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Maria Emilia Ricardo Marques 《Educational Media International》2013,50(3):119-123
Abstract This article discusses the role played by socio‐educational documents, from schools or local media libraries, in the everyday life of the linguistic minority learner. 相似文献
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Emilia Afonso Nhalevilo 《Cultural Studies of Science Education》2012,7(2):447-450
This paper is a response to Maria Andree’s paper. Andree tells in the paper how mistakes in practical lessons may be critical
events to change students’ attitudes in regard science. While traditionally mistakes in practical lessons could obligate students
to repeat the experiment in order to get the ‘right result’ in the paper we have a good example how we can use the incident
to potentiate students’ participation. In my response I illustrate how transferable is what Andree speaks about but I put
forward further reflections about the traditions that may act as impediment for students’ participation. I thus suggest that
the critical paradigm should be a component in reflecting about science classroom practices in order to alter the traditions. 相似文献
44.
Investigations of people's understanding of the evolution of species have focused mainly on secondary school and university students. Very few investigations have taken into consideration younger students, and none have related children's ideas about the origin of species to formal instruction on this topic. To help fill this gap, the present study examines the effect of this instruction in elementary school children by comparing Italian second graders (n = 21; age = 7 years, 1 month, to 8 years, 7 months) with third graders (n = 18; age = 8 years, 1 month, to 9 years, 4 months) who had been taught about “the earth before humans” for several months in keeping with the Italian National Syllabus for this grade level. Semistructured interviews were used to examine children's thoughts about speciation. The majority of second graders used a creationist framework, whereas most third graders used a mixed framework (referring to both creation and evolution) or an evolutionary framework. However, children did not know about the mechanism of evolution and considered it to be the result of the passage of time, the use and disuse of body parts, or the need to adapt to a changing environment, as suggested by their teacher and textbooks. 相似文献
45.
Jettison is the practice of throwing goods overboard in order to lighten and consequently save a vessel, as well as the lives of those on board. This phenomenon has long been part of seafaring, with the dangers of navigation not having changed since ancient times. Accordingly, various bodies of maritime law emerged in the medieval era to handle the consequences of such events. This article will discuss how the principles of jettison and general average introduced by the Lex Rhodia and maintained in Roman law were understood in some medieval regulations. Although most legal texts indicate a common understanding of the principles of general average, opinions vary widely on details of procedure and events covered by the rulings. This analysis will show how the rules of jettison and general average are treated in different contexts and by the diverse societies administering them. 相似文献
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Katja Boehm Christa Raak Horst Christian Vollmar Thomas Ostermann 《Health information and libraries journal》2010,27(2):93-105
Background: Complementary and alternative medicine (CAM) has succeeded to implement itself in the academic context of universities. In order to get information on CAM, clinicians, researchers and healthcare professionals as well as the lay public are increasingly turning to online portals and databases, which disseminate relevant resources. One specific type of online information retrieval systems, namely the database, is being reviewed in this article. Question: This overview aims at systematically retrieving and describing all databases covering the field of CAM. One of the requirements for inclusion was that the database would also have to be published in a medical journal. Data sources: The databases amed , CAMbase , embase , and medline /Pub Med were searched between December 2008 and December 2009 for publications relevant to CAM databases. The authors’ specialist library was also searched for grey literature to be included. Study selection: All included databases were then visited online and information on the context, structure and volume of the database was extracted. Main results: Forty‐five databases were included in this overview. Databases covered herbal therapies (n = 11), traditional Chinese medicine (n = 9) and some dealt with a vast number of CAM modalities (n = 9), amongst others. The amount of time the databases had been in existence ranged from 4 to 53 years. Countries of origin included the USA (n = 14), UK (n = 7) and Germany (n = 6), amongst others. The main language in 42 of 45 databases was English. Conclusions: Although this overview is quite comprehensive with respect to the field of CAM, certain CAM practices such as chiropractic, massage, reflexology, meditation or yoga may not have been covered adequately. A more detailed assessment of the quality of the included databases might give additional insights into the listed resources. The creation of a personalised meta‐search engine is suggested, towards which this overview could be seen as a first step. 相似文献
