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  • 1
    Digitale Medien
    Digitale Medien
    Investigating preferential flow in a large intact soil block under pasture (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 16 (2000), S. 0 
    Details
    ISSN: 1475-2743
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Geologie und Paläontologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract. A large soil block was constructed to determine the importance of preferential flow routes compared with matric flow pathways at a pasture site in mid-Devon. The sandy loam soil was well structured and uniform. The soil block measured 5 m×3 m×1 m and was instrumented with an array of 54 tensiometers, TDR wave guides and suction samplers connected to an in situ chloride analysis system. Four steady state irrigation experiments were conducted with a range of rainfall intensities. During each experiment chloride and nitrate tracers were applied and the patterns of movement were observed. Although the application of tracer was uniform and the soil was relatively homogeneous, there was large variability across the block in terms of time taken to reach the peak concentration (TPC) and the peak concentration itself. About 44 samplers operated at the greatest intensities (10–2 mm h−1) and only 35 at the smallest (1 mm h−1). No relationship was found between TPC and depth. The fastest TPC and largest concentrations were associated with the greatest rainfall intensities. Relative importance of the individual water pathways was a function of soil heterogeneity: parts of the soil block were highly active with several pathways having short TPCs and conductivities in excess of 4 m day−1 whereas other areas had longer TPCs and conductivities of 1–2 m day−1. The pattern was also dynamic, with conductivities of the pathways changing through time, though most of the faster pathways maintained their greater conductivities for more than one year.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1475-2743.2000.tb00207.x
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  • 2
    Digitale Medien
    Digitale Medien
    Field and modelling studies to assess the risk to UK groundwater from earth-based stores for livestock manure (2001)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 17 (2001), S. 0 
    Details
    ISSN: 1475-2743
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Geologie und Paläontologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract. Boreholes have been constructed at eight sites on the Permo-Triassic Sandstone and Chalk aquifers to assess the extent of chemical and microbiological contamination emanating from unlined farm manure stores. Slurry along fracture faces in the Chalk was found on cores taken from beneath two stores. Porewaters from the Chalk sites and one of the Sandstone sites were discoloured and showed high concentrations of nitrate, ammonium and organic carbon to depths in excess of 10 m. Although Cryptosporidia and Escherichia coli O157 were found in many of the cattle slurry lagoons, neither were found in the aquifer material beneath. The self-sealing of unlined slurry stores is seen as a crucial step in minimizing leakage. A simple mass balance shows farm boreholes near to contaminant sources are at greater risk than public supply wells. Contaminant modelling shows discontinuing use of an unlined farm manure store will lead to little difference in solute concentrations over the short to medium term. Groundwater is most at risk where the water table is shallow since direct hydraulic connection between the lagoon base and the water table considerably increases the rate of vertical migration. This is of greatest significance for pathogens that are thought to be relatively short lived in the subsurface. Under the majority of situations minimal threat is posed to potable groundwater drinking supplies.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1475-2743.2001.tb00018.x
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  • 3
    Digitale Medien
    Digitale Medien
    Dry matter production of white clover (Trifolium repens L.), Caucasian clover (T. ambiguum M. Bieb.) and their associated hybrids when grown with a grass companion over 3 harvest years (2003)
    Oxford, UK : Blackwell Science Ltd
    Grass and forage science 58 (2003), S. 0 
    Details
    ISSN: 1365-2494
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract The dry matter (DM) production of Trifolium repens, T. ambiguum and the backcross 1 (BC1) and backcross 2 (BC2) hybrids with T. repens as the recurrent parent were compared in mixtures with an intermediate heading variety of perennial ryegrass (Lolium perenne L.) under a cutting-only management over 3 harvest years. Plots of parental legume species and backcross hybrids were established from small plantlets and oversown with the companion grass. In the first harvest year, the DM yield of clover in T. repens plots was greater than that in the BC2 plots and both greater than in the BC1 plots, whilst in the second and third harvest years differences between the DM yield of clover in the T. repens and the BC1 and BC2 hybrid plots were small. Similar results were obtained for the DM yield of total