bluuebunny/crossref_metadata_2025_split huggingface dataset:
Magnetic Resonance Imaging for Patellofemoral Chondromalacia: Is There a Role for T2 Mapping?
Authors: van Eck Carola F. , Kingston R. Scott , Crues John V. , Kharrazi F. Daniel 
Published: November 2017

Background: Patellofemoral pain is common, and treatment is guided by the presence and grade of chondromalacia. Purpose: To evaluate and compare the sensitivity and specificity in detecting and grading chondral abnormalities of the patella between proton density fat suppression (PDFS) and T2 mapping magnetic resonance imaging (MRI). Study Design: Cohort study; Level of evidence, 2. Methods: A total of 25 patients who underwent MRI of the knee with both a PDFS sequence and T2 mapping and subsequently underwent arthroscopic knee surgery were included. The cartilage surface of the patella was graded on both MRI sequences by 2 independent, blinded radiologists. Cartilage was then graded during arthroscopic surgery by a sports medicine fellowship–trained orthopaedic surgeon. Reliability, sensitivity, specificity, and accuracy were determined for both MRI methods. The findings during arthroscopic surgery were considered the gold standard. Results: Intraobserver and interobserver agreement for both PDFS (98.5% and 89.4%, respectively) and T2 mapping (99.4% and 91.3%, respectively) MRI were excellent. For T2 mapping, the sensitivity (61%) and specificity (64%) were comparable, whereas for PDFS there was a lower sensitivity (37%) but higher specificity (81%) in identifying cartilage abnormalities. This resulted in a similar accuracy for PDFS (59%) and T2 mapping (62%). Conclusion: Both PDFS and T2 mapping MRI were reliable but only moderately accurate in predicting patellar chondromalacia found during knee arthroscopic surgery.
A clinical audit of thrombophilia testing in pediatric patients with acute thromboembolic events: impact on management
Authors: Gavva Chakri , Sarode Ravindra , Zia Ayesha 
Published: November 2017

Key Points
Thrombophilia testing does not affect clinical management in the acute setting after a TEE in children and should be avoided. Potential harms of thrombophilia testing include unnecessary blood draws in children and an estimated cost of $82 000.
Cognitive functioning among poor elderly persons: evidence from Peru
Authors: Novella Rafael , Olivera Javier 
Published: November 2017

AbstractThe recent emergence and expansion of non-contributory pension programmes across low- and middle-income countries responds and contributes to a larger attention towards the population of elderly individuals in developing countries. These programmes are intended to reduce poverty in old age by providing monetary transfers in mean-tested schemes. However, little is known about the most salient characteristics of this population, particularly health outcomes and their relationship with socioeconomic demographics. The aim of this paper is to provide evidence about this relationship in the specific case of cognitive functioning. We exploit the baseline sample of the Peru’s non-contributory pension programmePension 65and find significant relationships between cognitive functioning and retirement, education, nutrition, ethnicity and sex.JEL Classification:J14, J24
Application of diffusion tensor imaging in quantitatively monitoring chronic constriction injury of rabbit sciatic nerves: correlation with histological and functional changes
Authors: Wu Wenjun , Niu Yanfeng , Kong Xiangquan , Liu Dingxi , Long Xi , Shu Shenglei , Su Xiaoyun , Wang Bing , Liu Xiaoming , Ma Yamei , Wang Lixia 
Published: November 2017

Objective:
To investigate the potential of diffusion tensor imaging (DTI) in quantitatively monitoring chronic constriction injuri (CCI) of sciatic nerves and to analyse the association of DTI parameters with nerve histology and limb function.

Methods:
CCI was created on sciatic nerves in the right hind legs of 20 rabbits with the left as control. DTI parameters—fractional anisotropy (FA), apparent diffusion coefficient (ADC), axial diffusivity (AD) and radial diffusivity (RD)—and limb function were longitudinally evaluated. Pathology analysis was performed on day 3 (d3), week 1 (w1), 2, 4, 6, 8 and 10.

