Miracle-dz/UniFAR-FTUs huggingface dataset:
Obstacle Detection and Trajectory Estimation in Vehicular Displacements based on Computational Vision

Obstacle detection and trajectory estimation in vehicular environments is an open problem in autonomous vehicles development. The automotive industry has made signiﬁcant progress in research and development of tools; however, there are still challenges to overcome and opportunity areas to be exploited in order to achieve full autonomy in vehicles. This paper presents an analysis of diﬀerent methods proposed for obstacle detection and trajectory estimation, leading into a proposal of solution for solving the problem of trajectory estimation based on computer vision techniques. This proposal covers the context of traﬃc environments in Latin America, where basic signage (such as the dividing lines of the road) is absent or not easily visible, among other typical characteristics of countries (like Mexico and others) where the infrastructure for maintaining safe road conditions (speedbumps, potholes) is limited.
Hematological and biochemical studies on hemodylitic patients at the Government General Hospital, Wadi Al-Dawaser

<p class="abstract"><strong>Background:</strong> Renal failure is a slowly progressive disease of kidney, characterized by low glomerular filtration. One of the most important replacement therapy of renal failure is hemodialysis which helping in the removal of toxic fluids and metabolic end products from the body. </p><p class="abstract"><strong>Methods:</strong> This study was carried out on 43 patients with renal failure in the dialysis unit of Wadi Al-Dawaser General Hospital. Patients were 25 males and 18 females, randomly selected for the study between September and November 2018. Blood samples were obtained from all patients pre and post dialysis for serum biochemical analysis including kidney function test, liver function, lipid profile, glucose, electrolytes, while blood sample with anticoagulants collected pre dialysis for complete blood picture. </p><p class="abstract"><strong>Results:</strong> The hemogram parameters recorded significant decrease while leuckogram insignificantly increase specially eosinophils, in pre-dialysis patients. Serum biochemical parameters were significantly high pre-dialysis recorded 83.7%, 97.7%, 21% for urea, creatinine and uric acid respectively, while significantly decrease post dialysis. In contrast serum glucose and magnesium levels were significantly high pre and post dialysis. As result of decrease of the erythropoietin production in chronic renal failure patients lower hematological indices, increase the risk of anemia are main results. </p><p class="abstract"><strong>Conclusions:</strong> Dialysis improve the biochemical parameters of serum especially creatinine and urea while glucose and magnesium not improved. </p><p class="abstract"> </p>
Amplification Automatique de Tests Unitaires pour DevOps

Au cours des dernieres annees, les tests unitaires sont devenus un element essentiel de tout projetlogiciel serieux afin de verifier son bon fonctionnement.Cependant, les tests sont fastidieux et couteux pour l'industrie: il est difficile d'evaluer le retour surinvestissement.Pour surmonter ce probleme, la recherche etudie l'automatisation de la creation de tests.Meme si ces suites de tests generees automatiquement ont une tres bonne qualite, il existe toujours desobstacles a l'adoption de telles techniques par l'industrie.Cela s'explique par les difficultes a comprendre, integrer et gerer la suite de tests generee.L'objectif de cette these est de remedier a ces difficultes en proposant une nouvelle technique quiproduit des nouveaux tests bases sur les tests existants. Cette technique s'appelle "amplification detests". Par construction, ces nouveaux tests sont donc proches des tests ecrits par des humains, et doncsont faciles a comprendre, a integrer et a gerer. Cette approche est implementee sous forme d'un outilappele DSpot.
Dynamic Bus Voltage Reconfiguration in a Two-Stage Multiphase Converter for Fast Transient

This article proposes a dynamic bus voltage transition method in a two-stage multiphase buck converter for 48-V-to-point-of-load (PoL) applications. The proposed topology uses a bank of precharged switching capacitors at the output of the first-stage buck converter. This configuration helps to achieve an immediate intermediate bus voltage transition while supplying a (second-stage) multiphase buck converter. This can substantially speed up a large-signal transient recovery by adjusting the bus voltage to its highest voltage level. Thereafter, near steady state, the bus voltage is set to its (lower) optimum value for improving the overall efficiency of the two-stage architecture. A higher bus voltage can reduce the output capacitance for the second-stage while retaining the (voltage) undershoot within the desired limit, which can reduce recovery time and current overshoot during a step-reference transient. The first stage operates in the open loop, while the second stage uses mixed-signal current mode control using a field-programmable gate array (FPGA) device. A hardware prototype of the proposed architecture is made, and an improved performance is demonstrated using simulation and experimental results.
Influencing factors and outcomes of entrepreneurial activities in German healthcare organizations – a qualitative study

