This report evaluates whether an interpreted high-level garbage collected language has enough information about its memory behaviour to make better cache decisions than modern general CPU hardware.With a generational garbage collector, depending on promotion algorithm and generation size, around 90% of all objects never leave the first generation. This report is based on the hypothesis that, because of the low promotion rate, accesses to higher generations are sufficiently rare not to benefit from caching.To test this hypothesis, we built an operating system with a Scheme interpreter in kernel mode, where the interpreter controls the cache. Generic x86 PC hardware was used, since it allows fine-grained control of cache decisions.Measurements of execution time in this interpreter show that disabling the cache for generations higher than the first does not give any performance gain, but rather a performance loss of up to 50%.We conclude that this interpreter design is not an improvement, but cannot conclude that the hypothesis is false in general. We suggest building a better CPU simulator to gather more data from which to make better caching decisions, moving internal interpreter data structures into the garbage collected heap and modifying the hardware to allow control in the currently rigid dimension of where data is cached---for example separate control of instruction and data caches and separate data caches for different areas of memory..

The question whether controlled vocabulary or natural language free-text terms is the most effective search strategy has occupied researchers in LIS for many decades. This Masters thesis is an empirical study which aims to compare these two search strategies in LISA Library and Information Science Abstracts, an online bibliographic database. 22 topics from the discipline of Library and Information Science were constructed and out of each topic one query for each search strategy was formed. Queries in natural language were formed with terms from different sources, for example dictionaries, while queries in controlled vocabulary were built with terms from LISAs electronic thesaurus. The measures used in this study were precision, relative recall pooling method and overlap.

The Catholic Church launched several crusades during the medieval ages in order to regainthe holy lands and spread the word of God. Their main enemy, the Muslims had grownstronger and needed to be suppressed. This common enemy united Europe under the banner ofthe Catholic Church. In order to fund these crusades the church turned to the wealthyEuropean kings and lords and asked for funding. In return the kings received an indulgenceletter, and also greater respect from their subjects because of their new appreciation from thepope.

The construction process which is used today while constructing residential buildings has for along time remained unchanged. Unfortunately the development process has gone away frombecoming industrialized and instead most of the work is done at the construction site. In thisrespect this is a worse alternative because the project outcome will be more expensive and theconstruction time will be longer. Skanska?s vision is to have a process which is more like the oneused in small residential buildings which is fully industrialized.The constructing process for residential building involves more parties and therefore it becomesmore complicated.

In this study, pollen contamination (measured by the number of seeds pollinated by pollen not belonging to any of the clones on the seed orchard) is compared between open pollination and isolated pollination environments in a Scots pine (Pinus sylvestris) seed orchard called Västerhus, located outside Önsköldsvik. In this seed orchard a tent experiment is taking place. Skogforsk has built six large tents covering 12-14 trees with each tent. Fertilization patterns were compared between one tree in a tent with a supplementation of pollen from five clones not represented in the tent and another tree of the same clone subject to open pollination outside the tents. By using DNA markers the paternity was determined for 48 seeds from each tree.

In this study, pollen contamination (measured by the number of seeds pollinated by pollen not belonging to any of the clones on the seed orchard) is compared between open pollination and isolated pollination environments in a Scots pine (Pinus sylvestris) seed orchard called Västerhus, located outside Önsköldsvik. In this seed orchard a tent experiment is taking place. Skogforsk has built six large tents covering 12-14 trees with each tent. Fertilization patterns were compared between one tree in a tent with a supplementation of pollen from five clones not represented in the tent and another tree of the same clone subject to open pollination outside the tents. By using DNA markers the paternity was determined for 48 seeds from each tree.

This thesis describes how the development of a mechanical enclosure to an alarmsystem proceeded. The project was made on behalf of Inferno Light Indusec AB.The goal set to this housing would offer a home alarm in which Indusec?s uniquesound system would give the customer a new alternative on the market. They wantedto, among other things, create an aesthetically but at the same time affordable alarm.The aesthetic theme is something that is missing in today?s market.

