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2014

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Defect Characterization In 4h Silicon Carbide Bulk Crystals And Epilayers, Fangzhen Wu Dec 2014

Defect Characterization In 4h Silicon Carbide Bulk Crystals And Epilayers, Fangzhen Wu

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

4H silicon carbide (4H-SiC) has been accepted as an optimal semiconductor that can substitute for silicon for fabricating advanced power devices for high temperature, high power, and high frequency applications, owing to its outstanding properties such as wide bandgap, high breakdown electric field, high saturation drift velocity and high thermal conductivity. Developments in advanced growth techniques for both 4H-SiC bulk crystals and epilayers have led to an era of large wafer sizes and relatively low defect densities, and these achievements are partly attributed to extensive and careful studies of different kinds of defects in this material. In turn, high crystal …

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Numerical Modeling And Combustion Studies Of Scramjet Problem, Ying Xu Dec 2014

Numerical Modeling And Combustion Studies Of Scramjet Problem, Ying Xu

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

Physical and numerical modeling of turbulent mixing and turbulent combustion in a Scramjet combustion chamber is studied. A high-order finite volume scheme is applied to the flow, accompanied with dynamic subgrid-scale model and local averaging procedure to account for the effect of unresolved small length scales turbulent fluid behavior. The Arrhenius law kinetic mechanism is applied to describe the nonlinearity of chemical reactions. To model combustion, the finite rate chemistry is developed to characterize the combustion process inside the combustion chamber. Results are compared among the finite rate model, the flamelet model/progress variable approach adopted by Stanford PSAAP center and …

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Analysis And Design Of Thermal Management System For Thermoelectric Generators For Nuclear Power Plant Safety, Chih-Chieh Lin Dec 2014

Analysis And Design Of Thermal Management System For Thermoelectric Generators For Nuclear Power Plant Safety, Chih-Chieh Lin

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

This project aims to develop thermoelectric generators (TEG)-based devices for sensing during normal and off-normal conditions in Small Modular Reactors (SMRs). Locations such as reactor core vessels, steam generators, housings of pumps, heat exchangers, and steam pipe housings in primary loop and secondary loop are potential installation sites. The heat is conducted through an adaptor to the TEGs and removed by a heat sink by means of natural convection. The electrical power generated by the TEGs is then used to drive sensors and wireless communications. Additional power can be stored in batteries or in super capacitors for emergency operations. The …

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A Cultural Trade? Canadian Magazine Illustrators At Home And In The United States, 1880-1960, Shannon Jaleen Grove Dec 2014

A Cultural Trade? Canadian Magazine Illustrators At Home And In The United States, 1880-1960, Shannon Jaleen Grove

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

This dissertation analyzes nationalisms in the work of Canadian magazine illustrators in Toronto and New York, 1880 to 1960. Using a continentalist approach--rather than the nationalist lens often employed by historians of Canadian art--I show the existence of an integrated, joint North American visual culture. Drawing from primary sources and biography, I document the social, political, corporate, and communication networks that illustrators traded in. I focus on two common visual tropes of the day--that of the pretty girl and that of wilderness imagery. Through visual and verbal rhetoric, and through institutional controls to exclude particular kinds of illustration from counting …

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Cpi-613, A Non-Redox Active Lipoic Acid Analog, Causes Hyper-Phosphorylation Of Bckdc E1Α In H460 Lung Cancer Cells In Vitro, Michael Simon Dahan Dec 2014

Cpi-613, A Non-Redox Active Lipoic Acid Analog, Causes Hyper-Phosphorylation Of Bckdc E1Α In H460 Lung Cancer Cells In Vitro, Michael Simon Dahan

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

The production of lipids and proteins for growth, as well as nucleotides for the replication of the genome, are key requirements that loom as importantly as the need for the production of energy in the transformed metabolic state of cancer cells. The remodeling of the TCA cycle (extensive anaplerosis and cataplerosis) reflects this need for biosynthetic macromolecules. CPI-613, a non-redox active lipoic acid analog that has been shown to selectively increase phosphorylation of the pyruvate dehydrogenase (PDH) E1 α subunit, thereby inactivating the entire complex, was investigated for its role in causing phosphorylation of the branched-chain amino acid dehydrogenase complex …

