bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mathematical modelling for compliance-assisted artificial muscle based ornithopter
Authors: S. Syam Narayanan , Pachamuthu Rajalakshmi , Biju Alex T. , Madupu Srilekha 
Published: May 2024

Purpose
This study aims to discuss the mathematical modelling of a compliance-assisted flapping mechanism and morphable structures for an UAV.

Design/methodology/approach
A compliance-assisted flapping wing was designed and modelled mathematically, and signals for the corresponding curves were calculated. The actual wing tip trace of a hummingbird was taken, and variables a, b, h and k were calculated from the image. This data was given to the mathematical model for plotting the graph, and the curve was compared with the input curve. The wing frame and mechanism for control surfaces using morphing is modelled along with single pivoted spine for centre of gravity augmentation and flight orientation control.

Findings
The model efficiently approximates the 2D path of the wing using line segments using the muscle and compliance mechanism.

Practical implications
Using a compliance-assisted flapping mechanism offers practical advantages. It allows us to synchronize the flapping frequency with the input signal frequency, ensuring efficient operation. Additionally, the authors can enhance the torque output by using multiple muscle strands, resulting in a substantial increase in the system’s torque-to-weight ratio. This approach proves to be more favourable when compared to conventional methods involving motors or servos, ultimately offering a more efficient and robust solution for practical application.

Social implications
This model focuses on creating a flexible and tunable mechanism that can at least trace four types of wing traces from the same design, for shifting from one mode of flight to another.

Originality/value
Conventional ornithopter flapping mechanisms are gear or servo driven and cannot trace a wing tip, but some can trace complicated curves, but only one at a time. This model can trace multiple curves using the same hardware, allowing the user to program the curve based on their needs or bird. The authors may vary the shape of the wing tip trace to switch between forward flight, hovering, backward flying, etc., which is not conceivable with any traditional flapping mechanism.
Banking sector and economic growth in the digital transformation era: insights from maximum likelihood and Bayesian structural equation modeling
Authors: Murrar Abdullah , Asfour Bara , Paz Veronica 
Published: May 2024

PurposeIn the digital era, the banking sector has transformed into a powerful intermediary, effectively connecting surplus and deficit units. This dynamic landscape empowers savers to secure their finances and generate returns, while simultaneously enabling businesses and individuals to access capital for investment and promoting economic growth. This study explores the relationships among banking development dimensions – represented by primary assets and liabilities, bank capital (core capital and required reserves) and economic growth as measured by components of gross domestic product (GDP).Design/methodology/approachThe study consolidated monthly balance sheets from digital banks over a 20-year period, resulting in an aggregate monthly balance sheet that reflects the financial position of all digital banks in the Palestinian economy. The research employs both maximum likelihood and Bayesian structural equation modeling to measure the causal pathways of the consolidated balance sheet with the individual components of GDP.FindingsThe results revealed that bank main assets (investments and loans) and liabilities (deposits) collectively explain for 97% of bank capital. Investments and loans demonstrate significant negative correlations with bank capital, while deposits exhibit a positive impact. This leads to a fundamental conclusion that a substantial proportion of retained earnings within the banking sector is reinvested, fueling expansion and growth. Additionally, the results showed a significant relationship between bank capital and various GDP components, including private consumption, gross investment and net exports (p = 0.000). However, while the relationship between bank capital and government spending was insignificant in the maximum likelihood estimation, Bayesian estimation revealed a slight yet positive impact of bank capital on government spending.Originality/valueThis research stands out due to its unique exploration of the intricate relationship between bank sector development dimensions, primary assets and liabilities and their impact on bank capital in the digital era. It offers fresh insights by dividing this connection into specific dimensions and constructs, utilizing a comprehensive two-decade dataset covering the digital banks records.
Challenges in construction material supply for post-disaster transport infrastructure recovery: a case study of the 2016 Kaikōura earthquake in New Zealand
Authors: Liu Kenan , Chang-Richards Alice , Costello Seosamh B. , L'Hermitte Cecile , Trent Nadia M. , Li Nan 
Published: May 2024

