9,777 research outputs found

    The Efficacy of the Integrated Child Development Services in Perspective to Nutritional Condition and Growth Development

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    A survey was conducted to assess the nutritional status of children (0-6 years) among 40 Anganwadis in 4 districts of Kerala State registered under the ICDS scheme. A self- prepared structured interview schedule was used. To get the qualitative information of the study anthropometric measures include height and weight were used for assessing nutritional status of the children. The stepwise analysis of two variables height for age and weight for age was applicable on the basis of Waterlow\u27s and Gomez\u27 classification. To examine the relationship between nutritional status of the child and selected variable that affects nutritional status of children, Chi-square test was employed. Based on Gomez\u27 classification, out of 400 children, only 300 (75.0%) of children received supplementary nutrition through ICDS out of which 250 (62.5%) children were normal while 50 (12.5%) were underweight. Based on Waterlow\u27s classification out of 400 children, only 290 (72.5%) of children received supplementary nutrition through ICDS out of these children 200 (50 %) were normal while 90 (22.5%) were stunted. It can thus be concluded that majority of children were normal who received supplementary nutrition through ICDS

    Large scale flow around turbulent spots

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    Numerical simulations of a model of plane Couette flow focusing on its in-plane spatio-temporal properties are used to study the dynamics of turbulent spots.Comment: 16 pages, 6 figure

    Dynamic Capability and Strategic Corporate Social Responsibility Adoption: Evidence from China

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    An increasing number of studies have proposed that corporate social responsibility (CSR) performance depends on how firms apply their resources and capabilities to implement CSR. A firm’s ability to integrate, build, and reconfigure internal and external competencies to respond to environmental changes is its dynamic capability. Implementation of CSR at the strategic level, i.e., strategic CSR (SCSR) that requires alignment between activities and organizational configuration and structure will contribute to a firm’s sustainability. However, the research on how dynamic capabilities contribute to such alignment and SCSR adoption is incipient. This study investigates how dynamic capability influences the performance of SCSR in China. By analyzing 134 Chinese listed firms in the period 2017–2019, in this study, we found that firms with dynamic capabilities at a non-average-industrial level, i.e., higher or lower level than the average industrial level, were less likely to adopt SCSR practices, and had a low SCSR adoption performance. These results can help firms better understand dynamic capabilities and how dynamic capabilities contribute to SCSR adoption and firms’ sustainable development and operations. The policy implications of the study are also discussed

    Critical success factors for instrumentation and control projects within the power industry in South Africa

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    Abstract: Instrumentation and control projects entail an upgrade or refurbishment of a portion of the current process control system. The changes introduced present integration challenges to people, the plant and operating guidelines and procedures. The successful implementation of these time sensitive projects depends on factors such as change management effectiveness, stakeholder investment and competency of the project team. Project success factors identified across the lifecycle of the project enables the organization to filter down on challenges and risks contained within each project phase. The research identifies critical success factors specific to instrumentation and control projects within the South African power industry. The framework is developed through the descriptive analysis of feedback received from key stakeholders within the organization

    Structure and lattice dynamics of the wide band gap semiconductors MgSiN2_{2} and MgGeN2_{2}

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    We have determined the structural and lattice dynamical properties of the orthorhombic, wide band gap semiconductors MgSiN2_{2} and MgGeN2_{2} using density functional theory. In addition, we present structural properties and Raman spectra of a MgSiN2_{2} powder. The structural properties and lattice dynamics of the orthorhombic systems are compared to wurtzite AlN. We find clear differences in the lattice dynamics between MgSiN2_{2}, MgGeN2_{2} and AlN, for example we find that the highest phonon frequency in MgSiN2_{2} is about 100~cm−1^{-1} higher than the highest frequency in AlN and that MgGeN2_{2} is much softer. We also provide the Born effective charge tensors and dielectric tensors of MgSiN2_{2}, MgGeN2_{2} and AlN. Phonon related thermodynamic properties, such as the heat capacity and entropy, are in very good agreement with available experimental results.Comment: 9 pages, 11 figures, 6 table

    Nanoarrays for the generation of complex optical wave-forms

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    Light beams with unusual forms of wavefront offer a host of useful features to extend the repertoire of those developing new optical techniques. Complex, non-uniform wavefront structures offer a wide range of optomechanical applications, from microparticle rotation, traction and sorting, through to contactless microfluidic motors. Beams combining transverse nodal structures with orbital angular momentum, or vector beams with novel polarization profiles, also present new opportunities for imaging and the optical transmission of information, including quantum entanglement effects. Whilst there are numerous well-proven methods for generating light with complex wave-forms, most current methods work on the basis of modifying a conventional Hermite-Gaussian beam, by passage through suitably tailored optical elements. It has generally been considered impossible to directly generate wave-front structured beams either by spontaneous or stimulated emission from individual atoms, ions or molecules. However, newly emerged principles have shown that emitter arrays, cast in an appropriately specified geometry, can overcome the obstacles: one possibility is a construct based on the electronic excitation of nanofabricated circular arrays. Recent experimental work has extended this concept to a phase-imprinted ring of apertures holographically encoded in a diffractive mask, generated by a programmed spatial light modulator. These latest advances are potentially paving the way for creating new sources of structured light

    Optical vortex generation from molecular chromophore arrays

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    The generation of light endowed with orbital angular momentum, frequently termed optical vortex light, is commonly achieved by passing a conventional beam through suitably constructed optical elements. This Letter shows that the necessary phase structure for vortex propagation can be directly produced through the creation of twisted light from the vacuum. The mechanism is based on optical emission from a family of chromophore nanoarrays that satisfy specific geometric and symmetry constraints. Each such array can support pairs of electronically delocalized doubly degenerate excitons whose azimuthal phase progression is responsible for the helical wave front of the emitted radiation. The exciton symmetry dictates the maximum magnitude of topological charge; detailed analysis secures the conditions necessary to deliver optical vortices of arbitrary order
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