Environmental subsidies are used as incitements to farmers for development of sustainable land use. In 2014, applications for funding constructed wetlands were not available. This paper examines the environmental consequences of this lack of funding in one intensively cultivated region Skåne län, southern Sweden.A review of wetland applications between year 2007-2013 show that the average rate of applications has been 31 projects per year with a wetland size of 4,48 ± 1,61ha per project (mean±95% CI). Based on interviews, the result suggests that the lack of funding in one year leads to between 102 and 140 ha of constructed wetlands that is not built. This correspond to a total loss of increased nitrogen retention capacity between 6,0 and 91,7 tons/year and a loss of increased phosphorus retention capacity between 0,17and 2,1 tons/year in the drainage basins of Skåne.Further the interviews show that continuity of environmental regulations and funding is important for the farmers? interest in environmental measures.It is concluded that the total loss of increased retention capacity is small compared to the annual transport of nitrogen and phosphorus in the drainage basins.

The objective of this Bachelor thesis is to analyze moving patterns in Norrköping?s municipality. The main aim is to analyze the migration to, from, and within the municipality of Norrköping, not only for the population as a whole but also for groups of special interest. Another aim is to compare migration patterns in Norrköping with those of other municipalities in Sweden.Several data sets have been used, each of them extracted from population statistics carried out by Statistics Sweden (SCB).Data mining using association analysis is used for finding the migration pattern within Norrköping?s municipality and several questions are examined using descriptive statistics.

Students today, in the banking system, are the least loyal group. Students are also the most costly group due to the large investments, made by the banks, for them. Banks have generalized all students in one category and have adapted their offering regardless of students? social statues. As the students banking needs are dependent on their position in their lifecycle, generalizing them in one group is not optimal.The aim of this thesis is to investigate those factors which influence students? choice of bank.

During spring 2005 I, Hanna Brogård, undertook my bachelor degree project in furniture design. The supervisors were Glenn Henningsson at Njudex in Vrigstad and Leó Jóhannson, teacher and examiner at Carl Malmsten CTD in Stockholm.The project was based on three elements:Design concept for upholstered furnitureCooperate together with a sofa producer for professional supervision and to learn more about industrial production and upholstery techniqueLearn more about furniture history of styleI contacted a sofa producer called Njudex, in the province of Småland, who became my work partner during this project. Eclecticism is the name of the furniture styles that became popular during the mid-nineteenth century. It develops from a new, rich society class arisen from industry and trade. The trend is based on the escape from reality to dreams of foreign countries, past centuries and nature.

Context. In today?s society we use smart cards in many areas, NFC is a smart card technology that allows contactless interaction between a reader and the tag, the tag is often in the form of a card. NFC can be used for various payment methods or as access card to a building which makes life easier. In previous studies, the technique has proven to be weak to attacks using an NFC reader connected to a computer.

An individual's social capital consists largely of the social networks that may consist offamily, friends and acquaintances. The social network is of great significance on olderpeople's physical and mental health. Aim: The overall purpose is to examine the knowledgeof social network and the health of the elderly. Method: Litterature review, using threedifferent databases, CINAHL, PubMed and Scoupus for searching of articles, with differentcombinations of keywords. Results: Different types of social networks have both positive andnegative effects on health.

Present master of science thesis has been carried out at the Swedish Road Administration consulting services (Vägverket Konsult) in Karlstad. The purpose of the study is to investigate how well the calculated drawdown of the groundwater table predicts the actual drawdown when the road and railway gates at the studied sites are built. For this purpose the groundwater levels at the three bridges were measured during 6 months. The bridges in question are two railway bridges situated in Ölme and Ulvåker and one road bridge crossing a pedestrian and cycling path in Lidköping.In Ölme the calculated area of influence was smaller than the measured one. It differed up to 30 meters, i.e.

The purpose of this study was to examine how the foster parent's need of support is provided. The study was built upon a qualitative method with interviews with ten foster parents. More specifically, its aim was too find out how the foster parents themselves looked upon how their need of support, and from whom the support was provided. According to the law, it is the social services obligation to provide the foster parents with all the support they could need. The picture the media sends out is different from what it should be because according to them, the social services fall short in the follow-up and also the support of the contact with the foster parents.