bluuebunny/crossref_metadata_2025_split huggingface dataset:
A planar heat conduction element improving temperature-related simulation accuracy
Authors: Jun Duan , Ban Yuxin 
Published: July 2020

Abstract
In the numerical study of temperature field in the fields of freezing and thawing cycles in cold regions, geothermal energy and functionally graded materials, the selection of heat conduction elements of the finite element method has an important influence on the numerical calculation results. Based on the fundamental solution and heat conduction theory, the fundamental solutions of the two-dimensional heat conduction control equation were added in the temperature interpolation function of the conventional planar 4-node quadrilateral heat conduction element. A new planar heat conduction non-coordination element with the fundamental solutions was established. The element interpolation function and the stiffness matrix were derived, and the element convergence was examined. The calculation accuracy was compared among the plane heat conduction non-coordination element with the fundamental solutions, the conventional finite element method and the analytical solution. The results showed that the planar heat conduction non-coordination element with the fundamental solutions proposed in this paper is high in calculation method and precision.
Construction Strategies of Rural Residential Management Data Platform—A Case Study of Crystal Town Residence in Pingwu County, Mianyang
Authors: Mei Wu , Dan He 
Published: July 2020

Abstract
There are large numbers and areas of rural dwellings in China. Because of remote locations of many villages or improper protections of local residents, countless historical villages and traditional dwellings are gradually disappearing. Digital information platforms will preserve data of residential buildings through professional surveys and mappings, which timely and effectively integrate all kinds of residential information, share data to the maximum extent and protect valuable residential buildings.
Research on Coordinated Charging and Discharging Operation Mode of Electric Vehicle Based on Time-Space Double-layer Optimization
Authors: Li Lei , Zhang Jian , Zhang Jing , Li Taoyong , Liu Weidong , Li Dan , Liu Zhibin 
Published: July 2020

Abstract
In order to reduce the adverse impact of electric vehicles (EVs) charging load on the grid and guide users to participate in the grid interaction reasonably and effectively, an coordinated charging and discharging control model of EVs based on the two dimensions of time and space is established in this paper to meet the dynamic and economic needs of users’ coordinated charging and discharging. Considering the space-time distribution characteristics of EVs, the model is decoupled into an optimal scheduling sub-model based on time and space scale, and the model is solved by genetic algorithm and power flow calculation. The example shows that the model can effectively reduce the peak-to-valley difference, achieve the effect of peak-cutting and valley-filling, and the dual optimization goals of optimizing the operation of the system and encouraging users to participate in V2G are achieved.
Construction of Curriculum System for Software Engineering Major under Background of New Engineering—A Case Study of Anhui Sanlian University
Authors: Yu Jiujiu , Zhang Jishan , Wu Ning , Mei Yingying , Zhu Canglu , Zhang Deqing , Xiao Gang , Zhu Lili 
Published: July 2020

Abstract
The innovation of the curriculum system of software engineering major has become an important part under background of new engineering currently that cannot be ignored. As a case study of Anhui Sanlian University, from the three aspects of talent training, knowledge of vocation, curriculum setting to explore the construction of curriculum system for software engineering major under background of new engineering. Finally, further work is expected in the future. Firstly, sustainable agile teaching system for competitiveness should be developed. Secondly, a local platform for innovative practice on “Five Classes” based on Outcomes-Based Education (OBE) should be established.
Controlling the electronic bands of a 2D semiconductor by force microscopy
Authors: de Araújo Daniel B , Almeida Rodrigo Q , Gadelha Andreij C , Rezende Natália P , Salomão F C C S , Silva F W N , Campos Leonardo C , Barros Eduardo B 
Published: July 2020

