Universiẗat, Diss.--Kiel, 2006.

Univ., Diss--Augsburg, 2006.

Univ., Diss.--Tübingen, 2006. / Literaturverz. S. [278] - 301.

Humboldt-Univ., Diss.--Berlin, 2006. / Literaturverz. S. 331 - 355.

Verdedigd als proefschrift Leipzig, 2008.

Les langues, une ressource économique ? Les problèmes de la variété linguistique et des choix linguistiques sont abordés par les entreprises et par leurs salariés sous le double aspect de la communication externe et de la communication interne. Ces questions, qui n'ont fait l'objet jusqu' à présent que d'études statistico-quantitatives, seront traitées dans cette contribution à travers une série d'études de cas qualitatives, couvrant une vaste gamme de secteurs, de branches et de tailles d'entreprises. Une vue d'ensemble de toutes ces études de cas nous permettra de tirer des conclusions générales sur les particularités des choix et politiques linguistiques en milieu d'affaires, que ce soit le mélange spécifique entre adaptation et standardisation, le cas spécial des négociations, les conséquences de la domination d'un certain marché, l'importance de l'organisation des canaux de distribution, l'impact du rapport coûts-bénéfices ainsi que des expériences linguistiques personnelles des hauts responsables. Nous nous pencherons également sur la question de la méthodologie de telles enquêtes, sur les positions inégales du vendeur et de l'acheteur et sur le trade-off entre communication externe et interne dans les entreprises. (abrégé) / Series: WU Online Papers in International Business Communication / Series One: Intercultural Communication and Language Learning

Identy based cryptography has been, for a few recent years, the most active area of research and currently is of a great interest to the researchers groups. In general case the root of ID based cryptography is that user identifying data is used like a public key and so is no need of certificates for the user authentification. In this work we survey a few basic the most influent cryptoschemes. We attempt to answer what is needed for constructing an efficient IBE scheme. There are trustworthy cryptoschemes that uses elliptic curves and bilinear pairings in nowadays. We use these mathematical implements for efficient cryptoscheme too. And finally, there is a pilot software realization for this scheme.

New and existing U–Pb and 40Ar/39Ar geochronological data, and oxygen and hydrogen stable isotope data, are combined with structural and metamorphic data from Thor–Odin, the southern culmination of the Monashee Complex. This leads to a new interpretation of the timing of deformation and metamorphism. Amphibolites in Thor–Odin with hornblende 40Ar/39Ar dates between ~75–70 and ~51 Ma experienced more 18O- and D-depletion than amphibolites with older dates. The younger dates that were previously interpreted as cooling ages, may have resulted from complete or partial Ar loss in the presence of meteoric fluids that were introduced into the rock during extension. <br><br> Monazite crystals in pelitic schist, quartzite and orthogneiss, which have U–Pb ages younger than 40Ar/39Ar hornblende ages in amphibolite in northwest Thor–Odin, may have grown during tension in the presence of fluids. Titanite, xenotime and zircon dates may be interpreted in the same way. Thus, the U–Pb dates that were previously interpreted as representing peak of metamorphism and the hornblende 40Ar/39Ar dates that were previously interpreted as representing cooling ages, may be interpreted as reflecting meteoric fluid penetration of the crust during regional extension. This implies that the age of the thermal peak of metamorphism is older than ~75–70 Ma. Migmatisation in a basement orthogneiss in Thor–Odin occurred at ~1.8 Ga. Dissolution rims are preserved in zircon between ~1.8 Ga domains and 52 Ma overgrowths. Because growth of new zircon (and possibly other U–Pb accessory phases) did not take place, any geological event that occurred during the ~1.8 Ga to 52 Ma time interval is not recorded. Cordilleran deformation and metamorphism may have taken place within that time interval, e.g. in the Middle Jurassic and/or mid- to Late Cretaceous, the time of Cordilleran deformation and metamorphism in the rocks overlying the Monashee Complex. <br><br> The Joss Mountain orthogneiss, west of the Monashee Complex in the Selkirk Allochthon, is dated at 362 +/– 13 Ma. F3 folding in pelitic schist at Joss Mountain is constrained between ~73 and ~70 Ma. Existing structural, metamorphic and geochronological data in, and close to, the Shuswap Metamorphic Complex in the southern Canadian Cordillera are shown to be consistent with a channel flow model.

Hochsch. für Wirtschafts-, Rechts- und Sozialwiss., Diss.--St. Gallen, 2007.

Humboldt-Univ., Diss.--Berlin, 2004. / Zsfassung in dt. Sprache.