bluuebunny/crossref_metadata_2025_split huggingface dataset:
Features of smaller ribosomes in Candidate Phyla Radiation (CPR) bacteria revealed with a molecular evolutionary analysis
Authors: Tsurumaki Megumi , Saito Motofumi , Tomita Masaru , Kanai Akio 
Published: January 2022

ABSTRACTThe Candidate Phyla Radiation (CPR) is a large bacterial group consisting mainly of uncultured lineages. They have small cells and small genomes, and often lack ribosomal proteins L1, L9, and/or L30, which are basically ubiquitous in ordinary (non-CPR) bacteria. Here, we comprehensively analyzed the genomic information of CPR bacteria and identified their unique properties. In the distribution of protein lengths in CPR bacteria, the peak was at around 100–150 amino acids, whereas the position of the peak varies in the range of 100–300 amino acids in free-living non-CPR bacteria, and at around 100–200 amino acids in most symbiotic non-CPR bacteria. These results show that CPR bacteria have smaller proteins on average, like symbiotic non-CPR bacteria. We found that ribosomal proteins L28, L29, L32, and L33 are also deleted in CPR bacteria, in a lineage-specific manner. Moreover, the sequences of approximately half of all ribosomal proteins in CPR differ, in part, from those of non-CPR bacteria, with missing regions or specific added region. We also found that several regions of the 16S, 23S, and 5S rRNAs are lacking in CPR bacteria and that the total predicted length of the three rRNAs in CPR bacteria is smaller than that in non-CPR bacteria. The regions missing in the CPR ribosomal proteins and rRNAs are located near the surface of the ribosome, and some are close to one another. These observations suggest that ribosomes are smaller in CPR bacteria than in free-living non-CPR bacteria, with simplified surface structures.
Sustained upregulation of widespread hippocampal-neocortical coupling following memory encoding
Authors: Folvik Line , Sneve Markus H. , Ness Hedda T. , Vidal-Piñeiro Didac , Raud Liisa , Geier Oliver M. , Walhovd Kristine B. , Fjell Anders M. 
Published: January 2022

AbstractSystems consolidation of new experiences into lasting episodic memories involves interactions between hippocampus and the neocortex. Evidence of this process is seen already during early awake post-encoding rest periods. Functional MRI (fMRI) studies have demonstrated increased hippocampal coupling with task-relevant perceptual regions and reactivation of stimulus-specific encoding patterns following intensive encoding tasks. Here we investigate the spatial and temporal characteristics of these hippocampally anchored post-encoding neocortical modulations. Eighty-nine adults participated in an experiment consisting of interleaved memory task- and resting-state periods. As expected, we observed increased post-encoding functional connectivity between hippocampus and individually localized neocortical regions responsive to stimulus categories encountered during memory encoding. Post-encoding modulations were however not restricted to stimulus-selective cortex, but manifested as a nearly system-wide upregulation in hippocampal coupling with all major functional networks. The spatial configuration of these extensive modulations resembled hippocampal-neocortical interaction patterns estimated from active encoding operations, suggesting hippocampal post-encoding involvement by far exceeds reactivation of perceptual aspects. This reinstatement of encoding patterns during immediate post-encoding rest was not observed in resting-state scans collected 12 hours later, nor in control analyses estimating post-encoding neocortical modulations in functional connectivity using other candidate seed regions. The broad similarity in hippocampal functional coupling between online memory encoding and offline post-encoding rest suggests reactivation in humans may involve a spectrum of cognitive processes engaged during experience of an event.Significance statementStabilization of newly acquired information into lasting memories occurs through systems consolidation – a process which gradually spreads the locus of memory traces from hippocampus to more distributed neocortical representations. One of the earliest signs of consolidation is the upregulation of hippocampal-neocortical interactions during periods of awake rest following an active encoding task. We here show that these modulations involve much larger parts of the brain than previously reported in humans. Comparing changes in hippocampal coupling during post-encoding rest with those observed under active encoding, we find evidence for encoding-like hippocampal reinstatement throughout cortex during task-free periods. This suggests early systems consolidation of an experience involves reactivating not only core sensory details but multiple additional aspects of the encoding event.
Collision response and obstacle avoidance of the tethered-space net robot system with non-target objects
Authors: Zhu Weiliang , Pang Zhaojun , Si Jiyue , Du Zhonghua 
Published: January 2022

Purpose
This paper aims to study the encounter issues of the Tethered-Space Net Robot System (TSNRS) with non-target objects on orbit during the maneuver, including the collision issues with small space debris and the obstacle avoidance from large obstacles.

