bluuebunny/crossref_metadata_2025_split huggingface dataset:
Anliegensklärung in der Schreibberatung internationaler Studierender
Authors: Burow Nadejda 
Published: May 2017

Zusammenfassung
Dieser Beitrag hat zum Ziel, erste exemplarische Ergebnisse einer Dissertation zur konversationsanalytischen Erforschung von Schreibberatungsgesprächen mit nicht-muttersprachlichen Studierenden vorzustellen. Im Wesentlichen werden hier Interaktionen von Ratgebenden und Ratsuchenden in der Beratungsphase der Anliegensklärung diskutiert. Dafür wird zunächst der Forschungsgegenstand »Interaktionen in der Schreibberatung« anhand existierender konversations- bzw. gesprächsanalytischer Studien umrissen. Schreibberatung mit nicht-muttersprachlichen Studierenden als Form der institutionellen Kommunikation wurde im deutschen Kontext bisher nicht umfassend untersucht. Vorhandene punktuelle Einsichten in Schreibberatungsgespräche lassen keine Aussagen über Entwicklungsprozesse in der Beratungsinteraktion in mehreren aufeinanderfolgenden Gesprächen zu. Auf der Basis authentischer Beratungsgespräche in der Phase der Anliegensklärung werden Beispielanalysen durchgeführt, um die charakteristischen Phänomene für den Kommunikationstyp Schreibberatung mit nicht-muttersprachlichen Studierenden zu identifizieren und den Entwicklungen in Bezug auf diese Phänomene im Beratungsprozess nachzugehen.
Materialeinsatz in tandembasierten Fremdsprachenlernszenarien. Bericht aus einem laufenden Forschungsprojekt
Authors: Funk Hermann , Gerlach Manja , Spaniel Dorothea 
Published: May 2017

Zusammenfassung
Im vorliegenden Aufsatz werden Qualitätsstandards der Aufgaben- und Übungsgestaltung in Hinblick auf Fremdsprachenlernszenarien in online-Tandems diskutiert. Im EUgeförderten Forschungsprojekt zum Drittsprachenlernen L3TaSk, das seit 2014 an der Friedrich-Schiller-Universität Jena zusammen mit fünf weiteren europäischen Partnerhochschulen durchgeführt wird, steht die Evaluation tandembasierter Interaktionsdaten im Fokus. Ein Aspekt der Begleitforschung beinhaltet die Bereitstellung und Entwicklung von Lernmaterial, da davon ausgegangen wird, dass für diese Kommunikationsform existierende Aufgabenangebote den online-Tandems zugrunde liegenden Charakteristika (multimodal, autonom, auf Distanz) nur eingeschränkt gerecht werden. Fragen nach Gestaltungsprinzipien des im Rahmen des Projektes den Sprachlernenden zur Verfügung gestellten Lernmaterials (Aufbau, Grad der Steuerung, Visualisierung) sollen daher zum einen dargelegt und zum anderen mit Hilfe erster Antworten aus Teilnehmerbefragungen evaluiert werden. Der Aufsatz liefert damit einen Beitrag zum Thema aufgabenbasierte Gestaltung von Lern- und Arbeitsmaterialien unter Berücksichtigung der Bedeutung digitaler Medien für das Fremdsprachenlernen.
The Product Line Strategy of a Company Selling Seed with a Licensed GM Trait
Authors: Lemarié Stéphane , Baghdasaryan Delia , Campens Etienne 
Published: May 2017

Abstract
The economic impact of Genetically Modified Organisms (GMOs) depends heavily on the product line supplied by the seed companies. In this paper, we analyze the interlinking between seed product line and license contract signed between the seed company and the upstream agbiotech firm which owns the Genetically Modified (GM) trait. We show that if the farmers are sufficiently heterogeneous, the seed company prefers to price discriminate by supplying both GM and conventional seeds. In those circumstances, despite higher efficiency of the GM seed, the price increase is such that the farmer’s surplus decreases. This loss may even outweigh the aggregate gains of the seed and the agbiotech companies, thereby leading to a total welfare loss.
Opioid-induced hyponatremia in a patient with central diabetes insipidus: independence from ADH
Authors: Bhat Nandini , Balliu Erjola , Osipoff Jennifer , Lane Andrew , Wilson Thomas 
Published: May 2017

