Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 5 uppsatser.

Purpose The purpose of this thesis is to set up a closed-loop supply chain model for B2C online subscription box retailers and to develop a business case evaluating the model’s sustainability. Method This explorative thesis has an abductive research approach. Multiple-case studies are conducted and data from four cases and an expert are collected by conducting interviews. The research contains both qualitative and quantitative data. Findings A closed-loop SC model is created with regards to transport packaging. The model suggests that once the package is received by the consumer it can be returned in an empty state. After being cleaned it should be reused by the 3PL. The model’s sustainability is evaluated by developing a business case. Sustainable performance measures with regards to economic, social and environmental practice are assembled. The model enhances general social performance and environmental performance. Economic performance is mostly positively influenced. Options for cost savings in order to improve the economic performance of the model are suggested by the researchers. Practical implications The work provides businesses within the online B2C subscription box retail with a model for a possible closed-loop supply chain with regards to transport packaging. The business case for sustainability can be applied as a guideline to evaluate the model or similar ones. Researchers give suggestions on adapting packaging to enhance economic performance. Societal implications This thesis points out possible environmental and social benefits that may be achieved by a closedloop supply chain model. Besides waste and emission reduction, social performance such as employee motivation is positively influenced. Theoretical implications The thesis provides a model developed from theory and empirical data. The model does not only have practical implementations but also complements theory where a gap has earlier been identified. Through the business case for sustainability researchers contribute to theory since literature is scarce.

The quality and origin of food are topics that are currently widely discussed not only in Czech society, but worldwide. High-quality food andmeals, environmental protection, and especially the preservation of regional differences are the key ideas of a movement called Slow Food. The main idea of this movement is the perception of gastronomy as a phenomenon that supports a national and local autonomy, environmental protection, and diningculture. The concept of Slow Food also consists of thoughtful and responsible choice of food by consumersand the preparation ofhigh-quality meals at home as well as in restaurants. This thesis describes the history and basic ideas of the Slow Food organization and focuses on the current impact of this movement in the Czech Republic. The thesis describes the Slow Food movement's stances oncurrent topics of agricultural policies, such as the common agricultural policy of the European Union, biodiversity and genetically modified crops. The thesis also describesa methodology of evaluating a survey that was conducted by the author for the purposes of this thesis. The survey aimed to confirm or to refute concrete hypotheses that were related to the market and business potential of agricultural products, foods and meals that fulfill the requirementsof the Slow Food movementin the Czech Republic.At the same time this thesis also compares prices of Slow Food products with standard food distributed by the international retail chains.

This Master´s thesis deals with construction design of break system of the tractor Zetor Forterra HSX. At the beginning, there is an overview of different possibilities breaking system from other world´s producers of tractors. Afterwards there is constructional working from selection variant of suspension to final project. In this case the thesis contains required calculations of the whole device. Thesis also contains the stress and strain analysis of selected components of construction using a numerical approach of finite element method and drawing documentation of the selected components.

