bluuebunny/crossref_metadata_2025_split huggingface dataset:
Out-of-register parallel β-sheets and antiparallel β-sheets coexist in 150 kDa oligomers formed by Aβ(1-42)
Authors: Gao Yuan , Guo Cong , Watzlawik Jens O. , Lee Elizabeth J. , Huang Danting , Zhou Huan-Xiang , Rosenberry Terrone L. , Paravastu Anant K. 
Published: March 2020

AbstractWe present solid-state NMR measurements of β-strand secondary structure and inter-strand organization within a 150 kDa oligomeric aggregate of the 42-residue variant of the Alzheimer’s amyloid-β peptide (Aβ(1-42)). This oligomer is characterized by a structure that cannot be explained by any previously proposed model for aggregated Aβ. We build upon our previous report of a β-strand spanned by residues 30-42, which arranges into an antiparallel β-sheet. New results presented here indicate that there is a second β-strand formed by residues 11-24. We show negative results for NMR experiments designed to reveal antiparallel β-sheets formed by this β-strand. Remarkably, we show that this strand is organized into a parallel β-sheet despite the co-existence of an antiparallel β-sheet in the same structure. In addition, the in-register parallel β-sheet commonly observed for amyloid fibril structure does not apply to residues 11-24 in the 150 kDa oligomer. Rather, we present evidence for an inter-strand registry shift of 3 residues that alternates in direction between adjacent molecules along the β-sheet. We corroborated this unexpected scheme for β-strand organization using multiple 2-dimensional NMR and13C-13C dipolar recoupling experiments. Our findings indicate a previously unknown assembly pathway and inspire a suggestion as to why this aggregate does not grow to larger sizes.
Auditory Countermeasures for Sleep Inertia: An Ecological Study Examining the Influence of Melody and Rhythm
Authors: McFarlane Stuart J. , Garcia Jair E. , Verhagen Darrin S. , Dyer Adrian G. 
Published: March 2020

AbstractSleep inertia is the potentially harmful decline in cognition that occurs upon and following awakening. Sound has been shown to counteract the negative symptoms of sleep inertia, with a recent study revealing that an alarm perceived as melodic by participants displayed a significant relationship to reports of reductions in perceived sleep inertia. This current research builds on these findings by specifically testing the effect melodic and rhythmic stimuli exhibit on sleep inertia for subjects awakening in their habitual environments. Two test Groups (A & B;N= 10 equally) completed an online psychomotor experiment and questionnaire in two separate test sessions immediately following awakening from nocturnal sleep epochs. Both groups responded to a Control stimulus in the first session, while in the second session, Group A experienced a Melodic treatment, and Group B the Rhythmic. The results show that the melodic treatment significantly decreased attentional Lapses, False Starts and had a significantly improved PVT Performance Score than the Control. There was no significant result for Reaction Time or Response Speed. Additionally, no significant difference was observed for all PVT metrics between the Control – Rhythmic conditions. The results support melodies potential to counteract symptoms of sleep inertia by the observed increase in participant vigilance following waking. Specifically, a melodically rhythmic contour is highlighted as a significant musical treatment noteworthy of consideration when designing alarm compositions for the reduction of sleep inertia. As auditory assisted awakening is a common within modern society, improvements in alarm sound design may have advantages in domestic and commercial settings.
Green Fabricated Zinc Oxide Nanoformulated Media Enhanced Callus Induction and Regeneration Dynamics ofPanicum virgatumL.
Authors: Shafique Saima , Jabeen Nyla , Ahmad Khawaja Shafique , Irum Samra , Anwaar Sadaf , Ahmad Naeem , Alam Sadia , Ilyas Muhammad , Khan Talha Farooq , Hussain Syed Zaheer 
Published: March 2020

