2,601 research outputs found

    I love you… but not unconditionally: Perceptions about luxury fashion brands

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    The Generation Y (1978-2000) live in a constant change and are always interacting among them and the brands that they love. The current study aims to contribute to better understand the perceptions that Y's have about Corporate Social Responsibility in fashion luxury brands. Therefore, 31 in-depth interviews were conducted with a group of people belonging to Generation Y. The findings reveal that Y's are concerned about transparent procedures and helping business and society to improve as a consequence of their sustainable and responsible attitudes. The environmental issues and labour practices are the most cited, commented and recommended factors of corporate social responsibility (CSR) proposed by participants. The article provides a framework presenting the seven core factors to incorporate CSR.info:eu-repo/semantics/acceptedVersio

    An Ultra-Stable Referenced Interrogation System in the Deep Ultraviolet for a Mercury Optical Lattice Clock

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    We have developed an ultra-stable source in the deep ultraviolet, suitable to fulfill the interrogation requirements of a future fully-operational lattice clock based on neutral mercury. At the core of the system is a Fabry-P\'erot cavity which is highly impervious to temperature and vibrational perturbations. The mirror substrate is made of fused silica in order to exploit the comparatively low thermal noise limits associated with this material. By stabilizing the frequency of a 1062.6 nm Yb-doped fiber laser to the cavity, and including an additional link to LNE-SYRTE's fountain primary frequency standards via an optical frequency comb, we produce a signal which is both stable at the 1E-15 level in fractional terms and referenced to primary frequency standards. The signal is subsequently amplified and frequency-doubled twice to produce several milliwatts of interrogation signal at 265.6 nm in the deep ultraviolet.Comment: 7 pages, 6 figure

    Field behavior of an Ising model with aperiodic interactions

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    We derive exact renormalization-group recursion relations for an Ising model, in the presence of external fields, with ferromagnetic nearest-neighbor interactions on Migdal-Kadanoff hierarchical lattices. We consider layered distributions of aperiodic exchange interactions, according to a class of two-letter substitutional sequences. For irrelevant geometric fluctuations, the recursion relations in parameter space display a nontrivial uniform fixed point of hyperbolic character that governs the universal critical behavior. For relevant fluctuations, in agreement with previous work, this fixed point becomes fully unstable, and there appears a two-cycle attractor associated with a new critical universality class.Comment: 9 pages, 1 figure (included). Accepted for publication in Int. J. Mod. Phys.

    Applying semantic web technologies to knowledge sharing in aerospace engineering

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    This paper details an integrated methodology to optimise Knowledge reuse and sharing, illustrated with a use case in the aeronautics domain. It uses Ontologies as a central modelling strategy for the Capture of Knowledge from legacy docu-ments via automated means, or directly in systems interfacing with Knowledge workers, via user-defined, web-based forms. The domain ontologies used for Knowledge Capture also guide the retrieval of the Knowledge extracted from the data using a Semantic Search System that provides support for multiple modalities during search. This approach has been applied and evaluated successfully within the aerospace domain, and is currently being extended for use in other domains on an increasingly large scale

    Isolated left ventricular apical hypoplasia

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    Diversidade genética em populações de Sclerotinia sclerotiorum na cultura de feijoeiro (Phaseolus vulgaris L.).

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    Este trabalho teve como objetivo determinar a estrutura genética de três populações de campo de S. sclerotiorum obtidas nos Estados de Goiás, Minas Gerais e Mato Grosso

    Achernar: Rapid Polarization Variability as Evidence of Photospheric and Circumstellar Activity

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    We present the results of a high accuracy (σ0.005\sigma \approx 0.005%) polarization monitoring of the Be Star Achernar that was carried out between July 7th and November 5th, 2006. Our results indicate that, after a near quiescent phase from 1998 to 2002, Achernar is presently in an active phase and has built a circumstellar disk. We detect variations both in the polarization level and position angle in timescales as short as one hour and as long as several weeks. Detailed modeling of the observed polarization strongly suggests that the short-term variations originate from discrete mass ejection events which produce transient inhomogeneities in the inner disk. Long-term variations, on the other hand, can be explained by the formation of an inner ring following one or several mass ejection events.Comment: 16 pages, 5 figures, Accepted to Ap
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