Yeast and Clostridia is a problem in silage for farmers as contaminated silage may result in poor animal health and milk quality. Clostridia can produce toxins that, when consumed, acts as neurotoxins, it may also cause blown cheeses if the Clostridia contaminates milk. The purpose of this study was to investigate the cause, effect and interaction of yeasts and Clostridia in silage. Clostridia are microorganisms which are strictly anaerobic and consume carbohydrates and protein in the silage. Yeast is a fungus that is facultative aerobic and feed on carbohydrates in the silage.

This thesis examines the ongoing European political debate on the links between livestock production and climate change. In the end of 2006 the UN Food and Agriculture Organization (FAO) released their report Livestock?s long shadow, showing that livestock production represents some 18 % of the total global greenhouse gas emissions. The purpose of this paper is to explore the European Commission?s position and response to this question since the release of the report.Using Arne Naess? argumentation analysis, statements made by the Commission will be systematically organized and broken apart.

Hållbar utveckling har, allt sedan Brundtlandrapporten 1987 och Rio 1992, utgjort den fundamentala idén för långsiktiga miljö- och utvecklingspolitiska strävanden och kommit att dominera miljöpolitiken/policyn i många länder. Med utgångspunkt i Hajers teori om diskursiva strategier för ekologisk modernisering, studeras i denna uppsats (1) hur hållbar utveckling påverkat svensk miljöpolitisk diskurs samt (2) hur den diskursiva dynamiken kring skiftet i svensk miljöpolitik - från kretsloppstänkande och Agenda 21 till ekologisk modernisering - efter socialdemokratins nya vision om 'det gröna folkhemmet', bör förstås.I en fallstudie i Malmö studeras närmare hur förändringen av den miljöpolitiska diskursen återspeglas i en lokal kontext samt huruvida det är nationell styrning, lokal logik eller ömsesidiga samspel inom ramen för de diskursiva förändringarna som gör att den lokala praktiken 'blir vad den blir'..

This essay is derived from a case study about the SIRA school in Betlehem. SIRA is classified as a special education school with financial support from the Swedish International Relief Association. SIRA acts to provide support for children with reading and writing difficulties in their daily school work.The study's aim to describe the context for SIRA's specialized educational activity. The formulated questions should provide answers to which factors that influence SIRA's work, its goals, development, and the distinguished pedagogical approach.During the research comprehensive interviews were conducted with parties which can influence the way schools operate and provide the necessary support for students. Factors that influence the school's operation are analyzed from a ecological development perspective created by Urie Bronfenbrenner. The theory advocates that a student's development and interaction mainly comes from participating in activities, social roles and relations.This constant process of mutual adaptation between the developing individual and its surrounding environment is to be defined as its own entity. The result shows that SIRA's practice a special educational operation with focus on an approach which strengthens the student's identity and communicational skills..

SammanfattningSyftet med den här undersökningen är att ta reda på hur barns tankar kring ekologiska processer kan utvecklas, samt att ta reda på vad i undervisningen som anses vara avgörande för att förmå barn att utveckla sina ekologiska reflektioner. Kvalitativa intervjuer och ett undervisningstillfälle ligger till grund för undersökningen. Därefter sammanställdes och kategoriserades barnens ekologiska processtankar. Resultatet av undersökningen visar att förutsättningen för utvecklande undervisning, är pedagogens kännedom om barnets individuella erfarenheter. Det är utifrån dessa som barnet tar emot ny kunskap och sedan kopplar ihop den med tidigare upplevelser.

The Swedish forest policies have earlier mainly been focused on two goals: production and environment. The production goal aims to benefit the economical gains from forestry while the environmental goal primarily aims to shield the ecological values of the forest. With the introduction of the Swedish environmental code and the environmental objectives it was made clear that the overall objective for Swedish community development, including the forestry sector, is sustainable development. Sustainable development includes supporting economic, ecologic as well as social values of which the latter seems to have been forgotten in the forestry sector. This was recently brought to attention to the sector and the debate how to handle the social values is now ongoing.The legislator has not been unaware of the social values since they have since long been at least somewhat included in the preliminary works.

This study aims to analyse the connection between poverty reduction and sustainable development through strategies used for the reduction of poverty. With the methodology of content analysis of three policy documents to provide and easy overview of how the government of Ethiopia is planning to achieve sustainable and long-term poverty alleviation. The focus of this study will be on Ethiopia, a country with very high economic growth in the past years but still with hight poverty rates. The purpose of this study is to contribute to the already existing and broad knowledge and research of sustainable development and poverty alleviation and contribute with more research in Ethiopia where the research done in this specific area and region is not in abundance. In this study all dimensions of sustainable development, social, economic and ecological are included to get a more holistic picture of the sustainable development in the government?s plans and its challenges.

This study deals with some contested issues regarding prehistoric cultural development in Amazonia and the colonial impact on the native inhabitants of the area. It focuses on the relation between groups belonging the language families of Tupí and Gê, on one hand, and the different ecological zones that they inhabit, on the other. GIS mapping is used to visualise the distribution and movements of these groups in relation to ecology and the impact of European colonization. GIS is shown to be a useful methodology for analysing historical data derived from written sources and maps. The results of these analyses are discussed in the light of different theoretical perspectives.

