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The possibilities and conditions for the use of tools for analyzing customer behavior on social networks
Horák, Vít ; Molnár, Zdeněk (advisor) ; Měsíček, Libor (referee)
The thesis deals with free tools that can be used to analyze customers of SMB e-commerce enterprises on the social network Facebook in order to increase their competitiveness within the social network. The theoretical part focuses on defining key terms, distinguishes types of social media and describes present social networks situation in world and in the Czech Republic from a users perspective and in the Czech Republic also from an enterprises perspective. Furthermore, the theoretical part also deals with possibilities that social networks can offer to the SMB enterprises. And as well it identifies different types of analytical tools that can be used for purposes of monitoring customers or analysis of customers. In the beginning of the practical part there is introduced the company Dobrutka.EU s.r.o. (the e commerce B2C company). Afterwards is presented the analysis of the survey about how SMB companies that operate the best Czech e-shops monitor and analyze their activities and customers from the social network Facebook. Subsequently there is handled the selection of appropriate tools for SME companies, which are also analyzed in the following chapter. At the end of the practical part there is practical application of knowledge from the thesis to Dobrutka.EU s.r.o. through the design and pilot deployment of appropriate procedures and analytic tools, whose effectiveness is evaluated at the end of chapter. The main benefit is in act of finding and verification of free tools and effective method that allows for detailed analysis of company customers even for micro companies and thus also effectively achieve positive economic results even in emerging facebook presentations.
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Influence of meadow management on the migration behavior of selected species of butterflies
Bubová, Terezie ; Langrová, Iva (advisor) ; Farkač, Jan (referee)
Migrations are the key process and one of the basic biological features, which allow survival of endangered species in fragmented landscape. In the last decades, agriculture intensification, industry and urbanization caused that number of natural butterfly habitats has significantly decreased. The localities originally suitable for butterflies are currnetly converted to farmland or building plots. This PhD thesis aimed to find a compromise solution of meadow management, which should allow a commercial use and concurrently do not jeopardize the continued existence of endangered or threatened species. The main idea of this study was in the intentional emigration causing in the middle of flight period, which should lead into resettlement of the population to another (potentially more suitable) locality. Possibility of aimed manipulation with butterfly emigrations would be considered as a major breakthrough in their protection.
The investigated species Phengaris nausithous (Bergsträsser, 1779) and Phengaris teleius (Bergsträsser, 1779) are both considered to be flagship species for protection of European butterflies at open meadows. This study is based on research, which was carried out in 2013-2015 at 17 patch in localities Dolní Labe, Czech Republic. In above mentioned years, one selected meadow was mowed in the middle of flight season and the emigrations were then monitored using mark-release-recapture method. Results of population and migration characteristics were calculated in MARK 8.1 software. Subsequently, the effect of mowing on emigration (comparison of emigrations from the meadow before and after mowing) was evaluated using Statistica 13.
The hypotheses of this study were based on the assumption, that the loss of resources after well-timed mowing should increase the activity of adult butterflies. During the monitoring, number of emigrations was increased only in flight season 2015. Unfortunately, the statistical evaluation did not show significant effect of mowing on migrations. On the other hand, the hypothesis dealing with colonization of nearest meadows was confirmed.
Effect of intentional emigration caused by management interventions was unfortunately not proved. However, we found out, that even though the population at one mowed meadow decreased clearly, the metapopulation size at the locality remained more or less stable.
At investigated (mowed) meadow, there was observed a sharp decline of P. nausithous abundance. On the other hand, P. teleius population was only slightly reduced. It is therefore conceivable, that P. teleius are not as susceptible to innapropriate term of mowing. The results obtained in our research conclusively displayed no possible positive effect of mowing in the middle of flight season and a necessity of suitable management maintenance at localities inhabited by Phengaris butterflies.
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Monitoring of surface changes caused by underground mining in the Karviná region
Doležalová, Hana ; Kajzar, Vlastimil
Geodetic monitoring of the Louky locality revealed irregularities in the development of the subsidence depression and it also helped to document the changing terrain due to ongoing reclamation activities. Repeated GNSS measurements recorded not only the size of subsidence of individual points, but also the size and direction of horizontal displacement of these points, which revealed the influence of undermining in the area of interest, and in its surroundings. It turned out that particularly the significant tectonic fault A forms a barrier of the influence of underground mining. The subsidence depression develops differently than the models of the predicted subsidence expected, especially in the area between the tectonic faults X and A. The method of aerial photogrammetry recorded not only the subsidence caused by underground mining, but also the extent and size of the changes caused by the ongoing reclamation of the surface.
