6,592 research outputs found
Seroepidemiological studies of herpesvirus-associated diseases of marine turtles: Fibropapillomatosis and lung-eye-trachea disease
We have developed immunological tests that can identify marine turtles in Florida (green and loggerhead) that have been exposed
to the LETV herpesvirus. The seroepidemiological data collected provides critical evidence about the relationship between
infection with the FP-associated herpesvirus and the LETV herpesvirus. The data supports the hypothesis that LETV and FPHV
infections are independent infections of marine turtles. The data shows that wild green turtles in Florida are exposed to the
LETD-associated herpesvirus, which is the first description ofLETV infection in free-ranging marine turtles. To our knowledge,
the antigenic proteins identified in this study are not only the first proteins from a reptilian herpesvirus to be cloned and
expressed, but they represent the first reptilian herpesvirus proteins to be identified as immunogenic in their host species. (16 page document
Further strategies for evaluating the etiological role of a tumor-associated herpesvirus in marine turtle fibropapillomatosis
In 1992, an interdisciplinary research team headquartered at the University of Florida
began studies in key targeted areas of fibropapillomatosis (FP) etiology and
pathogenesis. At that time, little was known about FP outside of field studies
documenting its prevalence in different areas of the world and studies of tumor
histopathology. Our primary objective was to develop a broad-based scientific
understanding of FP by applying principles of tumor biology, immunology, pathology,
virology, molecular biology, and epidemiology to FP in the green turtle, Chelonia
mydas. Long-term goals included the development of assays for FP and study of any
role of environmental co-factors in the disease. This report is a continuation of that
effort and the results reported here bring us closer to understanding the role of a
tumor-associated herpesvirus in marine turtle fibropapillomatosis.
This research has demonstrated that marine turtle herpesviruses can persist for
extended periods of time as infectious agents in the marine environment and that wild
green turtles in Florida are exposed to the LETD-associated herpesvirus. This is the
first description of LETV infection in free-ranging. marine turtles. In addition, data is
presented that supports the hypothesis that LETV and FPHV infections are
independent. These data reveal new levels of complexity that must be addressed
before reliable serodiagnostic assays for herpesvirus infections of chelonians can be
developed for widespread application. The results reported here also raise new
concerns about the potential impact of infections by new herpesviruses on populations
of wild marine turtles, an area which has previously been unexplored by turtle
biologists. (8 page document
Multiple arterial embolization from left atrial myxoma in a Maltese boy
Atrial myxoma is rare in adults and even rarer in children. In this article the author describes. The presentation may be with embolic, obstructive or constitutional symptoms, which may be dramatic and life-threatening. The case of a 12 year old Maltese boy with left atrial myxoma with multiple simultaneous arterial embolism in upper and lower limbs is described in this article.peer-reviewe
Theoretical investigation of the scope of sequential ligand tuning using a bifunctional scorpionate tris(1,2,4-triazolyl)borate-based architecture
The donor properties of a series of tripodal mixed N-donor/carbene ligands derived through sequential alkylation of hydrotris(1,2,4-triazolyl)borate have been investigated by density functional theory (DFT) methods. The structures of complexes of the form [Mo(L)(CO)3]- were optimized (L = [HB(1,2,4-triazolyl)n(1,2,4-triazol-5-ylidene)3-n]- (n = 0 – 3), hydrotris(pyrazolyl)borate, hydrotris(3,5-dimethylpyrazolyl)borate and hydrotris(imidazol-2-ylidene)borate) and nuCO frequencies for these complexes and partial charges of their Mo(CO)3 fragments were determined. Results show that ligand donation is highly tunable when compared to similar experimentally known ligands with a shift in the symmetric nuCO stretching mode of -39 cm -1 on going from the tris(1,2,4-triazolyl)borate complexes to that of the triscarbene hydrotris(1,2,4-triazol-5-ylidene) and an increase in partial charge (distributed multipole analysis) of the Mo(CO)3 fragment from -0.23 to -0.48
British urban trees: A social and cultural history, 1800-1914
Whether we consider the great London Planes which are now the largest trees in many British urban streets, the exotic ornamentals from across the globe flourishing in numerous private gardens, the stately trees of public parks and squares or the dense colourful foliage of suburbia, the impact of trees and arboriculture upon modern towns and their ecosystems is clear. From the formal walks and squares of the Georgian town to Victorian tree-lined boulevards and commemorative oaks, trees are the organic statuary of modern urban society, providing continuity yet constantly changing through the day and over the seasons. Interfacing between humans and nature, connecting the continents and reaching back and forward through time to past and future generations, they have come to define urbanity while simultaneously evoking nature and the countryside. This book is the first major study of British urban arboriculture between 1800 and 1914 and draws upon fresh approaches in geographical, urban and environmental history. It makes a major contribution to our understanding of where, how and why trees grew in British towns in the period, the social and cultural impact of these and the attitudes taken towards them. CONTENTS Chapter One. Private Urban Garden Trees Chapter Two. Trees in Public Parks and Gardens Chapter Three. Trees in the Victorian Cemetery Chapter Four. Trees in Victorian Nottingham c. 1840–1880 Chapter Five. Victorian and Edwardian Glasgow Chapter Six. Towards a National Capital: Cardiff Chapter Seven. Urban Trees and Smoke Pollution Chapter Eight. Trees for Heath and Pleasure: Spa and Resort TownsN/
Organisational learning from crisis : an examination of the UK football industry 1946-97.
Available from British Library Document Supply Centre-DSC:DX187291 / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
To improve the future profit expectations of the Nissan stamping plant
The process of thought applied to establish a thesis topic has been one of non-acceptance of the situations on face value. As such the future profitability of the Nissan Stamping Plant has been considered. A mental model has been established in the authors mind that a definite problem exists within this area. This has led to the formulation of a framework that can be used to handle the problem of low profits that will eventually lead to the closure of the operation. Status-Quo has remained within the operations for almost 25 years, but now changes in Government Legislation pose threats. This leads to the question of how can the profits be improved. The framework was built around a philosophy of continual search for the truth. The scientific method has been applied to understand the theories of a single or double loop response whilst proceeding through the Plan, Do, Check, and Action cycle
Automatic pure anchor-based taxonomy generation from the world wide web.
This thesis proposes a new method of automatic taxonomy generation using the link structure of Webpages. Taxonomy is a hierarchy of concepts where each child concept is said to be encompassed by its parent concept. Techniques have previously been developed to extract taxonomies from a traditional text corpus, but this thesis relies exclusively on the links between documents in the corpus, as opposed to the text of the corpus itself. A series of algorithms were designed and implemented to realize the objectives of this thesis. These programs perform comparably to other techniques using the text in the documents and have shown that there is information available in the link structure of Webpages when creating concept taxonomies
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