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Results 541 to 570 of 631:

HODNOCENÍ PŘIPRAVENOSTI EGOVERNMENTU ČESKÉ REPUBLIKY

Jana Andrýsková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(6), 13-18 | DOI: 10.11118/actaun200957060013

Modern information technologies has entered all spheres of human activities, public administration authorities are not exceptions. There has been significantly increasing tendency in using information and communication technologies since beginning of the century in public administration. Despite of some indicators, progress of public administration information systems is too slow. Several organizations are engaged of eGovernment assessment at the international level. We can find some variations in the methodologies that cause different ranking of some countries in international comparison. The main goal of this paper is to analyze and assess the present state of Czech Republic eGovernment with using both external indicators and internal indicators. eGovernment index, developed by United Nations, will be the main external indicator of eGovernment quality of the Czech Republic. It includes both potential for eGovernment development and its implementation, and it's the most complete international ranking at present. It is defined as average of the telecommunication infrastructure index, the human capital index and the web measure index. It represents overall country ability to engage and implement eGovernment. Internal ranking of the Czech Republic eGovernment will be based upon eGovernment level coefficient, that is defined as multi-dimensional model based on technology and communication facility index, Internet using index, using of public administration services by persons and companies, poviding obligatory information, existence of electronic registry on web pages, web pages accessability and language mutations. Selected statistic data are related to information society and using information technologies in public administration and were published on Czech Statistical Office or evaluated on the bases of previous years' development.

RECIPROČNÍ DEFORMACE SOUBORŮ POLYURETANOVÝCH PĚN V KONSTRUKCI ČALOUNĚNÉHO NÁBYTKU

Věra Jančová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(1), 61-70 | DOI: 10.11118/actaun200957010061

The quality of upholstered furniture is currently evaluated through a set of attributes that reflect the "comfort" of the product. Measurable features are evaluated using the test methods, which include an assessment of the product as a whole or only of the individual materials. Methodology to assess materials in the construction of material compositions has not yet been processed before. This work deals with the issue of a evaluation of the material sets of polyurethane foams and their mutual influence. New methodology has been proposed for evaluating mutual deformation of foams sets that has been named "reciprocal deformation of foam sets" in this work. Using this newly proposed method, selected types of polyurethane foams were assessed, in combination with recycled bonding polyurethane foam-type RE 80. The results of the measurements were evaluated and assembled into the graph in order to create a simple tool for the construction of material composition in the mold layer of upholstered furniture. The graph can easily be deducted; it answers the question of what value of deformation is to be considered in drawing up a set of foam materials and recycled PU foam in the construction of material composition.

Zoobentos malých toků Svitavska

Ivo Sukop

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(5), 199-202 | DOI: 10.11118/actaun200856050199

The qualitative and quantitative composition of macrozoobenthos of two brooks of the Svitavy region was studied. Both brooks rise in the region with formerly mines. Altogether, 61 taxa of macrozoobenthos were determined. Saprobical indices of both brooks correspond to beta-mesosaprobity class at all sampling sites.

INOVAČNÍ POLITIKA MALÝCH A STŘEDNÍCH PODNIKŮ V JIHOMORAVSKÉM A MORAVSKOSLEZSKÉM KRAJI: VÝSLEDKY VÝZKUMNÉHO ŠETŘENÍ

Tomáš Heralecký, Tomáš Meluzín

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(6), 89-98 | DOI: 10.11118/actaun200957060089

The aim of the paper was to identify the present situation in innovation policies of small and medium-sized enterprises in the South Moravian and Moravian Silesian regions. In order to achieve the specified objective, quantitative research was carried out in the small and medium-sized enterprises by way of questionnaires. The achieved results imply that the enterprises under investigation apply competitive strategy focusing on top quality of goods on offer. The research manifested that the companies focused markedly on innovations in supplying products on offer with additional functions or features. The research results show that the companies do not conduct changes in production organization frequently, not even following their earlier innovative activities. The results of the research into the innovative activity "change in product design" imply that this activity is not applied frequently in comparison with the above-mentioned activities. Based on the interviewed companies' weak points in human resources, the elementary drawbacks include lack of management's command of foreign languages as well as production staff's expert skills. The results of the research imply that the interviewed companies perceive the sphere of products (improved product quality, extension of a product range), the sphere of new technologies and the sphere of an increase in market potential as the most significant. The questionnaire inquiry shows that innovative and development activities are most frequently financed from companies' own funds, subsidies/grants, bank credits and leases. Mortgages and venture capital are only made used of occasionally.

