bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mechanical properties, permeability and microstructure of concrete using construction and industrial waste
Authors: Sharma Rachit 
Published: October 2022

PurposeThe purpose of this research is to evaluate construction and industrial waste materials in concrete using different additives.Design/methodology/approachThe experimental study investigated the effect of waste foundry sand (WFS), waste glass (GW) as partial substituent to natural sand and addition of waste glass fibers (GFs) and silica fume (SF) in natural/construction waste aggregate concrete on mechanical properties, durability and microstructure using.FindingsThe results reveal significant strength enhancement on using two admixtures, the maximum increase in compressive strength was obtained on using 20% WFS and 0.75% GF for both natural (75% increment) and construction waste (72% increment) coarse aggregates. Using three admixtures simultaneously, the maximum enhancement in compressive strength was found for (WFS(20%) + GW(10%) + GF(0.75%)) for both natural aggregates (122% increment) and construction waste (114% increment) coarse aggregates as compared to control mix. The 28 days split tensile and flexural strength of natural/construction waste aggregate concrete improve with age appreciably for optimal contents of single, two or three admixtures and the maximum tensile and flexural strength increment was 135 and 97% for mix (WFS(20%) + GW(10%) + GF(0.75%)) with natural aggregates as compared to control mix. The microstructural analysis results indicate improved microstructure upon partial substitution of sand with WFS, GW and SF along with addition of waste GFs.Originality/valueThe use of construction and industrial waste as a substituent to natural aggregate/sand will provide far reaching benefits for the green construction and the environment at large.
Digitalization of manufacturing for implanting value, configuring circularity and achieving sustainability
Authors: Prakash Gyan , Ambedkar Kumar 
Published: October 2022

PurposeThis paper explores the relationships between Industry 4.0-driven technologies and the circular economy-driven business model (CEDBM) components of value creation, delivery and capture along manufacturing processes.Design/methodology/approachBased on the literature, a research model is developed in which the three CEBDM components are represented by five components: product service system (PSS), product design, industrial symbiosis (IS), consumer interaction and pay-per-use/rental. For each of these five components, enabling Industry 4.0 technologies are identified and vague interdependence relationships were assessed using a fuzzy decision-making trial and evaluation laboratory (DEMATEL) method.FindingsThis paper contributes to the literature by exploring the relationships of the CEDBM components of value creation, value delivery and value capture with Industry 4.0-driven technological enablers. In addition, causal relationships between Industry 4.0 technologies and their relevance for facilitating CE-enabled manufacturing processes are identified, and finally, Industry 4.0-driven technological enablers of CE are categorized as base and front-end technologies.Research limitations/implicationsThe findings suggest that value delivery-based differentiation provides new avenues for value creation and innovative forms of value capture in CEDBMs.Practical implicationsPractitioners can use the findings to develop a roadmap for Industry 4.0-driven technological solutions for CE.Social implicationsCE-driven processes of manufacturing provide not only opportunities for value capture, creation and delivery but also avenues for customer-centric product and service development and effective resource utilization.Originality/valueThis paper is the first to identify value creation, delivery and capture processes along with Industry 4.0-enabled manufacturing processes.
Does striking a balance pay off? Implications of innovative ambidexterity for SMEs during COVID-19 crisis
Authors: Smara Rafik , Bogatyreva Karina , Laskovaia Anastasiia , Van Wagoner Hunter Phoenix 
Published: October 2022

Purpose
Exploration and exploitation have long been documented as prominent approaches to business management and organizational adaptation to external environment. Maintaining balance between these activities is a key to survival and prosperity. However, there is little direct evidence of the effect of such combined usage of both approaches on firm performance in times of crisis, especially within small- and medium-sized enterprises (SMEs). The purpose of this paper is to reveal the role of balanced ambidexterity in shaping firm performance during COVID-19 recession.

Design/methodology/approach
Based on a survey of 333 Russian SMEs, the authors test the proposed theoretical framework linking innovative ambidexterity to firm performance level and variability taking into account technological uncertainty.

Findings
The results show that innovative ambidexterity tends to increase level and decrease variability of performance outcomes, whereas technological uncertainty acts as a positive contingency for this impact.

Originality/value
The results provide an improved understanding of ambidexterity and organizational literatures by clarifying the contingent nature of the ambidexterity–firm performance relationship during COVID-19 recession.
COVID-19: the impact of the pandemic fear on IPO underpricing
Authors: Fedorova Elena , Chertsov Pavel , Kuzmina Anna 
Published: October 2022

Purpose
The purpose of this study is to assess how the information disclosed in prospectuses impacted the initial public offering (IPO) underpricing at a time of high government interference amid the ongoing pandemic.

