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The paper is focused on the description of average level, variability and developmental trends the export prices of selected agricultural and food commodities in the Czech Republic with differentiation according to particular countries within the defined reference period 1993-2002. Thre is also presented the short-time point and interval extrapolation prediction of studied events. Methods of regression and correlation analysis and developmental trends were applied for the mathematical-statistical analysis.

The paper demonstrates importance of temperature influence on dehydration processes using drying model equations in introductory part and further presents results of water sorption tests of parsley leaves. Measurements were carried out under laboratory conditions in the temperature range of 10-40 °C and relative air humidity from 30 to 100%. Moisture sorption isotherms were tested using a gravimetric dynamic method with continuous recording of changes in sample weight. Five mathematical models available in the literature (Chung-Pfost, GAB, Halsey, Henderson, and Oswin) were statistical evaluated. The Henderson equation was found to be a good model both for moisture adsorption and desorption. Part of the sorption isotherms measured in parsley leaves show the type II BET classification shape. An increase in temperature causes an increase in water activity for the same moisture content and, if water activity is kept constant, an increase in temperature causes a decrease in the amount of absorbed water.

In small-plot experiments established in 2001-2004 we studied the effect of the chemical composition of the plant dry matter of spring barley, varieties Kompakt and Jersey, on grain yields. A relatively strong correlation was confirmed between the chemical composition of the plant dry matter and yields. The correlation was most intensive in the case of nitrogen (r = 0.536), phosphorus (r = 0.503), magnesium (r = 0.464) and sulphur (r = 0.431) at the beginning of shooting (DC 30); in the case of potassium (r = 0.557) at the beginning of tillering (DC 23) and calcium (r = 0.530) during ear formation (DC 55). A relatively strong correlation remained from the beginning of tillering to the beginning of ear formation and later decreased. The weather conditions of the year and variety significantly affected grain yields and also the previous crop was important. Grain yields of the variety Kompakt were statistically significantly lower than of the variety Jersey (6.02 t.ha^-1 and 6.45 t.ha^-1, respectively). The yields of barley grown after sugar-beet were the highest (6.30-6.79 t.ha^-1); the grain yields of barley after maize decreased by 9.1-9.7 %. Higher grain yields of the Jersey variety resulted in levels of N-substances (11.35 %) lower than in the Kompakt variety (11.35 % and 11.60 %, resp.). No correlation was discovered between the nitrogen level in the plant dry matter during vegetation and the content of N-substances in barley grain.

Today's global environment requires every sustained effort to outmatch both competition and innovation. Top organizations of all types - governments, non-profit organizations, companies, institutions and universities try to solve the following difficult questions: How to improve standard of customer service and raise the productivity without concurrent growth of expense accounts. How to control risks and observe the rules without losses of entrepreneurial ( competition) benefits? How to stimulate all the employees to participate in innovation, development of new products and services, finding new markets and more efficient satisfaction of customers?
The paper deals with possibilities of procedural simulation both for the improvement and innovation of present processes, and for the formation of completely new trends of the Institute of Lifelong Education of Mendel University of Agriculture and Forestry in Brno. An important condition for the design of procedural simulation is expert activity provided by highly professional experts or consultants in the field of education as well as in business matters.

The article is focused on the quantitative analysis of the price flexibility of the world market for the cocoa beans. The ICCO databases from 1960/1961 to 2005/2006 crop years were used for this analysis. In the investigated time period, the analysis of the price flexibility was based on the autoregressive form of the price model with the log-linear construction: lnp_t = 2.6824 - 0.4041 × lnstg_t + 0.8301 × lnp_t-1 + u_t. The values of the parameters of the autoregressive price model were estimated using OLS. The developed model was statistically significant in all evaluated respects (F-test, T-tests and Durbin's h-test). Within the analysis of the world market for the cocoa beans, the current, dynamic, long-term and long-equilibrium coefficients of price flexibility were evaluated. According to applied log-linear construction of the autoregressive price model, the level of the current price flexibility of the world market for the cocoa beans was -0.4041, the dynamic price flexibility of the first order achieved the value of -0.3354 and the long-equilibrium price flexibility of the world market for the cocoa beans takes the value of -2.3784.

