual Reality
Authors: Wilson Elizabeth B. , Canete Santiago , Wright W. Geoffrey , Jacobs Daniel A. 
Published: July 2023

Abstract
In virtual reality (VR), established perception–action relationships break down because of conflicting and ambiguous sensorimotor inputs, inducing walking velocity underestimations. Here, we explore the effects of realigning perceptual sensory experiences with physical movements via augmented feedback on the estimation of virtual speed. We hypothesized that providing feedback about speed would lead to concurrent perceptual improvements and that these alterations would persist once the speedometer was removed. Ten young adults used immersive VR to view a virtual hallway translating at a series of fixed speeds. Participants were tasked with matching their walking speed on a self-paced treadmill to the optic flow in the environment. Information regarding walking speed accuracy was provided during augmented feedback trials via a real-time speedometer. We measured resulting walking velocity errors, as well as kinematic gait parameters. We found that the concordance between the virtual environment and gait speeds was higher when augmented feedback was provided during the trial. Furthermore, we observed retention effects beyond the intervention period via demonstrated smaller errors in speed perception accuracy and stronger concordance between perceived and actual speeds. Together, these results highlight a potential role for augmented feedback in guiding gait strategies that deviate away from predefined internal models of locomotion.
Unannihilable – Zygmunt Bauman as Analyst and Ambassador of Ambivalence
Authors: Jacobsen Michael Hviid 
Published: July 2023

In Zygmunt Bauman’s work, ambivalence was a topic that recurred explicitly several times in his analyses of modernity and later liquid modernity. This was particularly evident in his book Modernity and Ambivalence (1991). But ambivalence also appears as an underlying theme in later books on life in liquid-modern society. Moreover, Bauman’s sociological perspective itself oozes ambivalence, and many of the topics he explored and embraced throughout his career – such as freedom, morality, immortality and utopia – are themselves fundamental expressions of ambivalence. In addition, Bauman always insisted that the world is not fixed once and for all, but that humans can challenge and change it, and in this way ambivalence is not an ailment to be cured but rather a fact to be accepted. This article explores the theme and leitmotif of ambivalence in the writings of Bauman. The article seeks to provide a concise presentation and discussion of Bauman’s continuous engagement with ambivalence in order to show that sociology perhaps ought to take the topic of ambivalence more seriously than is currently the case.
Uncertainty Calibration of Passive Microwave Brightness Temperatures Predicted by Bayesian Deep Learning Models
Authors: Ortiz Pedro , Casas Eleanor , Orescanin Marko , Powell Scott W. , Petkovic Veljko , Hall Micky 
Published: July 2023

Abstract
Visible and infrared radiance products of geostationary orbiting platforms provide virtually continuous observations of Earth. In contrast, low-Earth orbiters observe passive microwave (PMW) radiances at any location much less frequently. Prior literature demonstrates the ability of a machine learning (ML) approach to build a link between these two complementary radiance spectra by predicting PMW observations using infrared and visible products collected from geostationary instruments, which could potentially deliver a highly desirable synthetic PMW product with nearly continuous spatiotemporal coverage. However, current ML models lack the ability to provide a measure of uncertainty of such a product, significantly limiting its applications. In this work, Bayesian deep learning is employed to generate synthetic Global Precipitation Measurement (GPM) Microwave Imager (GMI) data from Advanced Baseline Imager (ABI) observations with attached uncertainties over the ocean. The study first uses deterministic residual networks (ResNets) to generate synthetic GMI brightness temperatures with as little mean absolute error as 1.72 K at the ABI spatiotemporal resolution. Then, for the same task, we use three Bayesian ResNet models to produce a comparable amount of error while providing previously unavailable predictive variance (i.e., uncertainty) for each synthetic data point. We find that the Flipout configuration provides the most robust calibration between uncertainty and error across GMI frequencies, and then demonstrate how this additional information is useful for discarding high-error synthetic data points prior to use by downstream applications.
Impacts of April Stratosphere–Troposphere Coupling on the South Asian Premonsoon Circulation
Authors: Zhang Chengyang , Tian Wenshou , Zhang Jiankai , Zhang Tuantuan , Yu Wei , Yang Song , Wang Tao 
Published: July 2023

