Educational robotics as an Innovative teaching practice using technology: minimization of risks

This research is focused on studying educational robotics, specifically robots which provide functions of educational activity. We have considered the questions of intelligent agents' behavior and have studied their educational opportunities. Educational robotics is a powerful tool of developing person's skills and abilities in various fields of technical creativity and professional activity. The evolutionary development of robotics is connected with development of artificial intelligence, where emotions play a great role in operations. Nowadays the main thing is to form the ability and skills of optimum interaction with social environment when a person, based on gained knowledge, is capable to put goals of the activity in strict accordance with laws and society conditions and using current technology

Spectroscopie photoassociative des états moléculaires à longue distance de 87^{87}Rb. Analyse Lu-Fano et amélioration de la formule de Le Roy-Bernstein

Nous avons étudié la photoassociation de $^{87}$Rb sous la limite 5S$_{1/2}+5{\rm P}_{1/2}$ (D$_{1}$), par spectroscopie de pertes d'atomes froids. Les spectres montrent les progressions vibrationnelles des trois séries d'états moléculaires attractifs $0_{\rm g}^{-}$, $0_{\rm u}^{+}$ et $1_{\rm g}$ convergents vers la limite $5{\rm S}_{1/2}+5{\rm P}_{1/2}$. L'analyse de nos données utilise l'approche de Lu-Fano associé au modèle de LeRoy-Bernstein. Pour la série $0_{\rm g}^{-}$, cette approche met en évidence un écart au modèle. Une amélioration de la formule de LeRoy-Bernstein permet de rendre compte des mesures expérimentales. Pour la série $0_{\rm u}^{+}({\rm P}_{1/2})$ avec la même méthode, on montre le couplage avec la série $0_{\rm u}^{+}({\rm P}_{3/2})$

Analysis of MTNR1A Genetic Polymorphisms and Their Association with the Reproductive Performance Parameters in Two Mediterranean Sheep Breeds

Sheep farming plays an important economic role, and it contributes to the livelihoods of many rural poor in several regions worldwide and particularly in Tunisia. Therefore, the steady improvement of ewes’ reproductive performance is a pressing need. The MTNR1A gene has been identified as an important candidate gene that plays a key role in sheep reproduction and its sexual inactivity. It is involved in the control of photoperiod-induced seasonality mediated by melatonin secretion. The aim of this study was to identify SNPs in the MTNR1A gene in two Tunisian breeds, Barbarine (B) and Queue Fine de l’Ouest (QFO). DNA extracted from the blood of 77 adult ewes was sequenced. Selected ewes were exposed to adult fertile rams. A total of 26 SNPs were detected; 15 SNPs in the promoter region and 11 SNPs in the exon II were observed in both (B) and (QFO) breeds. The SNP rs602330706 in exon II is a novel SNP detected for the first time only in the (B) breed. The SNPs rs430181568 and rs40738822721 (SNP18 and SNP20 in our study, respectively) were totally linked in this study and can be considered a single marker. DTL was associated with SNP18 and SNP20 in (B) ewes (p &lt; 0.05); however, no significant difference was detected between the three genotypes (G/G, G/A, and A/A) at these two SNPs. Fertility rate and litter size parameters were not affected by SNP18 and SNP20. There was an association between these two polymorphisms and (B) lambs’ birth weights (p &lt; 0.05). Furthermore, the ewes with the A/A genotype gave birth to lambs with a higher weight compared to the other two genotypes for this breed (p &lt; 0.05). There was not an association between SNP 18 and SNP20 and (QFO) ewes’ reproductive parameters. These results might be considered in future sheep selection programs for reproductive genetic improvement.</jats:p