Results:
FA of the constricted nerves decreased on d3 (0.316 ± 0.044) and increased from w1 to w10 (0.331 ± 0.018, 0.354 ± 0.044, 0.375 ± 0.015, 0.394 ± 0.020, 0.42 ± 0.03 and 0.464 ± 0.039). ADC increased on d3 until w2 (1.502 ± 0.126, 1.462 ± 0.058 and 1.473 ± 0.124 × 10−3 mm2 s−1) and decreased to normal from w4 to w10 (1.356 ± 0.129, 1.375 ± 0.107, 1.290 ± 0.064 and 1.298 ± 0.026 × 10−3 mm2 s−1). AD decreased and stayed low from d3 to w10 (2.042 ± 0.160, 2.005 ± 0.095, 2.057 ± 0.124, 1.952 ± 0.213, 1.988 ± 0.180, 1.947 ± 0.106 and 2.097 ± 0.114). RD increased on d3 (1.233 ± 0.152) and declined from w1 to w10 (1.19 ± 0.06, 1.181 ± 0.14, 1.071 ± 0.102, 1.068 ± 0.084, 0.961 ± 0.063 and 0.923 ± 0.058). FA, ADC and RD correlated significantly with limb functional scores (all Ps &lt; 0.0001) and their changes were associated with histological changes.

Conclusion:
FA, ADC and RD are promising to monitor CCI. AD may be a stable indicator for injury. Histological changes, oedema, axon loss and demyelination, and fibrosis, accompanied the changes of these parameters.

Advances in knowledge:
DTI parameters can detect and monitor acute and chronic changes after nerve compression.
Reflexiones sobre el estado de flujo de efectivo e ideas para su presentación por el método directo
Authors: Rondi Gustavo Roberto , Casal María del Carmen , Galante Marcelo Javier , Gómez Melisa 
Published: November 2017

A los fines de efectuar proyecciones y análisis financieros, la información contenida en el estado de flujo de efectivo debe complementarse con el análisis de los saldos de activos y pasivos operativos vinculados, por lo cual cobra relevancia el método seleccionado para confeccionar el estado.Si se utiliza el método directo para la presentación del flujo de efectivo de las actividades operativas, la lectura y comprensión del estado por parte del usuario es sencilla, pero no es suficiente para el análisis de la vinculación entre el resultado y la generación de fondos del periodo, aspecto fundamental para realizar proyecciones financieras. La presentación por el método indirecto, permite exponer dicha vinculación, pero resulta de difícil comprensión.En este trabajo proponemos dos alternativas para presentar el estado por el método directo, que consolidan las ventajas del mismo en su versión tradicional, con las del método indirecto. Las propuestas incluyen la exposición de información en el cuerpo del estado o en nota complementaria, detallando cómo se determinan las distintas clases de entradas y salidas brutas de efectivo que se exponen por el método directo, partiendo de los resultados devengados y considerando los aumentos o disminuciones de activos y pasivos operativos vinculados.El método directo favorece el análisis vertical del estado de flujo de efectivo y el horizontal a lo largo de dos o más periodos. Asimismo, resulta útil la información que puede obtenerse mediante el cálculo de ratios que vinculan los distintos subtotales de este estado y con algunos del estado de resultados.
El Centro de Emprendedores de la Economía Social (cees) de la ciudad de Santa Fe y su viabilidad de convertirse en un centro de referencia para la Economía Social de la región santafesina
Authors: Sotto Orlando Mariano 
Published: November 2017

El presente trabajo tiene por objetivo analizar y profundizar el itinerario y las dinámicas desarrolladas en los últimos tres años en el Centro de Emprendedores de la Economía Social (CEES) de la ciudad de Santa Fe, la cual es una experiencia desplegada en forma conjunta por tres diferentes niveles del sector público: el Gobierno Local, el Provincial y la Universidad.Se apunta a indagar si las acciones y actividades desarrolladas por el conjunto de instituciones públicas colaboraron en la consolidación de las prácticas de Economía Social y Solidaria (ESyS) de la región.La metodología utilizada ha sido principalmente técnicas cualitativasde investigación entre las que se incluyen: análisis y lectura bibliográfica, encuentros de trabajo y participación directa en los talleres formativos realizados.Entre los principales resultados se destacan: diseño, articulación, coordinación y evaluación de políticas públicas entre distintos organismos del Estado, fortalecimiento institucional y comercial de emprendedores (en mayor medida) y asociados de cooperativas de trabajo (en menor medida), mayor visibilidad institucional de las prácticas de ESyS y creación de un espacio de referencia para la ESyS en la región. Con respecto a las conclusiones más relevantes, el CEES se está convirtiendo en una referencia para los emprendedores y cooperativas de trabajo locales, a través de acciones de capacitación, asesoramiento y seguimiento en diferentes temáticas, financiamiento y acceso a diferentes canales de comercialización. Con esos servicios, se busca apoyar la conformación de grupos asociativos y cooperativos con la intención de institucionalizar organizaciones de emprendedores; y generar instancias propicias para el intercambio de experiencias. Asimismo se está gestando un espacio de gestión asociada entre el sector público y las experiencias de Economía Social de la ciudad, a partir de la planificación participativa.
Determination of homopolymerization kinetics and copolymerization with methyl methacrylate of diethyl 9-(methacryloyloxy)-2-oxo-nonylphosphonate, 9-(methacryloyloxy)-2-oxo-nonylphosphonic acid and diethyl 9-(methacryloyloxy)-nonylphosphonate
Authors: Chmela Štefan , Fiedlerová Agnesa , Liptaj Tibor , Catel Yohann , Moszner Norbert 
Published: November 2017

