The main topic of this thesis is the practical use of OpenCL at AVG company. AVG is looking for ways to decrease hardware requirement of their security product and also to decrease computation time of some algorithms. Using OpenCL is one way to achieve this requirement. Significant part of this thesis deals with optimization strategies for AMD and NVIDIA graphics cards as they are most common cards among users. Practical part of the thesis describes parallelization of two algorithms, their analysis and implementation. After that, the obtained results are presented and cases in which the use of OpenCL is beneficial are identified. As a part of implementation, library containing various utility functions which can aid programmers to implement OpenCL based code was developed.

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No. of bitstreams: 1 arruda_ll_me_bot.pdf: 1563945 bytes, checksum: 3e92fef3abbd0810b47421d6b19262be (MD5) Previous issue date: 2017-09-01 / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Pesquisas com uso de fitorreguladores no abacaxizeiro que visem inibir de maneira significativa a diferenciação floral natural desta frutífera é de grande interesse comercial pelos empresários rurais, pois irá permitir o controle das épocas de produção dos frutos com expressiva redução de custos nas práticas culturais, inerentes a desuniformidade de florescimento e colheita. Frente ao exposto, objetivou-se com este trabalho avaliar o efeito de doses e número de aplicações de Cloridrato de Aviglicina na inibição da diferenciação floral natural do abacaxizeiro ‘Smooth Cayenne’. O trabalho foi realizado em propriedade particular de produção de abacaxi, localizada no município de Bauru, estado de São Paulo, com delineamento experimental em blocos casualizados em esquema fatorial 4 x 3, com quatro repetições, sendo o primeiro fator correspondente as concentrações de Cloridrato de Aviglicina – AVG (ReTain™) (0, 25, 50 e 100 mg L-1 do i.a) e o segundo fator equivalente aos números de aplicações do AVG (2, 4 e 6 pulverizações), no período que antecede o processo de diferenciação floral natural na região de Bauru – SP, entre os meses de abril e maio. Para a avaliação do período vegetativo e reprodutivo após 6 meses do plantio, foram coletados os dados da folha “D” a cada 60 dias, contemplando sua área foliar (cm²), massa fresca e seca (g) e comprimento (cm). Para a avaliação do florescimento natural foi aferido o percentual de inibição da diferenciação floral natural, utilizando 40 plantas por parcela experimental. Na fase de pós-colheita foram avaliados os seguintes atributos físicos dos frutos: comprimento (cm); diâmetro (cm); formato; massa fresca (kg) e da coroa (g); grau de transluscência; sólidos solúveis (Brix); acidez titulável (g ácido cítrico 100 mL-1); relação SS/AT (ratio) e o pH. Posteriormente a realização das análises de qualidade dos frutos foram estimados os coeficientes de correlação linear de Pearson, entre as doses do Cloridrato de Aviglicina e os atributos estudados. Com base nos principais resultados, foi possível inferir que na região onde foi conduzido o referido estudo, o início do processo de diferenciação floral natural das plantas de abacaxizeiro ‘Smooth Cayenne’ foi prolongado. Porém, não houve efeito do número de aplicações do Cloridrato de Aviglicina no controle do florescimento, com a concentração de 95,9 mg L-1 foi mais eficiente no controle do florescimento natural. Os maiores teores de sólidos solúveis e pH foram obtidos nas concentrações de AVG de 22 e 57,8 mg L-1 , respectivamente, o aumento na concentração deste produto reduziu os valores destes atributos e no que diz respeito a análise de correlação, há efeito positivo da acidez dos frutos com o acréscimo das doses de AVG. O emprego de seis aplicações de AVG promove maior massa fresca da folha “D”. / Research with use of fitorreguladores in pineapple aimed at inhibiting significantly the natural floral differentiation of this fruitful is of great commercial interest by rural entrepreneurs, for it will allow the control of seasons of production of fruits with expressive reduction of costs in cultural practices, inherent in the ununiformity of flowering and harvesting. In light of the above, the objective of this work was to evaluate the effect of doses and number of applications of Aviglicine Hydrochloride on the inhibition of the natural floral differentiation of 'Smooth Cayenne' pineapple. The work was carried out in a commercial area of pineapple, located in the city of Bauru, state of São Paulo, with a randomized complete block design in a 4 x 3 factorial scheme, with four replications, the first factor being Aviglucine Hydrochloride - AVG (ReTain ™) (0, 25, 50 and 100 mg L -1) and the second factor equivalent to AVG application numbers (2, 4 and 6 sprays) in the period prior to the process of natural floral differentiation In the region of Bauru - SP, between the months of April and May. For the evaluation of the vegetative and reproductive period after 6 months of planting, leaf D data were collected every 60 days, considering its leaf area (cm²), fresh and dry mass (g), length (cm). For the evaluation of the natural flowering the percentage of inhibition of the natural floral differentiation was evaluated, using 40 plants per experimental plot. In the post-harvest phase the following physical attributes of the fruits were evaluated: length (cm); Fruit diameter (cm); Fruit format; Fresh fruit mass (kg) and crown (g); Degree of transluscence; Soluble solids (Brix); Titratable acidity (g citric acid 100 mL-1); SS / AT ratio and fruit pH. Subsequent to the performance of fruit quality analyzes, Pearson's linear correlation coefficients between the Aviglicine Hydrochloride doses and the attributes studied were estimated. Based on the main results, it was possible to infer that in the region where the study was conducted, the beginning of the natural floral differentiation process of the 'Smooth Cayenne' pineapple plants was prolonged. However, there was no effect of the number of applications of Aviglicine Hydrochloride in the control of flowering, with the concentration of 95.9 mg L-1 was more efficient in the control of natural flowering. The highest soluble solids and pH contents were obtained in the AVG concentrations of 22 and 57.8 mg L-1, respectively, the increase in the concentration of this product reduced the values of these attributes and, as far as correlation analysis is concerned, there is an effect of the acidity of the fruits with the increase of AVG doses. The use of six applications of AVG promotes greater fresh mass of leaf "D".

