bluuebunny/crossref_metadata_2025_split huggingface dataset:
Molecular modelling and spectral investigation of some triphenyltetrazolium chloride derivatives
Authors: Creanga Dorina , Nadejde Claudia 
Published: July 2013

AbstractThe molecular parameters of 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) and some compounds based on triphenylformazans (TPFs) — resulting from the enzymatic transformation of TTC, were subjected to comparative investigation on the basis of semi-empirical quantum-chemical simulations, revealing some changes in dipole moment and polarisability in the TPFs in comparison with TTC. Chemical shift due to substituents was discussed using electronic absorption bands in the UV-VIS range recorded for diluted solutions in various solvents as well as the absorption spectra recorded in the infrared range for KBr dispersions. The correlation of the spectral shift of the electronic absorption bands with a specific function on the solvent refractive index, as recommended by theoretical studies focused on solute-solvent interactions, revealed the major role played by dispersive and induction forces. For several solvents, a different behaviour could be assigned to specific interactions overlapping with universal solute-solvent interactions.
Analysis of a Square Parasitic Antenna by Using Lumped Elements
Authors: Ferchichi Abdelhak , Azizi Med Karim , Ali Gharsallah 
Published: July 2013

Abstract
In This paper, a novel approach to design a parasitic antenna for an RFID application. This approach is based on using a parasite square patch near to a square patch. The square antenna is simulated by using HFSS and ADS and the proposed parasitic antenna is developed by using Lumped elements. This antenna can be integrated in an RFID TAG by using the electrical model of both antenna and IC. The size of antenna is 31mm*31mm*8.5mm.
Synthetic Aperture Radar using Emitters of Opportunity
Authors: Serafin Piotr , Kawalec Adam , Leśnik Czesław , Pyć Michał , Pietrasiński Jerzy 
Published: July 2013

Abstract
The capability of a radar imaging system to stay undetected while gathering data is one of the most desired for military reconnaissance systems. This is particularly difficult to achieve for synthetic aperture radar (SAR), that have to emit electromagnetic energy all the time during the operation and to move along a strictly defined route. Therefore the idea of a passive imaging system although encountering many constraints seems to be very interesting.
The possibilities of a passive synthetic aperture radar system working with different types of emitters of opportunity are described in the paper. Impact of signal characteristics on image quality and geometry issues are discussed among others. Results of computer simulations of such a system implementing different imaging algorithms as well as the results of the experiment performed with passive SAR system model are presented.
Overlay Multicast Optimization: IBM ILOG CPLEX
Authors: Kucharzak Michał , Zydek Dawid , Poźniak-Koszałka Iwona 
Published: July 2013

Abstract
IBM ILOG CPLEX Optimization Studio delivers advanced and complex optimization libraries that solve linear programming (LP) and related problems, e.g., mixed integer. Moreover, the optimization tool provides users with its Academic Research Edition, which is available for teaching and noncommercial research at no-charge. This paper describes the usage of CPLEX C++ API for solving linear problems and, as an exhaustive example, optimization of network flows in overlay multicast is taken into account. Applying continuous and integral variables and implementing various constraints, including equations and inequalities, as well as setting some global parameters of the solver are presented and widely explained.
Automated Characterization of Atheromatous Plaque in Intravascular Ultrasound Images Using Neuro Fuzzy Classifier
Authors: Selvathi D. , Emimal N. , Selvaraj Henry 
Published: July 2013

Abstract
The medical imaging field has grown significantly in recent years and demands high accuracy since it deals with human life. The idea is to reduce human error as much as possible by assisting physicians and radiologists with some automatic techniques. The use of artificial intelligent techniques has shown great potential in this field. Hence, in this paper the neuro fuzzy classifier is applied for the automated characterization of atheromatous plaque to identify the fibrotic, lipidic and calcified tissues in Intravascular Ultrasound images (IVUS) which is designed using sixteen inputs, corresponds to sixteen pixels of instantaneous scanning matrix, one output that tells whether the pixel under consideration is Fibrotic, Lipidic, Calcified or Normal pixel. The classification performance was evaluated in terms of sensitivity, specificity and accuracy and the results confirmed that the proposed system has potential in detecting the respective plaque with the average accuracy of 98.9%.
The Implementation of 3TZ Model of Software Development
Authors: Chaczko Zenon , Aslanzadeh Shahrzad , Jiang Frank , Klempous Ryszard 
Published: July 2013