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Identification Of Binding Partners With The Negatively Charged Zip1 C-Terminus Using A Two-Hybrid Screen, Matthew Murray Dec 2014

Identification Of Binding Partners With The Negatively Charged Zip1 C-Terminus Using A Two-Hybrid Screen, Matthew Murray

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

Recombination is an essential meiotic process to ensure proper chromosome distribution. Recombination is promoted by the synaptonemal complex, a structure which bridges two pairs of homologous sister chromatids, bringing them into close proximity. The synaptonemal complex is formed by condensation of the sister chromatids on protein cores called axial elements. Homologous axial elements are then held together in budding yeast by a protein called Zip1. Zip1 is part of the ZMM group of proteins that work together during meiosis to promote the formation of crossovers which are distributed throughout the genome by interference. Four phosphorylation sites have been identified in …

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The Versatile Applications Of 6-Alkynyl Fucose And Other Fucose Analogs In Studying Protein Fucosylation, Esam Al-Shareffi Dec 2014

The Versatile Applications Of 6-Alkynyl Fucose And Other Fucose Analogs In Studying Protein Fucosylation, Esam Al-Shareffi

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

Glycosylation is the modification of a target molecule with carbohydrate. It is a common and complex co- or post-translational protein modification that is responsible for diverse and essential biological roles including cellular communication, modulation of function, and the provision of specific ligands for carbohydrate-binding proteins. Fucosylation is a specific type of glycosylation that results from the transfer of fucose, a unique monosaccharide with the L-configuration, to its target proteins or glycans through the action of fucosyltransferases. Thirteen fucosyltransferases have been identified, including protein O-fucosyltransferases 1 and 2 (POFUT1 and POFUT2), responsible for addition of fucose to the hydroxyl group of …

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Synthesis And Characterization Studies Of Li-Fe-In-(Po4) Phases: Chemical Relatives Of Battery Cathode Material Lithium Iron Phosphate, Michael Richard Saccomanno Dec 2014

Synthesis And Characterization Studies Of Li-Fe-In-(Po4) Phases: Chemical Relatives Of Battery Cathode Material Lithium Iron Phosphate, Michael Richard Saccomanno

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

Lithium iron(II) phosphate, also known as lithium ferrophosphate (LiFePO4, LFP), has been the subject of many recent energy storage studies. As a battery cathode material, LFP has many advantages for commercial applications. Compared to its competitors like LiMn2O4 and the ubiquitous but carcinogenic LiCoO2, LFP (specific energy = 600 Wh/kg) exhibits low toxicity, low cost, good thermal stability, and excellent electrochemical performance at high charge/discharge rates. As part of the efforts to understand and improve LFP, a great amount of research has been committed towards developing, characterizing, and electrochemically testing chemical relatives of …

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The Impact Of Children With And Without Developmental Disabilities On Relationship Satisfaction And The Parenting Alliance, Caitlin E. Walsh Dec 2014

The Impact Of Children With And Without Developmental Disabilities On Relationship Satisfaction And The Parenting Alliance, Caitlin E. Walsh

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

Studies have shown that parents of children with ASD report greater negative impact of the child on family adaptation including financial stability, sibling relationships, and parents' social lives than parents of children with other chronic problems (e.g. | Down syndrome, ADHD, ODD). Parents of children with ASD also report increased marital discord and parent stress. Currently there are no studies examining differences in parent perceptions of child impact and how this factor may influence parental relationships, particularly parents' spousal relationships and agreement on co-parenting. In this study, 157 mothers of children with an Autism Spectrum Disorder (ASD), Down syndrome (DS), …

