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The Use Of Argumentation In Socio-Scientific Issues: Enhancing Evolutionary Biology Instruction, Heath R. Marchand Aug 2015

The Use Of Argumentation In Socio-Scientific Issues: Enhancing Evolutionary Biology Instruction, Heath R. Marchand

Education and Human Development Master's Theses

With the adoption of the Next Generation Science Standards (NGSS), further emphasis in science education is being placed on preparing students to become more informed voters regarding social, ethical, economic and political topics that affect contemporary society. Parallel to this shift is a stronger emphasis on integrating evolutionary theory as a unifying concept in the biological sciences. Given that evolution is one of the aforementioned topics commonly discussed and debated about in social and political arenas, ensuring that instruction provides students from all backgrounds a comprehensive understanding of its principals is becoming increasingly important in contemporary science education. Chapter II ...


Importance Of Medical Informatics In Medical Students' Curricula In Saudi Arabia, Jwaher Abdullah Almulhem Aug 2015

Importance Of Medical Informatics In Medical Students' Curricula In Saudi Arabia, Jwaher Abdullah Almulhem

Theses and Dissertations

The main purpose of this research project is to determine the importance of Medical Informatics (MI) course inclusion in the curriculum studied by medical students in Saudi Arabia. The healthcare environment has changed dramatically since last few decades. It has become an information- intensive environment and has shifted its focus on technological applications. As a result of such a shift in focus, efforts should be made that future healthcare professionals be prepared for such an environment through MI. This research project aims to determine the acceptance of MI applications by medical students. The study will compare the acceptability of MI ...


Investigating The Use Of A Positive Variation Of The Good Behavior Game In A High School Setting, Shauna Lynne Aug 2015

Investigating The Use Of A Positive Variation Of The Good Behavior Game In A High School Setting, Shauna Lynne

Master's Theses

The Good Behavior Game (GBG) is an example of an interdependent group contingency that can be used in classrooms to manage behavior. The purpose of this study is to evaluate the effectiveness of a positive variation of the GBG in which teachers attend to rule-following behavior, as opposed to the original version of the game in which teachers attend to rule-breaking behavior. In previous studies, researchers have demonstrated the effectiveness of the GBG in decreasing problematic behavior and/or increasing productive or desired behavior in classroom settings and in hospital settings and spanning preschool-aged, elementary toddlers to high school-aged adolescents ...


The Relationships Among School Nurse To Student Ratios, Self-Efficacy For Type 1 Diabetes Management, And Glycemic Control In Adolescents, Lori Wilt May 2015

The Relationships Among School Nurse To Student Ratios, Self-Efficacy For Type 1 Diabetes Management, And Glycemic Control In Adolescents, Lori Wilt

Seton Hall University Dissertations and Theses (ETDs)

Type 1 diabetes mellitus (T1DM) is one of the most common chronic diseases of childhood. Adolescents with T1DM experience decreased treatment adherence, poor glycemic control, and acute complications more frequently than adults. Self-efficacy is the belief that one can carry out specific behaviors in specific situations and is the major determinant of intention, and has been shown to influence diabetes self-management in the adolescent.

School nurses are in a unique position to influence self-efficacy for type 1 diabetes management in adolescents. Although previous research has shown that school nurses positively influence student health outcomes in a variety of ways, there ...


The Italian Immigrants’ Assimilation Into American Culture And The Subsequent Impact On Food, Language And Last Names, Joseph S. Pechie May 2015

The Italian Immigrants’ Assimilation Into American Culture And The Subsequent Impact On Food, Language And Last Names, Joseph S. Pechie

Education and Human Development Master's Theses

The objective of this study is to examine the assimilation process of first, second, and third, generation Italian-Americans had on three facets of their culture’s everyday life, specifically: food, language, and last names. As Italians immigrated and assimilated into America, so did their culture and native traditions. Over time, the Italian culture has turned into a staple of American life and can be seen integrated into communities across the United States. A culture originally the subject of mockery, ridicule, and discrimination, the Italian culture endured decades, and generations, of change to become praised and appreciated. Although aspects of all ...


