Digital Commons Network^™

Anterior Cruciate Ligament Reconstruction Results In Alterations In Gait Variability, Constantina O. Moraiti, Nikolaos Stergiou, Haris S. Vasiliadis, Eustathios Motsis, Anastasios D. Georgoulis

Journal Articles

Introduction: The temporal structure of gait variability has shown that healthy human gait exhibits long- range correlations and deterministic properties which allow the neuromuscular system to be flexible and adaptable to stresses. Pathology results in deterioration of these properties. We examined structure of gait variability after ACL reconstruction with either BPTB or quadrupled ST/G tendon autografts.

Methods: Six patients with BPTB reconstruction, six with ST/G reconstruction and six healthy controls walked on a treadmill at their self-selected pace. Two minutes of continuous kinematic data were recorded with a 6-camera optoelectronic system. The nonlinear measure of the largest Lyapunov …

Study Of Catalytic Activities Of Nanostructure Copper And Cobalt Supported Zsm-5 Catalysts For Conversion Of Volatile Organic Compounds, Aligholi Niaei, Dariush Salari, Seyed Ali Hosseini

Turkish Journal of Chemistry

This paper reports the comparison of the activities of nanostructure Cu-ZSM-5 and Co-ZSM-5 catalysts for conversion of ethyl acetate and toluene and deals with the relationship between activity and structure of catalysts. The catalysts were characterized by ICP-AES, XPS, EDX, XRD, SEM, and TEM techniques. Catalytic studies were carried out under atmospheric pressure and in a temperature range of 200-500 °C. Cu-ZSM-5 catalysts showed better activity than Co-ZSM-5, revealing higher activity of copper cations. The higher activity was ascribed to higher electro-negativity, smaller cation radius, good distribution, and specific coordination of copper cations inside Cu-ZSM-5 catalysts. The activity of catalysts …

Electro-Oxidation Of Some Non-Steroidal Anti-Inflammatory Drugs On An Alumina Nanoparticle-Modified Glassy Carbon Electrode, Mahla Tabeshnia, Hossein Heli, Ali Jabbari, Ali A. Moosavi-Movahedi

Turkish Journal of Chemistry

The electro-oxidation of mefenamic acid, diclofenac, and indomethacin on glassy carbon and alumina nanoparticle-modified glassy carbon electrodes in a phosphate buffer solution at physiological pH was studied. The techniques of cyclic voltammetry, chronoamperometry, impedance spectroscopy, and steady state polarization measurements were applied. The drugs were irreversibly oxidized on bath electrodes via an anodic peak and the process was controlled by diffusion in the bulk of solution. Alumina nanoparticles increased the oxidation current, and lowered the peak and onset potentials. As such, alumina nanoparticles had an electrocatalytic effect, both kinetically and thermodynamically. The kinetic parameters of heterogeneous electron transfer and diffusion …

Synthesis Of Some Pyridazine Derivatives Carrying Urea, Thiourea, And Sulfonamide Moieties And Their Antimicrobial Activity, Deni̇z S. Doğruer, Şölen Urlu, Ti̇jen Önkol, Berri̇n Özçeli̇k, M. Fethi̇ Şahi̇n

Turkish Journal of Chemistry

Some pyridazine derivatives carrying urea, thiourea, and sulfonamide groups were synthesized and evaluated for their antimicrobial activity against gram-positive and gram-negative bacteria, and fungi by using broth microdilution. The structures of these new compounds were confirmed by ^1H-NMR, mass spectrum, and elemental analysis. The synthesized compounds exhibited generally promising inhibitory activity against S. aureus (MIC ranging from 2 to 4 \mu g/mL) and E. coli (MIC ranging from 4 to 16 \mu g/mL). Moreover, all compounds showed antifungal activity against both C. albicans and C. parapsilosis, with a MIC value of 8 \mu g/mL.

Multichannel Spectrophotometry For Analysis Of Organophosphate Paraoxon In Beverages, Miroslav Pohanka, Jana Zdarova Karasova, Kamil Kuca, Jiri Pikula

Turkish Journal of Chemistry

Multichannel spectrophotometry was performed to assay for paraoxon in spiked beverages. A 96-well microplate was used for this purpose. The measuring protocol was based on inhibition of the enzyme acetylcholinesterase by paraoxon that resulted in decreased or no reaction of the enzyme product thiocholine with Ellman's reagent (5,5'-dithiobis [2-nitrobenzoic acid]). The above assay was practically tested using spiked drinking water, mineral water, and coffee. Analytical parameters such as the limit of detection, time, and sample size consumption were adequate. The limit of detection for beverages ranged from 32 to 48 ppb corresponding to 0.32-0.48 ng of paraoxon in absolute values. …

Re-Evaluating California’S Greenhouse Gas Emission Law: Is It Rational Under The Current Economic Situation?, Hassan Algadi

Theses

This research evaluates the impact of the economic recession on the California Air Resource Board (CARB) strategy for reducing current greenhouse gas (GHG) emissions from motor vehicles. The principle potential contribution of this work is that it evaluated whether the rationale behind the CARB strategy is or is not valid under the current, unanticipated economic recession.