AbstractHyponatremia can be a complication of opioid therapy, which has been postulated to occur secondary to inappropriate antidiuretic hormone secretion (syndrome of inappropriate antidiuretic hormone secretion [SIADH]). We report severe hyponatremia following wisdom teeth extraction with opioid analgesia in a 19-year-old female with diabetes insipidus (DI) and acquired panhypopituitarism that challenges this theory. As this patient has DI, we believe opioid treatment caused severe hyponatremia by the following mechanisms: (1) Opioids have a direct antidiuretic effect independent of changes in ADH, as demonstrated in Brattleboro rats with central DI. (2) Hydrocodone may have stimulated this patient’s thirst center contributing to hyponatremia, as demonstrated in animal studies. Opioid use can cause hyponatremia in patients independent of ADH. It is important for clinicians to be aware of this so that patients can be appropriately counseled.
Some new trends in the design of single molecule magnets
Authors: Aldoshin Sergey M. , Korchagin Denis V. , Palii Andrew V. , Tsukerblat Boris S. 
Published: May 2017

Abstract
In this review we briefly discuss some new trends in the design of single molecule magnets based on transition (3d, 4d, 5d) and rare-earth (4f) metal ions. Within this broad theme the emphasis of the present review is placed on the molecules which exhibit strong magnetic anisotropy originating from the unquenched orbital angular momenta in the ground orbitally degenerate (or quasi-degenerate) states. Along with the general concepts we consider selected examples of the systems comprising orbitally-degenerate metal ions and demonstrate how one can benefit from strong single-ion anisotropy arising from the first-order orbital angular momentum. The role of crystal fields, spin-orbit coupling and structural factors is discussed. Some observation stemming from the analysis of the isotropic exchange interactions, magnetic anisotropy and strongly anisotropic orbitally-dependent superexchange are summarized as guiding rules for the controlled design of single molecule magnets exhibiting high barriers for magnetization reversal and, consequently, high blocking temperatures.
Synergy of cashew nut shell filler on tribological behaviors of natural-fiber-reinforced epoxy composite
Authors: Sathishkumar T.Palanisamy , Kumar Shanmugam Arun , Navaneethakrishnan Palanisamy , Siva Irulappasamy , Rajini Nagarajan 
Published: May 2017

Abstract
The aim of this work is to investigate the adhesive dry sliding wear and friction performance of biodegradable cashew nut shell (CNS)-filler-reinforced epoxy composite. The composites are prepared with 5, 10, 15, 20, 25, 30, 35, and 40 weight content of CNS filler. Experiments were conducted to perform the required measurements. The results show that the specific wear rates and frictional coefficients are found lower at 30% untreated and treated CNS-containing composites. The NaOH-treated CNS filler composites showed low wear and frictional performance compared to raw CNS. The back film formation was associated with the predominant wear mechanics with the formation of fine debris on the worn surface and counterface.
Morphometrical Analysis and Peak Runoff Estimation for the Sub-Lower Niger River Basin, Nigeria
Authors: Salami Adebayo Wahab , Amoo Oseni Taiwo , Adeyemo Joshiah Adetayo , Mohammed Abdulrasaq Apalando , Adeogun Adeniyi Ganiyu 
Published: May 2017

Abstract
This study utilized Spatial Information Technology (SIT) such as Remote Sensing (RS), a Geographical Information System (GIS), the Global Positioning System (GPS) and a high-resolution Digital Elevation Model (DEM) for a morphometrical analysis of five sub-basins within the Lower Niger River Basin, Nigeria. Morpho-metrical parameters, such as the total relief, relative relief, relief ratio, ruggedness number, texture ratio, elongation ratio, circularity ratio, form factor ratio, drainage density, stream frequency, sinuosity factor and bifurcation ratio, have been computed and analyzed. The study revealed that the contribution of the morphometric parameters to flooding suggest catchment No. 1 has the least concentration time and the highest runoff depth. Catchment No. 4 has the highest circularity ratio (0.35) as the most hazardous site where floods could reach a great volume over a small area.
Statistical Literacy in the Classroom: Should Introductory Statistics Courses Rethink their Goals?
Authors: McLauchlan Cynthia , Schonlau Matthias 
Published: May 2017

