12 research outputs found
Les ateliers du hameau Les Noires Terres Ă Messein (Meurthe-et-Moselle, Lorraine, France)Â :
Lâoccupation altomĂ©diĂ©vale (VIe-VIIIe s.) au lieu-dit Les Noires Terres sur la commune de Messein, au sud de Nancy (Meurthe-et-Moselle, France, fouille 2003-2004), associe des unitĂ©s composĂ©es dâun bĂątiment dâhabitation et de structures de type agricole (greniers, silos, enclos, cabanes excavĂ©esâŠ) Ă des ateliers de production et de travail du fer (prĂ©paration du minerai, fabrication du charbon de bois, fourneaux de rĂ©duction, forgeage du fer). La prĂ©sence des dĂ©chets relevant dâune chaĂźne opĂ©ratoire complĂšte (de la prĂ©paration du minerai Ă lâĂ©laboration de produits finis), documentĂ©e par lâĂ©tude palĂ©omĂ©tallurgique, ainsi que le volume de production estimĂ© au vu de leur quantitĂ© (plusieurs dizaines de tonnes de fer), suggĂšrent quâil sâagit de lâactivitĂ© principale des occupants et non pas dâune activitĂ© dâappoint aux pratiques agricoles. La nature de lâoccupation est donc discutĂ©e : les vestiges dĂ©couverts correspondraient aux unitĂ©s dâhabitation dâartisans spĂ©cialisĂ©s, avec leurs ateliers, comportant lâensemble des installations et Ă©quipements nĂ©cessaires Ă leur subsistance et Ă leur vie quotidienne. On peut ainsi Ă©mettre lâhypothĂšse quâil sâagit dâune des formes dâorganisation de la production du fer dans le monde franc au cours du premier Moyen Ăge, et quâelle correspond peut-ĂȘtre Ă ce que nous laissent entrevoir les polyptiques de la pĂ©riode carolingienne.The Altomedieval occupation (6th-8th c.) at Les Noires Terres in Messein, to the south of Nancy (Meurthe-et-Moselle, France, excavation 2003-2004), associates elements composed of a dwelling and agricultural structures (granaries, silos, enclosures, excavated huts, etc.) with iron production and transformation workshops (iron ore preparation, wood charcoal production, reduction furnaces, iron forging). The presence of waste products corresponding to a complete chaĂźne opĂ©ratoire (production sequence) (from iron ore preparation to finished products), documented by the paleo-metallurgical study and the production volume estimated from their quantity (several dozen tons of iron), suggest that this was the main activity of the occupants, rather than an activity secondary to agricultural activities. The nature of the occupation is thus discussed : the remains discovered could correspond to the dwellings of the specialized artisans, with their workshops, including all the installations and equipment necessary for their subsistence and daily life. We can thus propose the hypothesis that this was one of the forms of iron production organization employed by the Franks during the Early Middle Ages, and that if might correspond to that which is suggested by the polyptyques of the Carolingian period.Die frĂŒhmittelalterliche Besiedlung (6.-8. Jh.) von Les Noires Terres auf dem Gebiet der Gemeinde Messein, sĂŒdlich von Nancy (Departement Meurthe-et-Moselle, Frankreich, Ausgrabung 2003-2004), besteht aus Siedlungseinheiten, die sich jeweils aus einem Wohnbau mit landwirtschaftlichen Einrichtungen (Speicherbauten, Silos, Einfriedungen, GrubenhĂ€userâŠ) und WerkstĂ€tten fĂŒr die Eisengewinnung und -verarbeitung (Erzaufbereitung, Holzkohlengewinnung, Rennöfen, Eisenschmieden) zusammensetzen. Die AbfĂ€lle, die von einem kompletten, durch die palĂ€ometallurgische Studie dokumentierten VerhĂŒttungsprozess (von der Erzaufbereitung bis hin zur Formgebung der Endprodukte) zeugen, sowie das anhand der AbfĂ€lle geschĂ€tzte Produktionsvolumen (mehrere Dutzend Tonnen Eisen) legen nahe, dass es sich hier um die HauptbeschĂ€ftigung der Bewohner handelte und nicht um eine NebentĂ€tigkeit. Demzufolge steht die Art der Besiedlung zur Diskussion: Die Funde und Befunde wĂŒrden einer auf die Eisengewinnung und -verarbeitung spezialisierte Handwerkersiedlung entsprechen mit allen fĂŒr die Arbeit und den Alltag der Bewohner notwendigen Anlagen und Einrichtungen, WohnhĂ€usern und WerkstĂ€tten. So können wir die Hypothese vorlegen, dass es sich um eine der Organisationsformen der frĂŒhmittelalterlichen frĂ€nkischen Eisenmetallurgie handelt, welche die Urbare der karolingischen Periode erahnen lassen