MIKROBIOLOGICKÉ A SENZORICKÉ VLASTNOSTI JOGURTŮ A JEJICH ZMĚNY PO UPLYNUTÍ DOBY MINIMÁLNÍ TRVANLIVOSTI

Libor Kalhotka, Květoslava Šustová, Tomasz Göbel, Blanka Kvasničková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 167-176 | DOI: 10.11118/actaun200957050167

The aim of the work was determined of microbial and sensory quality of selected white yoghurts in the course of their shelf-life. The samples of yoghurts were produced in dairy Olma, joint-stock company Olomouc. The selected white yoghurts Revital Active (in addition of probiotic culture composed of Bifidobacterium sp., Lactobacillus acidophilus and Lactobacillus rhamnosus), Klasik, Bio yoghurt Via Natur, Silueta light (0.1% fat, sugarless) and Florian were assessed in fresh condition and after an expiration date. Total counts of microorganisms, lactic acid bacteria, yeasts, moulds and coliform bacteria have been checked in the samples of yoghurt. Texture, aroma, taste, acidity and total sensation were assessed by sensory analyse. Titrating acidity was carried out in accordance with CSN ISO 57 0530. The counts of lactic acid bacteria ranged from 105 CFU/g to 107 CFU/g and total counts microorganisms ranged from 108 CFU/g to 109 CFU/g at the beginning of best before date. The lowest counts of lactic acid bacteria were detected in Bio yoghurt (4.62 × 105 CFU/g). The counts of microorganisms in the samples of yoghurt were similar or with certain difference all the time of best before date. The counts of undesirable microorganisms (i.e. coliform bacteria, yeasts and moulds) weren't detected. Sensory assessment confirmed that white yoghurts are satisfactory and fulfil qualitative expectation also over all negative changes along storage.

3D vizualizace a tvorba konečně prvkové sítě z anatomických vzorků dřeva, Část I - Teoretický přístup

Petr Koňas, Vladimír Gryc, Hanuš Vavrčík

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(1), 71-78 | DOI: 10.11118/actaun200957010071

The work summarizes created algorithms for formation of finite element (FE) mesh which is derived from bitmap pattern. Process of registration, segmentation and meshing is described in detail. C++ library of STL from Insight Toolkit (ITK) Project together with Visualization Toolkit (VTK) were used for base processing of images. Several methods for appropriate mesh output are discussed. Multiplatform application WOOD3D for the task under GNU GPL license was assembled. Several methods of segmentation and mainly different ways of contouring were included. Tetrahedral and rectilinear types of mesh were programmed. Improving of mesh quality in some simple ways is mentioned. Testing and verification of final program on wood anatomy samples of spruce and walnut was realized. Methods of microscopic anatomy samples preparation are depicted. Final utilization of formed mesh in the simple structural analysis was performed.
The article discusses main problems in image analysis due to incompatible colour spaces, samples preparation, thresholding and final conversion into finite element mesh. Assembling of mentioned tasks together and evaluation of the application are main original results of the presented work. In presented program two thresholding filters were used. By utilization of ITK two following filters were included. Otsu filter based and binary filter based were used. The most problematic task occurred in a production of wood anatomy samples in the unique light conditions with minimal or zero colour space shift and the following appropriate definition of thresholds (corresponding thresholding parameters and connected methods (prefiltering + registration) which influence the continuity and mainly separation of wood anatomy structure. Solution in samples staining is suggested with the following quick image analysis realization. Next original result of the work is complex fully automated application which offers three types of finite element mesh. Tetrahedral mesh is coded for FE analysis with significant gradients and hexahedral mesh is offered for tasks with low gradients. Modified octree code is introduced for future research of anisotropic combined mesh.

ZACHYCENÍ NEURČITOSTÍ V MODELOVÁNÍ VÝSKYTU ROSTLIN S VYUŽITÍM MAPOVÉ ALGEBRY

Jitka Machalová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(6), 143-152 | DOI: 10.11118/actaun200957060143

Information plays an important role in process of decision-making. Information and communication technologies give to the decision-makers not only relevant information, but they help in their interpretation. The basic advantage of fuzzy logic is the capability mathematic catch up the information, which is phrased. If we have set of elements, in that every element is characterised by grade of pertinence (member ship function), we call it fuzzy set. Map algebra is instrument that allows working up the raster representation of reality with using language of the map algebra. The using fuzzy sets for solving spatial problems is qualified by process in 3 steps: a) the correct definition of the type of member ship function, 2) the reserve of quality of input data, and 3) to modelling defined fuzzy sets by expert and the implementation of spatial analysis above them. The article has the goal, exemplify of modelling of occurrence of Epipogium aphyllum in the Czech Republic, to propose the way of spatial analysis above fuzzygeoelements with using map algebra. Only 4 restrictive conditions input to model, and the size of pixel in layer is 10 m. Fuzzy sets are realised above selected raster layers, that were defined in the step 1) by instruments of the map algebra. The resulting model specifies the places with documented occurrence with the high degree of member ship function.

KONVERGENCE IFRS A US GAAP V OBLASTI VÝPŮJČNÍCH NÁKLADŮ

Hana Bohušová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(3), 21-32 | DOI: 10.11118/actaun200957030021

