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Selinger, Michelle Sandra. "The influence of information and communications technology on pedagogy." Thesis, University of Warwick, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369470.
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Kreutz, Josefin, and Natalie Rhodin. "The influence of ICT on learners’ motivation towards learning English." Thesis, Malmö högskola, Fakulteten för lärande och samhälle (LS), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-34532.
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This degree project aims to investigate if ICT has any influence as motivation for English foreign language learners. Furthermore, this study is to investigate in what way the motivation is affected, if it is affected at all. Today, computers and other digital tools such as tablets influence the society greatly and are a part of the learners’ everyday life. The data in this study is analyzed and collected through survey questionnaires. The participants are 45 third graders from a Swedish elementary school. Many students today have a great interest in computers and tablets since it is a part of their daily life. Andersson (2003) states that many are bored since the Swedish school still hold to the old traditions. Hence, this project aims to investigate if incorporating ICT in the EFL classroom can increase students’ motivation. The conclusion of this study is that the majority of students are affected by ICT in a positive way. Also, the collected data showed that students’ motivation increased because the lessons got more fun and they felt happier when incorporating ICT in the EFL classroom.
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Meerza, Alyya H. "The application of TAM for the investigation of students' attitudes towards ICT, and factors influence students' ICT use in learning at KHEIs." Thesis, Cardiff Metropolitan University, 2014. http://hdl.handle.net/10369/7555.
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The aim of this study was to investigate the attitudes of students towards, and use of ICT in KHEIs (private- public), as well as identifying the factors that influence students‟ attitudes towards using ICT in their daily learning. Technology Acceptance Model (TAM) was used to examine the influence of the factors: type of university, gender, academic discipline, language of learning, students‟ ICT experience and ICT support, on the Perceive Ease (PEOU) of Use and Perceive Usefulness (PU), as internal components of attitude. This study employed mixed research methods to achieve its aims and objectives. The study sample consisted of 717 students from the sciences and humanities at both the Public University and the private University in Kuwait. Quantitative and qualitative data were gathered from students by distributing questionnaires and semi-structured interviews. The principal quantitative results of this study were: (1) the overall attitude of public university students towards using ICT in their learning are more positive than the attitudes of students at the private university; (2) the type of university, gender, level of ICT experience and ICT support factors have an influence on students‟ attitudes through the PEOU and PU; (3) the factor of academic discipline only influences students in terms of the PEOU and PU, and (4) learning English has a positive influence on students‟ attitudes towards ICT. At the same time, the qualitative results show that the use of ICT tools in their English version can improve students‟ English language skills. Another qualitative result shows that the social communication between students and the peer learning can positively influence their attitude towards ICT, as well as improving their ICT experience and skills. Recommendations were subsequently made to stakeholders and educators at both universities, based on the findings of the study. Further ideas were then identified for future research.
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Lama, Ndai Arnaud. "The influence of organisational culture on the happiness of employees in the ICT industry." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020609.
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Based on the increasing importance that information and communication technologies (ICT) plays in most global economies, the high demand for ICT employees and the influence of organisational culture on the success of ICT businesses, the purpose of this study was to provide ICT managers with ways to retain and keep their employees satisfied and happy in their jobs. Therefore, the primary objective of this study was to identify and empirically test the influence of various factors of organisational culture on Happiness and Job satisfaction of employees in the ICT industry in South Africa. After completing a comprehensive literature review, it appeared that limited research had been conducted on the happiness of employees in the ICT industry. Numerous factors were identified as influencing happiness; however, due to the difficulty to assess some of these factors, this study only focused on the influence of organisational culture on the happiness and in return the job satisfaction of employees. All the factors influencing organisational culture were reviewed in the literature and 13 independent variables were identified and hypothesised to influence the mediating variable Happiness and the dependent variable Job satisfaction. All the variables in this study were clearly conceptualised and operationalised. Valid and reliable items sourced from various measuring instruments used in previous studies, were used to operationalise theses variables. Furthermore, numerous items were self-generated from secondary sources. A convenience sampling method was used to identify the respondents and a structured questionnaire was completed online by respondents. The data collected from 187 usable questionnaires was subjected to various statistical analyses using the software program Statistica. A Confirmatory Factor Analysis was used to assess the validity of the dependent variable Job satisfaction and the mediating variable Happiness of this study, whereas an Exploratory Factor Analysis was used to assess the validity of the independent variables. To confirm the reliability of all the variables investigated, Cronbach’s alpha coefficients were calculated. Due to the large number of variables and the small number of respondents, conducting a factor analysis on the independent variables was not possible. This problem was solved by the use of the item parcelling method. After the item parcelling was conducted and the factor analysis conducted, only seven out of the 13 factors loaded together as expected. All the parcels measuring these factors did not load together as expected and where necessary these factors were renamed and operationalised again. The sample data was summarised using descriptive statistics. The majority of respondents reported that they were satisfied with their jobs and almost half of the respondents reported being happy with their lives. Pearson’s correlation coefficients were used to establish the degree of relationship between the factors investigated in this study. After the Multiple Regression Analysis was conducted, it was found that three independent variables influence the Happiness of employees in the ICT industry, namely, Customer focus, Strategic direction and intent and Family orientation and atmosphere. Happiness was also found to have a positive influence on the Job satisfaction of ICT employees. The influence of various selected demographic variables on the dependent, mediating and independent variables was investigated by means of an Analysis of Variance (ANOVA). The statistical significance between the differences in means scores was measured using the Bonferroni Post-hoc test. The Population group of the respondents, the Years of service and their Age group were found to significantly influence some of the independent variables and mediating variables investigated in this study. No relationship was found between any demographic variables and the dependent variable Job satisfaction. Limited studies on the influence of organisational culture on the happiness of nemployees and more particularly those in the ICT industry were found in the literature. This study has made a contribution to the field of happiness research by understanding the factors influencing the happiness and job satisfaction of employees in the ICT industry. As a result, the study presents recommendations and suggestions to assist ICT businesses to improve their organisational culture and at the same time enhance the happiness and job satisfaction of their employees.
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Li, Jingyi. "Identifying success factors that influence the adoption process of ICT tools in China's SOEs and POEs." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for industriell økonomi og teknologiledelse, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-21404.
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With the advent of globalization, increasingly companies span the globe in order to get highly competitive position and maximum profit (N.Dayasindhu, 2002). However, transferring information within these multinational organizations is a challenge, particularly when it comes to communication (Lucas and Leyland, 2006). Therefore, in order to keep a solid and rapidly economic growing and strengthen national competitiveness, Chinese enterprises have paid more attention to develop Information Communication Technology (ICT). Among all Chinese enterprises, China’s state-owned enterprises (SOEs) and private-owned enterprises (POEs) are playing the most significant roles (Xiaohui Wang et al. 2007). However, little study has been done to research the use performance of ICT tools in China’s SOEs and POEs. Consequently, this study addresses the question of what factors influence the adoption of ICT tools in China’s SOEs and POEs. Due to the scholars such as Jozée and Arnaud (2005) argue that organizational culture can impede or encourage the adoption of ICT in firms, the study will consider how a particular organizational culture can influence knowledge sharing and in turn the adoption of the ICT tools in China’s SOEs and POEs. Through literature review, we present theory on each of China’s SOEs, China’s POEs, organizational culture, ICT and general success factors related to ICT adoption process. The research was conducted through the use of online survey and two interviews respectively. We then analyzed these survey results and interviews using the theory we had already given in background chapter. From these two, we classified general success factors into three categories, namely ‘important’, ‘good performance’ and ‘bad performance’ for China’s SOEs and POEs respectively. We found that organizational culture was not the only one main factor that influences the ICT adoption process. Other factors like organizational size and companies’ background also have strong impact on prompting new ICT tools in China’s SOEs and POEs. We conclude three main problems related to ICT adoption process and then, we put forward our suggestions to these problems.
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Chung, Kon Shing Kenneth. "Understanding Attitudes towards Performance in Knowledge-intensive Work: The Influence of Social Networks and ICT Use." University of Sydney, 2008. http://hdl.handle.net/2123/4018.
