bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bioinformatic and fine-scale chromosomal mapping uncover the essence and evolution of eliminated chromosomes in the Japanese hagfish,Eptatretus burgeri, through repetitive DNA family analysis
Authors: Nagao Kohei , Tanaka Yoshiki , Kajitani Rei , Toyoda Atsushi , Itoh Takehiko , Kubota Souichirou , Goto Yuji 
Published: May 2023

AbstractIn the Japanese hagfish,Eptatretus burgeri, approximately 21% of the genomic DNA in germ cells (2n=52) consists of 16 chromosomes (eliminated [E]-chromosomes) that are eliminated from presumptive somatic cells (2n=36). To uncover the eliminated genome (E-genome), we have identified 16 eliminated repetitive DNA families from eight hagfish species, with 11 of these repeats being selectively amplified in the germline genome ofE. burgeri. Furthermore, we have demonstrated that six of these sequences, namely EEEb1–6, are exclusively localized on all 16 E-chromosomes. This has led to the hypothesis that the eight pairs of E-chromosomes are derived from one pair of ancestral chromosomes via multiple duplication events over a prolonged evolutionary period. NGS analysis has recently facilitated the re-assembly of two distinct draft genomes ofE. burgeri, derived from the testis and liver. This advancement allows for the prediction of not only nonrepetitive eliminated sequences but also over 100 repetitive and eliminated sequences, accomplished through K-mer-based analysis. In this study, we report four novel eliminated repetitive DNA sequences (designated as EEEb7–10) and confirm the relative chromosomal localization of all eliminated repeats (EEEb1–10) by fluorescencein situhybridization (FISH). With the exception of EEEb10, all sequences were exclusively detected on EEEb1-positive chromosomes. Surprisingly, EEEb10 was detected as an intense signal on EEEb1-positive chromosomes and as a scattered signal on other chromosomes in germ cells. The study further divided the eight pairs of E-chromosomes into six groups based on the signal distribution of each DNA family, and fiber-FISH experiments showed that the EEEb2–10 family was dispersed in the EEEb1-positive extended chromatin fiber. These findings provide new insights into the mechanisms underlying chromosome elimination and the evolution of E-chromosomes, supporting our previous hypothesis.
Delay of human early development via in vitro diapause
Authors: Iyer Dhanur P. , Weijden Vera A. van der , Khoei Heidar Heidari , McCarthy Afshan , Rayon Teresa , Simon Claire S. , Dunkel Ilona , Wamaitha Sissy E. , Elder Kay , Snell Phil , Christie Leila , Schulz Edda G. , Niakan Kathy K. , Rivron Nicolas , Bulut-Karslioglu Aydan 
Published: May 2023

SUMMARYMany mammals can control the timing of gestation and birth by pausing embryonic development at the blastocyst stage. It is unknown whether the capacity to pause development is conserved, in general across mammals, and more specifically in humans. Activity of the growth regulating mTOR pathway governs developmental pausing in the mouse (1). Here we show a stage-specific capacity to delay the progression of human development via mTOR inhibition. In this context, human blastoids and pluripotent stem cells in naïve and naïve-like, but not primed, states can be induced to enter a dormant state, which is reversible at the functional and molecular level. Comparative analysis of mouse and human naïve cells’ longitudinal response to mTORi revealed distinct temporal dynamics and metabolic requirements of dormancy in each species. Mouse and human blastocysts show similar tissue-specific patterns of mTOR pathway activity, suggesting that the mTOR pathway may be a conserved regulator of blastocyst development and timing in both species. Our results raise the possibility that the developmental timing of the human embryo may be controllable, with implications for reproductive therapies.
Cl--dependent amplification of excitatory synaptic potentials at distal dendrites revealed by voltage imaging
Authors: Morita Masato , Higashi Reo , Kawaguchi Shin-ya 
Published: May 2023

