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2849 Uppsatser om Mathematical content - Sida 34 av 190

Användbarhetens roll i de mobila webbshopparna

This paper reports a study on the usability of e-commerce accessed through smartphones. There is much research in the usability of mobile interfaces and many sets of design patterns have been created but a few studies are available for specific domains, and in this report we focus on mobile e-commerce. In this study a framework is developed for how to design mobile e-commerce interfaces with a high degree of usability. Furthermore, the study also contributes a method to how other specific domain can develop a framework with general standards to work from when creating a web interface. By examining two sets of design principles and 14 design patterns, we evaluate which ones are critical in the design of a mobile e-commerce interface for achieving a high degree of usability.

Utvärdering av en beslutsåterkopplad kanalestimator för tredje generationens mobiltelefonisystem

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER). An improvement is only seen when the BER becomes much lower than what is common in real situations. In conclusion DDCE is complicated, involves many mathematical operations and gives insignificant improvement of SNR when BER takes common values. It is legitimate to question if it is possible to use the method in a real mobile phone system..

Kvällspressens nyhetsvärdering på förstasidan : En sensationell utveckling

Our premiss in this study is the escalating competition in the swedish newspaper market, which have become an issue regarding smaller editions for the newspapers, and some scientist have claimed that this has brought an sensational touch to their news. With this in mind, we have studied if a sensational touch is brought to the two biggest Swedish newspapersAftonbladet?s and Expressen?s first pages. Our purpose with the study is to look into the newspapers development regarding a more sensational newsworthiness on the front page over time. The use of quotes, images and news themes is indicators to measure the development.Trough a content analysis from three different years, 1972, 1992 and 2012 we have measured the data with the computer program SPSS.

Min kompetens är viktig! : En kvalitativ studie om specialistsjuksköterskans kompetens inom onkologisk vård

Background:An increasing number of patients with an oncology diagnose will be seen in the future. The oncology care is complex and in great need of nurses with a high level of competence. There is a lack of previous research in the specialist oncology nurses competence and therefore knowledge of their skills can reveal an understanding of their competence.Aim:The aim of the study was to describe the competence of the specialist oncology nurse.Method:Four oncology nurses and two directors of oncology care were interviewed. The interview text was analyzed using qualitative content analysis.Results:The result showed that the oncology nurses had developed six different competences within different areas. These competence areas were assertiveness, patient-centered care, ethical and moral-, pedagogical-, to lead and develop- and theoretical competence.

Nyheternas födelse : En kvantitativ undersökning av källor till lokala nyheter i lokaltidningar

The purpose of this thesis was to study the origin of the local news in local newspapers. Do the news originate mostly from the police, the municipality, from press releases or from the reporters own ideas? We also wanted to find out what kind of content predominated in texts with its origin in press releases respectively the reporters own ideas. Of course we also wanted to find out if there were any similarities or differences between the two studied newspapers.We used a type of constructed week, but with non random selection instead of random. We chose one of each weekday the newspapers were published and studied the news covered in the papers that specific day.

CMS, optimerade för programmerare. Eller hur kan ett sådan skapas.

Datorspel genomgår en konstant utveckling mot mer komplexitet och i takt med att de virtuella spelvärldarna växer behövs mer och mer effektiva metoder att navigera genom dessa. I denna rapport undersöks möjligheten att automatiskt generera navigationsinformation och ett förslag presenteras på hur en algoritm för detta skulle kunna se ut..

Förslag till kväverening i Forsåsystemet genom våtmarksetablering

The last hundred years humans have drastically changed the amount of available nitrogen in nature. Today human activities release twice as much available nitrogen as all natural processes are doing together. We also have degraded nature´s possibilities to take care of nitrogen through the draining of wetlands and straightening of rivers. In order to regain the potential of nitrogen retention in the water systems there now requires a reshape of the landscape we live in. A planned expansion of the mining activities in Garpenberg, Dalarna, would double the content of nitrogen in the waters below the mine.

Vakna lokalbedövade patienters upplevelser

Patients who undergo surgery receive general anaesthesia or any form of conduction anaesthesia during the operation. For most people it is strange, unexpected and for many something completely new to be a patient and undergo surgery. Awake conduction anaesthetic patients? experiences from the intraoperative period were little studied. The purpose of this study was to examine awake conduction anaesthesia patients? experiences.