Abstract
This paper presents the concepts and explores issues related to the 3 Time Zones (3TZ) model of software development in global workspace environment. The 3TZ model itself seeks to take advantages of differences in time zones between places around the world. By engaging software development teams in different regions separated by 8 hours each, it is possible for their combined working hours to cover the whole 24 hours period. Thus, while they each work their normal 8 hour days, together they are able to achieve in 1 day what a single team would achieve in 3 days. They are able to achieve this by passing on their work from one team to the next as one finishes their workday and the next team starts their workday. The 3TZ model of software development revolves around the employment of a software development team distributed in at least 3 different locations around the world in 3 different time zones. If work was passed on from one team to the next and adjacent teams were separated by 8 hours, then 24 hours continuous collaborative software development could be achieved. Though this poses many challenges, when dealt with there is great potential for software to be developed much faster than is possible for a single, collocated development team. In the global economy, we have seen a decrease in the barriers towards communication across the globe along with an increase of service availability to support this communication. Software development is one of the disciplines that is capable of effectively utilizing and benefiting from global collaboration prospect lent by ever increasing capability of information and communication technology. 24 hours continuous development is ideal for application towards tasks that have hard deadlines or require work completed as soon as possible. This article will mainly focus on introducing 24/7 global models that can be applied in cloud environment used in three different time zones.
Use of short fibers as a filler in rubber compounds
Authors: Meissner Natalia , Rzymski Władysław M. 
Published: July 2013

Abstract

In this work, composites made from styrene-butadiene rubber and short fibers were prepared by mixing and
investigated. The influence on the vulcanization process and tensile strength properties has been studied and
compared with compounds filled with carbon black. The presence of fibers gave shorter curing time and led to a
slight increase in tensile strength but decreased the elongation at break of the compound.
Evidence-based management of central cord syndrome
Authors: Dahdaleh Nader S. , Lawton Cort D. , El Ahmadieh Tarek Y. , Nixon Alexander T. , El Tecle Najib E. , Oh Sanders , Fessler Richard G. , Smith Zachary A. 
Published: July 2013

Object
Evidence-based medicine is used to examine the current treatment options, timing of surgical intervention, and prognostic factors in the management of patients with traumatic central cord syndrome (TCCS).

Methods
A computerized literature search of the National Library of Medicine database, Cochrane database, and Google Scholar was performed for published material between January 1966 and February 2013 using key words and Medical Subject Headings. Abstracts were reviewed and selected, with the articles segregated into 3 main categories: surgical versus conservative management, timing of surgery, and prognostic factors. Evidentiary tables were then assembled, summarizing data and quality of evidence (Classes I–III) for papers included in this review.

Results
The authors compiled 3 evidentiary tables summarizing 16 studies, all of which were retrospective in design. Regarding surgical intervention versus conservative management, there was Class III evidence to support the superiority of surgery for patients presenting with TCCS. In regards to timing of surgery, most Class III evidence demonstrated no difference in early versus late surgical management. Most Class III studies agreed that older age, especially age greater than 60–70 years, correlated with worse outcomes.

Conclusions
No Class I or Class II evidence was available to determine the efficacy of surgery, timing of surgical intervention, or prognostic factors in patients managed for TCCS. Hence, there is a need to perform well-controlled prospective studies and randomized controlled clinical trials to further investigate the optimal management (surgical vs conservative) and timing of surgical intervention in patients suffering from TCCS.
Intraoperative neuromonitoring with MEPs and prediction of postoperative neurological deficits in patients undergoing surgery for cervical and cervicothoracic myelopathy
Authors: Clark Aaron J. , Ziewacz John E. , Safaee Michael , Lau Darryl , Lyon Russ , Chou Dean , Weinstein Philip R. , Ames Christopher P. , Clark John P. , Mummaneni Praveen V. 
Published: July 2013

Object
The use of intraoperative neurophysiological monitoring (IONM) in surgical decompression surgery for myelopathy may assist the surgeon in taking corrective measures to reduce or prevent permanent neurological deficits. We evaluated the efficacy of IONM in cervical and cervicothoracic spondylotic myelopathy (CSM) cases.

