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Optimization of network flow monitoring
Žádník, Martin ; Lhotka,, Ladislav (referee) ; Matoušek, Radomil (referee) ; Sekanina, Lukáš (advisor)
The thesis deals with optimization of network flow monitoring. Flow-based network traffic processing, that is, processing packets based on some state information associated to the flows which the packets belong to, is a key enabler for a variety of network services and applications. The number of simultaneous flows increases with the growing number of new services and applications. It has become a challenge to keep a state per each flow in a network device processing high speed traffic. A flow table, a structure with flow states, must be stored in a memory hierarchy. The memory closest to the processing is known as a flow cache. Flow cache management plays an important role in terms of its effective utilization, which affects the performance of the whole system. This thesis focuses on an automated design of cache replacement policy optimized to a deployment on particular networks. A genetic algorithm is proposed to automate this process. The genetic algorithm generates and evaluates evolved replacement policies by a simulation on obtained traffic traces. The proposed algorithm is evaluated by designing replacement policies for two variations of the cache management problem. The first variation is an evolution of the replacement policy with an overall low number of state evictions from the flow cache. The second variation represents an evolution of the replacement policy with a low number of evictions belonging to large flows only. Optimized replacement policies for both variations are found while experimenting with various encoding of the replacement policy and genetic operators. The newly evolved replacement policies achieve better results than other tested policies. The evolved replacement policy lowers the overall amount of evictions by ten percent in comparison with the best compared policy. The evolved replacement policy focusing on large flows lowers the amount of their evictions two times. Moreover, no eviction occurs for most of the large flows (over 90%). The evolved replacement policy offers better resilience against flooding the flow cache with large amount of short flows which are typical side effects of scanning or distributed denial of service activities. An extension of the replacement policy is also proposed. The extension complements the replacement policy with an additional information extracted from packet headers. The results show further decrease in the number of evictions when the extension is used.
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Product of Tourism portfolio for the seniors in Strakonice destination
MELKOVÁ, Šárka
The aim of this work was to evaluate the primary and secondary offer of tourism products in Strakonice. Analyse segment of seniors, to evaluate the level of service of tourism in Strakonice and propose measures to improve the situation. Primary and secondary data served to analyse the current state of Strakonice. Primary data were obtained from the survey, which results are in this work. The analysis segment of seniors was also obtained by survey. The research results are summarized in the synthesis of the results and findings. Measures were proposed based on the survey results that would contribute to the development of tourism in Strakonice. To improve the current situation, it is suggested editing centers for the elderly, namely to build a barrier-less access via mobile stair chair and a new promotional banner. It is suggested wheelchair access and greater number of secure benches at the bus station in Strakonice. The latest proposal concerns the purchase of electric bikes.
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Project management in selected company
POKORNÝ, Radek
This work deals with project management in chosen company. It has two parts. The first part is theoretical, which is focused to theoretical treatment of the subject. It explains what is the project, management of projects, organizations of projects, processes of project management, what is target of project, communication, control, changes and risks and more. In the practical part I focused to concrete company and project management and than I analyzed concrete project. Name of the mentioned company is OHL ŽS, a.s. It is company from Spain, which acts all over the world. In the Czech Republic has the base in Brno. This company has several divisions and every of them is focused to different professional architecture. I have chosen division of structural engineering. This division builds all kinds of buildings. It could be construction of new buildings or reconstruction. To analysis of chosen project I used various business documents, contracts with investor or suppliers, document which include billing, timetable. I especially used my experience with projects of this company, and I was part of this project. Name of this project is Reconstruction of cladding including replacement windows and insulation. During the analysis of project I found a couple major gaps. If we could avoid these gaps, we could increase profit. These graphs is especially in management. At the beginning there were appointed two temporary construction managers. They doesn't care about result project, because they knew that they will not be to the end of the project. These gaps are because there is missing motivation system. Project manager can´t affect results of employees. It doesn´t depend on performance of employees, they always has the same wages. For elimination of these gaps I proposed several suggestions for improvement. The first suggestion is modification and extension of motivation system. New motivation system include personal evaluation. This evaluation depends on performance of employee. The second part is bonus from over profit. The next suggestion is make a new working position. This position would take care about controlling and project documentation. During the building project, especially at the end is construction manager very busy. It depend of decision of construction 63 manager what kind of activity will have prefer. Project documentation and administration or controlling of building works. If they are doing everything correct and technology are respect. Suggested position would take care about invoices, real work, which is done, project documentation, controlling of budget. The third suggestion is purchase of small machinery such as chipping hammers and drills. At this time they rent all devices. Rent is higher than purchase price. The last suggestion is use credit to restoration of fleet. At this time they have obsolete fleet, because the bought all cars by cash. It is not conveniently.
