bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of an amine-aldehyde condensate modifier on the thermal and mechanical properties of fiber-reinforced epoxy composites
Authors: Jana Goutam Kumar , Bera Sumit , Maity Ribhu , Maity Tithi , Mahato Arjun , Roy Shibayan , Mohapatra Hemakesh , Samanta Bidhan Chandra 
Published: October 2023

Purpose
The manufacture of polymer composites with a lower environmental footprint requires incorporation of sustainably sourced components. In addition, the incorporation of novel components should not compromise the material properties. The purpose of this paper is to demonstrate the use of a synthetic amine functional toluidine acetaldehyde condensate (AFTAC) as a modifier for fiber-reinforced epoxy composites. One of the fiber components was sourced from agricultural byproducts, and glass fiber was used as the fiber component for comparison.

Design/methodology/approach
The AFTAC condensate was synthesized via an acid-catalyzed reaction between o-toluidine and acetaldehyde. To demonstrate its efficacy as a toughening agent for diglycidyl ether bisphenol A resin composites and for the comparison of reinforcing materials of interest, composites were fabricated using a natural fiber (mat stick) and a synthetic glass fiber as the reinforcing material. A matched metal die technique was used to fabricate the composites. Composites were prepared and their mechanical and thermal properties were evaluated.

Findings
The inclusion of AFTAC led to an improvement in the mechanical strengths of these composites without any significant deterioration of the thermal stability. It was also observed that the fracture strengths for mat stick fiber-reinforced composites were lower than that of glass fiber-reinforced composites.

Originality/value
To the best of the authors’ knowledge, the use of the AFTAC modifier as well as incorporation of mat stick fibers in epoxy composites has not been demonstrated previously.
Contributing factors to marketing educators’ teaching performance: insights from executive postgraduate programmes in Brazil
Authors: Borba Salvador Alexandre , Bassi-Suter Mariana , Forsdike Nicola 
Published: October 2023

Purpose
This study aims to understand how marketing faculty become reference-educators of business executives by exploring the factors that contribute to their teaching performance.

Design/methodology/approach
Exploratory qualitative research, using in-depth interviews in which the object of the study was the marketing educator, based on three Brazilian business schools.

Findings
The teaching performance depends on the teaching practice, which is influenced by technical knowledge, pedagogical factors and personal features. The development of a practitioner-educator is a complex process that arises from both formal and informal learning.

Research limitations/implications
Deepens the understanding of marketing educators’ individual factors, proposing a model to expand the knowledge of the factors shaping a reference-educator.

Practical implications
Raises awareness among managers of Higher Education institutions of the relevance of the development of its educators considering not only pedagogical skills but also marketing and social skills.

Social implications
Improvements in education generate a positive contribution to society. Better marketing educators may result in better professionals, which could, ultimately, generate more benefits both for corporations and for society.

Originality/value
Existing literature has neglected the understanding of how marketing educators’ individual factors may impact on good teaching to create a well-rounded practitioner-educator. This study seeks to address that gap by exploring how marketing faculty, especially practitioners of marketing, become reference-educators, that is, educators identified as exemplars of good practice by their students and peers.
Static load-carrying behavior and material properties of additively manufactured gears (PBF-LB/M, 16MnCr5)
Authors: Brummer Markus , Raddatz Karl Jakob , Schmitt Matthias Moritz , Schlick Georg , Tobie Thomas , Daub Rüdiger , Stahl Karsten 
Published: October 2023

Purpose
Numerous metals can be processed using the additive manufacturing process laser-based powder bed fusion of metals (PBF-LB/M, ISO/ASTM 52900). The main advantages of additive manufacturing technologies are the high degree of design freedom and the cost-effective implementation of lightweight structures. This could be profitable for gears with increased power density, combining reduced mass with considerable material strength. Current research on additively manufactured gears is focused on developing lightweight structures but is seldom accompanied by simulations and even less by mechanical testing. There has been very little research into the mechanical and material properties of additively manufactured gears. The purpose of this study is to investigate the behavior of lightweight structures in additively manufactured gears under static loads.