AbstractThe three polymerizable monomers diethyl 9-(methacryloyloxy)-2-oxo-nonylphosphonate M1, 9-(methacryloyloxy)-2-oxo-nonylphosphonic acid M2 and diethyl 9-(methacryloyloxy)-nonylphosphonate M3 are examined for their free radical polymerization and copolymerization activity in methanol between 40 and 65°C. Polymerization proceeds readily through a thermal free radical initiation. The intensity exponents for the monomer and initiator are only slightly over 1 and approximately 0.5, respectively. This is in accordance with the results typically observed for an ideal free radical polymerization with bimolecular termination. The kinetics of copolymerization with methyl methacrylate (MMA) are monitored by online 1H nuclear magnetic resonance (NMR) spectroscopy. Two copolymerization reactions for each pair of co-monomers are sufficient to evaluate the kinetic data using the Jaacks method, the Fineman-Ross method and the nonlinear least squares method. All three methods give similar results for particular monomer/MMA couples.
Wideband Inverted-L Microstrip-via-Fed Circularly Polarized Antenna with Asymmetrical Ground for WLAN/Wimax Applications
Authors: Chen Qiang , Zhang Hou , Yang Lu-chun , Li Bin-bin , Min Xue-liang 
Published: November 2017

Abstract
A design with wideband and circularly polarized radiation antenna from an open-slot antenna has been demonstrated in this paper. The proposed antenna, which consists of an open slot and an inverted-L strip feeding, provides a large bandwidth, which completely cover the Wimax (3.3–3.8 GHz) and WLAN (2.4–2.48 GHz) bands. The open slot is formed by an modified ground plane with a slit cut and monofilar spiral stubs employed, which fed by an asymmetrical inverted-L strip feedline using a via. As demonstrated, the CP operation was significantly improved by loading monofilar spiral stubs connected to the asymmetric feedline by means of a via. A parametric study of the key parameters is made and the mechanism for circular polarization is described. After optimization, the impedance bandwidth is approximately 3.78 GHz (2.12 to 5.9 GHz) and the 3 dB axial ratio bandwidth is approximately 2.75 GHz (2.2 to 4.95 GHz), which represent fractional bandwidths of approximately 94.3 % and 76.9 %, respectively.
Schreiben in Konstellationen
Authors: Sproll Monika 
Published: November 2017

AbstractIn this contribution, the travel diaries and notebooks in which Adelbert von Chamisso documented his three-year journey round the world are examined together as a stand-alone travel book. Throughout his travels, Chamisso developed and modified the method and organization of his writing process. The combination of aestheticizing depictions of nature and documentary natural research is preserved in the assemblage of his travel writing but is operationalized through various text forms and ways of recording.
Influence of long-term oral application of quinolones on the ECG curve in dogs
Authors: Cepiel A. , Noszczyk-Nowak A. , Cekiera A. , Popiel J. , Pasławska U. 
Published: November 2017

AbstractThe aim of the study was to analyse the influence of enrofloxacin and pradofloxacin administered orally for 14 days on the ECG in dogs. The ECG was performed before and after a 14 day period of quinolone administration. There was an increase in the QTc and the TpTe interval in the group treated with quinolones. QTc was prolonged by 24 ms (p=0.001). The TpTe interval was shortened, on average, by 6.55 ms (p=0.048). In the group treated with enrofloxacin, QTc was prolonged by 16.27 ms (p=0.006) and the TpTe interval was shortened by 9.64 ms (p=0.050), the TpTe/QT index was reduced by 0.034 (p=0.050) on average. In dogs treated with pradofloxacin, QTc was prolonged by 21.55 ms (p=0.012) on average. The results suggest that a prolonged administration of quinolones can increase the risk of arrhythmias. Furthermore, different generations of these drugs increase this risk to various degrees. The study proved that second generation quinolones, such as enrofloxacin, significantly change the phase of depolarization and repolarization of the ventricles, at the same time increasing the risk of ventricular arrythmia. Pradofloxacin does not change the TpTe and TpTe/QT values, so it is safer in use.
Application of loop-mediated isothermal amplification (LAMP) assays for the detection of bovine herpesvirus 1
Authors: Socha W. , Rola J. , Urban-Chmiel R. , Żmudziński J.F. 
Published: November 2017

