bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of urban development on change in microclimatic parameters of urbanized area
Authors: Bulgakov A , Skobeleva E 
Published: April 2021

Abstract
The expediency of quantitative analysis of safety and comfort of the spatial environment when creating master plans of cities was shown by the authors. Predictable thermal comfort should be considered here as one of the significant indicators of the environmental safety of the routes from places of residence to socially significant facilities and recreational zones. It is suggested to use thermal indexes adapted for the conditions of open urban spaces to consider the influence of climatic variables totality on the person’s thermal sensation. The physiologically effective temperature (PET) is one such index. This model takes visceral temperature, perspiration rate, the moisture of the skin, and on the other hand the meteorological parameters, including the influence of urban area conditions on them. Criteria values of PET for the middle zone of Russia are determined on the basis of bioclimatic estimation of the territory according to air temperature, cloudiness and wind speed. The authors determined experimentally the parameters of the urban microclimate.
Exploring the potential for organic and more environmentally friendly plastics in the building industry
Authors: Chitonu G C , Cazacu C E 
Published: April 2021

Abstract
Modern building techniques, materials and methods open possibilities for rediscovery and new applications of organic and more environmentally friendly solutions in multiple sectors of the building industry. As more scientists and engineers are looking at sustainable resources, the possibilities for managing the potential weaknesses of making more environmentally friendly building and product materials are bringing new materials and methods to the market at a rapid pace. The new biodegradable solutions are looking into natural fibres, or crops and wood. Hemp-based materials are already well re-established in multiple environmentally friendly products in the building industry. Hemp-lime, hemp insulation or hemp plastics are materials with low carbon footprint which are successfully being used in construction, replacing successfully non-renewable building materials. In cars, the BMW i3 has for several years featured hemp and kenaf, and Hunton Nativo wood fibre insulation is another example from the building industry of how renewable climate friendly materials can easily replace non-renewable materials. This article aims to highlight some existing solutions, and possible improvements to products in the building industry.
Aspects regarding the extension and consolidation of a house located on a sloping plot of land
Authors: Deaconu O 
Published: April 2021

Abstract
When the land available for a construction is in slope, with a high degree, there can be a series of problems related to geotechnical data and execution difficulties, considering the foundations and the structure itself. The grade of difficulty is considerably increased when an extension or attic is intended to be design and build. The paper is presenting some considerations to this problem, taken into account a study case – extension of an existing structure for a family house.
Influence of the input frequency for soundness evaluation of concrete structure based on waveform analysis
Authors: Ikebata K , Kobayashi Y , Oda K , Nakamura K 
Published: April 2021

Abstract
In the soundness evaluation method based on waveform analysis in time domain, the response waveforms that are measured while the target is in sound condition is indispensable. Therefore, it is expected that this method is for the evaluation of precast concrete products because the state of the products is almost identical and it is able to measure the response waveforms before using the products. On the other hand, although there are difficulties to apply this method for the evaluation of the existing structures because the response waveform is not measured before using, it is expected that this method can be applied to the evaluation of the existing structures by making the response waveform on the basis of the numerical simulation. The computational conditions should be set properly based on the actual measurement conditions for the numerical simulation. Among the computational conditions, the input frequency is determined based on the diameter of the steel ball and contact time if the excitation is given by making an impact with the steel ball by using the theory proposed by Sansalone et al. However, Kubo et al. reported that the measured contact time is different from the theoretical value and the difference reaches maximum twice. The influence of the difference would not be negligible for the soundness evaluation and should be considered carefully to perform the soundness evaluation accurately. Therefore, in this study, the response waveforms are computed on a numerical model with excitations of various input frequencies, and the influence of the input frequency to the response waveform is discussed by comparing the computed response waveforms.
The study on stability of composite panel structure under axial compression load
Authors: Jiang J , Chen C , Zhang X , Yang Z 
Published: April 2021

