bluuebunny/crossref_metadata_2025_split huggingface dataset:
Crosslinking of Polyolefin Foams
Authors: Sims G.L.A. , Sipaut C.S. 
Published: September 2018

This study investigates peroxide crosslinking of two low-density polyethylene grades of similar number average molecular weight but differing molecular weight distribution. At gel contents typically associated with dicumyl peroxide (DCP) crosslinked foams, crosslinking and melt tensile properties of the solid matrix, foaming behaviour and foam properties were not significantly different.The main work compared the effects of crosslinking systems based on DCP alone and DCP with the polyfunctional monomer, triallylcyanurate (TAC). The presence of TAC allowed specific gel contents to be achieved at significantly reduced DCP concentrations compared with DCP alone. It was also determined that cost-effective use of TAC was limited to approximately 0.5 parts per hundred resin.When comparing results of solid and foamed samples of identical gel content, the presence of TAC significantly increases the melt modulus and reduces extensibility of the solid matrix compared with DCP alone and promotes a higher nucleation density in foam. This is considered to be due to a higher crosslink density in the network fraction which introduces complications in prediction of foaming behaviour if gel content alone is considered.
Effect of Compound Formulation and Processing Conditions on Properties of Extruded EPDM and NR/EPDM Foams
Authors: Lewis C. , Rodlum Y. , Misaen B. , Changchum S. , Sims G.L.A. 
Published: September 2018

The effects of compound formulations and processing conditions on the structure and properties of extruded EPDM and EPDM/NR blends of tube foams were investigated. The foam tubes were prepared by mixing a compound in a two roll mill, extruding the compound through a cold feed extruder and finally vulcanizing the extrudate in a circulating hot air oven. In previous results, the EPDM grade, blowing agent type, composition of EPDM blend and processing conditions were found to affect the cell structure and the physical properties of the resultant EPDM foams. An extended work was carried out using blowing agent blends and NR blending with EPDM as a based rubber. The characteristics of blowing agent blends (ADC/DNPT) were studied using a gas evolution apparatus. Decomposition temperature of ADC decreased with both DNPT and OBSH blending which affected the resultant EPDM foams structure and properties.To promote the use of natural rubber, its various compositions were blended with EPDM to produce the foam tubes. Modified formulations were needed to ease the difficulty of mixing and stabilising the resultant foams. Using a tube mold for an extrudate as an alternative technique to vulcanize the NR/EPDM extrudate in the hot air oven was successfully found to control the expansion and foam dimensions. The NR compositions were also found to affect the foam structure and properties.
Advances in Thermal Insulation of Extruded Polystyrene Foams
Authors: Vo Chau V. , Bunge Friedhelm , Duffy John , Hood Lawrence 
Published: September 2018

Since their discovery in the early 40's extruded polystyrene foams (XPS) have been produced with various organic and inorganic blowing agents, and are now widely used as thermal insulators in building and construction. Blowing agent regulations have forced foam suppliers to look for new polymer - blowing agent - additive combinations. These must deliver high performance insulation, but must not compromise on high mechanical strength, foam integrity, and moisture resistance. This paper focuses on the thermal resistance of XPS blown with zero-ODP blowing agent (hydrofluorocarbon HFC-134a) and with carbon dioxide. IR-blockers such as carbon black and graphite reduce the thermal conductivity of CO2 blown XPS between 1 and 3×10-3 W/m.K depending on the concentration of IR-attenuators. Properties of a new XPS product using CO2 with IR blockers are presented. This product is CE certified and fulfills the requirements of the European XPS product standard DIN EN 13164.
Rapid antidepressant effects of deep brain stimulation of the pre-frontal cortex in an animal model of treatment-resistant depression
Authors: Papp Mariusz , Gruca Piotr , Lason Magdalena , Tota-Glowczyk Katarzyna , Niemczyk Monika , Litwa Ewa , Willner Paul 
Published: September 2018