An agreement from Norwalk was issued in September 2002 on the basis of negotiations of Financial Accounting Standards Board (FASB) a International Accounting Standards Board (IASB) for the elimination of restrictions in the form of two different systems of financial reporting. The aim is to ensure absolute compatibility of existing U.S. GAAP and IFRS and the coordination of work programs in the future. Document Memorandum of Understanding was issued in 2006 in the frame of ongoing process of convergence, in which the FASB and IASB confirm their intention to create high-quality and global financial reporting standards. In this document there are specified areas, which would lead to convergence of procedures.
Borrowing costs have been one from the fields, which was the subject of convergence works. U.S. GAAP dictated capitalization of borrowing costs incurred in connection with the acquisition of qualifying assets, while the IAS/IFRS leaved the decision on accounting entities, how it recognize and record borrowing costs incurred in connection with the acquisition of the assets.
In the beginning, the method of analysis and description is used to identify and describe the basic difference of both systems, which had existed before the initiation of convergence within the frame of "Borrowing Costs" project. The above mentioned primary analysis has served as the basis for the further comparative analysis and synthesis.
The paper further presents comparative analysis of two basic methodical approaches towards the borrowing costs reporting incurred in relation to the acquisition of the qualifying assets, which was possible to apply until 31st Dec 2008 under IFRS system.
The comparative analysis is based on empirical company data. The subjects are mainly the differences in the indicators, which are used for the evaluation of the company financial situation. According (Suvova, 1999), mainly the indicators of vertical analysis of property and capital structure and selected ratio indicators of return are used.
Short-term project of borrowing costs, whose aim was to unify the reporting of interest on borrowing funds on the side of IASB, was completed in March 2007 by issuing of the revised IAS 23 Borrowing Costs with effect from 1.1. 2009. The paper deals with major changes to IAS 23 occurred in the context of the IASB - Borrowing costs. Elimination of a major difference in the reporting of borrowing costs in the system IAS/IFRS and U.S. GAAP was reached by the revision of IAS 23, however all the existing differences were not removed.

Kvantifikace konkurenčních hodnot dokumentů

Pavel Šimek, Jiří Vaněk, Jan Jarolímek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 285-290 | DOI: 10.11118/actaun200957050285

The majority of Internet users use the global network to search for different information using fulltext search engines such as Google, Yahoo!, or Seznam. The web presentation operators are trying, with the help of different optimization techniques, to get to the top places in the results of fulltext search engines. Right there is a great importance of Search Engine Optimization and Search Engine Marketing, because normal users usually try links only on the first few pages of the fulltext search engines results on certain keywords and in catalogs they use primarily hierarchically higher placed links in each category. Key to success is the application of optimization methods which deal with the issue of keywords, structure and quality of content, domain names, individual sites and quantity and reliability of backward links. The process is demanding, long-lasting and without a guaranteed outcome. A website operator without advanced analytical tools do not identify the contribution of individual documents from which the entire web site consists. If the web presentation operators want to have an overview of their documents and web site in global, it is appropriate to quantify these positions in a specific way, depending on specific key words. For this purpose serves the quantification of competitive value of documents, which consequently sets global competitive value of a web site. Quantification of competitive values is performed on a specific full-text search engine. For each full-text search engine can be and often are, different results. According to published reports of ClickZ agency or Market Share is according to the number of searches by English-speaking users most widely used Google search engine, which has a market share of more than 80%. The whole procedure of quantification of competitive values is common, however, the initial step which is the analysis of keywords depends on a choice of the fulltext search engine.

SPORTOVNÍ VÝKONNOST ČESKÉHO TEPLOKREVNÍKA NA ZÁKLADĚ VÝSLEDKŮ V CHOVATELSKÝCH SOUTĚŽÍCH

Lenka Šarovská, Lucie Walterová, Sylvie Krčová, Iva Jiskrová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(1), 129-136 | DOI: 10.11118/actaun200957010129

The objective of the present study was to evaluate the sporting efficiency of the Czech warm-blooded horse on the basis of their results in breeding competitions. These competitions, so-called Criteria of Young Horses, are part of the testing of young horses. In this work we focused only on the Criteria of Young Horses in jumping competitions. These competitions are advertised only for 4 to 6-year-old stallions and mares. The competitions are state-subsidised and are based on the valid programme of subsidies for the Czech Republic. The horses get three marks: for the jump, dexterity and readiness of the horse. The authorised examiner gives the marks. All horses of sports breeds bred in the Czech Republic may take part in the competitions, i.e. the Czech warm-blooded, Slovakian warm-blooded, the Kinský horse and the Moravian warm-blooded. The organiser of these competitions is the Czech Equestrian Federation.
The evaluated results are from the period of 1998-2007. We compared the factors of sex, country of origin of the horse, age, examiner, level of difficulty of the competition and year of the venue. In these competitions 1617 horses started. The results were evaluated using analysis of variance and subsequent tests. Statistically significant differences were detected for all the evaluated factors. In terms of the sex factor the evaluation of the stallions was highly significantly (P < 0.00) higher than the mares. Comparisons of the country of origin revealed that the evaluation of imported horses was highly significantly (P < 0.00) better than of horses of Czech breeders. When comparing the age we discovered that the rating of six and five-year-old horses was statistically significantly (P < 0.00) higher than of the four-year-old horses. This factor is connected with the level of difficulty of the competition. Evaluations in the higher levels of difficulty were statistically highly significantly (P < 0.00) better than in the lower levels of difficulty. Comparisons of the factor of the year of the competition showed that the quality of the starting horses is increasing.
When we considered the possibility of applying these results to estimate the breeding value we saw the biggest problem in the great disunity in the origin of the Czech horses. In the database we discovered that each stud horse had an average of 3 offspring and the mother an average 1.3 offspring. We consider these figures to be unsatisfactory. We assume that it is possible to estimate the breeding values because the database is extensive, but the source of the great error in calculation may be the insufficient number of offspring of the stud horses.

