bluuebunny/crossref_metadata_2025_split huggingface dataset:
Casein kinase II promotes piRNA production through direct phosphorylation of USTC component TOFU-4
Authors: Zhang Gangming , Zheng Chunwei , Ding Yue-he , Mello Craig 
Published: August 2023

AbstractPiwi-interacting RNAs (piRNAs) are genomically encoded small RNAs that engage Piwi Argonaute proteins to direct mRNA surveillance and transposon silencing. Despite advances in understanding piRNA pathways and functions, how the production of piRNA is regulated remains elusive. Here, using a genetic screen, we identify casein kinase II (CK2) as a factor required for piRNA pathway function. We show that CK2 is required for the localization of PRG-1 and for the proper localization of several factors that comprise the ‘upstream sequence transcription complex’ (USTC), which is required for piRNA transcription. Loss of CK2 impairs piRNA levels suggesting that CK2 promotes USTC function. We identify the USTC component twenty-one-U fouled-up 4 (TOFU-4) as a direct substrate for CK2. Our findings suggest that phosphorylation of TOFU-4 by CK2 promotes the assembly of USTC and piRNA transcription. Notably, during the aging process, CK2 activity declines, resulting in the disassembly of USTC, decreased piRNA production, and defects in piRNA-mediated gene silencing, including transposons silencing. These findings highlight the significance of posttranslational modification in regulating piRNA biogenesis and its implications for the aging process. Overall, our study provides compelling evidence for the involvement of a posttranslational modification mechanism in the regulation of piRNA biogenesis.
ISWI1 complex proteins facilitate developmental genome editing inParamecium
Authors: Singh Aditi , Häußermann Lilia , Emmerich Christiane , Nischwitz Emily , Seah Brandon KB , Butter Falk , Nowacki Mariusz , Swart Estienne C. 
Published: August 2023

AbstractChromatin remodeling is required for essential cellular processes, including DNA replication, DNA repair, and transcription regulation. The ciliate germline and soma are partitioned into two distinct nuclei within the same cell. During a massive editing process that forms a somatic genome, ciliates eliminate thousands of DNA sequences from a germline genome copy in the form of internal eliminated sequences (IESs). Recently we showed that the chromatin remodeler ISWI1 is required for somatic genome development in the ciliateParamecium tetraurelia. Here we describe two paralogous proteins, ICOP1 and ICOP2, essential for DNA elimination. ICOP1 and ICOP2 are highly divergent from known proteins; the only domain detected showed distant homology to the WSD motif. We show that both ICOP1 and ICOP2 interact with the chromatin remodeler ISWI1. UponICOPknockdown, changes in alternative IES excision boundaries and nucleosome densities are similar to those observed forISWI1knockdown. We thus propose that a complex comprising ISWI1 and either or both ICOP1 and ICOP2 are needed for chromatin remodeling and accurate DNA elimination inParamecium.
Hyphal exploration strategies and habitat modification of an arbuscular mycorrhizal fungus in microengineered soil chips
Authors: Hammer Edith C. , Arellano-Caicedo Carlos , Mafla-Endara Paola Micaela , Kiers E. Toby , Shimizu Tom , Ohlsson Pelle , Aleklett Kristin 
Published: August 2023

AbstractArbuscular mycorrhizal fungi (AMF) are considered ecosystem engineers, however, the exact mechanisms by which they modify and influence their immediate surroundings are largely unknown and difficult to study in soil. In this study, we used microfluidic chips, simulating artificial soil structures, to study foraging strategies and habitat modification ofRhizophagus irregularisin symbiotic state associated to carrot roots. Our results suggest that AMF hyphae forage over long distances in void spaces, prefer straight over tortuous passages, anastomose and show strong inducement of branching when encountering obstacles. We observed bi-directional vesicle transport inside active hyphae and documented strategic allocation of biomass within the mycelium e.g., truncated hyphal growth and cytoplasm retraction from inefficient paths. We foundR. irregularisable to modify pore-spaces in the chips by producing irregularly shaped spores that filled up pores. We suggest that studying AMF hyphal behaviour in spatial settings can explain phenomena reported at bulk scale such as AMF modification of water retention in soils. The use of microfluidic soil chips in AMF research opens up novel opportunities to under very controlled conditions study ecophysiology and interactions of the mycelium with both biotic and abiotic factors.
Crevice corrosion behavior and mechanism of laser additive manufacturing nickel-based alloy under wedge-shaped crevice by using wire beam electrode
Authors: Xi Yuchen , Wang Qinying , Wu Yafei , Zhang Xingshou , Dong Lijin , Bai ShuLin , Yang Yi 
Published: August 2023