Exploring The Relationships Of Power, Attitudes Regarding Intermittent Fetal Monitoring, And Perceived Barriers To Research Utilization With A Labor And Delivery Nurse's Attitude Toward Patient Advocacy, Lisa Heelan May 2015

Exploring The Relationships Of Power, Attitudes Regarding Intermittent Fetal Monitoring, And Perceived Barriers To Research Utilization With A Labor And Delivery Nurse's Attitude Toward Patient Advocacy, Lisa Heelan

Seton Hall University Dissertations and Theses (ETDs)

A problem identified in nursing practice was the routine use of continuous fetal monitoring (CEFM) with low risk laboring women. CEFM is associated with worsened outcomes for the low risk laboring woman with no benefit to the newborn. In addition, this routine practice does not allow most laboring women the right to make an informed choice regarding treatment options. Nursing includes the role of patient advocacy. There was a need to better understand what is associated with a labor and delivery nurse’s attitude toward patient advocacy.

This descriptive correlational research design examined the relationships of power as knowing participation ...


Exploring The Relationship Between Moral Distress And Coping In Emergency Nursing, Kathleen Zavotsky May 2015

Exploring The Relationship Between Moral Distress And Coping In Emergency Nursing, Kathleen Zavotsky

Seton Hall University Dissertations and Theses (ETDs)

Background: Emergency Department (ED) nurses practice in environments that are highly charged and unpredictable in nature and can precipitate conflict between the necessary prescribed actions and the individual’s sense of what is morally the right thing to do. As a consequence of multiple moral dilemmas ED staff nurses are at risk for experiencing distress and how they cope with these challenges may impact their practice.

Objectives: Is to examine moral distress in ED nurses and its relationship to coping in that specialty group.

Methods: Using survey methods approach. One hundred ninety eight ED nurses completed a moral distress, coping ...


The Relationships Among Perceived Stress, Birth Satisfaction, And Breastfeeding Self-Efficacy In Early Postpartum Women, Katherine Hinic May 2015

The Relationships Among Perceived Stress, Birth Satisfaction, And Breastfeeding Self-Efficacy In Early Postpartum Women, Katherine Hinic

Seton Hall University Dissertations and Theses (ETDs)

This descriptive correlational study examined the relationships among perceived stress, birth satisfaction, and breastfeeding self-efficacy in women in the early postpartum period. The study, guided by self-efficacy and stress and coping theories, aimed to identify factors related to breastfeeding self-efficacy, an important psychological variable in sustained breastfeeding. The sample (N =107) was comprised of primarily well-educated, higher income, non-Hispanic White (69.8%) women recruited from a single New Jersey hospital in the first four days postpartum. The sample was comprised of nearly equal numbers of primiparous and multiparous women, all of whom expressed an intention to breastfeed, with an overall ...


Spiritual Perspective, Mindfulness, And Spiritual Care Practices Of Hospice And Palliative Care Nurses, Patricia Ricci-Allegra May 2015

Spiritual Perspective, Mindfulness, And Spiritual Care Practices Of Hospice And Palliative Care Nurses, Patricia Ricci-Allegra

Seton Hall University Dissertations and Theses (ETDs)

Spiritual care is an ethical obligation of the nursing profession and an essential component of palliative care, but is often misunderstood. Lack of conceptual clarity is problematic, for each nurse will provide spiritual care based on his or her understanding of what this care should include.

Regardless of how a nurse defines spiritual care, an important element of spiritual care is what nurses bring of themselves to the patient encounter. Findings from several studies have shown a positive relationship between a nurse’s spiritual perspective and spiritual care practices. Spiritual perspective has increased as a result of participating in programs ...


Exploration Of The Relationships Between And Among Role Strain, Faculty Stress, And Organizational Support For Clinical Nurse Faculty Faced With A Decision To Assign A Failing Grade, Jeannie Couper May 2015

Exploration Of The Relationships Between And Among Role Strain, Faculty Stress, And Organizational Support For Clinical Nurse Faculty Faced With A Decision To Assign A Failing Grade, Jeannie Couper

Seton Hall University Dissertations and Theses (ETDs)

Despite a stressful process, Clinical Nurse Faculty (CNF) are ultimately responsible for assigning a grade indicating that a student successfully met clinical course outcomes and standards of safe practice required to progress (Amicucci, 2012). The purpose of this descriptive correlational study was to explore the relationships between perceived role strain (PRS), perceived faculty stress (PFS), and perceived organizational support (POS) for CNF who faced the decision to assign a failing grade to a student in a clinical practicum. A national sample of 390 predominantly full-time, female, experienced CNF teaching in undergraduate and graduate nursing programs completed the online survey consisting ...


