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1298 Uppsatser om Water scarcity - Sida 65 av 87

Stadens offentliga rum ur ett socialt hållbarhetsperspektiv - Jubileumsparken, ett offentligt rum för unga?

The public spaces of the city from a social sustainability perspective, Jubileumsparken, a public space for the young, aims to see how public spaces can be open and accessible to all young people in the community. New public spaces can be created and formed by urban planning. A public space that is undergoing considerable development is Jubileumsparken, which is situated in Gothenburg. This area constitutes the case study for this thesis. Due to the commercialization in the neo-liberal society of today, there is a risk that economically weak people, such as the young, the unemployed or students, can?t take part of all public spaces.

Foraging and anti-predation behavior of Thomson?s gazelles (Gazella thomsoni) and Grant?s gazelles (Gazella granti) at a waterhole

Prey species make behavioral decisions to reduce the perceived risk of predation and the time spent vulnerable to predation. Behavioral responses to predators are for example selection of specific habitat types and the presence of predators influence individual vigilance. Furthermore, there is a variation in feeding niches with different herbivores focusing their foraging effort on different vegetation types which is also expected to affect the choice of habitat. Behavioral data on anti-predation and foraging behavior at on waterhole is collected from Thomson?s and Grant?s gazelles at Ol Pejeta Conservancy (0°00?N, 36°56?E) located in semiarid bushed grassland in Laikipia district of central Kenya.

INVERKAN AV HAVSF?RSURNING P? PROTONERBARA ORGANISKA F?RORENINGARAS EKOTOXICITET

Resulting from anthropogenic carbon dioxide emissions, average surface seawater pH is estimated to decline from today's approximately 8.05 to between 7.78 and 8.03 towards 2100. For ionisable organic pollutants, changes in pH can lead to a change in the degree of ionisation, which could influence the ecotoxicity of a compound by altering its bioavailability. In this study, potential changes in ecotoxicity of ionisable organic compounds resulting from ocean acidification are examined. This is achieved partly by conducting a literature review, analysing existing literature that investigates this relationship. Potential changes are also evaluated by examining marine ecotoxicity data for ionisable organic compounds on the watch list pursuant to Directive 2008/105/EC of the European Parliament and of the Council, as well as on the list of priority substances according to the 2022 proposal for amending the Water Framework Directive (2000/60/EC).

Språklig dramatik vid Svansjön : Den spänningsskapande dialogen i Kristina Lugns Kvinnorna vid Svansjön

The drama of Kristina Lugn?s Kvinnorna vid Svansjön (The women by the Swan Lake) takes place in the dialogue and language; the same ambiguous language that is found in Lugn?s poetry. In this essay I examine how meaning and dramatic tension is created in the dialogue of Kvinnorna vid Svansjön.I describe the play, using concepts from various drama theories. However, the most important concepts of classical drama theory such as "story" and "plot" are not really applicable. This is because of the contradictory information given in the dialogue.

Vattenvård vid slutavverkning : före och efter vattenvårdsutbildning på Stora Enso Skog, distrikt Siljan

In 2006, Stora Enso Skog implemented an education program in water management for harvester operators, timber purchasers, cut block planners and supervisors. The focus of the program was creating stream crossings with minimal harm to the stream and the surrounding riparian area. This main purpose of this study was to determine the difference in work procedures before and after participating in the program. The methodology consisted of field studies and interviews with harvester operators and their supervisors. The field study looked at how the streams had been crossed concerning the number of crossings, visible damage to the stream and/or the riparian area made by the machines. Biological parameters such as the width and dept of the stream and amount of large woody debris in the stream were also measured. The field result from 30 harvesting sites showed no significant difference between sites that had been harvested before or after the education program. But the harvester operators and their supervisors experienced an increased concern for watersheds after the educational program.

Majs till mogen skörd :

Corn is an important food and feed crop in the world, in Sweden it?s up till now grown on limited acreages mainly for silage. But I think it can get more important if you can grow it also for grain, because it?s a good animal feed for example, for life stock-, pigsand poultry. On of corns advantage is that it can produce the same amount of dry matter as for example wheat, barley and rise but with 25% less water. I will examine if it possible to grow corn for grain production in the south of Sweden.

Hållbar dagvattenhantering i Malmö: Fastighetsägare och VA-Syds syn på dagvattenhantering i ett förändrat klimat

Med ett förändrat klimat förväntas nederbörd och kraftiga skyfall öka i framtiden. Detta i kombination med en ökad urbanisering och allt fler hårdgjorda ytor i städerna leder till att befintliga dagvattensystem kommer bli överbelastade. Nederbörden förväntas öka med 10-20 procent och avrinningen med 5-25 procent under det närmaste seklet. I många städer har de naturliga avrinningsområdena försvunnit i samband med urbaniseringen och bostäder byggs på olämpliga platser med stor översvämningsrisk. Behovet av en hållbar dagvattenhantering är betydande för att undvika negativa konsekvenser i städerna framöver.

Teknikimplementering vid muddringsprojekt : Viktiga faktorer vid teknikval samt olika aktörers betydelse i processen

There are today large amounts of contaminated sediments in the Baltic Sea. These contaminants are the result of many years industrial activity where the contaminants have not been taken care of and just released out in the water. When ports want to dredge in their fairways and harbor areas the contaminated sediments need to be considered since they are a environmental risk. The development in this area has been slow and new techniques have just recently made its way into dredging operations in the Baltic Sea region. As a result of this there are no clear methods for implementing new techniques today.

