L’habitat du Néolithique ancien de Colombelles « Le Lazzaro » (Calvados)

Ce Mémoire de la Société préhistorique française constitue la monographie du site d’habitat de Colombelles, exploré entre 2001 et 2005, en cinq campagnes de fouille programmée. L’ouvrage se découpe en six parties selon un schéma classique de rapport de fouille et de publication de site. Après une présentation du site et de son contexte, l’étude des différents types de structures archéologiques est abordée, suivie par les résultats des analyses des mobiliers archéologiques. La quatrième partie..

Philippe Lefranc, La céramique du Rubané en Alsace : contribution à l’étude des groupes régionaux du Néolithique ancien dans la plaine du Rhin supérieur.

L’exercice du compte rendu d’ouvrage est souvent difficile, lorsqu’on est juge et partie, car il s’agit de commenter le fruit du travail d’une thèse de doctorat élaborée et soutenue à Strasbourg, en même temps que la mienne, toute deux abordant certains aspects régionaux du Rubané. Reprenant les termes de la 4e de couverture, « le présent ouvrage a vocation à devenir la référence pour toutes les questions de chronologie du Rubané en Alsace ». Telle est d’emblée l’impression que nous fournit l..

Philippe Lefranc, La céramique du Rubané en Alsace : contribution à l’étude des groupes régionaux du Néolithique ancien dans la plaine du Rhin supérieur.

L’exercice du compte rendu d’ouvrage est souvent difficile, lorsqu’on est juge et partie, car il s’agit de commenter le fruit du travail d’une thèse de doctorat élaborée et soutenue à Strasbourg, en même temps que la mienne, toute deux abordant certains aspects régionaux du Rubané. Reprenant les termes de la 4e de couverture, « le présent ouvrage a vocation à devenir la référence pour toutes les questions de chronologie du Rubané en Alsace ». Telle est d’emblée l’impression que nous fournit l..

Pussigny – Le Vigneau

Le site, situé au lieu-dit le Vigneau (Pussigny, Indre-et-Loire), se développe dans la partie supérieure du plateau qui domine la vallée de la Vienne, à l’est, et le ruisseau de la Veude, au nord. Dans ce secteur, le substrat est constitué de craie micacée, ou « tuffeau blanc », du turonien moyen (C3b). Les occupations s’étagent le long d’un versant exposé plein ouest, à une altitude moyenne de 86-90 m. Une nécropole occupe la partie haute de la pente (le Vigneau 2). Elle a connu plusieurs ph..

Black adzes in the Early Neolithic of Belgium: Contribution of the Raman microspectrometry and petrography in characterization and sourcing

Early Neolithic (Linear Pottery Culture) adzes originate from settlements and workshops accompany the neolithization of Belgium. They are made from a wide range of extraregional lithic raw materials such as metamorphic green rocks (amphibolite) and black volcanic rocks (“basalt’) beside more local or regional raw material as flints, light-coloured (sedimentary and lightly metamorphic) quartzites, black lydites (Cambrian nodular phtanite of Céroux-Mousty and Lower Namurian banded phtanites) and dark grey Lower Namurian silicified sandstones previously called “Micaceous sandstones of Horion-Hozémont’. The discovery of the workshop of Noirfontaine near the city of Liège in the 1970s and 1980s provides exceptional assemblage available for updating analytical studies. This research focuses on the multi-scale characterization, the discrimination and sourcing both Cambrian and Namurian black sedimentary rocks rich in secondary silica composing Early Neolithic adzes found in Belgium. Their black colour results from finely dispersed organic matter, but the absence of palynomorphs does not allow a biostratigraphic ascription. Additional petrographical analyses (Optical Petrography, Scanning Electron Microscope), X-ray diffraction, chemical analyses (Energy Dispersive Spectroscopy) and measuring the degree of graphitization of the organic matter through Raman microspectrometry have been decisive in identifying the geological and geographical provenances by comparing the acquired results with geological reference samples collected in the field or through reference collections. Cambrian lydites are coming from a very restricted area and were preferred to other more local rock sources

Original Full Length Article Autologous bone marrow cell implantation in the treatment of non-traumatic osteonecrosis of the femoral head: Five year follow-up of a prospective controlled study

