Université d’Antsiranana

This article aims to examine the possible links between the teacher’s atmospheric postures and the students’ learning postures during the teaching of mathematics, particularly with regard to solving proportionality problems in 3rd grade at Bourbon College on Reunion Island. This analysis will be based on the observation of teaching practices through video sequences, and will be deepened through the use of Implicative Statistical Analysis (ISA) according to ICHC-MGK. The study results show that maintaining a space for dialogue encourages students to adopt an academic posture. Creating this space for dialogue also helps to capture their attention. As a result, the study highlights the importance of providing teachers with in-depth training and a better understanding of their pupils’ individual needs. This would enable them to adapt their teaching methods more effectively to the particularities of each learning context, in order to improve student success.

ABSTRACT: Collocations are often characterised by binary lexical combinations in linguistics and in language teaching and learning, these associations are often a source of difficulties, not only in reception but also in production, particularly for non-native learners who often use their native language as a support, thus creating interference during production. The consecutive constructions forming intensive adjectival collocations, which are the subject of this work, are part of the sequences that are productive not only in malagasy but also in french, and are therefore generally sources of interference. Moreover, these constructions, which are frequently used to express a property, extend collocational phenomena to complex sentences. Our study, based on a predicative analysis in the two languages, considers collocations as a property of the lexicon which emphasises the notion of lexical attraction in discourse, whose interest lies in identifying the various semantic, paradigmatic and distributional constraints in these lexical combinations, through possible transformations in order to work on reformulation skills. RÉSUMÉ : Les collocations sont souvent caractérisées par des combinatoires lexicales binaires en linguistique et dans l’enseignement-apprentissage des langues, ces associations sont souvent sources de difficultés, non seulement en réception mais aussi en production et particulièrement pour les apprenants non natifs qui prennent souvent comme appui leur langue maternelle, créant ainsi des interférences lors de leur production. Les constructions consécutives formant les collocations adjectivales intensives, qui sont l’objet de ce travail, font parties des séquences qui sont productives non seulement en malgache mais également en français et de ce fait, sont généralement sources d’interférences. De plus, ces constructions, qui sont fréquemment utilisées pour exprimer une propriété, élargissent les phénomènes collocationnels aux phrases complexes. Notre étude, à partir d’une analyse prédicative dans les deux langues, considère les collocations comme une propriété du lexique qui met l’accent sur la notion d’attraction lexicale dans le discours dont l’intérêt se trouve dans l’identification des différentes contraintes, d’ordre sémantique, paradigmatique et distributionnel, dans ces combinaisons lexicales, à travers les transformations possibles afin de travailler les compétences de reformulation.

Chemotherapy with 5-fluorouracil (5 FU) has been widely used to treat advanced gastric cancer. Knowing the side effects is therefore important in order to better prevent them. Fluoropyrimidine-induced hyperammonemic encephalopathy is a rare complication and characterized neurological status with elevated ammonia level without radiological abnormalities. We report the first case of 5 FU-induced hyperammonemic encephalopathy in women patients on induction chemotherapy for gastric cancer in Madagascar. His ammonia level (NH3) was 102 μmol/l. The patient recovered from his confusional state after two days of treatment with hyperhydration and vitamin therapy.

In a system of solar energy production, defects can cause a partial or total loss of energy, damage to the system, or failure to safety. Detecting defects is more than necessary to ensure reliability, productivity, safety, and system efficiency. In this paper, we propose a device appropriate for fault detection on the PV plant such as shading. The Bishop model is adapted to the defaults studied in such a system because it considers the avalanche mode of a cell. The model is used to estimate the output values of the system including current, voltage, and power based on the measured inputs such as temperature and irradiance. The model is implemented in the programmable card-based device. Afterward, the residues calculated from the difference between the estimated and the measured value are used in the detection algorithm. Then the Page-Hinkley algorithm is implemented in the card to verify any eventual mean jumps of the residues. The interest of the device is to offer a low-cost monitoring system able to detect any defects in the PV system. The device was tested on the photovoltaic system installed at the Vignola-Ajaccio site to confirm its performance.

