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857 Uppsatser om Sampling techniques - Sida 20 av 58

Miljöanpassad offentlig upphandling: effektivt styrmedel mot koldioxidutsläpp? : En studie av kostnadseffektivitet, transaktionskostnader och teknisk utveckling

Green public procurement (GPP) can be used as an instrument to reduce carbon dioxide emissions, and consideration of environmental aspects within public procurement is becoming more common in Sweden and internationally. Two product groups that have been pointed out as especially important are transports and electricity, where the opportunities for public purchasers to reduce emissions are relatively large. This paper studies GPP which aims at reducing emissions, primarily of carbon dioxide, through environmental requirements within these two product groups. A theoretical analysis of cost-effectiveness, transaction costs and effects on technological development is performed, followed by a closer study of how these aspects appear in practice within GPP. The results indicate that a cost-effective allocation of reductions between the two product groups is most likely to be attained if the main part of emission reduction is achieved through environmental requirements on electricity. The cost for emission reduction within transports is relatively high, especially for heavy transports. For transportation services, more generally focused requirements on emission reductions could probably give greater environmental gains, but the existence of transaction costs steer the environmental requirements towards more technology specific types.

Bildklassresa mellan konststilar och epoker : om bildlärares konstsyn och teknikval i grundskolans bildundervisning

The purpose of this study was to to examine what teachers think about visual art and how the learning process in this subject does look like. To answer these issues, I made interviews with five teachers of visual art from different schools, and I examined several examples of pupils? artworks. The stories of the teachers were analyzed in relation to governing documents and with assumptions from sociocultural theory, postmodernism and pedagogical - aesthetic research as theoretical point of view.By the qualitative interview method, the observations of the pupil?s artworks, and by the analysis of the interviews with the teachers, I have come to the conclusion that teachers think differently about art but they try to keep themselves in line with the national governing documents.

Pedagogers uppfattningar om den fysiska miljön i förskolan : En intervjustudie med pedagoger från olika pedagogiska inriktningar

In recent years, the demands for effectiveness and evidence in social work have increased in all work areas, including that of healthcare. This has sparked the discussion on concepts such as practical- and theoretical knowledge and their respective roles in social work. In the light of this, the purpose of this candidate thesis is to investigate healthcare social workers understanding of practical- and theoretical knowledge in the working process as well as their respective influence and importance. This candidate thesis is based on three interviews with social workers from different departments in Norrlands Universitetssjukhus in Umeå, Sweden. To provide range to the thesis, the interviewees were chosen from a purposeful sampling.

Webbläsartillägg för inhämtning av data

Speedledger is a company that is working to automate electronic accounting for businesses, organizations and associations.In the current situation bank data is sent from the users internet bank to Speedledger via a virtual printer driver. The driver transforms the web page into a PDF and sends it to a server for interpretation.The problem is that PDF is not created for this sort of data transfer and makes the interpretation of data is very problematic.The goal of the thesis is to study whether there is a possibility to develop a browser add-on that can retrieve information on the customer's banking page and send it on to Speedledgers server for interpretation. My task was to implement a add-on for one of the three major browsers Mozilla Firefox, Google Chrome or Microsoft Internet Explorer, and then study the possibility of implementing it to the other two by reading the documentation.What I concluded was that it is possible to implement for all the three browsers. However, the techniques will differ slightly when developing these add-ons.  .

Utlandsfödda människors upplevelser av sjuksköterskans bemötande i den svenska sjukvården.

Aim: The aim of this study was to describe how immigrants have experienced nurse's attitude and how they would like nurse´s to care for them in the Swedish health care. Method: The authors have conducted an interview study with qualitative approach. The sampling method used was a convenience sample. The informants were recruited at a school after the authors received the principal's approval. Eight semi-structured interviews were performed with an interview guide for support.

Mobilapplikationer som hjälpmedel i underhållsindustrin : med fokusering på arbetsorderhantering

This thesis paper discusses the results of a survey which was conducted to investigate the potential usefulness of mobile apps in the maintenance department at Perstorp Specialty Chemicals AB. The paper contains four sections, a theory section, a method section , a section that explains the functionality of the app, and finally a results section where the results and conclusions of the survey are discussed. The theory section explains and discusses relevant terminology used in the computer science field and in the maintenance industry. The theoretical model used in this paper is also discussed. The methods section gives a stepwise description of the project and a description of platform and software used.

Praktisk tillämpning av virtuellt byggande i partneringprocessen

This thesis paper discusses the results of a survey which was conducted to investigate the potential usefulness of mobile apps in the maintenance department at Perstorp Specialty Chemicals AB. The paper contains four sections, a theory section, a method section , a section that explains the functionality of the app, and finally a results section where the results and conclusions of the survey are discussed. The theory section explains and discusses relevant terminology used in the computer science field and in the maintenance industry. The theoretical model used in this paper is also discussed. The methods section gives a stepwise description of the project and a description of platform and software used.

Ensilering i plansilo

The aim with this literature review is to describe the ensilage process in a bunker silo. The process from harvest and chopping to filling and unloading the silo is explained. The sealing of the bunker silo plays an important role for the final quality of the silage. This review covers some of the techniques used. There are many silage additives on the market, some of them are presented including how they act in the ensilage process.

