Eady, EA, Jones, CE, Tipper, JL, Cove, JH, Cunliffe, WJ & Layton, AM 1993, 'Antibiotic resistant propionibacteria in acne: need for policies to modify antibiotic usage.', BMJ, vol. 306, no. 6877, pp. 555-556.
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Eady, EA, Ross, JI, Tipper, JL, Walters, CE, Cove, JH & Noble, WC 1993, 'Distribution of genes encoding erythromycin ribosomal methylases and an erythromycin efflux pump in epidemiologically distinct groups of staphylococci', Journal of Antimicrobial Chemotherapy, vol. 31, no. 2, pp. 211-217.
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Kelly, PJ, Nguyen, T, Hopper, J, Pocock, N, Sambrook, P & Eisman, J 1993, 'Changes in axial bone density with age: A twin study', Journal of Bone and Mineral Research, vol. 8, no. 1, pp. 11-17.
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Abstract Bone mineral density in adult life, which is an important determinant of fracture risk, is determined by peak adult bone density, achieved in early adulthood and subsequent rates of change during adult life. Cross-sectional twin and family studies indicate that the majority of population variation in bone density may be explained by genetic factors. Although there is evidence for a genetic effect on peak bone mass, it is unknown whether there is a genetic effect on rates of changes in bone density with age. Changes in lumbar spine and femoral neck bone density determined by dual-photon absorptiometry (Lunar DP3) were examined in a cohort of monozygotic (MZ, n = 21, 3 male and 18 female pairs, median age, range, 46; 24–75 years) and dizygotic twins (DZ, n = 19; 43, 25–65 years). The median follow-up was 3 years (range 1.1–5.5 years), with each subject having at least two and up to four bone density assessments. In these twins, genetic factors determine variation in rates of change (% change/year) in lumbar spine bone density, rMZ = 0.93 and rDZ = 0.51, p < 0.02 (one tailed), and Ward's triangle, rMZ = 0–60. rDZ = 0.11, p < 0.05 (one tailed). Model-fitting analysis was also consistent with a genetic effect on rates of change in bone density at the trochanteric site, although such an effect was not shown at the femoral neck. These data demonstrate, for the first time, the possible existence of genetic determinants of rates of change in bone mineral density in adults.
KETAREN, PP, BATTERHAM, ES, WHITE, E, FARRELL, DJ & MILTHORPE, BK 1993, 'PHOSPHORUS STUDIES IN PIGS .1. AVAILABLE PHOSPHORUS REQUIREMENTS OF GROWER FINISHER PIGS', BRITISH JOURNAL OF NUTRITION, vol. 70, no. 1, pp. 249-268.
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Two experiments were conducted to determine the available P requirements of grower and grower/finisher pigs and to define the conditions for conducting a growth assay for P availability. In the first experiment, diets with four levels of calculated available P (1-4 g/kg) and four Ca:available P ratios (1.7-2.9) were used to determine the available P requirements of grower pigs. The diets were formulated by substituting the required amounts of limestone and sodium tripolyphosphate for sugar in a soya-bean meal and sugar-based diet. In addition to measuring growth responses, a range of bones were examined to determine the most suitable criteria for assessing the response to available P. There was a small quadratic response of feed intake and growth rate of the pigs to level of available P, with maximum responses occurring to approximately 3 g available P/kg (P < 0.05). There were linear depressing effects of increasing Ca: available P ratios on carcass gain and feed conversion ratio (P < 0.01) but most of these effects occurred when the ratio exceeded 2-5: 1.
Nassif, NT, Mackinlay, AG & Thompson, EOP 1993, 'PCR amplification of partial mRNA sequences encoding the α- and β-globin chains of the bivalve mollusc Anadara trapezia: Correction of the C-terminal amino acid sequence of the α-chain', Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, vol. 105, no. 2, pp. 283-287.
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Sambrook, P, Birmingham, J, Kelly, P, Kempler, S, Nguyen, T, Pocock, N & Eisman, J 1993, 'Prevention of corticosteroid bone loss', Osteoporosis International, vol. 3, no. S1, pp. 141-143.
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Sambrook, P, Birmingham, J, Kelly, P, Kempler, S, Nguyen, T, Pocock, N & Eisman, J 1993, 'Prevention of Corticosteroid Osteoporosis -- A Comparison of Calcium, Calcitriol, and Calcitonin', New England Journal of Medicine, vol. 328, no. 24, pp. 1747-1752.
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Shoon, SY, Wan, SW & Nguyen, HT 1993, 'A novel approach to the design of a Wilson referenced ECG amplifier.', Australas Phys Eng Sci Med, vol. 16, no. 3, pp. 111-117.
