In this paper we analyze the use of statistics and associated problems, in three Czech biological journals in the year 2000. We investigated 23 articles Folia Biologica, 60 articles in Folia Microbiologica, and 88 articles in Physiological Research. The highest frequency of publications with statistical content have used descriptive statistics and t-test. The most usual mistake concerns the absence of reference about the used statistical software and insufficient description of the data. We have compared our results with the results of similar studies in some other medical journals. The use of important statistical methods is comparable with those used in most medical journals, the proportion of articles, in which the applied method is described insufficiently is moderately low., T. Pilčík., and Obsahuje bibliografii
The Prison Service of the Czech Republic has been collecting e-data about imprisoned persons and presenting particular descriptive statistics in its annual reports since 1996. However, essential underlying information and complex relations analyses are not worked out in depth. The Institute of Criminology and Social Prevention offers particular narrowly focused analysis, but has never prepared a comprehensive description based on Czech prison data and models derived from it. As the country is about to prepare a prison service reform, complex statistical and microeconomic models are required. One of the reasons why advanced modelling could not be conducted was the absence of an appropriately adapted dataset. This article describes the steps from a dataset provided by the Prison Service of the Czech Republic to a fi nal database which allows performing advanced analyses. The aim of this paper is also to describe the properties of the database and to report the total number and structure of cases of imprisonment in the CR between 1996 and 2012., Maria Králová, Laura Fónadová., and Obsahuje bibliografii
The radial velocities of star forming regions and young open star clusters from our galaxy are investigated statistically. We use the cubic, plane approximation of a general veloclty fleld and conclude that with all objects from our sample, which reside withln 10 kpc from the Sun, the veloclty field is close to clrcular. However, the young objects from the local spiral arm deviate. This deviatlon is dlfferent from that caused by the llnear denslty wave or by the collislonless expansion from a small region. We propose that the velocities of young local objects may be Interpreted as a consequence of a large scale multl-supernova remnant.
We present the preliminary results of a study of the solar prominences observed at Lomnický Štít coronal station with the 20 cm coronagraph during the ascending phase of cycle 22. The observational material was processed and a catalogue of prominences was prepared. On the basis of this catalogue some statistical results were obtained. They concern mainly the latitudinal, longitudinal and time distributions of the prominences and their basic morphological characteristics.
The main aim of this work is to evaluate the development of rainfall-runoff regime in selected river basins of the Šumava Mountains (Bohemian Forest), the Jeseníky Mountains and the Krušné Mountains (Ore Mountains) in the last 50 years. Besides the identification of inhomogeneity in time series of mean discharges, rainfall amounts, temperature and snow cover data, the work deals with an analysis of trends using annual and monthly data. Different methodological tools for identification of changes and trends in hydro-climatic time series have been introduced in this study, especially different methods of statistic testing and an application of Mann-Kendall seasonal test. The results have been compared not only from the point of view of the methods applied here, but as well from the viewpoint of geographical difference of the mentioned areas. and Hlavním cílem předložené studie je zhodnotit vývoj srážko-odtokového režimu ve vybraných povodích v oblasti Šumavy, Jeseníků a Krušných hor za posledních 50 let. Vedle zjišťování nehomogenit v časových řadách průměrných průtokových, srážkových, ale i teplotních a sněhových dat se práce zabývá analýzou trendů na úrovni ročních hodnot a jednotlivých měsíců. V práci jsou představeny různé metodické nástroje ke sledování změn a trendů v hydroklimatologických řadách, zejména různé metody statistického testování a aplikace Mann-Kendallova sezónního testu. Výsledky jsou porovnány nejen z hlediska použitých metod, ale i geografické rozdílnosti sledovaných území.