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Crisis Management Strategy Conceptual Framing According To The Islamic Perspective, Eythar Abdulhadi Al Feehan Dec 2011

Crisis Management Strategy Conceptual Framing According To The Islamic Perspective, Eythar Abdulhadi Al Feehan

Journal of Economics and Administrative Sciences

The research concern about the conceptual framework of crisis in the strategic view has become to mean opportunity to change not threat only. The research explains the multi stages of crisis & its characteristics that are difference from catastrophe and disaster. We rely on two criteria of classification of crisis (predictability & influence possibilities). Also there are sub crises with the main crisis; the important one is the Maida Crisis which is related with the informational dimension & the Psychological Crisis which is related with the Human dimension or the victim management. The current research aimed to develop crises management …


Parenting Strategies As Predictors Of Cognitive Development Among Children, Nydia E. Martinez Dec 2011

Parenting Strategies As Predictors Of Cognitive Development Among Children, Nydia E. Martinez

Theses and Dissertations - UTB/UTPA

The present study investigated relationships among parenting strategies, socioeconomic status, and theory of mind development in 88 (43 girls and 45 boys) predominantly Hispanic 3 – to 7-year-old children. Vocabulary and ToM reasoning (via one true and one false belief task) levels were assessed. Parents completed demographic surveys and a disciplinary questionnaire, which presented the parents with hypothetical corrective behavioral situations. Contrary to expectations there were no significant relations between ToM, parenting strategies, and socioeconomic status in the overall sample. However, examining children tested in English and children tested in Spanish separately yielded some significant results. In the Spanish-speaking sample, …


The Use Of Debit Cards In Promoting On-Time Payment Behavior In A Daycare Center In The Rio Grande Valley Region Of Texas, Ruben James Nieto Dec 2011

The Use Of Debit Cards In Promoting On-Time Payment Behavior In A Daycare Center In The Rio Grande Valley Region Of Texas, Ruben James Nieto

Theses and Dissertations - UTB/UTPA

The study investigates the inappropriate payment behavior of consumers at a local daycare in the Rio Grande Valley. An AB, baseline and intervention, single subject design was used to increase the on-time payment behavior of consumers paying on time at the daycare. Baseline data was taken for 14 weeks before the intervention was implemented. The intervention consisted of an alternative payment method, accepting credit and debit cards, [as an antecedent, to the consumer in order to receive payments on time]. This alternative payment method showed that on-time payment behavior increased compared to pre-intervention.


A Correlated Behavioral And Biochemical Analysis Investigating Gonadal Influence On Prefrontal Cortical Function Through Modulation Of Nmda Receptor Trafficking, Surya Bhamidipaty Dec 2011

A Correlated Behavioral And Biochemical Analysis Investigating Gonadal Influence On Prefrontal Cortical Function Through Modulation Of Nmda Receptor Trafficking, Surya Bhamidipaty

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Neuronal activity in the prefrontal cortex (PFC) underlies working memory processes in the brain. Reports have suggested critical roles for gonadal steroid modulation of this PFC function in adult male rats (Kritzer et al 2007), yet the exact mechanisms have yet to be defined. Given the clinical implications of male PFC vulnerability with schizophrenia, this is an important question to be addressed. This thesis seeks to gain insight as to whether hormone control over NMDA-receptor mediated glutamate signaling may be part of the way hormones influence the PFC's complex operations. This will be accomplished in interrelated studies using gonadally intact …


Post-Traumatic Stress Disorder: Symptoms And Its Relationship To Corticosteroid Dysregulation, Michelle Bylicky Dec 2011

Post-Traumatic Stress Disorder: Symptoms And Its Relationship To Corticosteroid Dysregulation, Michelle Bylicky

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Stress is the subjective experience of encountering or being affected by psychological or physical threats. Depending on the situation and the individual's ability to adapt to the particular event will affect how the individual continues to function. Memory can be both adaptive and maladaptive to the individual recovering from the stress of the event. It is known that part of successful adaptation is remembering the important events of a trauma in order to better decide how to react in possible, similar future events. However, certain individuals can develop Post traumatic Stress disorder (PTSD) as a response to an event. PTSD …


