The impact of personality on scholarly performance in the light of intervening job of scholarly motivation

This examination and coming about commitment are the consequence of instructive motivation intervened in the relationship between receptiveness to experience, and measures with insightful performance. Based on the alternate elements (e.g., IQ, learning moves close and biological variables) can influence academic execution that can be broken down in future examinations.Purpose: This comparative study holistically assesses the effect of personality on scholastic motivation and scholarly performance. Design/Methodology/Approach: The contribution and the relevant methodology are based on an educational motivation interceded the association between openness to experience and standards with scholarly performance. The research sample consists of students who willfully participated and they were approached to finish a personality poll (NEO-FFI), and a scholastic motivation survey (AMS-C 28, included GPA and statistic information) on a pioneering critical comparative structural model. Findings: Based on the implied arguments and yielded results, the article considers the interceding role of scholastic motivation about personality and performance. The nature of these relations, can be a point of takeoff to assist inquires about this issue. Practical implications: Based on addressing its structural purposes, the study sheds a new light on the conscientiousness that predicts both intrinsic and extrinsic motivation. Earlier investigations show that there is a relationship between openness to involvement and insights. Originality/Value: Although this study builds upon recent studies about character, motivation and different factors can affect scholastic performance that can be analyzed in future investigations as an innovative idea for the harmonization in this field.peer-reviewe

How does investor sentiment affect stock market crises? Evidence from panel data

We test the impact of investor sentiment on a panel of international stock markets. Specifically, we examine the influence of investor sentiment on the probability of stock market crises. We find that investor sentiment increases the probability of occurrence of stock market crises within a one-year horizon. The impact of investor sentiment on stock markets is more pronounced in countries that are culturally more prone to herd-like behavior and overreaction or in countries with low institutional involvement. Results also suggest that investors' sentiment is not a reliable predictor of stock market reversal pointsInvestor sentiment ; stock market crises ; reversal points

Rheological and hygrothermal behaviors of composites reinforced with vegetable fibers

Le secteur de la construction consomme d’énormes quantités d’énergie non renouvelable. L’épuisement des ressources fossiles, l’émission excessive du carbone, le réchauffement climatique poussent les chercheurs à développer une nouvelle génération de matériaux de construction renouvelables et recyclables avec un faible impact environnemental. De ce fait, la mise en place de nouveaux matériaux de construction est bénéfique non seulement en termes de coûts et d’énergie, mais aussi en termes de réduction de la consommation des ressources naturelles et de fréquence d’extraction des matières premières. Parmi les matériaux alternatifs, on trouve les fibres naturelles. Ces dernières sont renouvelables, recyclables et présentent d'excellentes propriétés mécaniques et thermiques. De plus, ces fibres peuvent se substituer aux fibres de verre et de carbone dans de nombreux domaines d'application. En effet, l'industrie des fibres naturelles représente un secteur économique en pleine expansion vu les avantages que procurent ces fibres pour plusieurs secteurs de l’industrie (textile, automobile, bâtiment, etc.). Grâce à leur faible coût d'extraction, l'incorporation des fibres naturelles dans différents matériaux permet de créer un matériau bioéconomique et écologique avec une faible empreinte environnementale. Toutefois, l’association des fibres végétales à la matrice cimentaire présente une problématique à résoudre. En effet, les fibres végétales ont un important caractère hydrophile. Avec les cycles d’absorptions/désorptions, la géométrie des fibres varie, ce qui engendre une perte d’adhérence entre les fibres et la matrice cimentaire. De plus, certains constituants de la fibre, en l’occurrence les pectines fixent le calcium et engendrent un retard de l’apparition du gel de silicate de calcium hydraté C-S-H. Afin de comprendre le phénomène d’interaction entre les fibres végétales et la matrice cimentaire, il est important d’étudier les différents paramètres qui affectent le comportement des fibres végétales dans la matrice cimentaire. Ainsi, l’objectif principal de la thèse est d’étudier la faisabilité du développement des composites à partir des fibres végétales. Plus spécifiquement, cette étude vise à mettre en place des mortiers fibrés et hybrides destinés à des applications dans le bâtiment. Dans cette étude deux types de mortiers fibrés ont été formulés, un mortier de revêtement, et un autre destiné à l’isolation thermique. Les fibres végétales utilisées dans cette étude constituent une nouvelle variété de fibres extraite à partir des tiges de palmier dattier (PS) et des fibres de chanvre (HF). Avant leur usage comme des matériaux de renfort et/ou d’isolation, les fibres ont été sujettes à une large compagne de caractérisation. La morphologie, la résistance à la traction, la composition chimique, ainsi que les isothermes de sorption ont été mesurées. Une fois la partie de caractérisation achevée, les fibres végétales ont été sujettes à plusieurs traitements afin de réduire leur caractère hydrophile et de comprendre de près le problème de prise de la pâte cimentaire. Les résultats obtenus montrent que les fibres extraites à partir des tiges de palmier dattier possèdent une bonne résistance à la traction. Les traitements proposés dans cette étude ont permis à la fois de réduire le taux d’absorption des fibres et d’extraire les particules végétales présentes sur les fibres et responsables du retard de prise de la pâte cimentaire. D’un point de vue composite, la présence des fibres végétales augmente la résistance à la flexion des mortiers fibrés. De plus, les mortiers développés ont montré un bon comportement hygrothermique. Ces résultats montrent que l’utilisation de ce nouveau type de mortier propose une solution intéressante d’un point de vue économique, tout en assurant de bonnes propriétés hygrothermiques.Abstract: The construction sector consumes huge amounts of non-renewable energy. The depletion of material resources, excessive carbon emissions, and global warming are driving researchers to develop a new generation of renewable and recyclable building materials with low environmental impact. The introduction of new building materials is beneficial not only in terms of cost and energy, but also in terms of reduction and frequency of raw material extraction. Alternative materials include natural fibres. Natural fibres, have excellent mechanical and thermal properties. They are renewable and recyclable. These fibres can replace glass and carbon fibres in many areas of application. The natural fibre industry is a fast-growing economic sector because of the advantages of this type of fibre for all industrial sectors (textiles, automotive, construction, etc.). Thanks to their low extraction cost, the incorporation of natural fibres in different materials allows the creation of a bio-economic and ecological material with a low environmental impact. However, the association of vegetable fibres with the cementitious matrix presents a conundrum. Indeed, natural fibres have an important hydrophilic character. With absorption/desorption cycles, the geometry of the fibres varies, resulting in a loss of adhesion between the fibres and the cementitious matrix. In addition, vegetable fibres are made up of cellulose, hemicellulose, lignin and pectin etc. Some of these components of the fibre in their entirety are also found in the cement matrix. Some of the fibre constituents, in this case pectins, bind calcium and delay the appearance of the C-S-H hydrated calcium silicate gel. In order to better understand the phenomenon of interaction between vegetable fibres and the cement matrix, it is important to study the different parameters that affect the behaviour of fibre mortars (percentage of fibres, mixing sequence, setting delay, durability of fibres, etc.). Thus, the main objective of the thesis is to study the hydric and thermomechanical behaviour of fibre mortars. More specifically, this study aims to optimise the percentages of natural fibres used as reinforcement and/or insulation materials in fibre-reinforced mortars. Two types of fibre-reinforced mortars were formulated, a residual mortar and a second mortar intended for thermal insulation. The hydric and thermomechanical behaviour of the mortars were determined. In this study, the fibres used are a new variety of vegetable fibres extracted from date palm stems (PS). Prior to their use as reinforcement and/or insulation materials, the fibres were subjected to an extensive characterisation campaign. Morphology, tensile strength, chemical composition, percentage of amorphous and/or crystalline constituents of the fibres as well as sorption isotherms were measured. Once the characterisation part was completed, the vegetable fibres were subjected to several treatments in order to reduce their hydrophilic character and to extract the vegetable particles present on the fibres and responsible for the setting delay of the cementitious paste. As a reminder, commercial hemp fibres (HF) were used for comparison purposes. The specific objective of the fibre treatments is to reduce the setting delay of the cementitious paste, and to remove the vegetable particles present on the fibres and responsible for the setting delay of the cementitious paste. Once the treatments were completed, the sorption isotherms of the fibres were measured. The results obtained show that the fibres extracted from date palm stems have good tensile strength. The proposed treatments allowed both to reduce the absorption rate of the fibres and to extract the vegetable particles present on the fibres and responsible for the delay in the setting of the cement paste. From a composite point of view, the presence of vegetable fibres increases the flexural strength of the fibre mortars. In addition, the mortars developed have shown good hygrothermal behaviour. These results show that the use of this new type of mortar offers an interesting solution from an economical point of view, while ensuring good hygrothermal properties

