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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 6 (1992), S. 0 
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: The River Sheaf Comprehensive Flood-Alleviation Scheme is a flood-defence scheme promoted by the Yorkshire Region of the National Rivers Authority. The scheme will improve 5.2 km of main river from a 1-in-5 year standard to a 1-in-50 standard at an overall cost of £3.1 million over the next four years. The hydrological, hydraulic and benefit/cost analyses have been carried out by the National Rivers Authority. Balfour Maunsell were commissioned to carry out the detailed structural design, prepare and administer contracts and supervise construction. The paper covers the preliminary design work and the detailed design of Phase I of the scheme.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 2193-2195 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Oxide layers have been formed on (110) and (100) GaAs wafers by exposure to a high kinetic energy beam of atomic O and characterized using x-ray photoemission spectroscopy (with Ar+ ion sputter profiling) and Raman spectroscopy. Photoemission shows the reacted layer, ∼500 A(ring) thick, to be uniform in composition and fully oxidized. Raman spectroscopy shows that the substrate is not appreciably disordered during oxidation and in some cases no free-elemental As is present at the oxide-substrate interface at a detectable level.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    Anglo-Saxon England 20 (1991), S. 203-220 
    ISSN: 0263-6751
    Source: Cambridge Journals Digital Archives
    Topics: English, American Studies , Archaeology
    Notes: Cambridge, St John's College 42 (B. 20) is a Latin manuscript, dated as twelfth century and tentatively placed at Worcester. It contains 136 folios, closely written in double columns of forty-five lines each, in which a range of abbreviations has been used. By these means a quantity of material has been presented, including two collections of homilies/sermons, a calendar, extracts from the works of named authors and miscellaneous smaller items. The most notable of the sermons for Anglo-Saxonists is a new text of Archbishop Wulfstan's Latin composition, De Anticristo, but it keeps company with other anonymous sermons, some of which are variant texts of sermons copied or composed in English manuscripts of the Anglo-Saxon historical period. The manuscript needs a closer study than those done by M.R. James, who catalogued the anonymous items without identification, or by H. Schenkl, whose catalogue is incomplete although it includes some identifications. Identification of the anonymous items, with notice of parallel texts in other manuscripts where possible, helps to confirm the date of the manuscript, suggests that its place of origin was Worcester, and allows speculation on the canon of Wulfstan's Latin writing.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Comparative clinical pathology 4 (1994), S. 76-85 
    ISSN: 1433-2981
    Keywords: Cervus elaphus ; Haptoglobin ; Plasma viscosity ; Reference values ; Seasonal variation ; Sedation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An automatic haematology analyser (Technicon H6000/C) providing red cell, white cell and platelet parameters was calibrated for the blood of red deer Cervus elaphus. Haematology reference values for these parameters, plasma viscosity and plasma fibrinogen are presented for defined groups of female weaner red deer (n = 123), adult red deer hinds (n = 86) and weaner male red deer (n = 37), the latter being bled using physical restraint and also using xylazine sedation. Age, sex, sedation and season-related differences were found. Reference values are also presented for serum haptoglobin in adult hinds and levels were similar to those seen in cattle. Seasonal analysis of the hinds was checked on a further group of 336 hinds, showing higher acute phase proteins in spring and summer which were possibly related to an increase in eosinophil count starting in spring and continuing through into autumn, and slightly increased neutrophil counts in the summer. Circulating red cell mass parameters were higher in the winter in the hinds, whereas the reverse was found in male weaner deer. There was some evidence of mild iron deficiency in late pregnancy and during lactation in the females. MCV appeared to increase with age, and basophil count was higher in the male deer than in females. No evidence for a neutrophil leucocytosis during pregnancy was found. Plasma viscosity was essentially the same for adult hinds and male weaners, but slightly lower in female weaners, the male group showing a slightly higher upper limit for fibrinogen. Plasma viscosity exhibited seasonal variation.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 33 (1991), S. 438-440 
    ISSN: 1432-1920
    Keywords: Leukodystrophy ; Alexander's disease ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of biopsy proven Alexander's disease is described with extensive low density lesions in both frontal lobes, which in our experience, and on survey of the literature have not been described previously.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Comparative clinical pathology 4 (1994), S. 86-95 
    ISSN: 1433-2981
    Keywords: Acute phase response ; Haptoglobin ; Infection ; Red deer ; Yersiniosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Haematological changes were followed in a field model of infection with Yersinia pseudotuberculosis using female weaver red deer, 109 animals having blood samples taken before the challenge and at various times after challenge, a total of 553 blood samples being processed. Clinical signs first developed 4 days after exposure, with a mode of 5 days and median of 7 days. Neutrophils rose sharply to well above the upper reference limit 1–2 days postexposure, but were within reference limits by days 3 to 4, before the development of clinical signs. Both haptoglobin and fibrinogen levels increased within 24 h of exposure to levels above the reference range, fibrinogen returning to within the reference range about day 14, though still highly significantly raised compared to pre-exposure values. Haptoglobin levels were still greater