Miracle-dz/UniFAR-FTUs huggingface dataset:
NRR_A_331137 31..39

Department of Nursing and Midwifery, Mzuzu University, Mzuzu, 2, Malawi Purpose: Clinical practice during pandemics is known to bring additional fears to nursing students. The purpose of this study was to explore fears of Mzuzu University’s nursing students nurses regarding resumption of clinical practice amidst the Coronavirus disease (COVID-19) pandemic. Methods: The study used a qualitative approach employing a descriptive phenomenological design. Mzuzu University Research Ethics Committee (MZUNIREC) approved the study and issued MZUNIREC/DOR/20/06 as approval number. An independent person collected data through four focus group discussions with a purposefully selected sample of 40 consented nursing students who had completed clinical practice during the first wave of the COVID-19 pandemic. Data analysis was done manually using content analysis. The analysis started with transcription of the interviews. Following this, data were coded and categorized into themes and subthemes were established from participants’ significant statements. Results: Four major themes about the fears amongst the student nurses emerged. These were as follows: equipment and supplies; increased perceived risk for acquiring and transmitting COVID-19; stigma and discrimination and perceived fear of not having adequate learning. Conclusion: Clinical practice during the COVID-19 pandemic brings fear among nursing students and requires that implementers of nursing and midwifery programs prioritize ascertaining student’s skill, emotional wellbeing and provision of adequate resources before deploying them to clinical areas.
Disentangled Contrastive Learning on Graphs

Recently, self-supervised learning for graph neural networks (GNNs) has attracted considerable attention because of their notable successes in learning the representation of graph-structure data. However, the formation of a real-world graph typically arises from the highly complex interaction of many latent factors. The existing self-supervised learning methods for GNNs are inherently holistic and neglect the entanglement of the latent factors, resulting in the learned representations suboptimal for downstream tasks and difﬁcult to be interpreted. Learning disentangled graph representations with self-supervised learning poses great challenges and remains largely ignored by the existing literature. In this paper, we introduce the Disentangled Graph Contrastive Learning ( DGCL ) method, which is able to learn disentangled graph-level representations with self-supervision. In particular, we ﬁrst identify the latent factors of the input graph and derive its factorized representations. Each of the factorized representations describes a latent and disentangled aspect pertinent to a speciﬁc latent factor of the graph. Then we propose a novel factor-wise discrimination objective in a contrastive learning manner, which can force the factorized representations to independently reﬂect the expressive information from different latent factors. Extensive experiments on both synthetic and real-world datasets demonstrate the superiority of our method against several state-of-the-art baselines.
Model of superconducting alternating current bolometers

We present a model of the response of superconducting AC bolometers to signal and noise using parameters and matrix formalism that were previously adopted in modeling DC bolometers and microcalorimeters. The model was developed to investigate novel AC bolometer designs, which have properties not described by previous models. It is applicable to kinetic inductance devices, kinetic inductance thermometers, AC transition edge sensors, and other technologies based on AC read out and frequency mixing. The AC bolometer model includes the temperature and current dependence of both resistive and inductive bolometers and microcalorimeters. The bolometers may be thermal or athermal. The model compactly describes the complex relationships between electrical and thermal signals and it simplifies the associated calculations. This model is useful for characterizing bolometers, predicting the effects of various noise sources on performance and designing new detectors. Additionally, a measurement technique is developed f.
A calculable, transportable audio-frequency AC reference standard

A transportable ac voltage source is described, in which sinusoidal signals are digitally-synthesized in the audio-frequency range. The rms value of the output waveform may be calculated by measuring the dc level of the individual steps used to generate the waveform. The uncertainty of this calculation is typically 10 ppm from 20 Hz - 10 kHz at the 7 V level.
Effects of Cooperative Learning Instruction On Students ’ Achievement In