Såromvårdnad på reptiler

As reptiles are becoming more common as patients in veterinary clinics, there is a need for creating new procedures regarding the care of exotic pets. The aim of this study was to develop a wound care routine adapted to reptiles, which can be used independently by a veterinary nurse due to the absence of prescription drugs or surgical techniques. The study was conducted by compiling the available research regarding wound care in reptiles, as well as research from related fields. The result indicates that polyurethane films and chlorhexidine-alcohol may advantageously be used on these patients. Hydrocolloid dressings and silver sulfadiazine dressings have adverse effects on wound healing and should not be used routinely in reptiles.

Bära lin - ett utforskande möte mellan tråd och visa

Simplicity, intimacy, freedom and one single threadcharacterize the knitting technique.In my project, I have studied ways of creating three-dimensional shape and structure using single threads and various knitting techniques. I applied my ideas in a collaboration with the singer Sofia Karlsson. The focus has been to design a portable object that can be used in pictures for the cover and promotion of her upcoming album.The material I studied, processed and used in creating the three-part object was linen. In the center stands a collar, that changes expression depending on how it is worn and which side is turned towards the outside. The collar interacts with a cylinder for her hands and a hairnet.

HAVECA-modellen : En metod för att fortlöpande säkra ett internt nätverk mot tredjepart

This thesis will address a problem concerning availability of information systems at an enterprise within the financial sector and its external suppliers, so called trusted third party. The information system resides on the internal network of the enterprise and must be available to both employees of the enterprise and the trusted third party simultaneously. This contradicts the company policy which disallows third parties access to the internal network. The HAVECA-model introduced in this thesis provides a framework of methods, each solving a sub problem identified in the model. The identified methods are hardening, verification, control and assurance, together supplying a method for continuously securing the internal network against a trusted third party.

Parameterstudie av inneslutningsbildning och utvärdering av processföring för tillverkning av plastformsstål

This thesis has been performed at Uddeholms AB with the purpose to investigate theparameters affecting the formation of inclusions during the manufacturing of a low carbonmanganese-steel.A follow-up, steel and slag sampling and evaluations in microscope have been done for a totalof five heats.The results for each heat have been evaluated in relation to the theory from the literaturesurvey and suggestions for changes in the process to reduce the amount of inclusions whichhave a negative effect on the steel quality have been given.The project extends over a large process where many parameters affect the formation ofinclusions. However, a tendency that a higher addition of alloys seems to increase the totalamount of inclusions before and after the vacuum degassing is seen.The majority of the studied inclusions seem to approach the composition of the top slag aftervacuum degassing. Ladle glaze may cause the inclusions which had a different compositioncompared to that of the slag.A high or low ladleage together with a high argon flow during vacuum degassing seems todissolve particles from the refractory which later on get trapped inside the inclusions.The floatation for two heats has been studied where a short floatation seems to give a higheramount of inclusions in casted material.In machined material so called stringers were found. The main composition of those stringerswas pure alumina. Inclusions with a composition of pure alumina were not found in the liquidsteel, thus the pure alumina inclusions must be formed during the casting.

A world of illustration - Ett utforskande projekt om Illustration som begrepp och koncept, dess gällande och möjliga användningsområden samt utformningen av en arbetsprocess

It is not about the perfect tune or pretty picture.It is always, always about the story. (Is or ought to be)When we release a new album, publish a book or show a brand newcollection of clothes or furniture etc. it is (or ought to be) because we havesomething to say (tell/share). The choice of language, in which we tell our stories,is vital for how they will be perceived.This is where illustration comes in. Illustration is a tool for storytelling, for contributingto the world in the most legible way.Illustration is legibility, it is the italic, the underline, the ?quotation mark?, the exclamation mark!It is not about the pretty picture.I want to talk about this.

Bröd vid död i Kalvshälla : Analys av förhistoriskt organiskt grav- och boplatsmaterial från Barkarby i Järfälla socken, Uppland

This paper deals with prehistoric charred organic material, interpreted as bread, found in graves and in the underlying settlement at Kalvshälla, Järfälla parish in Uppland. The aim was to categorize the organic material morphologically and with the help of Fourier transformed Infrared spectroscopy (FT-IR) to see whether it was bread or not. Material from 13 graves (dated to Late Roman Iron Age until Viking Age) and 3 finds from the settlement have been analysed. Differences were noted both in shape, porosity and structure. Some of the material has been interpreted as cereal based foodstuff instead of bread due to morphological discrepancies.

Genomgång av kemikalieförteckning som exempel på uppströmsarbete : en identifiering av utfasningsämnen i spillvattnet

Benthic invertebrates play important roles as feeding resources for many organisms in different food webs. Shifts in predation of these organisms can generate cascading effects and potentially lead to the disappearance of one or more species from a site. Cascading effects can bring impacts to organisms who aren?t even directly involved, why studies in this field are important for understanding sudden changes in ecosystems. I examined the predation from fish and waterfowl on benthic invertebrates in the shallow and eutrophic Lake Tåkern in the plains of Östergötland County, southern Sweden.

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