bluuebunny/crossref_metadata_2025_split huggingface dataset:
High‐Energy Nickel‐Cobalt‐Aluminium Oxide (NCA) Cells on Idle: Anode‐ versus Cathode‐Driven Side Reactions
Authors: Zülke Alana , Li Yi , Keil Peter , Burrell Robert , Belaisch Sacha , Nagarathinam Mangayarkarasi , Mercer Michael P. , Hoster Harry E. 
Published: March 2021

AbstractWe report on the first year of calendar ageing of commercial high‐energy 21700 lithium‐ion cells, varying over eight state of charge (SoC) and three temperature values. Lithium‐nickel‐cobalt‐aluminium oxide (NCA) and graphite with silicon suboxide (Gr‐SiOx) form cathodes and anodes of those cells, respectively. Degradation is fastest for cells at 70–80 % SoC according to monthly electrochemical check‐up tests. Cells kept at 100 % SoC do not show the fastest capacity fade but develop internal short circuits for temperatures T≥40 °C. Degradation is slowest for cells stored close to 0 % SoC at all temperatures. Rates of capacity fade and their temperature dependencies are distinctly different for SoC values below and above 60 %, respectively. Differential voltage analyses, apparent activation energy analysis, and endpoint slippage tracking provide useful insights into the degradation mechanisms and the respective roles of anode and cathode potential. We discuss how reversible losses of lithium might play a role in alleviating the rate of irreversible losses on commercial cells.
Optimization of glycerol consumption in wild‐type Escherichia coli using central carbon modeling as an alternative approach
Authors: Rangel Albert Enrique Tafur , Reyes Luis H , Ramírez Jorge Mario Gómez , Barrios Andrés Fernando Gónzalez 
Published: March 2021

AbstractThe development of a culture medium is an essential step in any bioprocess involving microorganisms for the bioconversion of by‐products to valuable chemicals, making industries like the biofuel industry more competitive. Optimization of the bioconversion process to minimize cost while maximizing yield underscores the importance of using computational methods to identify cellular requirements under specific growth conditions. In this study, a computational approach was proposed as an alternative to optimizing glycerol consumption in one of the most common production chassis, Escherichia coli, specifically strain ATCC 8739. Nineteen compounds were identified as essential for E. coli growth in glycerol. Of these, three reactions associated with nitrogen, phosphorous, and oxygen availability were determined as crucial to reaching high growth and glycerol uptake rates. Based on computational results, a glycerol‐based medium was supplemented with reported common chemical compounds that contain nitrogen or phosphorous (NH4Cl, Na2HPO4, and K2HPO4) for further experimental validation. When comparing the supplemented culture medium experimentally with LB medium (Luria Bertani), a two‐fold increment in the glycerol consumption was observed. Transcriptomic analysis of the most promising culture medium reveals that high glycerol utilization under aerobic conditions is dependent on phosphorus to avoid toxicity within the cell because of glycerol‐3‐phosphate generation. The result of this study is a resource to determine nutritional requirements that allow the improvement of the use of raw material for the production of compounds that are attractive to the bio‐based industry. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd
Framing the evolution of the corporate social responsibility and environmental management journal
Authors: Wu Yihua , Farrukh Muhammad , Raza Ali , Meng Fanchen , Alam Imtiaz 
Published: March 2021

AbstractThis study presents a bibliometric analysis of Corporate Social Responsibility and Environmental Management (CSREM) covering the period from 2003 to 2020. Data for the analysis is drawn from the Scopus database. The analysis of 875 publications reflects an admirable pursuit for intellectual excellence by the journal. It is starting with five citations in 2003; the journal has earned 6434 citations during the year 2020. Over the last 18 years, the journal has accumulated 22,770 citations. The paper provides an in‐depth insight into what has been achieved by the journal by analyzing bibliographic mapping of knowledge, intellectual structure of publications, contributions by universities, countries, and authors using bibliographic coupling (BC), co‐citations, and co‐occurrence (CC) methods. As the first retrospection of the journal, the study would be of interest to the readers, contributors, and the editorial board, as it offers inputs for future research.
Abnormal retinal capillary blood flow in autosomal dominant Alzheimer's disease
Authors: Singer Maxwell B. , Ringman John M. , Chu Zhongdi , Zhou Xiao , Jiang Xuejuan , Shahidzadeh Anoush , Wang Ruikang K. , Kashani Amir H. 
Published: March 2021