Background: A significant proportion of depressed patients fail to respond to treatment with antidepressant drugs. Such patients might nonetheless respond to deep brain stimulation of the prefrontal cortex. Deep brain stimulation has also been shown to normalize behaviour in the chronic mild stress (CMS) model of depression. However, these studies have involved animals that are in general treatment responsive. Thus, this is not the ideal situation in which to investigate how deep brain stimulation is effective where antidepressant drugs are not. Aims: Here, we studied the behavioural effects of deep brain stimulation in treatment-resistant animals. Methods: Wistar rats were exposed to chronic mild stress and concurrent treatment with saline or one of three antidepressant drugs, imipramine, citalopram and venlafaxine. Individuals were selected from the CMS-exposed drug-treated groups that had failed to increase their sucrose intake by week 5 of drug treatment. All animals were then implanted with deep brain stimulation electrodes in the ventro-medial prefrontal cortex, and tested for sucrose intake and in the elevated plus maze and novel object recognition test, following 2 × 2 h of deep brain stimulation. Results: The selected drug-treated animals were found to be antidepressant-resistant in all three tests. With a single exception (sucrose intake in imipramine-treated animals), deep brain stimulation reversed the anhedonic, anxiogenic and dyscognitive effects of CMS in all four conditions, with no significant differences between saline- and drug-treated animals. Conclusions: These data provide a proof of principle that deep brain stimulation of the prefrontal cortex can be effective in a rat model of resistance to chronic antidepressant treatment, replicating the clinical effect of deep brain stimulation in treatment-resistant depression.
Open Versus Endovascular Repair of Isolated Iliac Artery Aneurysms
Authors: Zhorzel Sven , Busch Albert , Trenner Matthias , Reutersberg Benedikt , Salvermoser Michael , Eckstein Hans-Henning , Zimmermann Alexander 
Published: September 2018

Purpose: Outcomes of open iliac artery repair (OIR) and endovascular iliac artery repair (EVIR) were compared at a tertiary referral vascular center. Methods: From 2004 to 2015, all patients treated for isolated iliac artery aneurysms (IAAs) were retrospectively identified, and patient records and computed tomography (CT) scans were analyzed. The primary end point was overall survival; secondary end points were 30-day mortality and morbidity and freedom from reintervention. For follow-up, data from outpatient visits and CT scans following a standard surveillance protocol were used. Results: A total of 106 IAAs in 94 patients were treated (mean follow-up: 35.7 months; 66 OIR; 40 EVIR). Six (15%) aneurysms from the EVIR group and 4 (6.1%) from open-operated IAA presented in the state of rupture. There was no difference in overall survival between EVIR and OIR ( P = .14). In multivariable analysis, higher risk of death was associated with ruptured IAA (rIAA; hazard ratio [HR]: 40.44, 95% confidence interval [CI]: 2.05-796.18; P = .02) and coronary heart disease (HR: 11.07, 95% CI: 1.94-63.36; P < .01). The 30-day mortality was 1.9% overall (0% OIR, 5.0% EVIR, P = .27), but there were no differences between OIR and EVIR in 30-day morbidity ( P = .11). Freedom from reintervention was higher for OIR than for EVIR ( P < .01). In multivariable analysis, a higher reintervention rate was seen in EVIR (HR: 10.80, 95% CI: 2.20-53.01; P < .01) and in rIAA (HR: 12.02, 95% CI: 1.31-111.11; P = .03). Conclusion: Iliac artery aneurysmss can be safely and effectively treated by EVIR or OIR regarding 30-day morbidity, mortality, and long-term survival, although freedom from reintervention is significantly lower after EVIR.
Stent-assisted coil embolization of anterior communicating artery aneurysms using the LVIS Jr stent
Authors: Santillan Alejandro , Schwarz Justin , Boddu Srikanth , Gobin Y Pierre , Knopman Jared , Patsalides Athos 
Published: September 2018

Background and purpose This retrospective study evaluates the safety and mid-term and long-term effectiveness of stent-assisted coil embolization of anterior communicating artery (Acomm) aneurysms treated with the LVIS Jr stent. Materials and methods All patients treated with the LVIS Jr stent for Acomm aneurysms between June 2015 and March 2018 were included in the analysis. Details of the procedure’s periprocedural adverse events, immediate aneurysm occlusion rates, and clinical and angiographic follow-up assessment were collected. Results A total of 25 patients with 25 aneurysms were included. Eighteen aneurysms were found incidentally. Seven patients presented with seven ruptured aneurysms: Six were remotely ruptured and one acutely ruptured. Twenty-four patients were treated successfully and one technical failure is reported. The parent arteries measured 1.4 mm to 2.9 mm in diameter (mean, 2.3 mm). Intraprocedural thromboembolic complications occurred in two patients (8%) and an intraoperative aneurysm rupture in one patient (4%). Immediate complete aneurysm occlusion was noted in 18 out of 25 patients (72%). Clinical follow-up ranged from three months to 36 months (mean, 15.8 months) and the imaging follow-up ranged from two to 35 months (mean, 14.2 months). Complete aneurysm occlusion was achieved in 14 out of 20 patients (70%) at last angiographic follow-up. Of the two patients with in-stent thrombosis, one patient had an acutely ruptured aneurysm and the other patient was treated with an LVIS Jr stent in a Y configuration. Neurological morbidity and mortality rate were 0%. Conclusions Complex, wide-necked Acomm aneurysms can be effectively treated with stent-assisted embolization using LVIS Jr stents.
Clinical and manometric characteristics of women with paradoxical puborectalis syndrome
Authors: Rangan Vikram , Zakari Mohammed , Hirsch William , Ballou Sarah , Singh Prashant , Sommers Thomas , Iturrino Johanna , Nee Judy , Staller Kyle , Lembo Anthony 
Published: September 2018

