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Pain And Suicide In A Population-Based Sample, Sarra Nazem May 2011

Pain And Suicide In A Population-Based Sample, Sarra Nazem

Graduate Theses, Dissertations, and Problem Reports (ETD)

Previous research suggests that individuals who experience chronic pain are at increased risk for suicidal behaviors. No studies, however, have specifically examined the association between headaches and fatal suicide behavior. Furthermore, it remains unclear whether gender moderates the relation between pain and suicide, and whether the relation is independent of the effects of depression. The present study aimed to characterize the relation between pain (headache, back, shoulder, and neck) and suicide. Data were obtained from two sources in the Swedish Twin Registry. A total of 42,928 individuals responded to headache questions in either 1967 or 1973 for the first data …


An Angler And Creel Survey Of The Walleye (Sander Vitreus ) Fishery At Summersville Reservoir, West Virginia, Dustin Shane Wichterman May 2011

An Angler And Creel Survey Of The Walleye (Sander Vitreus ) Fishery At Summersville Reservoir, West Virginia, Dustin Shane Wichterman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Catch and harvest information and angler attitudes are important for management of the walleye fishery of Summersville Reservoir, WV, especially given previous estimates of high harvest proportions and low growth rates of walleyes. I used data from angler and creel surveys from November 28, 2008-October 31, 2009 to estimate monthly catch rates, harvest rates, total effort, and total catch of walleyes. Estimates were partitioned by boat anglers, bank anglers, anglers targeting walleyes, and all anglers. Also, angler attitudes were documented for fishing trip satisfaction and the sizes of "keepable" and trophy fish. A total of 84 survey days yielded 165 …


Functional Impairments Of College Students With Attention Deficit/ Hyperactivity Disorder And Necessary Modifications For Higher Education, Sylvia A. Wright May 2011

Functional Impairments Of College Students With Attention Deficit/ Hyperactivity Disorder And Necessary Modifications For Higher Education, Sylvia A. Wright

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examines the impact of Attention Deficit/Hyperactivity Disorder (AD/HD) on college age students 18-25 years old. Qualitative research methods, including semi-structured interviews with students and significant others, writing samples and transcript documents, examine functional impairments of students with AD/HD as well as functional impairment impact on relationships, academics and work. This qualitative research, grounded theory, provides a model for future research studies confirming existing theory and provides a basis for new theory.;The conclusion was that functional impairments continue to exist in college age adults with impairments with issues in concentration, organization, time related issues, time management/scheduling and hyperactivity. These …


Immediacy And Gesture, Aaron Anslow May 2011

Immediacy And Gesture, Aaron Anslow

Graduate Theses, Dissertations, and Problem Reports (ETD)

The concepts of immediacy and gesture are described in this thesis and their relation to my ceramic work. This thesis also discusses the historic and contemporary influences that contribute to my work, as well as my personal history, travel, and technical research into different clay bodies, slips, glazes, and firings.


Molecular Mechanisms Of Chromium (Vi) - Induced Toxicity And Carcinogenesis, Djordje Medan May 2011

Molecular Mechanisms Of Chromium (Vi) - Induced Toxicity And Carcinogenesis, Djordje Medan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cr(VI) compounds are redox cycling carcinogens that induce apoptosis as a primary mode of cell death. Since defects in apoptosis regulatory mechanisms are considered to be indispensable foundation of carcinogenesis it is critical to understand the molecular effectors involved. Cellular energy powerhouses, the mitochondria, house the effectors involved in signaling cascades comprising commitment to apoptosis and are reported to be dysregulated in variety of tumors. The objective of this study was to characterize the key signaling effectors in Cr(VI)-induced apoptosis and determine the relationship between those effectors and mode of cellular energy production in cancerous vs. non-cancerous cells. Our data …


A New Member Of The Afap Family, Afap1l1, Binds To Cortactin And Localizes To Invadosomes, Brandi Nicole Snyder May 2011

A New Member Of The Afap Family, Afap1l1, Binds To Cortactin And Localizes To Invadosomes, Brandi Nicole Snyder

