In 2015 the term Progressive Web Application was coined to describe applications that are getting the advantage of all Progressive App features. Some of the essential features are offline support, app-like interface, secure connection, etc. Since then, case studies from PWA’s implementation showed optimistic promises for improving web page performance, time spent on site, user engagement, etc. The goal of this report is to analyze some of the effects of PWA. This work will investigate the browser compatibility of PWA’s features, compare and analyze performance and memory consumption effect of PWA’s features compared to Regular WebApp. Results showed a lot of the features of PWA are still not sup-ported by some major browsers. Performance benchmark showed that required https connection for PWA is slowing down all of the PWA’s performance metrics on the first visit. On a repeat visit, some of the PWA features like speed index is outperforming the Regular Web App. Memory consumption on PWA increased more than 2 times the size of RWA. The conclusion is that even if some features are not directly supported by browsers, they still might have workaround solutions. PWA is slower than regular web app if https on your web server is not optimized. Different browsers have different memory limitations for PWA caches. You should implement https and PWA features only if you have HTTP/2 support on your web server, otherwise, performance can decrease.

PURPOSE: This thesis intends to evaluate the factors which positively and negatively influence patient compliance to performing weekly home-based digital 6-minute-walk-tests (d6MWT) using a smartphone and smart watch. PROBLEM: Long term patient engagement in mobile health apps have proven to be a challenge to maintain. In this thesis, factors that influence patient engagement will be identified when it comes to retaining participants that are using the VascTrac mobile health research application. METHODS: Patient compliance will be calculated based on how many d6MWT are completed out of the expected total. The population is split into four levels of compliance groups from least compliant (0-25% compliance (Group A)) to most compliant (75.1-100% compliance (Group D)). “Open Walk” and survey data are collected and compared amongst these groups to see if there are any direct relationships that could be found. An “End of Study Survey” is also conducted to better understand the reasons behind differing compliance levels. RESULTS: The overall compliance level is 66.1% for all comers with half of the patients scoring above 80%. Patients with higher compliance tend to have a higher weekly “Open Walk” average (correlation coefficient = 0.3). The average of weekly “Open Walk” is 0.53 walks/week. CONCLUSION: Factors that negatively affect whether patients would be compliant to doing the weekly d6MWT are medical issues, technical difficulties, hospitalization, and lack of motivation. Being motivated and having a desire for self-improvement positively influences compliance levels. Decrease use of walking aids correlates to higher compliance and being smartphone naïve at beginning of study correlates to lower compliance. The other factors (age, co-morbidities, smoking habit, etc.) considered did not predict compliance levels.

Les systèmes d’exploitation utilisent très généralement une politique de « meilleur effort » (Best-effort) pour exécuter les applications. Tant que les ressources sont suffisantes, les applications s’exécutent normalement mais quand les ressources deviennent insuffisantes, des mécanismes de contrôle sont nécessaires pour continuer à obtenir des services de qualité acceptable. Cette thèse a pour objectif de gérer la QoS des applications distribuées. La première partie propose un middleware totalement décentralisé pour contrôler l’utilisation des ressources des applications distribuées. Cette approche se fonde sur une planification approximative et un schéma d’emprunt de ressources afin d’améliorer la QoS globale du système. Via ce schéma d’emprunt, chaque nœud construit localement une vue détaillée de la disponibilité des ressources dans le système. La présence da la connaissance de la disponibilité des ressources en local permet à chaque nœud de prendre localement des décisions et de planifier les tâches des applications. Pour un contrôle plus fin de l’exécution, la deuxième partie ajoute un support pour l’adaptation du comportement des applications. Le middleware utilise un modèle général des applications sous forme de graphe d’exécution décoré avec les besoins en ressources. Un chemin dans le graphe est une exécution possible de l’application avec une certaine utilité, et ce sont ces chemins qui fournissent les degrés de liberté dont le middleware a besoin pour adapter la consommation des ressources au contexte. Les applications coopèrent avec le middleware dans le processus de gestion de la QoS lors de l’admission puis durant toute l’exécution. Le middleware est le chef d’orchestre et c’est lui qui pilote et c’est lui qui pilote l’exécution des actions des applications (arcs dans le graphe) Pour valider notre approche, un prototype à base d’agents a été réalisé. Les résultats démontrent l’intérêt de notre approche. / Generally, Operating Systems control and execute applications based on a best effort policy. As long as resources are sufficient, applications are normally executed but when resources become scarce, control mechanisms (graceful degradation) are necessary to maintain acceptable QoS. This thesis aims to manage the QoS of distributed applications. The first part of the thesis proposes a fully decentralized middleware to control the use of resources of distributed applications. This approach is based on a resource borrowing schema and an approximate scheduling in order to improve the overall QoS provided by the system. Using this borrowing schema, each node locally constructs a comprehensive view of resources availability in the system. The local knowledge of resources availability makes it possible for each node to make decisions and to schedule the execution of the applications. To finely control execution, the second part of the thesis adds a support for behavior adaptation of applications. The middleware interprets a general model of applications as an execution graph enriched with resources requirements. Each application must be designed according to this model to be manageable by the middleware (intrusive approach). A path in the graph is a possible execution of application with a certain utility. These paths provide degrees of freedom needed by the middleware to adapt resource consumption to the context. During the QoS management process, applications cooperate with the middleware at admission and execution phase. The middleware guides and controls the execution of applications actions (edges in the execution graph). To validate our approach, a prototype based on agents has been implemented using JADE. The results show the interest of our approach.