BackgroundA subset of patients with functional defecation disorders have predominance of the puborectalis muscle (PRM) on three‐dimensional high definition anorectal manometry (HDARM), known as paradoxical puborectalis syndrome (PPS). The aim of this study was to assess clinical and manometric differences between patients with and without PPS.MethodsA total of 227 women with functional defecation disorders undergoing HDARM between December 2012 and October 2016 at a single center were included in this study. All completed the Rome III constipation module and Pelvic Floor Distress Inventory 20 (PFDI‐20).ResultsEighty‐seven out of 227 women had a 3D pressure topographic profile consistent with PPS. They had higher mean PDFI‐20 scores for straining and incomplete evacuation symptoms than those without PPS. In addition, they demonstrated higher mean resting anal pressure, a more negative mean anorectal pressure differential, and a greater proportion with prolonged balloon expulsion test. These findings were more pronounced in a subgroup of 58 PPS patients with a distinct pattern of both posterior and posterolateral wall indentation.ConclusionAmong female patients with functional defecation disorders, those with PPS demonstrated clinical and manometric differences compared to those without PPS. These differences may be driven by predominant posterolateral wall indentation in a subgroup of PPS patients.
Coercing Women's Behavior: How a Mandatory Viewing Law Changes Patients' Preabortion Ultrasound Viewing Practices
Authors: Kimport Katrina , Johns Nicole E. , Upadhyay Ushma D. 
Published: September 2018

Abstract
Over the past two decades, US states have enacted legislation regulating ultrasound scanning in abortion care, including mandating that abortion patients view their ultrasound image. Legal scholars have argued that, by constructing ultrasound viewing as a necessary part of patients' abortion decision making, these laws aim to control and constrain how women make personal decisions about their bodies and parenthood. To date, however, the discussion of the impact of ultrasound viewing laws on women's decisional autonomy has occurred in the abstract. Here, we examine the effect of Wisconsin's mandatory ultrasound viewing law on the viewing behavior of women seeking care at a high-volume abortion-providing facility. Drawing both on chart data from patients before and after the law went into effect and on in-depth interviews with women subject to the mandatory viewing law, we found that the presence of the law impacted patients' viewing decision making. Moreover, we documented a differential effect of the law by race, with larger impacts on the viewing behavior of black women compared with white women. Our findings call for renewed attention to the coercive power of laws regulating abortion on a macrolevel, investigating not only how they affect individuals' behavior and experience but also which individuals are impacted.
Acute hematological toxicity during post-operative bowel sparing image-guided intensity modulated radiation with concurrent cisplatin
Authors: Lewis Shirley , Chopra Supriya , Naga Pushpa , Pant Siddharth , Dandpani Epili , Bharadwaj Naveen , Mahantshetty Umesh , Engineer Reena , Swamidas Jamema , Ghosh Jaya , Gupta Sudeep , Shrivastava Shyam 
Published: September 2018

Objective
To report acute hematological toxicity (HT) in patients receiving post-operative bowel sparing intensity-modulated radiotherapy (IMRT) and cisplatin and its dosimetric predictors.

Methods
Clinical database of Phase III trial (NCT01279135), that randomized patients to post-operative conformal or intensity modulated radiation therapy, was searched to select patient strata that received bowel sparing IMRT (50 Gy/25#/5 wks) and concurrent cisplatin (40 mg m– 2). Pelvic bone marrow (BM) was retrospectively delineated in two sets: whole bone (WB), and freehand (FH) inner cavity of bone. Dose volume histograms (DVH) of BM were obtained. Receiver operating characteristic (ROC) curve identified DVH thresholds that predicted for Grade≥ II HT with highest specificity. Univariate and multivariate analysis was performed.

