bluuebunny/crossref_metadata_2025_split huggingface dataset:
Soaring electricity prices in the day-ahead Iberian market: policy insights, regulatory challenges and lack of system flexibility
Authors: Bento Pedro , Mariano Sílvio , Carvalho Pedro , Calado Maria do Rosário , Pombo José 
Published: April 2023

Purpose
This study is a targeted review of some of the major changes in European regulation that guided energy policy decisions in the Iberian Peninsula and how they may have aggravated the problem of lack of flexibility. This study aims to assess some of the proposed short-term solutions to address this issue considering the underlying root causes and suggests a different course of action, that in turn, could help alleviate future market strains.

Design/methodology/approach
The evolution of the most important (macro) energy and price-related variables in both Portugal and Spain is assessed using market and grid operator data. In addition, the authors present critical viewpoints on some of the most recent EU and national regulation changes (official document analysis).

Findings
The Iberian energy policy and regulatory agenda has successfully promoted a rapid adoption of renewables (main goal), although with insufficient diversification of generation technologies. The compulsory closings of thermal plants and an increased tax (mainly carbon) added pressure toward more environmentally friendly thermal power plants. However, inevitably, this curbed the bidding price competitiveness of these producers in an already challenging market framework. Moving forward, decisions must be based on “a bigger picture” that does not neglect system flexibility and security of supply and understands the specificities of the Iberian market and its generation portfolio.

Originality/value
This work provides an original account of unprecedented spikes in energy prices in 2021, specifically in the Iberian electricity market. This acute situation worries consumers, industry and governments. Underlining the instability of the market prices, for the first time, this study discusses how some of the most important regulatory changes, and their perception and absorption by involved parties, contributed to the current environment. In addition, this study stresses that if flexibility is overlooked, the overall purpose of having an affordable and reliable system is at risk.
Value relevance of financial risk disclosures
Authors: Menezes da Costa Neto Arlindo , Oliveira Atelmo Ferreira de , Silva Aline Moura Costa da , Barbosa Alexandro 
Published: April 2023

PurposeThe objective of the present study is to examine the value relevance of accounting information presented by Brazilian banks.Design/methodology/approachThe studied sample derived from Brazil’s Stock Exchange, B3, under the banking segment, resulting in a group of 24 publicly listed companies, whose data ranged from 2017 to 2019. The study was conducted using the disclosure index, made with the intent of evaluating the disclosure adherence of a company to the reporting standard. In this case, Comitê de Pronunciamentos Contábeis (CPC) 40, financial instruments: recognition, evaluation and disclosure, Instrumentos Financeiros: Evidenciação, Brazil’s interpretation of the International Financial Reporting Standards (IFRS) 7.FindingsThe results show that for the sample and period, the disclosure index cannot be used as an explanatory variable for the market evaluation of financial institutions.Originality/valueWhile other studies have presented a similar approach to the value-relevance theme, the present work is original as it develops the methodology on financial institutions, and even more so on the financial institutions of a developing country.
Why do households repay their debt in UK during the COVID-19 crisis?
Authors: Mamatzakis Emmanuel , Tsionas Mike G. , Ongena Steven 
Published: April 2023

PurposeIn this paper, the authors investigate whether coronavirus disease 2019 (COVID-19) impacts household finances, like household debt repayments in the UK.Design/methodology/approachThis paper employs a vector autoregressive (VAR) model that nests neural networks and uses Mixed Data Sampling (MIDAS) techniques. The authors use data information related to COVID-19, financial markets and household finances.FindingsThe authors' results show that household debt repayments' response to the first principal component of COVID-19 shocks is negative, albeit of low magnitude. However, when the authors employ specific COVID-19-related data like vaccines and tests the responses are positive, insinuating the underlying dynamic complexities. Overall, confirmed deaths and hospitalisations negatively affect household debt repayments. The authors also report low persistence in household debt repayments. Generalised impulse response functions (IRFs) confirm the main results. As draconian measures, the lockdowns are eased and the COVID-19 shocks are diminishing, and household financial data converge to the levels prior to the pandemic albeit with some lags.Originality/valueTo the best of the authors' knowledge, this is the first study that examines the impact of the pandemic on household debt repayments. The authors' findings show that policy response in the future should prioritise innovation of new vaccines and testing.
Modeling the key attributes for improving customer repurchase rates through mobile advertisements using a Fuzzy mixed approach
Authors: Nalluri Venkateswarlu , Mayopu Richard G. , Chen Long-Sheng 
Published: April 2023