The study investigated the effects of cooperative learning instruction on students’ achievement in biology in Aguata education zone of Anambra State. Two research questions guided the study. Quasi-experimental design of pretest post test comparative group design which did not involve control group was used. 360 SSII biology students formed the sample (180 males and 180 females) which was drawn from six secondary schools out of thirty government owned secondary schools in Aguata education zone. Purposive sampling technique was used for the study. Six (6) secondary schools (2 males, 2 females and 2 co-educational) were purposively sampled and were exposed to experimental treatment of cooperative, competitive and individualistic learning instruction. Each variable served, as a control to the other. Data was collected using Biology Achievement test (BAT) which was constructed by the researchers. BAT content validity was ensured by a test blueprint, while face validity was ensured by two biology educators and one expert in measurement and evaluation from the science Education, department, university of Nigeria, Nsukka. The reliability coefficient of BAT was established using Kuder-Richardson 20 (K – R 20). Mean and standard deviation was used to answer the research questions while Analysis of covariance (ANCOVA) as used to test the null hypotheses. Result showed among others that cooperative learning instruction affected students’ achievement in biology more positively than competitive and individualistic learning instructions. Also, the mean achievement scores for the male students were consistently higher than that of the female students in the three groups. Recommendations and conclusions were highlighted.
Functional Variational Inference based on Stochastic Process Generators

Bayesian inference in the space of functions has been an important topic for Bayesian modeling in the past. In this paper, we propose a new solution to this problem called Functional Variational Inference (FVI). In FVI, we minimize a divergence in function space between the variational distribution and the posterior process. This is done by using as functional variational family a new class of flexible distributions called Stochastic Process Generators (SPGs), which are cleverly designed so that the functional ELBO can be estimated efficiently using analytic solutions and mini-batch sampling. FVI can be applied to stochastic process priors when random function samples from those priors are available. Our experiments show that FVI consistently outperforms weight-space and function space VI methods on several tasks, which validates the effectiveness of our approach.
Interference mitigation techniques for broadband satellite system

This paper presents an overview of possible interference mitigation techniques aiming at increasing the system capacity of broadband multimedia satellite systems. A multi-star network topology using a bent-pipe transparent satellite is assumed. After a general overview, the paper concentrates on the assessment of Linear Precoding techniques for increasing the potential system capacity on the Forward Link. Potential performance improvements achievable in real systems are investigated as well as resulting system constraints.
Design of loading policies for a high-performance computer system

We use a systematic simulation study of computer-system loading policies to design a loading policy for a high-performance system. Our results illustrate the performance advantages of ‘round-robin’ disciplines, the interference caused by finite memory, and how this interference can be mitigated by using carefully selected loading policies that exploit information about job resource requirements. Our choice of performance measures allows us to assess response-time predictability and fairness as well as overall efficiency. Using the insights obtained from our study, we introduce a new type of policy, the NEST policy, which is structured to employ the principles of good scheduling, while avoiding shortcomings of commonly used approaches.
APA Handbook of Trauma Psychology: Foundations in Knowledge

http://dx.doi. org/10.1037/0000019-016 APA Handbook of Trauma Psychology: Vol. 1. Foundations in Knowledge, S. N. Gold (Editor-in-Chief) Copyright © 2017 by the American Psychological Association. All rights reserved. This chapter reviews how memory develops through the lifetime, and how understanding these normal processes illuminates the effects of trauma on memory. It addresses controversies in memory research as well as how memory interacts with other neurological and interpersonal systems. This chapter identifies foundational concepts and important past research and also emphasizes new and updated studies on the cutting edge of this area of research.
EMG, Force, and Power Analysis of Sprint-Specific Strength Exercises

This study was undertaken to compare force-time characteristics, muscle power, and electromyographic (EMG) activities of the leg muscles in maximal sprinting and in selected bounding and jumping exercises. Seven male sprinters performed maximal bounding (MB), maximal stepping (MS), maximal hopping with the right (MHR) and left (MHL) legs, and maximal sprint running (MR). These “horizontal” exercises and running were performed on a force platform. EMG activity was telemetered unilaterally from five leg muscles during each trial. The results indicated significant (p < .001) differences among the studied exercises in velocity, stride length, stride rate, flight time, and contact time. Also, significant differences were noticed in reactive forces (p < .01-.001) and power (p < .01) among the performances, whereas only insignificant differences were observed in EMG patterns. The average resultant forces during the braking and propulsion phases in MS, MHR, and MHL were greater (p < .001) than in MR and MB. Stepp.
EFL Learners’ Perceptions Regarding the Use of Busuu Application in Language Learning: Evaluating the Technology Acceptance Model (TAM)

