Browsing Theses and Dissertations, Electronic (ETDs) by Title
Now showing items 3117-3136 of 6070
-
Lab-Based Filtration System Improving Recovery and Reducing Time to Detection for Diagnosis of Sepsis
(Johns Hopkins UniversityUSA, 2017-12-12)Rapid and accurate detection of a blood stream infection is critical for the proper management of patients displaying symptoms of sepsis. Current blood culture systems are both time consuming and may yield low recovery in ... -
Label Cleaning Multiple Instance Learning: Refining Coarse Annotations on Single Whole-slide Imaging
(Johns Hopkins UniversityUSA, 2021-08-11)Annotating cancerous regions in whole-slide images (WSIs) plays a critical role in both clinical diagnosis, biomedical research, and machine learning algorithms development. However, exhaustive and accurate annotations are ... -
Label Free CEST MRI Detection of Hydrogen Peroxide and its Applications in Monitoring Oxygen Delivery for Tissue Engineering
(Johns Hopkins UniversityUSA, 2017-05-02)One of most formidable challenges in stem cell therapy is the initial hypoxia due to the lack of blood supply. Among the numerous oxygen-supplying systems that have been developed, hydrogen peroxide is suggested to be a ... -
LABELING OF TISSUE COMPOSITE WITH FLUORINE NANOEMULSION FOR MAGNETIC RESONANCE IMAGING
(Johns Hopkins UniversityUSA, 2018-05-10)The regenerative medicine approach of using stem cells loaded on hydrogel scaffolds has gained wide attention in recent years. Tissue composites made from stem cells embedded in hydrogels provide a minimally invasive ... -
Laboratory Experiments of Wave Attenuation by Mud
(Johns Hopkins UniversityUSA, 2014-09-26)Muddy deposits make up a large region of the world's coastal lands such as the Gulf of Mexico, the Louisiana coastline, and the Persian Gulf. These regions serve as valuable resources for the world's population for commerce, ... -
Lactoferrin CpG Island Hypermethylation and Decoupling of mRNA and Protein Expression in the Early Stages of Prostate Carcinogenesis: Exploring a Role for Lactoferrin in Tumor Suppression and Chemoprevention
(Johns Hopkins UniversityUSA, 2018-10-10)Inflammation, common in the adult prostate, is hypothesized to play a role in prostate cancer initiation and progression. The hypothesized pathway from benign to malignant in the prostate begins with transition from benign ... -
LAKE CHAD: RECENT DRY SEASON AREA CHANGES, NEAR TERM DRY SEASON AREA PROJECTIONS, AND DRY SEASON AREA PROJECTIONS THROUGH THE YEAR 2100
(Johns Hopkins UniversityUSA, 2018-12-18)Lake Chad, in the Sahel region of Africa is shallow, freshwater, and the terminal lake of an enormous (2.5 million km2) endorheic basin. The lake has exhibited a wide range of area over the centuries. More recently, some ... -
Laminar-specific innervation by layer II/III neurons in the somatosensory cortex
(Johns Hopkins UniversityUSA, 2021-10-20)Cognition, learning, and memory require complex circuit formation within the cerebral cortex. The cerebral cortex is a complex structure divided into functional areas, each of which is organized into discrete neuronal ... -
THE LANGUAGE OF POLITICAL PERSUASION: THREE CASE STUDIES EXPLORING “RHETORIC OF COERCION”
(Johns Hopkins University, 2014-05-27)Does specific rhetoric from leaders have a direct impact on influencing others? In their 2007 essay “Twisting Tongues and Twisting Arms”, Ronald R. Krebs and Patrick Thaddeus Jackson introduce a matrix which classifies ... -
Lapdogs, Attack Dogs, or Watchdogs? News Media's Role in State Government and Politics
(Johns Hopkins UniversityUSA, 2020-12-10)What is the news media’s role in influencing political engagement, participation, and polarization at the state level? This thesis reviews existing literature on the history of journalism in the United States, the relationship ... -
Large Eddy Simulation and Analysis of Kinetic Energy Entrainment in Large Wind Farms
(Johns Hopkins UniversityUSA, 2015-06-23)Large eddy simulation (LES) is used to investigate the behavior of turbine wakes in very large wind farms for which the wakes merge and the flow becomes fully developed. To do this, horizontally-periodic boundary conditions ... -
Large Eddy Simulations and Theoretical Analysis of Wind Turbine Aerodynamics Using an Actuator Line Model
(Johns Hopkins UniversityUSA, 2017-07-12)The actuator line model (ALM) is a widely used tool to represent the wind turbine blades when performing numerical simulations of flow over wind turbines and wind farms. The ALM is used to represent wind turbine blades ... -
Large Magellanic Cloud Extreme Star Formation in a Low-Metallicity Environment
(Johns Hopkins UniversityUSA, 2018-04-12)Young stellar objects (YSOs) with high masses (> 8 M_sun) interact with the interstellar medium (ISM) via accretion and feedback processes on both local and galaxy-wide scales. Massive stars are rare and evolve very quickly, ... -
Large-eddy simulations, wake models, and control: Power grid frequency support with wind farms
(Johns Hopkins UniversityUSA, 2018-09-28)Improved integration of wind farms into frequency regulation services is vital for increasing renewable energy production while maintaining power system stability. In particular, wind farms of the future will need to be ... -
Large-Scale Nonparametric and Semiparametric Inference for Large, Complex, and Noisy Datasets
(Johns Hopkins UniversityUSA, 2015-07-20)Massive Data bring new opportunities and challenges to data scientists and statisticians. On one hand, Massive Data hold great promises for discovering subtle population patterns and heterogeneities that are not possible ... -
Large-Scale Paraphrasing for Text-to-Text Generation
(Johns Hopkins UniversityUSA, 2018-06-14)We present our work on the extraction and estimation of syntactic paraphrases using commodity text data and automated linguistic annotation. Our initial approach leverages bilingual parallel data and builds on extraction ... -
Las Batuecas, Las Hurdes and the Spanish Crypt
(Johns Hopkins University, 2015-03-17)My dissertation analyzes the Las Batuecas/Las Hurdes region’s unique function in Spanish culture from the turn of the 17th century to the present day. Due to its geographical isolation, Las Batuecas/Las Hurdes was once ... -
Last Acts: The Arts of Dying, the Good Deathbed and the Early Modern Stage
(Johns Hopkins UniversityUSA, 2013-10-10)“Last Acts” examines the intersection between early modern understandings of proper deathbed behavior and dramatic representations of death. Dying is understood in homiletic texts as a set of postures and actions that can ... -
Lasting Legacies: Looking at the Long-Term Impact Presidential Policies have on the National Economy
(Johns Hopkins UniversityUSA, 2021-05-26)It is clear that presidents, in their unique position as sole leaders of an entire branch of the federal government, have vast powers at their disposal to utilize during their time in office. It is also clear that the ... -
LATENT CLASS AND TRANSITION ANALYSIS OF ELEMENTARY SCIENCE STUDENTS’ EXPECTANCY-VALUE-COST MOTIVATION
(Johns Hopkins UniversityUSA, 2019-07-22)The three studies described in this dissertation explored the expectancy-value-cost motivation for science of 1,706 fourth and fifth grade students. Data was collected as part of the STEM Achievement in Baltimore Elementary ...