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1213 Uppsatser om Scientific computing - Sida 12 av 81
Kustnära ekosystem som skydd mot naturkatastrofer : en litteraturstudie från ett riskhanteringsperspektiv
Research suggests that society's vulnerability to natural disasters along coasts could increase as a result of climate change, which is likely to lead to elevated sea levels and possibly an increase in the occurance of meteorological phenomena such as storms and tropical cyclones. Following the Indian Ocean tsunami disaster in 2004 and Hurricane Katrina in 2005, both of which received considerable media attention, empirical data has indicated that coastal vegetation might be able to protect and reduce damages to coastal communities during tsunami events and tropical cyclones.The aim of the essay has been to study the function of coastal ecosystems as protection against tsunami waves and storms from a risk management perspective, meaning that I have, through an overview of scientific articles, compiled current research on how coastal ecosystems can attenuate storm surges and tsunami waves, and analysed how this knowledge can be put into practice in coastal communities from a risk management perspective, i.e. if coastal ecosystems are a viable risk reduction measure, are practically applicable, and if so, how they could be applied.There is empirical evidence suggesting that coastal ecosystems, particularly mangroves, can reduce the strength of a tsunami wave, but full scientific consensus on this issue has not yet been reached. With regard to protection against storm surges, there is extensive scientific evidence that coastal vegetation can mitigate damages and reduce the height of a storm surge, although the wave has to traverse several kilometres inland through thick vegetation for the protection to be effective. A synthesis in the form of a figure regarding the many physical factors that influence wave development through coastal ecosystems has been created in an attempt to simplify and explain the phenomenon.The conservation and restoration of coastal ecosystems can be justified from a risk management perspective, but planting new forest belts for the purpose of disaster mitigation is quite unrealistic and can rarely be sustainable, since, for protection to be effective, the forest belt must extend several kilometres inland from the coast, and would thus likely prove difficult to implement along coastal societies..
Vasastaden och gentrifieringsprocessen 1970-2010
Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.
Jämförelse mellan MultiScat och konventionell beräkning av intensiteter till koncentrationer vid analys med röntgenflourescensspektrometri
In this master thesis work, a new method called MultiScat, is compared with the conventional method with alfa-correction, for computing concentrations from intensities in X-ray spectrometric analysis. The conventional model is a linear model, which only takes the photoelectric effect into consideration. It doesn't consider Rayleigh and Compton scattering even though it has a great impact on the measured intensities. Here MultiScat differs a lot. MultiScat is based on a solution of the Boltzmann transport equation.
Kulturprojektets karaktär : Perspektiv på ett lyckat resultat
Projects is the most common work model within the cultural area, but what is a cultural project? The definition of cultural projects is ambiguous. There are also no compiled information about what it means for culture to be pursued in project form. Scientific research about traditional project management and success criterias are wide-ranging. So is the scientific research about cultural studies and cultural policy.
Praxis och praktik i flerspråkiga tesaurer
A prerequisite of an international exchange of information is multilingual tools for information retrieval, such as the multilingual thesaurus. There is an ongoing discussion about the construction of, and the guidelines for, multilingual thesauri. In recent years the praxis as defined in ISO 5964 Guidelines for the establishment and development of multilingual thesauri 1985 has been the topic of a scientific discussion. It has been about how equivalence across languages is to be established when it comes to concepts, terms and relational structures. This masters thesis treats the praxis and practice of multilingual thesaurus construction.
Patienters upplevelse av omvårdnad efter suicidförsök : En litteraturöversikt
INTRODUCTION: Attempted suicide is very common. Those who arrive to a hospital by reason of attempted suicide need a nurse with qualifications in the care of suicidal patients. OBJECTIVE: The aim of this study was to compile and elucidate research which describes how patients in care for their attempted suicide experience the care that is received. METHOD: A literature review was chosen for this study. Scientific articles sought in the database CINAHL.
"Det är roligt!" : En studie om hur pedagoger använder estetiska lärprocesser i arbetet med naturvetenskap i förskolan
The purpose of this thesis is to investigate how teachers perceive that they work with science in preschool through aesthetic learning processes as tools both in the indoor and outdoor environment and make visible what the educators' underlying beliefs are that affect how they perceive aesthetic learning processes as tools used to deepen children's understanding of different scientific phenomena.This is an interview study using the phenomenographic approach as a means and method to make visible and report on teachers' views on how aesthetic learning processes can be used to extend preschool children's learning about science. The results are analyzed and discussed based on John Dewey's theoretical ideas about children's learning, aesthetics and science.The study clearly shows that teachers' views on aesthetic learning processes and how they can be used in the work whit science is very divided and in some cases unreflective. The most striking results are that teachers often are unaware that they make use of aesthetic learning processes because they have a more limited view of what it is than we have in the paper. All informants have science as a core subject. Their focus of the activity is located at the showing and visualizeing of scientific phenomena and some of them express that they submit the aesthetic learning processes to their colleagues or that they collaborate with someone who has training in some art form.