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The Wilson Central Terminal consists of three limb electrodes connected through a resistor network at the inverting input to the ECG amplifier. It is often used as a zero potential reference in ECG recordings. In this paper, the implications of using a Wilson central reference on the overall amplifier's common-mode rejection ratio and noise specifications is analysed. It is shown that the Wilson reference can degrade the overall amplifier specifications. The design of a Wilson referenced amplifier is then described which shows this to be true. A novel approach to the design of a Wilson referenced ECG amplifier is then presented, whereby the reference network is moved from the input to an intermediate stage of the amplifier. An analysis on the improvements achieved over the conventional approach is given. An amplifier design using the new approach is then described. Tests results showed a significant improvement in amplifier common mode rejection ratio and noise specifications when compared to the conventional design.
Simpson, AM, Iland, H, Clarke, RA, Burn, AL & Tuch, BE 1993, 'Transformation of pituitary and fibroblast cell lines using human insulin c-DNA and a dexamethasone-inducible promoter.', Transplant Proc, vol. 25, no. 5, pp. 2915-2916.
WALKER, JS, ARROYO, JF, NGUYEN, T & DAY, RO 1993, 'Analgesic efficacy of non‐steroidal anti‐inflammatory drugs in experimental pain in humans', British Journal of Clinical Pharmacology, vol. 36, no. 5, pp. 417-425.
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Ardekani, BA, Braun, M & Hutton, BF 1970, 'Improved quantification with the use of anatomical information in PET image reconstruction', Annals of Nuclear Medicine.
Fedaoui, L, Gay, V & Horlait, E 1970, 'QoS management of ODP-based distributed multimedia applications', Proceedings ISAD 93: International Symposium on Autonomous Decentralized Systems, ISAD 93: International Symposium on Autonomous Decentralized Systems, IEE Comput. Soc. Press, pp. 239-245.
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© 1993 IEEE. The objective of this study is to try to answer the question of how to manage quality of service (QoS) in open-distributed processing (ODP)-based distributed multimedia applications. To reach this goal, an overview of the basic characteristics of distributed multimedia applications is given. Their QoS constraints are then specified in the ODP framework of abstraction. The role and the position of QoS management in ODP are shown by a joint editing sample.
Rajaai, SM, Herbert, TJ, Milthorpe, BK & Schindhelm, K 1970, 'Design of an ulna head prosthesis', Proceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Societ, 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Societ, IEEE, pp. 1099-1100.
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Pathological conditions of the ulna head normally cause its instability and result in pain, weakness and limitation of movement of the wrist. In many cases excision of the ulna head is unavoidable, but excision alone may not be adequate and can cause further derangement of wrist performance. Therefore, need exists in some cases to replace the ulna head with an appropriate prosthesis. Existing ulna head prostheses have proven inadequate. The aim of this study was to establish a design for the potential development of an ulna head prosthesis. The dimensions of 100 ulnae have been recorded and classified and are the basis for design and sizing of the prosthesis. Only three prosthetic sizes are required clinically. A stress analysis has been performed for the head and stem of the prosthesis and has demonstrated adequate mechanical strength for the clinical application. The materials of construction selected for the stress analysis are alumina for the head and Ti-6Al-4V for the stem of the prosthesis.
Robb, RA, Ellisman, MH, Bosan, S, Harris, TR, Poon, CS, Braun, M, Ginige, A, Tusda, R, Ueno, S, Truyen, B, Cornelis, J & Vandervelder, P 1970, 'Proceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 3 (of 3)', Proceedings of the Annual Conference on Engineering in Medicine and Biology.
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Recent development of advanced quantitative methods to fully analyze the intrinsic information contained in images, have begun to unearth the rich treasures they contain and to exploit their full scientific, educational and/or biomedical value. structural alterations found in the brains of patients with Alzheimer's disease. The second project concerns the three-dimensional reconstruction of the internal membrane system of neurons involved in the regulation of intracellular calcium. The final project involves the use of tomographic reconstruction techniques to visualize components of the nervous systems in thick sections imaged with the aid of intermediate high voltage electron microscopy. parameter sensitivity directions to determine identifiability for a capillary exchange model. The method is based on a vector definition of model sensitivity to parameter values. The results are images which provide immediate recognition of the identifiability of the parameters over wide ranges. processing and analysis. We propose a smoothing algorithm which preserves edges and thus fine structures common in biomedical images. The algorithm is based on averaging over an independently generated mask at each pixel. The mask generation takes into account local image information and conforms to tissue boundaries. Comparison of the proposed algorithm with other common smoothing techniques favors our algorithm. with the psychological properties in central vision, however, apparent movement in peripheral vision have not been clearly understood. This study focuses on the properties of the perception of apparent movement between central and peripheral vision. improve upon existing image reconstruction techniques in Electrical Impedance Tomography. The dynamics of the network are surprisingly simple and retain the possibility of analog implementation. Compared to the algorithms currently used in EIT, the proposed method differs in its emphasis on relaxation processing and rigoro...
Tao, Z & Nguyen, H 1970, 'Fuzzy control for tracking and handling of moving objects', Proceedings of IEEE Pacific Rim Conference on Communications Computers and Signal Processing, IEEE Pacific Rim Conference on Communications Computers and Signal Processing, IEEE, VICTORIA, CANADA, pp. 35-38.
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