2,206 research outputs found

    Aetiology and treatment of epidermal depigmentory disorder in humans

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    The epidermal depigmentary trigger in humans at post-natal level may occur with the toxification of skin organ with the endogenously produced melanocytotoxic hydrogen peroxide and subsequent formation of hydrogen peroxide- melanolipoprotein conjugate involving the hydrogen bonding of complementary hydroxyl and carbonyl molecular surfaces of these biosignitures respectively. The condition is multifactorial but reversible. The structural and functional degeneration of melanocytes under the acquired condition never occur. The molecular conjugation theory on the aetiology and line of treatment of the epidermal depigmentary disorder (recoined as hepato-epidermal syndrome HES) has been proposed. The inherent sulfoxides of Allium cepa have been found as the renaturant of HES condition with the capacity to dislodge the denaturant hydrogen peroxide forming stronger hydrogen bonding with hydrogen peroxide than that of carbonyl molecular surface of melanolipoprotein, the epidermal colour determinant. The orally and topically defined plant based combined therapy advances the recovery time of HES condition

    Enzyme activity and electrophoretic pattern of isoenzymes of amylase, catalase and peroxidase in photo- and gibberellin-induced plants of Impatiens balsamina L. var. rose

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    Floral buds were induced either by 8 h photoperiods or by the application of GA3 and GA13 in Impatiens balsamina. Total enzyme activity was not directly related to floral morphogenesis although some interesting qualitative correlations existed. Thus, the presence of a new isoenzyme of amylase (RF 0·05) may be related to flower formation since it was present only in the induced plants and not in the vegetative ones, regardless of whether the flowering was caused by inductive photoperiods or by gibberellin treatment. Catalase activity, as well as its isoenzyme forms, could not be detected in the stem and the isoenzyme profile in leaves did not alter with photoperiodic or gibberellin treatment. Treatment with gibberellins induced the synthesis of new isoenzymes of peroxidase but inductive photoperiods did not. The enzyme profiles in relation to photoperiod and gibberellin application are discussed

    5-Hydroxy-1,4-naphthaquinone (Juglone), a New Indicator in Acidimetry & Alkalimetry

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    Area of linkage between lean construction and sustainability in indian construction industry

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    Purpose-The purpose of the research paper to study the area of linkage between lean construction (LC) and sustainability in Indian construction industry and rank the identified attributes on the basis of the responses given to their severity to construction projects in India. Design/methodology/approach-The research was conducted by a structured questionnaire that was sent to 180 professional working in Indian construction industry. This questionnaire requested the respondents to give a score to the 26 attributes identified that are 15 lean construction tools for enabling sustainability and 11 attributes as area of linkage between lean construction and sustainability in Indian construction industry through literature review. They were asked to rate the attributes on a Likert scale rating of 1 to 5. The data collect than analysed using relative importance index and reliability analysis. Findings-The research study identifies the top five Significant lean tools for enabling sustainability are: first run studies, six sigma, kanaban, last planner system and visualization tool having relative importance index (Rii) of 0.80, 0.781, 0.779, 0.77 and 0.75 respectively. Most significant area of linkage between sustainability and lean construction are: resource management, waste reduction, energy minimization, elimination of non-value added activities and health and safety improvement as the outcome benefits of linking lean construction and sustainability in Indian construction industry having a relative importance index of 0.83, 0.779, 0.776, 0.77 and 0.76 respectively. Research limitations-The research focused on the responses received through the questionnaire and the number of respondents is 180 with a response rate of 41%. A further more detailed research is required to know the broad effect of lean tools on sustainability in Indian construction industry. © IAEME Publication

    Relationship between skill development and productivity in construction sector: A literature review