Companies classified as small and medium-sized enterprises (SMEs) account for a large proportion of Europe's economic and professional activity. In practice, 99 % of business in the European Union are SMEs, and they provide two-thirds of all private sector jobs. So small firms are, in fact, the real giants of the European economy. Micro-business dominate employment in countries such as Italy 47 % and Poland 41 %, whilst the share of large enterprises in total employment in the United Kingdom is just 46 %.
During the recent period of time there have been many researchers from the FBE MUAF in Brno, who focused on the analysis of the small and medium-sized enterprise, e.g. Nerudová (2006); Nerudová and Bohušová (2006); Kubíčková and Presová (2006); Zrůst and Pyšný (2008); Živělová and Zichová (2002).

Harvester technologies of timber logging currently represent the high spot of technologies used in forestry for timber harvesting and forwarding. A typical feature of the "harvester-forwarder" combination is production rate, which is many times higher than in the commonly used technology of "power chainsaw-tractor" (Lukáč, T., 2005). Other major features prevailing in harvester technologies include an appreciably high level of work hygiene and a significant reduction of environmental burden, which is certainly beneficial for the environment.
Harvester technologies of timber logging are currently an integral part of sustainable forest management.
This paper focuses on finding options for the application of harvester technologies in selected entities based on the analysis of selected factors that can be greatly affected by the technologies.

Changes in amino acid profile of alfalfa silage preserved with chemical or biological additives were studied in fresh and wilted silage. The chemical additive was formic acid and the biological additive consisted of Lactobacillus rhamnosus, L. plantarum, L. brevis, L. buchneri and Pediococcus pentosaceus. Second cut alfalfa (Medicago sativa L.) was harvested at the bloom stage, ensiled in mini silos (15 dm³) and fermented at 20-23 °C for 12 weeks. The dry matter of the fresh silage was 228 g.kg^-1 and 281.6 g.kg^-1 for the wilted before ensiling. The amino acid content was estimated by using an automatic amino acid analyzer AAA (INGOS Prague). The results of the experiments indicated that amino acid breakdown was inhibited by increased dry matter and the use of chemical and biological additive. Additionally, the content of amino acids was found to change in relation to the degree of wilting and formic acid treatment yielded the lowest amino acid breakdown. The amino acid breakdown was also reduced by biological preservative especially in the silage with a higher level of dry matter content.

This study is intended to determine the physicochemical characteristics of Slovakian honeys, and compare them with specifications described in the Codex Alimentarius Standard, the European Honey directive, the Slovak Codex Alimentarius and Slovak standard No. 1/2006. In addition, we tried to find out correlations between individual constituents of honeys. Physicochemical characterization was carried out following the harmonized methods dictated by the International Honey Commission IHC. Honey samples (n=50) were collected from three honey types (blossom, blends, honeydew), and from the three main Slovakian geographical regions (named 'east', 'middle' and 'west'). The physicochemical evaluation included moisture, reduced sugars, proline, hydroxymethylfurfural (HMF), conductivity, diastase and invertase activity, pH and water activity, following the techniques proposed by the European Honey Commission (EHC). The moisture content in the honey varied from 15.26 to 17.65 %, HMF levels ranged from 21.83 to 63.00 mg.kg^-1, the diastase activity varied from 21.01 DN to 36.67, invertase activity varied from 121.73 to 164.11 U.kg^-1, the proline content varied from 426.56 to 531.79 mg.kg^-1, the fructose content values were found from 36.33 to 40.20 g.100g^-1, the glucose content values ranged from 27.67 to 31.00 g.100g^-1, the values of saccharose content were from 0.15 to 0.37 g.100g^-1, the conductivity varied from 29.48 to 97.24 mS.cm^-1, the pH value varied from 4.06 to 4.80 and the water activity content varied from 0.55 to 0.57. Significant differences (P ≤ 0.05) were found between HMF and fructose, glucose and saccharose and conductivity and pH, significant differences (P ≤ 0.01) between fructose and glucose and significant differences (P ≤ 0.001) were found between HMF and conductivity. Between blossom honey and honeydew honey were found statistical significant differences in HMF (P ≤ 0.05) and conductivity between honeydew honey and blossom honey (P ≤ 0.001). Among regions were determined statistical differences between HMF and invertase (P ≤ 0.05) and conductivity (P ≤ 0.01).