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Doctor of Philosophy (PhD)Understanding factors that enhance or diminish performance levels of individuals is instrumental for achieving individual (low level) and organisational (high level) goals. In this study, the effect of social network structure, position, ties and information and communication technologies (ICT) use on performance attitudes of knowledge intensive workers in dispersed occupational communities is investigated. Based on social network theories of strength of weak ties and structural holes, and the social influence model of technology use, a theoretical framework is developed. In conjunction with qualitative interviews conducted with subject matter experts, the framework is used to further develop and refine a valid and reliable survey instrument. Secondly, network measures of degree centrality, density, structural holes (constraint and efficiency), tie strength and tie diversity are applied for exploring the association with ICT use and performance from a sample of 110 rural general practitioners. Empirical results suggest that network structure, position and ties of knowledge workers play a crucial role in individual performance and ICT use. In particular, degree centrality and task-level ICT use was found to be positively associated with performance while ego-network constraint was found to be negatively correlated with performance. In terms of ICT use, functional diversity and degree centrality were positively associated with task-level ICT use whereas ego-network efficiency was found to be negatively correlated with ICT use at the communication-structure level. Among the variables that showed significance, degree centrality best explained overall variance for performance, and functional diversity best explained overall variance for task-level ICT use, although professional accreditations remains a potent indicator also. The results from this study resonate with findings from past literature and extend traditional theory of social networks and performance within the micro level to include geographically dispersed individuals involved in knowledge intensive work. For individuals in such non-competitive settings, traditional network theories such as structural holes theory still apply. However, a key finding is that network structure is a much more potent predictor of performance although network position is important. The second key finding addresses a major gap in the literature concerning understanding social processes that influence ICT use. As the technology acceptance and the social influence models lack empirical evidence from a social networks perspective, this research shows that rather than the strength of ties which functions as a conduit of novel ideas and information, it is the functional tie diversity within individual professionals networks that increase ICT use at the task-level. Methodologically, the study contributes towards a triangulation approach that utilises both qualitative and quantitative methods for operationalising the study. The quantitative method includes a non-traditional “networks” method of data collection and analysis to serve as a fine complement to traditional research methods in behavioural studies. The outcome is a valid and reliable survey instrument that allows collection of both individual attribute and social network data. The instrument is theoretically driven, practically feasible to implement, time-efficient and easily replicable for other similar studies. At the domain level, key findings from this study contradict previous literature which suggests that professionals in occupational communities such as general practitioners decline in performance as they age. In fact, findings from this study suggest that age and experience do not affect for performance; rather, there is a negative relationship between experience and task-level ICT use, and that task-level ICT use is positively associated with performance in terms of attitudes to interpersonal care. Furthermore, degree centrality is also positively associated with professional accreditations, such as fellowship of the Royal Australian College of General Practitioners, which is conducive to performance in terms of attitudes to interpersonal and technical care. The contextual implication from the quantitative and qualitative evidence of this study is that while contemplating strategies for optimising ICT use or for improving attitudes to quality of care at the technical and interpersonal level, the importance of social structure, position and relations in the practitioner’s professional network needs to be considered carefully as part of the overall individual and organisation-level goals.
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Evans, Hannah. "The influence of personality traits and ICT use on the boundary management of home-based teleworkers." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/33179.
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This mixed methods study contains two studies that are linked together sequentially to explore the work/nonwork boundary management of home-based teleworkers through the overarching research question: Do personality traits and ICT use influence how teleworkers manage their work-nonwork boundary? Mobile ICT s such as smartphones are becoming increasingly more important for work and they can have a boundary blurring effect on the work-nonwork boundary as they may be used at anytime and anywhere. However, the issue of how personality traits influence ICT use and work-nonwork boundary management has been neglected, particularly in a teleworking context. As people manage their work-nonwork boundaries differently and some people work better at home than others, it is not known to what extent personality traits play a role in boundary management and ICT use. Study One explores the relationships between the big five personality traits of conscientiousness, extraversion and neuroticism, the facet level traits of dutifulness, gregariousness, and impulsiveness and work/nonwork boundary interruptions. It also explores the relationships between these traits and frequency of technology use for work purposes and the relationship of ICT s (smartphones, tablets and laptops) to work/nonwork boundary interruptions. Data was collected via an online survey, with recruitment from social media sites and Local Authorities totalling 391 usable responses. Conscientiousness was found to be negatively related to work-nonwork and nonwork-work interruptions, dutifulness negatively related to nonwork-work interruptions, neuroticism positively related to work-nonwork interruptions and impulsiveness positively related to nonwork-work interruptions. Personality traits were found to have small correlations to boundary interruptions which was a new finding, although it was expected that the correlations might have been larger than they were found to be. Extraversion was positively related to frequency of laptop use and extraversion and gregariousness were positively related to frequency of smartphone use, neuroticism was negatively related to frequency of smartphone use which were new findings in a work context. Frequency of ICT use was positively related to work-nonwork interruptions, with smartphones showing the highest correlation, followed by tablet and then laptop displaying a stepped effect. This finding of a stepped effect was new and suggests that the portability of smartphones makes them much easier to connect to work out of hours, than laptops and tablets. The second study included interviews from 20 participants who had completed the survey, four from each of five boundary management groups (Strong Segmentors, Strong Integrators, Moderate Managers, Work Boundary Protectors and Family Boundary Protectors). The groups were derived from scores from the survey data, in order to investigate in more depth, other factors that influenced boundary management interruptions that were not picked up in Study One and specifically the idiosyncrasies of ICT use between groups. The qualitative data was analysed via Template Analysis and the final themes in the template were Boundary Management, Crafting Work, Individual Differences, Telework and Interruptions. The theme of Boundary Management was dealt with in this study. Some key findings were that Study Two built upon Study One by finding that proactivity was a key theme and that this trait may be particularly active while individuals are teleworking due to the context. ICT s were used in a way that reflected the wide ranging boundary management preferences of the individuals using them.
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Geldenhuys, Gideon Theodorus. "Determining the influence of Information Communication Technology in the South African construction project management environment." Thesis, North-West University, 2012. http://hdl.handle.net/10394/9021.
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At the heart of Project Management are time, cost and performance by utilizing the available resources. When analysing the Global Competitiveness index for 2012-2013 it becomes clear that in South Africa labour efficiency is far below what it should be, ranked 113th out of 144. In the same report Business Sophistication is ranked 38th out of 144. It becomes clear that performance, time and cost at the heart of Project Management are hampered by the low labour efficiency.
The adoption of Information Communication Technology (ICT) in the Construction Project Management Environment will raise productivity and will increase the quality and speed of work, financial controls, communication, and access to common data. The effect will be improved communication, an increase in the speed of data transmission, cost savings and fewer occurrences in miscommunication.
The study has been done to set a framework of how ITC can be managed and implemented in the South African Construction Project Management Environment. These enablers and disablers of ICT in Construction Project Management should be determined. The current rate of ICT adoption is verified and the future trends in ICT are researched, characteristics common to quality information should also be verified.
The study determined that the future developments in ITC will be profound and if applied correctly, Project Management through the means of communication will be affected positively.
In the empirical study the characteristics of quality information, the disablers and also the enablers were investigated taking into account the current rate of ICT adoption in the South African Construction Management Environment.
The framework used in the study proposed and confirmed how ITC can be managed and implemented in the South African Construction Project Management Environment. It is set out in the following steps:
Firstly: By determining the common characteristics of quality information, namely accuracy, completeness, consistency, uniqueness, and timeliness. The implementation of ITC in the Construction Project Management Environment can be controlled.
Secondly: Disablers of ICT adoption in project management exist, namely economic factors (reduction in employment, rising cost, and limited trade), social factors (digital divide, security and lack of education), and other factors (legal, environmental and cognitive). These factors should be managed.
Thirdly: Enablers of ICT adoption in project management exist, namely relative advantage, complexity, compatibility, trial ability and observe ability. These enablers must be focused on and exploited where possible.