Vliv způsobu kulinární úpravy na in vitro stravitelnost u vybraných luštěnin

Ranjani Amarakoon, Stanislav Kráčmar, Ignác Hoza, Pavel Budinský

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 13-18 | DOI: 10.11118/actaun200957050013

The aim of this study was to investigate the effect of various cooking methods on nutritional quality by evaluating in vitro digestibility of some selected legumes (two cultivars Pisum sativum and Glycine max). Samples were soaked in 0.2% NaHCO3 for 6 hours and then cooked by normal (20, 25, 30 and 35 min) pressure (8, 10, 12 and 14 min) and microwave (8, 10, 12 and 14 min) cooking. In vitro protein and dry matter digestibility were investigated. Pressure cooking and microwave cooking are recommended after soaking with the cooking time between 8-14 mins for P. sativum (Xantos and Svit) and G. max. Based on in vitro protein digestibility of all the cooking treatments, pressure cooking is the most effective.

E-LEARNINGOVÉ OBCHODNÍ MODELY

Roman Malo

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(6), 153-162 | DOI: 10.11118/actaun200957060153

E-learning is the word which is used especially for discussion of education activities, trends and problems. However, principles of electronic education are fitness for use also within business activities in the area of a support for reaching business goals and as a part of marketing activities. These ones are examples that e-learning is not understood only in its primary form - as a tool of increasing quality of human resources. As well, applying it within supply or demand business relationships is also possible in the form of a tool increasing these processes' efficiency. The necessity of suitable framework model existence is clear.
In this paper a set of issues influencing a development of business models within e-learning area is discussed. On these basics three general e-learning business models are specified. All models are universal and that is why there is no barrier for applying their utilization within various business branches.

ZMĚNY TUKU V PRŮBĚHU FRITOVÁNÍ A VÝSLEDNÁ KVALITA JEMNÉHO PEČIVA

Viera Šottníková, Klára Borutová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(1), 147-152 | DOI: 10.11118/actaun200957010147

The purpose of this attemt was to evaluate the influence of deep-frying fat on the quality of frying pastry and observe chemical changes of frying fat during frying.
The samples of frying pastry were provided by factory Penam s. r. o., Rosice. Four sorts of soft-centered friedcakes and not soft-centered friedcakes were evaluated. The samples of hydrogenated fat were taken twice always at the beginning and at the end of the frying. This lasted 7 days. Chemical analyse and qunatification fatty acid by using gass chromatography were took by these samples. The sensor evaluation was made by ten expert evaluators. Evaluators focused on following deskriptors: form, appearance, crumb, aroma, flavour of soft centred and flavour of product. We have found significant statistical differences between the products fried in the fat which was changed before and after the frying. The most differences were registered by porosity, plumpness, flavour of crumb and placement fill.
Acidity number of fat increased linearly. Peroxid number decreased at the beginning and than increased again.

PRODEJNÍ ÚSPĚŠNOST BALENÉHO ČERSTVÉHO OVOCE A ZELENINY

Radmila Presová, Oldřich Tvrdoň, Lucie Hrdá

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(6), 215-224 | DOI: 10.11118/actaun200957060215

The paper deals with the marketability of packaged fruit and vegetables, as a new trend of satisfying consumer needs, in connection with selling-culture of stall selling and self-stores sales. It emphasize fact that food have to be wrapped into the quality, health packages, under the conditions of the Act. 477/2001 Coll.
Specific data for the analytical part of this paper was provided by Hortim International Ltd. This company has operate on the Czech market since 1995. Analysis of the economic results confirmes the legitimacy of the sale of packaged fresh fruits and vegetables, but there will be neccesary longer lasting promotion. This fact also confirmed the research of consumer demand, that was made by authors. Determinant for the success sales are these factors: consumer confidence that the packaged products of fruit and vegetables are high quality.

Označovanie ovocia a rozdiel medzi domácim a dovezeným ovocím mierneho pásma z pohľadu slovenského spotrebiteľa: prípadová štúdia z nitrianskeho regiónu

Zuzana Šajbidorová, Jozef Lušňák

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(3), 165-172 | DOI: 10.11118/actaun200957030165

Fruit consumption and production in Slovakia was very low for many years and it is still decreasing. Paradoxically, population consume less fruit today as it was in 1990 although the supply of home made and imported fresh fruit has got better.
The aim of the paper is to identify and analyse the attitude and behaviour of Slovak fruit consumer from Nitra region on the basis of questionnaire research. The main task is consumer perception of information about fruit and also difference between home made fruit from Slovakia and imported soft climate fruit from abroad. We have used an association analysis to find out dependence between individual answers and respondent identification characteristics (gender, age, education, residency).
As a result the interest in fruit place of origin depends on the age of respondent and thereby on the previous fruit purchase experience - negative or positive one, respondent opinion of fruit quality class labeling in stores in Slovakia depends on respondents residency, prefering of home made soft climate fruit by its purchase in comparison to imported fruit depends on the age (previous experience) of respondent - consumer.

