The examination of the adequate nature conservation methods in a natural reserve, to conserve a specific species and / or increase biological diversity is the subject of this study. This work is based on four species, that can be found during the Spring season, liverleaf, wood anemone, brimstone and woodpecker. The incidence and availability is studied and closely observed for these species in twenty forests, i.e. ten forests which are nature reserves and ten forests with the similar characteristics as the nature reserves habitat, but are not nature reserves in Gnesta mucipality, Södermanland. Measurements of the tree crown and the diameter of the tree trunks where noted to study how these factors could affect the outcome of the abundance and incidence of the four species.

In many developing countries, among them Vietnam, contamination of agricultural land is a major issue that has public health implications. A fast growing population, rapid urbanization and industrialization have led to air and water emissions of potentially toxic elements (PTEs), such as cadmium (Cd). Earlier studies have shown that individuals with low iron (Fe) and zinc (Zn) status absorb larger quantities of Cd than those of adequate nutritional status. The purpose of this study was to investigate and compare the Fe and Zn intake from the foods consumed by women (15-45 years) in selected households in two agricultural villag-es in the Red River delta in Vietnam. In one of the villages the residents were involved in metal (mainly Fe) recycling activity, whereas in the other village the residents had agricul-tural production as main source of income. Interviews, followed by food intake calcula-tions, were performed.

Pine twisting rust (Melampsora pinitorqua) is a parasitic rust fungus found all across Sweden causing damage resulting in lower quality and reduced tree growth in pine stands. In Sweden, the fungus is dependent on two alternate hosts; European aspen (Populus tremula) and Scots pine (Pinus sylvestris). Pine twisting rust has five different spore stages, two of them (uredinio- and teliospores) on the leaves of aspen. Injures on aspen caused by pine twisting rust is not extensive. On the other hand, when it infects the annual shoots of Scots pine it often results in a bent steam or even a top shoot breakage.

Intresset för människans matvanor har varit stort sedan lång tid tillbaka. Matvaneundersökningar görs för att utvärdera huruvida människorna i en befolkning får sitt närings- och energibehov tillfredsställt. Det finns fler olika sätt att utföra matvaneundersökningar som exempelvis Food Frequency Questionnarie (FFQ), kostintervjuer och kostregistrering. Syftet med denna rapport var att göra en jämförelse mellan två olika metoder (som Livsmedelsverket använder för att ta fram konsumtions- och intagsdata), för att se hur resultaten skiljer sig dem emellan. Den första metoden var Matkorgen 2010, vilken grundar sig på Jordbruksverkets konsumtions- och försäljningsstatistik, och den andra metoden var Riksmaten 2010-11, vilken är en fyra dagar lång kostregistrering.

Assessing the emotional state in animals is important in order to establish the quality of their welfare, therefore it is important to investigate under what circumstances animals experience these emotions and to find indicators of their existence. The aim of this thesis was to detect possible behavioural indicators for positive emotions in dogs. These behavioural indicators could be helpful to increase both dogs? and humans? overall well-being in today?s society since they could help e.g. dog owners and caretakers to interpret behaviours displayed by dogs and their intentions so they can respond accordingly.The subjects used were 9 research beagles and each dog participated in three different treatments, assumed to be experienced as positive situations, where communicative interaction was initiated with the dog by engaging in 1) physical contact (P), 2) verbal contact (V) or 3) both physical and verbal contact simultaneously (PV).

Sleep is essential for all mammals and they all have different sleep patterns. Wild horses normally spend 2-8.5% of a 24-hour period in recumbent position while stabled horses lie down 11-20%. To fulfil the need of rapid eye movement (REM) sleep the horse must lie down with support against the ground for the head. The lying behavior can be affected by external stimuli such as age, food intake, bedding materials and if the horses feel safe or not. This study investigates the lying behavior of horses on different bedding materials; wood shavings and filled rubber mats (HIT SoftBed®).

Frigoscandia Freezer AB have seen themselves as an entrepreneur company for a long time, but have lately begun to realise that they have to go against a more administrative era. With that insight they have begun to examine their enterprise in order to achieve this. The division Team Spare Parts has started a project with the intention of checking-up the inventory management, and improving it for the future. To get support for this and other point of views, they decided to let us do our exam thesis as a part of the project.The first part of the thesis deals with the appropriate inventory theory. All calculations in the other parts of the thesis have been based upon this.

The purpose of this Master's thesis is to study how children's and youth librarians mediate non-fiction books in public libraries. Our overarching research question is as follows: to which extent, how, and for what reasons do children's and youth librarians mediate non-fiction? We have chosen to limit our study to the practice of booktalking.In order to answer questions on extent we conducted a quantitative survey of booktalking children's and youth librarians in Skåne. To answer our other questions on behaviour and attitudes we conducted observations and interviews with six librarians who include non-fiction in booktalks for children in primary school. As a way to study behaviour we examined librarians' selection criteria and methods.