AbstractThe current study was focused on the usage of bio synthesized zinc oxide nanoparticles to increase the tissue culture efficiency of important forage grassPanicum virgatum. Zinc being a micronutrient enhanced the callogenesis and regeneration efficiency ofPanicum virgatumat different concentrations. Here, we synthesized zinc oxide nanoparticles throughCymbopogon citratusleaves extract to evaluate the influence of zinc oxide nanoparticles on the quality of plant regeneration in switchgrass. X-ray diffraction (XRD) and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) validate phase purity of green synthesize Zinc oxide nanoparticles whereas, electron microscopy (SEM) has illustrated the average size of particle 50±4 nm with hexagonal rod like shape. Energy dispersive Xray (EDS) spectra depict major peaks of Zn (92.68%) while minor peaks refer to Oxygen (7.32%). ZnO NPs demonstrate the incredibly promising results against callogenesis. Biosynthesized ZnO NPs at optimum concentration showed very promising effect on plant regeneration ability. Both the explants, seeds and nodes used in study showed dose dependent response and upon high doses exceeding 40 mg/L the results were recorded negative, whereas at 30 mg/L both explants demonstrate 70 % and 76 % regeneration frequency. The results conclude that zinc oxide nanoparticles enhance plant growth and development. Being one of the essential plant nutrients, ZnO has greatly tailored the nutritive properties at nano-scale.
Compartmentalization of the replication fork by single-stranded DNA binding protein regulates translesion synthesis
Authors: Chang Seungwoo , Thrall Elizabeth S. , Laureti Luisa , Pagès Vincent , Loparo Joseph J. 
Published: March 2020

AbstractDNA replication is mediated by the coordinated actions of multiple enzymes within replisomes. Processivity clamps tether many of these enzymes to DNA, allowing access to the primer/template junction. Many clamp-interacting proteins (CLIPs) are involved in genome maintenance pathways including translesion synthesis (TLS). Despite their abundance, DNA replication in bacteria is not perturbed by these CLIPs. Here we show that while the TLS polymerase Pol IV is largely excluded from moving replisomes, the remodeling of ssDNA binding protein (SSB) upon replisome stalling enriches Pol IV at replication forks. This enrichment is indispensable for Pol IV-mediated TLS on both the leading and lagging strands as it enables Pol IV-processivity clamp binding by overcoming the gatekeeping role of the Pol III epsilon subunit. As we have demonstrated for the Pol IV-SSB interaction, we propose that the binding of CLIPs to the processivity clamp must be preceded by interactions with factors that serve as localization markers for their site of action.
Implementing IFRS in Saudi Arabia: evidence from publicly traded companies
Authors: Nurunnabi Mohammad , Jermakowicz Eva K. , Donker Han 
Published: March 2020

PurposeThe Saudi Organization for Certified Public Accountants (SOCPA) requires that International Financial Reporting Standards (IFRS), as endorsed in Saudi Arabia, be used by all listed and unlisted companies. This study aims to provide insight into IFRS implementation problems, based on a survey sent to Saudi Arabian companies listed on Tadawul, the Saudi stock market (i.e. financial hub in the Middle East).Design/methodology/approachThe survey focused on the impact that IFRS conversion has had on companies, their accounting and their finance strategies. The benefits and challenges of the adoption of IFRS are analyzed, including matters pertaining to the level of understanding and experience with IFRS, perceptions about the quality of IFRS and the impact of adoption of IFRS on consolidated equity and net income.FindingsThe survey had a response rate of 72 per cent. The results indicate a majority of respondents support conversion to IFRS as it results in higher quality financial reporting; the most important expected benefits of adopting IFRS include greater reporting transparency and improved comparability with other businesses; other expected benefits include harmonization of internal and external reporting, and increased cross-border investment opportunities; the IFRS process is costly and ties up resources because of its complexity and training needed and companies expect increased volatility in reported financial results that will impact share option plans and/or other incentive plans tied to profits. However, the authors find strong support among preparers of the financial statements for IFRS, as evidenced by higher agreement among respondents to the survey on the benefits of adopting IFRS, rather than on the costs of its adoption. Furthermore, the analysis shows that the likelihood of Saudi Arabian firms that are in favor of adopting IFRS decreases if the audit firm is one of the Big 4. The reason for this negative relationship could be that the cost of transition toward IFRS will be high. Therefore, Saudi Arabian firms will not favor a transition toward IFRS when their audit firm belongs to the Big 4. Most difficult to implement IFRS, as listed by respondents, include those on financial instruments, revenue, leases and employee benefits.Originality/valueThe authors show how economic and environmental factors play a critical role in the IFRS implementation process. This study should be important to all countries worldwide that are in the process of adopting IFRS.
Legal basis for the fraud exception in letters of credit under English Law
Authors: Aladwan Zaid 
Published: March 2020

