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Extensions to Probabilistic Linear Discriminant Analysis for Speaker Recognition
Plchot, Oldřich ; Fousek, Petr (referee) ; McCree,, Alan (referee) ; Burget, Lukáš (advisor)
Tato práce se zabývá pravděpodobnostními modely pro automatické rozpoznávání řečníka. Podrobně analyzuje zejména pravděpodobnostní lineární diskriminační analýzu (PLDA), která modeluje nízkodimenzionální reprezentace promluv ve formě \acronym{i--vektorů}. Práce navrhuje dvě rozšíření v současnosti požívaného PLDA modelu. Nově navržený PLDA model s plným posteriorním rozložením modeluje neurčitost při generování i--vektorů. Práce také navrhuje nový diskriminativní přístup k trénování systému pro verifikaci řečníka, který je založený na PLDA. Pokud srovnáváme původní PLDA s modelem rozšířeným o modelování neurčitosti i--vektorů, výsledky dosažené s rozšířeným modelem dosahují až 20% relativního zlepšení při testech s krátkými nahrávkami. Pro delší testovací segmenty (více než jedna minuta) je zisk v přesnosti menší, nicméně přesnost nového modelu není nikdy menší než přesnost výchozího systému. Trénovací data jsou ale obvykle dostupná ve formě dostatečně dlouhých segmentů, proto v těchto případech použití nového modelu neposkytuje žádné výhody při trénování. Při trénování může být použit původní PLDA model a jeho rozšířená verze může být využita pro získání skóre v případě, kdy se bude provádět testování na krátkých segmentech řeči. Diskriminativní model je založen na klasifikaci dvojic i--vektorů do dvou tříd představujících oprávněný a neoprávněný soud (target a non-target trial). Funkcionální forma pro získání skóre pro každý pár je odvozena z PLDA a trénování je založeno na logistické regresi, která minimalizuje vzájemnou entropii mezi správným označením všech soudů a pravděpodobnostním označením soudů, které navrhuje systém. Výsledky dosažené s diskriminativně trénovaným klasifikátorem jsou podobné výsledkům generativního PLDA, ale diskriminativní systém prokazuje schopnost produkovat lépe kalibrované skóre. Tato schopnost vede k lepší skutečné přesnosti na neviděné evaluační sadě, což je důležitá vlastnost pro reálné použití.
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Measuring phonological awareness – blend phoneme test in the beginning of schooling: an comparison of classical test theory and item response theory
Gorčíková, M. ; Šafr, Jiří
The main purpose of this paper is to show dis/advantages of two approaches classical test theory (CTT) and item response theory (IRT) to assess the level of diagnostic tools for evaluating phonemic awareness among first-grade students using longitudinal survey of children during the first grade of primary school (25 schools in Prague and Central Bohemia, 439 pupils). Phonemic awareness (FA) was measured by the task blend phonemes into syllables and words. The advantage of IRT compared to CTT is primarily a concept of independence of the test items. The probability of a response is dependent on the level of latent ability and characteristics of items. So if we know the characteristic of items parameter (difficulty) it could be estimated from the pupil´s responses the level of language skill for diagnostics. The results showed the need for blend phoneme test modifications (in particular for the end of the first grade) so as to adequately measure the high growth of FA ability levels during the first grade.
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The study of the influence of the single entry and pillar mining method in seam No. 40 in Jan-Karel protective shaft pillar, location CSA Mining Plant 1 on Jan and shaft No. 2 downcast shafts and on the CSA 3 upcast air shaft, surface and surface objects
Ptáček, Jiří ; Kajzar, Vlastimil ; Koníček, Petr ; Kukutsch, Radovan ; Waclawik, Petr ; Jiránková, E.
The presented method single entry room and pillar solves the possibility of applying single entry room and pillar mining method, where roadheaders are used, newly in two variants. According to the first of them will be entries and intra-entries inundated with a time lag with fly ash mixtures. The second variant will be excavated only basic entries with a width of 6.8 meters. They will not be flooded. The purpose of the study is also adding calculations of potential and the expected impact of single entry room and pillar method on the surface and surface objects and also the expected impact on the shafts in Jan-Karel protective shaft pillar.