ABSTRACT Demographic, societal and medical-technical changes together with a continuous cost increase propose substantial challenges to healthcare systems. To mitigate the persistent challenges, we propose solutions offered by entrepreneurial activities and innovative forces. Entrepreneurial activities are a key element of economic performance and are vital to ensure a sustainable healthcare system. However entrepreneurial development proceeds slowly in the healthcare sector. Based on the concept of Entrepreneurial Orientation (EO), which regularly is described by the dimensions innovativeness, proactiveness and risk-taking, we developed relevant knowledge by interviewing selected experts in German healthcare organizations. To find out more about obstacles and stimuli of entrepreneurial activities, data collection focused on respective influencing factors. Furthermore, outcomes of entrepreneurial activities were investigated. The data were analysed using qualitative content analysis. Ultimately it is shown that governmental and intra-organizational regulation frequently impedes entrepreneurial activities. Stimuli of entrepreneurial activities may derive from the market environment and competitive constraints, financial incentives, technological and social development, autonomy of involved actors, and an entrepreneurial and collaborative mindset of healthcare leaders, policy makers and employees. If entrepreneurial activities were undertaken, they regularly aim to improve quality and efficiency of healthcare. Therefore, it is vital to create an entrepreneurial environment to ensure innovative developments.
“If they have more work, they learn more”: parents’ views of their children’s learning experiences and homework in Pre-K settings

ABSTRACT This study examined parents’ perspectives on children’s learning in Pre-K, their expectations for Pre-K, and how to prepare their child(ren) for kindergarten. Researchers conducted semi-structured interviews with 22 ethnically diverse parents from 8 schools in New York City. This paper presents a thematic analysis of these interviews. Findings revealed parents believed children’s academic learning should be the focus for kindergarten readiness, with an emphasis on language and literacy and mathematics. They frequently mentioned homework as a hands-on activity that promotes children’s learning. With the continued increase in funding and attention to Pre-K, there needs to be a greater understanding of how parents conceptualize kindergarten readiness and structure learning experiences for children, and how Pre-K curriculum is changing extended learning. Parents’ views should be considered in decision-making around programming with regard to daily instruction, as well as facilitating the transition to elementary school.
A Tentative Staging of Multiple Myeloma by Utilizing Respective Coefficients of Prognostic Factors

Multiple myeloma (MM) is considered to be the second most common hematologic cancer [1]. Different staging systems have been proposed for risk stratification of MM. However, current staging systems have limitations and therefore are in the process of developing. A suitable staging system should consist of a reliable method of prognosis prediction based on widely obtained, reproducible parameters, and segregate patients into roughly equal groups [2]. The proposed staging method of this study fulfills these criteria. One major problem in current staging systems is the different number of cases in each stage, especially in revised international staging system (R-ISS) [3, 4]. Furthermore, main prognostic factors in MM consist of continuous variables that are generally grouped as a single prognostic parameter. For instance, in a group of cases where albumin concentrations are less than 3.5 g/dL, different albumin values that are classified under the same group, i.e., albumin < 3.5 g/dL group may be related to different prognosis. According to Bradburn et al. [5], one simple and possibly underused quantity for a given risk group is gamma value that is derived from the proportional Abstract Introduction: Multiple myeloma is a heterogeneous disease with different survival times among patients. Accurate prediction of prognosis in multiple myeloma is essential, as patients with a shorter survival time may require early bone marrow transplantation (BMT) and more advanced chemotherapy as a part of their first-line treatment. In the present study, a parameter, depicted by gamma (γ) symbol, was utilized to categorize patients into different stages. Gamma value is equal to the summation of each prognostic factor multiplied by its corresponding beta coefficient. This parameter has been previously studied for the staging of some malignancies, such as “Nottingham Prognostic Index” for breast cancer and “Prognostic Score” for parotid carcinoma. Methods: One hundred forty-three cases were randomly divided into two groups. Beta coefficients for prognostic factors, including creatinine, calcium, and albumin, were obtained from multivariate Cox analysis in the first group. In this group, a staging system based on patients’ gamma parameters was defined followed by the evaluation of the accuracy of this staging system in the second group. Results: The staging system that developed from the first group was suitable for the prediction of outcomes in the second group. The patients of the second group were divided into approximately equal numbers in each stage comprising 29, 24, and 18 cases in stage 1, 2, and 3, respectively. In this group, the median overall survival (OS) values for patients in each stage were 92, 57, and 22 months, respectively, with log-rank = 0.002. Conclusions: The proposed method demonstrated promising results for myeloma prognostication. The authors believe this approach would increase the strength and validity of staging of multiple myeloma.
A guide to supramolecular polymerizations