En Amérique du Nord, la superficie des monocultures utilisatrices d'intrants tels que des fertilisants et des pesticides couvre aujourd'hui 85% des surfaces agricoles et autant de pâturages ont disparu en 20 ans afin de répondre aux besoins de l'homme. Ces changements d'usage des terres ont profondément transformé le paysage et altéré la biodiversité des agro-écosystèmes. Parmi les espèces d'oiseaux champêtres, les insectivores aériens tel l'Hirondelle bicolore, Tachycineta bicolor, ici étudiée, présente un fort taux de déclin des effectifs, reflétant probablement une dégradation des agro-écosystèmes. Les mécanismes biologiques à l'origine de ce déclin sont encore méconnus ainsi que les patrons de dispersion chez les passereaux migrateurs. Le présent travail vise à étudier les effets environnementaux sur les traits individuels (survie et succès reproducteur) et la dispersion de reproduction (probabilité de disperser et taux d'occupation des sites de reproduction) chez l'Hirondelle bicolore. Pour ce faire, 2200 reproducteurs et 8000 oisillons ont été bagués entre 2004 et 2013 et suivis en reproduction pendant 10 ans sur une aire d'étude au Sud du Québec, laquelle est composée de 40 sites et couvre une mosaïque de paysages agricoles hétérogènes. Le développement d'un nouveau modèle de capture-marquage-recapture, flexible d'utilisation, a permis de réduire les biais d'estimation des probabilités de survie et de dispersion de l'espèce. Cette approche a permis de tester l'effet de plusieurs variables en lien avec la qualité de l'habitat, l'information publique et les caractéristiques individuelles sur la variabilité des paramètres de dispersion, de survie et de succès reproducteur au niveau individuel. Les milieux cultivés intensivement associés à la présence du Moineau domestique, Passer domesticus, un compétiteur pour les cavités de reproduction, diminuent jusqu'à 19% la survie des mâles. Les femelles sont quant à elles affectées par le coût de la reproduction, qui est d'autant plus grand en milieu intensif qu'il y a présence de moineaux et une disponibilité moindre en ressources alimentaires. Pour autant, la décision de disperser n'est pas affectée par les conditions environnementales que ce soit par la présence de compétiteurs ou la qualité du milieu, et ne dépasse pas les 4% chez les mâles. Les femelles dispersant jusqu'à 14 fois plus s'appuient sur leur expérience personnelle pour décider de disperser. Un échec de reproduction augmente jusqu'à 7 fois la probabilité de disperser et pour la première fois chez une espèce à courte durée de vie, nous montrons que la probabilité de disperser est augmentée l'année suivant une première dispersion. Ces patrons de dispersion sont stables dans le temps. La dispersion apparait donc comme un processus coûteux, comparé à la fidélité au site, qui apparaît comme un phénotype minoritaire dans la population. Elle répond à des conditions défavorables de reproduction. Enfin, ce travail montre l'utilisation de l'information publique (densité en partenaires, productivité en jeunes l'année précédente) dans la décision de s'établir sur un site et ce, une fois que la décision de disperser est amorcée. La présence de moineaux et la proportion de cultures intensives dans un rayon proche participent également à la sélection d'un site. D'après mes résultats, le milieu intensif contribuerait au déclin de l'Hirondelle bicolore. / In North America, monoculture areas using high inputs of fertilizers and pesticides cover 85% of agricultural lands, and as many pastures disappeared in the past 20 years to satisfy human food needs. These land-use changes have deeply transformed landscapes and altered the biodiversity of agro-ecosystems. Among farmland birds, aerial insectivores such as Tree swallow, Tachycineta bicolor, studied here show a high rate of decline in their abundance, partly reflecting the degradation of agro-ecosystems where they breed. Biological mechanisms leading to the decline and dispersal patterns in migratory passerines are still poorly known. The present work quantifies the environmental effects on Tree swallow individual traits (survival, reproductive success) and breeding dispersal (probability to disperse and occupation rates of breeding sites). Between 2004 and 2013, 2200 breeders and 8000 chicks were ringed and monitored during 10 breeding seasons on a study area composed of 40 sites and covering a mosaic of heterogeneous agricultural landscapes in southern Québec. The development of a new, flexible capture-mark-recapture model has reduced estimate bias of survival and dispersal probabilities of Tree swallows. This approach allowed to assess the effect of several variables linked to habitat quality, public information and individual characteristics on dispersal, survival and reproductive success parameters of individuals. Within intensively cultivated landscapes associated to the presence of a nest site competitor, the House sparrow, Passer domesticus, male survival is up to 19% lower. Females are affected by the cost of reproduction, especially in intensive landscapes where House sparrows and found and where food resources and nest site appear limited. Dispersal probability is not affected by environmental conditions either through the presence of House sparrows or habitat quality, and is restricted to 4% in males. Females, which disperse up to 14 times more than males, base their decision on their personal experience. Breeding failure increases up to 7 times the probability to disperse and for the first time in a short-lived species, I show that dispersal likelihood increases if the individual has dispersed in the previous year. These dispersal patterns are stable in time. Dispersal appears as a costly process compared to site fidelity and is a minority phenotype in the population. It appears an answer to unfavorable condition for reproduction. Finally, this work shows the use of public information (partners density, fledglings productivity the previous year) on the decision to settle on a site and this, after the dispersal decision has been initiated. The presence of House sparrows and the proportion of intensive areas near nestboxes are used as information to select a breeding site. Based on my findings, agricultural intensification likely plays a role in the decline of Tree swallow populations.