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Evidence For Genetic Contributions To Neurobehavioral Traits: Trait Fear/Fearlessness, Behavioral Inhibition, And The Late Positive Potential, Anna Ef Weinberg Dec 2014

Evidence For Genetic Contributions To Neurobehavioral Traits: Trait Fear/Fearlessness, Behavioral Inhibition, And The Late Positive Potential, Anna Ef Weinberg

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

Psychiatric disorders are the most common and costly forms of disease and injury worldwide. Despite this, our ability to accurately identify and treat these disorders is limited, due in part to deficient understanding of the underlying mechanisms of dysfunction. The current study aimed to identify genetically-influenced neurobehavioral traits--individual differences evident in both self-report and neural response--that might help improve classification and treatment of mental disorders. Results from event-related potential (ERP) components sensitive to emotional content demonstrated that a) neural processing of emotional content is heritable, b) the heritable traits of heightened trait fear and behavioral disinhibition are associated with unique …

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Distributed Estimation In The Presence Of Correlation, Zhiyuan Weng Dec 2014

Distributed Estimation In The Presence Of Correlation, Zhiyuan Weng

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

We study the problem of distributed estimation, where a group of nodes are required to cooperate with each other to estimate some parameter of interest from noisy measurements without a fusion center. Distributed estimation algorithms are useful in several areas, including wireless sensor networks, where robustness, scalability, flexibility, and low power consumption are desirable. In this dissertation, we mainly focus on the cases where the node measurements are correlated. First, we consider the problem of fusing multiple estimates from different nodes. Cases of both known and unknown correlation are investigated. A Bayesian approach and a convex optimization approach are proposed. …

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Disability And The Young Adult Reader: How Has The Portrayal Of Disability Changed In The Last Fifty Years?, Sharon Munroe Hinkson Dec 2014

Disability And The Young Adult Reader: How Has The Portrayal Of Disability Changed In The Last Fifty Years?, Sharon Munroe Hinkson

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

Literature offers an opportunity to share in the lived experiences of others, experiences that as readers we may otherwise never personally encounter. Disability in our society is a reality, yet one that has not been fully embraced--not unlike issues with race, gender, age, or sexual orientation. Individuals begin to encounter many of these matters early in life, but as impressionable adolescents, a time when they begin to understand and navigate the world, often times they meet these experiences in books. Since books are an especially important part of how thoughts and attitudes are shaped, this paper seeks to analyze a …

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Representations Of Disability In Of Mice And Men And One Flew Over The Cuckoo's Nest: Avoiding Handicapism In The Classroom, Lyndsay L. Mccabe Dec 2014

Representations Of Disability In Of Mice And Men And One Flew Over The Cuckoo's Nest: Avoiding Handicapism In The Classroom, Lyndsay L. Mccabe

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

In this thesis, I examine two novels that feature characters with disabilities and that are often taught in secondary English classes. These texts will be analyzed through a disability studies perspective - a form of analysis that is not often taught in schools. The disability studies perspective involves looking at disability in a critical light and examining the social, cultural, and political ramifications of assumptions that are made about those considered to be " disabled" by the able-bodied majority. Using this lens, I will explore the assumptions about disability that seem to be represented in these works through their use …

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American Masculinity And Home In Antebellum Literature, Derek Scott Mcgrath Dec 2014

American Masculinity And Home In Antebellum Literature, Derek Scott Mcgrath

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

The conventional argument in literary and gender studies of nineteenth-century United States culture has been that the home was women's claimed sphere of influence, whereas men were excluded from the home because of their economic, cultural, and societal commitments to the public sphere. Even as Catharine Beecher, Lydia Maria Child, Sarah Josepha Hale, and other adherents to a conservative domestic ideology closely associated the private sphere with women, these same writers identified specific roles and spaces that they expected men to occupy in the home. Hardly only a woman's domain, the home was a powerful force in motivating constructions of …

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Is There Room For The Modern Narrator? A Study Of Narrative Intrusion In Henry James' The Golden Bowl, Rachael Pompeii Dec 2014

