Miracle-dz/UniFAR-FTUs huggingface dataset:
Importance of Muscle Power Variables in Repeated and Single Sprint Performance in Soccer Players

Abstract This study examined the relationship between lower body power and repeated as well as single sprint performance in soccer players. The performance of nineteen male soccer players was examined. The first testing session included the countermovement jump (CMJL) and the progressive full squat (FSL), both with external loads. Power in the CMJL and FSL was measured with each load that was lifted. The second session included a protocol of 40-m repeated sprints with a long recovery period (2 min). The number of sprints executed until there was a 3% decrease in performance for the best 40-m sprint time was recorded as a repeated sprint index (RSI). The RSI was moderately associated with power output relative to body mass in the CMJL and FSL (r = 0.53/0.54, p ≤ 0.05). The most and least powerful players (determined by FSL) showed significant differences in the RSI (9.1 ± 4.2 vs. 6.5 ± 1.6) and 10 m sprint time (p 0.01). Repeated and single sprints are associated with relatively lower body power in soccer players.
Pre-service teachers in PE involved in an organizational critical incident: emotions, appraisal and coping strategies

Background: Emotions play a major role in the learning of pre-service teachers. However, there is a lack of in-depth research on emotion in the context of physical education (PE), especially during the practicum. Lazarus's model and its concepts of appraisal and coping is a salient theoretical framework for understanding the emotional process. Aim: To understand the role of personal and contextual factors in the emotional process experienced by pre-service teachers in PE. Participants: Contrasting case studies of two pre-service teachers in PE during their practicum at a secondary school in Belgium. Data collection and analysis: Participants were interviewed after viewing an audio-visual recording of a lesson they gave and encouraged to express the emotions and describe the strategies they used to cope with an unanticipated event called an ‘organizational critical incident’ (OCI). The verbatim was analysed using QSR-NVivo software to describe these emotions, appraisals and coping strategies. Findings: Pre-service teachers experience emotional flux when they are involved in an OCI. They appraise the situation as being either a challenge or a threat. Perception of self-efficacy in classroom management and the ability to seize opportunities as they emerge in an unfolding situation are determinant factors in the choice of coping strategies. Conclusions: The study reveals that OCIs are experienced as negative emotional episodes, more or less intense. Immersed in such an emotional situation, the choice of a coping strategy is linked to personal factors, such as goal hierarchy and a perception of high self-efficacy, coupled with contextual factors, such as pupils' rate of activity.
Checking the Integrity of Transactional Mechanisms

Data corruption is the most common consequence of file-system bugs. When such corruption occurs, offline check and recovery tools must be used, but they are error prone and cause significant downtime. Previously we showed that a runtime checker for the Ext3 file system can verify that metadata updates are consistent, helping detect corruption in metadata blocks at transaction commit time. However, corruption can still occur when a bug in the file system’s transactional mechanism loses, misdirects, or corrupts writes. We show that a runtime checker must enforce the atomicity and durability properties of the file system on every write, in addition to checking transactions at commit time, to provide the strong guarantee that every block write will maintain file system consistency. We identify the invariants that need to be enforced on journaling and shadow paging file systems to preserve the integrity of committed transactions. We also describe the key properties that make it feasible to check these invariants for a file system. Based on this characterization, we have implemented runtime checkers for Ext3 and Btrfs. Our evaluation shows that both checkers detect data corruption effectively, and they can be used during normal operation with low overhead.
Complex posttraumatic stress disorder and child maltreatment in forensic inpatients

Abstract There is converging evidence that forensic inpatients represent a severely traumatized population, particularly with respect to child maltreatment including sexual, physical, and emotional abuse as well as emotional and physical neglect. One of their possible aftermaths is captured by the syndrome of complex posttraumatic stress disorder (PTSD). This study investigated the prevalence of child maltreatment and complex PTSD in forensic patients. A total of 32 patients (28 men, 4 women) with a mean age of 36.9 years (SD = 11.8) were studied with the Structured Interview for Disorders of Extreme Stress (SIDES) and the Childhood Trauma Questionnaire (CTQ). The majority had experienced emotional abuse (75%), neglect (59%), and physical abuse (52%). The three-month prevalence of complex PTSD was 28% and the lifetime prevalence was 44%. Subjects with complex PTSD had significantly more physical abuse than those without complex PTSD, but did not differ in the other types of trauma. In line with previous research our results indicate that (a) a substantial proportion of forensic patients has been severely victimized in childhood and (b) nearly half meet diagnostic criteria for complex PTSD. These findings have important implications for the treatment process.
A metric learning perspective of SVM: on the relation of SVM and LMNN