PurposeDue to the high use of mobile devices, the market share of mobile advertisements (Ads) is significantly growing. Although mobile Ads can contact potential customers at any time and in any location depending on their unique demands, one of the biggest problems for advertisers is how to improve customer repurchases with their Ads. The development and empirical support of customer repurchase through mobile Ads context have not been addressed. Therefore, the purpose of this paper is to define and identify the key attributes of customer repurchase in a mobile Ads context.Design/methodology/approachIn this research, the set of attributes was derived from a systematic literature review and finalized by applying the Fuzzy Delphi method. To develop a hierarchical model and classify the cause/effect groups among identified key attributes, the Fuzzy mixed approach uses a combination of Fuzzy interpretive structural modeling-decision-making trial and evaluation laboratory.FindingsThe findings suggest that language, type of website and social media are classified to as essential attributes for improving customer repurchase through mobile Ads.Research limitations/implicationsThe focus of the current research is limited to identify and develop the hierarchical interrelationships between customer repurchase attributes that are unique to the mobile Ads business context. Additional research may be conducted for various media contexts and other products/services categories.Originality/valueThis study illustrated how multicriteria decision-making techniques could be used effectively using Fuzzy theory to explore the research area of customer repurchase in mobile Ads concept.
Internationalization under attack: the external threat of short sellers
Authors: Xu Le , Drori Netanel 
Published: April 2023

Purpose
The purpose of this paper is to examine the role of short sellers in foreign direct investment (FDI) decisions. Drawing on threat rigidity theory, the authors argue that short sellers pose a threat to chief executive officers (CEOs) by exerting downward pressure to target firms’ stock prices. That threat will evoke rigid managerial responses that hinder new FDI activities. The authors also posit that CEOs will be less reactive to short sellers’ threats when they are generalist CEOs who have extensive general work experience or when they serve as the board chair.

Design/methodology/approach
The authors collect data from S&P 1,500 firms, and the final sample consists of 717 firms and 6,930 firm-year observations from 1998 to 2016. The authors use an Arellano and Bond generalized method of moments static linear probability panel data model and an instrumental panel count data model to test the hypotheses.

Findings
The findings support the hypotheses and suggest that CEOs who are under more pressure from short sellers engage in fewer new FDI activities. The negative impact of short sellers on FDI decisions is less salient when CEOs have general work experience or are the chairperson of the board.

Originality/value
This study contributes to the international business research by stressing the need to consider the role of short sellers in firm internationalization decisions.
Assessing value chain acquisitions that support differentiation innovation initiatives: lessons from Apple
Authors: Davidson Alistair 
Published: April 2023

Purpose
Apple's strategy for adding value through open innovation and acquisitions is documented.

Design/methodology/approach
Historical review.

Findings
Use of open innovation to add value. A three part strategy for acquisitions.

Research limitations/implications
Focus on Apple.

Practical implications
Strategies for open innovation.

Originality/value
First review of Apple acquisition strategy.
Evaluation of seawater monitoring for the detection of Escherichia coli and Enterococcus faecalis on an integrated biosensor system
Authors: Kotsiri Zoi , Vantarakis Apostolos 
Published: April 2023

Purpose
This study aims to monitor seawater by determing two biological indicators, Escherichia coli and Enterococcus faecalis. The process of following standard procedures is mainly time-consuming. Thus, there is a demand for a biosensor, an appropriate device for rapid and accurate results that can give information about the microbiological quality of seawater in an effective and rapid way.

Design/methodology/approach
In the gold standard method for seawater monitoring, the filter method is applied as a condensation step. In this work, the authors evaluated six types of common syringe filters for bacteria concentration and then the best filter was used for seawater analysis for E. coli and Enterococci with loop-mediated isothermal amplification (LAMP) polymerase chain reaction (PCR).

Findings
Cellulose acetate filter had the highest efficiency (98%) for bacterial concentration. The limit of detection of the LAMP method was 104/1,000 mL for both E. coli and E. faecalis. The proposed method could be used for the development of seawater biosensors with advantages such as a simple heating element and the speed that the LAMP PCR presents.

Originality/value
The suggested protocol is proposed in an integrated in situ system, a biosensor, for seawater quality determination.
The effect of accreditation on higher education performance through quality culture mediation: the perceptions of administrative and quality managers
Authors: Iqbal Shahzaf , Taib Che Azlan Bin , Razalli Mohd. Rizal 
Published: April 2023

