Solid State Drives (SSD) blir idag allt vanligare som lagringsmedium och håller på att bli ett alternativ till magnetiska hårddiskar. Denna studie+ har undersökt hur man på bästa sätt kan utnjytta SSDer i en MySQL-databas. Undersökningen genomfördes med hjälp av experiment där prestandamätningar gjordes för att få en klar bild på i vilken konfiguration av SSDs som ger bäst prestanda i MySQL. Mätverktygen som användes var sql-bench och mysqlslap.   Resultaten visar att en databas på en enskild SSD presterar lika bra som en databas med  SSD-cache  under  majoriteten  av  mätningarna  och  visar  bättre  resultat  än resterande konfigurationerna som var en databas på hårddisk och transaktionsloggen på en SSD. .

In this Master thesis, microwave connections between circuit boards are constructed. The primary frequency band is the X-band (8-12 GHz). The purpose of the connections is to enable a more simple and cheaper way of mounting the circuit boards inside a container. The connections have been designed and evaluated, using different computer programs. A few prototypes have been built and measured.

In many earlier investigations a recall advantage of auditory lists spoken in a single voice has been found over recall of lists spoken in two alternating voices. One explanation proposed is an organization strategy which makes recall of alternating-voice lists so difficult. The strategy implies sorting same-voice words into same-voice groups at encoding. Based on this proposition, it was assumed that voice-by-voice recall would be better than recall in order of presentation, as then the recall instruction and the organization of items in memory would be in concordance. The present experiment tested and was unable to support this hypothesis.

Together with NCC and Sweco we measured the air-flow on a semi-detached house in Jönköping. When a pressure measurement is made, the house gets exposed to over- and under pressure. This is done in order to examine the houses climate shell. The climate shell of the semi-detached house we tested exceeded the required air thickness in BBR-2002, hence, measures have to be taken.This report also displays the importance of building air thick houses and what consequences a non air-thick house can have for the ones residing the house. A discussion of different measures is on for the addressed problems with the flow-measurement and the alternative construction-solutions.Furthermore we have described in this report of how to account for the performance of the air pressure, what kind of equipment we used and how we came up with the results.

Background: Running economy is one of the key factors to achieve top performance in endurance events. Little evidence exists for improving running economy using high-intensity interval training while running. Objectives: The purpose of this study was to examine how HIIT affects running economy and VO2max. Method: 14 well-trained athletes (age 35 ± 8,9 years, height 175 ± 11,7 cm and weight 69 ± 12,2 kg) were divided into two separate groups (HIIT and Control). HIIT group performed 3 HIIT exercises every week for 4 weeks and Control group continued with their separate training programs consisting of mostly traditional endurance training. Results: Running economy showed no improvement in HIIT (pre 38,62 and post 38,62 ml/kg/min, p=1.00) but Control improved (pre 45,41 and post 43,37 ml/kg/min, p=0,03). VO2max decreased in HIIT (mean 61,32 to 60,84 ml/kg/min) and in Control (mean 61,99 to 58,47 ml/kg/min)..

Denna rapport beskriver vilken kommunikationskvalitet i form av prestanda, tillförlitlighet och tillgänglighet som kan förväntas av datakommunikationsstandarden OPC. För att ta fram information om kommunikationskvalitén har en praktisk utvärdering i form av duglighetstester utförts. Den praktiska utvärderingen har gjorts med Bosch Rexroths OPC-server OPC.IwSCP och mot Bosch Rexroths styrsystem MTX High Performance. Rapporten ger svar på vilken kommunikationskvalitet som kan förväntas med specificerad OPC-server och styrsystem. Rapporten beskriver också hur några av parametrarna i OPC Foundations API:er påverkar kommunikationskvalitén.

Denna studie bygger på andraspråksinlärares skriftliga kompetens kopplad till syntaktiska och kommunikativa nivåer. I synnerhet är syftet att studera språkliga syntaktiska nivåer i texter skrivna av andraspråksinlärare som har behörighet att studera vid universitet. Ytterligare ett syfte är att studera om innehållet i texter kan förmedlas på ett kommunikativt och idiomatisk sätt.Den teoretiska ramen för att mäta syntaktiska nivåer som informanter i denna studie har uppnått bygger på processbarhetsteorin (Pienneman, 1998/ Pienneman & Håkansson, 1999). Studien visar att godkända texter i Svenska som andraspråk B och Tisustest uppnår nivå 4 och 5 på syntaktisk nivå. Studien visar också på variation av kommunikativ kompetens utifrån förmågan att förmedla ett central innehåll. Informanterna uppnår delvis målspråksnormen och delvis avviker från målspråksnormen i varierad grad vilket påverkar den kommunikativa kompetensen.