Supramolecular polymers or fibers are non-covalent assemblies of unimeric building blocks connected by secondary interactions such as hydrogen bonds or π–π interactions. Such structures hold enormous potential in the development of future materials, as their non-covalent nature makes them highly modular and adaptive. Within this review we aim to provide a broad overview over the area of linear supramolecular polymers including the different mechanisms of their polymerization as well as methods essential for their characterization. The different non-covalent interactions able to form supramolecular polymers are discussed, and key examples for each species are shown. Particular emphasis is laid on the development of living supramolecular polymerization able to produce fibers with a controlled length and low length dispersity, and even enable the production of supramolecular block copolymers. Another important and very recent field is the development of out-of-equilibrium supramolecular polymers, where the polymerization process can be temporally controlled enabling access to highly adaptive materials.
Application of K-MTh Algorithm for Accurate Lunge Cancer Detection

The primary goal of this paper is how to detect the lung cancer tumor based on the K-means clustering thresholding (K-MTh) segmentation technique, rate of death from lung cancer diseases is increased in the last years so the discovered of lung cancer early can protect a lot of people from died . The technique of image processing is utilized ,in image processing ,there are a lot of steps are done for improving the performance of medical diagnostic machine . The technique which used is considered very important to classify the degree of a tumor by improving the thresholding technique before using the classification methods such as support vector machine (SVM). Actually, we have applied Gabor Gaussian filtration method to improve and denoise the CT-image, then we applied the segmentation method (K-MTh) and SVM. Finally, the system has been achieved accuracy more than have been expected for classification method after applying K-MTh (more than 90%).
Ruta graveolens: from Traditional System of Medicine to Modern Pharmacology: an Overview

The family of Rutaceae contains extremely wide variety of aromatic plants, mainly in tropical regions. Among them the rich is the genus Ruta. It is now cultivated in many parts of the world. This plant is considered indigenous in South Europe and North Africa and it grows on waste stony ground. Rue (Ruta graveolens) has been used for centuries as a medical preparation and has a variety of roles, probably because of its varied chemical composition. This plant is commonly cultivated in India and is commonly called as sudab or sadab. In traditional system of medicine it is used as stimulant, emmenagogue, diuretic, abortefacient, and resolvent. Detailed and comparative studies from its traditional use especially with reference to Unani system of Medicine, to the modern scientific reports have been evaluated in this paper.
The Importance of Positive Diagnosis in Work with Disabled People – Theoretical Reflection from a Psychopedagogical Perspective

In the article, the author presents the basic assumptions of positive diagnosis that can be used in work with the disabled. It assumes that one of the most important factors determining the effectiveness of the development support process is a correctly implemented diagnostic process, immanently linked to helping disabled people integrate into the social world and overcome developmental problems resulting from their disability. In the positive approach to diagnosis proposed by the author, various categories of the diagnostic description of a person and their environment are important, such as multidimensionality (various spheres of functioning), continuity (development process in the full life cycle), orientation of individual development (prosocial, pro-development vs. developmentally destructive), and, above all, the need to discover one’s resources (potentials). The author also presents the process and models of supporting the development of people with disabilities.This approach locates the processes of diagnosis and help in the basic paradigm of positive psychology (salutogenesis), focusing on the self-creation and social integration of individuals with disability, while at the same time, stressing the need to identify the potential of the individual (positive diagnosis).
Identifying and addressing sexual health in serious mental illness: views of mental health staff working in two NHS organisations in England

People with serious mental illness (service users) have needs related to sexual health and sexuality, yet these have been poorly addressed in mental health services. This article reports the current practice of mental health professionals in relation to sexual health. Focus groups conducted in two mental health trusts explored routine practice in relation to discussing, assessing and planning care in relation to sexual health. A thematic analysis identified seven themes: sexual health provision is a complex issue; mental health staff are aware of sexual health needs; current provision regarding sexual health is “neglected”; barriers to sexual health provision; enabling a discussion around sexual health; sexual health provision is a role for mental health professionals; and training needs. Mental health staff are aware of complex issues related to sexual health for service users but this is mainly seen through the lens of risk management and safeguarding. We need to develop the mental health workforce to be able to incorporate sexual health into routine healthcare.
Perceived constraint and negotiation of Chinese outbound senior tourists

