Digital Commons Network^™

A Systems Approach To Ecological Economic Models Developed Progressively In Three Interwoven Articles, Takuro Uehara

Dissertations and Theses

My dissertation develops and analyzes ecological economic models to study the complex dynamics of an ecological economic system (EES) and investigate various conditions and measures which can sustain a developing economy over the long term in view of resilience and sustainability. Because of the intrinsic complexity of the system, I take a systems approach, using economics as the foundation for the basic structure of an ecological economic model, and system dynamics as the method to build and analyze such a complex ecological economic model. Throughout my dissertation, the model developed by Brander and Taylor (1998) is adopted as a baseline …

Climate Change Effects And Water Vulnerability In The Molalla Pudding River Basin, Oregon, Usa, Susan Amelia Wherry

Dissertations and Theses

Water management plans are typically developed using historical data records and historical return periods for extreme events, such as floods or droughts. Since these analyses of return periods typically assume a certain degree of stationarity (constant mean, standard deviation, distribution) in hydrologic variables, the potential future impacts of climate change are excluded. In developing water management plans, predicted changes to climate variables should be considered to evaluate the degree of non-stationarity that may exist in the future. In this way, regions most sensitive to climate change can be identified and managed appropriately. This study performed such a task by using …

Increasing Social Work Students' Political Interest And Efficacy: The Experience And Impact Of A Social Welfare Policy Course From The Students' Perspective, Christie Dianne Bernklau Halvor

Dissertations and Theses

Students of accredited social work programs are expected to demonstrate ten core competencies, including the ability to "engage in policy practice to advance social and economic well-being and to deliver effective social work services" (Council on Social Work Education, 2008). Despite this expectation, almost half of licensed social workers surveyed disagreed with the notion that they were adequately prepared for political engagement by their social work education (Ritter, 2007). Because social welfare policy courses are the primary curricular means for preparing generalist social workers for political advocacy, this study explores how undergraduate students respond to social welfare policy instructors' efforts …

Fluorescence Detection Of Biological Thiols, Yixing Guo

Dissertations and Theses

Glutathione (GSH) is an important biological thiol, it performs significant biological functions such as serving an antioxidant which protect cells from oxidative stress by trapping free radicals which damage DNA and RNA. It is known that abnormal plasma levels of GSH have been linked to various human diseases. Therefore, the rapid, sensitive and highly selective detection of GSH is of great importance for investigating its functions in diseases diagnosis. Interestingly, we found in cetyl trimethylammonium bromide (CTAB) medium, the resorufin-based probe shows an extremely fast, highly selective response to GSH. The result indicates that this dye can be employed to …

Engaging Community Food Systems Through Learning Garden Programs: Oregon Food Bank's Seed To Supper Program, Denissia Elizabeth Withers

Dissertations and Theses

The purpose of this study was to discover whether learning garden programs increase access to locally grown foods and successfully empower and include food insecure populations. This study examined the Oregon Food Bank's Seed to Supper program which situates garden-based learning in food insecure communities. Through a mixed-methods community-based research process, this study found that community building, learner empowerment and sustainability leadership in place-based learning garden programs increased access to locally grown foods for food insecure populations. When food insecure populations participated in these learning garden programs they often engaged in practices described in the literature as the "web of …

Social Job Characteristics And Older Workers: Effects On Job Satisfaction And Job Tension, Jennifer Rae Rineer

Dissertations and Theses

The workforce in most industrialized countries is aging and becoming more age diverse, but few studies have examined the implications of age differences in the design of jobs. This study examined the role of age as a moderator in the relationship between job characteristics and two individual outcomes, job satisfaction and job tension. Specifically, the study focused on the relationship between social characteristics of the job (given social support, [received] social support, interdependence, interaction outside the organization, and feedback from others) and job tension and job satisfaction among Portland Water Bureau employees. Based in Socioemotional Selectivity (SES) theory (Carstensen, 1991), …

Understanding The Experience Of Air Force Single Parents: A Phenomenological Study, Samantha Everhart Blanchard

Dissertations and Theses

Today, raising children under the best of circumstances represents a daunting endeavor as any parent and a growing body of research confirm. When a single parent is on active duty in one of the U.S. armed forces, there are additional challenges involved that may not exist among civilian counterparts. The phenomenon of single parents on active duty with its unique difficulties associated both with single parenting and with military service was the basis of this study. The purpose of the research was twofold: to describe the experiences of Air Force single parents as related to social support and work-life theory …

Toward A Law Of "Lovely Parting Gifts": Conditioning Forum Non Conveniens Dismissals, Thomas O. Main

Scholarly Works

No abstract provided.