Support Vector Machines, SVMs, and the Large Margin Nearest Neighbor algorithm, LMNN, are two very popular learning algorithms with quite different learning biases. In this paper we bring them into a unified view and show that they have a much stronger relation than what is commonly thought. We analyze SVMs from a metric learning perspective and cast them as a metric learning problem, a view which helps us uncover the relations of the two algorithms. We show that LMNN can be seen as learning a set of local SVM-like models in a quadratic space. Along the way and inspired by the metric-based interpretation of SVM s we derive a novel variant of SVMs, epsilon-SVM, to which LMNN is even more similar. We give a unified view of LMNN and the different SVM variants. Finally we provide some preliminary experiments on a number of benchmark datasets in which show that epsilon-SVM compares favorably both with respect to LMNN and SVM.
Pragmatic Language Assessment: A Pragmatics‐As‐Social Practice Model

Pragmatic language skills are important for developing relationships with others, and for communicating with a range of interlocutors in a variety of contexts, including preschool and elementary school classrooms. Pragmatic language difficulties frequently are a primary area of disability for children diagnosed with autism, Asperger's syndrome, fetal alcohol spectrum disorders, or with a history of maltreatment, but difficulty in this area also can occur for children who do not have specific developmental disabilities. Assessment is made more complex because pragmatic language skills are manifestations of social and cultural practices learned within historical process of economic, political, and cultural relations. Therefore, it is important for communication professionals to have access to user-friendly tools that can be used efficiently to produce accurate data about many areas of pragmatic language skills. This article provides the conceptual basis and analysis of a new pragmatic language assessment tool being developed for diverse populations in the preschool and early elementary school years.
Parenting Children With Autism Spectrum Disorders

Balancing the roles of parent and partner is challenging for most people and may be especially challenging when extra time and effort are required in the parenting role. The current research compared 25 couples whose children have autism spectrum disorders (ASD) with 20 couples whose children do not have developmental disorders. Comparisons were made for both stressor (e.g., child's behavior problems) and relational (e.g., relationship satisfaction) variables. Results indicated that parents of children with ASD experienced more intense child behavior problems, greater parenting stress, and lower relationship satisfaction. In contrast, the two groups of couples did not differ on perceived spousal support, respect for their partners, and commitment. The implications of the findings of this study and other related research are discussed.
Quantitative 19F imaging using inductively coupled reference signal injection

This report describes recent efforts on our continuous development of a synthetic signal injection method for quantification of metabolite content in MR spectroscopy and MRI. Previous work showed that conversion of spectral peaks to quantitative units of metabolite content could be achieved with a calibrated synthetic free induction decay generated by an inductively coupled injection coil. This work demonstrates that calibrated synthetic voxels, injected in the same manner, can be used to quantify metabolite content in real 19F image voxels. Images of vials containing different concentrations of sodium fluoride (NaF) were converted to units of moles by reference to precalibrated synthetically injected voxels. Additional images of vials containing variable sodium chloride (NaCl) demonstrate that the quantification process is robust and immune to changes in coil loading conditions. Magn Reson Med 63:570–573, 2010. © 2010 Wiley‐Liss, Inc.
Methodology and Resources for The Structural Segmentation of Music Pieces into Autonomous and Comparable Blocks

The approach called decomposition into autonomous and comparable blocks speci es a methodology for producing music structure annotation by human listeners based on a set of criteria relying on the listening experience of the human annotator. The present article develops further a number of fundamental notions and practical issues, so as to facilitate the usability and the reproducibility of the approach. We formalize the general methodology as an iterative process which aims at estimating both a structural metric pattern and its realization, by searching empirically for an optimal compromise describing the organization of the content of the music piece in the most economical way, around a typical timescale. Based on experimental observations, we detail some practical considerations and we illustrate the method by an extensive case study. We introduce a set of 350 songs for which we are releasing freely the structural annotations to the research community, for examination, discussion and utilization.
Response to Margolis, Hodge and Alexandrou: misrepresentations of teacher resilience and hope

We write this in the interests of intellectual integrity and accuracy. Our work has been seriously misrepresented in the paper by Margolis, Hodge and Alexandrou (2014) (http://dx.doi.org/10.1080/02607476.2014.929382) in this Issue of Journal of Education for Teaching. As members of the educational research and teaching community, we see it as our responsibility to ensure that what we have passionately argued for in relation to ‘teacher resilience’ and ‘hope’ is correctly recorded in the continuously increasing knowledge of teachers’ work and lives. First, we have long argued that resilient and committed teachers are not and should not be treated as superheroes who possess ‘super-human capacity to withstand excessive workplace hardships to remain in the profession’ (Margolis, Hodge, and Alexandrou 2014, 1). We established such a view in the Introduction of The New Lives of Teachers (Day and Gu, 2010), and this view permeates almost every page of the book:
Ground-based variability surveys towards Centaurus A: worthwhile or not?

