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1023 Uppsatser om Shortest Expected Delay - Sida 21 av 69
Sfi-undervisningen genom tiderna : En studie av tre läro-och kursplaner
The aim of this paper is to analyze how syllabus plans for the course Swedish for immigrants have changed in the past 40 years. The paper focuses mainly on how different theories on learning in general and second language acquisition in particular have influenced the syllabus. Furthermore, the paper attempts to identify changes in how the teachers? role is described in the documents. My results indicate that syllabus plans from the 70?s were influenced by behaviorism, progressivism and the sociocultural view on learning, while syllabus plans from the 90?s and 00?s show only influences from the two latter perspectives.
Solenergi på Kvarnholmen
In recent years it has become more and more evident that man has contributed to much of the climate changes that have taken place during the last century. A major challenge today is to reduce emissions and energy usage at the same time as the global population is growing. To contribute to a better environment, Stockholms Stad has set at target of becoming fossil fuel free by the year of 2050. The construction of new districts is done with this goal in mind; energy efficiency and renewable energy sources are examples of methods to achieve this.Solar energy is considered to be a sustainable energy source and the most common techniques to harvest solar energy in Sweden are solar cells and solar collectors which produce electricity and heat respectively. This report aims to investigate whether an investment in any of these systems would prove to be economically beneficial at Kvarnholmen, a district under construction in eastern Nacka, Stockholm.Since the finished blueprints only cover a small portion of Kvarnholmen, the report examines the possibilities for a house where construction has already begun, Nya Kvarnen.
Miljöinformation från teori till praktik.
The purpose of this paper is to investigate the process of transferring information from science to "the field" of environmental protection in Sweden. I have studied four Swedish environmental organizations, Greenpeace Nordic, WWF Sweden, the Swedish Society for Nature Conservation and Friends of the Earth Sweden to see how they search/get information. I have also studied the Swedish Environmental Protection Agency and its role as sender of information, since it is the authority which is responsible for environmental information in Sweden. I have used information and communication theories as a help to analyse my results. While working on this paper I realized that my methods were not the best.
Tjocka kroppar och smala platser : om överviktiga personers erfaranheter av att vistas i offentliga rum
How is the fat body constructed in public spaces? This essay deals with the experiances of five participants, being fat in public spaces. The fat body is often constructed as "matter out of place", more or less expected to be invisiable in public spaces. But living with a fat body isnt all about assimilation, wearing black clothes to fit in or staying at home in fear of facing comments of your body. More than being a body constructed as improperiate in public spaces, the participants view can be described as "revolting".
Factors affecting crop insurance decision : a survey among Swedish farmers
Farmers are constantly facing changes, and the exposure to risk requires monitoring these changes. Financial risks, institutional risks, market risks and production risks are the different risk categories that the farmers face. Production risks stems from factors the farmer cannot affect or is beyond his control. The crop?s output is the basis for the primary income of agricultural operations, which is why it is important for farmer to manage their production risk.
A tool to reduce the consequences of production risks is crop insurance.
Towards sustainable rye cultivation : soil carbon and yield modelling for crop rotations with rye
Using the Introductory Carbon Balance Model, ICBM, five different crop rotations with rye
1. Rye-Ley-Ley-Rye-Beans-Rye
2. Rye-Rye-Rapeseed-Rapeseed
3. Rye-Ley-Ley-Rye-Potatoes-Rye
4. Rye-Rye-Potatoes-Wheat
5. Rye-Rye-Potatoes-Beans-Wheat-Rye-Potatoes-Rapeseed
were tested theoretically in four different cultivation scenarios
? Straw left on the field, biogas digestate added as fertilizer. Labelled ?+straw+BD?.
? Straw left on the field, only synthetic fertilizer. Labelled ?+straw-BD?.
? Straw harvested, biogas digestate added as fertilizer.
Dragbrotschning av invändiga profiler
High-precision cutting in metal is very complicated, a lot of parameters affect the result: what geometries to be manufactured, surface roughness and tolerances to be achieved, batch size etcetera. When pull-broaching internal parts this might be even more important, than in any other cutting operation. Everything is machined in one single stroke and the general technology is built in to the tool, therefore big investments must be made to change the process. Milling for an example: one piece at a time is machined away, and a lot of parameters can be changed easily.It is very high pressure on the cutting-edge when the broach is cutting. To achieve the specified product and to avoid unnecessary toolwear it is essential to use the right cuttingfluid and the right cuttingspeed for an example.
Konstruktion och reglering av flygande plattform
This report describes the manufacture and control of a flying platform. The report describes the basic and fundamental theories required to get the platform flying. It touches on subjects such as A/D-conversion. PWM-control and PID-control. The sensors used in the platform are a gyro and an accelerometer.