Abstract
The axial compressive load test and finite element simulation are made to study the mechanical properties of aircraft stiffened composite panel. Firstly, the numerical simulation model of composite stiffened panel structure is constructed, the accuracy and feasibility of the simulation model are verified by calculating the value of MAC (Modal Assurance Criterion) between the computational free modal and experimental free modal. Then, the nonlinear post-buckling numerical simulation is carried out to extract the buckling load, the post-buckling load path and the failure load. Then, the axial compression test of the panel structure is carried out by the testing machine, and the load-displacement curve and the load-strain curve of the loading position are obtained. Finally, the correctness of the analysis method is proved by comparing the numerical simulation value with the experimental analysis value. The experimental research method of the mechanical properties of the composite stiffened panel under axial load is explored, which can be used as a reference for the study of the bearing capacity of the stiffened panel.
Evaluation of the quality of the road infrastructure with the photogrammetry technique
Authors: Popa V , Năstase G , Dragomir G , Brezeanu A , Şerban A 
Published: April 2021

Abstract
Solutions that are integrating different modern techniques related to a new or an existing road, using non-destructive test brings several advantages which the content of the article highlights. Comparing the current method used in the road technique AND 540 and the aerial scanning techniques, the main element that stands out is the speed of accomplishing an ample work which consists in the 3D processing much faster and more accurately. The article presents a short current stage of these applications in the field of civil engineering. Creating 3D surfaces that it compares with what it was initially and also processing registered the deformations and displacements. A case study of a road sector is also presented to highlight everything that this technique brings.
Reactive power compensation in the railway electrical traction system, using synchronous machines controlled by SCADA
Authors: Popov A F , Fratu M 
Published: April 2021

Abstract
This article brings forward a solution for compensating the reactive power of the railway electrical traction system. Using the V-characteristics of the synchronous machine, reactive power can be produced or absorbed from the power supply network, keeping the power factor at a value as close to 1 as possible. Given that the load consumed by the railway electrical traction system is variable, it is necessary to be able to promptly correct the power factor. The SCADA system will change the synchronous machine’s operating characteristics relative as a function of the angle between the voltage and the current that are set at a given time by the consumers (electrical locomotives) passing through the railway section. By compensating the reactive power, the amount of active power supplied to the electrical network of the railway traction system is increased, without the need to modify the cross-section of the electrical conductors.
Reasons for the collapse of ceilings during the construction of monolithic buildings
Authors: Tomakov M V , Pykhtin A I , Tomakov V I , Tomakova I A 
Published: April 2021

Abstract
Construction works, as a rule, differ in complexity and hazards of works. Nowadays, cases of collapses of a formwork of the cast concrete section of a building under construction in the course of concreting became frequent. Accidents entail death of people and significant material losses. Purpose of the research: the purpose of the research is to study accidents occurred during installation of in-situ concrete floors of buildings and to reveal the typical causes of a formwork system collapse. The initial materials were the data on the causes of accidents at construction sites obtained on the basis of the analysis of statistical materials on injuries, as well as data on the identified violations of the requirements for safe work practices in capital construction and reconstruction of buildings and structures. A total of 148 accidents at construction sites from 1997 to 2019 were considered. The paper systematizes some main errors and violations of technologies committed in the course of in-situ concrete works. Typical causes common for all formwork collapses during concrete works for in-situ floor slabs installation are revealed. Among the objective causes of accidents and high injury rate in this type of construction works the following should be highlighted: the lack of method statements and construction plans; lack of supervision of the correct and safe execution of works; shortcomings in the organization of training and testing of labor protection knowledge; violation of technological regulations and safety rules.
The impact of the decreasing number of users on the evolution of a centralized heating system
Authors: Vitan E , Rus T , Hotupan A , Cilibiu C 
Published: April 2021

Abstract
The paper presents an analysis of a centralized heating system located in a city in the west-central part in Romania. We examined the last 15 years of functioning of the system from a technical and economic point of view. One of the main factors that led to the inefficiency of this system, and in the end to collapse, was the reduction of the system’s thermal efficiency due to the decrease of customers over time. In conclusion, we highlighted the necessity of a periodic diagnosis of system’s efficiency and a risk analysis to avoid economic problems and collapse.
Titanium Dioxide Incorporated Polyamide Thin Film Composite Photocatalytic Membrane for Bisphenol A Removal
Authors: Syahida Mat Anan Noor , Jaafar Juhana , Sato Shuichi , Mohamud Rohimah 
Published: April 2021