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cellular motility and invasion in normal cellular processes and disease states such as cancer are dependent upon the ability of a cell to efficiently interact with its microenvironment, rearrange its cytoskeleton and degrade tissue barriers for purposes of cell movement. The AFAP family of adaptor proteins, AFAP1, AFAP1L1 and AFAP1L2, integrates signals received from the microenvironment into coordinated cytoskeletal changes. While there have been many reports on the functions and binding partners of AFAP1 and AFAP1L2, this work aimed to determine the cellular location and function of newly discovered AFAP1L1. The overall amino acid and protein structures of AFAP family …


Functional Analysis And Post-Transcriptional Regulation Of Oocyte-Specific Transcription Factors During Early Embryogenesis In Cattle, Swamy Krishna Tripurani May 2011

Functional Analysis And Post-Transcriptional Regulation Of Oocyte-Specific Transcription Factors During Early Embryogenesis In Cattle, Swamy Krishna Tripurani

Graduate Theses, Dissertations, and Problem Reports (ETD)

Newborn ovary homeobox (NOBOX) is an oocyte-specific transcription factor essential for folliculogenesis and expression of many germ-cell specific genes in mice. However, the temporal and cell specific expression of NOBOX in bovine oocytes and potential function and regulation of NOBOX in early embryogenesis have not been described previously. Messenger RNA for bovine NOBOX is preferentially expressed in ovaries and undetectable by RT-PCR in somatic tissues examined. NOBOX protein is present in oocytes throughout folliculogenesis and is stage-specifically expressed during oocyte maturation and early embryonic development. Depletion of NOBOX in early embryos demonstrated that NOBOX is an essential maternal derived transcription …


A Chemical Neural Network And Collective Behavior In Globally Coupled Oscillators, Fang Wang May 2011

A Chemical Neural Network And Collective Behavior In Globally Coupled Oscillators, Fang Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

The nervous system controls almost all actions in the body, and understanding its detailed structure and mechanism is one of the great challenges of science. Artificial neural networks have been modeled computationally to solve specific problems such as robot motion; however, few experimental studies have been designed to simulate biological neural networks because of the lack of experimental media with neural-like properties. An experimental network based on the photosensitive Belousov-Zhabotinsky reaction has been developed, in which the local excitability is controlled by light intensity. The spatiotemporal dynamics of these networks has been characterized, including sustained oscillations and collapse to the …


Understanding Cliff Use At The New River Gorge National River: Combining Visitor Observations And Resource Impact Assessments, D. Kyle Olcott May 2011

Understanding Cliff Use At The New River Gorge National River: Combining Visitor Observations And Resource Impact Assessments, D. Kyle Olcott

Graduate Theses, Dissertations, and Problem Reports (ETD)

The New River Gorge National River (NERI) is managed by the National Park Service (NPS). In addition to being an extremely popular destination for whitewater rafting, it is also home to world class rock climbing and an extensive array of cliffs offering over 2400 routes. This thesis is part of a larger study of the cliffs at NERI, funded by the NPS and encompassing botanic and geologic components in addition to the recreation management component. By combining unobtrusive visitor observation methods with GPS mapping and rapid assessment of nearly 450 areas of impact, a few key management recommendations are made …


From Peasant To Pariah: Changing English Perceptions Of The Irish From The 1820s Through The 1860s, Traci J. Scully May 2011

From Peasant To Pariah: Changing English Perceptions Of The Irish From The 1820s Through The 1860s, Traci J. Scully

Graduate Theses, Dissertations, and Problem Reports (ETD)

While the historiography of English perceptions of the Irish in the later period of the Victorian era is extensive, there is a dearth of research in tracing the origins of these perceptions. The connection between England and Ireland dates back centuries, and the relationship was neutral at best and extremely violent at worst. Historians such as L. Perry Curtis have analyzed the mass media of these later decades to argue that the English saw their neighbors as subhuman creatures in the racial hierarchy.;However, this image did not emerge from a single event, but rather evolved over the tumultuous earlier decades …


The Effects Of Parent-Child Interaction Therapy On Symptoms And Impairment In Young Children With Attention-Deficit/Hyperactivity Disorder, Stephanie M. Wagner Jan 2011

The Effects Of Parent-Child Interaction Therapy On Symptoms And Impairment In Young Children With Attention-Deficit/Hyperactivity Disorder, Stephanie M. Wagner

Graduate Theses, Dissertations, and Problem Reports (ETD)