Förståelse för och attityder till matematik

Studiens syfte är dels att undersöka vilken förståelse för matematik ur ett samhällsperspektiv som elever på en mellansvensk kommunal gymnasieskola har, utifrån den beskrivning av ämnet som finns i de svenska styrdokumenten. Syftet är också att undersöka vilken inställning till ämnet eleverna har, hur attityden påverkas av vänner och familj, samt vilken betydelse media har i synen på matematik.Studien bygger på en enkätundersökning där 130 respondenters svar har behandlats. Genomgående i analysen har gruppen med elever som läser ett yrkesinriktat program jämförts med de elever som studerar på ett mer teoretiskt inriktat program.Resulatet visar att elevernas förståelse för matematikens roll i samhället är fullt acceptabel, men att det är få som nått ett fördjuad insikt. En klar majoritet anser att de förstår syftet med matematikundervisningen.Trots att en dryg trejedel tycker att matematik är det viktigaste ämnet så finner cirka hälften inget intresse för ämnet. En sjundedel säger sig t.o.m.

Framtidens resurs eller dagens problem? En studie om institutionens syn på ungdomar och dess effekter.

AbstractIn this thesis we analyze how institutions describe the dichotomy between ?problem? and ?resource? when dealing with young adults. We also analyze the consequences of this dichotomy as it involves the younger generation's participation and group identity in today's society. Dichotomies and New Institutionalism Theory is the base for this case study completed in Malmö, Sweden. We have done eight qualitative interviews with politicians and employees in Malmö municipality and a quantitative content analysis of reference documents from both the Malmö and Swedish governments.

Klichéer : Några unga människors uppfattning om klichéer i vardagens samtal

This thesis is divided into two parts. Part one contains a general description of the flexographic printingtechnique. Part two contains a more detailed investigation in the areas substrate, inktransfer and trends, which are only briefly commented in part one, and conclusions and comments.The major problem concerning substrate is washboard. This phenomena can be limited if one can control and minimize the amount of glue applied in the single- and double facer, use high surface weight on liner, use low surfaceweight on fluting and control the humidity during the conditioning of the corrugated board. Corrugated board with a smooth surface radically increases the quality in print.

Undersökning av ackommodationsförmåga och brytningsfel hos varmblodiga travare :

Skiascopy is used to objectively determine the refractive power of the eye. Except for a Swedish study in 2007, where 93 horses of different breeds and ages were examined with respect to their refractive status, most studies on equine refraction were published about one century ago or more. The objective of this study is to examine the refractive status of healthy warm-blooded trotting horses. Skiascopy was performed in 117 horses in total, aged 3 days to approximately 22 years old. In a pilot study, it was determined whether young horses were able to accommodate or not during skiascopy. The horses in the pilot study were all younger than 14 months. In foals younger than 1,5 months we saw a significant difference in the skiascopy result in the right eyes before and after topical atropine was instilled, but not in the left eye.

Time Machine Computing for Media Improvisation

C3LOOPS is an application for DJs and VJs based on surface interaction. A system is said to be based on surface interaction if it presents content on a two dimensional, endless surface that a user navigates through zoom, pan and incremental text filtering where processing is tightly coupled with the content without breaking the workflow. C3LOOPS is designed to encourage improvisation and collaboration. During improvisation changes occur rapidly. Allowing navigation through time as well as the two spatial dimensions of an interaction surface the possibility of unlimited undo operations opens up.

Undersökning av utökade användningsområden för Lotsbroverkets slam

Lotsbroverket is the largest wastewater treatment plant on the Aland Islands and it isdesigned for handling wastewater from approximately 30 000 persons. In 2011,Lotsbroverket produced about 2800 m3 of dewatered sludge. The sewage sludge that isproduced is transported to a contractor where it is processed to eventually be used e.g.in the construction of green space. This study aims to investigate available applicationoptions in terms of the sewage sludge that is produced in Lotsbroverket. The main aimis to study the feasibility of using the produced sewage sludge as a fertilizer in theagriculture of the Aland Islands.The sludge already fulfills limit values for heavy metals in accordance with the Act"The Aland Government´s directive on the use of sewage sludge in agriculture." Inorder to clarify the sludge content of pharmaceutical and organic substances it isrequired that the substances are identified and a risk assessment is performed.

Effekter av två olika hösilagefoderstater på tarmfloran och träcksammansättningen hos häst och gris :

The aim of this study was to investigate if the botanical composition of haylage affects pH, dry matter content and microbial composition of the faeces in horse and pig and ileal environment in pigs. Two separate studies were conducted where pigs and horses were fed two diets containing haylages with different botanical composition. The first haylage was from a tilled land dominated by timothy and meadow fescue and the other haylage came from a meadowland with a large inclusion of dandelion, 25 % and common couch. The dry matter content (70.8 % and 73.0 % respectively) and the pH-value (5.7) were similar in both feeds. The first study was made as a three-periods switch-back study with 7 Standardbred horses. In the first and the third period, 7 and 9 days long respectively, the diet consisted of the haylage from the tilled land, oats, sugar beet pulp, soy bean oil meal, lucerne pellets and brewers yeast.

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