It is. proved that every continuous value is. diagonal, which in particular implies that every value on a closed reproducing space is diagonaL We deduce als.o that there are noncontinuous values.
Human leukocyte extracts, egg white lysozyme, cationic proteins, polymyxin, colimycin, and phenol are capable of releasing lipoteichoic acids (LTA) from group A streptococci and Strep. mutans. While the extraction of LTA by phenol is optimal at pH 4.7, the release of LTA from streptococci by the other agents is optimal at pH 7.4. LTA released by all agents was found to have the same sensitizing abilities, as determined by passive hemagglutination, and to have a similar chemical composition, as shown by thin-layer chromatography and radioactive scanning. The LTA-releasing capacity of all the agents is strongly inhibited by normal human serum. The possible role played by LTA released by leukocyte factors in the pathogenesis of tissue damage during bacterial infections is discussed.
Hydrogenation of 1,4- (I) and 1,3-di-tert-butylbenzene (II), p-xylene (III), and m-xylene (IV) over a Rh/Al2O3 catalyst at 0.34-150 atm H pressure was examd. With I, the rate of hydrogenation, the amt. of intermediate cyclohexene formed, and the cis-trans ratio of final product all increased, then decreased, with increasing pressure, but with II the rate and amt. of intermediate increased, while the product cis-trans ratio decreased, with increasing pressure. Hydrogenation of III paralleled that of I, except that the cis-trans ratio of dimethylcyclohexane steadily increased with increasing pressure; the same pressure effect on product isomer distribution was obtained with IV, but with IV the rate of hydrogenation increased with pressure throughout the obsd. range. The results are discussed in terms of possible types of reactive sites and their interconversion. [on SciFinder(R)]
This tribute to the memory of Gaston Wiet, who died in 1971, consists of 28 articles which, with four exceptions, treat aspects of Islamic civilization: its historical developments, its expression in art, architecture, and literature; its manifestations as a religion in theory and practice. Three of the four exceptions deal with Sasanian studies, the fourth is devoted to the Crusades.
The twenty-four articles concerning Islamic civilization were intended to be, and are, as diverse and wide in scope as Wiet's own interests and publications. In terms of time they stretch from the Sasanian period until the present day.
D Salzmann, Gazit, Y , Komet, Y , Krumbein, AD , Loebenstein, HM , Oron, M, Paiss, Y , Rosenblum, M , Szichman, H , Zigler, A , ו others, . 1977.
“Experimental And Theoretical Studies Of Laser-Produced Plasmas At The Soreq Nuclear Research Center”. Laser Interaction And Related Plasma Phenomena: Volume 4A, Pp. 407–420.
Although a mass of evidence exists which supports the etiologic relationship between group A streptococcal infections and the pathogenesis of human disease (6, 36, 49, 103, 112), our knowledge of the mechanisms involved in the initiation of the tissue lesions characteristic of the sequelae of streptococcal infection in man is far from complete. The hallmarks of the poststreptococcal sequelae in humans are the development of rheumatic fever, arthritis, glomerulonephritis, chorea and other less defined clinical manifestations. Lasegue’s dictum (68) that “acute rheumatism licks the joints but bites the heart” still characterizes the significance of cardiac and joint involvement as “major” manifestations, which are related to their importance as diagnostic criteria, but do not necessarily refer to their importance in the severity of the process, its activity, or prognosis.
Isaac Ginsburg, Neeman, N. , Ephrati, C. , Sela, Michael N, Bierkenfeld, L. , Kutani, D. , ו Lahav, Meir . 1977.
“Further Studies On The Bactericidal And Bacteriolytic Effects Of Human Leukocyte Extracts”. בתוך Movement, Metabolism And Bactericidal Mechanisms Of Phagocytes, Pp. 323-334. Padua : Piccin Medical Books.
תקציר FURTHER STUDIES ON THE BACTERICIDAL AND BACTERIOLYTIC EFFECTS OF HUMAN LEUKOCYTE EXTRACTS: MODULATION BY ANTIBODIES CATIONIC PROTEINS, LYSOZYME, ANTIBIOTICS AND BY AUTOLYTIC SYSTEMS AND THE ROLE PLAYED BY SOME OF THESE FACTORS IN THE EXTRACTION OF LIPOTEICHOIC ACIDS FROM BACTERIA
A heat-stable factor present in extracts of human blood leukocytes is capable of lysing young Staphylococcusaureusat pH 5.0. Lysis is character- ized by breakdown of cell-wall components as judged by electron microscopic and biochemical analysis. The leukocyte extracts can be replaced by a variety of agents known to injure cell membranes, e.g., leukocyte cationic protein histone, polymyxin B, colimycin, phospholipase A, and lysolecithin. The mechanisms by which all these agents bring about the degradation of the sta- phylococcal walls was studied. By using 4C-labeled cell walls devoid of cytoplasmic structures, it was demonstrated that none of the above-men- tioned agents had a direct lytic effect on purified cell walls. On the other hand, when any of these agents first interacted with intact staphylococci, a factor (presumably an autolysin) was generated that directly lysed the cell walls. Lysis of cell wails in the presence of intact staphylococci used as a source of autolysin was strongly inhibited by a variety of anionic poly- electrolytes such as heparine and liquoid. The possible role olayed by bacterial autolysins in the generation of microbial cell-wall comp ,nents capable of triggering chronic inflammation is discussed.