La prédiction de la zygotie à partir du génotype le plus probable en la comparant à la PCR-SSP, n’était pas fiable liée à la possibilité d’avoir d’autres génotypes possibles pour le même phénotype. En effet, la fréquence très proche de l’haplotype R0 et r dans la population tunisienne rend la déduction du génotype le plus probable très aléatoire. Dans un deuxième temps, l’évaluation de la méthode moléculaire la plus convenable à la détermination de la zygotie RHD a été réalisée par comparaison des trois techniques moléculaires (PCR-SSP, PCR-RFLP et Q-PCR) et par l’analyse des résultats discordants par séquençage du gène RHD et des « boîtes Rhésus ». L’analyse de 370 échantillons RH:1 à l'aide de ces trois tests moléculaires a montré que 81,9% des résultats étaient en concordance alors que 18,1% en discordance. L’analyse des cas discordants a montré que notre cohorte se compose de 193 sujets dizygotes et 145 hémizygotes et 32 dont la zygotie reste inconnue. Cette étude a révélé 19 nouveaux polymorphismes des « boîtes Rhésus » et a permis aussi de décrire trois nouveaux allèles RHD: RHD(Trp185Stop), RHD(Ala176Thr) et RHD(Ile342Ile). Cette étude a également mis en valeur l’hétérogénéité des « boîtes Rhésus » et la complexité des allèles RHD en décrivant les nouveaux polymorphismes obtenus, ce qui met en évidence les limites des approches moléculaires de la détermination de la zygotie. La Q-PCR a été la méthode la plus adaptée à la détermination de la zygotie, mais en raison des contraintes économiques locales, la PCR-RFLP pourrait être une alternative malgré l’hétérogénéité des « boîtes Rhésus » et la complexité du gène RHD. / Determination of paternal RHD zygosity can help the clinician to assess the risk of HDN. It was determined initially by both assignment of the most probable genotype and PCR-SSP. The prediction of zygosity based on the most probable genotype was not reliable due to the possibility of other genotypes for the same phenotype. In fact, the frequencies of R0 and r haplotypes in the Tunisian population are approached and make the deduction of the most probable genotype very aleatory. Secondly, the evaluation of the most convenient molecular method for RHD zygosity determination was realized by comparison of three molecular techniques (PCR-SSP, PCR-RFLP and RQ-PCR) and analysis of discordant results by sequencing of the RHD gene and Rhesus boxes. Analysis of 370 RH:1 samples by these three molecular tests showed concordant results in 81.9% and discordant results in 18.1%. Molecular investigations revealed that our cohort consists of 193 dizygous and 145 hemizygous samples and 32 which zygosity remains unknown. This study revealed 19 novel Rhesus boxes polymorphisms, and described 3 novel RHD alleles: RHD(Trp185Stop), RHD(Ala176Thr) and RHD(Ile342Ile). This study also underlined Rhesus boxes heterogeneity and RHD alleles complexity by describing of new polymorphisms which showed the limits of molecular approaches for RHD zygosity determination. RQ-PCR is the most convenient method for first intension paternal RHD zygosity determination in Tunisians. However taking into account local economic constraints PCR-RFLP could be an alternative despite the Rhesus boxes heterogeneity and RHD complexity.

