Browsing Theses and Dissertations, Electronic (ETDs) by Title
Now showing items 6193-6212 of 6497
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U.S. Counterinsurgency Malpractice?
(Johns Hopkins University, 2014-09-22)The U.S. miscalculated the balance between soft and hard power for employment in counterinsurgency operations in Afghanistan. -
U.S. Energy Policy: Impacts of an Increased Federal Revenue Neutral Gasoline Tax
(Johns Hopkins University, 2008-05-27)The future holds significant challenges for the United States with regard to clean, inexpensive, and reliable energy resources. Of these energy challenges, issues relating to transportation fuels appear to be some of ... -
U.S. EXCEPTIONALIST ATTITUDE TOWARDS THE INTERNATIONAL COMMUNITY
(Johns Hopkins UniversityUSA, 2021-05-20)The United States’ foreign policy and attitude towards the rest of the international community has grown increasingly aggressive and uncooperative with others. Often acting through a sense of U.S. exceptionalism, the United ... -
THE U.S. GOVERNMENT’S STRATEGIC COMMUNICATION CHALLENGES WITH THE WAR ON TERROR
(Johns Hopkins University, 2008-06-04)An organization’s reputation, productivity, and even its existence often depend on the way the media and the public perceive its goals and policies. As a massive organization, the United States government relies on the ... -
U.S. Labor Dynamics in the 21st Century
(Johns Hopkins UniversityUSA, 2016-10-04)This dissertation is composed of three chapters. In the first chapter, I investigate the trend reversal in the labor supply of single childless women that occurred at the turn of the 21st century and its continued decline ... -
U.S. Nuclear Triad: Is It Sustaining the Cold War or 21st Century Framework?
(Johns Hopkins University, 2014-05-19)On September 28, 1991, President George H. W. Bush directed all nuclear bomber aircraft to “stand down” from day-to-day alert and download their nuclear weapons to return back to the base’s weapons storage areas. Bush ... -
U.S. POLITICAL AND WARFARE STRATEGY EFFECTS ON DEMOCRATIZATION EFFORTS
(Johns Hopkins UniversityUSA, 2019-05-24)The intent of this thesis is to analyze failures in the United States (U.S.) military instrument of national power during interventions and occupations. Insurgencies, terror organizations, and emerging near-peer geopolitical ... -
U.S. Seasonal Worker Policies: What changes can the U.S. immigration authorities make to the H-2B visa program to more effectively address employers’ needs?
(Johns Hopkins UniversityUSA, 2021-09-07)Although international labor mobility represents one of the most effective ways of addressing worker scarcity in high-income countries, growing anti-immigration attitudes have made it difficult to advocate in favor of ... -
U.S. Security Partnerships in Latin America: How a Lack of Sustainability is Preventing Stability
(Johns Hopkins University, 2014-12-12)This thesis is meant to examine the influence of U.S. security partnerships on Latin American nations. With four major partnerships created in the past fifteen years, it is important to review the successes and failures ... -
U.S. Special Operations and Military Crime: The Post-9/11 Wartime Crimes of U.S. Special Operations Forces Compared to the Conventional U.S. Military
In this study, both the proximate causes and underlying theory of the military crimes of U.S. Special Operations Forces (SOF) are found to differ from those seen within the conventional U.S. military. Conventional military ... -
UBE3A and Angelman syndrome: a substrate perspective
(Johns Hopkins UniversityUSA, 2017-05-19)Angelman syndrome (AS) is a human developmental disorder that presents with ataxia, seizures, and major cognitive impairments [1]. Through human genetic studies, it was found that the loss of function of a single ubiquitin ... -
ULTRA-SENSITIVITY OF CELL ADHESION IN A MECHANICALLY HETEROGENOUS ENVIRONMENT
(Johns Hopkins UniversityUSA, 2016-08-18)Cell adhesion regulates critical cellular functions in adherent cells. Yet, the fundamental mechanism during the early events in cell adhesion remains unclear. At the most elementary level, cell processes its environment ... -
ULTRAFAST EXCITED-STATE STRUCTURAL DYNAMICS AND CHARGE TRANSFER IN PHOTORESPONSIVE CONJUGATED MOLECULAR MATERIALS
(Johns Hopkins UniversityUSA, 2016-09-06)As many fundamental light-induced photochemical processes, e.g. isomerization, intramolecular electron or hydrogen transfer, happen on timescales ranging from femtoseconds to picoseconds, further understanding of these ... -
Ultrafast spectroscopic interrogation of structural dynamics and disorder of excited states in conjugated organic polymers
(Johns Hopkins UniversityUSA, 2016-10-10)The spectroscopy and dynamics of conjugated polymers have been widely studied in recent years, but there is limited empirical data that directly probes the role of structural dynamics and changes in conjugation length that ... -
ULTRALOW-FREQUENCY MUTATIONAL VARIATIONS REFLECT SPATIAL HETEROGENEITY OF GLIOBLASTOMAS
(Johns Hopkins UniversityUSA, 2021-08-13)Glioblastoma multiforme (GBM) is the most common and aggressive type of brain tumor in adults, hallmarked by inter and intratumoral heterogeneity. Current treatment incorporates several biomarkers at the genomic and ... -
Ultrasensitive Analysis of Cancer-Specific Epigenetic Biomarkers for Early-Stage Cancer Diagnosis
(Johns Hopkins UniversityUSA, 2020-05-07)Cancer ranks as the leading cause of death in every country worldwide. With the development of molecular technologies, DNA methylation has been demonstrated to play important roles in cancer development. To lower the burden ... -
Ultrasound Imaging with Flexible Array Transducer
(Johns Hopkins UniversityUSA, 2021-05-10)Ultrasound imaging has been developed for image-guided radiotherapy for tumor tracking, and the flexible array transducer is a promising tool for this task. It can reduce the user dependence and anatomical changes caused ... -
Umm el-Marra and the Western Expansion of the Mittani Empire in Northwestern Syria
(Johns Hopkins University, 2014-03-21)The Bronze Age occupation of Umm el-Marra, a medium-sized regional center in western Syria, lasted, with varying degrees of intensity, for more than a millennium. During this time, the communities who inhabited the site ... -
Uncertainty and the Lending Channel of Monetary Policy
(Johns Hopkins UniversityUSA, 2014-07-18)The dramatic increase in aggregate uncertainty during the Great Recession sparked an interest in the role of uncertainty on the effectiveness of financial sector intervention policies. In particular, banks have been a major ... -
UNCERTAINTY QUANTIFICATION FROM SMALL DATA: A MULTIMODEL APPROACH
(Johns Hopkins UniversityUSA, 2018-08-13)As a central area of computational science and engineering (CSE), uncertainty quantification (UQ) is playing an increasingly important role in computationally evaluating the performance of complex mathematical, physical ...