872 research outputs found
The Effect of Minimum Wages on the Employment and Earnings of South Africa's Domestic Service Workers
No full textMinimum wages have been in place for South Africa's one million domestic service workers since November of 2002. Using data from seven waves of the Labour Force Survey, this paper documents that the real wages, average monthly earnings, and total earnings of all employed domestic workers have risen since the regulations came into effect, while hours of work per week and employment have fallen. Each of these outcomes can be linked econometrically to the arrival of the minimum wage regulations. The overall estimated elasticities suggest that the regulations should have reduced poverty somewhat for domestic workers, although this last conclusion is the least robust.minimum, wage, south africa, hertz, earnings, hours
Engagements : penser la responsabilité de l’anthropologue avec Ellen Hertz
No full textQu’est-ce que l’engagement en anthropologie ? Comment s’engage-t-on aujourd’hui ? En s’appuyant sur le parcours de notre collègue et amie Ellen Hertz, cet ouvrage souhaite renouveler la réflexion sur ces questions. Il montre l’intérêt de penser l’engagement de manière élargie, non seulement comme un souci de rendre la recherche pertinente et accessible à un large public, mais aussi comme une responsabilité exercée au quotidien au sein des institutions académiques et au-delà. Si Ellen Hertz s’est engagée par ses choix de recherche centrés sur l’analyse du pouvoir, sa trajectoire est aussi faite d’engagements a priori plus ordinaires – pédagogiques, diplomatiques, relationnels et amicaux, de mentoring et d’encadrement – la plupart du temps absents des débats sur le sujet. S’inspirant de cette trajectoire, onze contributions nous invitent à explorer et à valoriser la diversité des manières de s’engager, loin d’une science uniquement motivée par la course aux publications. L’engagement s’y dessine comme un art aux facettes multiples, qui se déploie tant à partir de positions prestigieuses d’autorité et d’expertise, que dans des activités académiques et administratives peu visibles, voire ingrates. Un art qui repose sur l’indignation tout comme sur l’humour, la légèreté, le care et l’amitié, mais qui souvent suppose une disponibilité totale dont les coûts et les limites sont également abordés dans l’ouvrage
L'androcène ::du rôle du patriarcat dans l'appropriation de la nature
No full textL'Anthropocène aurait-elle un genre ? Ellen Hertz, professeure d'ethnologie à l'Université de Neuchâtel, Lucile Ruault, chargée de recherche au CNRS et Hélène Martin, professeure en études genre à la Haute école de travail social et de la santé de Lausanne, ont coordonné le 40e volume de la revue Nouvelles Questions Féministes sur « L'Androcène ». Elles y explorent les relations entre modernité industrielle, destruction environnementale et patriarcat
The Effects of Minimum Wages on the Employment and Earnings of South Africa's Domestic Service Workers
No full textMinimum wages have been in place for South Africa’s one million domestic service workers since November of 2002. Using data from seven waves of the Labour Force Survey, this paper documents that the real hourly wages, average monthly earnings, and total earnings of all employed domestic workers have risen since the regulations came into effect, while hours of work per week and employment have fallen
Textieltechniek en Vezeltechnologie in TH Delft Afdeling WSV
No full textTweeluik over geschiedenis en werkzaamheden van de vakgroep “Textieltechniek en Vezeltechnologie” van de afdeling der Werktuigbouwkunde en Scheepsbouwkunde (W&S, ook wel WSV) van de TH Delft. Het verscheen in de nieuwsbrief Hertz Newsletter van de huidige sectie 3Me/PME/Engineering Mechanics, edities maart-april 2020 en mei-juni 2020.Mechanical, Maritime and Materials Engineerin
Matrimoine est-il le féminin de patrimoine ?