AbstractProcessing of synaptic signals in somatodendritic compartments determines the neuronal computation. Although amplification of excitatory signals by local voltage-dependent cation channels has been extensively studied, its spatio-temporal dynamics in elaborate dendritic branches remains obscure because of technical limitation. Using fluorescent voltage imaging throughout dendritic arborizations in hippocampal pyramidal neurons, here we demonstrate a unique Cl--dependent remote computation mechanism equipped in distal branches. Local laser photolysis of caged-glutamate triggered excitatory postsynaptic potentials spreading along dendrites with gradual amplification toward the distal end whereas with attenuation toward the soma.Tour-de-forcesubcellular patch-clamp recordings from thin branches complemented with biophysical model simulation revealed that the asymmetric augmentation of excitation relies on the TTX-resistant Na+channels and Cl--conductances accompanied with deeper dendritic resting potential. Taken together, the present study unveils cooperative voltage-dependent actions of cation and anion conductances for dendritic supralinear computation which can locally decode the spatio-temporal context of synaptic inputs.
Automatic carrier landing for UAV based on integrated disturbance observer and fault-tolerant control
Authors: Xue Yixuan , Zhen Ziyang , Zhang Zhibing , Cao Teng , Wan Tiancai 
Published: May 2023

Purpose
Accurate glide path tracking is vital to the automatic carrier landing task of unmanned aerial vehicle (UAV). The purpose of this paper is to develop a reliable flight controller that can simultaneously deal with external disturbance, structure fault and actuator fault.

Design/methodology/approach
The automatic carrier landing task is resolved into the glide path tracking problem and attitude tracking problem. The disturbance observer-based adaptive sliding mode control scheme is proposed for system stabilization, disturbance rejection and fault tolerance.

Findings
Both the Lyapunov method and exemplary simulations can prove that the disturbance estimation error and the attitude tracking error converge in finite time in the presence of external disturbances and various faults.

Practical implications
The presented algorithm is testified by a UAV automatic carrier landing simulation, which shows the potential of practical usage.

Originality/value
The barrier function is introduced to adaptively update both the sliding mode observer gain and sliding mode controller gain, so that the sliding mode surface could converge to a predefined region without overestimation. The proposed flight controller ensures a secure carrier landing task.
Investigation of slanted perforation diameter in tabs for supersonic jet control
Authors: G. Ezhilmaran , S. Sekar , K. Sathish Kumar , S. Thanigaiarasu 
Published: May 2023

Purpose
This study aims to investigate the effect of slanted perforation diameter in tabs for the control of Mach 1.4 underexpanded supersonic jet flow characteristics.

Design/methodology/approach
Numerical investigation was carried out for NPR 5 to analyze the effect of slanted perforation diameter in tabs to control the Mach 1.4 jet. Four sets of tabs with slanted circular perforation geometries (Φp = 1, 1.5, 2 and 2.5 mm) were considered in this study. The inclination angle of 20° (αP) with reference to the jet axis was maintained constant for all the four tabs considered.

Findings
Determined value indicates there is a 68%, 71%, 73% and 75% drop in supersonic core for the Φp = 1, 1.5, 2.0 and 2.5 mm, respectively. The results show that the tabs with 2.5 mm perforation diameter were found to be efficient in reducing the supersonic jet core in comparison with other tab cases. The reduction in supersonic core length is due to the extent of miniscule vortices exuviating from slanted small and large diameter perforation in the tabs.

Practical implications
The concept of slanted perforation can be applied in scramjet combustion, which finds its best application in hypersonic vehicles and in noise suppression in fighter aircraft.

Originality/value
Slanted perforation and circular shapes with different diameters have not been studied in the supersonic regime. Examining the effect of circular diameter in slanted perforation is an innovation in this research paper.
Enhancing ICT for female economic participation in sub-Saharan Africa
Authors: Asongu Simplice , Odhiambo Nicholas M. 
Published: May 2023

