Difusión y consumo de la fotografía etnográfica chaqueña. En: Avá, nº 16

El trabajo reflexiona sobre la experiencia de difusión y consumo de dos colecciones fotográficas del siglo XX: la primera reúne las imágenes tomadas por Grete Stern entre 1958-1964 a pueblos originarios del Gran Chaco y la segunda, las fotos obtenidas por Pedro Luis Raota cerca de 1978 en las colonias inmigrantes de Resistencia y localidades aledañas. Ambas colecciones atraviesan procesos disímiles de circulación y exhiben desde ópticas e intereses diferentes, realidades contrapuestas del Chaco. Por ello, el trabajo explora algunos de los contextos subjetivos y colectivos en los que ambas colecciones fueron utilizadas respectivamente como herramienta de investigación académica y material de exhibición estética. Se analiza especialmente la apropiación de estas imágenes por parte del sector hegemónico y se discute en qué medida las colecciones pertenecen a los sujetos representados y/o sus descendientes y por lo tanto deben ser “devueltas” a ellos.

Definition of MHC and T cell receptor contacts in the HLA-DR4restricted immunodominant epitope in type II collagen and characterization of collagen-induced arthritis in HLA-DR4 and human CD4 transgenic mice

Rheumatoid arthritis (RA) is an autoimmune disease associated with the HLA-DR4 and DR1 alleles. The target autoantigen(s) in RA is unknown, but type II collagen (CII) is a candidate, and the DR4- and DR1-restricted immunodominant T cell epitope in this protein corresponds to amino acids 261–273 (CII 261–273). We have defined MHC and T cell receptor contacts in CII 261–273 and provide strong evidence that this peptide corresponds to the peptide binding specificity previously found for RA-associated DR molecules. Moreover, we demonstrate that HLA-DR4 and human CD4 transgenic mice homozygous for the I-Abβ0 mutation are highly susceptible to collagen-induced arthritis and describe the clinical course and histopathological changes in the affected joints.

Efficient construction of a large nonimmune phage antibody library: The production of high-affinity human single-chain antibodies to protein antigens

A large library of phage-displayed human single-chain Fv antibodies (scFv), containing 6.7 × 109 members, was generated by improving the steps of library construction. Fourteen different protein antigens were used to affinity select antibodies from this library. A panel of specific antibodies was isolated with each antigen, and each panel contained an average of 8.7 different scFv. Measurements of antibody–antigen interactions revealed several affinities below 1 nM, comparable to affinities observed during the secondary murine immune response. In particular, four different scFv recognizing the ErbB2 protein had affinities ranging from 220 pM to 4 nM. Antibodies derived from the library proved to be useful reagents for immunoassays. For example, antibodies generated to the Chlamydia trachomatis elementary bodies stained Chlamydia-infected cells, but not uninfected cells. These results demonstrate that phage antibody libraries are ideally suited for the rapid production of panels of high-affinity mAbs to a wide variety of protein antigens. Such libraries should prove especially useful for generating reagents to study the function of gene products identified by genome projects.

Gedichte /

Mode of access: Internet.

Suchende Seelen : drei Novellen /

Das Leid -- Die Lüge -- Die Krisis.

Friedrich Spielhagens sa mmtliche romane ...

Vol. 23-27 have title: Friedrich Spielhagens romane. Neue folge. 1.-5. bd. Each vol. has both general and special t.p.

Rethinking Care Through Social Reproduction: Articulating Circuits of Migration

Care has come to dominate much feminist research on globalized migrations and the transfer of labor from the South to the North, while the older concept of reproduction had been pushed into the background but is now becoming the subject of debates on the commodification of care in the household and changes in welfare state policies. This article argues that we could achieve a better understanding of the different modalities and trajectories of care in the reproduction of individuals, families, and communities, both of migrant and nonmigrant populations by articulating the diverse circuits of migration, in particular that of labor and the family. In doing this, I go back to the earlier North American writing on racialized minorities and migrants and stratified social reproduction. I also explore insights from current Asian studies of gendered circuits of migration connecting labor and marriage migrations as well as the notion of global householding that highlights the gender politics of social reproduction operating within and beyond households in institutional and welfare architectures. In contrast to Asia, there has relatively been little exploration in European studies of the articulation of labor and family migrations through the lens of social reproduction. However, connecting the different types of migration enables us to achieve a more complex understanding of care trajectories and their contribution to social reproduction.