Étude Longitudinale de la Santé Mentale chez les Étudiants Primo-Inscrits de l’Université de Sfax

Intérêt et objectif de l’étude : Notre étude vise à évaluer la santé psychologique chez les étudiants primo-inscrits de l’université de Sfax et d’identifier certains facteurs psychosociaux qui peuvent impacter leur santé. Méthodes : Il s’agit d’une étude longitudinale qui s’est déroulée sur deux temps. Notre échantillon est composé de 344 étudiants primo-inscrits dans des filières scientifiques et littéraires qui ont été sollicités au début et à la fin de l’année universitaire 2017-2018. Seulement 252 étudiants ont participé à la deuxième étape de la recherche. Des échelles ont été traduites en arabe pour répondre aux objectifs de la recherche. Résultats : Les données indiquent que 42.7% des étudiants interrogés présentent des signes de détresse psychologique. Nos résultats révèlent que plusieurs facteurs sont associés à cette détresse d’une manière statistiquement significative, à savoir la satisfaction des conditions socio-économiques, le choix de la filière (subi ou délibéré) et la satisfaction du soutien social et des conditions de l’hébergement au campus universitaire. Certains facteurs transactionnels sont corrélés d’une manière significative à notre variable dépendante «la santé psychologique », à savoir le stress perçu et les stratégies d’ajustement et avec certains facteurs de personnalité comme l’estime de soi, le névrosisme et l’espoir. L’analyse de régression multiple indique que l’estime de soi et le névrosisme expliquent, respectivement à 31% et à 7%, la variance santé psychologique. Les résultats de l’étude longitudinale montrent l’amélioration générale de l’état de santé des étudiants interrogés lors du deuxième moment de l’étude avec un impact statistiquement significatif des facteurs de l’estime de soi et du coping centré sur la résolution des problèmes et l’espoir Conclusion :Un travail d’accompagnement psychologique centré sur les facteurs de protection s’avère plus que nécessaire pour éviter le basculement de cette détresse dans des troubles psychiatriques.   Interest and objective of the study: Our study aims to assess the psychological health of first-time students enrolled at the University of Sfax and to identify certain psychosocial factors that can impact their health. Methods: This is a longitudinal study that took place over two periods. Our sample is made up of 344 first-time students enrolled in science and literature courses who were contacted at the beginning and end of the 2017-2018 academic year. Only 252 students participated in the second stage of the research. Scales were translated into Arabic to meet the research objectives. Results: The data indicate that 42.7% of the students surveyed show signs of psychological distress. Our results reveal that several factors are associated with this distress in a statistically significant way, namely the satisfaction of socio-economic conditions, the choice of the sector (submitted or deliberate) and the satisfaction of social support and the conditions of the school. accommodation at the university campus. Some transactional factors are significantly correlated with our dependent variable “psychological health”, namely perceived stress and coping strategies and with some personality factors such as self-esteem, neuroticism and hope. . Multiple regression analysis indicates that self-esteem and neuroticism explain, respectively, 31% and 7%, of the psychological health variance. The results of the longitudinal study show the general improvement in the state of health of the students questioned during the second moment of the study with a statistically significant impact of the factors of self-esteem and coping centered on the resolution of problems. problems and hope. Conclusion: Psychological support work centered on protective factors is more than necessary to avoid the tipping of this distress into psychiatric disorders

Étude Longitudinale de la Santé Mentale chez les Étudiants Primo-Inscrits de l’Université de Sfax

Intérêt et objectif de l’étude : Notre étude vise à évaluer la santé psychologique chez les étudiants primo-inscrits de l’université de Sfax et d’identifier certains facteurs psychosociaux qui peuvent impacter leur santé. Méthodes : Il s’agit d’une étude longitudinale qui s’est déroulée sur deux temps. Notre échantillon est composé de 344 étudiants primo-inscrits dans des filières scientifiques et littéraires qui ont été sollicités au début et à la fin de l’année universitaire 2017-2018. Seulement 252 étudiants ont participé à la deuxième étape de la recherche. Des échelles ont été traduites en arabe pour répondre aux objectifs de la recherche. Résultats : Les données indiquent que 42.7% des étudiants interrogés présentent des signes de détresse psychologique. Nos résultats révèlent que plusieurs facteurs sont associés à cette détresse d’une manière statistiquement significative, à savoir la satisfaction des conditions socio-économiques, le choix de la filière (subi ou délibéré) et la satisfaction du soutien social et des conditions de l’hébergement au campus universitaire. Certains facteurs transactionnels sont corrélés d’une manière significative à notre variable dépendante «la santé psychologique », à savoir le stress perçu et les stratégies d’ajustement et avec certains facteurs de personnalité comme l’estime de soi, le névrosisme et l’espoir. L’analyse de régression multiple indique que l’estime de soi et le névrosisme expliquent, respectivement à 31% et à 7%, la variance santé psychologique. Les résultats de l’étude longitudinale montrent l’amélioration générale de l’état de santé des étudiants interrogés lors du deuxième moment de l’étude avec un impact statistiquement significatif des facteurs de l’estime de soi et du coping centré sur la résolution des problèmes et l’espoir Conclusion :Un travail d’accompagnement psychologique centré sur les facteurs de protection s’avère plus que nécessaire pour éviter le basculement de cette détresse dans des troubles psychiatriques.   Interest and objective of the study: Our study aims to assess the psychological health of first-time students enrolled at the University of Sfax and to identify certain psychosocial factors that can impact their health. Methods: This is a longitudinal study that took place over two periods. Our sample is made up of 344 first-time students enrolled in science and literature courses who were contacted at the beginning and end of the 2017-2018 academic year. Only 252 students participated in the second stage of the research. Scales were translated into Arabic to meet the research objectives. Results: The data indicate that 42.7% of the students surveyed show signs of psychological distress. Our results reveal that several factors are associated with this distress in a statistically significant way, namely the satisfaction of socio-economic conditions, the choice of the sector (submitted or deliberate) and the satisfaction of social support and the conditions of the school. accommodation at the university campus. Some transactional factors are significantly correlated with our dependent variable “psychological health”, namely perceived stress and coping strategies and with some personality factors such as self-esteem, neuroticism and hope. . Multiple regression analysis indicates that self-esteem and neuroticism explain, respectively, 31% and 7%, of the psychological health variance. The results of the longitudinal study show the general improvement in the state of health of the students questioned during the second moment of the study with a statistically significant impact of the factors of self-esteem and coping centered on the resolution of problems. problems and hope. Conclusion: Psychological support work centered on protective factors is more than necessary to avoid the tipping of this distress into psychiatric disorders

