Digital Commons Network^™

The Proposal For Implementation Of Controlled Power Rectifier (3000/4000kw) In Mta New York City Transit (Mta-Nyct), Md Aminul Islam

Dissertations and Theses

The MTA New York City Transit (MTA-NYCT) will require a robust and reconfigurable power system capable of supplying high power in order to be able to provide services based on for cased future forecast growth of the city population. A critical component in such a system is the Phase Controlled Rectifier. As such, the issues associated with the inclusion of a power electronics rectifier need to be addressed. These issues include input Alternating Current (AC) interface requirements, the output Direct Current (DC) load profile, and overall stability in the output voltage for Train car loads.

Understanding these issues, providing possible …

Integrated Hydrologic Land Surface State Climate Indicators, Brian Lamb

Dissertations and Theses

No abstract provided.

Citizens Electoral Behavior In Autocratic Regimes, Venezuela, Turkey, Russia, Marta Diaz Fernandez-Lomana

Dissertations and Theses

This study offers an explanation of why voters repeatedly choose leaders who came to power democratically at some point but will not abandon it when they ought to. Research shows leaders will employ any and every mechanism to remain in power, from restricting liberties to turning to violence as a method of repressing dissidence yet voters continue to vote them back into power. Why? Through an examination of the current situations in Venezuela, Turkey and Russia, the thesis reveals that economic performance provides the key explanation. If the country provides welfare to its citizens, they will be willing to overlook …

Sex Dependent Efficacy Of Taurine As A Treatment For Cocaine Drug Use: A Study Of Reward, Kevin Uribe

Dissertations and Theses

No abstract provided.

A Christian Nation: How Christianity United The People Of The Cherokee Nation, Mary Brown

Dissertations and Theses

No abstract provided.

Do Oil Economies In Sub-Sahara Africa, Rebecca Girma

Dissertations and Theses

The African continent provides majority of the world’s raw material for technology and fine jewelry. Countries dependent on their extractive industries lag behind on developmental goals. Their GDPs are high as well as their national poverty levels. This paper explores the factors in which a nation lacks development when it is financially wealthy to do so. There are similar patterns in nations where resource curse has occurred. What is the key to sustainable development in Sub-Saharan Africa? Is solving corruption and migrating away from a market dependent on primary exports the answer? Can they transition from the ancient patrimonial state …

Health, Wellbeing, And Academic Achievement Among Urban College Students, Elise Tanzini

Dissertations and Theses

The post-secondary educational environment is full of demands—both academically and outside of the direct college setting—and as a result, stress is a prevailing concern for college students. Chronic, high levels of stress have been linked to a number of negative health outcomes, such as anxiety and depression, and academic outcomes, such as lower academic achievement. Using a diverse sample of undergraduate and masters students [n=84; mean (SD) age = 22.89 (5.99) years] from an urban, public college, the current study measured students’ experiences of stress (Perceived Stress Scale) and the adaptive and maladaptive strategies they utilized to cope with stress, …

High Frequency Periodicity In Stock Trades, Maria Joao Arantes E Oliveira

Dissertations and Theses

No abstract provided.

The Fallacy Of The Chinese, Nirvan Govind

Dissertations and Theses

A superpower is a country that dominates the global landscape in 4 major categories. These include military, economic, political and cultural. Superpowers have to ability to project immense power and whether it is countries that are trying to counter the impact of a superpower or gain from their strength, global hegemons are important aspects of contemporary international relations. Today, The United States is the only country that has all of these requirements and therefore, is the most powerful country in the world. However, a number of countries have begun to show potential for equaling or usurping the title of superpower. …

"Assessing The Efficacy Of Integration Strategies For Immigrant Communities: A Case Study Of The United States And France", Andres E. Gallo

Dissertations and Theses

The movement of peoples across borders has often been a prominent issue in the context of international relations, both historically when looking at the mass waves of European immigration throughout the 19th and 20th centuries, and even more so in the current context of our globalized society with its increasingly complex migration patterns. As present-day crises and hardships continue to force individuals to flee their home countries, receiving states must address the various ramifications associated with granting entrance to the new influx of migrants. Regardless of the causal factors that prompt immigrant groups to leave their home countries, they are …

A Study On The Heavy Crude Oil Viscosity Reduction With The Dissolution Of Nitrogen And Carbon Dioxide, Abdurahman Ajumobi

Dissertations and Theses

World's energy challenges would be greatly improved upon if half of the world's heavy oil and extra heavy oil could be made to ow in pipelines. Viscosity reduction of heavy oils is the key to solving this problem. In this study, aside from injecting pure nitrogen and pure carbon dioxide separately into the oil, two different compositions of the mixture of the two gases were also injected. In the first mixture, varied quantities of the two gases were used; 62:5%, 82:2% and 86:4% of the mixture was nitrogen while 37:5%, 17:8% and 13:6% was carbon dioxide at total test pressures …

Intra- And Inter-Seasonal Variability Of Supra-Glacial 1 Streams And Lakes Over The West Greenland Ice Sheet 2 From High-Resolution Satellite Optical Data, Michael Gregory Brown