AbstractMany undergraduate degrees require the completion of an introductory statistics course, but it is unclear to what extent taking a statistics course improves statistical literacy. We conducted an online survey with a simple random sample of undergraduate students at the University of Waterloo, Canada. We then compared students who have completed at least one statistics course to those who have completed none and found that taking a statistics course did not improve statistical literacy on the questions asked (causation versus correlation, margin of error, and others). Introductory statistics courses may want to address statistical literacy as a learning outcome more explicitly for a better understanding of public policies.
MicroRNA-101 downregulation increases C-Fos expression and contributes to the pathogenesis of non-small cell lung cancer
Authors: Wang Hai-jiang , Li Guo-bao , Chen Xin-chun , Deng Guo-fang , Xia Zhao-hua , Li Jian , Fu Jia-peng , Zheng Yi-jie 
Published: May 2017

Abstract

Background
The molecular mechanisms involved in tumorigenesis of lung cancer remain to be further elucidated. MicroRNA (miRNA) is a class of non-coding RNAs associated with carcinogenesis. The present study aims to investigate the role of miRNA-101 (miR-101) in lung cancer.

Methods
MiR-101 was measured in human non-small cell lung cancer (NSCLC) tissues compared with the matched adjacent tissues. MiR-101 was transfected into NSCLC A549 cells. Bioinformatics predictions revealed a potential binding site of miR-101 on the 3′UTR of C-Fos, which was further confirmed by the luciferase assay. Western blot analysis and knockdown method were used to detect the expression and function of C-Fos

Results
The expression of miR-101 was downregulated in NSCLC. Overexpression of miR-101 suppressed cell proliferation of NSCLC A549 cells, and induced cell apoptosis. C-Fos was downregulated by miR-101 at the protein level. In addition, knockdown of C-Fos induced similar effects as overexpression of miR-101 in NSCLC cells.

Conclusion
These findings indicate that miR-101 regulate NSCLC cells growth through targeting C-Fos. Thus, strategies on C-Fos and/or miR-101 may be a potential molecular therapy for NSCLC.
Patellar Tendinopathy in Team Sports: Preventive Exercises
Authors: Peña Javier , Moreno-Doutres Daniel , Borràs Xantal , Altarriba Albert , Baiget Ernest , Caparrós Antoni , Buscà Bernat 
Published: May 2017

ABSTRACTPATELLAR TENDINOPATHY IS AN OVERUSE INJURY COMMONLY KNOWN AS “JUMPER'S KNEE” THAT CAUSES PAIN IN THE INFERIOR REGION OF THE PATELLA. THIS PATHOLOGY IS RECURRENT IN TEAM SPORTS AND HAS MORE IMPACT ON MALE ATHLETES. SOME ANATOMICAL INTRINSIC FACTORS AND SEVERAL EXTRINSIC FACTORS SEEM TO BE KEY IN TRIGGERING THIS CONDITION THAT IS ALSO INCREASINGLY APPEARING IN CHILDREN AND ADOLESCENTS. THE AIM OF THIS ARTICLE IS TO PROVIDE COACHES AND PRACTITIONERS WITH SOME USEFUL PRACTICE-BASED EXERCISES THAT CAN BE HELPFUL IN PREVENTING THESE DISABLING TENDON INJURIES IN SPORTS SUCH AS VOLLEYBALL, BASKETBALL, SOCCER, AMERICAN FOOTBALL, AND TEAM HANDBALL.
The Impact of Pediatric-Specific Vancomycin Dosing Guidelines: A Quality Improvement Initiative
Authors: Miloslavsky Molly , Galler Marjorie F. , Moawad Iman , Actis Janet , Cummings Brian M. , El Saleeby Chadi M. 
Published: May 2017

BACKGROUND AND OBJECTIVES:
There are limited data guiding vancomycin dosing practices in the pediatric population to target the goal troughs recommended by national vancomycin guidelines. In this study, we sought to improve adherence to guideline trough targets through a quality improvement intervention.