Design/methodology/approach
The design of this study has several tracks, namely, a macro-level track, which is represented by the government measures to halt the pandemic; a micro-level track, which is followed by textual analysis of IPO prospectuses; and, finally, a machine learning track, in which the authors use state-of-the-art tools to improve their linear regression model.

Findings
The authors found that strict government anti-COVID-19 measures indeed contribute to the reduction of the IPO underpricing. Interestingly, the mere fact of such measures taking place is enough to take effect on financial markets, regardless of the resulting efficiency of such measures. At the micro-level, the authors show that prospectus sentiments and their significance differ across prospectus sections. Using linear regression and machine learning models, the authors find robust evidence that such sections as “Risk factors”, “Prospectus summary”, “Financial Information” and “Business” play a crucial role in explaining the underpricing. Their effect is different, namely, it turns out that the more negative “Risk factors” and “Financial Information” sentiment, the higher the resulting underpricing. Conversely, the more positive “Prospectus summary” and “Business” sentiments appear, the lower the resulting underpricing is. In addition, we used machine learning methods. Consisting of more than 580 IPO prospectuses, the study sample required modern and powerful machine learning tools like Isolation Forest for pre-processing or Random Forest Regressor and Light Gradient Boosting Model for modelling purposes, which enabled the authors to gain better results compared to the classic linear regression model.

Originality/value
At the micro level, this study is not confined to 2020, but also embraces 2021, the year of the record number of IPOs held. Moreover, in this paper, these were prospectuses that served as a source of management sentiment. In addition, the authors used a tailor-made government stringency index. At the micro level, basing the study on behavioural finance hypotheses, the authors conducted both separate and holistic analysis of prospectuses to assess investors’ reaction to different aspects of IPO companies as well as to the characteristics of the IPOs themselves. Lastly, the authors introduced a few innovations to the research methodology. Textual analysis was conducted on a corpus of prospectuses included in a study sample. However, the authors did not use pre-trained dictionaries, but instead opted for FLAIR, a modern open-source framework for natural language processing.
Development and validation of the Jordanian food purchasing habits survey
Authors: Abu Zeinah Zeinah , Al Sayyed Hiba , Al-Awwad Narmeen 
Published: October 2022

PurposeThe authors developed and validated a questionnaire called “The Jordanian Food Purchasing Habits Survey” (JFPHS). The purpose of this questionnaire was to explore Jordanians’ food purchasing habits and the factors which may affect these habits among a convenient sample of people. To the best of the authors’ knowledge, no such questionnaires have been developed to measure these factors for the Jordanian population. This paper aims to describe the reasoning behind and the process of developing the (JFPHS).Design/methodology/approachThe JFPHS investigated meal preparation and grocery shopping behaviors, nutrition label use and factors affecting purchasing of 13 (n= 13) food groups. A two-step process, a pilot test and validity study, were used to validate the questionnaire. Internal consistency (split-half reliability) tests were run on the factors in each individual food group producing Spearman–Brown correlation coefficients.FindingsA convenient sample of 483 individuals (118 males, 365 females) participated in the study. Spearman–Brown correlation coefficients were < 0.7 for bread and between 0.7–0.8 and 0.8–0.9 for other food groups. The ingredients list grid and the expiry date grid had Spearman–Brown coefficient values > 0.9.Social implicationsThis questionnaire is a valid tool to assess food purchasing behavior. Results from our questionnaire, when published, may be used to monitor trends in food consumption.Originality/valueTo the best of the authors’ knowledge, no such questionnaires been developed to measure these factors for the Jordanian population.
A qualitative approach to unravel young children’s advertising literacy for YouTube advertising: in-depth interviews with children and their parents
Authors: Loose Femke , Hudders Liselot , De Jans Steffi , Vanwesenbeeck Ini 
Published: October 2022

Purpose
This study aims to examine young children’s (ages 4 to 7) knowledge and skills (i.e. their advertising literacy) for television (TV) commercials, YouTube pre-roll ads and influencer marketing. Furthermore, this study explores how parental perceptions and practices and children’s social abilities influence the development of their advertising literacy.

Design/methodology/approach
Semi-structured in-depth interviews were conducted with parents (N = 35) and their child(ren) (ages 4 to 7, N = 40).

Findings
Results revealed preschool children have advertising literacy skills for TV commercials and YouTube pre-roll ads, but not for influencer marketing. These skills are limited to advertising recognition based on perceptual cues and a simple understanding of selling intent. Children’s advertising skills evolved according to age but did not relate to social development. Furthermore, advertising literacy was related to parental media mediation: the more restrictive parents were regarding media use, the less advertising literacy their children appeared to have. No moral reflections regarding advertising were found among the preschool children.

