Search results for "PION"

Discovering lactic acid bacteria by genomics

2002

International audience; This review summarizes a collection of lactic acid bacteria that are now undergoing genomic sequencing and analysis. Summaries are presented on twenty different species, with each overview discussing the organisms fundamental and practical significance, environmental habitat, and its role in fermentation, bioprocessing, or probiotics. For those projects where genome sequence data were available by March 2002, summaries include a listing of key statistics and interesting genomic features. These efforts will revolutionize our molecular view of Gram-positive bacteria, as up to 15 genomes from the low GC content lactic acid bacteria are expected to be available in the pu…

"Quand nous serons à mille, nous ferons une croix". Le contre-espionnage, un nouveau terrain de coopération entre gendarmes et policiers à la fin du …

2013

International audience; Si le travail respectif comme la collaboration des policiers et des gendarmes en matière de policejudiciaire et de maintien de l’ordre sont désormais mieux connus, leur coopération dans le contre-espionnagedemeure encore largement ignorée. En dépit de représentations mutuelles antagonistes, lalutte contre les menées étrangères montre l’entente entre les forces de l’ordre et révèle l’émergenced’un système national de sécurité intérieure, en partie structuré par cette défiance commune. Letravail des forces de l’ordre met également en lumière la xénophobie traversant alors une sociétéfrançaise voyant en chaque étranger, notamment d’Outre-Rhin, un espion possible.

Eiropas basketbola meistarsacīkstes Rīgā 1937. gadā no 2. līdz 7. maijam Sporta namā

1937

Polymeric micelles based on a polyaspartamide copolymer for pulmonary delivery of beclomethasone dipropionate

2015

The Role of Financial and Managerial Variables on the Policy towards Home-grown Players in English Soccer

2012

The training and development of young players both as athletes and individuals is one of the task soccer governing bodies assign to professional soccer team in order to fully exploit the social aspects of sport activities. Recently UEFA imposed new rules to improve the use of home-grown players. We analyze a panel data of English Premier and Championship league clubs for the seasons 2001-02 to 2005-06 in order to understand what clubs characteristics lead to the employment of young players in the team during official matches. Sport commercialization and the employment of star players have been considered harmful to this role. Our findings suggest that, counter-intuitively, economic and comm…

Tactical Analysis of the Winners' and Non-Winners' Performances in a Taekwondo University Championship

2014

The purpose of this study was to identify tactical characteristics of successful athletes who competed in a National University Championship. Results from the study allow taekwondo coaches and competitors to orient their training towards evidence-based practice to achieve success in competitions. Overall, taekwondo athletes performed more attacks than counterattacks. However, winners performed more counterattacks than non-winners. Moreover, winners performed more anticipatory counterattacks (ANC) and less indirect attacks (INA) than non-winners. Lastly, the order of the performance of the actions for non-winners was by decreasing frequency direct attack (DIA), INA, posterior counterattack …

An interpretation of EPR spectra of azide ligated superoxide dismutase from Propionibacterium shermanii

1995

A self-consistent description of the EPR spectra of the azide ligated SOD is obtained by taking into account the general configuration of the crystal field splitting in the crystal field Hamiltonian. The spread in the rhombicity parameter due to the presence of different conformational substates is introduced.

Biotic methylation of mercury by intestinal and sulfate-reducing bacteria and their potential role in mercury accumulation in the tissue of the soil-…

2014

Abstract Monomethylmercury as one of the most toxic mercury species influences the health and development of higher organisms and tends to accumulate in the tissue of animals and humans. The aim of this study was to explore the mercury methylating capability of (1) intestinal microbiota of the soil-living earthworm Eisenia foetida (E. foetida) and (2) intestinal sulfate reducing-bacteria in pure cultures. After exposing animals to inorganic mercury chloride (4 mg kg−1 Hg2+) in soil and sterile soil for ten days, the amount of methylmercury in tissue was measured. Despite sterilization of soil, the accumulation of the organic mercury species in tissue was 51 ng g−1. To elucidate the potentia…

The active center of superoxide dismutase from Propionibacterium shermanii

1996

A self-consistent description of the EPR spectra and of the Mossbauer spectra of the natural superoxide dismutase from Propionibacterium shermanii with ferric iron as an active centre is presented. The spectra were measured at pH 6.5, 7.8 and 9.4. The theoretical approach is based on the use of the complete crystal field Hamiltonian for the high-spin ferric complexes with due regard for the terms of the fourth power of the electronic spin. It is shown that a SOD molecule can exist in two conformations. The low-pH conformation has predominantly trigonal symmetry, while the high-pH conformation has the symmetry close to the «extreme rhombic». This interpretation is in full agreement with EXAF…

Ligand-Length Modification in CsPbBr3 Perovskite Nanocrystals and Bilayers with PbS Quantum Dots for Improved Photodetection Performance

2020

Nanocrystals surface chemistry engineering offers a direct approach to tune charge carrier dynamics in nanocrystals-based photodetectors. For this purpose, we have investigated the effects of altering the surface chemistry of thin films of CsPbBr3 perovskite nanocrystals produced by the doctor blading technique, via solid state ligand-exchange using 3-mercaptopropionic acid (MPA). The electrical and electro-optical properties of photovoltaic and photoconductor devices were improved after the MPA ligand exchange, mainly because of a mobility increase up to 5 &times