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1451 Uppsatser om Ratio of peak hour to average hour - Sida 57 av 97
Droppbevattningens inverkan på kvalitet och kvantitet hos Solanum tuberosum L i jämförelse med konventionell spridarebevattning :
A literature study and a field trial have been carried out in order to investigate the physiological response of potato plants to different soil moisture levels. Higher yield, quality and number of tubers can according to the literature be obtained if constant high soil moisture is kept during major parts of the growing season. A field trial was set up where drip irrigation was used as an alternative to conventional irrigation techniques to maintain high and constant soil moisture. The application of water in the drip irrigated area was monitored and adjusted on a daily basis so that the soil moisture stayed as close as possible to the recommended level. The sprinkle irrigated area was irrigated according to traditional practices with approximately 35 mm every 7th to 10th day depending on the whether.
Om individanpassad matematikundervisning i praktiken : en intervjustudie med tre pedagoger i grundskolans tidigare år
Studies show that the performance of Swedish students in the subject of mathematics is to be considered somewhat average. The government has therefore decided to assist with extended project funding to schools on a local level in order to improve these results.Schools will, unlike before, practice teaching suited for the individual needs of students based on their previous experiences, knowledge level, language comprehension and their environment. This is also clearly stated in the Swedish school curriculum.My survey shows how three teachers in primary school actually work towards individualized teaching of mathematics and what methods they prefer. This survey also answered what these teachers considered to be the obstacles and opportunities with individualized teaching methods. The difference in approach of how to practice this has also been documented.The survey, based on interviews and class observations, have been analyzed and compared to previous research and theories in the field of teaching practices.
Hur låter ditt varumärke? En kvantitativ studie om matchande bakgrundsmusik i sällanköpshandeln.
This paper examines the impact of the congruence between the background music and the brand image on the customer behaviour in retail store. The essay's hypotheses are built after the famous S-O-R-model that unveils if congruence background music affects the customers' emotions, brand image and response. The aim of the study is mainly to answer if the congruent background music stimuli in the retail store environment will affect the customer's emotions and if it will increase spent time and money. The congruent background music has been selected through two pre-studies based on consumers' brand image. A quantitative study has been conducted where triangulation was applied in a real store environment, where in total 201 surveys was collected for the main study.
Exosomes as a potential mechanism of intercellular spread of prion protein
Structural rationalizations and regionalization of the agricultural sector in Sweden has lead to unevenness in thedistribution of plant nutrients. Nutrients are lost from crop producing farms as harvest products are sold, whilefarms with animal production often have manure in excess of their needs. In addition to this the retention ofwater and nutrients in naturally occurring wetlands has decreased due to a reduction of wetlands in number andsize in the agricultural landscape. This increases nutrient levels in agricultural run-off and causes eutrophicationas well as nutrient losses from arable soils. One potential solution to both problems would be to store nutrientrichsurface water from agricultural areas and use it for irrigation of agricultural crops.
Om ekonomiskt bistånd och kriminalitet - En studie om socialt stöd och dess effekter på misshandel och stöld
Since criminality started to rise steeply in most western welfare states following the second world war the relationship between welfare support and criminality has been debated. For a period of time thought to be an effective preventive measure against crime welfare support has since from time to time come to be seen by some as ineffective and in some cases even as a contributing factor to the rise in crime. It remains a contested issue as new theories, such as social support theory, which is employed here, attempt to contribute to the understanding of what effects general welfare has on overall crime levels. As a connection which is relatively well-researched in the USA, altough still not yet fully understood, this study strives toward a better understanding by testing the relationship in a swedish context. The relationship might not function in the same way considering that the US is a fundamentally different welfare-regime than Sweden, liberal and social-democratic respectively.Untangling the relationship is attempted by employing a multivariate regressionanalysis on a crosssectional dataset consisting of data from 2012 covering 247 of Swedens total of 290 municipalities.
