VIDENCE has accumulated concerning the uptake of DNA by living cells E of higher organisms. Most investigations have been carried out on isolated cells cultivated or maintained in uitro. The generality of this phenomenon [extensively reviewed by LEDOUX (1965) ] has been demonstrated in several laboratories with different systems ( BENDICH, WILCZOK and BOBENFREUND 1965; KONG and FICQ 1967; SCHEL...

Ephestia kuehniella üretiminde uygun besin kullanılması kitle üretim için oldukça önemlidir. Bu çalışmada kuehniella’nın bazı biyolojik özellikleri kontrol (500 g buğday unu, +500 kepeği), ve besinde unu miktarı sabit tutularak oluşturulan 1 nolu (250 kepeği +250 mısır unu), 2 (225 +225 + 50 balık 3 (213 +212 75 nbalık 4 (200 +200 100 unu) 5 (188 +188 125 6 (175 +175 150 besinlerde karşılaştırı...

Haemocytes of Ephestia kuehmella adhere to foreign objects introduced into the haemocoel and form capsules around them. The fine structure of these capsules, and the blood cells which form them, has been studied by electron microscopy. By 72 h the capsule is a compact tissue, about 50-60 cells thick. The cells retain their integrity and do not form a syncytium. Cells nearest the implant develop...

Structuring the information and knowledge needed to implement a factory, as well as doing its control and management by computer systems, is the purpose of the meta-model and solutions here presented. This meta-model includes: an object-oriented model to structure the needed information and knowledge; a model for manufacturing systems; a prototype that integrates the two previously referred mod...