As the trend in environmental care grows, the emphasis on removing the old environmental burdens is bigger. This thesis is dedicated to the case when the soil was contaminated by products of gas industry in the area of Jihomoravská plynárenská, a.s. in Brno - Zábrdovice . The aim of this work is to select the appropriate remediation technology and shoring remediation pit in mentioned locality. Diploma thesis also includes design and assessment of selected construction sheeting calculated by the method of dependent pressures, technology design and implementation of construction drawings.

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Die vorliegende Arbeit wurde im Rahmen des BMBF-geförderten Projektes "Luft- und bodengestützte spektrometrische Untersuchungen zur Differenzierung reaktiv veränderter Braunkohlentagebaugebiete in Mitteldeutschland" (Vorhaben 02 WB 9667/5) als Kooperation zwischen dem GeoForschungsZentrum Potsdam (GFZ), dem Deutschen Zentrum für Luft- und Raumfahrt (DLR), der Gesellschaft für Angewandte Fernerkundung (GAF) und dem Umweltforschungszentrum Leipzig/Halle GmbH (UFZ) angefertigt. Grundidee des Projektes war es, die durch spektrometrische Erfassungsmethoden der Fernerkundung erhaltenen Überfliegungsdaten mittels konventioneller petrographischer, mineralogischer und geochemischer Analytik zu kalibrieren. Der Schwerpunkt dieser Arbeit lag dabei in der Charakterisierung der hydro- und geochemischen Veränderungen in den Kippensedimenten des im mitteldeutschen Raum südlich von Leipzig aufgeschlossenen Braunkohlentagebaus Zwenkau. Zu diesem Zweck wurden die Kippensedimente in Abhängigkeit des Schüttungsalters und der Lagerung untersucht sowie die spezifischen Merkmale der Kippenwässer und Bodengase erfaßt, um die im Kippenkörper ablaufenden chemischen, petrographischen und gefügemäßigen Veränderungen sowie die Wechselwirkungen zwischen den Sedimenten, Wässern und Bodengasen zu beschreiben. Schließlich wird ein Modell zur zeitlichen Entwicklung der Abraumförderbrückenkippe, beginnend bei ihrer Verkippung bis hin zu einem Alter von etwa 20 Jahren, vorgestellt, welches die beobachteten Erscheinungen bezüglich der auftretenden endogenen und exogenen Wechselwirkungsfaktoren gut erklärt. / This thesis was prepared in cooperation with the GeoForschungsZentrum Potsdam (GFZ), the Deutsches Zentrum für Luft- und Raumfahrt (DLR), the Gesellschaft für Angewandte Fernerkundung (GAF), and the Umweltforschungszentrum Leipzig/Halle (UFZ) in frame of the project "Airborne and laboratory spectroscopic studies for differentiation of reactively alterated lignite mining pits in Central Germany" (No. 02 WB 9667/5) which was gratefully supported by the Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF). The major idea of the project was to achieve a calibration of the spectroscopic data acquired by the remote sensing though the results obtained from conventionally petrographical, mineralogical and geochemical analyses. The main goal of this thesis was the characterization of the hydro- and geochemical alterations in the conveyor bridge dump of the open lignite mining pit Zwenkau which is located in the Central Germany District southern of Leipzig. Therefore, dependent on their ages in terms of dumping and their surface-near locations the dump sediments were investigated and the specific properties of the different types of dump water and soil gases were acquired as well in order to describe the ongoing chemical, petrographical and structural alterations and interactions between the sediments, the water and the soil gases in the conveyor bridge. Finally, a model of the chronological development of the overburden sediments starting from their spilling up to an age of about 20 years is proposed which well explains the observed phenomena regarding the appearing endogenous and exogenous interaction factors.

AbstractIntroduction: - An estimated number of 40 to 80 new-born babies are being abandoned by their mother in Kampala –Uganda annually. These children are usually dumped into dust bins, on streets, on hospital facilities, in bushes or in pit latrines. Aim:-The aim of this study was to investigate the goals of the organizations/institutions working with child abandonment in Kampala, to find out whom they collaborated with, to examine how the staff working with the organization/institution perceive the women who abandon and issue behind. Furthermore their personal incentives to continue to work with the problem, Method: A qualitative approach was used in this study and face to face semi-structured interview were conducted, since this was the best way to explore feelings, thoughts and attitudes of the respondents who gave answers to complicated questions. Research Questions: What are the main goals of the organizations/institutions and with whom do they collaborate with? What are their major hinders and needs? Do they see any progress? What are their perceptions of the mothers who abandon their new-born babies as well as the issues behind this cruel action? When did the staff became aware of this problem and what are the incentives driving them to continue do this work? Results: The results of the study were consistent with the research namely; the role of the organizations was reported being rescuing of the abandoned babies. First they are taken to the hospital during the first critical hours, thereafter are taken. to children court to get a permission to keep them in the children’s home; or find adoptive parent for these children who can give them love, care and education. Tracing mothers or family members was on the agenda, and in some case eventual re-unification was possible. The hinder which were met by the organization while doing their work were financial resources, misinformation about the organizations in the community, poor flow of information, lack of facilities to accommodate abandoned children, and poor collaboration with the government. Conclusion: The organizations/institutions are doing a good work, but procedures which are used at the moment are unfortunately not enough to reduce the problem. Therefore acute and new even radical approaches are needed to be put into consideration.

