1,323 research outputs found
Le bossu / par M. Paul Féval
No full text[Le bossu (français)]Collection : Le Siècle ; XXIICollection : Le Siècle ; XXIIAppartient à l’ensemble documentaire : UnivJeun0Contient une table des matièresAvec mode text
Odontoiatria e attività sportiva in età pediatrica - Problematiche ortognatodontiche e respirazione orale
No full textDeciduous dentition: anatomical study by m-CT
No full textEndodontics is the branch of deciduous teeth pediatric dentistry that deals with the treatment of the root canal system. The goal of therapy is to maintain as long as possible the element in the dental arch to prevent alterations of orthognathodontic, infectious, and functional history and eruptive sequence. Although manual instrumentation has been widely used and still preferred by some practitioners, has limitations that affect the actual ability to clean the channel, the ability to create steps, perforations, dentinal plugs and fractures of the instrument. On the other hand, the disadvantages are the high cost of the instruments in nickel-titanium, which must be frequently replaced, and the risk of compromising the stability of the tooth due to an excessive consumption of dentinal tissue. The use of computed microtomography (μCT) of extracted elements has a considerable advantage in the study of dental hard tissues. The purpose of this study was to analyze the anatomy of the endodontic system of the elements deciduous
Fracionamento de zinco em amostras de leite.
No full textFRACIONAMENTO DE ZINCO EM AMOSTRAS DE LEITE. Neste trabalho foram feitos estudos voltados ao preparo de amostras e à especiação química dos teores de zinco presentes em amostras de diferentes tipos de leite (bovinos, ovelha, cabra e origem vegetal (soja).Sob orientação da Dra. Ana Rita Araujo Nogueira
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Equity, diversity and inclusion in a GO-GN project: Adopting participants’ recommendations
No full textEquity, diversity and inclusion (EDI) has been a growing topic within the Open Education community, and some would argue that it has been underpinning the OE discourse since the beginning. However, access to free and online resources alone cannot be considered equitable, diverse and inclusive. For example, most open resources are only available in English, which limits access and reach for many learners around the world (Willems & Bossu, 2012).
EDI has been driving the Global OER Graduate Network’s (GO-GN) agenda since its foundation in 2013, but it was only in 2018 when its first project directly related to DEI was developed. The first phase of GO-GN EDI project focused on EDI practices in Open Education in Africa. Findings of this first stage informed the initial GO-GN guidelines for EDI (Bossu et al., 2019). The findings of phase 1 have also been used as a foundation for phase 2, which focused on EDI in Latin America.
GO-GN currently supports 116 PhD candidates and alumni registered at universities in 26 countries, however, of these members, only 30% conduct their research in the Global South (Weller et al., 2021). The concern is there that, even with all the efforts put into place to be open and a willingness to be diverse, the Global South is still under-represented within this community, which means that GO-GN is not reaching those who could potentially benefit the most from being part of the network. To address this gap and assist the fulfilment of its mission, GO-GN has embarked in a quest to push the EDI agenda by implementing some of the recommendations suggested by the participants of the above projects.
This presentation will explore key findings of these two EDI projects and present a plan for the implementation of some of the recommendations which include increasing support for Global South scholars and researchers in Open Education through a mentoring scheme that would help them to disseminate further their work. This would help to build capacity for GO-GN as well as increase the diversity of work being disseminate through the network. In this presentation, we will also provide an update on the progress of the implementation plan. Conference attendees will be asked to engage and provide their suggestions and views on the plan. We hope that this project will assist better representation from the Global South in GO-GN, and that we have the strategy and implementation tools in place to fulfil our aims in an intercultural, connected and open world.
References
Bossu, C., Pete, J., Prinsloo, P., & Agbu, J. F. (2019). How to tame a dragon: Scoping diversity, inclusion and equity in the context of an OER project.
Bossu, C. & Vladimirschi, V. (2020). Diversity, Equity and Inclusion in Latin America in the Context of an Open Education Initiative, presented at the Open Education Global 2020.