Does Basel compliance matter for bank performance?

The global financial crisis underscored the importance of regulation and supervision to a well-functioning banking system that efficiently channels financial resources into investment. In this paper, we contribute to the ongoing policy debate by assessing whether compliance with international regulatory standards and protocols enhances bank operating efficiency. We focus specifically on the adoption of international capital standards and the Basel Core Principles for Effective Bank Supervision (BCP). The relationship between bank efficiency and regulatory compliance is investigated using the Simar and Wilson (2007. J. Econ. 136 (1), 31) double bootstrapping approach on an international sample of publicly listed banks. Our results indicate that overall BCP compliance, or indeed compliance with any of its individual chapters, has no association with bank efficiency

PARAMETERS OPTIMIZATION OF SPRINGBACK INSHEET METAL FORMING BY RESPONSE SURFACE METHOD OPTIMISATION DES PARAMETRES DU RETOUR ELASTIQUE ENEMBOUTISSAGE DE TOLES PAR LA METHODE DE SURFACE DE REPONSE

This paper deals with the optimization of Sheet Metal Forming parameters in order to reduce defect of springback which occur at the end of process. We propose a specific methodology based on the coupling between the one-step Inverse Approach as a surrogate model for the rapid simulation of sheet forming process, and a Response Surface Method based on diffuse approximation. The response surfaces are built using Moving Least Squares approximations constructed within a moving region of interest. Application of the sheet metal forming process is used to demonstrate the robustness of the method. The final design is validated with Stampack®and Abaqus®commercial codes based respectively on Explicit Dynamic and Implicit Static Approaches. Cet article traite de l'optimisation des paramètres d’emboutissage de tôles afin de réduire le défaut du retour élastique qui se produit à la fin du procédéaprès retrait des outils. Nous proposons une méthodologie spécifique basée sur le couplage entre l’approche inverse pour lasimulation rapide du procédé d’emboutissage de tôles, etla Méthodede surface de réponse basée sur l’approximation diffuse. Les surfacesde réponse sont obtenues en utilisantune approximation par moindre carrée mobile construites dans un domaine d'influencemobile. Une application du procédé d’emboutissage de tôles est utilisée pour démontrer la robustesse de la méthode. La forme finale est validéeà l’aide des codes commerciauxStampack®et Abaqus®basés sur les approches Explicit Dynamique et Implicite Statique respectivement.

Applications of microsatellite markers for the characterization of olive genetic resources of tunisia

Among the countries of the Mediterranean Basin, Tunisia is located at the crossroad for the immigration of several civilizations over the last two millennia, becoming a strategic place for gene flow, and a secondary center of diversity for olive species. Olive is one of the principal crop species in Tunisia and now it strongly characterizes the rural landscape of the country. In recent years, collecting missions on farm and in situ were carried out by various institutes, with special emphasis given to ex situ collections serving as a reference for the identification of olive germplasm. Simple Sequence Repeats (SSRs) represent the easiest and cheapest markers for olive genetic fingerprinting and have been the tool of choice for studying the genetic diversity of this crop in Tunisia, to resolve cases of homonymy and synonymy among the commercialized varieties, to identify rare cultivars, to improve knowledge about the genetic variability of this crop, to identify a hot spot of olive biodiversity in the Tunisian oasis of Degache, and to enrich the national reference collection of olive varieties. The present review describes the state of the art of the genetic characterization of the Tunisian olive germplasm and illustrate the progress obtained through the SSR markers, in individuating interesting genotypes that could be used for facing incoming problems determined by climate changes

