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  • 2005-2009  (7)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 161-164 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This study investigated the mixed alkali effect in a series of phosphate based glasses. Theseglasses were of the composition 0.5P2O5-0.2CaO-0.3-xNa2O-xK2O where x=0 to 0.3 in steps of 0.05.This study considered density measurements using Archimedes’s principle, thermal characterisation usingdifferential scanning calorimetry, phase analysis following crystallisation using X-ray powder diffraction(XRD), and degradation studies combined with ion release. The results showed that these mixed alkaliglasses showed a linear decrease in density, with the ternary single alkali glass with 0.3mol K2O showinga 3% reduction in density as compared to that with 0.3mol Na2O which correlated well with thedifference in ionic diameter and atomic weight of both cations. These glasses also showed intermediateglass transition temperature (Tg) values, compared to those of the ternary single alkali glasses having thesame alkali oxide content, and the minimum Tg value was recorded for equimolar amounts of both alkalioxides. However, they did not show any significant change in the degradation rate compared to the glasswith 0.3mol Na2O with the exception of the 0.25mol K2O glass. The single alkali glass with 0.3mol K2Oshowed a significant increase in the degradation rate by an approximate one order of magnitude. For themixed alkali glasses with low molar concentration of K2O, only sodium phosphate-rich phases[NaCa(PO3)3 and Na4Ca(PO3)6] were detected from XRD; at high molar concentrations however,potassium phosphate-rich phases [KCa(PO3)3 and KPO3] were detected. At equimolar concentration ofboth alkali cations, KCa(PO3)3 and Na4Ca(PO3)6 were identified. K+, Ca2+, and P3O93- release followedthe degradation behaviour where the highly degrading glasses with 0.25 and 0.3mol K2O released thehighest amount of these ions; however, there was no definite trend in the remaining glass compositions
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK; Malden, USA : Blackwell Publishing Ltd/Inc.
    Journal of cutaneous pathology 32 (2005), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Mammary-like glands are a poorly recognized structure of the normal vulvar skin. Adenocarcinomas occur rarely in these glands and represent a distinct clinicopathologic entity that must be distinguished from metastatic tumors. We present a case of a 51-year-old patient with a long-standing nodule on her right labium majus. Excision with subsequent Mohs micrographic surgery revealed an infiltrating adenocarcinoma of the mammary-like glands involving the dermis and subcutis. We review all cases thus far reported (including the case presented herein) and identify important clinical and morphologic features of this tumor. A significant histopathological and immunohistochemical overlap between this neoplasm, sweat gland carcinomas, and invasive extramammary Paget’s disease was recognized; suggesting the existence of a morphologic spectrum between these entities. Criteria for establishing the diagnosis of adenocarcinoma of mammary-like glands are reviewed, including the importance of identifying transition zones between normal mammary-like glands and malignant glands. We believe that this tumor is best categorized as a locally aggressive neoplasm with a low metastatic potential and death from disease is uncommon. The successful treatment of this case by Mohs micrographic surgery suggests that an alternate management approach may be adopted for these tumors, particularly in elderly patients.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK; Malden, USA : Blackwell Publishing Ltd/Inc.
