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238 Uppsatser om Reaction - Sida 1 av 16

Skolsituationen för elever med betyget MVG i matematik : En fallstudie av fyra elever i grundskolans årskurs 9

This thesis has been focused around the Diels Alder Reaction with the goal to design an enzyme catalyzed Reaction pathway. To achieve this goal computer aided enzyme design was utilized. Common traditional methods of computational chemistry (B3LYP, MP2) do not do well when calculating Reaction barriers or even Reaction energies for the Diels Alder Reaction. New calcu- lation methods were developed and tested. This was the focus of the first part of the thesis, by choosing a small system, extensive and heavy calculations could be done with CBS-QB3.

Datorbaserad analys av enzymdesign för Diels-Alder  reaktioner

This thesis has been focused around the Diels Alder Reaction with the goal to design an enzyme catalyzed Reaction pathway. To achieve this goal computer aided enzyme design was utilized. Common traditional methods of computational chemistry (B3LYP, MP2) do not do well when calculating Reaction barriers or even Reaction energies for the Diels Alder Reaction. New calcu- lation methods were developed and tested. This was the focus of the first part of the thesis, by choosing a small system, extensive and heavy calculations could be done with CBS-QB3.

Atopisk dermatit hos hund :

This student report is about canine atopic dermatitis It includes a description of the immunologic mechanisms and how the Reaction affects the body. The symptoms are various, most common is pruritus, erythema and alopecia and directly associated with the immunologic Reaction. The diagnostic process includes symptoms, physical findings, differential diagnosis, intradermal test and serological test. The options of treatment are several and vary for each patient. The report includes hyposensitization, medical treatment such as corticosteroids, antihistamin and cyclosporine, topical treatment, fatty acid supplements and environmental treatment. The prognosis is individual for each patient due to their different response to the treatment. It may take a while to find the right combination of treatments to achieve satisfactory control of the disease..

Är Marknaden Varse om Varsel? : En studie om den svenska kapitalmarknadens reaktion på varsel om uppsägning

The purpose of this study is to examine the capital market Reaction generated by layoff announcements. The study takes place in Sweden and tests 138 news concerning layoffs which are categorized according to a content analysis. They are divided as: positive or negative news. The layoffs are also divided into three subgroups with varying sizes: 0,98 percent or less, between 0,99 and 4,49 percent or 4,5 percent or larger. The study uses an event study method to measure the Reaction of the capital market.

Låna på eget ansvar? Franska folkbibliotekarier om medieurval i samspel med låntagare

The aim of this master thesis is to examine which criteria are generally used to guide pub­lic librarians in their acquisitions' decision. The study went ahead in France, principally at La Bibliotheque municipale de Lyon. It also includes a view of some special library services in the social field.Twenty persons were interviewed and an attempt was made to divide their answers into three sections: acquisition routines and criteria for media purchase, how to receive the library visi­tors and their influence on the acquisitions, and, finally, the librarians' own opinions on the matter. One important question was whether censorship is applied and in that case, would it be a deliberately way of acting or rather a spontaneous Reaction, more or less unconscious.Censorship in real or manifested through a self-preservative Reaction turned out to be a factor closely dependant on the library's financial situation. Many librarians affirmed they would find useful some kind of a written practical library acquisition policy..

Personalnedskärningar och aktiepriser : En eventstudie av sambandet mellan personalnedskärningar och aktiepriser under perioden 2008-2012

Purpose: The purpose of this thesis is to investigate whether abnormal stock returns could be identified as a result of a layoff announcement during weak economy.Method: An event study methodology.Theory: Efficient market hypothesis, signal theory.Empirical results: Quantitative data from observations of stock prices in thirty two companies listed on the Nasdaq OMX Stockholm, in the period 2008 -2012.Conclusion: The results indicate that the market Reaction was negative because there were negative abnormal returns on the Stockholm Stock Exchange during the period 2008-2012 in connection with the layoff announcements. The market Reaction was milder when staff reductions were carried out as a result of a restructuring and stronger when staff reductions were carried out as part of a cost reduction program.The layoff announcements elicited different market Reactions depending on the company's industry affiliation. The most negative Reaction was in the Healthcare industry. Negative abnormal returns were lower in industries Industrials, Consumer Services and Consumer Goods. There were no abnormal returns for shares of companies in the industry Financials.

En proteomisk utvärdering av olika metoder för att samla uterussekret hos sto :

This study was performed in order to evaluate if the method of collecting uterine secretion by the tampon-method is representative for use in studies of uterine secretions in mares. Uterine secretion collected by tampon in six mares was compared with secretion collected by aspiration, regarded to be a native sample, at the Institution of Obstetrics and Gynaecology, SLU, Uppsala. Proteinanalysis was made at the Department of Farmaceutic Bioscience, toxicological unit, Uppsala University. Cytological smears and ultrasonography was used to assess if the tampon had caused an inflammatoric Reaction that could influence the protein content of the samples. The results suggest that the tampon and aspirat method do not differ when it comes to proteinconcentration, but the distribution of proteins differ between these different collection methods. This difference could not likely be explained by means of proteins due to an inflammatory Reaction from the tampon, since neither the cytological nor the ultrasonographical examination gave any indications of inflammation.

Den gråtande journalisten : En studie av publikens syn på subjektiv nyhetsrapportering

The aim of this study is to examine how the public responds to the journalists? use of subjectivity in the reporting of broadcasting news. The investigation is a qualitative study based on nine interviews with respondents in ages of 21 to 25 from different parts of Sweden. After showing five examples of news reporting with a subjective approach, the respondents gave their look on the use of subjectivity. The theoretical frame of the investigation is founded on the theory of framing (de Vreese, 2005; Entman, 1993) and the discussion concerning the terms objectivity and subjectivity (e.g.