Design/methodology/approach
This research identifies the static load-carrying capacity of helical gears with different lightweight structures produced by PBF-LB/M with the case hardening steel 16MnCr5. A static gear loading test rig with a maximum torque at the pinion of T1 = 1200 Nm is used. Further focus is set on analyzing material properties such as the relative density, microstructure, hardness depth profile and chemical composition.

Findings
All additively manufactured gear variants show no failure or plastic deformation at the maximum test load. The shaft hub connection, the lightweight hub designs and the gearing itself are stable and intact regarding their form and function. The identified material characteristics are comparable to conventionally manufactured gears (wrought and machined), but also some particularities were observed.

Originality/value
This research demonstrates the mechanical strength of lightweight structures in gears. Future research needs to consider the dynamic load-carrying capacity of additively manufactured gears.
Library staff's understanding of attitudinal barriers experienced by individuals with disabilities in libraries
Authors: Ferrara Lisa 
Published: October 2023

PurposeThe purpose of this study was to investigate how library staff understand disability and attitudinal barriers and how they use their knowledge of attitudinal barriers when planning programs and services for individuals with disabilities.Design/methodology/approachThis study took a generic qualitative approach to examining how library staff understand disability and attitudinal barriers. Participants were recruited through emails to professional library associations throughout the United States of America. Emails directed participants to a screening questionnaire, and 15 respondents were selected to participate in semi-structured interviews.FindingsThe results of the study showed that participants were aware of attitudinal barriers, but attitudinal barriers were not often considered during the planning and implementation of library programs and services.Originality/valueThis study is one of a limited body of work examining library staff's understanding of attitudinal barriers to library services for individuals with disabilities.
An assessment of the impact of the PSPP on Spanish public bonds
Authors: Izquierdo-Cervera Enrique , Sogorb-Mira Francisco 
Published: October 2023

Purpose
The purpose of this study is to analyse the impact of the European Central Bank’s (ECB) Public Sector Purchase Programme (PSPP) on Spanish sovereign debt.

Design/methodology/approach
The authors assess the impact of the PSPP on Spanish Government bonds from two different transmission channels (the signalling and the portfolio substitution) with two effects for each of them (the announcement and the expectation effects for the former and the stock and the rebalancing effects for the latter). The empirical study has been undertaken with event study methodology, controlled by macroeconomic variables, panel data and cross-sectional regression analyses.

Findings
The results show that both the ECB’s purchases under the PSPP and the announcements reduced Spanish Government bond yields. Compared to previous literature the Spanish Government bond yields reductions are larger than those for other countries.

Research limitations/implications
The authors’ approach to the impact of investors’ expectations is interesting, although they cannot draw evidence on this issue due to the lack of data.

Practical implications
From an economic perspective, the ECB can change economic agents’ expectations without actually carrying out any programme, only by announcing such a programme.

Originality/value
This paper contributes to the literature examining the PSPP from different transmission channels in Spain, taking into account the announcements, the expectations, the purchases and the variation in debt holdings relating to the PSPP from the beginning of the programme until 2020. Due to the large degree of heterogeneity across euro area countries, the results in this paper should improve our understanding of the relative differences in the impact of the PSPP and, thus, be of interest to academics and policymakers.
“Tag a person who loves candy” – sociocultural approach to unhealthy food marketing to adolescents in social media
Authors: Sutinen Ulla-Maija , Luukkonen Roosa , Närvänen Elina 
Published: October 2023

Purpose
This study aims to examine adolescents’ social media environment connected to unhealthy food marketing. As social media have become a ubiquitous part of young people’s everyday lives, marketers have also shifted their focus to these channels. Literature on this phenomenon is still scarce and often takes a quite narrow view of the role of marketing in social media. Furthermore, the experiences of the adolescents are seldom considered.