The aim of this project was to explore the WebXR Device API to find out the extent of its usefulness for creating augmented reality (AR) applications, as well as determine whether it is a valid platform independent alternative to the frameworks ARKit and ARCore. Exper- iments were conducted to measure its precision (the ability to persistently maintain virtual objects relative to the real world), its battery consumption and its frame rate stability. The results from the experiments are fairly positive, with the exception of some outliers among the precision and frame rate measurements. However, a number vital features are miss- ing from the API, and in its current state it only runs on Android in a specific version of Google Chrome. Thus, it is concluded that the API has potential, but it needs further de- velopment before it can be used commercially and be seen as a serious alternative to ARKit and ARCore.

Este trabalho insere-se no contexto teórico da relação entre direito e economia, mais precisamente na relação entre conhecimento econômico e direito da concorrência. O caráter interdisciplinar deste ramo do direito permite que sejam integrados a sua aplicação conceitos econômicos. Isto acontece com o controle de atos de concentração. Na apreciação de concentrações, a eficiência é utilizada como elemento capaz de atribuir licitude ao ato, isto é, possibilita sua aprovação. Entretanto, a eficiência pode ser conceituada de diversas formas. Esta flexibilidade pode ser entendida como uma indeterminação do termo, demandando a construção de seu sentido para a aplicação. Este estudo propõe-se a encontrar um conceito de eficiência na aplicação do direito da concorrência pelo CADE (Conselho Administrativo de Defesa Econômica) em atos de concentração. Para tanto, foram recolhidos julgados do período de 1994 a 2014 que resultaram na imposição de uma restrição ou mesmo na reprovação. Na análise das avaliações das eficiências realizadas pela entidade, percebeu-se a preocupação em definir características comuns relativas à eficiência que seriam importantes para sua avaliação, e não em conceituar tipos de eficiência. Evidencia-se, então, uma relação forte entre direito e economia em razão do desenvolvimento de orientações para a interpretação de um conceito econômico, no caso a eficiência, voltada à aplicação do direito da concorrência. / Ce travail s\'insère dans le contexte théorique de la relation entre le droit e l\'économie, plus précisément dans la relation entre la connaissance économique et le droit de la concurrence. Le caractère interdisciplinaire de cette division du droit permet l\'intégration de concepts économiques à son application. Cela se produit avec le contrôle des opérations de concentration. Lors de l\'appréciation des concentrations, l\'efficacité est utilisée comme un élément capable d\'attribuer de la licéité à l\'opération, c\'est-à-dire, de permettre son approbation. Pourtant, l\'efficacité peut être conceptualisée sous différentes formes. Cette flexibilité peut être perçue comme une indétermination du terme demandant la construction de son sens pour son application. Cette étude a pour but de déterminer un concept de l\'efficacité dans l\'application du droit de la concurrence par le CADE (Conseil Administratif de Défense Économique) dans les opérations de concentration. A cet effet, des décisions ont étés recueillies sur la période de 1994 à 2014, qui ont résulté à l\'imposition dune restriction ou même à la réprobation. L\'analyse des évaluations des efficacités, effectuées par l\'entité, a mis à jour la préoccupation d\'établir les caractéristiques communes relatives à l\'efficacité qui seraient importantes pour son évaluation, et non de conceptualiser les types d\'efficacité. Une relation forte entre le droit et l\'économie tournée vers l\'application du droit de la concurrence apparait donc évidente en raison du développement d\'orientations visant l\'interprétation d\'un concept économique, dans le cas présent l\'efficacité.