PurposeThis paper aims to investigate the challenges faced by the transport infrastructure sector in its civil construction material supply processes, following the 2016 Kaikoura earthquake in New Zealand.Design/methodology/approachA case study approach was adopted, which included on-site observations, semi-structured interviews and literature-based desktop reviews.FindingsThe research findings show that there were supply problems for aggregates, concrete, stormwater pipes and some specialised products for the repair and rebuild of transport facilities. Those supply problems were largely caused by (1) difficulty in predicting material requirements, (2) constrained supply capability, (3) inadequate local freight capacity, (4) legal, cultural and/or environmental considerations on resource exploitation and utilisation, (5) impacts of COVID-19 and (6) ineffective communication and coordination.Research limitations/implicationsFor future research, it is recommended that a comparative analysis of multiple disaster cases be undertaken to further explore the generalisability of the research findings.Originality/valueThe research findings will inform the development of post-earthquake recovery policies and material supply chain operation strategies, in order to expedite the recovery of transport networks if a future earthquake strikes.
The role of value co-creation on retailer loyalty and omni-channel shopping frequency
Authors: Kesenduran Nur , Yumurtacı Hüseyinoğlu Işık Özge , Erboz Gizem 
Published: May 2024

PurposeDrawing upon the social network theory (SNT), the aim of this study is to examine the impact of value co-creation (VCC) on retailer loyalty (RL) and omni-channel shopping frequency (OCF) from the consumer perspective.Design/methodology/approachGrounded on SNT, the research focuses on VCC in omni-channel retailing. A paper-based questionnaire was used to examine the role of VCC on OCF and RL, and hypotheses were tested using structural equation modeling (SEM).FindingsThe findings supported the impact of VCC on RL, and in turn, the impact of RL on OCF. However, the results of the analysis reveal that RL has no mediator role between VCC and OCF.Practical implicationsThe study shows the increasing role of VCC on RL, and the important role of RL on OCF. The findings reveal that RL has a significant role for VCC and OCF separately but does not have a mediator role between VCC and OCF. Moreover, the study extends the knowledge on VCC in omni-channel retailing.Originality/valueThe new research model, which was hypothesized from SNT, was validated. In the omni-channel retailing context, the study revealed the consumer perspective on VCC, and also the linkages between VCC, RL and OCF.
Is cryptocurrency a new digital gold? Evidence from the macroeconomic shocks in selected emerging economies
Authors: Majumder Sayantan Bandhu 
Published: May 2024

PurposeThe purpose of the study is to analyze the hedging abilities of the cryptocurrencies vis-à-vis gold against macroeconomic shocks in four emerging economies, India, China, Brazil and Russia.Design/methodology/approachUsing the monthly data from January 2013 to April 2023, the paper analyses the response of Cryptocurrencies vis-à-vis gold prices to three different macroeconomic shocks, namely, the economic policy uncertainty shock, the financial uncertainty shock and the inflation shock, within a VAR framework with the help of the Generalized Impulse Response Function.FindingsBoth gold and cryptocurrencies have limited hedging abilities against macroeconomic shocks across countries. In India, bitcoin has become the new digital gold, while in China, it is not bitcoin but rather gold that retains its hedging abilities. Neither bitcoin nor gold, Binance Coin or Cardano, are found to be the new digital gold in Brazil and Russia.Originality/valueThe paper compares the top nine cryptocurrencies with the traditional asset gold in terms of their hedging potential against macroeconomic shocks in emerging countries.
Investors’ demand in Initial Public Offering (IPO): Shariah compliance, corporate governance and macroeconomic factors
Authors: Al Masud Abdullah , Uluyol Burhan 
Published: May 2024

Purpose
Initial Public Offering (IPO) is a major milestone for a company. It allows a private company to issue shares to a much broader group of investors and become public. But conclusive evidence of the driving forces behind investors’ demand is yet to be identified. Therefore, the major purpose of this study is to assess the level of investors’ demand in IPO and how investors’ demand in IPOs is affected.

Design/methodology/approach
The study will employ 80 IPO companies of a Muslim-majority country, Bangladesh, starting from 2013 to 2021 with application of linear and quantile regressions. Apart from that, t-test will be used to compare means of groups of Shariah-compliant and non-Shariah-compliant firms and IPOs under fixed-price and book-building mechanism.