PurposeThis study aims to examine the effect of accreditation on higher education performance, directly and indirectly, through the quality culture as a mediator in the context of higher education, based on the perceptions of administrative and quality managers.Design/methodology/approachThis is a quantitative study using stratified random sampling techniques to collect data through a nationwide survey of universities in Pakistan. Of the 150 questionnaires distributed, 105 are found to be valid, while the data are analyzed by partial least squares structural equation modeling (PLS-SEM).FindingsThe results provide interesting insights, including significant effects of accreditation on quality culture and higher education performance, significant effects of quality culture on higher education performance and the mediating role of quality culture in relation to accreditation and higher education performance.Research limitations/implicationsLimitations of the study include a relatively smaller sample size and the selection of administrative managers as the sole respondents. This study extends the theoretical understanding by introducing several linkages, including the link between accreditation and higher education performance, accreditation and quality culture, and by introducing quality culture as a mediator. Furthermore, the study also provides empirical evidence for all proposed links in the university setting. This study has implications for administrative and quality managers, in terms of effectively implementing accreditation standards by cultivating a quality culture at their respective universities, resulting in improved university performance.Originality/valueThis study is the first to introduce quality culture as a mediator between accreditation and higher education performance and examines the effect of accreditation and quality culture on higher education performance in the university context. Also, the interdisciplinary nature of the study makes it relevant and interesting to administrative and quality managers in the fields of higher education and quality management.
Osteomodulin contributes to keloid development by regulating p38 MAPK signaling
Authors: Li Qiuchen , Chen Huaxia , Liu Yanxin , Bi Jianhai 
Published: April 2023

AbstractA keloid is a classic fibrotic skin disease characterized by excessive deposition of extracellular matrix (ECM). Osteomodulin (OMD) is a heterologous protein that is a part of osteoadherin and plays a role in modulating ECM deposition. In this study, we investigated the effects of OMD on ECM synthesis and the tumor‐like phenotype of keloid fibroblasts. We enrolled 10 patients with keloids and 10 age‐ and sex‐matched healthy individuals, whose keloid or normal skin tissues were collected during surgery. Real‐time quantitative polymerase chain reaction (qRT‐PCR), western blotting, and immunohistochemical staining were performed to analyze OMD expression in skin tissues. Cell transfection, CCK‐8 assay, EdU staining, Transwell assay, qRT‐PCR, western blotting, and immunofluorescence were performed to study the effects of OMD on primary keloid‐derived fibroblasts (KFs). OMD exhibited greater expression in human keloid specimens than in normal skin tissues. Consistently, higher expression of OMD was observed in KFs, compared to that in normal fibroblasts. Silencing OMD expression in transforming growth factor (TGF)‐β1‐treated KFs inhibited cell proliferation and migration, as well as collagen and fibronectin expression; however, overexpression of OMD had the opposite effect. p38 mitogen‐activated protein kinase (MAPK) was activated in keloid tissues but not in normal skin. OMD was positively correlated with p38 MAPK activation. Adding SB203580, p38 MAPK inhibitor, significantly reversed the effects of OMD on the regulation of KF phenotype. The high expression of OMD may contribute to hyperproliferation of KFs, their migration, and excess ECM synthesis in KFs via regulation of the p38 MAPK signaling pathway.
Co‐infections mask pathogen‐specific associations with the gut microbiota in wild voles
Authors: Schmid Dominik W. , Risely Alice 
Published: April 2023

AbstractResearch Highlight: Brila, I., Lavirinienko, A., Tukalenko, E., Kallio, E. R., Mappes, T. & Watts, P. C. (2022). Idiosyncratic effects of coinfection on the association between systemic pathogens and the gut microbiota of a wild rodent, the bank vole (Myodes glareolus). Journal of Animal Ecology, https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365‐2656.13869. Interactions between pathogens and host‐associated microbial communities can influence host fitness, disease progression and pathogen emergence. The vast majority of studies characterize interactions between single pathogens and bacterial commensals, yet co‐infections with multiple pathogens are the norm in nature. In their paper on pathogen–microbiome interactions, Brila et al. (2022) examine how co‐infections with four systemic pathogens associate with the gut microbiota in wild bank voles. Building on a series of tests, the authors show that excluding co‐infection information from statistical models masks pathogen‐specific patterns and confounds interpretations. This paper advances on previous studies by generating surveillance data on a phylogenetically diverse suite of vole pathogens to address the question as to whether pathogens exhibit unique or universal associations with gut commensals. They report that even bacterial pathogens with similar transmission ecology have divergent associations with gut microbes, and highlight that a mechanistic understanding of host–pathogen interactions is necessary for decoding the diverse consequences for gut microbial communities.
Pregnancy Nutrition Core Outcome Set (PRENCOS): A core outcome set development study
Authors: Killeen Sarah Louise , Callaghan Shauna L. , O'Reilly Sharleen L. , McAuliffe Fionnuala M. 
Published: April 2023