METHODS:
A retrospective analysis was first conducted to assess baseline performance. A multidisciplinary team then developed and implemented a standardized dosing algorithm recommending 15 mg/kg per dose for mild and moderate infections (goal trough: 10–15 µg/mL) and 20 mg/kg per dose for severe infections (goal trough: 15–20 µg/mL), both delivered every 6 hours (maximum single dose: 750 mg). The impact of the intervention was evaluated prospectively using standard statistics and quality improvement methodology. The outcome measures included the percentage of patients with an initial therapeutic trough and the time to therapeutic trough.

RESULTS:
A total of 116 patients (49 preintervention, 67 postintervention) were included. Postintervention, there was a significant increase in the percentage of patients with an initial therapeutic trough (6.1% to 20.9%, P = .03) and in the percentage of patients with initial troughs between 10 and 20 µg/mL (8.2% to 40.3%, P &lt; .001). The time to therapeutic trough decreased from 2.78 to 1.56 days (P = .001), with the process control chart showing improved control postintervention. Vancomycin-related toxicity was unchanged by the intervention (6.1% versus 4.5%; P = .70).

CONCLUSIONS:
Using quality improvement methodology with standardized higher initial vancomycin doses, we demonstrated improved adherence to national trough guidelines without noted safety detriment.
Effectiveness of Evidence-Based Asthma Interventions
Authors: Kennedy Suzanne , Bailey Ryan , Jaffee Katy , Markus Anne , Gerstein Maya , Stevens David M. , Lesch Julie Kennedy , Malveaux Floyd J. , Mitchell Herman 
Published: May 2017

BACKGROUND AND OBJECTIVES:
Researchers often struggle with the gap between efficacy and effectiveness in clinical research. To bridge this gap, the Community Healthcare for Asthma Management and Prevention of Symptoms (CHAMPS) study adapted an efficacious, randomized controlled trial that resulted in evidence-based asthma interventions in community health centers.

METHODS:
Children (aged 5–12 years; N = 590) with moderate to severe asthma were enrolled from 3 intervention and 3 geographically/capacity-matched control sites in high-risk, low-income communities located in Arizona, Michigan, and Puerto Rico. The asthma intervention was tailored to the participant’s allergen sensitivity and exposure, and it comprised 4 visits over the course of 1 year. Study visits were documented and monitored prospectively via electronic data capture. Asthma symptoms and health care utilization were evaluated at baseline, and at 6 and 12 months.

RESULTS:
A total of 314 intervention children and 276 control children were enrolled in the study. Allergen sensitivity testing (96%) and home environmental assessments (89%) were performed on the majority of intervention children. Overall study activity completion (eg, intervention visits, clinical assessments) was 70%. Overall and individual site participant symptom days in the previous 4 weeks were significantly reduced compared with control findings (control, change of −2.28; intervention, change of −3.27; difference, −0.99; P &lt; .001), and this result was consistent with changes found in the rigorous evidence-based interventions.

CONCLUSIONS:
Evidence-based interventions can be successfully adapted into primary care settings that serve impoverished, high-risk populations, reducing the morbidity of asthma in these high-need populations.
Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
Authors: Ferreira Josemar Martins , Renovato Sara Rodrigues , Santana Fernanda Ribeiro , Decurcio Daniel De Almeida , Soares Carlos José , Estrela Carlos 
Published: May 2017