Design/methodology/approach
For the collision of TSNRS with small debris, the available collision model of the tethered net and its limitation is discussed, and the collision detection method is improved. Then the dynamic response of TSNRS is studied and a closed-loop controller is designed. For the obstacle avoidance, the variable enveloping circle of the TSNRS has coupled with the artificial potential field (APF) method. In addition, the APF is improved with a local trajectory correction method to avoid the overbending segment of the trajectory.

Findings
The collision model coupled with the improved collision detection method solves the detection failure and speeds up calculation efficiency by 12 times. Collisions of TSNRS with small debris make the local thread stretch and deforms finally making the net a mess. The boundary of the disturbance is obtained by a series of collision tests, and the designed controller not only achieved the tracking control of the TSNRS but also suppressed the disturbance of the net.

Practical implications
This paper fills the gap in the research on the collision of the tethered net with small debris and makes the collision model more general and efficient by improving the collision detection method. And the coupled obstacle avoidance method makes the process of obstacle avoidance safer and smoother.

Originality/value
The work in this paper provides a reference for the on-orbit application of TSNRS in the active space debris removal mission.
A review on modelling and dynamic analysis of viscoelastic rotor systems
Authors: Ganguly Krishanu , Chandraker Saurabh , Roy Haraprasad 
Published: January 2022

Purpose
The purpose of this study is to bring down collective information about various issues encountered in modelling of rotor systems.

Design/methodology/approach
The most important and basic part of “rotor dynamics” is the study related to its different modelling techniques which further involves the analysis of shaft for understanding the system potential, competence and reliability. The issues addressed in this study are classified mainly into two parts: the initial part gives out a vast overview of significant problems as well as different techniques applied to encounter modelling of rotor systems, while the latter part of the study describes the post-processing problem that occurs while performing the dynamic analysis.

Findings
The review incorporates the most important research works that have already placed a benchmark right from the beginning as well as the recent works that are still being carried out to further produce better outcomes. The review concludes with the modal analysis of rotor shaft to show the importance of mathematical model through its dynamic behaviour.

Originality/value
A critical literature review on the modelling techniques of rotor shaft systems is provided from earliest to latest along with its real-time application in different research and industrial fields.
Allergen's labeling of food products: regulatory practices in Morocco
Authors: Guennouni Morad , Admou Brahim , El Khoudri Noureddine , Bourrouhouat Aicha , Machraoui Safaa , Jasny El Khansaa , Hilali Abderraouf 
Published: January 2022

PurposeAllergenic substances cause food allergy, which represents a major health issue in most countries. This underlines the importance of considering the products' labeling as well as applying related regulatory practices. The objective of this study was to assess the labeling practices of allergens in food products in Morocco.Design/methodology/approachThis cross-sectional survey was conducted on 156 food products collected from four supermarkets in a Moroccan megacity. The data related to the allergen substances (allergen declared, emphasis characters, precautionary allergen labeling) were collected from labels of food products.FindingsThe number of foods included in this research was 156, of which 7 (4.5%) did not mention the allergy alert. The analysis of the allergy alert in the others sample (149) showed 266 nonconformities, noticed in 112 (71.8%) products. The labeling emphasis characters were observed in 33.3% of products, and only 13.5% mentioned “contains allergen” as a mandatory statement to declare the presence of allergens. Allergic alerts found in places concealed, removable by the opening of the seal or difficult to see were observed in 28.9%. The use of a precautionary allergen labeling statement was noticed in 40.4% of products.Originality/valueMoroccan regulations on food allergens are demanding like those of the European Union and more demanding than those of most African countries. However, the application of this regulation remains unsatisfactory and 266 non-conformities were found in 112 (71.8%) products. The absence of emphasis characters and the declaration in inappropriate places represent the most observed non-conformities. Therefore, Moroccan manufacturers must strictly adhere to regulations to avoid exposure of predisposed consumers to potentially threatening allergenic substances.
My job is to hide it! A role strain perspective
Authors: Sinha Sweta , Pandey Agrata 
Published: January 2022

Purpose
The study presents a framework of knowledge hiding (KH) driven by positive and negative intentions. The study also highlights the impact of KH on the employee’s role-related responsibility to engage in KH.

Design/methodology/approach
We review the literature on KH from the perspective of role strain theory and propose a conceptual framework.

Findings
The study proposes a conceptual framework of KH practices driven by positive and negative intent, further segregated into organizational and personal causes of KH. The framework also depicts the positive and negative impact of KH on the employees and highlights the impact of role-related responsibility of KH.

Originality/value
This paper provides a framework to understand how role-related KH responsibilities (organization driven) and personal motives map to employee outcomes.
Designing metadata schema for a human library: a prototype
Authors: Jana Anupta , Rout Rosalien 
Published: January 2022

Purpose
In the absence of a working model for describing, managing and archiving the human library resources, this study aims to attempt a practical approach that will provide all the necessary information to the library users, library professionals and researchers.

