Digital Commons Network^™

Coke Deposition On Wox/Sio2 Catalyst Physically Mixed With Magnesium Oxide For Metathesis Reaction Of Ethylene And 2-Butene, Thidaya Thitiapichart

Chulalongkorn University Theses and Dissertations (Chula ETD)

The presence of MgO physically mixed with silica supported tungsten oxide catalysts was investigated in metathesis reaction using ethylene and trans-2-butene as feeds. Adding MgO could enhance the conversion of trans-2-butene and propylene yield, comparing with a catalyst mixed with SiO2 as a referenced one. However, the presence of MgO with silica supported tungsten oxide catalysts surprisingly elevated the coke deposition. The coke precursor was formed by MgO from isomerization of undesired products like C5+ and moved to deposit on the acid sites of silica supported tungsten oxide catalysts which is a coke site of the catalysts. Furthermore, the distance …

Modification Of W/Sio₂ Catalysts By Second Metal For Metathesis Of Ethylene And 2-Butene, Narongrat Poovarawan

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this thesis, the main goals were to study the effect of the dispersion of the tungsten active phase and the modification of WO3/SiO2 catalyst by a second metal for metathesis reaction of the mixture of cis/trans-2-butene and ethylene. The silica supported tungsten catalyst was used as the base catalyst and lanthanum, cerium, yttrium were used as the second metal in this study. It was found that the dispersion of the tungsten active phase would affect the catalytic performance of the WO3/SiO2 catalyst, when the mixture of cis/tran-2-butene was use as feed.The second metal was used to midify the dispersion …

Understanding Insurance Antidiscrimination Laws, Ronen Avraham, Kyle D. Logue, Daniel Schwarcz

Articles

No abstract provided.

The Rhetoric Of War: Words, Conflict, And Categorization Post 9/11, Oren Gross, Fionnuala Ní Aoláin

Articles

No abstract provided.

The Rule Of Law At A Crossroad: Enforcing Corporate Responsibility In International Investment Through The Alien Tort Statute, Jennie Green

Articles

No abstract provided.

The Geography Of Solving Global Environmental Problems: Reflections On Polycentric Efforts To Address Climate Change, Hari M. Osofsky

Articles

This essay considers how we might fit local efforts to address climate change, especially those by very small, suburban cities, within models for solving "global problems." While acknowledging the need for more action on climate change at international, national, and state levels, and regional ones in between, this essay explores how different types of cities, as they participate in multilevel networks, can provide models for action and complement efforts to address climate change through the treaty regime. Using a diverse group of suburbs in the Twin Cities metropolitan region making innovative climate change and sustainability efforts as a case example, …

Teachers’Perception Of Characteristics Of Effective Female School Leaders Of Elementary Schools In Abu Dhabi Emirate, Zahra Saif Malek Al Shehaimi

Theses

This study aimed at identifying the characteristics of effective female school leaders’ from teachers’ perspectives. The objectives of this study are three as follows: a) surveying the literature on the characteristics of effective school leaders., b) examining the reality to what extend the school leaders are effective, and c) finding other characteristics in which school leaders in Al Ain and Abu Dhabi schools can develop their effectiveness at schools. The research employed a quantitative analysis to answer the research questions. The results of this study indicated that teachers' perception towards their principal is positive. Teachers in the Abu Dhabi and …

الصحة النفسية، والقلق والاكتئاب لدى مجهولي النسب في دولة الإمارات العربية المتحدة, موزة علي خلفان النعيمي

Theses

هدفت الدراسة الحالية إلى التعرف على مستويات القلق، والاكتئاب والصحة النفسية لدى مجهولي النسب في دولة الإمارات العربية المتحدة، وعلاقتها ببعض المتغيرات الديموغرافية والمتمثلة بالجنس (النوع الاجتماعي).

تكونت عينة الدراسة من (73) فرد من مجهولي النسب والمقيمين في دار زايد للرعاية الأسرية في إمارة أبو ظبي (أبو ظبي والعين). وتم تطبيق قائمة بيك للاكتئاب، واختبار سمة القلق لسبيلبيرغر، ومقياس الصحة النفسية العامة، تم استخراج المتوسطات الحسابية والانحرافات المعيارية والتكرارات واختبار ( ) للإجابة عن أسئلة الدراسة.