Dissertations and Theses

The Greenland ice sheet (GrIS) is one of the largest glacial ice masses on Earth, second only to the Antarctic ice sheet. The surface hydrology of the GrIS plays a crucial role on the surface energy and mass balance budgets of the ice sheet as a whole. Surface water, known as supra-glacial water, is seasonally found in the ablation zone and feeds the en-glacial and sub-glacial hydrological environments of the ice sheet. The spatial distribution of surface streams is poorly understood and their temporal variability is (to our knowledge) unknown. One of the reasons for the lack of knowledge on …

The Face Of The Market, Thomas Woodcock

Dissertations and Theses

This thesis reviews the effect on economic openness that can be established by the presence of strong Global Compact local networks. The work identifies three measures of openness and four sets of domestic conditions in which the Global Compact operates, respectively: (1) prevalence of trade, (2) measures of foreign direct investment and foreign portfolio investment and (3) policy indicators of openness, in respect to democracies with (a) strong local networks or (b) weak local networks, as well as autocratic regimes with (c) strong or (d) weak local networks. A comparative study follows, looking at twenty-three years of data across fifty …

Effects Of Acetyl Salicyclic Acid On Drosophila Models Of Cancer-Inflammation, Roma Rajwani

Dissertations and Theses

Chronic inflammation is a fundamental condition underlying many human disease pathologies including diabetes, cancer, and neurodegeneration. Indeed, one of the most commonly-used anti-inflammatory drugs, aspirin, has been shown to be effective in the treatment of many cancers. To understand the mechanistic linkages between inflammation and cancer, we used Drosophila models in which hyperactive immune signaling causes overproliferation of the hematopoietic system leading to the production of inflammatory blood tumors. In mutant animals, hematopoietic cells divide uncontrollably and exhibit pre-mature differentiation giving rise to large sticky cells. Some mutant cells infiltrate and adhere to cells of the fat body. The fat …

The Fallacy Of The Chinese, Nirvan Govind

Dissertations and Theses

A superpower is a country that dominates the global landscape in 4 major categories. These include military, economic, political and cultural. Superpowers have to ability to project immense power and whether it is countries that are trying to counter the impact of a superpower or gain from their strength, global hegemons are important aspects of contemporary international relations. Today, The United States is the only country that has all of these requirements and therefore, is the most powerful country in the world. However, a number of countries have begun to show potential for equaling or usurping the title of superpower. …

The Widespread Skink Mabuya Dorsivittata Reveals Complex Patterns Of Genetic Diversity In South America, Danielle Rivera

Dissertations and Theses

No abstract provided.

"Microfinance As A Determinant Of Domestic Violence In Bangladesh: Who Is At Risk?", Alvin Christian

Dissertations and Theses

This paper examines the impact that microfinance participation has on reported domestic violence rates among women in Bangladesh. While microfinance programs are aimed at reducing poverty, they may have unintended consequence and contribute to domestic violence or Intimate Partner Violence (IPV). Using nationally representative data from the Urban Health Survey (2006), I study the association between microfinance participation and domestic violence among currently married women. The outcome variable is domestic violence, which is coded as a dummy variable, where a women either has experienced domestic violence episodes or she hasn’t. Predictor variables include microfinance participation, community attitudes, liberal views, labor …

An Analysis Of The South China Sea Dispute: Focusing On The Assessment Of The Impact Of Possible Solutions On The Economies Of The Region., Sacha Amry

Dissertations and Theses

The purpose of this thesis is to examine the South China Sea dispute and to analyze why the dispute has yet to escalate, as well as the strategic importance of the South China Sea dispute in relation to international trade. This thesis will also study possible solutions and effects on both the region and the international community. I argue here that while the ASEAN countries have continued to make valuable efforts at finding multilateral solutions to the dispute, China has resisted these efforts by demanding its own bilateral negotiation process. The Spratly Islands and the Paracel Islands, both located in …

Factors Affecting Persistence Rates Among College Freshmen, Darlene Rozon

Dissertations and Theses

This study explored new factors that may be associated with college success, including parents’ education level, annual household income, hours spent outside the classroom, and college premium. The current study provides evidence from an urban public college of predominately low socio-economic status students. Participants (N=251) were students enrolled in fall semester 2009 in an introductory psychology course. Participants were asked to fill out a questionnaire about their college experience, demographics and family background. Survival analysis and binary logistic regression was used to evaluate the effect of each factor on college retention Parents’ education level and student’s knowledge of the economic …

The Value Of Culture In Peacebuilding -- Examples From Democratic Republic Of Congo, Yemen And Nepal, Dorota Piotrowska

Dissertations and Theses

Top-down coercive type of liberal peace building has characterized the interventions by international community in many post-conflict societies after the Second World War. Recent studies suggest that in order to build a more lasting peace a bottom-up, non-coercive approach is needed to balance the former and deal with the immediate needs of local communities. In approaching the question of how peace and reconstruction efforts can be made more sustainable, this thesis evaluates whether strategic arts-based programs with local content have the potential to build stronger communities by establishing peaceful resorts to settle daily disputes by participants. It further examines three …

Lessons From The Arab Spring: Pathways To Democracy After The Revolution In Tunisia, Egpypt And Libya, Manal Abd-El-Hafez

Dissertations and Theses

No abstract provided.