Design/methodology/approach
Using a sociocultural approach and netnographic methodology, this study presents findings from a research project conducted in Finland. The data consist of both social media material and focus group interviews with adolescents.

Findings
The findings elaborate on unhealthy food marketing to adolescents in social media from two perspectives: sociocultural representations of unhealthy foods in social media marketing and social media influencers connecting with adolescents.

Originality/value
The study broadens and deepens the current understanding of unhealthy food marketing to adolescents taking place in social media. The study introduces a novel perspective to the topic by looking at it as a sociocultural phenomenon.
Development and validation of the simplified Chinese Author Recognition Test: Evidence from eye movements of Chinese adults in Mainland China
Authors: Su Yongqiang , Li Yixun , Li Hong 
Published: October 2023

BackgroundIt is well evident that individuals' levels of print exposure are significantly correlated with their reading ability across languages, and an author recognition test is commonly used to measure print exposure objectively. For the first time, the current work developed and validated a Simplified Chinese Author Recognition Test (SCART) and examined its role in explaining Chinese online reading.MethodsIn Study 1, we constructed the SCART for readers of simplified Chinese and validated the test using data collected from 203 young adults in Mainland China. Participants were measured on the SCART and three self‐report tasks about their reading experiences and habits. Study 2 recruited additional 68 young adults in Mainland and measured their print exposure (with the same tasks used in Study 1), reading‐related cognitive ability (working memory, rapid automatic naming, Chinese character reading, and vocabulary knowledge), and Chinese online reading via an eye‐tracking passage reading task.ResultsResults of Study 1 support the high reliability and validity of the SCART. Results of Study 2 indicate that SCART scores significantly predicted participants' online reading processing while controlling for subjective reading experiences and habits, and reading‐related cognitive abilities. Across two studies, we found converging evidence that the in‐depth recognition of the authors (i.e., participants have read the books written by these authors) appears to be a better indicator of print exposure than the superficial recognition of the author names.ConclusionsTaken together, this work filled in the gap in the literature by providing an evidence‐based, objective print exposure measure for simplified Chinese and contributes to a broader understanding of print exposure and online reading processing across different writing systems.
What's format got to do with it? A comparison of three syntactic comprehension measures
Authors: Nielsen Jessie Leigh , Christensen Rikke Vang , Poulsen Mads 
Published: October 2023

BackgroundStudies of syntactic comprehension and reading comprehension use a wide range of syntactic comprehension tests that vary considerably in format. The goal of this study was to examine to which extent different formats of syntactic comprehension tests measure the same construct.MethodsSixty‐nine Grade 4 students completed multiple tests of decoding, vocabulary, fluid‐reasoning skill, reading comprehension and three tests of syntactic comprehension: the TROG‐2, a sentence repetition test and a whodunnit test.ResultsThere was limited shared variance between the syntactic comprehension tests, indicating that they only partially tapped into the same construct. Furthermore, the TROG‐2 was more highly correlated with fluid‐reasoning skill than the other syntax tests. Finally, the TROG‐2 and the whodunnit test explained additional variance in reading comprehension after controls, while sentence repetition did not.ConclusionsThere are important differences between syntactic comprehension tests. This has consequences both for the interpretation of previous studies of syntactic comprehension and reading comprehension and for the design of future studies as the choice of syntactic comprehension measure may directly influence the results of the study.
Anterior quadratus lumborum catheters for elective cesarean section: A double‐blind, randomized, placebo‐controlled trial
Authors: Hansen Christian K. , Steingrimsdottir Gudny E. , Dam Mette , Nielsen Martin V. , Tanggaard Katrine , Poulsen Troels D. , Lebech Morten , Børglum Jens 
Published: October 2023