Attention-Deficit/Hyperactivity Disorder (ADHD) is an externalizing disorder beginning in childhood with symptoms and impairment persisting into adulthood for many individuals. Although ADHD is identifiable and diagnostically valid during the preschool years, the majority of the research has focused on treating school-aged children. Some research suggests that behavioral parent training (BPT) programs are efficacious in treating young children. Yet, results are inconsistent and previous research has methodological limitations that restrict interpretations of the data. Parent-Child Interaction Therapy (PCIT), a widely-disseminated evidence-based BPT program for young children with disruptive behavior problems, incorporates components (e.g., in vivo coaching) that may be particularly effective …


De Novo Asymmetric Synthesis Of Biologically Active Carbohydrate Natural Products And Related Sar Studies, Bulan Wu Jan 2011

De Novo Asymmetric Synthesis Of Biologically Active Carbohydrate Natural Products And Related Sar Studies, Bulan Wu

Graduate Theses, Dissertations, and Problem Reports (ETD)

The carbohydrate portion of natural products plays an important role in its biological activity, such as solubility, target binding, tissue targeting, and membrane transportation. Over the last fourteen years, Dr. O'Doherty's group has been developing de novo methodologies to build the desired carbohydrate functionality and stereochemistry within each sugar from simple achiral starting materials in stark contrast to the traditional carbohydrate approach using known sugar isomers as starting materials. The methodologies depend on a highly diasteroselective palladium-catalyzed glycosylation reaction to control the anomeric stereochemistry, and a highly enantioselective Noyori reduction to install the sugar absolute stereochemistry. Appropriate post-glycosylation transformations create …


Development Of Advanced Coal Devolatilization And Secondary Pyrolysis Kinetics Models For Cfd (And Process Simulation) Codes, Kiran Pandurang Chaudhari Jan 2011

Development Of Advanced Coal Devolatilization And Secondary Pyrolysis Kinetics Models For Cfd (And Process Simulation) Codes, Kiran Pandurang Chaudhari

Graduate Theses, Dissertations, and Problem Reports (ETD)

Detailed kinetic expressions for the gasification of a wide variety of coals in existing Computational Fluid Dynamics (CFD) codes such as Multiphase Flow with Interphase Exchanges (MFIX) developed by NETL. These expressions describe the fundamental steps taking place in the gasification of coal, namely, coal devolatilization, tar-gas chemistry, soot formation and the heterogeneous and homogeneous gasification reaction along with combustion reactions. For this purpose, the data generated by PC Coal Lab (PCCL) is used to simulate the gasification of various coals in CFD codes. The CFD code of most interest is MFIX, which is used to describe the hydrodynamics, heat …


Gender Recognition And Appearance Description In Unconstrained Images Of Human Body, Qin Wu Jan 2011

Gender Recognition And Appearance Description In Unconstrained Images Of Human Body, Qin Wu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Gender recognition has many useful applications, ranging from business intelligence, through to image search and social activity analysis. Traditional research on gender recognition focuses on face images in a constrained environment. In this work, we propose a novel problem of gender recognition in articulated human body images acquired from an unconstrained environment in the real world. Our empirical study answers the question of whether gender recognition can be performed in articulated body images, and discovers important issues such as which body parts are informative, how many body parts are needed to combine together, and what representations are good for articulated …


Variances In Diurnal Fatigue Patterns And Mood Among Postpartum Women, Amanda L. Mcbean Jan 2011

Variances In Diurnal Fatigue Patterns And Mood Among Postpartum Women, Amanda L. Mcbean

Graduate Theses, Dissertations, and Problem Reports (ETD)

Postpartum women have highly disrupted sleep and many experience a disruption in their circadian rhythm during this time. They are also susceptible to mood disruptions during the postpartum period. While mood disruption may be a result of sleep disruption, there are not many data to support a link between circadian rhythm disruption and mood among healthy postpartum women. This study sought to fill that gap. Participants were a convenience sample of 71 women from a larger study. The total sample was 26.4 (SD = 4.0) years old, had a mean annual income of {dollar}51,000 (SD = {dollar}35,000), and had 15.7 …


Sensory Evaluation And Quality Indicators Of Nutritionally Enhanced Egg Product With Omega-3 Rich Oils, Helenia Dawn Sedoski Jan 2011

