50,365 research outputs found

    Railway regulation in 19th Century Britain: the economic rationale and legacy of Gladstone and Chadwick

    No full text
    This paper examines the economic rationale of the ideas of Gladstone & Chadwick on railway regulation and the legacy of their ideas. In 1844 Gladstone proposed and implemented what we would now call price and quantity regulation whereas in 1859 Chadwick proposed competition "for the field", i.e. the establishment of a temporary monopoly or franchise, for a given period. The thinking of Gladstone had been influenced by the classical school of economic thought, most notably J R McCulloch, whilst Chadwick had ideas influenced by his association with Jeremy Bentham and John Stuart Mill. This ideas still impact today; the basic pattern of price and some quantity regulation inaugurated by Gladstone was not abolished until the 1960 Transport Act whilst Chadwicks idea of temporary licenses or franchises came back into vogue when the railways were privatised in 1997.Britain, nineteenth century, railway regulation, classical school, J R McCulloch, Edwin Chadwick, John Stuart Mill

    Chadwick GreenBIM: Advancing Operational Understanding of Historical Buildings with BIM to Support Sustainable Use

    No full text
    Chadwick GreenBIM is an initiative to establish a digital 3D as-built model of UCL’s Chadwick Building including embedded environmental data to gain a greater understanding of its operation with the aim of developing concepts for retrofit and sustainable use. This paper investigates the above by reviewing the state of the art in reality capture to generate a parametric model using laser scanning. It also considers the challenges of managing information for simulation including complex ‘big data’ types (e.g. point clouds). The research in this paper was carried out through an empirical approach to create a data-rich Building Information Model (BIM) under real world conditions. Real world measurements of environmental conditions were used to validate the effectiveness of simulations using commercial off-the-shelf (COTS) software packages. In addition, the practicalities of the integration of such data inside the BIM were investigated. Data capture using the methods described in this paper requires extraordinary effort and is expensive in both time and cost. However, advances in BIM enabling technologies such as Indoor Mobile Mapping (IMM) seek improved savings in data collection. Technological advances will further improve the integration of data capture and extraction of information used by simulation tools. Once complete it is envisaged that the GreenBIM model would be disseminated among a broad community of researchers to investigate various perspectives in a collaborative manner

    Lawn and ornamentals research, 1966

    No full text
    Lawn grasses, mixtures, and blends / R. R. Davis -- Kentucky bluegrass varieties / M. H. Niehaus and R. R. Davis -- Bentgrass varieties for golf courses and lawns / R. W. Miller and R. R. Davis -- Spot treatment for perennial grass weeds / G. B. Triplett, Jr. and R. R. Davis -- Turf insect problems / J. B. Polivka -- Diseases of turfgrasses / H. A. Runnels -- Stripe smut of merion Kentucky bluegrass / R. E. Partyka -- Shade trees for yard and street beautification / O. D. Diller -- Fifty outstanding shade and ornamental trees / L. C. Chadwick -- Fifty choice shrubs and small trees / L. C. Chadwick -- Fifty outstanding shrubs and small trees with ornamental fruits / L. C. Chadwick -- Some recommended uncommon shrubs / L. C. Chadwick and K. W. Reisch -- Taxus--Yew / L. C. Chadwick and K. W. Reisch -- The viburnums / K. W. Reisch -- Pruning ornamental plants / K. W. Reisch and L. C. Chadwick -- Woody plant viability research / K. W. Reisch and F. K. Buscher -- Freeze injury on ornamental plants--Spring 1966 / K. W. Reisch and L. C. Chadwick -- Wilt diseases of trees and problems associated with control / G. J. Bar

    1960 Ohio Agricultural Experiment Station Recommendations for Nursery Stock, Trees, Shrubs, Turf

    No full text
    Winter protection practices for container grown nursery stock / K. W. Reisch -- Chemical control of weeds in nursery areas / L. C. Chadwick -- Lawn recommendations for 1960 / R. R. Davis -- Insect and mite pests of ornamentals / R. B. Neiswander and Ralph H. Davidson -- Plant diseases of ornamentals / C. W. Ellett -- Selection based on size, growth habit, texture, foliage color, and hardiness following winter of 1958-1959 ; The best of the Taxus / L. W. Chadwic

    Lawn and ornamentals research [1965]

    No full text
    Foreword / R. W. Kottman -- Quality lawn seed / D. W. Graffis -- Bentgrass varieties for golf courses and lawns / R. R. Davis and R. W. Miller -- Varieties of Kentucky bluegrass / R. W. Miller and R. R. Davis -- Maintenance fertilization of Kentucky bluegrass / R. R. David and R. W. Miller -- Crabgrass can be controlled / R. W. Miller and R. R. Davis -- Controlling broadleaf weeds in lawns / G. B. Triplett, Jr. and R. R. Davis -- Turf insect control / J. B. Polivka -- Ornamental crabapples / L. C. Chadwick -- Shade trees for Ohio lawns and streets / O. D. Diller and L. C. Chadwick -- Arboretums help beautify America / O. D. Diller -- Changing the grade level around trees / L. C. Chadwick and K. W. Reisch -- Anti-dessicants aid in transplanting shrubs / K. W. Reisch and E. M. Smith -- Growth retardants speed flowering / K. W. Reisch and P. C. Kozel -- Control of weeds in ground covers / L. C. Chadwick -- Chlorosis of pin oaks and other ornamental trees / L. C. Chadwick -- Diseases of woody ornamental plants / G. J. Bart -- A guide to the more common insect and mite pests of shade trees and ornamentals / R. W. Rings and W. K. Delaplane, Jr

