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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
441

Starch Resin Moisture Level Effect on Injection Molding Processability and Molded Part Mechanical Properties with Pure Starch Resin and Polymer Blends

Ellingson, Jordan M. 16 March 2013 (has links) (PDF)
The current and forecasted global consumption of plastic packaging and products through the 21st century combined with the already reported and growing negative impact of plastics on the environment due to plastics being synthesized from nonrenewable resources that do not biodegrade is of serious concern. However, recent advances in starch technology including the development of thermoplastic starch (TPS) materials —polymers that are both renewable and biodegradable—have brought hope to reducing this impact. The mechanical properties of thermoplastic starch have often been improved by blending with synthetic polymers. One issue that arises with blending is volatilization of the melt from moisture in the TPS materials. Ecostarch™ a proprietary, pelletized thermoplastic starch resin formulated from potato starch, was processed and tested to observe injection molding processability at various moisture levels, in pure TPS as well as various blend ratios with high-density polyethylene (HDPE) and polypropylene (PP). This study evaluated and analyzed the effects of the TPS pellet moisture content on void formation in the plastic pre-injection melt and subsequent molded part mechanical properties. Statistical analysis of the test results showed that moisture had a significant effect on void formation in the plastic melt. In TPS/HDPE blends, voids percent (as measured by cross section area) increased by 300-350% from 0.6% to 1.4% moisture levels. In unblended TPS, void percent increased by 150% from 0.4% to 1.4% moisture levels. In the unblended TPS parts, impact strength (energy in ft-lb) was decreased by 1% from 0.6% to 1.4% moisture level. In the TPS/HDPE and TPS/PP blends, there was no significant effect on impact strength due to the moisture percent levels of the TPS. Modulus decreased by 25% from 0.4% to 1.4% moisture level in unblended TPS parts. From 0.6% to 1.4% change in TPS moisture content, the modulus of the TPS/HDPE blend decreased by 9% at a 30% TPS/70% HDPE blend and decreased by 14% at a 70% TPS/30% HDPE blend. Though the moisture of TPS did not have a significant impact on the tensile strength of TPS/HDPE blends, the tensile strength of TPS/PP blend samples were significantly affected: a change from 0.6% to 1.4% moisture increased tensile strength 34% at a 70% TPS/30% PP blend and increased tensile strength by 22% at a 30% TPS/70% PP blend. Thus the results of this study highlight the relationships between moisture, voids, and mechanical performance of TPS and TPS/Polymer blends.
442

Degrees of causality an assessment of endogenous contributors to instability in jordan, syria, & turkey

Wilman, Gabriel 01 May 2012 (has links)
The political instability of the Middle East is often perceived to be derived primarily from the interaction of Middle Eastern nations with external forces; with significant emphasis placed upon the disruptive effects of modern colonialism and Westernization. While this study does not seek to directly contest the catalytic primacy of exogenous factors, it does seek to establish the necessary causality of pre-existing internal factors. Rather than approaching the situation from a linear causal perspective, this assessment is oriented around an interdisciplinary examination of confluent factors. By examining the political history, ethno sociology, and economy of the region, the analysis investigates the underlying variables which have contributed to the instability of the Jordan, Syria, and Turkey. The primary conclusion of this analysis is that the interactions of multiple endogenous variables provide a basis of necessary causality which may be of equal causal import to that of modern colonialism and Westernization.
443

Is Conflict a Factor in a Population's Quality of Life? A Comparative Study of University Students in the Palestinian Territories and Jordan

Asi, Yara 01 January 2015 (has links)
As nearly one third of the world's population lives in an area that is in some way touched by war, researchers have long been interested in the varied impacts of conflict on civilians. Many indicators, measuring both physical and mental constructs, have been assessed in war-torn populations from around the world, one of which is health-related quality of life (HRQoL). The occupied Palestinian Territories (oPt) are one region in which copious research on health indicators has been undertaken in an effort to understand how long-term conflict manifests itself in noncombatant populations. However, existing studies focus primarily on indicators within the Palestinian population itself that impact HRQoL, and not on the extent to which the presence of the conflict and its consequences disturb physical and mental health outcomes compared to areas without conflict. The purpose of this study is to evaluate the impact of long-term conflict by comparing HRQoL in the oPt and the neighboring country of Jordan, as well as to assess how demographic factors such as socioeconomic status and household size can moderate or aggravate this impact. The potential mediating factors of insecurity and perceived stress will also be assessed. This study found that the presence of conflict was not the most significant predictor of low HRQoL. The mitigating factor of a traditional foundation of mental resilience in Palestinian culture is addressed as a potential explanation for this result. The implications of this study are wide-ranging, particularly in their ability to contribute to healthcare policy recommendations in war-affected areas, and to bolster our understanding of the health status and needs of those living in these areas.
444

A model for the Adoption and Implementation of Web-based Government services and applications. A Study Based in Grounded Theory Validated by Structural Equation Modelling Analysis in a Jordanian Context.

