416 research outputs found

    The Internet as a means of stuying transnationalism and Diaspora?

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    Dieser Text beschäftigt sich mit der Frage, wie das Internet verwendet werden kann, um die Entwicklung von Interessen, Kontakten und Netzwerken von Migranten zu untersuchen und so zwischen einer transnationalen Gemeinschaft und einer Diaspora zu unterscheiden. Da das Internet zu einem zentralen Kommunikationsmittel geworden ist, insbesondere für räumlich von einander getrennte Gruppen, können die Analyse von Webseiten, ihre Nutzung und die daraus entstehenden Kommunikationswege dazu beitragen, Unterschiede und Ähnlichkeiten transnationaler Gemeinschaften und Diaspora zu verstehen. Auf Basis empirischer Daten und Erfahrungen aus dem aktuellen Forschungsprojekt der Autoren werden drei Formen nationaler, transnationaler und internationaler Beziehungen diskutiert: transnationale (online) Gemeinschaften, (virtuelle) Diaspora, und ethnische (online) Öffentlichkeiten. This paper addresses the question, how the Internet can be used to study developments in migrants’ interests, contacts and networks and so differentiate between transnational communities and Diaspora. As the Internet has become a central means of communication, especially true for geographically dispersed entities, the analysis of internet sites, their uses and the thus emerging communication paths can add to the understanding of differences and similarities of transnational communities and Diaspora. Based on empirical data and experiences collected as part of the authors´ ongoing research project on the political online activities from migrants in Germany, three different forms of national, transnational and international relationships will be discussed: transnational (online) communities,(virtual) Diasporas, and ethnic (online) public spheres

    Politisches Potential des Internet:die virtuelle Diaspora der Migranten aus Russland und der Türkei in Deutschland (Projektskizze)

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    Das Forschungsprojekt „Politisches Potential des Internet: Die virtuelle Diaspora der Migranten aus Russland und der Türkei in Deutschland“ untersucht die politischen Aktivitäten, die Migranten in Deutschland im Internet entfalten. Dabei gilt das Forschungsinteresse der Vernetzung und der Online-Beteiligung an politischen Prozessen sowohl im Herkunftsland der Migranten als auch im Aufnahmeland. Exemplarisch soll dies anhand der Migranten aus Russland und der Türkei in Deutschland untersucht werden. Zentrale Frage ist dabei, inwiefern das Internet die bereits bekannten politischen Aktivitäten von Migranten aus der Diaspora heraus verändert. Erleichtert das Internet lediglich den Kommunikations- und Informationsfluss zwischen den Mitgliedern der Diaspora oder bekommen die Aktivitäten eine ganz neue Qualität, weil neue Einflusswege erfolgreich genutzt werden? Welche Einwirkungen auf das politische Geschehen im Herkunftsland und im Aufenthaltsland sind feststellbar?The research project “Political potential of the internet - the virtual diaspora of migrants from Russia and Turkey in Germany” examines the political activities, which migrants display in Germany on the Internet. The focus hereby lies on the interconnectedness and the on-line participation in the political processes both in the host country and in the country of origin. This is investigated by a case study of immigrants from Russia and Turkey in Germany. Thereby the central question is, in what respect the Internet changes the already well-known political activities of immigrants in a diaspora. Does the internet only facilitate the information and communication flow between the members of the diaspora or do activities posess a completely new quality, as new ways of influence are used successfully? Which effects on the country of origin and in the residence country can be detected, how are they carried out and what consequences do they have

    The Rigidly Rotating Magnetosphere of Sigma Ori E

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    We attempt to characterize the observed variability of the magnetic helium-strong star sigma Ori E in terms of a recently developed rigidly rotating magnetosphere model. This model predicts the accumulation of circumstellar plasma in two co-rotating clouds, situated in magnetohydrostatic equilibrium at the intersection between magnetic and rotational equators. We find that the model can reproduce well the periodic modulations observed in the star's light curve, H alpha emission-line profile, and longitudinal field strength, confirming that it furnishes an essentially correct, quantitative description of the star's magnetically controlled circumstellar environment.Comment: 4 pages, 3 figures, accepted by Ap