Excel offers great flexibility and allows non-programmers to create complex functionality – but at the same time, it can become very nested with cells pointing to other cells, especially if there have been many changes over a more extended period. This has happened to ICS – a small company who has its focus on calibration, out of an array of different things relating to material testing. The system they have for field calibrations today have been overly complicated and hard to maintain and consists of multiple Excel spreadsheets. The conclusion has been that a new system needs to be developed – but question how, remains. By creating a prototype using modern web-technologies, this study has evaluated if a web application can meet the specific functional requirements ICS have and if it is a suitable solution for a new system. The prototype was put under manual user test, and the results find that the prototype meets all the requirements, meaning that a webapplication could work as a replacement. During the user tests, this study has also evaluated the differences in learnability and efficiency of users, between the static user interface of the current Excel-based system and the dynamic user interface of the web-based prototype. The users have performed a calibration with both systems, and parameters such as time to completion or number of errors made have been recorded. By comparing the test results from both systems, this study has concluded that a dynamic user interface is more likely to improve learnability for novice users, but have a low impact on efficiency for expert users.

<div>With the development of web-based technologies, online evaluation systems have been replacing paper-based ones in various domains at a fast pace because of their many advantages such as easy administration, high efficiency, and eco-friendliness. This study aims at developing an online thesis evaluation system which can act as a substitute to the paper-based one being currently used in Department of Computer Graphics Technology at Purdue. It contains two parts: the development of the online thesis evaluation system, and the assessment of the system. The system was developed using Angular as the client-side technology, PHP as the server-side technology, MySQL as the database management system, and D3 for the data visualization. Bootstrap was also used to simply format the table and forms. The developed system features easy administration, easy to do evaluations, visual reports of evaluation results and so on. Surveys were used to assess the system. The experimental results indicate this system has relatively good performance, usability, and reliability. However, further development and assessment are in need to make it a better substitute of the current paper-based evaluation system.<br></div>

O herbicida deve ter a capacidade de controlar as plantas daninhas sem reduzir a produtividade e a qualidade da matéria-prima. Todavia, a tolerância da cana-de-açúcar pode variar com o herbicida, a dose desse produto, o genótipo da variedade, a época de aplicação (semi-seca, seca, semi-úmida e úmida), ambientes de produção, o estádio fenológico da cultura, dentre outros fatores. Visando o melhor entendimento do comportamento da cana-de-açúcar a aplicações do herbicida diuron+hexazinone+sulfometuron-methyl, avaliou-se a seletividade em diferentes estádios de desenvolvimento, em condições de campo, em casa de vegetação, e em laboratório. No campo, com início em setembro de 2013, as aplicações deste herbicida foram feitas em pré-emergência, esporão, 2 a 3 folhas e 5 a 6 folhas, comparando com o desempenho do herbicida amicarbazone, nas mesmas épocas, em canavial de segundo corte, onde avaliou-se fitotoxicidade, os parâmetros tecnológicos (fibra, pol, brix e ATR) e a produtividade. Constatou-se que mesmo com índices de fitotoxicidade altos nos diferentes estádios de desenvolvimento até 90 DAA, a produtividade não foi prejudicada a níveis significativos, bem como os parâmetros tecnológicos, quando comparados a testemunha. Na casa de vegetação, foi avaliado a seletividade do herbicida diuron+hexazinone+sulfometuron-methyl nos mesmos estádios de desenvolvimento avaliados em campo, nas variedades CTC 15, B86-7515, BR85-5536 e RB92-579. Observou-se diferenças significativas entre as variedades na variável altura em uma mesma época de aplicação, porém não refletiu na massa de matéria seca da parte aérea, a qual manteve-se semelhante entre os tratamentos. Para entendimento da fisiologia deste herbicida em cana-de-açúcar, avaliou-se a absorção e translocação ao longo do tempo, após sua aplicação nas fases de 2 a 3 e 5 a 6 folhas, onde apesar de serem detectadas diferenças significativas no quesito fitotoxicidade em ensaio de campo preliminar, tal acontecimento não pode ser justificado por diferenças no parâmetro absorção, conforme resultados do estudo. / The herbicide should be capable of controlling weeds without reducing productivity and quality of the raw material. However, the tolerance of sugarcane can vary with the herbicide, the dose of this product, the variety genotype, timing of application (semi-dry, dry, semi-wet and wet), production environments, the stadium phenological culture, among other factors. Aimed at better understanding the behavior of sugarcane to the herbicide diuron + hexazinone applications + sulfometuron-methyl, evaluated the selectivity at different stages of development in field conditions in the greenhouse and in the laboratory. In the field, starting in September 2013, the applications of this herbicide were made in pre-emergence, spur, 2-3 leaves and 5-6 leaves, compared to the performance of amicarbazone herbicide, at the same times, in the second cut cane field where phytotoxicity was evaluated, the technological parameters (fiber, pol, Brix and ATR) and productivity. It was found that with high phytotoxicity rates in different stages of development up to 90 DAA, productivity was not affected at significant levels, as well as technological parameters compared the witness. In the greenhouse, the selectivity of the herbicide diuron + hexazinone was rated + sulfometuron-methyl the same developmental stages evaluated in the field, in varieties CTC 15, RB86-7515, BR85-5536 and RB92-579. There were statistically significant differences between varieties in the variable height in the same time of application, but not reflected in the dry matter of the shoot, which remained similar between treatments. In order to understand the physiology of this herbicide in sugarcane, studies wih absorption and translocation was carried out over time, after application in the stages of 2 to 3 and 5 to 6 leaves, which despite being detected significant differences in field test for phytotoxicity such an event can not be justified by differences in absorption parameter, according to study results.