    Graft-tunnel healing

    No full text
    Several experimental studies have shown that bone–tendon p0310 graft healing in ACL reconstruction occurs in a period varying from 3 to 12 weeks. The quality and rate of healing depend on many variables, predominantly the type of graft. Soft tissue grafts such as hamstring tendon grafts heal within a bone tunnel by formation of a fibrous transitional layer between the tendon and bone, which contains penetrating Sharpey-like fibers. This newly formed bone– tendon interface matures with time and resembles the indirect-type insertion observed in tendons and ligaments. Bone plug tendon grafts, such as patellar tendon, heal within bone tunnel by incorporation of the bone plug to the surrounding bone and formation of an indirect-type insertion at the interface between bone and the intraosseous fibrous portion of the graft. Bone–bone healing occurs more rapidly than tendon—bone healing. Resistance to pullout force appears to be similar between the two types of grafts by 8 to 12 weeks after surgery. Therefore soft tissue grafts need high primary fixation strength and stiffness because of the consistent risk of failure due to pullout from the tunnel during the first 2 months. Mechanical stresses can affect maturation and differentiation of the bone–tendon graft junction depending on many factors such as bone density, fixation, placement and tensioning of the graft, gap size, and postoperative immobilization. Compression of the graft within the tunnel can enhance healing for both the bone plug and soft tissue. However, during the first 3 months after an ACL reconstruction, regardless of the type of graft used, the strength of the bone–tendon graft junction does not influence the mechanical behavior of the femur–ACL graft–tibia complex because the weak link of the ligament replacement rapidly shifts from the fixation site to the midsubstance of the graft. Therefore the application of excessive loads during this period, such as a too-aggressive rehabilitation and early return to sport activities, may cause a permanent elongation of the graft, thus compromising the result of the reconstruction. Many efforts have been made to improve the quality and rate of bone–tendon healing. Tissue engineering and gene transfer techniques have been applied to obtain a direct-type fibrocartilaginous insertion of the ACL graft, similar to that of the native ligament, and to accelerate the healing process of tendon grafts within bone tunnel. However, more investigations will be necessary in the near future to evaluate the possible employment of these biological techniques in the clinical practice

    The response of dissolved carbon dynamics to environmental change in upland shallow organic soils: a study of organic horizon responsiveness and soil horizon interactions

    No full text
    The response of dissolved carbon dynamics to environmental change in upland shallow organic soils: a study of organic horizon responsiveness. and soil horizon interactions Katherine L. Chadwick This thesis examined the relatively uncharted realm of dissolved C dynamics in upland shallow organic soils. Extensive preliminary investigations and preparatory experimental evaluations led - ~ to the successful deployment of sampling --strategies at a range of spatial scales in a climosequence of matched field sites in Wales, Scotland and Iceland. These sites provided the basis for investigation of climatic and mineralogical effects upon dissolved C transformation~ in upland shallow organic soils. Biological assessments including novel application of modified techniques identified the responsiveness of these soils to environmental perturbations at a range of experimental scales, and over varied temporal periods. As C loss from upland organic soils requires both degradation of SOM and export of degraded C via soluJion percolation and flushing or gaseous exchange, the capacity of the different mineral horizons to retain degraded C, and indeed the quality of the bound C, is of consequence to soil C source-sink understanding. The combined roles of organic and mineral horizons in C turnover potential and retention capability, indicate the in;tportance ofupland shallow organic soils in modelling soil C dynamics in response to climate change. This highlights the necessity of sustainable management of these upland areas within the northern hemisphere. KEYWORDS: Carbon; Upland; Organic soil; Climate; Latitude; Horizons; Phenol oxidase; Hydrolases, Turnover, Biodegradation.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Erratum to: Effect of moderate red wine intake on cardiac prognosis after recent acute myocardial infarction of subjects with Type 2 diabetes mellitus (Diabetic Medicine, (2006), 23, 9, (974-981), 10.1111/j.1464-5491.2006.01886.x)

    No full text
    In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola.In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola

    Gender-Typical Appearance in Early Childhood: Role of Parental Gender-Typical Appearance and Children’s Gender Similarity

    No full text
    The emergence of gender-typical appearance in childhood appears to have important implications not only for child and adolescent social-emotional functioning but also for later working life. In the current study, we examined how parents’ gender-typical appearance and children’s gender similarity (to same- and other-gender peers) were related to young children’s gender-typical appearance. We also explored differences in these associations between boys, girls, mothers, and fathers. Home visits were conducted with 74 Dutch two-parent (mother, father) families with both a son and daughter between the ages 3–6 years (96.6% White, 2.0% Asian, 1.4% other ethnicity). The gender-typical appearance of all four family members was assessed by trained and reliable coders in the videotaped observations from the home visits. As a measure of children’s gender similarity, both parents reported on the similarity of their son and daughter to same-gender and other-gender peers. Generalized estimating equations showed that more gender-typical appearance of parents was associated with more gender-typical appearance of girls, but not of boys. No differences were found between mothers and fathers for the association between parent and child appearance. Moreover, children’s gender similarity, evident in parents’ perceived similarity of their child to peers of the same gender and dissimilarity to peers of the other gender, was associated with more gender-typical appearance in children. To conclude, both children’s gender similarity and parents’ gender-typical appearance appear to play a role in the gender-typical appearance of young children
    corecore