Miracle-dz/UniFAR-FTUs huggingface dataset:
Statewide Perinatal Quality Improvement, Teamwork, and Communication Activities in Oklahoma and Texas

Background and Objective: The purpose of this study was to describe statewide perinatal quality improvement (QI) activities, specifically implementation of Alliance for Innovation on Maternal Health (AIM) patient safety bundles and use of teamwork and communication tools in obstetric units in Oklahoma and Texas. Methods: In January-February 2020, we conducted a survey of AIM-enrolled hospitals in Oklahoma (n = 35) and Texas (n = 120) to gather data on obstetric unit organization and QI processes. Data were linked to hospital characteristics information from the 2019 American Hospital Association survey and hospitals' maternity levels of care from state agencies. We generated descriptive statistics for each state and created an index to summarize adoption of QI processes. We fitted linear regression models to examine how this index varied by hospital characteristics and self-reported ratings for patient safety and AIM bundle implementation. Results: Most obstetric units had standardized clinical processes for obstetric hemorrhage (94% Oklahoma; 97% Texas), massive transfusion (94% Oklahoma; 97% Texas), and severe hypertension in pregnancy (97% Oklahoma; 80% Texas); regularly conducted simulation drills for obstetric emergencies (89% Oklahoma; 92% Texas); had multidisciplinary QI committees (61% Oklahoma; 83% Texas); and conducted debriefs after major obstetric complications (45% Oklahoma; 86% Texas). Few obstetric units offered recent staff training on teamwork and communication to their staff (6% Oklahoma; 22% Texas); those who did were more likely to employ specific strategies to facilitate communication, escalate concerns, and manage staff conflicts. Overall, adoption of QI processes was significantly higher in hospitals in urban than rural areas, teaching than nonteaching, offering higher levels of maternity care, with more staff per shift, and greater delivery volume (all P < .05). The QI adoption index scores were strongly associated with respondents' ratings for patient safety and implementation of maternal safety bundles (both P < .001). Conclusions: Adoption of QI processes varies across obstetric units in Oklahoma and Texas, with implications for implementing future perinatal QI initiatives. Notably, findings highlight the need to reinforce support for rural obstetric units, which often face greater barriers to implementing patient safety and QI processes than urban units.
A numerical investigation of magnetic field generation in a flow with chaotic streamlines

Abstract High resolution numerical simulations extending those of Arnold and Korkina (1983) reveal the existence of at least two windows for kinematic dynamo action in a spatially periodic flow with chaotic streamlines. These occur at moderate magnetic Reynolds number R (8–18) and at high R (27 to 200 or more).
Time evolving simulations as a tentative reproduction of the Reynolds experiments on flow transition in circular pipes

Time developing numerical simulations of the Navier–Stokes equations in circular pipes can be performed to make an attempt to reproduce Reynolds’ 1883 experiments [Philos. Trans. R. Soc. London 174, 935 (1883)]. However, it should be demonstrated that these simulations are equivalent to space developing simulations. For Reynolds it was rather difficult to estimate exactly the inlet conditions. With high probability these were different from a Poiseuille profile with superimposed clean disturbances, the conditions often assigned in stability and transitional studies. To be close to the Reynolds experiment, in the present study, a turbulent field has been assigned as the initial condition. The lowest transition Reynolds numbers have been evaluated by decreasing the Reynolds numbers, and determining, by pressure gradient time history, and flow visualizations when the turbulent flow survives. This paper, in honor of John Kim, who used direct numerical simulation to understand the role of the near wall structu.
Tibial Plateau Leveling Osteotomy in small and large breed dogs: a comparative retrospective study of complications and outcomes

Abstract Objective To compare complication rates and outcomes of small and large breed dogs that had locking plate Tibial Plateau Leveling Osteotomy (TPLO) performed due to cranial cruciate ligament disease during the same time period at a single institution and identify potential influencing factors. Material and methods 136 cases with TPLO performed at a single institution between January 2013 and December 2015 were retrospectively reviewed. Dogs were grouped by plate sizes (2.0, 2.4, 2.7, 3.5 and 3.5 broad) and by small breeds (2.0–2.7 plate sizes) and large breeds (3.5 plates). Potential influencing factors on lameness and complications were recorded from the database and measured on radiographs and statistically compared. Results Small dogs experienced fewer complications than large dogs (10% vs. 22%) and not a single major complication. Small dogs were significantly less lame at recheck and at long-term follow-up. Progression of bone healing had an influence on the lameness grade of dogs at recheck after TPLO. Distance of the most proximal screw from the joint was identified as a risk factor for implant failure. The width of the patella ligament correlated with body weight and uniformly increased 2.4 times after TPLO. Conclusions TPLO in small breed dogs has a lower overall complication rate than in large breed dogs. The TPLO plate should always be placed as close to the joint as possible to reduce the risk of implant failure. Clinical relevance TPLO can be recommended as treatment for cranial cruciate ligament rupture (CCLR) in dogs of all sizes.
Compact Dual-frequency and Dual-polarized Monopole Antenna

