CHANGES IN THE TENTH EDITION OF STANDARD METHODS FOR THE EXAMINATION OF DAIRY PRODUCTS*

1954 ◽  
Vol 17 (5) ◽  
pp. 148-153
Author(s):  
Luther A. Black
Keyword(s):  
Dairy Products ◽  
Growth Inhibitors ◽  
Standard Methods ◽  
Microbiological Methods ◽  
New Material ◽  
Sampling Procedures ◽  
Made In

Methods for extraneous matter and vitamin determinations have been omitted and new material added on growth inhibitors, detection of psychrophilic and thermoduric bacteria, improved sampling procedures for milk in tanks or vats, and for gassed or pressurized creams. Changes in microbiological methods include milk tree plating agars and use of metal 0.01 ml. transfer syringes and 3 alternative staining procedures in the direct microscopic methods. Numerous revisions or modifications made in other bacteriological and chemical procedures are reviewed.

THE THIRTEENTH EDITION OF STANDARD METHODS FOR THE EXAMINATION OF DAIRY PRODUCTS1,2

1972 ◽  
Vol 35 (5) ◽  
pp. 285-290 ◽  
Author(s):  
E. H. Marth
Keyword(s):  
Dairy Products ◽  
Sampling Methods ◽  
Academic Community ◽  
Regulatory Agencies ◽  
Chemical Methods ◽  
Milk Products ◽  
Standard Methods ◽  
Professional Societies ◽  
Confirmatory Tests ◽  
Made In

An Intersociety Council was appointed late in 1968 to develop the 13th edition of Standard Methods for the Examination of Dairy Products (SMEDP). The Council was made up of 9 persons who represented professional societies, regulatory agencies, the dairy industry, and the academic community. The Council enlisted the help of 58 other persons who are experts in various fields and jointly prepared the 21 chapters and 2 appendices in the 13th edition of SMEDP. Major features of the 13th edition of SMEDP include: (a) a detailed review of pathogens which have occurred in milk and milk products, (b) a separate chapter on sampling methods of all kinds, (c) a separate chapter on media and reagents and on methods for their preparation, (d) a chapter on screening and confirmatory tests for abnormal milk, (e) expansion of the chapter on chemical methods, and (f) inclusion of supplemental microbiological and chemical methods in the appendices, which will be on paper of a color different from that of the chapters. Numerous minor changes, both editorial and in technical matters, have been made in all chapters and appendices.

L'histoire des nombres amiables: le témoignage des textes hébreux médiévaux

1996 ◽  
Vol 6 (1) ◽  
pp. 63-87 ◽  
Author(s):  
Tony Lévy
Keyword(s):  
Strong Support ◽  
Hebrew Text ◽  
17Th Century ◽  
Medieval Europe ◽  
History Of ◽  
New Material ◽  
Made In

This article analyzes new material on the history of the amicable numbers. It discusses Hebrew texts which throw new light on the diffusion in Medieval Europe of Ṯābit ibn Qurra's (9th century) work. We find Ṯābit's theorem on amicable numbers in a Hebrew translation, made in Saragossa in 1395, of an arithmetical commentary written by Abū al-Ṣalt al-Andalusī (ca. 1068–1134), and also in an original Hebrew text probably written by the Jewish Provençal scholar Qalonymos ben Qalonymos (1287 – after 1329). These texts lend strong support to the surmise that the Arabic tradition concerning amicable numbers could not have remained unknown to European mathematicians before the work of Descartes and Fermat in the 17th century.

scholarly journals The Slow March toward Rapid Phenotypic Antimicrobial Susceptibility Testing: Are We There Yet?

2018 ◽  
Vol 56 (4) ◽  
pp. e01999-17 ◽  
Author(s):  
Christopher D. Doern
Keyword(s):  
Antimicrobial Susceptibility ◽  
Rapid Growth ◽  
Gold Standard ◽  
Historical Perspective ◽  
Susceptibility Testing ◽  
Turnaround Time ◽  
Antimicrobial Susceptibility Testing ◽  
Standard Methods ◽  
Phenotypic Susceptibility ◽  
Made In

ABSTRACT Antimicrobial susceptibility testing (AST) provides critical information for the management of patients with infections. The gold standard methods for assessing organism susceptibility are still based on growth and require incubation over relatively long periods of time. Until now, little progress has been made in developing rapid, growth-based, phenotypic AST systems. This commentary puts the recently FDA-cleared Accelerate PhenoTest (P. Pancholi et al., J Clin Microbiol 56:e01329-17, 2018, https://doi.org/10.1128/JCM.01329-17) in context by providing a historical perspective on attempts to accelerate phenotypic susceptibility results. In addition, some promising new innovations that promise to shorten the turnaround time for phenotypic AST will be briefly reviewed.