Abstract
Bovine herpesvirus-1 (BoHV-1), a causative agent of Infectious Bovine Rhinotracheitis (IBR), is responsible for high economic losses in cattle farming industry. The use of testing methods that allow early detection of BoHV-1-infected animals is a key element of each program of IBR eradication. The aim of the study was to design and evaluate two variants of LAMP isothermal tests with SYBR Green fluorescence probes, specific to the genes encoding gD and gE glycoproteins of BoHV-1. LAMP gE BoHV-1 assay was able to distinguish between gE- and gE+ strains of the virus. Both LAMP gD and gE assays were specific to BoHV-1 and did not react with other related to BoHV-1 alphaherpesviruses. Sensitivity of LAMP gD was 2x104 copies of the viral genome whereas for LAMP gE it was 2x105. Diagnostic sensitivity calculated for LAMP gD was 64.7% whereas for LAMP gE it was 80%. Diagnostic specificity for LAMP gD and LAMP gE was 78.9% and 89.3%, respectively. LAMP assay can be a rapid and simple method of diagnosis of acute BoHV-1 infections and discrimination of gE- strains. However, relatively low diagnostic sensitivity of the method can limit its use in routine diagnostics.
Durchführbarkeitsstudie zur
Inline-Überwachung der Wärmeleitfähigkeit
und der strukturellen Qualität von Kunststoffen im
Heißextrusionsprozess mittels
Infrarot-Thermographie
Authors: Meinlschmidt Peter , Aderhold Jochen , Schlüter Friedrich 
Published: November 2017

Zusammenfassung
In der vorliegenden Arbeit wird über erste Ergebnisse eines
Forschungsprojektes zur prozessintegrierten Messung der
Wärmeleitfähigkeit von heißextrudierten Dämmstoffen
und zur Erkennung möglicher struktureller Fehler mittels eines
Wärmebildverfahrens berichtet. In Modellversuchen werden
Laserimpulse und Kühlfinger benutzt, um auf einem Förderband
transportierte Blöcke von Dämmstoffen positiv oder negativ
thermisch anzuregen. Mittels einfacher, aber robuster Algorithmen ist
es möglich, die Anregungsstellen automatisch zu erkennen und zu
verfolgen und die Entwicklung ihrer infraroten
Strahlungsintensitäten als Funktion der Zeit zu messen. Diese ist
ein Maß für die relativ komplexe Zeitabhängigkeit der
Oberflächentemperatur an den Anregungsstellen. Nach einer
wahrscheinlich durch die Semitransparenz des Materials bedingten
Anlaufphase folgt sie jedoch wenigstens für eine Zeit lang einer
gut verstandenen Proportionalität zu t
−0.5, aus der
sich die Wärmeleitfähigkeit bestimmen lässt. Damit sind
die Grundvoraussetzungen für eine Inline-Messung der
Wärmeleitfähigkeit mit diesem Verfahren gegeben.
Nano-colloidal silica-tethered polyhedral oligomeric silsesquioxanes with eight branches of 3-aminopropyltriethoxysilane as high-performance catalyst for the preparation of bis-thiazolidinones under ultrasonic conditions
Authors: Safaei-Ghomi Javad , Nazemzadeh Seyed Hadi , Shahbazi-Alavi Hossein 
Published: November 2017

Abstract
We report a class of organic–inorganic hybrid material based on nano-colloidal silica-tethered polyhedral oligomeric silsesquioxanes with eight branches of 3-aminopropyltriethoxysilane [nano-colloidal silica@APTPOSS (a series of polyhedral oligomeric silsesquioxanes with eight branches of 3-aminopropyltriethoxysilane)]. It was characterized by 1H NMR spectroscopy, dynamic light scattering, scanning electron microscope, energy dispersive spectroscopy and thermogravimetric analysis. An easy and rapid method for the synthesis of bis-thiazolidinones has been presented by one-pot pseudo-five-component reaction of benzaldehydes, ethylenediamine and 2-mercaptoacetic acid using nano-colloidal silica@APTPOSS. The reusability of the catalyst and little catalyst loading, excellent yields, short reaction times, using the sonochemical procedure as a green process and an alternative energy source are some benefits of this method.
The Efficient Removal of Heavy Metal Ions from Industry Effluents Using Waste Biomass as Low-Cost Adsorbent: Thermodynamic and Kinetic Models
Authors: Indhumathi Ponnuswamy , Sathiyaraj Subbaiyan , Koelmel Jeremy P. , Shoba Srinivasan U. , Jayabalakrishnan Chinnasamy , Saravanabhavan Munusamy 
Published: November 2017