After the exceptional circumstances the whole world has experienced due to the COVID-19 pandemic, students have become digital natives who seek learning that overcomes the barriers of place and time. This mixed-methods study aimed at investigating EFL learners' perceptions regarding the application of Busuu in language learning, by applying the Technology Acceptance Model (TAM). The participants were 58 first secondary stage students in a Saudi private school. An online survey and a semi-structured interview were used to collect data. The results revealed that EFL learners have a positive attitude towards Mobile Assisted Language Learning (MALL). Additionally, according to the TAM, the participants found the language application Busuu useful and easy to use. They also thought of Busuu as a valuable resource for language learning, which increases their motivation to be autonomous learners. However, in addition to the TAM components, the results also showed that affordance and joyfulness could be strong indicators of learners' acceptance of a particular technology. Moreover, the results revealed that mobile applications might be more helpful for beginner learners than advanced ones. On the other hand, the findings also showed that Busuu might distract learners from doing their homework. Besides, the regular use of Busuu might be harmful to their eyes due to the small mobile screen size. For further research, the recommendation includes a large sample size in addition to a long-term study of EFL learners' perception towards Busuu in normal classroom circumstances.
Studies on the Occurences of Extended-Spectrum Beta-Lactamase (ESBL) Producing Klebsiella pneumonia in Chicken Environments. Lebechukwu Ogechukwu Rapuruchukwu and Obodo Nathanael C

Samples were collected from 70 poultries and 20 slaughters in Enugu north Local Government Area (L.G.A), Udi L.G. A and Enugu south L.G. A areas of Enugu State. A total number of 125 samples were analyzed in this research with the aim of screening for ESBL producing Klebsiella pneumonia and objectives of isolating ESBL producing Klebsiella pneumonia in chicken feed, chicken water, chicken excretes, chicken slaughters and chicken environment in the poultries located in the above mentioned areas. Twenty samples were analysed each for the chicken feeds, waters, excretes, slaughters and environment and a total of 100 samples of Klebsiella pneumonia were tested for ESBL production. Sixty eight samples (68%) of Klebsiella pneumonia were confirmed positive for ESBL production resulting from 12% ESBL positive samples from chicken feeds, 10% ESBL positive samples from chicken water, 17% ESBL positive samples from chicken excrete, 17% ESBL positive samples from chicken slaughters and 12% ESBL positive samples from chicken environment. To confirm ESBL production due to plasmid mediated origin or genetic mediated origin, a total of 68 samples of Klebsiella pnemoniae were cured or treated of plasmid using Acridine orange dye and retested for ESBL production. Out of the 68 samples of Klebsiella pneumonia cured, 59 samples (86.7%) were cured of plasmid and do not show ESBL production after retest and they are referred to as plasmid mediated ESBL while 9 samples (13.2%) were cured of plasmid and still show resistant to penicillin and cephalosporin after retest due to other reasons such as lack of penicillin binding protein (PBP) and not due to plasmid and they are called Genetic mediated ESBL.
Resonance phenomena and power loss in conductor-backed coplanar structures

Resonances and associated power loss which occur in conductor backed coplanar transmission lines (CPWs) at selected frequencies have been investigated by experiment and by three-dimensional (3-D) EM simulations from 1 to 230 GHz. It is found that a substantial part of the incident power is lost by reflection and radiation. The resonance frequencies are predictable by patch antenna theory.
SOFTWARE VULNERABILITY DEPENDENT ON MACHINE LEARNING