Fourthly: Determine the current rate of ICT adoption in Construction Project Management. This was done and it is clear that the digital divide has been crossed by South African Project Managers and that they will embrace future developments in ICT in general.
Finally: Future trends in ICT for the next five to ten years pertaining to Project Management should be analysed and new trends with possible advantages for Project Management must be investigated on a constant basis to see what will be advantageous.Thesis (MBA)--North-West University, Potchefstroom Campus, 2013.
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Chini, Ioanna. "Governmentality and the information society : ICT policy practices in Greece under the influence of the European Union." Thesis, London School of Economics and Political Science (University of London), 2010. http://etheses.lse.ac.uk/847/.
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The perceived socio-economic significance of Information and Communication Technology (ICT) has dramatically expanded the domains in which this cluster of technologies is being discussed and acted upon. Action to promote the 'information society' has made its way into governmental policy. National technology policy and action cannot however be adequately understood solely as the calculation of needs according to the development aspirations of the country concerned. Instead it needs to be placed in the intersection of simultaneous efforts by national and international organisations to shape technological developments. This research examines the nature of efforts made to promote ICT innovation through national policies and programmes in the midst of international and regional influences. The thesis involves the historical analysis of the policies for ICT diffusion in Greece within the context of the European efforts to promote the information society. It examines how the Greek state undertook to implement a large-scale ICT programme, in the backdrop of hesitant attempts at modernisation and technological innovation. The research traces the emergence of the ICT programme and the European visions which framed it, and explores the discourses and practices through which it came to materialise. The research is theoretically infomred by Foucault's ideas on governmentality, focusing on the government and self-government of conduct. The study explores the discourses sustained through the European and Greek policies on the information society. Practices of funding, monitoring and reporting are also scrutinised to understand the forms of discipline and contestation they gave rise to. Through this theoretical analysis, the research engages in a context-sensitive examination of the taken-for-granted relationship between policies and their implementation. The main contribution of the thesis lies in illuminating the often neglected role of international and regional organisations in shaping technological agendas, and the material practices which allow them to operate effectively across distances.
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Davids, Zane. "The educators' perspective of the factors that influence the success of ICT school initiatives within the Western Cape." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/5639.
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Garbutt, Malcolm. "An investigation into the influence of information behaviour and use of ICT on the quality of life with people with disabilities." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13177.
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Includes bibliographical references.People with disabilities are frequently denied access to information and information technologies due to their impairments. Whereas physical impairment is a predominant, economic barriers are also a constraint for people with disabilities. The disability-poverty link hinders knowledge building resulting in a lack of information for everyday life leading to further economic poverty. Nevertheless, a paradox is observed whereby people with disabilities report a higher quality of life (QOL) than anticipated. This research explores the disability paradox by taking a hypothetico-deductive approach to investigate the influence of information behaviour on the quality of life of people with disabilities and the role that information and communication technology (ICT) contributes. Although the majority of participants had regular access to ICT no influence on quality of life was observed for technology. Likewise, information behaviour was not observed to influence quality of life. However, the type of information needed was associated with quality of life while associations were revealed between information behaviour, ICT, and type of information needed. Six primary type of information needs - Social Support; Independence; Finances and Employment; Attitude; Mobility; and Technology - were observed to exhibit a complex relationship with disability both influencing and being influenced by quality of life. An area of concern was identified in the observation of low demand for ethical information which is arguably one of the most needed areas both in ICT and for people with disabilities today. These findings are supported by literature which has failed to conclusively prove direct associations between ICT and QOL. Nonetheless, ICT access has been associated with information behaviour although verbal and media information sources are ranked highly. In this study, verbal communication was observed to be preferred for information sharing supporting findings that offline communication is a greater predictor of quality of life than online communication. Whilst respondents sought more information on technology they encounter barriers including economic limitations, inaccessibility of Internet content and technology, lack of training, fear of technology, and lack of knowledge of technology offerings. Furthermore, a negative perception of dependency on the technology was identified. This study supports prior observations that people with disabilities manifest higher quality of life than expected. While technology is not directly linked to improved quality of life it was shown to support factors that improve quality of life. For people with disabilities this includes assistive technologies and ICT for information gathering and sharing, however the very disability that the technology seeks to overcome may also be a barrier to its use.
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Panova, Tayana. "How ICTs can influence psychological wellbeing: an analysis of uses and addiction potential." Doctoral thesis, Universitat Ramon Llull, 2020. http://hdl.handle.net/10803/668745.
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Les Tecnologies de la Informació i les Comunicacions (TIC) com Internet i els telèfons
intel·ligents van entrar a la nostra vida fa només uns 20 anys, però, en aquest curt període de temps, han reconvertit profundament el funcionament de la societat i dels individus de tot el món. Això ha portat a preguntes i investigacions sobre com l’ús freqüent de la tecnologia influeix en la nostra salut social i psicològica. Aquest treball de tesi vol aportar informació sobre aquest tema a través de quatre estudis sobre tres de les TIC més populars - telèfons intel·ligents, xarxes socials en línia i Internet- i mitjançant la lent de tres preguntes d’investigació - 1) La addicció és el marc adequat per utilitzar a l’hora de investigar. ús problemàtic de les TIC?; 2) Quins són els efectes
de la cultura en un ús problemàtic de les TIC?; i 3. Quins usos concrets s’associen a problemes relacionats amb les TIC? Les conclusions a què arribem són les següents. En aquest moment, l’addicció no és un terme adequat per utilitzar-se en la investigació sobre problemes relacionats amb les TIC. En segon lloc, certs usos específics s’associen a conseqüències problemàtiques de l’ús de les TIC, mentre que altres usos no ho són, per tant no és prudent patologitzar totes les TIC. En tercer lloc, els usos associats a un ús problemàtic són diferents segons la cultura de l’usuari. En una cultura, un ús particular de les TIC pot ser problemàtic, mentre que en un altre país pot ser adaptatiu. En quart lloc, alguns aspectes de l’ús de les TIC semblen ser més o menys constants en cultures com ara els usos més populars dels telèfons intel·ligents i els factors subjacents de l’ús problemàtic de les TIC.Las Tecnologías de Información y Comunicación (TIC) como Internet y los teléfonos inteligentes entraron en nuestras vidas hace solo 20 años, pero en este corto periodo de tiempo han rediseñado profundamente la forma en que funcionan la sociedad y las personas en todo el mundo. Esto ha llevado a preguntas y investigaciones sobre cómo el uso frecuente de las tecnologías influye en nuestra salud social y psicológica. El objetivo de este trabajo de tesis es aportar información sobre este tema a través de cuatro estudios sobre tres de las TIC más populares: teléfonos inteligentes, redes sociales en línea y Internet y a través de la lente de tres preguntas de investigación: 1) ¿Es la adicción el marco correcto para usar en las investigaciones del uso problemático de las TIC?; 2) ¿Cuáles son los efectos de la cultura en el uso problemático de las TIC?; y 3) ¿Qué usos específicos están asociados con los problemas relacionados con las TIC? Las conclusiones a las que llegamos son las siguientes. En este momento, la adicción no es un término adecuado para usar en la investigación sobre problemas relacionados con las TIC. En segundo lugar, ciertos usos específicos están asociados con consecuencias problemáticas del uso de las TIC, mientras que otros usos no lo son, por lo tanto, no es prudente patologizar la totalidad de las TIC. En tercer lugar, los usos asociados con el uso problemático de las TIC son diferentes según la cultura del usuario. En una cultura, un uso particular de las TIC puede ser problemático, mientras que en otro país puede ser adaptativo. En cuarto lugar, ciertos aspectos del uso de las TIC parecen ser más o menos constantes en todas las culturas, como los usos más populares de los smartphones y los factores subyacentes del uso problemático de las TIC.
