The master thesis fouses on the practical use of project management methods and project proposal with the aim to propose a new content strategy for the content website of the company. The first part deals with the theoretical background of the project management, in the second part the current state of the company is analyzed. In the last part of the thesis the project proposal itself is processed.

Purpose of my master’s thesis is an initial analysis of the current status of the selected company, which follows the basic theoretical background of the issue. Essential part of thesis is developing draft of backup and archive system in a small business environment, which will be applied in practice with respect to the maximum economic and qualitative aspects of the system.

This thesis introduces a new chaos-based Advanced Encryption Standard (AES). The AES is a well-known encryption algorithm that was standardized by U.S National Institute of Standard and Technology (NIST) in 2001. The thesis investigates and explores the behavior of the AES algorithm by replacing two of its original modules, namely the S-Box and the Key Schedule, with two other chaos- based modules. Three chaos systems are considered in designing the new modules which are Lorenz system with multiplication nonlinearity, Chen system with sign modules nonlinearity, and 1D multiscroll system with stair case nonlinearity. The three systems are evaluated on their sensitivity to initial conditions and as Pseudo Random Number Generators (PRNG) after applying a post-processing technique to their output then performing NIST SP. 800-22 statistical tests. The thesis presents a hardware implementation of dynamic S-Boxes for AES that are populated using the three chaos systems. Moreover, a full MATLAB package to analyze the chaos generated S-Boxes based on graphical analysis, Walsh-Hadamard spectrum analysis, and image encryption analysis is developed. Although these S-Boxes are dynamic, meaning they are regenerated whenever the encryption key is changed, the analysis results show that such S-Boxes exhibit good properties like the Strict Avalanche Criterion (SAC) and the nonlinearity and in the application of image encryption. Furthermore, the thesis presents a new Lorenz-chaos-based key expansion for the AES. Many researchers have pointed out that there are some defects in the original key expansion of AES and thus have motivated such chaos-based key expansion proposal. The new proposed key schedule is analyzed and assessed in terms of confusion and diffusion by performing the frequency and SAC test respectively. The obtained results show that the new proposed design is more secure than the original AES key schedule and other proposed designs in the literature. The proposed design is then enhanced to increase the operating speed using the divide- and-conquer concept. Such enhancement, did not only make the AES algorithm more secure, but also enabled the AES to be faster, as it can now operate on higher frequencies, and more area-efficient.

Internal erosion often occurs when seepage flow is concentrated into a small, unprotected opening. One such example is where sandy soil is eroded through a defect in an overlying clay layer, resulting in a sand boil in the process. The erosion initiates through the heave and backward piping mechanisms and continues beneath the clay layer through the piping process, forming a pipe that progresses toward the source of the seepage. The initiation of erosion at the seepage flow concentration is a complex mechanism involving a number of hydraulic and soil mechanics principles, including: flow concentration, soil arching, heave, detachment of soil grains, and transportation of soil grains. A laboratory testing program is being performed to investigate the mechanisms of erosion into a concentrated, unprotected exit. The study builds upon previous research on the mechanisms of piping initiation performed at Utah State University and uses a similar apparatus. A number of different soils representing a range of grain size, grain shape, and gradations are being forced to erode into a range of constricted seepage exits. The exit is fixed with a riser pipe to model the upward transport of eroding soils. The results are compared with axisymmetric finite element analyses in order to develop a better understanding of the initiation process for backward erosion piping.

Children with autism often engage in repetitive behaviors and may not engage appropriately with leisure activities. Visual activity schedules are an effective way to promote independence and teach appropriate task engagement. Previous researchers have found that activity schedules are not only effective in teaching a range of skills, but also have been shown to reduce problem behavior. Paper-based activity schedules, while inexpensive and fairly easy to prepare, can be cumbersome. Socially, activity schedule books may also be stigmatizing. This study investigated the effectiveness of using an iPad to teach visual activity schedule following with preschoolers with autism. Findings from the current study add to previous research showing that technology-based activity schedules are an effective way to teach young children to engage in leisure activities independently. We also evaluated participants’ preferences for the iPad-based schedule versus the binder-based schedule and found that the iPad-based schedule was preferred for two of three participants.

Students who receive special education services in resource classroom settings often engage in low levels of on-task behavior during independent work time. Given the independent work demands in middle school classrooms, it is crucial for students who receive services in a resource classroom to engage in high levels of on-task behavior. The researchers examined the effects of activity schedules on on-task behavior, on-schedule behavior, and percentage of work problems correct in four middle school students receiving special education services in a resource math classroom. Results of the study demonstrate that on-task and on-schedule behavior increased for all participants following the implementation of the activity schedule in both math and language arts classroom settings. Both students and teachers indicated that they liked the intervention and the activity schedule improved on-task behavior. Results of this study extend the use of activity schedules to a novel setting and participant population.