Service Innovation Framework, John Timmerman

Theses

The purpose of this study is to identify critical success factors and important approaches that service companies can utilize in the design of products, services, and programs. It is common for service companies to have design teams that are responsible for facilitating the innovation process. However, these design teams might not benefit from a systematic training and knowledge transfer process. Therefore, it is important to translate critical success factors and important approaches into a model that will serve as a common framework for both training and facilitating the innovation process. Both qualitative and quantitative research approaches were utilized in this …

Rrh Library Newsletter, January 2010, Libraries At Rochester Regional Health

Rochester Regional Health authored publications and proceedings

Newsletter sections include: Patient Identification

A Comparison Of The Effects Of Parental Stressors In Parents Of Diagnosed Versus Undiagnosed Children, Alicia Gomes

Theses and Dissertations

Previous literature has shown that stress can play a major role in family functioning and can be pronounced in families of children with special needs. The purpose of this study is to analyze potential stressors in families of children with special needs to determine whether a diagnosis for a child's medical conditions has any impact on these stressors. Diagnosed and undiagnosed participants were obtained from the National Down Syndrome Society (NDSS), the National Down Syndrome Congress (NDSC), and the Syndromes Without A Name (SWAN) online discussion boards. Participants were solicited with an e-mail providing a link to an online survey …

Interaction Of The Mu-Opioid Receptor With Gpr177 (Wntless) Inhibits Wnt Secretion: Potential Implications For Opioid Dependence., Jay Jin, Saranya Kittanakom, Victoria Wong, Beverly A S Reyes, Elisabeth J Van Bockstaele, Igor Stagljar, Wade Berrettini, Robert Levenson

Department of Neurosurgery Faculty Papers

BACKGROUND: Opioid agonist drugs produce analgesia. However, long-term exposure to opioid agonists may lead to opioid dependence. The analgesic and addictive properties of opioid agonist drugs are mediated primarily via the mu-opioid receptor (MOR). Opioid agonists appear to alter neuronal morphology in key brain regions implicated in the development of opioid dependence. However, the precise role of the MOR in the development of these neuronal alterations remains elusive. We hypothesize that identifying and characterizing novel MOR interacting proteins (MORIPs) may help to elucidate the underlying mechanisms involved in the development of opioid dependence. RESULTS: GPR177, the mammalian ortholog of Drosophila …

The Role Of Chemotherapy In The Management Of Newly Diagnosed Brain Metastases: A Systematic Review And Evidence-Based Clinical Practice Guideline., Minesh P Mehta, Nina A Paleologos, Tom Mikkelsen, Paula D Robinson, Mario Ammirati, David W Andrews, Anthony L Asher, Stuart H Burri, Charles S Cobbs, Laurie E Gaspar, Douglas Kondziolka, Mark E Linskey, Jay S Loeffler, Michael Mcdermott, Jeffrey J Olson, Roy A Patchell, Timothy C Ryken, Steven N Kalkanis

Department of Neurosurgery Faculty Papers

TARGET POPULATION: This recommendation applies to adults with newly diagnosed brain metastases; however, the recommendation below does not apply to the exquisitely chemosensitive tumors, such as germinomas metastatic to the brain.

RECOMMENDATION: Should patients with brain metastases receive chemotherapy in addition to whole brain radiotherapy (WBRT)? Level 1 Routine use of chemotherapy following WBRT for brain metastases has not been shown to increase survival and is not recommended. Four class I studies examined the role of carboplatin, chloroethylnitrosoureas, tegafur and temozolomide, and all resulted in no survival benefit. Two caveats are provided in order to allow the treating physician to …

The Role Of Surgical Resection In The Management Of Newly Diagnosed Brain Metastases: A Systematic Review And Evidence-Based Clinical Practice Guideline., Steven N Kalkanis, Douglas Kondziolka, Laurie E Gaspar, Stuart H Burri, Anthony L Asher, Charles S Cobbs, Mario Ammirati, Paula D Robinson, David W Andrews, Jay S Loeffler, Michael Mcdermott, Minesh P Mehta, Tom Mikkelsen, Jeffrey J Olson, Nina A Paleologos, Roy A Patchell, Timothy C Ryken, Mark E Linskey

