bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stagnation point flow of a second-grade hybrid nanofluid induced by a Riga plate
Authors: Khashi'ie Najiyah Safwa , Waini Iskandar , Zokri Syazwani Mohd , Kasim Abdul Rahman Mohd , Arifin Norihan Md , Pop Ioan 
Published: September 2021

Purpose
This paper aims to accentuate the behavior of second-grade hybrid Al2O3–Cu nanofluid flow and its thermal characteristics driven by a stretching/shrinking Riga plate.

Design/methodology/approach
The second-grade fluid is considered with the combination of Cu and Al2O3 nanoparticles. Three base fluids namely water, ethylene glycol (EG) and methanol with different Prandtl number are also examined. The formulation of the mathematical model of second-grade hybrid nanofluid complies with the boundary layer approximations. The complexity of the governing model is reduced into a simpler differential equations using the similarity transformation. The bvp4c solver is fully used to solve the reduced equations. The observation of multiple solutions is conducted for the assisting (stretching) and opposing (shrinking) cases.

Findings
The impact of suction parameter, second-grade parameter, electromagnetohydrodynamics (EMHD) parameter, velocity ratio parameter and the volumetric concentration of the alumina and copper nanoparticles are numerically analyzed on the velocity and temperature profiles, skin friction coefficient and local Nusselt number (thermal rate) of the second-grade Al2O3–Cu/water. The solution is unique when (static and stretching cases) while dual for a specific range of negative in the presence of suction effect. Based on the appearance of the first solution in all cases of, it is physically showed that the first solution is stable. Further examination reveals that the EMHD and suction parameters are the contributing factors for the thermal enhancement of this non-Newtonian working fluid. Meanwhile, the viscosity of the non-Newtonian fluid also plays a significant role in the fluid motion and heat transfer rate based on the finding that the EG base fluid produces the maximum heat transfer rate but the lowest critical value and skin friction coefficient.

Originality/value
The results are novel and contribute to the discovery of the hybrid nanoparticles’ performance in the non-Newtonian second-grade fluid. Besides, this study is beneficial to the researchers in this field and general audience from industries regarding the factors, which contributing to the thermal enhancement of the working fluid.
Enhancing the role of tourism governance to improve collaborative participation, responsiveness, representation and inclusion for sustainable community-based tourism: a case study
Authors: Dangi Tek B. , Petrick James F. 
Published: September 2021

Purpose
The purpose of this study is to explore under-addressed issues of collaborative participation, decision-making, representation and inclusion in tourism governance in the twin cities of Bryan-College Station in Texas, USA. The study demonstrated that improved tourism governance has the potential to address underrepresented issues and contribute to sustainable community-based tourism (SCBT) success.

Design/methodology/approach
Semi-structured, face-to-face interviews were conducted with 40 tourism business owners/managers, key persons in cultural/community organizations, tourism associations, government officials and backstage staff (mainly ethnic minorities) to explore key issues relating to governance, collaborative participation and responsiveness relating to tourism development.

Findings
It was found that a collaborative decision-making process existed with significant opportunities for listening to various stakeholders with the majority being happy with how the governing agencies responded to them. However, some expressed concerns regarding participation in decision-making processes, the inclusion of their voices and issues of low job representation. These suggest the need for enhancing collaborative participation, representation and decision-making. Guided by the theory and results of the study, recommendations for more collaborative, responsive and inclusive governance have been suggested.

Originality/value
As one of the few studies exploring the under-addressed issues in tourism governance in SCBT operations, the study is believed to hold significance from the perspectives of sustainable tourism development.
Dry wear behavior of A356-SiCp functionally graded composite in unidirectional and reciprocating contacts
Authors: John Premkumar , Vamadevan Rajam Rajeev , Mattacaud Ramachandralal Rajkumar , Komalangan Krishnakumar 
Published: September 2021

Purpose
The purpose of this study is to distinguish the difference in tribological behavior of functionally graded composites in two sliding modes, namely, unidirectional and reciprocating.