Abstract
The premonsoon circulation over South Asia in May shows remarkable interannual variations, and it can modulate the onset of the Asian summer monsoon. The present study derives two dominant stratosphere–troposphere modes over the North Atlantic in April via applying principal component (PC) analysis to regional geopotential height during 1979–2015. Both of the modes reflect the North Atlantic Oscillation (NAO)-like circulation at the midtroposphere, but the circulation patterns and planetary wave activity between the two modes are quite different. The first mode represents a stratosphere–troposphere-coupled mode. Further analysis indicates that during the years with a positive phase of the first mode, the low-level anomalous southerlies over the northern Barents Sea (BS) lead to a reduction in local sea ice, which could persist into May through the ice-albedo feedback. The BS sea ice anomalies in May could generate a southeastward propagating Rossby wave train, producing an anomalous anticyclonic circulation to the west of Qinghai–Tibet Plateau. This anomalous anticyclone induces increases in local air temperature and the meridional temperature gradient, resulting in a strengthened premonsoon circulation. Given that prediction of the premonsoon circulation over South Asia remains a challenging issue, the stratosphere–troposphere-coupling modes in April provide another potential predictability source. On the other hand, ENSO has a significant effect on the South Asian premonsoon circulations in May, and can also lead to the NAO-like circulation by influencing atmospheric Rossby waves. Such an NAO-like circulation is closely related to the second mode.
Early Urinary Catheter Removal After Colectomy for Colovesical Fistula is Not Associated With Increased Postoperative Complications
Authors: Stapler Stevie-Jay , Colom Sara M , Rajkumar Dixy , Cleary Robert K 
Published: July 2023

Background Management of the bladder defect during colectomy for colovesical fistula (CVF) and recommendations for duration of urinary catheter drainage are inconsistent. This study aimed to determine if urinary catheter drainage duration was associated with postoperative complications. Methods Retrospective single institution cohort study of patients undergoing resection for diverticular CVF from 2015 through 2021. Urinary catheter drainage was defined as Early (≤7 days postoperative and then subdivided into 1-2 days, 3-5 days, 6-7 days), and Late (>7 days postoperative). Primary outcome was a composite measure of postoperative bladder leak, surgical site infection-III, sepsis, reoperation, and postoperative length-of-stay ≥7 days. Results There were 73 patients—64 Early group and 9 Late group. Composite measure between groups (Early 25% vs Late 33.33%, P = .688) was not significantly different. The Late group had more patients with large bladder defects (33.3% vs 7.8%, P = .054), significantly more patients who underwent suture repair (55.6% vs 14.1%, P = .01), and significantly more patients that had an intraoperative pelvic drain (66.7% vs 15.6%, P = .003). After propensity score inverse weighting, the Late group had significantly more cystogram-detected postoperative bladder leaks ( P = .002) and ileus ( P = .042) than the Early group. There were no bladder leaks or ileus in those who had urinary catheter removal on postoperative days 1-2. Conclusions Early urinary catheter removal was associated with no increase in bladder leaks and fewer postoperative complications after definitive management of CVF. Further investigation is required to determine if intraoperative bladder leak testing and postoperative cystograms are useful adjuncts in decision making.
Artefactually low creatinine by Beckman Coulter enzymatic method due to immunoglobulin M paraprotein interference
Authors: Li Bobby , Thompson Simon , Igot Kareen , King Richard , Doogue Matthew , Florkowski Chris 
Published: July 2023