AbstractObjectiveTo develop a core outcome set for pregnancy nutrition.DesignMixed‐methods core outcome set development study.SettingOnline.PopulationHealthcare professionals, researchers and women with experience of pregnancy.MethodsCandidate outcomes were identified from a systematic review of intervention and observational studies. One‐to‐one semi‐structured interviews with women with experience of pregnancy (n = 26) were transcribed and analysed using inductive thematic analysis. Outcomes were consolidated, organised into domains and categorised using the Core Outcome Measures in Effectiveness Trials taxonomy. A two‐round, modified Delphi survey (May–August 2021) was conducted. Participants voted on how critical each outcome was to include using a nine‐point Likert scale. All outcomes that did not reach consensus were discussed at a consensus meeting.Main outcome measuresCritical outcomes to include in the core outcome set.ResultsA total of 53 091 articles were identified. Outcomes were extracted from 427 articles. The qualitative data yielded 45 outcomes. An additional 24 outcomes came from the literature. In round one, 82 participants ranked 30 outcomes. One new outcome was included in round two, during which participants (n = 60) voted 12/31 outcomes as critical to include. The remaining 20 outcomes were discussed at the consensus meeting and two outcomes were included. Maternal outcomes included: pregnancy complications; delivery complications; maternal wellbeing; gestational weight change; maternal vitamin and mineral status; mental health; diet quality; nutritional intakes; need for treatments, interventions, medications and supplements; pregnancy loss or perinatal death; birth defects or congenital anomalies; neonatal complications; and newborn anthropometry and body composition.ConclusionsThe use of the Pregnancy Nutrition Core Outcome Set (PRENCOS) will ensure researchers measure what matters most from the perspective of key stakeholders.
Three‐year comparable clinical outcome for Trans‐Atlantic Inter‐Society Consensus (TASC) D femoropopliteal occlusion: Endovascular vs bypass surgery
Authors: Pang Skyi Yin‐Chun , Chow Rosanna Yin‐Ting , Chan Tiffany Ho‐Yi , Tse Ronald On‐Ho , Cheng Stephen Wing‐Keung 
Published: April 2023

AbstractAimTo evaluate the difference between endovascular surgery and bypass/hybrid approach in treating Trans‐Atlantic Inter‐Society Consensus (TASC) D femoropopliteal occlusion.Patients and MethodsThis is a 10‐year retrospective cohort study including 75 patients with TASC D femoropopliteal occlusion with revascularisation from 2009 to 2018. Cases were retrieved from the Clinical Data Analysis and Reporting System. Demographics, lesions characteristics, operative findings and follow‐up data were reviewed.ResultsA total of 65% of patients had endovascular intervention, 23% open bypass and 12% hybrid operation. The endovascular group had fewer critical limb ischaemia (endovascular 43%, bypass 94%, hybrid 100%; P < .001), and shorter length of lesion (endovascular 26.4 cm vs bypass/hybrid 31.0 cm; P = .004). The technical success rate of the endovascular group was 87.8%. Different endovascular treatment strategies were used. The 12‐month primary patency rate of the endovascular group was lower (endovascular 69.7% vs bypass 81.3% vs hybrid 75.0%; P = .67) but the secondary patency rate at 3 years after the operation was similar across all groups (endovascular 83.3% vs bypass 78.6% vs hybrid 87.5%; P = .86).ConclusionEndovascular treatment for long and complex femoropopliteal occlusion is technically feasible with a high success rate. Close surveillance with prompt reintervention may help achieve 3 years’ comparable patency of endovascular intervention to traditional surgical bypass. Individualised plan of revascularisation should be considered.
Streptomyces spp. as biocatalyst sources in pulp and paper and textile industries: Biodegradation, bioconversion and valorization of waste
Authors: Cuebas‐Irizarry Mara F. , Grunden Amy M. 
Published: April 2023

AbstractComplex polymers represent a challenge for remediating environmental pollution and an opportunity for microbial‐catalysed conversion to generate valorized chemicals. Members of the genus Streptomyces are of interest because of their potential use in biotechnological applications. Their versatility makes them excellent sources of biocatalysts for environmentally responsible bioconversion, as they have a broad substrate range and are active over a wide range of pH and temperature. Most Streptomyces studies have focused on the isolation of strains, recombinant work and enzyme characterization for evaluating their potential for biotechnological application. This review discusses reports of Streptomyces‐based technologies for use in the textile and pulp‐milling industry and describes the challenges and recent advances aimed at achieving better biodegradation methods featuring these microbial catalysts. The principal points to be discussed are (1) Streptomyces' enzymes for use in dye decolorization and lignocellulosic biodegradation, (2) biotechnological processes for textile and pulp and paper waste treatment and (3) challenges and advances for textile and pulp and paper effluent treatment.