Findings
Oversubscription is higher for IPOs issued through fixed-price method compared to book-building method, but no significant difference is found in oversubscription for Shariah firms compared to non-Shariah firms based on t-tests. The authors found IPO size, firm size, IPO risk, proportion of shares offered to public, and bank interest rate to have significant impact on the IPO demand. Some models found non-Shariah compliance status of IPO companies to be a significant factor for the investors to demand IPO. Quantile regression results found board independence to have a positive association with larger, less-subscribed firms and board size to have a negative relation with IPO demand, for smaller firms with high demand.

Research limitations/implications
Future studies may apply the findings to other settings, especially into the reasons behind preference for non-Shariah-compliant firms and higher demand for IPOs during higher interest rate. Equity issuing firms and issue managers can benefit from this study by wisely deciding on the proportion of shares for public, issue size and board of director composition. Shariah considerations cannot be ignored given that more information on Shariah compliance is disseminated among investors despite current non-preference for Shariah-compliant IPOs. On the other hand, institutional investors and general investors should consider firm-specific, governance and macroeconomic factors in IPO investment. Likewise, regulators would do well to bring in quality IPOs with characteristics mentioned in this study for ensuring stability of the market.

Originality/value
The main contribution of the study is identifying determinants of IPO demand: faith, governance, macro issues – understanding whether one or many of the above factors drive investor demand in IPOs of a Muslim-majority country will be the main contribution.
How supervisor perceived overqualification influences exploitative leadership: the mediating role of job anxiety and the moderating role of psychological entitlement
Authors: Guo Linyi , Du Jing , Zhang Juncheng 
Published: May 2024

PurposeDrawing on appraisal theory of emotion, this study aims to establish and test a moderated mediation model underlying the process of exploitative leadership by investigating the mediating role of job anxiety and the moderating role of psychological entitlement.Design/methodology/approachWe collected two-wave questionnaire data from 355 supervisors with matched responses from 1,065 subordinates in Hubei province of China. Hierarchical multiple regression and PROCESS macro were applied to test our hypotheses.FindingsThe results indicated that supervisor perceived overqualification prompted supervisor job anxiety, which then led to raised exploitative leadership. Additionally, we found that supervisor psychological entitlement intensified the direct effect of supervisor perceived overqualification on supervisor job anxiety as well as the indirect effect of supervisor perceived overqualification on exploitative leadership through supervisor job anxiety.Originality/valueAlthough researchers have documented a growing number of consequences of exploitative leadership, less focus has been placed on its antecedents. The study extends our understanding of why, how and when supervisors engage in exploitative behaviors.
Remote yet connected: two focus areas for elevating organisational belonging in virtual teams
Authors: Turnbull Helen 
Published: May 2024

Purpose
This viewpoint paper aims to provide recommendations in two key leadership areas to improve belonging and connectedness in remote teams.

Design/methodology/approach
This paper synthesises recent academic and contextual literature regarding virtual teams, organisational belonging and generations coupled with the authors’ practical experience as a leader within a multi-national organisation.

Findings
Two focus areas related to leaders as critical actors in organisations and the improvement of leaders’ social skills to drive improved socialisation, connection and belonging in the workplace.

Originality/value
In the changing working landscape of continued remote working, wider workforce demographics and declining organisational engagement this paper contributes to literature by presenting two key areas coupled with practical recommendations for HR professionals, leaders, and organisations to focus on to improve belonging.
Berry anthocyanins prevent α‐dicarbonyls and advanced glycation end product formation in phosphate‐buffered saline‐based model systems, cookie and ground pork
Authors: Hsiao Yu‐Wen , Hsia Shih‐Min , Pan Min‐Hsiung , Ho Chi‐Tang , Hung Wei‐Lun 
Published: May 2024