Among mammals, the order Primates is exceptional in having a high taxonomic richness in which the taxa are arboreal, semiterrestrial, or terrestrial. Although habitual terrestriality is pervasive among the apes and African and Asian monkeys (catarrhines), it is largely absent among monkeys of the Americas (platyrrhines), as well as galagos, lemurs, and lorises (strepsirrhines), which are mostly arboreal. Numerous ecological drivers and species-specific factors are suggested to set the conditions for an evolutionary shift from arboreality to terrestriality, and current environmental conditions may provide analogous scenarios to those transitional periods. Therefore, we investigated predominantly arboreal, diurnal primate genera from the Americas and Madagascar that lack fully terrestrial taxa, to determine whether ecological drivers (habitat canopy cover, predation risk, maximum temperature, precipitation, primate species richness, human population density, and distance to roads) or species-specific traits (body mass, group size, and degree of frugivory) associate with increased terrestriality. We collated 150,961 observation hours across 2,227 months from 47 species at 20 sites in Madagascar and 48 sites in the Americas. Multiple factors were associated with ground use in these otherwise arboreal species, including increased temperature, a decrease in canopy cover, a dietary shift away from frugivory, and larger group size. These factors mostly explain intraspecific differences in terrestriality. As humanity modifies habitats and causes climate change, our results suggest that species already inhabiting hot, sparsely canopied sites, and exhibiting more generalized diets, are more likely to shift toward greater ground use.

One element of the school as a system is the teacher. The role of the teacher is one of the resources that determine the success of education, especially in teaching and learning activities in schools. This study aims to discuss the role of work motivation, competence, and professionalism on teacher performance. This study uses a survey method with a correlational quantitative approach. The research location is in the School Cluster, Gempol District, Pasuruan Regency. Data were collected from all primary school teachers in the UPTD Education and Culture of Gempol District as many as 40 people. The data analysis used is multiple linear regression. The findings of this study indicate that there is a significant role of teacher motivation, competence and professionalism to shape teacher performance together. Motivation partially plays a significant role in shaping teacher performance. Competence partially provides a significant role in the ups and downs of teacher performance. The formation of teacher performance is based on the professionalism of the teacher.

The most comprehensive phylogenomic reconstruction to date was generated on all nominal taxa within the lemur genus Propithecus. Over 200 wild-caught individuals were included in this study to evaluate the intra and interspecific relationships across this genus. Ultraconserved Elements (UCEs) resulted in well-supported phylogenomic trees. Complete mitochondrial genomes (CMGs) largely agreed with the UCEs, except where a mitochondrial introgression was detected between one clade of the diademed sifaka (Propithecus diadema) and the Milne-Edwards sifaka (P. edwardsi). Additionally, the crowned (P. coronatus) and Von der Decken’s (P. deckeni) sifakas belonged to a single admixed lineage from UCEs. Further sampling across these two species is warranted to determine if our sampling represents a hybrid zone. P. diadema recovered two well-supported clades, which were dated and estimated as being ancient as the split between the Perrier’s (P. perrierii) and silky (P. candidus) sifakas. The reconstructed demographic history of the two clades also varied over time. We then modeled the modern ecological niches of the two cryptic P. diadema clades and found that they were significantly diverged (p < 0.01). These ecological differences result in a very limited zone of geographic overlap for the P. diadema clades (<60 km2). Niche models also revealed that the Onive River acts as a potential barrier to dispersal between P. diadema and P. edwardsi. Further taxonomic work is required on P. diadema to determine if its taxonomic status should be revised. This first genomic evaluation of the genus resolved the relationships between the taxa and the recovered cryptic diversity within one species.

Renal arteriovenous malformation is a rare embryonary’s dysplasia We report the case of a 44-year-old woman, who presented left-sided renal colic Uroscanner did not show any obstructive syndrome of urinary tracts associated with either lithiasis or tumoral syndrome However, it revealed a left renal arteriovenous malformation.&#x0D; La malformation artério-veineuse rénale est une dysplasie d’origine embryonnaire rare Nous rapportons le cas d’une femme de 44 ans, qui a présenté un tableau clinique de colique néphrétique gauche L’uroscanner ne révélait pas de syndrome obstructif des voies urinaires ni de lithiase ni de syndrome tumoral Par contre, il a montré une malformation artério-veineuse rénale à gauche.

Human resources are the most important resources for companies, so it is important to manage their skills to anticipate their evolution for the development of the company. Competency management is the way an organization manages its human capital and ensures the adjustment between the skills and knowledge of employees and their needs to achieve its objectives. However, the question that arises is whether competency management has an impact on the organizational commitment of employees.