Information and Communication Technologies (ICTs) such as the Internet and smartphones entered our lives only about 20 years ago, yet in that short time they have deeply rewired the way society and individuals all around the world function. This has led to questions and investigations regarding how the frequent use of technology influences our societal and psychological health. This thesis work aims to contribute some insight on this subject through four research papers about three of the most popular ICTs - smartphones, social media and the Internet and through the lens of three research questions - 1) Is addiction the correct framework to use when researching problematic ICT use?; 2) What are the effects of culture on problematic ICT use?; and 3) What specific uses are associated with ICT-related problems? The conclusions we arrive at are the following. At this time, addiction is not a suitable term to use in the research on ICT related problems. Secondly, certain specific uses are associated with problematic consequences of ICT use whereas other uses are not, therefore it is unwise to pathologize the entire ICT. Thirdly, the uses that are associated with problematic ICT use are different depending on the culture of the user. In one culture a particular ICT use can be problematic, whereas in another country it may be adaptive. Fourthly, certain aspects of ICT use appear to be more or less constant across cultures such as the most popular smartphone uses and the underlying factors of problematic ICT use.
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Hassa, Ishmael. "An investigation into the ICT Vendor–Value Added Reseller (VAR) partnerships and the perceived factors that influence their relationship satisfaction in South Africa." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/18598.
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Includes bibliographical references.The purpose of the study is to explore the perceived factors that contribute to relationship satisfaction between Information and Communication Technologies (ICT) downstream supply chain management (SCM) Vendors and Value-added Resellers (VARs) in South Africa. In addition, the study investigates the motivation for Vendor-VAR relationships as this exposes the antecedent and consequences of the perceived factors. By exploring and exposing the relationship quality in an under-researched industry and country context, the study shall illuminate the challenges faced in these critical dyads. ICT is integral to South Africa's social, economic and technological progress. The successful diffusion and adoption of ICT in South Africa hinges on Vendor-VAR relationships.The dissertation pursued qualitative research methods in which relevant experts from both ICT Vendors and VARs were interviewed. Semi-structured interviews were used to collect data. This allowed deep and underlying thoughts and feelings to be exposed without restrictions. The study draws on existing knowledge in SCM, interpersonal and business relationships. Importantly, the study utilises existing theory, which is the Interaction Approach (IA). IA is suitable for the research as it concentrates on business interactions and the outcomes thereof as they are influenced by individuals, organisations, networks and the environment. The findings of the study indicate that the four-relationship satisfaction factors contained in the "atmosphere" variable within the theory is not comprehensive enough when interpreting business relationships in the ICT industry in South Africa. There are some critical factors, which emerged, such as profitability, communication and value, that are antecedent and consequent factors to other perceived relationship satisfaction factors. For these reasons, the IA model is extended to reflect interesting and important factors that emerged from the study. In addition, the findings revealed that the "environment" variable within IA does not sufficiently represent the ICT industry in South Africa. The South African context exposes unique "environment" issues such as Broad-Based Black Economic Empowerment (B-BBEE) that has a bearing on relationship satisfaction in the ICT industry. An unexpected finding is around the deep influence ICT customers have on SCM .This inquiry minimises the gap in knowledge and is intended to encourage discussions between stakeholders and be a catalyst for further research.
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Widsing, Veronica, and Åsa Grundell. "Pedagogers användning av verktyget pekplattan i förskolan : Pekplattan som stöd för barns språkutveckling." Thesis, Högskolan i Skövde, Institutionen för kommunikation och information, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-8917.
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Tekniken är en stor del av alla barns vardag i samhället, detta ger oss därför ett ansvar att ge barnen möjlighet att utforska och experimentera med IT-verktyget pekplattan för att kunna stimulera barns språkutveckling i deras tidiga år. I läroplanen för förskolan (Lpfö 98/2010) står det skrivet att förskolan ska främja barns utveckling inom enkel teknik i vardagen (a.a). IT-utvecklingen är i ständig rörelse framåt, hela tiden upptäcks nya fantastiska användningsområden kring de IT-verktyg vi använder oss av idag. Tekniken är här för att stanna! Hur kan vi delge vår kunskap till barnen inom användningsområdet pekplattan när det gäller barns språkutveckling? Syftet med studien är att undersöka hur pekplattan används i förskolans verksamhet för att främja barns språkutveckling. I studien belyser författarna hur pedagogerna använder sig av pekplattan som ett verktyg när det gäller att främja barns språkliga utveckling. Denna studie är kvalitativ då författarna har gjort egna analyser och tolkningar utifrån observationer, samt att författarna belyser pedagogernas syn och tankar hur de använder pekplattan genom intervjuer. Elva pedagoger på tre olika avdelningar har intervjuats och sex observationer har genomförts. Resultatet visar på hur pedagoger använder sig av pekplattan för att främja barns språkliga utveckling. De frågeställningar som är aktuella i studien besvaras genom respondenternas intervjusvar samt de genomförda observationerna. Diskussionen innefattar författarnas egna tankar om pedagogernas förhållningssätt till IT-verktyget pekplattan. Den framtagna teorin i studien diskuteras och knyter an till studiens syfte samt frågeställningar.Technology is a big part of every child living in the community, this gives us a responsibility to give children the opportunity to explore and experiment with IT tool touchpad in order to stimulate children's language development in their early years. In the kindergarten curriculum (Lpfö 98 /2010) , it is written that preschool should promote children's development in the simple technology of everyday life (a.a.). IT development is constantly moving forward, constantly discovered new amazing applications on the computer tools we use today. The technology is here to stay! How can we communicate our knowledge to the children within the area of use the touchpad when it comes to children's language development? The purpose of this study is to investigate how the touchpad used in the preschool activities to promote children's language development. The study highlights the authors how educators use the touchpad as a tool for promoting language development of children from a didactic perspective. This study is qualitative as the authors have done their own analyzes and interpretations based on observations, and that the authors highlight educators' views and ideas how to use the touchpad interviews. Eleven teachers at three different departments were interviewed and six observations have been carried out. The result shows how teachers use the touchpad to promote children's language development. The issues that are important in the study answered by respondents' interview responses and the observations don. The discussion includes the authors ' thoughts on teachers' attitudes to IT tool touchpad. The developed theory in the study are discussed and linked to the purpose of the study and issues.
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Rathore, Animesh S. "The influence of gender and ethnicity on the use of ICT in higher education a case of arts and social science students in Universiti Malaya /." Ohio : Ohio University, 2008. http://www.ohiolink.edu/etd/view.cgi?ohiou1227064208.
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Rathore, Animesh S. "The Influence of Gender and Ethnicity on the Use of ICT in Higher Education: A Case of Arts and Social Sciences Students in Universiti Malaya." Ohio University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1227064208.
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Al-Majeeni, Amal Obaid. "The integration of information and communication technology into basic education schools in Oman : a study of teachers' use of ICT and the influence of related factors." Thesis, University of Hull, 2004. http://hydra.hull.ac.uk/resources/hull:5608.
Full textAbstract:
This study investigates teachers' use of Information and Communication technology (ICT) in Basic Education schools in Oman. The introduction of ICT was a reform in the education system embarked upon in 1998 which aimed to transfer the schools from the traditional style to more progressive through the integration of technology into teaching and learning. The main focus of the present study is on exploring the influence of different factors on the use of ICT, such as the availability of different types of equipment, teacher training, learning resource centres, administration and attitudes toward the importance of the educational technology to the teaching-learning process. The study is based on both quantitative and qualitative data gathered using a variety of methods: questionnaires, interviews and classroom observations. The questionnaire sample consisted of 743 teachers. Interviews and observations were conducted with 23 teachers in all regions in Oman. Results indicate that teachers' use of ICT was low and most of them (around two thirds of the sample) still rely on traditional media tools; ICT use by Basic Education teachers was still confined primarily to laboratory settings; and teachers' technology experiences were not directly integrated into daily classroom instruction or lesson planning. Access to resources, time, training, home use and support were identified as factors that influence the integration of technology into daily instruction. Among the findings of the study are continuing weaknesses in ICT integration and the need for improved and more flexible in-service training. In addition, the study argues that the main concern of the Basic Education teachers was the lack of support, which could be improved by offering technical, administrative and suitable guides and knowledge to help them the achieve the higher levels of ICT integration.
