Search results for "GC"
showing 10 items of 606 documents
CGCG 480-022: A Distant Lonesome Merger?
2006
[EN]We present a complete analysis, which includes morphology, kinematics, stellar populations, and N-body simulations, of CGCG 480-022, the most distant (cz = 14,317 km s-1) isolated galaxy studied so far in such detail. The results all support the hypothesis that this galaxy has suffered a major merger event with a companion of ~0.1 times its mass. Morphology reveals the presence of a circumnuclear ring and possibly further ring debris. The radial velocity curve looks symmetrical, while the velocity dispersion increases with radius, reaching values that do not correspond to a virialized system. Moreover, this galaxy deviates significantly from the fundamental plane and the Faber-Jackson r…
The Gaia-ESO survey: Discovery of a spatially extended low-mass population in the Vela OB2 association
2015
The nearby (distance~350-400 pc), rich Vela OB2 association, includes $\gamma^2$ Velorum, one of the most massive binaries in the solar neighbourhood and an excellent laboratory for investigating the formation and early evolution of young clusters. Recent Gaia-ESO survey observations have led to the discovery of two kinematically distinct populations in the young (10-15 Myr) cluster immediately surrounding $\gamma^2$ Velorum. Here we analyse the results of Gaia-ESO survey observations of NGC 2547, a 35 Myr cluster located two degrees south of $\gamma^2$ Velorum. The radial velocity distribution of lithium-rich pre-main sequence stars shows a secondary population that is kinematically distin…
Volatile Profile of two Strawberry variety, " S candonga and F. fortuna" by SPME-GC/MS
2013
Background: The cultivated strawberry brings the the botanical name Fragaria X ananassa and is derived from the crossing of different species of Fragaria, brought to Europe from America in the sixteenth century. Strawberries are widely appreciated and consumed as a pleasant-tasting fruit either in fresh form or as processed product. Of the many factors than can affect the quality of fruit (sensorial and nutritional), the variety is especially important, but it is also affected by crop conditions. The main characteristics related to the fruit quality and nutritional attributes were assessed in several varieties of strawberry. Objective: The aim of this work was to study the aromatic componen…
Materials Communicating with the BIM: Aims and First Results of the McBIM Project
2019
This paper introduces McBIM, a French national research project working on on-line monitoring on concrete structure. This project gathers 3 french laboratories (the CRAN, LAAS and LIB) associated with one company (360SmartConnect/FINAO SAS) that are working together from 2018 to 2021. It proposes 1) to design a “communicating concrete”, made of concrete equipped with embedded low-energy wireless microsensor network, able to manage and exchange data using BIM standards, and 2) to demonstrate the usefulness of this approach across several building lifecycle phases, namely the manufacturing, construction and exploitation phases for structural health monitoring. The paper will first start by in…
Mechanical and acoustical behavior of sugarcane and flax fibres reinforced biocomposite
2017
For reasons of comfort, modern constructions require acoustic and thermal insulating materials, offering good mechanical performances. In this context, the valorization of plant fibres from the agro-food industry presents economic and environmental benefits. Thus, the aim of the present study is to develop a multifunctional sugarcane fibres reinforced epoxy porous composite combining good acoustic and mechanical properties.The study of the bagasse fibres geometry has shown that fibres’ length and diameter distribution can be fitted by lognormal laws. Composites manufactured by thermocompression process with an epoxy matrix were characterized using an experimental design whose parameters wer…
Smiltsērkšķu ogu (Hippophae Rhamnoides) ekstrakcijas produktu sastāva izvērtējums ar hromatogrāfijas un masspektrometrijas metodēm
2022
Smiltsērkšķu ogu (Hippophae Rhamnoides) ekstrakcijas produktu sastāva izvērtējums ar hromatogrāfijas un masspektrometrijas metodēm. Zinātniskais vadītājs Dr. chem., asoc. prof. Pēteris Mekšs. Bakalaura darbs analītiskajā ķīmijā, 36 lappuses, 14 tabulas, 7 attēli, 30 literatūras avoti, 3 pielikumi, latviešu valodā. Darbā analizēti smiltsērkšķu eļļas ekstrakti ar n-heksānu, saulespuķu eļļu un olīveļļu, noteikts to ķīmiskais sastāvs ar gāzu hromatogrāfijas masspektrometrijas (GC-MS) metodi. Iegūtie masspektri tika atpazīti ar datu bāzi Nist02. Literatūras apskatā aplūkota informācija par smiltsērkšķu eļļas, saulespuķu eļļas un olīveļļas ķīmisko sastāvu, smiltsērkšķu eļļas stabilitāti, nozīmi c…
Fibrinolysis Sistem, Monitored by Thromboelastography (TEG), and PAI-1 Activity in Septic Patients Undergoing Tight Glycemic Control
2009
Characterization of Leaf Essential Oil Composition of Homozygous and HeterozygousCitrus clementinaHort. Extan. and its Ancestors
2013
Clementine is a natural tangor, resulting from an interspecific cross between mandarin and sweet orange. Gametic embryogenesis, allowing the single-step development of complete homozygous line from the heterozygous parents, increases the efficiency of perennial crop breeding programs. Tri-haploids have been regenerated through pollen embryogenesis (specifically, by anther culture) of Citrus clementina Hort. ex Tan., cv. Nules. Two of them (HOMO1 and HOMO2) have been acclimatized and grafted in vivo in 2000. Research regarding the chemical characteristics of plant regenerated by pollen embryogenesis or gynogenesis are useful to study the “gametoclonal variation”, as well as for further appli…
Sperm imprinting integrity in seminoma patients?
2018
IF 4.990; International audience; BackgroundTesticular germ cell tumor such as seminoma is strongly associated with male reproductive problems commonly associated with the alteration of sperm parameters as described in testicular dysgenesis syndrome. Interestingly, numerous studies have reported that the precursor of germ cell cancer, germ cell neoplasia in situ (GCNIS), present similarities to fetal gonocytes, specifically characterized by global DNA hypomethylation particularly on imprinting sequences. These disorders may have a common origin derived from perturbations of embryonal programming during fetal development. Presently, there is no available information concerning the sperm DNA …
Structural Characterisation of Complex Layered Double Hydroxides and TGA-GC-MS Study on Thermal Response and Carbonate Contamination in Nitrate- and …
2015
Layered double hydroxides (LDHs) are versatile materials used for intercalating bioactive molecules in the fields of pharmaceuticals, nutraceuticals and cosmetics, with the purpose of protecting them from degradation, enhancing their water solubility to increase bioavailability and improving their pharmacokinetic properties and formulation stability. Moreover, LDHs are used in various technological applications to improve stability and processability. The crystal chemistry of hydrotalcite-like compounds was investigated by X-ray powder diffraction (XRPD), automated electron diffraction tomography (ADT) and thermogravimetric analysis (TGA)-GC-MS to shed light on the mechanisms involved in io…