J Arnaud
Biographic Data
| ID | 3664056 |
|---|---|
| NAME | J Arnaud |
| GIVEN NAMES | J |
| FAMILY NAME | Arnaud |
| SIGNATURE | ARNAUD J |
| AFFILIATIONS | Centre National de la Recherche Scientifique |
| VERIFIED | No |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 2 |
| WORKS AS AUTHOR | 7 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1979 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 1 |
Le composite comme outil critique
Le compositing permet aux artistes de jouer avec des effets documentaires et fictionnels selon des combinaisons infiniment variables dans leurs œuvres. Ils interrogent ainsi le spectateur sur l’instabilité, la transitivité et le pouvoir des images dans le monde actuel, en commentant la confusion médiatique entretenue par les appareils socioculturels dominants. Il s’agit ici d’analyser les évolutions actuelles du composite comme outil critique dan…
Study of the variability of erythrocyte enzymes in captive and wild populations of the black lemur (Eulemur macaco macaco). An indispensable preliminary in captive breeding programmes
Blood markers and genetic evolution in Cercopithecinae
Haematology and erythrocyte metabolism in man at high altitude
In the course of haematological and biological investigations among Aymara and Quechua populations in Bolivia, an anthropological study of the erythrocytary respiratory function was carried out on the two groups at two altitudes: 3,600 m and 450 m. A difference in the intensity of the biological variations of the two populations is observed at high altitude. In the Quechuas, as in any lowland native, the adaptative phenomena are totally and quick…
Human red cell glycolysis in high altitude chronic hypoxia
We have found that glycolysis in human red blood cells under the hypoxic conditions found at high altitudes is connected with changes in enzyme activities and levels of various metabolic intermediates. The sensitivity of the four kinases to hypoxia results in 1) glycolytic hyperactivity leading to a higher intracellular energy state, and 2) accumulation of 2–3 DPG, whose role in the adaptation of red blood cell respiration to high altitude has be…
High-altitude haematology
Haematological studies have been carried out at various altitudes between 450 m and 4800 m, on two separate human groups (Quechuas and Aymaras) living in South America. Changes in the haematological parameters do not develop linearly in relation to the attitude. Th impact of chronic hypoxia on erythropoiesis is greater above 3000 m. The haemogram varies quantitatively and not qualitatively (mean corpuscular volume and mean haemoglobin concentrati…
Methaemoglobin and erythrocyte reducing systems in high-altitude natives
The stress of chronic hypobaric hypoxia present at high altitudes induces a series of adaptive changes in the intermediate metabolism in erythrocytes of high-altitude natives. Aymaras of the high Andean Plateau are shown to have within erythrocytes: (a) increased activity of NADH2 (GAPDH) generating stages, (b) decreased activity of NADH2 (LDH) consuming steps, (c) significantly increased methaemoglobin content, and (d) a large increase in the le…
Haematology and erythrocyte metabolism in man at high altitude
In the course of haematological and biological investigations among Aymara and Quechua populations in Bolivia, an anthropological study of the erythrocytary respiratory function was carried out on the two groups at two altitudes: 3,600 m and 450 m. A difference in the intensity of the biological variations of the two populations is observed at high altitude. In the Quechuas, as in any lowland native, the adaptative phenomena are totally and quick…
Human red cell glycolysis in high altitude chronic hypoxia
We have found that glycolysis in human red blood cells under the hypoxic conditions found at high altitudes is connected with changes in enzyme activities and levels of various metabolic intermediates. The sensitivity of the four kinases to hypoxia results in 1) glycolytic hyperactivity leading to a higher intracellular energy state, and 2) accumulation of 2–3 DPG, whose role in the adaptation of red blood cell respiration to high altitude has be…
Methaemoglobin and erythrocyte reducing systems in high-altitude natives
The stress of chronic hypobaric hypoxia present at high altitudes induces a series of adaptive changes in the intermediate metabolism in erythrocytes of high-altitude natives. Aymaras of the high Andean Plateau are shown to have within erythrocytes: (a) increased activity of NADH2 (GAPDH) generating stages, (b) decreased activity of NADH2 (LDH) consuming steps, (c) significantly increased methaemoglobin content, and (d) a large increase in the le…
High-altitude haematology
Haematological studies have been carried out at various altitudes between 450 m and 4800 m, on two separate human groups (Quechuas and Aymaras) living in South America. Changes in the haematological parameters do not develop linearly in relation to the attitude. Th impact of chronic hypoxia on erythropoiesis is greater above 3000 m. The haemogram varies quantitatively and not qualitatively (mean corpuscular volume and mean haemoglobin concentrati…
Human red cell glycolysis in high altitude chronic hypoxia
We have found that glycolysis in human red blood cells under the hypoxic conditions found at high altitudes is connected with changes in enzyme activities and levels of various metabolic intermediates. The sensitivity of the four kinases to hypoxia results in 1) glycolytic hyperactivity leading to a higher intracellular energy state, and 2) accumulation of 2–3 DPG, whose role in the adaptation of red blood cell respiration to high altitude has be…
Haematology and erythrocyte metabolism in man at high altitude
In the course of haematological and biological investigations among Aymara and Quechua populations in Bolivia, an anthropological study of the erythrocytary respiratory function was carried out on the two groups at two altitudes: 3,600 m and 450 m. A difference in the intensity of the biological variations of the two populations is observed at high altitude. In the Quechuas, as in any lowland native, the adaptative phenomena are totally and quick…
Blood markers and genetic evolution in Cercopithecinae
Study of the variability of erythrocyte enzymes in captive and wild populations of the black lemur (Eulemur macaco macaco). An indispensable preliminary in captive breeding programmes
Le composite comme outil critique
Le compositing permet aux artistes de jouer avec des effets documentaires et fictionnels selon des combinaisons infiniment variables dans leurs œuvres. Ils interrogent ainsi le spectateur sur l’instabilité, la transitivité et le pouvoir des images dans le monde actuel, en commentant la confusion médiatique entretenue par les appareils socioculturels dominants. Il s’agit ici d’analyser les évolutions actuelles du composite comme outil critique dan…
Biology (5 works) · Effects of high altitude on humans (4 works) · Anatomy (3 works) · Erythrocyte Function and Pathophysiology (3 works) · Internal Medicine (3 works) · Medicine (3 works) · Zoology (3 works) · Altitude (triangle (2 works) · Amphibian and Reptile Biology (2 works) · Anatomy (2 works)