Vliv sinic jako krmiva na ryby

Andrea Ziková, Miroslava Palíková, Jan Mareš, Stanislav Navrátil, Radovan Kopp

Acta Univ. Agric. Silvic. Mendelianae Brun. 2010, 58(4), 277-284 | DOI: 10.11118/actaun201058040277

Development of cyanobacterial water bloom became a common issue all over the world. Cyanobacteria are the most important primary producers in aquatic ecosystems but in some abundant species their secondary metabolites called cyanotoxins seem to be harmful for many animal groups especially mammals but also fish. In fishes, adverse effects have been demonstrated in several studies applying cyanotoxins by unnatural injection. However, cyanobacteria and fish coevolved during ages and therefore the question arises whether cyanobacteria might be even used for fish via oral application (fish diet). The use of cyanobacteria for fish diets is varying including applications of pure cyanobacteria biomass as well as incorporation of cyanotoxin containing cyanobacteria biomass into commercial fish diet. The impacts of cyanobacteria in fish diets administered via the oral route revealed contradictory findings ranging from moderate negative to growth promoting impacts and it seems that any bioaccumulation of microcystins can become depurated by rearing fish in clean water for a short period. According to the results obtained from various experiments, cyanobacteria as primary producers might be used as a component of fish diets especially concerning partial replacement of fish meal. However, the determination of nutrition value and the bioavailibility of nutrients present in cyanobacteria for different fish species needs to be determined. Furthermore thorough research is needed to exclude any harmful problem for the final consumers - humans.

Analýza vztahů mezi bodem mrznutí a vybranými ukazateli zdravotního stavu vemene mezi kravským, kozím a ovčím mlékem

Oto Hanuš, Václava Genčurová, Josef Kučera, Marcela Vyletělová, Jiří Třináctý

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 103-110 | DOI: 10.11118/actaun200957050103

Milk freezing point (MFP) is important quality indicator. Aim was to analyse the relationships of MFP to selected udder health milk indicators (MIs) by comparison between cows (reference), goats and sheep. Bulk milk samples came from 3 herds of Czech Fleckvieh (B, n 93) and 1 goat herd and sheep flock (White short-haired, W, n 60; Tsigai, C, n 60). Animal nutrition was performed under the typical country conditions. MIs which were investigated: DM, dry matter; SNF, solid non fat; L, lactose (all in %); SCC, somatic cell count (103 ml-1); EC, electrical conductivity (mS cm-1); MFP (°C); Na and K (in mg kg-1). W MFP was -0.5544 ± 0.0293, B -0.5221 ± 0.0043 and C -0.6048 ± 0.0691 °C. The B MFP was related to L (-0.36; P < 0.01), W was not related to L (-0.07; P > 0.05) and C was related to L (0.40; P < 0.01). These facts could be explainable by worse SCC geometric averages for used W (3,646 103 ml-1) and C (560 103 ml-1) milk as compared to B (159 103 ml-1). Only 0.5 and 10.5% of variations in MFP were explainable by variations in DM and SNF in B, 32.7 and 12.8% in W but already 49.4 and 45.0% in C. Higher C values were caused by high MFP variability, 11.8% (C) versus 0.8% (B). There is possible to derive the more reliable MFP qualitative limits for more efficient monitoring rules of milk quality problems in B, W and C.

Parazitocenózy v produkčních chovech hlodavců v České republice

Marie Borkovcová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(1), 27-34 | DOI: 10.11118/actaun200957010027

Aim of this work was to monitor the occurrence of most common parasites of rodents in 13 commercial and hobby breeds. Most often detected protozoans belonged to genera Giardia, Eimeria and Cryptosporidium, tapeworms Hymenolepis nana and H. diminuta, nematods Syphacia obvelata and Aspiculuris tetraptera and mites Ornithonyssus bacoti, Laelaps hilaris and Notoedres muris. Diseases broke out mainly during summer months. In animals with clinical signs of illnesses there was an expectation of parasite presence, and most of them were nematods - 80%, tapeworms - 45.2%, protozoans - 41.1% and ectoparasites - 22%. Samples of animals without clinical signs of illnesses contained nematods - 16%, tapeworms - 11%, coccidians - 6% and ectoparasites - 0%. Besides evaluation of all samples, breeding conditions were evaluated as well. Consequently plan was made to remove the causes of parasitoses for each monitored breed. Most dangerous parasites were coccidians of the genus Cryptosporidium, which caused high mortality of the young animals. In Czech Republic high percent of breeds are contaminated with parasites, however, there is little experience in how to deal with these illnesses. Results are weak and low-quality breeds, especially of mice and common rats. Important protection is buying animals from well-known and verified breed with no signs of illness and also regular control of excrement samples.

Vliv uhelných popelů na kvalitu kukuřice. Část 2. Mikroelementy.

