604 research outputs found
Studying changes in the practice of two teachers developing assessment for learning
This paper describes changes in the practice of two teachers, observed over an eighteen month period, who were participating in a study intended to support teachers in developing their use of assessment in support of learning. The design of the intervention allowed each teacher to choose for themselves which aspects of their practice to develop. Analysis of lesson observations, journal entries and interviews indicate that both teachers were keen to change their practice, but were concerned about the disruption to their established routines, and in particular about the potential for loss of control of their classes. Both teachers did effect significant changes in their classrooms, but these tended to be developments of existing preferred ways of working, rather than radical innovations. In conclusion, it is suggested that to be most effective, teacher professional development needs to be structured strongly enough to afford teacher growth, but flexible enough to allow different teachers to take their practice in different ways
Antidoping programme and biological monitoring before and during the 2014 FIFA World Cup Brazil.
BACKGROUND: The FIFA has implemented an important antidoping programme for the 2014 FIFA World Cup.
AIM: To perform the analyses before and during the World Cup with biological monitoring of blood and urine samples.
METHODS: All qualified players from the 32 teams participating in the World Cup were tested out-of-competition. During the World Cup, 2-8 players per match were tested. Over 1000 samples were collected in total and analysed in the WADA accredited Laboratory of Lausanne.
RESULTS: The quality of the analyses was at the required level as described in the WADA technical documents. The urinary steroid profiles of the players were stable and consistent with previously published papers on football players. During the competition, amphetamine was detected in a sample collected on a player who had a therapeutic use exemption for attention deficit hyperactivity disorder. The blood passport data showed no significant difference in haemoglobin values between out-of-competition and postmatch samples.
CONCLUSIONS: Logistical issues linked to biological samples collection, and the overseas shipment during the World Cup did not impair the quality of the analyses, especially when used as the biological passport of football players
Cortical fast-spiking parvalbumin interneurons enwrapped in the perineuronal net express the metallopeptidases Adamts8, Adamts15 and Neprilysin.
The in situ hybridization Allen Mouse Brain Atlas was mined for proteases expressed in the somatosensory cerebral cortex. Among the 480 genes coding for protease/peptidases, only four were found enriched in cortical interneurons: Reln coding for reelin; Adamts8 and Adamts15 belonging to the class of metzincin proteases involved in reshaping the perineuronal net (PNN) and Mme encoding for Neprilysin, the enzyme degrading amyloid β-peptides. The pattern of expression of metalloproteases (MPs) was analyzed by single-cell reverse transcriptase multiplex PCR after patch clamp and was compared with the expression of 10 canonical interneurons markers and 12 additional genes from the Allen Atlas. Clustering of these genes by K-means algorithm displays five distinct clusters. Among these five clusters, two fast-spiking interneuron clusters expressing the calcium-binding protein Pvalb were identified, one co-expressing Pvalb with Sst (PV-Sst) and another co-expressing Pvalb with three metallopeptidases Adamts8, Adamts15 and Mme (PV-MP). By using Wisteria floribunda agglutinin, a specific marker for PNN, PV-MP interneurons were found surrounded by PNN, whereas the ones expressing Sst, PV-Sst, were not
Neandertal and Denisovan DNA from Pleistocene sediments.
Although a rich record of Pleistocene human-associated archaeological assemblages exists, the scarcity of hominin fossils often impedes the understanding of which hominins occupied a site. Using targeted enrichment of mitochondrial DNA we show that cave sediments represent a rich source of ancient mammalian DNA that often includes traces of hominin DNA, even at sites and in layers where no hominin remains have been discovered. By automation-assisted screening of numerous sediment samples we detect Neandertal DNA in eight archaeological layers from four caves in Eurasia. In Denisova Cave we retrieved Denisovan DNA in a Middle Pleistocene layer near the bottom of the stratigraphy. Our work opens the possibility to detect the presence of hominin groups at sites and in areas where no skeletal remains are found
Formulating 'principles of procedure' for the foreign language classroom: A framework for process model language curricula
This article aims to apply Stenhouse's process model of curriculum to foreign language (FL) education, a model which is characterized by enacting principles of procedure which are specific to the discipline which the school subject belongs to. Rather than to replace or dissolve current approaches to FL teaching and curriculum development, this article seeks to improve and enrich communicative and task-based orientations with an additional criterion for assessing the educational worth of the tasks through which these orientations are developed. Unlike the objectives and competences models, principles of procedure provide an intrinsic justification of school curriculum by enacting the epistemological structure of any given area of knowledge in the educational process. Accordingly, the article will first justify the need to come up with a process model of curriculum for FL education which is built around such principles; then, it will formulate a basic framework that reflects the logical structure, concepts and epistemological perspectives of the language studies, as a first step to allowing these to enter the FL classroom and orient the teaching conducted in it; finally, it will present three tasks whose design was inspired by the abovementioned framework, and which were put into practice with Primary education English as a Foreign Language learners during the 2013 2014 and 2014 2015 academic years
Online peer assessment in higher education: a systematic review of literature in educational practices
Neste artigo procedemos a uma revisão sistemática da literatura sobre Online Peer Assessment (OPA) no Ensino Superior, mediadas por Tecnologias Digitais de Informação e Comunicação (TIC). Identificamos suas características, centrais e opcionais e mapeamos exemplos práticos (procedimentos e TIC) de OPA que poderão ser transversais, adaptáveis e aplicáveis em diversas unidades curriculares e regimes educacionais. Os resultados apontam para a utilização da OPA como uma estratégia que potencia a “avaliação para a aprendizagem”. Os referenciais teóricos subjacentes, os métodos de avaliação e os tipos de TIC utilizadas indicam seu direcionamento para um maior envolvimento e responsabilidade do aluno na sua aprendizagem. Evidenciamos na literatura que se busca desenvolver essas competências, dando ao aluno oportunidades com alguma regularidade para autoavaliar-se e avaliar seus pares por meio de feedback construtivo. Há também evidências de que dar ou produzir feedback é mais benéfico para a aprendizagem do que apenas recebê-lo, como também é cognitivamente mais exigente e envolve os alunos de forma mais ativa e os direciona ao pensamento crítico e a processos metacognitivos. A partir dos resultados alcançados, consideramos que a OPA, enquanto ferramenta cognitiva, contribui para a construção do conhecimento e para a reflexão sobre a aprendizagem. Um desafio que se coloca diz respeito ao desenvolvimento criativo com foco na diversificação e na inovação das práticas de avaliação no sentido de potenciar aprendizagens e resultados acadêmicos, em atenção às necessidades de aprendizagem que se manifestam frente às expectativas da educação atual e futura e às exigências da sociedade.In this research a systematic review of literature about Online Peer Assessment (OPA) in higher
education, mediated by Information and Communication Technology (ICT), was carried out.