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Biffi E Piraino F Pedrocchi A Fiore GB Ferrigno G Redaelli A Menegon A Rasponi M 《Biomicrofluidics》2012,6(2):24106-2410610
Spatially and temporally resolved delivery of soluble factors is a key feature for pharmacological applications. In this framework, microfluidics coupled to multisite electrophysiology offers great advantages in neuropharmacology and toxicology. In this work, a microfluidic device for biochemical stimulation of neuronal networks was developed. A micro-chamber for cell culturing, previously developed and tested for long term neuronal growth by our group, was provided with a thin wall, which partially divided the cell culture region in two sub-compartments. The device was reversibly coupled to a flat micro electrode array and used to culture primary neurons in the same microenvironment. We demonstrated that the two fluidically connected compartments were able to originate two parallel neuronal networks with similar electrophysiological activity but functionally independent. Furthermore, the device allowed to connect the outlet port to a syringe pump and to transform the static culture chamber in a perfused one. At 14 days invitro, sub-networks were independently stimulated with a test molecule, tetrodotoxin, a neurotoxin known to block action potentials, by means of continuous delivery. Electrical activity recordings proved the ability of the device configuration to selectively stimulate each neuronal network individually. The proposed microfluidic approach represents an innovative methodology to perform biological, pharmacological, and electrophysiological experiments on neuronal networks. Indeed, it allows for controlled delivery of substances to cells, and it overcomes the limitations due to standard drug stimulation techniques. Finally, the twin network configuration reduces biological variability, which has important outcomes on pharmacological and drug screening. 相似文献
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Novica Zarvić Carl Stolze Matthias Boehm Oliver Thomas 《International Journal of Information Management》2012
In an ever more globalised world IT (Information Technology) managers increasingly have to support value creation within inter-organisational collaboration settings. Such organisational forms with their inherent complexity require specific approaches for their IT management within. Especially important for unleashing the chances of networked arrangements is the right form of IT Governance. Choosing the right arrangement for IT Governance is heavily dependent on understanding the concepts on which such business constellations are built. In this paper we provide therefore first a systematically derived, graph-based perspective on the key terms of inter-organisational collaboration. Based on this understanding of concepts and structured representations of inter-organisational dependencies we present interorganisational governance practices for IT. Specifically, we assign accountabilities to top executive roles from both IT and business. By keeping a holistic perspective, the insights gained in this study are highly relevant for strategic information management in terms of Business-IT Alignment as well as monitoring and controlling of inter-organisational information infrastructures in a rapidly changing business environment. 相似文献
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Emilia Ferreiro 《Infancia y Aprendizaje》2019,42(1):1-36
This text presents an epistemological option for beginning literacy which departs from traditional options in several respects: (1) objectivity is not assumed as a starting point but as an ending fact (as an aspiration more than a reality); (2) all research communities adopt certain paradigms as their unquestioned ‘epistemic framework’ which serve to validate methodological and theoretical approaches without discussion; (3) situating oneself at the boundaries of this ‘unquestioned scientificity’ reveals useful data worth bearing in mind in the specific field discussed here: the early stages of the cognitive approach to the object of ‘written language’. This text defends the empirical interest of Jean Piaget’s theory to incorporate a theoretical object not thematized by this researcher: written language. It debates the irrelevance of interpretations inspired by Piaget yet based on a purely applicationist vision of the theory. Constructivism is constructed by testing new hypotheses on new objects. That is the persistent message of this text, which provides data to support each claim about development. 相似文献
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Carola Boehm 《Learning, Media and Technology》1999,24(3):177-189
In a time where the Internet becomes the platform, the browsers become the operating system, and applications become services, a digital library project set in the performing arts has to define new methods of storing and distributing time‐based data to be able to serve quality and quantity information across wide area networks. The future information services will have to bear the weight of extensive metadata management of time‐based media (see Fig. 1) in order to facilitate intelligent access and delivery for the performing arts user community. 相似文献