Un Ă©tablissement rural du second Ăąge du Fer Ă Cergy « ZAC des Linandes » (Val-dâOise) : rĂ©sultats prĂ©liminaires
National audienc
Détecteur de puissance intégré sur silicium stabilisé en température basé sur un coupleur compact pour applications spatiales en bande Ka
National audienceCe papier dĂ©crit la conception dâun dĂ©tecteur de puissance linĂ©aire compact Ă trĂšs faible impact sur la chaĂźne RF (moins de 0,1 dB de pertes dâinsertion), forte dynamique linĂ©aire (20 dB) et faible sensibilitĂ© aux variations de tempĂ©rature (moins de 0,5 dB entre -10 °C et 65 °C) en bande Ka pour des applications de communication par satellite dans la bande 17,3-20,2 GHz. Le dĂ©tecteur proposĂ© est entiĂšrement intĂ©grĂ© sur silicium en technologie BiCMOS 130 nm de STMicroelectronics et consomme moins de 4 mW. Il est basĂ© sur un nouveau coupleur capacitif trĂšs compact
Les ateliers du hameau Les Noires Terres Ă Messein (Meurthe-et-Moselle, Lorraine, France): une illustration de lâune des formes dâorganisation de la production du fer au cours du premier Moyen Ăge ?
International audienceDie frĂŒhmittelalterliche Besiedlung (6.-8. Jh.) von Les Noires Terres auf dem Gebiet der Gemeinde Messein, sĂŒdlich von Nancy (Departement Meurthe-et-Moselle, Frankreich, Ausgrabung 2003-2004), besteht aus Siedlungseinheiten, die sich jeweils aus einem Wohnbau mit landwirtschaftlichen Einrichtungen (Speicherbauten, Silos, Einfriedungen, GrubenhĂ€userâŠ) und WerkstĂ€tten fĂŒr die Eisengewinnung und -verarbeitung (Erzaufbereitung, Holzkohlengewinnung, Rennöfen, Eisenschmieden) zusammensetzen. Die AbfĂ€lle, die von einem kompletten, durch die palĂ€ometallurgische Studie dokumentierten VerhĂŒttungsprozess (von der Erzaufbereitung bis hin zur Formgebung der Endprodukte) zeugen, sowie das anhand der AbfĂ€lle geschĂ€tzte Produktionsvolumen (mehrere Dutzend Tonnen Eisen) legen nahe, dass es sich hier um die HauptbeschĂ€ftigung der Bewohner handelte und nicht um eine NebentĂ€tigkeit. Demzufolge steht die Art der Besiedlung zur Diskussion: Die Funde und Befunde wĂŒrden einer auf die Eisengewinnung und -verarbeitung spezialisierte Handwerkersiedlung entsprechen mit allen fĂŒr die Arbeit und den Alltag der Bewohner notwendigen Anlagen und Einrichtungen, WohnhĂ€usern und WerkstĂ€tten. So können wir die Hypothese vorlegen, dass es sich um eine der Organisationsformen der frĂŒhmittelalterlichen frĂ€nkischen Eisenmetallurgie handelt, welche die Urbare der karolingischen Periode erahnen lassen.The Altomedieval occupation (6th-8th c.) at Les Noires Terres in Messein, to the south of Nancy (Meurthe-et-Moselle, France, excavation 2003-2004), associates elements composed of a dwelling and agricultural structures (granaries, silos, enclosures, excavated huts, etc.) with iron production and transformation workshops (iron ore preparation, wood charcoal production, reduction furnaces, iron forging). The presence of waste products corresponding to a complete chaĂźne opĂ©ratoire (production sequence) (from iron ore preparation to ïŹnished products), documented by the paleo-metallurgical study and the production volume estimated from their quantity (several dozen tons of iron), suggest that this was the main activity of the occupants, rather than an activity secondary to agricultural activities. The nature of the occupation is thus discussed : the remains discovered could correspond to the dwellings of the specialized