3,079 research outputs found
Concomitant use of isotretinoin and lasers with implications for future guidelines: An updated systematic review
It is generally believed that intervention on skin while on isotretinoin or within 6 to 12 months after treatment can lead to prolonged healing and abnormal scarring. The objective of this systematic review is to evaluate the body of evidence on concomitant use of isotretinoin and lasers for adverse events as a consequence of treatment. A PRISMA‐compliant systematic review (Systematic Review Registration Number: CRD42017056492) of 12 electronic databases was conducted for the terms “laser” and “isotretinoin” or associated brand names from inception until June 2020. Subsequent reference search of studies meeting predefined inclusion criteria were conducted, and all articles were evaluated for bias and assigned levels of evidence to facilitate data synthesis. The search strategy produced 29 studies. Of 871 patients included in the studies of interest, 12 experienced transient adverse effects that resolved spontaneously, and only two presented with keloid formation, both from case reports. This systematic review suggests the risk associated with concomitant isotretinoin and laser use is small to absent. Further studies are needed, but these results suggest that current contraindications may be overly cautious.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/163929/1/dth14022.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/163929/2/dth14022_am.pd
Civic Education and Intercultural issues in Switzerland : Psychosocial dimensions of an education to "otherness"
In contemporary democratic societies that deal with cultural and linguistic diversity, education faces new challenges such as how to promote a shared knowledge and competence framework about “citizenship,” how to prepare the young generation to enter a complex world, and how to help immigrant students to integrate into the school system. Some of the European recommendations focus on the importance of promoting “intercultural education”. However, so far little is known about concrete practices and their outcomes. This paper aims at documenting and providing elements of reflections about the difficulties and contradictions faced by both teachers and students involved in pedagogical intercultural activities in Switzerland. From the results of a qualitative research based on a sociocultural perspective, identity and institutional issues of addressing “otherness” in school are discussed. It stresses the importance of a frame in order to allow elaboration and transformation of personal and emotional experiences into thinking and reflexive processes
Can we Learn through Disagreements ? A Sociocultural Perspective on Argumentative Interactions in a Pedagogical Setting in Higher Education
It has been well established by educational research that social interactions play a role in learning and development. In this paper, we draw on recent advances in a sociocultural perspective in psychology that have showed the dialogical dimension of learning, and allowed to consider social interactions as a matrix for its development rather than a variable merely “influencing” psychological processes
Qu'est-ce qui se développe dans et par une formation-action ? Analyse des discordances comme leviers de développement dans un projet participatif de formation à Madagascar
Les défis de la diversité culturelle dans le discours enseignant. Analyse d'entretiens réalisés auprès de douze enseignantes de Suisse romande
Rethinking Collaborative Learning Through Participation in an Interdisciplinary Research Project : Tensions and Negotiations as Key Points in Knowledge Production
Gravitomagnetic Resonance Shift due to a Slowly Rotating Compact Star
The effect of a slowly rotating mass on a forced harmonic oscillator with two
degrees of freedom is studied in the weak field approximation. It is found that
according to the general theory of relativity there is a shift in the resonat
frequency of the oscillator which depends on the density and rotational
frequency of the gravitational source. The proposed shift is quite small under
normal physical situations however it is estimated that for compact x-ray
sources such as white dwarfs, pulsars, and neutron stars the shift is quite
appreciable.Comment: 8 pages, 2 figures, Accepted for Publication in Inter. Journal of
Modern Physics
Experimental Investigation of the Effects of Hydrogen Addition with Diesel on Performance and Emission of a Single Cylinder Diesel Engine
Need of the hour in present day scenario is to cope with energy crisis and human life in India and around the globe which is associated with depletion in the percentage of petroleum products and increase in the share of pollution caused due to emissions from diesel operated engines. This work tries to address these two major concern with the use of alternative fuel for diesel engine .A lot of research is going on the use of alternative and innovative fuels in the word, among those one of the most promising alternative ought to be hydrogen for being a clean and non carbon in nature. However various ongoing researches shown hydrogen blending to be proved to show positive effect on performance and emission of a diesel engine, which has to be carried forwarded. In this work a flow rate of 4 lpm, 6 lpm and 8 lpm respectively blend of hydrogen proportion where used along which diesel at loading at a constant speed of 1500 rpm to determine various engine performance parameters such as brake thermal efficiency, brake specific fuel consumption ,brake power, indicated thermal efficiency, mechanical efficiency, volumetric efficiency, torque output and power output. along with these various emission parameters such as percentage of CO,HC ,NOx gas temperature with varying blend proportion are also observed and compared
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