Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017 (vol. 65), issue 5
Effect of Clearance on Mechanical Damage of Processed Rice
Salih K. Alwan Alsharifi, Akbar Arabhosseini, Mohammad H. Kianmehr, Ali M. Kermani
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1469-1476 | DOI: 10.11118/actaun201765051469 
The effect of rubber rolls in husking machine (Yanmar type) on rice cultivars of Tarm Hashemi (TH) and Daillman Mazandarani (DM) were tested during husking at three clearances of 0.4, 0.6 and 0.8 mm between cylinders. The experiments were carried out in a factorial experiment under complete randomized design with three replications. The results showed that the TH cultivar was significantly better than the DM in all studied conditions. The results showed broken rice of 6.239 % and 6.729 %, cracked grain percentage of 3.787 % and 4.671 %, brown rice (husked rice) of 82.049 % and 80.113 %, husking efficiency of 84.719 % and 83.152 % and head rice yield...
Changes in Soil Aggregate Stability Induced by Mineral Nitrogen Fertilizer Application
Martin Brtnický, Jakub Elbl, Helena Dvořáčková, Jindřich Kynický, Jan Hladký
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1477-1482 | DOI: 10.11118/actaun201765051477
The stability of soil aggregates is one of the most important characteristics of the soil affecting the overall soil quality and its health. In locality Březová nad Svitavou, experiment to reveal the effect of nitrogen dose on the stability of soil aggregates of Rendzina soil was carried out. The aim was to detect changes in soil aggregate stability after 4 and 5 years from the beginning of the experiment. There were tested 7 variants, prepared in triplicate. The results revealed that the stability of soil aggregates decreases with increasing amounts of applied N. Effect of N application was not statistically significant in the fourth but in the fifth...
Available Nitrogen in the Surface Mineral Layer of Natural Meadows
Željko S. Dželetović, Nevena Lj. Mihailović
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1483-1492 | DOI: 10.11118/actaun201765051483
Based on a greenhouse experiment, we evaluated nitrogen availability in the surface mineral layer of soil under various natural meadow stands by analyzing the following soil characteristics: total organic C, total N, initial content of easily available N inorganic forms, mineralized N content obtained by aerobic and anaerobic incubations and A-value. The experiment was performed on a test plant and through the application of urea enriched with 5.4 % 15N. The investigated soils under natural meadows are characterized with comparatively high mineralization intensity and high N availability indices. Contents of mineral N produced by aerobic...
Questionnaire Evaluation of Selected Parameters of Forest Recreational Trails Suitable for Wheelchair Users in Slovakia and in the Czech Republic
Jitka Fialová, Mariana Jakubisová, Pavla Kotásková, Pavlína Procházková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1493-1498 | DOI: 10.11118/actaun201765051493
The article presents the results of a survey on the preferences of disabled people in wheelchairs for selected features of recreational trails in forests. The study was conducted in in the years 2015 and 2016 with a sample of 109 people from Slovakia and from the Czech Republic (57 respondents in Slovakia and 52 in the Czech Republic). The questions in the survey were designed to determine the preferences concerned in this article: answers regarding the optimal length of the route for one trip and the distance between the accompanying trail elements (information signs, shelters etc.) are presented. We have observed differences between the respondents'...
Selenium in Goat Nutrition
Pavel Horký, Pavel Nevrkla, Jiří Skládanka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1499-1503 | DOI: 10.11118/actaun201765051499
The aim of the experiment was to assess the effect of selenium on the qualitative and quantitative parameters of goat milk. The experiment was conducted on an organic farm in June and July of 2016. The experiment lasted for 30 days. The breeds were chosen shorthaired. Twelve goats were categorized into the experimental group (n = 6) and the control group (n = 6). At the beginning and at the end of the experiment, milk samples were taken from each goat for the analysis. The results showed that the addition of selenium proved an effect on selenium concentration in goat milk. However, the effect of the milk components (fat, protein, lactose, urea, number...