An Investigation Of The Relationships Between And Among Power, Trust And Job Satisfaction Of Nurse Managers In Acute Care Hospitals Using Rogers Science Of Unitary Human Beings, Maureen A. Schneider May 2015

An Investigation Of The Relationships Between And Among Power, Trust And Job Satisfaction Of Nurse Managers In Acute Care Hospitals Using Rogers Science Of Unitary Human Beings, Maureen A. Schneider

Seton Hall University Dissertations and Theses (ETDs)

Background: Defined as control and freedom, power is often characterized as hierarchical. Power-as-freedom exists as a unitary manifestation of the whole and is acausal. Thus a worldview that emphasizes mutual process rather than a causal (control) view supports a culture of trust in the healthcare environment that generates a committed and a thriving work force. When nurse leaders support a climate of trust, managers develop a sense of commitment to the organization which may lead to job satisfaction. However, there is a lack of empirical evidence supporting the relationship between power, trust and job satisfaction among nurse managers.

Purpose: The ...


Investigating The Role Of Wolbachia Endosymbionts In The Expansion Of The F Element In Drosophila Ananassae, Elizabeth J. Chen May 2015

Investigating The Role Of Wolbachia Endosymbionts In The Expansion Of The F Element In Drosophila Ananassae, Elizabeth J. Chen

Undergraduate Theses—Unrestricted

At 4.2 Mb overall, the Drosophila melanogaster Muller F element (dot chromosome) is an unusual autosome; it is broadly heterochromatic, but the distal 1.3 Mb has a gene density and expression pattern similar to other autosomes. More intriguing is the large expansion of the D. ananassae F element (~20 Mb). Elucidating the factors that contribute to this expansion could improve our understanding of how heterochromatic domains are maintained and amplified.

Previous analyses show that the lateral gene transfer (LGT) of Wolbachia (the most widespread intracellular bacteria in the Rickettsiales order) into the D. ananassae genome is an important ...


Factors Contributing To Registered Nurse Job Satisfaction In The Nursing Home, Michael Shipley May 2015

Factors Contributing To Registered Nurse Job Satisfaction In The Nursing Home, Michael Shipley

Seton Hall University Dissertations and Theses (ETDs)

Over the next several years the aging population will increase the number of patients suffering from chronic illness. A sicker aging population, coupled with changes in healthcare reimbursement will require nursing homes to admit sicker patients for shorter lengths of stays. To meet the needs of the increased number of chronic patients and those patients with higher acuities, nursing homes will require more skilled, registered nurses. Registered nurses (RNs) are the linchpin to providing high-quality care in the healthcare environment and especially in nursing homes.

Understanding the factors of RN job satisfaction in the nursing home is important in increasing ...


Acute Effects Of Self-Myofascial Release And Static Stretching On Shoulder Range Of Motion And Performance In Overhead Athletes With Glenohumeral Internal Rotation Deficit, Ryan R. Fairall May 2015

Acute Effects Of Self-Myofascial Release And Static Stretching On Shoulder Range Of Motion And Performance In Overhead Athletes With Glenohumeral Internal Rotation Deficit, Ryan R. Fairall

Seton Hall University Dissertations and Theses (ETDs)

Purpose: The purpose of this study was to examine the acute effects of a) self-myofascial release (SMR), b) static stretching (SS), and c) the combination of self-myofascial release and static stretching (SMR+SS) on glenohumeral internal rotation range of motion and markers of shoulder performance (i.e. glenohumeral external rotation isometric strength, motor unit recruitment, and throwing velocity) in male softball players with glenohumeral internal rotation deficit (GIRD).

Methods: The sample consisted of 12 male amateur softball players (age: 36.92 ±11.17 years; height: 177.42 ±6.30cm; mass: 87.58 ±18.39kg) who exhibited ≥20° less internal rotation ...


The Effects Of Walking On The Alter-G® Treadmill On Fat Oxidation In Overweight/Obese Males, Toni Lasala, Toni Lasala May 2015

The Effects Of Walking On The Alter-G® Treadmill On Fat Oxidation In Overweight/Obese Males, Toni Lasala, Toni Lasala

Seton Hall University Dissertations and Theses (ETDs)

Purpose: To determine if a reduction of body weight from 100% to 75% while walking on a lower body positive pressure treadmill (LBPP) affects peak oxygen consumption (V̇O2peak), fat oxidation (FO), peak fat oxidation (PFO), respiratory exchange ratio (RER), heart rate (HR) and rate of perceived exertion (RPE) in overweight and or obese men. Methods: Fourteen, overweight and obese men (mean age 23.2 ± 2.4 years, BMI 36.5 ± 3.8 kg/m2 and Body Fat % 38.6 ± 7.0%) were randomly assigned to walking on the LBPP treadmill at 100% and 75% of their body ...