The Experience Of Korean American First Born Or Only Sons In The United States: Privilege Or Burden?, Heesoo Karina Kim Dec 2011

The Experience Of Korean American First Born Or Only Sons In The United States: Privilege Or Burden?, Heesoo Karina Kim

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Summary: Qualitative interviews were conducted to examine the dynamics of gender roles, tradition, culture, and parental expectations, often influenced by Confucian values, of Korean American first-born or only sons. Theories of stress, identity, and acculturation may inform how gender and status affect outlook on life, relationships, duties, career, and mental and physical health. Method: 47 Korean Americans, ages 18-40, of whom 35 were first-born or only sons, were interviewed. For corroborative data, 12 siblings (five younger brothers and seven sisters) were also interviewed. A semi-structured, open-ended, 25 question guide was used for interviews which were then recorded and transcribed. Results: …


Breast Cancer Survivors' Perception Of Yoga Practice For Different Spans Of Time, Karyn Kirschbaum Dec 2011

Breast Cancer Survivors' Perception Of Yoga Practice For Different Spans Of Time, Karyn Kirschbaum

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

This qualitative study uses an exploratory research design that incorporates both grounded theory and phenomenological approaches in order to gain insight into the meaning of yoga in relation to coping with breast cancer. The study focuses on the individual, lived experience and relies on in-depth interview strategies to capture the subjects' sensations and perceptions of the practice and utility of yoga over the duration of time. By interviewing women who practice yoga for different spans of time, several aspects are explored: if the length of time affects any observed changes; if transitional stages in yoga progression can be identified, and …


Anger And Approach Motivation In The Parenting Context And Associated Frontal Activity: An Eeg Study, Lauren Knickerbocker Dec 2011

Anger And Approach Motivation In The Parenting Context And Associated Frontal Activity: An Eeg Study, Lauren Knickerbocker

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Emotion processing in the brain produces asymmetrical cortical activity in the left and right prefrontal regions, dependent on the emotional stimuli used. Empirically supported but competing hypotheses explain this phenomenon using qualities of the emotion that characterize either its valence (positive or negative) or its motivation potential (approach or avoid).The emotional stimuli used are often confounded in that both positive affect and approach-oriented emotions have been positively associated with increased left prefrontal activity, and negative affect and avoidance-oriented emotions have been positively associated with increased right prefrontal activity. Anger, which is negative in valence and approach-oriented, disentangles previous confounds and …


Wordsworth's Philosophy Of Wonder: Epistemology, Psychoanalysis, Phenomenology, Matthew Robert Lorenz Dec 2011

Wordsworth's Philosophy Of Wonder: Epistemology, Psychoanalysis, Phenomenology, Matthew Robert Lorenz

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Though scholars in the field of British Romanticism have made much of the opposition between the Enlightenment system genre and the Romantic fragment genre, they have granted comparatively little attention to the epistemological counterpoint to system: the detotalizing attitude of a philosophical wonder. By highlighting the integral yet much neglected role that wonder has played in Romantic epistemology and in Wordsworth's prose and Prelude in particular, this study rectifies the misguided assumptions that have informed modern accounts of Wordsworth's epic aspirations and philosophical practices. While Arnold famously alleged that the British Romantics "did not know enough, this dissertation demonstrates that …


Imperial Education And The Crisis Of Political Leadership In Postcolonial Kenya, Mwangi D. Njagi Dec 2011

Imperial Education And The Crisis Of Political Leadership In Postcolonial Kenya, Mwangi D. Njagi

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

This dissertation examines how imperial education contributed to the crisis of Kenya's postcolonial political leadership. It argues that the system of education inaugurated by the agents of European imperialism, having banished imaginative political leadership of pre-colonial African society and embedded itself as the superior alternative, fashioned African political elite who could not be relied upon to spearhead modernization of their societies. Instead, these elite became more adroit at preserving the same instruments of colonial state that had been used to subjugate Africans. The study reassesses our understanding of colonial education in the context of African colonialism, showing that the common …