artisans, with their workshops, including all the installations and equipment necessary for their subsistence and daily life. We can thus propose the hypothesis that this was one of the forms of iron production organization employed by the Franks during the Early Middle Ages, and that if might correspond to that which is suggested by the polyptyques of the Carolingian period.Lâoccupation altomĂ©diĂ©vale (vie-viiie s.) au lieu-dit Les Noires Terres sur la commune de Messein, au sud de Nancy (Meurthe-et-Moselle, France, fouille 2003-2004), associe des unitĂ©s composĂ©es dâun bĂątiment dâhabitation et de structures de type agricole (greniers, silos, enclos, cabanes excavĂ©esâŠ) Ă des ateliers de production et de travail du fer (prĂ©paration du minerai, fabrication du charbon de bois, fourneaux de rĂ©duction, forgeage du fer). La prĂ©sence des dĂ©chets relevant dâune chaĂźne opĂ©ratoire complĂšte (de la prĂ©paration du minerai Ă lâĂ©laboration de produits ïŹnis), documentĂ©e par lâĂ©tude palĂ©omĂ©tallurgique, ainsi que le volume de production estimĂ© au vu de leur quantitĂ© (plusieurs dizaines de tonnes de fer), suggĂšrent quâil sâagit de lâactivitĂ© principale des occupants et non pas dâune activitĂ© dâappoint aux pratiques agricoles. La nature de lâoccupation est donc discutĂ©e : les vestiges dĂ©couverts correspondraient aux unitĂ©s dâhabitation dâartisans spĂ©cialisĂ©s, avec leurs ateliers, comportant lâensemble des installations et Ă©quipements nĂ©cessaires Ă leur subsistance et Ă leur vie quotidienne. On peut ainsi Ă©mettre lâhypothĂšse quâil sâagit dâune des formes dâorganisation de la production du fer dans le monde franc au cours du premier Moyen Ăge, et quâelle correspond peut-ĂȘtre Ă ce que nous laissent entrevoir les polyptiques de la pĂ©riode carolingienne
International recommendations to manage post-stroke Equinovarus Foot deformity validated by a panel of experts using DELPHI.
This study intended to establish international recommendations for the management of spastic equinovarus foot deformity. Delphi method SETTING: International study PARTICIPANTS: 24 international experts in neuro-orthopedic deformities, from different specialties (Physical and Rehabilitation Medicine physicians, neurologists, geriatricians, orthopaedic surgeons, neurosurgeons, and plastic surgeons) INTERVENTIONS: Experts answered three rounds of questions related to important aspects of diagnosis, assessment and treatment of spastic equinovarus foot deformity. A consensus was established when at least 80% of experts agreed on a statement RESULTS: : A total of 52 items reached consensus. Experts recommend assessing impact of the deformity on functional activities before treatment. Before treatment, it is crucial to differentiate spastic muscle overactivity from soft tissue contractures, identify which muscles are involved in the deformity and evaluate the activity of antagonist muscles. Motor nerve blocks, two-dimensional video analysis and radiological exams are often required to complement a clinical exam. The treatment of equinovarus foot depends on the correctability of the deformity, but also the patient's ability to stand or walk. The preoperative assessment should include an interdisciplinary consultation that must finalize a formal agreement between doctors and the patient, which will define personalized attainable goals before surgery. The establishment of guidelines on managing equinovarus foot will help physicians and surgeons, specialists, and non-specialists to diagnoses and assess the deformity and direct patients to a network of experts, in order to optimize patient functional recovery and improve their autonomy
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Impact of the mutational load on the virological response to a first-line rilpivirine-based regimen.
