Sociétés, mobilités, déplacements : les territoires de l'attente.: Le cas des mondes américains (d'hier à aujourd'hui)

International audienceLes phénomènes de mobilité et de déplacement s'affirment comme des caractéristiques majeures de nos sociétés contemporaines. Pour autant, loin d'être fluides, homogènes ou linéaires, ces déplacements sont ponctués de temps, plus ou moins longs, d'attente. Qu'ils aient pour origine des raisons techniques, administratives ou politiques, de tels moments trouvent bien souvent une traduction spatiale : des territoires accueillent ces sociétés en attente. Examiner ces territoires de l'attente et la multiplicité de formes qu'ils revêtent, en établir leurs dimensions, comprendre leurs statuts juridiques, leurs articulations avec l'espace environnant, leurs temporalités spécifiques, ainsi que la variété des jeux économiques et sociaux qui s'y déploient - tel est le défi que se donne un groupe d'historiens, géographes, sociologues et littéraires, réunis au sein de l'ANR TERRIAT. Pour une telle enquête, les mondes américains, nés du déplacement (volontaire ou forcé) de populations d'origines diverses qui ont marqué de leur empreinte les territoires qu'elles se sont appropriées, s'offrent comme un terrain d'étude particulièrement adapté. Le présent article est la traduction française de l'article publié en portugais dans la revue "Confins

MORALES GUTIÉRREZ, OTILIA [Material gráfico]

Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte, 201

Faire avec l’espace, faire avec le temps. Peut-on habiter les territoires de l’attente ?

Dans les représentations collectives de l’attente, le sujet n’agit pas. On attribue à tort à l’attente une fonction passive qui ne correspond pas à la réalité des pratiques sociales développées dans ce contexte puisque les individus et les groupes en position d’attente ont de multiples activités qui sont en phase ou non avec leur situation immédiate. Tout dépend alors du type d’attente (formel, informel, institutionnel ou..

Programación de Matemáticas: CP, curso 1988/89

Actividades matemáticas de alumnos de 6-7 años extraídas de la informe anual de la Escuela J. Michelet

Programación de Matemáticas: CP, curso 1989/90

Actividades matemáticas de alumnos de 6- 7 años extraídas del informe anual de la Escuela J. Michelet

Sociedades, movilidades, desplazamientos : los territorios de la espera de ayer a hoy (el caso de los mundos americanos, siglos XIX-XXI)

Los fenómenos de movilidad y de desplazamiento se afirman como dos de las características mayores de las sociedades contemporáneas. Sin embargo, estos movimientos, lejos de ser fluidos, homogéneos o lineales, son acentuados por el tiempo, más o menos largo, de la espera. Originados por razones técnicas, administrativas o políticas, tales momentos tienen a menudo un correlato espacial puesto que conforman territorios que reciben dichas sociedades en espera. Ahora bien, se asigna erróneamente a..

Using Magnetic Resonance Imaging During Childbirth to Demonstrate Fetal Head Moldability and Brain Compression: Prospective Cohort Study

BackgroundChildbirth is a physiological process with significant medical risk, given that neurological impairment due to the birthing process can occur at any time. Improvements in risk assessment and anticipatory interventions are constantly needed; however, the birthing process is difficult to assess using simple imaging technology because the maternal bony pelvis and fetal skeleton interfere with visualizing the soft tissues. Magnetic resonance imaging (MRI) is a noninvasive technique with no ionizing radiation that can monitor the biomechanics of the birthing process. However, the effective use of this modality requires teamwork and the implementation of the appropriate safeguards to achieve appropriate safety levels. ObjectiveThis study describes a clinically effective and safe method to perform real-time MRI during the birthing process. We reported the experience of our team as part of the IMAGINAITRE study protocol (France), which aimed to better understand the biomechanics of childbirth. MethodsA total of 27 pregnant women were examined with 3D MRI sequences before going into labor using a 1-Tesla open-field MRI. Of these 27 patients, 7 (26%) subsequently had another set of 3D MRI sequences during the second stage of labor. Volumes of 2D images were transformed into finite element 3D reconstructions. Polygonal meshes for each part of the fetal body were used to study fetal head moldability and brain compression. ResultsAll 7 observed babies showed a sugarloaf skull deformity and brain compression at the middle strait. The fetus showing the greatest degree of molding and brain shape deformation weighed 4525 g and was born spontaneously but also presented with a low Apgar score. In this case, observable brain shape deformation demonstrated that brain compression had occurred, and it was not necessarily well tolerated by the fetus. Depending on fetal head moldability, these observations suggest that cephalopelvic disproportion can result in either obstructed labor or major fetal head molding with brain compression. ConclusionsThis study suggests the presence of skull moldability as a confounding factor explaining why MRI, even with the best precision to measure radiological landmarks, fails to accurately predict the modality of childbirth. This introduces the fetal head compliance criterion as a way to better understand cephalopelvic disproportion mechanisms in obstetrics. MRI might be the best imaging technology by which to explore all combined aspects of cephalopelvic disproportion and achieve a better understanding of the underlying mechanisms of fetal head molding and moldability

Effect of age on the performance of a diagnostic strategy based on clinical probability, spiral computed tomography and venous compression ultrasonography: the ESSEP study.

International audienceAs the prevalence of PE increases with age, the effect of age on the diagnostic work-up in front of a clinical suspicion of PE deserves exploration. In this retrospective analysis, we used the data from 1041 consecutive suspected PE patients. The patients were divided into three groups according to tertiles of age: under 54 years, 54 to 73 years and above 73 years. The prevalence of PE in patients with respectively low, intermediate and high pretest clinical probability was expressed within each age group. We studied the effect of age on the results observed in three main groups of patients, after performing CT scan and ultrasonography (CUS): (1) patients with inconclusive results; (2) patients with negative findings on both exams and non high pretest clinical probability; (3) patients with positive findings.The prevalence of PE increased significantly with age, in overall, as well as in patients with low or intermediate pretest clinical probability. An analysis according to the three main diagnostic groups showed that: (1) the distribution of inconclusive spiral CT or CUS examinations was not different between age groups; (2) no thromboembolic event occurred in untreated patients with low or intermediate clinical probability aged under 54 years of age, whereas 7 events were diagnosed in patients aged over 73 years (p<0.001); (3) a higher proportion of older patients had a positive result at both spiral CT and CUS examinations. The percentage of positive CT scans in the case of negative or inconclusive CUS results was not different between age groups; conversely, in the case of a negative or inconclusive CT scan, the percentage of positive CUS was higher in older patients. In conclusion, management of elderly suspected PE patients appears to be different from both the work-up and the outcome perspectives

Increased Serum Concentration of IgA2 Subclass and IgA2/IgA1 Ratio: Specific Markers of Chronic Alcoholic Abuse?

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