Perceived Attributes And Factors Influencing Instructors’ Using E-Textbooks In Higher Education, Sirui Wang May 2015

Perceived Attributes And Factors Influencing Instructors’ Using E-Textbooks In Higher Education, Sirui Wang

Dissertations

As digital content, e-Textbooks display text on the screen, integrate multimedia within textual components, and allow reading on portable devices; which make learning highly interactive, flexible, and immediately accessible, increase students’ engagements in learning, and make learning content portable, transferrable, and searchable. Those advanced features did not bring prosperity in using e-Textbooks in education. The adoption of using e-Textbooks in higher education is still far from its confirmation stage. The purpose of this study was to examine the relationship between the perceived attributes of using e-Textbooks by instructors and their actual use of e-Textbooks in higher educational settings, to discuss ...


A Study In How Linking Social Capital Functions In Community Development, Julie Burress Jordan May 2015

A Study In How Linking Social Capital Functions In Community Development, Julie Burress Jordan

Dissertations

This qualitative dissertation explores how linking social capital is mobilized in community development and proposes an analytical framework for studying linking social capital relationships unique from bonding and bridging social capital. Linking social capital defines those relationships that are acting to bridge individuals across institutional boundaries and can be particularly important in rural, less developed regions. Although not frequently used in empirical studies, linking capital is typically measured by counting membership in external groups or associations. This study revealed the most direct benefit from linking social capital was financial support from intermediary agencies. Additionally, linking social capital has indirect community ...


Mechanochemical Investigation Of A Glassy Epoxy-Amine Thermoset Subjected To Fatigue, Stephen F. Foster Mr. May 2015

Mechanochemical Investigation Of A Glassy Epoxy-Amine Thermoset Subjected To Fatigue, Stephen F. Foster Mr.

Dissertations

Covalent bonds in organic molecules can be produced, altered, and broken through various sources of energy and processes. These include photochemical, thermochemical, chemical, and mechanochemical processes. Polymeric materials derive their physical properties from the time scale of motion, summation of intermolecular forces, and number of chain entanglements and crosslinks. Glassy thermoset polymers experience mechanical fatigue during dynamic stress loading and properties diminish with inevitable material failure at stress levels below the ultimate tensile strength (UTS). Damage modeling has been successful in predicting the number of cycles required to induce failure in a specimen due to stress. However, it does not ...


Physical Disability And Suicidal Desire: An Examination Of The Constructs Of The Interpersonal-Psychological Theory Of Suicide, Lauren R. Khazem May 2015

Physical Disability And Suicidal Desire: An Examination Of The Constructs Of The Interpersonal-Psychological Theory Of Suicide, Lauren R. Khazem

Master's Theses

The primary aims of this study were to examine constructs of the Interpersonal-Psychological Theory of Suicide (IPTS) in an understudied population. Differences in levels of IPTS variables and suicidal ideation between university students with and without physical disabilities were examined. Participants were 184 students from two Southern universities who provided answers to online-based self-report questionnaires. It was hypothesized that students with physical disabilities would endorse higher levels of all IPTS constructs relative to students without physical disabilities. It was further hypothesized that disability status would exhibit an indirect effect on suicidal ideation through perceived burdensomeness and thwarted belongingness. Results indicated ...


Return To Holy Hill: Louisiana College, Academic Freedom, And The Southern Baptist Convention's Conservative Resurgence, 1995-2006, Joseph L. Odenwald May 2015

Return To Holy Hill: Louisiana College, Academic Freedom, And The Southern Baptist Convention's Conservative Resurgence, 1995-2006, Joseph L. Odenwald

Dissertations

This study examines a period in the history of Louisiana College in which the college’s sponsoring organization, the Louisiana Baptist Convention, a Southern Baptist affiliate, began to insist that professors at the college teach only in accordance with the official views of the Southern Baptist Convention. The literature is replete with studies on the movement affecting the Southern Baptist seminaries, but little has been written about the impact of the Southern Baptist Convention’s Conservative Resurgence on the colleges.

As such, this study explores the changes that were made to the academic freedom and governance policies as the trustees ...