توصلت الدراسة إلى وجود مستويات من القلق والاكتئاب لدى أفراد العينة حيث بلغت نسبة الأفراد الذين يعانون من الاكتئاب (المتوسط إلى الشديد) (28.7%) والأفراد …

Improving The Selection Of Public School Principals In Al-Ain Education Office, Hana Ali Alhelali

Theses

This study aimed to investigate the perceptions of principals, vice principals, and teachers on selection criteria and recruitment procedures for AI Ain public school principals. The study was guided by three research questions and used the quantitative research method. Data for this study were collected through a questionnaire divided into three sections. The first section included demographic information of participants. The second part included 48 items about recruitment and selection, which measure agreement or disagreement of participants over the items in the five components. These components were application requirements, selection responsibility, selection methods, selection criteria, and recruiting procedures. The third …

Facing Global Economic Crisis: Foreign Sales, Ownership Groups, And Corporate Value, Xufei Ma, Daphne W. Yiu, Nan Zhou

Research Collection Lee Kong Chian School Of Business

This study extends the research on internationalization to a new organizational context emerging market firms (EMF), and a new time context global economic crisis. We propose a U-shaped relationship between foreign sales intensity and firm value for EMFs during global economic crisis. Further, we distinguish between EMFs' relational owners (i.e., business groups) and transactional owners (i.e., institutional investors) to investigate their different moderating effects. We find empirical support for our hypotheses using a sample of Chinese firms during the global economic crisis in 2008. Moreover, we provide research and practice implications.

The Attitudes Of The Abu Dhabi Tawteen Council (Adtc) Employees Towards The Professional Development Programs., Ahlam Alhashemi

Theses

This study aimed to explore the attitudes of the Abu Dhabi Tawteen Council (ADTC) employees towards the professional development programs provided to them by ADTC. The study was guided by three research questions and used the quantitative method. Data for this study were collected through a questionnaire. The questionnaire were divided into cover four topics which are: attitudes toward the importance of professional development, attitudes towards the planning of professional development, and attitudes toward the types and ways of professional development. In addition, there were two open ended questions. The one hundred and forty employees of ADTC was the population …

Teachers’ Perception Of Characteristics Of Effective Female School Leaders Of Elementary Schools In Abu Dhabi Emirate, Zahra Saif Malek Alshehaimi

Theses

This study aimed at identifying the characteristics of effective female school leaders’ from teachers’ perspectives. The objectives of this study are three as follows: a) surveying the literature on the characteristics of effective school leaders, b) examining the reality of what extend the school leaders are effective, and c) finding other characteristics in which school leaders in Al Ain and Abu Dhabi schools can develop their effectiveness at schools. The research employed a quantitative analysis to answer the research questions. The results of this study indicated that teachers’ perception towards their principal is positive. Teachers in the Abu Dhabi and …

Collaborative School Culture In Al Ain Secondary Schools: A Qualitative Study Of One Female And One Male School., Rania Mohamad Alqarqaz

Theses

The purpose of this study was to investigate the extent of collaborative school culture in two of Al Ain Cycle Three schools. The first school was a female school and the second one was a male school. These two schools are under the supervision of Abu Dhabi Educational Council (ADEC) in United Arab Emirates. They were part of 11 secondary schools studied by Falouqa (2013). She studied the collaborative school culture in these 11 schools using a questionnaire for data collection. The questionnaire was used to measure the six components of collaborative school culture (CSC) as conceptualized by Gruenert (2005). …

بطلان حكم التحكيم وآثاره في القانون الإماراتي, سليمان حسن عبد الرحيم محمود البلوشي

Theses

No abstract provided.

الأساس القانوني لتسليم المجرمين: المبدأ والاستثناءات مع التطبيق على القانون الإماراتي, شيخه جنيت محمد الراشدي

Theses

No abstract provided.

The Evolution Of Account Names : How Can Form And Function Co-Exist?, Craig Cerkowniak

Theses and Dissertations

No abstract provided.

Making Big Change In Small Sizes: Critical Success Factors For Managing Change In Smes, Richard Raymond Smith, Ting Wang

Research Collection Lee Kong Chian School Of Business

Managing change can be a challenge especially for the SME with limited resources. Here are five factors that have proven to be powerful in execution.