AbstractIntroductionThis study characterizes retinal capillary blood flow in subjects with autosomal dominant Alzheimer's disease (ADAD)‐causing mutations.MethodsCarriers of PSEN1 or APP mutations were prospectively recruited and split into early‐stage (ES) and late‐stage (LS) groups. Controls were normal subjects and non‐carriers from the at‐risk group. Capillary blood flow was quantified using an optical coherence tomography angiography‐based measure of erythrocyte flux through capillary segments. Statistical analyses were adjusted for correlation between two eyes of the same subject.ResultsES carriers had significantly greater capillary blood flow than controls and LS carriers. ES and LS carriers had significantly greater capillary blood flow heterogeneity than controls. There was no difference between capillary blood flow of LS carriers and controls.DiscussionES ADAD carriers demonstrate increased retinal capillary blood flow and flow heterogeneity compared to controls. These findings support the hypothesis that increased perfusion is a pathophysiologic feature of presymptomatic stages of ADAD.
COVID‐19 guidelines for pregnant women and new mothers: A systematic evidence review
Authors: DiLorenzo Madeline A. , O’Connor Sarah K. , Ezekwesili Caroline , Sampath Spoorthi , Zhao Molly , Yarrington Christina , Pierre Cassandra 
Published: March 2021

AbstractBackgroundNearly a year after COVID‐19 was initially detected, guidance for pregnant and new mothers remains varied.ObjectiveThe goal of this systematic review is to summarize recommendations for three areas of maternal and fetal care—breastfeeding, post‐partum social distancing, and decontamination.Search strategyWe searched PubMed, Embase and Web of Science spanning from inception to November 9, 2020.Selection criteriaArticles were included if they focused on COVID‐positive mothers, commented on at least one of the three areas of interest, and were published in English.Data collection and analysisOur combined database search yielded 385 articles. After removing duplicates and articles that did not cover the correct populations or subject matter, a total of 74 articles remained in our analysis.Main resultsMost articles recommended direct breastfeeding with enhanced precaution measures. Recommendations regarding post‐partum social distancing varied, although articles published more recently often recommended keeping the mother and newborn in the same room when possible. Decontamination recommendations emphasized mask wearing, good hand hygiene, and proper cleaning of surfaces.ConclusionIn general, there was a focus on shared decision making when approaching topics such as breastfeeding and post‐partum social distancing. Guidelines for decontamination were fairly uniform.
Performance characteristics of the Mindray chemiluminescence anti‐Müllerian hormone assay
Authors: Zhao Jing‐Jing , Kang Chun‐Min , Zhang Peng , Zheng Lei 
Published: March 2021

AbstractBackgroundThe aim of this study was to define the performance characteristics of the Mindray chemiluminescence assay for anti‐Müllerian hormone (AMH) detection.Designs and methodsIntra‐assay and total imprecision, analytical sensitivity, linearity, and interference were compared between the Mindray and Roche assays using pools of human serum according to Clinical and Laboratory Standards Institute protocols. Additionally, male and female reference intervals were established using serum specimens collected from otherwise healthy groups and patients with polycystic ovary syndrome (PCOS).ResultsThe intra‐assay and total imprecision percent coefficients of variation for low and high AMH serum levels were 2.74%/ 3.01% and 5.41%/5.35% respectively. The limits of blank, detection, and quantitation were 0.007, 0.01, and 0.03 ng/ml, respectively. The assay displayed good linearity over the range of 0.01–23 ng/ml. The coefficient of determination (R2) of the Mindray versus Roche assays was 0.9713 with 411 samples with AMH concentrations ranging from 0.014 to 22.1 ng/ml. The slope and intercept of the regression equation were 0.9687 and 0.3419, respectively. There was no significant interference from triglycerides (up to 3000 mg/dl), bilirubin (up to 50 mg/dl), hemoglobin (up to 500 mg/dl), or total protein (up to 10 g/dl). Reference intervals showed the expected decrease in serum AMH levels with age in healthy women and increased levels in women with PCOS.ConclusionThe Mindray AMH assay demonstrated acceptable analytical performance under routine conditions and is suitable for determining AMH levels in serum samples.
Religiosity and the realisation of fertility intentions: A comparative study of eight European countries
Authors: Buber‐Ennser Isabella , Berghammer Caroline 
Published: March 2021

