Search results for "api"

Case report di emangioma iuxtapapillare sporadico

2011

EMANGIOPERICITOMA INTRACRANICO PRESENTAZIONE DI UN CASO E REVISIONE DELLA LETTERATURA

2013

SCOPO DEL LAVORO Presentiamo a un caso di emangiopericitoma (HPC) in un paziente emicranico (maschio, 49 enne) che giunge alla nostra attenzione per l’insorgenza di confusione mentale e emisindrome sentitivo-motoria destra. Saranno inoltre riportati alcuni cenni sulla classificazione internazionale di questo raro tumore mesenchimale riccamente vascolarizzato, non tralasciando le possibili diagnosi differenziali con altri più comuni espansi di pertinenza extra- assiale. MATERIALI E METODI Dopo una prima valutazione in PS il paziente è stato sottoposto a esame TC encefalo e trasferito nel reparto di neurochirurgia. Successivamente ad un esame RM encefalo con sequenze morfologiche convenzion…

La capilla de la Virgen de los Ojos Grandes de la Catedral de Lugo, un espacio de exaltación mariana

1991

LA CAPILLA DE LOS OJOS GRANDES DE LA CATEDRAL DE LUGO ES UNA OBRA CUMBRE DEL BARROCO GALLEGO. LA CAPILLA EN SU CONJUNTO, SI BIEN SU PROGRAMA NO HA SIDO TOTALMENTE DESCIFRADO, ES UN EJEMPLO DEL SENTIDO TOTALIZADOR DEL ESPACIO MARIANO QUE ES LA CAPILLA BARROCA, Y ES UNA EXALTACION DE LA VIRGEN MARIA. EN EL PUDIERON INFLUIR DOS LIBROS CON GRABADOS: FARFAN Y SU OBRA SOBRE LAS FIESTAS DE CANONIZACION DE FERNANDO III (SEVILLA, 1671), Y P. LAIGLESIA Y SU OBRA FLORES DE MIRAFLORES (BURGOS, 1659). (A.B.C./L.A.G.)

Ovicide-induced serosa degeneration and its impact on embryonic development in Manduca sexta (Insecta: Lepidoptera)

2003

Abstract Eggs of Manduca sexta treated with the ovicide Ov. 165049 turn orange, and the embryos later die. The orange pigmentation is at first confined to the serosa, and is accompanied by pathological changes of serosal cells. Lipid vesicles aggregate and spindle-shaped electron-lucent vesicles—normally forming a single layer below the apical cell surface—greatly accumulate. The mitochondria swell considerably, and their matrices become electron-lucent. Subsequently, the serosal cells develop additional features of necrosis. They form many autophagic vacuoles which contain mostly degradating mitochondria, but also segregated rough endoplasmic reticulum (rER) and glycogen granules. The whol…

The p21-activated kinase Mbt is a component of the apical protein complex in central brain neuroblasts and controls cell proliferation

2013

The final size of the central nervous system is determined by precisely controlled generation, proliferation and death of neural stem cells. We show here that the Drosophila PAK protein Mushroom bodies tiny (Mbt) is expressed in central brain progenitor cells (neuroblasts) and becomes enriched to the apical cortex of neuroblasts in a cell cycle- and Cdc42-dependent manner. Using mushroom body neuroblasts as a model system, we demonstrate that in the absence of Mbt function, neuroblasts and their progeny are correctly specified and are able to generate different neuron subclasses as in the wild type, but are impaired in their proliferation activity throughout development. In general, loss of…

Disruption of apical-basal polarity of human embryonic stem cells enhances hematoendothelial differentiation

2007

Abstract During murine development, the formation of tight junctions and acquisition of polarity are associated with allocation of the blastomeres on the outer surface of the embryo to the trophoblast lineage, whereas the absence of polarization directs cells to the inner cell mass. Here, we report the results of ultrastructural analyses that suggest a similar link between polarization and cell fate in human embryos. In contrast, the five human embryonic stem cell (hESC) lines displayed apical-basal, epithelial-type polarity with electron-dense tight junctions, apical microvilli, and asymmetric distribution of organelles. Consistent with these findings, molecules that are components of tigh…

Light and electron microscopical demonstration of methylene blue accumulation sites in taste buds of fish and mouse after supravital dye injection

1995

Electron microscopical data regarding methylene blue staining of taste buds in the epithelia of the goldfish lip and the cirumvallate papilla of the mouse tongue after supravital dye application are presented for the first time. The ultrastructural details were compared with the corresponding light microscopical findings. The dye was applied in different concentrations by injection or in crystalline from directly to the surface of the tissues. Both methylene blue and tissue were simultaneously fixed by immersion in a paraformaldehyde-glutaraldehyde solution with the addition of phosphomolybdic acid. The ensuing dye precipitate was further stabilized by ammonium heptamolybdate. On the light …

Chameleonic appearance of caseous calcification of the mitral valve – still a problem for its appropriate management

2021

According to the research literature, the caseous calcification of the mitral annulus (CCMA) is a rare variant of the mitral annulus calcification (MAC) entity, described mostly in elderly women. The aim of this study was to present the case of a 53-year-old female patient with caseous calcification of the mitral valve annulus and posterior cusp, which was diagnosed as papillary fibroelastoma. An echo-dense and quasi-homogeneous tumoral mass, measuring 1.6/1.4 cm, at the level of the posterior mitral ring was detected by echocardiographic examination, as well as by cardiac magnetic resonance imaging (MRI). Histopathological analysis revealed fibrous connective tissue with myxoid areas, hyal…

How do organizational processes recover following a disaster? - A capital resiliency model for disaster preparedness -

2016

This paper explores how organizational processes are recreated following their destruction in unexpected disasters. It applies the notion of an organization as a capital conversion and capital creation system. It also focuses on systems resilience, the measure of a system's persistence and ability to absorb disturbances while reconstructing relationships between system entities. Based on the analysis of empirical evidence collected from the Great East Japan Earthquake disaster in 2011, we propose a resiliency model incorporating a broader interpretation of the notion of capital. The model consists of five dimensions of capital: economic, social, symbolic, human, and organizational. Once a g…

Impact of repeating somatic cues on the depth of experiencing for withdrawers and pursuers in emotionally focused couple therapy

2021

Emotionally Focused Couple Therapy, an experiential modality, views emotion central to therapeutic change. In this exploratory study, we examined therapists' repetition of somatically focused interventions (therapist verbalizing somatic cues, such as facial expressions) and their impact on clients' emotional experiencing in-session. We also assessed difference for withdrawing versus pursuing partners. The sample included 13 EFT therapists who worked with one couple each for a single session. From transcripts we coded therapists' repetition of somatically focused interventions and clients' depth of experiencing pre-and post-intervention. Multilevel modeling demonstrated that a higher number …