Jacek Antonkiewicz, Tomáš Lošák

Acta Univ. Agric. Silvic. Mendelianae Brun. 2007, 55(5), 9-16 | DOI: 10.11118/actaun200755050009

Studies on the effect of ashes on maize were conducted as a pot experiment on mineral soil, to which between 13.33 and 800.0 g ash∙pot-1 was added, corresponding to the doses of between 10 and 600 t∙ha-1. The research aimed to learn the effect of diversified ash doses on the content, uptake and proportions between Fe, Co, Mn, Al and Si in maize. It was found that with increasing ash dose in soil were significantly increasing the concentration of Fe and Si in plants (Fe: 110.15-209.96 mg.kg-1 d.m.; Si: 40.60-76.10 mg.kg-1), whereas concentrations of Co, Mn and Al in maize were decreasing (Co: 0.30-0.11 mg.kg-1 d.m.; Mn: 207.83-44.65 mg.kg-1; Al: 300.09-179.80 mg.kg-1 d.m). Higher contents of the studied elements were detected in maize roots than in its aboveground parts. Obtained yield of maize aboveground parts from the objects where solely ash was used as the substratum was characterized by the optimal content of Fe (104.61 mg.kg-1 d.m.), but deficient concentration of Mn (29.69 mg.kg-1 d.m.) and Co (0.01 mg.kg-1 d.m.). In effect of growing ash doses in soil Fe:Co, Fe:Mn, Fe:Al and Mn:Co ratios were widening, whereas Fe:Si, Mn:Al, Mn:Si and Al:Si ratios were narrowing. Growing ash doses in soil influenced a decreased uptake of Co, Mn and Al and increased Si absorption by maize.

VÝNOS A KVALITA LNU SETÉHO OLEJNÉHO (LINUM USITATISSIMUM L.) V RŮZNÝCH PĚSTITELSKÝCH PODMÍNKÁCH

Tomáš Středa, Marie Bjelková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2007, 55(1), 153-164 | DOI: 10.11118/actaun200755010153

The aim of this study was on the basis of the field experiment in two different agroclimatic localities, two planting options (low and high input) and during three years find out the seed yield, seed oil content and composition of fatty acid in linseed oil (Linum usitatissimum L.), variety Lola (LinolaTM). By the help of standard laboratory analyses for paint parameter evaluation judge suitability of using the oil for painting industry. Linseed yield varied from 0.29 t.ha-1 to 2.35 t.ha-1. Statistical significant differences (P = 0.01) were found out for localities, years and planting options. Average seed oil content varied from 36.6% to 44.0%. Influence of locality was not significant, influence of year and planting option to seed oil content was highly significant (P = 0.01). Content of linoleic acid in oil was influenced mainly by locality and planting option and varied from 75.86% to 76.78%. Laboratory painting-technological evaluation of oils and alkyd resin experimental sample made for suitability of using low linolenic oil of linseed, variety Lola for production of non-yellowing alkyds and enamels.

Vybrané charakteristiky nákupného správania slovenských spotrebiteľov

Ľudmila Nagyová, Jana Stávková, Zuzana Tonkovičová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(6), 69-76 | DOI: 10.11118/actaun200856060069

Objective of the paper is to point out selected patterns of Slovak consumers based on analysis of buying behaviour. Results of presented survey of consumer buying patterns and preferences have pointed out key characteristics of buying behaviour of Slovak consumers. We're able to confirm that new business companies as hypermarket and supermarket became main place for food shopping. Totally 72% of respondents indicated them as the type of store where they spend largest share of food expenses. The self-service shop, traditional business units, is still the shopping place for 14% of respondents. The most important factors influencing selection of the type of store are closeness and location of the store, assortment and product quality, store personnel and price level. More than half of the respondents consider opening times the key service for choosing the place for shopping. 49.6% of respondents is using car to do shopping, 35.5% of respondents walk. 32.5% of respondents is using advertising leaflets to plan what to buy. 14.6% of respondents answered that even though receiving leaflets, they don't read them. 31.3% of respondents are holders of loyalty cards. Most visited retail chain is Tesco.
Currently building of large-scale business formats slowed down and retail chains try to get closer towards customer not only by reducing floor space but above all by locating the stores in the centre of cities with lower population.

SROVNÁNÍ VYBRANÝCH METOD DIGITÁLNÍ KLASIFIKACE DŘEVINNÉ SKLADBY Z LETECKÝCH SNÍMKŮ

Martin Gabzdyl

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(5), 279-292 | DOI: 10.11118/actaun200856050279

This article describes a comparison of various programs for the automatic supervised classification used for identification of forest tree species representation from the aerial photographs. These programs were represented by American software Erdas Imagine 8.4, Czech products LuciaG 4.0 and TopoL DMT 6.014. The study displays a minor production forest area with proportion of four most frequently occurring tree species - spruce, larch, oak and ash in the research area of the forest region around Bystřice pod Hostýnem, the Czech Republic. For the reason of lower quality of spectrozonal photographs it was necessary to use some corrections; such as highlighting pen techniques, namely Kernel Processor Low-Frequency and High-Frequency filters, belonging to space operations. Photographs, modified in this way, served for a construction of individual training sets, which were consequently used within individual classification methods of directed classification in each comparative software. Self-classification took place at the level of a particular tree species. Classification accuracy was determined by comparison of results and reference data from the terrain research.
The outcome is, that the best classification for oak and ash was in combination with TopoL program, classification according to gravity centre and combination of solation + insolation signature of the treetop parts with an aggressive shade.
On the contrary, for spruce and larch was the best classification in combination with software Erdas Imagine, classification roles of intervals mahalanobis with combination of solation signature of the treetop parts, along these tree edges with an aggressive shade.

