弗莱斯住宅

如何运用设计,满足不同的居住形式与需要,是住宅设计中面临的一个主要问题.在弗莱斯住宅的设计中,建筑师观察了住宅所处的地理位置和其周围环境,运用色彩、布局等手法,让居住空间变得既灵活,又减少了周围不利因素如噪音的影响.     

Competitive Sperm-Marked Beetles for Monitoring Approaches in Genetic Biocontrol and Studies in Reproductive Biology

Sperm marking provides a key tool for reproductive biology studies, but it also represents a valuable monitoring tool for genetic pest control strategies such as the sterile insect technique. Sperm-marked lines can be generated by introducing transgenes that mediate the expression of fluorescent proteins during spermatogenesis. The homozygous lines established by transgenesis approaches are going through a genetic bottleneck that can lead to reduced fitness. Transgenic SIT approaches have mostly focused on Dipteran and Lepidopteran pests so far. With this study, we provide sperm-marked lines for the Coleopteran pest model organism, the red flour beetle Tribolium castaneum, based on the β2-tubulin promoter/enhancer driving red (DsRed) or green (EGFP) fluorescence. The obtained lines are reasonably competitive and were thus used for our studies on reproductive biology, confirming the phenomenon of ‘last-male sperm precedence’ and that the spermathecae are deployed for long-term sperm storage, enabling the use of sperm from first mating events even after secondary mating events for a long period of time. The homozygosity and competitiveness of the lines will enable future studies to analyze the controlled process of sperm movement into the long-term storage organ as part of a post-mating cryptic female choice mechanism of this extremely promiscuous species.     

Zum Nachweise von Wasserstoffsuperoxyd in Milch

Ohne Zusammenfassungitteilung aus dem Government Laboratory of Victoria in Melbourne (Australien)     

Die Diastase in Gemischen von Kunsthonig und Bienenhonig

Zusammenfassung Das Fehlen der Diastase in Kunsthonig-Bienenhonig-Mischungen kann darauf zurückzuführen sein, daß die zum Invertieren des Zuckers verwendete Säure nicht neutralisiert wurde, denn die Bienendiastase ist besonders säureempfindlich.