2,768 research outputs found
AAS Card Catalogues: Chinese (Wade Giles)
No full textThis dataset contains digitised cards from the Wade-Giles card catalogue
Dispersal and remineralisation of biodeposits: Ecosystem impacts of mussel aquaculture
No full textSuspension-feeding bivalves produce biodeposits (faeces and pseudofaeces) that have much higher sinking velocities than their constituent particles. Consequently they cause sedimentation of material that might otherwise not be deposited. The benthic remineralisation of biodeposits increases sediment oxygen demand and nutrient regeneration, thus enhancing the benthic-pelagic coupling of nearshore ecosystems. In New Zealand the mussel Perna canaliculus has a high natural abundance and is also intensively cultured. This thesis examines the dispersal and remineralisation characteristics of mussel P. canaliculus biodeposits and the impacts of sedimentation from a mussel farm in the Firth of Thames on sediment biogeochemistry by combining laboratory, field and modelling studies.
Dispersal characteristics were examined in the laboratory by measuring sinking velocities and erosion thresholds of biodeposits produced by mussels of a wide size range fed three experimental diets. The results show that biodeposit dispersal is a function of mussel diet and size and thus could differ significantly between locations and seasons. Estimates of dispersal distances based on these results demonstrated that the initial dispersal of biodeposits produced by cultured mussels is not far. Depending on the hydrodynamic conditions, secondary dispersal via resuspension potentially plays a more important role in the dispersal of biodeposits from mussel farms than initial dispersal and almost certainly serves as the major means of transport of biodeposits from natural mussel beds.
Biodeposit mineralisation was studied by incubating coastal sediments with added biodeposits and measuring oxygen and nutrient fluxes as well as sediment characteristics over an 11 d period. Sediment oxygen consumption and ammonium release increased immediately after biodeposit addition and remained elevated compared to control cores without additions for the incubation period. A biodeposit decay rate (0.16 d-1) was calculated by fitting a first-order G model to the observed increase in oxygen consumption. This rate is 1 - 2 orders of magnitude higher than published decay rates of coastal sediments without organic enrichment or plant material. Nutrient fluxes during the incubation period illustrated that biodeposit remineralisation alters the stoichiometry of the nutrients released from the sediments which may potentially be more significant than the changes of the individual fluxes.
To determine the impact of a mussel farm in the Firth of Thames I measured sediment oxygen and nutrient fluxes by deploying benthic chambers, sediment characteristics by collecting sediment cores and sedimentation rates by deploying sediment traps in four seasons. Oxygen consumption and sediment nutrient release rates were generally higher under the farm compared to a reference site, demonstrating the typical response to increased organic input. Unusually low nitrogen release rates measured in summer may indicate enhanced denitrification under the farm. A simple budget demonstrated the importance of benthic nutrient regeneration in maintaining primary production in this region and that mussel culture can lead to a redistribution of nutrients. This study showed that site-specific hydrodynamic and biogeochemical conditions have to be taken into account when planning new mussel farms to prevent excessive modifications of nutrient dynamics.
Results of the laboratory and field studies conducted in this thesis were used to parameterise, calibrate and validate models of mussel biodeposit dispersal and remineralisation. A particle tracking model showed that the maximum initial dispersal of faecal pellets from the mussel farm is approximately 300 m and that pellets can be transported several times this distance via resuspension. The remineralisation model was able to simulate the increased nitrogen fluxes from the sediments well and highlighted the need for thorough calibration and parameterisation of the model.