The geographical focus area of this essay is Holmöarna archipelago, which is a very large group of islands that are located a short distance to the east of the city Umeå, in northern Sweden, Västerbotten county. This essay is an attempt to uncover and provide knowledge regarding Holmöarna archipelago’s forgotten Iron Age period through the means of GIS-analysis, literary studies, a field visit, as well as morphological comparisons of ancient artefacts and monuments from the area. / Det geografiska fokusområdet i denna uppsats är Holmöarna skärgård, vilket är en mycket stor ögrupp som är lokaliserad ett kort avstånd öster om staden Umeå, i norra Sverige, Västerbottens län. Denna uppsats är ett försök att avslöja och förse information som har med Holmöarna skärgårds bortglömda järnålder att göra. Detta sker med hjälp av GIS-analyser, litterära studier, ett fältbesök, samt morfologiska jämförelser av artefakter och fornlämningar från området

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Anthropogenic lakes constitute a significant part of the Czech countryside water component which has not been given sufficient attention so far. The presented thesis deals with the assessment of variability of physico-chemical properties of water in 30 selected pit lakes in order to identify specific features associated with quarrying of different mineral raw materials, basin morphometry and trophic level of the lakes affecting the quality of accumulated water. In the second part of the thesis the author deals with the comprehensive limnological study of the Hromnické Lake with extreme water chemism resulting from excavation of pyritic shales and focuses on the phenomenon of meromixis especially. The results are based on the evaluation of physical properties of water in the lake vertical profile (temperature, conductivity, dissolved oxygen, pH, transparency and colour) and chemical analyzes of water samples collected from the surface and bottom of the lakes during the four seasons in 2003-07 (determination of Ca, Mg, Na, K, Nammon., NO3 - , SO4 2- , Cl- and alkalinity), including determination of chlorophyll-a. In the case study of the Hromnické Lake conducted in 2010-11, the analysis of hydrological regime of the lake, determination of PO4 3- , TOC, selected metals (Fe, Mn, Al, Zn, Ni, Cu, Co,...

Our study adds to the understanding of dental caries prevention in underserved populations. Dental caries is the most common disease of childhood but can be easily prevented. It is therefore essential that policy makers use evidence to promote policies that will help reduce the burden of caries in high-risk children. We collected socioeconomic and demographic data through written surveys from parents of children at the Lyford Consolidated Independent School District in Willacy County. We got a 60% response to our survey. The survey data was matched with dental examination data from a teledentistry project. Only 19% of children in our matched sample had any sealant but 43% had at least one dental caries. Of those without sealants, almost half (49%) had caries while of those with sealants only 19% had any caries. We also found that while half (48%) of those from low-income households (ie, annual income <$25,000) had caries, only a third (34%) of those in high-income households had any caries. Our data analysis involved econometric modeling to study the impact of various factors including dental sealants on the occurrence of dental caries. We assumed dental sealant application to be a proxy for past preventive dental care. We used multivariate probit regression to test for endogeneity in our model. The estimation results from univariate probit models showed a strong and robust preventive effect of dental sealants on dental caries. We used Ordinary Least Squares (OLS), logit, probit, and logistic regressions to confirm the results and obtained similar findings. We used our fitted model to simulate the effect of providing sealants to all children in our sample and found that there will be a 52% - 68% decrease in the mean predicted probability of caries in different scenarios. Finally, we used cost estimates from published studies and the annual survey of dental fee by the American Dental Association to calculate cost-benefit of providing sealants through school-based programs. We found school-based sealant programs to be cost-beneficial. Our analysis leads to a recommendation to promote school-based sealant programs in underserved populations. / text

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Thesis by publication -- 8 co-authored articles. / Thesis (PhD)--Macquarie University, Division of Environmental and Life Sciences, Department of Biological Sciences. / Includes bibliographical references. / Preface -- Management issues of urban common brushtail possums (Trichosurus vulpecula): a loved or hated neighbour -- Effects of deslorelin implants on reproduction in the common brushtail possum (Trichosurus vulpecula) -- Brushtail possums (Trichosurus vulpecula) in metropolotan Sydney: population biology and response to contraceptive implants -- Strategic survey for Toxoplasma gondii and Neospora caninum in the common brushtail possum (Trichosurus vulpecula) from urban Sydney, Australia -- Leptospirosis serology in the common brushtail possum (Trichosurus vulpecula) from urban Sydney, Australia -- Conclusions. / The common brushtail possum (Trichosurus vulpecula) is indeed a common inhabitant of many Australian citites, and one of the few marsupials that has adapted well to the urban environment. Their close proximity to people provides a great opportunity to experience native wildlife in the backyard, however, their utilization of house roofs, bold behaviour and appetite for garden plants often leads to conflict with householders. Population numbers are sufficiently high to require ongoing management to minimise negative impacts for humans and brushtail possums alike in a socially acceptable manner. The aim of this thesis was to identify current management issues and address the need for improved and novel management strategies. The potential of slow-release implants, containing the GnRH agonist deslorelin, as a contraceptive agent for brushtail possums was tested on a captive population. Males appeared resistant to treatment, but deslorelin was found to inhibit reproduction in female brushtail possums for at least one breeding season, making it a promising tool to control fertility in some wild populations. A further aim was to trial deslorelin implants on a wild urban population, to collect more information about the urban biology of this species and to point out issues which have previously not been addressed. Close proximity and interaction of urban brushtail possums with humans and their domestic animals can increase the risk of disease exposure and transmission and influence the health of wild populations. Serosurveys showed that animals were readily exposed to Leptospira spp. and Toxoplasma gondii. This thesis also provides the first data on brushtail possum dispersal in urban areas, knowledge which is highly relevant to the development of management strategies such as fertility control. The findings from this research broaden our knowledge about urban brushtail possums and should assist wildlife authorities in developing alternative or improved management procedures. / Mode of access: World Wide Web. / xxv, 287 p. ill., maps