IKT - 2000-talets mentor? : En jämförande studie mellan manliga och kvinnliga pedagogers uppfattning om IKT i undervisningen
During the past decade Information Technology (IT) and Information and Communication Technology (ICT) have become the main tools in teaching. Authors and early educators who are treated in the study talks about how technology has come to change the school's approach to teaching and didactic tools. The technology has also affected students´ and teachers´ ways to work because the technology's versatility makes demands on the user's expertise and competence. The technical skills have long been associated as a male domain, where men are expected to master the technology´s versatility. These expectations are not the same for women.
Uppföljning och analys av Stockholms stads solcellsanläggningar
During 2007 the City of Stockholm installed five grid connected photovoltaic systems. The aim of this master thesis is to quantify the amount of produced energy and recommend routines to collect and analyse production data, to make production data accessible by the public and to gain experience for future installations.The total amount of produced energy until March 2009 is 227 000 kWh, with an annual rate of 150 000 kWh. The expected annual rate was 148 000 kWh.All system owners are positive about their plants and see economical benefits in scaling up such systems.The installations need very little attendance and maintenance, however it is recommended that an alarm function is installed for automatic feedback in case of a system failure. All future systems should be inspected during full operation to determine if the actual capacity is matching the installed capacity..
Redovisningskonsekvenser vid förändringen av pensionsredovisningen
AbstractAuthors:Stefan Harrå and Magnus BjörkAdvisor: Markku PenttinenTitle: Accounting Consequences of the change in pension accounting Background to problem: When the revised IAS 19 comes into force January 1, 2013, it means that two of the three accounting principles for defined benefit pension plans are disappearing, including the corridor method. The corridor method has made it possible for companies to defer its actuarial gains and losses. Now that the corridor approach abolished then the unrecognized actuarial gains and losses immediately be covered by equity, which involves very large amounts of some companies. Why the amounts have grown so big is much because of the discount rate. The discount rate is a controversial parameter, and there is disagreement on how it should be fixed.Purpose: The purpose of this thesis is to examine the accounting implications this will have for the company applied the corridor method, and if there is some parameters in the actuarial assumption that is more important than others.Methodology: The thesis has mainly been based on a qualitative research through qualitative interviews with a small sample that is affected by this change.
Konfigurationshanteringsverktyg (CM-verktyg) och CM-kriterier, dess tillämpning för presentation av migreringsdata
The purpose of this thesis is to present and describe which criteria, according to the systemfamily Configuration Management, should be met when developing a CM-tool to handlemigration data.ACT is a tool developed by Microsoft to gather information about, analyze, test and mitigateapplications in a network when migrating the IT-infrastructure of an organization to a newoperating system. The organization that is being studied wants to present the data about theanalyzed applications in such a way, that a customer can choose what to mitigate and migrate.The goal is therefore to develop a prototype (CM-tool) that will present this data.The study has shown that ACT lacks certain requirements stated by the organization when itcomes to presentation. But when it comes to the rest of the functions, ACT performs as expected.The investigation resulted in specifications and technical solution for the new CM-tool. CMcriteriafor migration data was put forth and parts of the prototype were also developed..
Betavärdet som mått på systematisk risk inom aktievärdering
The beta value is frequently described in theory and is a well known factor to quantify the systematic risk in shares through the CAPM model. Initially, this study describes the advantages and difficulties with the estimating process and the problematic nature of the assumptions and descisons included in published beta values.An alternative method, Bottom-up beta, to estimate the beta value that probably has not been tested under Swedish circumstances is applied. The problems and decisions that have to be made to derive an alternative value are studied in detail through six separate steps. I have chosen nine companies at the Stockholm Stock Exchange where this method is used. The result showed that the systematic risk were higher at five shares and lower at four, compared to the published values.Finally there is a discussion about the practise, usefulness and opinions concerning how to estimate and interpret the beta value to determine the expected return..
The effect of domestication on insect resistance in cotton : bioassays with the insect herbivores Spodoptera littoralis and Agriotes spp.
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.
Val av tidpunkt för markberedning vid naturlig föryngring under skärm av Pinus sylvestris i Svealand : Timing of scarification when using natural regeneration in seed tree stands of Pinus sylvestris in Central Sweden
This thesis is built on a field study that was carried out in two seed-tree stands near by Götbrunna in Uppland, Sweden. The aim was to examine if scarification carried out in spring time could generate a more dense seedling establishment when using natural generation, than scarification carried out in autumn. It was also investigated whether there were differences in mortality the first season between the two plot-types. Plots were established block-wise with 50 blocks (pairs) on each site. The spring scarification was made with a hoe during 22-23 of April.