It is widely acknowledged that electronic commerce presents a significant opportunity for Small- Medium-sized Enterprises (SMEs) to compete alongside larger enterprises. For SMEs in the developing world in particular, the opportunities afforded by electronic commerce for competing in a global marketplace, are also attractive. However, it has also been observed that electronic commerce poses a considerable challenge for SMEs, particularly with regard to the decisions that must be made about which of the available electronic commerce applications to adopt and to integrate into existing business operations. A number of studies have been conducted to investigate the adoption of electronic commerce by SMEs. These studies have tended to view electronic commerce adoption in terms of a dichotomous outcome: either e-commerce is adopted, or it is not. Such studies give little indication of the diffusion, or extent of usage, of individual e-commerce applications. The aim of this study was to address this gap in existing research by investigating both the level of adoption and extent of usage of e-commerce applications. In so doing, the study draws on research in the area of innovation diffusion theory. The focus of the study is on manufacturing SMES in Malaysia, and considers their use of B2B (Business-to-Business) e-commerce. The specific objectives of the study were to measure and characterise B2B e-commerce adoption and extent of usage among manufacturing SMEs in Malaysia; to identify factors associated with the adoption of B2B e-commerce in Malaysian SMEs; and to determine the impacts of that adoption. (Continues...)

tRNA genes have the fundamental role of translating the genetic code during protein synthesis. Beyond solely a passive decoding role, the tRNA pool exerts selection pressures on the codon usage of organisms and the viruses that infect them because processing codons read by rare tRNAs can be slow or even erroneous. To better understand the interactions of codons and anticodons in eukaryotic species, we first investigated whether tRNAs packaged into HIV-1 particles may relate to the poor codon usage of HIV-1 genes. By comparing the codon usage of HIV-1 genes with that of its human host, we found that tRNAs decoding poorly adapted codons are overrepresented in HIV-1 virions. Because the affinity of Gag-Pol for all tRNAs is non-specific, HIV packaging is most likely passive and reflects the tRNA pool at the time of viral particle formation. Moreover, differences that we found in the codon usage between early and late genes suggest alterations in the tRNA pool are induced late in viral infection. Next, we tested whether a reduced tRNA anticodon pattern, which was called into question by predicted tRNA datasets, is maintained across eukaryotes. tRNA prediction methods are prone to falsely identifying tRNA-derived repetitive sequences as functional tRNA genes. Thus, we proposed and tested a novel approach to identify falsely predicted tRNA genes using phylogenetics. Phylogenetic analysis removed nearly all the genes deviating from the anticodon pattern, therefore the anticodon pattern is reaffirmed across eukaryotes.

Since the Internet was introduced, it has taken over faster than anyone was ever expected it to do. It has taken over how we, humans, today live our life and is expected to accomplish our errands, such as paying our bills, ordering clothes and looking up information about travelling. With that said it is important to remember and have in thought that not everyone has the knowledge and skills to use the Internet, this because of the extreme development that the Internet brings. As mentioned above there is one group of people that has been called the “forgotten group” when it comes to the expansion of Internet, and those are the seniors. Most of the seniors today have difficulties using the Internet due to either lack of knowledge or due to the size of the text on the websites, as well as the different color combinations. Since the seniors today have special needs on how to easily use a website, they are forgotten since most websites aren’t developed for seniors. However, sometimes appearances are deceiving and that is what this study has shown us. By questionnaire and interview study, the result of this study has showed us that the majority of the informants do use Internet, but they have special needs when it comes to the design on a website, and that includes color combinations, sizes of the text as well as on how to navigate from one page to another.

Internet banking has an impact on banking performance as well as customer’s daily life. Customers are getting more used to use Internet banking services because the Internet is so popular and common available, it is more convenient and comfortable for customers to use banking services on the Internet. Hereby Internet banking also helps to improve banking service and increasing banks profitability by reducing costs. It also increases the overall value of the banks services by providing convenience, reliable, faster, cheaper services. The purpose of study is to find out which services customer prefers to execute the Internet bank and which services customers prefer to execute through branch office and based on this, what combination of services are desirable for banks customers in Visby. Finding shows that young and educated people are more frequently users of Internet banking for balance inquiry and for viewing the transaction history of his/her account. For some services customers prefer to visit branch office when opining a new account, deposit money, insurances service and loan activities. Banks encourage their customers to use online services but there is need that there are some activities that customer must go to the branch office.

This dissertation addresses research questions related to defining user's trust and risk perceptions associated with social networking usage behavior in relation to the repeated privacy and security breaches. The general research question is explored in the dissertation via the conduct of three related studies. The finding from these three investigations are presented in the results section as 3 essays that collectively examine the social networking sites usage behavior. Essay 1 proposes a conceptual model based on the review of multiple breaches. The review provides a conceptual model which is further analyzed using a quantitative survey in the second essay. Essay 2 measures the trust and risk perceptions associated with different sources of information when presented with multiple breaches. This portion of the research used a quantitative method that included surveying of college students from University of North Texas (UNT) to understand the relation between user's trust and risk perceptions. Essay 3 examines the social networking usage behavior on account of repeated privacy and security breaches. This essay uses the insights from the other two essays to identify the usage behavior and how it is affected. The proposed model was tested using a survey questionnaire method. Results show a significant relationship between the positives, negatives, technology usage, repeated breaches that impacts usage behavior. The dissertation concludes with a summary of how the three essays make a cumulative contribution to the literature as well as providing practical guidance that identifies social networking usage behavior.

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.

