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The process driving graduate workers into undergraduate jobs is investigated. Micro and macro perspectives are considered in order to analyze the interrelationships between individual mismatch and overeducation. The model highlights the fact that individual mismatch does not necessarily imply that the share of graduates exceeds what is optimally required at the aggregate level. In the presence of matching frictions, individual mismatch may be associated with either under- or overeducation. Policies regulating access to higher education may affect mismatch in different ways, depending on the situation in question. In some cases, measures aimed at promoting participation in higher education may help reduce the incidence of mismatch.

State and Wealth dependence of individual financial risk preferences are investigated using Italian longitudinal data. Severance pay investments of private sector employees are used to elicit risk aversion. The identification strategy relies on (i) the behavior of workers changing job contract because of legal limits imposed to fixed-term contract renewal; (ii) the presence of different income prospects and employment protection from the risk of layoff associated to different labor arrangements. Fixed-Effects estimates show that financial investments – and consequently risk preferences – are not affected by expected wealth modifications. Conversely, employment protection determines risk attitude pointing for the existence of state-dependent relative risk aversion as regards financial investment decisions.

The effect of flexibility at-the-margin on wage of permanent employees is evaluated using Italian Linked Employer-Employee Data for the period 1991–2004. Temporary Agency Workers (TAW) introduced in Italy in 1997 in some specific industries represents a form of flexible job providing a quasi-experimental setup that can be used to obtain identification by applying difference-in-differences. Concerns related to confounding trends are addressed through several robustness and falsification tests. Norms introducing TAW in all sectors in 2000 are also exploited. Results show an increase in permanent employees’ wage in industries involved in the reform. This evidence is consistent with insider-outsider theories wherein — in a dual labor market — a rise in the share of unprotected employees may spill over upon insiders’ wage.

Liquid-liquid phase separation (LLPS) is involved in the formation of membraneless organelles (MLOs) associated with RNA processing. Present in several MLOs, TDP-43 undergoes LLPS and is linked to the pathogenesis of amyotrophic lateral sclerosis (ALS). While some disease variants of TDP-43 disrupt self-interaction and function, here we show that designed single mutations can enhance TDP-43 assembly and function via modulating helical structure. Using molecular simulation and NMR spectroscopy, we observe large structural changes in a dimeric TDP-43. Two conserved glycine residues (G335 and G338) are potent inhibitors of helical extension and helix-helix interaction, which are removed in part by variants including the ALS-associated G335D. Substitution to helix-enhancing alanine at either of these positions dramatically enhances phase separation in vitro and decreases fluidity of phase separated TDP-43 reporter compartments in cells. Furthermore, G335A increases TDP-43 splicing function in a mini-gene assay. Therefore, TDP-43 helical region serves as a short but uniquely tunable module that shows promise as for controlling assembly and function in cellular and synthetic biology applications of LLPS.