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Charalambous, Georgios. "TEACHERS IN THE ERA OF ACCELERATION : How the acceleration of ICT developments influences the ICT use by teachers at school." Thesis, Linköpings universitet, Pedagogik och vuxnas lärande, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-130804.
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In the effort to examine the factors that impact the use of ICT by teachers, research has up until now neglected the acceleration of ICT developments as a factor that affects the successful integration of ICT in education. The technological acceleration in general has triggered significant changes at the social level, such as the acceleration of social change and the acceleration of the pace of life. This is why the study of the acceleration of ICT provides for a good theoretical framework to study the teachers and their interaction with ICT in a broader context, one that engages the environment in which a teacher functions as a teacher and a learner. This study explores the role of the acceleration of ICT as a factor that affects the use of ICT by teachers in Cyprus secondary schools. The Social Acceleration (SA) theory is used to interpret the whole situation. After examining how teachers perceive the ICT acceleration, how it affects them at school and personally as lifelong learners the results showed that ICT acceleration is not a significant factor in the use of ICT by teachers at schools in Cyprus but it still affects teachers indirectly as lifelong learners. I argue that the teachers have established a superficial relation to technology that has to do with a short-sighted vision of ICT integration which also the Ministry of Education shares. I propose that serious decisions should be made at a policy level in order to make a conscious adoption of technology, not necessarily running behind the accelerated ICT developments but exploiting the potential of ICT according to the needs of the educational system.
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Van, Niekerk Molly Patricia. "Principals' influences on teacher professional development for the integration of information and communication technologies in schools." Thesis, Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-05022009-175019.
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Petrovčíková, Lucia. "Influenceri na sociálnych sieťach a ich využitie v marketingu." Master's thesis, Vysoká škola ekonomická v Praze, 2017. http://www.nusl.cz/ntk/nusl-360548.
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This diploma thesis called "Influencers in Social media and their Use in Marketing" deals with the new current trend in which, instead of well-known celebrities, star just ordinary people. Despite of this, they managed to conquer the masses through social networks thanks to their unique personality and authenticity. The first chapter focuses on online marketing and explains the basic concept of it, its tools and communication mix, along with data on the structure of the Czech Internet population. The second chapter is devoted to the social media and it also explains Word-of-mouth marketing, as it is one of the ways in which awareness of influences is spread. The third chapter aims to familiarize the reader with the YouTube portal and it also includes statistics about the Czech YouTube. The last chaptermedia. The aim of this master thesis is to give a comprehensive overview of the phenomenon of influencers, with particular regard to YouTubers who represent the influencers of the present. The practical part of this thesis is the to identify target group of influencers (YouTubers) and the subsequent characteristic of this target group.
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Johnston, Michelle E. "Influence of ice microstructure on the microwave scattering properties of sea ice." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0013/NQ36280.pdf.
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Ma, Suet-chun Phyeon, and 馬雪珍. "How a principal's role influences ICT implementation in a Hong Kong primary school." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29717851.
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Shih, Meilun. "Influences of information and communication technology (ICT) on occupational socialization of novice teachers." [Bloomington, Ind.] : Indiana University, 2005. http://wwwlib.umi.com/dissertations/fullcit/3177637.
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Thesis (Ph.D.)--Indiana University, School of Education, 2005.Title from dissertation home page (viewed Dec. 8, 2008). Source: Dissertation Abstracts International, Volume: 66-05, Section: A, page: 1622. Chair: Ellen Brantlinger.
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Stevens, Laura A. "Influence of meltwater on Greenland Ice Sheet dynamics." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113800.
Full textAbstract:
Thesis: Ph. D., Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2017.Cataloged from PDF version of thesis.
Includes bibliographical references.
Seasonal fluxes of meltwater control ice-flow processes across the Greenland Ice Sheet ablation zone and subglacial discharge at marine-terminating outlet glaciers. With the increase in annual ice sheet meltwater production observed over recent decades and predicted into future decades, understanding mechanisms driving the hourly to decadal impact of meltwater on ice flow is critical for predicting Greenland Ice Sheet dynamic mass loss. This thesis investigates a wide range of meltwater-driven processes using empirical and theoretical methods for a region of the western margin of the Greenland Ice Sheet. I begin with an examination of the seasonal and annual ice flow record for the region using in situ observations of ice flow from a network of Global Positioning System (GPS) stations. Annual velocities decrease over the seven-year time-series at a rate consistent with the negative trend in annual velocities observed in neighboring regions. Using observations from the same GPS network, I next determine the trigger mechanism for rapid drainage of a supraglacial lake. In three consecutive years, I find precursory basal slip and uplift in the lake basin generates tensile stresses that promote hydrofracture beneath the lake. As these precursors are likely associated with the introduction of meltwater to the bed through neighboring moulin systems, our results imply that lakes may be less able to drain in the less crevassed, interior regions of the ice sheet. Expanding spatial scales to the full ablation zone, I then use a numerical model of subglacial hydrology to test whether model-derived effective pressures exhibit the theorized inverse relationship with melt-season ice sheet surface velocities. Finally, I pair near-ice fjord hydrographic observations with modeled and observed subglacial discharge for the Saqqardliup sermia-Sarqardleq Fjord system. I find evidence of two types of glacially modified waters whose distinct properties and locations in the fjord align with subglacial discharge from two prominent subcatchments beneath Saqqardliup sermia. Continued observational and theoretical work reaching across discipline boundaries is required to further narrow our gap in understanding the forcing mechanisms and magnitude of Greenland Ice Sheet dynamic mass loss.
by Laura A. Stevens.
Ph. D.
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Criscione, Antonio [Verfasser]. "Influence of Ice Formation on Drop Dynamics / Antonio Criscione." Aachen : Shaker, 2014. http://d-nb.info/1066196370/34.
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Draghicescu, Anca. "The influence of bed topography on ice sheet flow." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365045.
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Vaughan, David Glyn. "Dynamic and climatic influences on Antarctic ice shelves." Thesis, Open University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309141.
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Baker, Narelle Paula Marie. "The influence of subglacial hydrology on the flow of West Antarctic ice streams." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/242375.
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Subglacial hydrology is known to influence the flow of ice. However, difficulty in accessing the base of large ice sheets has made determining the interaction between ice streams, basal sediment and water difficult to discern. The aim of this thesis is to determine the influence of subglacial hydrology on the flow of the West Antarctic ice streams. This is achieved through development of a numerical flowline model, the Hydrology, Ice and Till (HIT) model. Ice thermodynamics are coupled to a till layer of Coulomb plastic rheology. The porosity of the till changes with basal melt and freeze and can be augmented by water transported through a subglacial conduit system. Water availability strongly affects ice flow, as till porosity influences the till failure strength and thereby the basal resistance of the ice. The model was developed in four stages and a number of sensitivity tests were performed. It was then applied to Kamb Ice Stream (Ice Stream C) and Whillians Ice Stream (Ice Stream B), West Antarctica. Results confirm that ice streams are capable of oscillating between fast and slow velocity states. Cycles are generated at the grounding line of an ice stream and the speed of the transition from slow to fast flow is governed by water availability. The period of oscillation of the cycles for the West Antarctic ice streams was found to be several hundred years, which is in line with observations of stagnation and reactivation of these ice streams. This shows that subglacial hydrology has a role in modulating the flow variability of ice streams and that rather large changes in the flow of the West Antarctic ice streams are likely to occur this century.
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Oltmanns, Marilena. "Strong wind events across Greenland's coast and their influence on the ice sheet, sea ice and ocean." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/98825.
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Thesis: Ph. D., Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2012.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 129-143).