AbstractBackgroundOptimizing pain management following cesarean section is crucial for the well‐being of both mother and infant. Various types of quadratus lumborum blocks have exhibited reduced opioid consumption and pain scores after cesarean section. However, duration of block effect is relatively short. The aim of this study was to investigate the analgesic efficacy of the anterior quadratus lumborum catheters for cesarean section.MethodsAll 32 enrolled participants were allocated to postoperative bilateral ultrasound‐guided anterior quadratus lumborum catheter placement with injection of 60 mL ropivacaine 0.375% after cesarean section. Randomization at 2 h resulted in either 60 mL ropivacaine 0.2% or 60 mL isotonic saline injected through the catheters, with subsequent 22‐h infusion of either ropivacaine 0.2% or isotonic saline with an infusion rate of 4 mL h−1 per catheter. Participants in the active group received a total of 697 mg ropivacaine during the first 24 h. All participants received the standard postoperative multimodal pain regimen, and a final bilateral injection at 24‐h post‐catheter placement of 60 mL ropivacaine 0.375% in total.The primary outcome was time to first opioid administration. Secondary outcomes were pain scores, time to first ambulation, nausea and vomiting, accumulated opioid consumption, and catheter displacement rates.ResultsNo significant intergroup differences were observed following the randomized intervention. Median time to first opioid (IQR) was (active vs. placebo) 414 (283, 597) vs. 428 (245, 552) minutes, with a median difference (CI) of −14 (−184 to 262) min, p = .32.ConclusionBilateral anterior quadratus lumborum catheters with continuous infusion did not prolong time to first opioid after elective cesarean section.
A whole genome scan reveals distinct features of selection in Zhaotong cattle of Yunnan province
Authors: Lyu Yang , Guan Xiwen , Xu Xinglong , Wang Pengfei , Li Qiaoxian , Panigrahi Manjit , Zhang Jicai , Chen Ningbo , Huang Bizhi , Lei Chuzhao 
Published: October 2023

AbstractOver the years, indigenous cattle have not only played an essential role in securing primary food sources but have also been utilized for labor by humans, making them invaluable genetic resources. The Zhaotong cattle, a native Chinese breed from the Yunnan province, possess excellent meat quality and resistance to heat and humidity. Here we used whole genome sequencing data of 104 animals to delve into the population structure, genomic diversity and potential positive selection signals in Zhaotong cattle. The findings of this study demonstrate that the genetic composition of Zhaotong cattle was primarily derived from Chinese indicine cattle and East Asian cattle. The nucleotide diversity of Zhaotong cattle was only lower than that of Chinese indicine cattle, which was much higher than that of other taurine cattle. Genome‐wide selection scans detected a series of positive candidate regions containing multiple key genes related to bone development and metabolism (CA10, GABRG3, GLDN and NOTUM), meat quality traits (ALG8, LINGO2, MYO5B, PRKG1 and GABRB1), immune response (ADA2, BMF, LEF1 and PAK6) and heat resistance (EIF2AK4 and LEF1). In summary, this study supplies essential genetic insights into the genome diversity within Zhaotong cattle and provides a foundational framework for comprehending the genetic basis of indigenous cattle breeds.
Genotyping‐by‐sequencing reveals a high number and quality of single nucleotide polymorphisms in guinea pigs (Cavia porcellus) from the Peruvian Andes
Authors: Borja Lozano María Victoria , Vigil Santillán Bianca , More Montoya Manuel J. , Morón Barraza Jonathan A. , García‐Serquén Aura Liz , Gutiérrez Reynoso Gustavo , Yalta‐Macedo Claudia E. 
Published: October 2023

