Differentiation of Klebsiella Enterobacter Serratia organisms

ArticleThe original publication is available at http://www.samj.org.zaDifferentiation of 625 strains of bacteria which fulfilled the requirements laid down for the definition of Klebsielleae was carried out using 6 biochemical tests. 546 strains were identified as members of the genus Klebsiella, 46 of the genus Enterobacter and 33 of the genus Serratia.South African Medical Research CouncilPublishers' versio

Escherichia coli serotypes associated with urinary tract infections in the Western Cape

CITATION: Brede, H. D., et al. 1974. Escherichia coli serotypes associated with urinary tract infections in the Western Cape. South African Medical Journal, 48(7):261-263.The original publication is available at http://www.samj.org.zaExamination of 3,261 specimens of urine from patients with urinary tract infections led to the isolation of E. coli types from 933 samples (28.6%). Serological typing revealed 222 isolates (23.8%) as urinary or as enteropathogenic serotypes. The rest were untypable. The following urinary types were identified: O 1, O 2, O 4, O 5, O 6, O 7, O 9, O 11, O 18, O 39, O 75, the commonest being O 6, O 4, and O 75. Enteropathogenic types were O 26-B6, O 55-B5, O 86-B7, O 111-B4, O 112-B11, O 119-B14, O 124-B17, O 125-B15, O 126-B16, O 127-B8, O 128-B12, and O 142-B. Types O 112 and O 111 were the most prevalent. The 1973 pattern of urinary E. coli infections in the Western Cape differs from that found in other parts of the world. Type O 6 is most prevalent, followed by O 4, and O 75. The last is the most common type north of the equator. Other types were far less frequent. Crossreactivity between 14 V. cholerae strains and E. coli O 39 antiserum was proved, suggesting similarities between the enterotoxins of V. cholerae and pathogenic E. coli strains.Publisher’s versio

Differentiation of Klebsiella Enterobacter Serratia organisms

ArticleThe original publication is available at http://www.samj.org.zaDifferentiation of 625 strains of bacteria which fulfilled the requirements laid down for the definition of Klebsielleae was carried out using 6 biochemical tests. 546 strains were identified as members of the genus Klebsiella, 46 of the genus Enterobacter and 33 of the genus Serratia.South African Medical Research CouncilPublishers' versio

Lord Somers camp & Power House: a response to a climate of fear: the early years 1929-1941

Master of EducationThe year 1929 saw the commencement of the Great Depression in Australia, and a period of intensified class hostility, a class bitterness which had its recent origins in the divisions in Australia which became evident during the Great War. State Labor governments and militant unions were confronted by right-wing para-military organisations such as the New Guard and the League of National Security which were Formed by middle-class citizens to defend their property against what they saw was a breakdown of civil order, and a possible communist revolution. Lord Somers Camp & Power House was not a para-military association, but it was one experiment in social amelorative engineering. Its founders, the Governor of Victoria, Arthur Lord Somers, and the St. Kilda physician, Or C. G. Mc Adam were inspired by an ideal of a united people striving harmoniously in the national interest. They saw class divisions as artificial and easily bridged by personal social contacts. They wanted to engender something of the spirit they had both experienced in the Great War in which class and sectional interests had seemed to melt away in the Face of the common enemy. They believed, naively perhaps, that people only needed to be � brought together so that they could have the opportunity to understand the others point of view, and class divisions would evaporate. To this end they organised a distinctive camp - Lord Somers Camp - and a supporting association - the Power House - to bring together prominent young leaders From the Great Public Schools with talented young apprentices From industry. It was a camp For the Future leaders of society, and it was to be an intense experience, at Lord Somers Camp. It was expected that a network of personal Friendships would be Formed, and would be maintained by regular association in the Power House, an umbrella organisation which was to conduct a number of sporting and social clubs From a headquarters adjacent to the Albert Park Lake in South Melbourne. Lord Somers and Or C. G. Mc Adam were not the Founders oF the rationale behind. the Lord- Somers Camp 6 Power House. Lord Somers was introducing to Victoria a concept he had experienced in Britain -the Ouke of York Camps - founded by the Future King George VI before he came to the throne - back in 1923. Lord Somers Camp was directly modelled on the Duke of York Camps even to the details. Was Lord Somers Camp a political instrument of upper middle-class reactionaries attempting to ensnare the pick of working class youth into the ways of imperial righteousness? It is a possible interpretation of- such a unique association's aims, but there is no documentary evidence to illustrate that this was the case. The personal social and political stance of many adults associated with Lord Somers Camp was of the "God, King, Country and Empire" variety, but this is not the same thing as suggesting that they aimed to indoctrinate working-class youth with these values. Having said this it must also be stressed that the mixing of young men From different classes in society. under Establishment leadership is a venture with profound political assumptions, even if-held at high level of generality. What did Lord Somers Camp & Power House have in common with such associations as the League of National Security or the New Guard ? In one sense nothing at all; in another sense they were different responses to the same situation of extreme class divisions within society. Did Lord Somers Camp and Power House transform society as its Founders hoped it might ? The answer to this question must be negative, because the concept of the camp and the Power House was built on- the illusion that class barriers were only artificial, and did not involve, [as they do, of course], issues of wealth, status, power, opportunity, security and access to education. These substantial matters could not be remedied by a Few social contacts among people From opposed social classes

Impact of frequency selective channels on a line-of-sight MIMO microwave radio link

Two line-of-sight (LoS) multiple-input multipleoutput (MIMO) systems for point-to-point microwave radio links are simulated and analyzed. Both 2×2 spatially-separated, singlepolarized and 4×4 spatially-separated, dual-polarized systems are considered in the presence of a frequency selective and time varying channel. Time dependence is introduced by moving the antennas during the simulation and thereby introducing the need for an adaptive space-time-equalizer (STE). Our results indicate that a time-varying frequency selective LoS MIMO channel puts higher requirements on the STE and introduces a higher SNR penalty compared to a single-input single-output (SISO) system. © 2010 IEEE

Aperiodic switched array for line-of-sight MIMO backhauling

\u3cp\u3eA switchable aperiodic array solution is proposed to increase the minimum channel capacity of a multiple-input-multiple-output (MIMO) backhauling system over an extended line-of-sight communication range. The objective is to propose a low-complexity design solution that is cost-effective in regard to the manufacturing, installation, and its design process. It is shown that by adding only one switch and one auxiliary antenna per base station, a 4 × 4 MIMO system can be realized that is capable of minimizing the capacity loss that both regular and aperiodic arrays suffer from as a function of the link distance.\u3c/p\u3