The paper deals with the necessity to establish a unified organizational structure of tourism in the Czech Republic. It analyses the present situation and by using the result of the case study "The analysis of tourism organization in the tourism region of Moravian Karst and its surroundings" it shows the low level of cooperation among individual subjects that are active in tourism, and also the absence of a covering organization of tourism (Destination management company-DMC) that would coordinate developing, promotional and conceptual activities of an area and would also cooperate with a regional organization of tourism. On the basis of the information mentioned above a model of organization tourism in the Czech Republic. Defining competencies and activities is a part of the model - for the national agency of CzechTourism as well as for DMC at individual levels of management, with the target to avoid duplicate activities and make the development of tourism in destinations more efficient. A paramount task for CzechTourism is to establish a stable organizational structure.

A graphical user interface (GUI) of any web-based object or classical structural enterprise business software constantly hasn't lost its user importance. It really stays as a one of very relevant manners for a client communication with any contemporary developed software units (programs, applications, modules and Software Complex Systems). In addition to this mission, every GUI is regarded as a one of three considerable basic software unit layers. GUI units can be inherently positioned inside software units or we can separate them and construct a special GUI system over GUI units. Naturally, we have to define a manner of communication between software units and GUI units. This approach enables, on a system platform, to investigate not only structure and functionality of GUI units, but also relations among them. We can use the system platform on three levels, a theoretical level, a level of GUI modeling and a level of GUI development. Especially the theoretical investigation of the GUI system can bring for analysts and developers-programmers a new knowledge about the GUI units' behavior and relations. It can equip them by very detailed information about formal tools concerning any GUI system functionality description and help them to improve a process of GUI system construction.

We analyzed the age structure of population in Czech regions, assessed the differences in the levels of the regions' population age, and based upon the quantification of assumed changes we assessed the pace of ageing up to 2050. The analysis does not include the population migration, and is based on the indicators "ratio of productive population" and "ageing index" based on the factor analysis of the indicators closely related to the age of population. By means of cluster analysis we arranged the regions according to both mentioned indicators into groups where we, to be able to compare the groups, used their standard values and mean growth coefficient. The pivotal result is the order of regions from the points of view of the level of population age in 2005 - 2050 and the pace of population ageing in the predicted period of time 2005 - 2050. For better illustration we made out graphs where the structure of regions according to the age of population and the process of ageing can be deduced.

The University Agriculture Enterprise (UAE) Žabčice is part of the Mendel University of Agriculture and Forestry (MUAF) in Brno and its basic mission is to provide targeted activities for the MUAF in Brno. The UAE Žabčice is unique and quite specific agricultural entity in the Czech Republic, which has been meeting its mission more than 80 years. This fact makes it necessary to cover all processes necessary for the firm to make them more effective, where appropriate, a radical change. The aim of the work is to create a key process "Crop Production in the UAE Žabčice of the MUAF in Brno using the software tool Enterprise Architect, with the assignment of documents to a particular activity. Creating a process model of crop production, presented in this work, indicating the links with other processes, with the allocation of existing documents, it may serve the UAE Žabčice management to implement effective changes, where appropriate, to the fundamental restructuring of internal processes.

