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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
151

Tsenguluso ya u shumiswa ha luambo lwa u nyefula kha lushaka lwa Vhavenda

Muthige, Azwifarwi Gladys January 2014 (has links)
Thesis (MA. (African Languages)) -- University of Limpopo, 2014 / This research focuses on the use of derogative language in Tshivenḓa discourse. Derogative language is the language used in a society in showing critical or disrespectful attitude. In each and every society, people use derogative language or words in addressing different unacceptable behaviours. Derogative language is used in schools, churches, homes, to mention but a few places. There are factors compelling Vhavenḓa people to use derogative language. In this regard, one may mention social, political, and economic factors. For instance, hardworking people who have amassed wealth through their efforts are sometimes labelled scornful names such as madyavhathu (cannibals) and keepers of maḓuxwane (zombies). Ultimately, the use of derogatory language affects people socially and psychologically.
152

Internet Usage in Science Classrooms in Hawaii Catholic High Schools

Churach, Daniel N. January 1999 (has links)
The major purpose of this study was to determine what associations exist between student Internet usage in secondary science classrooms and the way students perceive their classroom environment. A second purpose was to study how the Internet was used in each classroom involved and to see what effects these various approaches had on classroom environments. The study included a sample of 431 students in five Hawaii Catholic high schools and data were collected using site observations, student-teacher interviews, and a questionnaire using the Constructivist Learning Environment Survey, a student attitude towards science scale, and Internet usage questions. Site observations were carried out periodically over an academic year, with a high degree of communication between the sample teachers and the author. / Some three dozen students representing all five high schools were interviewed in depth in an attempt to qualitatively clarify the quantitative findings of the total sample. The results of the study indicate that there is an association between greater student Internet usage and a positive perception of classroom environment. Additionally, the students in this sample express an almost total acceptance of the Internet as an educational resource. Student interview data suggest that this new technology has moved past the innovative stage and into the mainstream of daily educational routine. It seems that student attitudes, as well as individual feelings of self-control and personal relevance seem to be enhanced by the use of the Internet, allowing students to construct unique meaning on a personal level. Finally, there is a high association between student Internet usage and teacher Internet usage, that is, the attitude and behaviour of individual teachers concerning their Internet usage has an influence on the extent to which their students use the Internet for academic purposes.
153

High frequency errors in KFL and pedagogical strategies

Shin, Seong-Chul, School of Modern Language Studies, UNSW January 2006 (has links)
The problematic areas of the teaching of Korean as a foreign language have been largely neglected in the past. Few studies combine the following three aspects: 1) an examination of learner Korean; 2) the provision of substantial linguistic and pedagogical explanations; and 3) the devising of teaching or learning strategies based on empirical evidence. By studying KFL learners and their language production, insights can be gained relating to the learning of KFL and instructors will be able to provide appropriate corrective measures. This study investigated errors produced by KFL learners, focusing primarily on high frequency orthographic, lexical and grammatical errors in written language production. The study attempts to identify key areas of difficulty in learning Korean, to investigate the possible cause of difficulties and to provide more adequate information for the teaching and learning of KFL. To this end the study uses two classes of textual data and employs both statistical and descriptive analyses. At an orthographic level the study has identified four main error categories: 1) mismatch in three series consonants, 2) mismatch in vowel sounds, 3) misuse of nasals and laterals, and 4) omission and addition of ???h???. Overall the cause of key error types correlates strongly with the differences in sound quality and sound patterns between Korean and English, with some intralingual features. At a lexical level, the study found nine types of errors including 1) semantic similarity, 2) lexical misselection and 3) overgeneralization. The findings suggest that learners have a great deal of difficulty in differentiating lexical items with similar meaning and in selecting words appropriate to particular contexts or situations. As for grammatical errors, the study identified the five most active error categories, which made up more than 80% of the total grammatical errors. An overwhelming majority of grammatical errors and case particle errors in particular were errors of substitution. Many high frequency grammatical errors had distinctive triggering factors such as particular types of verb and sentence construction. The findings of the study have several pedagogical implications. First, there are key common errors for English L1-KFL learners and these common errors need increased linguistic and pedagogical attention. Secondly, the results reinforce the need to pay more active attention to the usage of the main case particles, along with the triggering constructions causing substitutions. Thirdly, the findings suggest that different types of analysis should be done in order to facilitate a plausible description of the problematic KFL items. The study argues that despite being problematic, the items discussed in this thesis are learnable and worthy of being taught with explicit or intentional strategies and that there is a need for pedagogically effective and adequate instructional input to maximize the potential of the learner???s language development in Korean.
154

