A comparative study of the public relations programs and policies in schools and businesses

Thesis (Ed.M.)--Boston Universit

Quay wall for berth 12 in port of Koper

Since 1970 costal structures in the Port of Koper are designed as reinforced concrete slabs founded on vertical and inclined steel piles with a slope under the deck. This method of construction requires the excavation of large quantities of silt with bad characteristics, which is used mainly for acquiring new surfaces. The amount of pumped silt, derived from construction of new docks and deepening waterways, exceeds needs. Therefore it is necessary to take the extra silt elsewhere, which represents an increasing cost for the port. In the thesis is analyzed the possibility of using sheet pile wall on the particular case of the extension of dock number 11. The proposed coastal structure consists of concrete slab founded on steel tubular piles and steel sheet pile wall, which has a soil retaining and bearing function. This method of construction does not required addition excavations. Because of the complexity of the structure, individual elements and appropriate geometry models are acquired step by step. Initially the possibility of using a concrete slab on ground level founded on steel tubular piles and combined sheet pile wall that consist of different types of primary and secondary elements is analyzed. Because of the poor bearing capacity of the soil such type of structure is not an option. The following steps show the need of anchorage, inclination of piles and sheet wall and a relieving platform. Deep relieving platform 4 m below the ground anchored by Müller-Verfahren piles with inclined tubular piles at an gradient of 3:1 and sheet pile wall at a gradient of 5,5:1 is appropriate. Cross section and length of elements are set according to the required bearing capacity. The thesis also shows the positive effects of using deep mixing method and additional foundation of the storage area. At the end a list of further controls of cross sections and stability of steel elements is given

Effect of N-fertilization, fungicide treatment, seed density and abiotic stress factors on the total ß-glucan content of six-rowed winter barley (Hordeum vulgare L.)

In Germany, the first six-rowed waxy winter barley cultivar (cv.) `Waxyma` was registered in 2008. Besides changes in starch composition, waxy barley is rich in ß-glucans offering new applications in the food industry as ß-glucans reduce the blood cholesterol level. To investigate the stability of the ß-glucan content, cv. `Waxyma`, three waxy breeding lines and the non-waxy cv. `Lomerit` were grown in field trials, shelter-, green house- and growth chamber experiments. Besides this, `Waxyma` was grown in field trials at varying nitrogen levels and different seed rates, both with and without fungicide treatment. Waxyma showed a significant increase of the ß-glucan content under optimal nitrogen fertilization and fungicide treatment, but the influence of the seed density was not significant. Under shelter and greenhouse conditions the influence of drought stress during grain filling was analyzed. The increase of the ß-glucan content under drought stress in the shelter and under rising temperatures in growth chambers was only significant for the non waxy cv. `Lomerit` while no influence of drought stress was  observed under green house conditions.  In summary the high ß-glucan content of cv. `Waxyma` seems to be relatively stable with respect to growing conditions making it a suitable raw material for human nutrition

Spatial control of carrier capture in two-dimensional materials: Beyond energy selection rules

Transition metal dichalcogenide monolayers have attracted wide attention due to their remarkable optical, electronic and mechanical properties. In these materials local strain distributions effectively form quasi zero-dimensional potentials, whose localized states may be populated by carrier capture from the continuum states. Using a recently developed Lindblad single-particle approach, here we study the phonon-induced carrier capture in a MoSe$_2$ monolayer. Although one decisive control parameter is the energy selection rule, which links the energy of the incoming carriers to that of the final state via the emitted phonon, we show that additionally the spatio-temporal dynamics plays a crucial role. By varying the direction of the incoming carriers with respect to the orientation of the localized potential, we introduce a new control mechanism for the carrier capture: the spatial control.Comment: 10 pages, 4 figures, 1 ancillary movi