This thesis contributed to the current understanding of the ecosystem impacts of mussel culture and provided numerical models and model parameters that will assist in the assessment of mussel culture sustainability and the contribution of mussels to the nutrient cycling in nearshore ecosystems
Convergences in perfect BL-algebras
No full textThe aim of the paper is to investigate some concepts of convergence in the class of
perfect BL-algebras. Similarity convergence was developed by G. Georgescu and A. Popescu in
the case of the residuated lattices, while the convergence with a fixed regulator was studied
by Cernák for lattice-ordered groups and MV-algebras and by the author for residuated lattices. In this paper we study the similarity convergence and the convergence with a fixed regulator for the perfect BL-algebras. The main result is the construction of Cauchy completion of a perfect BL-algebra.Peer Reviewe
A Return to the Common Reader: Print Culture and the Novel, 1850-1900
No full textIn 1957, Richard Altick's groundbreaking work The English Common Reader transformed the study of book history. The collection aims to conceptualise some of the new directions that the field is taking fifty years afters the publication of this seminal work and to interrogate the category of the ‘common reader’ itself. What do we now mean by the term ‘common reader’? Is it still a useful term in book history and the sociology of literature? Though the history of mass readerships attests to a rise in literacy in the second half of the nineteenth century, and to snobberies and anxieties surrounding the development of a mass reading public, how did different institutional contexts, different groups of readers (such as women, soldiers, prisoners and radicals) and different forms of publication respond differently to the general trend of a growth in literacy? Were there groups of readers or forms of publication, for example, which complicate the picture of a growth in mass literacy and an elite fear of that growth? And who is to be included or excluded from the concept of the ‘common reader’? How did changing concepts of what constituted the ‘common reader’ in the first place contribute to the development of literary and print forms, educational institutions, and concepts of reading and readerships within the period? This privileging does not aim to disassociate the ‘common reader’ from Robert Darnton’s formulation of the author/publisher/reader circuit central to Book History, but rather to more closely analyse the multiple functions and interactions of the reader therein. Importantly, the interrogation of the concept of the ‘common reader’ is brought to bear, in every essay, on questions about the development of the novel in the period. The book offers important textual analyses of literary works by Dickens, Wilkie Collins, Ouida and a range of other popular novelists fruitfully bringing together Book History, print culture and literary methodologies in order to further research into the relationship between the social history of reading and the development of literature in the late nineteenth century. Bringing together a collection of essays, each of which explores distinctive cases of constructions of the ‘English common reader’, this book will further research in the sociology of literature by taking one of its fundamental categories of thought and exploring the complicated set of sociological, literary and historical assumptions and ideas which both underpin and contest it
A Return to the Common Reader: Print Culture and the Novel, 1850-1900
No full textIn 1957, Richard Altick's groundbreaking work The English Common Reader transformed the study of book history. The collection aims to conceptualise some of the new directions that the field is taking fifty years afters the publication of this seminal work and to interrogate the category of the ‘common reader’ itself. What do we now mean by the term ‘common reader’? Is it still a useful term in book history and the sociology of literature? Though the history of mass readerships attests to a rise in literacy in the second half of the nineteenth century, and to snobberies and anxieties surrounding the development of a mass reading public, how did different institutional contexts, different groups of readers (such as women, soldiers, prisoners and radicals) and different forms of publication respond differently to the general trend of a growth in literacy? Were there groups of readers or forms of publication, for example, which complicate the picture of a growth in mass literacy and an elite fear of that growth? And who is to be included or excluded from the concept of the ‘common reader’? How did changing concepts of what constituted the ‘common reader’ in the first place contribute to the development of literary and print forms, educational institutions, and concepts of reading and readerships within the period? This privileging does not aim to disassociate the ‘common reader’ from Robert Darnton’s formulation of the author/publisher/reader circuit central to Book History, but rather to more closely analyse the multiple functions and interactions of the reader therein. Importantly, the interrogation of the concept of the ‘common reader’ is brought to bear, in every essay, on questions about the development of the novel in the period. The book offers important textual analyses of literary works by Dickens, Wilkie Collins, Ouida and a range of other popular novelists fruitfully bringing together Book History, print culture and literary methodologies in order to further research into the relationship between the social history of reading and the development of literature in the late nineteenth century. Bringing together a collection of essays, each of which explores distinctive cases of constructions of the ‘English common reader’, this book will further research in the sociology of literature by taking one of its fundamental categories of thought and exploring the complicated set of sociological, literary and historical assumptions and ideas which both underpin and contest it