Computer Simulation of Car Aerodynamic Properties
Ivan Janoško, Tomáš Polonec, Peter Kuchar, Pavel Máchal, Martin Zach
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1505-1514 | DOI: 10.11118/actaun201765051505
The paper presents an optimization of car aerodynamic properties using the simulation software STAR-CCM+. For real simulation was used tested car Fiat 127 which was modified on the performance car. The basic objective of this work is using computer simulations to obtain knowledge about the impact of individual body parts on the results of aerodynamic drag, downforce or lift. Based on the results, bodywork modifications will be designed to improve the aerodynamic characteristics of the body, but would not disrupt the basic shape and appearance of the vehicle. The modifications will be again subjected to tests in simulation software. On the modified...
The Effect of Ambient Temperature on Conception and Milk Performance in Breeding Holstein Cows
Kristýna Klementová, Radek Filipčík, Martin Hošek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1515-1520 | DOI: 10.11118/actaun201765051515
The aim of this study was to identify the effect of ambient temperature and season of the year on conception difficulties in Holstein cattle. The experiment was conducted on the School farm in Žabčice. Data were collected from July 2016 to January 2017. Experimental population counted 263 breeding Holstein cows, which were inseminated during the observation period. Results of this study confirmed the effect of temperature and season on conception rates in dairy cows. In winter season, successful conception was recorded in 56.36 % of cows in average ambient temperature 1.48 °C, in summer season the conception rate was only 40.43 % in average daily temperature...
Faunistic Study on Spiders (Araneae) in the Špraněk National Nature Reserve with Suggestion to Conservation Management of the Locality
Ondřej Košulič
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1521-1535 | DOI: 10.11118/actaun201765051521
Spiders (Araneae) are a classic indicator taxon for evaluating the health of natural environments. Here, spiders from the forest ecosystems in Špraněk National Nature Reserve (Olomoucký Region) were investigated. A total of 1195 specimens were collected by pitfall traps, individual collection, sweeping herb vegetation, beating shrubs and trees, and shifting leaf litters. Currently, 126 species from 23 families from April to October 2013 were recorded. The species diversity in the Špraněk area is rather high, representing approximately 14 % of Czech araneofauna. The most abundant species were Pardosa alacris and Xerolycosa nemoralis from...
Some Effects on the Performance of the Czech Warm-Blood Horse in the Horse Breeding Station (ŠCHK) - Měník
Barbora Kubištová, Iva Jiskrová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1537-1542 | DOI: 10.11118/actaun201765051537
Using the Excel programme a database was created of 332 horses born at the horse breeding station (ŠCHK) - Měník after 1 August 1993. The database was transferred to the Unistat 6.5 programme and by means of the linear model GLM evaluated were some effects on horse performance in the horse breeding station (ŠCHK) - Měník. For the evaluation of breeding activities we selected a few important effects on the herd, i.e. sex, father (line), mother (family) and year of birth. For each horse of the database we identified the basic measurements, results from the score on entry into the studbook and performance tests. The database included a total of 15 homogeneous...
The Italian Garden Influence Within the Development of Garden Design in the Czech Lands (Bohemia and Moravia)
Zora Kulhánková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1543-1556 | DOI: 10.11118/actaun201765051543
This article puts the Czech garden into the context of the development of garden design in Europe. Although it has not been defined as a garden type, it has always reflected new directions and modified them in line with geographical and cultural differences. The selected examples illustrate the development of garden art in the Czech lands from the 16th to the 18th century with an emphasis on Italian patterns and Italian artists. There are gardens that took the morphology of the Italian garden - they were built in slopes, their architecture uses terraces and stairs, dynamic water is used or some building elements typical of the...