Purpose
The purpose of this study is to investigate the crevice corrosion behavior and mechanism of laser additive manufacturing (LAM) nickel-based alloy under wedge-shaped crevice.

Design/methodology/approach
First, the opening size of the wedge-shaped crevice was designed to 0.1, 0.3 and 0.5 mm by controlling the thickness of silicon rubber and the double-side adhesive tape. Then, one side of the glass sheet was stuck on the silicon strip and keep the electrodes of Rows 1 and 2 outside the crevice as a reference, and the opposite side was stuck to the wire beam electrode by silica gel.

Findings
The current density with a maximum value of 5.7 × 10−6 A/cm2 was observed at the crevice opening of 0.5 mm, while the lowest value of 9.2 × 10−7 A/cm2 was found at the crevice opening of 0.1 mm. In addition, the corrosion resistance at the inside of the crevice is higher than that at the outside and the middle of the crevice. It means that the internal width of the wedge-shaped crevice tends toward 0, which hinders the migration of ions in the corrosive medium. The generation of corrosive products further reduce the crevice size to cause the inhibition of corrosion at the inside of the crevice as well.

Originality/value
The multilayer and multipath LAM component is prepared to show the complex microstructure, which made the corrosion behavior and mechanism at wedge-shaped crevice nondeterminacy.
Who should retain the service tips? Tips retention practices and the British customers’ returning intention to the same Indian restaurants
Authors: Hosain Md. Sajjad 
Published: August 2023

Purpose
Service tip is an optional gift that is given by the customers to the waiters (or any other service staffs) for their services. Although the service tips are given to the waiters or service staffs, many restaurant owners or managements take away such gifts from the service staffs. This paper aims to identify the relationship between tips retention practice (TRP) and returning intention (RI) of the British customers to the same Indian restaurants for dining once they know that such tips are retained by the owners not by the service staffs. TRP was further divided into positive TRP (service staffs retaining the tips) and negative TRP (owners or management retaining the tips). The study further used a moderating variable (Female Customers’ Role) to test the moderating effect on the direct relationship.

Design/methodology/approach
The author purposively selected 1,223 British diners who take dining services at different Indian restaurants and used a structured survey instrument to collect primary data from those selected respondents. The author used SPSS 25 for descriptive statistics and a covariance-based structural equation modeling through AMOS 25.

Findings
Based on survey responses and proper statistical analysis, it was revealed that a positive TRP has a significant positive relationship with positive RI, whereas a negative TRP also has a significant positive relationship with negative RI. The results further disclosed that such a relationship can be strengthened by the Female Customers’ Role, that is, female diners are particularly reluctant in returning to those Indian restaurants where they experience a negative TRP.

Originality/value
This is one of the few empirical research attempts that have tried to reveal the dining customers’ intention toward TRPs. The author expects that the study results will contribute to upcoming investigations focusing on TRPs and policies. The author further anticipates that the study findings will guide the Indian restaurant managements in shaping their TRPs and policies.
Thermal analysis for foreign objects in high-power wireless power transfer systems
Authors: Tiemann Myrel , Clemens Markus , Schmuelling Benedikt 
Published: August 2023

Purpose
This paper aims to present a fast and modular framework implementation for the thermal analyses of foreign metal objects in the context of wireless power transfer (WPT) to evaluate whether they pose a hazard to the system. This framework serves as a decision-making tool for determining the necessity of foreign object detection in certain applications and at certain transmitted power levels.