PurposeThis study investigates how enhancing information and communication technology (ICT) affects female economic participation in sub-Saharan African nations.Design/methodology/approachThree female economic participation indicators are used, namely female labour force participation, female unemployment and female employment rates. The engaged ICT variables are fixed broadband subscriptions, mobile phone penetration and Internet penetration. The Generalized Method of Moments is used for the empirical analysis.FindingsThe following main findings are established: First, there is a (1) negative net effect in the relevance of fixed broadband subscriptions in female labour force participation and female unemployment and (2) positive net effects from the importance of fixed broadband subscriptions on the female employment rate. Secondly, an extended analysis is used to establish thresholds at which the undesirable net negative effect on female labour force participation can be avoided. From the corresponding findings, a fixed broadband subscription rate of 9.187 per 100 people is necessary to completely dampen the established net negative effect. Hence, the established threshold is the critical mass necessary for the enhancement of fixed broadband subscriptions to induce an overall positive net effect on the female labour force participation rate.Originality/valueThis study complements the extant literature by assessing how increasing penetration levels of ICT affect female economic inclusion and by extension, thresholds necessary for the promotion of ICT to increase female economic inclusion.
Bilingual teachers and young children co-constructing affect and play in translanguaging read-alouds
Authors: Beauchemin Faythe , Qin Kongji 
Published: May 2023

PurposeAffect is central to the process of teaching and learning. The recent affective turn in literacy education has further underscored its critical potential as an act of resistance against dehumanizing forces that impact students’ schooling and life experiences (Dutro, 2019; Leander and Ehret, 2019). This article, taking up the notion of affect as relational and performed forces that emerge from the in-betweenness among people, objects and material and discursive contexts, examines how two US Latinx teachers and their young bilingual students co-constructed affect and play in translanguaging read-alouds with a bilingual text that centered their culturally rooted ways of knowing and being.Design/methodology/approachDrawing on data from a larger practitioner research study that aimed at developing teacher candidates’ culturally and linguistically sustaining literacy instruction, the authors took a discourse analytic approach to examine how the two teachers created curricular opportunities for affect and play in designing the translanguaging read-alouds and how bilingual children and their teachers playfully engaged with the bilingual text during the read-alouds.FindingsThe analysis indicated that the teachers’ intentional selection of the Spanish–English bilingual picturebookNiño Wrestles the Worldcreated opportunities for the children to leverage their full linguistic repertoire and funds of knowledge to engage with the text. During the read-alouds, the children and the teachers co-constructed affect and playfulness through embodied performance and translanguaging.Originality/valueThis study contributes to the research and practice of literacy instruction of bilingual children by illustrating how affect figures into the process of literacy instruction and how translanguaging read-alouds can afford bilingual children opportunities to playfully engage with the text that centers their cultural epistemologies.
Familytakāfulpurchase intentions in Bangladesh: the mediating role of attitude and saving motives and the moderating role of religiosity
Authors: Hasan Abdulla Al-Towfiq , Rahman Md Takibur 
Published: May 2023

PurposeThe purpose of this study is to predict family takāful purchase intentions (FTPIs) using an extended theory of planned behavior (TPB) with relevant mediating and moderating factors.Design/methodology/approachThis study is based on a survey of 384 Muslim employees who work in both government and private organizations. This study used partial least square structural equation model (PLS-SEM) for hypothesis testing, predictive relevance and measuring the effect size of the model.FindingsThe study found that attitude (ATT), subjective norms (SN), perceived behavioral control (PBC), saving motives (SM), promotional campaign (PC) and religiosity (RG) directly contribute to the prediction of FTPIs. Furthermore, ATT and SM partially mediate between PC and FTPI. Moreover, RG significantly moderates the association between ATT, SN, SM and FTPI, while RG insignificantly moderates the link between PBC and FTPI.Practical implicationsThis study provides insight into understanding the factors leading to an enhanced understanding of FTPI in a country where the industry is growing very fast. Further, the study suggests informative and persuasive promotions to encourage FTPI in Bangladesh and similar countries.Originality/valueThis study provides insights into previously unaddressed FTPI among Muslim employees in Bangladesh and similar countries. Prior work on determining FTPI has not focused on promotional campaigns and saving motives, and thus, this study has extended TPB to understand the phenomenon.
Deterioration of the subjective financial well-being during the coronavirus pandemic: a latent transition analysis
Authors: Losada-Otálora Mauricio , Peña-García Nathalie , Juliao-Rossi Jorge Luis 
Published: May 2023