In winter, Greenland's coastline adjacent to the subpolar North Atlantic and Nordic Seas is characterized by a large land-sea temperature contrast. Therefore, winds across the coast advect air across a horizontal temperature gradient and can result in significant surface heat fluxes both over the ice sheet (during onshore winds) and over the ocean (during offshore winds). Despite their importance, these winds have not been investigated in detail, and this thesis includes the first comprehensive study of their characteristics, dynamics and impacts. Using an atmospheric reanalysis, observations from local weather stations, and remote sensing data, it is suggested that high-speed wind events across the coast are triggered by the superposition of an upper level potential vorticity anomaly on a stationary topographic Rossby wave over Greenland, and that they intensify through baroclinic instability. Onshore winds across Greenland's coast can result in increased melting, and offshore winds drive large heat losses over major ocean convection sites. Strong offshore winds across the southeast coast are unique over Greenland, because the flow is funneled from the vast ice sheet inland into the narrow valley of Ammassalik at the coast, where it can reach hurricane intensity. In this region, the cold air, which formed over the northern ice sheet, is suddenly released during intense downslope wind events and spills over the Irminger Sea where the cold and strong winds can drive heat fluxes of up to 1000 W m-2, with potential implications for deep water formation. Moreover, the winds advect sea ice away from the coast and out of a major glacial fjord. Simulations of these wind events in Ammassalik with the atmospheric Weather Research and Forecast Model show that mountain wave dynamics contribute to the acceleration of the downslope flow. In order to capture these dynamics, a high model resolution with a detailed topography is needed. The effects of using a different resolution locally in the valley extend far downstream over the Irminger Sea, which has implications for the evolution and distribution of the heat fluxes.
by Marilena Oltmanns.
Ph. D.
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Topp, Amanda. "Teaching practices, influences and outcomes in the adult ICT user classroom : more than an input/output approach?" Thesis, University of Sunderland, 2010. http://sure.sunderland.ac.uk/4585/.
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ICT user skill is a relatively new subject area and has a limited pedagogical history. To date, most of the discussion has been about ICT within schools, particularly integration of ICT into other curriculum areas, with less emphasis on how to teach user skills, especially to adults. This research explores differing teaching practices within the adult ICT user skills environment from a teacher professional knowledge perspective. By examining the ways that teachers develop, maintain and enact pedagogical knowledge and by determining influencing factors, this investigation contributes to the subject and pedagogical understandings vital to an emergent subject area. A naturalistic, qualitative, multi-methodology approach was used, involving interviews, classroom observations, document examination, and learner questionnaires. This enabled flexible examination and triangulation of the varying influences on practice and the development of emergent models. The research identified seven different teaching approaches but concludes that ‘transmissive’ teaching styles focusing on procedural skills dominate. Activity is almost universally perceived by stakeholders as practical, hands-on and individual. The diversity and nature of the teachers’ professional backgrounds, ambiguous subject goals, perceptions of adults as learners, and strong institutional and examination influences all contribute to this narrow perspective. This thesis questions whether such one-dimensional subject and pedagogical outlooks could impact adversely on outcome, leading to skills deficiencies which may limit economic and/or personal ICT potential. Drawing on problem solving examples from the research the thesis proposes a more holistic approach to create a robust theoretical base for both subject and pedagogy.
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Dennis, Paul W. "The influence of game location on ice hockey coaches and referees." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0024/NQ31144.pdf.
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Hillergren, Fredrik. "Kinetic and kinematic factors influence on ice-hockey skating sprint performance." Thesis, Mittuniversitetet, Avdelningen för hälsovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-35704.
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Skridskoåkning är en viktig färdighet för ishockeyspelare. Syftet med denna studie var att undersöka olika variabler inom kinetik och kinematik och dess association med hastighet på skridskoåkning över en kort distans. Tolv manliga elit ishockeyspelare deltog i studien. Pedar mobile system inläggssulor placerades i båda skridskorna. Deltagarna genomförde tre maximala försök där det åkte så snabbt de förmådde mellan den förlängda mållinjen och den närmsta blålinjen. Den bästa tiden av de tre försöken användes vid analysen. Kraftdata insamlades för att räkna ut medelkraft, högsta kraft, relativa medelkraft, relativa högsta kraft, impuls, kontakttid, rörelsefrekvens för skridskoskären och asymmetri mellan extremiteterna, därefter korrelerades data mot åktiden. Frekvensen på skären visade en signifikant korrelation med åktiden (r= -0,586; p<0,05). Övriga variabler visade inget samband med åktiden. Enligt denna studie så är rörelsefrekvens en viktig faktor för att ishockeyspelare ska kunna generera skridskohastighet över en kort sträcka.Godkännande datum: 2019-09-03
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Ghareh, Aghaji Zare Soheil. "Influence of Dynamic Ice Cover on River Hydraulics and Sediment Transport." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35936.
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Ice regime plays a significant role in River hydraulics and morphology in Northern hemisphere countries such as Canada. The formation, propagation and recession of ice cover introduce a dynamic boundary layer to the top of the stream. Ice cover affects the water velocity magnitude and distribution, water level and consequently conveyance capacity.
A stable ice cover also tends to reduce bed shear and associated sediment transport, but bank scour and ice jamming events can increase sediment entrainment. These effects are even more intense during the ice cover break-up period when extreme conditions such as ice-jamming and release and mechanical ice cover break-up can locally accelerate the flow, and ice can mechanically scour the river bed and banks.
The presence of ice has some important implications for hydro-electrical power generation operations too. The ice cover changes the channel conveyance capacity (and therefore increases the flood risk), may increase sediment transport and causes scouring, and is likely to block water intakes and turbines. The rate of water release should, therefore, be adjusted in the presence of the ice cover to avoid unwanted consequences on the dam structure and equipments as well as on the downstream channel and the environment.
Even though the influence of ice cover on rivers is widely recognized, large gaps still exist in our understanding of ice cover processes in rivers. Two main reasons for such a shortage are the difficulty and danger involved in collecting hydraulic and sediment transport data under ice cover, especially during the unstable periods of freeze-up and break-up. In the absence of sufficient data, the applicability of available formulae and theories on hydraulic processes in ice-covered rivers cannot be extensively tested and improved.
The purpose of this research mainly is
a) to perform a continuous, in-situ monitoring of water velocity profiles, sediment loads and ice-cover condition during several years through winter field campaigns at a section of the Lower Nelson River, Manitoba, Canada.The Lower Nelson River is a
regulated river (Manitoba Hydro). It receives augmented flow from the Churchill
River Diversion, and is subject to operation of many hydro-electricity facilities, one
of which is currently under construction, while others are planned to be constructed
in the future. Due to the geographical location of the study reach, it is covered by
ice and experiences severe ice condition for several months during the year.
b) Analysis of the collected data in order to study the impact of ice cover on the hydraulic properties and sediment conveyance capacity at the study reach and
c) using the insight gained from the field data analysis to improve a river ice simulation model to apply in the study of Lower Nelson River ice regime. The selection of the Lower Nelson river is motivated by intention of Manitoba Hydro (MH) ,as the industrial partner in this research, to study the winter flow regime at the Lower Nelson River. Manitoba Hydro operates several dams on the Lower Nelson River and is considering more hydropower developments in the future.
This study is composed of six steps as are described in the following main steps. Step 1: Selection of potential study sites and data collection techniques:
The particular study site for this research is located immediately upstream of Jackfish Island, between Limestone generating station and Gillam Island in Lower Nelson River, Manitoba, Canada. River width at the study site location is about 1km. Water depth at the deployment site varies between 10-12 meters depending on both the time of year and the time of day due to hydropeaking fluctuations. Given the low accessibility to the field during winter time and considering the type of the required data, acoustic techniques were selected as the main approach for the field measurements. Two types of acoustic instruments, Acoustic Doppler Current Profiler (ADCP) and Shallow Water Ice Profiling Sonar (SWIPS) are selected for field investigations in this study. Both of them were planned to be deployed in the river for an extended period of time in order to record necessary data during the ice cover and open water periods.
Step 2: Data acquisition. After the site selection and defining the appropriate techniques, data acquisition has been started through a series of annual field measurement campaigns starting from winter 2012. Measured data mainly consist of water velocity and sediment suspension during various ice cover stages, including river ice break-up. The velocity profiles are analyzed to determine dynamic changes in boundary shear stress and hydraulic resistance and stresses in the flow during the both open water and ice cover periods.
