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Articles 241 - 270 of 280
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"Model Complexity And Variable Selection In Maxent Niche Models: Analyses For Rodents In Madagascar", Peter Galante
"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 …
Development And Maintenance Of Thymic Epithelial Microenvironment, Varan J. Singh
Development And Maintenance Of Thymic Epithelial Microenvironment, Varan J. Singh
Dissertations and Theses
Thymus is a primary lymphoid organ responsible for proper development and selection Of T-‐cells. The thymic microenvironment, however, undergoes age related involution, Resulting in a reduction of the repertoire of T-‐cells that are produced, and a decreased Capacity to respond to new antigen. Even though significant thymic epithelial turnover occurs, it is unclear if postnatal thymic progenitors/stem cell are responsible for the maintenance of the TEC microenvironment. Here we use the K5rtTA:TetO-‐H2BGFP transgenic model to identify a slow cycling potential stem cells/progenitor population in the postnatal thymus. These cells were isolated, expanded in culture, and successfully differentiated into adipocytes, chondrocytes …
The Fallacy Of The Chinese, Nirvan Govind
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. …
Everything Nobody Knew, Annarose Bottos
Everything Nobody Knew, Annarose Bottos
Dissertations and Theses
No abstract provided.
The Will To Change: The Role Of Self-Consciousness In The Literature Of Metamorphosis, Michael Giovanniello
The Will To Change: The Role Of Self-Consciousness In The Literature Of Metamorphosis, Michael Giovanniello
Dissertations and Theses
No abstract provided.
Degradation Of Carbon Tetrachloride Using Hydrophobic Green Rust, Sheena Bowman
Degradation Of Carbon Tetrachloride Using Hydrophobic Green Rust, Sheena Bowman
Dissertations and Theses
Hydrophobic green rusts (GR) were produced using aerial oxidation of solutions containing bis (2-ethylhexyl) sulfosuccinate (BIS) and sodium N-lauroylsarcosinate (SNLS), iron (II) sulfate and sodium hydroxide. The synthesis was conduced at constant pH 8.0±0.1 for the duration of 1-3 hrs. Partition tests showed GRBIS and GRSNLS suspended in the organic phase (tetrachloroethylene). Through X-ray diffraction analysis both GRs exhibit similar patterns to Green Rust II, an inorganic form of GR. The kinetics of GR reductive dechlorination of carbon tetrachloride (CT) was investigated. CT at high concentrations was degraded at high percentages for GRBIS-3, 88.5% and GRSNLS-5, 97.6%. Their reactions were …
"Lithuanian Suite Op. 1", John Paul Bimbiras
"Lithuanian Suite Op. 1", John Paul Bimbiras
Dissertations and Theses
No abstract provided.
"Alienation In The Egyptian Novel Under Nasser: A Study Of Naguib Mahfouz’S The Beggar And Son’Allah Ibrahim’S That Smell.", Zeina Sabry
Dissertations and Theses
No abstract provided.
The Widespread Skink Mabuya Dorsivittata Reveals Complex Patterns Of Genetic Diversity In South America, Danielle Rivera
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
"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 …
Political Choice And Economic Crisis In Brazil: A Case Of Mismanagement Of Public Money, Evellyn Brasil Monteiro
Political Choice And Economic Crisis In Brazil: A Case Of Mismanagement Of Public Money, Evellyn Brasil Monteiro
Dissertations and Theses
A few years ago, Brazil was the country where everybody would like to invest. Because it was one of the members of the BRIC, group of emergent countries with fast-growing economies including also Russia, India and China that gave the investors warranties that those investments would be successful. The current situation is very different from the one pictured not too long ago. High interest rates, high inflation, undervalued currency, and international political scandals describe the very serious economic crisis the country has been facing recently, making the economic growth forecast decrease. In 2013, the variation of Gross Domestic Product (GDP) …
Traditional Governance Influence On Democracy In Africa, Kofi Afful
Traditional Governance Influence On Democracy In Africa, Kofi Afful
Dissertations and Theses
The spread of democracy in the global community has been rampant since the end of World War II. On the continent of Africa, as a collective of countries are recent newcomers as sovereign states to this governmental practice. The purpose of this thesis is to explore the political development of African countries since the end of colonialism and the systems of government that countries are practicing since independence. Alongside the current system of government, there is a need to analysis the connections between pre-colonial institutions whether or not if they are complimentary or antithetical to democracy in African countries. Lastly, …
Gendered Political Economy: The Economic And Social Factors That Affect Women’S Political Participation, Ginger Albertson
Gendered Political Economy: The Economic And Social Factors That Affect Women’S Political Participation, Ginger Albertson
Dissertations and Theses
There is a prevailing attitude that increasing women’s economic participation leads to their empowerment, or increases their agency in influencing decision making. This is despite large data evidence to the contrary and acknowledgement by financial institutions that a link cannot be established. This thesis examines what impact labor participation has on women’s influence in their community and their political participation, how non-income related skills like advocacy increases women’s self-confidence and agency, and the role non-formal training and networks play in increasing women’s participation in decision making and political participation. I find that when conducting a data comparison there does not …
Chemotaxis Of Central Nervous System-Derived Tumor Cells Within Controlled Microenvironments, Jennifer Rico Varela
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 …
Development Of Super Hydrophobic Surfaces Using Silica Nanoparticles, Muhammad Salman Saleem
Development Of Super Hydrophobic Surfaces Using Silica Nanoparticles, Muhammad Salman Saleem
Dissertations and Theses
The development of surfaces that have high water contact angles and hysteresis has always been of great importance in industrial applications. Various methods and techniques have been introduced to fabricate surfaces at nano-scale to support super hydrophobicity. Some of these techniques are expensive, some are very complex, most can be used for selective materials and substrate and some form surfaces with very poor wear resistance. This document represents a systematic study on fabrication of super hydrophobic surfaces on glass substrate (SiO2) using the functionalized silica (SiO2) nano particles. SU8, Polydimethylsiloxane (PDMS) and Methyphenyl Resin SR355 polymer are being used as …
An Experimental Study Of Subcooled Flow Boiling At Elevated Pressure In An Annular Flow Channel, Pervej Rahman
An Experimental Study Of Subcooled Flow Boiling At Elevated Pressure In An Annular Flow Channel, Pervej Rahman
Dissertations and Theses
An experimental setup was developed to study the region of subcooled flow boiling. Multiple studies were carried out to investigate the effects of liquid velocity, pressure, and temperature on the boiling heat transfer of subcooled fluid flowing through a heated annular channel. Water was used as the working fluid and principle of Ohmic heating was used to raise water temperature. The system pressure, heat flux, & mass flux ranged from 101 to 912 kPa, 19 to 155 kW/m2, and 83 to 332 kg/m2-s, respectively. This report contains boiling curves, heat transfer coefficients of various studies and a description of the …
United States Multilateral Policy In Dealing With North Korea, Alex Guarino
United States Multilateral Policy In Dealing With North Korea, Alex Guarino
Dissertations and Theses
No abstract provided.
