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Computerized Approaches to Enhance Understanding of Organic Reaction Mechanisms: CAN Reaction Mechanisms and CPLEX Prelaboratory Methodology

The utility of CPLEX was further demonstrated by enabling a study of the effectiveness of animated reaction mechanisms to promote student learning. While most instructors believe that animated mechanisms aid student understanding of reactions, there has been no quantitative data to-date to support this view. In this work, a quantitative study, using an experimental/control group study, was conducted to provide data on the effectiveness of animated reaction mechanisms to promote student learning. Analysis of student answers, using an appropriate rubric, demonstrated that there was a statistically significant improvement in students' scores in the mechanistic question of a pre-laboratory quiz in the post-treatment results of the experimental group which had had access to the animated reaction mechanisms (Chapter 3).

This format was adopted because many of the students had previously used
WE_LEARN as a teaching supplement in their lecture, thereby providing a
presentation technology in a format to which they had become accustomed.

How Online Distance Education Technology Can Improve Higher Education in Kenya

Through a literature review, and case study, this paper seeks to determine if online distance learning can assist in reducing the problems Kenya's current higher education institutions are facing, and if so, what can be done to facilitate the implementation of such programs? There are no human subjects involved so a consent form is not necessary, and neither is a sampling procedure. This study relies on an examination of the current situation in Kenya, with a strong focus on The University of Nairobi, where the desirability of establishing an external degree programme (EDP) through distance education has been deliberated for decades. The data collection will consist of researching data for the case study of Kenya and organizing and analyzing that data as a means of answering the above research questions. No additional or original data will be gathered due to the limits of conducting research in a country that is so far away from the researcher. The researcher will therefore rely on data already collected but that has yet to be synthesized and analyzed in regard to the specific research questions.

... is used as the primary mode of delivery; no industry estimates or data sources
capture the number of faculty or courses ... students who choose to supplement
their course load with online offerings as a matter of convenience or preference.

Psychological Activity in the Homeric Circe Episode

Circe guides Odysseus towards the recuperation of his mental powers. First she sends him to Hades, where he recovers his self-awareness. Then she offers him practical advice for the last part of his journey. Yet in all of her instructions there is still room for individual decision-making. In the Odyssey the gods may know the inevitable outcome of certain alternatives, but men's fortune is very much determined by their own decisions.

Circe guides Odysseus towards the recuperation of his mental powers.

Contradictions in Power, Sexuality, and Consent

An Institutional Ethnography of Male Neonatal Circumcision

Enjoy a wide range of dissertations and theses published from graduate schools and universities from around the world. Covering a wide range of academic topics, we are happy to increase overall global access to these works and make them available outside of traditional academic databases. These works are packaged and produced by BiblioLabs under license by ProQuest UMI. The description for these dissertations was produced by BiblioLabs and is in no way affiliated with, in connection with, or representative of the abstract meta-data associated with the dissertations published by ProQuest UMI. If you have any questions relating to this particular dissertation, you may contact BiblioLabs directly.

These works are packaged and produced by BiblioLabs under license by ProQuest UMI.

Voice as a Technology of Selfhood: Towards an Analysis of Racialized Timbre and Vocal Performance

In this dissertation I examine the production of race through sound in general and vocal timbre in particular, and investigate how the construction of the black voice---against the backdrop of the normative white---in opera, spirituals, and popular music reflects deeply-held American ideas about race. Which processes have contributed to the racialized perception and reification of timbre? What are some of the social and political processes embedded in the cultural capital possessed by certain vocal timbres in specific cultural contexts and various historical periods?

Therefore, as we will see in the work of Suzanne Cusick, these theories can be
fruitful to explore when investigating music performance. Performing Vocal
Timbre and Identity: Suzanne Cusick Suzanne Cusick is one of the few who has ...

