A Bibliometric Analysis of the Top 100 Cited Articles on Hepatic Magnetic Resonance Imaging.

The purpose of this study is to guide the readers to the impact of the articles published on hepatic magnetic resonance imaging (MRI). We searched Scopus using 10 different search terms for hepatic MRI. The selected studies were thoroughly reviewed by two independent authors and any disagreement was sorted out by mutual consensus. The list of articles and journals was downloaded into an excel spreadsheet. Only the top 100 cited articles were selected by mutual consensus among all the authors. These articles were further read in the full-text form and were further categorized into subgroups. Three authors independently reviewed the top 100 selected articles, and subsequently data was extracted from them and analyzed. Our study showed that the highest number of top 100 cited articles on hepatic MRI were from Radiology (30 articles) followed by European Radiology (14 articles). The American Journal of Roentgenology, Radiographics, and Journal of Magnetic Resonance had seven articles each. The United States had the highest number of articles by region. Nineteen other journals contributed only one article each to the list of top 100 cited articles. The contribution of authors to the top 100 cited articles was reviewed; all the authors contributing with more than two articles to the highly cited articles are given in Table 3 in the supplementary material. The maximum number of articles were published during 2009 (14 articles), and for a five-year period, the maximum contribution was made during 2008-2013 (44 articles). Our analysis gives an insight on the frequency of citations of top articles on hepatic MRI, categorizes the subtopics, the timeline of the publications, and contributions from different geographic distributions

Effects of wasted anesthetic gases on human lymphocytes – A genetic study

AbstractInformation on potential genetic damage in humans after exposure to waste anaesthetic gases in Egyptian hospitals is scarce. To evaluate the possible genotoxic effects of waste anaesthetic gases, the chromosomal aberrations [CA] and the sister chromatid exchange [SCE] tests, were studied in peripheral blood lymphocytes in 26 operating room personnel (exposed group) currently employed at Tanta University hospitals, in comparison to a group of 13 non-exposed persons (control group), matched by age, sex and smoking habits. The results showed a statistically significant increase in chromosomal aberrations and sister chromatid exchange in the exposed persons in comparison to controls. Also it suggests that exposure to waste anaesthetic gases has the potential to cause changes in human genome

Left Atrium of the Mature Dromedary Camel Heart (Camelus dromedaries): Microanatomy

The current work was carried out on the left atrium of ten healthy mature camels. The specimens were collected and examined histologically after being fixed in 10% Neutral Buffered Formalin. The atrium was processed till paraffin sections obtained and stained. Microscopically, the left atrium is consisted of three major tunics; the internal endocardium, the middle myocardium, and the external epicardium. The endocardium is the inner layer of the atrial wall and consisting of the endothelial layer of simple squamous epithelium that lining the atrium, subendothelial layer of loose connective tissue supporting the endothelium and the subendocardial layer that connecting the endocardium with the myocardium. Myocardium is the middle layer of the atrium, forming the main mass of the atrial wall. It is sandwiched between an outer epicardium, that covers the atrium, and an inner endocardium, that lines the atrial chamber. It is mainly formed from bundles of the contractile cardiac myocytes; myocardiocytes that arranged in strands or branching columns. The left atrium is externally covered with the epicardium that is relatively thin in comparison with the myocardium and consisting of a subepicardial layer of highly vascularized loose connective tissue and the mesothelium of simple squamous epithelium

Comment optimiser les formations ouvertes et à distance ? Le cas de PRO FLE à l’Université Libanaise. « L’eau, goutte à goutte creuse le roc ! »

[EN] In 2009 a distance learning system of the French Teachers Professionalization - PRO FLE is set up within the Lebanese University. This training has a high reputation with French teachers. However, all students do not benefit to the same degree. This research aims to study the impact of PRO FLE field and thinks on ways to better performance[ES] En 2009, un sistema de enseñanza a distancia de los franceses maestros Profesionalización - PRO FLE está configurado dentro de la Universidad del Líbano. Esta formación tiene una gran reputación con los maestros franceses. Sin embargo, todos los estudiantes no se benefician en la misma medida. Esta investigación tiene como objetivo estudiar el impacto del campo de FLE PRO y reflexionar sobre las formas de mejorar el rendimiento[FR] En 2009 un dispositif d’enseignement à distance des enseignants de français PRO FLEProfessionnalisation en FLE est mis en place au sein de l’Université Libanaise. Cette formation jouit d’une grande notoriété auprès des enseignants de français. Cependant, tous les stagiaires n’en profitent pas au même degré. Cette recherche vise à étudier l’impact de PRO FLE sur le terrain et à réfléchir sur les moyens pour un meilleur rendement.Hafez, SA. (2017). Comment optimiser les formations ouvertes et à distance ? Le cas de PRO FLE à l’Université Libanaise. « L’eau, goutte à goutte creuse le roc ! ». En Palabras e imaginarios del agua. Les mots et les imaginaires de léau. XXV coloquio AFUE. Editorial Universitat Politècnica de València. 131-139. https://doi.org/10.4995/XXVColloqueAFUE.2016.2568OCS13113