An 81-year-old man was admitted to hospital with symptomatic coronavirus disease (COVID-19) infection. He had a background of progressive chronic inflammatory demyelinating polyneuropathy associated with Waldenstrom’s macroglobulinaemia. His plasma creatinine on four separate samples was inconceivably low (all ≤13 μmol/L), as measured by a Beckman Coulter enzymatic assay) after being 72 μmol/L 3 months earlier. On further investigation, his serum immunoglobulin M (IgM) was 15.4 g/L and his plasma creatinine measured by Roche enzymatic and Roche Jaffe methods was 62 μmol/L and 64 μmol/L, respectively. This was consistent with results post dilution studies and polyethylene glycol (PEG) precipitation on the Beckman Coulter assay. There was no evidence of similar interference when reviewing creatinine results from 10 other patients with IgM paraproteinaemia who had been tested in our laboratory. Clinicians and laboratorians are reminded that enzymatic creatinine is not free from interferences. IgM paraprotein negative interference of enzymatic creatinine is rare and specific to a patient’s IgM and assay combination, but should be considered in patients with an unexplained low enzymatic creatinine result. Useful investigations to identify an interference include dilution studies, PEG precipitation and measuring creatinine on an alternative method such as Jaffe, mass spectrometry or an enzymatic method from a different platform.
Improvement of weathering and thermal resistance of wood-plastic composites with iron oxide nanoparticles
Authors: Durmaz Sefa , Ozgenc Keles Ozlem , Aras Uğur , Avci Erkan , Atar Ilkay 
Published: July 2023

This study comprehensively investigated the effect of iron-oxide nanoparticles (NPs) on weathering durability and thermal resistance of wood-plastic composites (WPCs). The hydrophobic nature of NPs improved the dimensional stability of WPCs. The small size of NPs deposits the voids in the matrix, which helps to increase the mechanical properties, even after weathering test. The decrease of modulus of rupture (MOR) reached up to 16% for control samples, while it was 2% for IO40-1. Despite the intensive weathering conditions, NPs cover the surface of materials like a UV shield, improving WPCs' UV resistance. Moreover, the increase in the wood and NPs content limited the UV degradation, which resulted in lower color changes. The attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) analysis also proved that there were nearly no changes in the characteristic bands of polymer (2916 and 2846 cm−1) and wood (1512 cm−1). The microscopic investigation, however, revealed the deterioration on the surface of WPCs after weathering exposure. Even though UV degradation is inevitable, iron oxide NPs significantly preserved the WPCs surface. However, there were also crack formations, which were also inhibited. On the other hand, NPs decelerated the thermal degradation by acting as a heat barrier. Thermogravimetric analysis (TGA) analysis revealed an increase in the degradation temperature. Limit oxygen index (LOI) values also increased up to 27.6%, which demonstrated an improvement against flammability.
Neighborhood Walkability, Walking Difficulties, and Participation in Leisure Activities Among Older People: A Cross-Sectional Study and 4-Year Follow-Up of a Subsample
Authors: Tuomola Essi-Mari , Keskinen Kirsi E. , Viljanen Anne , Rantanen Taina , Portegijs Erja 
Published: July 2023

Objectives: To study cross-sectional and longitudinal associations between objectively assessed neighborhood walkability, walking difficulties, and participation in leisure activities among older people. Methods: Self-reported 2 km walking difficulty (intact, modifications, difficulties) at baseline and participating in organized group, outdoor recreation and cultural activities at baseline and follow-up were studied in community-dwelling persons ( N = 848) aged 75–90. A walkability index, calculated using a geographic information system, was categorized into tertiles (lowest, middle, highest). Results: Residence in the highest walkability areas was associated with higher participation in cultural activities and lower participation in outdoor recreation, while the latter was most frequently reported by residents in the lowest walkability areas. Those reporting no difficulties were more likely than those reporting difficulties to participate in all studied activities. Residence in the middle or highest walkability areas predicted higher participation in cultural activities at follow-up. Discussion: Older persons activity profiles associate with neighborhood walkability and walking difficulties.
Clinical efficacy of centrifugal-membranous hybrid double filtration plasmapheresis and membranous double filtration plasmapheresis on severe lupus nephritis
Authors: Dong Jianhua , Huang Li , Li Chuan , WU Bian , Yang Xi , Ge Yongchun 
Published: July 2023