Abstract
The ability of green micro algae Chlorella vulgaris for biosorption of Cu(II) ions from an aqueous solution was studied. The biosorption process was affected by the solution pH, contact time, temperature and initial Cu(II) concentration. Experimental data were analyzed in terms of pseudo-first order, pseudo-second order and intra particle diffusion models. Results showed that the sorption process of Cu(II) ions followed pseudo-second order kinetics. The sorption data of Cu(II) ions are fitted to Langmuir, Freundlich, and Redlich–Peterson isotherms, and the Temkin isotherm. The thermodynamic study shows the Cu(II) biosorption was exothermic in nature. The Cu(II) ions were recovered effectively from Chlorella vulgaris biomass using 0.1 M H2SO4 with up to 90.3% recovery, allowing for recycling of the Cu. Green algae from freshwater bodies showed significant potential for Cu(II) removal and recovery from industrial wastewater.
A personagem na obra de Ian McEwan: entre a culpa e o desejo de reparação
Authors: Zanatta Deisi Luzia , Souza Renata Junqueira de 
Published: November 2017

Este artigo tem como objetivo analisar a trajetória da protagonista Briony Tallis e como se dá sua ação no romance Reparação (2002), de Ian McEwan. Na obra, a personagem principal influenciada por sua mente fantasiosa e uma leitura mal interpretada, vive um drama e tenta reparar um erro cometido no passado. Para tal, o viés teórico adotado conta com os pressupostos de Krause (2010) sobre a metaficção; Rosenfeld (1969, 1976), Candido (1976), Forster (2005), Reis (2001), Miguel (2016) acerca da personagem de ficção, Reis & Lopes (1988) e Friedman (2002) sobre o foco narrativo e a voz do narrador. O trabalho evidenciou que Ian McEwan mostra, através da protagonista, a arte da literatura ao possibilitar uma possível identificação dos seres humanos com as personagens ficcionais.
Quaderna, personagem-mosaico d’ A pedra do reino e a construção de memória sincrônica no romance
Authors: Cazumbá Renailda Ferreira , Da Silva Edvania Gomes 
Published: November 2017

O romance d’ A Pedra do Reino, escrito por Ariano Suassuna, possui uma composição narrativa complexa e multifacetada que provoca reflexões acerca das da produção literária brasileira da década de 1970, época em que foi publicado. Dessa forma, este artigo possui a intenção de analisar a personagem Quaderna, um dos componentes-chave desse romance, com base na ideia de este se constitui em uma personagem-mosaico, a partir da qual o romance de Suassuna agrega várias visões de Brasil e constrói memória sobre o aspecto histórico e político do país a partir de 1930. Quaderna, por sua postura crítica e autoconsciente, de intrusão na trama e, ainda, o narrador que é responsável pela autoconstrução, participa do vasto painel das personagens complexas da literatura brasileira.
A personagem de autoficção: anotações de uma hipótese para textos futuros
Authors: Prelorentzou Renato 
Published: November 2017

Este artigo tem o estranho intento de reunir algumas ideias iniciais para futuras abordagens sobre o fenômeno da autoficção. Sem desconsiderar o longo e polêmico debate em torno do termo, procura analisá-lo a partir da leitura do clássico A personagem de ficção e da ideia de insuficiência do conceito de fiction tal como proposto por Catherine Gallagher (2009). A maior tentativa é sugerir que o pacto ficcional forte e inequívoco que o romance firmou talvez seja uma exceção na história da literatura e que o pacto ambíguo que a autoficção agora propõe talvez seja uma espécie de reedição da instabilidade ontológica que foi suprimida pelo romance tradicional.
A personagem teatral e o pícaro espanhol em Dois perdidos numa noite suja, de Plínio Marcos
Authors: Rodrigues Sergio Manoel 
Published: November 2017

Este artigo tem como objetivo apresentar as personagens Tonho e Paco da peça Dois perdidos numa noite suja (1966), do dramaturgo Plínio Marcos, estabelecendo uma comparação das mesmas com a figura do pícaro espanhol, cujos caracteres muito se aproximam aos dos seres plinianos. Desse modo, propõe-se, inicialmente, a abordagem das principais características da personagem teatral, a fim de se verificar os elementos que constituem o ser fictício na dramaturgia e, assim, analisar os perfis e as relações existentes entre as personagens da peça em questão. Evidenciando, portanto, a marginalidade social e suas consequências (agressões, roubo, assassinato) como as principais temáticas exploradas por Plínio e pela picaresca espanhola.