The access to good sanitary facilities is an important factor that elevates the experienced living standard as it improves hygiene and reduces the transmission of deseases. The ratification of the millennium goals by 189 countries demonstrates that this is an important international issue. Together the countries have taken upon themselves that the proportion of the population that lacked access to sustainable safe drinking water and sanitary facilities in the year 2000 will have been reduced by half by the year 2015. In Peru, the construction of sewage pipe networks to transport the sewage out of the direct human environment is progressing. The safety and sustainability of these systems can be questioned, since in Peru the sewage seldom receive any treatment before being emitted to a recipient. This is taking place in Picota and sorrunding villages as well. In the last 25 years several systems implementing small-scale onsite treatment have been introduced throughout Latin America in an attempt to give more people access to sustainable and safe sanitary facilities, reducing water consumption and taking advantage of the agricultural values of the sewage fractions while protecting the environment from its negative impact. In this study three different sanitary systems and the effects of different population growths were compared.

The most common preventive and treatment service for children in child welfare services in Sweden is the contact family program. The number of children who are involved in the program has steadily increased. Usually it is a single mother who apply for or is offered this service. The aim with a contact family is that the parent should get respite and that the child should have its network enlarged and sometimes get a male role model.The purpose of this study was to look into how children´s perspective was considered in the contact family process. I have studied the process in order to see how it works and to see to what extent children is participating.

Vi lever idag under ett klimathot som påverkar oss alla. I ljuset av detta har byggbranschen valt att börja ställa om mot en mer hållbar bransch. Under tiden har även ekohus och ekobyar byggts upp som ett alternativ sätt att bo suntSyftet med detta arbete har varit att undersöka vilka val som byggherrar/beställare gör vid projektering av nya bostäder. Jag har valt att inte titta på energianvändningen utan fokuserat på vilka miljömässiga aspekter som återfinns i arbetssätten kring projekteringen av bostadshusFör att ta reda på vilka val som kunde anses som ekologiska/miljömässiga gjordes först en litteraturstudie. Sedan gjordes en enkätundersökning där utvalda företag fick svara på bl.a.

The aim of this study was to examine the current and historic mercury(Hg) load of the lake Storjuktan due to its recent exposure to a local potential source of Hg in form of the Sulphide mine Blaikengruvan(2006) and an earlier potential sources of Hg-load, the damming of the lake(1960s). Sediments were extracted using a HTH-sampler, freeze-dried, and analyzed for tot-Hg, LOI and activity of 210Pb and compared to samples extracted prior to the opening of the mine(2006). Constant initial concentration (CIC)-dating model was used for dating the samples. Low levels of Hg (100ng/g) were found throughout the lakes sediment. The highest levels of Hg(220ng/g) was detected at a depth of 4-5cm dating back to the mid 1970:s, suggesting that increased levels of atmospheric Hg rather than damming of the lake has caused the increase of Hg.

Debatten om ekologisk kontra konventionell odling har blossat upp allt mer, förespråkare från båda synsätt har sagt sitt genom slagfärdiga debattartiklar och diskussionen har sedan fortsatt vid middagsborden runt om i landet. Denna kandidatuppsats i ämnet landsbygdsutveckling syftar till att undersöka vilka drivkrafter som kan ligga bakom olika aktörers engagemang i jordbruksfrågor och hur de ser på vad som är en hållbar livsmedelsproduktion. Uppsatsen syftar även till att utforska hur informanterna framställer sig själva och andra aktörer i debatten som förts kring ekologisk kontra konventionell odling. Vem bär enligt informanterna ansvaret för jordbrukets utveckling? Behövs en radikal omställning i hela livsmedelsproduktionen för att nå mer hållbarhet eller räcker det med att enbart göra små justeringar? Det empiriska materialet består till största del av fyra informanters syn på dessa och liknande frågor. Detta material har sedan analyserats med inspiration från Erving Goffmans teori om intryckskontroll och Ulrich Becks teori om risksamhället..

This thesis highlights the importance of social relationships for high school adolescents? identity in a multicultural school in Stockholm?s suburb. The second purpose of this thesis is to shed light on, if the school sees the students? cultural background as an asset and how teachers can take advantage and implement it to the way they teach .The theories in the study were developed by Urie Bronnfenbrenner; The ecological theory, Pierre Bourdeau; The three forms of capital and George H. Mead; The significant other, The generalized other and "I" and "Me".

In 1990 the education training program for teachers working with children with special needs was changed. One major difference in the new program compared with the former one is that the specialized teacher is now mainly supposed to supervise teachers instead of teaching pupils who have learning difficulties. The aim of this qualitative interview study has been to find out what the specialized teachers think about there education, and how this could influence children with cognitive disabilities in special schools. I have interviewed six teachers who specialized in teaching pupils with cognitive disabilities. Three of them where educated prior to 1990 and the others were educated after 1990.