AbstractPrevious studies have consistently shown that religious persons both intend and have more children than their non‐religious peers. However, it is yet unknown whether their higher number of children entirely reflects their higher intentions or whether religious persons also realise their intentions more often than non‐religious individuals. By including different geographical regions—four countries from Western Europe and four countries from Central and Eastern Europe—this study focuses on short‐term fertility intentions and their realisation over 3 years. Our study, which is mainly informed by the Theory of Planned Behaviour, compares three groups, based on two panel waves from the Generations and Gender Survey (2002–2013 and 2006–2016): Christians who regularly attend church services, nominal Christians, and non‐affiliated persons. The results confirm that practising Christians generally intend and have more children than nominal Christians and non‐affiliated persons. Effects are much stronger in Western than in Central and Eastern Europe. However, we find only weak significant differences in realising childbearing intentions by religiosity. This is in line with the theoretical assumption that obstacles to childbearing are already considered in the formation of fertility intentions.
Remote embedded devices test framework on the cloud
Authors: Choi Il‐Seok (Benjamin) , Jeong Chang‐Sung 
Published: March 2021

SummaryEmbedded systems have high coupling and dependency among different hardware and software components in heterogeneous layers, which makes location and issue tracking in their testing difficult. Despite these poor verification conditions, even the most important reliability quality verification among embedded system characteristics is verified with insufficient sample size, typical test cases, and general test strategies, following limitations such as development costs and scheduling. As a result, shipments are highly likely to lead to various reliability quality problems because items have not been verified considering reliability quality characteristics. Hence, to address this gap, this study developed remote embedded device test framework on the cloud (RED‐TFC), which has an innovative reliability test manager component that can automatically perform various tests for the evaluation of reliability and performance of distributed shared devices by utilizing the cloud concept. RED‐TFC offers two key enhancements over existing testing services: (i) the adaptive sample scale for reliability test (ASRT), a feature that identifies the most appropriate sample size for performing functionality and reliability tests of remote verification targets connected to the RED‐TFC server; and (ii) the mass sample reliability test (MSRT), which uses a test case that is specific to reliability, with the sample size obtained by ASRT, to perform verification following the Markov prediction process. This paper analyses two Android smartphone models considered the most generic examples, including many embedded components, and presents a method of detecting a high number of reliability problems in smartphones using the proposed RED‐TFC and its implications.
Singular BPS boundary conditions in $$ \mathcal{N} $$ = (2, 2) supersymmetric gauge theories
Authors: Okazaki Tadashi , Smith Douglas J. 
Published: March 2021

Abstract
We derive general BPS boundary conditions in two-dimensional $$ \mathcal{N} $$
N
= (2, 2) supersymmetric gauge theories. We analyze the solutions of these boundary conditions, and in particular those that allow the bulk fields to have poles at the boundary. We also present the brane configurations for the half- and quarter-BPS boundary conditions of the $$ \mathcal{N} $$
N
= (2, 2) supersymmetric gauge theories in terms of branes in Type IIA string theory. We find that both A-type and B-type brane configurations are lifted to M-theory as a system of M2-branes ending on an M5-brane wrapped on a product of a holomorphic curve in ℂ2 with a special Lagrangian 3-cycle in ℂ3.
Search for $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$ charged dark matter with neutrino telescope
Authors: Asai Kento , Okawa Shohei , Tsumura Koji 
Published: March 2021