Objective The study delves into the clinical efficacy and safety of centrifugal-membranous hybrid double filtration plasmapheresis (C/M hybrid DFPP) on severe lupus nephritis (LN) by comparing it with membranous DFPP (M DFPP). Methods A retrospective cohort study was conducted in 70 patients who were diagnosed with severe LN and had received DFPP treatment. Results A total of 181 DFPPs were performed, including 133 C/M hybrid DFPPs (51 patients) and 48 M DFPPs (19 patients).The ANA, A-dsDNA titer, quantitative urinary protein, and serum creatinine decreased significantly and hemoglobin increased significantly after the DFPP treatment and at third month after treatment. Two patients in the M DFPP group developed bleeding complications, and four patients in the C/M hybrid DFPP group developed perioral numbness. Conclusion Although there was no significant difference in clinical efficacy between C/M hybrid DFPP and M DFPP on severe LN, the risk of bleeding complications was significantly lower in the C/M hybrid DFPP group.
Tele-orthodontics education model for orthodontic residents: A preliminary study
Authors: Masood Hayat , Rossouw Paul E , Barmak Abdul B , Malik Shaima 
Published: July 2023

Objectives Tele-orthodontics is an important medium to use for diagnosis and treatment planning and to refer patients for specific treatment when deemed necessary. The effectiveness of the Tele-orthodontics Education Model serves to improve resident's knowledge, confidence, and skills in delivering tele-orthodontic patient care. The purpose of this educational single-arm pre-test–post-test interventional study was to assess and educate orthodontic residents (6 year-one, and 6 year-two) to appropriately use tele-orthodontics. Methods The Tele-orthodontics Education Model utilizes three learning modules, a questionnaire before and after the training to assess participant knowledge, confidence and skills levels, three online multiple-choice questionnaires, three explanatory videos and an in-person simulation session. The Blackboard Learning Management System (virtual learning platform) facilitates access to the various modules of the program. Within each learning module, a participant's knowledge level was determined by utilizing five multiple-choice questions before and after each module. The various modules were introduced to the participants and then evaluated by reviewing the participant's responses to the multiple-choice questions. Results Twelve orthodontic residents completed the model in one session. Everyone fully completed the questionnaire. Post-test results showed higher mean scores for all questions addresses knowledge, the mean confidence, and skills score for post-test showed no change when compared to pre-test. Conclusions This education model was effective in improving basic knowledge in tele-orthodontics among first, and second-year orthodontic residents. We hypothesize that the residents are more informed and prepared for future tele-orthodontic practices.
Sensitivity to Change and Responsiveness of the Upper Extremity Fugl-Meyer Assessment in Individuals With Moderate to Severe Acute Stroke
Authors: Huynh Baothy P. , DiCarlo Julie A. , Vora Isha , Ranford Jessica , Gochyyev Perman , Lin David J. , Kimberley Teresa J. 
Published: July 2023

Background The Fugl-Meyer Assessment-Upper Extremity (FMA-UE) is a widely used outcome measure for quantifying motor impairment in stroke recovery. Meaningful change (responsiveness) in the acute to subacute phase of stroke recovery has not been determined. Objective Determine responsiveness and sensitivity to change of the FMA-UE from 1-week to 6-weeks (subacute) after stroke in individuals with moderate to severe arm impairment who received standard clinical care. Methods A total of 51 participants with resulting moderate and severe UE hemiparesis after stroke had FMA-UE assessment at baseline (within 2 weeks of stroke) and 6-weeks later. Sensitivity to change was assessed using Glass’s delta, standardized response means (SRM), standard error of measure (SEM), and minimal detectable change (MDC). Responsiveness was assessed with the minimal clinically important difference (MCID), estimated using receiver operating characteristic curve analysis with patient-reported global rating of change scales (GROC) and a provider-reported modified Rankin Scale (mRS) as anchors. Results The MCID estimates were 13, 12, and 9 anchored to the GROC Arm Weakness, GROC Recovery, and mRS. Glass’s delta and the SRM revealed large effect sizes, indicating high sensitivity to change, (∆ = 1.24, 95% CI [0.64, 1.82], SRM = 1.10). Results for the SEM and MDC were 2.46 and 6.82, respectively. Conclusion The estimated MCID for the FMA-UE for individuals with moderate to severe motor impairment from 1 to 6-weeks after stroke is 13. These estimates will provide clinical context for FMA-UE change scores by helping to identify the change in upper-extremity motor impairment that is both beyond measurement error and clinically meaningful.
Dupuytren Disease Surgical Treatment: A Randomized Clinical Trial Comparing Partial Fasciectomy by Bruner Approach Versus Zetaplasty
Authors: Leão Renan G. , de Moraes Vinicius Y. , Nakachima Luis R. , Belloti João C. , Santos João B. G. 
Published: July 2023