Senior tourists often face more travel barriers than non-seniors due to deteriorating health and mobility (Fleischer & Pizam, 2002), especially in long-haul travel. However, they may apply negotiation strategies to overcome constraints (Kay & Jackson, 1991). Exploring seniors’ travel constraints and negotiation strategies is essential to understanding their tourism participation. Researchers have sought to illustrate such constraints, including the following: the complexity of travel decisions, poor health, high travel expenses, and limited time (Fleischer & Pizam, 2002; Kazeminia, Del Chiappa, & Jafari, 2015; Nyaupane, McMabe, & Andereck, 2008). Identified negotiation strategies include reducing physical exertion, purchasing travel health insurance, or visiting feasible destinations (Kazeminia et al., 2015; Nimrod, 2008). However, relevant research has been mostly exploratory. Considering the physical and psychological requirements of overseas travel, senior tourists’ perceived constraints and negotiation strategies in this respect remain ambiguous. From a marketing perspective, ageing is a worldwide phenomenon and proves to be a significant transitional force influencing the global travel industry. In China, approximately 241 million Chinese citizens (17.3% of the population) were older than 60 in 2017; this figure is expected to increase to 35% of the population by 2050 (The China National Committee on Aging (CNCA), 2019). Psychology and sociology scholars have studied China’s ageing society paying close attention to ‘empty nesters’ (Cao & Lu, 2018) and symptoms of anxiety, depression, and loneliness (Fang et al., 2019). Studies have indicated that tourismmay influence senior tourists’ physical andmental states (e.g., Coughlan, 2015). Regarding ageing-related social issues, research has shown that vacations boost travellers’ physical and psychological wellbeing (Smith & Diekmann, 2017). Senior travellers, compared with non-travellers of the same age, may feel better about themselves when enjoying leisure activities (Wei & Milman, 2002). However, the tourism industry does not seem to fully understand the implications of global ageing, particularly vis-à-vis China’s rapidly ageing society. After reviewing the literature, we found a void of knowledge base regarding Chinese seniors’ travel constraints and negotiations in outbound tourism. This study aims to identify Chinese seniors’ perceived constraints and negotiation strategies in outbound travel. It provides insights towards a better understanding of the emerging Chinese senior travel market in the global ageing context.
Children's multilingualism and teaching French as a foreign language in a primary classroom in England

In England, schools are now required to introduce a foreign language at primary level, necessitating class teachers to teach a language in which they may have little to no experience. At the same time, many catchment areas boast high percentages of children who are fluent in more than one language. The rising number of multilingual children in England’s schools in recent decades suggests that this could impact on the classroom, particularly when it comes to teaching foreign languages. However, few studies have specifically addressed multilingualism in the primary school’s foreign language lesson. There has been little discussion about teachers who are inexpert in regard to the relevant subject knowledge and the difficulties they may face. This study aims to investigate the role of children’s multilingualism when being taught French as a foreign language in a Key Stage 2 primary school classroom by a teacher with limited knowledge of French. The study adopts an ethnographic approach employing observations, interviews and language diagrams for data collection within a single classroom of thirty pupils, all multilingual. Findings suggest that the teacher’s language limitations and approach to teaching may have a bearing on the classroom dynamics, specifically, the reversal of the assumed expert-novice roles, and what I refer to as windows of opportunity - for teachers and schools as well as for policy. The findings also suggest that the children perform their identities differently according to situation. While children could benefit from their multilingualism, it was found that they have reduced possibilities for using all languages at their disposal at school compared to home and community. The study could contribute to a better understanding of multilingualism in the mainstream classroom and may offer ideas for finding ways in which children’s multilingualism can contribute to the learning process within the foreign language classroom.
A Multimodal Intervention for Improving the Mental Health and Emotional Well-being of College Students

This study examined the effectiveness of a 10-week multimodal intervention for improving the mental health and emotional well-being of college students when included as a mandatory component of the students’ course of study. A total of 67 students (20.9 ± 5.4 years, 30 male/37 female) participated in the intervention that introduced a variety of evidence-based strategies for improving mental health and emotional well-being from the Lifestyle Medicine and Positive Psychology literature. Significant reductions were recorded in symptoms of depression (−28%, P < .05), anxiety (−31%, P < .05), and stress (−28%, P < .01), whereas significant improvements were observed in mental health (18%, P < .01), vitality (14%, P < .01) and overall life satisfaction (8%, P < .05). Effect sizes were larger than those reported by studies that have examined the individual effectiveness of the strategies incorporated into the intervention, suggesting a compounding effect. Stratified analyses indicated that participants with the lowest measures of mental health and emotional well-being at baseline experienced the greatest benefits. The findings of the study suggest that meaningful improvements in the mental health and emotional well-being of college students can be achieved, and potentially magnified, by utilizing a multidisciplinary approach involving evidence-based strategies from Lifestyle Medicine and Positive Psychology.