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1039 Uppsatser om Dead wood qualities - Sida 49 av 70

Dentala kompositmaterials inverkan på närliggande celler.

Inledning Implantatbehandlingar har blivit allt vanligare och material som associeras med implantat är oftast dentalt titan och dentala keramer. Även kompositmaterial förknippas ibland med implantat. Det är inte helt ovanligt att kompositmaterial förekommer vid submukösa implantatbehandlingar och få studier är hittills gjorda på kompositmaterials cytotoxiska påverkan på omkringliggande vävnad. Material och metod Sammanlagt tillverkades 24 stycken provkroppar till studien av två kompositmaterial (Crea.lign och SinfonyTM) och ett fältspatsporslin (Noritake). Tre provkroppar av varje material ytanalyserades med hjälp av optisk interferometri.

How strain and production system effects chicken welfare and quality in meat : a literature review

There are several reasons why organic chicken production is scarce in Sweden. Lack of slow growing (SG) strains combined with higher production costs, lower meat-yield and uncertainty of consumers? willingness to pay seems to be the main reasons. EU-legislations imply use of indigenous slow- or medium growing strains in organic production, nevertheless, fast growing (FG) broilers are often used due to their effectiveness. Increased consumption of processed food creates a market for conventionally rearing of very heavy broilers.

To be or not to be: invandrarungdomars tankar om grupptillhörighet, identitet och framtid.

Sweden is divided according to an ethnic boundary, which divides people in "we" and "the others", "Swedes" and "immigrants" (Ålund, 2002). We believe this is due to the fact that society categorises immigrants all the time as a homogeneous group with fixed and static qualities, resulting in a situation where you cannot represent yourself as a person. Instead you are represented on the basis of your ethnic belonging. Young immigrants often grow up under other conditions and find themselves in more vulnerable situations than Swedish youths. The purpose with this paper was to investigate young people with different ethnic backgrounds, their thoughts and feelings about their identity, group belongingness and future.

Naturupplevelse och psykisk hälsa : Hur påverkar naturupplevelser människor med stress- och utmattningssymtom

Stress-related diseases in Sweden have doubled since 1997. Even longterm sickness related tostress has increased over the last decade. In future there is a need of alternative methods todecrease the amount of people being affected to gain a better population health. Natureassisted therapy (NAT) was shown to be a successful method as part of the therapy of stressand burnout likewise was nature an important factor to prevent people from mentaldisorders. The aim of this study was to analyse the latest research concearning nature and itshealth effects with focus on stress and burnout patients in order to plan health promotingactivities outdoors for these patients.

INFÄSTNING AV LED-ARMATUR

The thesis was performed at the lighting company Zpecta AB. Zpecta needed to develop alternative attachment of their LED-luminaire Capella. Today Capella attaches in metal ceilings with four magnets. Zpecta got indications from their customers that there was a need for other attachments. The purpose is to determine the customer?s requirements and the interfaces that are considered for Capella.During the thesis, Capella was only on the market for testing and evaluation.The thesis was initiated to create a specification.

Vilken föryngringsmetod ger bäst resultat på torra och friska marker, höst- eller vårplanering? : en jämförande studie utförd på uppdrag av Stora Enso Skog

Regeneration with scarification and planting is a well known method, but the plants have a tuff period in the beginning. Decease of plants comes from pine weevils, dry weather, browsers, wrong method of scarification and wrong time for the planting. These are some courses why not every planting gets successful. The purpose with this study is to investigate witch time of planting gives the best result, spring or autumn planting and to give a answer of witch factors are the main course of deceases. The goal is to have the study to decide witch time to plant after final felling. The choices of plantings were maid from a period of three years. Spring plantings were from year 2005, 2006 and 2007 and autumn plantings were from 2004, 2005, and 2006.The purpose was to compare differences in deceases at the same spring weather.

Människovänliga stadsrum enligt Jan Gehl

How do you build cities that are exciting and nice to live in? What factors in the physical environment is it that make you feel comfortable in some of the places in the city, but in other places not comfortable at all? Why do some cities have a rich public life in their public realm, while the public realm in other cities is abandoned and empty? How do you plan environments that support people?s physical and mental health? These are questions that I put to myself, and that people who are interested in or working with physical planning should ask themselves. That is why I have been studying an authority on the subject, the Danish Professor Jan Gehl, who has been researching and working with peoplefriendly public realms for 50 years. He is best known for his book Life between buildings that has been a text-book in the education of architects for more than 30 years, and to have initiated Copenhagens most famous pedestrian street, Strøget, to show his theory of how people will use the public realm, if it?s only got the right qualities.