Originality/value
This study fills significant gaps in the literature on young children and advertising. It conducts a qualitative investigation into young children’s knowledge of digital advertising formats (pre-roll ads and influencer marketing) and how they differ from traditional advertising (TV commercials). Furthermore, it takes both parental influences and social developmental variables into account.
Widespread variation in functional trait–vital rate relationships in tropical tree seedlings across a precipitation and soil phosphorus gradient
Authors: Browne Luke , Markesteijn Lars , Manzané‐Pinzón Eric , Wright S. Joseph , Bagchi Robert , Engelbrecht Bettina M. J. , Jones F. Andrew , Comita Liza S. 
Published: October 2022

Abstract

A fundamental assumption of functional ecology is that functional traits are related to interspecific variation in performance. However, the relationship between functional traits and performance is often weak or uncertain, especially for plants. A potential explanation for this inconsistency is that the relationship between functional traits and vital rates (e.g. growth and mortality) is dependent on local environmental conditions, which would lead to variation in trait–rate relationships across environmental gradients.

In this study, we examined trait–rate relationships for six functional traits (seed mass, wood density, maximum height, leaf mass per area, leaf area and leaf dry matter content) using long‐term data on seedling growth and survival of woody plant species from eight forest sites spanning a pronounced precipitation and soil phosphorus gradient in central Panama.

For all traits considered except for leaf mass per area–mortality, leaf mass per area–growth and leaf area–mortality relationships, we found widespread variation in the strength of trait–rate relationships across sites. For some traits, trait–rate relationships showed no overall trend but displayed wide site‐to‐site variation. In a small subset of cases, variations in trait–rate relationships were explained by soil phosphorus availability.

Our results demonstrate that environmental gradients have the potential to influence how functional traits are related to growth and mortality rates, although much variation remains to be explained. Accounting for site‐to‐site variation may help resolve a fundamental issue in trait‐based ecology—that traits are often weakly related to performance—and improve the utility of functional traits for explaining key ecological and evolutionary processes.

Read the free Plain Language Summary for this article on the Journal blog.
Host density has limited effects on pathogen invasion, disease‐induced declines and within‐host infection dynamics across a landscape of disease
Authors: Wilber Mark Q. , Knapp Roland A. , Smith Thomas C. , Briggs Cheryl J. 
Published: October 2022

Abstract1. Host density is hypothesized to be a major driver of variability in the responses and outcomes of wildlife populations following pathogen invasion. While the effects of host density on pathogen transmission have been extensively studied, these studies are dominated by theoretical analyses and small‐scale experiments. This focus leads to an incomplete picture regarding how host density drives observed variability in disease outcomes in the field.2. Here, we leveraged a dataset of hundreds of replicate amphibian populations that varied by orders of magnitude in host density. We used these data to test the effects of host density on three outcomes following the arrival of the amphibian‐killing fungal pathogen Batrachochytrium dendrobatidis (Bd): the probability that Bd successfully invaded a host population and led to a pathogen outbreak, the magnitude of the host population‐level decline following an outbreak and within‐host infection dynamics that drive population‐level outcomes in amphibian–pathogen systems.3. Based on previous small‐scale transmission experiments, we expected that populations with higher densities would be more likely to experience Bd outbreaks and would suffer larger proportional declines following outbreaks. To test these predictions, we developed and fitted a Hidden Markov Model that accounted for imperfectly observed disease outbreak states in the amphibian populations we surveyed.4. Contrary to our predictions, we found minimal effects of host density on the probability of successful Bd invasion, the magnitude of population decline following Bd invasion and the dynamics of within‐host infection intensity. Environmental conditions, such as summer temperature, winter severity and the presence of pathogen reservoirs, were more predictive of variability in disease outcomes.5. Our results highlight the limitations of extrapolating findings from small‐scale transmission experiments to observed disease trajectories in the field and provide strong evidence that variability in host density does not necessarily drive variability in host population responses following pathogen arrival. In an applied context, we show that feedbacks between host density and disease will not necessarily affect the success of reintroduction efforts in amphibian‐Bd systems of conservation concern.
Resistance of termite mounds to variation in long‐term fire regimes across semi‐arid African savannas
Authors: Hockridge Evan G. , Singh Jenia , Boucher Peter B. , Davies Andrew B. 
Published: October 2022

Abstract

Fire regimes are expected to change with climate change, resulting in a crucial need to understand the specific ways in which variable fire regimes impact important contributors to ecosystem functioning, such as mound‐building termites. Termite mounds and fire are both important agents of savanna ecosystem heterogeneity and functioning, but there is little understanding of how they interact across savanna types.

