Sökresultat:
6119 Uppsatser om Environmental science - Sida 55 av 408
Att förstå omorganisationer : En studie av det svenska krisberedskapsområdet 2000-2010
Essay in Political Science, C-level, by Camila Alvarez Cea, spring semester 2010. Tutor: Alf Sundin?Reality or a Political Mirage? ? A Study of the Swedish Press Views on the Health Insurance Reform in the USA? The purpose of this essay is partly to examine whether the picture that Swedish press presents of the health insurance reform in the US, which is part of the Patient Protection and Affordable Act bill, will be of crucial importance to the possibilities that the American population has to receive health insurance. The main research question is accordingly: ?Does the picture that Swedish press presents of the health insurance reform in the USA, seem like something that will be of radical importance to the possibilities of the population to receive healthcare?? The purpose is also to examine in which model (demand or market) the opinions of the Swedish press fits. This purpose will be answered by using three specific questions asking whether their opinions differ when it comes to three criterions: organization, financing/resources and delivery systems.
Ut ur Östersjön genom vassen : beskrivning av övergödningsproblematiken samt optimering av en reningsmetod genom skörd av vattenväxter
This study is based on AgroSeas business idea from environmental problems to valuable resource, with the objective to optimize a method to purify the already eutrophicated Baltic Sea by harvesting water plants, mainly reed. The nutrients will then be recirculated to arable land through residues from biogas production. The amount of nutrients that can be removed by harvesting the biomass
depends on the amounts of biomass and the nutrient content of it, which in turn is strongly dependent on the nutrient concentration of the surrounding water. Vegetation suggested in the study for an effective nutrient uptake is helophytes: reed, cattails, reed canary grass, reed sweet
grass in shallower water and lemnoideaes: duckweed and nymphaeids in the deeper parts.
Competitive species has high purification ability but requires regular maintenance to avoid channeling and overgrowth. Regarding time and method of harvest, effectiveness may be improved by: harvesting plants above the water level and after flowering, a border is kept, harvesting twice a season, a bigger machine and a regular maintenance.
This literature has illuminated a major environmental problem and it has been suggested
optimizations for a method for cleaning the Baltic Sea through harvesting water plants, but to get a
definite answer for the optimal method for each site tests should be carried out, this because many
factors determine to what is suitable for each, specific environment.
.
Fett osynlig? : En undersökning om representation av överviktiga och feta kroppar i två läromedel för gymnasieskolan
This exam paper has examined visual portrayals of overweight and fatness in two swedish upper secondary school textbooks, one in physical education and one in social science. The textbooks were analyzed in regard to numeral representation, interacting social categories such as gender and age, depiction in forms of activities and stereotypes and relation to context close to or far away from a swedish context. The analysis showed an underrepresentation of overweight and fat bodies in both textbooks, but the represention of overweight bodies in the textbook on physical education were nearly nil whereas in the textbook on social science there where representations of both overweight and fat bodies. Combined the both textbooks gave a representation of health and youth as not represented by overweight or fat bodies..
Fo?rutsa?ttningar fo?r elektrifierade lastbilar med eHighway inom svensk gruvindustri : En ja?mfo?relse av olika transportslag mellan Mertainen och Svappavaara
The Swedish government has a goal of achieving a fossil-free vehicle fleet in 2030. Heavy transport constitutes a significant part of Sweden's transportation sector and the vehicles are driven almost exclusively by fossil fuels. Siemens has developed eHighway, a concept for electric road systems enabling electrification of trucks, in order to reduce the environmental impact of heavy transports. This study aims to investigate the potential that eHighway has on transporting iron ore from the mine of Mertainen to a processing plant in Svappavaara. Electrified trucks are compared with conventional trucks, and diesel and electric trains.The evaluation was made with respect to energy consumption, environmental impact, and cost.
Handel med utsläppsrätter - hur företagsstrategier påverkas :
Climate change is one of the most difficult problems that humans have to deal with. Today, the evidence of human effects on the climate change and the rise of temperature on earth are strong. It is extremely important that all countries get together and cooperate in order to be able to solve the problem with climate change. One step in the work on climate changes is the Convention on Climate Change, which was agreed on in 1992. The Convention on Climate Change resulted in the Kyoto Protocol in 1997.
The Kyoto Protocol is an agreement between a number of industrialized countries to limit or reduce the green gas emissions.
Avsättningsmöjligheter för slaggrus från avfallsförbränning vid Åmotfors Energi
The incineration of waste is steadily increasing in Sweden and so is the production of ashes. The bottom ash has for many years been used as construction material in
landfills. Now many of the nation's landfills are closed and there is a great need to find another beneficial use for the ash. Bottom ash is a gravel-like material and with its material properties it can replace natural gravel in parts of roads and surface constructions. Today this use is only approved within landfill areas where leachate is
collected and checked.
Skydd mot nitrat och bekämpningsmedel i dricksvatten : åtgärder och styrmedel i fem länder
In many European countries there is an increasing concern about the occasionally
high concentrations of nitrate and pesticides in drinking water. The advent of the EU
Water Framework Directive particularly highlights this. The directive states that all
large drinking water sources should be identified and protected from pollution before
2009 and that by 2015 all water bodies should reach a 'good status'.
In Sweden about 60 percent of the drinking water sources have protection areas. This
means that about 700 new water protection areas need to be designated before 2009.
This will affect many farmers, restricting their farming practices.
The purpose of this study was to investigate which methods are used in other
countries concerning nitrate and pesticide pollution from agriculture. From this, the
expectation was to generate ideas on what could be undertaken in Sweden when
designating new protection areas.