Esta dissertação tem como objetivo salientar a utilidade e importância de cálculos matriciais no ensino médio. Para tanto, foram estudados alguns tópicos que descrevem situações que necessitam de recursos gerados por operações matriciais. Foi observado que esses tópicos apresentam situações que evidenciam a utilidade da multiplicação de matrizes não somente no desenvolvimento teórico, mas também nas aplicações de matrizes, e têm potencial para serem abordados no ensino médio / The aim is this work is to stress on the use of algebraic operations with matrices in the mathematics teaching for secondary school students. For this purpose, we studied some topics that require algebraic operations with matrices. It was observed that these topics reveal circumstances in which the matrix multiplication is not only useful in the theoretical development but also in the applications. In addition, the studied showed that these themes have potential to be considered in the secondary school

O objetivo do trabalho foi o de comparar a eficiência de aplicação de agroquímicos na cultura da soja utilizando diferentes pontas de pulverização para aplicações terrestres em alta velocidade. Foram avaliadas as pontas AXI 110 04 na velocidade de 15 km.h-1 (testemunha), APE Cinza, AXI 110 08, TD Hispeed 110 06 e AXI TWIN 120 06, todos na velocidade de deslocamento de 35 km.h-1. O volume de aplicação foi fixado em 120 L.ha-1. A eficiência de aplicação foi avaliada por dois métodos: Análise do percentual de cobertura utilizando marcador fluorescente e luz ultravioleta e análise de depósito através da recuperação e quantificação do corante azul brilhante FD&C N°1 por espectrofotometria. Ambas as analises foram feitas em amostras retiradas de três partes da planta: Superior, média e inferior. As pontas de pulverização mostraram padrões de cobertura e depósito diferenciados, de modo que na parte superior da planta, a cobertura foi favorecida por gotas mais finas e o depósito melhorado pelo uso de gotas médias. Nas demais partes da planta não houve diferença estatística entre os tratamentos tanto para cobertura quanto para depósito. A velocidade de deslocamento não interferiu na eficiência de aplicação para pontas com mesmo padrão de gota, permitindo o aumento da capacidade efetiva do pulverizador sem diminuição na qualidade da aplicação. / The aim of this study was to compare the efficiency of agrochemical application on soybean crop using different types of spray nozzles for ground applications in high travel speed. It was evaluated the nozzles AXI 110 04 with ground speed of 15 km.h-1 (reference), APE Grey, AXI 110 08, TD Hispeed 110 06 and AXI TWIN 120 06, all using travel speed of 35 km.h-1. The volume rate was fixed in 120L.ha-1. The application efficiency was evaluated by two different methods: Analysis of coverage area using fluorescent dye tracer and UV light and analysis of deposits through the recovery and quantification of bright blue tracer FD&C N°1 by Spectrophotometry. Both analysis were done in samples collected from three parts of the plant: Top, medium and bottom. The spray nozzles showed differences in coverage and deposit pattern, so in the top of the plant, the coverage was increased with smaller droplets and the deposit was increased with medium droplets. In the other parts of the plant, there was no statistical difference between the treatments both for coverage and deposit. The travel speed did not influence the application efficiency for droplet with the same droplet pattern, so it is possible to increase the effective capacity of the sprayer without decreasing the application quality.