Carl Schmitt's Radical Democracy: Schmitt, Hobbes And The Return To Political Identity, Ndifreke Ette

LSU Master's Theses

Scholarly treatments of the controversial German jurist Carl tend to be bipolar: His writings are either scrutinized for totalitarian leanings or his flirtations with Nazism excused as unfortunately opportunistic. One of the more fruitful points to begin an exploration of Schmitt’s thought is in his interpretation of Thomas Hobbes. Schmitt criticized Hobbes both for ignoring the historical backdrop to the Leviathan myth, and also for prefiguring liberalism with his distinction between conscience and obedience. In recruiting Hobbes, this paper suggests that though Schmitt’s concern about the technologization of politics through liberalism was paramount, it was in support of a radical …

Spatial Assessment And Analysis Of Pollution Sources And Water Quality In The Bogue Falaya River And Abita River Watersheds, St. Tammany Parish, La, Chelsea Core

LSU Master's Theses

Watershed planning is an important ongoing process for enabling communities to repair polluted waterways and ensuring the health and vitality of waterways for future generations. This study defines a process to spatially track pollution sources entering into our waterways. An essential tool used in the watershed planning process is geographic information systems. It is important to gather spatial information to illustrate where all potential pollution sources are located within each watershed. The data for this study were assembled into a database and mapped to locate pollution sources including: commercial/small business wastewater treatment plants; subdivisions without community wastewater treatment; and individual …

China's 20th Century Sophist: Analysis Of Hu Shi's Ethics, Logic, And Pragmatism, Rya Butterfield

LSU Doctoral Dissertations

This is a study of the theory of critical Sophistic logic that underwrote Hu Shi’s involvement in China’s 20th century reform period known as the Chinese Renaissance. Hu Shi was a radical liberal reformer who played a leading role in the New Culture Movement. He pursued a two-pronged project for cultural reform. One side of the reform was focused on developing a critical pragmatic logical theory. This side was aimed at the intellectual class and appealed to the heritage of the Confucian literati. The other side of the reform was focused on lifting the people’s vernacular language from vulgarity to …

Building The Big Chief: Charles Garnier And The Paris Of His Time, Paige Bowers

LSU Master's Theses

The Paris Opera House, or Palais Garnier, is known as the backdrop for the Broadway musical Phantom of the Opera, which has been seen by more than 100 million people worldwide since its debut a quarter-century ago. Outside of France, more people know about the fictional phantom Erik and his white mask than they do Charles Garnier, the building’s real life architect. Based on substantial archival research at Bibliothèque Nationale de France, the Bibliothèque-Musée de l’Opéra and the École Nationale Supérieure des Beaux-Arts, this study presents a rare biographical portrait of Garnier, whose rags-to-riches tale was emblematic of a nineteenth-century …

Focus Question Effect On Dynamic Thinking In A Concept Map, Blake John Orgeron

LSU Master's Theses

A concept map is an educational tool designed to help identify, represent, and categorize relationships between different ideas relating to an overall concept. Relationships or transitions between the ideas are created by students and can either be static or dynamic. Static transitions help to describe, define, and organize knowledge for a given domain. Dynamic transitions show how a change in quantity, quality, or state in one concept causes change in quantity, quality, or state in the other concept. The focus question of the map directs student input of the concepts and ultimately determines what types of transitions are used. The …

Programming And Healing Temperature Effects On The Efficiency Of Confined Self-Healing Polymers, Yves Quentin Yougoubare

LSU Master's Theses

Shape memory polymers are smart materials capable of fixing a temporary shape and returning to their initial shape in response to an external stimulus. Since the discovery and acknowledgment of their importance in 1960s, shape memory polymers have been the subject of tremendous and continuous attention. In a previous study conducted on a biomimetic shape memory polymer (SMP), the ability of a self-healing composite to heal, and to repair and restore structural-length scale damage using a close-then-heal (CTH) self-healing mechanism was examined and validated. The present study is purposed with investigation of the effects on healing efficiencies of the variation …

Introduction: Masculinities, Multidimensionality, And Law: Why They Need One Another, Ann C. Mcginley, Frank Rudy Cooper

Scholarly Works

No abstract provided.

The Color Of Water: Observations Of A Brown Buffalo On Water Law And Policy In Ten Stanzas, Tom I. Romero Ii

Scholarly Works

No abstract provided.