No full textInternational audienceSuite à la sortie du livre "Femmes, au château ! Reprendre le récit de Goutelas" (2025), une table ronde a été organisée à l'occasion des journées du patrimoine sur le site du centre culturel de rencontres de Goutelas (42130). La table-ronde proposait ainsi de revenir à la fois sur l'histoire de Goutelas depuis le début de sa restauration en 1961 et de l'invisibilisation des femmes des récits qui l'entourent. Cette histoire, qui apparait comme un reflet des mécanismes d'invisibilisation des femmes présents dans toutes les sphères de la société a ainsi permis de développer les thèmes plus généraux de l'émancipation, de la sororité et du matrimoine. La table ronde était composée de : - Ellen Hertz, anthropologue et spécialiste du matrimoine - Michèle Riot-Sarcey, historienne et professeure des université émérite - Agathe Rochet, doctorante en sociologue et co-autrice de l'ouvrage "Femmes, au château ! Reprendre le récit de Goutelas" La table ronde était présentée et modérée par Michel Rautenberg, anthropologue et professeur émérit
Translational studies of molecular interactions in Parkinson’s disease
No full textInteractions between molecules are the basis of cellular function. In disease, these tightly regulated systems are often disturbed. Parkinson’s disease (PD) is recognized by protein aggregates in the brain of erroneously interacting molecules, directly linking the clinical picture to the molecular mechanisms. The currently incomplete understanding of the mechanisms behind PD pathogenesis impedes the development of disease-modifying treatment and new targets are needed since today’s dopaminergic treatment does not fully alleviate the symptoms. G protein-coupled receptors (GPCRs) are a wide group of transmembrane receptors usually targeted by drugs due to their ability to convey extracellular information into definite cellular responses. This Thesis focuses on protein interactions, from cellular models of a Parkinson-linked GPCR, GPR37, to detection of nanoaggregates in serum from PD patients as a sign of disease.The main findings relate to the interactome of GPR37 as a factor regulating cell survival. GPR37 has been suggested to accumulate and cause dopaminergic cell death in PD when improperly folded but is able to elicit cytoprotective function when correctly matured and trafficked to the cell surface. We report that GPR37 interaction with ganglioside GM1-enriched lipid rafts and a proposed ligand prosaposin affects trafficking of GPR37 to the plasma membrane. Since the role of lipids in PD pathogenesis is increasingly acknowledged and GM1 has been suggested to slow down PD progression in clinical studies, we further studied the mechanism of the GPR37-GM1 interaction. We propose that exogenous GM1 treatment increase cellular resistance to a neurotoxin partly through a GPR37-dependent mechanism. This suggests yet another molecular mechanism of GM1 cytoprotection. Moreover, GPR37 has been suggested to be a modulator of dopaminergic transmission why we investigated the proposed interaction with dopamine D2 receptor (D2R) and GPR37 in live cells. The levels of heterodimerization where generally low in our cellular system. However, it could be augmented both by chaperone treatment, inducing trafficking of GPR37, and by clinically used dopamine agonist treatment. Shifting the heterodimerization level of GPCRs is known to alter molecular response. Therefore, the physiological outcome of this interaction needs to deciphered to understand effects and side effects of dopamine agonist treatment.We also investigate improper protein interactions as a potential biomarker in serum from PD patients by detection of β-sheet enriched nanoaggregates. We report a higher detected frequency of nanoamyloids in patients compared to healthy controls and a bimodal distribution of amyloid size in serum. However, the frequency of nanoamyloids did not correlate robustly with neither disease progression or disease symptoms. Potentially this is due to heterogeneity, both clinical and molecular, in the disease. This emphasizes the need of understanding the molecular interactions in a clinical context.List of scientific papersI. Gregorsson Lundius E, Vukojević V, Hertz E, Stroth N, Cederlund A, Hiraiwa M, Terenius L, Svenningsson P. GPR37 Protein Trafficking to the Plasma Membrane Regulated by Prosaposin and GM1 Gangliosides Promotes Cell Viability. Journal of Biological Chemistry. (2014) 289(8), 4660-73. https://doi.org/10.1074/jbc.M113.510883 II. Hertz E, Terenius L, Vukojević V, Svenningsson P. GPR37 and GPR37L1 Differently Interact With Dopamine 2 Receptors in Live Cells. Neuropharmacology. (2019) 152, 51-57. https://doi.org/10.1016/j.neuropharm.2018.11.009 III. Hertz E., Saarinen M., Svenningsson P. GM1 is Cytoprotective in GPR37-Expressing Cells and Down Regulates Signaling. [Manuscript]IV. Hertz E., Tiiman A*, Terenius L, Vukojević V, Svenningsson P. Increased Amyloid Nanoplaques in Serum from Patients with Parkinson’s Disease. [Manuscript]</p
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