Elsheikh, Yousef M.A. January 2011 (has links)
Among the many promises of the revolution in the information and communication technologies (ICT), particularly the Internet, continues to be its potential to significantly transform governments around the world. This transformation is referred to as e-government or web-based government, often used interchangeably in most of the IS literature. Despite these however, the level of adoption and use of such innovation is still low and does not meet expectations in developing countries in general and Jordan in particular. Yet, existing research on the adoption and implementation of e-government in developing countries is still lacking explanatory power for the following reasons: 1) focusing either on the supply-side, or on the demand-side separately to study the adoption and implementation of e-government, and therefore there is no enough research on the integration between them as a single phenomenon, and 2) focusing on the results of previous research, and therefore not to develop theories fit the new context to be investigated to understand the relationship between the IT implementation and social structures in the same context. This research aims to fill these gaps through the use of a holistic approach to enable in-depth understanding and gain valuable insights on the adoption and implementation of e-government from multiple perspectives, and in the real context of a developing country, namely Jordan. This would reduce the gap between government strategies and policies related to implementation of e-government services and applications on the one hand, and perceptions of citizens on the other hand, allowing a better understanding of the needs of citizens and the priorities that must be taken into account by governments in order to ensure the success of such projects on a large scale. Through two phases, this research proposes and empirically tests an integrated model of the determinants of adoption and implementation of e-government services and applications in Jordan. The first phase employs a grounded theory methodology for the development of the research model, as well as the survey instruments necessary to test the model. The second phase employs a survey questionnaire to test the research model using multivariate and SEM with the results demonstrating support for the proposed model. The empirical results indicate that perceived ease of use, perceived usefulness, and the security of e-government systems are no longer among the main determinants that affect the decision to adopt and implement e-government services and applications in this particular context. This confirms that the prevailing models and theories on the adoption of IT do not apply equally to the context of developing countries such as Jordan, and thus do not explain and predict behaviour toward the adoption and implementation of e-government services and applications in the same context. There is a direct and positive relationship between citizen involvement in the change process towards e-government and the decision to adopt and implement e-government services and applications. There is also a strong positive relationship between the decision to adopt and implement e-government services and applications and the decision to use such services and applications within the same context. Unexpectedly, the prevailing sociocultural determinants indicate a direct and positive relationship with the decision to adopt and implement e-government services and applications in the same context. Also, the results indicate direct and negative relationships between citizen trust and website design issues with the decision to adopt and implement e-government services and applications. Finally, the research concludes by highlighting the theoretical and practical implications, limitations and future directions.
445

Assessment Of Corporate Governance Practices In Jordan: An Empirical Investigation

Hendawi, Raed Diab Moh’d January 2013 (has links)
Corporate Governance (CG) nowadays is on the agenda of most developed and developing countries, including Jordan, and is receiving considerable attention in the business world as well as in the area of academic research, which is an indication of its importance for business development and society as a whole. The knowledge base about CG in developing countries appears to be limited, but it is growing in size and importance. This study therefore aims to investigate current CG practices and barriers to the development of good CG practices in firms. In order to accomplish the research objectives, a mixed research methodology was adopted. The findings of the study contribute to knowledge by providing empirical data to test and extend the theory of CG. The results suggest that most big and old firms are applying best practice of good CG. Regarding factors inhibiting the practice of effective CG, the results indicate that weakness of the legal environment for firms and lack of knowledge of BODs about CG principles are the most important factors. The empirical results find that constitution, compliance and conscience will affect firm’s performance positively. Separation between the position of CEO and Chairman, the existence of independent NEDs, the use of board subcommittees and a strong disclosure regime also help firms to improve performance. On the basis of the empirical results, the study recommends that the government needs to reform the relevant legislation. These suggestions may strengthen the internal governance of firms, thereby increasing performance and maximise shareholders’ wealth.
446

Navigating Past the Crucible and into the Blue : The Water Energy Nexus: The bold plan signed by Israel, Jordan and the UAE addressing climate, peace and trade. Can the promise of a better future really be wrested from the clutches of past conflict in the Middle East?