Weller, M., Pitt, B., Iniesto, F., Farrow, R., Bossu, C. and Vladimirschi, V. (2021). Annual Review 2021. Global OER Graduate Network.
Willems, J., & Bossu, C. (2012). Equity considerations for open educational resources in the glocalization of education. Distance Education, 33(2), 185–199
Effectiveness of plaque indicators and air polishing for the sealing of pits and fissures.
No full textSealing of pits and fissures is one of the most effective techniques in caries prevention: however incomplete removal of plaque debris, can cause lack of retention of the sealant. Sixty first permanent molars were sealed for this study. The teeth were divided into four groups. All teeth were isolated with a dental dam before cleaning and coronal polishing was performed with synthetic bristles or air polishing. Disclosing solution was used to reveal plaque. Three different operators performed cleanings and sealing. The results show that the plaque indicator was necessary to ensure complete cleansing of pit and fissures. PROPHYflex3 was the easiest and most effective device for removing plaque and debris. Synthetic bristles failed to thoroughly cleanse the surface in most attempts. Results suggest that pits and fissures should be cleaned with a plaque indicator and air polishers before placing a sealing material to ensure complete removal of plaque from the tooth
Enamel hypoplasia in coeliac children: a potential clinical marker of early diagnosis.
No full textTo assess at the scansion electron microscope (SEM) the structural aspects of enamel hypoplasia (EH) in coeliac disease (CD) with the aim to investigate our hypothesis of a possible significant difference between structural characteristics of EH in CD affected patients and EH of non-coeliac patients. If the presence of specific features of the EH associated with CD were demonstrated, these findings would represent for the dentist early non-invasive clinical markers of diagnosis of CD in case of suspected disease. We analysed at SEM two samples of enamel fragments from hypoplasic teeth, both deciduous and permanent, harvested from 10 coeliac children (18 permanent teeth, 6 deciduous teeth; study group) and 10 non-coeliac children (16 permanent teeth, 4 deciduous teeth; control group) treated for dental caries, dental extractions for extensive caries lesions or deciduous teeth exfoliation. Significant structural differences were noted between EH of non-coeliac patients and same dental ? lesion in the group with CD. In the study group, EH defects were predominantly located on the central and lateral incisors, upper and lower, both deciduous and permanent, and on the first permanent molars, and were always simmetrical. EH of permanent teeth of CD affected patients was characterised by prisms more irregularly distributed with irregular margins and less interprismatic substance than observed in non-coeliac EH. The deciduous teeth of the study group showed shorter enamel prisms with a non-parallel direction up to convergence and less interprismatic substance than observed in the control group. This morphological analysis at SEM of the hypoplasic enamel defects of a group of coeliac children, the first published in literature, demonstrates that the EH of deciduous and permanent teeth in CD is highly hypomineralised with shorter prisms, more irregularly distributed and less interprismatic substance than observed in the non-coeliac EH. More data are needed to validate the significance OF our observations with the aim to assess if this simple, non-invasive microscopic analysis can be considered effective for the early identification of silent cases of CD that otherwise would not be diagnosed in the paediatric age
Sull'usura degli alesatori endodontici. Osservazioni al microscopio elettronico a scansione
No full textGli Autori hanno analizzato al SEM la superficie di tre tipi di strumento endodontico prima e dopo il loro utilizzo canalare. Sono state valutate ultramicroscopicamente la morfologia della punta, della parte tagliente e l'andamento delle spire di ogni strumento nonchè la rifinitura complessiva del metallo con cui è stato foggiato
Biomechanical and physical characteristics of horizontally loaded lingual brackets
No full textThe Authors assess, by SEM analysis, biomechanical and physical characteristics of lingual orthodontic appliances of Ormco CO. Each part of the bracket structure has been observed and assessed
Produção e caracterização de material de referência de forrageira para nutrientes e contaminantes inorgânicos.
No full textTese (Doutor em Ciência área de concnetração Química analítica) - Universidade Federal de São Carlos, São Carlos. Sob orientação da Dra. Ana Rita de Araújo Nogueir
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