The Perception of the Urbanized Areas in Case Study of the Town Rosice
Helena Lorencová, Marcela Gotzmannová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1557-1565 | DOI: 10.11118/actaun201765051557
This article deals with how the residents of the town Rosice perceive the surrounding landscape in aesthetic terms, how it affects them and which of the landscape components they find the most valuable and necessary to preserve for the next generations. This article briefly describes the essential characteristics as well as the landscape composition of the area in question. It summarizes the results of a sociological survey which was carried out in April 2015. The majority of respondents considered the town of Rosice to be a good place to liveand agreed that what they liked most were visual percepts of the area and the sites where panoramic views could...
The Effect of Using Low-Phytate Cereal Varieties on Phosphorus Digestibility and Selected Production Indices
Ondřej Malý, Jan Mareš, Iveta Zugárková, Lukáš Mareš
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1567-1577 | DOI: 10.11118/actaun201765051567
The pollution of surface waters by excessive biogenic elements, especially phosphorus, is a highly topical subject. Fishery management on ponds may be one of the potential sources of phosphorus in waters. Cyprinid fish generally have a very poor digestion of the phosphorus contained in the plant-based components of feeds. In them, phosphorus is deposited in the form of phytic acid which is almost indigestible for cyprinids. The conducted testing was focused on affecting the digestibility of phosphorus contained in plant-based feeds. Two of the cereals most frequently grown in the Czech Republic were tested, namely, wheat and barley. Control feeds were...
Effect of Temperature Cumulation on Milk Yield of Czech Fleckvieh-Simmental Cattle
Stanislav Navrátil, Daniel Falta, Gustav Chládek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1579-1584 | DOI: 10.11118/actaun201765051579
The aim of this study was to asses the effect of temperature cumulation on milk yield of Czech Fleckvieh-Simmental cattle. Experiment for this study was executed on private farm in Czech Republic with permanently open-sided barn, in which were cows stabled (49°12'36.7"N 16°23'42.1"E). Cows were stabled in free stall box system. Experiment lasted three months (May-July) of 2016. In total 114 cows were include in this study. They were divided according to yield to three groups: more than 25 kg of milk per day, 20.1-24.9 kg of milk per day and less than 20 kg of milk per day. The data loggers placed inside the stable collected data about temperature every...
Effect of Chlorella Vulgaris and Japonochytrium sp. Microalgae Supplementation on Composition and Fatty Acid Profile of Goat Milk
Klára Novotná, Milena Fantová, Lenka Nohejlová, Markéta Borková, Luděk Stádník, Jaromír Ducháček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1585-1593 | DOI: 10.11118/actaun201765051585
The aim of this study was to investigate the effect of two species of the microalgae on the milk yield, the basic composition and the fatty acid profile of goat milk, with focus on n-3 fatty acids. Forty-five White short-haired goats were randomly allocated to three groups; the control group (C) with no supplementation microalgae to the diet. The first experimental group (Ch) was supplemented with Chlorella vulgaris and second experimental group (J) has been supplemented with Japonochytrium sp. The Japonochytrium supplementation negatively affected milk yield, but the amount of milk fat (+0.1 %; +0.45 %) and solids-not-fat (+0.27...
Determination of Selected Pesticide Residues in River Water Using SBSE Technique
Andrea Purdešová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1595-1599 | DOI: 10.11118/actaun201765051595
The analytical procedure based on stir-bar sorptive extraction technique, for the determination of selected pesticide residues (diazinon, malathion, cyprodinyl, penconazole, fludioxonyl, pyriproxyfen, boscalid, pyraclostrobin) is described. Analysis was performed using the commercial TwisterTM stir bar for sorptive extraction. It consists of a 2.0-cm-long glass-encapsulated magnetic stir bar externally coated with PDMS. The extracts were off-line analyzed using fast GC-MS in SIM mode. Optimized conditions were established as follows concerning extraction time, stirring speed, aqueous medium characteristics (ionic strength and polarity) respectively:...