Orientador: Prof. Dr. Edson Ronaldo Guarido Filho Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Sociais Aplicadas, Programa de Pós-Graduação em Gestão e Tecnologia da Informação. Defesa : Curitiba, 31/05/2019 Inclui referências: p. 117-130 Resumo: As organizações se tornaram cada vez mais acessíveis à sociedade e a busca das pessoas por serviços de qualidade se tornaram mais comuns, pois além dos conteúdos disponibilizados pela mídia os usuários passaram a compartilhar na internet suas opiniões referentes a experiências em relação às organizações. Estas informações são utilizadas para descrever as experiências pessoais e memórias que os usuários tiveram na utilização de um dado produto ou serviço, dando às empresas um conteúdo potencial que serve de base para explicar aos stakeholders as razões pelos quais devem adquiri-los, fornecendo uma base importante para a tomada de decisão. Esta pesquisa estuda a mineração de opinião com o intuito de verificar como ela influencia na percepção sobre a legitimidade organizacional. Assim, será possível verificar de que forma as opiniões expressas nas redes sociais online e websites de comentários online, através do Booking, Tripadvisor e Facebook, no período de 2012 a 2018, influenciam as respostas estratégicas de legitimação na rede Hoteleira Alpha em Curitiba. Utilizou-se: pesquisa bibliográfica acerca dos temas, principais conceitos e estudos mais recentes; aplicação de análise de conteúdo e análise documental. A verificação dos resultados obtidos na análise de conteúdo foi através da mineração de opinião nas redes sociais e websites de comentários online utilizando-se o software de apoio Phyton. Na análise documental foram utilizados 10.882 comentários das redes sociais e websites de comentários online. Conclui-se que a Rede Hoteleira Alpha e seus hotéis consideram que os comentários online são fundamentais para que se mantenha a legitimidade da organização e que é utilizado nas estratégias de legitimação, segundo Oliver (1991) na aquiescência no curto prazo e compromisso no longo prazo. Palavras-chave: 1. Legitimidade 2. Redes Sociais Online 3. Websites deComentários Online 4. Mineração de Opinião 5. Respostas Estratégicas de Legitimação 6. Hotéis Abstract: Organizations have become increasingly accessible to society and people's search for quality services has become more common, because in addition to the content made available by the media users have started to share their opinions about experiences with organizations. This information is used to describe the personal experiences and memories that users have had in using a given product or service, giving companies a potential content that serves as the basis for explaining to the stakeholders the reasons why they should acquire them, providing a basis important for decision-making. This research studies the opinion mining in order to verify how they influence the perception about organizational legitimacy. Thus, it will be possible to verify how the opinions expressed in online social networks and online comment websites through Booking, TripAdvisor and Facebook, between 2012 and 2018, influence strategic legitimation responses in the Alpha network in Curitiba. We used: bibliographic research about the themes, main concepts and more recent studies; application of content analysis and documentary analysis. The verification of the results obtained in the content analysis, was through the sentiment analysis in social networks and online comment websites using the Python support software. In the documentary analysis were used 10,882 comments from social networks and online comment websites. It is concluded that the Alpha Network and its hotels consider that the online comments are fundamental to maintain the legitimacy of the organization and are used in strategic legitimation responses of Oliver's (1991) in acquiescence in the short term and commitment in long term. Keywords: 1. Legitimacy 2. Online Social Networks 3. Online Comment Websites 4. Opinion Mining 5. Strategic Responses 6. Hotels

La tesi Alle origini della drammaturgia rinascimentale: due commedie di area mantovana consiste nell’indagine della fase inaugurale della drammaturgia comica rinascimentale, attraverso l’analisi di due commedie che si collocano nel quinquennio a cavallo tra il Quattrocento e il Cinquecento: Li sei contenti di Galeotto Del Carretto (probabilmente 1499) e il Formicone di Publio Philippo Mantovano (probabilmente 1503). Nonostante si pongano nel periodo aurorale di una stagione gloriosa della storia letteraria italiana ̶ quale è quella della commedia cinquecentesca ̶ i due testi sono infatti ad oggi poco conosciuti. Ritenendo le due opere provenienti dal medesimo milieu intellettuale (ovvero quello gravitante intorno alla corte mantovana di Isabella d’Este e Francesco II Gonzaga), nel lavoro di tesi si è proposto un confronto tra i due testi, che erano stati invece sin qui letti in maniera indipendente. Di entrambe le opere è stata redatta un’edizione commentata in cui vengono approfonditi i rapporti intrattenuti con il contesto di provenienza, con le rispettive fonti e il ruolo che le due pièces rivestono nel panorama drammaturgico quattro-cinquecentesco. La conclusione che emerge dal lavoro è che ne Li sei contenti e nel Formicone si trovano, rispettivamente, anticipate e fondate le due anime, spesso intrecciate, della commedia del Cinquecento: quella novellistico-boccaccesca da un lato e quella fondata sulla rivitalizzazione dei modelli plautino-terenziani dall’altra. Per questa ragione si propone, dunque, che le due opere vengano oggi riscoperte, al fine di comprendere più approfonditamente i complessi e ibridi primi anni del Cinquecento, osservando in fieri la genesi della drammaturgia rinascimentale. Dottorato di ricerca internazionale in studi umanistici: Testi, saperi, pratiche dall’antichità classica alla contemporaneità, Ciclo XXXI, a.a. 2018-2019 Università della Calabria

International audience; The ${0}_{2}^{+}$ state in(12)C (7.654MeV, the Hoyle state) is important for the understanding of clustering phenomena in nuclei. The pronounced cluster nature of this state allows the triple-α process in stars with a reaction rate regulated by its structure properties. To precisely estimate the direct component in the 3α decay mechanism of the Hoyle state, we developed a new experiment using the(14)N(d,α)(12)C reaction at 10.5MeV. An anti-coincidence telescope was used to identify the α ejectiles leading the residual(12)C in the Hoyle state, while its decays in 3α were studied by means of a new hodoscope of silicon detectors, superOSCAR, placed in kinematical coincidence to fully reconstruct the events. Details of the experiment and preliminary results are discussed in the text.