Is There Room For The Modern Narrator? A Study Of Narrative Intrusion In Henry James' The Golden Bowl, Rachael Pompeii

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

At the turn of the twentieth century, narrative presentation saw one of the most intense transitionary movements in literary history. The instructive, omniscient authorial narrator of Victorian literature slowly faced demise as an increasing turn towards subjective, stream-of-consciousness narration dominated the literary age of twentieth century modern realism. The critical and fictional work of Henry James, literary genius who wrote across the century line, persists in the presentation of a distinctive narrating body at the same time that it encourages and anticipates the incipient effacement of such a figure. In his final completed novel, The Golden Bowl, James' narrative choices …

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God's Involvement In American Politics (A Brief History And Present), Michael Reich Dec 2014

God's Involvement In American Politics (A Brief History And Present), Michael Reich

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

There are myriad ways God has been included in modern American politics, but where does that inclusion stem from? The parallels between the Bible, American history, and modern day American politics are numerous. Once it can be seen that God has always been essential to America, and God has always been necessary to most Americans, we can find more avenues to identify God's roots in American political discourse and political activism, and legal literature. God is foremost necessary in the Bible and that idea was brought forth into the realm of American politics. He means everything and is everything to …

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" Bienvenido Al Vecindario" : Inserting Spanglish Nonwords Into English Versus Spanish Phonological Neighborhoods., April Pufahl Dec 2014

" Bienvenido Al Vecindario" : Inserting Spanglish Nonwords Into English Versus Spanish Phonological Neighborhoods., April Pufahl

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

If speech perception and production share lexical representations, then properties of these representations should have similar effects in both modalities. Likewise, if the system supporting lexical processing is fundamentally the same regardless of the language implemented, then a given property should produce the same effect across all languages. However, previous research suggests cross-modal and cross-linguistic differences for one property: phonological neighborhood density, a measure of the number of similar-sounding words in a language. These studies have relied on existing words, affording little control over the numerous, and possibly confounding, properties associated with each word. To avoid these potential pitfalls, I …

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Polymodal Grain-Size Modes In Long Island Sands, Silts, And Weathered Bedrock, Courtney Anne Melrose Dec 2014

Polymodal Grain-Size Modes In Long Island Sands, Silts, And Weathered Bedrock, Courtney Anne Melrose

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

The purpose of this study is to determine if grain size modes already present in weathered bedrock sediments can be retained and inherited in derived, or processed sediments. To test this theory, weathered bedrock sediment, as well as Cretaceous aged sands and silts, Glacial sands and silts, Loess-like silt sediment, and glacially transported granitic gneisses were collected and analyzed for grain size. This study is based on the implicit assumption that grain size modes are indicative only of process, and are not reflective of modes present in the parent material of the sediment. A distinct pattern of grain size modes …

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The Blues Continuum: New York Calls - Naples Responds, Alessandro Buffa Dec 2014

The Blues Continuum: New York Calls - Naples Responds, Alessandro Buffa

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

My dissertation traces a form of call and response between New York City and Naples in the 1970s and 1980s. It foregrounds the importance of the `blues' in the traffic of sound, images and oppositional ideas between these two cities located on the same geographical parallel. The blues here is understood as a musical style and feeling, as well as an affect of trauma, loss, memory and an intimate relationship that artists and activists established with their city spaces in the age of the so called " urban crisis." It proposes a " blutopia," based on utopian/dystopian tensions that promote …

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Molecular Mechanisms For Specific Kinase Inhibitors And Kinase Promiscuity Towards Inhibitors, George Georghiou Dec 2014

Molecular Mechanisms For Specific Kinase Inhibitors And Kinase Promiscuity Towards Inhibitors, George Georghiou

