2 resultados para Verification and validation technology

em Université de Lausanne, Switzerland


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The aim of this study was to present the initial validation of a new questionnaire, the Transition to Retirement Questionnaire (TRQ) and to study its relationship with resistance to change and personality dimensions. Based on Schlossberg's typology of the retired, the TRQ is designed to assess five dimensions related to personal perceptions of transition to retirement, retirement, and personal plans and activities. The sample consisted of 1,054 professionally active or retired adults from the Swiss French-speaking Canton of Vaud. Exploratory principal components and confirmatory factor analyses highlighted a five-factor solution that fit coherently with Schlossberg's typology. Moreover, TRQ dimensions were related to resistance to change tendencies and personality dimensions. The TRQ seems to be an interesting tool for use in research but also for interventions with young retirees or people preparing for retirement.

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B7-H4 (VTCN1, B7x, B7s) is an inhibitory modulator of T-cell response implicated in antigen tolerization. As such, B7-H4 is an immune checkpoint of potential therapeutic interest. To generate anti-B7-H4 targeting reagents, we isolated antibodies by differential cell screening of a yeast-display library of recombinant antibodies (scFvs) derived from ovarian cancer patients and we screened for functional scFvs capable to interfere with B7-H4-mediated inhibition of antitumor responses. We found one antibody binding to B7-H4 that could restore antitumor T cell responses. This chapter gives an overview of the methods we developed to isolate a functional anti-B7-H4 antibody fragment.