In this letter, a compact dual band monopole antenna with circularly polarized (CP) property around 2.4 GHz and linearly polarized (LP) property around 1.57 GHz is presented. The antenna consists of a tree-shaped monopole antenna and a modified grounded plane. To realize CP characteristic, two orthogonal monopole arms (arms A and B) with different lengths are used to generate a phase difference of 90° . Another Y-shaped monopole (arms C and D) connected to the microstrip feed line is loaded to excite the LP mode. Compared with the previous Y-shaped monopole structure, the associated design has a significant improvement (about three times) in the axial ratio (AR) bandwidth and an excellent omnidirectional characteristic in the H-plane at around 1.57 GHz.
Speed and Accuracy of Absolute Pitch Judgments: Some Latter-Day Results.

Nine subjects, 5 of whom claimed absolute pitch (AP) ability (4 from childhood, 1 by self-training) were given a pitch judgment task in which they had to strike notes on the piano as rapidly as possible to match randomized tape-recorded piano notes. Stimulus set sizes were 64, 16, or 4 consecutive semitones, or 7 diatonic notes of a designated octave. A control task involved motor movements to notes announced in advance, with the effect that set size was 1. Accuracy, measured on the basis of deviations of responses from targets, significantly differentiated AP from NAP (non-AP) subjects at all set sizes except the control task. For both groups, accuracy increased as set size decreased. Decision times, measured as that part of total response time before a movement to the response note began, decreased as set size decreased, but did not differentiate AP and NAP subjects. The performance of the trained AP subject was not distinguishable from that of the remaining AP subjects either in accuracy or decision time. Results are discussed in terms of a two-factor theory of AP ability whereby NAP subjects use only relative tone height as the basis of judgment but AP subjects also use standards of tone chroma stored in long-term memory. The abnormally high channel capacities and rates of information gain for AP subjects are interpreted on the basis of transmission of information in two channels, whereas NAP subjects transmit information in only one channel.
Profile of neurological disorders in a tertiary center of education in orthopedics

Abstract Background Neurological conditions can cause secondary orthopedic disorders and can result from orthopedic surgical procedures. In addition, misdiagnosis and overtreatment involve both specialties. Epidemiological studies of neurological patients in tertiary units are often performed in emergency departments of general hospitals or rehabilitation centers. Objective Describe the clinical and epidemiologic profile of neurological disorders in a Brazilian federal tertiary center and education hospital in orthopedics in Rio de Janeiro. Methods We performed a retrospective study of the medical records of patients attended by neurology specialists of the internal medicine's department of the National Institute of Traumatology and Orthopedics from February 2014 to March 2020. Results We reviewed neurological referrals in the medical records of 1,349 patients in the period. The mean age of patients was 49.67 years (standard deviation [SD] ± 18.99). There was a predominance of females, corresponding to 751 (55.7%) patients. Regarding ethnicity, 684 (50.7%) participants were white, 550 (40.8%) non-white, and 115 (8.5%) non-classified. Peripheral neuropathies (34.1%), osteoarticular diseases (10%), epilepsy (8.3%), developmental disorders (7.9%), and neuromuscular diseases (7.3%) were the 5 groups with the largest numbers of cases. Conclusion The sample consisted mostly of females and white individuals, and approximately one third of the cases were of peripheral neuropathies. Epidemiological studies in neurology from tertiary centers of another medical specialty can improve the professional development of both specialties. This interdisciplinary approach can also optimize resources, help avoid misdiagnosis, and reduce disability.
Assessment of YouTube Videos about Urethral Stricture and Its Management

Abstract Purpose To evaluate the reliability, transparency, usability and technical quality of videos about urethral stricture and its management in the most common video-sharing website “YouTube”. Methods We performed a video search on YouTube using the keywords “Urethral Stricture”, “Internal Urethrotomy” and “Urethroplasty”. After excluding the videos that did not meet the inclusion criteria, demographic data of each video was recorded and assessed with the validated DISCERN questionnaire, the Journal of the American Medical Association Benchmark Score (JAMAs) and the Global Quality Score (GQS). Additionally, the Urethral Stricture Video Score was developed by two experienced surgeons to assess the technical aspects. Videos were also compared with a view to their source of upload. Results A total of 177 videos were analysed. Videos from “University” and “Other” had a significantly higher view ratio and video power index (VPI) than the rest (all p<0.05). For all mentioned scores, even though the video sources of “Society” and “University” had significantly higher scores than the rest (all p<0.05), all scores remained at a low to moderate level at each group. Conclusion Even though universities, societies and organisations tend to upload better videos about the management of urethral stricture in terms of general quality, reliability, transparency and technical aspects, the online visual content about urethral stricture and its management needs to be improved in order to provide more reliable and qualified information for both clinicians and patients.
Sex reversal dynamics of Nile Tilapia (Oreochromis niloticus) and impact on growth performance