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

Dysregulated kinase activity is implicated in a wide variety of diseases because of the central role of kinases in many cell signaling pathways. Currently all small molecule kinase inhibitors used clinically target the ATP-binding pocket, which is highly conserved among all kinases due to their common use of ATP. This high degree of conservation makes the pharmacological targeting of individual kinases difficult. However, it has been achieved with several drugs, the most famous of these being the Abl kinase inhibitor imatinib (Gleevec, Novartis). While a number of broad-spectrum kinase inhibitors are in clinical use, specific kinase inhibition is favorable to …

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Thalamocortical Input To The Primary Visual Cortex, Michelle Kloc Dec 2014

Thalamocortical Input To The Primary Visual Cortex, Michelle Kloc

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

The lateral geniculate nucleus (LGN) is the region of the thalamus that innervates and relays sensory information to the primary visual cortex (V1). Thalamocortical (TC) input from the LGN drives the activity of V1, and underlies the health and function of the visual system. However, little is known about the synaptic properties of this input. LGN inputs innervate two layers, layer 4 (L4) and layer 6 (L6). This input has been examined functionally and anatomically, but the synaptic mechanisms of this input are poorly understood. The anatomy of the projection from the LGN to V1 encumbers the preparation of an …

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Propaedeutic To Philosophy: Dialogue And Truth In Philosophical Practice, Lauren Nelson Hesse Dec 2014

Propaedeutic To Philosophy: Dialogue And Truth In Philosophical Practice, Lauren Nelson Hesse

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

This dissertation advocates a model of dialogue as an approach to education and to philosophical discourse itself that is capable of acknowledging and accommodating the manifold possibilities for human thought. Contemporary philosophy is permeated by a loss of certainty and the increasingly problematic nature of the concept of truth, and the complication of these concepts exposes significant limitations in the ways we conceptualize thought itself. Working in this vein, Gilles Deleuze identifies what he calls an " image of thought," which characterizes the forms we have traditionally allowed thinking to take. His critique of this image, along with its subsequent …

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Questionable Form: An Inquiry Into The Relationship Between Philosophy And Literature, Amir Rauf Alduha Jaima Dec 2014

Questionable Form: An Inquiry Into The Relationship Between Philosophy And Literature, Amir Rauf Alduha Jaima

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

Through a comparative reading of philosophical and literary texts, I examine the distinction between the projects and practices of philosophy and literature. I argue that, like philosophy, novels make arguments and explicitly engage the range of philosophical questions; and like literature, essential elements of philosophy include aesthetic considerations. Moreover, the presumed distinction between philosophy and literature does a disservice to both. If we overlook the literary qualities of philosophy, we risk relegating to the margins important contributions to traditional philosophical problems; and if we overlook the philosophical qualities of literature, we risk passing over some of the most profound elements …

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The Placiality Of Thought, Brian A. Irwin Dec 2014

The Placiality Of Thought, Brian A. Irwin

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

All experience is embodied and, concomitantly, all experience is emplaced. It follows that abstract thought, as a mode of experience, is always emplaced. In what sense is this the case? Following the insights of Maurice Merleau-Ponty, this dissertation seeks to answer this question. A first key insight comes from Phenomenology of Perception: namely, the suggestion that every thought is a bodily experience, and that abstract thought expresses bodily capacities that, through imagination, enter into realms of the virtual. A second key insight comes from Merleau-Ponty's later philosophy, especially The Visible and the Invisible: this is his account of language as …

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Conflict And Cooperation As Social Responses To Ecological Change, Nicholas A. Seltzer Dec 2014

Conflict And Cooperation As Social Responses To Ecological Change, Nicholas A. Seltzer

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

This dissertation examines ways the environment conditions individual incentives to participate in collective action. I hypothesize that as resources become scarce, individuals are more willing to participate in individually-costly collective action, including intragroup cooperation and intergroup hostility. The first and second of three studies establish a unit-of-selection based, game-theoretic foundation for intergroup conflict. The final study explores macro-level implications for the relationship between climate change and violence in Africa. For human beings and other highly social creatures, cooperation is the key adaptation with which we respond to environmental challenges. Faced with resource scarcity, group living becomes increasingly vital for individual …