    Journal of cutaneous pathology 32 (2005), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Dimorphic fungal infections (histoplasmosis, blastomycosis, coccidiomycosis, and cryptococcosis) can occur in immunocompromised and healthy individuals. Cutaneous involvement is often secondary and may be the presenting sign of systemic disease. These ominous infections are frequently clinically indistinct and their prognosis is influenced by their timely diagnosis and treatment. Morphological differentiation between these organisms is not definitive and tissue cultures represent the diagnostic gold standard in current day practice. However, not uncommonly tissue cultures are not obtained and merely represent an afterthought in seemingly unsuspecting cases. Furthermore, when performed, they may take several days to weeks for completion. In situ hybridization (ISH) utilizing oligonucleotide probes directed against fungal ribosomal RNA represents a rapid and accurate assay for the diagnosis of dimorphic fungi in paraffin-embedded tissue sections. We present 7 patients in whom ISH both prospecitively and retrospectively confirmed the presence of a cutaneous infection (2 histoplasmosis, 2 blastomycosis, 1 coccidiomycosis, 2 cryptococcosis). In all of the skin sections analyzed, dimorphic fungi were morphologically apparent but not diagnostically discernable. In summary, ISH represents a valuable tool in the prompt diagnosis of cutaneous deep fungal infections.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 60 (2005), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Aquaculture nutrition 11 (2005), S. 0 
    ISSN: 1365-2095
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: An 8-week growth trial was conducted to determine the dietary histidine requirement of the Indian major carp, Cirrhinus mrigala fingerling (length 4.22 ± 0.45 cm; weight 0.61 ± 0.08 g; n = 40). Isonitrogenous (400 g kg−1 crude protein) and isoenergetic (17.90 kJ g−1 gross energy) diets with graded levels of l-histidine (2.5, 5.0, 7.5, 10.0, 12.5 and 15.0 g kg−1 dry diet) were formulated using casein and gelatin as a source of intact protein, supplemented with l-crystalline amino acids. Twenty fish were randomly stocked in 70-L indoor polyvinyl circular fish tank (water volume 55-L, water exchange rate 1–1.5 L min−1) and fed experimental diets at the rate of 5% of their body weight/day divided over two feedings at 08:00 and 16:00 h. Maximum live weight gain (295%), best feed conversion ratio (FCR) (1.48) and protein efficiency ratio (PER) (1.69) occurred at 7.5 g kg−1 of dietary histidine level. When live weight gain, FCR and PER data were analysed using second-degree polynomial regression, the break points indicated histidine requirements at 9.4, 8.6 and 8.5 g kg−1 of dry diet respectively. Significantly (P 〈 0.05) higher whole body protein and low moisture values were recorded at 7.5 g kg−1 histidine level. Body fat increased significantly (P 〈 0.05) with increasing histidine levels. However, at 7.5 and 10 g kg−1 histidine diets body fat did not differ (P 〉 0.05) to each other. Ash content of fish fed diets containing various levels of histidine did not differ except at 2.5 and 5.0 g kg−1 inclusion levels where significantly (P 〈 0.05) higher ash was recorded. Protein deposition was also found to be significantly (P 〈 0.05) higher in the 7.5 g kg−1 histidine diet. Based on the polynomial regression analysis of FCR and PER data, it is recommended that the diet for fingerling C. mrigala should contain histidine at 8.5 g kg−1 of dry diet, corresponding to 21.25 g kg−1 of dietary protein for optimum growth and efficient utilization of feed.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 30 (2005), S. 0 
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    Journal of manufacturing technology management 16 (2005), S. 753-764 
    ISSN: 1741-038X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Technology , Economics
    Notes: Purpose - The manufacturing paradigm is shifting from being a central system to a distributed system and is increasingly becoming dependent on wide area networks for the management of information services. The information subsystem employed in a manufacturing setting is susceptible to getting congested when used in a wide area network setting during peak hours. The issue of information and control subsystem integration and the characterization of network congestion have been researched in this paper using faded information field architecture. Design/methodology/approach - A wide area network was simulated with all its associated components like routers, switches, gateways, etc. by programming a simulation engine. The simulation engine mimicked a wide area network employed in a manufacturing enterprise. Findings - The architecture holds the promise to address the integration and congestion issues in a manufacturing system by employing autonomous decentralized and autonomous information fading techniques. Results show the effectiveness of the proposed technique in addressing the issue of network congestion in a distributed wide area network. Originality/value - The issue of information and control subsystems of a manufacturing system has been reported earlier. However, the network-centric problems like congestion during peak hours of operation have not been addressed in these emerging paradigms. The research reported in this paper focuses on the congestion issue and could be useful to wide area networked manufacturing system designers and managers.
    Type of Medium: Electronic Resource
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