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Separation of Binary Mixtures of Propylene and Propane by Facilitated Transport through Silver Incorporated Poly(Ether-Block-Amide) Membranes

The separation of propylene and propane is a challenging task in petroleum refineries due to the similar molecular sizes and physical properties of two gases. Composite Poly(ether-block-amide) (Pebax-1657) membranes incorporated with silver tetra fluoroborate (AgBF4) in concentrations of 0-50% of the polymer weight were prepared by solution casting and solvent evaporation...

TU Bootis: An ambiguous W Ursae Majoris system

The W UMa system TU Boo has a period of 0.32438 days and a spectral type G3. We present here the first photometric analysis, based on photoelectric B and V light curves. The q-search method was used to find the preliminary range of the mass-ratio in order to search for the final solution. The unspotted solution was found by using the unperturbed part of the light curve and...

Calculation of Stresses and Slips in Helical Layers of Dynamically Bent Flexible Pipes

This paper deals with stress and displacement calculation in dynamically bent unbounded flexible pipes. The presented method is original in that movements and stresses of all helical layers are coupled. Good correlation between strain measurements and the theory has been found, and is shown in the paper.Cet article présente une méthode de détermination des contraintes et des d...

Écologie et économie des interactions entre filières agricoles et territoire : quels concepts et cadre d'analyse ?

Les filières agricoles connaissent une importante restructuration, se traduisant par une déconnexion de plus en plus forte entre opérateurs des filières et ceux des territoires, et entre lieux de production et usages des ressources locales. Les filières utilisent des ressources des territoires, mais n'y opèrent souvent qu'une partie de leur activité, et ne se soucient pas...

Advanced Integrated Workflows for Incorporating Both Production and 4D Seismic-Related Data into Reservoir Models

Reservoir models are used for predicting future oil recovery or for evaluating alternative field management scenarios. They can be considered as reliable when they account for all available data collected on the field: data are split into static data such as logs or measurements carried out on cores extracted from wells and dynamic data such as pressures and flow rates. Since the...

An atlas of images of Planetary Nebulae

A catalogue of narrowband CCD images of 100 southern and 1 northern Planetary Nebulae is presented. The data are images taken in the light of the Hα, Hβ, [OIII]500.7 nm, and [NII]658.4 nm lines. For each image we give the exposure time, the maximum extent of the nebula, and the seeing measured from the frames themselves. For ease of reference, we have added an alphabetical list...

3D mapping of optical turbulence using an atmospheric numerical model - I. A useful tool for the ground-based astronomy

These last years have seen the development of many devices to measure and monitor some atmospheric parameters characterizing the image degradation at the telescope focus. Many uncertainties about the possibility to forecast such parameters are real although this skill is fundamental for site testing, flexible scheduling and optimization of the performance of both interferometry...

Trace Analysis in the Petroleum Industry - Opening Address

In this symposium we will present and discuss the latest breakthroughs resulting from research in trace and ultra-trace analysis, in aqueous or organic media as well as in solids, throughout the chain of activities in the petroleum industry, from exploration to the use of hydrocarbons in engines.Le programme de cette rencontre vise à présenter et discuter les dernières avancées r...

Intra-articular injection of botulinum toxin type A for shoulder pain in glenohumeral osteoarthritis: a case series summary and review of the literature

Intra-articular injection of botulinum toxin type A for shoulder pain in glenohumeral osteoarthritis: a case series summary and review of the literature Nicoletta Cinone,1 Sara Letizia,1 Luigi Santoro,1 Michele Gravina,2 Loredana Amoruso,1 Franco Molteni,3 Maurizio Ranieri,1 Andrea Santamato1,4 1Physical Medicine and Rehabilitation Unit, Ospedali Riuniti, Università di Foggia...

Rovibrational excitation of HD molecules by He atoms

Rate coefficients for rovibrational transitions induced in HD by collisions with He are presented. Full quantum mechanical treatment has been used with the interaction potential surface calculated by Muchnick & Russek (1994). The vibrational 0 quenching rates of HD due to various perturbers are compared up to temperatures of 1500 K. The influence of vibrationally excited channels...

