Search results for "InSe"

Contenuti e learning outcomes: una proposta per gli insegnamenti del Corso di Specializzazione sul sostegno

2020

Il lavoro nell’ottica del monitoraggio e del miglioramento ai fini della progettazione delle attività future del Corso di Specializzazione per le Attività di Sostegno (D.M. 30 settembre 2011), si colloca in seno all’attuale dibattito sulla ricerca di indicatori specifici e di strumenti condivisi per valutare e migliorare i risultati della didattica universitaria in questo ambito. L’individuazione dei contenuti core nei Corsi di Specializzazione rappresenta un elemento chiave per la progettazione e la formazione dei futuri docenti di sostegno. L’articolo presenta l’impostazione metodologica di un processo di ricerca messo in atto presso l’Università degli Studi di Palermo nell’a.a. 2018/19, …

Echovirus 1 Entry into Polarized Caco-2 Cells Depends on Dynamin, Cholesterol, and Cellular Factors Associated with Macropinocytosis

2013

ABSTRACT Enteroviruses invade their hosts by crossing the intestinal epithelium. We have examined the mechanism by which echovirus 1 (EV1) enters polarized intestinal epithelial cells (Caco-2). Virus binds to VLA-2 on the apical cell surface and moves rapidly to early endosomes. Using inhibitory drugs, dominant negative mutants, and small interfering RNAs (siRNAs) to block specific endocytic pathways, we found that virus entry requires dynamin GTPase and membrane cholesterol but is independent of both clathrin- and caveolin-mediated endocytosis. Instead, infection requires factors commonly associated with macropinocytosis, including amiloride-sensitive Na + /H + exchange, protein kinase C, …

Des métiers et des hommes : le cas de l'insertion des apprentis

1986

The paper analyses the insertion into the labour market of students leaving an apprenticeship program in Burgundy. It aims at estimating the respective weight of personal factors (social characteristics, sex, age, former schooling ... ) and of the trade for which one is training, to explain the success in entering the labour market. The most important result stemming from the econometric analysis is that most of the differences in the rate of unemployment between apprenticeship trades lies in the personal characteristics of graduates. The professional speciality of apprenticeship, per se, plays only a limited role in this respect. We reach therefore the conclusion that the argument accordin…

Insertion professionnelle de sortants d'apprentissage : influence de la segmentation scolaire, du métier et des caractéristiques personnelles sur l'e…

1983

Une sélection parmi d'autres : les déterminants du souhait d’études supérieures des bacheliers professionnels

2020

International audience; Depuis le milieu des années 2000 et plus particulièrement depuis 2010, les opportunités d’études supérieures des bacheliers professionnels n’ont cessé de croître. Néanmoins, du projet scolaire à l’obtention d’un diplôme, en passant par l’admission dans une formation, leur parcours semble encore jonché d’obstacles. L’augmentation du taux de poursuite d’études des bacheliers professionnels signifie-t-elle que l’enseignement supérieur se démocratise? Les portes de l’enseignement supérieur sont-elles restées «entrouvertes» aux bacheliers professionnels(Lemêtre, Mengneau & Orange, 2016)?Ce travail explore les enjeux des poursuites d’études supérieures des bacheliers profe…

Influence des caractéristiques personnelles et de la spécificité de formation dans l'accès aux emplois des anciens apprentis

1986

référence interne : 86016; Dans ce texte, nous; nous interrogerons sur les conditions et caractéristiques qui facilitent ou au contraire freinent l'insertion sur le marché du travail de jeunes ayant reçu une formation professionnelle courte. Le cas étudié est celui de l'apprentissage à partir d'une base empirique constituée par une enquête réalisée dans les quatre départements bourguignons auprès de sortants de cette filière de formation en 1976 et 1978.

L'horizon des jeunes salariés dans leur entreprise : du lien noué avec l'employeur dépend en partie le salaire et la carrière

1988

International audience; Un peu plus du tiers des jeunes actifs de 16 à 26 ans désirent rester dans l'entreprise qui les emploie au-delà des trois années à venir, et pensent que c'est possible. Cette proportion estimée à l'enquête Emploi de mars 1 986, permet d'approcher ce que l'on peut appeler \guillemotleft l'horizon de la relation de travail \guillemotright. On peut supposer que, pour un jeune salarié, un horizon éloigné de plus de trois ans dans la même entreprise est un gage de bonne qualité des relations spécifiques qu'il a nouées avec son employeur. Or, si l'on se réfère à la théorie du capital humain, de la qualité de ces relations dépendra en partie la carrière salariale. À caracté…

Ultrastructural changes of the oenocytes of Gryllus bimaculatus DEG (Saltatoria, Insecta) during the moulting cycle

1974

1. The oenocytes of Gryllus bimaculatus are characterized by an abundant smooth-surfaced ER (ATER). In spite of the great cell size the plasma membrane never shows extensive infoldings during the moulting cycle. In addition to mitochondria there are very large numbers of microbodies containing peroxidase but apparently not uricase. Within the second part of the instar the microbodies lie along the clefts which run through the whole cell. 2. The following changes are observed in the course of a moulting cycle: Immediately after hatching the ATER is scarcely developed, some liposomes are located within areas of ATER disappearing some hours later. 20 hours after emergence glycogen deposits app…

Biosynthesis of ecdysones in isolated prothoracic glands and oenocytes of Tenebrio molitor in vitro.

1974

Abstract Isolated prothoracic glands from Tenebrio larvae synthesize in vitro α-ecdysone, but not β-ecdysone from 4-14C-cholesterol. Isolated abdominal oenocytes from the larvae synthesize mainly β-ecdysone, but only little α-ecdysone. When prothoracic glands and oenocytes are cultured together, the α-ecdysone derived from the prothoracic glands is oxidized by the oenocytes to β-ecdysone. The newly synthesized hormones are not stored in the cells, but are secreted into the medium if sufficient amounts of non-labelled hormones are present. If no unlabelled hormones are added to the culture medium, the newly formed hormones are converted to a large extent into polar conjugates.

Woc (without children) gene control of ecdysone biosynthesis in Drosophila melanogaster.

2001

Abstract The first step in ecdysteroidogenesis, i.e. the 7,8-dehydrogenation of dietary cholesterol (C) to 7-dehydrocholesterol (7dC), is blocked in Drosophila melanogaster homozygous woc (without children) third instar larval ring glands (source of ecdysone). Unlike ring glands from wild-type D. melanogaster larvae, glands from woc mutants cannot convert radiolabelled C or 25-hydroxycholesterol (25C) to 7dC or 7-dehydro-25-hydroxycholesterol (7d25C) in vitro, nor to ecdysone (E). Yet, when these same glands are incubated with synthetic tracer 7d25C, the rate of metabolism of this polar Δ5,7-sterol into E is identical to that observed with glands from comparably staged wild-type larvae. The…