Les hommes et le milieu naturel Barthélémy, Nicole; Bonniel, Jacques; Bromberger, Christian ...
Terrain (Paris, 1983),
1986
Journal Article
Recenzirano
Odprti dostop
Les représentations et les usages des plantes, animaux et sites dits "sauvages" sont constitutifs de notre culture, au même titre que les savoirs liés à un environnement "domestiqué" (vignes, jardins ...potagers).
The relationships of diet, development, and maturation indices to the status of blood iron and folate indicators were studied among 233 adolescent girls aged 10-16 years. Statistically significant ...associations between total iron intake and hemoglobin, plasma iron, serum ferritin and transferrin saturation were observed after controlling the confounding effect of other parameters. Iron intake provided by meat was positively related to hemoglobin and serum ferritin levels. Moreover, post-menarcheal girls and girls in their growth spurt peak had a lower serum ferritin level than the others. Plasma and erythrocyte folate levels increased with increasing folate intake from vegetables and fruits. Plasma folate level decreased with decreasing folate from meat. Plasma and erythrocyte folate levels decreased with chronologic age independantly of dietary intake. Among this nutritionally vulnerable group, our results specify the effect of factors known to influence iron and folate status.
At the (001) interface between the two band-insulators LaAlO3 and SrTiO3, a high-mobility electron gas may appear, which has been the object of numerous works over the last four years. Its origin is ...a subject of debate between the interface polarity and unintended doping. Here we use electron energy loss 'spectrum images', recorded in cross-section in a scanning transmission electron microscope, to analyse the Ti3+ ratio, characteristic of extra electrons. We find an interface concentration of Ti3+ that depends on growth conditions.
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