Objective: To determine the efficacy of bone marrow cell implantation into the necrotic lesion of the femoral head on clinical symptoms and the progression of osteonecrosis of the femoral head in comparison with core decompression. Methods: We studied nineteen patients and twenty four hips with early stage osteonecrosis of the femoral head. The hips were allocated to either core decompression only or core decompression and implantation of bone marrow cells. Both patients and assessors were blind with respect to treatment group assignment. The primary outcomes were clinical symptoms and disease progression. Results: Bone marrow implantation afforded a significant reduction in pain and in joint symptoms and reduced the incidence of fractural stages. At 60 months, eight of the eleven hips in the control group had deteriorated to the fractural stage whereas only three of the thirteen hips in the bone marrow graft group had progressed to that stage. Survival analysis showed a significant difference in the time to failure between the two groups at 60 months. Patients had only minor side-effects after the treatments. Conclusions: This long term follow-up study confirmed that implantation of autologous bone marrow cells in the necrotic lesion might be an effective treatment for patients with early stages of osteonecrosis of the femoral head

Gestión de la industria hotelera en Bogotá con enfoque en responsabilidad social empresarial

La presente investigación tuvo como objeto, describir el estado de la gestión de la industria hotelera en Bogotá con enfoque en Responsabilidad Social Empresarial, a través de la aplicación de los Indicadores ETHOS – IARSE para negocios sustentables y responsables en su versión 3.1 y bajo sus cuatro dimensiones de ejecución. Dicha herramienta fue aplicada a gerentes generales y gerentes de calidad de 8 cadenas hoteleras, cuatro de ellas nacionales y cuatro internacionales que cuentan con hoteles en la ciudad de Bogotá. Las entrevistas a profundidad fueron realizadas en los meses de noviembre de 2015 a febrero de 2016. Una vez finalizadas las entrevistas la data fue procesada por el Software de análisis estadísticos SPSS versión 23.0. El enfoque utilizado en la presente investigación es cuantitativo, su diseño no experimental, de tipo transaccional. El resultado de la investigación concluyó que la gestión de la industria hotelera en Bogotá con enfoque en RSE es alto con 8,007 puntos sobre un puntaje de 10. Acorde a las cuatro dimensiones: Visión y estrategia, gobierno corporativo y gestión organizacional, dimensión social y ambiental; sus puntajes fueron 8,167, 8,419, 8,245 y 7,197 respectivamente. Finalmente, se recomienda, incluir estrategias de reducción de impactos negativos en el ambiente dentro de la visión y estrategia de las empresas; incluir estrategias de monitoreo a la cadena de valor; contar con una mayor participación de los empleados en la construcción de políticas y procedimientos; incluir a los diferentes grupos de interés con el fin de contar con una retroalimentación sobre los impactos de la operación; a nivel ambiental se recomienda tener un seguimiento estricto de la ejecución de los planes de acciónThe present investigation describes the actual Hotel Industry Management practices in terms of Corporate Social Responsibility in Bogota, through the application of the 3.1 version indicators ETHOS – IARSE created exclusively for responsible and sustainable businesses, with four scopes of execution. The instrument was applied from November 2015 to February 2016 in order to collect information from General Managers and Quality Managers within the eight main hotel chains, four of them national and four international chains. The information was collected under a qualitative approach and his design is transactional type and non-experimental, because his purpose intends to describe variables and to analyze his impact in a specific moment of time. The data were processed with SPSS software, version 23.0. The investigation concluded that Hotel Industry Management at Bogota, Colombia under the Corporate Social Responsibility approach, obtained a high management applications level, with a score of 8,007 on a scale of 10 points. Analyzing the four scopes of execution a) Strategy and Vision, b) Corporate Governance and Management, c) Social impact and d) Environmental impact, their scores were 8,167, 8,419, 8,245 and 7,197. After the development of the present research, it is recommended to include Company´s vision and strategies focused on the reduction of negative impacts over the environment. Moreover, to include a supply chain monitoring strategy in order to allow companies have a transparent management, as well as a responsible and positive impact in the society. Furthermore, under Governance; the recommendation is to engage employees during the development of corporate policies and procedures. Socially, we advice the engagement of multiple stakeholder to provide operational feedback as well as to allow providers to create or extend forced labor policies. Last but certainly not least, we encourage the close monitoring of strict action plan over the environmental factors.Tesi

