Search results for "camp"
showing 10 items of 1995 documents
Differential associations of age with volume and microstructure of hippocampal subfields in healthy older adults
2015
Hippocampal atrophy in advanced healthy aging has frequently been reported. However, the vulnerability of different hippocampal subfields to age-related atrophy is still a source of debate. Moreover, the association of age with the microstructural integrity of subfields is largely unknown. In this study, we investigated the associations between age and volume as well as microstructural integrity of hippocampal subfields using a three-dimensional (3D) surface mapping approach. Forty-three healthy older adults spanning the age range from 60 to 85 years underwent T1-weighted and diffusion-tensor imaging. Analyses demonstrated an association of age with hippocampal volume predominantly in the m…
Estimation of sea surface temperature from SEVIRI data: algorithm testing and comparison with AVHRR products
2006
Three surface temperature (ST) algorithms for Spinning Enhanced Visible and InfraRed Imager (SEVIRI) data are developed and tested. A general split window algorithm for ST estimation, a sea surface temperature (SST) algorithm and a nonlinear algorithm (NLSST) developed for SEVIRI data. The test was carried out by comparing SEVIRI data with two types of data: (a) in situ and (b) obtained with the NLSST algorithm applied to Advanced Very High Resolution Radiometer (AVHRR). The field campaign was carried out over sea using a thermal radiometer. The algorithms were applied to SEVIRI images in coincidence with the field campaign and the results show an rms error lower than 0.7 K. The comparison …
ANALYSIS OF THE SEXUAL VARIABILITY IN THE SHELL OF THE SPANISH UPPER CRETACEOUS TURTLE DORTOKA VASCONICA (PAN-PLEURODIRA, DORTOKIDAE)
2021
The present study characterizes the morphological variability related to the sexual dimorphism in the shells of the Spanish Upper Cretaceous turtle Dortoka vasconica . This study is based on the material from its type locality: Lano, Burgos. Two morphotypes were identified there based on the posterior plastral area as well as two for the anterior plastral lobe. However, a correlation with the previously indicated morphotypes could not be established due to the disarticulation of the specimens and the limited information available on the sexual dimorphism of Pleurodira. The morphological variability previously identified for Dortoka vasconica is analysed here through a quantitative approa…
Use of Reinforcement Learning in Two Real Applications
2008
In this paper, we present two sucessful applications of Reinforcement Learning (RL) in real life. First, the optimization of anemia management in patients undergoing Chronic Renal Failure is presented. The aim is to individualize the treatment (Erythropoietin dosages) in order to stabilize patients within a targeted range of Hemoglobin (Hb). Results show that the use of RL increases the ratio of patients within the desired range of Hb. Thus, patients' quality of life is increased, and additionally, Health Care System reduces its expenses in anemia management. Second, RL is applied to modify a marketing campaign in order to maximize long-term profits. RL obtains an individualized policy depe…
Macrophage migration inhibitory factor is critically involved in basal and fluoxetine-stimulated adult hippocampal cell proliferation and in anxiety,…
2011
Intensive research is devoted to unravel the neurobiological mechanisms mediating adult hippocampal neurogenesis, its regulation by antidepressants, and its behavioral consequences. Macrophage migration inhibitory factor (MIF) is a pro-inflammatory cytokine that is expressed in the CNS, where its function is unknown. Here, we show, for the first time, the relevance of MIF expression for adult hippocampal neurogenesis. We identify MIF expression in neurogenic cells (in stem cells, cells undergoing proliferation, and in newly proliferated cells undergoing maturation) in the subgranular zone of the rodent dentate gyrus. A causal function for MIF in cell proliferation was shown using genetic (M…
Misfolded vasopressin V2 receptors caused by extracellular point mutations entail congenital nephrogenic diabetes insipidus.
2000
Vasopressin V2 receptor mutants from three different patients with congenital nephrogenic diabetes insipidus phenotypes were investigated after expression in COS cells. The amino acid exchanges within the human V2 receptor are located in the second extracellular loop (T204N, Y205C and V206D). Confocal microscopy showed that all receptor mutants were strongly expressed but mainly located within the cell. Residual binding capacity for the antidiuretic hormone arginine vasopressin (AVP) could only be detected for the T204N mutant and was 10-fold lower than for the wild-type receptor. Stimulation of transfected cells with 1 microM AVP showed that the T204N mutant was able to activate the adenyl…
Role of interleukin-6 and soluble IL-6 receptor in region-specific induction of astrocytic differentiation and neurotrophin expression.
1999
Increasing evidence supports an essential role for interleukin-6 (IL-6) in the development, differentiation, as well as de- and re-generation of neurons in the central nervous system (CNS). Both IL-6 and its specific receptor (IL-6R) are expressed on neurons and glial cells including astrocytes. In this study, we have analyzed the responses of primary rat astrocytes of various brain regions to IL-6 with respect to morphological changes and neurotrophin expression. Since IL-6 alone failed to initiate effects on astrocytes, we have examined whether the soluble IL-6R (sIL-6R) can modulate the responsiveness of to IL-6 in these cells. For this purpose, we used a highly active fusion protein of …
Disequilibrium melt distribution during static recrystallisation
2004
Melt migration and segregation, and the rheology of partially molten rocks in the upper mantle and lower crust, strongly depend on the grain-scale distribution of the melt. Current theory for monomineralic aggregates predicts a perfectly regular melt framework, but high-temperature experiments with rock-forming minerals + melt show considerable deviations from this predicted geometry. Disequilibrium features, such as fully wetted grain boundaries and large melt patches, have been described; these were mainly attributed to surface-energy anisotropy of the minerals. We present static analogue experiments with norcamphor + ethanol that allow continuous in situ observation of the evolving liqui…
Aproximaciones a la literatura concentracionaria de Max Aub: "Vernet, 1940"; "El limpiabotas del Padre Eterno" y "El cementerio de Djelfa"
2014
El propósito de este trabajo es trazar las particularidades y rasgos comunes entre tres obras cortas pertenecientes al ciclo de obras "El laberinto mágico". Se realiza una aproximación de los aspectos condicionante en el caso de este tipo escritura como la memoria, el olvido y la génesis de la enunciación como una posible catarsis. Primordialmente el análisis se basa en tres obras representativas: "Vernet, 1940", "El limpiabotas del Padre Eterno" y "El cementerio de Djelfa" de Max Aub. Principalmente, se realiza una reflexión en torno a los temas esenciales de la obra como el carácter de testimonio y la construcción de la ficción, así como los efectos de la estancia concentracionaria como l…
Health and Living Conditions of Refugees and Asylum-seekers: A Survey of Informal Settlements in Italy
2018
Newspapers and humanitarian organisations have long shown that many asylumseekers and other beneficiaries of international protection are forced to live for months or even years in precarious settlements that have sprung up spontaneously throughout Italy. However, there are no official statistics on how many asylum-seekers and refugees in Italy live this way. Our survey, carried out in 2015, is the first national survey of foreign nationals living in these makeshift camps. It aims to build a complete list of informal settlements in Italy and provide an estimate of the population size, characteristics, and living conditions of these settlements, with a focus on health conditions. The conditi…