Barkar det åt skogen för svenskt tidningspapper? : empirisk analys av efterfrågan och företagsstrategier på den svenska marknaden

According to Food and Agriculture Organization newsprint is defined as: Uncoated paper, unsized (or only slightly sized), containing at least 60 percent of mechanical wood pulp. The consumption of newsprint in Sweden was just over 798 000 tonnes in 2009, which represents approximately 90 kg per person. Although there are studies that predict a drastic reduction in newsprint consumption in the Western world, there seems to be a clear difference between forecasts for the future given by statistical analysis of newsprint consumption and forecasts given by experts in the industry. The former predict a continuing increase while the experts see a coming decrease in consumption.In this report, both demand and business strategies of newsprint in Sweden are studied. The study also presents a forecast of the future which is based on historical data and qualitative interviews.

Skenbar arbetsbrist

In claims for unfair dismissal due to alleged redundancy, the burden of proof should be shared to enable an employee to have the cause of redundancy tried. In such a case, the employee should present evidence of an invalid cause ? such as personal reasons ? and the employer should account for the redundancy. With reference to their conflicting interests, the law favours the employer if the redundancy can be accounted for even if the employee maintains his or her position. This would have been reasonable practice if the employer?s evidence was subject to the same scrutiny as that of the employee but, as long as redundancy is considered a valid cause in itself, this is not the case.Redundancy does not come from nowhere, but it occurs when employers carry out their management decisions.

Identifiering av konfliktbestånd med hjälp av laserskanning

The interest in harvesting wood fuel in conflict stands has grown in recent years as a consequence of the increased demand for biofuel. Conflict stands are young forests that have not been cleaned and have a large number of stems ha-1with a great height and diameter distribution. This means that traditional field measurements in conflict stands are difficult and very time consuming. Therefore, the forestry sector is in need of new, more efficient inventory methods. In this study, the Lidar data from Lantmäteriet?s (the Swedish mapping, cadastral and land registration authorities) new national height model was used in combination with plots from the Swedish national forest inventory from 2009 to create functions for; height, volume, diameter and number of stems.

Tillgång till Open Access: En studie av hur svenska högskole- och universitetsbibliotek tillgängliggör Open Access-tidskrifter i ämnet fysik

The aim of this Master thesis was to examine how libraries at Swedish colleges and universities make Open Access journals in physics available to users. We examined if, where, and how the 50 Open Access journals that are listed in the Directory of Open Access (DOAJ) under the heading Physics (General) were made available to the public at 19 Swedish colleges and universities. We also examined possible patterns regarding qualities in the Open Access journals and to what extent the libraries made them available. For this descriptive statistic was used. The selection of library portals that were included in the study were those Swedish colleges and universities that teach physics.

Utvecklad modell för enklare djurskyddsbedömning : med exempel från mjölkkor i lösdrift

Developed model for easier animal welfare assessment- with examples from dairy cows in loose housingAnimals in captivity are completely dependent on human care. If captive animals are prevented from exhibiting their natural behavior, they may suffer. Animal welfare inspectors, who insure that the animal welfare legislation is followed, use a checklist to assess the situation in the husbandry. This checklist contains only two levels of assessment, which may result in a lack of detail in the assessment of the husbandry. The objective of this report was to develop a more detailed model that provides an overview of the situation in husbandry.

Minskad trädtillväxt under Lilla sitiden? : En dendroklimatologisk jämförelse mellan nutid och 1600-talet invid trädgränsen i norra Skandinavien

During the period called Little Ice Age (1400 ~ 1900) the climate of northern Europe was in an annual year-basis overall colder than it was before and after that period. The numbers of short, cold and rainy summers and long, bitter-cold winters where often repetitive under the approximately 500-years the period lasted. In Scandinavia, the coldest time during this period is estimated to have started around the end of the 16th century and lasted to the beginning of the 18th century. Trees growing at the tree-line are limited by temperature for their annual growth and hence showing differences of growth during changes in the climate,  a method called dendroclimatology. The variations of growth can be read in the tree-rings either by analyze the width of the ring or by look into the density of the wood and is used to reconstruct past climates.

Flerskiktat papper : en sammanställning av historia, teknik och forskningsresultat

Until the beginning of the 1900:th century the paper making process was handicraft. The paper machines that have been developed since then are as impressing in size as fascinating when it comes to the technique. The process has always been improved to give a better paper for lower costs, with as short manufacture time as possible. Stratified forming has been a reality since 1830. From the beginning it was applied to board and paperboard.

En persona i frihetstidens politiska rum : Bonden i ridderskapet och adelns tankevärld i 1740-talets Sverige

This essay is a contribution to the process of reconstructing the meaning of a concept that has been long forsaken and somewhat forgotten. It examines the way in which the Swedish nobility perceived the politically active peasantry during the 1740s as an expression of the prevailing political culture of the period. The aim of this study is thus to understand a bygone world of thought that once existed in a very turbulent political culture. I focus on the words formed and articulated in the halls and rooms of the Swedish estates by which the thoughts, opinions and power of the Swedish government came to the fore. In doing so it is possible to say something about how the nobility, in their relationship with the peasantry, constructed an object which represented their perception of the Swedish peasant and what this meant.

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