Is The Cross-Section Of Expected Bond Returns Influenced By Equity Return Predictors?, Tarun Chordia, Amit Goyal, Yoshio Nozowa, Avanidhar Subrahmanyam, Qing Tong

Research Collection Lee Kong Chian School Of Business

This paper studies whether the commonly analyzed equity return predictors also predict corporate bond returns. Bond markets do price risk, but are also susceptible to delayed information transmission relative to equities. Firm size and profitability are negatively priced while idiosyncratic volatility is positively priced, suggesting that large firms, more profitable firms and relatively less volatile firms are more attractive to bond investors, thus requiring lower returns. Consistent with a relatively sophisticated institutional clientele, bonds are efficiently priced in that none of the behaviorally-motivated variables provide profitable trading strategies after accounting for transactions costs, though some risk-based variables continue to do …

Perspective-Taking Increases Willingness To Engage In Intergroup Contact, Cynthia Wang, Kenneth Tai, Gillian Ku, Adam D. Galinsky

Research Collection Lee Kong Chian School Of Business

Duplicate record, see https://ink.library.smu.edu.sg/lkcsb_research/3631/. The current research explored whether perspective-taking increases willingness to engage in contact with stereotyped outgroup members. Across three studies, we find that perspective-taking increases willingness to engage in contact with negatively-stereotyped targets. In Study 1, perspective-takers sat closer to, whereas stereotype suppressors sat further from, a hooligan compared to control participants. In Study 2, individual differences in perspective-taking tendencies predicted individuals’ willingness to engage in contact with a hooligan, having effects above and beyond those of empathic concern. Finally, Study 3 demonstrated that perspective-taking’s effects on intergroup contact extend to the target’s group (i.e., another …

Effective Methods Of Communication Between Principals And High Schools Teachers In Al-Ain City, Thuraya Yousuf Abdul Rahman

Theses

From the teacher perspective this research paper will introduce the best communication methods that are used by principals and teaching staff in the Al Ain Education Zone, and giving suggestions to improve the communication between the principals and teachers. To achieve the goals from this study, the researcher select 226 teachers both male and female from 1 0 high schools in Al Ain. The researcher conducted a survey to measure the methods which can ease the communication between principals and teachers.

The researcher used different techniques to determine the averages and standard deviation to analyses the answers of the survey. …

Heat Misconceptions Among 11th Grade Students, Amnah Mohamed Abdullah Al Kaabi

Theses

This study explores the misconception of the female students at 11^thgrade about the heat concepts (e.g., latency, conduction, equilibrium, boiling point, etc.) the study targets to i – classifying the misconception nature, and ii- distinguishing the heat misconception from point of the lack of knowledge and lucky guess. A sample of 230 female students at 11^th grade randomly selected from five secondary schools in the Emirates of Fujairah; northern UAE. The heat misconception test (HMT), a three –tier diagnostic instrument comprising of ten question is used as data collection tool. The study raises the three research questions. …

Wide-Gain Range Bridgeless Pfc Modified Sepic Rectifier, Ahmed Mohammed Ahmed Al Gabri

Theses

With the increasing demand for power from the ac line and more strict limits for power quality, power factor correction has gained great attention in recent years. AII basic power converter topologies, such as Boost, Buck, Buck-Boost, and their variations, can be used to realize active PFC techniques. In this research, a new bridge less rectifier that operates with high power factor and high efficiency is investigated targeting LED and battery charging applications. The new topology is a high-power-factor rectifier, which is suitable for universal line base on a modified version of the single-ended primary inductance converter (SEPIC) operating in …

Ratings Lead You To The Product, Reviews Help You Clinch It? The Dynamics And Impact Of Online Review Sentiments On Products Sales, Nan Hu, Noi Sian Koh, Srinivas K. Reddy

Research Collection Lee Kong Chian School Of Business

It is generally assumed that ratings are a numeric representation of text sentiments and their valences are consistent. This however may not always be true. Using a panel of data on over 4000 books from Amazon.com, we develop a multiple equation model to examine the inter-relationships between ratings, sentiments, and sales. We find that ratings do not have a significant direct impact on sales but have an indirect impact through sentiments. Sentiments, however, have a direct significant impact on sales. Our findings also indicate that the two most accessible types of reviews - most helpful and most recent - play …

Social Networks Among Auction Bidders: The Role Of Key Bidders And Structural Properties On Auction Prices, Mayukh Dass, Srinivas K. Reddy, Dawn Iacobucci