The diploma paper have two part. The first part describe the trade mark and methods of the valuation. The second part includes valuation the trade mark of AVG Technologies, s.r.o.

This document describes the design and implementation of a tool which allows for evaluation and visualisation of statistical data gathered from users of the AVG Admin Console application. The document describes collected statistical data including their localization and storing all the data in the database is discussed. The application was tested on real statistical data and possible improvements based on the results are proposed.

This thesis deals with venture capital and its impact on business activities. Its goal is to prove that properly executed venture capital investment could be beneficial not only for the recipient but also for the investor. In the theoretical part, the thesis deals with analysis of venture capital, its support in the Czech Republic and its impact on internationalization of business activities. In the practical part, there is an example how venture capital could be a suitable support for company's development in foreign markets.

A floating island was generated using two height maps, one for the bottom of the island and one for the top. Vertices of the island was displaced in the Y axis using an algorithm called Simplex noise. To avoid texture stretching that appears when displacing the vertices an algorithm called “tri planar projection” was implemented. After the vertices had been displaced the normal was smoothed using “normal smoothing”. An algorithm here called “the AVG algorithm” is created to smooth jig sawed edges around the island that appears after the island has been generated. The results of the AVG algorithm is judged by a group of 26 participants to see if any jig sawed edges are perceived. They answered a survey containing seven pictures, with each picture having one more iteration of the AVG algorithm then the last, starting from 0 iterations. Five iterations proved to be the best.

Malicious software spreads really fast in the age of the Internet and it harms users and their data. Therefore, it is necessary to improve methods of how we deal with its analysis, so we can protect potential victims. This thesis deals with design and implementation of system for generating patterns out of executable files in cooperation with AVG Technologies. The goal of this work is to create a tool that generates a detection pattern from the set of binary files. This work further proposes new types of analyses for extraction of information out of executable files. Designed and implemented system is used in practice for analysis of new malicious code and it is integrated into the clustering system.

This thesis deals with a decompilation tool which converts low-level binary code to a high-level representation. This tool is being developed by AVG Technologies. The aim of this work is to design and implement a method for code structuring in the decompiler back-end. The designed method works by traversing the control-flow graph with matching of predefined patterns. It is not always possible to structure code using conditional statements and loops. Sometimes also goto statements must be used. The implemented solution is compared with the original solution in the decompiler. According to the results the new solution is faster, better tested, but in greater number of test cases generates invalid code. From the viewpoint of structuring the results are different and sometimes the code is structured better, but sometimes worse.

<p>The expression of <em>lin-11</em> is regulated by enhancers located upstream from, as well as within, <em>lin-11</em> intronic sequences. Multiple regulatory inputs control the spatiotemporal expression pattern of <em>lin-11</em>. To better understand that process, we have investigated these regulatory enhancers by dissecting two of the biggest intronic sequences of <em>lin-11</em>: intron 3 and intron 7. Using microscopy, we show that the expression of intron 3 is required in ten head sensory neurons and that the expression of intron 7 is required in two head neurons. The truncation of intron 7 revealed that its regulatory sequence may be located within its narrow 98 base pairs (bp) region. We used bioinformatics to predict which putative transcription factor(s) may regulate AVG expression. Using a hypersensitive RNAi mutant strain, <em>eri-1; lin-15b,</em> we tested forty putative transcription factors and quantitated the number of animals in which the molecular marker <em>lin-11::GFP</em> expression is knockdown in AVG interneurons.</p> <p>Using electrotactic behavioral analysis we show that the speed of<em> lin-11</em> null allele, n389, is reduced by almost 50%, when compared to that of the wildtype animals, due to amphid sensory neuronal deformities. We determine which conserved domains of <em>lin-11</em> are required for the proper development of the neuronal and vulval cells via microinjection rescue experiments.</p> <p>We sequenced eleven <em>lin-11</em> alleles to determine which conserved domains are affected and the role of each of these domains in the development of vulval and neuronal cells. Our findings suggest that all <em>lin-11</em> conserved domains are required for proper vulval cell differentiation as well as for proper development of the amphid sensory neurons. Finally, using tissue specific markers we label vulval cells in <em>lin-11</em> mutants to show that those cells are defective, as judged by the lack of fate-specific markers in the vulval cells.</p> / Master of Biological Science (MBioSci)

This master thesis discourses upon problems with automatic building and testing of network security solution AVG for Linux/FreeBSD on platforms GNU/Linux and FreeBSD. This work introduces AVG for Linux/FreeBSD and its usage.  Compilation and link are discussed from the source code to the distribution packages, which users can install on your computer. Also, the repository term was introduced, containing the information about their creation and usage. The part about AVG for Linux/FreeBSD testing discusses suitable  automatic testing proposals for this product and implementation of the best solutions. In the practical part, the testing tool was developed. AVG for Linux/FreeBSD was tested using the test tool and implemented test set.