Inköp av cloud-tjänsten Software as a Service : En studie om hur beslutsprocessen gått till vid inköp av cloud-tjänsten på två små IT-företag
Studien avser att beskriva om och hur faktorernakärnkompetens, osäkerhet, nyttoaspekter och kontroll/flexibilitet påverkat besluten vid inköp av cloud-tjänsten SaaS. Uppsatsen är en kvalitativ studie som är baserad på semistruktuerade intervjuer med nyckelpersoner på två små IT-företag samt vetenskapliga artiklar och litteratur inom ämnesområdet. Studiens slutsats är att de båda företagen påverkats av några eller alla faktorer vid inköpen av cloud-tjänsten. Faktorn nyttoaspekter påverkade båda företagens inköpsbeslut i hög grad. Faktorerna osäkerhet och kontroll/flexibilitet påverkade inte alls inköpsbeslutet hos det ena företaget medan de till stor del påverkade inköpsbeslutet hos det andra företaget. Faktorn kärnverksamhet påverkade det ena företagets inköpsbeslut till en viss del och det andra företaget till en stor del..
Bakomliggande faktorer till presbyacusis; en litteraturstudie av mindre kända faktorer
Background: More than half of the elderly (65-84 years) in Sweden have problems with hearing. In some studiesit?s discussed if age related hearing loss or presbyacusis is a part of natural aging or if it depends on underlyingfactors.The purpose of this literature study was to analyse scientific papers which illustrate correlations between lessknown underlying factors and presbyacusis, defined from psychoacoustic and/or neurofysiological tests.Material and method; Literature study where scientific papers, relevant to the purpose of the study and thequestions at issue were found in the database PubMed.The result shows that cardiovascular disease, hormones, diet and drugs have an influence on presbyacusis. Thehealth condition of the individual and their lifestyle matters, likewise estrogen which according to the results of 2studies has a protective effect on hearing.Conclusion; The studies show that heart attack and high systolic blood pressure in women have a correlation topresbyacusis, but not in men, - the hormone estrogen, - some vitamins, antioxidants and diet have a protectiveeffect on hearing and studies show that smoking and alcohol have negative effects..
Implementation av ett kunskapsbas system för rough set theory med kvantitativa mätningar
This thesis presents the implementation of a knowledge base system for rough sets [Paw92]within the logic programming framework. The combination of rough set theory with logic programming is a novel approach. The presented implementation serves as a prototype system for the ideas presented in [VDM03a, VDM03b]. The system is available at "http://www.ida.liu.se/rkbs". The presented language for describing knowledge in the rough knowledge base caters for implicit definition of rough sets by combining different regions (e.g.
Färgens påverkan på mänsklig emotion vid gränssnittsdesign
Dagens teknologiska samhälle ställer höga krav på människan, bland annat gällande att processa information. Vid utformning av system tas det numera vanligtvis hänsyn till människa-datorinteraktionen (MDI) för att erhålla en så hög användbarhet som möjligt. Affektiv Informatik, som är ett utvecklat sätt att förhålla sig till MDI, talar för att utveckla system som både kan uppfatta och förmedla emotioner till användaren. Fokus i rapporten är hur ett system kan förmedla emotioner, via dess färgsättning, och därmed påverka användarens emotionella tillstånd. En kvantitativ undersökning har utförts för att ta reda på hur färger kan användas i ett system för att förmedla känslouttryck till användare.
En övervikt av kvinnor : En kvantitativ studie av bilder och skribenter på Aftonbladets viktsajt ur ett genusperspektiv
We have investigated the visual representation of men and women in Aftonbladet?s weight site. We have made a calculation of how many of the women and the men who were portrayed smiling/ not smiling, active/passive, looking into the camera/looking away from the camera and from which camera angle the picture is taken. We also kept statistic on the gender representation of the authors of the articles.Our investigation shows that Aftonbladet?s weight site has a distinct overrepresentation of women on their pictures, but also in terms of the authors of the articles.
Betalningsmodeller för det svenska elnätet : Vilken modell kommer att fungera bäst för konsumenten?
Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.
IT-Moln så långt ögat når? : En rapport om IT-stöd för kundarbetet i nystartade företag
Detta examensarbete behandlar ämnena molnteknik och IT-stöd för kundarbetet i nystartade företag och har främst utförts åt en extern beställare, företaget Approdites AB. Företaget önskade information och rekommendationer gällande potentiella tjänster för IT-stöd som de skulle kunna använda sig av i sitt arbeta med kunderna. Examensarbetet resulterar i dels en akademisk rapport bestående av bland annat teori, metod och tidigare forskning, dels en rapport/förundersökning innehållande rekommendationer om tjänster, samt riktlinjer åt företaget gällande de aktuella områdena. De båda rapporterna syftar till att förse företaget Approdites med relevant information om områdena i stort, samt ge förslag på tjänster som kan passa deras verksamhet. I den akademiska rapporten redogörs för hur grunden till rapporten med teori, metoder och andra viktiga områden lades..
Mitt Komponerande, Kreativitet Och Teknik : Självstudie av den egna kompositionsprocessen
This essay describes a single case self-study of a music composer in order to track the compositional process in real time. In the study the subject and the researcher are the same person. The study builds on previous empirical studies that have used methodological approaches such as analysis of computer-based digital data collection, verbal protocol and video observations. It deals with issues of the compositional process related to for example time consumption, number of artistic decisions, the different roles and skills of a music composer, and methods of research in the musical composition process. During three shifts the researcher worked as a music composer dealing with the issue of converting an audio sketch of a composition into a representative finished audio product.