The Perceptions Of Mississippi Secondary School Counselors And School Administrators Regarding The Role Of School Counselors In Dropout Prevention, Sherrell Chollottie Gilmore May 2015

The Perceptions Of Mississippi Secondary School Counselors And School Administrators Regarding The Role Of School Counselors In Dropout Prevention, Sherrell Chollottie Gilmore

Dissertations

The purpose of the study was to investigate the perceptions of high school administrators and professional high school counselors regarding the primary role of professional school counselors in dropout prevention and the most appropriate way to assess professional school counselors’ effectiveness in dropout prevention. The modified Counselor Role Survey instrument was used to survey high school administrators and professional high school counselors. The study used a descriptive causal-comparative quantitative design.

Hypotheses were tested using independent t-tests. The results of the study indicated there was no statistically significant difference between the perceptions of Mississippi high school administrators and professional high ...


Encouraging Bipartisanship: Polarization And Civility As Rhetorical Tools For Ameliorating The U.S. Senate’S Partisan Environment, Angela M. Mcgowan Ms. May 2015

Encouraging Bipartisanship: Polarization And Civility As Rhetorical Tools For Ameliorating The U.S. Senate’S Partisan Environment, Angela M. Mcgowan Ms.

Dissertations

On October 1, 2013, the Senate buckled under the pressure of intense partisanship. Dramatically demonstrating their lack of mutual agreement, senators refrained from conducting the nation’s business for 16 days. Considerable media attention covered this shut down, especially the ensuing rhetorical activities of the Senate’s female policymakers who urged bipartisanship. The flurry of activity surrounding the legislative impasse sparked this dissertation’s conceptual orientation. Accordingly, this investigation reveals how Washington lawmakers can, in good faith, set aside partisan views in order to accommodate policy objectives.

This project reveals rhetorical strategies that, when utilized, are capable of facilitating Senate ...


An Analysis Of The Impact Of The Education Special Purpose Local Option Sales Tax (E-Splost) On Capital Outlay Expenditures In Georgia School Districts, Robert Bradley Benson May 2015

An Analysis Of The Impact Of The Education Special Purpose Local Option Sales Tax (E-Splost) On Capital Outlay Expenditures In Georgia School Districts, Robert Bradley Benson

Dissertations

In 1996, legislators approved an amendment to the Georgia Constitution which granted local Boards of Education the authority to seek voter approval for a 1% Education Special Purpose Local Option Sales Tax (E-SPLOST). Revenues from E-SPLOST were to be used exclusively for capital expenses or to retire debt incurred as a result of capital expenses. This study examined eight years of per pupil expenditure data to determine the impact of the E-SPLOST.

The data indicated that differences in per pupil expenditures for instructional equipment were significant, revealing a reduction post E-SPLOST. Further, expenditures for new construction and improvements to existing ...


Material Coefficient Of Thermal Expansion Investigation For Use In Additive Manufacturing Fused Deposition Modeling For Composite Tooling, Daniel Miller May 2015

Material Coefficient Of Thermal Expansion Investigation For Use In Additive Manufacturing Fused Deposition Modeling For Composite Tooling, Daniel Miller

Master's Theses

Polymer matrix composites are being used to manufacture light weight, high stiffness aircraft structures. These structures are often manufactured from carbon fiber reinforced epoxy. When these structures are damaged, they must be repaired to restore strength to the component to avoid the cost and logistics of having replacements parts. Occasionally, these repairs require tooling in order to make a quality repair, however, tooling generally has a long lead time. Additive manufacturing could be used to manufacture rapid tooling to create tooling for composite repairs. The issue is that polymer printed tooling has a much higher coefficient of thermal expansion (CTE ...


Teachers' Perceptions Of Their Ability To Respond To Active Shooter Incidents, Carole F. Rider May 2015

Teachers' Perceptions Of Their Ability To Respond To Active Shooter Incidents, Carole F. Rider

Dissertations

The purpose of this research study was to determine Mississippi high school teachers’ perceptions regarding their preparedness for an active shooter incident. The study included an extensive literature review that included background and policy context, theoretical foundations, pertinent research and professional perspectives and a worldwide timeline of school shootings. The study also included data collection and analysis, results, conclusions, recommendations for policymakers and educational leaders, and recommendations for further research.

The study was conducted to determine if there was a relationship between school planning procedures, participation in practice and drill activity, and administrator preparedness for an active shooter incident and ...