Design/methodology/approach
A356-(10 Wt.%)SiCp functionally graded composite material (FGM) was prepared by vertical centrifugal casting and then a comparison was made between the tribological characteristics using pin-on-disk and pin-on-reciprocating plate configurations under identical operating conditions (sliding distance (s): 350 m; load (W): 30 = W = 120 N, in steps of 30 N; and velocity (v): 0.2 = v = 1.2 m/s, in steps of 0.2 m/s). Two types of test pins were considered, namely, a test pin taken from the outer zone of the FGM with maximum particle concentration and a test pin taken from the inner zone of the FGM in a matrix-rich region.

Findings
The study revealed that, for the test pin taken from the outer zone of the FGM in the low-velocity range (0.2–0.4 m/s), the reciprocating wear of the friction pair was dominant, while unidirectional wear was dominant in the velocity range of 0.6–0.8 m/s for the entire load range investigated. However, when the velocity was increased from 1.0 to 1.2 m/s, conflicting nature of dominancy in the wear characteristics of the friction pair was observed, depending on the loading condition. In addition, the inner zone FGM pin underwent seizure in the reciprocating mode, whereas this phenomenon was not seen in the unidirectional mode.

Originality/value
Differences in wear and friction characteristics of FGM friction pairs in two different sliding modes were investigated over a wide range of operating parameters.
Leakage-free optimization of micro herringbone grooved journal bearings with a virtual node method
Authors: Yin Lei , Zheng Xiaolin , Tang Dongxing , Han Yanfeng , Zhao Rui , Chen Yi 
Published: September 2021

Purpose
This study aims to develop a new method to treat the numerical singularity at the critical nodes of two skew coordinates, and optimize the leakage of micro herringbone grooved journal bearings (MHGJBs) with this method.

Design/methodology/approach
A side leakage numerical algorithm is proposed by using the skew meshes with a virtual node (SMVN) method to evaluate the effects of groove angle, bank/groove ratio, groove depth and groove number on load capacity, friction and side leakage of MHGJB.

Findings
The SMVN method is effective in treating the numerical singularity at the critical nodes of two skew coordinates. Besides, a group of optimized parameters of micro herringbone groove is obtained which can not only minimize the side leakage but also improve the load capacity and friction force.

Originality/value
A virtual node method was proposed, which can significantly improve the calculation accuracy in the side leakage model.
Testing cointegration between workers' remittances and human capital formation in Sri Lanka
Authors: Mohamed Aslam Ahamed Lebbe , Sivarajasingham Selliah 
Published: September 2021

PurposeThis study investigates the long-run relationship between workers' remittances and human capital formation in Sri Lanka by using the macro-level time series data during the period of 1975–2020.Design/methodology/approachIn this study, the augmented Dickey–Fuller (ADF) and Philips–Perron (PP) unit root tests, the autoregressive distributed lag (ARDL) bounds cointegration technique, the Granger causality test, the forecast error variance decomposition technique and impulse response function analysis were employed as the analytical techniques.FindingsIn accordance with the results of unit root tests, the variables used in this study are mixed order. Results of cointegration confirm that workers' remittances in Sri Lanka have both long-run and short-run beneficial relationship with human capital formation. The Granger causality test results indicate that there is a two-way causal relationship between workers' remittances and human capital formation. The results of forecast error variance decomposition expose that innovation of workers' remittances contributes to the forecast error variance in human capital in bell shape. Further, the empirical evidence of impulse response function analysis reveals that a positive standard deviation shock to workers' remittances has an immediate significant positive impact on human capital formation in Sri Lanka for a period of up to ten years.Practical implicationsThis research provides insights into the workers' remittances in human capital formation in Sri Lanka. The findings of this study provides evidence that workers' remittances help to produce human capital formation.Originality/valueBy using the ARDL Bounds cointegration and other techniques in Sri Lanka, this study fills an important gap in academic literature.
Review of employment and disability: bibliographic analysis
Authors: Marín-Palacios Cristina , Carrero Márquez Oliver , Lohan Rhona Patricia 
Published: September 2021