Objective: This study evaluated the effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine.Methods: Seventy bovine teeth were divided into 7 experimental groups (n=10) according to the bleaching agent used: SpH – sodium perborate + 20% hydrogen peroxide; SpW – sodium perborate + distilled water; Cp37 – 37% carbamide peroxide; Cp16 – 16% carbamide peroxide; Cp10 – 10% carbamide peroxide; H – 35% hydrogen peroxide; C – no bleaching agent (control). After bleaching, posts were cemented with a self-adhesive resin cement (RelyX U100) and the roots were crosssectioned to obtain two discs from each third. The posts underwent micropush-out testing, and bond strength values (MPa) were analyzed using ANOVA in a split-plot arrangement and the Tukey test (p<0.05). Failure mode was evaluated under confocal microscopy.Results: There were no significant differences between the control and bleaching agent groups. Bond strength was greater in the cervical third of the 16% carbamide peroxide (Cp16) group than in the sodium perborate + 20% hydrogen peroxide (SpH) group. The cervical third had a higher bond strength than the apical third in the 10% carbamide peroxide (Cp10), 16% carbamide peroxide (Cp16) and sodium perborate + distilled water (SpW) groups, and no significant differences in the other groups. Adhesive cement-dentine failure was prevalent in all groups.Conclusion: The use of internal bleaching agents did not decrease the bond strength of glass fiber posts to root dentin.
Universal Adhesive Systems in Class II Amalgam Restorations
Authors: Nascimento Armiliana Soares , De Lima Eliana Alves , Souza Yasmine De Carvalho , Canto Joseane Delfino , Durão Marcia De Almeida , Braz Rodivan 
Published: May 2017

Objective: to assess the effectiveness of adhesive system in reducing microleakage in Class II amalgam restorations.Methods: The teeth were divided randomly into 3 equal groups: Group I was the control experiment (Copal Vanish); Group II: single Bond Universal 3M-ESPE (with and without acid – 37%); and Group III: All Bond Universal – BISCO (with and without acid – 37%), after the amalgam was condensed. The root apices were then sealed with acrylic resin and stored for 24 hours in 100% humidity. After storage, the specimens were subjected to 500 cycles of thermocycling (5°C and 55°C). The teeth were isolated with cosmetic nail polish and were immersed in 0.5 basic fuchsin dye for 24 hours. The teeth then were sectioned with a diamond disc and observed under a stereomicroscope. Microleakage was assessed using a 0-3 scale of dye penetration. The data was analyzed using the Kruskal-Wallis test (p<0.05).Results: The microleakage scores revealed less leakage in the experimental groups than in the control group. The microleakage for the adhesives without acid conditioning was reduced, although no statistical significance was recorded (p<0.05).Conclusion: The immediate adhesive material acted effectively as a barrier for microleakage when it was applied without acid.
Effectiveness of photodynamic therapy and sodium hypochlorite on root canal system infected with Enterococcus faecalis – An in vitro study
Authors: Souza Matheus Albino , Steier Liviu , Rossi-Fedele Giampiero , Barth Júnior Valdir , De Oliveira Silvia Dias , De Figueiredo José Antonio Poli 
Published: May 2017

Objective: The purpose of this study was to evaluate, in vitro, the effectiveness of photodynamic therapy and sodium hypochlorite over root canal system infected with Enterococcus faecalis.Methods: The root canals of 45 single-rooted human extracted teeth were enlarged up to a file 60, autoclaved, inoculated with Enterococcus faecalis and incubated for 30 days. The samples were divided into five groups (G1 – n=5; G2-G5 – n=10) according to the protocol of decontamination: G1 (negative control) – no procedure was performed; G2 – distilled water; G3 – hotodynamictherapy (PDT); G4 – 2.5% sodium hypochlorite (NaOCl); and G5 – 2.5% NaOCl+PDT. Scanning electron microscopy (SEM) were performed to evaluate the effectiveness of proposed treatments. The assessment was made by images of each third at 5000x magnification for the canal wall and 10000x for the exposed tubule area. The presence of bacteria was scored by position ranks from 1 to 45, where the higher the value, the cleanliness of the sample. Data were subjected to one-way ANOVA followed by post-hoc Tukey test (α=0.05).Results: Group 4 (2.5% NaOCl) and 5 (2.5% NaOCl + PDT) had the highest mean of position ranks for all thirds of the root canal in the canal wall, which was statistically different from groups 1, 2 and 3 (p<0.05). Group 3 (PDT), group 4 (2.5% NaOCl) and 5 (2.5% NaOCl+PDT) had the highest mean of position ranks in the exposed tubule area, which was statistically different from groups 1 and 2 (p<0.05).Conclusion: the association of 2.5% sodium hypochlorite + photodynamic therapy can be considered an effective protocol for the elimination of Enterococcus faecalis.
IMPLICAÇÕES DA AUTONOMIA NA GESTÃO DA APRENDIZAGEM EM AMBIENTE VIRTUAL
Authors: Martins José Lauro , Silva Bento Duarte 
Published: May 2017

