Soybean extract residue (scum), a waste of soybean oil production, was examined as a raw material for C17-ketosteroid production. As a model process, its bioconversion to 9α-hydroxyandrost4-ene-3,17-dione (9-OH-AD) by Mycobacterium sp VKM Ac-1817D was studied. The content of transformable sterols (sitosterol, stigmasterol and campesterol) in scum was estimated at ∼14%. The bioconversion of scum...

Genotypic and phenotypic analyses were carried out to clarify the taxonomic position of the naturally transformable Acinetobacter sp. strain ADP1. Transfer tDNA-PCR fingerprinting, 16S rRNA gene sequence analysis, and selective restriction fragment amplification (amplified fragment length polymorphism analysis) indicate that strain ADP1 and a second transformable strain, designated 93A2, are me...

The paper presents the results of development a multi-layer protective product, which is transformable fire barrier, installed in buildings and structures to limit spread flame, heat flow smoke. Based on simulation eight samples curtains, three promising different compositions were selected, demonstrating resistance loss thermal insulating capacity (I) 30 min. During small-scale tests, it was f...

A new β-metastable Ti-alloy is designed with the aim to obtain a TWIP alloy but positioned at limit between TRIP/TWIP and dominated regime. The exhibits large ductility combined an elevated stable work-hardening rate. Deformation occurring by formation multiplication of {332}<113> twins evidenced followed in-situ electron microscopy, no primary stress induced martensite observed. Since microstr...

This paper presents a set of rules of operation which guarantee that a computer system can remain secure while exhibiting certain desired external characteristics. The rules are easily transformable into algorithms suitable for implementation on a digital computer. iii PREFACE In our introductory paper on secure computer systems (MTR-2547, Vol. I) we introduced a framework for mathematical mode...

Pakula, Roman (University of Toronto, Toronto, Ontario, Canada). Factors regulating competence in transformation of streptococci. J. Bacteriol. 90:1320-1324. 1965.-The highly transformable group H Streptococcus strain Challis produced an exocellular competence-provoking enzyme capable of converting to the state of competency incompetent cells of the homologous strain, and of the very poorly tra...