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The influence of the internet on society: The issue of distribution of audiovisual content
Forman, Petr ; Řezníček, Václav (advisor) ; Čermák, Radim (referee)
The aim of this work is to analyze the influence audiovisual content distributed on the internet on society. The first part focuses on the theoretical framework and explains important notions for the rest of the thesis. The second part focuses on specific issues. This part deals with the positive and negative influences of the content on the behavior of people in society. The work deals with the reasons that motivate users to download illegal content and examines how is possible to limit this download and whether is this downloading harmful or not. The bachelor thesis also addresses how the monitoring of inappropriate content affect the thinking of the children and how can parents against these negative influences protect their children.
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Optimization of derivatization conditions of selected amino acids with FMOC-Cl
Chytrová, Marie ; Bosáková, Zuzana (advisor) ; Adamusová, Hana (referee)
Chiral HPLC method (mobile phase methanol/0.5% triethylammonium acetate buffer, pH 6.0 40/60 (v/v), teicoplanin based chiral stationary phase, fluorescence detection - - ex 254 nm, em 314 nm) was used for studying a recovery of derivatization procedure for D/L-alanin, D/L-valin, D/L-leucin and D/L-isoleucin. 9-Fluorenylmethyl chloroformate (FMOC-Cl) was used as a derivatization agent. The influence of derivatization temperature (22, 40 and 60 řC) and pH value of 0.2 M NaHCO3 (8.5 - 9.5) on derivatization recovery was monitored in terms of D-enantiomer peak areas for the individual amino acid. The optimal derivatization conditions were found to be pH 8.5 and temperature 40 řC. The developed method was applied to analysis of the real sample, food supplement BCCA Extreme Pure, containing L-isoleucin, L-leucin and L-valin. The sample was D-enantiomers free. Key words: chiral HPLC, teicoplanin, amino acids, derivatization, 9-fluorenylmethyl chloroformate (FMOC-Cl).
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Analysis of Czechoslovak arms industry in the 30s of the 20th century
Lörinc, Drahoslav ; Szobi, Pavel (advisor) ; Skřivan, Aleš (referee)
This thesis deals with the issue of armament in the interwar Czechoslovak Republic, particularly in the thirties. This period was characterized by the economic crisis and the subsequent boom of the armament. During this short period, Czechoslovakia became one of the largest producers and exporters of arms. Individual chapters describe approximated methods of financing arms production and the impact of related government spending on the national economy. The thesis continues by monitoring the development of the arms industry until the dissolution of the Republic in 1938 and describing the structure of the defense industry and the most important Czechoslovak arms factories, which included Škoda Works and Zbrojovka Brno. The threat of Nazi Germany forced yearly increase of military expenditures, accelerated modernization of the Czechoslovak army, which started the boom of the armament. One chapter is also devoted to arms exports, its relevance and impact on the overall trade balance.
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Occurrence of PBDE compounds and Bisphenol A in rivers with the occurrence of cryfish
Svobodová, Kateřina ; Vach, Marek (advisor)
The thesis deals with result evaluation of a project under the auspices of the EAA and Norway Grants, which ran from 2015 to 2016. The project's goal was to evaluate water quality at sites with native and invasive crayfish. The project also included monitoring organic substances such as Polybrominated diphenyl ethers (PBDEs). I mainly focused on a subset of PBDEs, the brominated flame retardants (BFRs). These substances have been monitored since the 1970s, when food was accidentally contaminated leading to the contamination of the nearby area in the US. What is alarming is their persistence in the environment, which leads to their constantly increasing levels. Information about the transformation and biodegradation of PBDEs in the environment is still limited and is continually analyzed in new studies. These substances are poorly volatile and insoluble, which makes dust and particles arising from the products containing BPAs the main sources of contact. Another agent, whose presence in the environment of the Czech Republic I analyzed, is Bisphenol A (BPA). BPA is used in the production of epoxy resins and polycarbonate plastics. BPA is a toxic substance with the ability to disrupt hormone function. Baby feeding bottles have been confirmed to contain these compounds. In April 2004, the Czech government approved a (program to reduce pollution of surface waters by dangerous harmful substances). In August 2004, the EU enacted a ban on the sale and use of penta-BDE and octa-BDE in all fields. Since 2011, Bisphenol A may not be used in the manufacture of baby feeding bottles. The goal of this thesis is to analyze and evaluate the amount and possible consequences of these substances in our environment, which are alarming even after full or partial bans on the use of these substances.