Roční cyklus zoobentosu Lednických rybníků

Roman Heimlich, Ivo Sukop

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 285-292 | DOI: 10.11118/actaun200856020285

The ponds of Lednice are situated in the area "Lednicko-valtický areál", which is included in the World Heritage List of UNESCO.
The aim of this essay was monitoring of seasonal dynamic zoobenthos development in the ponds Lednické rybníky over the years 2006-2007 and performance of qualitative and quantitative analysis of taken samples. The research was realized on ponds Nesyt, Hlohovecký, Prostřední, Mlýnský and Zámecký. Samples of macrozoobenthos were taken in monthly intervals. Qualitative studies of samples have shown 112 taxa of bentic macroinvertebrates in the localities mentioned above, 17 taxa were determined for the first time. Total number of benthic macroinvertebrates taxa known in the locality Lednické rybníky rose to 316 taxa. The values of macrozoobenthos density and biomass ranged between 22-15 667 ind.m-2 and 0.05-40.2 g.m-2, respectively.
With respect to the fact that only few researches with a focus on quality of macrozoobenthos in ponds of Lednice were realized, this research could bring supplementary information about the situation of benthic macroinvertebrates in the studied localities in new conditions of fish farming.

Změny fyzikálních a chemických parametrů hypertrofního rybníka po aplikaci prasečí kejdy

Radovan Kopp, Jan Mareš, Andrea Ziková, Tomáš Vítek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 95-100 | DOI: 10.11118/actaun200856020095

During the years 2001 and 2002 we conducted hydrochemical monitoring of intensively managed pond to evaluate the impact of high pig slurry doses on eutrophication. Pig slurry application was carried out in colder period of the year (February-April) via tube system with sludge pump from nearby piggery.
Our results showed that pig slurry application do not permanently affect the water quality of Jarohněvický pond. When the correct application is made slurry is effectively utilized by biomass for the growth, which prevents surface and underground waters to be polluted as in the case of incorrect application on agricultural land.
Critical point of this technology in terms of water management is the way of pig slurry application and the exact dose. Even extremely high slurry doses (16.1 kg.m-2 in 2001 and 15.6 kg.m-2 in 2002) used in Jarohněvický pond did not negatively affected pond ecosystem. Only higher amount of organisms that increased natural fish production was recorded. It is necessary to implement this ameliorative intervention in colder period of the year considering higher hazard of variations in decisive hydrochemical parameters at higher water temperature.

ZMĚNA STRATEGIE VZTAHŮ UVNITŘ ODVĚTVÍ CESTOVNÍHO RUCHU

Ida Vajčnerová, Kateřina Ryglová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(3), 223-230 | DOI: 10.11118/actaun200856030223

The paper deals with the current situation on the tourism market in the Czech Republic that focuses mainly on the area of the relationships among the mediators of services. It specifies key problems in the legislation area influencing the protection of a consumer - a travel agency's client, and proposes a suggestion for a possible solution by creating a strategic partnership among travel agencies. The theory of a coordinated change in a company is methodologically used in the paper, and it is applied on the change of relationships inside the whole branch. The specific plan for coordinated change of relationships among the mediators of tourism services, as well as the creation of a model for a strategical alliance of travel agencies in order to increase consumers' protection and transparency of tourism market are also parts of the paper.
The crucial goal of the strategic change is gaining competitive advantages for partner subjects in the form of the offer of a differentiated product that will be supplemented with guarantee and information services. The membership in strategic partnership is a form of utilizing signalling behaviour which subjects on the market identify themselves with.
A strategic alliance represents a possible form of strategic partnership for coordinated change within the branch; a medium intensity of binding interconnection between individual subjects is typical for it. The label of such strategic alliance will serve as a guarantee of quality as well as extended services for consumers.

KOMPARACE VYBRANÝCH METOD PREDIKCE V OBLASTI EXPORTU A IMPORTU VÍNA

Radka Šperková, Jiří Duda

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(6), 157-166 | DOI: 10.11118/actaun200856060157

For prediction of future events, there exist a number of methods usable in managerial practice. Decision on which of them should be used in a particular situation depends not only on the amount and quality of input information, but also on a subjective managerial judgement. Paper performs a practical application and consequent comparison of results of two selected methods, which are statistical method and deductive method. Both methods were used for predicting wine exports and imports in (from) the Czech Republic. Prediction was done in 2003 and it related to the economic years 2003/2004, 2004/2005, 2005/2006, and 2006/2007, within which it was compared with the real values of the given indicators.
Within the deductive methods there were characterized the most important factors of external environment including the most important influence according to authors' opinion, which was the integration of the Czech Republic into the EU from 1st May, 2004. On the contrary, the statistical method of time-series analysis did not regard the integration, which is comes out of its principle. Statistics only calculates based on data from the past, and cannot incorporate the influence of irregular future conditions, just as the EU integration. Because of this the prediction based on deductive method was more optimistic and more precise in terms of its difference from real development in the given field.