PurposeThe social and work inclusion of people with disabilities is an important area of public action and research today. Future trends in the economy and lifestyle represent new challenges for the inclusion of disabled people. This paper aims to provide a bibliometric analysis of the growing amount of research publications currently dealing with problems associated with people with disabilities in employment. The papers are analysed to gain a perspective on any changes in the field.Design/methodology/approachIn this study, the analysis is conducted using a literature review and bibliometric analysis techniques in particular. The bibliographic source supporting this analysis resulted from a search of Scopus using Disability, Employment and Work as search terms, which yielded 750 publications spanning the previous nine years. VOSviewer was applied to facilitate the analysis.FindingsThe findings indicate that up until 2016, the conversation revolved around health and employment, and from 2017 onwards the research has become more focused on the employment of people with disabilities. Socioeconomic factors affecting people with disabilities appear as one of the causes impairing their inclusion, such as the different intellectual disabilities curtailing their employment and education for work.Research limitations/implicationsThis analysis limited itself to only one database and open access articles. Therefore, further research is needed with a larger bibliographic base covering other aspects related to the future of disability employment.Practical implicationsThis review may serve as a valuable source of information for researchers for further investigations in this area. And to aid in the development of effective policies to address existing social stereotypes.Originality/valueThis research illustrates, through the use of VOSviewer, the present studies in the area of disability and employment and sets the foundations for further research.
A machine learning approach-based power theft detection using GRF optimization
Authors: Prakash A. , Shyam Joseph A. , Shanmugasundaram R. , Ravichandran C.S. 
Published: September 2021

Purpose
This paper aims to propose a machine learning approach-based power theft detection using Garra Rufa Fish (GRF) optimization. Here, the analyzing of power theft is an important part to reduce the financial loss and protect the electricity from fraudulent users.

Design/methodology/approach
In this section, a new method is implemented to reduce the power theft in transmission lines and utility grids. The detection of power theft using smart meter with reliable manner can be achieved by the help of GRF algorithm.

Findings
The loss of power due to non-technical loss is small by using this proposed algorithm. It provides some benefits like increased predicting capacity, less complexity, high speed and high reliable output. The result is analyzed using MATLAB/Simulink platform. The result is compared with an existing method. According to the comparison result, the proposed method provides the good performance than existing method.

Originality/value
The proposed method gives good results of comparison than those of the other techniques and has an ability to overcome the associated problems.
Plexiglass: how power, policy and politics create a mirage of equitable family engagement
Authors: Porter Lisa , Barko-Alva Katherine , Herrera Socorro Guadalupe 
Published: September 2021

PurposePower, policy and politics set the landscape for technocratic approaches in the educational system. Efficiency and money-saving initiatives that adhere to a one-size-fits-all approach drive the response to complex and multifaceted challenges within education. This has been made apparent through the COVID-19 pandemic and its aftermath. This paper aims to explore one of the most pronounced and gaping realities that became evident during this crisis in how the system dehumanizes those in the margins. By not centralizing the biographies of families served in the schools, particularly culturally and linguistically diverse families, the system has failed to capitalize on the assets and affirm their wisdom.Design/methodology/approachThis conceptual paper juxtaposes the technocratic and humanistic approaches of family engagement and provides alternative narratives rooted in authentic cariño (Bartolomé, 2008; Herreraet al., 2020; Valenzuela, 1999) and radical kinship (Boyle, 2017).FindingsCurrently, the educational system has sought to address complex issues by attending to the structures (i.e. plexiglass) and instructions (i.e. technology) as a way of responding to life-altering events that are in need of humanistic approaches.Originality/valueThe authors ask educators to reflect on the ways that power, policy and politics often stifle opportunities to move outside what is known to transform educational contexts. The authors conclude with critical questions to create new pathways guided by empathy and hope.
Intention to use analytical artificial intelligence (AI) in services – the effect of technology readiness and awareness
Authors: Flavián Carlos , Pérez-Rueda Alfredo , Belanche Daniel , Casaló Luis V. 
Published: September 2021