Suppressed Home Desires In The Refugee Experience: Literary And Pedagogical Approaches To Letters To Montgomery Clift By No?_L Alumit, Alison Marie Peterman Dec 2011

Suppressed Home Desires In The Refugee Experience: Literary And Pedagogical Approaches To Letters To Montgomery Clift By No?_L Alumit, Alison Marie Peterman

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

This project will be two -fold; it will examine the use of literary devices in queer diasporic themed literature and it will also include a secondary, pedagogical approach to the literature. The first section will be comprised of a critical analysis of the themes and characters and how these aspects work together. Dominant ideology, particularly heteronormativity in terms of gender and sexuality, is often put under a microscope within these works and by encouraging these works in a secondary education classroom, students will be inspired to question. Diasporic journeys to new home spaces and characters' establishments of (new) identities is …


Emotion And The Work Of Writing: The Making Of Modern Literature In Media History, Wentao Jiang Dec 2011

Emotion And The Work Of Writing: The Making Of Modern Literature In Media History, Wentao Jiang

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

This dissertation investigates a history of representation of emotions in the British long eighteenth century and in the context of a rising textual culture. I do so by tracing the trope of sympathy, which is pervasive in eighteenth-century writings such as aesthetic treatises, moral philosophy, and Romantic poetry. Sympathy builds sociality through the communication of feelings and is enacted in the practices of reading, writing and representation, all of which were changing drastically as everyday life was increasingly saturated with textual media. In the process, individual emotions have to be "flattened" (Adam Smith's word) so as to be communicable, while …


Temperament Intervention For Problem Behavior In Children With Autism Spectrum Disorders, Lauren Adamek Dec 2011

Temperament Intervention For Problem Behavior In Children With Autism Spectrum Disorders, Lauren Adamek

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Problem behavior is a major barrier to good quality of life for families who have children with Autism Spectrum Disorders (ASD). The concept of modifying the environment to produce a better match with a child's temperament is commonly used to inform interventions in the child development field. However, temperament has not yet been integrated into problem behavior interventions for children with ASD, nor have temperament-based strategies been evaluated in a systematic way. The purpose of the present study was to employ temperament-based interventions to modify problematic environmental contexts so that they are a better fit for the temperament styles of …


The Evolution Of Milton's Satan Through Paradise Lost And Paradise Regained And Milton's Establishment Of The Hero, Nicole Cammareri Dec 2011

The Evolution Of Milton's Satan Through Paradise Lost And Paradise Regained And Milton's Establishment Of The Hero, Nicole Cammareri

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

One of the most imposing themes of John Milton's Paradise Lost (1667) is the depiction of Satan as heroic. Although deplorable and malevolent, the Satan of Paradise Lost appeals to the reader, and his actions and thoughts are easily agreed upon. Embodying the classification of tragic hero, Satan has both made an error in judgment and was overcome by a tragic flaw that brought about a devastating calamity. Moving onto Milton's second epic, Paradise Regained (1671), presents a new problem for the reader as the Satan that he became close to in Paradise Lost is non-existent. Satan is no longer …


Female Social Conventions In The Plays Of Eugene O'Neil, Pamela L. Wells Dec 2011

Female Social Conventions In The Plays Of Eugene O'Neil, Pamela L. Wells

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

This paper explores the plays of Eugene O'Neill through the eyes social conventions. Social conventions are infused within and influence individuals in all walks of life. Authors, as well, record these social conventions in their writing, either consciously or subconsciously. Studying these social conventions can give us a new perspective of man during different periods of history. In the plays Anna Christie, Desire Under the Elms and Mourning Becomes Electra, Eugene O'Neill's female characters display attributes that stray from what society believes as acceptable behavior for woman. These unwritten rules of behavior I call social conventions. This paper examines the …


Examining Experience In Depressed And Nondepressed Individuals, Jedidiah D. Gunter Dec 2011

Examining Experience In Depressed And Nondepressed Individuals, Jedidiah D. Gunter

