1,721,020 research outputs found
Risk Assessment Techniques for Civil Aviation Security
No full textFollowing the 9/11 terrorists attacks a strong economical effort was made to improve and adapt aviation security, both in infrastructures as in airplanes. National and international guidelines were promptly developed with the objective of creating a security management system able to supervise the identification of risks and the definition and optimisation of control measures.
Risk assessment techniques are thus crucial in the above process, since an incorrect risk identification and quantification can strongly affect both the security level as the investments needed to reach it.
The paper proposes a set of methodologies to qualitatively and quantitatively assess the risk in the security of civil aviation and the risk assessment process based on the threats, criticality and vulnerabilities concepts, highlighting their correlation in determining the level of risk.
RAMS techniques are applied to the airport security system in order to analyse the protection equipment for critical facilities located in air-side, allowing also the estimation of the importance of the security improving measures vs. their effectiveness
Cisplatin analogs with sterically hindered 1,10-phenathrolines and aromatic bases or nucleobase derivatives.
No full textFirst Crystal and Molecular Structure, and Circular Dichroism of a Pure ΛHT Rotamer of cis-PtAmine2(nucleos(t)ide)2
No full textCircular Dichroism and X-Ray Crystal Structure of HT Rotamers of Me4DACH-Pt(5’-GMP)2 Complexes
No full textX-ray structure and circular dichroism of pure rotamers of Bis[Guanosine-5'-monophosphate(-1)](N,N,N',N'-tetramethylcyclohexyl-1,2-diamine)platinum(II) complexes that have R,R and S,S configurations at the asymmetric diamine
No full textX-ray Structure and Spectroscopic Studies of Pure Rotamers of [bis-(guanosine-5’-monophosphate(-1))(N,N,N’,N’-tetramethyl-1,2-diaminocyclohexane)platinum(II)] Complexes Having R,R and S,S Configurations of the Asymmetric Diamine
No full textOn-line Physics Laboratory Experiments: Research Activities in the LABNET2 Project
No full textThe recent growth of interest of teachers to introduce the use of computer as educational tool encourages the development of didactic environments so that the use of computer classrooms and the resources of the web become daily tools. An aspect of distance education not currently supported by most support environments – commercial and experimental – is related to the possibility of performing laboratory exercises remotely. In the present paper, we illustrate on-going research activities and experimentations within the project LABNET2 of the Italian Interuniversity Computer Science Consortium (CINI) in the National Laboratory for Multimedia and Telematics (ITEM) in Naples. ITEM runs a set of projects, called LABNET, for the experimentation of technologies of remote access to laboratories. Such projects foresee the creation of laboratories, into which real technical-scientific equipments are remotely accessible to teachers and students. Such objective is achieved through the realization of a suitable computer and network infrastructure and the development of necessary software applications. The research activities described here are aimed at remote management of a physics laboratory. By taking advantage of telematics and multimedia technologies, some experiments available in the Physics laboratory (called LAFIDIN) of the Engineering Faculty of the Federico II University of Naples have been made controllable remotely over the Internet. The remote management allows students to perform experimentations, control equipments and visualize the results of the experiments as if these were performed locally. The access to a real laboratory, even if realized through remote control, aims at a greater didactic effectiveness when compared to conventional techniques of virtual laboratories, supported by advanced environments for distance learning. In this paper, we discuss also results of trials run in cooperation with 10 high school institutes of the district of Naples and Avellino. Students performed physics experiments on remote equipments through Internet connection from their schools. During the execution of the experiments, students had the possibility to have a complete vision of what happens in the laboratory through a remote controlled video camera. The camera helps to improve the pedagogical effectiveness of the experiments, remarking the difference with computer simulated experiments
On-line Physics Laboratory Experiments: Research Activities in the LABNET2 Project
No full textThe recent growth of interest of teachers to introduce the use of computer as educational tool encourages the development of didactic environments so that the use of computer classrooms and the resources of the web become daily tools. An aspect of distance education not currently supported by most support environments – commercial and experimental – is related to the possibility of performing laboratory exercises remotely. In the present paper, we illustrate on-going research activities and experimentations within the project LABNET2 of the Italian Interuniversity Computer Science Consortium (CINI) in the National Laboratory for Multimedia and Telematics (ITEM) in Naples. ITEM runs a set of projects, called LABNET, for the experimentation of technologies of remote access to laboratories. Such projects foresee the creation of laboratories, into which real technical-scientific equipments are remotely accessible to teachers and students. Such objective is achieved through the realization of a suitable computer and network infrastructure and the development of necessary software applications. The research activities described here are aimed at remote management of a physics laboratory. By taking advantage of telematics and multimedia technologies, some experiments available in the Physics laboratory (called LAFIDIN) of the Engineering Faculty of the Federico II University of Naples have been made controllable remotely over the Internet. The remote management allows students to perform experimentations, control equipments and visualize the results of the experiments as if these were performed locally. The access to a real laboratory, even if realized through remote control, aims at a greater didactic effectiveness when compared to conventional techniques of virtual laboratories, supported by advanced environments for distance learning. In this paper, we discuss also results of trials run in cooperation with 10 high school institutes of the district of Naples and Avellino. Students performed physics experiments on remote equipments through Internet connection from their schools. During the execution of the experiments, students had the possibility to have a complete vision of what happens in the laboratory through a remote controlled video camera. The camera helps to improve the pedagogical effectiveness of the experiments, remarking the difference with computer simulated experiments
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
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