This work addresses the issue of data boxes information system, which supports electronic communication between public authorities and other bodies. Aim of the work is to identify measure and evaluate the effectiveness of the data boxes at selected public authorities when processing received and sent documents. The effectiveness is detected by using the proposed metrics and also based on the analysis conducted in order to examine the processing of documents at selected institutions. The effectiveness of data boxes is being researched at the Municipal Office Dub nad Moravou and the Czech Agriculture and Food Inspection Authority. The information needed for the process analysis and the data required for evaluating the effectiveness of the implementation of the proposed metrics were obtained from the staff of those institutions. The work is divided into four parts. The first part is a thorough description of the data boxes information system. The functionality, use, technical solutions and legislations of data boxes are described based on available information. The second part focuses on the description and analysis of selected public authorities and on the way they process received and outgoing mail. In the third part of the work appropriate metrics to assess the effectiveness of the data boxes are proposed, followed by implementation of two-phase measurements. In the fourth section the effectiveness of the data boxes is evaluated based on the measurements conducted at selected public authorities. The main contribution of this work is that it will be the first evaluation of the effectiveness of the data boxes in selected subjects approximately one month after the official launch. Another benefit is the proposal of process for the evaluation of the effectiveness of a very specific new information system within the body and a comprehensive description of the data boxes information system.

Although the e-Government was mentioned more frequently, especially because of data boxes, its origin dates back to 90th the 20th century. Then the first efforts to development of information systems began to connect various governmental offices. However, these efforts haven't been very successful. Subsequently, different e-Government services start developing and this is what the diploma thesis is about. First it outlines the progress of the e-Government. Then this thesis attempts to the e-Government services and also provides information about e-Government system in different countries. At the end there is described electronic data interchange, electronic invoicing and electronic archiving.

This diploma thesis describes information system of data boxes (ISDS). This system is characterized in terms of law about electronic operations and authorized conversion of documents no. 300/2008 commissioning the entire system. Based on statistical data provided by Ministry of the Interior, the system traffic and financial expenses are analyzed. Examined period is the start of the system in June 2009 and the end of period is October 2015. After analysis there is comparison with the period prior to launch of ISDS. Then I applied Multiple-criteria decision method on those two periods. Outcome of Multiple-criteria decision indicates that the ISDS is beneficial for users, rapidly enhances and accelerates electronic communication

Microtransactions are part of a business model used almost extensively in the video-gaming industry where developers offer virtual goods or features via micropayments. The concept is relatively new and still unknown to many but deeply rooted in modern video-game developers’ business strategies. Microtransactions are found in smartphone applications, online games played on computer or gaming consoles, and while the concept might be unfamiliar to many, the odds are most have encountered it.   Most published games will feature in-game purchases where users have to option to purchase features, items or content for a small amount of money. A microtransaction in its most simplistic form is ad-removal, here developers offer the user a way to get rid of ads by charging a small amount, like $.99. While one microtransaction may seem insignificant, multiple impulsive purchases can quickly add up to considerable sums. This has resulted in the use of microtransactions becoming the most profitable business strategy for game developers.   This study seeks to describe what stimulates a person to complete a purchase by using the components of hedonic motivation from the HMSAM theory leading to the research question: Which hedonic motivations induce use of microtransaction systems and does it vary by age? To research the phenomena a quantitative questionnaire was formed based on hedonic motivations, including three motivations added by the author, gathering responses from 398 video-game players having completed a microtransaction purchase.   After analyzing the results, some components protruded more than others while the consensus suggested that the influence of hedonic motivation was comparatively low. The argument for this outcome may be that players see in-game items as objects of real-world value, making the microtransaction system within a game a utilitarian-motivation system. The general attitude towards microtransactions appeared to be poor which contradicts some elements of previous research while supporting others.   This thesis will contribute to the field of informatics by complementing the traditional technology acceptance model (TAM) with hedonic motivations, as proposed by Lowry et al. in 2013. The author of this study argue it is a modernized way of researching intentions to use asort of system.