UNLV Theses, Dissertations, Professional Papers, and Capstones

The inner experience of nine depressed and nine nondepressed individuals was explored using Descriptive Experience Sampling. Each participant completed four days of descriptive experience sampling, exploring about six moments of their inner experience on each sampling day. Although the Depressed participants self-reported substantially higher levels of depressive symptomatology on the Center for Epidemiological Studies Depression scale (CES-D) on each day of sampling, the differences in the frequency of depressive symptomatology in the inner experiences of these two groups were not statistically significant. Despite the group differences not reaching statistical significance, the Depressed group experienced somewhat more frequent moments of depression, …


A Case Study Of Organizational Change: College Restructuring In Response To Mandated Department Eliminations, Brandy Dyan Smith Dec 2011

A Case Study Of Organizational Change: College Restructuring In Response To Mandated Department Eliminations, Brandy Dyan Smith

UNLV Theses, Dissertations, Professional Papers, and Capstones

Faced with unprecedented budget cuts, Western University had implemented vertical cuts in the Spring of 2010 resulting in the elimination of two departments within their College of Education. Western University was not alone in its struggle. Institutions nationwide were coping with similar financial constraints, with freezes, consolidations, and eliminations becoming commonplace and threatening institutional quality.

The issue of how colleges and the leaders, groups, and individuals within them cope, process, and reorganize following eliminations has quickly gained importance, although there are few empirical studies to guide such changes. The existing literature on restructuring, particularly adaptability and change processes, has focused …


The Impact Of Regulating Social Science Research With Biomedical Regulations, Brenda Braxton Durosinmi Dec 2011

The Impact Of Regulating Social Science Research With Biomedical Regulations, Brenda Braxton Durosinmi

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Impact of Regulating Social Science Research with Biomedical Regulations Since 1974 Federal regulations have governed the use of human subjects in biomedical and social science research. The regulations are known as the Federal Policy for the Protection of Human Subjects, and often referred to as the "Common Rule" because 18 Federal agencies follow some form of the policy. The Common Rule defines basic policies for conducting biomedical and social science research. Almost from the inception of the Common Rule social scientists have expressed concerns of the policy's medical framework of regulations having its applicability also to human research in …


Strike Out Across The Shoreless Ocean, Julia Claire Paajanen Dec 2011

Strike Out Across The Shoreless Ocean, Julia Claire Paajanen

UNLV Theses, Dissertations, Professional Papers, and Capstones

What happens between a reader and a poem is none of my business. The world has always been yours; find your own way.

(1) Every choice is correct.

(2) Everything is true.

(3) What is anything, unless so far as it is enjoyed?

All you have to do is see the course, and when you see it, go.


Evaluating A Social Skills Training Protocol In A Private Setting: Outcomes And Issues, Judi Davis Dec 2011

Evaluating A Social Skills Training Protocol In A Private Setting: Outcomes And Issues, Judi Davis

UNLV Theses, Dissertations, Professional Papers, and Capstones

Society is dealing with a trend of aggressive and destructive behavior among children and adolescence. Children with social, emotional, and conduct problems are at high risk for academic failure, peer rejection, conduct disorder, school dropout, delinquency, and drug and alcohol problems (Webster-Stratton, Reid, & Stoollmiller, 2008). A high priority for the United States public health and crime prevention is the prevention of aggressive and delinquent behavior during childhood and adolescence (Taylor, Eddy, & Biglan 1999).

Social skills trainings aim to increase the performance of key social behaviors that are important for children to succeed in social situations. Solutions may be …


The Utilization And Effectiveness Of The Hesi E(Square) Exit Exam As A Graduation Requirement Toward Increasing Nclex-Rnrtm Pass Rates In Baccalaureate Nursing Programs, Debra Henline Sullivan Dec 2011

The Utilization And Effectiveness Of The Hesi E(Square) Exit Exam As A Graduation Requirement Toward Increasing Nclex-Rnrtm Pass Rates In Baccalaureate Nursing Programs, Debra Henline Sullivan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Due to a desire to better prepare BSN students for the Nurse Council Licensure Examination for Registered Nurses (NCLEX-RN® ) and to increase first-time pass rates, nursing programs across the US are using predictive testing to implement policies that require students to pass a standardized exit exam to graduate (National League for Nursing, 2010). Evolve Learning Systems owned by Elsevier, Inc. offers such an exit exam named the HESI E 2 , which recommends a benchmark score to predict success on the NCLEX-RN® . To offset an expected decrease in NCLEX-RN® pass rates due to recent changes …