Food-sharing Networks in Lamalera, Indonesia: Tests of Adaptive Hypotheses

This dissertation presents a quantitative study of food sharing in the Indonesian fishing and whaling village of Lamalera, Indonesia. The objective is to test hypotheses derived from the anthropological field of human behavioral ecology about the adaptive nature of human food sharing. The hypotheses tested include: kin selection, which predicts that individuals will share with those to whom they are closely related; reciprocal altruism, which predicts that individuals will share with those who share in return; tolerated scrounging, which predicts that food is relinquished when the owner values the food less than the cost of resisting demands from others; and costly signaling, which predicts that sharing functions as a signal of some otherwise unobservable trait of the donor. These hypotheses are not mutually exclusive and so social network methods, primarily exponential random graph modeling or ERGM, are used to test what proportion of variation in food sharing can be explained by each hypothesis. The results show that genetic relatedness, residential propinquity, and return sharing from a potential recipient all strongly increase the probability of sharing by a donor household to the recipient. Reciprocity between households explains 45% of the variation in sharing relationships after controlling for network density, almost three times the variation that kinship and residential distance explain individually. All three together account for over half the variance in the network. Kinship is a stronger predictor of sharing between residentially distant households, while reciprocity is more common among both residentially and genealogically close households. Households of higher status both give and receive more than those of lower status. While sharing may function as an alliance-building signaling strategy for a few higher-status households, household status explains little variation in the sharing network as a whole. Tolerated scrounging appears to be inconsistent with ethnographic observations, but an emerging "relaxed" version of the hypothesis cannot be entirely excluded as an explanation for some food transfers. The results show the strongest support for the reciprocal altruism and kin selection hypotheses, though additional variation remains to be explained.

During the study period out of 813 sapa fishing forays 623 or 76.6% were
successful. However, "successful" here simply means returning with one or more
fish. Returns from small boats can vary from as little as a single fish to as much as
four ...

Reparatursequenzen in L2-Pruefungen: Positionierung und Fokus auf Form

Conversation analysis is the methodology used to analyse the recorded spoken data. The data is first discussed within the context of research on focus on form, including research on learner uptake. To provide new insights in this discussion, the analysis goes further to include the perspective of positioning theory, in particular the aspect of different storylines. Taking interactional repair as the focus of discussion, my analysis shows that form cannot always be strictly separated from meaning when it comes to repair; it also proves that positioning theory plays a considerable role in relation to both repair initiation by teachers and students as well as their reactions to it. Thus, the participants' positioning has a significant effect on why some repair moves are likely to occur while others are not.

Conversation analysis is the methodology used to analyse the recorded spoken data.

Inventory Optimization in Large Scale Multi-echelon Spare Parts Inventory Systems

In this research, we modeled a two-echelon inventory system that is faced with Poisson demands, implements an (R, Q) policies, assumes fixed warehouse's lead-time, and fixed and stochastic retailer's lead-times. The main objective of this research was to develop a solution procedure for the two-echelon inventory system under consideration.

In this research, we modeled a two-echelon inventory system that is faced with Poisson demands, implements an (R, Q) policies, assumes fixed warehouse's lead-time, and fixed and stochastic retailer's lead-times.

Opportunistic Conduct and Governance Structure in Startup Firms

This dissertation contains three essays that explore the risk of opportunistic conduct between entrepreneurs and investors. Existing theory shows that the allocation of control rights within the firm affects the risk of ex post opportunism.

This dissertation contains three essays that explore the risk of opportunistic conduct between entrepreneurs and investors. Existing theory shows that the allocation of control rights within the firm affects the risk of ex post opportunism.

The Influence of Public Relations on News Coverage and Public Perceptions of Foreign Countries

This study found, first, that news portrayal of foreign countries significantly affects public's cognitive and affective evaluation of those countries. However, this study provided limited influence of international PR efforts on either news coverage or public perceptions.

The results of the Chicago Council on Foreign Relations (CCFR) survey were
also analyzed to examine U.S. public perceptions of select countries. Second,
content analysis was conducted to reveal the nature of U.S. news coverage of
foreign ...