Bioabsorbable Atrial Septal Occluder For Percutaneous Closure Of Atrial Septal Defect In Children, Osman Baspinar, Mehmet Kervancioglu, Metin Kilinc, Ahmet Irdem

The Texas Heart Institute Journal

The BioSTAR bioabsorbable septal repair implant is a new transcatheter secundum atrial septal defect occlusion device that is absorbed and replaced by healthy native tissue. This retrospective analysis was designed to determine the most significant factors for its successful use in children. From October 2009 through December 2010, 33 children underwent catheterization to close secundum atrial septal defects by means of the BioSTAR. The mean age of the patients was 6.8 ± 3.4 years (range, 2.5-13 yr), and the mean body weight was 22.6 ± 11 kg (range, 11-55 kg). The device was successfully implanted in 91% of patients (30/33). …

After Avandia: The Use Of Antidiabetic Drugs In Patients With Heart Failure, Khaled I Khalaf, Heinrich Taegtmeyer

The Texas Heart Institute Journal

Managing diabetes mellitus is an ongoing concern, especially in the presence of heart failure. Recent reports have drawn attention to adverse cardiovascular events associated with the use of thiazolidinediones, including rosiglitazone (Avandia). In 2011, the U.S. Food and Drug Administration implemented a stringent “restricted access program” for the prescription of Avandia. Other studies, which have revealed increased mortality rates in association with tight glycemic control, raise serious concerns about managing diabetes in heart-failure patients.

Herein, we provide a perspective on the management of noninsulin-dependent diabetes in patients with heart failure. We point out that thiazolidinediones exert their major effects through …

Hypoplastic Right-Heart Syndrome Presenting As Multiple Miscarriages, Chadi Dib, Philip A Araoz, Norman P Davies, Joseph A Dearani, Naser M Ammash

The Texas Heart Institute Journal

Reversible causes of miscarriage are many, but they affect only 1% of women who are trying to conceive. Herein, we describe the case of a 23-year-old woman who presented for evaluation of repeated miscarriages and was found to have hypoxemia and erythrocytosis. Further evaluation revealed hypoplastic right-heart syndrome with an intracardiac shunt. She underwent hybrid repair with pulmonary valve balloon valvuloplasty, followed by surgery to perform atrial septal defect closure and a Glenn anastomosis. The erythrocytosis and hypoxemia resolved, and she was able to conceive and deliver a healthy baby at term 2 years later.

This is a unique case …

Eptifibatide-Induced Thrombocytopenia: With Thrombosis And Disseminated Intravascular Coagulation Immediately After Left Main Coronary Artery Percutaneous Coronary Angioplasty, Michael W Tempelhof, Keith H Benzuly, Dan Fintel, Marc Z Krichavsky

The Texas Heart Institute Journal

Early clinical trials of eptifibatide did not show a significant association between eptifibatide and the development of thrombocytopenia, thrombosis, or disseminated intravascular coagulation. However, more recent literature has suggested a significant association between eptifibatide and the development of thrombocytopenia and thrombosis. Although the true incidence and the pathophysiology of these associations are unknown, the development of these events can be life-threatening. Herein, we describe the case of a patient who experienced acute onset of profound thrombocytopenia, developing thrombosis, pulmonary emboli, and disseminated intravascular coagulation. This paper adds to the few previous reports of cases that suggested an association between thrombocytopenia, …

Culprit-Vessel Percutaneous Coronary Intervention Followed By Contralateral Angiography Versus Complete Angiography In Patients With St-Elevation Myocardial Infarction, Chadi Dib, Elias B Hanna, Muhammad A Chaudhry, Thomas A Hennebry, Stavros Stavrakis, Mazen S Abu-Fadel

The Texas Heart Institute Journal

In patients with ST-elevation myocardial infarction, delay in door-to-balloon time strongly increases mortality rates. To our knowledge, no randomized studies to date have focused on reducing delays within the catheterization laboratory.

We performed a retrospective analysis of all patients who presented with ST-elevation myocardial infarction at our institution from July 2006 through June 2010, looking primarily at time differences between percutaneous coronary intervention in the culprit vessel on the basis of ECG criteria, followed by contralateral angiography (Group 1), versus complete coronary angiography followed by culprit-vessel percutaneous intervention (Group 2).

There were 49 patients in Group 1 and 57 patients …

Management Of Intra-Aortic Balloon Pump Entrapment: A Case Report And Review Of The Literature, Gerard J Fitzmaurice, Anton Collins, Haralambos Parissis

The Texas Heart Institute Journal

An intra-aortic balloon pump is one of the most valuable tools in the cardiac surgeon's armament to assist in the management of the failing heart. Despite its widespread use, there are associated risks and complications, one of which is balloon rupture with associated entrapment. Numerous approaches for dealing with this complication have been described; here we review the previous experience with intra-aortic balloon pump entrapment and discuss potential management, with particular reference to a recent case of our own.