Sensory Evaluation And Quality Indicators Of Nutritionally Enhanced Egg Product With Omega-3 Rich Oils, Helenia Dawn Sedoski

Graduate Theses, Dissertations, and Problem Reports (ETD)

Heart disease is a leading cause of death in the United States. Omega-3 (n-3) fatty acids (FA) positively affect heart health while high levels of cholesterol are an indication of poor heart health. Nutritionally-enhanced low-cholesterol egg sticks fortified with n-3 FA were developed; quality indicators were measured and sensory evaluations were conducted. Store-bought eggs were separated and egg whites were mixed with oil, spray dried egg whites, annatto (color) and salt. The oil sources included: algae, menhaden, flaxseed, and canola oils. Experimental egg batters and mixed whole egg (control) were cooked in the shape of a cheese stick, vacuum packed, …


Associations Between Co-Parenting, Parenting Stress, And Military Deployment, Brittane L. Todd Jan 2011

Associations Between Co-Parenting, Parenting Stress, And Military Deployment, Brittane L. Todd

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to examine the differences in parenting stress and parenting alliance following a military deployment as a function of the level of co-parenting exhibited during deployment. Two co-parenting groups (high and low) were formed based on co-parenting practices during the deployment. A total of 31 participants comprised the sample (High = 16 and Low = 15) and completed the anonymous online surveys including The Co-Parenting Scale, the Parenting Alliance Measure, and the Parenting Stress Index-Short Form. The groups did not differ in the levels of parenting alliance. Additionally, the low co-parenting group did not report …


Work Adjustment Of Survivors Of Tbi: Subjective Reporting And Indicators Of Work Status., Laura Kay Artman Jan 2011

Work Adjustment Of Survivors Of Tbi: Subjective Reporting And Indicators Of Work Status., Laura Kay Artman

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigated the use of self-reported functional limitations to indicate employment status of traumatic brain injury (TBI) survivors after returning to work. This study used data from the Job Accommodation Network (JAN) to examine the utility of self-reported functional limitations in indicating the work status of survivors of TBI. The first research question concerned the most common functional limitation reported by survivors of TBI. The second question asked which functional limitations, if any, could correctly classify the work status of TBI survivors. Results of binary logistic regression suggested that the presence of medical symptoms and emotional dysregulation were reliably …


Deconstructing Disparity: Examining Risk Factors Related To Smoking Among Sexual Minority Populations., John Rudolph Blosnich Jan 2011

Deconstructing Disparity: Examining Risk Factors Related To Smoking Among Sexual Minority Populations., John Rudolph Blosnich

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite a robust, concordant literature demonstrating that lesbian, gay, and bisexual (i.e., sexual minority) populations smoke more than their heterosexual peers, the factors contributing to this disparity are not well understood. Consequently, the main goal of this project and its three component studies was to enhance current understanding of risk factors that contribute to smoking disparities among sexual minority persons. Study 1 details a systematic review of the literature, synthesizing empirical investigations that tested associations of risk factors and correlates of smoking among sexual minority samples. Of the twenty-six studies included in the analysis, most used sexual identity to operationalize …


Microrna Regulation Of Kruppel-Like Factor 4 In Breast Cancer., Chen-Chung Lin Jan 2011

Microrna Regulation Of Kruppel-Like Factor 4 In Breast Cancer., Chen-Chung Lin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Kruppel-like factor 4 (KLF4) is a transcription factor regulating cell growth and differentiation. In normal tissues, Kruppel-like factor 4 (KLF4) is typically expressed in post-mitotic epithelial cells and functions in epithelial cell differentiation. However, in the premalignant dysplastic lesions and invasive cancers of specific human tumor types such as skin cancer and breast cancer, KLF4 mRNA and protein are upregulated in proliferating cells. When KLF4 misexpressed in the basal keratinocytes of mouse skin, KLF4 can rapidly induce neoplastic progression to squamous cell carcinoma-like lesions. Consistent with its preferential expression in post-mitotic cells in vivo, KLF4 is likewise induced upon growth-arrest …


Concurrent Uptake Of Lead, Zinc, Cadmium And Copper And Health Risk Assessments In A Smelter Contaminated Soil., Mimi Roy Jan 2011

