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417 Uppsatser om Chemical in clothes - Sida 18 av 28
Sederingsrutinens påverkan på resultatet av höftledsröntgen : en pilotstudie
Hip dysplasia is a common, inherited malformation of the coxofemoral joint that
eventually leads to osteoarthrosis. Several breeds of dogs are affected and the
prevalence varies between different breeds. As part of the effort to reduce the
prevalence of hip dysplasia and select dogs suitable for breeding, radiological
screening is performed by at least 12 months of age. Before the radiological
examination the dog has to be chemically restrained, sedated or anesthetized. The
sedation protocol used differs between veterinary clinics.
The impact of sedation method of the screening result for hip dysplasia has been
studied.
Kloridutlakning från flygaska : möjligheten till en lokal hantering
In Sweden, there are limits to how much leachable substances waste must contain in order to be deposited as hazardous waste. Fly ash from waste incineration often end up over the limit, mainly due to the chloride content. Fly ash is therefore often deposited abroad. The purpose of this study was to investigate the possibility to handle fly ash locally. To clarify how the law is applied, environmental reports and permit documents from ten waste sites with permission to deposit fly ash were studied.
Risk för exponering av växtskyddsmedel i växthusmiljö
Plant Protection Products (PPP) used in the horticulture industry can be both chemical and biological. They are used for weeds (herbicides), insects (insecticides), and fungi (fungicides) and as growth retarders.Many horticulture workers get in touch with plants, treated with PPPs and many of these don?t use any protective equipment.The aim of this project is to illustrate the work environment hazards for staff working with greenhouse pot plants, after they have been sprayed.The method used was observations of the operations for packing plants. I studied the operations and took notes of how operations were performed and what protective equipment they used. I also took photos and asked questions.A literature study completed the observations.
Livscykelanalys av en ekologisk bomullsskjorta - miljöpåverkan från vagga till grav
This study includes a life cycle assessment, LCA, on an ecological produced cotton shirt for the company Reflective Circle, which designs ethical and ecological clothes.Initially were cotton farming and textile production studied to gather basic knowledge about the processes. Since this shirt is being ecological produced in the whole production chain, we studied what an ecological production means, but also how a conventional production works. When this was done we could start to discuss the differences and similarities between the production of the shirt and general conventional production.When the LCA was first initiated, the main focus was on the green house gas emissions from the manure at the cultivation. Thereafter the process steps such as picking, ginning, carding, spinning, weaving and sewing were being studied. The picking is done by hand, but the rest of the processes are handed by machines which consumes energy.
Modellstudie av föroreningsretention i Bäckaslövs våtmark : Tillämpning av modellverktygen MIKE SHE WET och MIKE 21
During the nineties, ecological handling of urban storm water became very popular in Sweden. Together with Chalmers University of Technology and two Swedish communities, DHI Water and Environment has been doing research of storm water ponds and constructed wetlands. This thesis work is a part of that research project. The work has been applied at the Bäckaslöv storm water treatment plant in Växjö, Sweden. The plant consists of one storm water pond and a downstream constructed wetland.
Bestämning av organisk halt i avloppsvatten med Total Organic Carbon (TOC)-analys
Kommunalt avloppsvatten innehåller stora mängder föroreningar bland annat organiskt material som påverkar organismerna i naturen. Reningsverken runtom i Sverige arbetar ständigt för att minimera utsläppen av föroreningar. Det är viktigt att kontinuerligt analysera vattnets kvalité för att kontrollera reningsverkets funktion. Total Organic Carbon (TOC) och Chemical Oxygen Demand (COD) är två analysmetoder som används för att mäta organisk halt i avloppsvatten. Från COD-analysen uppkommer farligt avfall som innehåller kvicksilver varför analysmetoden enligt EU-direktiv ska fasas ut.
Investigation of yeast Grown in SSF Dring Biothanol Production from Lignocellusosic Material
Ethanol produced from lignocellulosic biomass has the potential to become a promisingalternative to gasoline. In this work the simultaneous saccharification and fermentation (SSF)technology was applied for ethanol production from hardwood with focus on cell growth,ethanol production and contamination.The SSF was performed at PH 5.5 and 35°C for different suspended solid concentrations(8%, 10% and 12%) of pretreated birch slurry which contained 16 % total suspended solids.Two different hexose fermenting yeast strain (Ethanol Red) and pentose fermenting yeaststrain were used.Quantifying the concentration of chemical components and metabolites in the fermentationmedium demonstrated that glucose and xylose are the major fermentable sugars in the slurry.The higher load of slurry (12%) represents a higher content of carbohydrates and potentiallyhigher end concentration of ethanol. Moreover, more lactic acid is produced with the lowerload of slurry (8 % or 10 %), presumably due to a result of a less inhibitory environment forbacterial growth. In this context, acetic acid sticks out as the most important inhibitor withconcentrations of 15.2 and 12.5 and 9.7 g/l respectively in the 12 %, 10 % and 8 % (ofsuspended solids) trials. Using pentose fermenting yeast may lead to higher ethanolproduction, lower xylose uptake and lower lactic acid formation.
