Search results for "BD"

Current strategies to improve the efficacy and the delivery of nucleic acid based drugs

2010

One center experience of pneumatosis cystoides intestinalis

2017

Introduction Pneumatosis cystoides intestinalis (PCI) is a rare benign condition, in which gas is found in a linear or cystic form in the subserosa or submucosa. The subserous cysts are most frequently found in the small bowel while the submucous localizations are predominantly seen in the colonic wall. Peritoneal pneumatosis, abdominal gas cysts, cystic lymphopneumatosis, intestinal emphysema or intestinal gas cysts are terms used to describe the occurrence of multiple, gas-filled cysts, of the gastrointestinal tract. Incidence of PCI was reported to be 0.03% in the general population. It is a radiographic finding and not a diagnosis, as the etiology varies from benign conditions to fulmin…

Traumatic Isolated Intramural Duodenal Hematoma Causing Intestinal Obstruction

2015

A 21-year-old man was admitted 36 hours after a blunt abdominal trauma occurred during a sporting competition. He complained of colic epigastric abdominal pain, nausea, and vomiting. He was hemodynamically stable; blood counts and metabolic panel were normal. Abdominal CT showed an intestinal obstruction caused by an 8 x 6 x 11 cm hematoma on the right lateral duodenal wall without signs of active bleeding (Figure 1). He underwent gastric decompression and started total parenteral nutrition and intravenous pump inhibitors. Esophagogastroduodenoscopy (EGD) performed 48 hours after the diagnosis showed an extrinsic compression by a bluish obstruction in the first part of the duodenum resembli…

Numerical Simulations of the Hydrodynamics of the Abdominal Aorta Aneurysm (AAA) Using a Smoothed Particle Hydrodynamics Code with Deformable Wall Pr…

2018

We present some preliminary results of the numerical simulations of the hydrodynamic characteristics of an abdominal aorta aneurysm (AAA) patient specific test case. Images of the AAA lumen have been acquired in 10 discrete time-steps through a stabilized cardiac cycle by electrocardiogram-gated computer tomography angiography, and are used to approximate the in vivo, time dependent kinematic fields of the (internal) arterial wall. The flow field is simulated by a Smoothed Particle SPH numerical model, where the kinematics of the boundary of the computational domain (the internal aortic vessel) is the one computed by the above procedure. The outputs of the SPH model, i.e., pressure and flow…

Molybdenum Open-Shell Organometallics. Spin State Changes and Pairing Energy Effects

1997

International audience

Overview and future challenges of nearly zero energy buildings (nZEB) design in Southern Europe

2017

In times of great transition of the European construction sector to energy efficient and nearly zero energy buildings (nZEB), a market observation containing qualitative and quantitative indications should help to fill out some of the current gaps concerning the EU 2020 carbon targets. Next to the economic challenges, there are equally important factors that hinder renovating the existing residential building stock and adding newly constructed high performance buildings. Under these circumstances this paper summarises the findings of a cross-comparative study of the societal and technical barriers of nZEB implementation in 7 Southern European countries. The study analyses the present situat…

Energy certification of buildings: A comparative analysis of progress towards implementation in European countries

2010

Abstract The Energy Performance Building Directive (Directive 2002/91/EC) introduced the compulsory energy certification of buildings in the EU from 2006 and it has played a key role in the common policy to monitor and reduce energy consumption. In order to assess the experience gained in this field in Europe overall, and in particular against the highly diverse settings of the different European nations, this paper examines the extent to which the Directive has been implemented by the 27 EU Member States. This is done via a comparative analysis assisted by two different indicators: of uniformity and of excellence. The measure of uniformity makes it possible to assess the degree of harmony …

A structured filter for Markovian switching systems

2014

In this work, a new methodology for the structuring of multiple model estimation schemas is developed. The proposed filter is applied to the estimation and detection of active mode in dynamic systems. The discrete-time Markovian switching systems represented by several linear models, associated with a particular operating mode, are studied. Therefore, the main idea of this work is the subdivision of the models set to some subsets in order to improve the detection and estimation performances. Each subset is associated with sub-estimators based on models of the subset. In order to compute the global estimate and subset probabilities, a global estimator is proposed. Theoretical developments ba…

ag) Push-and-pull enteroscopy in the small bowel using the double-balloon technique: results of a prospective European multicenter study.

2005

BACKGROUND AND STUDY AIMS The aim of this study was to evaluate the feasibility, safety, and clinical impact of push-and-pull enteroscopy (PPE) in patients with suspected or documented small-bowel diseases, in a prospective multicenter trial in three European medical centers. PATIENTS AND METHODS A total of 100 patients (mean age 56 +/- 16 years; range 13 - 90) were included at the three institutions between July and November 2004. The leading symptoms were: acute recurrent or chronic gastrointestinal bleeding (n = 64), polyposis syndrome (n = 8), chronic abdominal pain (n = 7), chronic diarrhea (n = 7), and others (n = 14). RESULTS No major PPE-associated complications such as perforation,…

Study of the chlorfenvinphos pesticide removal under different anodic materials and different reactor configuration.

2021

The present manuscript focuses on the study of the electrochemical oxidation of the insecticide Chlorfenvinphos (CVP). The assays were carried out under galvanostatic conditions using boron-doped diamond (BDD) and low-cost tin dioxide doped with antimony (Sb-doped SnO2) as anodes. The influence of the operating variables, such as applied current density, presence or absence of a cation-exchange membrane and concentration of supporting electrolyte, was discussed. The results revealed that the higher applied current density the higher degradation and mineralization of the insecticide for both anodes. The presence of the membrane and the highest concentration of Na2SO4 studied (0.1 M) as a sup…