International audience; The Hoyle state in 12C(Ex = 7.654MeV) is characterized by a pronounced 3α cluster configuration. It is involved in the so-called 3α process in stars, that is responsible of 12C nucleosynthesis. We studied the decay path of the Hoyle state by using the 14N(d, α2)12C(7.654) reaction at 10.5MeV incident energy. We found, with a precision higher of a factor 5 than any other previous experiment, an almost total absence of direct decays by-passing the ground state of 8Be. A new upper limit of such a decay width is placed at 0.043% (95% C.L.). Astrophysical 3α process reaction rate calculations have to be consequently revised.

Dottorato di ricerca in Scienze economiche e aziendali, XXVIII ciclo, a.a. 2015-2016

This paper analyzes to what extent the individual probability of mismatch is related to the availability of graduates in the labor market. An econometric study is implemented using a quasi-natural experiment ideally provided by an exogenous expansion of higher education that took place in some Italian regions in the late ‘90s. Difference-in-differences models show that an increase in the supply of graduates has actually reduced the individual probability of mismatch. This effect may arise from spillovers generated by greater availability of high-skilled workers leading to the creation of graduate-complementary job positions.

Background Manual tactile sensitivity is a necessary skill for accurate manual palpation. Although manual palpation is a core subject in most health sciences curricula; no studies have analyzed the evolution of touch sensitivity during the different educational levels. Objective The present study aims to compare manual tactile sensitivity in two groups of physical therapists: undergraduate-trained vs. postgraduate trained. Methods Twenty-two physical therapists with an undergraduate education and 17 physical therapists with postgraduate school education completed a haptic test consisting in the tactile recognition of two geometric figures. The accuracy of figure reproduction, time of figure exploration and student's perception of task difficulty were scored. Results Therapists with postgraduate school training showed better accuracy than undergraduate students in the reproduction of the more difficult figure. Moreover, postgraduate students spent less time on exploration, and they rated the recognition of the simpler figure easier than the undergraduate-trained students. Conclusions Postgraduate school-trained physical therapists presented greater touch sensitivity than undergraduate-trained physical therapists. Teaching strategies used during the different educational periods may contribute to the enhancement of tactile sensitivity and to the improvement of manual palpation accuracy in health science students.

The mechanism of corrosion is mainly sustained by an electrochemical process, in which anodic and cathodic reactions take place, keeping their kinetics alive by electrons and ions fluxes. Several specific conditions can accelerate corrosion processes. When studying anticorrosive coatings, one of them is the contamination of metallic surface by soluble salts prior to coating, leading to premature failure of the paint system due to corrosion between the metallic surface and the coating. So the surface preparation step prior to coating is a procedure of great importance to the coating anticorrosive performance. The aim of this step is to clean the surface by removing visible and non-visible contaminants. Usually, wet abrasive blasting methods are the most efficient ones to achieve the latter objective, because they may clean the surface, create a surface roughness and also remove the non-visible contaminants, as they use water as a media. On the other hand, evaporation of water after blasting may create flash rust and to avoid this, it is common to use corrosion inhibitors in the water of wet blasting methods. In this paper, the use of sodium tetraborate (borax) as a corrosion inhibitor in wet abrasive blasting is discussed. Electrochemical measurements and mass loss tests show that a borax content of 1% in a saline solution has the best inhibitory action over carbon steel and zinc surfaces, allowing postponing for the painting step some time. However, residual borax left on the surface generated blistering and corrosion under coating, during accelerated corrosion test in a humidity condensation chamber. Electrochemical impedance spectroscopy confirmed that borax accelerated the permeation of water through the coating, downgrading the anticorrosive performance of the paint system.

The use of industrial painting is one of the methods for corrosion protection of metals and requires a suitable surface treatment on the metallic substrate for better adhesion between metal and paint film. In cases where the substrate presents low thickness (less than 2 mm), the phosphating pretreatment is widely used, despite of such process generates harmful residues to environment and human health. In this context, the sol-gel method has been highlighted as an easy and a cheap process, and less harmful to the environment. This work shows the development of carbon steel AISI 1005 pre-treatment by sol-gel method using niobium and/or aluminium-containing-resins, synthetized by Pechini method. Electrochemical and performance analysis were carried out in samples coated by the resins, which showed analogous behavior to phosphated systems. The proposed pre-treatment has potential for phosphating process replacement, because the morphology of the deposited layers enhanced the metallic contact surface with the organic coating, increasing its mechanical and polar adhesion. Such observation can justify its better anticorrosive performance, comparing to the untreated substrate.

