Search results for "MAI"
showing 10 items of 6279 documents
Education, capital humain et dynamique économique : analyse à partir du secteur industriel sénégalais
2005
The objective of this work is to analyze the relations between education, human capital and the industrial performances in Senegal. The approached questions are different and varied, and more particularly, they relate to the investment of industrial concerns in the human resources (levels of qualification of the workforce, training policies), at the various levels of efficiency (internal and external) of the educational system, in the adequacy training / employment, etc. The impact of the human capital investment of the firms on their own performances is finally studied.
Evolucion del rendimiento del capital humano en Espana desde 1981 a 1991
1995
International audience
Capital humano y formación de rentas
1989
International audience
Late Carnian-Early Norian ammonoids from the GSSP candidate section Pizzo Mondello (Sicani mountain, Sicily).
2012
A small collection of ammonoids from the Upper Triassic Scillato Formation at Pizzo Mondello (Agrigento, Sicily) is studied. The specimens were collected in a framework of a project aimed at providing an integrated high-resolution bio-chronostratigraphic support to the Upper Carnian-Norian magnetostratigraphic scale defined at this site, that is located in an historical area from which G.G. Gemmellaro collected the Upper Triassic of ammonoids monographed at the beginning of the XX century. The specimens from Pizzo Mondello were bed-by-bed sampled and represent the first collection of Upper Triassic ammonoids described from Sicily since Gemmellaro time. Quite several levels of the Pizzo Mond…
Algunas reflexiones acerca de la stjue de 9 de julio de 2020 sobre los pactos novatorios en materia de cláusulas suelo
2021
The Sentence of the Court of Justice of the European Union of July 9, 2020 comes to answer the five questions that, in its preliminary question, the Court of First Instance and Instruction No. 3 of Teruel asks about the validity of the new agreements in the context of the floor clauses, establishing jurisprudential doctrine on this matter about which our Supreme Court had previously ruled in its Judgments of October 16, 2017, in the sense of considering the agreed floor clause null as a consequence of the novation agreement and, subsequently, those of April 11, 2018 and September 13, 2018 in the opposite direction, declaring that the novation agreement was valid. It is a long-awaited and in…
Gradientu pastiprināšanas algoritmu salīdzinājums un mainīgo būtiskuma analīze
2020
Šajā darbā tiek izpētīti un salīdzināti trīs no jaunākiem un plaši izmantotiem gradienta pastiprināšanas algoritmiem - XGBoost, LightGBM un CatBoost. Šie algoritmi tiek salīdzināti pēc to ātrdarbības, kā arī tendences uz pārpielāgošānos treniņa datiem. Tiek analizēta arī šo algoritmu spēja izmantot modelēšanā kategoriskus mainīgos. Papildus tiek izpētīti algoritmu hiperparametri un to ietekme uz algoritma pārpielāgošanos un modeļa precizitātes rādītājiem. Balstoties uz rezultātiem, tiek sniegti ieteikumi par hiperparametru skaņošanu. Otrajā eksperimenta daļā tiek izpētīta uz spēļu teorijas Šaplī vērtību balstītā metode mainīgo būtiskuma noteikšanai. Iegūtiem rādītājiem ar būtstrapa metodes …
Fractional p-Laplacian evolution equations
2016
Abstract In this paper we study the fractional p-Laplacian evolution equation given by u t ( t , x ) = ∫ A 1 | x − y | N + s p | u ( t , y ) − u ( t , x ) | p − 2 ( u ( t , y ) − u ( t , x ) ) d y for x ∈ Ω , t > 0 , 0 s 1 , p ≥ 1 . In a bounded domain Ω we deal with the Dirichlet problem by taking A = R N and u = 0 in R N ∖ Ω , and the Neumann problem by taking A = Ω . We include here the limit case p = 1 that has the extra difficulty of giving a meaning to u ( y ) − u ( x ) | u ( y ) − u ( x ) | when u ( y ) = u ( x ) . We also consider the Cauchy problem in the whole R N by taking A = Ω = R N . We find existence and uniqueness of strong solutions for each of the above mentioned problem…
Protein targeting to the plasma membrane of adult skeletal muscle fiber: an organized mosaic of functional domains.
2001
The plasma membrane of differentiated skeletal muscle fibers comprises the sarcolemma, the transverse (T) tubule network, and the neuromuscular and muscle-tendon junctions. We analyzed the organization of these domains in relation to defined surface markers, beta-dystroglycan, dystrophin, and caveolin-3. These markers were shown to exhibit highly organized arrays along the length of the fiber. Caveolin-3 and beta-dystroglycan/dystrophin showed distinct, but to some extent overlapping, labeling patterns and both markers left transverse tubule openings clear. This labeling pattern revealed microdomains over the entire plasma membrane with the exception of the neuromuscular and muscle-tendon j…
The Experience of Impecuniousness in a Noble Family at the End of the Nineteenth Century
2017
Abstract Being a member of the elite imposed high demands on the livelihood of noble civil servant families in Finland at the end of the nineteenth century. Although the salaries of high-ranking officials were relatively substantial, they could not always ensure the standard of living which was demanded by the elite of the Grand Duchy of Finland. This article concerns the family of the governor, Baron Gustaf Aminoff, and their livelihood. The living of the Aminoff family was totally derived from Governor Aminoff's salaries and fees; they had no other sources of income, such as a manor or land. The Aminoff family constantly suffered a lack of money and its everyday consumption was rational a…
Toxicity and mode of action of Bacillus thuringiensis Cry proteins in the Mediterranean corn borer, Sesamia nonagrioides (Lefebvre)
2006
ABSTRACT Sesamia nonagrioides is one of the most damaging pests of corn in Spain and other Mediterranean countries. Bt corn expressing the Bacillus thuringiensis Cry1Ab toxin is being grown on about 58,000 ha in Spain. Here we studied the mode of action of this Cry protein on S. nonagrioides (binding to specific receptors, stability of binding, and pore formation) and the modes of action of other Cry proteins that were found to be active in this work (Cry1Ac, Cry1Ca, and Cry1Fa). Binding assays were performed with 125 I- or biotin-labeled toxins and larval brush border membrane vesicles (BBMV). Competition experiments indicated that these toxins bind specifically and that Cry1Aa, Cry1Ab, an…