two breeds of chickens were used to develop reference family and detect qtls affecting egg quality traits: cocks of a native polish breed green-legged partidgenous (glp) and hens of rhode island red (rir). during the first 100 days of the laying period, the glp hens lay about 40 eggs weighting on average 50 g, whilst the rir flock laid 83 eggs with a mean weight of 60 g. qtl analysis of egg qua...

The interactive effects of ocean acidification (OA) and parasitic infection have the potential to alter the performance of many marine organisms. Parasitic infection can affect host organisms’ response to abiotic stressors, and vice versa, while the response of marine organisms to stressors associated with OA can vary within and between taxonomic groups (host or parasite). Accordingly, it seems...

We present Gamow-Teller strength distributions from shell model Monte Carlo studies of fp-shell nuclei that may play an important role in the precollapse evolution of supernovae. We then use these strength distributions to calculate the electron-capture cross sections and rates in the zero-momentum transfer limit. We also discuss the thermal behavior of the cross sections. We find large differe...

B. Alex Brown iVational Superconducting Cyclotron Laboratory and Department of Physics and AstronomyM, ichigan State University, East Lansing, Michigan 48824-1321 (Received 18 February 1992) Calculations are presented for the Gamow-Teller strength distribution in the P+ decay of "Ca and compared to results extracted from recent beta decay data and from (p,n) data on the analog nucleus Cl. The s...

The investment casting of reactive Ti and TiAl alloys requires the use of selected ceramics in the face-coat layer to prevent the reaction between the cast metal and ceramic shell, avoiding the formation of a hard layer at the metallic components surface. This work aims to study the influence of ceramic shells composition in some of its characteristics such as flexural strength, friability and ...

Significant reduction in target strength and radiation signature can be achieved by surrounding an object with multiple concentric layers comprised of three acoustic fluids. The idea is to make a finely layered shell with the thickness of each layer defined by a unique transformation rule. The shell has the effect of steering incident acoustic energy around the structure, and conversely, reduci...

A 50-years old female patient presented for treatment of the anterior maxillary teeth that had been restored repeatedly in the past with direct resin composite restorations. The treatment plan for this patient included all-ceramic shell crowns on all anterior maxillary teeth and the premolars. Shell crowns were selected as the treatment option to ensure optimum esthetic result with increased st...