Analysis of Reproductive Traits in the Painted Stork (Mycteria leucocephala)
Zuzana Rečková, Radek Filipčík, Ladislav Máchal, Ivo Křivánek, Pavel Nevrkla, Roman Horský
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1601-1605 | DOI: 10.11118/actaun201765051601
The aim of the present study was focused on analysis of reproductive traits in the painted stork (Mycteria leucocephala). The analysis of partial reproductive traits was intended to complete the knowledge necessary for ensuring reproduction of the painted stork in captivity on the required level. The observation was performed in the Zoo Zlín - Lešná from 2011 to 2014. The eggs were measured and weighed after laying and then in several-day intervals. Other observed traits were hatchability of the eggs, number of raised young birds and their weight after hatching. During whole observation period, a total of 90 eggs of the painted stork were evaluated...
The Effect of the Tractor Tires Load on the Ground Loading Pressure
Lukáš Renčín, Adam Polcar, František Bauer
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1607-1614 | DOI: 10.11118/actaun201765051607
The contribution, based on the experimental measurement, analyses the issue of a specific pad loading pressure in relation to radial wheel load and tire inflation. Tile inflation in terms of allowed radial load, which we wish to be high as far as possible in terms of the power transmission from the wheels to the ground is important for the field tensile works, on the other hand, the pressure in the tire is closely related to the contact area and ground loading pressure. The obtained results show the following: Michelin Multibib 650/65 R38 tire, inflated to a pressure of 80 kPa has a sufficient reserve in radial load. As the measurement results show,...
Effects of Biochar Application on Winter Wheat (Triticum aestivum L.) Roots Under Long-term Drought Conditions
Zdenek Svoboda, Jaroslav Záhora, Helena Dvořáčková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1615-1622 | DOI: 10.11118/actaun201765051615
The main objective of this paper was to evaluate the effect of applying biochar and activated carbon on winter wheat affected by drought in model laboratory conditions. Cultivation tests of the soil-microorganisms-plant (winter wheat) system were focused on understanding the interactions between microbial soil communities and experimental plants in response to specific cultivation measures, in combination with the modelled effect of drought. The containers were formed as a split-root rhizotron. In this container experiment, the root system of one and the same plant was divided into two separate compartments where into one half, biochar or activated...
The Effect of Low Air Temperature on Behaviour and Milk Production in Holstein Dairy Cows
Martina Vaculíková, Irena Komzáková, Gustav Chládek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1623-1627 | DOI: 10.11118/actaun201765051623
The aim of this study was to evaluate the influence of low air temperature on behaviour and milk production in Holstein dairy cows. The experiment was carried out at a Mendel University Farm in Žabčice, CZ, between 06-12-16 and 28-02-17. The average outdoor temperature during the above mentioned period was 2.3 °C and the average barn temperature was 1.8 °C. Other known microclimatic parametres were (in average values): relative humidity (56.9 %), refrigerating quantity (37.3 W.m-2), light intensity (326.7 lx), and air flow (0.1-0.4 m.s-1). The values were always measured at 10:00 am. In the experiment, 75 Holstein dairy cows were...
Where Are African Agricultural Policies Heading and How Does this Influences Migration?
Petr Blížkovský
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1631-1641 | DOI: 10.11118/actaun201765051631
This paper addresses the link between lack of rural development and migration flows and investigates whether weak agricultural development and poor governance indicators can be explaining factors for migration. The African continent offers a mixed picture with both positive developments and challenges ahead. With regards to its agricultural sector, Africa still has many challenges to face. Lack of quality infrastructures, widespread poverty, environmental degradation and human capital issues have to be addressed if the continent is to rise up from its current situation. As regards migration, the paper was unable to establish a clear correlation between...