Results
Overall 75 patients received concurrent cisplatin. Grades I–V HT was observed in 38.7%, 42.7%, 14.7%, 0%, and 0% patients, respectively. Grade ≥ II leukopenia, neutropenia, anemia, and thrombocytopenia were observed in 26%, 40%, 26.5%, and 1.4% respectively. None of the HT resulted in treatment break. On univariate analysis, whole pelvis+ lumbar FH V30 &gt;55% & V40&gt;35%, whole pelvis WB and FH V40 &gt; 35%, and lower pelvis WB and FH V40 &gt;20% correlated for Grade ≥ II leucopenia and neutropenia. None of the BM dose volume constraints predicted for overall HT or neutropenia on multivariate analysis.

Conclusion
The IMRT arm of NCT01279135 (PARCER study) that employed strict bowel constraints had unintentional but desirable BM sparing. None of the BM subvolume DVH parameters could be validated on multivariate analysis.

Advances in knowledge
The prospective study reports feasibility of bone marrow sparing with bowel sparing post-operative pelvic IMRT and concurrent chemotherapy for cervical cancer. The present study reports low incidence of hematological and gastrointestinal toxicity during post-operative chemoradiation with IMRT. As both whole bone and freehand pelvis BM contours predicted for HT, hence an easier method of whole bone contouring should continue to be used till further validation of more specific BM subvolumes becomes available. The study results highlight the need for further research into dose volume constraints during post-operative IMRT.
“SOU HOMEM! BEBI PARA NÃO ‘PAGAR’ DE BOBÃO: JUVENTUDE, CONSUMO E IDENTIDADE DE GÊNERO.
Authors: Guthierrez Everson Sofiste y , Baião Jonê Carla 
Published: September 2018

Quais os modos de ser garota e garoto na juventude? Que identidades esses jovens têm construídos na ocupação dos diversos espaços do recreio? Como tem sido essa ocupação: negociada, conflituosa ou tácita? Este artigo é parte da pesquisa de mestrado, em andamento, sobre a relação entre juventude, consumo e gênero, com enfoque no cotidiano da escola, sobretudo na observação da ocupação dos espaços do recreio de garotos e garotas com idades entre 13 e 14 anos de idade, da turma do oitavo ano do Ensino Fundamental II, da “Escola da Praia”: uma escola da rede católica de ensino, na Zona Sul do Rio de Janeiro, próximo ao mar. Tomamos o referencial de Bakhtin, no que diz respeito à “dimensão alteritária” e, quanto a autores que discutem identidade, nos fundamentaremos basicamente em dois: Jonê Carlão Baião (2006), por auxiliar na compreensão das identidades como sendo constantemente negociadas, uma vez que são flexíveis e variáveis e; Guacira Lopes Louro (1997), por falar que as identidades estão sempre se construindo. Utilizamos como metodologia a observação com registros de áudio e vídeo de uma câmera e a narrativa descritiva dos dados coletados.
O Facebook mediando práticas docentes
Authors: Nascimento Elvira Lopes , ANDRADE LUCIANE DE CASSIA 
Published: September 2018

Inserida no discurso contemporâneo que salienta a importância do fazer pedagógico que se diz inovador porque mediado pela tecnologia, o objetivo geral desta pesquisa é o de buscar compreender os impactos do uso da rede social Facebook no desenvolvimento de linguagem dos alunos. Considerando que os documentos oficiais para a educação no Paraná trazem, de modo implícito ou explícito, o pressuposto de que as práticas discursivas materializadas em gêneros textuais/discursivos podem ser considerados como um instrumento psicológico que media as ações de linguagem (BRONCKART, 2006), alicerçamos esta investigação pela premissa de cunho didático de que os gêneros de texto devem ser o centro do processo de ensino de produção e compreensão. Nessa perspectiva, buscamos validar o Comentário de Facebook como gênero do discurso capaz de contribuir para o desenvolvimento das capacidades de expressão oral e escrita de alunos do ensino fundamental de uma escola pública. Esta pesquisa se fundamenta nos aportes teóricos e metodológicos oriundos do interacionismo sociodiscursivo, sobretudo nos trabalhos desenvolvidos sobre a questão do ensino-aprendizagem de gêneros textuais (SCHNEUWLY; DOLZ, 2004; 2009). Os resultados indiciam diversos aspectos que fazem das redes sociais, em especial o gênero Comentário do Facebook um instrumento que pode mediar ações formativas que tenham como objetivo o desenvolvimento de capacidades de linguagem.
VINTE ANOS - FILME DE ALICE DE ANDRADE
Authors: Rodrigues Andréa , Pizzinga Vivian Heringer 
Published: September 2018