The use of industrial painting is one of the methods for corrosion protection of metals and requires a suitable surface treatment on the metallic substrate for better adhesion between metal and paint film. In cases where the substrate presents low thickness (less than 2 mm), the phosphating pretreatment is widely used, despite of such process generates harmful residues to environment and human health. In this context, the sol-gel method has been highlighted as an easy and a cheap process, and less harmful to the environment. This work shows the development of carbon steel AISI 1005 pre-treatment by sol-gel method using niobium and/or aluminium-containing-resins, synthetized by Pechini method. Electrochemical and performance analysis were carried out in samples coated by the resins, which showed analogous behavior to phosphated systems. The proposed pre-treatment has potential for phosphating process replacement, because the morphology of the deposited layers enhanced the metallic contact surface with the organic coating, increasing its mechanical and polar adhesion. Such observation can justify its better anticorrosive performance, comparing to the untreated substrate.

Orientador: Jansle Vieira Rocha Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola Resumo: A dicotomia entre a crescente demanda mundial por produtos agropecuários e a necessidade de preservação do meio ambiente indica que no futuro o aumento da produção deverá vir de uma intensificação da atividade agropecuária, ou seja, mais rendimento por área produtiva. Apesar da intensificação já estar ocorrendo no mundo todo, há poucos estudos sobre os fatores que a impulsionam, seus impactos, determinantes e padrões espaciais, que são importantes para tomadas de decisão política, planejamento da produção e uso da terra frente à necessidade de segurança alimentar e preservação ambiental. A região amazônica tem apresentado uma intensa mudança de uso da terra nas últimas décadas. O desflorestamento teve 71% de redução entre os anos de 2004 e 2016 devido a ações de controle ambiental, restrição de crédito e engajamento dos produtores da região. Estes se encontram agora em um novo contexto, onde a expansão de áreas produtivas é restrita e a intensificação e diversificação da produção são os caminhos possíveis para o desenvolvimento. Este trabalho teve como objetivo verificar, descrever e analisar a intensificação da pastagem em um dos municípios mais representativos desse cenário, Paragominas, no estado do Pará, avaliando a associação do controle do desflorestamento e da expansão das lavouras de grãos com a intensificação do uso do pasto no município, identificando seus fatores impulsores, determinantes, padrões espaciais e principais técnicas utilizadas entre os anos de 2004 e 2017. A sobreposição e análise estatística de três mapas de uso da terra (2004, 2008 e 2017) evidenciam a hipótese obtida com dados oficiais e de campo, mostrando que aproximadamente 51% das áreas de pastagem remanescentes foram intensificadas, sendo que a maior parte da intensificação agropecuária ocorreu às margens das duas principais rodovias do município e próxima a áreas urbanas, onde a logística para toda a cadeia produtiva é facilitada. Conclui-se que o fortalecimento das leis ambientais de controle e monitoramento do desflorestamento, a expansão das lavouras de grãos e a disponibilização de assistência técnica adequada permitiram um aumento da intensificação da pastagem no município de Paragominas entre os anos de 2004 e 2017 Abstract: With the growing world demand for agricultural products and the need to preserve the environment, the increase in production must come from an intensification of agriculture and livestock, thus, higher yield per productive area. Although the intensification is already occurring worldwide, there are few studies on the factors that drive it, its impacts, determinants and spatial patterns, being an important study for political decision making, production and land use planning with a view to food security environmental preservation. The Amazon region has experienced an intense land use change in the last decades; deforestation had a 71% reduction between the years 2004 and 2016, due to actions related to environmental control, credit restriction and engagement of the region's producers. These are now in a new context, where the expansion of productive areas is restricted and the intensification and diversification of production are the possible paths for development. This study verifies and analyzes the pasture intensification of one of the most representative municipalities of this scenario, Paragominas, in the state of Pará, which has a cattle ranch tradition and has become one of the largest grain producers in the state, leaving the environment ministry list of municipalities with most deforestation, recovering its economy. The overlap and statistical analysis of three land use maps (2004, 2008 and 2017) evidences the hypothesis obtained with national and field data, showing that approximately 51% of the remaining pasture areas were intensified, with most of the intensification occurred along the two main highways of the municipality and close to urban areas, where logistics for the entire production chain is facilitated. It was concluded that the strengthening of environmental laws to control and monitor deforestation, the expansion of grain crops and the provision of adequate technical assistance allowed an increase in pasture intensification in the municipality of Paragominas between 2004 and 2017 Mestrado Gestão de Sistemas na Agricultura e Desenvolvimento Rural Mestra em Engenharia Agrícola CNPQ 131138/2016-2 FAPESP 2014/26928-2.