Estimating the Cost of Equity Using a Mining Build-up Model
Petr Bora, Michal Vaněk
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1643-1653 | DOI: 10.11118/actaun201765051643
Among other methods, build-up models have been used to value equity. However, the build-up models are usually general models to appraise business and financial risks, and thus cannot fully mirror the special characteristics of different industries. The article presents a new model called 'Mining Build-up Model' to assess the risks of mining companies. The model has four modules of risks (A - Business risks, B - Financial risks, C - Mining risks, and D - Module of a mining company), altogether roofing 12 areas of different risks. To demonstrate its usefulness, the Mining Build-up Model was applied on a mining company called OKD, a.s. - a member of the...
Assessment of Selected Equipment by Method FTA
Marián Bujna, Petr Dostál
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1655-1661 | DOI: 10.11118/actaun201765051655
The aim of my research was to qualitatively and quantitatively evaluate the potential risks on Extruder, detect the probability of occurrence and therefore take reformation measures for their elimination or minimization. Throughout the research, we focused on the process compounding and recycling of plastic waste, production stage of secondary processing with plastic waste. We have reviewed the extruder machine. First, we qualitative consider the device by constructing fault tree. First, we consider qualitative data of the device with constructing fault tree, Subsequently, we use quantitative analysis and we specify the probability of a negative phenomenon....
Interdisciplinary Model of a Brand in a Competitive Environment
Jana Burešová, Jaromír Štůsek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1663-1669 | DOI: 10.11118/actaun201765051663
A company's brand is an aggregate of many aspects and a key business asset which can be significantly influenced from the interdisciplinary perspective. A single symbol/sign incorporates the total value of the brand which represents an important competitive tool as well as the brand's ability to cope with changes in the environment. Based on findings from the theory and with the help of an experimental investigation, a coherent model was put together which interconnects the unique chain of brand relationships and expresses the brand development from its beginning up to the top level, i.e. a brand with a unique identification. Brand is influenced not...
Leverage Effect and Stochastic Volatility in the Agricultural Commodity Market under the CEV Model
Michal Čermák
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1671-1678 | DOI: 10.11118/actaun201765051671
The problem of price fluctuation is crucial to the concept of financial engineering nowadays. The aim of this paper is twofold; first to investigate the leverage effect of the main agricultural commodities - wheat and corn, i. e. the relationship between monetary returns and the volatility of commodity prices and, secondly to capture their stochastic volatility by forming an appropriate model.The data are considered as 'post-crisis' data. That means the period after the biggest shock to the world economy. Thus, the Constant Elasticity of Variance (CEV) model is used calibrated to the Generalized Method of Moments (GMM). The paper is briefly based...
The Level of Shelves and Space Solution as One of the Key Factors for Consumer Attention
Denis Drexler, Martin Souček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1679-1686 | DOI: 10.11118/actaun201765051679
This paper is focused on consumer attention to the positioning of 5 product categories (packaged vegetables, dairy food, packaged fish, packaged meat and frozen food) in store bays and shelves. The results compare consumer attention to different levels of shelves. A different space solution - the SpaceGrid II system - was also used in the chosen bays. In these bays, the data indicate a distinct increase of consumer attention. The data were obtained through the eye-tracking device SMI RED 250 (n = 22). Particular attention was given to consumer perception by analysing AOI (areas of interest). The research was carried out during September 2015 in the...
Using HMM Approach for Assessing Quality of Value at Risk Estimation: Evidence from PSE Listed Company
Tomáš Konderla, Václav Klepáč
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1687-1694 | DOI: 10.11118/actaun201765051687
The article points out the possibilities of using Hidden Markov model (abbrev. HMM) for estimation of Value at Risk metrics (abbrev. VaR) in sample. For the illustration we use data of the company listed on Prague Stock Exchange in range from January 2011 to June 2016. HMM approach allows us to classify time series into different states based on their development characteristic. Due to a deeper shortage of existing domestic results or comparison studies with advanced volatility governed VaR forecasts we tested HMM with univariate ARMA-GARCH model based VaR estimates. The common testing via Kupiec and Christoffersen procedures offer generalization that...