Hur ofta bör småhus sotas? : En samhällsekonomisk analys av ändrade sotningsfrister
Sweden recently changed the national regulation of chimney sweeping. This study has two purposes. The first purpose is to evaluate the effect of this reform to see if the new regulation has led to an effect in terms of increased chimney fires in single-family houses and for the wood-burning and oil-burning stoves, respectively. The second purpose is an updating of a previous study (Mattsson 1994) of analysis of society´s benefits and costs of different alternative sweeping frequencies for wood-burning and oil-burning stoves. This study also has a secondary purpose to examine the extent to which the local sweeping rules vary with climate conditions. Mattsson, based on his results, proposed that the sweeping requirements for oil-burning stoves should be reduced from twice a year to once every second year and for wood-burning stoves the sweeping should be reduced from four times to once each year.
Systemutveckling i praktiken - konsten att tillmötesgå den okända användarens krav
ABSTRACT
System development has become more and more concentrated on development for the
Web and this has resulted in larger target groups. It will most surely continue
to be so considering that the Web will be the infrastructure of business and
services in the future. A big target group involves that the owner of a system
can earn a lot of money from the paying users, but that assumes that the system
can meet user needs. If a system on the Web does not satisfy the user?s demands
then they will use the competitor?s system instead because it is only a
mouse-click away.
Kaffesump som substrat i biogasanläggningar eller som bränsle i fjärrvärmeverk : en studie av effekter på växthusgasutsläpp och kostnader
Each year, the coffee machines at Ericsson in Kista produce around 100 tons of ground coffee waste.The companies Coor Service Management, Löfbergs Lila and Selecta are all responsible for differentstages in the logistical chain in delivering coffee and, together with Ericsson, they want to increasetheir environmental benefit. The plan is to produce biogas through anaerobic digestion instead ofincinerating the coffee waste in a heating plant. The results are to be presented as different businesscases in which different biogas plants are compared with the reference case (heating plant),comparing costs and environmental impacts.There are two major environmental benefits from producing biogas; reduced carbon dioxideemissions from when fossile fule is replaced by carbon neutral biogas, and reduced emissions fromreturning digestate from the bio reactor to farmland instead of using industrial fertelizer.In order to determine the biogas potential in coffee waste, a couple of properties had to bedetermined in a laboratory. Properties such as the dry substance content, heating value, moisturecontent and ash content. The results show that 100 tons coffee waste could produce around 16 500Nm3 biogas which would contain 163 MWh.The biogas reactor and upgrade plant both need energy gas to function and uses around 14 MWh ofthe produced gas.
Medskyldig till folkmord? En studie om internationella samfundets inblandning i folkmordet i Rwanda 1994.
The Rwandan genocide 1994 was a well-planned and ethnic based act that killedapproximately 900 000 people. The UN and the colonial powers are getting much attentionand are worldly discussed about the failure of interference before and during the genocide. Inthis study the history of colonial Rwanda will be analyzed and the UN relation will bediscussed. This will be done by examining how the colonial powers have affected Rwandathrough history and how the UN have responded upon the challenges towards Human Rights.Questions about accountability and failure will also be discussed and analyzed. This has beendone by analyzing highly reliable documents and books by NGOs and scholars.
Småskalig vattenkraft : Dagsläge och framtidsplaner
This study focuses on small scale hydropower in Sweden. This means plants with a capacity of up to 10 MW. The study has a special focus on plants with a capacity up to 2 MW. The study has three aims. It strives to describe the small-scale hydroelectric industry in Sweden.
Den nya bibliotekariens kompetens : en studie av bibliotekarier utbildade i Borås, Lund och Umeå
The main purpose of this Master's thesis is to investigate the new librarians' experiences and skills in the context of their present work situation and the ongoing debate about the librarian's professional identity and status. Further, the authors wanted to find out whether the new librarians' experiences and knowledge developed throughout their education correspond to the requirements of the employers. Finally, they try to assess theimpact of the "academization" of the library schools on the status of the profession. The data consist of an opinion poll. The investigation is based on questionnaires distributed as a web survey.
Internationalisering inom life science : Fallstudier av Uppsalaföretagen Biotage, Olink och Orexo
Life science sysselsätter i Uppsala 4500 personer varav 60% arbetar på de fyra största företagen. Branschen är forskningsintensiv och producerar bland annat läkemedel och produkter till läkemedelsbolag och akademiska institutioner. Produkterna är nischade och företagen måste ofta vara globala redan från start. Denna studie undersöker med hjälp av teorier om internationalisering tre fallföretag inom life science från Uppsala. Genom intervjuer och årsrapporter dras slutsatsen att fallföretagen främst har internationaliserat sin försäljning med olika strategier för att penetrera internationella marknader.
Fallstudie av Pumas Environmental Profit and Loss Account
Introduktion:Att hållbarhetsredovisa efter GRI:s riktlinjer är idag en standard bland multinationella företag världen över. Vi anser dock att det är mer givande för intressenter att placera företaget i ett större sammanhang och för att se hur mycket företagets miljöpåverkan kostar samhället årligen. Sportsko- och klädesföretaget Puma har i en resultaträkning monetärt uppskattat hur mycket miljöpåverkan från deras leverantörer och egna aktiviteter kostar samhället varje år. Den kallas för Environmental Profit & Loss Account och fungerar som ett transparens-, strategi- och riskhanteringsverktyg.Syfte:Den här uppsatsen syftar till att beskriva hur EP&L kan användas i framtiden.Problemformulering:1. Hur används EP&L som strategi- risk- och transparensverktyg?2.