A Return to the Common Reader: Print Culture and the Novel, 1850-1900
No full textIn 1957, Richard Altick's groundbreaking work The English Common Reader transformed the study of book history. The collection aims to conceptualise some of the new directions that the field is taking fifty years afters the publication of this seminal work and to interrogate the category of the ‘common reader’ itself. What do we now mean by the term ‘common reader’? Is it still a useful term in book history and the sociology of literature? Though the history of mass readerships attests to a rise in literacy in the second half of the nineteenth century, and to snobberies and anxieties surrounding the development of a mass reading public, how did different institutional contexts, different groups of readers (such as women, soldiers, prisoners and radicals) and different forms of publication respond differently to the general trend of a growth in literacy? Were there groups of readers or forms of publication, for example, which complicate the picture of a growth in mass literacy and an elite fear of that growth? And who is to be included or excluded from the concept of the ‘common reader’? How did changing concepts of what constituted the ‘common reader’ in the first place contribute to the development of literary and print forms, educational institutions, and concepts of reading and readerships within the period? This privileging does not aim to disassociate the ‘common reader’ from Robert Darnton’s formulation of the author/publisher/reader circuit central to Book History, but rather to more closely analyse the multiple functions and interactions of the reader therein. Importantly, the interrogation of the concept of the ‘common reader’ is brought to bear, in every essay, on questions about the development of the novel in the period. The book offers important textual analyses of literary works by Dickens, Wilkie Collins, Ouida and a range of other popular novelists fruitfully bringing together Book History, print culture and literary methodologies in order to further research into the relationship between the social history of reading and the development of literature in the late nineteenth century. Bringing together a collection of essays, each of which explores distinctive cases of constructions of the ‘English common reader’, this book will further research in the sociology of literature by taking one of its fundamental categories of thought and exploring the complicated set of sociological, literary and historical assumptions and ideas which both underpin and contest it
Convergences in perfect BL-algebras
No full textThe aim of the paper is to investigate some concepts of convergence in the class of
perfect BL-algebras. Similarity convergence was developed by G. Georgescu and A. Popescu in
the case of the residuated lattices, while the convergence with a fixed regulator was studied
by Cernák for lattice-ordered groups and MV-algebras and by the author for residuated lattices. In this paper we study the similarity convergence and the convergence with a fixed regulator for the perfect BL-algebras. The main result is the construction of Cauchy completion of a perfect BL-algebra.Peer Reviewe
Suzanne Folds McCullagh et Laura M. Giles, Italian Drawings before 1600 in the Art Institute of Chicago. A Catalogue of the Collection. Chicago, the Art Institute of Chicago et Princeton University Press, 1997. 496 p., 815 ill. n. et bl., 27 pl. coul.
No full textAllard Sébastien. Suzanne Folds McCullagh et Laura M. Giles, Italian Drawings before 1600 in the Art Institute of Chicago. A Catalogue of the Collection. Chicago, the Art Institute of Chicago et Princeton University Press, 1997. 496 p., 815 ill. n. et bl., 27 pl. coul.. In: Revue de l'Art, 1998, n°120. p. 107
Medieval settlement to 18th-/19th-century rookery : Excavations at Central St Giles, London Borough of Camden, 2006-8
No full textThe development of this London suburb from the medieval period to the early 20th century is illustrated by excavations on the site of St Giles Court. Houses were first built along the High Street in the mid 16th century and 100 years later St Giles was at the heart of London suburban expansion and relatively prosperous. By the late 18th century the reputation of the St Giles area and its housing had declined. The site lay within the southern core of the area known as the ‘Rookery’ – a notorious late 18th- and 19th-century slum but from the archaeological evidence an area of contrasting lifestyles, households and businesses
Twelve Select Examples Of The Ecclesiastical Architecture Of The Middle Ages, Chiefly In France, From Drawings By Charles Wild
No full textTWELVE SELECT EXAMPLES OF THE ECCLESIASTICAL ARCHITECTURE OF THE MIDDLE AGES, CHIEFLY IN FRANCE, FROM DRAWINGS BY CHARLES WILD
Twelve Select Examples Of The Ecclesiastical Architecture Of The Middle Ages, Chiefly In France, From Drawings By Charles Wild ( - )
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