Research Collection Lee Kong Chian School Of Business

Auctions have been studied extensively as an economic marketplace. The economist’s focus is on modeling final sales prices, but the processes that give rise to those outcomes are rarely studied in great detail. This research is intended to provide that complementary perspective. We show how the interactions between bidders in an auction unfold in a dynamic pattern of bids and counter-bids, and thereby over the duration of an auction, create a network structure. The auction network contributes significantly to models of price dynamics and the network predicts final sales prices better than economic (non-network) indicators alone. In addition, network analyses …

Anticipated Regret In Time-Based Work-Family Conflict, Jessica Bagger, Jochen Reb, Andrew Li

Research Collection Lee Kong Chian School Of Business

The primary purpose of this research was to investigate the role of anticipated regret in time-based work-family conflict decisions.

A total of 90 working parents responded to a decision making problem describing a time-based conflict between a work event and a family event. Participants' preference for which event to attend constituted the dependent variable. Independent variables were participants' work and family centralities. Anticipated regret for choosing the work option and anticipated regret for choosing the family option were measured as hypothesized mediators.

Structural equation modeling revealed that anticipated regret for choosing the family option mediated the relationship between work centrality …

Refocusing The Lens: Singapore's Private Enterprises In China, Caroline Yeoh, Wilfred Pow Ngee How, Ye Zhang

Research Collection Lee Kong Chian School Of Business

In recent years, financial and political instabilities have cooled economic growth in many regions. Even in this context, however, areas of strong growth remain; none, arguably, more prominent than ever-developing and increasingly affluent China, which is today a vastly different environment than even several years ago. More than ever, a wealth of opportunity subsists in this ancient land – and businesses must be able to adapt and seize these opportunities. Thus we turn towards Singapore private enterprise in China, to study once more the efficacy of the city-state's internationalization strategies in the context of the private enterprises which must eventually …

Can The Raped Woman Speak?, Zainab El-Mansi

Dentistry

Rape has been known since the dawn of history as a method by which women were subjugated to the power of men. This horrid experience has always been silenced for several reasons which will be investigated in this book. Literature has always been able to uncover what is barred from expression; hence, part of this book is dedicated to surveying the different literary representations of this traumatic experience. What this book is concerned with is war rape, as it gains further connotations during wars and political conflicts. War rape is depicted in the two literary texts of analysis here: Coetzee's …

Becoming A Sex Offender: A Study Of Constitution At The Intersection Of The Mental Health And Legal Systems, Jessica Callanan

Electronic Theses and Dissertations

This research conceptualizes "sex offender" as an institutional category. The purpose of this research is to show how people become constituted as sex offenders in the context of the two systems that make demands of them: the mental health and legal systems. These systems view sex offenders in ways that contradict, in that they are viewed as sick by the mental health system and as criminal or bad by the legal system. As a result, the demands these systems make contradict and at times impose double binds on the people who have to navigate them. The data I collected demonstrate …

Sojourning In The Margin: Living As Wives Of International Students, Mengchun Chiang

Electronic Theses and Dissertations

Whereas concerns for international students frequently appear in existing literature, little attention is paid to wives of international students (WoIS). This study aims at describing and understanding lives of WoIS in the United States as sojourners in the margin. The research begins with a literature review and an examination of theoretical frames: from the cultural shock literature, acculturative stress literature, to atheoretical studies; and from cross-cultural psychology, cultural psychology, to indigenous psychology. Methodologically, this study is qualitative in nature, utilizing interview data from WoIS. In addition to a description and interpretation of the WoIS's narratives, the study also wrestles with …

Mongolian Folklore Expressed Through Music Technology Original Multimedia Soundtrack On Horseback, Xinlei Chu

Electronic Theses and Dissertations

I returned to my hometown and recorded Mongolian folk music- Mongolian Long Song and Mongolian Throat Singing. I wanted to combine technology and traditional folk music and write an electronic piece based on Mongolian vocal materials. I used what I've sampled, manipulated the sounds, composed the music, gathered the videos together and created this multimedia piece - On Horseback. The names of the four movements - Sand, Cloud, Water, and Fire - are four elements that I chose to represent the lifestyle in Inner Mongolia.

This thesis covers the journey of how I created this piece. I've explored many variations …