bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimizing Teacher-Student Collaborative Assessment in the Production-Oriented Approach: A Dialectical Research
Authors: Sun Shuguang 
Published: October 2020

AbstractTeacher-student collaborative assessment (TSCA) aims to address the challenges of responding to students’ work in the Production-Oriented Approach: low efficiency and poor effectiveness. As part of a bigger project carried out in a Chinese university over a period of three years, the present study explored how the teacher prepared and implemented TSCA in class, especially with a focus on how she determined the assessing objective and worked collaboratively with her students in class to achieve it, using the students’ written and translated texts as examples. By adopting the dialectical research (DR) method, this paper collected qualitative data such as teaching plans, classroom recordings, and reflective journals of the teacher-researcher (the author), along with students’ written drafts and translated texts. TSCA theory and classroom practice have been refined simultaneously by means of putting theory into practice and reflecting upon it. The optimized pre-class and in-class procedures may shed some light on applying TSCA to L2 classrooms.
Instruction of Nominalization by Applying Enabling of POA
Authors: Chen Hao 
Published: October 2020

AbstractIt is noticeable that the academic papers written by Chinese English learners are lacking in academic features largely due to their poor ability to use nominalization. Therefore, the instruction of nominalization in an academic English writing course is badly needed. The author conducted one-semester-long instruction of nominalization to 90 non-English majors under the guidance of the production-oriented approach (POA). This research demonstrated how to apply POA, specifically, the enabling procedure to the teaching of nominalization. By triangulating the data of students’ interviews, learning journals and written output, and the data of 4 teachers’ class observations and interviews, this study found that the accurate application of the three criteria of effective enabling contributed to the improvement of the quantity and quality of nominalization in academic writing.
An Integrated Model of Teaching Theory and Action Research in POA-based Textbook Writing
Authors: Chang Xiaoling 
Published: October 2020

AbstractTeaching theories provide important guidance for language teaching materials development, but there is little research on how textbook writers apply teaching theories in the actual writing process. This study analyzes the process of compiling iEnglish, a series of textbooks based on the Production-Oriented Approach (POA) and proposes an Integrated Model of Teaching Theory and Action Research for textbook writing. By elaborating the roles of teaching theory and action research at different stages of textbook writing and the interaction between theory and practice during the process, the study concludes that the Integrated Model can promote both textbook improvement and theory refinement.
On the Threshold Condition for Dörfler Marking
Authors: Diening Lars , Kreuzer Christian 
Published: October 2020

Abstract
It is an open question if the threshold condition

θ
<

θ
⋆

\theta<\theta_{\star}

for the Dörfler marking parameter is necessary to obtain optimal algebraic rates of adaptive finite element methods.
We present a (non-PDE) example fitting into the common abstract convergence framework (axioms of adaptivity) which allows for convergence with exponential rates.
However, for Dörfler marking

θ
>

θ
⋆

\theta>\theta_{\star}

, the algebraic convergence rate can be made arbitrarily small.
Circumvallate placenta and abnormal cord insertion as risk factors for intrauterine growth restriction and preterm birth: a case report
Authors: Dukatz Ricarda , Henrich Wolfgang , Entezami Michael , Nasser Sara , Siedentopf Jan-Peter 
Published: October 2020

Abstract

Objectives
Circumvallate placenta is a rare abnormality of placental shape. Current data indicates that a circumvallate placenta can be a risk factor for severe adverse obstetric and neonatal outcomes such as antepartum bleeding, premature delivery, oligohydramnios, intrauterine growth restriction and placental abruption. An unusual insertion of the umbilical cord can cause a reduction of perfusion and can also lead to pregnancy complications. However, the clinical significance of these pathoanatomical findings often remains unclear.

Case presentation
We report a case of a 22-year-old third gravida nullipara in 28+2 pregnancy weeks with a pathological cardiotocography (CTG) and a growth restricted fetus with oligohydramnios and pathological umbilical blood flow. Due to recurrent decelerations of fetal heart rate the baby was delivered via cesarean section. The examination of the placenta showed a circumvallate placenta and fixated umbilical cord mimicking a battledore insertion.

