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LES SAXONS DE TRANSYLVANIE ET LEURS éGLISES FORTIFIéES: UN RICHE PATRIMOINE CULTUREL DE LA ROUMANIE
DANIEL IOSIF
Revue Roumaine de Géographie , 2011,
Abstract: A great German civilization is living for about 800 years in Transylvania. They improved the indigenous life and technology. They built the largest area in the world with fortified churches, more than 200 in a relatively small area (Hartibaciu’s hills). With a huge cultural potential, the villages which are inhabited by Saxons are in a visible economic decline. Almost every village being here dispose of a fortified church, witness to Transylvanian history and culture. Most of them are now abandoned, which is directly linked to the exodus of Transylvanian Saxons. Seven of them are now UNESCO heritage sites and can be visited, a true museum of German art.
Ecotourism as a community industry. Case study: Transylvanian Saxon communities with fortified churches
Daniel Iosif
Cinq Continents , 2011,
Abstract: L’écotourisme comme une industrie communautaire. Etude de cas:les villages allemands de Transylvanie avec des églises fortifiées. Ily a plus de 700 ans Transylvanie possède une grande civilisationallemande qui a amélioré la vie et la technologie des communautésautochtones. Ils sont ceux qui construisent le plus grand territoire du monde avec des églises fortifiées, plus de 200 dans un habitatrelativement petit (notamment les collines de Hartibaciu). Les activités touristiques sont là au début et les communautés des Saxons sont très sensibles, voici pourquoi il faut construire un tourisme durable qui met en évidence les caractéristiques des villages saxons. Une réponse pour cette démarche est l’écotourisme qui, avec ses caractéristiques intrinsèques, peut bien aider les communautés allemandes de Transylvanie en croissant notamment leur niveau de vie.
Les Portes de Fer sous la loupe d'une recherche des geosites. Caractéristiques géo(morpho)logiques et enjeux
Daniel Iosif
Cinq Continents , 2012,
Abstract: The Iron Gates under the microscope of a geosites research. Geo(morpho)logical issues and challenges. This paper proposes to see how a geosites research in the Iron Gates Natural Park can provide concrete and satisfactory results. The study analyses briefly the main geological and geomorphologic characteristics of the Iron Gates and it is trying to make a correlation with the term geosite, as it is established by the Swiss school of geography. After the collapse of the mining industry, tourism became the most important economic alternative in this region. Geology and geomorphology must be touristically well exploited and this is possible only by creating a project that analyses and develops the local geosites. This paper discusses also about the main challenges of such a project.
La recherche geographique des geosites: quelles perspectives?
Daniel Iosif
Cinq Continents , 2011,
Abstract: The paper does not discuses about the term of geosite or its definitions. Those aspects are already well known for the scientific researchers. In the last years, some intense scientific activity was concerned to releasing papers which the main subject was the geosite and his derived terms: geomorphosite, geoarcheological sites etc. We can see a scientific boom around this notion. In those conditions it is necessarily to make a theoretical work with the scope to introduce the lecturer in the complexity and interdisciplinary properties ofthis research field. The paper starts with a short history of the development of the field and continues with his most important component: the geomorphologic site and some perspectives to valuing. Finally, we note that the anthropic monument can be analyzed as geosites too, and the best way to make a cartographic representation of geosites is to use the GIS solutions.
Eigenvalues of a one-dimensional Dirac operator pencil
Daniel M. Elton,Michael Levitin,Iosif Polterovich
Mathematics , 2013, DOI: 10.1007/s00023-013-0304-2
Abstract: We study the spectrum of a one-dimensional Dirac operator pencil, with a coupling constant in front of the potential considered as the spectral parameter. Motivated by recent investigations of graphene waveguides, we focus on the values of the coupling constant for which the kernel of the Dirac operator contains a square integrable function. In physics literature such a function is called a confined zero mode. Several results on the asymptotic distribution of coupling constants giving rise to zero modes are obtained. In particular, we show that this distribution depends in a subtle way on the sign variation and the presence of gaps in the potential. Surprisingly, it also depends on the arithmetic properties of certain quantities determined by the potential. We further observe that variable sign potentials may produce complex eigenvalues of the operator pencil. Some examples and numerical calculations illustrating these phenomena are presented.
Histo-anatomy of the stem of Solanum tuberosum L.
Monica SIPOS,Manuela ILEA,Iosif MOLNAR,Daniel BUNTA
Analele Universitatii din Oradea, Fascicula Biologie , 2008,
Abstract: The paper reveals the anatomical structure of the stem of Solanum tuberosum L. in the incipient stages of the ontogenetic development (the popular denomination sprout”). Cross sections of the stem of this species were performed. The appearance of the secondary structure – even in this early ontogenetic stage – was confirmed by the presence of the cambium and the tissues generated by this. As a result, at the potato, the purely primary structure of the stem is of a short duration.
A Comparative Study Above Two Self-Tuning Controllers With Aplication To The Control Of Synchronous Generator Excitation System
Ioan FILIP,Daniel CURIAC,Octavian PRO?TEAN,Iosif SZEIDERT
Annals of Dunarea de Jos , 2000,
Abstract: This paper presents two self-tuning control structures synthesized through the minimization of two criterion functions. It is described the computation methodology of the control laws, both being particularized for the case of the synchronous generator's excitation control. The parameters estimator is considered the recursive least square error (RLSE) algorithm. In order to validate the considered control structures, two comparative study cases by computer simulation are presented.
The First Romanian Translations of John Steinbeck. Norms, Strategies and Censorship Practices
Diana IOSIF
Studii de Stiinta si Cultura , 2011,
Abstract: Drawing on Gideon Toury’s “norm theory,” and on André Lefevere’s concept of“rewriting,” this paper examines six Romanian translations of John Steinbeck issued between 1942and 1946, seeking to reveal the norms and strategies adopted in their production, as well as shedlight on the role of ideology in shaping the target texts.
Extensible Data Model with Applications for Trading Systems
Iosif Ziman
Lecture Notes in Engineering and Computer Science , 2012,
Abstract:
Ciphering Indicator approaches and user awareness
Iosif Androulidakis
Maejo International Journal of Science and Technology , 2012,
Abstract: One of the fundamental mobile phone security problems in GSM is the absence of base station authentication, which allows man-in-the-middle attacks. During such attacks, a third party activates a fake base station, which acts as a bypass to the network, thus switching off the encryption and intercepting the user’s communications. 3G mobile networks enforce mutual authentication but this can be circumvented if the 3G band is jammed by the attacker, forcing the phone to connect using GSM. GSM and newer standards provide a user alert indicating that the encryption has been switched off, which is called a Ciphering Indicator. In the present paper, different approaches followed by various manufacturers concerning the Ciphering Indicator are investigated. A total of 38 different mobile phones ranging from old to new and from simple to smart-phones that were produced by 13 different manufacturers were intercepted using a GSM testing device in order to document their reactions. Four approaches were identified with some manufacturers choosing not to implement the feature at all. It was also found that in the cases in which the feature was actually implemented, no universal indication was used and it was seldom documented in the phones’ manuals. User awareness regarding the Ciphering Indicator and security issues was also investigated via an empirical survey employing more than 7,000 users from 10 countries and was found to be significantly low.
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