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Patient's satisfaction with the treatment of acute postoperative pain
Leibnerová, Jarmila ; Schneiderová, Michaela (advisor) ; Dostálková, Šárka (referee) ; Kaška, Milan (referee)
Anotation The bachelor thesis deals with questions of acute postoperative pain. The theoretical part focuses on the basic knowledge about acute pain. More details are processed about the post- operative pain and its treatment. The empirical part of this work contains results of a questionary survey taking place on standard wards of Nachod's hospital operational brunches.The investigation concerned in the intensity of pain after surgery, influencing factors, the monitoring of postoperative pain by medical staff and patients' satisfaction with the pain treatment. The thesis should contribute to the improvement of pain management and thus improve patients' satisfaction with the hospital care. 89
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Measurement of thin films properties by imaging spectroscopy and magnetooptical Kerr effect
Plšek, Radek ; Navrátil, Karel (referee) ; Spousta, Jiří (advisor)
This thesis is divided into three main sections that deal with optical and magnetic thin films properties and their measurements techniques. Principles of the spectroscopic reflectometry and measurements of optical properties are described in the first part. Results of imaging reflectometry are most important. This technique is based on in situ monitoring of optical properties of SiO2 thin films during etching over the area cca 10 × 13 mm2. In next section magnetic properties of thin films and new apparatus built on the Institute of Physical Engineering of BUT are shown. Magnetic properties were observed by longitudinal magneto-optical Kerr effect. The construction of the device is based on a light beam with rectilinear polarization reflected from magnetic material with turned polarization. For investigation of local magnetic properties of microstructures a microscope objective focusing laser beam on the sample is used. The last part of the thesis is aimed on improving of a spin valve structure Co/Cu/NiFe. This work was done within the frame of the Erasmus project in Laboratoire Louis Néel in Grenoble. The goal was to achieve the value of GMR (Giant Magnetoresistance) as high as possible by changing of deposition parameters. This value describes the rate of resistances in different mutual directions of magnetization in trilayers.
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Design and development of application for position monitoring
Kovář, Petr ; Šilhavý, Pavel (referee) ; Krajsa, Ondřej (advisor)
The aim of the master’s thesis was to implement in the C++ language a software solution of the localization of the mobile phone with Symbian OS in the GSM network. The intended purpose of this solution would be especially the phone localization in the case of its theft or loss. A familiarization with the development process of the Symbian platform and understanding the features of the Symbian version of the C++ language preceded the realization itself, because the Symbian C++ has an original style of the memory manipulation and error handling. The Symbian C++ basic principles and its features used in the implemented software are described in the second chapter of the text part, the first chapter deals with the history and version structuring of the Symbian OS. In the third part of the text is described the created software. The realized solution consists of three parts – server application PhoneLocServer for a mobile device, client application PhoneLocClient for a PC and the web-located part. The server was developed for the Symbian OS in the C++ language in the IDE Carbide.c++ and was tested in the S60 3rd edition SDK MR emulator and on the real device Nokia N73. It is a GUI-less application running in the background, which is run automatically after a smartphone start-up. It controls the incoming SMS over the socket listening and the messages addressed to itself processes before a user can notice them. The control messages body is comprised of a prefix, which identifies them, a password, a sending period value and a state to which application should change. After the receiving of the control SMS server verifies the SMS sender through the use of his telephone number and the password. It compares these values with the data stored for the given IMEI on the web server. If the verification succeeds, the server runs a timer with the period known from the control SMS and on the callback of this timer are transferred the data describing current phone location and state via HTTP protocol to the web server. The GSM localization method “Cell ID” is used for the location determination. After the client user asks for the start of loading the data, he must answer the password and the observed phone’s IMEI and he is verified through the use of the web server again. If the verification succeeds, the periodic download of the server data starts and from the first downloaded file is found out the upload period. Download then continues till the time the client detects the end of sending by the server part or till the client user stops the download himself. The client was developed in the C++ language in the C++ Builder environment. It requires a Windows OS and internet connection for its right function. The web server mediates communication between the server and the client, stores the data for user verification and makes possible the server-side upload by the help of a simple PHP script. In all the used web server directories is present the .htaccess file to improve its security, e.g. it denies the directory listing in a web browser.
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Monitoring of volatile substances in the fish
Vojáček, Filip ; Urbanová, Klára (advisor)
This Bachelor thesis deals with post-mortem biochemical processes in fish. The theoretical part is focused on describing the ongoing changes in fish and the production of volatile compounds in different species of fish during post mortem changes. Experimental part is focused on monitoring and chemical analysis of volatile compounds from fish under various storage conditions. The analysis is performed on the basis of gas chromatography with mass detector.
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Monitoring of ungulates during individual hunts and efficiency of this practise in hunting areas Blatno and Jesenice
Kučerová, Lenka ; Kušta, Tomáš (advisor) ; Divišová, Michaela (referee)
The aim of bachelor thesis was to evaluate the activity of ungulates, especially roe deer, wild boar and sika deer, depending on abiotic effects that influence these species every day. The observation was conducted in hunting grounds Blatno and Jesenice Kosobody in the time range of 4 years. During this monitoring period 359 of blind hunts were permformed, with the hunting succes in total of 57 individuals in both of the hunting grounds. The results suggest that neither temperature nor the cloudiness affected the game activity. The game activity is influenced mainly by its behaviour, which is among others related to the human presence.
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Environmental variables acquisition and evaluation
Ulrych, Vladislav ; Vasilenko, Alexandr (advisor)
The first part of thesis is devoted to the environment of the room in which is monitoring device intended - server room. There are description of calculating algorithms for proper sizing of cooling due to the heat. Further in this part is description of suitable senzors for monitoring device - physical principle, their proper use and meaning. Theoretical part also contains a list of several available ready commercial solutions of monitoring stations and their characteristics.
The second part is devoted to the assembly of monitoring device - physical build of hardware components, preparation s and connecting sensors, operating system installation, configuration and network preparation. The second part contains also instaling web server and configuration parts, that allows amek a web interface with presentation of measured physical quantities. Integration device with Simple Network Management Protocol (SNMP) for use with Zabbix monitoring system. Output from this work can be used for monitoring fundamental physical quantities in a small server room or in switch room.
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