Combining web data mining techniques for web page access prediction

Khalil, Faten January 2008 (has links)
[Abstract]: Web page access prediction gained its importance from the ever increasing number of e-commerce Web information systems and e-businesses. Web page prediction, that involves personalising the Web users’ browsing experiences, assists Web masters in the improvement of the Web site structure and helps Web users in navigating the site and accessing the information they need. The most widely used approach for this purpose is the pattern discovery process of Web usage mining that entails many techniques like Markov model, association rules and clustering. Implementing pattern discovery techniques as such helps predict the next page tobe accessed by theWeb user based on the user’s previous browsing patterns. However, each of the aforementioned techniques has its own limitations, especiallywhen it comes to accuracy and space complexity. This dissertation achieves better accuracy as well as less state space complexity and rules generated by performingthe following combinations. First, we combine low-order Markov model and association rules. Markov model analysis are performed on the data sets. If the Markov model prediction results in a tie or no state, association rules are used for prediction. The outcome of this integration is better accuracy, less Markov model state space complexity and less number of generated rules than using each of the methods individually. Second, we integrate low-order Markov model and clustering. The data sets are clustered and Markov model analysis are performed oneach cluster instead of the whole data sets. The outcome of the integration is better accuracy than the first combination with less state space complexity than higherorder Markov model. The last integration model involves combining all three techniques together: clustering, association rules and low-order Markov model. The data sets are clustered and Markov model analysis are performed on each cluster. If the Markov model prediction results in close accuracies for the same item, association rules are used for prediction. This integration model achievesbetter Web page access prediction accuracy, less Markov model state space complexity and less number of rules generated than the previous two models.
155

Optimal use of rainwater tanks to minimize residential water consumption

Khastagir, Anirban, anirban.khastagir@rmit.edu.au January 2008 (has links)
Melbourne, the capital of Victoria Australia leads the world in having the highest quality drinking water. The Victorian State Government has set targets for reducing per capita water consumption by 15%, 25% and 30% by 2010, 2015 and 2020 respectively and has announced stringent water restrictions to curtail water demand. In this resource constraint environment it is opportune to look for alternative sources of water to supplement Melbourne's traditional water supply. In Melbourne, legislation has been changed to make it possible to use rainwater harvested from domestic tanks for non potable purposes. The annual rainfall in Melbourne's metropolitan area varies from 450mm in the West to 850mm in the East to over 1000mm in the North East mountain ranges. The objectives of the current study are to develop a methodology to estimate the optimal size of the rainwater tank at a particular location considering the local rainfall, roof area, demand for water and the reliability of supply (supply security) required; to quantify the rainwater volume that could be harvested at site using domestic rainwater tanks to minimise pressure on the potable water supply secured from traditional catchment sources until the desalination plant is commissioned in 2013; to analyse the efficacy of rainwater tanks to reduce the stormwater runoff and improve the quality of the stormwater that will otherwise flow into urban drains and to estimate the cost effectiveness ratio and payback period of inst alling rainwater tanks. A simple water balance model was developed to calculate the tank size based on daily rainfall, roof area and the expected demand. The concept of 'reliability' was introduced to measure supply security. Rainfall data from 20 rainfall stations scattered around Melbourne were used to determine the variation in the rainwater tank size dependent on the above stated parameters. It was observed that to achieve the same supply reliability (90%) and to meet a specific demand (toilet and garden use), the tank size required in the western side of Melbourne is as high as 7 times as that required in the north-east side. As a result, the
156