Context. Difference imaging has proven to be a powerful technique for detecting and monitoring the variability of unresolved stellar sources in M 31. Using this technique in surveys of galaxies outside the Local Group could have many interesting applications. Aims. The goal of this paper is to test difference imaging photometry on Centaurus A, the nearest giant elliptical galaxy, at a distance of 4 Mpc. Methods. We obtained deep photometric data with the Wide Field Imager at the ESO/MPG 2.2 m at La Silla spread over almost two months. Applying the difference imaging photometry package DIFIMPHOT, we produced high-quality difference images and detected variable sources. The sensitivity of the current observational setup was determined through artificial residual tests. Results. In the resulting high-quality difference images, we detect 271 variable stars. We find a difference flux detection limit corresponding to m(R) similar or equal to 24.5. Based on a simple model of the halo of Centaurus A, we estimate that a ground-based microlensing survey would detect in the order of 4 microlensing events per year due to lenses in the halo. Conclusions. Difference imaging photometry works very well at the distance of Centaurus A and promises to be a useful tool for detecting and studying variable stars in galaxies outside the local group. For microlensing surveys, a higher sensitivity is needed than achieved here, which would be possible with a large ground-based telescope or space observatory with wide-field imaging capabilities.
Path-creation method to search for persons using a flying robot

This paper proposes a path-creation method for flying robots to search for persons. The method is based on an appearance-based identification algorithm applied to the images obtained from the sky. A flying robot is a holonomic mobile; it can move in all directions, and the number of paths is infinite. The person identification was performed effectively by choosing the path suitable for the identification from within those combinations. The proposed method can create an efficient path to identify multiple persons accurately. All of the candidate paths that the flying robot can fly were estimated, then the evaluation scores of candidate paths were calculated by cumulating the identification results of multiple persons. The candidate path with the maximum evaluation score was selected. The effectiveness of the method was confirmed via simulation. The path for 1-3 persons who were within a zone of 50 m × 50 m was obtained. The time for one path segment was five seconds. Simulation of multiple path creations for the same persons was performed. Obtaining a result when there was a prior simulation was confirmed. In the simulation, the flying robot flew at a constant height of 3 m and moved at a constant speed of 30 km/h. During movement, the orientation of the camera mounted on the robot was assumed to be fixed. The camera was assumed to be a generic camera with VGA and 1 frame per second. One path creation required approximately one minute (Intel Core i7 CPU).
Endocytosis of the ASGP receptor H1 is reduced by mutation of tyrosine- 5 but still occurs via coated pits

The clustering of plasma membrane receptors in clathrin-coated pits depends on determinants within their cytoplasmic domains. In several cases, individual tyrosine residues were shown to be necessary for rapid internalization. We have mutated the single tyrosine at position 5 in the cytoplasmic domain of the major subunit H1 of the asialoglycoprotein receptor to alanine. Expressed in fibroblasts cells, the mutant protein was accumulated in the plasma membrane, and its rate of internalization was reduced by a factor of four. The residual rate of endocytosis, however, was still significantly higher than that of resident plasma membrane proteins. Upon acidification of the cytoplasm, which specifically inhibits the formation of clathrin-coated vesicles but not uptake of the fluid phase marker Lucifer yellow, residual endocytosis was blocked. By immunoelectron microscopy mutant H1 could be directly demonstrated in coated pits. The fraction of wild-type and mutant H1 present in coated pits as determined by immunogold localization correlated well with the respective rates of internalization. Thus, mutation of tyrosine-5 only partially inactivates recognition of H1 for incorporation into coated pits.
Science or Snake Oil? Teaching Critical Evaluation of “Research” Reports on the Internet

The proliferation of information on the Internet introduces new challenges for educators. Although the Internet can provide quick and easy access to a wealth of information, it has virtually no quality control. Consequently, the Internet has rendered faculty more essential than ever as teachers of the analytic and evaluative skills students need to become educated consumers of information. In this article we describe an exercise using small-group discussion and individual problem-based learning to teach critical thinking about the Internet. Data from the exercise and from student evaluations support both its need and students' perceptions of its effectiveness.
Learning to negotiate network relations: social support among working mothers living in poverty

This study promotes our understanding of the complex and dynamic role that social support networks play in the everyday life of working mothers living in poverty, by focusing on the processes of negotiation involved in the creation, maintenance and mobilization of social ties. It is based on semi-structured interviews with 12 Israeli-Jewish working mothers who participated in an economic empowerment workshop. Findings indicate that the participants received much social support from relatives, friends and community activists. However, they further reveal the hard hidden work of negotiation and the process of learning involved in obtaining support. Particularly important in this context of poverty was the need to learn how to ask for support by overcoming feelings of shame and concerns about respectability, and to reduce social burdens by, among other things, refusing to participate in the ‘gift economy’ and limiting constraining social relationships. Finally, this study shows how the seemingly divergent interpretations of negotiation in social-exchange theory and symbolic interactionism (reaching an agreement that maximizes benefits versus preserving the relationship) often converge in everyday life situations.
Counselling psychology and schizophrenia: A critical discursive account