Amendments pasted on front end paper. / Bibliography: leaves 333-355. / viii, 355 leaves : ill., maps ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Studies the changes in the language of commercial press advertising found before 1979 (the year of the Islamic Revolution in Iran) and after 1990. Investigating their varying effects on sociolinguistic norms, and to relate the changes to external factors in the ideology and social history of Iran. Also addresses the wider issue of the relation between language and ideology in different kinds of societies, in particular islamic societies. / Thesis (Ph.D.)--University of Adelaide, Dept. of European Studies, 1998?

The usage of Web sites has been of interest to Web administrators and researchers ever since the Web started. Analysis of Web site usage data helps to understand the behaviour of its users, which is very important, as many important decisions can be made based on it. The user behaviour may be deduced by knowing all the activities each user does from the time s/he starts a session on the Web site until s/he leaves it, which is collectively called a user session. As Web server logs explicitly record the browsing behaviour of site users and are readily and economically available, this thesis explores the use of Web server logs in capturing user sessions on Web. In order to protect users’ privacy, the standard Web server logs in general do not record the user identities or similar measures to uniquely identify the users. This thesis concentrates on heuristic strategies to infer user sessions. The heuristics exploit the background knowledge of user navigational behaviour recorded in the standard Web server logs without requiring additional information through cookies, logins and session ids. They identify relationships that may exist among the log data and make use of them to assess whether requests registered by the Web server can belong to the same individual and whether these requests were performed during the same visit. Researchers have proposed several heuristics, which were adversely affected by proxy servers, caching and undefined referrers. The thesis proposes new heuristics, which effectively address all the limitations, thus extending the work in this field. It also introduces a set of measures to quantify the performance of the heuristics and uses them to investigate their efficiency based on logs from three Web sites and makes recommendations for the Web sites to devise their own heuristics. The investigation has shown satisfactory results and the new heuristics are applicable to wider range of Web sites. / Doctor of Philosophy (PhD)

Amendments pasted on front end paper. / Bibliography: leaves 333-355. / viii, 355 leaves : ill., maps ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Studies the changes in the language of commercial press advertising found before 1979 (the year of the Islamic Revolution in Iran) and after 1990. Investigating their varying effects on sociolinguistic norms, and to relate the changes to external factors in the ideology and social history of Iran. Also addresses the wider issue of the relation between language and ideology in different kinds of societies, in particular islamic societies. / Thesis (Ph.D.)--University of Adelaide, Dept. of European Studies, 1998?

The nesting demographics of sea turtles using beaches within the Barrow, Lowendal, Montebello (B-L-M) island complex on the North West Shelf of Western Australia were examined in the context of their spatial and temporal distribution and potential for exposure to industrially based artificial light sources. The distribution of overnight turtle tracks throughout the island complex confirmed high density nesting of Chelonia mydas (green turtles) on deep, sandy and high energy beaches and Natator depressus (flatback turtles) on deep, sandy and low energy beaches, while Eretmochelys imbricata (hawksbill turtle) tracks were most visible on shallow, sandy beaches adjacent to near shore coral reef habitat. The three species exhibited a summer nesting peak. Hawksbill turtles commenced nesting in September and continued through to January, green turtles commenced in November and decreased in March. Flatback turtles displayed the most constrained nesting season reported to date in Australia with 86% of the animals visits recorded in December and January only. Nesting population sizes estimated for the three species suggest that on a national scale the B-L-M complex is a moderately large green turtle and a large flatback rookery site. The hawksbill rookery is large on an international scale. While none of the green turtle nesting beaches fell within a 1.5 km radius of industrially based artificial light sources an estimated 42% of nesting flatback turtles and 12% of nesting hawksbill turtles were potentially exposed to these light sources. Testing of green turtle and hawksbill hatchling response to different wavelengths of light indicate that hatchlings from the B-L-M region respond to low wavelength much like hatchlings tested in North America (Witherington 1992a). Flatback hatchlings displayed a similar preference for low wavelength light however their responses to discrete light wavelengths between 400 nm and 700 nm suggest that this species may not discriminate well between wavelengths that lie between 450 nm and 550 nm. This response may be related to the rapid attenuation of visible light that occurs in the turbid near shore habitats favoured by this species. Field based arena studies carried out to investigate hatchling behaviour on nesting beaches with light types commonly used in industrial settings found green turtle and flatback hatchlings are significantly attracted to these lights compared to controls. Lights that emit strongly in the low wavelength range (i.e. metal halide and fluorescent) caused hatchling misorientation at lower intensities than the test light that emitted relatively poorly in this range (high pressure sodium vapour). Hawksbill hatchlings tested in situ under the influence of actual oil and gas onshore and offshore facility based lighting were disrupted from the most direct line to the ocean by these light emissions. Emergence fan mapping methods that measure hatchling orientation on nesting beaches were refined and are proposed as an alternative monitoring tool for use on beaches that are logistically difficult to access for large scale experimental orientation studies. The hatchling behaviour was clearly complicated by beach topography and moon phase. Satellite tracking of post nesting female green and hawksbill turtles from North West Shelf rookeries has identified the Western Australian location of migratory corridors and foraging grounds for these species while Scott Reef turtles migrate from their south Timor Sea rookery to Northern Territory waters. Green turtle nesting on Barrow Island and Sandy Island (Scott Reef) forage at feeding grounds 200 – 1000 km from their nesting beaches. Hawksbill turtles nesting at Varanus Island and Rosemary Islands forage at locations 50 – 450 km from their nesting beaches. While all of the nesting beaches within the B-L-M island complex are protected under the Barrow-Montebello Marine Conservation Reserves, the only foraging ground similarly protected is the Northern Territory foraging ground used by Scott Reef green turtles. None of the foraging grounds used by North West Shelf green or hawksbill turtles is currently protected by conservation reserves.