O conceito de autonomia apresentado por diversos autores diz respeito á proatividade dos aprendentes para acessar, navegar, buscar os conteúdos, responder as demandas dos professores. Nossa pergunta é: isso é suficiente para entender que este ou aquele aprendente é autônomo? Para aprofundar esse debate fizemos solicitamos a 10 professores que atuaram em um curso de pós-graduação online o que eles elencariam para identificar o grau de autonomia dos aprendentes em relação ao processo de aprendizagem. A partir da analise das respostas, propomos que a autonomia não pode ser considerada apenas instrumental e que deve fazer parte das estratégias formativa
ESTUDIO DE REACTIVO INHIBIDOR - COLECTOR PARA MINERALES DE COBRE
Authors: Campusano Luis Valderrama , Petkovic Z. , Rajevic I. 
Published: May 2017

En los últimos años los elevados costos en la molienda han focalizado la atención en el aumento de la eficiencia y en la disminución del consumo de medios de molienda. En esta línea han aparecido en el mercado una nueva serie de inhibidores para la corrosión y colectores para la flotación, bajo el nombre comercial de PETKOM. Estos reactivos son interesantes de estudiar porque disminuyen el consumo de acero y actúan como colectores selectivos, entregando concentrados de mayor pureza en el caso de cobre. En este estudio se realizaron pruebas de laboratorio en paralelo, con y sin el uso de inhibidor, para determinar el consumo de acero. La densidad de pulpa usada en la prueba estándar fue de 70%, y con inhibidor de 76%, agregando una dosis de SKIK de 30 g/t en el molino. Los resultados mostraron un ahorro en el consumo de bolas de 1,9 % para para el mismo tiempo de molienda y gasto en energía; además el inhibidor permitió moler un porcentaje de mineral adicional de 9%. La eficiencia del SKIK como colector se puso a prueba en flotación, donde se comparó con el reactivo MATCOL (20 g/t), en dosis de 10, 20 y 30 g/t a diferentes pH. Este nuevo reactivo mostró un aumento en la recuperación de 1 a 2% en cobre, 9,2% en oro y 4,9% en plata.
História da África: uma disciplina em construção
Authors: Guerra Marcia 
Published: May 2017

En este artículo se presenta una revisión del proceso de aplicación de la Ley 10639/03, que establece la inclusión obligatoria de los contenidos de Historia y Cultura de África y del Brasil africano en el sistema escolar brasileño. Se evaluó la relación entre la aplicación de la ley en la Educación Básica y el establecimiento de una disciplina académica específica —la Historia de África— en los cursos de grados en Historia en el Estado de Río de Janeiro. También presentan un perfil de la disciplina hoy en día sobre la base de los actuales Programas de estudios presentados por los profesores.
La educación propia: entre legados católicos y reivindicaciones étnicas
Authors: González Terreros María Isabel 
Published: May 2017

El artículo presenta la propuesta de educación propia que se implementa en el departamento del Cauca, Colombia, la cual nace de la intención de fortalecer el movimiento ind?gena y recuperar su cultura, subsumida por un modelo de educación confesional y tradicional. Estas perspectivas antagónicas étnica/confesional—, tal y como se analizan en el estudio, hacen parte del conflicto sociocultural que subyace a la educación propia, en el que confluyen, además, diferentes sectores, historias, legados y propuestas.