ASPECTS OF PRIMARY PRODUCTION EVOLUTION OF NATURAL GAS IN EU-28 AND IN SOME NON-EU COUNTRIES

The aim of this paper is that of identifying the characteristics of the evolution of the primary production of natural gas in the EU-28 as well as in other non-EU countries from 2003 to 2014

Etudes theoriques et expérimentales concernant l'évaluation des performances d'une automobile soumise aux accélérations

PARIS-CNAM (751032301) / SudocSudocFranceF

Estimating the 3D Printing Defects by Micro-Computed Tomography

Micro-computed tomography (µ-CT) is an X-ray technique with (sub)micron resolution, [...

Surgical Treatment in Silicone Oil-Associated Glaucoma

Glaucoma is a vision threatening, not uncommon complication of eyes that have undergone pars plana vitrectomy with silicone oil endotamponade. Although most patients respond well to medical antiglaucoma therapy, there are refractory cases where surgery is required to control the intraocular pressure. This review, following a comprehensive literature search in the Medline database, aims to present the most important surgical techniques currently in use for glaucoma associated with silicone oil endotamponade and their indication depending on the mechanism of glaucoma. In cases of pupillary block, the presence of a patent iridotomy or iridectomy must be ensured, either by laser or surgically. When silicone oil is in excess and whenever the retinal status permits it, partial or complete removal of the silicone oil should be performed. Trabeculectomy has shown higher failure rates and more complications in these cases compared to other indications, so alternate methods are warranted. For very high intraocular pressures, glaucoma drainage devices and transscleral cyclophotocoagulation are the most used options, with good efficacy and safety profiles, although rarely they may have serious complications. The Ex-PRESS mini shunt has shown excellent results and lower rates of complications. For less important IOP elevations, minimally invasive glaucoma surgery and selective laser trabeculoplasty may be used, either alone or in conjunction with other methods

Novel Nanocomposites Based on Functionalized Magnetic Nanoparticles and Polyacrylamide: Preparation and Complex Characterization

This paper reports the synthesis and complex characterization of nanocomposite hydrogels based on polyacrylamide and functionalized magnetite nanoparticles. Magnetic nanoparticles were functionalized with double bonds by 3-trimethoxysilyl propyl methacrylate. Nanocomposite hydrogels were prepared by radical polymerization of acrylamide monomer and double bond modified magnetite nanoparticles. XPS spectra for magnetite and modified magnetite were recorded to evaluate the covalent bonding of silane modifying agent. Swelling measurements in saline solution were performed to evaluate the behavior of these hydrogels having various compositions. Mechanical properties were evaluated by dynamic rheological analysis for elastic modulus and vibrating sample magnetometry was used to investigate the magnetic properties. Morphology, geometrical evaluation (size and shape) of nanostructural characteristics and the crystalline structure of the samples were investigated by SEM, HR-TEM and selected area electron diffraction (SAED). The nanocomposite hydrogels will be further tested for the soft tissue engineering field as repairing scaffolds, due to their mechanical and magnetization behavior that can stimulate tissue regeneration

Distribution data of the dormice species in Romania: a review

All four species of dormice present in Romania are listed as Vulnerable in the Romanian Red Book of Vertebrates and are protected by national laws. Even though they are important bioindicators of the condition of forest habitats, little is known about their distribution.We reviewed the distribution data for the Romanian dormice species: the Garden Dormouse (Eliomys quercinus), Hazel Dormouse (Muscardinus avellanarius), Edible Dormouse (Glis glis), and Forest Dormouse (Dryomys nitedula). Our sources include published scientific literature, online databases (such as GBIF, Observation.org and iNaturalist), museum collections, verified citizen’s data as well as original data. A database was organized in GeoPackage format in QGIS 3.16.0. Historical locations from old scientific papers were georeferenced and included in the database with all metadata found. Recent and original data locations were recorded using geographical coordinates. Our aim was to produce up to date distribution maps for the dormice species occuring in Romania that can be further used in potential habitat modelling for the study and protection of these species and their habitat.We found the most abundant observation were of Muscardinus avellanarius and the least recorded species was Eliomys quercinus, without any recent data

Distribution data of the dormice species in Romania: a review

All four species of dormice present in Romania are listed as Vulnerable in the Romanian Red Book of Vertebrates and are protected by national laws. Even though they are important bioindicators of the condition of forest habitats, little is known about their distribution.We reviewed the distribution data for the Romanian dormice species: the Garden Dormouse (Eliomys quercinus), Hazel Dormouse (Muscardinus avellanarius), Edible Dormouse (Glis glis), and Forest Dormouse (Dryomys nitedula). Our sources include published scientific literature, online databases (such as GBIF, Observation.org and iNaturalist), museum collections, verified citizen’s data as well as original data. A database was organized in GeoPackage format in QGIS 3.16.0. Historical locations from old scientific papers were georeferenced and included in the database with all metadata found. Recent and original data locations were recorded using geographical coordinates. Our aim was to produce up to date distribution maps for the dormice species occuring in Romania that can be further used in potential habitat modelling for the study and protection of these species and their habitat.We found the most abundant observation were of Muscardinus avellanarius and the least recorded species was Eliomys quercinus, without any recent data