Concurrent Uptake Of Lead, Zinc, Cadmium And Copper And Health Risk Assessments In A Smelter Contaminated Soil., Mimi Roy

Graduate Theses, Dissertations, and Problem Reports (ETD)

The study area for this research was a smelter contaminated site in Harrison County, West Virginia. Soils in this site had elevated levels of lead, zinc, cadmium and copper. A multi-step chemical extraction study showed that zinc and cadmium were the most plant available elements while for Pb more than 75% was associated with the residual phase. Standard addition experiments showed readsorption rates less than 25 % for Pb and Cd, and less than 50% for Zn and Cu. Some common garden and residential plants were grown initially to study metal uptake in tissues. Radish, carrot, and chicory showed the …


The Effects Of Expertise And Demographic Characteristics On Public Administrators' Attitudes To E-Government, Raji Msail Alsharari Jan 2011

The Effects Of Expertise And Demographic Characteristics On Public Administrators' Attitudes To E-Government, Raji Msail Alsharari

Graduate Theses, Dissertations, and Problem Reports (ETD)

Due to recent advancements in electronic technology (e-technology), research on the developing field has become important for understanding how this technology affects the population and how the population affects this technology. Research on e-technology reveals that demographic characteristics (age, gender, location, and education) and expertise are factors affecting e-technology attitudes and performance. One of the emerging e-technology fields is electronic government (e-government). After reviewing historical research in e-technology, this study reviewed existing e-government literature to determine key obstacles for public administrators to implement e-government. This study used a survey questionnaire, based on e-government attitude surveys conducted by Moon (2002) and …


Temporal Changes In Soil Carbon Concentration And Quality In A Reclaimed Minesoil Chronosequence, Sriroop Chaudhuri Jan 2011

Temporal Changes In Soil Carbon Concentration And Quality In A Reclaimed Minesoil Chronosequence, Sriroop Chaudhuri

Graduate Theses, Dissertations, and Problem Reports (ETD)

Atmospheric carbon dioxide (CO2) concentrations have increased significantly over the last half century causing erratic changes in global climate and the ecological balance of the earth. With proper land management practices, reclaimed minesoils can act as CO2- sinks, thus contributing to the terrestrial carbon sequestration efforts to mitigate effects of increased atmospheric CO2 concentrations. The objective of this research was to determine temporal changes in soil organic carbon (SOC) geochemistry and contents in a reclaimed minesoil chronosequence. The study area comprised four reclaimed minesoils in Monongalia County, West Virginia, with time since reclamation ranging between 2 to 21 years. A …


Intelligent Reservoir Modeling Of Lower Huron Shale, Ognjen Grujic Jan 2011

Intelligent Reservoir Modeling Of Lower Huron Shale, Ognjen Grujic

Graduate Theses, Dissertations, and Problem Reports (ETD)

The work presented in this thesis is an intelligent reservoir modeling and analysis of Lower Huron Shale in eastern Kentucky. Methodology used for this analysis is a recently developed Top Down Intelligent Reservoir Modeling, that couples artificial intelligence and data mining techniques with conventional reservoir engineering methods. A total of 77 wells completed in Lower Huron Shale in eastern Kentucky were used in this study. Well production data was obtained from the company operating the wells, while completion reports and well logs were downloaded from publicly available database at Kentucky Geological Surveys website. The downloaded well logs were digitized, and …


Contraceptive Effect Of A Vaccine Targeting Leukemia Inhibitory Factor That Is Vital For Implantation, Angela Rae Lemons Jan 2011

Contraceptive Effect Of A Vaccine Targeting Leukemia Inhibitory Factor That Is Vital For Implantation, Angela Rae Lemons

Graduate Theses, Dissertations, and Problem Reports (ETD)

Immunomodulation at the fetal-maternal interface is essential for the establishment and maintenance of pregnancy. Several interleukins have been shown to be key in this process. Leukemia inhibitory factor (LIF), a member of the interleukin-6 family of proteins, is vital for blastocyst implantation in both humans and mice. LIF is expressed by the uterine epithelium and stromal cells surrounding the blastocyst prior to implantation and acts via binding to the LIF receptor expressed on the endometrium. This study investigates the contraceptive effect of a vaccine prepared with peptides derived from LIF and LIF receptor in the murine model. The vaccine was …