Nowadays, we can see on market mainly fermented milk products with addition of probiotic microorganisms, especially strains of Lactobacillus and Bifidobacterium. We can meet also other types of probiotic products. It is recommended to consume at least 100 grams of fermented milk products with minimal concentration of 10⁶ of probiotics in one gram or mililitr of product daily for reaching positive effect on men's health. During fermentation of the carbohydrates, proteins and lipids are disunite and many of aromatic compounds ane compose. They give a typical sensory characteristic to fermented milk products. For quality and quantity level of probiotics, changes of pH value and sensory quality of five kinds of fermented milk product Yoghurt Drink with different flavour were analyzed during the whole expiration period (28 days). Obtained results were statistically evaluated via the analysis of variance and the method of multiple comparison according to Tukey test (P < 0,010) and (P < 0,001). During the minimal endurance time lactic acid bacteria and Bifidobacterium sp. were evaluated and changes of descriptors and pH value were detected. Number of LAB was up to 10⁷ CFU/ml in all samples during 28 days of analysis. Only at sample 2 the number of LAB was 10⁶ CFU/ml. Bifidobacterium sp. grew about degree. The number of LAB and Bifidobacterium sp. of yoghurt drink correspond with public notice number 77/2003 Sb, LAB 10⁷ nad Bifidobacterium sp. 10⁶ KTJ/ml. During 28 days of storage the pH value decreased. The biggest pH drop was recorded between 21. and 28. days of storage in all samples. The beginning pH value was 4.03-4.07 and the final value was between 3.80-3.95. The results of sensory evaluation processed by analysis of dispersion according to type were statistically conlusive in descriptors thickness, texture, intensity of smell, pleasantness of taste and general impression. The results of sensory evaluation processed by analysis of dispersion according to days of storage were statistically conlusive in descriptor pleasantness of smell.

Analysis of work environment contamination with carbon oxide by harvesting and wood processing with using of motomanually technology - one-man chainsaw is presented in this paper. This activity belongs to categories of heavy up to very heavy works according to power consumption. Due to psychophysiological load is considered as dynamic work, combined with neuropsychical load by decisions about assortments and safe motion during harvesting and manipulation process.
Risk of carbon monoxide (CO) intoxication is inflicted his strong affinity to haemoglobin (Hb). Carbon monoxide produce with haemoglobin karboxyhemoglobin (COHb), whereby disable transmission of oxygen in form oxyhaemoglogin (OHb) from lungs to tissues. Binding of oxide carbon on haemoglobin is approximately two-hundred times stronger as with oxygen.
The measures was made with use of multichannel detector of gas and exhalation Drager X-am 7000 (Germany). Data about contamination was recording in one second intervals, with precision on 1 ppm. By harvesting and too by wood processing were realized three independent observation. Data were processing with standard mathematical-statistic methods - sorting and ranking, regression analysis, test of average deuces and evaluation of frequency in classes.

The paper deals with the quality of tourism services. It mentions various ways of approaching quality management, such as the standards of quality, systems based on ISO standards and systems of complex quality management. It describes approaches applied in the Czech Republic and points out the difficulty keeping the quality in tourism. Tourism services are not offered individually, which is why it is necessary to assess the quality of a whole complex of services within the frame of a tourism product or a tourist destination. The level of tourists' satisfaction is not based on the quality of individual tourism services or a destination product but it arises from their overall impression which is formed from the hospitality of local inhabitants, the willingness of employees, the cleanness of the environment, security and so on. The presumption of maintaining the quality of a destination is a unified approach of all participants in tourism development that can be reached by various forms of cooperation. Creating a strategic alliance is one of such possibilities. The main objective of the article is to introduce the European system of Integrated Quality Management (IQM) and the tool for assessing the quality in a destination "Qualitest". The Integrated Quality Management is an approach based on the cooperation of all areas taking part in tourism development in a destination. The quality is assessed in a complex way with respect to tourism development impacts on local inhabitants and the environment. "Qualitest" is made of 16 indexes that are focused on the quality of a destination and the quality of a product. Each index is evaluated by three indicators that asses the quality of conditions (QPCI), the quality of management (QMI) and the quality of a destination performance (QPI). These indicators combine qualitative as well as quantitative values. The precondition for using "Qualitest" in our destinations is the existence of a functional tourism organization fulfilling the task of destination management, the results of the survey concerning the satisfaction of visitors and service suppliers in a destination and the cooperation with public sector for the purpose of obtaining data for QPI (police, municipal authorities, trade supervisory office). Such materials provide a methodical base for accomplishing "Qualitest" in a suitable destination.