Department of Neurosurgery Faculty Papers

QUESTION: Should patients with newly-diagnosed metastatic brain tumors undergo open surgical resection versus whole brain radiation therapy (WBRT) and/or other treatment modalities such as radiosurgery, and in what clinical settings? Target population These recommendations apply to adults with a newly diagnosed single brain metastasis amenable to surgical resection. Recommendations Surgical resection plus WBRT versus surgical resection alone Level 1 Surgical resection followed by WBRT represents a superior treatment modality, in terms of improving tumor control at the original site of the metastasis and in the brain overall, when compared to surgical resection alone. Surgical resection plus WBRT versus SRS +/- …

The Political Economy Of American Indian Allotment Revisited, Matthew T. Gregg, D. Mitchell Cooper

Business Faculty Publications

This paper criticizes McChesney's (1990) hypothesis that the decisions to initially and subsequently terminate American Indian allotment were based on the Bureau of Indian Affairs’ (BIA) interest to inflate their budget. By adopting a richer database on the BIA appropriations from 1877-1945 and correcting for model specification problems, I find no empirical evidence supporting any of McChesney's hypotheses concerning the bureaucratic demand for regulatory change. In fact, other large budgetary items, such as New Deal relief funding, Court of Claims judgments, and educational spending, crowded out BIA land management appropriations over these years. Interestingly, a cursory overview of this period …

Supporting Muslim Students In Secular Public Schools, Candace Schlein, Elaine Chan

Department of Teaching, Learning, and Teacher Education: Faculty Publications

This article discusses the findings of a study examining the challenges and opportunities of supporting Muslim students in secular public schools. Education is explored as a multifaceted interplay between home and family life, community resources, school programs and policies, and classroom lessons to investigate the curricular experiences of Muslim students in North America. In particular, this study focuses on data gathered through interviews, informal conversations, and participant observations to draw a narrative case study of a female, Bangladeshi, Muslim student attending a comprehensive elementary and middle school. The study explores tensions and growth among this Muslim student, her parent, and …

Education In The New Latino Diaspora, Edmund T. Hamann, Linda Harklau

Department of Teaching, Learning, and Teacher Education: Faculty Publications

In 2002 Hamann, Wortham, and Murillo noted that many U.S. states were hosting significant and often rapidly growing Latino populations for the first time and that these changes had multiple implications for formal schooling as well as out-of-school learning processes. They speculated about whether Latinos were encountering the same, often disappointing, educational fates in communities where their presence was unprecedented as in areas with a longstanding Latino presence. Only tentative conclusions could be provided at that time since the dynamics referenced were frequently novel and in flux.

In this chapter we revisit their inquiry in light of six subsequent years …

Investigating An Optimal Decision Point For Probability Bounds Analysis Models When Used To Estimate Remedial Soil Volumes Under Uncertainty At Hazardous Waste Sites, Charles O. Dankwah

Walden Dissertations and Doctoral Studies

Hazardous waste site remediation cost estimation requires a good estimate of the contaminated soil volume. The United States Environmental Protection Agency (U.S. EPA) currently uses deterministic point values to estimate soil volumes but the literature suggests that probability bounds analysis (PBA) is the more accurate method to make estimates under uncertainty. The underlying statistical theory is that they are more accurate than deterministic estimates because probabilistic estimates account for data uncertainties. However, the literature does not address the problem of selecting an optimal decision point from the interval-valued PBA estimates. The purpose of this study was to identify the optimal …

The Impact Of Stakeholder Collaboration On Effectiveness Of Health Program Implementation In Ghana, Samuel Kwami Agbanu

Walden Dissertations and Doctoral Studies

Healthcare providers increasingly recognize the importance of collaboration among stakeholders in cost-effective healthcare delivery. While collaborative relationships offer great advantages, little research has addressed their relevance in an international development aid context, particularly in sub-Saharan Africa. The region is a major recipient of international development support, yet health indicators on HIV/AIDS, malaria, tuberculosis, and child and maternal mortality indicate the health of the region is among the weakest worldwide. This sequential mixed method, descriptive study of a USAID-funded community health program in Ghana examined the nature of collaboration among six stakeholders and impact of this collaboration on effectiveness of program …