O texto apresenta uma resenha do documentário Vinte Anos, direção de Alice de Andrade, produzido por Montanha Russa Cinematográfica, duração de 80 minutos. O filme foi recebeu dois prêmios no Festival de Brasília e foi exibido na Mostra Internacional de São Paulo, nos festivais internacionais de Miami, Guadalajara e Havana. A obra mostra a trajetória de vida de três casais cubanos, com intervalo de cerca de duas décadas.
Synthesis and Characterization of Nanocrystalline La0.65Sr0.3 MnO3 and La0.8Sr0.2MnO3 Cathode Powders by Auto-ignition Technique for Solid Oxide Fuel Cells (SOFC)
Authors: Almutairi G. N. , Ghouse M. , Alyousef Y. M. , Alenazey F. S. 
Published: September 2018

Solid Oxide fuel Cells (SOFCs) are considered to be one of the most promising energy conversion devices that have several advantages such as high efficiency, system compactness and low environmental pollution. In the present investigation La0.65Sr0.3MnO3 (LSM-1) and La0.8Sr0.2MnO3 (LSM-2) nanoceramic powders were prepared by citrate-nitrate route of auto-combustion with citrate to nitrate (c/n) ratio 0.50 to see the effect of these cathode powders on the performance of SOFC cells. The as prepared powder were calcined at 900oC for 4hrs using the Thermolyne 47900 furnace to remove carboneous residues and characterized them using SEM / EDS, XRD, TGA techniques and their results are presented . From calculations using Debye Scherrer’s equation, the average crystallite size of the powders were found to be around 16nm. The SEM indicates the particle sizes are within the range of around 200nm.The surface area of the calcined LSM-2 powder was found to be ~21m2/g. The TGA studies indicate the completion of combustion since there was no further weight loss after reaching temperature of ~ 650oC.
Also, Electrochemical characterization of LSM cathode powders were carried out by coating these powders (as cathode functional layer CFL-Bottom and current collector layer CL- Top) using Screen printing on the SOFC half cells (NiO-YSZ+YSZ) procured from CGCRI, Kolkata, India with a cell size of 16mm dia x1.6mm and tested these cells with H2-O2 at 750-800oC with the flow rates of 100-200 sccm. The results of the performances of single cells are presented in this paper. The Current density and powder density values obtained are 0.80A/cm2 (at 0.7V) and 0.55 W/cm2 at 800oC with 200 sccm of hydrogen and oxygen respectively. The area surface resistance (ASR) values obtained were ~0.50 Ωcm2 at 0.7V at 800oC.
Of Lions, Arabs & Israelites: Some Lessons from the Samson Story for Writing the History of Biblical Scholarship
Authors: Kurtz Paul Michael 
Published: September 2018

AbstractThis short essay follows a thread of evidence employed across many languages and lands, genres and generations to defend the historicity of the Samson story. Based upon this line of interpretation it stresses some necessary lessons for scholars writing the history of biblical scholarship. The inquiry extends beyond an interest in modern history to show the relevance of the history of scholarship for present research on ancient history and biblical literature.
Urban Health: Gesundheit und Stadtentwicklung am Beispiel Leipzig
Authors: Leistner Ulrike , Sonntag Astrid , Grande Gesine 
Published: September 2018

Zusammenfassung
Kommunen gelten als Dachsetting der Gesundheitsförderung. Um urbane Lebensqualität erhalten und verbessern zu können, kommt der Berücksichtigung von Gesundheitsaspekten in der Stadtentwicklung ein hoher Stellenwert zu. In integrierten kommunalen Konzepten bleibt das Thema Gesundheit jedoch bisher deutlich unterrepräsentiert. In Leipzig ist es nun gelungen, Gesundheit im neuen Integrierten Stadtentwicklungskonzept Leipzig 2030 als Querschnittsaufgabe zu definieren.