História ambiental: um olhar prospectivo

Examination of methodological approaches and work possibilities for historians in the research and teaching of history of environment, its themes and potential objects of studies. The attention to books and articles helps on this balance and on the identification of future routes for the Environmental History in Brazil. This historiographical practice has been keeping, among us, a salutary opening for the dialogue with the foreign historiography, with an increasing valorization of the research in Latin America and with social science and natural subjects. The incipient Foreign Exchange Program suggests the tasks and the success found by this approach will be result of the interaction between researchers, projects in group, circulation of publications and institution strengthening of the historical knowledge in the beginning of the century.

Educação a distância online: potencialidades para a formação de professores que ensinam matemática

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Adesivo tecidual de fibrina e sua aplicação na implantodontia

The purpose of this literature review was to evaluate the use of fibrin tissue adhesive in implant dentistry. Materials and Methods: A literature search of Medline-PubMed for articles published, describing the use of fibrin tissue adhesive in implant dentistry was performed and articles were critically reviewed. Results: The literature review reveals clinical trials and experimental studies with regard to the use of fibrin tissue adhesive in implant dentistry. This material consists of 2 components: highly purified, freeze-dried human fibrinogen with factor XIII and a starter solution containing human thrombin. Clotting factor XIII is admitted for reinforcement of the fibrin network. The components are reconstituted before use and when mixed form a clot by mimicking the terminal phase of the physiological clotting cascade. Several studies showed that fibrin tissue adhesive is fully absorbed by macrophages within 2 weeks of application. Adhesive fibrin tissue may be used for to prevent bone loss, to create contour in the periimplant soft tissue and osseous tissue, to sculpt emergence profile for prosthetic components and to mimic tissue architecture. In the last years fibrin tissue adhesive also find use as material for the controlled delivery of drugs and biologics. Conclusions: The fibrin tissue adhesive presents good properties such as biocompatibility, hemostatic properties and ability to break down like the physiologic clot. This material, alone or associated with other materials, can be used with the implants immediately after extraction. In this condition it brings the necessary anchoring and efficient maintenance of osseous/mucosal contour, which it is important for the clinical success.

Terapéutica alternativa asociada al bruxismo: revisión de literatura

The aim of this study was to review the literature in order to discuss the main and the most effective therapeutic activities to control the nocturnal bruxism. To identify the studies included in this review, it was conducted a detailed and advanced search strategy in the PubMed and Medline databases. It was used as KEY WORDS: bruxism, therapeutics and drug therapy. Inclusion criteria were: case reports, randomized controlled trials, in vitro studies, literature reviews and systematic reviews with or without meta-analysis of the past 10 years that addressed the theme. Exclusion criteria were: articles without abstract, animal studies, articles whose first language was not English and articles from journals that do not belong to the dentario field. From a total of 83 articles, after an analysis according to the inclusion and exclusion criteria, 33 articles were selected. Despite the fact that there is a small number of prospective clinical studies with high degree of reliability and most studies that evaluated the alternative treatments effectiveness are isolated case reports, the current literature shows that the use of botulinum toxin has been shown to be effective in the control of nocturnal bruxism. On the other hand, important aspects such as transitory effect, safe dosage and application technique are still little discussed, then, further studies are needed to have these doubts clarified.

Sistemas de retenção intrarradicular: considerações teóricas e comportamento biomecânico

The aim of this study was to review the current scientific literature to discuss the biomechanical behavior and characteristics inherent to both cast post and core and the prefabricated posts used in the practice of restoring endodontically treated teeth. To identify studies of this review, it was performed a detailed and advanced search strategy to the databases PubMed and Medline. It was used as descriptors: endodontically treated teeth, post, core, fiber post and metal post. Inclusion criteria were: clinical trials, randomized controlled trials, in vitro studies, literature reviews and systematic reviews with or without meta-analysis of the last 10 years that addressed the theme. Exclusion criteria were: articles without abstracts, animal studies, articles whose language was not English and articles from journals that do not belong to the Dentistry field. Of a total of 35 articles, after an analysis according to inclusion and exclusion criteria, 23 articles were selected. Most of the current scientific literature indicates that the prefabricated fiber reinforced and ceramic posts should be appointed for endodontically treated teeth that have a minimum height of 2mm ferrule. As for the cast metal cores, along with pre-fabricated metal represent a good prosthetic option, when weakened teeth have to be restored for any reason. Despite the large number of studies, there is still a lack of longterm prospective studies that evaluate the effectiveness of these posts in the treatment of endodontically treated teeth.