Abstract
Polyamide thin film composite immobilized with TiO2 is prepared using M-phenylene diamine and Trimesoyl chloride via interfacial polymerization. To determine the characteristics and performance of the membranes, effect of TiO2 loading is studied. 2 (w/v) % of MPD solution and 0.2 (w/v) % of TMC/n-hexane solution were used to prepare PA TFC membrane with different amount of TiO2 loading (0 wt. %, 0.1 wt. %, 0.2 wt. %, 0.3 wt. %, 0.4 wt. % and 0.5 wt. %).PA/TiO2 composite membranes are characterized by FESEM, EDX, FTIR and water contact angle. The properties of the membranes have improved upon TiO2 loading. With over 90% of BPA rejection exhibited by all the fabricated membranes, it is proved that the membranes especially PA/TiO2 TFC membrane with 0.4 wt. % TiO2 (with the highest rejection and degradation value of 99.9% and 14% respectively) are potentially employed as the hybrid photocatalytic membrane for BPA removal.
Retraction: Reconstruction of Cyber and Physical Software Using Novel Spread Method (IOP Conf. Ser.: Mater. Sci. Eng.
322 052010)
Authors: Ma Wubin , Deng Su , Huang Hongbin 
Published: April 2021

IOP Publishing Limited ("IOPP") is retracting this paper following an investigation which revealed that sections of the manuscript are computer generated. IOP Publishing is investigating why this was not identified during the submission and peer review process by the conference. As a member of the Committee for Publication Ethics (COPE) this has been investigated in accordance with COPE guidelines and it was agreed the article should be retracted.

IOPP expresses its thanks to the independent advisors who have shared their thoughts regarding this paper during the course of the investigation.

The authors disagree with this retraction.
Retraction published: 27 April 2021
Retraction: An Novel Architecture of Large-scale Communication in IOT (IOP Conf. Ser.: Mater. Sci. Eng.
322 052057)
Authors: Ma Wubin , Deng Su , Huang Hongbin 
Published: April 2021

IOP Publishing Limited ("IOPP") is retracting this paper following an investigation which revealed that sections of the manuscript are computer generated. IOP Publishing is investigating why this was not identified during the submission and peer review process by the conference. As a member of the Committee for Publication Ethics (COPE) this has been investigated in accordance with COPE guidelines and it was agreed the article should be retracted.
IOPP expresses its thanks to the independent advisors who have shared their thoughts regarding this paper during the course of the investigation.
The authors disagree with this retraction.
Retraction published: 27 April 2021
The hybrid topological longitudinal transmon qubit
Authors: Dinerstein Alec , Gorham Caroline S , Dumitrescu Eugene F 
Published: April 2021

Abstract
We introduce a new hybrid qubit consisting of a Majorana qubit interacting with a transmon longitudinally coupled to a resonator. To do so, we equip the longitudinal transmon qubit with topological quasiparticles, supported by an array of heterostructure nanowires, and derive charge- and phase-based interactions between the Majorana qubit and the resonator and transmon degrees of freedom. Inspecting the charge coupling, we demonstrate that the Majorana self-charging can be eliminated by a judicious choice of charge offset, thereby maintaining the Majorana degeneracy regardless of the quasiparticles spatial arrangement and parity configuration. We perform analytic and numerical calculations to derive the effective qubit–qubit interaction elements and discuss their potential utility for state readout and quantum error correction. Further, we find that select interactions depend strongly on the overall superconducting parity, which may provide a direct mechanism to characterize deleterious quasiparticle poisoning processes.
Finite dimensional semigroups of unitary endomorphisms of standard subspaces
Authors: Neeb Karl-H. 
Published: April 2021