Gisle, Tobias January 2023 (has links)
The Water Energy Nexus or WEN is an understanding between Israel, Jordan and the United Arab Emirates (UAE) whereby Israel will provide Jordan with desalinated water in return for Jordan providing Israel with renewable energy (RE). The UAE will finance the new RE projects in Jordan earmarked for this task. The Memorandum of Understanding (MoU) between the three countries was signed in December of 2021. This idea was hatched by the NGO EcoPeace and under the framework of the Abraham Accords signed in 2020 between Israel, the UAE and Bahrain and the peace treaty between Israel and Jordan in 1994. Yet even this ambition is modest in comparison to the visions of EcoPeace, where in the longer term they would like to see the EU as the model to aspire to, using green technology as the founding pillar to drive trade, expand renewable energy, export water and water usage models and create a bedrock of expanding peace. This thesis will attempt to ascertain how credible these dreams are by delving into the histories of each of these three countries regarding diplomacy, environment, green technology, the green transition, land usage, water and narrative. As a starting point, it will evaluate current narratives coming from Israel and the Arab world by looking at articles mentioning the “other countries” in three newspapers, Al Jazeera, Times of Israel and the Jerusalem Post. Above all the background of the Israeli/Palestinian conflict looms large in many of these questions.
447

Urbanization and Identity: The Building of Amman in the Twentieth Century

Pilder, Andrew David 12 December 2011 (has links)
No description available.
448

THE BEDOUIN KNOW: USING LOCAL KNOWLEDGE TO UNDERSTAND THE EFFECTS OF DEVELOPMENT AT THE WADI RUM PROTECTED AREA IN SOUTHERN JORDAN

Strachan, Laura M. 10 1900 (has links)
<p>There are two central themes to this thesis. Firstly, it shows how the adoption of people-centered and greening development paradigms, designed to improve mainstream development problems of the late 20<sup>th</sup> century, continue to produce unsatisfactory and unsustainable results for intended beneficiaries in the 21<sup>st</sup> century. Secondly, it shows how the “intended beneficiaries” use their experiences and their knowledge of the development processes to analyze, explain and voice why it has not worked for them. Their <em>local knowledge</em> illustrates how beneficiaries continue to remain on the “outside” or peripheral to development instead of being equal partners as the people-centered discourse claims.</p> <p>This thesis reviews the development of the Wadi Rum Protected Area (WRPA) in southern Jordan. This development fostered both conservation and tourism projects to assist members of the seven local Bedouin communities or clans whose historical rangelands constitute the protected area. Four significant development decisions and projects are examined to better understand how this development functioned. Many Bedouin commentaries and those of some non-Bedouin involved in the projects provide social, economic and environmental assessments of the protected area's progress over a ten year continuum. What emerges is a nuanced awareness of how the WRPA has not achieved its stated goals or the benefits promised to the Bedouin, but did support other developers', lenders' and government objectives. Bedouin knowledge also highlights how “development” has contributed to a near dissolution of their control over what had been their tourism industry, how it has usurped their control of their lands and villages, how the project has created greater divisiveness between and within the clans and how it has come to support the growth of tourism over environmental protection. In general, the development of the Wadi Rum Protected Area has not achieved its people-centered and green goals.</p> / Doctor of Philosophy (PhD)
449

Institutional reform and entry mode by foreign firms: The case of Jordan

El Said, H., McDonald, Frank January 2002 (has links)
Yes / This paper investigates the links between institutional systems and the entry mode of Multinational Corporations (MNCs) in developing and transition countries (DTCs). An assessment is made of the reasons for the continuing use of international joint ventures (IJVs) in countries that have undergone reforms intended to lead to the development of wholly owned subsidiaries. The paper argues that formal and informal institutional constraints in DTCs lead to high transaction and uncertainty costs for MNCs, and that the use of IJVs is a rational response to attempt to lower these high costs. The paper follows the literature suggesting that IJVs are normally a `second best¿ entry mode in terms of the potential for foreign direct investment (FDI) to contribute to the development of DTCs. The reform process in Jordan is used to illustrate how institutional systems, especially informal institutional constraints, lead to high transaction and uncertainty costs. In the case of Jordan, this occurred despite a series of four reform packages seeking to reduce the institutional barriers to effective business activities. Interviews of 28 foreign companies provide the basis for an empirical assessment of the importance of both formal and informal institutional constraints and infrastructure problems. The paper includes an outline of a future research agenda that seeks to generalise and develop the results from Jordan to other DTCs.
450

Team-Based Learning Approach for the Delivery of Over-the-counter Module in the Faculty of Pharmacy in Jordan

Basheer, H.A., Isreb, Mohammad, Batarseh, Y.S., Tweddell, Simon 17 June 2022 (has links)
Yes / Team-based learning is an active learning strategy that focuses on student’s engagement, development of critical thinking, and transferable skills needed in the workplace. While many pharmacy faculties around the world have applied team-based learning into their curriculums, the implementation of team-based learning into the Middle East is still in the experimental phase and poses its own challenges. This reflective statement elaborates on our experience and feedback of implementing team-based learning for the first time at the pharmacy faculty of Zarqa University in Jordan through the delivery of over-the-counter module.

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