Purpose
This paper aims to analyse the status of the bank’s knowledge and the hardship related to the clear evidence requirement with regard to establish the fraud exception rule in English courts.

Design/methodology/approach
Traditional analysis method and critical legal thinking.

Findings
To trigger such an exception in England, two conditions, bank’s knowledge and clear evidence, must be met to establish the fraud rule, which will be applied only if it appears in documents. The bank’s knowledge condition, the awareness of the fraud that the bank should have before the payment, is material to determine whether if the fraud rule will trigger in most of the English cases. However, if the bank is not aware of the fraud, they must honour the credit if the documents are compliant, meaning the paying bank is protected if the documents against which it made payment are tainted with fraud, even if it is not aware of the fraud. Moreover, it is not a bank’s responsibility to investigate allegations of fraud. Nonetheless, there are some reservations regarding the bank’s knowledge and clear evidence conditions, as explained above. In short, such an approach does not lead to fairness and justice for the applicant.

Originality/value
English courts focus more on evidence of the fraud rather than making unnecessary distinctions pertinent to the fraud exception scope. The absence of such evidence will not trigger the exception rule. Conversely, injunctions are not easily granted in England where the requirement for heavy evidence and proof of the bank’s knowledge will be obstacles. That is to say, banks are more protected in England simply because the courts want to uphold the integrity of the banking system when affirming the autonomy principle. In a case where the applicant becomes aware of the fraud, there is no other option for the applicant except to ask for an injunction from the court, which is not easy to gain under English courts. In addition, it is unclear how the court will prove that the bank is aware if there is fraud in the presented documents. In addition, the question arises as to whether the same strict standard will be required by both the applicant and the party who notified the fraud.
The influence of organizational learning on performance and innovation: a literature review
Authors: Patky Jahnavi 
Published: March 2020

Purpose
The study addresses four vital issues in the area of organizational learning (OL) literature. The purpose of this study is to elucidate the following: definition of OL, accepted dimensions of OL, antecedents and consequences of OL and the link between OL and performance and innovation.

Design/methodology/approach
The study presents a systematic literature review and concept analysis of OL, along with a focused discussion on the association of OL with performance and innovation.

Findings
After articulating multiple perspectives, OL can be defined as the process by which organizational knowledge base and insights are developed via associations between past actions, the effect of those and future operations. OL has two widely acknowledged dimensions, namely, exploratory learning and exploitative learning. Moreover, the study presented a conceptual analysis of OL along with a comprehensive framework for precursors and outcomes of OL.

Originality/value
This study probes the issues and the pattern in the literature of OL domain. The presented conceptual analysis gives direction to the future endeavours of researchers in the field of OL.
Can usage be used for scholars’ evaluation in the construction of smart libraries?
Authors: Liu Yunmei , Li Changling , Gao Zichun 
Published: March 2020

