803 research outputs found
Information system for tablet identification (ISTI)
Poster presented at the 4th International Congress of CiiEM - "Health, Well-being and Ageing in the XXI Century. 2-5 June 2019, Campus Egas Moniz, Monte de Caparica, PortugalN/
Omacetaxine may have a role in chronic myeloid leukaemia eradication through downregulation of Mcl-1 and induction of apoptosis in stem/progenitor cells
Chronic myeloid leukaemia (CML) is maintained by a rare population of tyrosine kinase inhibitor (TKI)-insensitive malignant stem cells. Our long-term aim is to find a BcrAbl-independent drug that can be combined with a TKI to improve overall disease response in chronic-phase CML. Omacetaxine mepesuccinate, a first in class cetaxine, has been evaluated by clinical trials in TKI-insensitive/resistant CML. Omacetaxine inhibits synthesis of anti-apoptotic proteins of the Bcl-2 family, including (myeloid cell leukaemia) Mcl-1, leading to cell death. Omacetaxine effectively induced apoptosis in primary CML stem cells (CD34<sup>+</sup>38<sup>lo</sup>) by downregulation of Mcl-1 protein. In contrast to our previous findings with TKIs, omacetaxine did not accumulate undivided cells <i>in vitro</i>. Furthermore, the functionality of surviving stem cells following omacetaxine exposure was significantly reduced in a dose-dependant manner, as determined by colony forming cell and the more stringent long-term culture initiating cell colony assays. This stem cell-directed activity was not limited to CML stem cells as both normal and non-CML CD34<sup>+</sup> cells were sensitive to inhibition. Thus, although omacetaxine is not leukaemia stem cell specific, its ability to induce apoptosis of leukaemic stem cells distinguishes it from TKIs and creates the potential for a curative strategy for persistent disease
Information System for Tablets Identification (ISTI)
Abstract in proceedings of the Fourth International Congress of CiiEM: Health, Well-Being and Ageing in the 21st Century, held at Egas Moniz’ University Campus in Monte de Caparica, Almada, from 3–5 June 2019.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.info:eu-repo/semantics/publishedVersio
Los patines como contenido de educación fÃsica en primaria: desarrollo del perfil competencial
Las actividades fÃsicas con patines ofrecen grandes posibilidades pedagógicas para desarrollar en el área de Educación FÃsica (EF). El objetivo de este trabajo es presentar una propuesta didáctica coherente basada en las actividades fÃsicas con patines para los tres últimos cursos de la etapa de Educación Primaria. Se comienza con el desarrollo de los aprendizajes fundamentales hasta la adquisición de los aprendizajes especÃficos del patinaje artÃstico y del hockey sobre patines. Para ello se va utilizar el juego como eje central en el proceso de enseñanza-aprendizaje. La metodologÃa está basada en la enseñanza comprensiva y constructivista del deporte.
Skates-based physical activities have a great pedagogy potential to develop in the area of Physical Education (PE). The purpose of this study is to present a consistent didactic proposal based on skates-based physical activities for the last three years of Elementary School. It starts with the fundamental learning development of figure skating and roller hockey until the acquisition of the more specific learning. Game is being used as key element during the teaching-learning process. The methodological aspects are based on comprehensive and constructivist teaching of sport
Physico-chemical characterization of chitosan-based edible films incorporating bioactive compounds of different molecular weight
Chitosan packaging films containing different bioactive compounds (a peptide fraction from whey protein
concentrate (WPC) hydrolysate, glycomacropeptide (GMP) and lactoferrin) were produced and their
mechanical and barrier properties were evaluated. The molecular weight of protein-based compounds
was determined using SDS–PAGE. The addition of GMP and lactoferrin to chitosan film caused a significant
reduction of tensile strength and the elongation-at-break significantly increased with the incorporation
of lactoferrin. The addition of protein-based compounds also affected gas permeability: a
significant decrease in water vapor permeability was observed with the incorporation of lactoferrin; oxygen
permeability significantly decreased with the addition of GMP and lactoferrin and carbon dioxide
permeability significantly decreased with the incorporation of all of the protein-based compounds. Such
results were related with film’s hydrophilicity and crystallinity.
This manuscript contributes to the establishment of an approach to optimize edible films performance
based on physico-chemical properties, aiming at a higher benefit for the consumer.The authors gratefully acknowledge LoicHilliou for the fruitful discussions on the results and Ana Nicolau for helping in confocal analysis. The present work was supported by the project PTDC/AGR/ALI/67194/2006. The authors M.A. Cerqueira (SFRH/BD/23897/2005), M.C. Avides (SFRH/BPD/26913/2006) and M.A.C. Quintas (SFRH/BPD/41715/2007) were recipient of fellowships from the Fundacaopara a Ciencia e Tecnologia (FCT, Portugal)
Tratamiento de las disciplinas de raqueta y pala en educación fÃsica
Los deportes de raqueta y pala albergan grandes posibilidades pedagógicas sensibles de desarrollar en el área de Educación FÃsica. Desde la Educación Primaria al Bachillerato pasando por la Educación Secundaria Obligatoria, estas disciplinas pueden y deben abordarse en nuestra área. En su tratamiento pedagógico se deben determinar tanto los objetivos didácticos como los aprendizajes especÃficos. La metodologÃa a seguir parte de unos ejes de progreso que irán desarrollándose a lo largo de toda la etapa educativa. Finalmente, la evaluación cierra el proceso a partir de unas orientaciones especÃficas para los deportes de raqueta y pala, asà como con la selección de los instrumentos de evaluación idóneos.
Racket sports have a great potential for pedagogy in Physical Education. All these disciplines should and could be taught in all kind of education, from primary till secondary school to the higher education. The didactic and specific learning objectives must be identified in the pedagogical treatment of racket sports. The methodological aspects are based on some fundamental axes which will be developed throughout the whole stage of education. Eventually, the evaluation process closes the circle with some specific orientations for racket sports as well as the selection of suitable evaluation methods
The dependence of the measured asymmetry : the test of the Bjorken sum rule
We analyse the proton and deutron data on spin dependent asymmetry
supposing the DIS structure functions and
have the similar -dependence. As a result, we have obtained
that at and
at , what is in the
best agreement with the Bjorken sum rule predictions.Comment: LaTeX, 5 pages, no figures, to be published in JETP Letter
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