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  • riverine litter  (3)
  • Oblique wedge osteotomy  (1)
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Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 10 (1986), S. 171-176 
    ISSN: 1432-5195
    Keywords: Tibial realignment ; Oblique wedge osteotomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Description d'une nouvelle méthode de calcul de l'angle de correction dans les ostéotomies tibiales supérieures. Le coin est oblique, différent des techniques habituelles. Son sommet est situé sur la corticale interne, au niveau de la tubérosité tibiale antérieure. Son bord supérieur est oblique à 45° en bas et en dehors. On reste ainsi à distance de la bifurcation de l'artère poplitée tout en demeurant dans la zone spongieuse. On décrit également la façon de déterminer avec précision, grâce à un calcul logarithmique, l'angle du coin et la largeur de sa base. Après ablation du coin, celui-ci étant oblique, les surfaces de coupe s'appliquent parfaitement. Deux vis sont mises en place perpendiculairement au plan de l'ostéotomie. Un plâtre cruro-pédieux est porté pendant six semaines, puis remplacé par une attelle permettant la mobilisation du genou et de la cheville. L'ostéotomie consolide rapidement du fait du contact de grandes surfaces obliques. Une diminution appréciable des douleurs a été obtenue dans tous les cas. La mobilité du genou est redevenue ce qu'elle était sous anesthésie immédiatement avant l'opération.
    Notes: Abstract A new method for calculating the angle of correction in upper tibial osteotomies is described. The wedge differs from the current techniques in being oblique. The apex is sited on the medial cortex to lie level with the tibial tubercle. The wedge is coned downwards at an angle of 45 degrees, based laterally. This keeps clear of the bifurcation of the popliteal artery, whilst still being contained in the cancellous zone. The method of accurately determining the angle of the wedge and the width of the base using logarithmic calculations is outlined. Being oblique, on removal of the wedge, the cut surfaces match as they meet. Two screws are inserted to lie at right angles to the plane of osteotomy. A long leg plaster cast is worn for six weeks. Thereafter a cast brace is substituted to permit knee and ankle movements. The osteotomy unites rapidly across the large oblique contact surfaces. Pain relief has been substantial and lasting in every patient. The range of flexion returned to the level elicited under anaesthesia immediately prior to the operation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Water, air & soil pollution 98 (1997), S. 119-139 
    ISSN: 1573-2932
    Keywords: litter clearance and accumulation ; riverine litter ; time of travel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Aspects of litter movement were looked at in a variety of ways. River bank clearances provided valuable information on litter accumulation and movement, showing a distinctive correlation between flood events and litter movement. Introduction of litter outside of channel deposition (diffuse sources) were limited in the study area in South Wales, UK. A rise in litter deposition occurred for some time after flood events, with the main accumulation occurring in the mid-bank zone. As only some litter types have an increased input during flood events e.g. sewage-derived material from combined sewer outfalls (CSO), accumulation of other litter types, e.g. plastic sheeting could be due to their distribution throughout the catchment. A positive correlation between litter stranding and vegetation was found. During high flows, (75.59 cumecs) litter is removed from sites with little restraining vegetation and deposited where stranding potential is high. Smaller items such as feminine hygiene products were more susceptible to stranding than larger plastic sheeting.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Water, air & soil pollution 98 (1997), S. 119-139 
    ISSN: 1573-2932
    Keywords: litter clearance and accumulation ; riverine litter ; time of travel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Aspects of litter movement were looked at in a variety of ways. River bank clearances provided valuable information on litter accumulation and movement, showing a distinctive correlation between flood events and litter movement. Introduction of litter outside of channel deposition (diffuse sources) were limited in the study area in South Wales, UK. A rise in litter deposition occurred for some time after flood events, with the main accumulation occurring in the mid-bank zone. As only some litter types have an increased input during flood events e.g. sewage-derived material from combined sewer outfalls (CSO), accumulation of other litter types, e.g. plastic sheeting could be due to their distribution throughout the catchment. A positive correlation between litter stranding and vegetation was found. During high flows, (75.59 cumecs) litter is removed from sites with little restraining vegetation and deposited where stranding potential is high. Smaller items such as feminine hygiene products were more susceptible to stranding than larger plastic sheeting.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Water, air & soil pollution 112 (1999), S. 197-216 
    ISSN: 1573-2932
    Keywords: fly tipping ; riverine litter ; sewage ; sources
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Riverine litter occupies a spatial and temporal position in any systematic analysis of river systems and is a problem that is increasing in scale. Quantifiable source factors of litter in the river Taff, South Wales, UK, system were found to be mainly two – sewage inputs through combined sewer overflows (CSO) and fly tipping. The greatest inputs of sewage derived solids were introduced to the river by malfunctioning CSO, the most numerous single component being sanitary towels. Whilst sewage-derived material constituted approximately 23% of all items on the river Taff, large quantities of waste, especially plastic sheeting, originated from fly tipping sites.
    Type of Medium: Electronic Resource
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