ObjectivesTo determine how the load of rilpivirine-resistant variants (mutational load) influences the virological response (VR) of HIV-1-infected patients to a rilpivirine-based first-line regimen.Patients and methodsFour hundred and eighty-nine patients infected with HIV-1 whose reverse transcriptase gene had been successfully resistance genotyped using next-generation sequencing were given a first-line regimen containing rilpivirine. Variables associated with the VR at 12âmonths were identified using a logistic model. The results were used to build a multivariate model for each mutational load threshold and the R2 variations were analysed to identify the mutational load threshold that best predicted the VR.ResultsThe mutational load at baseline was the only variable linked to the VR at 12âmonths (Pââ<â0.01). The VR at 12âmonths decreased from 96.9% to 83.4% when the mutational load was >1700âcopies/mL and to 50% when the mutational load was >â9000âcopies/mL. The threshold of 9000âcopies/mL was associated with the VR at 12âmonths with an OR of 36.7 (95% CI 4.7-285.1). The threshold of 1700âcopies/mL was associated with the VR at 12âmonths with an OR of 7.2 (95% CI 1.4-36.8).ConclusionsThere is quantifiable evidence that determining a mutational load threshold can be used to identify those patients on a first-line regimen containing rilpivirine who are at risk of virological failure. The clinical management of HIV-infected patients can be improved by evaluating the frequency of mutant variants at a threshold of <â20% together with the plasma HIV-1 viral load at the time of resistance genotyping
Characteristics and prognosis of bloodstream infection in patients with COVID-19 admitted in the ICU: an ancillary study of the COVID-ICU study
International audienceBackground Patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-COV 2) and requiring intensive care unit (ICU) have a high incidence of hospital-acquired infections; however, data regarding hospital acquired bloodstream infections (BSI) are scarce. We aimed to investigate risk factors and outcome of BSI in critically ill coronavirus infectious disease-19 (COVID-19) patients. Patients and methods We performed an ancillary analysis of a multicenter prospective international cohort study (COVID-ICU study) that included 4010 COVID-19 ICU patients. For the present analysis, only those with data regarding primary outcome (death within 90Â days from admission) or BSI status were included. Risk factors for BSI were analyzed using Fine and Gray competing risk model. Then, for outcome comparison, 537 BSI-patients were matched with 537 controls using propensity score matching. Results Among 4010 included patients, 780 (19.5%) acquired a total of 1066 BSI (10.3 BSI per 1000 patients days at risk) of whom 92% were acquired in the ICU. Higher SAPS II, male gender, longer time from hospital to ICU admission and antiviral drug before admission were independently associated with an increased risk of BSI, and interestingly, this risk decreased over time. BSI was independently associated with a shorter time to death in the overall population (adjusted hazard ratio (aHR) 1.28, 95% CI 1.05â1.56) and, in the propensity score matched data set, patients with BSI had a higher mortality rate (39% vs 33% p =â0.036). BSI accounted for 3.6% of the death of the overall population. Conclusion COVID-19 ICU patients have a high risk of BSI, especially early after ICU admission, risk that increases with severity but not with corticosteroids use. BSI is associated with an increased mortality rate
Correction to: Characteristics and prognosis of bloodstream infection in patients with COVIDâ19 admitted in the ICU: an ancillary study of the COVIDâICU study
International audienc
Inborn errors of OASâRNase L in SARS-CoV-2ârelated multisystem inflammatory syndrome in children
International audienceMultisystem inflammatory syndrome in children (MIS-C) is a rare and severe condition that follows benign COVID-19. We report autosomal recessive deficiencies of OAS1 , OAS2 , or RNASEL in five unrelated children with MIS-C. The cytosolic double-stranded RNA (dsRNA)âsensing OAS1 and OAS2 generate 2âČ-5âČ-linked oligoadenylates (2-5A) that activate the single-stranded RNAâdegrading ribonuclease L (RNase L). Monocytic cell lines and primary myeloid cells with OAS1, OAS2, or RNase L deficiencies produce excessive amounts of inflammatory cytokines upon dsRNA or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) stimulation. Exogenous 2-5A suppresses cytokine production in OAS1-deficient but not RNase Lâdeficient cells. Cytokine production in RNase Lâdeficient cells is impaired by MDA5 or RIG-I deficiency and abolished by mitochondrial antiviral-signaling protein (MAVS) deficiency. Recessive OASâRNase L deficiencies in these patients unleash the production of SARS-CoV-2âtriggered, MAVS-mediated inflammatory cytokines by mononuclear phagocytes, thereby underlying MIS-C