Step 3: Data analysis and development/testing of roughness and sediment transport formulas. Several aspects of river-ice interactions are covered in the recorded data including ice cover condition and cover thickness variation, river hydraulic characteristics such as depth and velocity and finally information about the concentration of suspended particles. These data are analyzed to define the behavior of the ice cover and river during different ice stages. Ice effect on river conveyance capacity is also evaluated . The accuracy of common assumptions in composite roughness calculations in rivers is estimated and a new approach is developed and validated using the field observations and measurements. Ice cover influence on suspended sediment concentration is also studied as the other part of this research. Considering the type of the river sediment load (mostly bed load) available methods for sediment transport simulation are studied and applied for estimation of the sediment transport under ice cover condition. According to the results, the most suitable methods were planned to be a part of the river ice numerical simulation model, developed in this study. Turbulent characteristics in ice covered flows are also studied through two years of data recordings. Acoustic Doppler Current Profiler employed in this study is programmed for appropriate recording of the water velocity for this purpose. Results are analyzed and turbulent structures in the river are studied in this research as well.
Step 4: Testing of Hatch-MH’s river ice simulation model. A numerical model has been selected in order to simulate the river ice process at the study site (LNR).
ICESIM, a steady state, one-dimensional river ice process model originally developed in 1973 by Acres International Limited (now Hatch), is selected for this study.ICESIM is originally developed in FORTRAN and is capable of predicting the progression and stabilization of river ice cover.
Step 5: Improvement of Hatch-MH’s river ice simulation model: ICESIM model
is converted to Matlab as the first step of the model improvements. A Graphical User
Interface (GUI) is designed for the program which facilitates the assessment of model performance during the simulation leads to a more user-friendly model to operate. The new model, ICESIMAT is calibrated and evaluated based on the conducted field studies. Simulation capabilities of ICESIMAT are improved in the form of extended or additional subroutines to enhance its capabilities in the simulation of river ice processes and sediment transport. The current version of ICESIMAT is a steady state model, capable of simulating river ice , river hydrodynamic characteristics and sediment transport along the study reach. Though the model is restricted in the terms of the dimensions of the simulation (only one dimensional) its lower computational cost, permits a longer study reach to be simulated (in the scale of hundred kilometers instead of couple hundred meters in three dimensional simulation). ICESIM model is unable to simulate the break-up period which reduces the model capability in the simulation of the complete cycle of river ice. New subroutines are designed and added to extend the model capability to include simulation of ice processes during the ice cover break-up and finally to calculate the sediment transport under the ice cover.
Step 6: As the final step, the new subroutines are adjusted and linked to the main improved code, providing a new framework for dynamic ice cover simulation, more
prepared for further future improvements both in terms of conceptual and programming aspects of the river ice modeling . The new Matlab basis of the code facilitates upgrading the model to include more complicated processes like river ice jam simulations.
As the general result of this thesis, we have a better understanding of hydraulics and
sediment transport processes in ice covered rivers ( direct and indirect measurements of river hydraulics characteristics), improved formulas for these processes (including more involving parameters) and a better version of the river ice simulation model (capable of simulating the complete river ice processes) for the contributors to this study in the industry.
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Wang, Shu-Tai. "The Freezing Behavior of Water as Influenced by Ice Cream Stabilizers /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487935125881971.
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Andrew, Giles. "The influence of the ice phase on the simulated chemistry of a rainband /." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63867.
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Smale, Daniel Alexander. "The influence of ice disturbance on nearshore benthic communities at Adelaide Island, Antarctica." Thesis, Open University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.446279.
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Ice disturbance is frequently cited as having a major role in structuring benthic communities in shallow polar waters, and yet comprehensive field studies on the direct effects of ice disturbance are rare. This thesis aimed to describe the role of ice disturbance in determining benthic community structure at sites around Rothera Point, Adelaide Island (67° 34.5' S, 68° 07.0' W). The work comprised of two main components; a range of observational studies to describe the general effects of ice disturbance, and an experimental quantification of the disturbance pressure, which was then used to make novel links between disturbance and community structure. A photographic survey using depth transects (0-35 in depth) at three sites showed that benthic assemblages changed continuously along a bathymetric gradient. Assemblages were most patchy at shallow depths and the relative abundance of sessile forms increased with depth, which suggested that disturbance intensity was greatest in the shallows. The immediate effects of iceberg impacts were also investigated. Communities within newly formed iceberg scours were sampled and compared with those in undisturbed areas; scoured assemblages were 95% lower in mean macrofaunal abundance and 75.9% lower in species richness. The recovery of three scour assemblages was monitored for -30 months following the disturbance event. Scoured assemblagesb ecame increasingly similar to undisturbed assemblages over time and marked spatial variability was observed in both scoured and unscoured zones. Experimental markers were designed to detect iceberg impacts and were deployed as 24 grids at four depth increments and two study sites. Markers were surveyed regularly for two years to quantify the frequency of iceberg impacts, which varied significantly with depth, site, season and year. The intensity of disturbance was greatest in the shallows (0-5 m depth) and significantly reduced at 25 m depth. Variation between site and season could be largely explained by the duration of winter fast ice. Extensive sampling at each of the disturbance grids showed that disturbance intensity has a significant and wide-ranging influence on macrobenthic community structure.
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Zhang, Gang. "Surveillance of Influenza A Virus in Environmental Ice and Water Samples." Bowling Green State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1194277650.
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Koçer, Zeynep A. "Detection of Influenza A Viruses From Environmental Lake and Pond Ice." Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1276804585.
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Downer, Joshua, and n/a. "The influence of ocean waves on the distribution of sea ice in an MIZ." University of Otago. Department of Mathematics & Statistics, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070202.120522.
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A marginal ice zone (MIZ) is characterised by distinct ice floes and its direct exposure to the open ocean. Sea ice is typically described as a continuous material but this description can be inappropriate in an MIZ due to the granular nature of the ice cover and the scale of processes acting on the ice floes. In this thesis, the kinematic behaviour of sea ice in an MIZ modelled as a granular material is investigated with an emphasis on the influence of ocean waves.
The kinematic behaviour of a set of ice floes subject to ocean wave forcing was recorded in an experiment conducted in the Ross Sea. Kinematic data were recorded from each ice floe using a GPS receiver, tri-axial accelerometer, and compass. The data show (1) the influence of wave forcing and (2) collisions between neighbouring ice floes. It was also discovered that the GPS receivers were able to resolve the effects of ocean wave forcing despite their poor absolute accuracy.
The number density and normalised structure factor (NSF) are introduced to describe the spatial structure of a set of ice floes. Four idealised distributions (in 1D and 2D) are analysed to gain insight into the way that different factors determine the shape of the NSF. It is shown that (1) a significant sinusoidal deviation causes a peak in the NSF, (2) ordered structure dominates low spatial frequencies, and (3) disorder dominates high spatial frequencies. A comparison of the contributions from these different factors is used to estimate the significance of a sinusoidal deviation in the positions of the ice floes.
A granular model of an MIZ is developed using a novel set of equations of motion to examine the effect of ocean wave forcing. The equations of motion are derived for small ice floes and allows forcing by multiple waves. These equations predict a transient, wave-induced torque, which can be sustained by the application of a second force to the ice floe. Torque induced by the interaction of two forces on an ice floe may be a general feature of sea ice motion.
The number density and NSF are used to analyse the distribution of ice floes in the granular model. At low solids-fractions the number density is correlated at the frequency of the wave forcing. As the solids-fraction is increased this correlation is destroyed by collisions between the ice floes and new correlations are created that are related to the packing structure of the ice floes. When the number density is weighted by the velocity of the ice floes, the correlations between floes are related to the convolution of the wave velocity field and the number density. These correlations may be incorporated into the thickness distribution of large-scale models using the maximum entropy method.
The granular model was also examined as a percolating network of contacts and it was found that percolation was more likely to occur along the crest of a wave than in the direction of propagation.