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The role of a nurse in a prevention and a treatment of intestinal parasites of children
JANDOVÁ, Anna
The best-known intestinal parasites are Pinworms, Roundworms, Tapeworms and the disease called Toxocarosis. The oftenest parasite is, according to sources, the Pinworm. Intestinal parasites affect mostly young children of pre-school age, sometimes even older. The first goal of the thesis was to investigate parents' awareness of the prevention of parasitic diseases in children. There is a hypothesis set to this goal: Parents of children who suffered from parasitic disease are more informed than parents of children who have not had this disease. The second goal was to map the specifics of nursing care for children with parasitic diseases at GPCHA practice. A research question was chosen for this aim: What are the specifics of nursing care at GPCHA in parasitic diseases? In methodology, the empirical part was chosen and it was a qualitative - quantitative research survey. For the quantitative part, the interrogation method and technique of non-standardized questionnaire was used. The research sample of quantitative survey consisted of 223 respondents, it means parents whose child is aged from 0 to 6 years. The questionnaires were distributed on social networking and others in a nursery school in Týn nad Vltavou. At the very beginning, respondents were acquainted with the topic of the thesis. The results of a quantitative survey were processed with the help of a data matrix and were further processed within twenty-arranged bar charts. To verify the hypothesis, we used the Chi- Quadrat test, which in this case is not satisfactory, therefore, there had to be chosen to merge the responses. An interrogation method, technique-depth interview was used in the qualitative part. The research group consisted of five nurses; three nurses working at GPCHA in Týn nad Vltavou and two working at GPCHA in České Budějovice. While processing the interviews, there open coding was used and an analysis of interviews was conducted by using the method of Pencil and Paper Interview. The results of this bachelor thesis will be published in the journal Paediatrics practice.
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Specifics of nursing care in patients after transapical aortic valve implantation.
VOTRUBOVÁ, Nataliya
Transcatheter aortic valve implantation (TAVI) is a new and an attractive method in cardiology and as well as in cardiac surgery. It is constantly evolving method which has been developed as an alternative to standard open surgery, especially in patients with severe symptomatic aortic stenosis with unacceptably high perioperative risk or patients who are not suitable for conventional open heart surgery because of age and comorbidities.A teamwork is very importantfor this new method and approach. The choice for TAVI is discussed by the institutional multidisciplinary heart team, typically consisting of interventional cardiologists, imaging-specialists, cardiac surgeons and anaesthesiologists. The first implant in a human being was performed by Cribierin 2002. In Czech Republic this method was first used in 2008. Transcatheter aortic valve implantation (TAVI) was accepted as a minimally invasive alternative to open surgery. This method does not require the use of cardiopulmonary bypass, and cardiac arrest. Other several benefits includinglower risks of bleeding and stroke events, better wound healing, less pain, as well as more rapid early recovery due to preservation of continuity of the sternumthat result in shorter durations of stay in the hospital, earlier rehabilitation and faster returns to normal life. In the presented work was used a combination of qualitative-quantitative methods of investigation. The data was obtained by using the quantitative research. The main technique was using the questionnaires designed for nurses working at the Department of Cardiac Surgery, Hospital Czech Budejovice, a. s. These results were backed up by the implementation of qualitative research, which investigated the patients and physicians view on monitored issues. Questioning method using a semi structured interview technique was used for qualitative research. The results of the survey were processed using descriptive statistics charts in LibreOffice Calc and using diagrams created in LibreOffice Writer. Qualitative results of the research were transcribed from audio recordings and coded, and the base code was created nine categories of interviews with clients/patients and three categories of interviews with doctors. The aim of this work was to explore the specific problem of nursing care about the clients / patients after transapical aortic valve implantation. On the base of our obtained data it is evident, that the client/patient after TAVI may be positioned sideways, the use of surgical drains are less frequently, so the care about the surgical wounds is simpler, patients report less pain in the surgical wound and postoperative rehabilitation and recovery is shorter. H1 - The nurses take care about the clients/patients after transapical aortic valve implantation in the same way as about the clients/patients after open aortic valve replacement, without realizing the differences between the patients treated with different approaches, was not confirmed. The nurses'sees/reported major differences in invasiveness and extent of providing care, rehabilitation, convalescent, in the duration of the hospitalization and better cosmetic effect. The results of the research can serve as a basis for creating the standards of nursing care or educational material for clients/patients. It is also possible to present the results of this work at a specialized seminar for non medical healthcare workers and results can also increase the quality of nursing care about the clients/patients after transapical aortic valve implantation.