than the reference range upper limit 28 days after exposure. Mononuclear leucocytes were reduced in number 2 days after exposure reaching a minimum at 4 days and reaching pre-exposure values by day 6. Eosinophil numbers were low at 2 days, all clinical cases having eosinophil counts round the low end of the reference range, counts remaining low and not reaching pre-exposure levels until the 28th day sample. The basophil count decreased in animals with inflammation early in the infection and increased above pre-challenge values around the 28th day. Circulating platelet numbers decreased with a minimum 4 days after exposure, then increased above pre-exposure values from day 6 to day 11. The mean platelet volume was low on day 5, returning gradually towards pre-exposure values, but still low on day 28. Red cell mass indicators were higher and mononuclear leucocytes were lower in fatal cases than in non-fatal clinical cases. Fibrinogen level and neutrophil counts were higher in animals with clinical signs that survived, compared to animals without clinical signs but from which Yersinia were isolated. Subcutaneous injection of killed Yersinia also invoked a neutrophil leucocytosis, reductions in circulating mononuclear leucocyte, eosinophil and basophil numbers, and mean platelet volume. There were also increases in fibrinogen and haptoglobin levels, and in circulating platelet numbers.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Sexual plant reproduction 4 (1991), S. 235-243 
    ISSN: 1432-2145
    Keywords: Male sterility ; Pollen ; Anther ; Gameto cides ; Chemical hybridizing agents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Several unrelated compounds are known to selectively inhibit the development of the male gametophyte. When applied at suitable dosages to plants at the appropriate stages of anther development, these substances block the formation of fertile pollen. The affected stage of pollen development is characteristic of the specific chemical structure of the compound, ranging from effects on microspore meiosis to the formation of pollen defective in the ability to germinate or fertilize. The range of effects mediated by these substances, and by known male-sterile mutants, indicates that microspore development has several critical phases that are particularly sensitive to fatal inhibition. We propose that chemical inhibitors of pollen development deserve attention as tools for elucidating the regulation of pollen development.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-2145
    Keywords: Wheat pollen ; Chemical hybridizing agents ; Male sterility ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Phenylcinnoline carboxylate compounds SC-1058 and SC-1271 cause complete male sterility in wheat when applied at suitable dosages at the pre-meiotic stage of anther development. Anthers from treated and untreated plants were compared using light and electron microscopy from the pre-meiotic stage through the formation of nearly mature pollen. Overall anther development is gradually slowed in treated plants and pollen development is generally arrested in the late prevacuolate or early vacuolate microspore stage, although the first pollen mitosis does sometimes occur. The sporopollenin-containing exine walls are thinner, and show abnormally developed foot and tectum layers with sparse connecting baculi. Microspore cytoplasm degenerates and the cells eventually collapse. At the early, prevacuolate, free microspore stage treated tapetal cells hypertrophy, expanding into the locule. They contain abnormally large vacuoles that appear to form from the fusion of secretory vesicles, and some vacuoles contain electrondense deposits. The sporopollenin-containing orbicular wall and Ubisch bodies are retarded in their development and are structurally deformed. Acetolysis of whole anthers and of thick sections shows that the sporopollen-in-containing structures of treated materials are greatly reduced in thickness and are less rigid than in the control. We conclude that application of these compounds causes interference with the secretory function of tapetal cells which supplies sporopollenin cell-wall polymers to the exine of the microspores and to the tapetal orbicular wall and associated Ubisch bodies. Interference with the tapetal secretion of other nutrients required for microspore development is strongly suggested.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inherited metabolic disease 16 (1993), S. 800-811 
    ISSN: 1573-2665
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Congenital lactic acidoses form a large group of disorders that are commonly associated with profound neurological dysfunction. Difficulties are frequently encountered in establishing a diagnosis, and the mechanisms underlying brain damage are poorly understood. We have performed proton magnetic resonance spectroscopy (1H-MRS) on 24 patients under investigation for suspected metabolic disorder, and have compared the MRS observations of brain lactate with measurements of cerebrospinal fluid (CSF) lactate. We have shown good concordance between the two types of observation, confirming the value of the CSF measurements. Regional variations in brain lactate are detected in some cases, and these may help to elucidate the mechanisms underlying selective brain damage.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 35 (1992), S. 787-806 
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The flow associated with the pouring of molten metal into moulds has been modelled based upon certain simplfying assumptions. A finite element based Navier-Stokes equation solver has been used to analyse the flow. The velocities obtained from the Navier-Stokes equation solver are used to advect a pseudo-concentration function for modelling the free fluid front. A simple problem with a known analytical solution is solved first to test the model. Subsequently, several more examples of varied geometrical configuration are modelled to demonstrate the applicability of the proposed model. The Taylor-Galerkin method has been used to model the heat transfer during filling due to its advection dominated nature.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
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