Ceramic Femoral Components in Total Knee Arthroplasty - Two Year Follow-Up Results of an International Prospective Multi-Centre Study

BACKGROUND: Total knee arthroplasty can be considered as a reliable surgical procedure with a good long-term clinical result. However, implant failure due to particle induced aseptic loosening as well as the aspect of hypersensitivity to metal ions still remains an emerging issue. METHODS: The purpose of this prospective international multi-centre study was to evaluate the clinical and radiological outcomes and the reliability of the unconstrained Multigen Plus Total Knee System with a new BIOLOX® delta ceramic femoral component. Cemented total knee arthroplasty was performed on 108 patients (110 knees) at seven hospitals in three countries. Clinical and radiological evaluations were performed preoperatively, and after 3, 12 and 24 months postoperatively using the HSS-, WOMAC-, SF-36-score and standardised X-rays. RESULTS: The mean preoperative HSS-Score amounted to 55.5 ± 11.5 points and improved significantly in all postoperative evaluations (85.7 ± 11.7 points at 24 months). Furthermore, improvements in WOMAC- and SF-36-score were evaluated as significant at all points of evaluation. Radiolucent lines around the femoral ceramic component at 24 months were found in four cases. Progression of radiolucent lines was not seen and no implant loosening was observed. During the 24 month follow-up eight patients underwent subsequent surgery due to reasons unrelated to the implant material. CONCLUSIONS: The observed clinical and radiological results are encouraging for a long-term survival of the ceramic femoral component. Therefore, ceramic implants could be a promising solution not only for patients with allergies against metallic implant materials, but also for the osteoarthritic knee joint. Long-term follow-up is necessary to draw conclusions regarding the superiority of the ceramic knee implants concerning in vivo wear and long-term survivorship

Interobserver and intraobserver reliability of clinical assessments in knee osteoarthritis

© 2016 The Journal of Rheumatology. All rights reserved. Objective. Clinical examination of the knee is subject to measurement error. The aim of this analysis was to determine interobserver and intraobserver reliability of commonly used clinical tests in patients with knee osteoarthritis (OA). Methods. We studied subjects with symptomatic knee OA who were participants in an open-label clinical trial of intraarticular steroid therapy. Following standardization of the clinical test procedures, 2 clinicians assessed 25 subjects independently at the same visit, and the same clinician assessed 88 subjects over an interval period of 2-10 weeks; in both cases prior to the steroid intervention. Clinical examination included assessment of bony enlargement, crepitus, quadriceps wasting, knee effusion, joint-line and anserine tenderness, and knee range of movement (ROM). Intraclass correlation coefficients (ICC), estimated kappa (k), weighted kappa (k?), and Bland-Altman plots were used to determine interobserver and intraobserver levels of agreement. Results. Using Landis and Koch criteria, interobserver k scores were moderate for patellofemoral joint (k = 0.53) and anserine tenderness (k = 0.48); good for bony enlargement (k = 0.66), quadriceps wasting (k = 0.78), crepitus (k = 0.78), medial tibiofemoral joint tenderness (k = 0.76), and effusion assessed by ballottement (k = 0.73) and bulge sign (k? = 0.78); and excellent for lateral tibiofemoral joint tenderness (k = 1.00), flexion (ICC = 0.97), and extension (ICC = 0.87) ROM. Intraobserver k scores were moderate for lateral tibiofemoral joint tenderness (k = 0.60); good for crepitus (k = 0.78), effusion assessed by ballottement test (k = 0.77), patellofemoral joint (k = 0.66), medial tibiofemoral joint (k = 0.64), and anserine tenderness (k = 0.73); and excellent for effusion assessed by bulge sign (k? = 0.83), bony enlargement (k = 0.98), quadriceps wasting (k = 0.83), flexion (ICC = 0.99), and extension (ICC = 0.96) ROM. Conclusion. Among individuals with symptomatic knee OA, the reliability of clinical examination of the knee was at least good for the majority of clinical signs of knee OA