Effect of the Number of Pregnancies on Mortality Risk in HIV-Infected Women: a Prospective Cohort Study in Rural KwaZulu-Natal, South Africa

We investigated whether mortality risk increases with the number of full-term pregnancies in HIV-infected women. Our study is based on data from the ACDIS cohort, collected in rural KwaZulu-Natal, South Africa. Mortality risk for different number of pregnancies in HIV-infected women was analyzed using Cox proportional hazards model. The risk of TB or AIDS mortality in HIV...

Olfactory navigation versus olfactory activation: a controversy revisited

In the early 1970s, Floriano Papi and colleagues proposed the olfactory-navigation hypothesis, which explains the homing ability of pigeons by the existence of an odor-based map acquired through learning. This notion, although supported by some observations, has also generated considerable controversy since its inception. As an alternative, Paulo Jorge and colleagues formulated...

Minimally interrupted novel oral anticoagulant versus uninterrupted vitamin K antagonist during atrial fibrillation ablation

PurposeThe safety and efficacy of a minimally interrupted novel oral anticoagulant (NOAC) strategy at the time of atrial fibrillation (AF) ablation is uncertain. The purpose of this study was to compare rates of bleeding and thromboembolic events between minimally interrupted NOAC and uninterrupted vitamin K antagonist (VKA) in patients undergoing AF ablation.MethodsThis was a...

Comparison of statistical approaches for analyzing incomplete longitudinal patient-reported outcome data in randomized controlled trials

Comparison of statistical approaches for analyzing incomplete longitudinal patient-reported outcome data in randomized controlled trials Ines Rombach,1,2 Crispin Jenkinson,3 Alastair M Gray,1 David W Murray,2 Oliver Rivero-Arias4 1Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, UK; 2Nuffield Department of Orthopaedics...

Prenatal diagnosis and molecular cytogenetic characterization of a de novo duplication of 15q24.3-q26.1

Prenatal diagnosis and molecular cytogenetic characterization of a de novo duplication of 15q24.3-q26.1 Isabel Ochando,1,2 Melanie Cristine Alonzo Martínez,3 Ana María Serrano,3 Antonio Urbano,1 Eduardo Cazorla,3 Dolores Calvo,4 Joaquín Rueda1,2 1Genetics Unit, Unidad de Genética, Hospital Clínica Vistahermosa, Alicante, Spain; 2Departamento de Histología y Anatomía, Universidad...

uvby photometry of the chemically peculiar stars AR Aurigae, 3 Hydrae, 49 Cancri, and BX Bootis

Differential Strömgren uvby photometric observations from the Four College Automated Photoelectric Telescope are presented for four Chemically Peculiar stars of the upper main sequence: the HgMn star binary AR Aurigae and the magnetic stars 3 Hydrae, 49 Cancri, and BX Bootis. AR Aurigae shows little variability except during the primary and secondary eclipses. The 11.305 day...

Dynamique centrifuge du maraîchage périurbain de Lomé (Togo) en réponse à la pression foncière

Cette étude, menée à l’est de la ville de Lomé (capitale et plus grande ville du Togo), met en évidence la dynamique spatiale des cultures maraîchères en réponse à la pression foncière. Des images satellitaires TerraMetrics des archives Google Earth des années 2002, 2008 et 2014 ont été retenues pour l’analyse de l’évolution des périmètres maraîchers. Une enquête de terrain fond...

Récurrences virales après un geste opératoire : présentation de 3 cas et revue de littérature

Introduction : La famille des herpesviridae comprend de nombreux virus dont l’herpes simplex virus (HSV), le virus varicelle-zona (VZV), le cytomégalovirus (CMV), le virus d’Epstein-Barr (EBV). Le HSV, de part sa prévalence élevée (présent chez 90 % de la population adulte), est le plus fréquemment rencontré. Après la primo-infection, le HSV entre dans une phase de latence, puis...