PurposeThe authors seek (1) to identify the profiles of subjective financial well-being (SFWB) of bank customers before and during the coronavirus disease 2019 (COVID-19) pandemic, (2) to analyze the transition to profiles of lower SFWB during the pandemic and (3) to identify the factors driving such transitions.Design/methodology/approachThe authors surveyed five countries during 2019 and 2020 to measure SFWB. The authors applied latent class analysis (LCA) to identify profiles of bank customers according to a mix of SFWB indicators in pre-pandemic times (Study 1). The authors validated the profiles during the pandemic and identified the SFWB dimensions that deteriorated during the crisis (Study 2). Finally, the authors applied latent transition analysis (LTA) to explore transitions to profiles of lower SFWB and identify the drivers.FindingsThe authors identified three profiles of customers in pre- and post-pandemic periods for four dimensions of SFWB: control over finances, capacity to absorb financial shocks, ability to track financial goals and financial freedom. Gender, age, trust in banks and bank-supporting policies were related to transitions across profiles of SFWB during the pandemic. These relationships are contingent upon contextual country-related variables.Research limitations/implicationsBanks and policymakers should reduce customers' exposure to the pandemic's long-lasting adverse effects on SFWB and should identify and control the multiplier role that contextual variables play.Originality/valueExtant literature has not fully identified the dimensions of SFWB that changed due to the COVID-19 pandemic. The authors narrow this gap by identifying three SFWB profiles of customers, analyzing the patterns of SFWB change and connecting these changes to individual, provider and contextual factors.
Optimization of a photovoltaic system: a case study Kosovo
Authors: Bylykbashi Blerina , Filkoski Risto Vasil 
Published: May 2023

Purpose
The purpose of this study is optimization of existing PV system and by making the optimization to reach the heights energy performance from the system.

Design/methodology/approach
The methodology used in this work is analytical as well as software using PV*SOL premium software. Both methods are used to achieve a more realistic analysis of the results achieved at the end of the work.

Findings
After analyzing the optimization of the PV system in terms of certain atmospheric conditions, it is clear that the optimization of the system is necessary. Through the optimization of the systems, a better performance of the system is achieved, as well as in the case in question, it affects the increase of the energy generated annually up to 500 kWh.

Originality/value
This work is the original work of the author, which represents a part of the topic of the doctorate.
Mandatory CSR disclosure and CEO pay performance sensitivity in China: evidence from a quasi-natural experiment
Authors: Song Siwen , Cheung Adrian (Wai Kong) , Jun Aelee , Ma Shiguang 
Published: May 2023

PurposeThis paper aims to empirically examine the impact of mandatory CSR disclosure on the CEO pay performance sensitivity.Design/methodology/approachUsing the mandatory requirement of CSR disclosure as an exogenous shock, the authors compare the changes in CEO pay performance sensitivity for treatment firms with control firms through a difference-in-difference (DiD) approach.FindingsThe authors find that mandatory CSR disclosure enhances CEO pay performance sensitivity. The results also show that monitoring CEO power is a conduit through which mandatory CSR disclosure affects CEO pay performance sensitivity. The positive impact is more profound in firms with a powerful CEO, i.e. one who is politically well-connected, holds dual roles as both CEO and Chairman, and/or has had a long tenure. Furthermore, the increased CEO pay performance sensitivity after the mandate is prominent among state-owned enterprises (SOEs) only.Practical implicationsThe findings of this paper have implications for other economies with similar institutional backgrounds as China. Although the mandatory CSR disclosure does not require firms to spend on CSR investment, the mandatory CSR disclosure alters firm behaviour, and mitigates agency problems.Originality/valueThis paper contributes to the studies on the impact of CSR disclosure on firms' behaviour. To the authors' knowledge, this is the first study to examine the effects of mandatory CSR disclosure on CEO pay performance sensitivity using the quasi-natural experiment settings.
What is the right purchasing strategy for your company? The fit between strategic intent, strategic purchasing and perceived environmental uncertainty
Authors: Patrucco Andrea S. , Luzzini Davide , Krause Daniel , Moretto Antonella Maria 
Published: May 2023