The purpose of this essay is to analyze and show possibilities how a city can grow into the scenery of a oak dominated landscape and how this encounter can add values to the city. The city in focus is Linköping, a city that is approaching one of Sweden?s largest oak dominated cultural landscapes. To this landscape high ecological and cultural values are connected. The recreational values are also of importance especially because of its urban location also because the city is mainly surrounded by flat agricultural land.

In this work I have tried to reconstruct the forest history within Särna-Idre forest common in northern Dalarna from the 19th century until present time. The Särna-Idre region has been an extensively used landscape for a long time. Pollen which indicates grazing has been found in samples orginating from the 10th century. Early travellers from the 18th and 19th centuries seem to have been passing trough a "used" landscape. Burned forests on naked ground are described as common. Also large areas are mentioned as undisturbed with lots of large trees, snags and dead wood.

Dagens lokala nätverk förväntas tillgodose allt högre krav på prestanda, högre överföringshastigheter, men även mobilitet. Användare behöver allt mer tillgång till det lokala nätverket samtidigt som de ofta behöver röra sig inom arbetsplatsens områden. Till detta hör även de, i vissa situationer, krav på snabba uppkopplingar av tillfälliga nätverk, t. ex. vid konferenser.

Frihandelsavtalet Nafta (North American Free Trade Agreement) slöts den 1:a januari 1994 mellan USA, Kanada och Mexiko.Synen på fri handel har alltid varit en laddad ideologisk fråga och det var främst fackföreningsrörelsen och miljörörelsen som kom att rikta den skarpaste kritiken mot Nafta. Den handlade bland annat om den höga mexikanska immigrationsnivån till USA, ökad arbetslöshet, att miljöfrågorna inte prioriterades och att avtalet skulle leda fram till större ekonomiska klyftor. Syftet med uppsatsen är att med enkomparativ ansats undersöka hur det mediala språkbruket i New York Times konstruerar och ramar in bilden av Nafta under åren 1993 och 2009/2010 och vilken ideologisk konsensus som dras.Genom att använda Entmans inramningsanalys (framing), van Dijks kritiska diskursanalys och Fowlers konsensusideologi, kunde bakomliggande ideologier och diskurser komma upp till ytan och intressanta iakttagelser av Nafta göras.Problemdefinitionen 1993 speglade ett Mexiko i djup ekonomisk- och social kris och USA:s ekonomiska problem med bland annat hög arbetslöshet och stora mexikanska immigrationsvågor. Problemet låg främst i den okunnighet och rädsla som genomsyrade den amerikanska befolkningens inställning till Nafta. I 1993 års artiklar fanns en genomgående repetition av den dominerande och homogena inramningen som bestod av en liberal marknadssyn där frihandel lyftes fram som det främsta framgångsreceptet och därmed blev Nafta den enda utvägen ur krisen.

Dagens samhälle står på gränsen till att införa RFID (Radio Frequency Identification) teknik i allt fler produkter. Än så länge har inte speciellt många konsumenter kommit i kontakt med den nya tekniken och de för- och nackdelar denna innebär. Företagen ser fördelar i sänkta lager-, hanterings- och inventeringskostnader samt möjligheten att kunna lagra information om kunder och deras vanor med hjälp av RFID teknik. Frågan vi ställde oss var om individerna som kommer i kontakt med den nya tekniken (konsumenterna) ser samma fördelar som företagen ser och om de tror att denna teknik kommer att påverka den personliga integriteten. Detta ledde fram till vårt syfte som innebar att vi ville studera individens syn på sin integritet i samband med ett framtida införande av RFID teknologi.

Herbicide resistance is the result of an evolutionary process where a population gradually changes from being susceptible to being resistant to an herbicide. The resistance mechanism is usually a change in the biochemistry of the weed, but in some cases changes in morphology or growth rhythm. The change is caused by random mutations. Two resistance mechanisms are found in black-grass; target site resistance and metabolic resistance.Black-grass is a tufty, winter annual grass weed, which is mainly found in milder climates. Black-grass is a big problem in Southern Europe.

The purpose of this thesis is to investigate the possibility to make small, cheap and ultra low power sensor platforms, connected in wireless networks for monitoring of home and industrial environments. The concept is based on ideas from our supervisor, Jerry Lindblom. The developed system consists of a generic platform for different sensors, a receiver and software. A GPRS module from RO Rollytech AB and a database from Gema Industri AB have been modified and used to demonstrate an example of a complete system. To the platform, it is possible to connect any resistive sensor and any sensor that can act as a switch.