171,240 research outputs found
L'oeuf de Pascal : roman d'un voyage / de Christophe Mignot...
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Gunther Cyranek, S. C. Bhatnagar (eds), Technology transfer for development, the prospects and limits of information technology
No full textMignot-Lefebvre Yvonne. Gunther Cyranek, S. C. Bhatnagar (eds), Technology transfer for development, the prospects and limits of information technology. In: Tiers-Monde, tome 35, n°138, 1994. Technologies de communication et d'information au Sud : la mondialisation forcée, sous la direction de Yvonne Mignot-Lefebvre. pp. 449-451
Os sentidos atribuídos pelas crianças aos seus cadernos escolares
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Educação, Programa de Pós-Graduação em Educação, Florianópolis, 2013.Durante o passar dos séculos, os cadernos escolares vêm sofrendo um processo de naturalização. Todavia, o que se percebe é que, ainda que naturalizados, o uso deste material não é natural para as crianças, que cotidianamente demonstram suas dificuldades ao manusear este objeto. Este processo de naturalização, associado aos usos deste material nas salas de aula dos dias de hoje é que nos motiva a pensar e discutir, acerca dos sentidos atribuidos pelas crianças aos seus cadernos escolares. Assim, esta pesquisa tem como objetivo principal investigar os usos e os sentidos atribuídos pelas crianças, no primeiro ano do Ensino Fundamental, aos seus cadernos escolares. Deste modo, este estudo de cunho qualitativo e de tipo etnográfico embasou-se nos seguintes procedimentos metodológicos: a observação participante do processo de ensino-aprendizagem; encontros informais com os alunos e com a professora; intervenção; análise de documentos (cadernos escolares); entrevista semiestruturada; e diário de pesquisa. A pesquisa foi realizada em duas etapas: a primeira delas consistiu no levantamento bibliográfico, realizado com o intuito de mapear os estudos já desenvolvidos sobre a temática e contextualizar historicamente a questão problematizada; e a segunda etapa consistiu na pesquisa empírica realizada em duas turmas de primeiro ano de uma escola municipal de Florianópolis, na qual foi observada uma turma no ano de 2012.2 e outra turma no ano de 2013.1. Foram realizadas entrevistas semiestruturadas com as crianças e com a professora regente de cada turma. Os dados foram analisados a partir da Análise de Conteúdo, tendo como referência as ideias de Bardin (2011). Os dados analisados mostram o quanto os sentidos atribuídos a este material pelos professores diferem dos sentidos atribuídos a este material pelas crianças. Estes indicativos revelam o quanto o uso do caderno escolar ainda é um tema que necessita de reflexão, discussão e planejamento, para que, de fato, este material atenda a finalidades pedagógicas.Abstract : During the centuries, the notebooks are undergoing a process of naturalization. However, what we see is that even naturalized, the use of this material is not natural for children who daily demonstrate their difficulties when handling this material. This naturalization process together the use of these materials in the classroom of the day today is what motivates us to think and discuss about the meanings attributed by the children at their school notebooks. Thus, this research aims at investigating the uses and meanings attributed by the children in the first year of primary school to their school notebooks. Thus, this study of a qualitative and ethnographic based on the following instruments: participant observation of teaching and learning, informal meetings with students and with the teacher, intervention, analysis of documents (notebooks), semi-structured interviews and diary research. The research was conducted in two stages: the first is the literature review conducted in order to map the studies already undertaken on the theme and contextualize historically problematic issue and the second step is the empirical research carried out in two groups of first year of a municipal school in Florianópolis in which there was a class in the year 2012.2 and another class in the year 2013.1. Were conducted semi-structured interviews with the children and with the teacher every class regent. Data were analyzed using the content analysis, with reference to the ideas of Bardin (2011). The data analyzed show us how the meanings attributed to this material by teachers differ from the meanings attributed to this material by children. These indicators show how the use of school notebook is still a topic that needs reflection, discussion and planning, so that in fact this material meets the educational purposes
Introduction
No full textIn this introductory chapter, the editors contextualise the topic of returning foreign fighters and provide a general overview of the book’s structure and contents, presenting its different parts and chapters
Mignot (Xavier), Recherches sur le suffixe -της, -τητος (-τάς, -τατος) des origines à la fin du IVe siècle avant J.-C
No full textLeroy Maurice. Mignot (Xavier), Recherches sur le suffixe -της, -τητος (-τάς, -τατος) des origines à la fin du IVe siècle avant J.-C. In: Revue belge de philologie et d'histoire, tome 55, fasc. 1, 1977. Antiquité — Oudheid. p. 212
Mignot (Xavier), Recherches sur le suffixe -της, -τητος (-τάς, -τατος) des origines à la fin du IVe siècle avant J.-C
No full textLeroy Maurice. Mignot (Xavier), Recherches sur le suffixe -της, -τητος (-τάς, -τατος) des origines à la fin du IVe siècle avant J.-C. In: Revue belge de philologie et d'histoire, tome 55, fasc. 1, 1977. Antiquité — Oudheid. p. 212
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Role of solvent in enhancing the production of butyl levulinate from fructose
No full textThe use of alkyl levulinates is growing interest in fuels. Adding n-butyl levulinate (BL) to fuels presents some benefits compared to ethyl levulinate. The conventional production route of BL is from the esterification of levulinic acid, but the latter compound presents some corrosion issues. Alcoholysis of fructose by butanol over cation exchange resins (solid catalyst) seems to be a better alternative. The effect of water addition, solvent, swelling effect (from the cation exchange resin), and fructose solubility at temperatures higher than 25 °C are unclear on this reaction. To understand these effects, the alcoholysis of fructose by butanol at 110 °C in different solvents, e.g., gamma-valerolactone (GVL), were studied in a pressurized autoclave in an inert environment. The dissolution study was conducted in a temperature range of 20–120 °C in different solvents. The concentration profiles of fructose, 5-(hydroxymethyl)furfural (HMF), 5-(butoxymethyl)furfural (BMF) and BL were analyzed in different solvents: butanol/water, butanol, butanol/GVL/water and butanol/GVL. We found that using a butanol/GVL (70/30 wt%) solvent is better from the conversion and dissolution viewpoints
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