Överlevnad och tillväxt för nyplantersade barrots- och täckrotsplantor : en studie av 42 bestånd i södra Sverige

The choice between bare-rooted and containerized seedlings in southern Sweden affects the investment costs as well as growth and survival. It is important to take these differences into account when choosing seedling type for reforestation. The most important differences between the two seedling-types is that bare-rooted seedlings has open root systems whereas the roots of containerized seedlings are grown in a container which may contain water and nutrients that are available for the seedling during the first period after planting. Moreover, bare-rooted seedlings are often older which results in thicker stembase and better resistance to attacks of pine-weevil (Hylobius abietis). In order to study differences in survival and growth between bare-rooted and containerized seedlings a survey study of newly planted clearcuts in south-western Sweden was made. In the study tree seedling types was included, one bare-rooted and two containerized with different ages. The population of pine weevils was probably low during the studied period which resulted in lower pine-weevil damage than normally found in this area.

Produktutveckling av komfortlösning till lastbilshytt

This report describes a project carried out in cooperation with Klippan Safety AB. The purpose of this project has been to develop a product that facilitates the living area in a truck cabin for the customers. To be able to develop, in a structured way, that kind of product, the project has been based on different product development theories. The project contained of following parts: marketing research, product generation, product evaluation and prototyping. After information from the marketing research and discussions with the company, the decision was made that the task was going to consist an improvement of the existing product referred to as 'the comfort module'.

Mödradödlighet i Afrika söder om Sahara: En kvantitativ studie om den nationella utvecklingens påverkan på mödradödlighet.

About 1000 women in the so called developing countries die every day associated with pregnancy and childbirth. Sub-Saharan Africa is the worst affected region. This study aims to explore the different key factors in national development that can interact with a reduced maternal mortality. The study compares 15 countries in sub-Sahara where the greatest reduction in maternal mortality occurred with 15 countries in sub-Sahara where maternal mortality reduction has been at its lowest, between the years 2000 to 2010. This study also analyzes the link between reduced maternal mortality and various key factors for national development.

Kateterrelaterade urinvägsinfektioner ? brist på effektiva preventioner ? En litteratursammanställning

Background: Urinary tract infections caused by indwelling urinary catheters causes unneccesay suffering among those it affects. These infections are also financially straining on the health care services. It is therefore of importance to gain knowledge about which evidence based preventive interventions that have the possibility to reduce the risk for bacteriuria and urinary tract infections among patients with indwelling urinary catheters. Aim: This study aimed to compile available knowledge concerning i) if silver alloy catheters does reduce bacteriuria in this patient group, ii) if aseptic catheterization does reduce bacteriuria in this patientgroup, iii) which routines for changing the urinary drainage bag reduces the risk of bacteriuria, iv) which routine genital hygenic care reduces the risk of bacteriuria? Method: Litterature was searched for in the data bases Cinahl, Medline and The Cochrane Library using the data bases? thesaurius combined with OR/AND.

The secret life of Bacillus anthracis

Bacillus anthracis is the causative agent of anthrax, a serious and globally distributed zoonosis affecting a wide range of wild and domestic animals, invariably also humans. However, although known to humans since biblical times, much remains to be elucidated concerning the ecology and transmission of this bacterium. Of particular interest is the Bacillus anthracis spore, the uptake of which is the predominant way to contract anthrax and which is legendary for its resilience in the environment and thus crucial for persistence and spread of the disease. Hence, the aim of this study is to review the natural transmission of Bacillus anthracis and investigate potential means by which soil persisting Bacillus anthracis spores reach concentrations sufficient to infect susceptible hosts. When reviewing the literature, three different theories can be distinguished. Firstly, ?the incubator area? hypothesis suggests that favourable soil factors, possibly in association with amoebas, may constitute an environment supporting repeated spore-bacterium-spore cycling, thus increasing the local amount of spores.

Metanpotential för alger och bioslam blandat med pappersfiber

In this thesis the methane gas potential of three different substrates, two algaes Saccharina latissima and Laminaria digitata and biosludge mixed with paper fiber was studied. This was done by batch experiments in a laboratory environment to examine the gas production and composition of the produced gas.Biogas production is a complex anaerobic digestion process in which various microorganisms decompose the substrate in steps and at the end produce biogas and a residue. Many factors affect the production of gas, for example the substrate content, temperature and pH in the digester.The analysis of methane potential were divided into two experiments. In experiment 1 substrates were digested along with inoculum from Växjö waste water treatment plant in a temperature of about 37 ?C.

Phosphorus in agricultural soils around the Baltic Sea : comparisons of different laboratory methods as indices for phosphorus leaching to waters

Eutrophication of the Baltic Sea is a serious problem. A major contributing factor is diffuse losses of phosphorus (P) from agricultural land in surrounding countries. In order to estimate P losses, environmental monitoring of small agriculture-dominated catchments is being carried out in most of these countries. Evaluation of the risk of P leaching to waters is usually based on chemical tests originally developed to quantify the amount of soil P available for plant production. The tests are performed in different ways in the different countries and a number of different extraction agents are in use.

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