Abstract
In this work, we investigate the transverse transport properties of few-layers MoS2 using a Conductive Atomic Force Microscopy based technique. We find that the system changes between a low-force regime, characterized by a nearly-ideal contact between the MoS2 flake and the substrate, and a high-force regime, for which this contact starts to become highly non-ideal. We propose a 3-diode model that effectively describes the current-voltage characteristics of few-layers MoS2. From this model, we estimate how fast the energy gaps of two-dimensional MoS2 materials change as a function of the applied force. From our analysis, we estimate that MoS2-Au Schottky barrier heights change at the rate of 0.21, 0.23, and 0.78 meV nN−1 for the few-layers, three-layers, and two-layers MoS2, respectively. Our work opens up new possibilities of investigating and controlling the electronic properties of 2D semiconducting materials.
The impact of graphene nanofiller loading on the morphology and rheology behaviour of highly rigid polyurethane copolymer
Authors: Albozahid Muayad , Habeeb Salih Abbas , Ismael Alhilo Naaem A , Saiani Alberto 
Published: July 2020

AbstractThis work attempts to study the effects of the addition of graphene nanoplatelets (xGNP) on the rheology properties of new version of polyurethane copolymer with 1,5 pentane diol as chain extender , containing a high amount of hard blocks. Two- step polymerisation was employed to synthesise this kind of polymer. The thermal and electrical conductivity of this copolymer was also investigated. Meanwhile, the rheology response has been analysed by measuring the viscosity It was found that the viscosity increases by 68% and 2 × 105% at loadings of 0.5 wt.% and 15 wt.% of xGNP, respectively, compared with that of neat polyurethane copolymer. This means that the melt viscoelastic behaviour of highly rigid polyurethane copolymer (HRPUC) is influenced by the presence of xGNP contents, transforming the behaviour of nanocomposite from liquid-like to solid-like. This result was attributed to the network formation and interaction between hard segments of the HRPUC structure and xGNP due to strong shear thinning behaviour. In addition, the thermal conductivity of HRPUC increases to 0.97 W m−1.k (410%), electricity conductivity rose to 102s m−1(1000%). SEM morphology images showed overall dispersion of xGNP in the HRPUC, implying a reduction in the interspacing of flakes with increasing xGNP concentration. Further investigation into HRPUC morphology and its nanocomposites was conducted using the TEM method, illustrating that the xGNP stacking resulted from poor ability to disperse at greater loadings of xGNP.
Phytochemical-assisted biosynthesis of silver nanoparticles from Ajuga bracteosa for biomedical applications
Authors: Afreen Afshan , Ahmed Rashid , Mehboob Saadia , Tariq Muhammad , Alghamdi Huda Ahmed , Zahid Alap Ali , Ali Imran , Malik Kausar , Hasan Anwarul 
Published: July 2020

Abstract
Silver nanoparticles (AgNPs) synthesized from plant extracts are widely used for the cure of many diseases from fever to cancers. Keeping in view the medicinal value of AgNPs, here we report a cost-effective phytochemical method for the biosynthesis of silver nanoparticles from Ajuga bracteosa. A. bracteosa is an important medicinal plant used to cure fever, appetite-loss, and cancer. Silver-nanoparticles were prepared from the aqueous extract of the plant. The methanolic extract of A. bracteosa (ABMF) was separated and n-hexane (ABHF) and chloroform (ABCF) fractions were obtained from the methanolic crude extract. The AgNPs were characterized by UV-Visible spectrophotometer, FTIR, XRD, and TEM. The total phenolic contents (TPC) and total flavonoid contents (TFC) in different fractions were determined and compared with AgNPs. The medicinal value of ABMF, ABHF, ABCF, and AgNPs was evaluated by antibacterial, antioxidant, anti-inflammatory, and cytotoxicity bioassays. The UV-visible spectrum showed a peak at 484 nm while FTIR results suggested strong capping of phytochemicals on AgNPs which was confirmed by a high amount of TPC and TFC. XRD analysis depicted a high degree of crystallinity and smaller size of AgNPs. TEM results showed spherical shaped AgNPs of size range 50 ± 12 nm. The biosynthesized AgNPs showed better antibacterial activity than plant extract fractions. Similarly, AgNPs have shown better antioxidant, cytotoxicity against cancer cell lines in-vitro, and anti-inflammatory activity in-vivo than a plant extract. The great medicinal value of A. bracteosa might be due to the presence of pharmacologically active phytochemicals such as diterpenoids, neo-clerodane flavonol glycosides, ergosterol, iridoid glycosides, phytoecdysones, and other polyphenols. These phytochemicals surround the silver nanoparticles during green synthesis and therefore, this capping of phytochemicals over silver nanoparticles results in enhanced biomedical applications of plant extracts.
Hard carbons for sodium-ion batteries and beyond
Authors: Xie Fei , Xu Zhen , Guo Zhenyu , Titirici Maria-Magdalena 
Published: July 2020

