Recreational amenities present great value for the community. Their existence provides an improved quality of life, offers a connection with the natural surroundings, and facilitates a healthy lifestyle. While communities continue to create and operate recreational facilities/areas, the presence of such facilities may have indirect effects on the general population. Specifically, this thesis will compare the presence of recreational amenities in metropolitan statistical areas that contain universities which are a part of the Association of American Universities (AAU) and metropolitan statistical areas with similar populations and geographic characteristics that don’t contain an AAU-member institution.

As the need for similar skills across various industries has increased throughout the years, itis not mandatory to stay within the same industry or organization as you once started. Whennew opportunities take shape, people have come to compare their situation with what it couldbe like in another organization, in another industry, making the attractiveness of anorganization increasingly important, both to keep and to attract new talented employees. Thetourism & hospitality industry has long been perceived as an industry where there is poorwork-life balance, and lower compensation for the employees than other industries whencompared. Because of this, the tourism & hospitality industry have to reconsider theirpractices and evaluate what can be changed to increase the attractiveness, to ensure the futuregrowth of the industry. There are aspects of the tourism & hospitality industry that influence the intention to staywithin an organization, and in the industry as well, including the work-life balance andcompensation. However, there has been an emphasis on what influences the employees toleave rather than the aspects that could be changed to increase the attractiveness, reduce theportion of employees leaving, and attract new ones. There are also proven effects that criseshave on organizations within the tourism & hospitality industry, which influence some of thefactors, previously stated as reasons for employees considering leaving. Hence, there is aresearch gap on how to increase the attractiveness of organizations within the tourism &hospitality industry, after a crisis. The purpose of this study is to examine the key factors that explain why employees in thetourism & hospitality industry find other industries more attractive and identify howorganizations within tourism & hospitality must adapt to increase their attractiveness. Toaddress the research gap, this study used an inductive approach and conducted qualitative,semi-structured interviews to gather the data. When choosing a sample technique, it first tooka stance in the snowball technique, using the network of the authors to get in touch with theappropriate respondents. After this a purposive sampling technique was used to select themost appropriate respondents, with the ability to contribute to the study. The empirical datawas analyzed through a thematic analysis to review and present the relevant findings of the empirical data. From the thematic analysis, three main themes were identified: What creates the talentshortage, How do crises affect talent shortage and What can be done to prevent talentshortage. Within the three main themes, nine sub-themes were found, which assisted infinalizing a conceptual model, showing how organizations within the tourism & hospitalityindustry can change to become more attractive toward talented employees. The findings ofthis study shows that opportunities for personal development and career growth, continuouscommunication between employee and employer, involvement of employees in decisions,improved work-life balance, normal workloads, reduction of unhealthy stress, brand image,and compensation can increase the attractiveness of organization in the tourism & hospitalityindustry after a crisis, such as Covid-19.

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Title: The Analysis of Selected Swimming Pools in Prague Objectives: The aim of my thesis is to create an analysis of selected swimming pools and to compare them to each others. Furthermore, the thesis should show the threats and opportunities of the selected swimming pools. Methods: The case analysis was chosen as the main research method. In the preparation of this analysis other methods were applied, such as intentional selection, document analysis and semi-structured interview. Based on the results the SWOT analysis was developed. Through this method the strengths, weaknesses, opportunities and threats of the selected swimming pools are shown. The final comparison of all the swimming pools was made using all the previously mentioned methods. Results: The analysis shows that we can label all the selected swimming pools in Prague as functional swimming pools. Functional swimming pools do not lose money, nor do they profit. However, it was proved that none of the chosen swimming pools would be able to function without getting some form of grants. The location of a swimming pool does not influence the number of visitors coming there. Every location has its advantages and disadvantages. The selected swimming pools should try to make their web sites more interesting and easily accessible to visitors,...