Fulltext: content.csg -  PDF
Plný tet: UGN_0464599 - PDF
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Possibilities in monitoring of laser welding process
Horník, Petr ; Mrňa, Libor
With increasing demands on the quality of the welds, it is usual to apply automated machine welding with monitoring of the welding process. The resulting quality of the weld is largely affected by the behavior of keyhole. However, its direct observation during the welding process is practically impossible and it is necessary to use indirect methods. At ISI we develop optical methods of monitoring the process based on analysis of radiation of laser-induced plasma using Fourier and autocorrelation analysis. Observation of keyhole inlet opening is partially possible through a coaxial camera mounted on the welding head and the subsequent image processing. A high-speed rear camera to understand the dynamics of the plasma plume. Through optical spectroscopy of the plume, we can study the excitation of elements in a material. Shielding gas flow can be visualized using schlieren method.
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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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The agricultural drought monitoring and its users and correspondents
Bartošová, Lenka ; Trnka, Miroslav ; Semerádová, Daniela ; Hlavinka, Petr ; Štěpánek, Petr ; Zahradníček, Pavel ; Žalud, Z.
Drought monitoring in the Czech Republic is a key element in climate monitoring. The aim of this article is to describe the possible participation of agronomists, foresters and fruiterers in drought monitoring within the Integrated Drought Monitoring System. This system monitor drought occurence weekly on the base of various information (data from model SoiClim or outputs from satellite Aqua and Terra). One of the main pillar of the monitor is also information about drought impact on yields in the cooperation with especially farmers. Their expert assessment brings insight into actual situation in agricultural landscape in weekly time step. All results are free to download in www.intersucho.cz.
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Work in social integration process of adults with intellectual disability.
SVITÁKOVÁ, Iveta
In my bachelor thesis, I dealt with the use of work activities in the process of social integration of adults with mental disabilities, the aim was to create, implement and evaluate regular work activities intended to a specific group of adults with mental disability and focused primarily on the development of social integration. The thesis is structured into six chapters. The first of them is focused on the definition of mental disability, characteristic of adulthood as an important developmental period in human life, and on adulthood of individuals with mental disabilities with a goal to find and identify the specifics that were needed to be taken into account when working with this target group of people. The following section is devoted to the social integration, its determinants and the environment in which it operates. I continued with the outputs in the third chapter, where I focused on key competencies, which them are the necessary basis for social integration, especially social and personal skills and communication skills, necessary basis. Targeted professional development can be realized through educational activities, but has to respect the specificities of the participants and voluntary participation. Both of these assumptions can be fulfilled within the leisure education using adequate pedagogical methods. For this reason, I decided to focus my attention on these areas at the end of the chapter. The fourth chapter is devoted to work and work activities, namely the definition of concepts, their characteristics and importance and role of work activities in human life, or a person with mental disability. Based on all acquired theoretical knowledge and using previous experience with the target group in the fifth chapter, I designed a specific training program based on the work and activities focused on the development of selected key competences. The educational program volunteered four participants, but I have decided to follow the development of competencies of three participants because one participant attended the program very irregularly. The program has been implemented three times a week, two and a half hours for seven months (from October 2015 to May 2016) in the premises of the training centre Mo-zai-ka. At the beginning of the realisation of the created educational program, the participants agreed that we will adhere and develop good habits necessary for good relations within the group and the results of the work. On a basis of the individual characteristics of the participants, I prepared the work, which should also contribute to the development of social and personal and interpersonal skills. I have continuously monitored and recorded them. During the implementation of the program, I put emphasis on repetition, patient negotiations with participants and creating a friendly atmosphere. After completing the training program, I evaluated the development of competencies in three selected participants. On that basis, I concluded that the biggest change was in the communicative competence. I also experienced a change in social and personal competencies, however, results varied widely among individual participants. Yet, I believe that the goal of the thesis was achieved. These results show that education in leisure time, based on work activities may lead to the development of social and personal and interpersonal skills that are for adults with mental disabilities necessary in the process of social integration. This thesis can be an interesting source of inspiration for the realisation of similar programs aimed at social integration of persons with mental disabilities.
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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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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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