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Boardman, Carl. "Ice Age wetland biogeochemistry : the influence of carbon dioxide starvation on wetland methane emissions." Thesis, Open University, 2010. http://oro.open.ac.uk/54217/.
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Ice core records show that the atmospheric concentration of methane (CH4) during the Last Glacial Maximum (LGM) was 40-50% lower than during the preindustrial Holocene. To understand this natural variation it is important to know how the sources and sinks of CH4 change over time. Natural wetlands were the single largest contributor of CH4 to the atmosphere in glacial times, yet models used to estimate their behaviour and CH4 flux are largely based around relationships derived under modem day conditions. This thesis responds to this issue by exposing wetland mesocosms with contrasting nutrient availability, to the atmospheric concentration of carbon dioxide (CO2) present at the LGM for 2 years. At the end of this experiment, total CH4 flux was suppressed by an average of 29% in the nutrient rich fen (P < 0.05). In contrast, the nutrient poor bog showed no response to the treatment (P > 0.05). Further exploring the effects of CO2 starvation showed that the fen ecosystem exhibited notable reductions in dissolved organic carbon, dissolved CH4 and a change in the response of CH4 flux to changing temperature, variables and relationships which all remained unchanged in the bog. The contrasting response of the two ecosystems to CO2 starvation could be largely explained by differences in nutrient status, species composition and dominant CH4 production pathways. In particular, it is hypothesised that bog plants under LGM CO2 concentrations supplemented photosynthesis through the use of subsurface derived CO2, thus counteracting the treatment effect. The results from this thesis suggest that the CH4 source strength of late-glacial and early Holocene wetlands may currently be over-estimated because fen ecosystems are a far smaller CH4 source under low atmospheric [CO2] than they are today. Furthermore, the results provide new insights into the role of glacial atmospheric CO2 concentrations in influencing CH4 emissions from terrestrial ecosystems and provide empirical evidence for a connection between glacial-interglacial changes in atmospheric CH4 and CO2 concentrations observed in ice cores.
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Arnold, Neil Stuart. "Modelling the influence of glacier hydrology on the dynamics of the Scandinavian Ice Sheet." Thesis, University of Cambridge, 1994. https://www.repository.cam.ac.uk/handle/1810/273247.
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Fowler, Joshua K. "Influence of Lake Levels and Ice Cover on a Modified Shoreline: Ohio’s Headland Beaches." Youngstown State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1433415129.
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Ballinger, Thomas Justin. "The Influence of Atmosphere-Ocean Teleconnections on Western Arctic Sea Ice and Surface Air Temperature." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1311889468.
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Hoppmann, Mario [Verfasser], Rüdiger [Akademischer Betreuer] Gerdes, Vikram [Akademischer Betreuer] Unnithan, Marcel [Akademischer Betreuer] Nicolaus, and Stefan [Akademischer Betreuer] Hendricks. "Sea-Ice Mass Balance Influenced by Ice Shelves / Mario Hoppmann. Betreuer: Rüdiger Gerdes. Gutachter: Rüdiger Gerdes ; Vikram Unnithan ; Marcel Nicolaus ; Stefan Hendricks." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2015. http://d-nb.info/1087325854/34.
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Ahlstrand, Sanna, Johanna Bender, and Linn Nordström. "A more efficient way of building in a developing country, influenced by industrialized building : A case study in Leticia, Colombia." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-28444.
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Purpose:The purpose of this study is to approach a solution to reduce housing shortage, by using inspiration from an industrialized building concept, which can lead to the opportunity for underprivileged people to get a livable housing. The aim is to study how knowledge from industrialized building could be used for a more efficient way of building in developing countries similar to Colombia. Method:Utilizing literature studies for achieving abutment to published research also giving the authors an observant mind. With this knowledge, participatory observations were made as action research to explore the prevailing procedure when establishing a house. Operating analyzes, interviews were held in Leticia for understanding observed decisions. To be able to critically analyze the results from the interviews and observations, collected data were compared with knowledge based on the authors’ reference frames. Findings:Keystones identified as the overall concept are applicable on establishments in the western world, since the concept is designed after similar conditions. Capital is required designing a building system as well as establishing a factory for prefabrication of elements, conditions limited in developing countries. Climate conditions and prevailing corruption prevents implementation of the concept. Identified weaknesses during the observations, noted repetition of unnecessary and non-value adding activities. One conclusion is not to implement the entire industrial building system, only practice the mindset. Initially keystones are implemented such as planning, exchange of information and reflection of performed projects, in order to improve upcoming projects. These keystones require no direct capital, merely a mindset that should be implemented. Implications:The outcome of this study is to enlighten the subject, since obvious weaknesses were noticed, with capacity for development. Further research is realistic because, in a long term it will help solving the housing situation. For example, using this result as underlay for education like creating more efficient building, enlightening planning for reducing unnecessary non value-adding activities. As a conclusion of the study, identified weaknesses during the establishment affects the efficiency, creating unnecessary costs. A developing country should focus upon emphasizing reduction of costs, since their economic status is already declining. Limitations: The observations during the case study have been concentrating on one small-scaled project in Leticia, Colombia. No further observations have been made but complements such as literature studies and interviews. Due to lack of time and language barrier, the amount of collected empirical data was too limited to provide durable conclusions for question formulations. Since only observations were performed on one establishment, a general result cannot be submitted.
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Brigham, Lawson Walter. "Sea ice variability in Russian Arctic coastal seas : influences on the northern sea route." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621873.
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Huddleston, Amara Lynn. "The Influence of Ice Cover on the Coupling between Lake Erie Larval Walleye and their Prey." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1532082401065932.
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Fitzgerald, Nicola. "The influence of technostress on perceived academic performance : A study on university students in Sweden." Thesis, Malmö universitet, Malmö högskola, Institutionen för datavetenskap och medieteknik (DVMT), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-40720.
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Increased digitisation in higher education requires the usage of various information and communication technologies (ICTs). However, studies have shown that ICTs induce technostress. The purpose of this research is to explore how technology characteristics influence students’ technostress, and in turn their perceived academic performance. To examine this, a survey was sent out to student’s at MAU in Sweden and a bivariate analysis was conducted to analyse the data. The results showed some technology characteristics were associated with technostress, while some were not. The students’ technostress could, however, not be determined to have an association with their perceived academic performance. The study discusses possible contributing factors to the results.
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Quinn, Kelly Ann. "Influence of solution and surface chemistry on yttrium and rare earth element sorption." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001672.
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Bárbulo, Diego. "Influence of sea ice seeding on the spring phytoplankton bloom : An experimental study in the Gulf of Bothnia." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148586.
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The influence of sea ice seeding on the northern Baltic Sea´s pelagic phytoplankton spring bloom was studied in a laboratory experiment in which microcosms mimicked sea conditions. On March 26th, 2018, samples (ice cores and seawater) were taken from land-fast ice at a coastal station in the Gulf of Bothnia. The seeding experiment lasted for 9 days, during which a 12:12 hours light:dark incubation took place. Four different treatments (two with ice and two without it) were set up in twelve incubated microcosms. Samples for analyses were taken on days 0, 3, 6 and 9. On day 0, measurements were carried out on four melted ice cores and on seawater. On the remaining days analyses were performed on the incubated microcosms. The measured variables were: chlorophyll a, phytoplankton abundance, bacterial abundance, conductivity and nutrients (TDN and TDP). The most abundant algal species were identified in a qualitative analysis. The obtained data were processed to calculate the average and standard deviations and to assess the existence of statistically significant differences among the treatments. A significant increase in chlorophyll a, phytoplankton and heterotrophic bacteria abundances was detected. A parallel decline in the nutrient concentrations was observed. A relationship between phytoplankton´s degree of influence and cell-size is suggested: cells > 3µm were more abundant in ice than in seawater, and the opposite tendency was appreciated for cells < 3 µm. My study shows that sea ice seeding can have a marked seeding effect on the size structure of the spring phytoplankton bloom.