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A nursing issue: peripheral venous catheter
TOMÁNKOVÁ NOVÁKOVÁ, Monika
Peripheral venous catheter is used to access the venous system. It is one of the most commonly used invasive procedures in health care facilities. This procedure falls within the competence and daily tasks of nurses. Therefore this type of nursing care is susceptible to risk of proceeding routinely which might result in conscious or unconscious errors. Peripheral venous catheter needs to be introduced into the patient's vein in the following cases: planned parenteral nutrition, infusion or transfusion therapy, application of intravascular medication or contrast media, rehydration, blood sampling (which can be performed immediately after introducing the peripheral venous catheter and before administrating medication) and also during an emergency care for critically ill (such as cardiopulmonary resuscitation). Nurses should be as knowledgeable as possible about this issue so that the peripheral venous catheter can be introduced well and fulfil its purpose. It is important to ensure that nurses obtain all the necessary information about their patients before inserting the catheter and that they are able to properly inform the patients about the procedure and to communicate with them. Next, nurses should be familiar with the correct procedure for inserting catheters, they should be informed about possible contraindications and know how to choose the correct type of catheter as well as where to place it. Furthermore, nurses should care for this vascular access correctly and provide the patient with enough information about taking care of the catheter after the procedure. Finally, nurses should be aware of their own potential errors and also of possible complications. Therefore they should employ aseptic technique so that they can eliminate nosocomial infections. The thesis is divided into a theoretical and an empirical part. The theoretical part focuses on the history of peripheral venous catheters and their types, indications and contraindications, necessary equipment, nursing care, complications, etc. The empirical part consists of a research. The aim of the thesis was to map the use of peripheral venous catheters in hospitals as well as to identify factors that may lead to problems among the patients with peripheral venous catheters. Four research questions were assigned to these aims. 1. What is the procedure prior to inserting a peripheral venous catheter? 2. What are the standards of caring for patients with an inserted peripheral venous catheter? 3. In which steps of caring for peripheral venous catheters do the nurses lack knowledge? What equipment do the nurses prepare in order to insert a peripheral venous catheter? The Bachelor's thesis was conducted using a qualitative research survey. The methods of collecting data included semi-structured interviews and participant observations. The research was carried out only in one hospital ward and it was anonymous. First, the data were collected by means of a semi-structured interview. The nurses were asked 14 questions (see Appendix 8). During this interview, several more subquestions were added. The results of the interviews were then grouped into several categories for the sake of clarity. The second method of collecting data was participant observation. The observed facts were recorded into an observation sheet (see Appendix 9). The same nurses who were interviewed were also observed. This Bachelor's thesis has been written in order to provide a basic overview of the peripheral venous catheters. It could be used as an information source for more experienced as well as novice nurses. The practical output of this Bachelor's thesis is a nursing care standard concerning peripheral venous catheters. This standard was missing in the hospital ward and could help the nurses to take care of these vascular accesses, to proceed correctly and eliminate possible errors (see Appendix10).