scholarly journals О НЕКОТОРЫХ СТЕРЕОТИПАХ ВОСПРИЯТИЯ РОССИИ И РУССКИХ В «ЗАПИСКАХ О МОСКОВИИ» СИГИЗМУНДА ГЕРБЕРШТЕЙНА

2018 ◽  
Author(s):  
О.Ф. Кудрявцев
Keyword(s):  
Comprehensive Description ◽  
New Material ◽  
Made In

Книга Сигизмунда Герберштейна «Записки о Московии» (1-е изд. – 1549 г.) – самое полное и обстоятельное описание Российской страны, сделанное в Европе в эпоху Возрождения. В ней много нового материала, который ее автор, гуманистически образованный европеец, тем не менее, очень часто использовал для иллюстрации старых, закоснелых стереотипов восприятия Руси/Московии/России, сложившихся в гораздо более раннее время. The Herberstein’s work “Rerum Moscoviticarum commentarii” (1st ed. – 1549) is the most full and comprehensive description of Russia made in the Renaissance Europe. It contains a lot of new material, which the author, the humanistically educated European, mainly used nevertheless to illustrate the old, obdurate stereotypes of perception the Rus’/Muscovy/Russia formed in the previous centuries.

scholarly journals Molecular Detection of Burkholderia cepacia in Toiletry, Cosmetic, and Pharmaceutical Raw Materials and Finished Products

2000 ◽  
Vol 83 (4) ◽  
pp. 963-966 ◽  
Author(s):  
Luis Jimenez ◽  
Stacey Smalls
Keyword(s):  
Burkholderia Cepacia ◽  
Raw Materials ◽  
Pcr Detection ◽  
Proteinase K ◽  
Tween 20 ◽  
Pcr Assay ◽  
Isolation And Identification ◽  
Standard Methods ◽  
Microbiological Methods ◽  
Dna Primers

Abstract A polymerase chain reaction (PCR) assay was developed and compared with standard methods for rapid detection of Burkholderia cepacia, a major industrial contaminant, in cosmetic and pharmaceutical raw materials and finished products. Artificially contaminated samples were incubated for 24 h in trypticase soy broth containing 4% Tween 20 and 0.5% soy lecithin. DNA was extracted from each sample using a proteinase K-tris-EDTA-Tween 20 treatment at 35°C. The extracted DNA was added to Ready-To-Go PCR beads and specific DNA primers for B. cepacia. The B. cepacia DNA primers coded for a 209-base pair (bp) fragment of the 16S rRNA ribosomal gene. No DNA amplification was observed in samples that were not spiked with B. cepacia. However, all contaminated samples showed the specific 209-bp fragment for B. cepacia. There was a 100% correlation between standard methods and the PCR assay. Standard microbiological methods required 5–6 days for isolation and identification of spiked microorganisms, whereas PCR detection and identification was completed in 27 h. PCR detection of B. cepacia allows for rapid quality evaluation of cosmetic and pharmaceutical raw materials and finished products.

Patchiness of murein insertion into the sidewall of Escherichia coli

Microbiology ◽  
2003 ◽  
Vol 149 (7) ◽  
pp. 1753-1761 ◽  
Author(s):  
Miguel A. De Pedro ◽  
Heinz Schwarz ◽  
Arthur L. Koch
Keyword(s):  
Escherichia Coli ◽  
Cell Division ◽  
Gram Negative ◽  
New Material ◽  
Wall Growth ◽  
Kinetics Of ◽  
Made In

This paper extends, with computer techniques, the authors' previous work on the kinetics of pole wall and sidewall synthesis in Escherichia coli. These findings extend the conclusion that the nascent poles are made of entirely new material and that no new material is inserted into old poles. This requires re-evaluation of ideas in the literature about wall growth and cell division. Mechanisms of various types have been suggested for the growth of Gram-negative rod-shaped bacteria and these will also require major re-evaluation because of the finding, reported here, that the sidewall is made in several modes: patches of new murein, bands of new material largely going circumferentially around the cell, and areas of the sidewall that are enlarged by an intimate and regular admixture of new with the old muropeptides.

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