Anomálie urachu jsou vzácné. V literatuře najdeme práce pojednávající spíše o jednotlivých případech než velké soubory nemocných. Optimální léčba zůstává předmětem debat. Uvádíme kazuistiku 13měsíční dívky s infikovanou cystou urachu. Jedná se o onemocnění s dobrou prognózou při včasně zahájené adekvátní léčbě, může se však manifestovat i jako život ohrožující sepse či peritonitis, pokud dojde k ruptuře cysty., Urachal anomalies are rare. Literary data include case reports, studies analysing data from large groups are not available. Optimal treatment remains a matter of debate. The disease has a good prognosis when adequate treatment is initiated early. It can however also manifest with a lifethreatening sepsis or peritonitis. We report a case of 13-month-old girl with infected urachal cyst., Jana Horáková, Jan Starczewski, Miloš Fiala, Vladislav Smrčka, Jiří Kubále, Aleš Petřík, and Literatura
Skulls, jaws and teeth of wild terrestrial small mammals (Sciuridae, Soricidae, Erinaceidae, Talpidae, Gliridae, Arvicolidae, Muridae) are occasionally affected by anomalies and pathologies. The present study documents a total of 362 anomalies and 122 pathological changes across 20 different species. These are all based on data published in Germany, supplemented by our own records. Cases were classified into 14 different categories, according to bone and dental anomalies, fractures and inclusions, bone proliferation, dental disease and extreme wear of teeth. An additional category to specifically account for bone proliferation of the skull was not needed, but such findings are to be expected. The most frequent finding was abnormal tooth growth, particularly the elongation of the upper incisors. In individual cases, there was evidence that small mammals are able to recover even from serious injuries to the skull.
Autoři popisují případ 78leté ženy s masivní hemoptýzou, zdrojem které byla hypertrofická bronchiální tepna anomálně odstupující z a. thoracica interna. CT angiografie provedená na multidetektorovém CT přístroji ektopickou bronchiální tepnu zobrazila. Následná selektivní embolizace dané tepny akrylátovým lepidlem vedla k zástavě hemoptýzy. Nemocná neměla recidivu krvácení během 24měsíčního sledování. Anomální odstup bronchiální tepny není vzácný a proto je nutné na něj myslet zejména v případech, kdy není patrná žádná tepna zásobující bronchy v normální anatomické lokalizaci. CT angiografie provedená na multidetektorovém CT přístroji má vysokou úspěšnost v detekci odstupu bronchiálních tepen a slouží k navádění při jejich katetrizaci a embolizaci., The authors describe a case of a 78-year-old woman with massive hemoptysis, which was from to hypertrophic bronchial artery anomalously originating from the internal thoracic artery. CT angiography performed on multidetector CT shows anomalous origin of the right bronchial artery. The bronchial bleeding was treated with embolization. The patient had no recurrent bleeding during 24 month follow-up. Ectopic origin of bronchial arteries is not rare, therefore it is necessary to consider it especially in cases when no bronchial artery arises between the upper margin of the fifth thoracic vertebra and the lower margin of the sixth thoracic vertebra. Currently, multidetector computed tomography has a crucial role in diagnostic algorithm of massive or recurrent hemoptysis and is used as a guidance for endovascular embolization therapy., Vendelín Chovanec, Miroslav Lojík, Jan Raupach, Vladimír Koblížek, Jiří Máslo, Ondřej Renc, Antonín Krajina, and Literatura 16
The ancient Mesopotamian music (tonal) system was first interpreted as ascending (Kilmer, Duchesne-Guillemin, Wulstan, Gurney, Thiel and myself). Criticism of the "descending interpretation" (Krispijn, West, and, more recently, Gurney). No argument for this is valid (transformation of original heptatonic and nomenclature, primitive scales, ancient Greece a.o.). Musical-anthropological constants and nomenclature, psychology in the interpretation of notated sources, and the construction of harps all speak for the "ascending" interpretation. Question of Guerney´s new reading...
Shelah's pcf theory describes a certain structure which must exist if $\aleph _{\omega }$ is strong limit and $2^{\aleph _\omega }>\aleph _{\omega _1}$ holds. Jech and Shelah proved the surprising result that this structure exists in ZFC. They first give a forcing extension in which the structure exists then argue that by some absoluteness results it must exist anyway. We reformulate the statement to the existence of a certain partially ordered set, and then we show by a straightforward, elementary (i.e., non-metamathematical) argument that such partially ordered sets exist.
In this paper we give a new set of verifiable conditions for the existence of average optimal stationary policies in discrete-time Markov decision processes with Borel spaces and unbounded reward/cost functions. More precisely, we provide another set of conditions, which only consists of a Lyapunov-type condition and the common continuity-compactness conditions. These conditions are imposed on the primitive data of the model of Markov decision processes and thus easy to verify. We also give two examples for which all our conditions are satisfied, but some of conditions in the related literature fail to hold.