Conclusions
It can be concluded that circumvallate placenta may predispose to severe obstetric complications. Women with circumvallate placenta and abnormal cord insertion probably benefit from stringent follow ups in a specialized perinatal center. Histopathological examination of the placenta can be a diagnostic tool in women with recurrent obstetric complications.
Russland – Neue Nischen im unterdrückten Raum
Authors: von Ow-Freytag Barbara 
Published: October 2020

ZusammenfassungMit einer anhaltenden Flut repressiver Gesetze steht Russland bis heute an der Spitze der Staaten, die weltweit den Raum für zivilgesellschaftliches Engagement verengen. Das harte Vorgehen gegen zivilgesellschaftliche Gruppen spiegelt die staatliche Unterdrückung der gesamten russischen Gesellschaft. Doch die wachsende Kluft zwischen Staat und Bürger*innen eröffnet neue Chancen für zivilgesellschaftliche Initiativen. Mit neuen digitalen Formaten gelingt vielen Gruppen das, woran staatliche Behörden zunehmend scheitern: Vertrauen und Legitimität in Teilen der russischen Gesellschaft aufzubauen. Eine neue Welle staatlichen Drucks droht den (zivil)gesellschaftlichen Raum weiter einzuengen. Doch angesichts der Wirtschaftskrise, die der COVID-19-Pandemie zu folgen droht, sollte sich das Potential ziviler Gruppen, schnell und kreativ zu agieren, zum Wohl des Landes entfalten können.
Enhancing the Transformative Potential of the Sustainable Development Goals (SDGs)
Authors: Akestoridi Katerina , Seatzu Francesco 
Published: October 2020

Abstract
This work consists in a critical examination of an argument which purports to prove that unless the mainstream model which dominates the development industry changes, the Sustainable Development Goals (SDGs) will become a missed opportunity to eradicate poverty. The work is structured into three sections (plus an introduction and a conclusion) as follows: section one provides an overview of the previous UN policy agenda, the Millennium Development Goals; section two examines the SDGs framework as articulated in the 2030 Agenda. Building upon the latter, section three inquires why socio-economic growth should be the sole measure of human progress.
Wie digitalisiert man Bilder mit Blick auf die digitale Langzeitarchivierung?
Authors: Pfeiffer Michel J. 
Published: October 2020

Zusammenfassung
Der Text geht der Frage nach, welche spezifischen Anforderungen eine digitale Langzeitarchivierung an Bilddaten stellt. Denn nicht jedes digitale Bild ist in situ archivwürdig, nur weil dessen Format als ‚archivwürdig‘ eingestuft wird. Vielmehr geht es um qualitative Merkmale, welche sich messen lassen, um die geforderte Archivqualität zweifelsfrei, transparent und nachvollziehbar zu überprüfen. Dies sollte sowohl in der Gegenwart als auch in der Zukunft gültig sein.
Das erweiterte Potenzial von Bildungsdaten
Authors: Husfeldt Vera , Schiller David , Alt Sharon 
Published: October 2020

Zusammenfassung
Je mehr Bildungsdaten wir sinnvoll kombinieren und verwenden können, desto mehr können wir über das Lernen und über die Qualität unseres Bildungssystems aussagen. Eine interdisziplinäre Forschendengruppe der Fachhochschule Graubünden (FHGR) hat sich im Rahmen ihres Projekts „Virtual Educational Observatory“ (VEO) zum Ziel gesetzt, das Potenzial von Bildungsdaten durch die Verknüpfung und Weiterverarbeitung vorhandener und zukünftig anfallender Quellen zu erweitern. Der Beitrag beschreibt die Voraussetzungen und Ziele des soeben begonnenen Projekts und geht dabei auch auf die Einbettung in die aktuelle Bildungslage ein, die durch die Corona-Epidemie entstanden ist.
Optimierung von Unternehmensbewertungen durch automatisierte Wissensidentifikation, -extraktion und -integration
Authors: Weichselbraun Albert , Kuntschik Philipp , Hörler Sandro 
Published: October 2020

Zusammenfassung
Unternehmensbewertungen in der Biotech-Branche, Pharmazie und Medizintechnik stellen eine anspruchsvolle Aufgabe dar, insbesondere bei Berücksichtigung der einzigartigen Risiken, denen Biotech-Startups beim Eintritt in neue Märkte ausgesetzt sind. Unternehmen, die auf globale Bewertungsdienstleistungen spezialisiert sind, kombinieren daher Bewertungsmodelle und Erfahrungen aus der Vergangenheit mit heterogenen Metriken und Indikatoren, die Einblicke in die Leistung eines Unternehmens geben. Dieser Beitrag veranschaulicht, wie automatisierte Wissensidentifikation, -extraktion und -integration genutzt werden können, um (i) zusätzliche Indikatoren zu ermitteln, die Einblicke in den Erfolg eines Unternehmens in der Produktentwicklung geben und um (ii) arbeitsintensive Datensammelprozesse zur Unternehmensbewertung zu unterstützen.
Numerische Simulation – von der Formel zum bunten Bild
Authors: Mundani Ralf-Peter 
Published: October 2020