Den ena boplatsvallen är den andra lik? : Miljöarkeologisk intra-site studie av boplatsvallar vid Lillsjön, Anundsjö sn., Ångermanland
Boplatsvallar, often translated as semi-subterranean settlements, is an ancient monument with a diffuse definition. Defined as ?embankments that partially or completely surround a often lowered/dug down surface- this category of ancient monuments is also made up of a former category which traditionally was interpreted as winter settlements from the late Stone age in Sweden. This view of the ancient monuments carried over, to a certain extent, to this new definition. Should this be the case, that this category of ancient monuments are remains of winter settlements, used recurringly over an extended period of time, then they should exhibit similar signals in regards to the distribution of the anthropogenically altered soil chemical and soil physical properties at the sites.The area around Lillsjön, Anundsjö parish in Ångermanland, have four boplatsvallar located separately in the regional area.
Tweens' uppfattade värde av ett varumärke : - en studie av konsumenter 10-14 år och hur de relaterar sig till ett varumärke
Background:The value a consumer connect with a certain brand and its design differ from person to person. This value ought to be investigated. Why does people buy expensive things when there are cheaper alternatives? Is it brand equity and/or the perception of a brand?s value that make a difference? People strive to show themselves and to perform through products, which makes it interesting to see to the perceived value of design.Tweens is a group of consumers that are easily influenced to consume products by their surrounding. To choose clothes, shoes and other products after what your surrounding?s demand, is a way of adapting yourself to society.
Produktsäkerhet i livsmedelsindustrin : HACCP inom bageri och konditori
During the last years, producers and consumers have become increasingly aware of food safety. Foodborne illness and foodborne injury are in best case unpleasant but they can also be fatal. HACCP (Hazard Analysis Critical Control Point) is a preventative food safety system which is aimed to guarantee production of safe food free from pathogens, foreign materials and substances with potential to cause adverse health effect. In order to succeed in developing, installing, monitoring and verifying a HACCP system, there is a mix of hurdles for the company to overcome. While larger food companies meet a difficult challenge, small and medium size enterprises often feel that the hurdles are almost impossible to manage.
Representationer av migranter inom biblioteks- och informationsvetenskaplig forskning : En textanalys utifrån kritiska ras- och vithetsstudier och intersektionell teori
The purpose of the essay has been to examine representations of immigrants in contemporary library and information science research in a Scandinavian context. By analyzing nine articles from the past decade we examine the perceptions that exist in the concepts of multiculturalism, culture, race, ethnicity, religion, gender and whiteness and what role and importance the library as a place is assigned in relation to immigrants as a user group. Our study consists of a qualitative text analysis, a critical oriented close reading method based on critical race and whiteness studies and intersectional theory. We have, with the help of Sara Ahmed´s theories of hegemonic whiteness, demonstrated how multiculturalism is partly presented as something desirable and good, partly as something potentially threatening.The discourse of multiculturalism can be said to express the notions of the other, which in the source material manifests itself by ascribing otherness to immigrants. We have, for example, examined how ethnical and cultural differences are highlighted by a separation of East and West, the library?s educational and assisting role in relation to immigrants as a user group as well as representations of whiteness, gender and clothes.
Kan en H & M och en Zarakund vara samma kund? ? En undersökning i två europeiska städer.
The struggle for the customer has become a priority for the fashion industriesconsidering that it is the customers? willing to shop that guarantees theircontinuous survival on today?s competitive market. To keep the customer happyand satisfied, should be their priority as this leads to an economic advantagesince the customer becomes the companies strongest allay with help of the socalled ?word of mouth? effect. The positive response is then transmitted fromthe customer, acting as a spokes- person for the company.
Båtbottenfärger innehållande TBTO : huvudsaklig källa till TBT i miljön
Antifouling paint containing the biocide bisTributyltinoxide (TBTO) has been used since1960 to reduce the occurrence of fouling on hulls on boats/ships. January 1st, 2003 theantifouling paints containing TBTO were prohibited. This ban covered all use of paintcontaining the substance TBTO. The ban was introduced because of alarming observationssuch as development of imposex in aquatic non-target organisms. Imposex is the impositionof male sexual characteristics on mainly female marine snails and occurs due to exposure toTributyltin (TBT).
Utvärdering av anaerob behandling av hushållsspillvatten och tekniker för efterbehandling
The continuous process of urbanization results in demands on research and development for ecological and sustainable city development. Because of this, the current systems for wastewater treatment may have to be improved. In order to evaluate new technologies for municipal wastewater treatment, a development project has been initiated for the new district Hammarby Sjöstad in Stockholm. The project is lead by the company Stockholm Water. High environmental standards have been put up for the district, as it must be twice as good as an ordinary new district.
Sexualiserade rykten - en del av vardagen? : En studie av några unga kvinnors förhållningssätt till rykten.
The purpose of this thesis is to understand the ways in which rumors affect the everyday lives of a few young women. The questions are: What kinds of rumors do the young women find are the most common? How do they respond to these rumors? Do the rumors affect their everyday lives and if so, how do they react to them? Do they resist them? Do they feel limited by them?The empirical data was collected through unstructured interviews (focus groups) with three groups. The groups discussed different themes without prompting questions by the interviewer and it was clear that rumors played an important role, in multiple ways, in the lives of the young women. The most common rumors were sexualized and were mostly concerned with the view that the young women should not engage in ?too many? heterosexual relations ? preferably none.