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General Data Protection Regulation and its Impact on Grey Literature
Koščík, Michal
In April 2016, the European commission adopted a new General Data Protection Regulation. This regulation is based on fundamental principles of the existing legislation and elaborates it further into the set of rather detailed legal instructions. The suggested paper aims to summarize the parts of the new regulation that are most relevant for operators of gray literature repositories, who will have to adapt within the next two years. The paper will focus on the issues of consent to the processing of personal data, the legal regime of processing personal data without the consent of the data subjects, the data subject’s right to information as well as the legal regime of acquisition of personal data by third parties and exercise of the newly formulated right to be forgotten.
Fulltext: idr-1039_1 -  PDF
Slides: idr-1039_2 - PDF; idr-1039_3 - PDF
Video: idr-1039_4 -  MP4
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Specifics of nurse care at the patient with MRSA on surgery from nurses' point of view.
KALÁBOVÁ, Miroslava
Title of the thesis: Specifics of the nursing care of patients with MRSA in the operating room from an anesthesiology nurse perspective. The aim of this thesis was to identify the specifics of nursing care of a patient with the MRSA in the operating room from the perspective of nurses working in the operating room. In the theoretical part focus is given to nursing care and its specifics for a patient with MRSA. Chapters relating to the regime measures, barrier nursing procedures and the use of specific aids, instruments and tools are treated in detail. The nursing care provided by anesthesia nurses and perioperative nurses in the operating room is defined. To reach the goals the quantitative research through questionnaires was chosen. The research sample consisted of anesthesia nurses and perioperative care nurses. Two types of standardized questionnaires were used, consisted of closed questions where respondents chose an appropriate answer, and from semi-open questions where respondents could specify their answers, and in one case open questions. Both questionnaires were completed by 12 test questions, where respondents had the choice of three possible answers, where one answer was correct. The results of the investigation are summarized in two types of graphs. Bar charts were used in questions where more answers were possible to mark, and for a better clarity the results were supplemented by tables. Results to other questions, where options were limited by one answer, are shown in percentages in pie graphs. Our thesis is very narrowly focused, because we concentrated on specifics of nursing care in a patient with MRSA in the operating room. We have determined the specifics of barrier nursing, nursing problems in a patient with MRSA in the operating room. We have discovered barrier nursing procedures in a patient with MRSA in the operating room. We have also succeeded in assessing the knowledge of nurses working in the operating room. The goal was met. An interesting finding was that most of anesthetic nurses and perioperative nurses had responded that the structural and technical arrangement in the operating room was not satisfactory in terms of barrier nursing of a patient with MRSA. This problem was expected, owing to the author´s experience in operating theaters. Thus Hypothesis 1 is confirmed. In total five hypotheses were stated, four of which were confirmed and one was disproved. The aim of the thesis was to draw attention to problems in the operating room during nursing a patient with MRSA. In the course of the research work there were no problems, however, it is necessary to mention the lack of literature on MRSA with regard to nursing care in operating theaters. The theoretical section of this thesis could be recommended as a resource for the education plan created on the basis of information collected and the results of this research. The results of the research survey may serve for general public, anesthesia and perioperative nurses who could benefit from the educational plan in practice while providing nursing care for a patient with MRSA.
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Business Plan of a Small Enterprise Providing Services
BOČANOVÁ, Eliška
This bachelor thesis is dedicated to develop a business plan for the establishment and the development of small enterprise providing services in the fashion industry. The thesis is divided into two parts the theoretical part and the practical part. The theoretical part involves the basic terminology about business. It defines structure, contents and the principles of building development a business plan too. The practical part is completely prepared business plan for enterprise start-up. It is focused on the market analysis dealing with internal and external environment of the company, such as Porter five forces analysis and analysis of strenghts and weaknesses. Then a financial plan with initial costs, anticipated revenues and from the default operating result follows. The practical part includes opening balance sheet of corporate assets and liabilities. This business plan can eventually serve as a basic for real setting up a business.
