Search results for "bp"
showing 10 items of 672 documents
Nouvelles perspectives concernant la structure et la fonction du domaine carboxyl terminal de Hfq
2015
Accumulating evidence indicates that RNA metabolism components assemble into supramolecular cellular structures to mediate functional compartmentalization within the cytoplasmic membrane of the bacterial cell. This cellular compartmentalization could play important roles in the processes of RNA degradation and maturation. These components include Hfq, the RNA chaperone protein, which is involved in the post-transcriptional control of protein synthesis mainly by the virtue of its interactions with several small regulatory ncRNAs (sRNA). The Escherichia coli Hfq is structurally organized into two domains. An N-terminal domain that folds as strongly bent β-sheets within individual protomers to…
Evaluation of IGF1 and IGFBP3 during diet therapy in patients affected by food allergy with complex nutritional risk
1996
The seric levels of IGF1 and IGFBP3 and their molar ratio, together with clinical and auxological parameters, have been evaluated in 16 patients (8 males and 8 females), of average age of 11.6±8.66 months, who were suffering from complex food allergy and were subjected to a balanced diet whill excluded the "offending" food. The results, compared "with those of a control population of same age and body surface, have showln a significative reduction of IGF1 and an increase of the molar ratio IGFBP3/IGF1. These observations suggest that, in spite of no significative variation of growth in height and weight, an exclusion diet for a food allergy can reduce the biological activity of some hormona…
Software for automated application of a reference-based method fora posterioridetermination of the effective radiographic imaging geometry
2005
Objectives: Presentation and validation of software developed for automated and accurate application of a reference-based algorithm (reference sphere method: RSM) inferring the effective imaging geometry from quantitative radiographic image analysis. Methods: The software uses modern pattern recognition and computer vision algorithms adapted for the particular application of automated detection of the reference sphere shadows (ellipses) with subpixel accuracy. It applies the RSM algorithm to the shadows detected, thereby providing threedimensional Cartesian coordinates of the spheres. If the three sphere centres do not lie on one line, they uniquely determine the imaging geometry. Accuracy …
Regularized multiresolution spatial unmixing for ENVISAT/MERIS and landsat/TM image fusion
2011
Earth observation satellites currently provide a large volume of images at different scales. Most of these satellites provide global coverage with a revisit time that usually depends on the instrument characteristics and performance. Typically, medium-spatial-resolution instruments provide better spectral and temporal resolutions than mapping-oriented high-spatial-resolution multispectral sensors. However, in order to monitor a given area of interest, users demand images with the best resolution available, which cannot be reached using a single sensor. In this context, image fusion may be effective to merge information from different data sources. In this letter, an image fusion approach ba…
Synthesis and study of new fluorescent probes for optical imaging, Cherenkov imaging and multimodal imaging
2015
The goal of this work was to prepare and study new fluorescent probes, which could give rise to novel optical or Cherenkov imaging agents. The first section of this work describes the synthesis of fluorescent subphthalocyanines and phthalocyanines probes, which possess relevant chemicals groups suitable for optical imaging applications. The optical and physico-chemical properties of the new probes were carefully examined to ensure they comply with the specification of the fluorophores for the desired application. The second part focused on the subsequent development of a few selected probes into real imaging agents. The biovectorisation of subphtalocyanines was achieved upon conjugation of …
Revisited BIA-MS combination: Entire "on-a-chip" processing leading to the proteins identification at low femtomole to sub-femtomole levels
2008
International audience; We present the results of a study in which biomolecular interaction analysis (BIA, Biacore 2000) was combined with mass spectrometry (MS) using entire "on-a-chip" procedure. Most BIA-MS studies included an elution step of the analyte prior MS analysis. Here, we report a low-cost approach combining Biacore analysis with homemade chips and MS in situ identification onto the chips without elution step. First experiments have been made with rat serum albumin to determine the sensitivity and validation of the concept has been obtained with an antibody/antigen couple. Our "on-a-chip" procedure allowed complete analysis by MS-MS of the biochip leading to protein identificat…
Were Prestigious Independent Directors Responsible for the Subprime Crisis?
2018
We study the independence ratio, as well as the prestige, reputational incentives, experience, and financial expertise of independent directors for 767 U.S. banks from 2000 to 2015, to concentrate on causes of the subprime crisis: short-termism, poor monitoring, and excessive risk-taking. We find that higher independence ratios decrease the monitoring quality of the board, increase short-term incentives for the CEO, and promote greater subprime risk-taking. Our results thereby suggest that, while official responses to the subprime crisis claim that banks were not independent enough, rising independence ratios following Enron and Sabanes Oxley were a major contributing cause of the subprime …
ASSOCIAZIONE DI SERENOA REPENS, URTICA DIOICA E PINUS PINASTER. SICUREZZA ED EFFICACIA NEL TRATTAMENTO DEI SINTOMI DEL BASSO TRATTO URINARIO. STUDIO …
2010
INTRODUCTION. Serenoa repens (saw palmetto) has been employed for the treatment of lower urinary tract symptoms (LUTS) for several years. Its mechanism of action is believed to be due to antiandrogenic, antiproliferative and antinflammatory properties. An association of Serenoa with the nettle “Utica dioica” showing antiproliferative activity and the pine “Pinus pinaster” derivative, showing antinflammatory action, has been proposed in recent years. Such an action is hoped to act not only by reducing LUTS but also by preventing the development of prostate cancer. MATHERIAL AND METHODS. During the years 2007 and 2008, 320 patients suffering from LUTS were treated with an association of Seren…
Prácticas de laboratorio alineadas con el diseño de un proyecto de investigación mediante metodología docente ABP: el proyecto Agua de Fagos
2016
[ES] Las prácticas de laboratorio académicas no están, en general, diseñadas para desarrollar las competencias relacionadas con el trabajo independiente del alumno. En el presente artículo proponemos una nueva forma de diseñar prácticas experimentales, alineando el desarrollo de un proyecto de investigación escrito con la realización posterior del proyecto a nivel práctico en el laboratorio, en un poderoso ensamble que genera aprendizajes muy interesantes para desarrollar las competencias relacionadas con la autonomía del alumno en el laboratorio experimental. La metodología utilizada es el aprendizaje basado en problema (ABP).
Kvalitātes nodrošināšanas procesu analīze un ieviešana mazā uzņēmumā
2019
Maģistra darba mērķis ir izpētīt, kā mazā uzņēmumā ieviest kvalitātes nodrošināšanas procesu, un veikt tā analīzi. Darbā tiek analizēts esošais kvalitātes nodrošināšanas process un, balstoties un nozares standartiem un labāko praksi, ir izstrādātas jaunas Jira Software darbplūsmas, jeb pieteikumu risināšanas procesi, kuri ir specifiski pielāgota uzņēmuma “Mapon” vajadzībām. Darba ietvaros tika apskatīti vairāki nozares standarti un labās prakses, kas varētu palīdzēt uzņēmumam procesu uzlabošanai. Darba ietvaros tika veikta analīze sākotnējam pieteikumu risināšanas procesam. Balstoties uz iegūto informāciju tika izveidots un analizēts uzlabots pieteikumu risināšanas process. Sākotnējā viena …