Background: Dupuytren is a fibroproliferative pathology leading to contracture of the palmar fascia. Several approaches have been described for the surgical treatment with partial fasciectomy with few comparisons in literature. Our purpose is to compare the functional outcomes between the partial fasciectomy performed by Bruner type incision and zetaplasty incision. Methods: The method used was a randomized clinical trial including adult patients of both sexes with surgical indication for Dupuytren disease presented to a reference center. Patients were randomly and consecutively allocated in the groups 1:1. We recorded the Disabilities of the Arm, Shoulder, and Hand (DASH) score; range of motion for active and passive extension of the metacarpophalangeal (MP) and proximal interphalangeal (PIP) joints; visual analog scale for pain; and complications. Results: In all, 62 patients were included, with 48 patients reaching the minimum follow-up of 6 months with 63 operated fingers. In the Bruner approach group, we obtained a correction of the active and passive extension of the MP of 28° and of the PIP of 23°. In the zetaplasty group, correction of MP was 30° for active and passive, and 18° for active extension and 16° for passive extension of the PIP. The reduction in the DASH score was 10 points in the Bruner group and 22 points in the zetaplasty group. There was no statistically significant effect of the type of treatment on preoperative and postoperative differences in any of the parameters evaluated. Conclusions: There were no statistically significant differences between the 2 techniques for self-reported functional outcomes or objective measures of physical examination.
Randomized controlled dose-escalation design to evaluate the safety of a novel pharmacological cardiopulmonary resuscitation strategy
Authors: Benson Sydney , Yannopoulos Demetri , Aufderheide Tom P , Murray Thomas A 
Published: July 2023

Background/aims The motivating randomized controlled phase I trial evaluates three sodium nitroprusside doses in a novel sodium nitroprusside-enhanced cardiopulmonary resuscitation strategy for improved end-organ perfusion relative to local standard of care. Sodium nitroprusside is a vasodilator with an established safety profile in other indications, whereas the local standard of care uses vasoconstrictors, typically epinephrine. The purpose of the proposed trial is to identify the highest safe dose of sodium nitroprusside in this new context as excessive doses may cause severe hypotension with compromised end-organ perfusion. Methods The proposed phase I trial design expands upon traditional dose-finding designs to include a randomized control arm, which is needed to assess safety through the relative increase in serum lactate on hospital admission. For guiding dose escalation, we propose and compare six Bayesian models which characterize expected serum lactate as a function of sodium nitroprusside dose and randomization group. Each model makes a different assumption about the expected change in serum lactate across control cohorts concurrently randomized with each dose. Model selection aims to minimize the expected number of times that a dose is incorrectly classified as safe or unsafe while sample size selection targets an expected number of incorrectly classified doses. Randomization is 1:1 for the initial cohort, and for subsequent cohorts is chosen to maximize the lower confidence bound. Results The spike-and-slab model minimizes the expected number of times that a dose is incorrectly classified as safe or unsafe under the most scenarios in the motivating three-dose trial, but all six models exhibit relatively similar performance. A 2:1 randomization ratio for the second and third cohorts maximizes the lower confidence bound when using the spike-and-slab model. With the optimal design, on average, 70 individuals will ensure 1 incorrectly classified dose in 6 opportunities. Conclusion We recommend that the motivating trial use the spike-and-slab model with a 1:1 randomization ratio for the initial cohort and 2:1 randomization ratio for subsequent cohorts; however, the simpler fixed effects approaches performed similarly well.