Celebrity endorsement är väl ingen sport : En studie om hur sportmodevaruma?rken anva?nder celebriteter i varuma?rkesbyggande syfte
Titel: Celebrity endorsement a?r va?l ingen sport ? En studie om hur sportmodevaruma?rkenanva?nder celebriteter i varuma?rkesbyggande syfteFo?rfattare: Erik Hagberg & Niklas RadhammarHandledare: Thomas HelgessonNiva?: Kandidatuppsats, Marknadsfo?ring 15 hp, VT 2012Nyckelord: Varuma?rke, varuma?rkeskapital, celebrity endorsement, celebrity endorser, sportmodevaruma?rke, varuma?rkesbyggandeProblemformulering: Hur arbetar sportmodevaruma?rken pa? den svenska marknaden med celebriteter i sina varuma?rkesbyggande processer?Syfte: Syftet med denna uppsats a?r att med utga?ngspunkt i den teoretiska referensramen och en abduktiv fallstudie av fem varuma?rken, kartla?gga hur sportmodevaruma?rken arbetar med celebriteter i varuma?rkesbyggande a?ndama?l pa? den svenska marknaden. Vi vill a?ven analysera positiva effekter och risker vid anva?ndning av celebriteter i varuma?rkesstrategier.Metod: En kvalitativ ansats med ett abduktivt angreppssa?tt har anva?nts, da?r beslutsfattare fra?n fem varuma?rken har intervjuats inom uppsatsens a?mne. De fem fo?retagen a?r adidas, Craft, Tenson, Peak Performance samt Unihoc.
Ambulanssjuksköterskan och höftfrakturpatienten : smärtlindring och trycksårsprevention : en forskningsöversikt
Introduction: Anxiety and depression are common among patients enrolled in psychiatric outpatient care. Ear Acupuncture is an alternative form of treatment that has been shown to relieve anxiety and depression in previous studies.Aim: To evaluate ear acupuncture as a group treatment for depression and anxietyMethod: A psychiatric outpatient clinic has been offering group treatments with ear acupuncture for anxiety and depression for 5 weeks. Participants of the study have answered self-rating scales Montgomery Åsberg Depression Rating Scale, Beck Anxiety Inventory and Sheehan Disability scale before and after the treatment period. Material was collected in the period 2008-2012 and has been analyzed in SPSS.Results: Data from 31 patients were included in the study. The results from the study showed a significant difference, between the measurements before and after treatment, with a reduction of the average values in the three different scales.Summary: From this study, it is difficult to draw any conclusions about the effect of ear acupuncture.
Vem bär kostnaden för regeländringar inom finansiella marknader? : en kvantitativ studie ur aktieägarnas perspektiv
As a consequence of a turbulent financial market with recurring recessions, the Basel regime was developed, an institutional change with the purpose to create enhanced financial stability through increased capital requirements and increased scrutiny of internal procedures. The Basel regime is an often recurring element in social debates where various aspects are discussed, one of which is whether it maintains its purpose to secure financial stability or whether it is cost effective, and if not, who gets affected by these potential costs.The majority of previously conducted research within this area agrees with the opinion that changes in the regulatory framework within the financial markets, such as the Basel regime, has led to reduced risk of bankruptcy for the banks which has contributed to increased global financial stability. However, research illustrates that these types of changes in the regulatory framework impose a financial burden leading to contradictions in the division of these costs between costumers and shareholders. This dissertation has been conducted from a shareholders perspective, out of which the study ?s three hypothesis has been created from.The data in this study is built upon the stock price from the three largest available banks? shares (based on total assets), in the 26 countries which are represented in the Basel committee from (2007) to (2013).
Geotermi i Ungern : Undersökning av Ungerns energisituation inriktat på geotermi samt kapacitetsfaktorn för det största geotermiska värmeverket i Mellaneuropa.
Hungary?s share of renewable energy in 2010 was 7.9 %, and their renewable energy goal for 2020 is 14.65 %. Geothermal energy is one option that could help to achieve the goal, since Hungary has favorable bedrock, the temperature gradient is above average and thepermeability is high. Today Hungary is importing just over half of its primary energy supply. Because of political conflicts between nations Hungary wants to expand its own production of energy.