Ce travail de thèse étudie l'évolution des éclosions d'Aedes (Ochlerotatus) caspius (Pallas, 1771) (Culicidae) sur le littoral méditerranéen français dans un contexte de changement climatique. Aedes caspius est un moustique nuisant se développant dans les milieux naturels salés à submersions temporaires dont le cycle de vie est réglé par un nombre de paramètres environnementaux relativement limités. Nous avons tenté de mieux cerner les déterminants des dynamiques temporelles actuelle et future des éclosions d'Aedes caspius. L'étude de l'aire de répartition d'Aedes caspius à l'échelle du bassin méditerranéen a conduit à définir une enveloppe bioclimatique actuelle et future. L'ensemble des anomalies climatiques telles que envisagées par les scenarii A2 et B2 du GIEC (horizons 2020, 2050 et 2080) entraîne un élargissement de l'enveloppe bioclimatique vers le nord et l'ouest de la France, et potentiellement une extension de la zone d'intervention de l'Entente Interdépartementale pour la Démoustication Méditerranée (EID), sans toutefois exclure les zones humides actuellement démoustiquées. La dynamique temporelle a donc pu être étudiée à partir de la base de données des interventions quotidiennes de l'EID, sur la période 2004-2009. A cette échelle locale (3 105 ha) et tenant compte de la variabilité météorologique inter- et intra-annuelle sur la période, un modèle logistique binaire d'occurrences d'éclosion a été développé. / This thesis studies the evolution of hatching of Aedes (Ochlerotatus) caspius (Pallas, 1771) (Culicidae) on the French Mediterranean coast in the context of climate change. Aedes caspius is a nuisance mosquito in natural salt to temporary submersion wetlands whose life cycle is regulated by a number of environmental parameters relatively limited. We tried to understand the determinants of temporal dynamics of current and future hatching of Aedes caspius. The study of the distribution area of Aedes caspius across the Mediterranean basin has led to the definition of present and future bioclimatic envelopes. The set of climatic anomalies such as envisaged by the scenarios A2 and B2 of the Intergovernmental Panel on Climate Change (IPCC) (period 2020, 2050 and 2080) leads to an enlargement of the bioclimatic envelope to the north and west of France, and the potential extension of the present day intervention area of the Entente Interdépartementale pour la Démoustication Méditerranée (Interdepartmental Agreement for Mosquito Control Mediterranean (EID)). The temporal dynamics has been studied from the database of daily interventions of EID, over the period 2004-2009. At this local scale (3105 ha) and taking into account inter-and intra-annual meteorological variability, a binary logistic model of occurrences of daily outbreaks has been developed. The resulting model reports that the type of land use, minimum temperature, photoperiod, temperature amplitude and to a lesser extent precipitation and their variability are the main factors explaining the presence of Aedes caspius outbreaks.