Methods
The authors retrospectively reviewed 140 cases involving patients who underwent surgery for CSM utilizing IONM during 2011 at the University of California, San Francisco. Data on preoperative clinical variables, intraoperative changes in transcranial motor evoked potentials (MEPs), and postoperative new neurological deficits were collected. Associations between categorical variables were analyzed with the Fisher exact test.

Results
Of the 140 patients, 16 (11%) had significant intraoperative decreases in MEPs. In 8 of these cases, the MEP signal did not return to baseline values by the end of the operation. There were 8 (6%) postoperative deficits, of which 6 were C-5 palsies and 2 were paraparesis. Six of the patients with postoperative deficits had demonstrated persistent MEP signal change on IONM. There was a significant association between persistent MEP changes and postoperative deficits (p < 0.001). The sensitivity of intraoperative MEP monitoring was 75%, the specificity 98%, the positive predictive value 75%, and the negative predictive value 98%. Due to higher rates of false negatives, the sensitivity decreased to 60% in the subgroup of patients with vascular disease comorbidity. The sensitivity increased to 100% in elderly patients and in patients with preoperative motor deficits. The sensitivity and positive predictive value of deltoid and biceps MEP changes in predicting C-5 palsy were 67% and 67%, respectively.

Conclusions
The authors found a correlation between decreased intraoperative MEPs and postoperative new neurological deficits in patients with CSM. Sensitivity varies based on patient comorbidities, age, and preoperative neurological function. Monitoring of MEPs is a useful adjunct for CSM cases, and the authors have developed a checklist to standardize their responses to intraoperative MEP changes.
Recent developments in esophageal adenocarcinoma
Authors: Lagergren Jesper , Lagergren Pernilla 
Published: July 2013

AbstractAnswer questions and earn CME/CNEEsophageal adenocarcinoma (EAC) is characterized by 6 striking features: increasing incidence, male predominance, lack of preventive measures, opportunities for early detection, demanding surgical therapy and care, and poor prognosis. Reasons for its rapidly increasing incidence include the rising prevalence of gastroesophageal reflux and obesity, combined with the decreasing prevalence of Helicobacter pylori infection. The strong male predominance remains unexplained, but hormonal influence might play an important role. Future prevention might include the treatment of reflux or obesity or chemoprevention with nonsteroidal antiinflammatory drugs or statins, but no evidence‐based preventive measures are currently available. Likely future developments include endoscopic screening of better defined high‐risk groups for EAC. Individuals with Barrett esophagus might benefit from surveillance, at least those with dysplasia, but screening and surveillance strategies need careful evaluation to be feasible and cost‐effective. The surgery for EAC is more extensive than virtually any other standard procedure, and postoperative survival, health‐related quality of life, and nutrition need to be improved (eg, by improved treatment, better decision‐making, and more individually tailored follow‐up). Promising clinical developments include increased survival after preoperative chemoradiotherapy, the potentially reduced impact on health‐related quality of life after minimally invasive surgery, and the new endoscopic therapies for dysplastic Barrett esophagus or early EAC. The overall survival rates are improving slightly, but poor prognosis remains a challenge. CA Cancer J Clin 2013;63:232–248. ©2013 American Cancer Society.
Essai de restitution d'une maison patricienne des XIIIe et XIVe siècles à Bourges
Authors: Chazelle Annie , Goldman Philippe 
Published: July 2013