Lust att lära : En modell om motivationsfaktorer för undervisning
Tediousness, fear and boredom are all part of everyday?s life for a student. How can a teacher counteract these feelings of boredom and replace them with a feeling of pleasure of learning? Students have to be motivated and want to go to school every day. By comparing student?s experiences of motivation this essays purpose is to create a theory about factors for motivation in education.
Automatisk query expansion: en komparativ studie av olika strategier för termklustring baserade på lokal analys
Automatic query expansion has long been studied in information retrieval research as a technique that deals with the fundamental issue of word mismatch between query and document. The purpose of this thesis is to compare the retrieval effectiveness of different strategies for automatic query expansion. The strategies are based on local analysis of the corpus and use statistical information from the local document set to extract terms that suppose to adapt themselves to each individual search and therefore appear to be searchonyms to the index terms. The strategies compared are: association clusters, metric cluster and scalar cluster. Baseline queries of 24 topics are expanded using terms from the different clusters and searches are made.
Ökad resurseffektivitet i kraftvärmesystem genom säsongslagring av värme
Increased resource efficiency in an energy system could result in large economic and environmental benefits. Tekniska verken i Linköping AB (Tekniska verken) is responsible for the district heating network in Linköping. Their vision is to create the world?s most resource efficient region. An important step towards this vision is more efficient usage of produced heat, something which could be achieved through integration of a seasonal heat storage in the energy system.
En komparativ litteraturstudie av olika termkällor för query expansion
The purpose of this thesis is to make a comparative literary study of ten laboratory experiments with different kind of sources for query expansion terms. The experiments are grouped according to categories of term sources, which are: search results, collection dependent knowledge structures, collection independent knowledge structures and one that combines the two last mentioned sources into one. To enable a comparison all other variables were held as constant as possible. There is the improvement measured in mean average precision, which is used to measure the various sources potential. The result from the study shows a strong connection between the kind of source for the expansion term and improvement of the result.
Långsiktig förändring av fosforhalt och skördenivåer för jordar med höga P-AL-tal : en analys av försöksserien "Exploatering av höga fosfortillstånd"
The field trial Exploatering av höga P-AL-tal (Exploiting P in heavily P dressed soils) started in 1982-1983 and included seventeen study sites placed across Sweden.
Each site included three treatments, one unfertilized control (A), one aiming at replenishment of harvest removal, i.e. fertilized with 15 kg P ha-1 year-1 (B) and one over-fertilized (C) with 30 kg P ha-1 year-1. In this thesis data from the five longestrunning study sites are analysed based on four hypotheses. The hypotheses stated
that in soils with high P-AL values and a pH over 6.0 P-AL will not decrease over time in the control (A) or in the replenishment treatment (B), that P-AL and P-HCl
in the top soil will increase at all sites for the over-fertilized treatment (C) and that yields will not decrease as long as the P-AL is above 12 mg P 100 g-1 soil.
My conclusions from the analysis of data from the selected sites are as follows:
- A pH above 6.0 cannot guarantee a stable P-AL value in an unfertilized
but phosphorus-rich soil.
- The P-AL of unfertilized soils decreased faster at lower soil pH than at
higher pH.
- In the replenishment treatment (B) the rate of P-AL decrease seems to fall
at a pH of 6.5. However, the influence of the soil type cannot be ignored.
- P-AL and P-HCl did not increase in all over-fertilized treatments.
Lexikonbaserad Cross-Language Information Retrival: Utvärdering av queryeffektivitet
This thesis discusses main problems associated with dictionary-based Cross-Language Information Retrieval as lexical and translational ambiguity of query terms, translation of compounds and phrases, dictionary limitation. The purpose of the study is to investigate how query structure influences the effectiveness of CLIR regarding performance of three query types: original query, unstructured query and structured query. Query structuring refers to the application of #syn-operator to group query terms. The study comprises an experiment that was performed in the InQuery IR system with TrecUta database that contains 550,000 news articles from different American newspapers. 24 topics were used for the experiment.