Measuring Stock Market Investor Sentiment

Recently, investor sentiment measures have become one of the more widely examined areas in behavioral finance. A number of measures have been developed in the literature without having been fully validated, and therefore leaving in question which measure should be used for empirical exploration. The purpose of this study is to examine the relative performance of a number of popular measures in predicting stock returns and to test the relative efficacy of a hybrid approach. Using a panel of investor sentiment measures, we develop a new measure of sentiment which combines direct and indirect sentiment measures. Our results show that our composite sentiment index affects the returns of stocks hard to value and difficult to arbitrage consistent with the predictions of noise trader’s models. Finally, we find that our composite index has a better predictive ability than the alternative sentiment measures largely used in the literature

In vitro biofilms and antifungal susceptibility of dermatophyte and non-dermatophyte moulds involved in foot mycosis

Tinea pedis and onychomycosis are among the commonest fungal diseases in the world. Dermatophytes and, less frequently, non-dermatophyte moulds are aetiological agents of foot mycosis and are capable of forming biofilms. Fungal biofilm has demonstrated increasing drug resistance. This work aims to evaluate, in vitro, the ability to form biofilm and the susceptibility to antifungal drugs of sessile dermatophytes and non-dermatophyte moulds involved in foot mycosis. Thirty-six dermatophytes and non-dermatophyte moulds isolated from Tunisian patients with foot mycoses, and identified with MALDI-TOF have been tested. MICs of fluconazole, econazole, itraconazole, terbinafine and griseofulvin were carried out using CLSI broth microdilution method. The ability to form biofilm and antifungal activities of drugs against fungal biofilm formation has been quantified by Crystal Violet and Safranin Red staining. Biomass quantification revealed that all species studied were able to form biofilms in vitro after 72 hours. Fluconazole, econazole, itraconazole and terbinafine inhibited fungal growth with MIC values ranging from 0.031 to >64 μg mL(-1) . The best antifungal activity has been obtained with terbinafine against Fusarium solani. Econazole showed the highest activity against fungal biofilm formation. These findings can help clinicians to develop the appropriate therapy of foot mycosis