117,303 research outputs found
Le intercettazioni telefoniche e ambientali di conversazioni private come materia di prova: questioni giuridiche e psico-sociali
No full textLaser and electron beams physical analyses applied to the comparison between two silver tetradrachm greek coins
No full textPhysical analyses by Laser Ablation coupled to Mass Quadrupole Spectrometry (LAMQS), and Energy Dispersive X-ray fluorescence (EDX) induced by electron beam are applied to the investigation of two silver Tetradrachm Greek coins. Quantitative analysis of elements, silver compounds and isotopic ratios have been investigated in the two samples. Significant differences in the elemental content and in the morphological aspects are observed
“The CdTe/CdS thin film solar cell. The contribution of Parma University”,
No full textThe CdTe/CdS thin film solar cell is the most suitable to be fabricated on the form of thin films. The processes used to make all the layers, which compose the cell, are quite simple and fast. Efficiency of 16.5% has been reached on laboratory scale and modules of 60x120 cm2 with efficiency larger than 8% are now fabricated and commercialized.
A strong contribution to the development of this type of solar cells has been given by the Parma University group with the discovery of a new ohmic back contact for CdTe which is incomparably stable in respect to any other ohmic contact used for CdTe, and by the development of a new all dry process to make the cell
Thermal evolution of heme pocket structure in trehalose coated carboxy-myoglobin probed by FTIR measurements
No full text
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
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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