Abstract
Sodium-ion batteries (SIBs) are one of the most promising alternatives to lithium-ion batteries (LIBs), due to the much more abundant resources of Na compared with Li in the world. Developing SIB technology to satisfy the increased demand for energy storage
is therefore a significant task
. However, one of the biggest bottlenecks is the design of high-performance and low-cost anode materials, since the graphite anode in commercial LIBs is not suitable for SIBs due to thermal dynamic issues. Hard carbon materials have been regarded as having the greatest potential as anodes in commercial SIBs owing to their excellent cost-effectiveness, but their relatively limited performance compared to the graphite in LIBs as well as the dimness of the sodium storage mechanisms still need further investigation. In this review, we summarize the progress of recent research into hard carbons for SIB applications, including the fundamentals of SIBs, sodium storage mechanisms, structures and the electrochemical performances of different types of hard carbons in SIBs and other types of sodium-based energy storage as well as the main challenges in this field. We aim to provide a general insight into hard carbons and their applications in SIBs, opening up future perspectives and possible research directions.
Soil microbes alter seedling performance and biotic interactions under plant competition and contrasting light conditions
Authors: Xi Nianxun , Bloor Juliette M G , Chu Chengjin 
Published: July 2020

Abstract

Background and Aims
Growing evidence suggests that the net effect of soil microbes on plants depends on both abiotic and biotic conditions, but the context-dependency of soil feedback effects remains poorly understood. Here we test for interactions between the presence of conspecific soil microbes, plant competition and light availability on tree seedling performance.

Methods
Seedlings of two congeneric tropical tree species, Bauhinia brachycarpa and Bauhinia variegata, were grown in either sterilized soil or soil conditioned by conspecific soil microorganisms in a two-phase greenhouse feedback experiment. We examined the interactive effects of soil treatment (live, sterilized), light availability (low, high) and plant competition (no competition, intraspecific and interspecific competition) on tree seedling biomass. We also investigated the linkages between the outcomes of soil feedback effects and soil microbial community structure.

Key Results
The outcomes of soil feedback effects on seedling biomass varied depending on both competition treatment and light availability. Under low light conditions, soil feedback effects were neutral irrespective of competition treatment and plant species. Soil feedback effects were negative in high light for seedlings with interspecific competition, but positive for seedlings growing alone or with intraspecific competition. Soil feedback effects for seedlings were driven by variation in the Gram-positive:Gram-negative bacteria ratio. Light and conspecific soil microbes had interactive effects on the competitive environment experienced by tree species; in low light the presence of conspecific soil microbes decreased plant competition intensity, whereas in high light both the intensity and the importance of competition increased for seedlings in the presence of soil microbes, irrespective of plant species.

Conclusions
Our findings underline the importance of light and plant competition for the outcomes of soil feedback effects on young tree seedlings, and suggest that reduced light availability may reduce the influence of conspecific soil microbes on plant–plant interactions.
Constructing Playful Talk through Translanguaging in English Medium Instruction Mathematics Classrooms
Authors: Tai Kevin W H , Wei Li 
Published: July 2020

Abstract
Recent studies on English-Medium-Instruction (EMI) classroom interaction have begun to look at the role of translanguaging as a pedagogical practice in supporting participants to exploit multilingual and multimodal resources to facilitate content teaching and learning. The present study contributes to this growing body of literature by focusing on playful talk in multiple languages and modalities in EMI mathematics classrooms in a secondary school in Hong Kong. Based on the data collected from a linguistic ethnography, we analyze how the teacher constructs playful talk in order to achieve various pedagogical goals including building rapport, facilitating content explanation and promoting meaningful communication with students. The analysis demonstrates that translanguaging appears to be a critical resource and that several social factors, including the teacher’s personal belief, history, sociocultural, and pedagogical knowledge, play a role in constructing playful talk. The playful talk transforms the classroom into a translanguaging space, which in turn allows the teacher and students to perform a range of creative acts and experiment with a variety of voices to facilitate the meaning making and knowledge construction processes.
GeoBoost2: a natural languageprocessing pipeline for GenBank metadata enrichment for virus phylogeography
Authors: Magge Arjun , Weissenbacher Davy , O’Connor Karen , Tahsin Tasnia , Gonzalez-Hernandez Graciela , Scotch Matthew 
Published: July 2020