Surfactants And Digital Alloys For Strain Relief In Iii-Nitride Distributed Bragg Reflectors And Related Heterostructures Via Metal Organic Vapor Phase Epitaxy, Lee Ellen Rodak Jan 2011

Surfactants And Digital Alloys For Strain Relief In Iii-Nitride Distributed Bragg Reflectors And Related Heterostructures Via Metal Organic Vapor Phase Epitaxy, Lee Ellen Rodak

Graduate Theses, Dissertations, and Problem Reports (ETD)

III-Nitride based semiconductors have emerged as one of the promising materials for electronic and opto-electronic devices, including but not limited to, solid state emitters, photodetectors, and transistors. Despite commercial success, several issues ranging from material growth to device fabrication remain unresolved and continue to hinder the efficiency of these devices. One such issue includes strain management in III-Nitride heterostructures. The binary alloys in the (Al,In,Ga)N family are characterized by a large lattice and thermal mismatch which leads to defect formation and cracking within heterostructures. These defects are detrimental to device fabrication and operation. This work investigates growth based techniques to …


Comparison Of Parent-Child Interactions In Abusive And Control Families: An Observational Study, Jocelyn F. O. Stokes Jan 2011

Comparison Of Parent-Child Interactions In Abusive And Control Families: An Observational Study, Jocelyn F. O. Stokes

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study sought to identify differences in caregiver-child interactions between caregivers with and without prior reports of child physical abuse. Data for the abuse group were made available for secondary analyses by the National Archive for Child Abuse and Neglect via Cornell University. Data for the comparison group were collected for a previous study at West Virginia University. For both studies, caregiver-child dyads participated in a 5---minute, videotaped observation in a situation in which the parent had to exert moderate control over the child. Data that had been coded using the Dyadic Parent---Child Interaction Coding System (Eyberg, et al., 1994; …


Emotional Pain And Acute Nociception, Alison M. Vargovich Jan 2011

Emotional Pain And Acute Nociception, Alison M. Vargovich

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined differences and similarities in responses to acute nociception in adults with a significant history of emotional pain relative to matched controls with a significant past positive life experience and a sample of chronic pain patients. Using 28 volunteers who responded to advertisements (n = 14, emotional pain group; n = 14, positive life experience group), and 14 chronic pain patients from a prior study, this investigation utilized measures of pain threshold and tolerance during a laboratory finger pressure pain induction experiment. Each participant experienced two levels of pressure pain (i.e., high and low) and two levels of …


Ecological Benefits Of Mitigation On A Large River Mainstem In An Intensively Mined Appalachian Watershed, Eric Mitchell Miller Jan 2011

Ecological Benefits Of Mitigation On A Large River Mainstem In An Intensively Mined Appalachian Watershed, Eric Mitchell Miller

Graduate Theses, Dissertations, and Problem Reports (ETD)

Large scale surface mining in the central Appalachians causes significant alteration of headwater catchments, and these impacts may be offset through implementation of stream restoration projects. As an example, several habitat enhancement structures (cross-vanes and j-hooks) were constructed along a 13.7 km section of the Little Coal River as mitigation for mining impacts in the region. The objectives of our study were to: 1-quantify changes in channel morphology, habitat quality, sediment composition, bank stability, biological communities and organic matter processing in response to habitat enhancing structures; 2-relate changes in structural and functional attributes of the Little Coal River mainstem to …


Protein Surface Characterization Using An Invariant Descriptor, Zainab Abu Deeb Jan 2011

Protein Surface Characterization Using An Invariant Descriptor, Zainab Abu Deeb

Graduate Theses, Dissertations, and Problem Reports (ETD)

A novel descriptor to characterize protein surfaces, and hence classify functionally similar proteins into functional families is proposed. The descriptor exploits the protein tertiary structure surface, locally and globally, to identify intra-family proteins. By using only sparse data based on the C-alpha atoms on the protein surface, we characterize the surface using different invariant descriptors, namely, distance distributions, residue co-occurrences, and distance-residue co-occurrences between all atoms confined to a particular patch. Using the method, proteins with very low sequence similarity were successfully classified into their functional families with a high degree of accuracy.