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    Purpose-Construction industry development council (CIDC) and national productivity Council (NPC) has emphasized the role of skill development and training as a means of improving productivity and profitability in Indian construction sector. The purpose of this paper is to assess the appropriateness of this policy within the context of the construction industry, through the recent published national and international literature review. Design/methodology/approach-A trend analysis of construction productivity (measured by Gross Value Added/worker) and skills indicators (qualification attainment and training) was conducted over the period 1999-2010. Findings-There is significant relationship between skill development and construction productivity and consistency in the industry's productivity performance and an overall increase in qualification attainment levels and participation rates in training over the same period. © IAEME Publication

    Parametric Modelling for Designing Offsite Construction

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    Increasing population and progressing economies around the world are generating huge demand for built assets. When this demand is dealt with conventional ‘sticks-and-bricks’ approach, it leads to usual delays, wastages, cost overruns, and quality issues, etc. Consequently, the traditional approach results in negative impacts on economic and social scenarios apart from being just unable to deliver required supply level of built assets. On the other hand, offsite construction techniques, when utilized appropriately, can significantly speed up the construction process and improve the quality of deliverables in addition to bringing in improved sustainability and better worker health and safety. But offsite practices are marred with a general perspective of its being cause of rigidity in the design processes and disproportional increment in coordination requirements. To address this perceived problem, the application of Building Information Modelling (BIM) has been conceptualized for the design of a prototype in this research. Simpler ways of modularization and effective optimization of design through parametric modelling has been developed. The methodology coming out of this design exercise, which is of reporting values of parametric variables real-time, is promising in the sense of ensuring the general and flexible usage of offsite practices. Further as experienced during the BIM modelling exercise for the prototype, the design iterations can be accomplished in a more informed manner and optimization run in an automated fashion by using the Application Programming Interface (API) of BIM authoring tool by taking advantage of already defined key parameters. This paper addresses these important issues at the conceptual level and determines a roadmap for further research

    Studies on the Antioxidant Properties of Various extracts of Hippophae rhamnoide

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    Sea Buckthorn (Hippophae rhamnoides) a spiny shrub native to Ladakh Region of Jammu and Kashmir, have been found to posses so many medicinal properties from times immoral. From this point of view the antioxidant property of the plant fruit extracts have been analysed by DPPH method. Various plant extracts viz, fruit, leaf and root have been analysed for the antioxidant power determination in which fruit extracts showed highest free radical scavenging activity followed by leaf and root extracts. Among the solvents which have been used, more polar solvents showed highest antioxidant activity than the less polar solvent extracts. The IC50 value of various plant extracts as determined have been found to be 40 for DCM extract of fruit, 38 for Methanolic extract of fruit and 30 for the water extract of fruit. Similarly the leaf extracts posses IC50 value as 51, 47 and 37 respectively for DCM, Methanol and Water extracts. The IC50 values of various root extracts have been found to be 53, 50 and 48 respectively for DCM, Methanol and Water

    Distance measurements and their combination in handwritten character recognition

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    Recognition of off-line isolated handwritten English block letters and numerals was done within the constrained domains separately. Distance measurements such as Nearest Neighbor (2), Similarity, Hamming, Linear Correlation, Cross Correlation, Entropy and Information Content were used for recognizing handwritten letters and numerals. 65 prototypes of English block letters and 31 prototypes of numerals were used. Experiments were conducted on over 180 images of letters and 120 images of numerals. In the case of letters it was observed that the results of Nearest Neighbor distance measurement were outstanding and Nearest Neighbor outperforms all other distance measurements. In the case of numerals no distance measurement appeared to be sufficient. In both cases (letters and numerals) Entropy and Information Content does not give any correct results. The thinning algorithm by Zhang & Suen was performed on isolated characters for further improvements. It was observed that thinning with distance measurements has no effect on improving the recognition results. Since no distance measurement appeared to be sufficient in the case of numerals, a neural network of type Multi Layer Perceptron (MLP) was used to combine the results from 6 distance measurements (Nearest Neighbor (2), Similarity, Hamming, Linear Correlation, Cross Correlation) to obtain a single recognition result. It was observed that the combination enhanced the success rate. Further improvements to MLP results were obtained by using a structural verifie
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