PurposeWith the development of Web2.0 and publishing digitalization, traditional libraries and evaluation citation system can no longer indicate academic paper influence validly. Therefore, it is necessary to construct smart library and find the evaluation effect of Internet metrics-Usage.Design/methodology/approachThis study puts forward four indexes of scholars’ evaluation based on Usage (total Usage (U), average Usage rate (U/N), hu-index and pu-index), which refer to citation indexes, takes the 35 high-output scholars in the field of library and information science in the WoS database as examples, analyzes performance of different scholars evaluation indexes based on Usage and compares the differences and correlations between “citation indicators” and “usage indicators.”FindingsThis study results show that pu-index is the strongest index to evaluate scholars. Second, there is a high correlation and strong mechanism based on time dependence and interactions between Usage and citation. Third, compared to “citation indicators”, the “usage indicators” has a larger numerical value and wider measurement range, which can break the time limitation of citation, and scientifically evaluate young scholars and newly published paper by scholars.Originality/valueThis paper proposes the pu-index – a relatively superior mathematical model for Usage and provides reference for the scholars’ evaluation policy of the smart library. This model can not only provide fair evaluation conditions for young scientists but also shorten the evaluation effect of the time lag of cited indicators. In addition, the “usage indicators” in this paper are new scientific evaluation indicators generated in the network environment. Applying it to the academic evaluation system will make the research papers widely accepted by the public and will also encourage scientists to follow the development of the Internet age and pursue research with equal emphasis on quantity and quality.
Analyzing critical success factors for a successful transition towards circular economy through DANP approach
Authors: Khan Shahbaz , Maqbool Annayath , Haleem Abid , Khan Mohd Imran 
Published: March 2020

PurposeThe successful transition towards the circular economy is a requirement of this technological era. The objective of this study is to identify critical success factors behind the successful transition to the circular economy.Design/methodology/approachA systematic literature review and experts' inputs are used to identify the major critical success factors of a successful transition towards a circular economy. Further, DANP is applied to discover the interrelationships among the critical success factors dimensions by analyzing causal relations between the relevant critical success factors. Additionally, the ranking of significant critical success factors for the successful transition towards the circular economy is determined.FindingsThis study has used the DANP methodology to understand the relationships among the five dimensions and the twenty-two critical success factors and identified the key influencing critical success factors through their global weights. Research findings suggest that “vision regard to a circular economy” has the highest weights, followed by “financial sustainability” which is regarded as the most important CSF.Research limitations/implicationsThe outcomes of this work may help organizations on issues related to the transition of the linear economy towards circular economy, in understanding the degree of importance of the each critical success factors, based on which the organizations can formulate an effective strategy to systematically emphasize critical success factors as per their importance for the successful transition towards circular economy.Originality/valueThis study tries to explore and analyze critical success factors of the transition from the linear economy to a circular economy. Further, the finding of this study provides deeper insights into academia and mangers that helps to formulate their action plan for moving towards the circular economy.
Psychological detachment
Authors: Ghosh Debjani , Sekiguchi Tomoki , Fujimoto Yuka 
Published: March 2020

PurposeThe purpose of this paper is to develop an additional perspective on when and why intrinsic motivation predicts employee engagement by presenting a contextual boundary of psychological detachment in relation to the relationship between intrinsic motivation, employee creativity and employee engagement of workers.Design/methodology/approachData were collected from 288 full-time Japanese workers using an online survey. The study used a bootstrap method (Preacher and Hayes, 2008) to test mediation, and a Hayes method (2013) to test moderation and a first-stage moderated mediation model.FindingsEmployee creativity mediated the relationship between intrinsic motivation and employee engagement, and the relationship between intrinsic motivation and creativity was moderated by psychological detachment. Additionally, the indirect effect of intrinsic motivation on employee engagement via creativity was moderated by psychological detachment.Research limitations/implicationsThe cross-sectional design may have limited the empirical inferences; however, the proposed model was based on robust theoretical contentions, and the study included an unrelated “marker variable” (neuroticism) as an effective means of identifying common method variance (CMV), thus mitigating the limitation of the design.Practical implicationsThis study has shown that intrinsically motivated employees who practice psychological detachment from work achieve higher creativity and stronger employee engagement.Originality/valueBased on the unconscious thought theory (UTT), job demand resource theory (JD-R), recovery processes (i.e. effort-recovery model) and self-determination theory (SDT), this paper adds to the literature by demonstrating the mediating and moderating mechanisms driving intrinsic motivation and employee engagement relationship.
River dams and the stability of bird communities: A hierarchical Bayesian analysis in a tropical hydroelectric power plant
Authors: Abreu Tarcísio L. S. , Berg Sandro B. , de Faria Iubatã P. , Gomes Leonardo P. , Marinho‐Filho Jader S. , Colli Guarino R. 
Published: March 2020