Reaktionskrafter i dragarmarna på en traktors trepunktslyft : Teori och praktik

Tractors of today come equipped with a CAN-system. A CAN-system sends information from sensors to electronic control units who process the signals. The sensors measure several interesting parameters such as force, pressure and speed for various components of the tractor. This thesis discuss a force sensor which is placed in the pivot of the tractors three point linkage, the sensor measure the horizontal Reaction force from the load that the tractor is exposed to. Signals from this sensor can be used to measure the force from any implement that the tractor is exposed to during an operation.

Reagera och agera: Styrka och snabbhet i den manuella responsen för emotionella stimuli

In this study I investigated whether the strength in the manual response for emotional and neutral stimulus search arrays can explain some of the difference in Reaction times (RT:s) for emotional stimuli, or not. Earlier, perceptual, cognitive and attentional processes has mostly been used to explain the variance in RT:s. Thirtythree individuals were asked to, as fast as possible, detect a target picture among distractor pictures in 3 rows x 4 columns arranged search arrays. The pictures were categorized in fear relevant animals (snake, spider) and neutral animals (cat). The results showed, more correct responses for cat target.

Rätt person på rätt plats: Sambandet mellan personlighet, yrkesval och arbetstrivsel

This study investigated the relation between Extraversion and Conscientiousness with job satisfaction and job selection in the two occupational groups of telemarketing and administration. The study also set out to explore the relation between social desirability as assessed with an Implicit Association Test (IAT) and total Reaction time on the IAT. The questionnaire was administered over the Internet to forty-one subjects (24 women and 17 men) in the age range 16-65. Results indicated that people working with telemarketing tend to be extrovert while people working with administration often are conscientious. Job satisfaction correlated with Extraversion in the telemarketing group.

Evaluation of specificity of a walnut antiserum and detection of English walnut (Juglans regia) in food with ELISA and Real-Time PCR

Nuts of all kinds are common ingredients in food. For nut allergy sufferers the frequent use of nuts cause problems and "hidden" nuts in food products may elicit allergic Reaction when such foods are consumed. Methods for detecting and quantifying walnut (and other nuts) with high sensitivity and specificity are therefore very important.The objective of this project was to verify the specificity of a rabbit antiserum against walnut with immunodiffusion and to determine the size of the dominant walnut antigens with Western blotting. In addition, a commercial sandwich ELISA for walnut quantification was validated and compared with a qualitative real-time PCR.The rabbit antiserum proved to be less specific but after absorption with cross-reacting nuts and seeds it showed high specificity. The ELISA kit reacted, except for walnut, with pecan and slightly with other nuts and seeds tested.

"Got Skills...?" : En kvalitativ studie om kompetensutveckling baserat pa? StarCraft II

The use of computer games has grown exponentially in the past few years and StarCraft II is one of the most popular e-sports today, played by millions of people worldwide. This study investigates the game?s effect on skills, as perceived by the players of StarCraft II.The study was conducted by using an empirical survey and interviews. The skills being investigated were both physical and mental in their nature. The conclusion was that the majority of players perceived that their skills regarding Reaction speed, multitasking, APM, analysis and strategy were increased the most, while there was a smaller change in social skills and language skills.

Demonstratortest av gassensor baserad på tryckt organisk elektronik och jonledande papper

Researchers at Karlstad University have developed a method for making paper ion conducting. The reasearchers want to test this technique in various applications and produce products that make use of the ion-conducting paper. Hopefully this will drive the development forward and result in new applications for the ion-conducting paper.This study was to test the possibility of manufacturing a gas sensor of conducting paper along with electrodes of conductive polymers printed on the paper. By comparing the paper sensor with an electrochemical cell in which the electrodes of conductive polymer replaces electrodes of metal and ion-conductive paper replaces the liquid electrolyte in the electrochemical cell, it was hoped that it would be possible to measure the oxidation and reduction Reactions that a gas could introduce at the electrodes.It was shown that it is possible to measure a potential difference in the range of 0.3 V to 0.5 V between the electrodes when exposing an electrode to 100% oxygen. The Reaction that takes place is relatively slow and the Reaction rate is partly due to the distance between the electrodes.Since the sensor can measure oxidation and reduction Reactions it is possible that, in further development of a sensor, the sensor can be made ??into a versatile sensor with more applications than gas measurement as there are many more ways to oxidize or reduce the electrodes than by exposure to oxygen.During the study there have been discussions and meetings held with various companies in the sensor industry to be able to specify what the market demands of a sensor made ??of paper and the requirements that must be placed on the sensor for it to be interesting for the companies..

Födoämnesallergi : Föräldar och barns upplevelse av förskolans bemötande

In this essay I have investigated how two families, with children, who have food allergies, experience what support and what treatment they get in preschool for their difficulties. I have interviewed two children and two parents. The study shows that the interviewed parents believe that more knowledge in the community and among staff in preschool, about food allergies, is needed. Parents wish that the staff should write an action plan that describes how to deal with children who have food allergies and that preschool invites parents and children to record results. It is important to consider an inclusive attitude so that children don?t feels excluded.There is some research going on around this subject and researchers agree that the incidence of food allergies in the society is growing, but that it is difficult to be able to present a certain theory why, and what the underlying factors are.

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