AbstractGuinea pigs are a major source of animal protein for Peruvian Andean families. Despite the economic and cultural relevance of guinea pigs, their genomic characterization has been scarcely addressed. Genotyping‐by‐sequencing (GBS) has emerged as an affordable alternative to genotyping of livestock and native animals. Here, we report the use of GBS for single nucleotide polymorphism (SNP) discovery of traditionally raised guinea pigs from six regions of the Peruvian Andes and one group of breeding animals. The paired‐end (2 × 150 bp) sequencing of 40 guinea pig DNA samples generated a mean of 6.4 million high‐quality sequencing reads per sample. We obtained an average sequencing depth of 10× with an 88.5% mapping rate to the Cavia porcellus reference genome. A total of 279 965 SNPs (102 SNPs/Mbp) were identified after variant calling and quality filtering. Based on this SNP set, we assessed the genetic diversity and distance within our selected guinea pig populations. An overall average minor allele frequency of 0.13, an observed heterozygosity of 0.31, an expected heterozygosity of 0.35, and an F‐value of 0.1 were obtained, while the SNP‐based neighbor‐joining tree suggests a closer genetic relationship between individuals from geographically close locations. We showed that GBS is a cost‐effective tool for SNP discovery and genetic characterization of Peruvian guinea pig populations. Therefore, it may be considered as a suitable and affordable tool for genomic characterization of poorly studied native animal species.
Social work practices in community governance: A systematic literature review
Authors: Wenmei Guo , Yahaya Mohd Haizzan , Ali Isahaque 
Published: October 2023

AbstractAs a significant social subject force, social work plays a unique role in the new pattern of community governance. Through continuous practice and exploration, it has accumulated particular practical experience and theoretical foundation with considerable application value, which provides good references and references for the study. This study is based on a review of published articles that reflect 10 years of research on social work participation in community governance. After an extensive literature review, a total of 24 peer‐reviewed articles were included. These were searched among papers published in different journals of Web of Science and Scopus databases on social work practices in community governance for the period of 2011–2021. A systematic review of literature studies allows the researcher to get a more comprehensive picture of the state of research in the field, especially the research results and findings that have been made. In the process, literature gaps, challenges, impediments, and possibilities for future research directions were examined. In this context, a framework and insight for future researchers on social work engagement in community governance regarding content areas, theoretical models, outcomes, methodologies, and evaluation tools are provided.
Early readmission of exclusively breastmilk‐fed infants born by means of normal birth or cesarean is multifactorial and associated with perinatal maternal mental health concerns
Authors: De Mare Kirsten Emma , Bourne Debra , Rischitelli Barbara , Fan Wei Qi 
Published: October 2023

AbstractBackgroundLate preterm and full‐term infants comprise the majority of births in our hospital which serves a multicultural lower socioeconomic community. Patients give birth vaginally (normal birth, NB) or by cesarean birth (CB), and the majority of neonates are exclusively breastmilk fed until discharge. In this study we examined what factors within these two birth modes and feeding regimes of exclusive breast milk were associated with early postnatal readmission. Ideally, findings will aid initiatives to decrease readmission rates.MethodsA retrospective cohort study was performed on maternal–infant pairs. All neonates from 2016 to 2018, exclusively breastmilk fed at discharge, born by NB (n = 4245) or CB (n = 1691), were grouped as non‐Readmitted (Reference) or Readmitted within 30 days of discharge. Readmission reason was determined, and potential associations were identified using univariate analysis and multivariable logistic regression.ResultsRates of readmission were similar for both NB and CB infants (6.8% vs. 7.3%). In order, NB concerns were jaundice, infection, and feeding—this was reversed for the CB Group. NB readmission bilirubin levels were higher (293 ± 75 vs. 236 ± 112, μmol/L, NB:CB, p < 0.001). Factors associated with readmission for both groups were similar to previously published studies. Edinburgh Postnatal Depression Score (EPDS) was higher for Readmitted infant mothers. Importantly, for non‐jaundice readmission EDPS categories indicated that both CB and NB mothers were more likely to have depression.ConclusionEarly readmission of exclusively breastmilk‐fed infants born by means of NB or CB is multifactorial. Early pregnancy mental health issues are associated with readmission, highlighting the potential effects of perinatal depression on neonatal health.