394 research outputs found
The urgency of doing: evaluating the validity of an implementation and sustainability measure for school-wide prevention programs
No full textSchool-based prevention and promotion interventions (SBPPI) teach students how to recognize and manage emotions, solve problems effectively, establish positive relationships with others, and develop prosocial attitudes. When implemented effectively, SBPPI have been shown to improve desirable outcomes (e.g., commitment to community, standardized achievement test scores, and attendance) and to reduce undesirable outcomes (e.g., suspensions, drug and alcohol use, and aggressive and violent behavior). Unfortunately, our understanding of how to effectively implement and sustain SBPPI outside of well-controlled conditions is lacking. In order to help build a science of implementation and sustainability, this thesis presents a conceptual framework and a measurement tool for effective SBPPI implementation. The framework differentiates among various phases of implementation, ecological levels surrounding implementation in schools, and factors in the system of implementation that facilitate fidelity and sustainability. This framework is measured by the “Schools Implementing Towards Sustainability” (SITS) scale, which is designed to be “user-friendly” in field settings by being viable and scalable. Analyses from a diverse sample of 157 schools implementing Social-Emotional Character Development (SECD), a type of SBPPI, reveal that the SITS has good reliability, good concurrent and construct validity, and promising predictive validity. The findings of the SITS may help advance both the science of school-based interventions and the science of implementation and dissemination as a whole by demonstrating how to bridge the science/“real world” gap.M.S.Includes bibliographical referencesby Dominic C. Mocer
Gendering the Diaspora: Zimbabwean Migrants in Britain
No full textThis article analyses the performative and lived realities of the Zimbabwean diaspora in Britain. The author explores the way in which both public and private spaces of the diaspora are important arenas in the construction and reconstruction of gendered identities. It is based on multisited ethnography, comprising 33 in-depth interviews and participant observation in four research sites, and draws upon concepts of diaspora and transnationalism as theoretical and analytical frameworks. The findings suggest that the challenges to patriarchal traditions in the hostland in terms of women's primary migrant status and financial autonomy, the different labour market experiences of men and women, and egalitarian laws have caused tensions and conflict within diaspora households. The article examines how men use religious and social spaces, which provide for the affirmation of more traditional roles and relations, as a form of public resistance to changes happening within the domestic sphere
Immune inflammatory mechanisms in Parkinson's Disease and experimental allergic nigral damage
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Aspects of a Watermark Solution
No full textAlthough watermarking is a relatively new technology, there are many ways of applying it on an electronic data set with the purpose of ensuring copyright integrity and authenticity of the electronic data. But, bearing in mind the evolution of information technology and of communication, a watermark may be the target of several attacks which aim at its robustness, its form and even at its removal. In order to reduce these threats, this paper proposes a solution - digital watermarking completed by a hash function which has an important role in the authenticity of the content of a message and in the security of the transmission of this message through computer networks which are the main support of collaborative systems.Digital Watermarking, Hash Functions, Digital Information Security, Collaborative Systems
A generalization of manifolds with corners
No full textIn conventional Differential Geometry one studies manifolds, locally modelled on , manifolds with boundary, locally modelled on , and manifolds with corners, locally modelled on . They form categories . Manifolds with corners have boundaries , also manifolds with corners, with . We introduce a new notion of 'manifolds with generalized corners', or 'manifolds with g-corners', extending manifolds with corners, which form a category with . Manifolds with g-corners are locally modelled on for a weakly toric monoid, where for . Most differential geometry of manifolds with corners extends nicely to manifolds with g-corners, including well-behaved boundaries . In some ways manifolds with g-corners have better properties than manifolds with corners; in particular, transverse fibre products in exist under much weaker conditions than in . This paper was motivated by future applications in symplectic geometry, in which some moduli spaces of -holomorphic curves can be manifolds or Kuranishi spaces with g-corners (see the author arXiv:1409.6908) rather than ordinary corners. Our manifolds with g-corners are related to the 'interior binomial varieties' of Kottke and Melrose in arXiv:1107.3320
Correction to: Why nature matters:A systematic review of intrinsic, instrumental, and relational values
No full textThis is a correction to: Austin Himes, Barbara Muraca, Christopher B Anderson, Simone Athayde, Thomas Beery, Mariana Cantú-Fernández, David González-Jiménez, Rachelle K Gould, A P Hejnowicz, Jasper Kenter, Dominic Lenzi, Ranjini Murali, Unai Pascual, Christopher Raymond, Annalie Ring, Kurt Russo, Aibek Samakov, Sanna Stålhammar, Henrik Thorén, EgleéZent, Why nature matters: A systematic review of intrinsic, instrumental and relational values, BioScience, Volume 74, Issue 1, January 2024, Pages 25-43, https://doi.org/10.1093/biosci/biad109 In the original publication of the manuscript, there was a typo- graphical error in the name of the 19th author. This should read: "Henrik Thorén." The emendation has been made in the article.</p
PET Tau and Amyloid-β Burden in Mild Alzheimer's Disease: Divergent Relationship with Age, Cognition, and Cerebrospinal Fluid Biomarkers.
No full textBACKGROUND: Combining PET amyloid-β (Aβ) and tau imaging may be critical for tracking disease progression in Alzheimer's disease (AD). OBJECTIVE: We sought to characterize the relationship between Aβ and tau ligands as well as with other measures of pathology. METHODS: We conducted a multi-center observational study in early AD (MMSE >20) participants aged 50 to 85 y. The schedule included cognitive assessments (ADAS-Cog) and CSF measurement of Aβ and tau at baseline and 6 months; PET-CT imaging with Aβ ([18F]AV45) and tau ([18F]AV1451) ligands at baseline. RESULTS: 22 participants took part in the study with 20 completing its 6-month duration and 12 having both tau and amyloid PET. The PET biomarker analysis revealed a strong negative correlation between age and tau in multiple regions. Entorhinal cortex tau and age interacted significantly in terms of cognitive change over 6 months which may have been to older participants deteriorating faster despite lower levels of cortical tau. Cortical Aβ associated with entorhinal cortex tau while CSF tau/Aβ ratio correlated strongly with cortical tau but not Aβ. CONCLUSION: The negative relationship between age and cortical tau whereby younger patients with mild AD had relatively greater tau burden is potentially important. It suggests that younger-age onset AD may be primarily driven by tau pathology while AD developing later may depend on a multitude of pathological mechanisms. These data also suggest that PET-tau performs better than PET-amyloid in predicting the best validated AD diagnostic marker- the CSF total tau/Aβ ratio
When Do Children Dislike Ingroup Members? Resource Allocation from Individual and Group Perspectives
No full textDo children like ingroup members who challenge group norms about resource allocation? Further, do children evaluate from their own individual perspective? Participants (N = 381), aged 9.5 and 13.5 years, evaluated members of their own group who deviated from group norms about resource allocation by either: (1) advocating for equal allocation in contrast to the group norm of inequality; or (2) advocating for inequality when the group norm was to divide equally. With age, participants differentiated their own individual favorability from the group's favorability of deviant members of the ingroup. Further, when deciding between group loyalty and equal allocation, children and adolescents gave priority to equality, rejecting group decisions to dislike ingroup members who advocated for equality
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