scholarly journals Creation and Promotion of Branded Tourism Products – Analysis of Selected Issues

2021 ◽  
Vol XXIV (Issue 4B) ◽  
pp. 148-154
Author(s):  
Daniel Szostak
Keyword(s):  
Products Analysis

Improvement of Ctenopharyngodon idella reproduction technology under the conditions of water fish fishery

2020 ◽  
pp. 58-65
Author(s):  
I. Nikishkin ◽  
L. Zakonnova
Keyword(s):  
Energy Production ◽  
Fertilization Rate ◽  
Ctenopharyngodon Idella ◽  
Hormonal Stimulation ◽  
Hydrochemical Regime ◽  
Early Maturation ◽  
Planting Material ◽  
Products Analysis ◽  
Grass Carp Ctenopharyngodon Idella ◽  
Herbivorous Species

The most rational way to reduce the eutrophic load on reservoirs-coolers of energy enterprises, in which the technological processes of energy production and growing fish products are not disrupted, is the introduction of fish-reclaimers into the reservoir. In this regard, full-system fisheries of this type include the production of fish-planting material of herbivorous species, in particular grass carp Ctenopharyngodon idella in their work plan. In the production conditions of Belovsky Fisheries LLC, a technology for growing planting material and commercial products of the white Amur has been developed, which has fully justified itself. At the same time, certain difficulties are associated with obtaining high-quality sexual products of herbivorous fish. Due to the technological features and hydrochemical regime of the reservoir, the production of plant-eating fish planting material is carried out with a high risk of over-aging of sexual products. Analysis of the results of spawning campaigns revealed a number of problems, including: zero percent of fertilization, early maturation and release of part of the eggs by females after a permissive injection, and gonad thrombosis. To solve the problem of low fertilization rate, special attention should be paid to sufficient oxygen concentration in water during pre-spawning operations with producers of Cupid. The problem of over-aging of sexual products and gonad thrombosis is proposed to be solved by using a flexible scheme of hormonal stimulation of producers.

The roles of halides in the acetaminophen degradation by UV/H2O2 treatment: Kinetics, mechanisms, and products analysis

2015 ◽  
Vol 271 ◽  
pp. 214-222 ◽  
Author(s):  
Yanyun Li ◽  
Weihua Song ◽  
Wenjie Fu ◽  
Daniel C.W. Tsang ◽  
Xin Yang
Keyword(s):  
H2o2 Treatment ◽  
Products Analysis

scholarly journals Aspects of chemical training of the personnel for organic farming

2021 ◽  
Vol 11 (3) ◽  
pp. 154-165
Author(s):  
M. D. Grigorieva ◽  
S. L. Belopukhov
Keyword(s):  
Organic Farming ◽  
Raw Materials ◽  
Well Being ◽  
Safety Control ◽  
Research Activities ◽  
Russian State ◽  
Qualified Personnel ◽  
Products Analysis ◽  
Instrumental Methods ◽  
The Impact

Organic farming is aimed at providing the population with high-quality safe agricultural products and preserving the ecological well-being of agrocenoses and adjacent territories. The implementation of this project is currently associated with a number of problems, for the solution of which educational institutions must train qualified personnel. The authors investigated the aspects of chemical training of specialists necessary for the development of organic farming. The article considers three groups of specialties: 1) farm specialists working with soil and plants (agronomists, soil scientists, ecologists); 2) specialists engaged in product processing (food production technologists, medicinal and essential oil raw materials technologists, biotechnologists, etc.); 3) specialists of laboratories for quality control of raw materials and finished products. Analysis of the labor functions of specialists, the goals and objectives of organic farming, as well as the experience of cooperation of the Department of Chemistry of the Russian State Agricultural University-Moscow Agricultural Academy named after K. A. Timiryazev with agricultural farms for the implementation of organic technology, showed that the most important components of chemical education are as follows: 1) basic chemical training that allows to understand and manage the dynamic processes occurring in the agrosphere; 2) modern instrumental methods of analysis necessary for quality and safety control of raw materials and products, agrochemical diagnostics of soils and water sources; environmental monitoring to assess the impact of agriculture on soil fertility; research activities; evaluation of processing, storage, packaging methods. Laboratory specialists should have the competence to perform physico-chemical determinations of test samples. Other groups of specialists should know the purpose of the methods, be able to interpret the results of determinations. The article presents educational programs of different levels (bachelor’s, master’s, qualification enhancement), which allow to form the necessary chemical competencies.

scholarly journals GENETIC ANALYSIS OF THE CENTROMERIC HETEROCHROMATIN OF CHROMOSOME 2 OF DROSOPHILA MELANOGASTER: DEFICIENCY MAPPING OF EMS-INDUCED LETHAL COMPLEMENTATION GROUPS

Genetics ◽  
1976 ◽  
Vol 83 (4) ◽  
pp. 765-782
Author(s):  
Arthur J Hilliker
Keyword(s):  
Drosophila Melanogaster ◽  
Present Report ◽  
Heterochromatic Region ◽  
Centromeric Heterochromatin ◽  
Genetic Constitution ◽  
Genetic Dissection ◽  
Chromosome 2 ◽  
Multiple Alleles ◽  
Products Analysis ◽  
Dominance Tests

ABSTRACT Until recently, little was known of the genetic constitution of the heterochromatic segments of the major autosomes of Drosophila melanogaster. Our previous report described the genetic dissection of the proximal, heterochromatic region of chromosome 2 of Drosophila melanogasterby means of a series of overlapping deficiencies generated by the detachment of compound second autosomes (Hilliker and Holm 1975). Analysis of these deficiencies by inter se complementation, pseudo-dominance tests with proximal mutations and allelism tests with known deficiencies provided evidence for the existence of at least two loci between the centromere and the light locus in 2L and one locus in 2R between the rolled locus and the centromere. These data in conjunction with cytological observations demonstrated that light and rolled and three loci lying between them are located within the proximal heterochromatin of the second chromosome.——The present report describes the further analysis of this region through the induction with ethyl methanesulphonate (EMS) of recessive lethals allelic to the 2L and 2R proximal deficiencies associated with the detachment products. Analysis of the 118 EMS-induced recessive lethals and visible mutations recovered provided evidence for seven loci in the 2L heterochromatin and six loci in the 2R heterochromatin, with multiple alleles being obtained for most sites. Of these loci, one in 2L and two in 2R fall near the heterochromatic-euchromatic junctions of 2L and 2R respectively. None of the 113 EMS lethals behaved as a deficiency, implying that the heterochromatic loci uncovered in this study represent nonrepetitive cistrons. Thus functional genetic loci are found in heterochromatin, albeit at a very low density relative to euchromatin.

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