Det här examensarbetet har utförts åt företaget SSM där syftet var att standardisera deras tidsplaner och arbetssätt kring planering i produktionen.   Detta arbete har grundat sig på analys av några av SSM:s tidsplaner inom produktion, där dessa har granskats in i minsta detalj. Tre av sex projekt har studerats djupare och författarna har sedan gjort egna standardmallar som baserats på dessa. Utöver detta har även intervjuer/möten hållits med tidsplanerare både inom företaget men även utanför.   Dessa metoder resulterade i slutsatsen att alla platschefer på SSM samt personal på projekteringssidan bör använda sig utav Vico Office i framtiden för att en standardisering av tidsplanerna ska ske. Detta då programmet sparar återanvändbar information från varje projekt som genomförts, vilket på så sätt kan nyttjas i kommande projekt. I programmet finns olika verktyg för hur man väljer att presentera tidsplanen vilka framgår i rapporten.   Efter att ha provat på programmets olika funktioner rekommenderas att företaget använder sig utav det i framtiden då de kan kombinera olika planeringsverktyg samt koppla ihop modellen med bl.a. kostnader, mängder, resurser och tid. Anpassade standardmallar har tagits fram för att förenkla och standardisera tidsplaneringen enligt SSM:s arbetsprocesser. / This thesis has been carried out for the company SSM where the purpose was to standardize their time schedules and also their working methods regarding planning in production.   To achieve this, the thesis has mostly been based on analysis of some of SSM's time schedules in production, where these have been examined in the smallest detail. Three out of six projects have been studied in more depth and the authors have then made their own standard templates based on these. In addition, interviews/meetings have also been held with time planners both within, but also outside the company.   These methods resulted in conclusion that all site managers at SSM and personnel in the design department should use Vico Office in the future in order to standardize the time schedules. This because the program saves reusable information from each project that has been implemented, which can be used in future projects. The program contains various tools, which are stated in the report that allows the user to choose how to present the time schedule.   After trying the different functions of the program, the recommendation is that the company use Vico in the future as they can combine different planning tools and connect the BIM-model with e.g. costs, quantities, resources and time. Custom standard templates have been developed to simplify and standardize time scheduling according to SSM's work processes.

Peekaboo! Where is play? is a qualitative study that explores the extent kindergarten teachers implement play in light of increasing academic expectations. The increase in academics in young children’s schooling and the benefits of play have been well-documented. Unlike most of the research on play, this study was conducted in a town in the northeast region of the United States. Through questionnaires, interviews, and the kindergarten classroom schedules as the primary data collection of this case study, twenty-two active kindergarten teachers agreed to participate. The study centralized around three guiding research questions: 1) How have kindergarten teachers designed times for play, if at all? 2) How do kindergarten teachers’ views on play inform their practice? 3) What are the resources necessary for kindergarten teachers to maximize the educational benefits of play? An analysis of online questionnaires, weekly class schedules, and follow-up interviews allow the researcher to get an insight into the participants’ practice. The significant findings were grounded in the constructivist theory of learning. All the participants claimed to have adopted a learning-through-play methodology. They chose to implement time for play, providing a rich learning environment where students could interact cognitively and socially. Since the participants believed play to be an organic part of development and a tool for learning, teachers switched to a facilitator role during play. At the same time, children were led by their curiosity and interest. Participants also included elements of play in their teacher-directed lessons. However, they needed the district's unwavering support in professional development, financial resources, collegial assistance, and teacher input to maximize and sustain the benefits of play in their classroom. / 2025-05-16T00:00:00Z

The events of September 11,2001 followed by the oil price hike and the economic crisis of 2008, have lead to a drop in the demand for air travel. Airlines have attempted to return to profitability by cutting service in certain unattractive routes and airports. Simultaneously, delays and excess demand at a few major hubs have lead to airline introducing service at reliever airports. This dissertation attempts to capture the changes in the airline network by utilizing a supply-demand framework. / Ph. D.

The thesis aimed to investigate the relationship between influence over scheduling and schedule satisfaction with three central factors within the psychosocial work environment within the elder care sector: quality of work, work-life conflict and intention to quit. The JD-R model was used as theoretical approach as it provides a framework of the relationship between different work factors, characteristics, health and wellbeing, as well as a context to the different factors in the scope of the thesis. A survey was distributed among workers within the elder care sector in collaboration with a union (n=1202) and statistical analyses were made, establishing correlations between the different variables with the use of Pearson Correlation Coefficient as well as multiple linear regression analyses. The results revealed that higher degrees of influence over scheduling were associated with higher degrees of schedule satisfaction, and both variables were positively related with quality of work and negatively related with work-life conflict and intention to quit. To conclude, relatively strong relationships were found between the factors indicating that influence on scheduling and specifically schedule satisfaction are important factors associated with quality of work, work-life conflict and intention to quit within Swedish elder care.