Optional and central characteristics and its practices (procedures and ICT) were identified and
mapping. These procedures and practices may be transversal, adaptable and applied in several
curriculum units and educational regimes. The results point to the use of OPA as a strategy that
enhances “assessment for learning”. The theoretical framework, the methods of assessment and
the kinds of ICT used indicate directions for greater involvement and responsibility from the part
of the student in his/her learning. Theoretical framework identifies the need to develop students’
skills, providing them with opportunities for self-assessment and peer assessment on a regular
basis through constructive feedback. There is also evidence that to give or receive feedback is more
beneficial for learning than just receiving it. It is also cognitively more demanding and directs the
students to critical thinking and metacognitive processes. From the results obtained, OPA is seen as
a cognitive tool, contributing to the building of knowledge and to reflection about learning. Issues
for further reflection are also identified such as the creative development of assessment methods
with a focus on diversity and innovation in order to enhance students’ learning and academic
results, taking into account their learning needs in face of the expectations of current and future
education and the demands of society.CIEC - Centro de Investigação em Estudos da Criança, IE, UMinho (UI 317 da FCT), PortugalFundos Nacionais através da FCT (Fundação para a Ciência e a Tecnologia) e cofinanciado pelo Fundo Europeu de Desenvolvimento Regional (FEDER) através do COMPETE 2020 – Programa Operacional Competitividade e Internacionalização (POCI) com a referência POCI-01-0145-FEDER-007562info:eu-repo/semantics/publishedVersio
Preschool literacy and reading performance in primary school
A literacia pré-escolar tem recebido uma crescente atenção. Neste estudo, participaram 70 crianças que iniciaram
o 1.º ano de escolaridade no ano letivo 2009/10 e que, na educação pré-escolar, frequentaram três instituições com abordagens
diferenciadas de leitura e de escrita. O estudo inclui quatro medidas repetidas no tempo nas áreas da fonologia, reconhecimento
de letras, palavras e velocidade de leitura. Os resultados sugerem que a abordagem específica à leitura na educação pré-escolar
condiciona o desempenho da leitura na instrução primária. Contudo, essa influência parece ser atenuada com o tempo. Por outro
lado, verificou-se que sujeitos que receberam instrução direta de leitura em idade pré-escolar (mas não treino fonológico) obtêm
resultados significativamente superiores em tarefas fonológicas aos de sujeitos que receberam treino fonológico prolongado
(mas não de leitura).The debate regarding kindergarten literacy has received increasing attention and social visibility. In this study, participants are 70 children who attended first grade in 2009/2010. Participants attended three kindergartens with unique approaches to reading. A four wave repeated measure design was conducted to investigate the growth of the children in phonological awareness, letter recognition, word recognition, and reading speed. Results suggest that the approach towards reading and writing in kindergarten affects children's performance in grades 1 and 2 of elementary school. This influence, however, seems to fade over time. Moreover, results show that children who received formal reading instruction in kindergarten, perform significantly better in phonological tasks than children who received direct and extended phonological instruction.(undefined)info:eu-repo/semantics/publishedVersio
« Artistes ordinaires ? » Entretien avec Howard S. Becker
M.P. & G.B. : Pouvez-vous nous parler de l’origine de l’expression « musiciens de danse » dans Outsiders ? Qu’est-ce que cela signifiait à l’époque ? H.S.B. : J’ai ajouté le complément « de danse » au nom « musiciens » de manière à faire la différence entre les gens dont je parlais et les autres musiciens qui jouaient dans d’autres contextes organisés à la même époque. Qui étaient-ils ? J’en connaissais au moins quelques-uns. Par exemple, il y avait ceux qui adhéraient au syndicat des musicie..
“Ordinary Artists?” An Interview with Howard S. Becker
M.P. & G.B.: Could you tell us about the origin of the expression “dance musicians” in Outsiders? What did it mean at the time? H.S.B.: The reason I added the adjective “dance” to the noun “musicians” was to distinguish the people I was talking about from other kinds of musicians playing in other organized settings at the same period. Who were these others? I think I was probably quite aware of at least the following specialized groups who were in the musicians’ union but were not “my kind of..
Low power measurements of the quality factor of an open resonator with stepped mirrors
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