Extraction de données et apprentissage automatique pour les sites web adaptatifs

Murgue, Thierry 12 December 2006 (has links) (PDF)
Les travaux présentés se situent dans le cadre d'extraction de connaissance à partir de données. Un contexte d'étude intéressant et d'actualité a été choisi : les sites web adaptatifs. Pour mettre en oeuvre, de manière la plus automatique possible, de tels sites adaptés aux utilisateurs, nous décidons d'apprendre des modèles d'utilisateurs ou, plus précisément, de leurs types de navigations sur un site web donné. Ces modèles sont appris par inférence grammaticale. Les données disponibles liées au contexte du Web sont particulièrement difficiles à récupérer proprement. Nous choisissons de nous focaliser sur les fichiers de logs serveur en supprimant le bruit inhérent à ces derniers. L'inférence grammaticale peut généraliser ses données d'entrée pour obtenir de bons modèles de langages. Nous travaillons sur les mesures de similarité entre langages pour l'évaluation de la qualité des modèles appris. L'introduction d'une mesure euclidienne entre modèles de langages représentés sous forme d'automates permet de pallier les problèmes des métriques existantes. Des résultats théoriques montrent que cette mesure a les propriétés d'une vraie distance. Enfin, nous présentons divers résultats d'expérimentation sur des données du web que nous pré-traitons avant d'apprendre grâce à elles des modèles utilisateurs issus de l'inférence grammaticale stochastique. Les résultats obtenus sont sensiblement meilleurs que ceux présents dans l'état de l'art, notamment sur les tâches de prédiction de nouvelle page dans une navigation utilisateur.
157

The Online Presence of Non-Profit Cluster Organizations : A Study on Automation Region's use of the Internet

Jukkola, Mathias, Lannsjö, Markus January 2009 (has links)
<p>Introduction</p><p>This paper focuses on the Internet and more specifically on how non-profit organizations can use the Internet to enhance their online presence. Our choice of research object is Automation Region (AR), a non-profit cluster organization, whose purpose is to strengthen and make the cluster of companies within industrial automation in Mälardalen visible. This cluster consists of business-to-business companies in the automation industry and AR was formed to increase the productivity, growth and profitability of these companies. The organization has two goals set up, which include: (1) increased exposure for the automation industry as well as the region wherein AR operates and (2) attracting the best competence as well as getting youths and children interested in automation. AR currently has a website (www.automationregion.com) and the overall purpose for it is to support AR's goals. However, we have a difficulty seeing how this website, as it looks and functions today, is to achieve the goals and objectives of the cluster organization and we also find it difficult to see how AR should do in order to expose its website and its brand to its target audience. The two research questions then becomes: How is Automation Region's website being used today? How can Automation Region utilize the Internet to achieve its goals?</p><p>Purpose</p><p>The purpose of this study is to gain a deeper understanding of how cluster organizations like Automation Region may use the Internet to achieve its goals, and by doing this also be able to give recommendations on how Automation Region can benefit from the use of the Internet as their primary channel for goal achievement.</p><p>Method - An Action Research based study</p><p>This paper is based on an action research approach, which contains a real world problem, a framework of ideas, and a set of methodologies. The different means of collecting data used in this paper can be categorized in four separate categories: interviews, internet analysis tool, benchmarking, and other empirical data collected.</p><p>Framework of ideas</p><p>Our framework of ideas consists of an introduction to the term clusters, which then explains the different actors on the cluster stage. Then the benefits of clusters are discussed, leading to a further discussion on how non-profit cluster organizations can utilize the possible benefits of a cluster. This leads to a presentation of different ways to improve an organizations online presence.</p><p>Analysis</p><p>The analysis is divided into two parts. The first part focuses on the results of the website analysis, where different reports from the web analysis program are analyzed. This will show how the website currently is being used and should lead to conclusions on how this usage can be improved. The second part focuses on the available Internet tools and how AR can utilize these to reach their explicit goals for the cluster organization.</p><p>Conclusions</p><p>The so called internal visitors are plentiful on AR's website site and we can conclude that the site is being used in an Intranet like way. Another conclusion is that AR should be able to increase the probability of achieving their goals by further enhancing the use of the Internet tools they currently have (website and e-mail), and also by expanding their online presence with the use of several other potential Internet tools.</p>
158

Mainly the same or mostly different? : A corpus study of the level of synonymity between the adverbs mainly, mostly, chiefly and principally