Design/methodology/approach
To assess the necessity of implementing foreign object detection, the considered WPT system is modeled, and Arnoldi-Krylov-based model order reduction is applied to generate separate reduced models of the ground and vehicle modules of the WPT system. This enables interoperable evaluations to be conducted. Further discussion on the implementation details of the system-level simulations used to evaluate the electrical and thermal characteristics is provided. The resulting modular implementation allows for efficient evaluation of the thermal behavior of the wireless charging system at various transferred power levels and under various boundary conditions.

Findings
Based on the transferred power level, the WPT model, the relative positioning between the vehicle and the charging pad and the charging time, it may be necessary to divide the area of the charging pad into multiple regions for the purpose of implementing foreign object detection.

Originality/value
While the tools and fundamentals of thermal analysis are widely known and used, their application to high-power WPT systems for electric vehicles has not yet been thoroughly discussed in this form in the literature. The approach presented in this paper is not limited to the specific WPT model discussed but rather is directly applicable to other WPT models as well.
Benefits of IPSAS and their differences from IFRS: a discussion paper
Authors: Rompotis Gerasimos , Balios Dimitris 
Published: August 2023

PurposeThis paper tries to shed light on the international progress regarding the adoption of International Public Sector Accounting Standards (IPSAS), to accentuate the benefits resulting from the application of IPSAS, and to highlight the main differences between IPSAS and IFRS.Design/methodology/approachA comprehensive literature review is conducted which focuses on issues concerning the factors that induce the adoption of IPSAS, the obstacles that must be overcome, the degree of IPSAS’ proliferation worldwide, the repercussions from adopting IPSAS, the benefits of IPSAS, and the differences between IPSAS and IFRS. The selection process of the cited articles focuses on journals with high rankings in the ABS list.FindingsIt is accentuated that IPSAS carry significant benefits regarding the improved quality of the financial information reported by the public sector, the enhancement of transparency and accountability, the upgrading of the decision-making process and the restored trust in public finances. However, there is more work that needs to be done toward the global proliferation of IPSAS.Practical implications This study provides insights regarding the implementation process of IPSAS, which should be useful to all the parties engaged in the reform of the public administration, such as national governments, local or international regulators, accounting standard setters and institutional organizations.Originality/valueThe current study clarifies whether the public sector should move from using the business focused IFRS, as it is frequently the case, to the adoption of IPSAS. In addition, this study comprehensive literature review can be used by academics and researchers as a basis for further research on the issue. More importantly, policymakers and other officials who need to make informed decisions about financial reporting issues at the government level and the public sector in general can benefit from this study.
Stock price prediction using a novel approach in Gaussian mixture model-hidden Markov model
Authors: Gopinathan Kala Nisha , Murugesan Punniyamoorthy , Jeyaraj Joshua Jebaraj 
Published: August 2023

PurposeThis study aims to provide the best estimate of a stock's next day's closing price for a given day with the help of the hidden Markov model–Gaussian mixture model (HMM-GMM). The results were compared with Hassan and Nath’s (2005) study using HMM and artificial neural network (ANN).Design/methodology/approachThe study adopted an initialization approach wherein the hidden states of the HMM are modelled as GMM using two different approaches. Training of the HMM-GMM model is carried out using two methods. The prediction was performed by taking the closest closing price (having a log-likelihood within the tolerance range) to that of the present one as the closing price for the next day. Mean absolute percentage error (MAPE) has been used to compare the proposed GMM-HMM model against the models of the research study (Hassan and Nath, 2005).FindingsComparing this study with Hassan and Nath (2005) reveals that the proposed model outperformed in 66 out of the 72 different test cases. The results affirm that the model can be used for more accurate time series prediction. Further, compared with the results of the ANN model from Hassan's study, the proposed HMM model outperformed 24 of the 36 test cases.Originality/valueThe study introduced a novel initialization and two training/prediction approaches for the HMM-GMM model. It is to be noted that the study has introduced a GMM-HMM-based closing price estimator for stock price prediction. The proposed method of forecasting the stock prices using GMM-HMM is explainable and has a solid statistical foundation.
A conceptual model for pull implementation based on the dimensions leadership, organization, operation and people
Authors: Araújo Ariana , Alves Anabela Carvalho , Romero Fernando 
Published: August 2023