Abstractα‐Dicarbonyls and advanced glycation end products (AGEs) are the heat‐induced potential toxicants commonly found in thermally processed foods due to the Maillard reaction. Research has shown that both α‐dicarbonyls and AGEs can cause oxidative stress and inflammation and have a positive link with several chronic diseases, such as diabetes. This study found that commonly consumed berry fruits exhibited excellent methylglyoxal (MGO)‐trapping and antiglycative activities, positively associated with their total phenolic and flavonoid contents. Blackcurrant exhibited the strongest MGO‐trapping and antiglycative activities among the tested berry fruits. In addition, we demonstrated that fortification with blackcurrant significantly reduced α‐dicarbonyls and AGEs formation in the chocolate cookies and marinated ground pork. Delphinidin and cyanidin glycosides were identified as the primary bioactive compounds of blackcurrant that trapped MGO to form the corresponding mono‐ and di‐MGO adducts. This study suggested that blackcurrant anthocyanins might serve as a novel additive to reduce the consumption of dietary reactive carbonyl species and AGEs from both animal‐ and plant‐derived processed foods.Practical ApplicationThe levels of α‐dicarbonyls and advanced glycation end products in ground pork and cookies were significantly reduced when fortified with blackcurrant. The blackcurrant anthocyanins might be a novel agent inhibiting α‐dicarbonyls and dietary advanced glycation end products formation in thermally processed foods.
Glucagon‐like‐peptide‐1 receptor agonists versus dipeptidyl peptidase‐4 inhibitors and cardiovascular outcomes in diabetes in relation to achieved glycemic control. A Danish nationwide study
Authors: Zareini Bochra , Sørensen Katrine Kold , Pedersen‐Bjergaard Ulrik , Loldrup Fosbøl Emil , Køber Lars , Torp‐Pedersen Christian 
Published: May 2024

AbstractAimTo compare the cardiovascular preventive effect associated with glucagon‐like‐peptide‐1 receptor agonists (GLP‐1 RA) versus dipeptidyl peptidase‐4 inhibitors (DPP‐4i) according to the achieved target level of glycated hemoglobin (HbA1c).MethodsWe used retrospective Danish registries to include type 2 diabetes patients already in metformin treatment initiating GLP‐1 RA or DPP‐4i between 2007 and 2021. Patients were included 6 months after GLP‐1 RA or DPP‐4i initiation. The last available HbA1c measurement before inclusion was collected. The achieved HbA1c level was categorized according to a target level below or above 53 mmol/mol (7%). The primary outcome was a composite of nonfatal myocardial infarction, nonfatal stroke, and all‐cause death. We used a multivariable Cox proportional hazard model to estimate the effect of HbA1c levels on the outcome among GLP‐1 RA users compared to DPP‐4i users.ResultsThe study included 13 634 GLP‐1 RA users (median age 56.9, interquartile range [IQR]: 48.5–65.5; 53% males) and 39 839 DPP‐4i users (median age 63.4, IQR: 54.6–71.8; 61% males). The number of GLP‐1 RA and DPP‐4i users according to achieved HbA1c levels were as follows: HbA1c ≤ 53 mmol/mol (≤7.0%): 3026 (22%) versus 4824 (12%); HbA1c > 53 mmol/mol (>7.0%): 6577 (48%) versus 17 508 (44%); missing HbA1c: 4031 (30%) versus 17 507 (44%). During a median follow‐up of 5 years (IQR: 2.6–5.0), 954 GLP‐1 RA users experienced the primary outcome compared to 7093 DPP‐4i users. The 5‐year risk (95% confidence interval [CI]) of the outcome associated with GLP1‐RA versus DPP‐4i according to HbA1c categories was as follows: HbA1c ≤ 53 mmol/mol: 10.3% (8.2–12.3) versus 24.3% (22.7–25.8); HbA1c > 53 mmol/mol: 16.0% (14.3–17.6) versus 21.1% (20.3–21.9); missing HbA1c: 17.1% (15.7–18.5) versus 25.6% (24.9–26.3). The preventive effect associated with GLP‐1 RA versus DPP‐4i was significantly enhanced when achieving lower HbA1c levels: HbA1c ≤ 53 mmol/mol: 0.65 (0.52–0.80); HbA1c > 53 mmol/mol: 0.92 (0.83–1.03); missing HbA1c: 0.92 (0.84–1.02) (p value for interaction <.001).ConclusionGLP‐1 RA use was associated with a lower rate of major adverse cardiovascular outcomes. The association was stronger in patients achieving the target glycemic level and weaker in patients not achieving the target glycemic level, suggestive of an interaction between achieved HbA1c level and GLP‐1 RA.image
Renal effects and safety between Asian and non‐Asian chronic kidney disease and type 2 diabetes treated with nonsteroidal mineralocorticoid antagonists
Authors: Xu Xiaoming , Feng Jing , Cui Yuying , Li Pingjiang , Dong Jianjun , Liao Lin 
Published: May 2024