The aim of this paper is an empirical analysis of mortgage volume in the Czech Republic and factors identification of the increasing trend of the mortgage volume in the period from 2001 to 2007. Firstly, analysis of quarterly time series of mortgage volume and average mortgage rate are performed. Consequently, causality between mortgage volume and average mortgage rate is analysed. The morgage rate is the most important factor for economic subjects decision of residential investment. Afterwards, it is analysed causality between mortgage volume and selected factors via multiple regression analysis. Based on this analysis, influencing factors for multiple regression analysis describing mortgage volume are selected. Our empirical analysis validate the causality between mortgage volume and mortgage rate, unemployment rate and price level of real estates. Part of this paper is also economic eduction of causality and estimation of expect progress of mortgage volume especially in connection with present economic and business recession.

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.

The group of psychrotrophic microorganisms belongs to the microorganisms representing a risk for human health as well as a risk of milk and milk products spoilage. Some genus are considered to be significant producers of proteolytic and lipolytic enzymes. In this work, we analysed raw milk samples (n = 109) originated from 26 different suppliers from the area of North and Middle Moravia. The screening was performed from March 2007 to February 2008. The total bacterial counts (TBC) ranged between 3.2 × 10³ to 8.3 × 10⁶ CFU/ml. The psychrotrophic bacterial counts (PBC) ranged between 1.0 × 10³ to 8.2 × 10⁶ CFU/ml. Total of 48.62 % and 48.62 % of samples exceeded the hygienic limit in raw milk for TBC and PBC, respectively. The correlation between TBC and PBC was highly significant (r = 0.87).
Significantly higher (P < 0.05) numbers of psychrotrophic microorganisms were detected in summer months. The identification of isolates was carried out and all strains were sreened for ability to produce proteolytic and lipolytic enzymes. The most commonly identified genus in raw milk was of the genus Pseudomonas. The ability to produce proteases or lipases was found at 76 % identified bacterial strains.

The objective of this work was to induce in vitro shoot regeneration as influenced by plant growth regulators and ascertain an effective method of polyploidy induction using colchicine and oryzalin in two diploid cultivars 'Gizela' and 'Black Velvet Scarlet F₁' of Pelargonium × hortorum L. H. Bailey. In both cultivars, benzyladenine (BA) significantly improved shoot regeneration compared to zeatin. The infiltration and the dip methods of explant treatment were used for polyploidy induction. Regenerants were analyzed using the flow cytometry (FCM). In 'Gizela' and 'Black Velvet Scarlet F₁', 10 tetraploids on the level of 2n = 4x were found by the infiltration method. The tetraploidy was determined by the dip method in 4 shoots of 'Gizela' and 11 tetraploids were detected in 'Black Velvet Scarlet F₁'.

Paper presents new original application WOOD3D in form of program code assembling. The work extends the previous article "Part I - Theoretical approach" in detail description of implemented C++ classes of utilized projects Visualization Toolkit (VTK), Insight Toolkit (ITK) and MIMX. Code is written in CMake style and it is available as multiplatform application. Currently GNU Linux (32/64b) and MS Windows (32/64b) platforms were released. Article discusses various filter classes for image filtering. Mainly Otsu and Binary threshold filters are classified for anatomy wood samples thresholding. Registration of images series is emphasized for difference of colour spaces compensation is included. Resulted work flow of image analysis is new methodological approach for images processing through the composition, visualization, filtering, registration and finite element mesh formation. Application generates script in ANSYS parametric design language (APDL) which is fully compatible with ANSYS finite element solver and designer environment. The script includes the whole definition of unstructured finite element mesh formed by individual elements and nodes. Due to simple notation, the same script can be used for generation of geometrical entities in element positions. Such formed volumetric entities are prepared for further geometry approximation (e.g. by boolean or more advanced methods). Hexahedral and tetrahedral types of mesh elements are formed on user request with specified mesh options. Hexahedral meshes are formed both with uniform element size and with anisotropic character. Modified octree method for hexahedral mesh with anisotropic character was declared in application. Multicore CPUs in the application are supported for fast image analysis realization. Visualization of image series and consequent 3D image are realized in VTK format sufficiently known and public format, visualized in GPL application Paraview. Future work based on mesh improvement through mesh error statistic, image acquisition and thresholding improvement by more sophisticated filters together with code optimization for fast image analysis is discussed. Also fractal characteristics classification on microscopic scale level is taken into account for further work.