A Qualitative Study Of Bariatric Patients And Their Social And Emotional Experiences After Surgery, Denise Hall

Walden Dissertations and Doctoral Studies

Previous research has indicated that the majority of individuals who undergo bariatric surgery have histories of psychological disorders. Only a paucity of research has examined the social and emotional effects of bariatric surgery on patients. Using Kelly's personal construct theory as the conceptual framework, this phenomenological study was designed to gain more insight into how this life-altering bariatric surgery transforms patients socially and emotionally. Fifteen participants who had undergone bariatric surgery in the past 10 years were interviewed for the study. The interviews were transcribed and coded. Similar themes found within the interviews were identified as the primary themes of …

The Mediating Role Of Psychological Distress In The Relationship Between Adverse Childhood Experiences And Adult Smoking, Tara Wynn Strine

Walden Dissertations and Doctoral Studies

While research has indicated that impaired mental health partially mediates the relationship between adverse childhood experiences (ACEs) and alcohol and illicit drug use, little research has examined potential mediators in the relationship between ACEs and smoking, the number one cause of preventable mortality in the United States. Accordingly, this study examined the potential mediating effect of psychological distress on the relationship between ACES and smoking using data from Wave II of the ACE Study, a cross-sectional study completed between June and October of 1997 on a sample of adult health maintenance organization members (N = 7,211). The theoretical underpinnings for …

Immigration And Obesity In African American Adults Residing In The United States, Julius N. Ade

Walden Dissertations and Doctoral Studies

Obesity increases risk for heart disease, hypertension and other chronic diseases, and it affects minority ethnic groups disproportionately. However, it is unknown if African American immigrant adults, an increasing segment of the population, are at higher risk for obesity than African American non-immigrant adults residing in the United States. This study examined the association of obesity and immigrant status by comparing African American immigrant adults now residing in the United States to the general population of African American adults. The socio-ecological model provided the conceptual framework for this study. This study used a cross-sectional quantitative self-administered web-based survey to collect …

The Effect Of Breastfeeding On The Bmi Of Hispanic Preschool Children, Linda M. Kilby

Walden Dissertations and Doctoral Studies

The American Academy of Pediatrics and World Health Organization recommend exclusive breastfeeding for the first 4-6 months of life to reduce risk of obesity in pre-school children. Previous research has indicated a high rate of obesity among Hispanic children in the northeastern United States. There is also a gap in the literature regarding the effectiveness of exclusive breastfeeding in preventing obesity among preschool Hispanic children. Therefore, the purpose of this study was to determine if there was an association between exclusive breastfeeding and obesity among pre-school Hispanic children enrolled in the Special Supplemental Nutrition Education Program for Women, Infants and …

National Survey On Equine Assisted Therapy: An Exploratory Study Of Current Practitioners And Programs, Patricia J. Mcconnell

Walden Dissertations and Doctoral Studies

Equine facilitated psychotherapy (EFP), a new field in psychology, is an alternative method of therapy that uses horses to facilitate therapeutic outcomes. There is minimal peer reviewed literature and few published studies examining efficacy. The conceptual lens of this study was grounded theory, as there is insufficient evidence of theoretical frame-works guiding equine assisted therapy. The purpose of this exploratory concurrent mixed methods study was to examine the theoretical foundation of practitioners; program make up; client populations; efficacy of program; and why the horse serves as the therapeutic catalyst of this model. A 43-item survey was sent to 800 programs, …

Incarcerated Adults Sentenced In Adult Criminal Court While Juveniles: Knowledge, Understanding, And Perceptions Of Their Sentences, Karen Miner-Romanoff

Walden Dissertations and Doctoral Studies

An estimated 200,000 juveniles are tried as adults yearly and receive punitive sentences intended to deter juvenile crime and increase public safety. Few qualitative studies on juveniles sentenced as adults and contradictory results indicate a need for further research. This study used a qualitative, phenomenological interpretive design, with the conceptual frameworks of general and specific deterrence and rational choice theories. In-depth interviews took place with 12 incarcerated adults serving sentences (24--540 months) for juvenile crimes. The research questions explored their knowledge of transfer laws and adult sentencing and perceptions of deterrence from future criminal activity. Coding of transcripts and audio …

The Use Of Human Patient Simulators To Enhance The Clinical Decision Making Of Nursing Students, Sharon Kay Powell-Laney

