12 research outputs found
Blanka Říchová a kolektiv: Vládní modely v parlamentních systémech (Nizozemsko, Švédsko, Itálie, Španělsko, Slovensko a Mauretánie).
Blanka Říchová a kolektiv: Vládní modely v parlamentních systémech (Nizozemsko, Švédsko, Itálie,
Španělsko, Slovensko a Mauretánie). 1. vydání. Praha: Fakulta sociálních věd Univerzity Karlovy, 2006, 201 stran, ISBN 978-80-86731-00-1 (signatura knihovny ÚMV 53 347)
Ladislav Cabada: Politický systém Slovinska.
Ladislav Cabada: Politický systém Slovinska. 1. vydání. Praha: Sociologické nakladatelství (SLON), 2005, 272 stran,
ISBN 80-86429-37-7 (signatura knihovny ÚMV 52 339 PK)
Development of multilayer polymer floor systems
Vícevrstvé polymerní podlahové systémy patří k rozšířeným materiálům jak v průmyslové výstavbě, tak v bytové. Jedná se o většinou o dvousložkové polymerní materiály na bázi epoxidových pryskyřic. Cílem mé diplomové práce je zpracovat požadavky na polymerní vícevrstvé podlahové systémy a využití odpadních materiálů jako plniv do polymerní pojivové složky. Dále pak využití těchto znalostí pro vývoj polymerních vícevrstvých podlahových systémů, navrhnout patřičnou recepturu a primární zkoušky na mnou navržené směsi.Multilayer polymer flooring systems belongs to widespread materials for industrial constructions and also for public constructions. These are mostly two-components polymeric materials based on epoxy. The main aim of my thesis is to make list of requirements for multilayer polymer flooring system and utilization of waste materials as fillers in polymer epoxy. Then use this knowledge for development of multilayer polymer flooring system and propose the new recipe and primary test´s for this material.
Anthropology of Albanian insurgencies after 1981
Presented work analyzes quantitatively and qualitatively at the micro-level the activities of insurgent groups and organizations that were operating among Albanians in Kosovo, Macedonia and South Serbia during 1981-2010, particularly in the form of terrorism and guerrilla warfare. Major attention is paid to the Kosovo Liberation Army (KLA). Based on it, the work presents an empirically measurable theoretical model of social mobilization into violent collective action. The model, whose basic goal is to explain the so-called free-rider problem in a high-risk collective action, consists of four theses: 1. Violence helps maintain the internal cohesion of the clandestine group, change public attitudes, attract new recruits and convince potential donors of the meaningfulness of financial contributions. 2. The problem of free-riding in collective action is weakened when the threat posed by the state and opportunities became balanced, and participants will get the subjective feeling of safety among large numbers of others. 3. Open insurgencies do not spread evenly across the country, but in geographical clusters around selected epicenters. 4. In the initial phase of an open insurgency, self-organization prevails, with most new recruits joining it due to the prospects of resolving their personal life...Práce rozebírá kvantitativně i kvalitativně na mikro-úrovni činnost povstaleckých skupin a organizací operujících mezi Albánci na Kosovu, v Makedonii a v jižním Srbsku v rozmezí 1981-2010, zejména formou terorismu a guerrillového válčení. Největší pozornost je věnována Osvobozenecké armádě Kosova (UÇK). Na základě toho práce předkládá empiricky měřitelný teoretický model společenské mobilizace do násilné kolektivní akce. Model, jehož základním cílem je vysvětlit tzv. problém černého pasažéra ve vysoce riskantní kolektivní akci, se skládá ze čtyř tezí: 1. Násilí napomáhá udržet vnitřní soudržnost podzemní skupiny, změnit postoje veřejnosti, přitáhnout nováčky a přesvědčit potenciální dárce o smysluplnosti finančního přispění. 2. Problém černých pasažérů v kolektivní akci je oslaben v okamžiku, kdy se hrozba ze strany státu a příležitosti vyrovnávají a účastníci získají subjektivní pocit bezpečí mezi množstvím dalších. 3. Otevřené povstání se územím nešíří plošně, ale v geografických shlucích kolem vybraných ohnisek. 4. V počáteční fázi otevřeného povstání převládá samoorganizovanost, většina nováčků se do něj zapojuje kvůli vyhlídkám na řešení své osobní životní situace. Samoorganizací vzniká síť vzájemně si důvěřujících, vysoce motivovaných lidí, kteří se do povstání zapojují mezi prvními a zejména...Ústav etnologieInstitute of EthnologyFaculty of ArtsFilozofická fakult
Dissolved and gaseous nitrogen losses in forests controlled by soil nutrient stoichiometry
Global chronic nitrogen (N) deposition to forests can alleviate ecosystem N limitation, with potentially wide ranging consequences for biodiversity, carbon sequestration, soil and surface water quality, and greenhouse gas emissions. However, the ability to predict these consequences requires improved quantification of hard-to-measure N fluxes, particularly N gas loss and soil N retention. Here we combine a unique set of long-term catchment N budgets in the central Europe with ecosystem 15N data to reveal fundamental controls over dissolved and gaseous N fluxes in temperate forests. Stream leaching losses of dissolved N corresponded with nutrient stoichiometry of the forest floor, with stream N losses increasing as ecosystems progress towards phosphorus limitation, while soil N storage increased with oxalate extractable iron and aluminium content. Our estimates of soil gaseous losses based on 15N stocks averaged 2.5 ± 2.2 kg N ha−1 yr−1 and comprised 20% ± 14% of total N deposition. Gaseous N losses increased with forest floor N:P ratio and with dissolved N losses. Our relationship between gaseous and dissolved N losses was also able to explain previous 15N-based N loss rates measured in tropical and subtropical catchments, suggesting a generalisable response driven by nitrate (NO3−) abundance and in which the relative importance of dissolved N over gaseous N losses tended to increase with increasing NO3− export. Applying this relationship globally, we extrapolated current gaseous N loss flux from forests to be 8.9 Tg N yr−1, which represent 39% of current N deposition to forests worldwide