Persson, Christina January 2009 (has links)
<p>The purpose of this paper is to examine the adverbs <em>mainly</em>, <em>mostly</em>, <em>chiefly</em> and <em>principally</em> for their level of synonymity. Dictionaries commonly lists synonyms to their main entries without providing information about commonality, contexts or level of formality or even sample sentences. More often than not this is done in a circular fashion, one main entry is listed as synonym to another which in turn is listed as a synonym to the first. This is confusing to persons not knowing what word to use and when to use it. The adverbs <em>mainly</em>, <em>mostly</em>, <em>chiefly</em> and <em>principally</em> are listed as synonyms to each other in several dictionaries in this circular fashion. By using corpus research I have shown that these adverbs are not the absolute synonyms dictionaries indicate, but differ greatly in usage, context and level of formality. I have investigated real samples of how <em>mainly</em>, <em>mostly</em>, <em>chiefly</em> and <em>principally</em> are used in a British newspaper. From the results I have obtained, I have analyzed the usage of the adverbs and suggested new and improved definitions.</p>
159

Factors that Affect the Usage of Fitness and Recreation Centers by Students on College Campuses

Smith, Shaina 01 August 2011 (has links)
The purpose of this study was to determine the factors that influence why students attend or do not attend the fitness and recreation centers provided to them on campus. With the obesity epidemic growing substantially over the past several decades, it has consequentially affected a vast majority of the nation, including the college-age population. In response to this, the use of fitness and recreation centers on college campuses and universities has become a focal point for administrators and recreation center managers as a focus on student recruitment and retention. The study utilized an online questionnaire which was adapted and revised from a prior survey and corresponding research that assessed fitness and recreation center usage within the college population (Zizzi, Ayers, Watson & Keeler, 2004). The survey used for collection of data in this study assessed factors related to college students’ usage or non-usage of campus recreational facilities by college students. It was distributed to a random sample of 1,100 undergraduate students at Indiana University of Pennsylvania through their student e-mail account. Results from the data collected in this study revealed that users were more likely to be male, Caucasian, non-smokers, and have no health concerns, which is representative of prior research on fitness and recreation center participation. Factors related to usage of the recreational facilities included maintaining one’s current weight as well as weight loss. Factors that influenced occasional non-usage in the user group were lack of time and energy, too much schoolwork, and inadequate facility operational hours. A factor related to non-usage included proximity of the recreational facility in relation to the students’ living arrangements. University administrators and fitness and recreation center managers need to be conscious of the factors that influence usage for the purpose of encouraging student recruitment and retention. Higher levels of usage will increase physical activity and influence health and wellness in the college population. / Dr. Robert Kostelnik Dr. Robert Alman Dr. Joshua Castle
160

Constructions in child second language acquisition: exploring the role of first language and usage

Zdorenko, Tatiana 06 1900 (has links)
This thesis examined the factors of L1, input frequency and emergent productivity in child L2 acquisition. This thesis is the first study to look at the interplay of L1 and usage factors in children learning a L2. The focus of the thesis was an investigation of these factors in the acquisition of article and auxiliary systems of English, which have been proven to be problematic areas for both L1 and L2 learners. While accounts of L1 transfer in L2 are better developed in generative theory, the roles of input frequency and emergent productivity are better developed in constructivist theory. The thesis assessed these two approaches against the data from L2 children from various L1 backgrounds. The children’s accuracy and error patterns with articles and auxiliaries were investigated. The main findings were as follows. L1 typology facilitated the acquisition of the structure of the NP and VP, but it only extended as far as the awareness of the presence of the functional morpheme (article or auxiliary). L1 transfer effects were observed only in the first 1.5 years of acquisition, which could be due to the unstable L1 knowledge in child L2 learners. The use of articles and auxiliaries was also influenced by their input frequencies and distribution, as more frequent forms were supplied more accurately and were substituted for less frequent forms. Different forms of articles and auxiliaries emerged separately and followed different paths of development. It was argued that they were acquired piecemeal and that productivity with these forms emerged gradually. It was concluded that constructionist theories were better supported by the data, since the findings on input frequency and productivity were not compatible with the generative approach, and L1 transfer was incorporated into the constructionist approach to account for the findings. It was argued that by the onset of acquisition, child L2 learners had established constructions in their L1 that were abstract enough to be transferred to L2 and did not rely on lexically specific information. As all children learned specific morphological forms of L2 piecemeal, in doing so they demonstrated input effects that held across all L1 backgrounds.

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