Software vulnerabilities are main reasons of various security attacks, so it will greatly compromise the safety of the system, and may even cause losses. With the undeniably rich of weakness related information and the broad use of machine learning strategies, programming weakness examination strategies dependent on AI is turning into an significant research region of data security. In this paper, the modern and surely understood works in this investigate territory is discussed. We have thought about, the restrictions of these works
A lower power reconfigurable multi-band transceiver for short-range communication

A reconfigurable multi-mode multi-band transceiver for low power short-range wireless communication applications is presented. Its low intermediate frequency (IF) receiver with 3 MHz IF carrier frequency and the direct-conversion transmitter support reconfigurable signal bandwidths from 250 kHz to 2 MHz and support a highest data rate of 3 Mbps for MSK modulation. An integrated multi-band PLL frequency synthesizer is utilized to provide the quadrature LO signals from about 300 MHz to 1 GHz for the transceiver multi-band application. The transceiver has been implemented in a 0.18 μm CMOS process. The measurement results at the maximum gain mode show that the receiver achieves a noise figure (NF) of 4.9/5.5 dB and an input 3rd order intermodulation point (IIP3) of −19.6/−18.2 dBm in 400/900 MHz band. The transmitter working in 400/900 MHz band can deliver 10.2/7.3 dBm power to a 50 Ω load. The transceiver consumes 32.9/35.6 mW in receive mode and 47.4/50.1 mW in transmit mode in 400/900 MHz band, respectively.
The effect of lairage time and transport density on live weight losses and meat quality in slaughter ostriches

ENGLISH ABSTRACT: Although transport and lairage of ostriches are accepted causes of production losses, these losses have not yet been quantified. Transport and lairage regulations focus on the wellbeing of the birds and, by default reduce some losses. This thesis investigated weight losses and meat quality of ostriches as a result of transport density, lairage duration and lairage feed availability (ad libitum). All birds were reared on the same farm and loaded and transported together. They were randomly divided into their respective groups on loading for the transport trial, and on offloading for the lairage trial. Bird grouping was according to density for the transport trial (4 groups, H1, H2: 0.56m2/bird and L1, L2: 0.96m2/bird) and according to time spent in lairage and feed availability for the lairage trial (n=30 birds/group; L0hr and L24hr; n=15 birds/group L48hr and L48hr ad libitum feed). Behavioural observations of the ostriches showed a tendency of the ostriches to lean against objects and to orientate towards forces exerted on it to help keep its balance. Reactions to sound fluctuations were noted, with birds reacting towards changes in sound volume during transport and lairage. Timepoint numbers were allocated for each time the birds were weighed during the trial. Time points 1, 2, 3, 4 and 5 were allocated to loading, arrival, 19 hr in lairage, 31 hr in lairage and 39 hr in lairage respectively for Trial 2. Results showed no differences (P > 0.05) in live weights or meat quality parameters between Groups H1, H2, L1 and L2 during transport. Differences (P < 0.05) were found in cumulative weight losses between L0hr and the rest of the groups for time point 1. Differences between L48hr and L48hr ad libitum were found for time point 4 for cumulative weight loss. L48hr also differed significantly between the other lairage duration groups for dressing percentages as a function of loading weight. Ad libitum feed availability had a significant effect on live body weight changes but not the meat quality parameters for the groups held for 48hr in lairage. The number of birds having bruises (≈50% per group) was similar between groups and lairage had no influence on bruising. Results seem to indicate that the evaluated transport densities had no effect on the weight loss or meat quality of ostriches. However, the results indicate that the lairage period should be studied further with specific reference to weight losses during lairage. Meat quality was unaffected by the lairage parameters reported in this thesis. %%%%AFRIKAASE OPSOMMING: Hoewel vervoer en voorslag hou (“lairage”) aanvaar word as die oorsake van produksieverliese, is hierdie aspekte nog nie gekwantifiseer nie. Regulasies in terme van vervoer en voorslag hou fokus op die welstand van die voels en gevolglik verminder sommige verliese met hierdie faktore. Konflik tussen boere en sekondere produsente (abattoirs en verwerkers) oor die kostes verbonde aan hierdie gewigsverliese, is in wese ‘n oorsaak van oorbruggingsfases (vervoer). Daarom is die…
Usefulness of Synthetic Osteoconductive Bone Graft Substitute with Zeta Potential Control for Intramedullary Fixation with Proximal Femur Nail Antirotation in Osteoporotic Unstable Femoral Intertrochanteric Fracture