herbage. There were also differences in seasonal growth in the first harvest year, when yield of clover in T. repens plots was greater than in the BC1 and BC2 hybrid plots at early cuts but not at later cuts. Few differences in seasonal growth were observed between parental species and hybrids in subsequent harvest years. Comparison of above- and below-ground biomass showed more DM in roots and rhizome of clover in the backcrosses than in the T. repens plots in the second harvest year but differences were less evident in the third harvest year. The clover in the backcross hybrid plots also had fewer stolon growing points per quadrat than the T. repens plots, but the BC2 had more than the BC1 plots. The exploitation of these hybrids in breeding programmes as a strategy to improve the persistence and drought tolerance of white clover is discussed and implications for forage production considered.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2494.2003.00354.x
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  • 4
    Digitale Medien
    Digitale Medien
    Systemic lupus erythematosus with C1q deficiency (2000)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 142 (2000), S. 0 
    Details
    ISSN: 1365-2133
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: We report a case of systemic lupus erythematosus associated with C1q deficiency. Our patient presented at the age of 6 years with cutaneous lupus. She later developed Raynaud’s phenomenon, non-scarring alopecia, oral ulceration and grand mal seizures due to cerebral vasculitis. Complement C3 and C4 levels were consistently normal during flares of her lupus and haemolytic activity of her complement was absent, suggesting a deficiency of an early component of the complement cascade. No C1q could be detected.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2133.2000.03369.x
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  • 5
    Digitale Medien
    Digitale Medien
    A double-blind randomized vehicle-controlled clinical trial investigating the effect of ZnPTO dose on the scalp vs. antidandruff efficacy and antimycotic activity (2003)
    Oxford, UK : Blackwell Science, Ltd
    International journal of cosmetic science 25 (2003), S. 0 
    Details
    ISSN: 1468-2494
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Dandruff is a common problem in approximately 30% of the world's population. Reports in the literature regarding treatment of this condition with various antidandruff shampoos usually report the level of active ingredient within the formulation. However, we propose that a more important parameter relating to antidandruff efficacy is the amount of active ingredient delivered to the scalp from the shampoo. This report describes the results from two studies designed to investigate the relationship between the level of zinc pyrithione (ZnPTO) deposited onto the scalp and the resultant scalp condition. A double-blind randomized vehicle-controlled clinical study comparing three shampoos – a vehicle, a low-depositing ZnPTO shampoo and a high-depositing ZnPTO shampoo – was carried out in the U.K. with 53 panelists with dandruff or mild-to-moderate seborrheic dermatitis of the scalp. Both shampoos containing ZnPTO were significantly superior in antidandruff efficacy to the vehicle. Furthermore, the high-depositing ZnPTO shampoo was significantly superior compared with the low-depositing ZnPTO shampoo in terms of both antidandruff efficacy and antimycotic activity. Antidandruff performance and antimycotic activity of ZnPTO-containing shampoos is highly dependent on the amount of active ingredient delivered to the scalp. Furthermore, careful manipulation of the formulation parameters of an antidandruff shampoo can result in enhanced levels of delivery of the active ingredient without having to increase the level of active ingredient within the formulation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1467-2494.2003.00183.x
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  • 6
    Digitale Medien
    Digitale Medien
    Water-deficit-induced translational control in Nicotiana tabacum (2003)
    Oxford, UK : Blackwell Science, Ltd
    Plant, cell & environment 26 (2003), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: The effect of prolonged water deficit on mRNA translation was quantitatively analysed in apical and basal leaves of whole tobacco (Nicotiana tabacum) plants. The level of large polysomes (six or more ribosomes per mRNA) was significantly higher in apical than basal leaves under well-watered conditions. In both young and old leaves, water deficit caused a progressive reduction in levels of polysomes with concomitant increases in 80S monosomes, indicative of reduced initiation of translation. Despite the global reduction in polysome formation over 144 h of water deficit, the water-deficit-induced putative lipid transfer protein (ltp) mRNA was associated with large polysomes and LTP content increased. Osmotin (osm) mRNA, another water-deficit-induced transcript, also remained associated with large polysomes during prolonged water deficit. In contrast, mRNAs encoding the non-stress proteins ribulose bisphosphate carboxylase/oxygenase small subunit (rbcS) and eukaryotic initiation factor 4A (eIF4A) decreased in abundance and shifted to small polysomes and non-polysomal complexes, indicating that initiation of translation of these mRNAs was impaired by water deficit. These results show that translational regulation is a component of the water-deficit response and the differential translation of individual mRNAs is distinct in leaves of different age.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-3040.2003.00952.x