AbstractWe study a simple Dirac fermion dark matter model in$$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$U1Lμ−Lτtheory. The new light gauge bosonXplays important roles in both dark matter physics and the explanation for the muong−2 anomaly. The observed dark matter relic density is realized by a large$$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$U1Lμ−Lτcharge without introducing a resonance effect of theXboson. As a by-product of the model, characteristic neutrino signatures from sub-GeV dark matterψare predicted depending on the mass spectrum. We formulate the analysis of$$ \psi \overline{\psi}\to \nu \overline{\nu} $$ψψ¯→νν¯, and of$$ \psi \overline{\psi}\to XX $$ψψ¯→XXfollowed by$$ X\to \nu \overline{\nu} $$X→νν¯in a model independent way. The energy spectrum of neutrinos in the former process is monochromatic while in the latter process is bowl-shape. We also evaluate sensitivity at Super-Kamiokande and future Hyper-Kamiokande detectors. The analysis is finally applied to the$$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$U1Lμ−Lτdark matter model.
Loop amplitudes monodromy relations and color-kinematics duality
Authors: Casali Eduardo , Mizera Sebastian , Tourkine Piotr 
Published: March 2021

Abstract
Color-kinematics duality is a remarkable conjectured property of gauge theory which, together with double copy, is at the heart of a wealth of new developments in scattering amplitudes. So far, its validity has been verified in most cases only empirically, with limited ab initio understanding beyond tree-level. In this paper we provide initial steps in a first-principle understanding of color-kinematics duality and double-copy at loop level, through a detailed analysis of the field-theory limit of the monodromy relations of string theory at one loop. In this limit, we dissect the type of Feynman graphs generated and the relations they obey. We find that graphs with contact-terms are unavoidable and are generated in the field theory limit of “bulk” contours which do not have a standard physical interpretation in string perturbation theory. We show how they are related to ambiguities in the definition of the loop momentum and that their role is precisely to cancel those ambiguities.
Mathieu moonshine and Siegel Modular Forms
Authors: Govindarajan Suresh , Samanta Sutapa 
Published: March 2021

Abstract
A second-quantized version of Mathieu moonshine leads to product formulae for functions that are potentially genus-two Siegel Modular Forms analogous to the Igusa Cusp Form. The modularity of these functions do not follow in an obvious manner. For some conjugacy classes, but not all, they match known modular forms. In this paper, we express the product formulae for all conjugacy classes of M24 in terms of products of standard modular forms. This provides a new proof of their modularity.
MMP for co-rank one foliations on threefolds
Authors: Cascini Paolo , Spicer Calum 
Published: March 2021

AbstractWe prove existence of flips, special termination, the base point free theorem and, in the case of log general type, the existence of minimal models for F-dlt foliated pairs of co-rank one on a $${\mathbb {Q}}$$
Q
-factorial projective threefold. As applications, we show the existence of F-dlt modifications and F-terminalisations for foliated pairs and we show that foliations with canonical or F-dlt singularities admit non-dicritical singularities. Finally, we show abundance in the case of numerically trivial foliated pairs.
The persistent homology of a sampled map: from a viewpoint of quiver representations
Authors: Takeuchi Hiroshi 
Published: March 2021

AbstractThis paper is intended to introduce a filtration analysis of sampled maps based on persistent homology, providing a new method for reconstructing the underlying maps. The key idea is to extend the definition of homology induced maps of correspondences using the framework of quiver representations. Our definition of homology induced maps is given by most persistent direct summands of representations. The direct summands uniquely determine a persistent homology. We provide stability theorems of this process and show that the output persistent homology of the sampled map is the same as that of the underlying map if the sample is sufficiently dense. Compared to existing methods using eigenspace functors, our filtration analysis represents an important advantage that no prior information related to the eigenvalues of the underlying map is required. Some numerical examples are given to demonstrate the effectiveness of our method.
P systems with limited number of objects
Authors: Alhazov Artiom , Freund Rudolf , Ivanov Sergiu 
Published: March 2021