Design/methodology/approach
Initially, different metadata standards, archival projects and attributes of the human books were reviewed to identify appropriate metadata standards that accurately describe the resources of the human library. A free and open-source software; DSpace was considered for implementing newly defined metadata schema in this study. Thereafter, a set of new subject entries was incorporated to standardize the contents of the human library.

Findings
This study finds that the widely used metadata schema – Dublin Core (DC) is not appropriate to describe the contents of the human book. It shows that selected metadata elements from the types – person and event of schema.org can be used for describing, organizing and archiving the resources of the human library. It further highlights that existing subject entries are not sufficient to standardize the contents of these types of resources.

Research limitations/implications
Two metadata fields in DSpace are strongly recommended by the DSpace community to consider in the input-forms.xml file, that is why the study could not completely omit DC metadata elements in describing human books.

Originality/value
The study provides a roadmap to the library professionals on the inclusion of new metadata schemas in describing the uniquely featured resources of the library.
Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems
Authors: Liu Gang , Ma Fengshan , Zhang Maosheng , Guo Jie , Jia Jun 
Published: January 2022

PurposeContinua and discontinua coexist in natural rock materials. This paper aims to present an improved approach for addressing the mechanical response of rock masses based on the combined finite-discrete element method (FDEM) proposed by Munjiza.Design/methodology/approachSeveral algorithms have been programmed in the new approach. The algorithms include (1) a simpler and more efficient algorithm to calculate the contact force; (2) An algorithm for tangential contact force closer to the actual physical process; (3) a plastic yielding criterion (e.g. Mohr-Coulomb) to modify the elastic stress for fitting the mechanical behavior of elastoplastic materials; and (4) a complete code for the mechanical calculation to be implemented in Matrix Laboratory (MATLAB).FindingsThree case studies, including two standard laboratory experiments (uniaxial compression and Brazilian split test) and one engineering-scale anti-dip slop model, are presented to illustrate the feasibility of the Y-Mat code and its ability to deal with multi-scale rock mechanics problems. The results, including the progressive failure process, failure mode and trajectory of each case, are acceptable compared to other corresponding studies. It is shown that, the code is capable of modeling geotechnical and geological engineering problems.Originality/valueThis article gives an improved FDEM-based numerical calculation code. And, feasibility of the code is verified through three cases. It can effectively solve the geotechnical and geological engineering problems.
Enterprise education: pre-service further education teachers' impressions and aspirations
Authors: Tiernan Peter , O’Kelly Jane 
Published: January 2022

PurposeThe purpose of this paper is to examine the attitudes and impressions of pre-service Further Education teachers towards enterprise education. It also looks at the potential impact on their future teaching practices and aspirations. This study builds on the literature in this area by bringing a teacher education focus and by providing views from the underserved further education sector.Design/methodology/approachA qualitative research approach was used to evaluate pre-service further education teachers' understanding of and attitudes towards, enterprise education. Data were collected through semi-structured interviews with 15 students in their final year of an initial teacher education degree.FindingsFindings emerged through constant comparative analysis of interview transcripts. These findings indicate that exposure to enterprise education greatly increased understanding of its importance and relevance, while also encouraging pre-service further education teachers to recognise the benefits of incorporating enterprise education into their classrooms of the future.Originality/valueWhile there is an array of literature on entrepreneurship and enterprise education outside of business contents, very few studies exist, which examine enterprise education in an initial teacher education context. Fewer still examine enterprise education from the perspective of further education. This study provides a unique qualitative view of pre-service further education teachers' impressions of enterprise education and their aspirations for the future.
Influence of aesthetics attributes of brand Web pages on customer brand engagement
Authors: Marmat Geeta 
Published: January 2022

Purpose
This paper aims to empirically explore the influence of website aesthetic attributes (classical and expressive) on customer brand engagement (CBE) intention.

Design/methodology/approach
This research develops a framework and a few research hypothesis based on available literature on the concept of aesthetics, aesthetic attribute of websites and CBE, as well as other reliable resources, relevant theories, wherever required and tested it on the data collected from 400 respondents of the Y generation (Gen Y) of India by means of structural equations modelling using SPSS AMOS 21.

Findings
The findings indicate that expressive aesthetics of the brand Web pages of the beauty products is positively associated with drawing attention. Expressive aesthetics and classical aesthetics together explained 16% of the variance in attention. This indicates that aesthetic attributes indeed play a role in drawing the attention of the customer. However, mere attention is not sufficient to form the behavioural intention in the customer to engage with that particular brand unless the customer does get fully absorbed with aesthetic attributes of the brand Web pages.

