Search results for "REGION"
showing 10 items of 4910 documents
Optimization of urban delivery systems based on electric assisted cargo bikes with modular battery size, taking into account the service requirements…
2021
The implementation of new forms of urban mobility is a fundamental challenge for improving the performance of city logistic systems in terms of efficiency and sustainability. For such purposes, the exploitation of electric vehicles is currently being investigated as an alternative to traditional internal combustion engines. In particular, the employment of lightweight electric cargo bikes is seen as an attractive possibility for designing improved city distribution systems. Such vehicles, however, present substantial limitations related to their endurance, speed, power, and recharging times; therefore, their configuration must be optimized considering the actual operational context and the …
Studies of the binding of diolepoxide metabolites of polycyclic aromatic hydrocarbons to DNA using electrofluorescence polarization spectroscopy
1996
In the electrofluorescence method, a solution of DNA with covalently bound polycyclic hydrocarbons is placed in an electric field, and changes in the intensity of polarized fluorescence are observed. Under the correct conditions, these charges can be used to determine a value for the angle psi between the long axis of the hydrocarbon molecule and the axis of the DNA helix. For DNA or poly(dA-dT) treated with each stereoisomer of anti-benzo[c]phenanthrene diolepoxide, psi ranged from 55 degrees to 61 degrees, consistent with a mixture of quasi-intercalated adenine adducts and externally bound guanine adducts. Similar results were obtained with another set of 'fjord-region' diolepoxides, deri…
Uses of places and setting preferences in a French Antarctic station
2007
The various uses of space as well as the environmental preferences of wintering people were investigated during 1 year in a French Antarctic station using daily participant observation (for uses of places) and a repeated measure of the perception and evaluation of the settings. The uses of places varied according to occupational and age subgroups: The young scientists expressed a higher need for privacy and a strong investment in their working areas, whereas the technicians preferred the social leisure area (main hall). These places were used as different behavior settings and thus corresponded to flexible environments. Flexibility was a characteristic of all the preferred places. A change…
Intellectual capital reporting: A knowledge tool to coordinate a group of regional non-profit organisations
2017
Whilst many organizations worldwide have stopped disclosing Intellectual Capital (IC), to the best of our knowledge, the only longstanding NPO still measuring, managing and reporting its IC is a large Italian non-profit organization (NPO), ANPAS Piemonte. The main aim of the article is thus to investigate the reasons why ANPAS Piemonte continues to deal with IC, to examine the determinants of this choice, the costs and the benefits management gets from IC measurement, management and reporting. In other words, the paper aims to explore the intellectual capital (IC) reporting process from an internal, managerial point of view. The paper employ a case study methodology to address its aim, and …
Un análisis bibliométrico en el área de la Medicina: colaboración científica entre Brasil y España (2002-2011)
2016
[EN]: This study analyzes the development of Spanish-Brazilian collaborative scientific production in the field of medical research between 2002 and 2011, identifying the most productive institutions, the proportion of researchers from each country and bi-lateral collaborative networks. Data were gathered from the Scopus database, which offers broad, international coverage of multidisciplinary research. A study sample of 1,121 original scientific articles signed by 13,906 researchers were retrieved, on the basis of which the annual growth rate of Spanish-Brazilian medical research was calculated. A remarkably high degree of internationalization was found, with 121 countries participating in…
La investigación sobre manuales escolares de Geografía españoles: Análisis bibliométrico (1980-2019)
2020
espanolEl objetivo de esta investigacion es llevar a cabo un analisis bibliometrico sobre los trabajos que analizan los libros de texto de Geografia espanoles (1980-2019) atendiendo a: 1) Tendencia de los trabajos publicados; 2) Grado de internacionalizacion; 3) Tipo de contribucion; y 4) Principales tematicas de estudio y etapas educativas. Los principales resultados indican que la tendencia de los trabajos publicados ha experimentado un interes notable en la ultima decada, especialmente los relacionados con el Paisaje y Climatologia. En cuanto al tipo de contribucion, los articulos son los principales (51%) y, respecto al grado de internacionalizacion, los resultados ponen de manifiesto u…
Sharing-collaborative economy in tourism: A bibliometric analysis and perspectives for the post-pandemic era
2021
Sharing economy research has risen exponentially during the last 4 years. Although several theoretical revisions on this topic have been developed, a conceptual analysis based on bibliometric techniques and science mapping tools is lacking. Within this framework, this article has two aims: (i) to carry on a performance analysis to identify the outstanding themes and (ii) to visually present the scientific structure by topics of research in sharing-collaborative economy as well as its evolution to identify future directions. The resources in the Web of Science Citation Index were used. Intelligent techniques and, more specifically, the SciMAT tool (based on co-word analysis and h-index anal…
Connecting the Dots: A Bibliometric Analysis of the Link Between Standardization and Economic Growth
2020
We analyze the attention that is allocated to the link between standardization and economic growth by systematically reviewing leading economics journals, leading economic growth researchers’ articles and economic growth-related books. The following observations are made: No article has analyzed the link between standardization and economic growth in top5 economics journals between 1996 and 2018. A representative sample of the leading researchers of economic growth has allocated little attention to the link between standardization and economic growth. Typically, economic growth textbooks do not contain “standards” or “standardization” in their word indexes. To summarize, economic growth the…
Clusters and Industrial Districts: Where is the Literature Going? Identifying Emerging Sub-Fields of Research
2015
[EN] The industrial district and cluster literature has generated an extraordinary quantity of articles, debates and topics for discussion, and encompasses one of the most vibrant lines of research in the field of economics, geography, management and related disciplines. The literature, however, is fairly fragmented. In this paper, “bibliometric” methods are used to analyse the cluster literature published between 1957 and 2014 in order to explore “prospective” research priorities through the method of “bibliographic coupling”. Beyond focusing on foundational works in the past, this approach shifts the focus away from the practice of analysing co-citations and seminal contributions to one o…
How far the substituent effects in disubstituted cyclohexa-1,3-diene derivatives differ from those in bicyclo[2.2.2]octane and benzene?
2018
Substituents effects in cyclic diene derivatives are studied using quantum chemical modeling and compared to the corresponding effects in aromatic (benzene) and fully saturated (bicyclo[2.2.2]octane) compounds. In particular, electronic properties of the fixed group Y in a series of 3- and 4-X-substituted cyclohexa-1,3-diene-Y derivatives (where Y = NO2, COOH, COO− OH, O−, NH2, and X = NMe2, NH2, OH, OMe, Me, H, F, Cl, CF3, CN, CHO, COMe, CONH2, COOH, NO2, NO) are examined using the B3LYP/6-311++G(d,p) method. For this purpose, quantum chemistry models of the substituent effect: cSAR (charge of the substituent active region) and SESE (substituent effect stabilization energy) as well as trad…