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11.
Piperno, a Late Quaternary magmatic rock cropping out on the eastern side of the Campi Flegrei (Italy), is probably the most important building stone of Naples, used over a time-span from at least the Roman age until the beginning of the 20th century. Despite its wide diffusion in the monumental architecture of Naples, very little is known about this rock, as regards its technical features, as well as the geological aspects. This paper aims at providing a first overall contribution towards a rediscovery of this long-time-used material, in view of careful restoration works, which nowadays at Naples only take into account the proper geological features of the stone in a few peculiar cases. Thus, it seems of extreme importance to understand the basic parameters of Piperno and, above all, its response to weathering agents. Main mineralogical, petrographical and engineering–geological properties are presented here for the first time, with specific reference to two sampling areas, located at Pianura and Soccavo, in the western sector of the Neapolitan urban area. As far as many of its physico–mechanical features are concerned, Piperno extends over a wide range of values, which allow different varieties of the rock to be identified. This preliminary result is seemingly in accordance with data from old historical literature, which stated the existence of six horizons in the Piperno formation.  相似文献   
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This paper proposes an empirical analysis of several scientists based on their time regularity, defined as the ability of generating an active and stable research output over time, in terms of both quantity/publications and impact/citations. In particular, we empirically analyse three recent bibliometric tools to perform qualitative/quantitative evaluations under the new perspective of regularity. These tools are respectively (1) the PY/CY diagram, (2) the publication/citation Ferrers diagram and triad indicators, and (3) a year-by-year comparison of the scientists’ output (Borda's ranking). Results of the regularity analysis are then compared with those obtained under the classical perspective of overall production.The proposed evaluation tools can be applied to competitive examinations for research position/promotion, as complementary instruments to the commonly adopted bibliometric techniques.  相似文献   
14.
In the present work, an analytical characterization of painted plaster samples coming from ancient buildings dated back to 2nd cent. B.C., located in Licata (Sicily, Southern Italy), has been carried out. The investigation has been performed through different spectroscopic techniques: X-ray fluorescence (XRF) using an handheld energy-dispersive XRF analyzer, scanning electron microscopy equipped with an Energy Dispersive Spectrometry microanalysis detector (SEM-EDS) and Fourier transform infrared absorbance spectroscopy (FT-IR). The main goal is to identify the plaster and pigments material. In particular, the XRF investigation of surfaces is the first step for a preliminary elemental characterization. Then, through SEM-EDS measurements, a quantitative analysis of the chemical composition of the plaster and the pigmenting agents along with eventual components related to deterioration processes has been obtained. Finally, FT-IR absorbance spectra have proven to be a useful tool to investigate the molecular nature of the used materials.  相似文献   
15.
The article begins by drawing a distinction between the concepts of “curriculum” and “programme of study”, and goes on to show that curriculum reform involves much more than simply rewriting programmes of study. The reforms that are presently sweeping across education systems throughout the world qualify, in many cases, as true paradigm revolutions, given the magnitude of the transition from an objectives-based to a competency-based pedagogy. The authors discuss the complex nature of a situated approach to competence by exploring the theoretical foundations of a number of contemporary perspectives: situated action/cognition, distributed cognition/intelligence, collective intelligence and enaction. The value of a situated approach to competence is that it goes beyond an objectives-based pedagogy, while at the same time incorporating the best of what it has to offer. Original language: French Philippe Jonnaert (Belgium) Doctoral degree in educational studies from the Université de Mons; formerly, a professor at the Université de Louvain-la-Neuve in Belgium and the University of Sherbrooke in Canada; a visiting professor at the Université René Descartes, Paris 5-Sorbonne; he is currently a full professor at the Université du Québec à Montréal (UQàM); director of the Observatoire des réformes en education (ORé); and consultant to various international organizations on issues related to curriculum development. E-mail: philippejonnaert@yahoo.ca Domenico Masciotra (Canada) Doctorate in educational studies from UQáM and completed post-doctoral studies at the Massachussetts Institute of Technology; he is a researcher for ORé and consultant to the Ministère de l’éducation, du loisir et du sport (MELS) of Quebec. E-mail: masciotra.domenico@videotron.ca Johanne Barrette (Canada) A graduate student in a doctoral programme of educational studies at UQáM; her dissertation concerns informal and tacit learning acquired through practice in business settings. She has worked as an educational consultant for adult education in the workplace; as an adult education teacher; as a project manager in charge of a number of Quebec-based and international projects on the development of competencies in the workplace; and is currently a researcher at ORé. E-mail: barsav@sympatico.ca Denise Morel (Canada) Denise Morel holds two master’s degrees: in philosophy (McGill University, Montreal) and in Applied Linguistics (Concordia University, Montreal); has worked as a teacher, educational consultant and analyst for the English Montreal School Board, and as a part-time lecturer at Concordia University; has participated in several programme development projects for the MELS of Quebec, and collaborates with ORé. E-mail: dmorel@emsb.qc.ca Yaya Mane (Canada) Holds a doctorate in educational studies from the Université Montréal; has taught at the Institut supérieur des sciences de l’éducation de Guinée (ISSEG); he is presently a lecturer in the Faculty of Education at the Université Montréal;, a research officer at the Centre interdisciplinaire de la formation de la profession enseignante (CRIFPE) at the Université Montréal;, and a researcher at ORé. E-mail: yaya.mane@umontreal.ca  相似文献   
16.
The survey of materials constituting the buildings of the ancient city centre of Naples and of their decay typologies was carried out. Reports were entered in a database which enabled us to draw two thematic maps in a digital format: one of materials and lithotypes, and one showing weathering. On this basis, quantitative evaluations of the lithotypes were carried out. The research pointed out that the use of different lithotypes was mainly as a result of their availability and/or ease of exploitation. Furthermore, the importance of the preservation of the quarrying sites was stressed, both for their historical and cultural interest and, above all, for possible forthcoming provisioning finalized to restorations. The analysis of the results, made on a geo-mineralogical basis, as well as the thematic maps, gives a basic tool which will be very useful to those professionals involved in preservation of cultural heritage.  相似文献   
17.
The aim of this brief communication is to reply to a letter by Kosmulski (Journal of Informetrics 6(3):368–369, 2012), which criticizes a recent indicator called “success-index”. The most interesting features of this indicator, presented in Franceschini et al. (Scientometrics, in press), are: (i) allowing the selection of an “elite” subset from a set of publications and (ii) implementing the field-normalization at the level of an individual publication. We show that the Kosmulski's criticism is unfair and inappropriate, as it is the result of a misinterpretation of the indicator.  相似文献   
18.
The NetPro project creates models, methods, tools and materials for network-based project learning in engineering education. This new environment is a distributed system that facilitates sharing and peer reviewing of project deliverables and interaction in special interest group discussions. The paper presents as an example the pilot course on Electronic Systems Design and its preliminary evaluation.  相似文献   
19.
A multimedia component kit for digital electronics authoring and learning is presented. It is based on a sophisticated structuring mechanism and a flexible link management scheme. Components available on the Internet facilitate sharing and reuse of educational software during the authoring process, make possible the support of all phases of the learning process, and allow students to achieve their desired depth of understanding. Emphasis is put on the implementation of a great number of components based on simulation and animation that provide a high level of interactivity and allow some presentation difficulties inherent in the subject to be overcome. An analysis of the impact of using the kit for authoring and learning is currently being performed.  相似文献   
20.
Vividness and controllability of relaxing and energizing imagery by efficient and less efficient imagers.  相似文献   
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