Research limitations/implications
The outcome of this research is based on the view of only 400 Gen Y individuals from the city of Indore in India. This limits its generalizability across India and other country context. This study makes important contribution to brand website aesthetic and CBE literature by empirically investigating the concept of brand website aesthetics as important in interactive marketing approach to initiate CBE intention formation. It further argues that cognitive engagement is the first and foremost engagement dimension and underscores aesthetic attributes as important in forming the customer first perception based on which subsequent CBE behavioural intention develops.

Originality/value
This research adds novel insight in the relationship of the brand website aesthetic attributes and CBE by studying the impact of the aesthetic attribute of brand Web pages on the two cognitive elements, namely, attention and absorption and further its effect on brand behavioural intention taking as sample of Gen Y of India.
The extent of building and managing local contents in institutional repositories: a survey of tertiary institution libraries in Nigeria
Authors: Oberhiri-Orumah Godwin , Baro Ebikabowei Emmanuel 
Published: January 2022

Purpose
The purpose of this study is to investigate the development of institutional repositories (IR) in tertiary institution libraries in Nigeria.

Design/methodology/approach
The study adopted a survey research method. Online questionnaire and IR site investigation methods were used to collect data from 25 university libraries in Nigeria.

Findings
The study revealed that only 25 (14.7%) universities out of the 170 universities in Nigeria have successfully developed IRs and registered their presence in OpenDOAR. Other tertiary institutions such as Polytechnics and Colleges of Education investigated in Nigeria are yet to develop IRs. Contents such as theses and dissertations, conference proceedings and journal articles ranked highest being the most popular contents in the various IRs. The results showed that the development of IR saves space in the library, increases readership, increases access to local contents, minimizes damage to the original material, facilitates the dissemination of scholarly research and assists in globalization of Nigerian research findings. The IRs site investigation revealed that only few IRs have clearly defined access policy, content policy, submission policy and digital preservation policy. The study identified challenges such as inadequate facilities, unstable internet connectivity, lack of fund, irregular power supply, challenge of collecting materials for the IR, lack of skilled ICT personnel, copyright issues and absence of IR policies.

Practical implications
The results from the study will provide important data and insight into the development of institutional repositories in tertiary institution libraries in Nigeria, and generate suggestions for University Librarians, College Librarians, Polytechnic Librarians, tertiary institutions management and policy makers for developing institutional repositories in Nigeria and other developing countries.

Originality/value
The study investigated IR development in tertiary institutions in Nigeria. The findings will inform other tertiary institutions in developing countries that the development of IR provides an opportunity for the visibility of local contents emanating from institutions and make them see the reason to embrace this laudable development.
An evaluation of the impacts of construction professionals’ conflict on performance in the Nigerian construction industry
Authors: Adeyemi Benjamen Sunkanmi , Aigbavboa Clinton Ohis 
Published: January 2022

PurposeThis study aims to evaluate impacts of construction professionals (CPs) conflict on performance in the Nigerian construction industry (NCI).Design/methodology/approachA quantitative method was used for this research. Questionnaires were sent to various CPs in Southwestern part of Nigeria. A total of 150 questionnaires were sent out, while 135 were gotten back from the partakers. The data received from the partakers were computed by applying descriptive and exploratory factor analysis.FindingsIn this study, conflict leads to the abandonment of the CPs’ task being rated highest by the participants. This was followed by conflict that results in insufficient communication, generates job pressure, results to frustrations and displeasure among the CPs, helps in early problem identification, causes work damage among professionals, helps in solving professional organization problems, improves productivity of professionals, improves communication among the professionals and so on.Research limitations/implicationsThis paper is limited to CPs that are members of professional bodies in Nigeria, and only 135 participants participated. Though, this paper suggests that a mixed-method approach should be utilized in further studies with a wider coverage.Practical implicationsThe findings from this paper will increase the understanding of CPs in Nigeria on various impacts of conflict on performance in the construction industry, most specifically the professional bodies. Moreover, this study will increase the knowledge of CPs to always avoid whatever that leads to the abandonment of their tasks. Additionally, this study will benefit the CPs to avoid insufficient communication among themselves, in order to accomplish great performance and efficiency in their respective professional bodies.Originality/valueSince previous studies on impacts of construction conflict in Nigeria were only focused on contractors and consultants in construction project, this current study filled the gap by evaluating the impacts of CPs’ conflict on performance in the NCI. Also, the method of analysis used for this study is exemptional because previous studies have overlooked the method. However, it is recommended that CPs must communicate more with others so as to ensure favorable conflict effects on performance.