Emissions of radionuclides to the atmosphere can lead to wet deposition on plants in the event of rainfall. An increased level of radioactivity in the plants may occur due to interception and retention of the radionuclides. If the content of the plants is above the threshold limit value, entire yields may have to be destroyed. In order to prevent contamination or decrease the content countermeasures can be taken. The impact of the biomass, leaf area index (LAI) and growth stage of the plant on the interception and retention is important to know in order to decide which countermeasures to use. Weather may also be an important factor. In this work the interception and retention of 134Cs and 85Sr by spring wheat, ley and spring oil-seed rape was studied.

A plant's defensive ability against herbivore attack can be influenced by many different factors, one of them being domestication. During human selection to improve the yield of plants, the resistance against herbivore attack can have been lowered, due to a trade-off for use of resources between these traits in the plants. In this thesis I investigated the effect of domestication on resistance against herbivorous insects in cotton plants. I used different varieties and species of wild and domesticated cotton in three different experiments. A feeding assay was conducted, the mortality, development time and pupal weight of larvae of the Egyptian cotton leaf worm Spodoptera littoralis was studied. In a second experiment the preference of the root-feeding beetle Agriotes spp.

Emissions of radionuclides to the atmosphere can lead to wet deposition on plants in theevent of rainfall. An increased level of radioactivity in the plants may occur due tointerception and retention of the radionuclides. If the content of the plants is above thethreshold limit value, entire yields may have to be destroyed. In order to preventcontamination or decrease the content countermeasures can be taken. The impact of thebiomass, leaf area index (LAI) and growth stage of the plant on the interception andretention is important to know in order to decide which countermeasures to use.Weather may also be an important factor.In this work the interception and retention of 134Cs and 85Sr by spring wheat, ley andspring oil-seed rape was studied.

The decomposition of organic carbon in drained peat soils is a major source of carbon di-oxide in Sweden. A big part of these drained peat soils are used in agriculture and it is a big challenge to slow down their decomposition. It has earlier been thought that less tilling and higher water table levels would decrease the activity of soil microbes and thereby the decomposition, but recent experiments has showed that this has little or no effect. In this bachelor thesis a field experiment was made on drained peat soil with ley, outside Björklinge, Uppsala municipality, Sweden. The experiment was carried out in May 2011. The objective was to develop a method to examine how the net exchange of carbon diox-ide from plant covered peat soil is affected by temperature and photosynthetically active radiation (PAR).

This essay is about power, democracy, solidarity and equality in preschool. I examine three different situations to determine if I could have acted more sensibly in my interactions with the children. I portray: a ?children?s choice meeting? where children select an activity, a so-called emotional gathering and a dialogue at the lunch table about a popular movie that we plan to watch together afterwards. The purpose of this essay is to examine which norms and values form the basis of my actions, and if so, how these lead me to use my power to shape the children.I have chosen to use hermeneutic and norm-critical perspectives where I investigate and examine my norms and values and how I react and act, both consciously and unconsciously.

Vattenfall district Heating power plant in Uppsala produces district cooling with absorption heat pumps which leads to a large amount of waste heat that has to be cooled with evaporative cooling towers. The Environmental Court has ordered Vattenfall to survey the possibilities to recover the heat, which is the focus of this thesis.The study begins with an overview of the system, and conditions and limitations for waste heat recovery is examined. In the next step alternatives to recycle the heat is evaluated, either by direct recovering or by upgrading.First, the technical possibility of each alternative is discussed, and then the operation time and the amount of recovered heat is calculated. Those alternatives which are possible are brought further to an economic analysis.The cost of investment for each alternative constitutes the basis for a present value analysis. The results are put together in a table where the total amount of recovered heat is compared with the present value for the different alternatives.

This thesis was performed at Vendig AB which is a company that develops and sells products such as belt scrapers for conveyor. The thesis is divided into two parts, one part where it´s investigated which tension force is required to tighten Vendig AB´s scraper Hampus against the belt in a correct way. The second part is called mechanical design and here a new and more compact tension device is developed.Field studies has been conducted at a couple of Vendig AB´s costumers to get a knowledge base about how Vendig AB´s products are used, how they function and the environment they operate in. During one of the field studies the force between the scraper and the belt was measured. The result from the measurements, together with a report from LKAB [1], were evaluated and summarized in a table.

The following essay aims at the interplay between regional och municipal growth work, and theway cultural heritage is used in growth work strategies. The main issue has been whether theregional strategies are followed up in the municipal strategies, which has been investigated bymeans of question which impact the region?s strategies has at the local level.The essay draws upon an instrumental perspective on cultural heritage and cultural environment,here defined as instruments in the national development and growth efforts. Three publicationsthat highlights potential roles of cultural heritage and cultural environment to act as instrumentsin the regional and municipal development and growth efforts has thereby been selected astheoretical models. These roles has further been summarized in a tabular form as a schematicdivision of main themes with sub-categories, used as a framework for deciphering the regionaland municipal strategies.A content analysis of available strategies at both regional and local levels have been used as amethod for investigating the issue, where the role of cultural heritage and cultural environment(as defined in the schematic table) has guided the reading.