Abstract

Summary
We present GeoBoost2, a natural language-processing pipeline for extracting the location of infected hosts for enriching metadata in nucleotide sequences repositories like National Center of Biotechnology Information’s GenBank for downstream analysis including phylogeography and genomic epidemiology. The increasing number of pathogen sequences requires complementary information extraction methods for focused research, including surveillance within countries and between borders. In this article, we describe the enhancements from our earlier release including improvement in end-to-end extraction performance and speed, availability of a fully functional web-interface and state-of-the-art methods for location extraction using deep learning.

Availability and implementation
Application is freely available on the web at https://zodo.asu.edu/geoboost2. Source code, usage examples and annotated data for GeoBoost2 is freely available at https://github.com/ZooPhy/geoboost2.

Supplementary information
Supplementary data are available at Bioinformatics online.
Single-sequence and profile-based prediction of RNA solvent accessibility using dilated convolutional neural network
Authors: Hanumanthappa Anil Kumar , Singh Jaswinder , Paliwal Kuldip , Singh Jaspreet , Zhou Yaoqi 
Published: July 2020

Abstract

Motivation
RNA solvent accessibility, similar to protein solvent accessibility, reflects the structural regions that are accessible to solvents or other functional biomolecules, and plays an important role for structural and functional characterization. Unlike protein solvent accessibility, only a few tools are available for predicting RNA solvent accessibility despite the fact that millions of RNA transcripts have unknown structures and functions. Also, these tools have limited accuracy. Here, we have developed RNAsnap2 that uses a dilated convolutional neural network with a new feature, based on predicted base-pairing probabilities from LinearPartition.

Results
Using the same training set from the recent predictor RNAsol, RNAsnap2 provides an 11% improvement in median Pearson Correlation Coefficient (PCC) and 9% improvement in mean absolute errors for the same test set of 45 RNA chains. A larger improvement (22% in median PCC) is observed for 31 newly deposited RNA chains that are non-redundant and independent from the training and the test sets. A single-sequence version of RNAsnap2 (i.e. without using sequence profiles generated from homology search by Infernal) has achieved comparable performance to the profile-based RNAsol. In addition, RNAsnap2 has achieved comparable performance for protein-bound and protein-free RNAs. Both RNAsnap2 and RNAsnap2 (SingleSeq) are expected to be useful for searching structural signatures and locating functional regions of non-coding RNAs.

Availability and implementation
Standalone-versions of RNAsnap2 and RNAsnap2 (SingleSeq) are available at https://github.com/jaswindersingh2/RNAsnap2. Direct prediction can also be made at https://sparks-lab.org/server/rnasnap2. The datasets used in this research can also be downloaded from the GITHUB and the webserver mentioned above.

Supplementary information
Supplementary data are available at Bioinformatics online.
Hypertensive nephropathy: a major roadblock hindering the advance of precision nephrology
Authors: Carriazo Sol , Vanessa Perez-Gomez Maria , Ortiz Alberto 
Published: July 2020

