Search results for "MINC"
showing 10 items of 32 documents
Estornell negre = Estornino negro
Altres noms vulgars: Spotless Starling (Anglès), Étourneau unicolore (Francès), Einfarbstar (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 31-5 Valencia _ Invierno unicolor _
Micro/nanostructured thin films : synthesis by ALD of composites associating TiO2 inverse opals and gold nanoparticles for photocatalysis applications
2021
The aim of this work was to improve the photocatalytic properties of titanium dioxide (TiO2) thin films, a semiconductor that is widely used for photocatalysis applications, particularly for the treatment of polluted water. For this purpose, two complementary approaches were studied: increasing the surface area available for photocalatytic reactions and coupling between TiO2 and gold nanoparticles.. For the first approach, TiO2 thin films with different morphological structures were fabricated by Atomic Layer Deposition: dense and porous flat films, and inverse opals films.In order to evaluate photocatalytic activity of the different films, the degradation of methylene blue in aqueous solut…
Co-GLAD sputtering of tungsten-based nanostructured metallic thin films
2022
A structural and electrical study of tungsten-based metal thin films prepared by co-sputtering GLAD is the subject of this thesis. For this purpose, three different systems (W-W, W-Ag and W-Mo) have been developed using two opposite metallic targets (tilt angle α = 80° with the substrate). In addition to the choice of the second metallic element, different parameters involved in the growth of these films have undergone a variation (working pressure, thickness and second target current) to understand their influence on structural and electrical behaviors of these films. All three systems present a columnar and porous structure. The morphology of these films (especially the inclination of the…
Étude et manipulation de modes résonants en champ proche optique
2010
Within the quick nano-fabrication techniques evolution and the increasing needs in low space and energy opto-electronic functions on-chip integration, studies and control of electromagnetic resonances of sub-micrometric objects are crucial issues. One aim of this work was then to improve our knowledge of the light-matter interaction. To this end, optical near-field experiments and complementary numerical development of models have been performed to study electromagnetic resonances due to light-matter interaction in sub-micrometric resonators. As an introduction, the first part of the manuscript presents the main phenomena involved in near-field optical microscopy and the used SNOM operation…
Un réexamen du modèle de gains de Mincer
1986
A re-appraisal of mincer's earnings model Starting from rough measures of formal schooling and on the job training, the earning model proposed by J. Mincer (1974) suceed to explain a substantial proportion of the variance of individual earning. The explanatory power of the model can be significantly boosted by increasing the quality of the variables. In spite of the robustness of the model, the interpretation of the results is to be taken cautiously. These results can be derived from alternative theoretical hypothesis and namely to the one known as the filter hypothesis. It is shown that a specification of the earnings function consistent with the filter hypothesis is proced to be empirical…
Separation de glycosides d'alcools terpeniques diastereoisomeres par HPLC sur phase cyclodextrine liee
1992
National audience
Economic Returns to Education in France: OLS and Instrumental Variable Estimations
2013
En ligne sur : http://121.52.153.179/JOURNAL/LJE%20VOL%2018-2/Bhatti,%20Bourdon%20and%20Aslam.pdf; International audience; This article estimates the economic returns to schooling as well as analyzing other explanatory factors for the French labor market. It addresses the issue of endogeneity bias and proposes two new instruments for use in the instrumental variable two-stage least squares technique. Our results show that the proposed instruments are relevant and adequate, based on evidence from the available literature. After using the proposed instruments, we find that the OLS coefficients for schooling are biased downwards. Finally, we choose between the two proposed instruments.
Kannattaako Suomessa kouluttautua ammatilliselle toiselle asteelle? : koulutuksen palkkavaikutus vuosina 1990-2010
2016
Tässä pro gradu -tutkielmassa tarkastellaan koulutuksen palkkavaikutusta Suomessa vuosien 1990-2010 välillä, ja tutkitaan erityisesti ammatillisen kou-lutuksen merkitystä. Työtäni motivoivat tuloerot, työmarkkinoiden rakenne-muutokset ja ammatillisen koulutuksen uudistus. Teoriapohjana ovat inhimil-lisen pääoman teoria ja Mincerin palkkafunktio, ja tutkimuksessa sivutaan myös osaamista suosivaa teknologista kehitystä. Lisäksi tutkimuksessani pohditaan opintojen keskeyttämistä ja paneudutaan perusasteen merkityk-seen Suomessa. Tutkimus toteutetaan estimoimalla Mincerin palkkafunktiota ja aineistona käytetään Tilastokeskuksen yksinkertaistettua työssäkäyntiaineistoa (FLEED). Lisäkoulutusvuode…
Modeling Return to Education in Heterogeneous Populations: An Application to Italy
2019
The Mincer human capital earnings function is a regression model that relates individual’s earnings to schooling and experience. It has been used to explain individual behavior with respect to educational choices and to indicate productivity on a large number of countries and across many different demographic groups. However, recent empirical studies have shown that often the population of interest embed latent homogeneous subpopulations, with different returns to education across subpopulations, rendering a single Mincer’s regression inadequate. Moreover, whatever (concomitant) information is available about the nature of such a heterogeneity, it should be incorporated in an appropriate ma…
Materiały do brioflory rezerwatu przyrody Boczki (Puszcza Romincka)
2017
The results of bryological investigations from the “Boczki” nature reserve, located in Puszcza Romincka Forest, are presented. The reserve was established in 1974 for protection well preserved forest communities characteristic of the Romincka Primeval Forest. 154 bryophyte species were recorded – 37 liverworts and 117 mosses, including 37 unpublished species from the Puszcza Romincka Forest. In respect of frequency the main group make rare species – 29.2%, the least numerous were frequent – 21.4%. Terrestrial and epixylic habitats were the richest – refer 98 and 85 species respectively. Significant were groups of protected (47) and endangered (14) species. There is also a large share of bry…