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Effect of high temperatures and different water regimes on selected winter wheat varieties above-ground biomass production
Hlaváčová, M. ; Klem, Karel ; Hlavinka, Petr ; Trnka, Miroslav
The aim of this study was to assess the effect of high temperatures and soil water scarcity during anthesis on the above-ground biomass allocation of the two winter wheat varieties (Bohemia and Pannonia). The six growth chambers were used to simulate heat stress conditions within following gradient of temperature maxima: 26°C (control chamber), 29, 32, 35, 38 and 41°C. The relative humidity (RH) course and photosynthetically active radiation (PAR) intensity were controlled via protocols. Additionally, drought stressed (Dry) and well-watered (Wet) treatments were established within each growth chamber. The plants were removed from the growth chambers after 14 days and they were left until a full maturity, exposed to ambient weather conditions. The spike productivities of the main spikes and harvest indices (HI) of the main spikes were evaluated for particular treatments within both winter wheat varieties after harvest.
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Comparison of intercultural competences of nursing staff in the Czech Republic and German-speaking areas
TÝLEOVÁ, Tereza
The increasing migration of population in the 21 century causes development of multicultural societies. With the increasing number of foreigners in individual countries it is possible to also presume an increasing number of patients/clients from different cultures in medical facilities. These facts require modern attitude to nursing, developing of transcultural nursing, implementing multi- and transcultural education in the health care education and propagation of multicultural conception of nursing between the nursing personnel. The result of these necessary changes should be the ability to provide effective nursing care which is culturally adjusted to the patient/client that would also take their specifics, customs and traditions of their culture into account and that would saturate all their biological, psychological, social and spiritual needs according to their race, nationality or belief. This thesis deals with multicultural nursing and confronts cultural competence of the nursing staff in Czech Republic with that in German-speaking countries. This thesis aim is to state the level of multicultural competence of the nursing staff and explore conditions provided to the nursing personnel of the hospital for giving culturally adapted care to patients-foreigners. The results of the research give an overview of the state of culturally competent care in comparable medical facilities in Czech Republic, Germany, Austria and Switzerland. They will also give a feedback to the questioned hospitals. Such information may alert their management to possible lack of knowledge of their nursing personnel and help them direct its further education. The theoretical part of the theses defines the basic concepts regarding culture, ethnic groups, race or nation, formulates the difference between the terms "multicultural" and "transcultural" nursing, multicultural education and culturally competent care, compile the most common sections of specific cultural needs of the individuals. In short it also processes J. Campinha-Bacote's model of cultural competence in health care delivery, the Papadopoulos, Tilki and Taylor Model for developing cultural competence and the Purnell Model for cultural competence. It also shortly deals with nursing frameworks for acquiring cultural data, such as the Sunrise model from M. Leininger, the Giger and Davidhizar Transcultural assessment model and Bloch's ethnic/cultural assessment guide. The empirical part processes and evaluates data obtained during the quantitative research. The accumulation of the data was conducted through anonymous questionnaires that were distributed between the nursing personnel of internal and surgical wards of the hospitals in Czech Republic and in German-speaking countries. In Czech Republic these were hospitals in Prague and in Tábor, in Germany a hospital in Dortmund and one in Cottbus, in Austria the hospitals in Salzburg and in Weiz and in Switzerland a hospital in Aarau and one in St. Gallen. The collection of the data was conducted either on-line or by way of printed questionnaire forms. The acquired data were valorized and sorted into diagrams and tables for further clarity. From the respondent´s answers follows that the queried medical facilities in Czech Republic do not provide sufficient conditions for their workers to give culturally competent nursing care on such a level, as it is at the facilities questioned in the German-speaking areas. The results also show that language skills of the nursing personnel in these hospitals in Czech Republic are worse than those in the German-speaking countries. With the level of multicultural competence the situation is similar; in this field Czech nursing personnel does not match their foreign counterpart. It is necessary to remark that this research sample of two hospitals from each of the countries is insufficient for the results to be applied on the whole Czech Republic or German speaking countries.