Zusammenfassung
Numerische Simulation dient der Vorhersage und Analyse komplexer physikalischer Zusammenhänge, die im Gegensatz zum meist (deutlich) teureren Experiment am Rechner durchgeführt wird und damit beliebig oft wiederholt werden kann. Auf Basis mathematischer Modelle wird die Lösung eines Problems mithilfe numerischer Verfahren berechnet und zum besseren visuellen Verständnis in graphischer Form als Bild oder Film dargestellt. Im vorliegenden Beitrag soll hierzu die gesamte Prozesskette – von der Formel zum bunten Bild – am Beispiel der Hochwassersimulation aufgezeigt werden.
Prophylactic effect of aquatic extract of stevia on acetic acid induced-ulcerative colitis in male rats: a possible role of Nrf2 and PPARγ
Authors: Mostafa Abeer F. , Elalfy Mahmoud M. , Shata Ahmed , Elhadidy Mona G. 
Published: October 2020

Abstract

Objectives
Ulcerative colitis (UC) is a non-specific intestinal inflammatory disease. Several studies demonstrated that inflammation and oxidative stress play significant role in the pathogenesis of this disease. This study aimed to determine the protective effect and possible mechanism by which stevia affects the course of experimentally induced colitis.

Methods
Male rats were received stevia 20, 40, 80 mg/kg/day before induction of colitis by intra-rectal administration of 2 mL of 4% acetic acid, AA. Macroscopic and histopathological examination of the colon were done. Colonic content of catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH), myeloperoxidase (MPO) and thiobarbituric acid reactive substances (TBARS) activities and serum levels of interleukin (IL)1- β and tumor necrosis factor (TNF)-α were assessed. Real time-PCR (RT-PCR) was done to determine the expression of NF-κB, Nrf2 and PPARγ genes. Spontaneous contraction and effects of increasing concentrations of acetylcholine and stevia have been studied on the isolated colonic segments.

Results
Stevia ameliorated colitis not only histopathologically but also it decreased the level of TNF-α, IL-1β, TBARS, MPO and the expression of NF-κB which were significantly increased in the AA group. The concentration of GSH, SOD, CAT and expression of Nrf2 and PPARγ were significantly increased with stevia. Moreover, stevia showed a relaxant effect on the colonic contractility which was increased in AA group. These all effects of stevia were more prominent with its highest dose.

Conclusion
Our results explored that, stevia acts protectively against UC by its anti-inflammatory and antioxidant properties which mediated by up-regulation of Nrf2 and PPARγ with downregulation of NF-κB. We suggest that stevia has the potential for treatment of chronic inflammatory diseases, such as UC.
Identification of a space- and time-dependent source in a variable coefficient advection-diffusion equation from Dirichlet and Neumann boundary measured outputs
Authors: Sebu Cristiana 
Published: October 2020

Abstract
This paper considers the inverse problem of identifying an unknown space- and time-dependent source function

F
⁢

(
x
,
t
)

F(x,t)

in the variable coefficient advection-diffusion equation

u
t

=

(

D
⁢

(
x
)

⁢

u
x

)

x

-

(

V
⁢

(
x
)

⁢
u

)

x

+

F
⁢

(
x
,
t
)

u_{t}=(D(x)u_{x})_{x}-(V(x)u)_{x}+F(x,t)

from the Dirichlet

ν
⁢

(
t
)

:=

u
⁢

(
ℓ
,
t
)

\nu(t):=u(\ell,t)

and Neumann

f
⁢

(
t
)

:=

-

D
⁢

(
0
)

⁢

u
x

⁢

(
0
,
t
)

f(t):=-D(0)u_{x}(0,t)

,

t
∈

(
0
,
T
]

t\in(0,T]

, boundary measured outputs.
This problem was motivated by several important real-world applications in the field of contaminant hydrogeology, and the novel analysis presented here is highly relevant to problems of practical interest.
The input-output operators corresponding to the Dirichlet and Neumann measured boundary data are introduced.
The inverse problem is then formulated as a system of operator equations consisting of these operators and the measured outputs.
The compactness and Lipschitz continuity of the input-output operators are proved in the relevant classes of admissible source functions ℱ and