Des travaux de restauration entrepris récemment sur une maison en pierre située au cœur de Bourges, à l'angle des rues Edouard-Branly et Michel-Servet, ont mis au jour des vestiges architecturaux révélant 1'existence d'une demeure antérieure à celle communément datée de la fin du XVe siècle. Un autre édifice civil situé à proximité, l'hôtel Colladon, présente de fortes analogies avec la demeure étudiée et conforte les hypothèses de restitution proposée pour cette dernière.
Il s'agit dans les deux cas de maisons patriciennes en pierre, construites dans la seconde moitié du XIIIe siècle, voire au début XIVe siècle ; elles sont à pignon sur rue et s'élèvent sur deux niveaux, facilement identifiables : un cellier excavé voûté d'ogives et une grande salle, probablement sous charpente, attestée par de grandes baies formant claire voie à l'étage, seul témoignage d'un niveau résidentiel dont on ignore encore la distribution.
Il existe encore dans la ville de nombreux vestiges d'édifices civils de cette époque, leurs recensement et étude enrichiraient la connaissance de cet habitat berruyer dont les élévations de l'hôtel Colladon et de la maison de Blet révèlent la richesse et l'intérêt.
Quelques documents d'archives confirment la présence à Bourges de vastes demeures en pierre de ce type aux XII et XIII siècles et peuvent être confrontés aux vestiges conservés pour amorcer une recherche inédite dans la capitale du Berry.
La sculpture du XVe siècle provenant de l'église du couvent des (Cannes à Nantes)
Authors: Guillouët Jean-Marie 
Published: July 2013

A fifteenth-century sculpture front the Carmelite couvent at Nantes, by Jean-Marie Guillouët
The Thomas Dobrée Museum at Nantes has a group of sculptures that were formerly part of the interior decoration of the church of the local Carmelite convent. The statues belong to two decorative campaigns, one around 1420, the other around 1460. They provide knowledge ot the ateliers in Nantes at the end of the Middle Ages and indicate how, under the impetus of ducal patronage, the city became an important artistic centre around the middle of the century, attracting the most talented artisans in the realm.
Le décor baroque des Dominicains de Guebwiller et sa restauration en 1711
Authors: Ponsot Patrick 
Published: July 2013

The baroque decoration of the Dominican church at Guebwiller and its restoration in 1711, by Patrick Ponsot
The church of the convent oft he Dominicans at Guebwiller (Haut-Rhin) is one of those buildings where the "potential" decoration is the object of an impassioned quest. The partial nineteenth-century cleaning of the lower parts dreamed of creating a Rhenish Sixtine Chapel of the fourteenth-century, as it was hoped that more than 1500 square metres of painting would appear. A resumption of work showed that the stratigraphy was not as simple as the neophytes had imagined. A fine baroque decoration was found between the outer level and the expected medieval masterpieces. The continuation of work on the inside of the western facade (2003-2004) showed that the situation was even more complicated than the first soundings had led to believe, as a 'restoration' of the baroque decoration had occurred in the early eighteenth century. The questions raised by this restoration, from both the technical and theoretical points of view (what do we discover ? what do we insist on preserving and presenting ?), are the subject of this article.
L'exhaussement du phare de Cordouan. Un chantier des Lumières (1786-1789)
Authors: Castañer Muñoz Esteban 
Published: July 2013

Die Erhöhung des Leuchtturmes von Cordouan. Eine Baustelle der Aufklärung (1786-1789), von Esteban Castaner Muñoz
Der Leuchtturm von Cordouan, ein manieristisches Denkmal, das zu Ehren der Legitimität der von Konig Heinrich IV. wiedereingesetzten Monarchie errichtet wurde, wurde von 1584 bis 1611 von Louis de Foix erbaut. Im Jahre 1786 zwang der Verfall der oberen Teile des Turmes die Veranrwortlichen bei der Marine, Maßnahmen zur Restaurierung und sodann zur Erhohung einzuleiten, um die Beleuchtungsbedingungen zu verbessern. Der erhöhte Turm ist das Ergebnis einer Reihe von Planen, die vom Marineingenieur Joseph Teulère und dem Architekten Jean Baptiste Jallier de Savault entworfen wurden. Das Vorgehen des Ingénieurs lässt sich als proto-historistisch bezeichnen, er blieb in seinen verschiedenen Entwürfen der stilistischen Sprache des alten Leuchtturmes treu. Jallier hingegen ubernahm den charakteristischen, nüchternen Stil der Zweckarchitektur seiner Zeit. Der neue Leuchtturm - in seiner doppelten Rolle als Meeresdenkmal und Erinnerungsort fur Heinrich IV. - wurde so zu einem, wenn auch späten, emblematischen Element der Machtsymbolik Ludwigs XVI. 1789, bei Beendigung der Bauarbeiten, begrüßte Teulère, der Bauleiter, mit Enthusiasmus die neuen Werte der Französischen Revolution.
The Effectiveness of Counter‐Terrorism Strategies
Authors: Lum Cynthia , Kennedy Leslie W. , Sherley Alison J. 
Published: July 2013