AbstractP systems are a model of compartmentalized multiset rewriting inspired by the structure of living cells and the way they function. In this paper, we focus of a variant in P systems in which membranes have limited capacity, i.e., the number of objects they may hold is limited by a fixed bound. This feature corresponds to an important physical property of cellular compartments. We propose several possible semantics of limited capacity and show that one of them allows real-time simulations of partially blind register machines, while the other one allows for obtaining computational completeness.
Evaluation of the effects of additives on the properties of starch-based bioplastic film
Authors: Oluwasina Olugbenga O. , Akinyele Bolaji P. , Olusegun Sunday J. , Oluwasina Olayinka O. , Mohallem Nelcy D. S. 
Published: March 2021

AbstractThe adverse environmental effects of petroleum-based packaging plastics have necessitated the need for eco-friendly bioplastics. Most bioplastics are starch-based and are not without drawbacks, hence there is the need for their properties to be improved. In this study, the effect of varying concentrations of dialdehyde starch and silica solutions on the physical, mechanical, biodegradable, surface topology, and thermal properties of the bioplastic films was examined. The additive concentrations were varied from 60 to 100%. The bioplastic films produced with dialdehyde starch solution recorded better moisture content (6.62–11.85%), bioplastic film solubility (4.23–7.90%), and tensile strength (1.63–3.06 MPa), against (11.24–14.26%), (7.77–19.27%) and (0.53–0.73 MPa) respectively for bioplastic films produced with silica solution. The atomic force microscopy analysis; root-mean-square roughness, kurtosis, and skewness revealed better miscibility and compatibility between the starch matrix and the dialdehyde solution than between the starch matrix and the silica solution. Bioplastic with added dialdehyde starch solution has better tensile strength and long biodegradability than that with silica solution. The research has demonstrated that bioplastic film produced with starch and dialdehyde starch solution has better properties than the one produced with starch and silica solution. The properties evaluation results of the bioplastic films thus demonstrated their aptness for food packaging applications.

Graphic abstract
Fourier analysis using the number of COVID-19 daily deaths in the US
Authors: Takefuji Yoshiyasu 
Published: March 2021

Abstract
Fourier analysis can provide policymakers useful information for analysing the pandemic behaviours. This paper proposes a Fourier analysis approach for examining the cycle length and the power spectrum of the pandemic by converting the number of deaths due to coronavirus disease 2019 in the US to the frequency domain. Policymakers can control the pandemic by using observed cycle length whether they should strengthen their policy or not. The proposed Fourier method is useful for analysing waves in other medical applications.
Transhepatic device closure of large atrial septal defect
Authors: Firouzi Ata , Saedi Sedigheh , Saedi Tahereh 
Published: March 2021

AbstractTranscatheter closure of secundum-type atrial septal defects has become the treatment of choice in the majority of cases. Femoral venous access is the standard rout for device implantation. Anatomic abnormalities of venous system including interrupted inferior caval vein with azygous continuation can make the percutaneous procedure more complicated. In such instances, alternative methods of transjugular or transhepatic approach or surgical repair should be considered. We present the case of a 50-year-old male with secundum-type atrial septal defect and a rare form of segmental interruption of inferior caval vein and describe successful atrial septal defect closure through transfemoral approach.
Couplinator: A simple computational tool for synthesis of multi-section coupled-line filter based on MPCM-TLM technique
Authors: Faghand E. , Karimian S. , Mehrshahi E. , Karimian N. 
Published: March 2021

AbstractA new simple computational tool is proposed for the synthesis of multi-section coupled-line filters based on combined modified planar circuit method (MPCM) and transmission line method (TLM) analysis, referred to as MPCM-TLM. Due to its fundamentally simple architecture, the presented tool offers significantly faster optimization of coupled-line filters – for exactly the same initial simulation set-up – than other costly commercially-available tools, giving equally reliable results.Validity and accuracy of the proposed tool have been verified through the design of 3rd, 5th, and 7th order coupled-line filters and comparative analysis between results obtained from the proposed approach and the high-frequency structure simulator. A remarkable 99% time reduction in the analysis is recorded in the case of 7th order filter using the proposed tool, for almost identical results to HFSS. Therefore, it can be confidently claimed that the proposed technique can be used as a reliable alternative to existing complex, costly, processor-intensive CAD tools.