F
r

\mathcal{F}_{r}

.
These results together with the derived trace estimates allow us to show the existence of a quasi-solution of the inverse source problem as a minimum of the Tikhonov functional, under minimal regularity assumptions with respect to the source function and other inputs.
An explicit gradient formula for the Fréchet gradient of the Tikhonov functional is also derived by means of an appropriate adjoint problem.
Clinical guidance and perinatal care in the era of coronavirus disease 2019 (COVID-19)
Authors: Afshar Yalda , Silverman Neil S. , Han Christina S. , Platt Lawrence D. 
Published: October 2020

Abstract
Pregnant women may be at risk for more severe manifestations and sequelae of infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). At this time, there remain significant evidence gaps to allow for comprehensive counseling of pregnant women and their families, specifically regarding the risks of gestational-age specific maternal outcomes and potential risks of intrauterine or peripartum viral transmission to the fetus or newborn. As maternal fetal medicine providers and consultants, we are uniquely positioned to mitigate the risks associated with maternal infection and to guide the care for infected pregnant women by being able to provide the most current evidence-based recommendations. Such care requires incorporating the rapidly evolving data regarding this virus and its impact on pregnancy, as well as taking a stand to advocate for best scientific and clinical practices to optimize both women’s health and public health during this pandemic.
Advances in the role of miRNAs in the occurrence and development of osteosarcoma
Authors: Zhang Guanyu , Li Yiran , Xu Jiasheng , Xiong Zhenfang 
Published: October 2020

AbstractOsteosarcoma (OS) is the most common primary malignant tumor of the skeletal system in the clinic. It mainly occurs in adolescent patients and the pathogenesis of the disease is very complicated. The distant metastasis may occur in the early stage, and the prognosis is poor. MicroRNAs (miRNAs) are non-coding RNAs of about 18–25 nt in length that are involved in post-transcriptional regulation of genes. miRNAs can regulate target gene expression by promoting the degradation of target mRNAs or inhibiting the translation process, thereby the proliferation of OS cells can be inhibited and the apoptosis can be promoted; in this way, miRNAs can affect the metabolism of OS cells and can also participate in the occurrence, invasion, metastasis, and recurrence of OS. Some miRNAs have already been found to be closely related to the prognosis of patients with OS. Unlike other reviews, this review summarizes the miRNA molecules closely related to the development, diagnosis, prognosis, and treatment of OS in recent years. The expression and influence of miRNA molecule on OS were discussed in detail, and the related research progress was summarized to provide a new research direction for early diagnosis and treatment of OS.
LncRNA NEAT1 promotes gastric cancer progression via miR-1294/AKT1 axis
Authors: Wu Dianchao , Li Hui , Wang Junfeng , Li Hua , Xiao Qihai , Zhao Xiaofeng , Huo Zhibin 
Published: October 2020

Abstract
Long non-coding RNAs (lncRNAs) were reported to promote the development of gastric cancer (GC). Nuclear-enriched abundant transcript 1 (NEAT1) played a great role in diverse cancers, but the mechanism of NEAT1 in GC remains indistinct. NEAT1 and AKT1 were distinctly up-regulated and miR-1294 was down-regulated in GC tissues and cells. Cell proliferation and metastasis were refrained but apoptosis was promoted in GC cells after knockdown of NEAT1. NEAT1 negatively regulated miR-1294 expression, and the miR-1294 inhibitor reverted the si-NEAT1-induced effect on GC cells. NEAT1 modulated AKT1 expression through miR-1294, and the si-NEAT1-induced effect was relieved by AKT1. NEAT1 affected phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) signaling pathway via regulating miR-1294 and AKT1. NEAT1 could modulate cell proliferation, apoptosis, and metastasis in GC cells by regulating the PI3K/AKT/mTOR signaling pathway via the miR-1294/AKT1 axis, showing the great potential for NEAT1 as a valid biomarker in the progression and treatment of GC.
Conflict Externalization and the Quest for Peace: Theory and Case Evidence from Colombia
Authors: Galindo-Silva Hector 
Published: October 2020

AbstractI study the relationship between the likelihood of a violent domestic conflict and the risk that such a conflict “externalizes” (i.e. spreads to another country by creating an international dispute). I consider a situation in which a domestic conflict between a government and a rebel group has the potential to externalize. I show that the risk of externalization increases the likelihood of a peaceful outcome, but only if the government is sufficiently powerful relative to the rebels, the risk of externalization is sufficiently high, and the foreign actor who can intervene in the domestic conflict is sufficiently uninterested in material costs and benefits. I show how this model helps to understand the recent and successful peace process between the Colombian government and the country’s most powerful rebel group, the Revolutionary Armed Forces of Colombia (FARC).
Thermal and mechanical behavior of SBR/devulcanized waste tire rubber blends using mechano–chemical and microwave methods
Authors: Ali Magdy A. M. , Raslan Heba A. , El-Nemr Khaled F. , Hassan Medhat M. 
Published: October 2020