Abstract
In the 2017 Annual Report of the ERA-EDTA Registry, hypertension continues to be the second or third most common cause of renal replacement therapy (RRT) in Europe, tied with glomerulonephritis. There is, however, one little issue: hypertension-induced end-stage renal disease (ESRD) might not exist at all as currently understood, that is, as hypertensive nephrosclerosis. In this regard, the incidence of RRT due to hypertensive nephropathy is related to the incidence of other causes of ESRD but not to the burden of hypertension per country. The current definition of hypertensive nephropathy is non-specific, outdated and only allows a delayed diagnosis by exclusion. It is not helpful that 80% of chronic kidney disease patients develop hypertension and kidney biopsy has no findings specific for hypertensive nephropathy. There is an urgent need to redefine the concept of hypertensive nephropathy with a clear and comprehensive set of criteria that at least should indicate how other nephropathies, including familial nephropathies, should be excluded. Correct causality assessment and aetiology-based therapy is a key to the progress of nephrology and it should no longer be accepted that ‘hypertensive nephropathy’ serves to disguise a suboptimal diagnostic workup. A diagnosis of nephropathy of unknown cause would be more honest when the full range of alternative aetiological diagnoses is not explored.
Diet Recommendations for Hospitalized Patients With Inflammatory Bowel Disease: Better Options Than Nil Per Os
Authors: Palchaudhuri Sonali , Albenberg Lindsey , Lewis James D 
Published: July 2020

Abstract
Hospitalizations are a time when providers often have uncertainty about what to feed patients with inflammatory bowel disease (IBD). While there are many trials evaluating the role of diet in the management of IBD, the role of diet for the hospitalized patient is less clear. The hospitalization may serve as an opportunity to educate patients about the role of diet, try different diets, and develop dietary recommendations for after discharge. Here, we review the literature for dietary considerations during hospitalizations and acute settings, as well as upon discharge. Patients with IBD benefit from screening and nutritional support for malnutrition and nutritional deficiencies. Enteral nutrition and exclusion diets are promising as induction and maintenance therapies, but no specific recommendations during hospitalization for adult patients are available currently. There are very few reasons to enforce bowel rest or clear liquids other than bowel obstruction, uncontrolled sepsis, or need for urgent or emergent surgery; most patients—including many with penetrating or stricturing disease—benefit from feeding in whichever capacity is tolerated, with enteral and parenteral nutrition used as needed to reach nutritional goals. Future studies are needed to define how the use of different diets can influence the outcomes of patients hospitalized for IBD.
Left atrial structure and function among different subtypes of atrial fibrillation: an echocardiographic substudy of the AMIO-CAT trial
Authors: Olsen Flemming Javier , Darkner Stine , Chen Xu , Pehrson Steen , Johannessen Arne , Hansen Jim , Gislason Gunnar , Svendsen Jesper Hastrup , Biering-Sørensen Tor 
Published: July 2020

Abstract

Aims
Little is known about cardiac structure and function among atrial fibrillation (AF) subtypes; paroxysmal AF vs. persistent AF (PxAF), and across AF burden. We sought to assess differences in left atrial (LA) measures by AF subtype and burden.

Methods and results
This was a cross-sectional echocardiographic substudy of a randomized trial of AF patients scheduled for catheter ablation. Patients had an echocardiogram performed 0–90 days prior to study inclusion. We performed conventional echocardiographic measures, left ventricular (LV) and LA speckle tracking. Measures were compared between AF subtype and burden (0%, 0–99%, and 99–100%) determined by 72-h Holter monitoring. Of 212 patients, 107 had paroxysmal AF and 105 had PxAF. Those with PxAF had significantly reduced systolic function (LV ejection fraction: 48% vs. 53%; P &lt; 0.001), larger end-systolic and end-diastolic LA volumes (LAVi and LAEDVi), reduced LA emptying fraction (LAEF: 29% vs. 36%, P &lt; 0.001), and reduced LA strain (LAs) (LAs: 20% vs. 26%, P &lt; 0.001). LA measures remained significantly lower in PxAF after multivariable adjustments. All LA measures and measures of systolic function were significantly impaired in patients with 99–100% AF burden, whereas all measures were similar between the other groups (LAVi: 40mL/m2 vs. 33mL/m2 vs. 34mL/m2; LAEDVi: 31mL/m2 vs. 21mL/m2 vs. 22mL/m2, LA emptying fraction: 23% vs. 35% vs. 36%, LAs: 16% vs. 25% vs. 25%, for 99–100%, 0–99%, and 0% AF, respectively, P &lt; 0.001 for all). These differences were consistent after multivariable adjustments.

Conclusion
LA mechanics differ between AF subtype and burden and these characteristics influence the clinical interpretation of these measures.