Factors Which Prolong Civil Conflict In Africa: The Case Of Angola, Liberia And Sierra Leone, Ntesang Lorraine Molemele
Factors Which Prolong Civil Conflict In Africa: The Case Of Angola, Liberia And Sierra Leone, Ntesang Lorraine Molemele
Dissertations and Theses
It has been a long journey for this thesis accomplishment and now finally it is accomplished. First and foremost I thank God for my mother, Seskhutshwe, who has always wanted her children to accomplish through education. It would not have been possible of course without my dad, Judge and my little sister Ikey. My 9 year old daughter, I also thank her for always making sure she did not disturb me whenever I had to concentrate on this project. Above all, I wish to express my gratitude to my exceedingly patient Professor and supervisor, Jacqueline Braveboy. I have probably been …
World Bank, Agriculture And Policy: A Case Study In Ghana And Ethiopia, Steven Margel
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 …
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 …
Extreme Levels Of Poverty And Inequality May Lead To Equally High Levels Of Social Conflict And Crime, Rukelt Dalberis,
Extreme Levels Of Poverty And Inequality May Lead To Equally High Levels Of Social Conflict And Crime, Rukelt Dalberis,
Dissertations and Theses
Poverty and economic inequality remain a vexing concern in Latin America. The specter of crime continuously looms, creating a constant state of social discomfort in the region. Latin America has established an unparalleled zone of democracy. The region has also become an economic force.
The prevailing notion regarding the relationship between poverty and inequality with crime and conflict outbreaks is that violence tends to occur in regions where poverty is endemic. Inequality, as it is understood, breeds contempt. In this thesis, I test the hypothesis that extreme levels of poverty and inequality are likely to result in equally high levels …
Factors Affecting Persistence Rates Among College Freshmen, Darlene Rozon
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 Impact Of Forest Successional Status On Community Structure Of Neotropical Cerambycid Beetles, Lin Li
The Impact Of Forest Successional Status On Community Structure Of Neotropical Cerambycid Beetles, Lin Li
Dissertations and Theses
Due to anthropogenic activities, tropical rain forests face many challenges in sustaining biodiversity and maintaining global climates. This project examines how forest successional status affects community composition of saproxylic cerambycids, which, as early colonists of moribund trees, have an important role in nutrient cycling. In the lowland rain forest of Costa Rica, thirty-nine trees in five plant families (Fabaceae, Lecythidaceae, Malvaceae, Moraceae, and Sapotaceae) were sampled in a mosaic of old growth and secondary forest. They yielded 3545 cerambycid individuals in 49 species. Species richness was almost identical in old growth and secondary forest; but abundance was higher in old-growth. …
“Angles Of Approaching Gender Equality: Top-Down Vs. Bottom-Up”, Manali Basu
“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 …
Finding Willie, Saving Charlie, Andrew Geller
Finding Willie, Saving Charlie, Andrew Geller
Dissertations and Theses
No abstract provided.
Refinement Of Feedforward Projections, Neuronal Density, And Characterization Of Synapsesin Layer 4 Of Ferret Primary Visual Cortex, Violeta Contreras Ramirez
Refinement Of Feedforward Projections, Neuronal Density, And Characterization Of Synapsesin Layer 4 Of Ferret Primary Visual Cortex, Violeta Contreras Ramirez
Dissertations and Theses
No abstract provided.
Factors Affecting Developing Planning In Africa: The Need For Local Input, Ismael Sow
Factors Affecting Developing Planning In Africa: The Need For Local Input, Ismael Sow
Dissertations and Theses
Africa has become synonymous with poverty, diseases, and despair. The continent is home to the highest number of extremely poor people in the world. Throughout the world, especially in the last few decades, many countries in the so-called South have succeeded in lifting their people out of poverty. The continent, with the exception of a few African countries, has failed to design and implement sound economic plans to bring prosperity to a billion Africans. This thesis proposes that for African countries to develop, ways should be found to include indigenous input into development planning. This assumption is based on both …
The Long Road: Upstate Republicans And Political Reform In New York State, 1906-1927, Todd Leskanic
The Long Road: Upstate Republicans And Political Reform In New York State, 1906-1927, Todd Leskanic
Dissertations and Theses
No abstract provided.
The Value Of Culture In Peacebuilding -- Examples From Democratic Republic Of Congo, Yemen And Nepal, Dorota Piotrowska
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
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.