Nile Tilapia (Oreochromis niloticus) is one of the most economically important freshwater aquaculture species globally. However, reproduction during grow-out is a major problem that hinders fish growth. Therefore, production of all-male populations of tilapia has been developed to address the problem and is also identified as one of the most effective techniques of increasing tilapia growth. Various methods have been used to produce all males in Nile Tilapia i.e. use of hormone treatment (17- α-methyltestosterone), use of temperature shock and the recent YY technology. The latter two methods have limited documentation and usage in Kenya. The current study compared effectiveness of temperature and hormone sex reversed O. niloticus fry and influence on growth in hapa nets over a period of 3 months. Nile Tilapia fry of 3 days old after egg yolk absorption were sex reversed using hormone for 21 days and temperature shock for a period of 14 days. Hormone use involved making a dose of 60 mg kg-1 of feed while temperature shock involved raising temperature from 28°C to between 30 °C and 34 °C. Analysis of Specific Growth Rate using one-way analysis of variance, ANOVA, showed no significant difference between hormone and temperature induced sex reversed fish (F=0.0975, P=0.7705). Sex reversal efficacy rates of 91.18% and 92.86% were attained using 17- α-methyltestosterone hormone and temperature shock, respectively. The results indicate that temperature shock could be a replacement for Tilapia sex reversal without any negative consequences on growth.
Preliminary Findings on Long-Term Impacts of the COVID-19 Pandemic on Social Work Students

ABSTRACT Impacts of the COVID-19 pandemic upon social work programs have been profound and institutions have struggled to identify appropriate policies and interventions to address students’ educational, health, and safety needs. This manuscript reports the results of a survey administered to BSW and MSW students at three different timepoints during the pandemic: March 2020 (N = 157), November 2020 (N = 87), and March 2021 (N = 45). The survey explored students’ experiences of online learning, pandemic-related stressors, mental health symptoms, and the department and institution’s responses to the pandemic. Although initial comfort with online classroom learning was low, comfort levels increased significantly as the pandemic continued. Students in the MSW online program were the most comfortable with online learning and BSW students the least. Students reported high levels of pandemic-related stressors and behavioral health symptoms throughout the pandemic and approximately half the sample reported concerns about program continuance. Although students felt supported by the social work program, they felt institutional policies to address COVID-19 were inadequate. Useful interventions identified included access to mental health, financial supports, flexibility and support from faculty, clear and consistent communication, and a decrease in field hours during the pandemic.
Electromagnetic inverse problems for nematic liquid crystals and capacitance imaging

The aim of this study is to formulate and solve the high-frequency electromagnetic problem of wave propagation through nematic liquid crystal cells of arbitrary shape, and subsequently approach the inverse problem of reconstructing the orientational order by means of recovering the dielectric tensors in the interior from a finite set of boundary polarization measurements. The numerical solution of the forward electromagnetic problem is achieved by hybridizing the conventional vector finite elements with a boundary integral method, so that to preserve the necessary continuity conditions for the electromagnetic fields at the boundary of the domain. Combining the finite element equations with a magnetic field integral boundary equation yields surface integrals involving Green s function and its gradient. These integrals have kernels that become asymptotically singular as the distance between the observation and integration points reduces to zero, essentially making the numerical integration process problematic. For their computation a new basis of functions are introduced for the surface current density, the so-called Rao-Wilton-Glisson functions, which e®ectively substitute the tangential components of the magnetic field in the original boundary integrals. The transformed integrals are then treated with the singularity extraction method, essentially separating the smooth from the singular components of the kernels, the former of which are computed using conventional numerical integration and the later using closed form expressions derived for the RWG functions. The forward problem is then linearized with the aid of the Fr´echet derivative of the forward Maxwell operator and subsequently regularized using a Tikhonov type regularization. In regularization we construct a penalty term based on Frank s distortion energy functional, which is known to have a minimum in the neighborhood of stable liquid crystal director configurations. The inverse problem of reconstructing the orientation of the director vector in a uniaxial nematic liquid crystal using a finite set of noise infused boundary polarization measurements is approached as a special case of the inverse permittivity tensor problem, where the dielectric tensors are symmetric and expected to vary most significantly along the directions of their two biggest eigenvalues, which correspond to the associated Euler angles of the director vector.
Digital natives aren’t concerned much about privacy, or are they?

