We present a short tutorial on driving the 2-meter telescope coudé spectrograph and on acquisition of scientific data. We hope that visitors collaborating with stellar department will appreciate this tutorial as an useful cookbook. Although the user interface driving the spectrogtaph and CCD controller is quite comfortable, it is not possible to find or understand all keywords and commands intuitively. Therefore we present this manual containing all necessary commands with descriptions and examples.
In this paper, we discuss an efficient Bayesian computational method when observed data are incomplete in discrete graphical models. The data augmentation (DA) algorithm of Tanner and Wong [8] is applied to finding the posterior distribution. Utilizing the idea of local computation, it is possible to improve the DA algorithm. We propose a local computation DA (LC-DA) algorithm and evaluate its computational efficiency.
Data mining is a set of methods for data processing with the aim to obtain non-trivial information not apparent at first glance usually due to the huge data volume or their complexity. This new scientific discipline helps to solve problems of this kind. and Data mining, neboli dolování dat, je soubor metod sloužících ke zpracování dat a získání netriviálních informací v nich obsažených, které nejsou na první pohled zřejmé a ani zkušení odborníci je nejsou schopni odhalit, zejména z důvodu velikosti datových souborů nebo komplexnosti vazeb. Proto vznikl data mining jako vědní obor, který za pomoci moderní výpočetní techniky řeší podobné problémy.
Morphology of the nematode Viguiera dicrurusi Gupta, 1960 harboured by Dicrurus macrocercus albirictus (Hodgson) (Passseriformes: Dicruridae) from Baruipara in 24-Pargonas (South) district, West Bengal, India was studied by light and scanning electron microscopy (SEM). This represents the first study of V. dicrurusi using SEM. Scanning electron micrographs provided detailed information about the nature of pseudolabial plates, number and shape of teeth, dentate nature of striae, and the relative position of vulva, anus and phasmid opening in female. A detailed morphometrical comparison of this species with Viguiera viduae Chabaud, 1960 described from Dicrurus forficatus from Madagascar indicates that V. viduae is a junior synonym of V. dicrurusi. Two other species, Viguiera bhujangai Jehan, 1972 and Viguiera adsimilisai Sood et Kalia, 1978 are considered species inquirendae.
The Institute of the Rock Structure and Mechanics AS CR operates the GEONAS network that now consists of 17 perm anent GPS observatories. The outliers and in consistencies occur within the time series observed in the winter season 200 5/2006 for the position of the GNSS antennas of the observatories SNEC and BISK located high in the m ountains, at th e Sněžka Mt. (1602 m, the Giant Mts.) and the Biskupská kupa Mt. (890 m, the Jeseníky Mts.) respectively. Therefore web cameras and meteorological sensors were in stalled at GEONAS observatories located in the mountain regions. The snow coverage and other meteorological influences affecti ng the antennas monitoring GPS signals at these observatories were estimated. The individual photos were analyzed and compared to variations in the time series to obtain the time series for winter seasons reducing the snow coverage effects., Milada Grácová, František Mantlík, Vladimír Schenk and Zdeňka Schenková., and Obsahuje bibliografické odkazy