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Management styles and their relation to the satisfaction of employees
GRAMANOVÁ, Kamila
Abstract - Leader empowering behaviours and their relation with worker's satisfaction Current state: Nurse's work is physically and mentally demanding. Adequate knowledge and skills are also needed. Nurse managers whose leader empowering behaviours administer to good functioning of medical institutions have therefore a crucial role. In these days a monitoring of job satisfaction is an upcoming matter. According to that we can look for drawbacks and problems and take corrective actions. There is a 9th year of the nationwide research of safety and satisfaction of employees of Czech hospitals. Aim: The first aim of the research was to find out what leader empowering behaviours are used the most by nurse managers. The second aim was to find out how leader empowering behaviours influence satisfaction with work conditions of nurses. Two hypotheses were given. The first hypothesis postulated that nurse managers use democratic empowering behaviours the most. The second hypothesis postulated that satisfaction with work conditions of nurses is changeable, depending on leader empowering behaviours. Methodology: A quantitative method of data capture was chosen. Non-standardised questionaires with 30 closed questions were given out. There were four questions at the beginning to identify respondents. Other set of 15 questions was focused on recognition of leader empowering behaviours. Satisfaction with work conditions was monitored in the last set of questions. Results of the research were processed into graphs and tables. Research set: The research set included nurses working under nurse managers in inpatient wards in České Budějovice a.s. hospital. The questionaire was appropriately filled in by 112 nurses, corresponding 74,7% recoverability. This was used to complete the aim of this thesis. Results: Results of the thesis were divided into two sets. The first set of questions aimed on leader empowering behaviours of managers under whom the questioned nurses of particular departments work. Democratic empowering behaviours were evaluated the most used, according to the first hypothesis. The second set of questions aimed on satisfaction with work conditions. The highest job satisfaction was reached with democratic empowering behaviours. Autocratic, liberal and nonspecific empowering behaviours were used in minimal degree and nurses reported lower job satisfaction among these behaviours. Therefore the second hypothesis was also confirmed. Conclusion: The research pointed out that leader empowering behaviours are one of the factors that influence job satisfaction. It is positive thing that an interest and research in this area increased in the last decade. Periodic evaluation of job satisfaction enables monitoring the direction of its values. According to the survey, a newsletter with recommendations for nurse managers was formed. This newsletter pointed out pros and cons of leader empowering behaviours.
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Evaluation of FGMRI provenance plot with European beech (Fagus sylvatica L.) on the locality Jíloviště, Baně (Central Bohemia)
Kuklová, Alena ; Podrázský, Vilém (advisor)
Buk lesní (Fagus sylvatica L.) je nejvýznamnější listnatou dřevinou České republiky. V minulých letech se jeho zastoupení velmi snížilo v důsledku nešetrné těžby, přírodních disturbancí a následně hlavně změnou lesního hospodaření, kdy se upřednostňovaly především jehličnaté dřeviny smrk ztepilý (Picea abies) a borovice lesní (Pinus sylvestris). Provenienční výzkum se, díky jejich preferování při pěstování, nejprve věnoval hlavně jehličnatým dřevinám, až v pozdější době se zaměřuje i na dřeviny listnaté. V současné době se naše lesní hospodářství k buku znovu vrací a jeho zastoupení se v našich lesích pomalu opět zvyšuje.
Úkolem diplomové práce je provedení terénního šetření na provenienční výzkumné ploše VÚLHM Strnady č. 82 Jíloviště, Baně ve věku 34 let (zjištění počtu rostoucích jedinců, tloušťkového a výškového růstu, tvárnosti kmene, větvení, úhlu větví, tloušťky větví), zjištěná a naměřená data statisticky zpracovat a vyhodnotit rozdíly mezi testovanými proveniencemi buku lesního.
V první části práce je zpracována literární rešerše, zaměřena na provenienční výzkum buku lesního, v další části jsou statisticky zpracovány kvantitativní a kvalitativní znaky zjišťované na výzkumné ploše. V poslední části jsou vyhodnocená data porovnávána s daty z minulých let.
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Innovation and Business Project
Teska, Jaroslav ; Moulis, Pavel (advisor) ; Michal, Michal (referee)
The aim of this diploma work is the creation of specific business project dealing with establishment of mensurational office. The literary research contains the definition of running a business and lying the foundation of own business project preparation. This basis contains recommended methods, requirements of business project and the structure.
The core of the diploma work deals with creation of specific business project on the basis of literary research knowledge. The first is the description on mensurational office following the analysis of surroundings on the basis of makro-surroundings and micro-surroundings analysis of the specific mensurational office. The next step is the description of business opportunities, human resources and marketing strategy. The conclusion of diploma work is dedicated to economic evaluation and reality of business project.
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