Family Involvement, Employee Engagement and Employee Performance in Enterprising Family Firms
Ravindra Hewa Kuruppuge, Ales Gregar
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1695-1707 | DOI: 10.11118/actaun201765051695
The study has been designed to analyze probable determinants of employee performance in family firms. A quantitative methodology was adopted. Data were collected from 113 employees from fifteen family businesses located in the Western Province in Sri Lanka. Correlation and ordinal logistic regression analysis were used to elaborate the relationships. Correlation analysis indicated that both family involvement and employee engagement correlate to employee performance. Family involvement in case of holding positions in functional and strategic levels by family members has shown no correlation to employee performance. Yet, having a family member as immediate...
Does Urbanization Boost Pollution from Transport?
Jeyhun Mikayilov, Vusal Shukurov, Shahriyar Mukhtarov, Sabuhi Yusifov
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1709-1718 | DOI: 10.11118/actaun201765051709
The study examines the impacts of urbanization, energy consumption and real GDP on atmospheric pollution from automobile transport in Azerbaijan in the STIRPAT framework. Since the study uses time series variables the unit root properties of employed variables are tested for non-stationarity. Stationarity of the data is tested using conventional Augmented Dickey-Fuller test. The study employs Autoregressive Distributed Lags Bounds Testing (ARDLBT) approach to co-integration. This method is one of the most preferable approaches among alternatives in the case of small samples. Estimation results indicated that the variables are cointegrated, in another...
Position of the Bakery Enterprises in the Czech Republic According to Detailed Specification of the Businesses
Zdeňka Náglová, Tereza Horáková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1719-1727 | DOI: 10.11118/actaun201765051719
Bakery industry is one of the key sectors within the production of food products; however, there is a decrease of staff and lack of interest in studying or doing business in this branch, which is consistent with below-average wage. Very low labour productivity associated with labour intensity and a low economic performance of the industry is also characteristic. This article aims to identify whether those unfavourably evolving characteristics are common to the entire industry, or relate only to specific types of businesses and if they differ significantly among these companies. The existence of companies with similar characteristics will be verified...
Comparative Analysis of Debt Financing Models in Czech and Ukrainian Agriculture
Olena Oliynyk-Dunn, Viktor Adamenko, Pavel Žufan
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1729-1739 | DOI: 10.11118/actaun201765051729
The paper defines the essence of financing models (financing patterns) from the viewpoint of different scientific approaches. Using the operational viewpoint it then analyses the use of different financing model by large and medium-sized agricultural enterprises of Ukraine and the Czech Republic. Based on this analysis, there are identified the basic financing models in Czech and Ukrainian agriculture. The changes that occurred in the role of the debt financing model for enterprises in the sector in both countries are determined. The role of debt financing model for agricultural enterprises in Ukraine, in contrast to the Czech Republic, significantly...
A Model of Charging Service Demand for the Czech Republic
Jan Pekárek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1741-1750 | DOI: 10.11118/actaun201765051741
The paper introduces a standalone model of electric vehicle charging demand based on large-scale travel survey data of the Czech Republic. This demand model has been intended as a comprehensive input model for following charging infrastructure problem, where a spatial view of charging demand is usually needed. The model uses publicly available data, whose mutual incompatibility and information richness had to be overcome. The necessary data transformations are described and final data representation in the form of a mathematical graph allows the introduction of a point-defined (vertex-defined) charging demand model. Several drawbacks of the model are...
Eco-Innovation Performance and Selected Competitiveness Issues Perceived by Managers in the EU Member States - a Cross-Country Analysis
Adam Ryszko
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1751-1760 | DOI: 10.11118/actaun201765051751
This paper analyzes links between eco-innovation performance and selected competitiveness issues perceived by managers in the 26 EU member states. Different dimensions of eco-innovation performance in individual EU member states were examined based on the Eco-Innovation Scoreboard. The country-specific data on selected competitiveness issues were obtained from the survey of business leaders carried out by the IMD World Competitiveness Center. The data on the Summary Innovation Index applied in the European Innovation Scoreboard were also used. The results of the cross-country analysis indicated that overall eco-innovation performance is strongly correlated...