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Attachment's Role In Social Support And Mentoring: An Investigation Among Collegiate Women, Alberto Herrera-Alcazar Dec 2014

Attachment's Role In Social Support And Mentoring: An Investigation Among Collegiate Women, Alberto Herrera-Alcazar

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

Recent years have seen a concerted effort to increase the number of women pursuing Science, Technology, Engineering and Mathematics (STEM) fields. Although one approach to retention of undergraduates in STEM fields has been formal mentoring programs, other channels, such as naturally occurring mentor relationships, have served to retain students in science and other disciplines as well. The current project investigated the interplay between attachment representations of close relationships, social support and mentor relationships. The first aim was to examine the relationship between attachment and general facets of social support. The second aim was to assess benefits of mentor relationships on …

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Visual Association Mining Of Multivariate Data, Zhiyuan Zhang Dec 2014

Visual Association Mining Of Multivariate Data, Zhiyuan Zhang

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

The rapid development of information technology produces vast amounts of data with numerous attributes. These multi-dimensional datasets offer tremendous opportunities for studying existing behavioral patterns and for predicting future developments. However, the high-dimensional space exceeds human comprehension. More sophisticated visualization techniques than the arsenal of standard plots are needed. First, we introduce an interactive navigation technique to help the analysts explore within the multi-dimensional data spaces. We employ a network-based interface and pair it with a parallel coordinates plot. In the network interface, the dimensions form nodes that are connected by edges representing the strength of association between dimensions. The …

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Sustainable Access To Education For Southern Sudanese Refugee Children Living In Uganda: A Case Of A Refugee Settlement In Arua District, Amuge Edith Dec 2014

Sustainable Access To Education For Southern Sudanese Refugee Children Living In Uganda: A Case Of A Refugee Settlement In Arua District, Amuge Edith

Master of Education

Education is considered obligatory and indispensable for the central development of all individuals in spite of their political, economic, religious and social affiliations. Yet for the Southern Sudanese refugee children living in Uganda, opportunities to education seem to narrow from one level to another withstanding the fact that the Southern Sudanese Refugee Children consider education their number one priority. The notion that education is a right seems more of a theoretical documentation than a practical execution. This paper explores sustainable access to education for the Southern Sudanese Children living in Uganda. The argument on this paper is that predictions are …

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Examining Teacher Leadership Development In A Government Secondary School In Koboko West-Nile Uganda, Wayi Dragamulai Dec 2014

Examining Teacher Leadership Development In A Government Secondary School In Koboko West-Nile Uganda, Wayi Dragamulai

Master of Education

The ultimate resource of any community is its people and so are the teachers who are a beacon of hope for the future of a school. A case study of examining teacher leadership development in a government secondary school in Koboko District, West Nile Uganda was carried out. This study aimed at determining teacher leadership development opportunities in the school, the factors that enhance and the factors that hamper teacher leadership development in the school. Data collection involved the use of both primary and secondary methods with instruments such as, semi structured interviews, focused group discussion, and document analyses were …

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Lived Experiences Of Lower Secondary School Students In Learning Mathematics In English; A Phenomenological Study Of Ward Secondary Schools In Ukerewe District, Tanzania., Josephat Samwel Dec 2014

Lived Experiences Of Lower Secondary School Students In Learning Mathematics In English; A Phenomenological Study Of Ward Secondary Schools In Ukerewe District, Tanzania., Josephat Samwel

Master of Education

During this era of globalization where the world is like a village, preparation of competent, efficient and competitive graduates is inevitable. Language of instruction is highly regarded as an important factor in the learning process globally and Tanzania in particular. Language, without doubt, plays a pivotal role in facilitating the process of acquisition of knowledge, skills and values by the learners. This study explored the lived experiences of the lower secondary school students’ in learning mathematics in English in ward secondary school in Tanzania. The study used qualitative approach, whereby a phenomenological design was adopted. The study employed two methods …

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