    Анализ эффективности применения гидроразрыва пласта на нефтяном месторождении "Белый Тигр" (Вьетнам)

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    Объектом исследования является нефтяное месторождение "Белый Тигр" (Вьетнам), расположенное в Кыулонгской впадине на шельфе Вьетнама. Цель работы – анализ эффективности применения метода гидравлического разрыва пласта на нефтяном месторождении "Белый Тигр" (Вьетнам). В процессе исследования рассмотрен анализ проведения метода увеличения нефтеотдачи - ГРП, его влияние на дебит скважины. В данной работы описана техника, технология проведения ГРП, оборудование и материалы, применяемые при ГРП.The object of research is the method of hydraulic fracturing reservoirs in the oil field "White Tiger" (Vietnam), located in the Cuu Long depression on the Vietnamese shelf. Purpose - analysis of the effectiveness of the method hydraulic fracturing in the oil field "White Tiger" (Vietnam). The study examined the method of analysis EOR - fracturing, its influence on the production rate. The thesis describes the technique, technology of hydraulic fracturing, equipment and materials used in hydraulic fracturing

    Chemotherapy followed by low dose radiotherapy in childhood Hodgkin's disease: retrospective analysis of results and prognostic factors

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    PURPOSE: To report the treatment results and prognostic factors of childhood patients with Hodgkin's disease treated with chemotherapy (CT) followed by low dose radiotherapy (RT). PATIENTS AND METHODS: This retrospective series analyzed 166 patients under 18 years old, treated from January 1985 to December 2003. Median age was 10 years (range 2–18). The male to female ratio was 2,3 : 1. Lymphonode enlargement was the most frequent clinical manifestation (68%), and the time of symptom duration was less than 6 months in 55% of the patients. In histological analysis Nodular Sclerosis was the most prevalent type (48%) followed by Mixed Celularity (34.6%). The staging group according Ann Arbor classification was: I (11.7%), II (36.4%), III (32.1%) and IV (19.8%). The standard treatment consisted of chemotherapy multiple drug combination according the period of treatment protocols vigent: ABVD in 39% (n-65) of the cases, by VEEP in 13 %(n-22), MOPP in 13 %(n-22), OPPA-13 %(n-22) and ABVD/OPPA in 22 %(n-33). Radiotherapy was device to all areas of initial presentation of disease. Dose less or equal than 21 Gy was used in 90.2% of patients with most part of them (90%) by involved field (IFRT) or mantle field. RESULTS: The OS and EFS in 10 years were 89% and 87%. Survival according to clinical stage as 94.7%, 91.3%, 82.3% and 71% for stages I to IV(p = 0,005). The OS was in 91.3% of patients who received RT and in 72.6% of patients who did not (p = 0,003). Multivariate analysis showed presence of B symptoms, no radiotherapy and advanced clinical stage to be associated with a worse prognosis. CONCLUSION: This data demonstrating the importance of RT consolidation with low dose and reduced volume, in all clinical stage of childhood HD, producing satisfactory ten years OS and EFS. As the disease is highly curable, any data of long term follow-up should be presented in order to better direct therapy, and to identify groups of patients who would not benefit from radiation treatment

    The impacts of environmental warming on Odonata: a review

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    Climate change brings with it unprecedented rates of increase in environmental temperature, which will have major consequences for the earth's flora and fauna. The Odonata represent a taxon that has many strong links to this abiotic factor due to its tropical evolutionary history and adaptations to temperate climates. Temperature is known to affect odonate physiology including life-history traits such as developmental rate, phenology and seasonal regulation as well as immune function and the production of pigment for thermoregulation. A range of behaviours are likely to be affected which will, in turn, influence other parts of the aquatic ecosystem, primarily through trophic interactions. Temperature may influence changes in geographical distributions, through a shifting of species' fundamental niches, changes in the distribution of suitable habitat and variation in the dispersal ability of species. Finally, such a rapid change in the environment results in a strong selective pressure towards adaptation to cope and the inevitable loss of some populations and, potentially, species. Where data are lacking for odonates, studies on other invertebrate groups will be considered. Finally, directions for research are suggested, particularly laboratory studies that investigate underlying causes of climate-driven macroecological patterns
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