The objective of this Campbell systematic review is to determine the effectiveness of counter‐terrorism strategies from the available social scientific research literature using systematic review methods.From over 20,000 studies we located on terrorism, we found only seven which contained moderately rigorous evaluations of counterterrorism programs. We conclude that there is little scientific knowledge about the effectiveness of most counter‐terrorism interventions. Further, from the evidence we were able to locate, it appears that some evaluated interventions either didn't work or sometimes increased the likelihood of terrorism and terrorism‐related harm.The findings of this review dramatically emphasize the need for government leaders, policy makers, researchers, and funding agencies to include and insist on evaluations of the effectiveness of these programs in their agendas. These agendas would include identifying ways to overcome methodological and data challenges often associated with terrorism research, increasing funding to evaluate existing programs through methodologically rigorous evaluation designs, and paying attention to existing evaluations of programs when implementing them. Further, programs should be assessed to establish if they cause more harm than good or if they create unanticipated consequences.
Approaches to Parent Involvement for Improving the Academic Performance of Elementary School Age Children
Authors: Nye Chad , Turner Herb , Schwartz Jamie 
Published: July 2013

This Campbell systematic review's objective is to summarize the most dependable evidence on the effect of parental involvement intervention programs for improving the academic performance of elementary school age children. The most dependable evidence is defined as studies that include at least two groups and use random assignment to form a fair comparison between groups.19 Randomised Controlled Trials met the inclusion criteria for the systematic review. The overall findings were that parent involvement has a positive and significant effect on children's overall academic performance. It is also clear that the effect is large enough to have practical implications for parents, practitioners, and policymakers (d= 0.45).The overall effect suggested that when parents participated in academic enrichment activities with their children outside of school, the benefits were manifest in improved academic performance in school. This result was striking when one considers that the median length of parent involvement was only 11 weeks. This review has uncovered compelling support for the use of a parent involvement program as a viable supplementary intervention to improve children's academic performance in school, and for the parent involvement component of the No Child Left Behind mandate.
Peripherally Inserted Central Venous Catheters in Critically Ill Premature Neonates
Authors: Ozkiraz Servet , Gokmen Zeynel , Ince Deniz Anuk , Akcan Abdullah Baris , Kilicdag Hasan , Ozel Deniz , Ecevit Ayse 
Published: July 2013

Purpose To evaluate the safety of peripherally inserted central venous catheters (PICCs) and their complications in critically ill premature neonates. Methods A retrospective collection of data of infants with very low birth weight (VLBW) who underwent PICC placement over a 2-year period. Gestational age, birth weight (BW), sex, site of catheter placement, reason for catheter removal, duration of the catheter use, proven sepsis, type of the reported organism and the rate of complications were collected. The infants were classified into two groups according to BWs: Group 1–-VLBW infants (BW between 1,000 and 1,500 g) and Group 2–-BW <1,000 g (extremely low birth weight, ELBW group). Results During the study period, 90 VLBW infants were admitted to the neonatal intensive care unit. PICCs were attempted in 71 patients. A PICC was successfully inserted into 62 patients (87.3%). Totally, 68 PICCs were inserted into 62 infants. PICCs placed in either the upper or the lower extremity have no differences in complication rates. The median time of catheter insertion was 10 (1-22) days for Group 1 and 16 (1-47) days for Group 2 (p=0.001). The median duration of PICCs was 9 (2-18) and 12.0 (3-30) days, respectively (p=0.012). There were no significant differences between groups for the reasons for removal (p=0.859). Conclusions PICCs are convenient for the administration of long course antibiotics and parenteral nutrition for both VLBW and ELBW infants. The risk of catheter complications did not increase in ELBW infants. Although the technique of insertion is easy and using PICCs has many benefits, serious and fatal complications may occur in premature neonates in critical states.