In The Center Of The Periphery: Yasuo Kuniyoshi’S Art, Life, And The Japanese Artists' Community During The Interwar Period, Takayuki Yamada

Dissertations and Theses

No abstract provided.

The Paradoxes Of Female Authorship In Samuel Richardson‘S Pamela, Or Virtue Rewarded, Jane Austen's Emma And Henry James' The Portrait Of A Lady, Ewa Barnes

Dissertations and Theses

No abstract provided.

Effects Of Temperature Stress On Coral Fluorescence And Reflectance, Andrea Gomez

Dissertations and Theses

Around the world, climate change, land-based pollution and fishing impacts are recognized as principal threats to coral reef ecosystems. Sea surface temperatures, in particular, are expected to change dramatically over the next decades and result in high coral mortality in some regions. Through controlled experiments, I examined changes in coral fluorescence and reflectance in response to water temperature alterations to assess the potential of employing these signatures as a diagnostic tool to measure coral health. At the NOAA Coral Culture and Collaborative Research Facility, I conducted controlled laboratory-based heat stress experiments on three Caribbean species of coral: Acropora cervicornis, Orbicella …

Performance Of Self-Excited Energy Harvesters With Tip Bodies Of Non-Circular Cross Section Shapes, Joan Manuel Gomez

Dissertations and Theses

An experimental study on the performance of self-excited energy harvesters with non-circular tip body shapes has been performed. The two tip body shapes analyzed correspond to a half cylinder and a square cross section. Experiments are carried out in the wind tunnel to record the voltage output of the harvesters at different free stream velocities. The presence of the aeroelastic galloping instability was detected by the behavior of the transversal tip displacement of the harvester as well as the coupling of the motion and shedding frequency from the bluff body. The effect of tip mass, free stream turbulence, tip body …

World Bank, Agriculture And Policy: A Case Study In Ghana And Ethiopia, Steven Margel

Dissertations and Theses

This thesis tests the effectiveness of the World Bank’s agricultural-aid policy by examining case studies in Ghana and Ethiopia in the period of 2000-2010. Each study examines the policy context, project/program success, overall human development results, and threats to sustainability, of agricultural aid. The primary hypothesis of the paper is that participatory processes and inclusive institutions will prove to be decisive factors. Each case is tested against this political view of aid in addition to three additional images (Destructive, Ineffective, Effective Technical), in order to ensure a comprehensive review.

The Ghana case showed a lack of participation in forming the …

Sing Me A Song Of Sorrow: Analzying The Internal Dynamics Of Howl And Its Place As A Modern Epic, Anthony Hosey

Dissertations and Theses

No abstract provided.

"Model Complexity And Variable Selection In Maxent Niche Models: Analyses For Rodents In Madagascar", Peter Galante

Dissertations and Theses

Ecological niche models (ENMs) characterize the relationship between localities where a species is known to occur and the abiotic characteristics of these regions. While widely used, ENMs remain subject to several outstanding issues, including those related to model complexity and violation of modeling assumptions (e.g., representative sampling). Critical in resolving these issues is a better understanding of the effectiveness of model selection techniques. Here, I compare two strategies for optimizing ENMs: an information-criterion approach (AICc) and a sequential approach that assesses model performance on withheld data. I do so for a single species using two datasets, one with all available …

Chemotaxis Of Central Nervous System-Derived Tumor Cells Within Controlled Microenvironments, Jennifer Rico Varela

Dissertations and Theses

Medulloblastoma (MB) is a malignant pediatric brain tumor known for its aggressive metastatic potential. Despite the well-documented migration of MB cells to other parts of the brain and spinal column, MB chemotaxis is poorly understood. Herein, we examined the in vitro migratory and cellular responses of MB-derived cells to external signaling of Epidermal Growth Factor (EGF), hepatocyte growth factor (HGF), platelet-derived growth factor (PDGF-BB), and the stromal cell-derived factors 1-alpha (SDF-1). Experiments utilized transwell assays and immunocytochemistry to identify receptor activation in MB migration, and used a microfluidic platform to examine directionality, trajectory, and gradient- dependence of motile cells. Data …

“Angles Of Approaching Gender Equality: Top-Down Vs. Bottom-Up”, Manali Basu

Dissertations and Theses

The international community has attempted to integrate and implement norms into their domestic structure for many decades. They have incorporated the norm of gender equality through many different measures, however failed to identify a successful approach to implementing this type of norm effectively. This paper will explore how these international norms are spread and analyze two separate approaches to integrating gender equality: top-down and bottom-up. It will assess these approaches through a case-study analysis of India and Ghana. This will provide an in-depth explanation of each approach and it will analyze how they have, respectively, impacted the country’s education and …