Cystic echinococcosis in slaughtered domestic ruminants from Tunisia

A total of 10,818 domestic ruminants (3913 cattle, 2722 sheep, 3779 goats, 404 dromedaries) slaughtered in various abattoirs in Tunisia between 2003 and 2010 were examined for the presence of Echinococcus granulosus hydatid cysts. The prevalence of cystic echinococcosis (CE) was 16.42% in sheep, 8.56% in cattle, 5.94% in dromedaries and 2.88% in goats. CE prevalence increased with age according to an asymptotic model and there was evidence of variation in infection pressure depending on the region of Tunisia where the animals were slaughtered. Cattle appeared to have the highest infection pressure of the species examined. The mean intensity of hepatic cysts was higher than that of pulmonary cysts in all species. The highest mean intensity of infection with E. granulosus larvae was observed in cattle (18.14) followed by sheep (9.58), goats (2.31) and dromedaries (2.12). The abundance of infection increased in a linear fashion with age in all animal species. Cyst abundance varied with species of animal and district of Tunisia. Cysts from dromedaries were more fertile (44.44%) than those from sheep (30.25%), goats (30.32%) and cattle (0.95%). The viability of the protoscoleces from fertile cysts from cattle (78.45%) was higher than those from sheep (70.71%) and camels (69.57%). The lowest protoscolex viability was recorded for hydatid cysts from goats (20.21%). This epidemiological study confirms the importance of CE in all domestic ruminant species, particularly in sheep, throughout Tunisia and emphasizes the need to interrupt parasite transmission by preventive integrated approaches in a CE control programm

Copy number architectures define treatment-mediated selection of lethal prostate cancer clones

Despite initial responses to hormone treatment, metastatic prostate cancer invariably evolves to a lethal state. To characterize the intra-patient evolutionary relationships of metastases that evade treatment, we perform genome-wide copy number profiling and bespoke approaches targeting the androgen receptor (AR) on 167 metastatic regions from 11 organs harvested post-mortem from 10 men who died from prostate cancer. We identify diverse and patient-unique alterations clustering around the AR in metastases from every patient with evidence of independent acquisition of related genomic changes within an individual and, in some patients, the co-existence of AR-neutral clones. Using the genomic boundaries of pan-autosome copy number changes, we confirm a common clone of origin across metastases and diagnostic biopsies, and identified in individual patients, clusters of metastases occupied by dominant clones with diverged autosomal copy number alterations. These autosome-defined clusters are characterized by cluster-specific AR gene architectures, and in two index cases are topologically more congruent than by chance (p-values 3.07 × 10-8 and 6.4 × 10-4). Integration with anatomical sites suggests patterns of spread and points of genomic divergence. Here, we show that copy number boundaries identify treatment-selected clones with putatively distinct lethal trajectories

Slip and hall current effects on Jeffrey fluid suspension flow in a peristaltic hydromagnetic blood micropump

The magnetic properties of blood allow it to be manipulated with an electromagnetic field. Electromagnetic blood flow pumps are a robust technology which provide more elegant and sustainable performance compared with conventional medical pumps. Blood is a complex multi-phase suspension with non-Newtonian characteristics which are significant in micro-scale transport. Motivated by such applications, in the present article a mathematical model is developed for magnetohydrodynamic (MHD) pumping of blood in a deformable channel with peristaltic waves. A Jeffery’s viscoelastic formulation is employed for the rheology of blood. A twophase fluid-particle (“dusty”) model is utilized to better simulate suspension characteristics (plasma and erythrocytes). Hall current and wall slip effects are incorporated to achieve more realistic representation of actual systems. A two-dimensional asymmetric channel with dissimilar peristaltic wave trains propagating along the walls is considered. The governing conservation equations for mass, fluid and particle momentum are formulated with appropriate boundary conditions. The model is simplified using of long wavelength and creeping flow approximations. The model is also transformed from the fixed frame to the wave frame and rendered non-dimensional. Analytical solutions are derived. The resulting boundary value problem is solved analytically and exact expressions are derived for the fluid velocity, particulate velocity, fluid/particle fluid and particulate volumetric flow rates, axial pressure gradient, pressure rise and skin friction distributions are evaluated in detail. Increasing Hall current parameter reduces bolus growth in the channel, particle phase velocity and pressure difference in the augmented pumping region whereas it increases fluid phase velocity, axial pressure gradient and pressure difference in the pumping region. Increasing the hydrodynamic slip parameter accelerates both particulate and fluid phase flow at and close to the channel walls, enhances wall skin friction, boosts pressure difference in the augmented pumping region and increases bolus magnitudes. Increasing viscoelastic parameter (stress relaxation time to retardation time ratio) decelerates the fluid phase flow, accelerates the particle phase flow, decreases axial pressure gradient, elevates pressure difference in the augmented pumping region and reduces pressure difference in the pumping region. Increasing drag particulate suspension parameter decelerates the particle phase velocity, accelerates the fluid phase velocity, strongly elevates axial pressure gradient and reduces pressure difference (across one wavelength) in the augmented pumping region. Increasing particulate volume fraction density enhances bolus magnitudes in both the upper and lower zones of the channel and elevates pressure rise in the augmented pumping region