Abstract
The engagement of waste tires rubber as source of raw materials for different applications can be a partial solution to the great environmental problems caused by these products. In this study, waste tire rubber was devulcanized using both mechano–chemical and microwave methods. This process was achieved using different concentrations of 2-mercapto benzothiazole disulfide (MBTS) and tetramethylthiuram disulfide (TMTD) as a devulcanizing agent and different microwave devulcanizing times. The optimum content of both MBTS, TMTD and suitable microwave treatment time to make continuous film were noted. The devulcanized waste rubber was then added, at different concentrations, to virgin styrene–butadiene rubber (SBR). The thermal properties and dynamic mechanical behaviors were investigated for all blends. The thermal analysis proved that natural and styrene butadiene rubber are the main two constituents of the waste tire rubber utilized in this study. The mechanical behavior of the SBR blends remarkably improved by using 20 phr waste rubber (WR) devulcanized by 2 phr MBTS and by exposure for 2.2 min to microwaves. Storage modulus, tearing strength and tension set behaviors notably improved for all SBR/WR blends by irradiating with gamma ionizing radiation with a dose of 100 kGy and further improvement could be attained by increasing the dose up to 200 kGy.
Platonic Perfectionism in John Williams’Stoner
Authors: Gåvertsson Frits 
Published: October 2020

AbstractI argue that given a plausible reading of John Williams’sStoner(2012 [1965]) the novel throws light on the demands and costs of pursuing a strategy for self-realisation along Platonic lines which seeks unification through the adoption of a single exclusive end in a manner that emulates the Socratic maieutic teacher. The novel does not explicitly argue either for or against such a strategy but rather vividly depicts its difficulties, appeal, and limitations, thus leaving the ultimate evaluation up to the reader.
Towards a semiotic model of interlingual translation
Authors: Rędzioch-Korkuz Anna M. 
Published: October 2020

AbstractThe discipline of translation studies has been recently challenged with powerful incentives from other sciences. This tendency has become visible especially in the context of more and more interdisciplinary or multidisciplinary methodologies, which have changed the profile of translation research to a considerable degree. It has also shifted the perspective with which scholars perceive key concepts of the discipline, many of which have become rather unpopular if not completely outdated. However, it seems true that instead of rejecting old terms translation scholars should try to reconcile the old and new by adopting more general frameworks that would allow them to re-interpret or re-write the existing knowledge. Moving intellectual investigations beyond the level of natural languages, semiotics may offer this framework. The article is an attempt to show the potential of a semiotics-based model of interlingual translation and to support the hypothesis that every act of translation is semiotic by nature. To this end it outlines the most significant ideas of semiotic approaches to translation studies and semiotics, with special attention to translation semiotics and semiotics of culture. This in turn helps to draft a working model of interlingual translation and its constraints.
Analysis of Carreau fluid flow by convectively heated disk with viscous dissipation effects
Authors: Malik Rabia , Sadaf Hina , Dastar Fiza 
Published: October 2020

Abstract
The primary motive of this study is to examine boundary layer flow of Carreau fluid over a convectively heated disk stretching with nonlinear velocity. The flow is assumed to be two dimensional. Moreover, viscous dissipation possessions are taken into description. The dominating nonlinear differential equations involving partial derivatives are changed into nonlinear differential equations involving ordinary derivatives by applying suitable transformations. Numerical outcomes for velocity and temperature are obtained from MATLAB’s built-in solver bvp4c and presented graphically and in tabular form.
High-pressure synthesis and crystal structure of HP-Al2B3O7(OH)
Authors: Vitzthum Daniela , Widmann Ingo , Plank Markus , Joachim-Mrosko Bastian , Huppertz Hubert 
Published: October 2020

Abstract
Orthorhombic HP-Al2B3O7(OH) was synthesized in a Walker-type multianvil apparatus under high-pressure/high-temperature conditions of 12.4 GPa and 1200 °C, respectively. Its structure is isotypic to that of Ga2B3O7(OH) and has been determined via single-crystal X-ray diffraction at room temperature. HP-Al2B3O7(OH) crystallizes in the space group Cmce (Z = 8) with the lattice parameters a = 10.3124(4), b = 7.3313(3), c = 10.4801(5) Å, and V = 792.33(6) Å3. The compound has also been characterized by IR and Raman spectroscopy.