160 research outputs found
Towards a Re-Definition of Technology Management
The paper is proposing an historical approach of the definition and constitution of technology management as a discipline leading to a re-visited approach more in line with contemporary issues and problems facing businesses. It is suggested to expand its scope to the strategic management of technology and innovation
Vers une refondation du management technologique
National audienceLa question de la pertinence de maintenir, voire de développer, des recherches et des enseignements spécifiques en management technologique participe clairement des débats actuels sur le rôle et la place de la recherche scientifique et technique dans la société française (Etats Généraux de la Recherche, 2004, Projet de Loi d'Orientation et de Programmation de la Recherche et de l'Innovation, 2005) et de l'innovation technologique dans la croissance de son économie (Rapport Beffa, 2005). Tant les enjeux de ces débats nationaux que le moment de leur émergence sont considérables. Un consensus s'est établi sur les points de départ : en France la recherche et l'économie sont à un tournant historique. Comme le formule joliment E. Le Boucher (2005), « son industrie date et ses efforts de recherche sont insuffisants et ils n'aboutissent pas... Sa compétitivité est menacée par les Etats-Unis d'un côté, et par la Chine de l'autre ». Lors de sa conférence de presse du 6 janvier 2005, J.L. Beffa affirme même que « l'erreur est d'avoir lié un mouvement de privatisation à un mouvement de non-intervention de l'Etat dans le domaine de l'innovation industrielle.
Vers une refondation du management technologique
La question de la pertinence de maintenir, voire de développer, des recherches et des enseignements spécifiques en management technologique participe clairement des débats actuels sur le rôle et la place de la recherche scientifique et technique dans la société française (Etats Généraux de la Recherche, 2004, Projet de Loi d'Orientation et de Programmation de la Recherche et de l'Innovation, 2005) et de l'innovation technologique dans la croissance de son économie (Rapport Beffa, 2005). Tant les enjeux de ces débats nationaux que le moment de leur émergence sont considérables. Un consensus s'est établi sur les points de départ : en France la recherche et l'économie sont à un tournant historique. Comme le formule joliment E. Le Boucher (2005), « son industrie date et ses efforts de recherche sont insuffisants et ils n'aboutissent pas... Sa compétitivité est menacée par les Etats-Unis d'un côté, et par la Chine de l'autre ». Lors de sa conférence de presse du 6 janvier 2005, J.L. Beffa affirme même que « l'erreur est d'avoir lié un mouvement de privatisation à un mouvement de non-intervention de l'Etat dans le domaine de l'innovation industrielle. »management technologique
Towards a Re-Definition of Technology Management
The paper is proposing an historical approach of the definition and constitution of technology management as a discipline leading to a re-visited approach more in line with contemporary issues and problems facing businesses. It is suggested to expand its scope to the strategic management of technology and innovation.technology management
Blood contains circulating cell-free respiratory competent mitochondria.
Mitochondria are considered as the power-generating units of the cell due to their key role in energy metabolism and cell signaling. However, mitochondrial components could be found in the extracellular space, as fragments or encapsulated in vesicles. In addition, this intact organelle has been recently reported to be released by platelets exclusively in specific conditions. Here, we demonstrate for the first time, that blood preparation with resting platelets, contains whole functional mitochondria in normal physiological state. Likewise, we show, that normal and tumor cultured cells are able to secrete their mitochondria. Using serial centrifugation or filtration followed by polymerase chain reaction-based methods, and Whole Genome Sequencing, we detect extracellular full-length mitochondrial DNA in particles over 0.22 µm holding specific mitochondrial membrane proteins. We identify these particles as intact cell-free mitochondria using fluorescence-activated cell sorting analysis, fluorescence microscopy, and transmission electron microscopy. Oxygen consumption analysis revealed that these mitochondria are respiratory competent. In view of previously described mitochondrial potential in intercellular transfer, this discovery could greatly widen the scope of cell-cell communication biology. Further steps should be developed to investigate the potential role of mitochondria as a signaling organelle outside the cell and to determine whether these circulating units could be relevant for early detection and prognosis of various diseases
De novo TBR1 variants cause a neurocognitive phenotype with ID and autistic traits:report of 25 new individuals and review of the literature
TBR1, a T-box transcription factor expressed in the cerebral cortex, regulates the expression of several candidate genes for autism spectrum disorders (ASD). Although TBR1 has been reported as a high-confidence risk gene for ASD and intellectual disability (ID) in functional and clinical reports since 2011, TBR1 has only recently been recorded as a human disease gene in the OMIM database. Currently, the neurodevelopmental disorders and structural brain anomalies associated with TBR1 variants are not well characterized. Through international data sharing, we collected data from 25 unreported individuals and compared them with data from the literature. We evaluated structural brain anomalies in seven individuals by analysis of MRI images, and compared these with anomalies observed in TBR1 mutant mice. The phenotype included ID in all individuals, associated to autistic traits in 76% of them. No recognizable facial phenotype could be identified. MRI analysis revealed a reduction of the anterior commissure and suggested new features including dysplastic hippocampus and subtle neocortical dysgenesis. This report supports the role of TBR1 in ID associated with autistic traits and suggests new structural brain malformations in humans. We hope this work will help geneticists to interpret TBR1 variants and diagnose ASD probands
Tuberculosis in seals caused by a novel member of the Mycobacterium tuberculosis complex: Mycobacterium pinnipedii sp. nov.