Objectives: The diagnosis of schizophrenia does not feature prominently in counselling psychology literature, and there is a distinct lack of empirical research pertaining to how counselling psychologists construct this diagnosis, as well as accounts of their experiences of working with this client group. This study aimed to explore how counselling psychologists in working with schizophrenia, experience the work and construct the diagnosis. Design: A social constructionist branch of discourse analysis known as critical discursive psychology was adopted as the researchers were interested in the organisation of talk, as well as the social and culturally resonant interpretative resources the participants draw upon in research. Method: A version of discourse analysis known as ‘critical discursive psychology’ is used to analyse how eight counselling psychologists talk about and around the diagnosis of schizophrenia in semi-structured interviews. Results: Three main interpretative repertoires will be expanded on in relation to the analysis; Relating to the Individual's Experience; The Therapeutic Relationship – The Contrarian Subject Position and Normalising the Experience – The Egalitarian Subject Position. Conclusion: These findings suggest that although counselling psychologists construct their experiences of working with individuals diagnosed with schizophrenia in a ‘relational’ way (e.g. through relating to the individual's experience and normalising the experience), the dangers of using language that pathologises is always present. This paper concludes with noting the inroads that have been made into an area where counselling psychology has been traditionally underrepresented, and what type of influence this will have on counselling psychology in the future.
Labour migration and National Human Resource Development in the context of post-Soviet Kyrgyzstan

The purpose of this research was to investigate the developmental impact of labour migration in post-Soviet Kyrgyzstan in the context of National Human Resource Development (NHRD). Several theoretical propositions, ranging from personal experiences of migrant workers to their remittances and new skills acquired in migration, were identified before the data collection. A case study design with qualitative data was used in this research. Interview analyses of 14current migrant workers in Russia and 14 returnees in Kyrgyzstan revealed thefollowing categories: challenges and benefits of migration; developing new skills; use of remittances; reasons to return; employment or self-employment; remittances as investment and government assistance for returnees' business activities. Based on the research findings, it was concluded that labour migration has developmental impact that falls under the NHRD framework. This is especially prominent in regard to remittances and new skills that migrant workers brought back to Kyrgyzstan.
Analysis of the Heterogeneity of the Binding Site Specificities of Hyperimmune Human Anti‐A and ‐A,B Sera: The Application of Competition Assays Using Murine Monoclonal Antibodies

Abstract. Monoclonal antibodies PL41 and AL62 have previously been shown to recognize two distinct blood group A epitopes on the red cell surface. Competitive inhibition of the binding of 125I‐PL41 and 125I‐AL62 to group A1 red cells, by hyperimmune polyclonal human antibodies, has been employed to investigate the binding site specificities of 15 anti‐A and 8 anti‐A,B sera. Differences in the degree of inhibition of the binding of the two MABs by individual anti‐A or ‐A,B samples indicate that polyclonal reagents are composed of varying proportions of up to 3 (or more) different antibody specificities, each recognizing a distinct epitope: PL41‐like, AL62‐like and a third (as yet undefined) category of antibody. In general, those anti‐A sera with PL41‐like specificities are superior agglutinators of A2B cells with weakly expressed A antigens; similarly, the specificity of potent anti‐A,B sera capable of strongly agglutinating Ax cells was likewise directed towards PL41‐binding blood group A trisaccharide haptens.
Positivity preserving finite element approximation

We consider finite element, operators defined on "rough" functions in a bounded polyhedron Ω in RN. Insisting on preserving positivity in the approximations, we discover an intriguing and basic difference between approximating functions which vanish on the boundary of Ω and approximating general functions which do not. We give impossibility results for approximation of general functions to more than first order accuracy at extreme points of Ω. We also give impossibility results about invariance of positive operators on finite element functions. This is in striking contrast to the well-studied case without positivity.
Energy Consumption of Content Distribution from Nano Data Centers versus Centralized Data Centers

Energy consumption of nano data centers has recently been a topic of interest as they emerge as a novel computing and storage platform. We present end-to-end energy consumption models for nano data centers and its centralized counterpart. To assess the energy consumption of nano and centralized data centers, we propose flowbased and time-based energy consumption models for shared and single user network equipment. To evaluate our models, a set of measurements and practical experiments are performed. Our results indicate that nano data centers might lead to energy savings depending on various factors such as location of nano servers, type of access network attached to nano servers, and the ratio of active time to idle time of nano servers. Thus, nano data centers can complement centralized ones and lead to savings energy if certain applications are off-loadable from centralized data centers.