Abstract Voice assistants have become embedded in people’s private spaces and domestic lives where they gather enormous amounts of personal information which is why they evoke serious privacy concerns. The paper reports the findings from a mixed-method study with 65 digital natives, their attitudes to privacy and actual and intended behaviour in privacy-sensitive situations and contexts. It also presents their recommendations to governments or organisations with regard to protecting their data. The results show that the majority are concerned about privacy but are willing to disclose personal data if the benefits outweigh the risks. The prevailing attitude is one characterised by uncertainty about what happens with their data, powerlessness about controlling their use, mistrust in big tech companies and uneasiness about the lack of transparency. Few take steps to self-manage their privacy, but rely on the government to take measures at the political and regulatory level. The respondents, however, show scant awareness of existing or planned legislation such as the GDPR and the Digital Services Act, respectively. A few participants are anxious to defend the analogue world and limit digitalization in general which in their opinion only opens the gate to surveillance and misuse.
On internal boundary layers in a well mixed equatorial atmosphere

It is known that a non-viscous fluid confined in a rotating spherical shell neither possesses a discrete eigenvalue spectrum nor smooth eigenmodes. Mathematically, the motion of a fluid in a rotating spherical shell is governed by a hyperbolic boundary value problem. Generic features of such problems are singularities in the flow field, referred to as internal boundary layers. Physically, these singularities correspond to wave attractors, that are regions to which all internal waves in the fluid are inevitably drawn. This focusing results from multiple reflections of the internal waves at boundaries. Therefore, internal boundary layers typically occur for enclosed fluids. The model studied here is a certain approximation to the rotating spherical shell. It describes the structure of slow, zonally symmetric inertial waves of a homogeneous fluid in the neighborhood of the equator, enclosed between a flat lower and upper boundary. Exact solutions of this model are discussed, computed by a method that can handle hyperbolic boundary value problems. Solutions for different frequencies show internal boundary layers, corresponding with internal wave attractors. The boundary layers consist of alternating shear layers aligned along the wave attractor. They show a self-similar pattern that becomes infinitely thin at the position of the attractor. In addition to the results discussed, the paper is intended to introduce the concept of internal boundary layers and wave attractors to the broader meteorologic and oceanographic community. As in almost all theoretical studies of geophysical flows, strong model simplifications are required to find solutions analytically. Nevertheless, it is believed that this approach is useful to highlight fundamental properties of equatorial internal boundary layers that might be important for atmosphere and ocean.
Parametric effects on surface color-difference evaluation at threshold†

Experiments on thresholds of perceptible color-difference at CIE color centers have been extended for the parametric effects of the lightness of an achromatic surround and of a separating gap between a pair of painted specimens. Components of perceived color-difference (hue, chroma, lightness) approximately could be assigned to geometric elements of threshold ellipsoids and used for component analysis. A study of ellipsoid and city-block modelling revealed ellipsoid to be slightly better. An increase of total threshold by changed lightness of the achromatic surround was found only in the case of the dark CIE Blue, but in every case a gap increased threshold the darker the CIE color center. The results can be used for a correction in color-difference evaluation.
An unobtrusive upper-limb activity recognition system based on deep neural network fusion for stroke survivors

Stroke is a cerebrovascular disease that may cause long-term paralysis. Stroke survivors can recover more quickly with personalized treatment, which often requires the identification and evaluation of daily activities. Most of the existing methods for stroke activity recognition use wearable devices to collect motion and/or electrophysiology signals. However, as most survivors are elderly, the wearing process and operation methods are inevitably inconvenient for them. In this paper, we proposed an unobtrusive upper-limb movement recognition system for stroke survivors based on model fusion via combining three deep neural networks. Specifically, we recruited 16 stroke survivors with different impairment levels. Considering fine and dexterous movements of the upper limbs and hands take an important part in our daily life, fine-grained hand activities are more difficult to recognize. We conducted seventeen hand gesture recognition using video data collected by an Azure Kinect sensor. We compared the performance of three state-of-the-art deep neural networks, namely TSN, I3D, and Slowfast. Moreover, we fused the three models using soft voting. The top1 mean accuracy of our fusion model is 93.45% on our dataset. With our method, it is expected to assist rehabilitation physicians, to formulate the corresponding treatment plan, and make better-personalized treatment for stroke survivors.
Consistency and Asymptotic Normality of the Quasi-maximum Likelihood Estimator in IGARCH(1,1) and Covariance Stationary GARCH(1,1) Models

This paper provides a proof of the consistency and asymptotic normality of the quasi-maximum likelihood estimator in GARCH(1,1) and IGARCH(1,1) models. In contrast to the case of a unit root in the conditional mean, the presence of a 'unit root' in the conditional variance does not affect the limiting distribution of the estimators; in both models, estimators are normally distributed. In addition, a consistent estimator of the covariance matrix is available, enabling the use of standard test statistics for inference. Copyright 1996 by The Econometric Society.