Suchergebnisse

<div><p><em>The study was carried out to determine the profitability and resource use efficiency of poultry-egg production in Yobe State. A sample of 200 poultry-egg farmers was selected by multistage sampling technique and data were collected by using a structured questionnaire. The data were analyzed using descriptive statistics, budgetary analysis, and Stochastic Frontier Analysis techniques. The study revealed that poultry-egg production enterprise is profitable in the study area. Maximum Likelihood Estimate of coefficients of the stochastic frontier model for poultry-egg production were all positive and the parameters estimates of farm size, veterinary services, feed intake and labour were statistically significant, indicating that they contributed incrementally to the total value of poultry-egg output in the study area. Analysis of inefficiency model shows that factors influencing technical efficiency were years of experience, access to credit, cooperative membership and extension contact. Recommendations include the establishment of feed producer cooperative society, provision of adequate and timely veterinary services, and access to credit, frequent extension contacts and adult education classes for the farmers.</em></p></div>

In this work we propose to use a heptane-ethanol extract of the ionic associate of higher carboxylic acids with a cationic dye – pyronin G (Y) for quantitative extraction-photometric and extraction-fluorimetric determination of carboxylic acids in dairy products. The resulting ion associate is characterized by a maximum of optical density at 510 nm and intense of fluorescence with a maximum at 566 nm. The maximum optical density and fluorescence intensity of the ion associate is observed during its extraction with octanol/heptane from aqueous solutions with pH = 11.25. The quantum yield of ionic associates of higher carboxylic acids with pyronine G (Y) relative to the standard solution of fluorescein was calculated. A technique has been developed for the extraction-fluorimetric determination of hydrophobic acids in milk and cheese. The method has been tested in the determination of carboxylic acids content in milk and cheese samples. The content of higher carboxylic acids, determined by the method with pyronin G, in milk was (6.6 ± 0.15) · 10–4 M, in cheese – (1.1 ± 0.10) · 10–3 mol/kg. The obtained results of extraction-photometric and extraction-fluorimetric determination of carboxylic acids in dairy products make it possible to recommend the developed method in the practice of institutions of the corresponding profile.

Cationic dyes of various natures have been investigated in order to select a dye that is stable under strongly alkaline conditions and applicable for the quantitative extraction-photometric determination of higher carboxylic acids. The nature of the dye, solvent, the length of the hydrocarbon radical of carboxylic acids and the pH of the aqueous phase for the extraction of ionic associates of higher carboxylic acids with cationic dye with pyronin G were experimentally studied. The study substantiates the practical application of the cationic dye pyronin G as an effective reagent for the quantitative extraction-photometric determination of higher carboxylic acids.

Respect for human dignity and respect for people of his culture equivalent. Deliberate attacks on objects of cultural value - is a manifestation of contempt, and contempt is often invoked as a justification or excuse for more serious violations, the forerunner of which it often is. Destruction of cultural property can not be perceived as a simple destruction of objects. This is an attempt to destroy the cultural identity of a society. Thus, efforts to protect the cultural values of the population and, consequently, its merits are an important component of humanitarian action to provide protection to this population. This paper overviews the crimes associated with the customs aspect of illegal actions against the cultural valuables, namely with smuggling and non-return of the same according to the legislation of the Russian Federation. It justifies the need to facilitate cooperation between the global companies fighting against illegal turnover of cultural valuables.