Abstract

The effects of anthropogenic disturbance upon the stability of wildlife communities depend on the heterogeneity and connectivity of habitat remnants on multiple scales. The number of hydroelectric dams in biodiversity hotspots (Africa, South America and Asia) is growing rapidly. To establish their environmental impact, it is essential to understand the dynamics of wildlife communities before and following the establishment of dams.

We evaluated the impacts of the filling of the Serra do Facão hydroelectric reservoir in the São Marcos river, central Brazil, on the bird community. Using data from 1,145 surveys across 20 sampling sites over 8 years, 2 years before and 6 years after the filling of the reservoir, we assessed the resistance, i.e. maintenance close to an equilibrium state during the disturbance, and resilience, i.e. ability to return to the original state following the disturbance, of the bird community. We used spatiotemporal hierarchical Bayesian models to assess the effects of reservoir filling on five community parameters: abundance, richness, phylogenetic diversity, functional diversity and species composition.

In the period subsequent to reservoir filling, there was (a) a marked reduction in bird abundance, richness, phylogenetic diversity and functional diversity, and (b) a reduction in the proportion of forest species, coupled with an increase in the proportion of savanna species. Except for bird abundance, none of the other community attributes returned to their original levels, even after 6 years. Our findings indicate that Cerrado bird communities have both low resistance and low resilience to habitat loss associated with the establishment of hydroelectric reservoirs.

Synthesis and applications. The environmental costs of hydroelectric dams are still underestimated or neglected in Brazil. A new paradigm in the assessment of their environmental impacts is warranted, incorporating (a) models of spatiotemporal variations based on long‐term monitoring with surveys initiated before disturbances and (b) measures of functional and phylogenetic diversity, such that society can understand the costs and benefits of the establishment of new hydroelectric dams and make informed decisions. Biodiversity loss could be minimized by ensuring the preservation and connectivity of alluvial habitats, capable of maintaining the supply of resources and the functional and phylogenetic attributes of bird communities associated with such habitats.
The influence of ecological traits and environmental factors on the co‐occurrence patterns of birds on islands worldwide
Authors: Sato Eri , Kusumoto Buntarou , Şekercioğlu Çağan H. , Kubota Yasuhiro , Murakami Masashi 
Published: March 2020

AbstractTo understand the mechanisms shaping global species diversity patterns, we focused on species assembly of bird communities on islands, which are ideal for detecting ecological and historical processes. We tested the hypotheses that species traits and island environments interactively shape the phylogenetic structure of island bird assemblages through a variety of ecological processes: habitat filtering, in‐situ speciation, extinction, dispersal limitation and competitive exclusion. We assessed the effects of species ecological traits and environment factors on the phylogenetic fields, which defined as phylogenetic distance between individual bird species and co‐occurred species within each island, using phylogenetic generalized linear mixed models. Climate and isolation were the most important factors driving the co‐occurrence patterns of island bird species: the species' phylogenetic fields were significantly clustered on tropical and/or isolated islands. We also found that the phylogenetic fields strongly correlated with the ecological traits especially for the diet and habitat preferences: the phylogenetic fields tended to over‐disperse for granivores and species inhabiting in wetlands or coasts, while frugivores showed clustered phylogenetic fields. Moreover, mobility and body size had substantial effects on species assemblages: long‐distance dispersers had clustered phylogenetic fields and small‐bodied species showed overdispersed phylogenetic fields.