The aim of this study was to explore the depression effects of level of inbreeding on kg of fat and protein presented in the form of breeding values. The data included cows calved in the years 1990-2006 at farms in the Czech Republic. Inbred cows were grouped according to F_x coefficients (F_x = 1.25%, F_x = 2.0-3.125%, F_x = 4.0-12.5% and F_x = total). The breeding values for inbred cows were compared with their outbred equals (2689 equals in sum) - half-sisters, sharing the same sire, dam reaching the same breeding value (± 5%) and their first calving occurring at the same farm, at the same time (±2 month). The PROC GLM of SAS^® with fixed effects (age at first calving, year of calving, number of lactations, first calving interval and relative breeding value of sire and dam were applied to all data).
In the groups with F_x coefficients (F_x= 1.25 %, F_x = 2.0-3.125 %, F_x = 4.0-12.5 % and F_x = total) we found a decrease in the breeding values of kg fat in inbred cows of -1.48; 0.17; -8.26 and -0.51 kg. In the case of protein content the depressed production in inbred cows was: -0.58; -0.48; -3.21 and -0.94 kg. These differences were significant (p ≤ 0.01) in the group with the highest F_x value (F_x = 4.0-12.5%). The inbred animals showed higher variability within the range of observed corrected breeding values (Y_ijklmno) for kg of fat and protein.
The results also show that increasing the level of parents (as RBV) caused a very significant increase in production both in inbred and outbred daughters but greater increase in fat and protein was evident in the non-inbred cows.

Czech Republic has experienced significant changes on the market with food in last two decades. The paper presents summary of results of conducted analyses focusing on changes in levels of most important food categories, changes in consumer preferences, and suggests what trends we can expect in the near future. The analyses were based on date from Czech Statistical Office Yearbooks, EUROSTAT, INCOMA and GfK, and data from primary researches conducted on sample of total 2522 households in the Czech Republic through questionnaire researches in 2005, 2006 and 2007. The results show that in the Czech Republic, the ratio of expenditures for food out of total consumer expenditures is slowly decreasing and advances to (still lower) level typical for traditional EU countries. We have experienced growth of demand for products with higher added value; customers put more emphasis on perceived quality, longer durability and special product characteristics. Czech consumers increase their consumption of vegetables and fruit, bottled beverages, wine and alcoholic beverages, cheese, they decreased their consumption of meat (in total), milk and potatoes, stagnation was typical for bakery products, sugar and fats and oils. Development in all social classes was very similar. For the future, we can expect growing interest for food products in smaller packages and targeted at specific needs, growing demand for food products with higher added value, consumption of food formerly unusual for the Czech, more frequent out-of-home eating, and growing differences between individual segments of social groups, mainly due to uneven income distribution.