The Soldier And The Cigarette: 1918-1986, Joel Richard Bius May 2015

The Soldier And The Cigarette: 1918-1986, Joel Richard Bius

Dissertations

The military-industrial complex has been the topic of intense conversation among historians since President Dwight Eisenhower first gave the phrase life in January 1961. The term typically conjures up images of massive weapons procurement programs, but it also ironically involved one of the world’s most highly-engineered consumer products, the manufactured cigarette. “The Soldier and the Cigarette: 1918–1986” describes the unique, often comfortable, yet sometimes controversial relationships among the military, the cigarette industry, and tobaccoland politicians. The dissertation argues that the federal government’s first cigarette warning in 1964 changed a relationship between soldiers and cigarettes that the Army ...


Determining Whether A Link Exists Between The Academic Performance Of Mississippi Public School Districts And School Administrators' Use Of Persuasive Communication Techniques And Self-Efficacy In Communication, David A. Burris May 2015

Determining Whether A Link Exists Between The Academic Performance Of Mississippi Public School Districts And School Administrators' Use Of Persuasive Communication Techniques And Self-Efficacy In Communication, David A. Burris

Dissertations

This study sought to determine whether a link existed between types of persuasive communication methods and the academic performance of school districts and whether administrators’ perceived self-efficacy as communicators was related to the academic performance of school districts. This study could help school officials to analyze their use of persuasive communication methods to determine if they are communicating with the public in a manner that is conducive to achieving the goals related to the academic performance of their district. School officials could also use the results of this study to design or modify an existing public relations plan to communicate ...


Cure Kinetics, Morphologies, And Mechanical Properties Of Thermoplastic/Mwcnt Modified Multifunctional Glassy Epoxies Prepared Via Continuous Reaction Methods, Xiaole Cheng May 2015

Cure Kinetics, Morphologies, And Mechanical Properties Of Thermoplastic/Mwcnt Modified Multifunctional Glassy Epoxies Prepared Via Continuous Reaction Methods, Xiaole Cheng

Dissertations

The primary goal of this dissertation is to develop a novel continuous reactor method to prepare partially cured epoxy prepolymers for aerospace prepreg applications with the aim of replacing traditional batch reactors. Compared to batch reactors, the continuous reactor is capable of solubilizing and dispersing a broad range of additives including thermoplastic tougheners, stabilizers, nanoparticles and curatives and advancing epoxy molecular weights and viscosities while reducing energy consumption.

In order to prove this concept, polyethersulfone (PES) modified 4, 4’-diaminodiphenylsulfone (44DDS)/tetraglycidyl-4, 4’-diaminodiphenylmethane (TGDDM) epoxy prepolymers were firstly prepared using both continuous reactor and batch reactor methods. Kinetic studies ...


A Settlement Geography Of Three Ports On The Northern Gulf Of Mexico: The Role Of Rivers, Railroads, And Hurricanes: 1830-1930, Zachary E. Kalina May 2015

A Settlement Geography Of Three Ports On The Northern Gulf Of Mexico: The Role Of Rivers, Railroads, And Hurricanes: 1830-1930, Zachary E. Kalina

Master's Theses

The settlement geography of the Gulf Coast of the United States possesses and shares unique cultural and historical characteristics. The thesis analyzes three selected towns along the coast: Indianola, Texas; Pascagoula, Mississippi; and Apalachicola, Florida. The thesis focuses on describing each town’s historical background and early efforts at permanent settlement, the expansion of the settlement using various modes of transportation such as shipping and railroads, the economic and agricultural base that was used to improve the settlement’s reputation, the characteristics of the settlement’s concept of folk housing, and the impact and recovery of the settlement from disasters ...


A Study On Photodegradation And The Fate Of Pyrogenic Carbon, John T. Howell May 2015

A Study On Photodegradation And The Fate Of Pyrogenic Carbon, John T. Howell

Master's Theses

Accounting for all possible sources of atmospheric CO2 is a pressing issue today due to the increasing effects of climate change. Estimates suggested that on the order of 1.3 million tons of dissolved pyrogenic carbon (pyDOC) could be entering the northern Gulf of Mexico annually. Assessing the fate of pyDOC in aquatic systems is crucial to understanding ecosystem impacts and potential feedback to climate change. Current research indicates that despite a generally lower susceptibility to biodegradation than their unpyrolyzed equivalents, pyrogenic carbon is not environmentally inert. While the role of microorganisms on the fate and transformation ...