Factors Influencing Off-leash Dog Walking in Public Places
Michaela Sediva, Kristyna Holcova, Lenka Pillerova, Eva Koru, Petr Řezáč
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1761-1766 | DOI: 10.11118/actaun201765051761
Little is known about factors that influence owners' decisions walking their dogs on or off a leash in public places. We examined the effect of the type of public place, dog's age, sex and size, and human gender on off-leash dog walking. Observations of 1850 dogs and their owners were made in streets and parks in Brno (Czech Republic). Multiple logistic regression analysis showed no significant effect of human gender on the frequency of unleashed dogs in streets and parks. Off-leash dog walking was 2.8 times more likely in parks than in streets. Adult dogs were unleashed 1.9 times more likely than puppies in streets and parks. Larger dogs were unleashed...
The Comparison of Customer Relationship Management (Crm) in Czech Small and Medium Enterprises According to Selected Characteristics in the Years 2015, 2010 and 2005
Halina Starzyczná, Pavlína Pellešová, Michal Stoklasa
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1767-1777 | DOI: 10.11118/actaun201765051767
The aim of the article is to present the results of the research in 2005 and 2015, respectively 2010, in the field of Customer Relationship Management (CRM). The subject of the research is CRM knowledge, CRM definition preference, customer contact level, and CRM results. The object of the research are the SMEs in the Moravian-Silesian Region. A method of comparison of selected characteristics was used. Starting point is a brief theoretical discussion based on selected studies, including a brief genesis of research. Recent primary research using questionnaire survey addressed 736 respondents. Comparing the results of the research confirmed the growth...
Economic Aspects of the Missing Data Problem - the Case of the Patient Registry
Hatice Uenal, David Hampel
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1779-1791 | DOI: 10.11118/actaun201765051779
Registries are indispensable in medical studies and provide the basis for reliable study results for research questions. Depending on the purpose of use, a high quality of data is a prerequisite. However, with increasing registry quality, costs also increase accordingly. Considering these time and cost factors, this work is an attempt to estimate the cost advantages of applying statistical tools to existing registry data, including quality evaluation. Results for quality analysis showed that there are unquestionable savings of millions in study costs by reducing the time horizon and saving on average € 523,126 for every reduced year. Replacing...
Land Tenure in Latin America: from Land Reforms to Counter-Movement to Neoliberalism
Eduardo von Bennewitz
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1793-1798 | DOI: 10.11118/actaun201765051793
Latin America, with a Gini coefficient for land of 0.79, is the world's most unequal region in terms of land distribution. Land inequality is one of the greatest impediments to Latin American societies for achieving sustainable development and economic growth. Many studies have demonstrated how an unequal land concentration affects the quality of democracy and social cohesion and inhibits economic growth. Land is the main and in many cases the only asset for millions of rural households in the region and Land tenure can mean the difference between subsistence and extreme poverty. The present work reviews the agrarian reform processes that were experienced...
Factors Influencing Flight Delays of a European Airline
Martina Zámková, Martin Prokop, Radek Stolín
Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1799-1807 | DOI: 10.11118/actaun201765051799
The main aim of the paper was to investigate factors influencing flight delays of a European airline. Besides the identification and analysis of those factors the paper offers possible suggestions on how to eliminate the delays. The research is based on data acquired over the period of time spanning from June to September in 2008-2014. Analysis of contingency tables, including Pearson's chi-squared test, has been used for data processing. The dependencies have been presented in graphical form by using correspondence maps.The proportion of delayed flights reaches approx. 50 % during nearly the entire monitored period only in September the proportion...