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  • 7
    Digitale Medien
    Digitale Medien
    Solving inequities in provider distribution: loan repayment (2002)
    Oxford, UK : Blackwell Science Ltd
    Health & social care in the community 10 (2002), S. 0 
    Details
    ISSN: 1365-2524
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The distribution of primary health care professionals in England and Wales is inequitable, with relatively lower concentrations of professionals in deprived areas. The objective of the present study was to determine whether graduate health professionals would be willing to work in under-served areas in return for educational loan repayment. The study group consisted of a convenience sample of 50 newly qualified and trainee general practitioners, and 50 newly qualified community nurses and health visitors in mid- and west Wales. At interview, the subjects were presented with descriptions of general practices and asked to indicate their preferred practice. Practice descriptions varied systematically in terms of location (i.e. urban, suburban and rural), population deprivation (i.e. deprived or mixed affluent/deprived) and availability of loan repayment (i.e. none or loans paid off over a period of between one and 4 years). The main outcome was the probability that a practice with loan repayment was chosen. Compared with a suburban practice, a one-year loan repayment option made the rural and urban deprived practices 1.6 times and 1.2 times more likely to be chosen, respectively. Nurses were generally more willing than doctors to work in a deprived area in return for loan repayment. The findings suggest that loan repayment may offset health professionals’ aversion to working in deprived areas. Such a scheme needs to be piloted to see whether it does offer value for money in recruiting health professionals to under-served areas.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2524.2002.00354.x
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  • 8
    Digitale Medien
    Digitale Medien
    The safety of immunotherapy (2004)
    Oxford, UK : Blackwell Science Ltd
    Clinical & experimental allergy 34 (2004), S. 0 
    Details
    ISSN: 1365-2222
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2222.2004.1927.x
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  • 9
    Digitale Medien
    Digitale Medien
    Elderly lifestyles in the 21st century: Doris and Sid's excellent adventure (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of communication 50 (2000), S. 0 
    Details
    ISSN: 1460-2466
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medien- und Kommunikationswissenschaften, Kommunikationsdesign
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1460-2466.2000.tb02849.x
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  • 10
    Digitale Medien
    Digitale Medien
    Adjusting to ‘the home’: dialectical dilemmas and personal relationships in a retirement community (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of communication 50 (2000), S. 0 
    Details
    ISSN: 1460-2466
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medien- und Kommunikationswissenschaften, Kommunikationsdesign
    Notizen: This paper reports and discusses a study undertaken at a West Coast U.S. retirement community. Fifteen able elderly residents were interviewed about their personal relationships and communication with peers, family, and younger people. The paper examines how the residents' discourse reveals a number of dialectical contradictions that elders who choose the retirement community lifestyle may need to manage in order to facilitate adjustment. Among the dialectical contradictions discussed here is the difficulty of managing issues of autonomy versus connection with the family network on the one hand and the retirement community on the other. This is a particularly salient issue, given the dominance of dependency-related stereotypes associated with such communities and those who choose to reside in them. This paper also looks at the contradictory dialectical pushes and pulls of connection and autonomy with respect to peer and friendship networks within the community. In this regard, our data illustrate residents' attempts to manage stresses that ill health and frailty place on relationships. In some senses, the elders interviewed, especially frail elders, positively disassociated themselves from some peers, while seeking to form and maintain satisfactory relationships with other peers, some of whom were in ill health. These issues are discussed with respect to retirement community living as a lifestyle choice.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1460-2466.2000.tb02853.x
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