Předběžné výsledky hodnocení rezistence podnoží pro révu vinnou k chloróze vyvolané vápníkem

Pavel Pavloušek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 299-302 | DOI: 10.11118/actaun200856020299

Resistance to lime-induced chlorosis is very important characteristic of grapevine rootstocks. Lime-induced chlorosis influence yield and quality of grapes. Evaluation of chlorosis resistance is very important for grape growing and breeding. The aim of this work is provide results of evaluation grapevine rootstocks to chlorosis. High resistance was show in Fercal. From the viewpoint of the resistance to chlorosis, the rootstocks registered in the State Variety Book of the Czech Republic can be ranked from the most resistant to the most sensitive as follows: Craciunel 2 - SO 4 - Kober 125 AA - Kober 5 BB - Teleki 5 C - Amos - LE-K-1.

OPTIMALIZACE PROCESU MRAŽENÍ VEPŘOVÉHO A HOVĚZÍHO MASA PRO VÝROBU FERMENTOVANÉHO "MÉTSKÉHO SALÁMU"

Hana Šulcerová, Radka Burdychová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(5), 211-220 | DOI: 10.11118/actaun200856050211

In this work, the level of microbial contamination of pork and beef meat for processing of heat-untreated fermented meat products was monitored. In company providing samples for this work, meat was kept frozen for period of 6 days (144 hours), which was not effective due to the financialy expensive frozing storages. The relationship between meat freezing period and number of selected technological as well as hygienical significant microorganisms was monitored, with the aim to optimize frozing period to keep microbial quality of meat and meat products. Microbiological analysis of meat samples was performed before freezing of meat and after 48, 72, 96, 120 and 144 hours of freezing. Furthermore, the analysis was carried out after 7 and 21 days of meat products storing period. Total number of microorganisms, total number of psychrotrophic microorganisms, yeast and fungi, coliforms, bacteria of the genus Enterococcus and bacteria of the family Enterobacteriaceae were detected. As from results, sufficient period for meat freezing was 72 hours. After this period total count of microorganisms as well as bacteria of the family Enterobacteriaceae, coliforms bacteria and bacteria of the genus Enterococcus reached the level, which at next freezing was not influenced. Number of psychrotrophic microorganisms were growing by next prolonging of freezing period, above 72 hours. Numbers of yeast and moulds became almost unchanged during the whole freezing period.

ANALÝZA OPTIMÁLNÍ INFORMAČNÍ PODPORY PRODEJNÍCH KANÁLŮ PŘI UVÁDĚNÍ NOVÝCH PRODUKTŮ NA TRH

Michal Vodák

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(3), 231-236 | DOI: 10.11118/actaun200856030231

The aim of this article is to analyse efficiency of sales channels in the time when new products are being launched. As the most suitable method for this analysis was chosen the method of mystery shopping because it can properly compare and measure the most aspects of sales process quality. The results of mystery shopping focused on sales approach of sales assistants showed significant differences in performance of external and internal sales channels in analysed time periods. At the moment there is no significant difference in the support of external and internal sales channels during product launches because it is perceived that both of these sales channels should be highly motivated to sell new products and therefore there is no need in this busy periods to split the effort into two individually designed sales supports. As depicted in the article it would be benefitial to change this approach since the potential of external sales channels is not fully revealed and used as much as it could be. Seeing the fact that all companies generate enormous pressure to launch new products with the highest excellency implementing diverse support should be one of possibilities how to achieve it. Description and explanation of differences in mystery shopping results in external and internal sales channels are used as a base for formulating an approach how sales and marketing efficiency during product launches in external sales channels could be increased.

Polymorfismus prolaminových bílkovin u vybraných odrůd ozimé pšenice registrovaných v České republice

Tomáš Vyhnánek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(5), 221-226 | DOI: 10.11118/actaun200856050221

In 2006 and 2007 samples of harvested grain were used to verify the possibility of distinguishing 12 winter wheat genotypes and of detecting impurities on the basis of polymorphism of prolamin kernel proteins. Uniform electrophoretic patterns were detected in genotypes of Athlet, Buteo, Dromos, Ebi, Etela, Florett, Livia, Simila wheat in 2006 and 2007. On the basis of the identity index two sister prolamin lines with different share, depending on the year of harvest, were discovered in 3 wheat genotypes (Astella, Brea and Hana). The proportion of sister gliadin lines in the Astella and Brea genotypes was the same in both years. There was only minor difference (± 2.5%) in the share of the sister lines in the Hana variety between the respective years, and could be influenced by environmental factors. A foreign genotype was detected in the Mona variety. The identity index of the impurity to the Mona variety (ii = 0.30) was considerably low. In the impurity the gliadin block Gld 1B3 was not detected, which is the genetic marker of rye translocation T1BL.1RS (the Sr31 gene of resistance to black rust, higher cold resistance and the marker of poor baking quality - presence of secalin genes). The results proved the potential practical application of the electrophoretic detection of polymorphism of prolamin proteins as markers of impurities of foreign genotypes in a seed sample.

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