Financial markets perform two major functions. The first is the provision of liquidity in order to facilitate direct investment, hedging and diversification; the second is to ensure the efficient price discovery required in order to direct resources to where they can be best utilised within an economy. How well financial markets perform these functions is critical to the financial welfare of every individual in modern economies. As an example, retirement savings across the world are mostly invested in capital markets. Hence, the functioning of financial markets is linked to the standard of living of individuals. Technological advancements and new market regulations have in recent times significantly impacted how financial markets function, with no period in history having witnessed a more rapid pace of change than the last decade. Financial markets have become very complex, with most of the order execution now done by computer algorithms. New high-tech trading venues, such as dark pools, also now play outsized roles in financial markets. A lot of the impacts of these developments are poorly understood. In the EU particularly, the introduction of the Markets in Financial Instruments Directive (MiFID) and advancements in technology have combined to unleash a dramatic transformation of European capital markets. In order to better understand the role of high-tech trading venues in the modern financial markets' trading environment generally and in the UK in particular, I conduct three studies investigating questions linked to the three major developments in financial markets over the past decade; these are algorithmic/high-frequency trading, market fragmentation and dark trading. In the first study, I examine the changing relationship between the price impact of block trades and informed trading, by considering this phenomenon within a high-frequency trading environment on intraday and inter-day bases. I find that the price impact of block trades is stronger during the first hour of trading; this is consistent with the hypothesis that information accumulates overnight during non-trading hours. Furthermore, private information is gradually incorporated into prices despite heightened trading frequency. Evidence suggests that informed traders exploit superior information across trading days, and stocks with lower transparency exhibit stronger information diffusion effects when traded in blocks, thus informed block trading facilitates price discovery. The second study exploits the regulatory differences between the US and the EU to examine the impact of market fragmentation on dimensions of market quality. Unlike the US's Regulation National Market System, the EU's MiFID does not impose a formal exchange trading linkage or guarantee a best execution price. This has raised concerns about consolidated market quality in increasingly fragmented European markets. The second study therefore investigates the impact of visible trading fragmentation on the quality of the London equity market and find a quadratic relationship between fragmentation and adverse selection costs. At low levels of fragmentation, order flow competition reduces adverse selection costs, improves market transparency and enhances market efficiency by reducing arbitrage opportunities. However, high levels of fragmentation increase adverse selection costs. The final study compares the impact of lit and dark venues' liquidity on market liquidity. I find that compared with lit venues, dark venues proportionally contribute more liquidity to the aggregate market. This is because dark pools facilitate trades that otherwise might not easily have occurred in lit venues when the spread widens and the limit order queue builds up. I also find that informed and algorithmic trading hinder liquidity creation in lit and dark venues, while evidence also suggests that stocks exhibiting low levels of informed trading across the aggregate market drive dark venues' liquidity contribution.

Nitrogen availability and transformation in acidified and N saturated soils of Czech (The Bohemian Forest, Ore Mountains) and Ukraine (Pop Ivan massif) mountain forest ecosystems were investigated. The study was primarily focused on the role of microbial immobilization in soil N retention. The study was based on field measurements (ion exchange resins), analyses of selected soil biochemical and microbial characteristics, and on laboratory experiments (15N labelling).

Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2016-11-11T16:39:02Z No. of bitstreams: 0 / Made available in DSpace on 2016-11-11T16:39:02Z (GMT). No. of bitstreams: 0 / O reator de pesquisas IEA-R1 opera em regime de 40 h semanais à potência de 4,5 MW. Nestas condições, os cestos disponíveis para o armazenamento dos elementos combustíveis irradiados possuem menos de metade da sua capacidade inicial. Assim, nestas condições de operação, teremos apenas cerca de seis anos de capacidade para armazenamento. Considerando que a vida útil desejada do IEA-R1 seja de pelo menos mais 20 anos, será necessário aumentar a capacidade de armazenamento de combustível irradiado. Dr. Henrik Grahn, especialista da Agência Internacional de Energia Atômica sobre o armazenamento molhado (em piscinas de estocagem), ao visitar o reator IEA-R1 (setembro/2012) fez algumas recomendações. Entre elas, a concepção e instalação de cestos fabricados com aço inoxidável borado e internamente revestidos com uma película de alumínio, de modo que a corrosão dos elementos combustíveis não ocorresse. Após uma revisão da literatura sobre opções de materiais disponíveis para esse tipo de aplicação chegamos ao BoralcanTM fabricado pela 3M devido suas propriedades. Este trabalho apresenta estudos sobre a análise de criticalidade com o código computacional MCNP-5 utilizando duas bibliotecas americanas de dados nucleares avaliados (ENDF/B-VI e ENDF/B-VII) comparativamente. Estas análises demonstraram a possibilidade de dobrar a capacidade de armazenamento de elementos combustíveis, no mesmo espaço ocupado pelos cestos atuais, atendendo a demanda do reator de pesquisas IEA-R1 e também satisfazendo os requisitos de segurança da Comissão Nacional de Energia Nuclear (CNEN) e da Agência Internacional de Energia Atômica (IAEA). / Dissertação (Mestrado em Tecnologia Nuclear) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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