PurposeThe automation of services is rapidly growing, led by sectors such as banking and financial investment. The growing number of investments managed by artificial intelligence (AI) suggests that this technology-based service will become increasingly popular. This study examines how customers' technology readiness and service awareness affect their intention to use analytical AI investment services.Design/methodology/approachHypotheses were tested with a data set of 404 North American-based potential customers of robo-advisors. In addition to technology readiness dimensions, the potential customers' characteristics were included in the framework as moderating factors (age, gender and previous experience with financial investment services). A post-hoc analysis examined the roles of service awareness and the financial advisor's name (i.e., robo-advisor vs. AI-advisor).FindingsThe results indicated that customers' technological optimism increases, and insecurity decreases, their intention to use robo-advisors. Surprisingly, feelings of technological discomfort positively influenced robo-advisor adoption. This interesting finding challenges previous insights into technology adoption and value co-creation as analytical AI puts customers into a very passive role and reduces barriers to technology adoption. The research also analyzes how consumers become aware of robo-advisors, and how this influences their acceptance.Originality/valueThis is the first study to analyze the role of customers' technology readiness in the adoption of analytical AI. The authors link the findings to previous technology adoption and automated services' literature and provide specific managerial implications and avenues for further research.
Effects of doping trace Ni element on interfacial behavior of Sn/Ni (polycrystal/single-crystal) joints
Authors: Wang Jianing , Chen Jieshi , Zhang Zhiyuan , Zhang Peilei , Yu Zhishui , Zhang Shuye 
Published: September 2021

Purpose
The purpose of this article is the effect of doping minor Ni on the microstructure evolution of a Sn-xNi (x = 0, 0.05 and 0.1 wt.%)/Ni (Poly-crystal/Single-crystal abbreviated as PC Ni/SC Ni) solder joint during reflow and aging treatment. Results showed that the intermetallic compounds (IMCs) of the interfacial layer of Sn-xNi/PC Ni joints were Ni3Sn4 phase, while the IMCs of Sn-xNi/SC Ni joints were NiSn4 phase. After the reflow process and thermal aging of different joints, the growth behavior of interfacial layer was different due to the different mechanism of element diffusion of the two substrates. The PC Ni substrate mainly provided Ni atoms through grain boundary diffusion. The Ni3Sn4 phase of the Sn0.05Ni/PC Ni joint was finer, and the diffusion flux of Sn and Ni elements increased, so the Ni3Sn4 layer of this joint was the thickest. The SC Ni substrate mainly provided Ni atoms through the lattice diffusion. The Sn0.1Ni/SC Ni joint increases the number of Ni atoms at the interface due to the doping of 0.1Ni (wt.%) elements, so the joint had the thickest NiSn4 layer.

Design/methodology/approach
The effects of doping minor Ni on the microstructure evolution of an Sn-xNi (x = 0, 0.05 and 0.1 Wt.%)/Ni (Poly-crystal/Single-crystal abbreviated as PC Ni/SC Ni) solder joint during reflow and aging treatment was investigated in this study.

Findings
Results showed that the intermetallic compounds (IMCs) of the interfacial layer of Sn-xNi/PC Ni joints were Ni3Sn4 phase, while the IMCs of Sn-xNi/SC Ni joints were NiSn4 phase. After the reflow process and thermal aging of different joints, the growth behavior of the interfacial layer was different due to the different mechanisms of element diffusion of the two substrates.

Originality/value
In this study, the effect of doping Ni on the growth and formation mechanism of IMCs of the Sn-xNi/Ni (single-crystal) solder joints (x = 0, 0.05 and 0.1 Wt.%) was investigated.
Single‐center survey of biologic use for inflammatory skin diseases during the coronavirus disease 2019 pandemic
Authors: Kado Soichiro , Kamiya Koji , Kishimoto Megumi , Maekawa Takeo , Kuwahara Aya , Sugai Junichi , Komine Mayumi , Ohtsuki Mamitaro 
Published: September 2021