A comparison of Mycobacterium tuberculosis complex isolates from seals (pinnipeds) in Australia, Argentina, Uruguay, Great Britain and New Zealand was undertaken to determine their relationships to each other and their taxonomic position within the complex. Isolates from 30 cases of tuberculosis in six species of pinniped and seven related isolates were compared to representative and standard strains of the M. tuberculosis complex. The seal isolates could be distinguished from other members of the M. tuberculosis complex, including the recently defined ‘Mycobacterium canettii’ and ‘Mycobacterium caprae’, on the basis of host preference and phenotypic and genetic tests. Pinnipeds appear to be the natural host for this ‘seal bacillus’, although the organism is also pathogenic in guinea pigs, rabbits, humans, Brazilian tapir (Tapirus terrestris) and, possibly, cattle. Infection caused by the seal bacillus is predominantly associated with granulomatous lesions in the peripheral lymph nodes, lungs, pleura, spleen and peritoneum. Cases of disseminated disease have been found. As with other members of the M. tuberculosis complex, aerosols are the most likely route of transmission. The name Mycobacterium pinnipedii sp. nov. is proposed for this novel member of the M. tuberculosis ..
Value of ultrasonography as a marker of early response to abatacept in patients with rheumatoid arthritis and an inadequate response to methotrexate: results from the APPRAISE study
Objectives: To study the responsiveness of a combined power Doppler and greyscale ultrasound (PDUS) score for assessing synovitis in biologic-naïve patients with rheumatoid arthritis (RA) starting abatacept plus methotrexate (MTX). Methods: In this open-label, multicentre, single-arm study, patients with RA (MTX inadequate responders) received intravenous abatacept (∼10 mg/kg) plus MTX for 24 weeks. A composite PDUS synovitis score, developed by the Outcome Measures in Rheumatology–European League Against Rheumatism (OMERACT–EULAR)-Ultrasound Task Force, was used to evaluate individual joints. The maximal score of each joint was added into a Global OMERACT–EULAR Synovitis Score (GLOESS) for bilateral metacarpophalangeal joints (MCPs) 2–5 (primary objective). The value of GLOESS containing other joint sets was explored, along with clinical efficacy. Results: Eighty-nine patients completed the 24-week treatment period. The earliest PDUS sign of improvement in synovitis was at week 1 (mean change in GLOESS (MCPs 2–5): −0.7 (95% CIs −1.2 to −0.1)), with continuous improvement to week 24. Early improvement was observed in the component scores (power Doppler signal at week 1, synovial hyperplasia at week 2, joint effusion at week 4). Comparable changes were observed for 22 paired joints and minimal joint subsets. Mean Disease Activity Score 28 (C reactive protein) was significantly reduced from weeks 1 to 24, reaching clinical meaningful improvement (change ≥1.2) at week 8. Conclusions: In this first international prospective study, the composite PDUS score is responsive to abatacept. GLOESS demonstrated the rapid onset of action of abatacept, regardless of the number of joints examined. Ultrasound is an objective tool to monitor patients with RA under treatment. Trial registration number: NCT00767325
The Changing Face of the Epidemiology of Tuberculosis due to Molecular Strain Typing: A Review
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