18 research outputs found
Principios filosóficos del arte de América
Fil: Tousaint, Manuel.
Universidad Nacional Autónoma de Méxic
Systems of Oppression: The Impact of Discrimination on Latinx Immigrant Adolescents’ Well-Being and Development
With over 400 harmful immigration policy changes in the past 4 years, Latinx adolescents and families nationwide are developing within a context of extreme anti-immigrant sentiment (Dismantling and reconstructing the U.S. immigration system: A catalog of changes under the Trump presidency, Migration Policy Institute, 2020). This paper introduces the Multitiered Model of Oppression and Discrimination (MMOD), a conceptual model for understanding the impacts of multiple levels of discrimination on the well-being and development of Latinx immigrant adolescents. Interpersonal discrimination (Hispanic Journal of Behavioral Sciences, 2010, 32, 259), community-held stereotypes (Social Psychology of Education, 2001, 5, 201), institutional policies (Children and Youth Services Review, 2018, 87, 192), and structural practices (Journal of Criminal Justice, 2020, 66, 1) can negatively impact well-being and development among these adolescents. Culturally sustaining interventions, civic engagement and mobilization, and policies targeting inequitable policies and practices will provide healing and an avenue for liberation
Reaction-Diffusion Processes from Equivalent Integrable Quantum Chains
One-dimensional reaction-diffusion systems are mapped through a similarity
transformation onto integrable (and a priori non-stochastic) quantum chains.
Time-dependent properties of these chemical models can then be found exactly.
The reaction-diffusion processes related to free fermion systems with
site-independent interactions are classified. The time-dependence of the mean
particle density is calculated. Furthermore new integrable stochastic processes
related to the Heisenberg XXZ chain are identified and the relaxation times for
the particle density and density correlation for these systems are found.Comment: 67 pages, Latex, 3 eps figures. (final version, typos corrected
Aggregation with Multiple Conservation Laws
Aggregation processes with an arbitrary number of conserved quantities are
investigated. On the mean-field level, an exact solution for the size
distribution is obtained. The asymptotic form of this solution exhibits
nontrivial ``double'' scaling. While processes with one conserved quantity are
governed by a single scale, processes with multiple conservation laws exhibit
an additional diffusion-like scale. The theory is applied to ballistic
aggregation with mass and momentum conserving collisions and to diffusive
aggregation with multiple species.Comment: 18 pages, te
L'hyperoxalurie primitive de type 1, maladie des peroxysomes: conséquences thérapeutiques
SCOPUS: ar.jinfo:eu-repo/semantics/publishe
L'affaire du sang contaminé
Baudoin Jean, Gallerand Virginie, Tousaint Jérôme. L'affaire du sang contaminé. In: Revue juridique de l'Ouest, N° Spécial 1996. La santé. pp. 211-235
Anti-inflammatory effects of dietary phenolic compounds in an in vitro model of inflamed human intestinal epithelium
Phenolic compounds (PCs) are considered to possess anti-inflammatory properties and therefore were proposed as an alternative natural approach to prevent or treat chronic inflammatory diseases. However their effects are not fully understood, particularly at the intestinal level. To further understand their mode of action at the molecular level during intestinal inflammation, an in vitro model of inflamed human intestinal epithelium was established. Different representative dietary PCs, i.e. resveratrol, ellagic and ferulic acids, curcumin, quercetin, chrysin, (−)-epigallocatechin-3-gallate (EGCG) and genistein, were selected. To mimic intestinal inflammation, differentiated Caco-2 cells cultivated in bicameral inserts, in a serum-free medium, were treated with a cocktail of pro-inflammatory substances: interleukin (IL)-1β, tumor necrosis factor-α, interferon-γ and lipopolysaccharides. The inflammatory state was characterized by a leaky epithelial barrier (attenuation of the transepithelial electrical resistance) and by an over-expression at the mRNA and protein levels for pro-inflammatory markers, i.e. IL-6, IL-8 and monocyte chemoattractant protein-1 (MCP-1), quantified by ELISA and by gene expression analysis using a low-density array allowing the evaluation of expression level for 46 genes relevant of the intestinal inflammation and functional metabolism. Treatment with PCs, used at a realistic intestinal concentration, did not affect cell permeability. In inflamed cells, the incubation with genistein reduced the IL-6 and MCP-1 overproduction, to ca. 50% of the control, whereas EGCG provoked a decrease in the IL-6 and IL-8 over-secretion, by 50 and 60%, respectively. This occurred for both flavonoids without any concomitant inhibition of the corresponding mRNA expression. All the PCs generated a specific gene expression profile, with genistein the most efficient in the downregulation of the expression, or over-expression, of inflammatory genes notably those linked to the arachidonic metabolism pathway. In conclusion, this study provides evidence that genistein and EGCG downregulate the inflammatory response in inflamed intestinal epithelial cells by a pathway implicating largely a post-transcriptional regulatory mechanism
Experimental and numerical investigation of a short, thin-walled steel tube incremental forming process
International audienc
The lipoprotein lipase inhibitor ANGPTL3 is negatively regulated by thyroid hormone
International audienc