A Revista Criança fala aos professores: imagens de criança e a educação Pré-Escolar

Pós-graduação em Educação Escolar - FCLAR

Estratégias de prevenção e contenção do bullying nas escolas: as propostas governamentais e de pesquisa no Brasil e na Espanha

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Técnicas estatísticas utilizadas em climatologia geográfica: diagnóstico e propostas

Pós-graduação em Geografia - FCT

As vozes e as visões dos catadores de materiais recicláveis sobre o meio ambiente

Pós-graduação em Serviço Social - FCHS

Trends in Funding, Internationalization, and Types of Study for Original Articles Published in Five Implant-Related Journals Between 2005 and 2009

Purpose: The aims of this study were to evaluate the trends in funding, geographic origin, and study types of original articles in the dental implant literature and to investigate the relationships among these factors. Materials and Methods: Articles published in Clinical Oral Implants Research, The International Journal of Oral & Maxillofacial Implants, Clinical Implant Dentistry and Related Research, Implant Dentistry, and Journal of Oral Implantology from 2005 to 2009 were reviewed. Nonoriginal articles were excluded. For each article included, extramural funding source, geographic origin, and study type were recorded. Descriptive and analytic analyses (alpha = .05), including a logistic regression analysis, and chi-square test were used where appropriate. Results: of a total of 2,085 articles published, 1,503 met the inclusion criteria. The most common source of funding was from industry (32.4%). The proportion of studies that reported funding increased significantly over time. Europe represented the highest percentage (55.8%) of published articles. Most of the articles reported on clinical studies (49.9%), followed by animal studies (25.9%). Articles from Asia and South America and animal and in vitro studies were significantly more likely to be funded. Conclusion: Almost half of the original dental implant articles were funded. The trend toward internationalization of authorship was evident. A strong association was observed between funding and geographic origin and between funding and study type. Most studies in North America and Europe were clinical studies and supported by industry, whereas a greater proportion of studies in Asia and South America were in vitro or animal studies funded through government resources. INT J ORAL MAXILLOFAC IMPLANTS 2012;27:69-76

Differences between ADEA annual session poster abstracts and their corresponding full published articles

The purpose of this study was to investigate differences between abstracts of posters presented at the 79th (2002) and 80th (2003) Annual Session & Exhibition of the American Dental Education Association (ADEA) and the published full-length articles resulting from the same studies. The abstracts for poster presentation sessions were downloaded, and basic characteristics of the abstracts and their authors were determined. A PubMed search was then performed to identify the publication of full-length articles based on those abstracts in a peer-reviewed journal. The differences between the abstract and the article were examined and categorized as major and minor differences. Differences identified included authorship, title, materials and methods, results, conclusions, and funding. Data were analyzed with both descriptive and analytic statistics. Overall, 89 percent of the abstracts had at least one variation from its corresponding article, and 65 percent and 76 percent of the abstracts had at least one major and minor variation, respectively, from its corresponding article. The most prevalent major variation was in study results, and the most prevalent minor variation was change in the number of authors. The discussion speculates on some possible reasons for these differences.

Novel wireless-communicating textiles made from multi-material and minimally-invasive fibers

The ability to integrate multiple materials into miniaturized fiber structures enables the realization of novel biomedical textile devices with higher-level functionalities and minimally-invasive attributes. In this work, we present novel textile fabrics integrating unobtrusive multi-material fibers that communicate through 2.4 GHz wireless networks with excellent signal quality. The conductor elements of the textiles are embedded within the fibers themselves, providing electrical and chemical shielding against the environment, while preserving the mechanical and cosmetic properties of the garments. These multi-material fibers combine insulating and conducting materials into a well-defined geometry, and represent a cost-effective and minimally-invasive approach to sensor fabrics and bio-sensing textiles connected in real time to mobile communications infrastructures, suitable for a variety of health and life science applications.