Purpose
This paper aims to present a conceptual model, called LOOP, an acronym for Leadership, Organization, Operation and People, regarding the pull system implementation in Lean companies. Lean should be holistically implemented to achieve the performance for what it is known. Pull is one of the Lean thinking principles, and it is the production control system underneath the Lean philosophy. However, to implement pull, an organizational transformation in companies’ different areas is needed.

Design/methodology/approach
This model was developed following up a case study of a representative example of a multinational company which has been implementing Lean for a long time but without achieving a well-succeeded pull implementation.

Findings
Based on that, the authors developed the LOOP model that is an integrated framework with the goal to promote a Lean culture, which includes four dimensions: leadership, organization, operation and people.

Originality/value
Based on the LOOP conceptual model, a different, and hopefully more effective, perspective is presented, establishing some proposals for the four dimensions and for the production and control system selection criteria to implement Lean.
Impact of ISO 14001 and ISO 9001 adoption on corporate performance: evidence on a bank-based system
Authors: Neves Maria Elisabete Duarte , Reis Sofia , Reis Pedro , Dias António Gomes 
Published: August 2023

PurposeThis paper aims to analyze the impact of the adoption of ISO 14001 and ISO 9001 on the performance of Portuguese companies. The sample includes the companies listed on Euronext Lisbon, with economic, financial and specific information – the specific being environmental information and quality information – for the period between 2015 and 2019, which corresponds to the post-Troika period when some economic growth started to be witnessed. The specific information of each area is translated into the environmental certification by the ISO 14001 standard, the quality certification by the ISO 9001 standard, and sustainability reports.Design/methodology/approachTo achieve this aim, four variables were used as a measure of the companies' performance, Return on Assets (ROA), Return on Equity (ROE); Tobin's Q and EBITDA Margin. With this data, different panel models were tested to validate if ISO 9001 and ISO 14001 certifications impact Portuguese listed companies performance. Specifically, the authors have used the Generalized Method of Moments, GMM-System, an estimation method proposed by Arellano and Bover (1995) and Blundell and Bond (1998).FindingsThe results show that, in general, the environment and quality variables fail to explain the dependent variables, that is, ISO certifications do not provide positive or negative variations in the performance of companies, suggesting that they are not yet as much for civil society, as well as for current or potential shareholders. When used as an independent variable, certification according to the ISO 14001 or 9001 standards, negative and significant oscillations were verified in the dependent variable, MgEBITDA, suggesting that only for managers this variable is determinant, but with a negative impact, given the high costs, it entails without pressure from other stakeholders.Originality/valueThis study is the first to analyze the impact of the adoption of ISO 14001 and ISO 9001 on Portuguese companies' performance. This empirical study aims to show all investors, managers, regulators and civil society itself the long path that still needs to be taken toward sustainability.
Modelling the barriers to blockchain implementation in human resource function
Authors: Agarwal Alpana , Kapoor Komal , Walia Sandeep 
Published: August 2023