Purpose This study was conducted in order to examine the usefulness of osteoconductive bone substitutes with zeta potential control (geneX® ds; Biocomposites, England) by comparing the complications and radiographic evaluation with or without geneX® ds augmentation for internal fixation with proximal femur nail antirotation (PFNA) for treatment of osteoporotic unstable intertrochanteric fractures. Materials and Methods A retrospective study of 101 patients who underwent fixation with PFNA in osteoporotic unstable intertrochanteric fractures was conducted from December 2015 to August 2020. The radiographic evaluation and complication rates were compared between patients with geneX® ds (Group A: 41 cases) and those without geneX® ds (Group B: 60 cases). Results In radiological valuation, the degree of blade sliding from the time immediately after surgery to one year after surgery was 1.4±1.2 mm and 5.8±2.7 mm in Group A and Group B, respectively (P<0.001). During the same time frame, a significant difference of 2.3±2.2° and 7.4±3.1° , respectively (P<0.001), in varus collapse, was observed for Group A and Group B. Conclusion Among patients fixed with PFNA for treatment of unstable intertrochanteric fractures, less blade sliding and varus collapse was observed for those with geneX® ds augmentation compared to those without it. In addition, there was no increase in the incidence of complications. The authors believe it can be regarded as a safe and effective additive for intramedullary fixation for treatment of unstable intertrochanteric fractures.
Unfalsified Switching Adaptive Voltage Control for Islanded Microgrids

Microgrid's voltage regulation is of particular importance during both grid-connected and islanded modes of operation. Especially, during the islanded mode, when the support from the upstream grid is lost, stable voltage regulation is vital for the reliable operation of critical loads. This paper proposes a robust and data-driven control approach for secondary voltage control of AC microgrids in the presence of uncertainties. To this end, unfalsified adaptive control (UAC) is utilized to select the best stabilizing controller from a set of pre-designed controllers with the minimum knowledge required from the microgrid. Two microgrid test systems are simulated in MATLAB to verify the effectiveness of the proposed method under different scenarios like load change and communication link failure.
'Super googs on a Zoom, are you kidding me?': The pleasures and constraints of digitally-mediated alcohol and other drug consumption.

INTRODUCTION The COVID-19 pandemic and associated social restrictions have profoundly shaped the routines, practices and space-times of alcohol and other drug (AOD) consumption. As a part of these transformations, video conferencing services (e.g. Zoom, Whereby) have emerged as popular mediums for socialising and AOD consumption. In this article, we adopt a more-than-human theoretical framework to explore how these online contexts re-shape experiences of AOD consumption. METHODS Data were gathered using a case-study approach, guided by principles of digital ethnography. We 'staged' the online gatherings of three established friendship clusters of adults in Melbourne, Australia, and drew on a discussion guide to elicit accounts of past online AOD encounters during the COVID-19 pandemic. Our thematic analysis was sensitised to the dynamic composition of these encounters and the kinds of relations, practices and affects they enabled and constrained. RESULTS Composed via video conferencing services, AOD consumption afforded distinct pleasures, including enhanced sociality, excitement and momentary reprieves from isolation. Importantly, these effects were not uniform or stable. Participants also navigated various constraints of online AOD consumption while establishing for themselves what substances and associated practices 'fit' within these novel encounters. DISCUSSION AND CONCLUSIONS Our study conveys the importance of digitally-mediated AOD consumption as a site of socialising and pleasure. In so doing, it demonstrates the ways in which AOD consumption was drawn on in the everyday negotiation of health and wellbeing under lockdown conditions. We call for research and policy approaches that are sensitive to the affirmative potentials of digitally=mediated AOD encounters.