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Coping strategies in children´s fear and pain in relation to nursing care
PROCHÁZKOVÁ, Zuzana
For the nurse, taking care of hospitalized children is important not only pediatric nursing knowledge, personal and social preconditions, but also the theoretical and practical competency of methods and techniques, which are used for identification and effective influencing of pain and fear. The aim of this thesis was to identify the main sources of fear of the hospitalized preschool and young school age children and to find out the effective methods and principles of the cooperation with children, alternatively with their accompanying parents in order to moderate the fear of the small patient. Then the thesis tried to chart the nursing diagnostic and evaluation procedure of the pain and get the most used nursing methods of non-pharmacological pain relief. To obtain the necessary data, the qualitative research was used with a semi-structured interview as a research instrument. The first research group consisted of 12 nurses, the second group consisted of 12 children ´s patients of preschool and young school age. The majority of the asked nurses thinks, that children´s patients are afraid especially of non-familiar environment, then of the awaited pain and of the solitude without parents. However, the most patients said, that they were afraid especially of pain, then of non-familiar environment, restriction of their needs, hostile attitude of the medical staff and of the other neighbouring patients. They were also frightened of the death and of the darkness. Most reported nurses mean, that the most effective solution of the children ´s fear is the friendly attitude of the medics. They also mentioned the fact of taking the focus off the fear and the presence of the parents is also beneficial. The nurses ´ answers were in conformity with patients opinion in two fields - friendly attitude of the medics and taking the focus off the fear. Then the children mentioned abiding of their specifics in connection to falling asleep and the demand of beying treated by the same sister or by few same sisters. All respondents also talked about the benefit of parents presence. Regarding the principles of the cooperation, nurses answered the importance of united medical procedures, especially the proper way of information transfer. Then the respondents nurses mentioned the psychical and emotional support for children and their accompaniments, the atmosphere of confidence and the value of well done education. Also the need of calm, silence and privacy was stated. Unlike nurses, children and their parents regarding to principles of the cooperation prefer the psychical and emotional support, then the importance of enough information was mentioned. The fourth research question bears on the methods used for children pain monitoring. The nurses said, that the intentional interview with the patients or with the parents was used as a main technique, that was stated by patients as well. Research question number five said: What are the most used nursing methods of non-pharmacological pain relief at children? Most responded nurses mentioned the distraction of children attention from the painful incentive, then the importance of physical methods, relief position and purposeful preparation for the unpleasant intervention. Nurses also named the helpful contribution of the parents, relaxing exercises and the method of imagination. Regarding the pain treatment, it was noted, that all patients prefered the analgesic therapy. Then they quoted the distraction of their attention from the painful incentive, the friendly attitude of the medics, using the ice compress and the relief position. In the pain acute phase, children required mostly calm, comfort and privacy. All children also considered the presence of parents as very helpful. The theoretical and empirical part of the thesis are suitable for being studied by nurses taking care of children and it can be helpful for nursing quality improvement at children ´s wards in hospitals.
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Nursing care management of patients after intrapleural chemical pleurodesis
KIESEWETTEROVÁ, Renáta
The pleurodesis is a treatment method for patients suffered from the symptomatic malignant pleural effusion. The goal of the pleurodesis is to close a pleural area by connection of visceral and parietal pleura in order to reduce or terminate production of pleural effusion. The sterile talc powder is the world's most used agens within a practice. After a parental analgesic is the powder (as a sllury) either applicated into a pleural cavity through the chest drainage or surgically dispersed over the treated (via abrasion, decortication) pleural space during the thoracoscopy/thoracotomy. This diploma thesis focuses on the treatment technique of bedside talc-pleurodesis through the chest drainage. The nurse has an irreplaceable role in the whole process from a preparation of patient to assistance by intrapreural application, to care of patient after the operation or serves as a physical support during potential complications. The aim of the presented work is to detect priorities in nursing care and find out whether patients need increased care after intrapleural therapy. The qualitative research method was chosen for the analysis where semi-structural interview with open questions were used. We created case reports analysed with the adaptive model of Callista Roy as well. The research sample contained patients chosen with respect to specialization of researched problem. We set two basic focal stimuli according to the analysis of respondents´ reactions. These stimuli serve as a basis for determination of priority parts of the nursing care by patients after bedside pleurodesis. We defined the need to be without pain and the need to ensure safety and certainty as a central focus of the nursing care. Among secondary fields of nursing care were identified sleep disturbances and limited mobility, which leads to reduction of self-care in getting dress, hygiene as well as in defection and miction. We found out within the second goal identical intensity of the nursing care before and after bedside talc-pleurodesis. This statement is based on comparison of interventions before and after aplication analysed via adaptive model by Roy. Nevertheless, causes of interventions were modified to a certain extent. The main goal of diploma thesis was to map requirements for high-quality nursing care related to bedside talc-pleurodesis via chest drainage. The work should extend theoretical basis not only for nurses in clinical practice.
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