AbstractCoronavirus disease 2019 (COVID‐19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2). The ongoing COVID‐19 pandemic has affected both daily life and medical care; therefore, the aim of this study was to analyze the use of biologics for inflammatory skin diseases during the COVID‐19 pandemic in our hospital. The observation period was between 1 January 2020 and 23 February 2021. In this study, we enrolled 227 patients with psoriasis, six patients with palmoplantar pustulosis (PPP), 69 patients with atopic dermatitis (AD), and five patients with hidradenitis suppurativa (HS). Bioswitch was performed in 25 patients with psoriasis (11.0%). Biologics were discontinued in 14 patients with psoriasis (6.2%), 10 patients with AD (14.5%), and four patients with HS (80.0%); they were not discontinued in patients with PPP. The introduction of biologics was observed in 27 patients with psoriasis (11.9%), four patients with PPP (66.7%), 33 patients with AD (47.8%), and two patients with HS (40.0%). The use of telephone consultations was observed in four patients with psoriasis and two patients with AD. One patient, who received adalimumab for the treatment of psoriatic arthritis, suffered from COVID‐19 and recovered after a mild course. In conclusion, we report our experience regarding the use of biologic drugs for inflammatory skin diseases. The use of biologics seemed safe for use amidst COVID‐19 infection during the observation period; however, further observation on a larger number of patients is required to confirm the risks and benefits of biologic use in the COVID‐19 era.
Only plantar lesion of punctate palmoplantar keratoderma with a novel missense mutation in the AAGAB gene: Two Japanese familial case reports and review of reported mutations
Authors: Hasegawa Akito , Hayashi Ryota , Shimomura Yutaka , Hirashima Masanori , Abe Riichiro 
Published: September 2021

AbstractPunctate palmoplantar keratoderma type 1 (PPPK1) is a rare autosomal dominant disorder characterized by hyperkeratotic papules on the palms and soles. In 2012, heterozygous loss‐of‐function mutations in the AAGAB gene were identified as the cause of this disorder. To date, 51 AAGAB mutations have been reported in families with PPPK1, but clear genotype–phenotype correlations have not been established yet. In this report, we identified four Japanese patients with PPPK1 from two families with an identical novel heterozygous AAGAB mutation. All patients showed hyperkeratotic papules only on the soles. Direct sequencing analysis of the AAGAB gene using peripheral blood‐derived genomic DNA samples revealed that all of the patients carried a heterozygous 1‐bp substitution (c.844G>A, p.Glu282Lys) in exon 9, leading to a missense change. Since all patients with the same missense mutation showed a mild phenotype limited to the soles, there is thought to be a genotype–phenotype correlation regarding this mutation. The c.844G>A mutation is a known single‐nucleotide polymorphism with a minor allele frequency of 0.000012. Because of its mild symptoms, individuals with this mutation can be misdiagnosed with clavus or verruca vulgaris; this suggests that there may be a high incidence of mild symptoms of skin lesions found only on the soles in patients with PPPK1. Therefore, it is necessary to consider this disease when keratotic papules are found on the soles.
Actinomyces capricornis sp. nov., isolated from the oral cavity of a Japanese serow
Authors: Saito Masanori , Shinozaki‐Kuwahara Noriko , Hashizume‐Takizawa Tomomi , Gotouda Hiroya , Senpuku Hidenobu , Kurita‐Ochiai Tomoko 
Published: September 2021

AbstractA novel Gram‐positive, facultatively anaerobic, rod‐shaped, nonspore forming, nonmotile organism was isolated from a Japanese serow oral cavity. Designated strain MAS‐1T, it is most closely related to Actinomyces bowdenii DSM 15435T, with which it shares 98.07% sequence homology in the 16S ribosomal RNA gene. The primarily detected cellular fatty acids in strain MAS‐1T were C16:0 and C18:1w9c. The predominant respiratory quinone was MK‐9 (H4). The major polar lipids were phosphatidylcholines, phosphatidylinositols, and glycophospholipids. The genomic DNA GC content of the isolate was 71.3 mol%. The digital DNA–DNA hybridization and average nucleotide identity values between MAS‐1T and its related species were 23.5%–39.5% and 82.11%–91.01%, respectively, which were below the threshold (70% and 95%, respectively) for species delineation, indicating that strain MAS‐1T represents a novel species. Strain MAS‐1T can be differentiated from A. bowdenii by their reactions to naphthol‐AS‐BI‐phosphohydrolase, α‐galactosidase, β‐galactosidase, and N‐acetyl‐β‐glucosaminidase, as well as differing acid production from glycogen. Based on the results of genotypic, phenotypic, and biochemical analyses, herein it is proposed that the identified bacteria can be classified as a novel species, Actinomyces capricornis sp. nov., strain MAS‐1T (=JCM 34236T = DSM 111732T).