Job Stress, Mentoring, Psychological Empowerment, And Job Satisfaction Among Nursing Faculty, Catherine Emily Ebersole Chung Dec 2011

Job Stress, Mentoring, Psychological Empowerment, And Job Satisfaction Among Nursing Faculty, Catherine Emily Ebersole Chung

UNLV Theses, Dissertations, Professional Papers, and Capstones

The National League for Nursing (NLN) endorses mentoring throughout the nursing faculty career trajectory as the method to recruit nurses into academia and improve retention of nursing faculty within the academy (NLN, 2006). One way mentoring assists faculty is by easing socialization to the culture of the employing institution and decreasing faculty stress (Lewallen, Crane, Letvak, Jones, & Hu, 2003). Mentoring can also be a facilitating factor of an individual's psychological empowerment. Academia is an environment able to foster psychological empowerment, a state in which faculty may be self-directed, highly productive, confident, and find a meaningful connection to their work …


School Counselor Assignment In Secondary Schools: Replication And Extension, Jennifer L. Williamson Dec 2011

School Counselor Assignment In Secondary Schools: Replication And Extension, Jennifer L. Williamson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Before school counselors can carry out the duties and responsibilities outlined as part of a comprehensive school counseling program, they must know which students they are responsible for helping. The topic of assigning students to school counselors has only recently been seen in the educational research arena in a study by Akos, Schuldt, and Walendin (2009). The current study attempts to replicate and extend the findings of Akos, Schuldt, and Walendin by addressing the questions of how secondary school counselors are assigned and what are their perceptions of their assignment. In addition, the study attempts to determine whether a particular …


Change Is Learning: Metacognition To Resolve Concerns During The Third Year Of The Implementation Of A Technological Innovation, Nola Allen-Raffail Dec 2011

Change Is Learning: Metacognition To Resolve Concerns During The Third Year Of The Implementation Of A Technological Innovation, Nola Allen-Raffail

UNLV Theses, Dissertations, Professional Papers, and Capstones

"We are living in a time of change. Rather than viewing change as a painful course of action, let's develop an understanding of how it works, how to facilitate the process, and how to learn from our experiences" (Hall & Hord, 2011, p. 18).

This study used a snapshot of a private Kindergarten-12th grade school during the third year of the implementation of a technological innovation (RenWeb) to investigate teacher concerns during the process of change and gain insights into individuals' use of metacognition to resolve those concerns. Two primary research instruments were used, the Stages of Concern Questionnaire …


The Long-Term Impact Of A Loyalty Program: An Evaluation From A Las Vegas Casino Hotel, Myongjee Yoo Dec 2011

The Long-Term Impact Of A Loyalty Program: An Evaluation From A Las Vegas Casino Hotel, Myongjee Yoo

UNLV Theses, Dissertations, Professional Papers, and Capstones

Loyalty programs are popular marketing strategies intended to attract, maintain, and enhance customer relationships. Despite the widespread usage of loyalty programs across various businesses, its effectiveness has not been well validated. Few empirical studies attempted to evaluate the value of loyalty programs but the findings have been conflicting with each other. Given the competitive climate of such a highly saturated competitive market of the hospitality industry, it is meaningful for hospitality marketers to evaluate the effectiveness of loyalty programs to increase customer retention and profitability. Therefore, the main purpose of this study was to examine the effectiveness of a hospitality …


Being Outside Learning About Science Is Amazing: A Mixed Methods Study, Michelle L. Weibel Dec 2011

Being Outside Learning About Science Is Amazing: A Mixed Methods Study, Michelle L. Weibel

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study used a convergent parallel mixed methods design to examine teachers' environmental attitudes and concerns about an outdoor educational field trip. Converging both quantitative data (Environmental Attitudes Scale and teacher demographics) and qualitative data (Open-Ended Statements of Concern and interviews) facilitated interpretation. Research has shown that adults' attitudes toward the environment strongly influence children's attitudes regarding the environment. Science teachers' attitudes toward nature and attitudes toward children's field experiences influence the number and types of field trips teachers take. Measuring teacher attitudes is a way to assess teacher beliefs.