AbstractBackgroundAsians bear a heavier burden of chronic kidney disease (CKD), a common comorbidity of type 2 diabetes mellitus (T2DM), than non‐Asians. Nonsteroidal mineralocorticoid receptor antagonists (MRAs) have garnered attention for their potential advantages in renal outcomes. Nevertheless, the impact on diverse ethnic groups remains unknown.MethodsThe PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure (CNKI), Wanfang database, and clinical trial registries were searched through August 2023 with the following keywords: nonsteroidal MRAs (finerenone, apararenone, esaxerenone, AZD9977, KBP‐5074), CKD, T2DM, and randomized controlled trial (RCT). A random effects model was used to calculate overall effect sizes.ResultsSeven RCTs with 14 997 participants were enrolled. Nonsteroidal MRAs reduced urinary albumin to creatinine ratio (UACR) significantly more in Asians than non‐Asians: (weighted mean difference [WMD], −0.59, 95% CI, −0.73 to −0.45, p < .01) vs (WMD, −0.29, 95% CI, −0.32 to −0.27, p < .01), respectively. The average decline of estimated glomerular filtration rate (eGFR) was similar in Asians and non‐Asians (p > .05). Regarding systolic blood pressure (SBP), nonsteroidal MRAs had a better antihypertension performance in Asians (WMD, −5.12, 95% CI, −5.84 to −4.41, p < .01) compared to non‐Asians (WMD, −3.64, 95% CI, −4.38 to −2.89, p < .01). A higher incidence of hyperkalemia and eGFR decrease ≥30% was found in Asians than non‐Asians (p < .01).ConclusionsNonsteroidal MRAs exhibited significant renal benefits by decreasing UACR and lowering SBP in Asian than that of non‐Asian patients with CKD and T2DM, without increase of adverse events except hyperkalemia and eGFR decrease ≥30%.image
Performance of an ancillary test for cervical cancer that measures miRNAs and cytokines in serum and cervical mucus
Authors: Fujii Takuma , Nishio Eiji , Tsukamoto Tetsuya , Kukimoto Iwao , Iwata Aya 
Published: May 2024

AbstractCurrently, human papillomavirus tests and cytology are used to screen for cervical cancer. However, more accurate ancillary screening tests are needed. MicroRNAs (miRNAs) and cytokines are promising biomarkers that are aberrantly expressed in cervical cancer. Therefore, the potential of developing new screening markers based on the levels of miRNAs and cytokines in serum and local mucus samples from the same patients with cervical neoplasia was investigated. miRNA screening was performed by microarray and measurement using real‐time reverse‐transcriptase PCR. Cytokine were measured using multiplex bead assay, and changes in expressions were analyzed based on disease severity. As lesions progressed, miR‐20b‐5p, −155‐5p, −144‐3p, −451a, and −126‐3p expression levels were increased in mucus, and miR‐16‐5p, −223‐3p, and ‐451a expression levels were decreased in serum. Regarding cytokines, IL‐6, IL‐8, monocyte chemoattractant protein‐1, Eotaxin, interferon‐γ, and RANTES were increased, whereas granulocyte–colony‐stimulating factor (G‐CSF) was significantly decreased in mucus. miRNAs and cytokines in serum did not have high diagnostic accuracy. However, a combination of miR‐20b‐5p, ‐451a, ‐126‐3p, Eotaxin, as well as G‐CSF in mucus samples, had high diagnostic accuracy with an area under the receiver operating characteristic curve of 0.989 (0.979–0.999). Our results suggest that using mucus for this ancillary test is more beneficial than serum.