LetV\mathtt {V}be a standard subspace in the complex Hilbert spaceH\mathcal {H}andGGbe a finite dimensional Lie group of unitary and antiunitary operators onH\mathcal {H}containing the modular group(ΔVit)t∈R(\Delta _{\mathtt {V}}^{it})_{t \in \mathbb {R}}ofV\mathtt {V}and the corresponding modular conjugation JVJ_{\mathtt {V}}. We study the semigroup\[SV={g∈G∩U⁡(H):gV⊆V}S_{\mathtt {V}} = \{ g\in G \cap \operatorname {U}(\mathcal {H})\colon g\mathtt {V} \subseteq \mathtt {V}\}\]and determine its Lie wedgeL⁡(SV)={x∈g:exp⁡(R+x)⊆SV}\operatorname {\textbf {L}}(S_{\mathtt {V}}) = \{ x \in \mathfrak {g} \colon \exp (\mathbb {R}_+ x) \subseteq S_{\mathtt {V}}\}, i.e., the generators of its one-parameter subsemigroups in the Lie algebrag\mathfrak {g}of GG. The semigroupSVS_{\mathtt {V}}is analyzed in terms of antiunitary representations and their analytic extension to semigroups of the formGexp⁡(iC)G \exp (iC), whereC⊆gC \subseteq \mathfrak {g}is anAd⁡(G)\operatorname {Ad}(G)-invariant closed convex cone.

Our main results assert that the Lie wedgeL⁡(SV)\operatorname {\textbf {L}}(S_{\mathtt {V}})spans a33-graded Lie subalgebra in which it can be described explicitly in terms of the involutionτ\tauofg\mathfrak {g}induced byJVJ_{\mathtt {V}}, the generatorh∈gτh \in \mathfrak {g}^\tauof the modular group, and the positive cone of the corresponding representation. We also derive some global information on the semigroupSVS_{\mathtt {V}}itself.
Enhanced bioproduction of fucosylated oligosaccharide 3-fucosyllactose in engineered Escherichia coli with an improved de novo pathway
Authors: Ni Zhijian , Wu Jinyong , Li Zhongkui , Yuan Lixia , Wang Yu , Chen Xiangsong , Yao Jianming 
Published: April 2021

ABSTRACT
3-fucosyllactose (3-FL) and 2'-fucosyllactose (2'-FL), are two important fucosylated oligosaccharides in human milk. Extensive studies on 2'-FL enabled its official approval for use in infant formula. However, development of 3-FL has been somewhat sluggish due to its low content in human milk and poor yield in enlarged production. Here, an α-1,3-fucosyltransferase mutant was introduced into an engineered Escherichia coli (E. coli) capable of producing GDP-L-fucose, leading to a promising 3-FL titer in a 5.0-L bioreactor. To increase the availability of cofactors (NADPH and GTP) for optimized 3-FL production, zwf, pntAB, and gsk genes were successively overexpressed, finally resulting in a higher 3-FL level with a titer of 35.72 g/L and a yield of 0.82 mol 3-FL/mol lactose. Unexpectedly, the deletion of pfkA gene led to a much lower performance of 3-FL production than the control strain. Still, our strategy achieved the highest 3-FL level in E. coli to date.
JEDI: circular RNA prediction based on junction encoders and deep interaction among splice sites
Authors: Jiang Jyun-Yu , Ju Chelsea J -T , Hao Junheng , Chen Muhao , Wang Wei 
Published: April 2021

Abstract

Motivation
Circular RNA (circRNA) is a novel class of long non-coding RNAs that have been broadly discovered in the eukaryotic transcriptome. The circular structure arises from a non-canonical splicing process, where the donor site backspliced to an upstream acceptor site. These circRNA sequences are conserved across species. More importantly, rising evidence suggests their vital roles in gene regulation and association with diseases. As the fundamental effort toward elucidating their functions and mechanisms, several computational methods have been proposed to predict the circular structure from the primary sequence. Recently, advanced computational methods leverage deep learning to capture the relevant patterns from RNA sequences and model their interactions to facilitate the prediction. However, these methods fail to fully explore positional information of splice junctions and their deep interaction.