Mission of the health care institutions is very different from the other organizations - healing illnesses and restore health of patients. The basic aim of this paper is to identify and describe selected factors of external environment based on the analysis and extrapolation of public economic and demographical data from the database of Czech statistical office, Institute for health information and statistic in the Czech Republic, OECD and database of European Commission which will have very significant influence for function of Czech health care system up to the 2050. People in the Czech Republic will be one of the oldest in the second part of the 21^st century. This fact will be connected with higher expenses for health care with the consequences of numerous groups of older people. With the middle length of life is 74 years old by man and 80 years old by woman. There were 20 % of people over 60 years old in Czech population in 2005 and we can expect 37 % of these people in 2050. Future estimation assume grow of healthcare expenses from the present 6.0 % HDP in the 2007 to 7.6 % in the 2037 and 8.4 % in the 2060. The ratio of private expenses in the Czech healthcare system isn't big; it oscillates around 10 % of total expenses. The ratio of public expenses is still running down in the long time and doesn't reach the level of the other neighbouring states in the EU. Ageing of the population is connected with the total healthcare expenses per person growth as well; the expenses are very different according to the age of a person and are growing up with the age. The most significant growth can be seen from the age of fifty years. It was higher by 3.8 years of life for women and by 5.17 years for men if we compare years 1992 and 2007. The birth rate isn't sufficient for reproduction of population; Czech population will decrease. There will be lower total number of economically active people according to the assumptions of European commission. Therefore it will be very necessary to reform the heath care system which is based on the obligatory health insurance. The solution can be a higher participation of private sector and subsequent political direct and indirect measures, as well.

The application of methods based on measurements of photosynthesis efficiency is now more and more popular and used not only for the evaluation of the efficiency of herbicides but also for the estimation of their phytotoxicity to the cultivated crop. These methods enable to determine also differences in the sensitivity of cultivars and/or hybrids to individual herbicides. The advantage of these methods consists above all in the speed and accuracy of measuring.
In a field experiment, the sensitivity of several selected grain maize hybrids (EDENSTAR, NK AROBASE, NK LUGAN, LG 33.30 and NK THERMO) to the herbicide CALLISTO 480 SC + ATPLUS 463 was tested for a period of three years. The sensitivity to a registered dose of 0.25 l.ha^-1 + 0.5 % was measured by means of the apparatus PS1 meter, which could measure the reflected radiation. Measurements of sensitivity of hybrids were performed on the 2^nd, 3^rd, 4^th, 5^th and 8^th day after the application of the tested herbicide, i.e. in the growing stage of the 3^rd-5^th leaf. Plant material was harvested using a small-plot combine harvester SAMPO 2010. Samples were weighed and converted to the yield with 15 % of moisture in grain DM.
The obtained three-year results did not demonstrate differences in sensitivity of tested hybrids to the registered dose of the herbicide CALLISTO 480 SC + ATPLUS 463 (i.e. 0.25 l.ha^-1 + 0,5 %). Recorded results indicated that for the majority of tested hybrids the most critical were the 4^th and the 5^th day after the application; on these days the average PS1 values were the highest at all. In years 2005 and 2007, none of the tested hybrids exceeded the limit value 15 (which indicated a certain decrease in the efficiency of photosynthesis). Although in 2006 three of tested hybrids showed a certain decrease in photosynthetic activity (i.e. EDENSTAR and NK AROBASE on the 3^rd day and NK LUGAN on the 2^nd-4^th day after the application), no visual symptoms of damage of plants were found out. It could be concluded that the herbicide CALLISTO 480 SC + ATPLUS 463 (when applied in the registered dose of 0.25 l.ha^-1 + 0.5 %) did not damage hybrids under study and did not show any statistically significant effect on the grain yield. This means that the manufacturer's statement that this herbicide, if applied in the registered dose of 0.25 l.ha^-1 + 0.5 %, is very tolerant to grain maize seedlings in the growth stage of 3-5 leafs, was correct. The most suitable date of measurements of differences in sensitivity to and/or potential phytotoxicity of the preparation CALLISTO 480 SC + ATPLUS 463 seemed to be the fourth day after the application because the measured average PS1 values were the highest in all hybrids under study. When evaluating the pooled three-year yields of grain (converted to 15% of moisture content) by means of variance analysis, a statistically significant effect of the year and the hybrid on the grain yield was found out. On the other hand, however, there was no statistically significant difference in the grain yield between control and the variant treated with the registered dose of the herbicide CALLISTO 480 SC + ATPLUS 463