Undervisning om multiplikationstabellen består främst av lärande genom repetition eller strategi. Syftet med litteraturstudien är att utifrån forskning undersöka och jämföra inlärning av multiplikationstabellen genom strategi- och repetitionsbaserad undervisning. Studien avgränsas till elever i årskurs 1 till 6. Materialet samlades in genom en iterativ sökning på åtta databaser för vetenskapliga publikationer. Det insamlade materialet bestod av sjutton vetenskapliga publikationer.

The big change is a project where I created patterns on fabric. It is a collaborative project with Lotta Niemi. She studied fashion and textile designers and tailors from the Swedish School of Textiles in Borås and University of Technology in Sydney. The collaboration was to create designs on fabric for her upcoming clothing line for women, Fall / Winter 2013. The clothes will be sold online, in stores in Sweden and Japan.For Lotta Niemi?s clothing line, I wanted to create exclusive designs, rich patterns that worked out handmade and digital.

The residential and service sector in Sweden accounts for approximately 38% of the total energy usage and Sweden has an aim to reduce the total energy use by 20% by 2020 compared to 2008, which means residential sector will have to improve energy efficiency. As part of that a law was instituted by the Swedish parliament that all properties must have an Energy Performance Certificate (EPC) to thereby give the property owners a greater insight into energy use in their buildings and propose recommendations for energy-efficiency measures. On the EPC, a value on the building's energy performance in terms of energy use in kWh / m2 per year is declared, of which electricity is a share of it. Instructions on what to include in the amount facility electricity for running the facilities is regulated by the authority for building, Boverket while SVEBY has made an interpretation of the regulations in their report "Brukarindata bostäder" where they have a table on what should be included in the amount and what not to include.This report is a study of two similar apartment buildings, where one of the buildings recently underwent renovation, to see if the declared amount of energy for electricity, in the EPC, is consistent with the measured value, and whether there has been any reduction in facility electricity in the renovated building after the renovation.The result shows that the measured value of the building electricity was 2.6 kWh / m2 per year, 28,8 %, lower than the declared value in the building that have not undergone a renovation. Calculation of values from previous years (2011) by the same percentage of facility electricity as in the results of the measurements, 56.7%, it becomes clear that the declared value for facility electricity in the EPC of the renovated building do not correspond with reality and that there has been an increase in use of facility electricity after the renovation..

Syfte ? Att skapa en ny produkt inom kategorin mingelbord, som erbjuder fler användningsområden för att bli mer anpassad för privatpersoner och i hemmamiljö. Att genom en innovativ konstruktion och en kombination av moduliserade- och hantverksdelar skapa en unik produkt på marknaden.Metod ? Grundmetoden för det här arbetet är den första fasen i en produkts liv: produktutvecklingsprocessen; identifiera behovet, planera designprocessen, ta fram kundkraven, utveckla konceptet och till sist utveckla produkten.Resultat ? Designkoncept på ett mingelbord har tagits fram och redovisas i bilder. Dessa bilder är resultatet av en uppmodellering i datorn med hjälp av 3D-progam.

This work is about euthanasia and how to use it on horses, dogs and cats. A description for each animal is done, about when it is time, why, which methods can be used and who is allowed to use them, how and where it shall be done. The methods we have concentrated on are: - Chemical destruction and the most common drugs for euthanatize horses, dogs and cats. - Physical disruption of the brain activity by a captive bolt, only for horses. The captive bolt only makes the horse unconscious and must always be followed by cutting off the vena jugularis. Then the horse dies because of loss of blood. No matter which method used for euthanizing, the animal must be declared to be dead by the operator before other measures. The testing criteria for death: muscle relaxation and cyanosis, cessation of reflex activity and pupillary dilatation, cessation of respiratory activity and cessation of all cardiac activity.

In this thesis a concept for floor hatches for foam pits has been developed. Since there is an existing solution that is powered by hydraulics and is expensive, the goal was to develop a cheaper solution, as simple as possible.A number of different concepts were developed and evaluated. A concept with five sections that are pulled to the side and stacked on each other was chosen as it was thought to have the lowest risk of crush injuries and to be easiest to manage and control. In the opening behind the foam mattress a lifting table is placed to regulate the height of the stacked sections.To be allowed to be installed in the floor of sports halls the sections must be dimensioned according to the construction standards for these types of buildings. Different dimensions of beams in steel and wood materials were evaluated and of those, who lived up to the requirements of the standard, a concept was chosen.

Användarupplevelser är en gren inom användbarhetsområdet som på senare år kommit att studeras alltmer. Orsaken till detta är att ny teknik medför andra krav på produkter än att produkter som sådana ska vara lätthanterliga. Produkten kan likväl ha som syfte att vara rolig att använda sig av.Studiens syfte var att studera användarupplevelser beträffande Surface-computing teknologi.Företaget Interactive Institutes innovativa Surface-computing produkt Virtual Autopsy Table fick exemplifiera Surface-computing teknologi i publika miljöer. Genom att använda denna uppmärksammade produkt som underlag är syftet att undersöka vilka designmoment som kan anses vara kritiska för upplevelsebaserad design. Studiens frågeställning blev:Vilka riktlinjer kan tas fram för att vägleda en designprocess att bli mer fokuserad påanvändarupplevelser vad gäller Surface-computing system?Med utgångspunkt från studiens datamaterial, så var en del av studiens syfte att ta fram riktlinjer.