Crossing Eurasia: trans-regional Afghan trading networks in China and beyond

An expanding body of literature in the field of Central Asian studies has brought attention to the problems of considering the region's complex dynamics through the lens of its nation-states. Comparatively less attention has been paid to the role played by trans-regional circulations in connecting parts of Central Asia to the wider world. This paper situates ethnographic work on trans-regional networks of Afghan traders in China, Central Asia, Russia, Ukraine and the UK in relation to the literature on trans-regional connections and circulation societies. Ethnographically it demonstrates the multi-polar nature of these trans-regional networks, and the importance of trading nodes, especially the Chinese city of Yiwu, to their formation and ongoing vitality

Meta-analysis of non-tumour doses for radiation-induced cancer on the basis of dose-rate

Purpose: Quantitative analysis of cancer risk of ionising radiation as a function of dose-rate

A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)

Meeting abstrac

Simplified Transient Hot-Wire method for Effective Thermal Conductivity Measurement in Geo-Materials: Microstructure and Saturation effect

International audienc

Identification of weathering and hydrothermal alteration in acidic rocks : petrography and mineralogy of clay minerals

A major problem in ore prospecting on granitic terrains is to make a distinction between clay mineral assemblages due to weathering and those due to hydrothermal alteration. The most outstanding features of these two types of transformation are : 1. Potassic beidellite is typical of hydrothermal alteration. 2. Low iron content mineral assemblages in the presence of large amounts of kao-linite is typical of hydrothermal alteration. 3. Argillan veins and pore coatings are typical of weathered rocks. The control of microprobe analyses by X-ray diffraction on small quantities of matter is very useful for the identification of clay assemblages.Meunier Alain, Velde Bruce, Dudoignon P., Beaufort D. Identification of weathering and hydrothermal alteration in acidic rocks : petrography and mineralogy of clay minerals. In: Pétrologie des altérations et des sols. Vol. II : Pétrologie des séquences naturelles. Colloque international du CNRS, Paris 4-7 juillet 1983. Strasbourg : Institut de Géologie – Université Louis-Pasteur, 1983. pp. 93-99. (Sciences Géologiques. Mémoire, 72

Identification of weathering and hydrothermal alteration in acidic rocks : petrography and mineralogy of clay minerals

A major problem in ore prospecting on granitic terrains is to make a distinction between clay mineral assemblages due to weathering and those due to hydrothermal alteration. The most outstanding features of these two types of transformation are : 1. Potassic beidellite is typical of hydrothermal alteration. 2. Low iron content mineral assemblages in the presence of large amounts of kao-linite is typical of hydrothermal alteration. 3. Argillan veins and pore coatings are typical of weathered rocks. The control of microprobe analyses by X-ray diffraction on small quantities of matter is very useful for the identification of clay assemblages.Meunier Alain, Velde Bruce, Dudoignon P., Beaufort D. Identification of weathering and hydrothermal alteration in acidic rocks : petrography and mineralogy of clay minerals. In: Pétrologie des altérations et des sols. Vol. II : Pétrologie des séquences naturelles. Colloque international du CNRS, Paris 4-7 juillet 1983. Strasbourg : Institut de Géologie – Université Louis-Pasteur, 1983. pp. 93-99. (Sciences Géologiques. Mémoire, 72

Thermal conductivity measurement in clay dominant consolidated material by Transient Hot-Wire method.

The transient hot-wire (THW) technique is widely used for measurements of the thermal-conductivity of most fluids and some attempts have also been carried out for simultaneous measurements of the thermal-diffusivity with the same hot wire. This technique was also tried to determine thermal properties of soils by the mean of probes which can be considered as wire with some assumptions. The purpose of this paper is to validate the thermal conductivity measurement by the THW technique in geomaterials, composed of compacted sand + clay mineral that can be used for earth construction (Compacted Earth Brick). The thermal transfer behaviors are mainly governed by the texture and moisture of the geomaterials. Thus the investigations were performed (1) in media made of glass beads of different diameters in dry and saturated state in order to observe the role of grain sizes and saturation state on the wire temperature (Δt) measurements and (2) in the compacted clay-geomaterial at different moisture states. The Δt / ln(t) diagrams allow the calculation of two thermal conductivities. The first one, measured in the short time acquisition (< 1s), characterizes the microtexture of the material and its hydrated state. The second one, measured for longer time acquisitions, characterizes the mean thermal conductivity of the material

Use of Flt3 ligand to evaluate residual hematopoiesis after heterogeneous irradiation in mice

We evaluated the possibility of using plasma Flt3 ligand (FL) concentration as a biological indicator of bone marrow function after heterogeneous irradiation. Mice were irradiated with 4, 7.5 or 11 Gy with 25, 50, 75 or 100% of the bone marrow in the field of irradiation. This model of irradiation resulted in graded and controlled damage to the bone marrow. Mice exhibited a pancytopenia correlated with both the radiation dose and the percentage of bone marrow irradiated. The FL concentration in the blood increased with the severity of bone marrow aplasia. Nonlinear regression analysis showed that the FL concentration was strongly correlated with the total number of residual colony-forming cells 3 days after irradiation, allowing a precise estimate of residual hematopoiesis. Moreover, the FL concentration on day 3 postirradiation was correlated with the duration and severity of subsequent pancytopenia, suggesting that variations in FL concentrations might be used as a predictive indicator of bone marrow aplasia, especially by the use of linear regression equations describing these correlations. Our results provide a rationale for the use of FL concentration as a biological indicator of residual hematopoiesis after heterogeneous irradiation. © 2006 by Radiation Research Society