This paper is an event study on Initial Public Offering?s return behavior after the dot com bubble. Cumulative Abnormal Returns are used to measure the performance against a market index. The results suggest that the market correctly prices IPOs in the long run thus upholding the Market Efficiency hypothesis. Moreover, value weighted CARs show that large IPOs are more likely to outperform smaller IPOs, however in the long run there is an unpredictable pattern.

The forecast ability of four well-known exchange rate models for theSwedish krona is tested in this thesis. The models that are tested arethe purchase power parity, the real interest differential model, thesticky-price model and a productivity model. In addition to thebenchmark, the random walk, they are also compared to each other.They are all tested on three different horizons one quarter, two quartersand four quarters. The mean squared forecast error criteria and thedirection of change criteria are used for evaluation of the forecastability. Only in a couple of cases are the forecast ability of thetheoretical based models significant better than the random walk..

The purpose of the essay is to draw attention to my approach in relation to a boy I choose to call Emil, and how I can increase my understanding of his behavior. I explore conceivable reasons for why he breaks down so often, especially when other children are given attention. Is he simply unusually egoistic, and to a large degree only able to see to his own interests, or am I overlooking the real reasons for his actions.In order to explain the reasons for Emil?s apparent frustration in sensitive situations, I explore the significance of attachment theory. I argue about possible effects of Emil?s parents? way of describing and guiding him, as well as how I, and my colleagues, risk fulfilling and amplifying negative expectations.As the prime reason for his repeated sense of unhappiness seems linked to a lack of empathy, I explore different ways of understanding this, as well as how I might contribute to fostering compassion.

The Swedish bank Handelsbanken has, according to their own way of measuring, been more successful than a weighted average of their competitors during the last 38 years. They have also handled the recent financial crisis, as well as the one in the 1990´s, better than most other banks. This paper studies their management control system at branch level in order to identify the controls which have been enforced to ensure that a low risk level is retained in the lending. The controls that have been identified are; (1) A decentralized organization with the offices as profit centers where the manager has restrictions regarding risk level and the results are measured as K/I (cost/revenue). (2) The absence of bonuses and individual follow-up regarding performance measurement.

This master thesis was carried out at ELFA, one of the largest catalogue distributors of electronics in northern Europe. ELFA offers a wide selection of products such as measuring instruments, fuses and screwdrivers. The master thesis handles the possibilities of an increase in the internal flow of products. The background to this problem is ELFA?s acquisition of two new companies, which brought the product range in the warehouse from 55 000 to 80 000 products.

Gränslöst arbete innebär att ansvaret ligger hos individen och denne själv kan bestämma var, hur och när arbetet ska utföras. Prestationsbaserad självkänsla bidrar till utmattning och sömnsvårigheter och att använda sig av kompensatoriska strategier är ett sätt att hantera gränslösheten. Syftet med studien var att undersöka sambanden mellan prestationsbaserad självkänsla, strategier och återhämtning bland personer med gränslöst arbete. En enkätundersökning genomfördes. Deltagare var 93 män och 47 kvinnor som arbetar på ett privat företag inom säkerhet och utbildning.

In this Master thesis, microwave connections between circuit boards are constructed. The primary frequency band is the X-band (8-12 GHz). The purpose of the connections is to enable a more simple and cheaper way of mounting the circuit boards inside a container. The connections have been designed and evaluated, using different computer programs. A few prototypes have been built and measured.

Syfte: Gällande förvärv av kommunala hyresrätter har de flesta diskussioner som uppmärksammats, enligt vår uppfattning, rört ombild¬ningen från hyresrätt till bostadsrätt. Det är även det som teoretiskt finns beskrivet. Därför anser vi att vår studie kan bidra till att belysa fenomenet och öka vetskapen, om att hyres¬rätterna kan byta ägare och de facto byter ägare utan att upplåtelseformen ändras. Vårt syfte är därför att studera hur fastighetsköp gjorda av privata fastighets¬ägare från kommunala fastighetsföretag går till.Metod: Vi har i vår uppsats delat hermeneutikernas synsätt då vi är medvetna om att vår inställning och tolkning av studien kommer att påverka vårt resultat. Vidare har vi tillämpat ett kvalitativt tillvägagångssätt där vår studie grundar sig på intervjuer.