Search results for "CAD"
showing 10 items of 5323 documents
Comparative histological and immunohistochemical study of ameloblastomas and ameloblastic carcinomas
2017
Background This study aimed to compare the histological and immunohistochemical characteristics of ameloblastomas (AM) and ameloblastic carcinomas (AC). Material and Methods Fifteen cases of AM and 9 AC were submitted to hematoxilin and eosin (H&E) and immunohistochemical analysis with the following antibodies: cytokeratins 5,7,8,14 and 19, Ki-67, p53, p63 and the cellular adhesion molecules CD138 (Syndecan-1), E-cadherin and β-catenin. The mean score of the expression of Ki-67 and p53 labelling index (LIs) were compared between the groups using the t test. A value of p<0.05 was considered to be statistically significant. Results All cases were positive for CKs 5, 14 and 19, but negative fo…
Applying Student Development Theories: Enhancing International Student Academic Success and Integration
2019
Student development theories (SDT) focus on the growth and change occurring in students while attending higher education. In this article, we propose that the application of student development theories supports holistic development in international students and helps us understand international students’ academic success and integration. We outline a combination of student development models, derived from SDT, and interact them with concepts from international student mobility and migration (ISM). These models, when applied to student services, may assist higher education institutions (HEIs) in designing student services for international students enhancing academic success and integration.
Ultra-High Energy Neutrinos at the Pierre Auger Observatory
2013
The observation of ultrahigh energy neutrinos (UHE nu s) has become a priority in experimental astroparticle physics. UHE nu s can be detected with a variety of techniques. In particular, neutrinos can interact in the atmosphere (downward-going nu) or in the Earth crust (Earth-skimming nu), producing air showers that can be observed with arrays of detectors at the ground. With the surface detector array of the Pierre Auger Observatory we can detect these types of cascades. The distinguishing signature for neutrino events is the presence of very inclined showers produced close to the ground (i.e., after having traversed a large amount of atmosphere). In this work we review the procedure and …
Experimental Evolution Reveals a Genetic Basis for Membrane-Associated Virus Release
2021
Many animal viruses replicate and are released from cells in close association to membranes. However, whether this is a passive process or is controlled by the virus remains poorly understood. Importantly, the genetic basis and evolvability of membrane-associated viral shedding have not been investigated. To address this, we performed a directed evolution experiment using coxsackievirus B3, a model enterovirus, in which we repeatedly selected the free-virion or the fast-sedimenting membrane-associated viral subpopulations. The virus responded to this selection regime by reproducibly fixing a series of mutations that altered the extent of membrane-associated viral shedding, as revealed by fu…
El impacto social de la comunicación institucional del I+D+i en las universidades españolas
2022
Esta tesis tiene como objetivo principal estudiar la comprensión sobre la comunicación pública de la ciencia que se realiza en las universidades españolas, en concreto, desde los gabinetes de comunicación institucional y las Unidades de Cultura Científica y de Innovación (UCC+i). Una de las hipótesis principales de trabajo es que más allá de la divulgación científica que pueda realizar el propio personal investigador, el papel que desempeñan las instituciones en el ámbito de la comunicación pública del I+D+i puede contribuir a aumentar la visibilidad e impacto de los científicos. La investigación se presenta en dos presentaciones en congresos y cuatro estudios basados en metodologías cualit…
Enseignement et recherche sont inséparables
2020
Les politiques publiques françaises concentrent les moyens de recherche sur quelques “sites”, aux dépens de régions entières, creusant les inégalités entre universités dites “d’élite” ou “de masse”. Mais de nombreux travaux empiriques démontrent l’inefficacité d’une telle concentration des moyens.
How the sociological environement of university residence affects making friendship and students' academic success
2013
By means of a theoretical model, this research investigated how the socioecological environment of university residence affects making friendship in the latter and students' academic success. The model contain four physical-environmental characteristics (distal variables): type of university residence (traditional, conventional), the location (outside or in the city center), and percentages of girls and of advantaged students. It also includes three social climate dimensions of university residence: Order and organization, Cohesion, and Open-mindedness (proximal variables, Bennacer, 2005). Making friendship and students' academic success were estimated, respectively, by following items: "Di…
Promuovere le competenze strategiche e il successo accademico degli studenti universitari mediante il tutoraggio tra pari online a distanza
2021
Il 26 febbraio 2021 è stata avviata una ricerca-intervento ispirata alla teoria dell’educazione personalizzata. Attualmente, 19 studenti (17 femmine e 2 maschi) del secondo anno del corso di studi triennale in Scienze dell’Educazione attivato presso l’Università degli Studi di Palermo, stanno partecipando in qualità di peer-tutor a una iniziativa di didattica universitaria. Questa iniziativa persegue due obiettivi: promuovere l’autoefficacia percepita (GSE), la percezione delle proprie competenze strategiche (QPCS) e la prospettiva temporale (ZTPI) in un gruppo di 35 studenti che, giunti al secondo anno del medesimo corso di studi, non hanno ancora sostenuto da 1 a 6 esami tra quelli previs…
De huertas y barracas a galaxias faraónicas. Percepciones sociales sobre la mutación de la ciudad de Valencia
2013
Valencia se ha convertido en una metrópolis clónica glocalizada gracias a un espectacular crecimiento que se ha articulado sobre grandes proyectos urbanísticos y eventos mediáticos. Con ellos, el gobierno municipal, con el apoyo del autonómico, ha tratado de ocupar una posición favorable en el mercado de las ciudades orientadas estratégicamente al turismo cultural y de entretenimiento. El objetivo de este artículo es realizar una aproximación a la huella que han dejado estas transformaciones en las representaciones que de Valencia se hacen sus ciudadanos. Ofreceremos una panorámica de los elementos básicos que conforman las diferentes percepciones y expectativas sociales sobre la ciudad. La…
The drivers of customer satisfaction for academic library services: managerial hints from an empirical study on two Italian university libraries usin…
2015
The intent of this qualitative research is to investigate and understand the requisites of customer satisfaction for academic libraries’ users and to give managerial hints for the implementation of user centred academic library services. To this aim, we analyse the library services of two Italian Universities (the Faculty of Economics of University of Palermo and the Central Library of the University of Salerno) to find relations and congruencies and to evaluate the perceived relevance of the tangible and intangible aspects of these services. In the preliminary phase of the research, we conducted both focus groups and individual interviews involving students or researchers who regularly use…