Search results for "Himera"

Entrando in città dopo la distruzione: Ermocrate e i proasteia di Himera

2023

Prendendo spunto dal testo di Diodoro, che cita i proasteia di Himera, dove Ermocrate si accampò dopo la distruzione della città nel 409 a.C., si prende in esame il “quartiere portuale” al di là del fiume, analizzando le caratteristiche insediative e le funzioni degli edifici, come sono state delineate dagli scavatori alcuni anni fa. Si giunge alla conclusione che il “quartiere” sia interpretabile come un proasteion ateichiston, una vera e propria proiezione dell’abitato fuori le mura, con valenze più complesse di un semplice sobborgo commerciale. Il confronto con i proasteia di Siracusa permette di delineare la complessità delle motivazioni che giustificano la proiezione delle città oltre …

Rilievo fittile da Himera

2016

Studio su un rilievo fittile di tradizione locrese.

Contatti culturali e identità nel territorio imerese

2009

La valle del S. Leonardo. Complessità di un territorio nella chora di Himera

2009

Tra mito e rito: aspetti della cultura figurativa imerese nel tardo V secolo a.C.

2015

This study revisiting finds with figural decoration from early excavations of the residential area of the town of Himera has sparked a new approach to reconstructing the figural repertoire, mythographic heritage and spectrum of ritual and sacred practices wihch must have characterised this colonial city before its destruction at the end of the 5th century B.C. The author has studied, in particular, various clay arulae and the figural decoration on vases painted by the Himera Painter, which were used in the ritual life of the domestic quarters of the town and whose subject matter appears to be derived exclusively from the sagas of Thessaly and Boeotia. The main theme of the illustrated myths…

Control of cytomegalovirus in bone marrow transplantation chimeras lacking the prevailing antigen-presenting molecule in recipient tissues rests prim…

1998

ABSTRACT Cytomegalovirus (CMV) infection during the transient immunodeficiency after bone marrow transplantation (BMT) develops into disease unless antiviral CD8 T cells are restored in due course. Histoincompatibility between donor and recipient is associated with increased risk. Complications may include a rejection response against the foreign major histocompatibility complex (MHC) antigens and a lack of antiviral control resulting from a misfit between donor-derived T cells and the antigenic viral peptides presented in recipient tissues. Here we have established a murine model of CMV disease after experimental BMT performed across a single MHC class I disparity. Specifically, BALB/c bon…

Intrathymic tolerance induction: determination of tolerance to class II major histocompatibility complex antigens in maturing T lymphocytes by a bone…

1987

Two new experimental approaches were established to analyse the influence of the thymus on tolerance induction to major histocompatibility complex (MHC) antigens: The aim of the first experiment was to perform successful transplantation of adult allogeneic thymus tissue into nude mice, an attempt that has been unsuccessful in the past. Tolerance for the MHC genotype of a prospective thymus graft recipient (A) was induced in mice of strain B by injection of (A X B) splenocytes during the neonatal period. Adult thymic tissue obtained from these allogeneic donors (B) were grafted into the nude mice of strain A. The allogeneic thymus was accepted by the nude mice and immunoreconstitution was ac…

Strong reproductive barriers in a narrow hybrid zone of West-Mediterranean green toads (Bufo viridis subgroup) with Plio-Pleistocene divergence

2010

Abstract Background One key question in evolutionary biology deals with the mode and rate at which reproductive isolation accumulates during allopatric speciation. Little is known about secondary contacts of recently diverged anuran species. Here we conduct a multi-locus field study to investigate a contact zone between two lineages of green toads with an estimated divergence time of 2.7 My, and report results from preliminary experimental crosses. Results The Sicilian endemic Bufo siculus and the Italian mainland-origin B. balearicus form a narrow hybrid zone east of Mt. Etna. Despite bidirectional mtDNA introgression over a ca. 40 km North-South cline, no F1 hybrids could be found, and nu…

Bone morphogenetic protein-4 is required for mesoderm formation and patterning in the mouse.

1995

Bone morphogenetic protein-4 (BMP-4) is a member of the TGF-beta superfamily of polypeptide signaling molecules, closely related to BMP-2 and to Drosophila decapentaplegic (DPP). To elucidate the role of BMP-4 in mouse development the gene has been inactivated by homologous recombination in ES cells. Homozygous mutant Bmp-4tm1blh embryos die between 6.5 and 9.5 days p.c., with a variable phenotype. Most Bmp-4tm1blh embryos do not proceed beyond the egg cylinder stage, do not express the mesodermal marker T(Brachyury), and show little or no mesodermal differentiation. Some homozygous mutants develop to the head fold or beating heart/early somite stage or beyond. However, they are development…

The Major Conformational IgE-binding Epitopes of Hevein (Hev b6.02) Are Identified by a Novel Chimera-based Allergen Epitope Mapping Strategy

2002

A novel approach to localize and reconstruct conformational IgE-binding epitope regions of hevein (Hev b6.02), a major natural rubber latex allergen, is described. An antimicrobial protein (AMP) from the amaranth Amaranthus caudatus was used as an immunologically non-IgE-binding adaptor molecule to which terminal or central parts of hevein were fused. Hevein and AMP share a structurally identical core region but have different N-terminal and C-terminal regions. Only 1 of 16 hevein-allergic patients showed weak IgE binding to purified native or recombinant AMP. Chimeric AMP with the hevein N terminus was recognized by IgE from 14 (88%) patients, and chimeric AMP with the hevein C terminus wa…