Walden Dissertations and Doctoral Studies

One of the newest teaching modalities in nursing education is the use of human patient simulators (HPS). An HPS simulation scenario creates a software program vignette in which students interact with a manikin to practice caring for critical patients in a risk-free environment. Although used extensively in schools of nursing, there is little research that examines if these expensive simulators improve the clinical decision-making ability of nursing students. The purpose of this experimental differentiated treatment study was to assess if HPS technology leads to increased clinical decision-making ability and clinical performance more than the teaching modality of a paper and …

Manual Handling Workload And Musculoskeletal Discomfort Among Warehouse Personnel, Terrance N. Knox

Walden Dissertations and Doctoral Studies

Work-related musculoskeletal disorders (WRMSD), specifically physical and muscular discomfort in the upper arm, lower arm, thigh, lower leg, wrist, shoulders, back, or neck, are among the most frequently reported workplace injuries in the United States. The dearth of knowledge about the types of workloads that may contribute to the development of WRMSD was the impetus of this research. The study aimed to identify antecedents of WRMSD among warehouse workers in order to reduce WRMSDs and increase productivity as expressed in a systems perspective on industrial health. The research questions examined the prevalence of specific WRMSDs, the relationship of high-risk tasks …

Social Capital Variables As Predictors Of Hiv Risk-Taking Behaviors Among Sub-Saharan African Immigrants In The United States, Gbadebo Ogundiran Ogungbade

Walden Dissertations and Doctoral Studies

Vulnerable populations, including immigrants, are often at risk for human immunodeficiency virus (HIV) infection because of their risk-taking behaviors. This study investigated risk-taking behavior for HIV infection among Sub-Saharan African (SSA) immigrants in United States. Using social capital as a theoretical foundation, the study aimed to address the question, is there any association between social capital assets of educational opportunity, employment, and eligibility for social assistance and HIV risk-taking behavior, defined as condom use before sex (CUBS) among SSA immigrant in the U.S? Potential participants were recruited through religious and social organizations in a southwestern US state. The survey generated …

Confidence-Based Assessment In Moodle: Insights From Teachers, Administrators, And Programmers, Timothy P. Florian

Walden Dissertations and Doctoral Studies

Critical thinking is a skill that school systems are trying to develop in their student populations. Numerous studies have been conducted on developing critical thinking skills such as self-regulation, interpretation, and analysis. However, available data on the use of learning management systems (LMS) as a means to develop critical-thinking skills have been opaque. This study examined the perceptions of local stakeholders and the impact of confidence-based assessment (CBA) on secondary students at one high school. The conceptual framework guiding the study represented a synthesis of theoretical perspectives on critical thinking and its development with the current research on the pedagogical …

A Phenomenological Inquiry Of Chronic Homeless Individuals' Challenges To Independence, Dewana Hall

Walden Dissertations and Doctoral Studies

Homelessness is a comprehensive social problem affecting approximately 744,000 people in the U.S. Despite consistent efforts from politicians, state and local leaders, and service providers, the number of homeless people continues to rise. Although there are some explanations in the literature to account for the increase of homelessness, the literature tends to not include the voices of the homeless themselves. The purpose of this phenomenological study, which used Maslow's hierarchy of needs as its conceptual framework, was to understand the life experiences of members of the homeless population, as perceived by four male residents of a mission in an eastern …

Perceived Attributes And Organizational Support Influencing Course Management System Adopter Status In Historically Black Colleges And Universities, Gayla Spooner Keesee

Walden Dissertations and Doctoral Studies

The rapid growth of online learning fueled by technologies including course management systems (CMS) has transformed the traditional educational landscape. Little research shows why faculty members at Historically Black Colleges and Universities (HBCUs) have been slow to adopt this new teaching paradigm. This quantitative, nonexperimental study utilized Rogers's diffusion of innovation theory as the theoretical base. Research questions explored faculty perceptions of the CMS's attributes (relative advantage, compatibility, complexity, trialability, observability) and organizational support (policies, procedures, and norms) in order to predict adopter status. The study used a convenience sample of 137 full-time faculty from 3 public and 2 private …

Toward A Grounded Theory On The Management Of Orphanages In South Africa And Zimbabwe, Anna Siyavora

Walden Dissertations and Doctoral Studies

The number of orphaned children in many parts of Africa is increasing as their parents die from human immunodeficiency virus (HIV) or acquired immune deficiency syndrome (AIDS). The research problem addressed in this qualitative study was lack of understanding by others about how the managers of orphanages in 2 African countries -- South Africa and Zimbabwe - were responding to the emotional and social needs of these orphans. The purpose of this study was to develop an orphanage management theory or model that could replicate the African kinship environment in the orphanages under study. Nurturing leadership theory provided the conceptual …