470 research outputs found

    Metacognitive Awareness and Mindset in Current and Future Principals

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    Metacognition is a key component in education, yet little is known about whether or not instructional leaders are metacognitively aware. Metacognition is described as thoughts about one\u27s knowledge and control over their own cognitive processes (Flavell, 1979). Kuhn (2000) indicated that metacognition develops from an early age, and asserted that the more explicit metacognitive thinking is, the more effective one would be able to engage in metacognitive thinking and control of their cognitive processes. Some examples of metacognitive strategies include planning, monitoring, and evaluating, and can be used by educators or students (Fathima, Sasikuman, & Roja, 2014). Metacognitive strategies should be selected based on tasks, contexts, and an awareness of situational activities (Bjork, Dunlosky, & Komell, 2013)

    Imprimeur du roi à Lyon au XVIIIe siècle - Tome 1 (L\u27)

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    Mémoire de recherche Master "Culture de l\u27Ecrit et de l\u27Image", portant sur les Valfray, imprimeurs attitrés du Roi à Lyon pendant la quasi-totalité du XVIIIe siècle

    Imprimeur du roi à Lyon au XVIIIe siècle - Tome 2 : Annexes (L\u27)

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    Annexes du mémoire de recherche Master "Culture de l\u27Ecrit et de l\u27Image", portant sur les Valfray, imprimeurs attitrés du Roi à Lyon pendant la quasi-totalité du XVIIIe siècle

    Heterogeneity of logistics facilities: an issue for a better understanding and planning of the location of logistics facilities

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    International audience; In the last few years, the issue of the location of logistics activities emerged in the literature, in Europe and in the United States, especially from the perspective of logistics spatial dynamics as logistics sprawl. These issues of spatial dynamics question urban policies, because they underline the lack of interest in freight in the planning process. Indeed, one of the major issues in planning logistics facilities is the lack of a good understanding of the logistics sector: it is difficult to guide public action in the absence of detailed and precise data. The great heterogeneity of logistics facilities is often underestimated by public policies. The visibility of some sectors in public policies or academic literature, as parcel industry or e-commerce, hides other sides of logistics as an industry sector. With this paper we underline differences in the location of facilities, which translates into a difficult implementation of public policies to regulate logistics sprawl in the case of the Paris region. This paper studies precisely the location of the warehouses and terminals, and their place in the spatial organization of logistics facilities in the Paris Region. In particular, we compare the location of mass retail and wholesale trade facilities, logistics provider's facilities and parcel's industry facilities. Document type: Articl

    Enhancement of cytokine-driven NK cell IFN-γ production after vaccination of HCMV infected Africans

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    Human cytomegalovirus (HCMV) infection drives the phenotypic and functional differentiation of NK cells, thereby influencing the responses of these cells after vaccination. NK cell functional differentiation is particularly advanced in African populations with universal exposure to HCMV. To investigate the impact of advanced differentiation on vaccine-induced responses, we studied NK-cell function before and after vaccination with Trivalent Influenza Vaccine (TIV) or diphtheria, tetanus, pertussis, inactivated poliovirus vaccine (DTPiP) in Africans with universal, lifelong HCMV exposure. In contrast to populations with lower prevalence of HCMV infection, no significant enhancement of NK-cell responses (IFN-γ, CD107a, CD25) occurred after in vitro re-stimulation of post-vaccination NK cells with TIV or DTPiP antigens compared to pre-vaccination baseline cells. However, both vaccinations resulted in higher frequencies of NK cells producing IFN-γ in response to exogenous IL-12 with IL-18, which persisted for up to 6 months. Enhanced cytokine responsiveness was restricted to less differentiated NK cells, with increased frequencies of IFN-γ+ cells observed within CD56bright CD57- , CD56dim CD57- NKG2C- and CD56dim CD57- NKG2C+ NK-cell subsets. These data suggest a common mechanism whereby different vaccines enhance NK cell IFN-γ function in HCMV infected donors and raise the potential for further exploitation of NK cell "pre-activation" to improve vaccine effectiveness

    Candidate Predisposition Variants in Kaposi Sarcoma as Detected by Whole-Genome Sequencing

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    Familial clustering of classic Kaposi sarcoma (CKS) is rare with, approximately 100 families reported to date. We studied 2 consanguineous families, 1 Iranian and 1 Israeli, with multiple cases of adult CKS and without overt underlying immunodeficiency. We performed genome-wide linkage analysis and whole-genome sequencing to discover the putative genetic cause for predisposition. A 9-kb homozygous intronic deletion in RP11-259O2.1 in the Iranian family and 2 homozygous variants, 1 in SCUBE2 and the other in CDHR5, in the Israeli family were identified as possible candidates. The presented variants provide a robust starting point for validation in independent samples.Peer reviewe

    Effect of CMV and Aging on the Differential Expression of CD300a, CD161, T-bet, and Eomes on NK Cell Subsets

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    Natural killer cells are innate lymphoid cells involved in the defence against virus-infected cells and tumour cells. NK cell phenotype and function is affected with age and CMV latent infection. Aging affects the frequency and phenotype of NK cells and CMV infection also contributes to these alterations. Thus, a reduction of CD56bright NK cell subpopulation associated with age and an expansion of memory-like NK cells CD56dimCD57+NKG2C+ probably related to CMV-seropositivity have been described. NK cells express T-bet and Eomes transcription factors that are necessary for the development of NK cells. Here we analyse the effect of age and CMV-seropositivity on the expression of CD300a and CD161 inhibitory receptors and T-bet and Eomes transcription factors in NK cell subsets defined by the expression of CD56 and CD57. CD300a is expressed by the majority of NK cells. CD56bright NK cells express higher levels of CD300a than CD56dim NK cells. An increase in the expression of CD300a was associated with age whereas a decreased expression of CD161 in CD56dim NK cells was associated with CMV-seropositivity. In CD56dim NK cells an increased percentage of CD57+CD300a+ and a reduction in the percentage of CD161+CD300a+ cells were found to be associated with CMV-seropositivity. Regarding T-bet and Eomes transcription factors, CMV-seropositivity was associated with a decrease of T-bethi in CD56dimCD57+ NK cells from young individuals whereas Eomes expression was increased with CMV-seropositivity in both CD56bright and CD56dimCD57+/− (from middle-age and young individuals, respectively) and was decreased with ageing in all NK subsets from the three group of age. In conclusion, CMV infection and age induce significant changes in the expression of CD300a and CD161 in NK cell subsets defined by the expression of CD56 and CD57. T-bet and Eomes are differentially expressed on NK cell subsets and their expression is affected by CMV latent infection and ageing
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