PurposeThe aim of this paper is to explore and analyse the challenges in effective implementation of blockchain by human resource management (HRM) functions. This paper also aims to assess the interplay between the barriers in causing the challenges during blockchain execution.Design/methodology/approachTen barriers are discovered from the past studies. Based on the expert views on the identified barriers interpretive structural modelling (ISM) is administered to understand the interplay of these 10 challenges resulting in ineffective or non-implementation of HR blockchain.FindingsThe application of ISM has helped in categorizing the variables into strategic, operational and performance outcomes. Results of ISM indicate key barriers like lack of expertise, data privacy, technical infeasibility, complexity in implantation and lack of used cases.Research limitations/implicationsThe research is limited to 10 barriers. There can be other barriers that can also be studied. Second, the research is proposing a conceptual model that needs further validation.Practical implicationsThis paper has significant implications for the theoretical and practical body of knowledge. So far, most studies are exploring and describing HRM from a digital perspective. Most HR studies are on artificial intelligence, the Internet of Things and smart HRM. Previous studies on blockchain for HRM are mostly describing the advantages of going for it.Social implicationsBased on the findings, it can also be suggested that policy formulators must advance the technical regulatory framework. Blockchain technology can be effectively implemented only if the top management is committed to it because they can only frame the rules and right control framework, affirm the governance process and strategize improvement.Originality/valueThe study offers insights into the organization's decision makers for effectively implementing blockchain into their HR systems. Some specific recommendations based on the results are also made. The paper is an innovative attempt to analyse the barriers to HR blockchain.
The representation of sustainability among university teachers: knowing the present to change the future
Authors: Yarritu Ion , Idoiaga Mondragon Nahia , Axpe Saez Inge , Arriaga Cristina 
Published: August 2023

Purpose
The educational community – particularly higher education – should contribute to the new generation’s understanding of what sustainability entails. To do this, teachers must be aware of the need for education for sustainability. However, little is known about how university teachers understand or represent sustainability. This study aims to bridge the gap identified in the literature concerning university teachers’ representation of sustainability.

Design/methodology/approach
A total of 403 teachers from the University of the Basque Country participated in the study through a free association exercise based on the grid elaboration method.

Findings
In general terms, teachers are aware of the three dimensions that constitute sustainability, but differences were found in the way sustainability was represented depending on several factors such as the teaching field, previous knowledge of the 2030 Agenda and gender. Despite awareness of the need to incorporate sustainability, there was also reticence toward the way in which sustainability is being addressed in higher education. Those results were discussed considering the previous literature on sustainability.

Practical implications
The results allow the authors to conclude that knowledge of the 2030 Agenda leads teachers to have a more complete representation and greater recognition of sustainability. Thus, it would be necessary for universities to offer more training to teachers to promote a holistic understanding of sustainability and facilitate its incorporation into teaching.

Originality/value
The use of this method made it possible to collect, in a less biased and much more direct way, the teachers’ voices, to know the type of representation (holistic) or partial (only one of its dimensions: environmental, economic or social) that they have of sustainability, and to check whether their representation was linked to specific factors.
The role of parent brand creating loyalty and acceptance toward premium extended wine brand: a cross-national study
Authors: Le Hoang Tran Phuoc Mai , Ren Tianbao , Park Jungkun 
Published: August 2023

Purpose
This paper aims to investigate the key characteristics of parent brands and the relationships among customer perceived value (a second-order construct containing financial, functional, individual and social attributes), parent brand loyalty and the willingness to pay for a premium extended brand. Moreover, the moderating effect of self–brand integration on the influences in the model is examined.

Design/methodology/approach
Data were collected in two countries, the USA (n = 535) and China (n = 511), through an online survey. Structural equation modeling and a multi-group analysis were used to analyze the data.

Findings
The results show that perceived quality and premium brand authenticity are two important predictors of perceived value. The relationships among perceived value, parent brand loyalty and willingness to pay for an extended premium brand were significantly supported. In addition, self–brand integration was found to moderate the relationship between perceived value and loyalty to the parent brand.

Practical implications
Wine marketers and managers can use recommendations to establish effective brand extension strategies to help the industry know what essential characteristics of a parent brand to focus on and maintain sustainable development through the customer–extended brand relationship.

Originality/value
Previous researchers have discussed wine consumption behaviors or branding strategies. By limiting combining two theories (flow theory and the theory of planned behavior), this paper proposes a chain of behaviors to optimize customer experience to develop a brand extension strategy based on key characteristics of the parent brand.