Presented work evaluates synergism of atmosphere corrosive action and material defects. These defects appear not only during particular technological process of connecting of structural material but also during cooling and up to hundreds hours afterwards. The multiplication of degradation impact of defects in joint welds and heat-affected zone caused by activity of atmosphere acidic medium is simulated in condensation chambers. The verification is realized by use of mechanical uniaxial tension loading and following fractographic and metalgraphic analysis.
The metal plasticity is sufficient factor to eliminate thermal stress in tough metal (11 373). This is reflected in more homogenous weld root area (with no cracks). The corrosion influence of environment is in case of such specimens limited to very slight decrease of weld maximum load. The ultimate strength value decreases approximately for 20MPa only in contrast to dramatic strength decrease in case of 11 503 material. Before metalographic examination was observed surprisingly great value of load capacity of spot welds. These welds were not ruptured nor in a single case even during maximum length of corrosion exploitation. The consequent material analysis discovered high qualitative material and strength properties of this kind of joint.

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.

Water activity of multicomponent food mixture was analysed and measured. Samples of dry fermented sausages with two different starter cultures (Pediococcus pentosaceus + Staphylococcus carnosus and Staphylococcus carnosus + Staphylococcus xylosus + Lactobacillus farciminis) were tested during ripening (21 days) and storing (91 days). The basic raw materials were the same for all samples: lean beef meat, lean pork and pork fat in equal parts, nitrite salt mixture (2.5 %), and sugars (1.0 %). The method used for water activity tests was indirect manometric in a static environment. Moisture content of samples was measured using halogen dryer. The course of water activity and moisture content of sausages was variable during ripening and steady during storage. Diagrams showed gradual decrease of both parameters. Mathematical models of water activity and moisture content for storage of dry fermented sausages were developed and statistically verified. The influence of starter cultures was not significant.

Three methods of red clover (Trifolium pratense L.) breeding for forage yield in two harvest years on locations in Bredelokke (Denmark), Hladké Životice (Czech Republic) and Les Alleuds (France) were compared.
Three types of 46 candivars¹, developed by A₎ recurrent selection in subsequent generations (37 candivars, divided into early and late group), B₎ polycross progenies (4 candivars) and C₎ geno-phenotypic selection (5 candivars) were compared. The trials were sown in 2005 and cut three times in 2006 and 2007; their evaluation is based primarily on total yield of dry matter. The candivars developed by polycross and geno-phenotypic selections gave significantly higher yields than candivars from the recurrent selection. However, the candivars developed by the methods B and C did not differ significantly. The candivars developed by these progressive methods were suitable for higher yielding and drier environment in Hladké Životice (where was the highest yield level even if averaged annual precipitation were lower by 73 and 113 mm in comparison to other locations, respectively); here was average yield higher by 19 and 13% for B and C in comparison to A method. Highly significant interaction of the candivars with locations was found. It can be concluded that varieties specifically aimed to different locations by the methods B and C should be bred; also the parental entries should be selected there.

The article proposes a new method suitable for advanced analysis of web portal visits. This is part of retrieving information and knowledge from web usage data (web usage mining). Such information is necessary in order to gain better insight into visitor's needs and generally consumer behaviour. By leveraging this information a company can optimize the organization of its internet presentations and offer a better end-user experience. The proposed approach is using Grammatical evolution which is computational method based on genetic algorithms. Grammatical evolution is using a context-free grammar in order to generate the solution in arbitrary reusable form. This allows us to describe visitors' behaviour in different manners depending on desired further processing. In this article we use description with a procedural programming language. Web server access log files are used as source data.
The extraction of behaviour patterns can currently be solved using statistical analysis - specifically sequential analysis based methods. Our objective is to develop an alternative algorithm.
The article further describes the basic algorithms of two-level grammatical evolution; this involves basic Grammatical Evolution and Differential Evolution, which forms the second phase of the computation. Grammatical evolution is used to generate the basic structure of the solution - in form of a part of application code. Differential evolution is used to find optimal parameters for this solution - the specific pages visited by a random visitor. The grammar used to conduct experiments is described along with explanations of the links to the actual implementation of the algorithm. Furthermore the fitness function is described and reasons which yield to its' current shape. Finally the process of analyzing and filtering the raw input data is described as it is vital part in obtaining reasonable results.