The one day outdoor field trip had significant outcomes for …


The Role Of Metrical Structure In Tonal Knowledge Acquisition, Matthew Rosenthal Dec 2011

The Role Of Metrical Structure In Tonal Knowledge Acquisition, Matthew Rosenthal

UNLV Theses, Dissertations, Professional Papers, and Capstones

Experienced listeners possess a working knowledge of pitch structure in Western music, such as scale, key, harmony, and tonality, which develops gradually throughout childhood. It is commonly assumed that tonal representations are acquired through exposure to the statistics of music, but few studies have investigated potential learning mechanisms directly. In Western tonal music, tonally stable pitches not only have a higher overall frequency of occurrence, but they may occur more frequently at strong than weak metrical positions, providing two potential avenues for tonal learning. Two experiments employed an artificial grammar learning paradigm to examine tonal learning mechanisms. During a familiarization …


Adolphe Nourrit, Gilbert Duprez, And The High C: The Influences Of Operatic Plots, Culture, Language, Theater Design, And Growth Of Orchestral Forces On The Development Of The Operatic Tenor Vocal Production, Micheal Lee Smith Jr. Dec 2011

Adolphe Nourrit, Gilbert Duprez, And The High C: The Influences Of Operatic Plots, Culture, Language, Theater Design, And Growth Of Orchestral Forces On The Development Of The Operatic Tenor Vocal Production, Micheal Lee Smith Jr.

UNLV Theses, Dissertations, Professional Papers, and Capstones

The operatic tenor voice has evolved from a variety of influences. This document identifies four influences involved in the development of the operatic tenor voice and describes their impact on performance practices including the chest voice high C (C5). Modern tenors’ performance practices originate in the nineteenth century ascendance of an Italian singing technique. This particular singing technique achieved popularity when Gilbert Duprez sang the role of Arnold in Rossini’s Guillaume Tell with a do di petto (i.e. from-the-chest) production of sound rather than the mix of falsetto and head voice that was traditional at the time. The role of …


Impact Of Home Hospital Program On Empowerment And Professional Practice Behaviors, Marcille Jo Jorgenson Dec 2011

Impact Of Home Hospital Program On Empowerment And Professional Practice Behaviors, Marcille Jo Jorgenson

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to evaluate the impact of a Home Hospital Clinical Placement program on professional behaviors of nursing staff within the Home Hospital and professional behaviors of baccalaureate nursing students enrolled in the Home Hospital Clinical Placement program. The study used a conceptual model developed and tested by Manojlovich (2003).

The study was a non-experimental, cross-sectional design to compare selected attributes between students enrolled in a Home Hospital Clinical Placement and students enrolled in a traditional clinical placement and between registered nurses with high levels of teaching interaction with home hospital students and registered nurses with …


Bacterial Adherence Of Streptococcus Mutans And Lactobacillus Acidophilus On Poly-Methyl Methacrylate And Thermoplastic Polypropene Used In Orthodontic Retention, Lindsay Ann Pfepper Dec 2011

Bacterial Adherence Of Streptococcus Mutans And Lactobacillus Acidophilus On Poly-Methyl Methacrylate And Thermoplastic Polypropene Used In Orthodontic Retention, Lindsay Ann Pfepper

UNLV Theses, Dissertations, Professional Papers, and Capstones

Retention is required in the majority of orthodontic patients throughout the remainder of their life. The two primary removable appliances are known as the traditional Hawley retainer or the vacuum formed retainer. These appliances were developed to maintain the position of the dentition without sacrificing oral health. The orthodontic population is at a higher risk for caries due to plaque accumulation from poor diet, suboptimal oral hygiene and often lack of motivation. These two retainers occupy different niches and are comprised of different materials; therefore the retainers' effect on oral health could be very different. An understanding of which bacteria …