Long-term neutralization of acidic condensate from gas condensing boilers
The pH of wastewater needs to remain between 6 and 9 to protect water organisms. Condensates from a gas condensing boiler have a pH value of about 3. An optimal way to neutralize the acid condensate is to use cheap material such as dolomite. An old-style neutralization box (NB) was tested with a standard faction of dolomite. However, it did not sufficiently neutralize the condensate. Therefore, several tests were performed involving changes to the construction of the neutralization box, a finer fraction of dolomite and aerating the condensate in the neutralization box. In summary, a new NB technology with partitions, a finer fraction of dolomite and condensate aeration proved sufficient in the neutralization of the pH of the condensate in the short and long terms. It depends on what material the heat exchanger is made of in the condensing boiler. The aluminum content reduces the effectiveness of dolomite in the long run, so aerating the condensate in the NB is recommended, which leads to its more effective neutralization.Web of Science1422art. no. 1501
Predicting sulphur and nitrogen deposition using a simple statistical method
Data from 32 long-term (1994–2012) monitoring sites were used to assess temporal development and spatial variability of sulphur (S) and inorganic nitrogen (N) concentrations in bulk precipitation, and S in throughfall, for the Czech Republic. Despite large variance in absolute S and N concentration/deposition among sites, temporal coherence using standardised data (Z score) was demonstrated. Overall significant declines of SO4 concentration in bulk and throughfall precipitation, as well as NO3 and NH4 concentration in bulk precipitation, were observed. Median Z score values of bulk SO4, NO3 and NH4 and throughfall SO4 derived from observations and the respective emission rates of SO2, NOx and NH3 in the Czech Republic and Slovakia showed highly significant (p < 0.001) relationships. Using linear regression models, Z score values were calculated for the whole period 1900–2012 and then back-transformed to give estimates of concentration for the individual sites. Uncertainty associated with the concentration calculations was estimated as 20% for SO4 bulk precipitation, 22% for throughfall SO4, 18% for bulk NO3 and 28% for bulk NH4. The application of the method suggested that it is effective in the long-term reconstruction and prediction of S and N deposition at a variety of sites. Multiple regression modelling was used to extrapolate site characteristics (mean precipitation chemistry and its standard deviation) from monitored to unmonitored sites. Spatially distributed temporal development of S and N depositions were calculated since 1900. The method allows spatio-temporal estimation of the acid deposition in regions with extensive monitoring of precipitation chemistry
Software for Traffic Monitoring
This thesis deals with detection and tracking of moving objects in video sequences. The aim of this work is design and implementation of an application, which uses video sequence capturing car traffic to acquire statistical data about each vehicle, such as its speed estimate and determination of its lane. The proposed application uses background subtraction method 'Mixture of Gaussians' and enables monitoring of multiple locations at the same time using independent cameras. The output data are saved into database and users are allowed to display statistics in graphs through a simple web interface
Injuries of the central nervous system : mobile phone consultations
Transmission of visual documentation between a neurosurgery center and a regional hospital, with a mobile phone, significantly improves consultation on a craniocerebral injury. This is one of the methods of fast consultation on image documentation (CT). We reported on one year of experience (September 2007 to September 2008) of our department with this method of image transmission in 16 patients with craniocerebral injury. The images were exported, via the Internet, from local hospitals through the PACS system [Picture Archiving and Communication System], in DICOM III format, to the server of the Regional Hospital of T. Ba'a, (KNTB). Browsing of the acquired image documentation at particular stations was possible with the xVision browser. The data were exported to a secure hospital Web server, IIS60, to enable consultation on the images, which were changed to JPEG format. The consulting physician was connected to this server with his/her mobile phone by means of the Internet browser. After establishing the connection, it downloads and gradually displays the images on the screen of the mobile phone. The whole process takes approximately 10 minutes. After comparing the images on the screen of the mobile phone and on the workstation using the xVision browser, we verified that there was no difference in the quality of imaging of the pathological lesions recorded with CT