PurposeThe authors empirically examine purchasing strategy typologies based on strategic intent (i.e. competitive priorities) and practices used to achieve these priorities. The authors further investigate the implementation conditions of such strategies based on perceived uncertainty and strategic purchasing.Design/methodology/approachThe authors utilize case study data from 11 international service and manufacturing firms with global supply chains. Each company was profiled based on the level of perceived environmental uncertainty, the characteristics of strategic purchasing, the use of relevant purchasing practices and its ability to create value through purchasing.FindingsThe study findings show that four purchasing strategy types exist: Purchasing Rationalization, Supply Base Optimization, Purchasing as a Service and World-Class Supply Base Management. Lower levels of perceived environmental uncertainty favor the adoption of rationalization strategies (i.e. Purchasing Rationalization and Supply Base Optimization), while increased uncertainty leads companies to switch to relationship-focused strategies (i.e. Purchasing as a Service and World-Class Supply Base Management). Further, that specific components of strategic purchasing (i.e. strategic planning, maturity, status and report level) enable the successful implementation of different strategy types.Originality/valueThis research contributes to the existing literature by outlining the different types of purchasing strategies and the external and internal factors that need to be considered to achieve strategic alignment and value creation in purchasing, and by classifying purchasing strategy types at the functional level based on empirical evidence.
Working capital and firm performance: role of COVID-19 disruption
Authors: Pant Pushpesh , Rathore Pradeep , Dadsena Krishna kumar , Shandilya Bhaskar 
Published: May 2023

PurposeThis study examines the performance effect of working capital for a large sample of Indian manufacturing firms in light of supply chain disruption, i.e. the COVID-19 pandemic.Design/methodology/approachThis study is based on secondary data collected from the Prowess database on Indian manufacturing firms listed on the Bombay Stock Exchange (BSE) 500. Panel data regression analyses are used to estimate all models. Moreover, this study has employed robust standard errors to consider for heteroscedasticity concerns.FindingsThe results challenge the current notion of working capital investment and reveal that higher working capital has a positive and significant impact on firm performance. Further, it highlights that Indian manufacturing firms suffered financially post-COVID-19 as they significantly lack the working capital to run day-to-day operations.Originality/valueThis research contributes to the scant literature by examining the association between working capital financing and firm performance in light of the COVID-19 pandemic, representing typical developing economies like India.
Synthesis of ZnFe2O4@MoS2 core-shell nanocomposites with enhanced lubrication performance as lubricant additives
Authors: Li Ting , Chen Xianggang , Wang Junhai , Zhang Lixiu , Li Xinran , Wei Xiaoyi 
Published: May 2023

Purpose
The purpose of this study is to prepare ZnFe2O4 nanospheres, sheet MoS2 and three ZnFe2O4@MoS2 core-shell composites with various shell thicknesses, and add them to the base oil for friction and wear tests to simulate the wear conditions of hybrid bearings.

Design/methodology/approach
Through the characterization and analysis of the morphology of wear scars and the elemental composition of friction films, the tribological behavior and wear mechanism of sample materials as lubricant additives were investigated and the effects of shell thickness and sample concentration on the tribological properties of core–shell composite lubricant additives were discussed.

Findings
The findings demonstrate that each of the five sample materials can, to varying degrees, enhance the lubricating qualities of the base oil and that the core–shell nanocomposite sample lubricant additive has superior lubricating properties to those of ZnFe2O4 and MoS2 alone, among them ZnFe2O4@MoS2-2 core–shell composites with moderate shell thickness performed most ideally. In addition, the optimal concentration of the ZnFe2O4@MoS2 lubricant additive was 0.5 Wt.%, and a concentration that was too high led to particle deposition and affected the friction effect.

Originality/value
In this work, ZnFe2O4@MoS2 core–shell composites were synthesized for the first time using ZnFe2O4 as the carrier and the lubrication mechanism of core–shell composites and single materials were compared and studied, which illustrated the advantages of core–shell composite lubricant additives. At the same time, the influence of different shell thicknesses on the lubricant additives of core–shell composites was studied.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-12-2022-0367/