Im Landkreis Lüneburg gibt es ein flächendeckendes Angebot an allgemeinbildenden Schulen. Dazu gehören die Grundschulen, Hauptschulen, Realschulen, Gymnasien, Gesamtschulen und Förderschulen. Je nach Schulform unterscheiden sich die Zugangsvoraussetzungen, pädagogischen Konzepte und Abschlüsse.
Die Daten zeigen die Standorte der Schulen des Landkreises nach Schulform.
Whether primordial bodies in the solar system possessed internally-generated dynamos is a fundamental constraint to understand the dynamics and timing of early planetary formation. Paleointensity studies on several meteorites reveal that their host planets possessed magnetic fields within an order-of magnitude of the present Earths field. Interpretation of paleointensity data relies heavily on fundamental knowledge of the magnetic properties of the magnetic carriers, such as the single to multidomain size threshold or how the saturation magnetization varies as a function of grain size, yet very little knowledge exists about these key parameters for some of the main magnetic recorders in meteorites: the iron-nickel alloys. Moreover, most meteorites have experienced some amount of shock during their histories, yet the consequence of even very small stresses on paleointensity data is poorly known.We wish to fill these gaps by magnetically characterizing Fe-Ni alloys as a function of grain size and by determining how absolute and relative paleointensity data are biased by strain levels lower than those petrologically observable (less than 4-5 GPa). For example, our preliminary work shows that an imposed stress of 0.6 GPa will reduce absolute paleointensity estimates by 46Prozent for single domain magnetite-bearing rocks. In general, paleointensity determinations possess inherent disadvantages regarding measurement precision and the inordinate amount of human time investment. We intend to overcome these limitations by extending and improving our fully automated magnetic workstation known as the SushiBar.
Most soils develop distinct soil architecture during pedogenesis and soil organic carbon (SOC) is sequestered within a hierarchical system of mineral-organic associations and aggregates. Permafrost soils store large amounts of carbon due to their permanently frozen subsoil and a lack of oxygen in the active layer, but they lack complex soil structure. With permafrost thaw more oxidative conditions and increasing soil temperature presumably enhance the build-up of more complex units of soil architecture and may counterbalance, at least partly, SOC mineralization. We aim to explore the development of mineral-organic associations and aggregates under different permafrost impact with respect to SOC stabilization. This information will be linked to environmental control factors relevant for SOC turnover at the pedon and stand scale to bridge processes occurring at the aggregate scale to larger spatial dimensions. We will combine in situ spectroscopic techniques with fractionation approaches and identify mechanisms relevant for SOC turnover at different scales by multivariate statistics and variogram analyses. From this we expect a deeper knowledge about soil architecture formation in the transition of permafrost soils to terrestrial soils and a scale-spanning mechanistic understanding of SOC cycling in permafrost regions.
Goal of the project is the creation of educational materials which can be used in lectures and seminars in the area of microbiology (WWW web site). The project is focused on (1) preparation and presentation of micro-biological topics; (ii) introduction of interactive seminars (homework, exams, feedback) via Internet; (iii) presentation of data (animation, model simulations, videos) which can be poorly presented during seminars and which are accessable from off-campus; (Iv) increased motivation through novel learning technologies; (v) evaluation of seminar through Internet; (vi) direct feedback to teacher.
Die Einzugsgebiete der Gymnasien im Landkreis Stade anhand der entsprechenden Satzungen.