OBSERVER-BASED-CONTROLLER FOR INVERTED PENDULUM MODEL

This paper presents a state space control technique for inverted pendulum system. The system is a common classical control problem that has been widely used to test multiple control algorithms because of its nonlinear and unstable behavior. Full state feedback based on pole placement and optimal control is applied to the inverted pendulum system to achieve desired design specification which are 4 seconds settling time and 5% overshoot. The simulation and optimization of the full state feedback controller based on pole placement and optimal control techniques as well as the performance comparison between these techniques is described comprehensively. The comparison is made to choose the most suitable technique for the system that have the best trade-off between settling time and overshoot. Besides that, the observer design is analyzed to see the effect of pole location and noise present in the system

A Review of Resonant Converter Control Techniques and The Performances

paper first discusses each control technique and then gives experimental results and/or performance to highlights their merits. The resonant converter used as a case study is not specified to just single topology instead it used few topologies such as series-parallel resonant converter (SPRC), LCC resonant converter and parallel resonant converter (PRC). On the other hand, the control techniques presented in this paper are self-sustained phase shift modulation (SSPSM) control, self-oscillating power factor control, magnetic control and the H-∞ robust control technique

A Review of Resonant Converter Control Techniques and The Performances

paper first discusses each control technique and then gives experimental results and/or performance to highlights their merits. The resonant converter used as a case study is not specified to just single topology instead it used few topologies such as series-parallel resonant converter (SPRC), LCC resonant converter and parallel resonant converter (PRC). On the other hand, the control techniques presented in this paper are self-sustained phase shift modulation (SSPSM) control, self-oscillating power factor control, magnetic control and the H-∞ robust control technique

Fast Transition from Open Surgery to Endovascular Treatment of Unruptured Anterior Communicating Artery Aneurysmse-A Retrospective Analysis of 128 Patients

OBJECTIVE: Anterior communicating artery aneurysms (ACoAAs) are challenging to treat both surgically and endovascularly. In this study, we evaluate the treatment-related morbidity and clinical outcome of microsurgical clipping and endovascular treatment for a consecutive series of unruptured ACoAAs while the treatment paradigm was in transition from surgical to endovascular first.METHODS: We retrospectively reviewed clinical and radiologic data of adult patients who underwent microsurgical clipping or endovascular treatment of an unruptured ACoAA at a high-volume academic neurovascular center (Helsinki University Hospital) during 2012-2019. During this period, a transition from microsurgical clipping to endovascular treatment took place. Regarding outcome, we focused on treatment-related complications, dischargeto-home rates, functional performance (modified Rankin Scale score), and obliteration rates.RESULTS: Of 128 treated ACoAAs, 81 (64%) were treated surgically and 47 (36%) endovascularly. There was no difference in major complications, intracranial hemorrhagic complications or ischemic complications, discharge-to-home rates, or functional performance between the surgically and endovascularly treated patients. With time, a decrease in major complications was observed in the surgical cases (from 29% to 17%), whereas the major complication rate increased in the endovascularly patients (from 0% to 25%). Cerebral ischemia was the most frequent complication in both groups. The risk for permanent neurologic deficit remained low in both groups (9% for endovascular and 5% for surgery).CONCLUSIONS: We did not find any major differences regarding complications and outcomes after the treatment paradigm shift from clipping to endovascular of unruptured ACoAAs. Prospective studies evaluating durability of treatments are needed to compare overall effectiveness.Peer reviewe

Low-cost and portable automatic sheet cutter

Process automation is crucial to increase productivity, more efficient use of materials, better product quality, improved safety, etc. In small-medium enterprise (SME) businesses related to household retailing, one of the process automation needed is the measurement and cutting of the mat or sheet, made of rubber or polyvinyl chloride (PVC) materials. Most of the household retailers that selling the sheet, the process of measuring and cutting according to the customer’s requirements are manually performed using a measuring tape and scissors. These manual processes can cause inaccuracy in length, inefficient use of material, low productivity and reduce product quality. This paper presents a low cost and portable automatic sheet cutter using the Arduino development board, which is used to control the process of measuring and cutting the materials. The system uses a push-button where the user can set the required length and quantity of the sheet. Once the required information is set, the stepper motor rolls the sheet until the required length is satisfied. Subsequently, another stepper motor moves the cutter horizontally and cut the sheet. With the automatic sheet cutter, the material is cut with acceptable precision. The design of the automatic sheet cutter is low cost and portable which significantly suitable to be used by SME household retailers