Results
We present a robust end-to-end framework, Junction Encoder with Deep Interaction (JEDI), for circRNA prediction using only nucleotide sequences. JEDI first leverages the attention mechanism to encode each junction site based on deep bidirectional recurrent neural networks and then presents the novel cross-attention layer to model deep interaction among these sites for backsplicing. Finally, JEDI can not only predict circRNAs but also interpret relationships among splice sites to discover backsplicing hotspots within a gene region. Experiments demonstrate JEDI significantly outperforms state-of-the-art approaches in circRNA prediction on both isoform level and gene level. Moreover, JEDI also shows promising results on zero-shot backsplicing discovery, where none of the existing approaches can achieve.

Availability and implementation
The implementation of our framework is available at https://github.com/hallogameboy/JEDI.

Supplementary information
Supplementary data are available at Bioinformatics online.
‘Single-subject studies’-derived analyses unveil altered biomechanisms between very small cohorts: implications for rare diseases
Authors: Aberasturi Dillon , Pouladi Nima , Zaim Samir Rachid , Kenost Colleen , Berghout Joanne , Piegorsch Walter W , Lussier Yves A 
Published: April 2021

AbstractMotivationIdentifying altered transcripts between very small human cohorts is particularly challenging and is compounded by the low accrual rate of human subjects in rare diseases or sub-stratified common disorders. Yet, single-subject studies (S3) can compare paired transcriptome samples drawn from the same patient under two conditions (e.g. treated versus pre-treatment) and suggest patient-specific responsive biomechanisms based on the overrepresentation of functionally defined gene sets. These improve statistical power by: (i) reducing the total features tested and (ii) relaxing the requirement of within-cohort uniformity at the transcript level. We propose Inter-N-of-1, a novel method, to identify meaningful differences between very small cohorts by using the effect size of ‘single-subject-study’-derived responsive biological mechanisms.ResultsIn each subject, Inter-N-of-1 requires applying previously published S3-type N-of-1-pathways MixEnrich to two paired samples (e.g. diseased versus unaffected tissues) for determining patient-specific enriched genes sets: Odds Ratios (S3-OR) and S3-variance using Gene Ontology Biological Processes. To evaluate small cohorts, we calculated the precision and recall of Inter-N-of-1 and that of a control method (GLM+EGS) when comparing two cohorts of decreasing sizes (from 20 versus 20 to 2 versus 2) in a comprehensive six-parameter simulation and in a proof-of-concept clinical dataset. In simulations, the Inter-N-of-1 median precision and recall are &gt; 90% and &gt;75% in cohorts of 3 versus 3 distinct subjects (regardless of the parameter values), whereas conventional methods outperform Inter-N-of-1 at sample sizes 9 versus 9 and larger. Similar results were obtained in the clinical proof-of-concept dataset.Availability and implementationR software is available at Lussierlab.net/BSSD.
Predicting MHC-peptide binding affinity by differential boundary tree
Authors: Feng Peiyuan , Zeng Jianyang , Ma Jianzhu 
Published: April 2021

Abstract

Motivation
The prediction of the binding between peptides and major histocompatibility complex (MHC) molecules plays an important role in neoantigen identification. Although a large number of computational methods have been developed to address this problem, they produce high false-positive rates in practical applications, since in most cases, a single residue mutation may largely alter the binding affinity of a peptide binding to MHC which cannot be identified by conventional deep learning methods.

Results
We developed a differential boundary tree-based model, named DBTpred, to address this problem. We demonstrated that DBTpred can accurately predict MHC class I binding affinity compared to the state-of-art deep learning methods. We also presented a parallel training algorithm to accelerate the training and inference process which enables DBTpred to be applied to large datasets. By investigating the statistical properties of differential boundary trees and the prediction paths to test samples, we revealed that DBTpred can provide an intuitive interpretation and possible hints in detecting important residue mutations that can largely influence binding affinity.

Availability and implementation
The DBTpred package is implemented in Python and freely available at: https://github.com/fpy94/DBT.

Supplementary information
Supplementary data are available at Bioinformatics online.