Mid-Aortic Syndrome In A 3-Year-Old Girl Successfully Treated By Aorto-Aortic Grafting And Renal Artery Implantation Into The Graft, Tanja Kersnik Levart, Tomislav Klokocovnik

The Texas Heart Institute Journal

Mid-aortic syndrome, an uncommon acquired or congenital condition characterized by segmental narrowing of the abdominal or distal descending thoracic aorta, is frequently accompanied by ostial stenosis of the aorta's branches. If left untreated, it can result in life-threatening complications secondary to severe hypertension.

We report the case of a 3-year-old girl with congenital mid-aortic syndrome, who was diagnosed by chance in the course of a viral illness, and whose high blood pressure values were first dismissed as inaccurate. Attempts to achieve medical or endovascular control of her hypertension were unsuccessful. She was thereafter successfully treated by aorto–aortic bypass grafting, resection …

Intramyocardial Hematoma From Blunt Trauma Mimicking Apical Hypertrophic Cardiomyopathy, Meta Linda Mobula, Sammy Zakaria, Glenn A Hirsch

The Texas Heart Institute Journal

No abstract provided.

Transcatheter Retrieval And Repositioning Of Embolized Stent From The Right Ventricle In An Infant, Daisuke Kobayashi, Harinder R Singh, Daniel R Turner, Thomas J Forbes, Srinath T Gowda

The Texas Heart Institute Journal

Intracardiac stent embolization is a challenging complication in a small infant. A Palmaz stent was placed across the atrial septum in a 3-month-old boy to relieve symptoms of right-side heart failure. On routine chest radiography one week later, the stent was found to have embolized into the right ventricle. The stent was retrieved and repositioned by means of transcatheter technique, without subsequent complications. We found this method to be a viable alternative to surgery in a high-risk infant. To our knowledge, this is the first report of the successful transcatheter retrieval and repositioning of an expandable intravascular stent from an …

Extreme Thrombocytosis And Cardiovascular Surgery: Risks And Management, Ethan A Natelson

The Texas Heart Institute Journal

Extreme thrombocytosis is a major risk factor for excessive bleeding and for thrombosis, either of which can complicate cardiovascular surgical and interventional procedures. Extreme thrombocytosis can also cause an unusual syndrome, erythromelalgia, that results in a type of chronic microvascular occlusive arterial disease. We present the differential diagnosis of conditions that may lead to extreme thrombocytosis, 3 cases (each of which illustrates a different potential complication), and a review of the pertinent medical literature. Correcting excessive thrombocytosis is typically not difficult, whether electively or acutely, and effective therapy usually controls thrombosis and excessive hemorrhage post-procedurally.

Medical Education On The Brink: 62 Years Of Front-Line Observations And Opinions, Herbert L Fred

The Texas Heart Institute Journal

No abstract provided.

The History Of Art Versus The Art Of Surgery, Ugo Filippo Tesler

The Texas Heart Institute Journal

No abstract provided.

Long-Term Results Of Aortic Banding For Complex Infrarenal Neck Anatomy And Type I Endoleak After Endovascular Abdominal Aortic Aneurysm Repair, Zvonimir Krajcer, Kathryn G Dougherty, Igor D Gregoric

The Texas Heart Institute Journal

For many patients with abdominal aortic aneurysm, unsuitable anatomy of the infrarenal aortic neck precludes endovascular aortic aneurysm repair or causes type I endoleak after the procedure. In an attempt to overcome these challenges, we retrospectively examined the usefulness of aortic banding as an adjunctive procedure to endovascular repair in 8 patients who had an abdominal aortic aneurysm with a complex infrarenal aortic neck. The procedures were performed with the patients under general anesthesia and involved making an 8-cm upper-midline laparotomy incision to expose the aneurysmal aorta. Three patients underwent aortic banding before endovascular repair; the other 5 underwent banding …

Apical Hypertrophic Cardiomyopathy: Preliminary Attempt At Palliation With Use Of Subselective Alcohol Ablation, Paolo Angelini, Carlo Uribe, Jorge Monge, Jorge M Escobar, Eduardo Hernandez-Vila

The Texas Heart Institute Journal

We report a case of severe apical hypertrophic cardiomyopathy in order to discuss the nature of this unusual condition and the possibility of using selective alcohol ablation to effectively treat symptomatic hypertrophic cardiomyopathy that presents with apical aneurysm. A 73-year-old woman with severe, progressive dyspnea and intermittent chest pain was found to have localized left ventricular apical dyskinesia distal to an obstructive mid-distal muscular ring. The ring caused total systolic obliteration of the apical left ventricular cavity. Apical cavity pressure was extremely high, up to 330 mmHg-200 mmHg above that in the main left ventricular cavity. Because of the danger …