The present study was carried out to compare the inhibitory effect of alginate coatings containing Zataria Multiflora Boiss essential oil (ZMEO) in two forms of coarse emulsion and Nano-emulsion on the growth of inoculated Escherichia coli O157:H7in beef fillet during 16 days of refrigeration (4 C °). Accordingly, alginate solutions (3%) with different co...

The conference will address the apparent paradox of how the brains of different species can be both build on common principles of morphogenesis and differ in shape and connexions in selected areas, resulting in a large variety of behaviours and adaptation. The speakers will cover a wide range of topic from comparative developmental biology to analysis of behaviours and pathologies of the nervou...

The problem of the causative agent of epidemic influenza, and especially that of the importance of Pfeiffer's Bacillus influenzce, until recently generally believed to be the infecting organism in this disease, seems still far from solution. Of late, much attention has been directed to the search for a filterable virus, and success has been reported by a number of independent workers. Nicolle a...

In crude homogenates of the submaxillary gland of the male mouse, epidermal growth factor (EGF) activity was found almost entirely in a high molecular weight complex (about 74,000 daltons). This high molecular weight form may be reversibly dissociated into EGF and an EGF-binding protein. EGF was found to have a molecular weight of approximately 6400. The EGF-binding protein has a molecular weig...

The observations, primarily by Dienes and associates, of L colonies arising spontaneously or by penicillin induction from species of Proteus or Salmonella led to the description of two morphologically distinct colonial forms, designated as the 3B type and the 3A type. It has been reported further that the viable elements of these two types exhibit markedly dissimilar properties such as size, nu...

A variety of frost-crystal forms found growing from the vapor in ice caves and tunnels in the Antarctic are described and illustrated . Complex la yered structures found within large, skeletal cr ystals are ascribed to the action of the temperature gradient. Some novel c-axis growth forms and a rare type of bicr ys tal growth accelerated growth in a particular direction along a particular grain...

Growing bacterial L forms are reputed to lack peptidoglycan, although cell division is normally inseparable from septal peptidoglycan synthesis. To explore which cell division functions L forms use, we established a protocol for quantitatively converting a culture of a wild-type Escherichia coli K-12 strain overnight to a growing L-form-like state by use of the beta-lactam cefsulodin, a specifi...