We used very high‐resolution LiDAR remote sensing to measure the size and distribution of termite mounds across approximately 1300 ha of experimental burn plots in four South African savanna landscapes representing a wide range of fire treatments differing in seasonality and frequency of burning.

In nutrient‐poor granitic savannas, fire had no impact on termite mound size, densities and spatial distributions. In nutrient‐rich basaltic savannas with high mammalian herbivore abundance and intermediate rainfall, very frequent fires caused a decrease in termite mound size, whereas in arid nutrient‐rich basaltic savannas, fires that occurred at intermediate frequencies and in transitional seasons (i.e. late dry season and late wet season) decreased the degree of spatial overdispersal exhibited by mounds.

Overall, our results suggest that termite mounds are resistant to variation in fire seasonality and frequency, likely indicating that ecosystem services provided by mound‐building termites will be unaffected by changing fire regimes. However, consideration of changes to termite mound size and distribution could be necessary for land managers in specific savanna types, such as nutrient‐rich soils with high mammalian herbivore abundance.
Parenting with a physical disability: A scoping review of assessment methods
Authors: Pastor‐Bédard Nadielda , Pituch Evelina , Lamata Estelle , Grondin Myrian , Bottari Carolina 
Published: October 2022

AbstractIntroductionDaily childcare can be challenging for parents with a physical disability who have young children. Occupational therapists are valuable facilitators to family participation. However, occupational therapists have reported significant gaps in knowledge when documenting the parenting role of parents with a physical disability in occupational therapy practice. This study explored and described the parenting assessment methods used with parents with a physical disability in the scientific literature.MethodsA scoping review was conducted, and search results were reviewed by two separate reviewers. The search strategy was applied to five databases (Embase, CINAHL, MEDLINE, HaPI, PsycInfo). Numerical and thematic analyses were conducted.ResultsFour thousand one hundred fifty articles were screened, and 73 relevant scientific articles were included. Seventy‐six assessment methods were identified, including 20 assessment instruments with few reported population‐specific psychometric studies. Most assessments were conducted via interviews (n = 45), followed by questionnaires (n = 27), and only six were performance based. Parenting practices and experience were the two dimensions most assessed, with little attention given to parenting responsibility. Mothers with multiple sclerosis, spinal cord injury, rheumatoid arthritis, and cerebral palsy were the most assessed.ConclusionFurther research is needed to develop specific, multidimensional, and validated parenting assessments for all parents with a physical disability, including performance‐based assessments. Formal assessments should be conducted by professionals, including occupational therapists, who have the necessary training.
Constituting link working through choice and care: An ethnographic account of front‐line social prescribing
Authors: Griffith Bethan , Pollard Tessa , Gibson Kate , Jeffries Jayne , Moffatt Suzanne 
Published: October 2022

AbstractLink worker social prescribing has become a prominent part of NHS England’s personalisation agenda. However, approaches to social prescribing vary, with multiple discourses emerging about the potential of social prescribing and different interpretations of personalisation. The transformational promise of social prescribing is the subject of ongoing debate, whilst the factors that shape the nature of front‐line link working practices remain unclear. Based on 11 months of in‐depth ethnographic research with link workers delivering social prescribing, we show how link workers’ practices were shaped by the context of the intervention and how individual link workers navigated varied understandings of social prescribing. Following the work of Mol, we show how link workers drew differentially on the interacting logics of choice and care and trace a multiplicity in front‐line link working practices within a single intervention. However, over time, it appeared that a logic of choice was becoming increasingly dominant, making it harder to deliver practices that aligned with a logic of care. We conclude that interpreting personalisation through a logic of choice could potentially undermine link working practices that privilege care whilst obscuring the need for wider investment in health care systems and the social determinants of health.
BETWEENCHAIANDQIAN: How Unfinishedness and Ruination Have Reshaped Urbanity in China's ‘Coal Capital’ after the Construction Boom
Authors: Audin Judith 
Published: October 2022

AbstractDatong has for decades been known as China's ‘coal capital’. In 2008 Mayor Geng Yanbo redeveloped Datong's city centre in order to hide the coal stigma and redefine the city's identity based on its cultural heritage as a centre for Buddhist historical sites and ancient architecture. The project was interrupted in 2013 when the mayor was promoted to another city. In parallel, the coal industry was impacted by restructuring, falling prices, and stricter environmental policies. The interrupted project opened a liminal space between demolition and construction. This article studies unfinishedness and ruination in Datong after the construction boom by following the last residents living within the interrupted project. Drawing on fieldwork carried out between 2015 and 2019 that records the discourses and socio‐spatial practices of the last remaining residents, stuck betweenchai(demolition) andqian(relocation), it sheds light on their urban experiences as city dwellers in a landscape of ruins and unfinished architecture. The suspension of urban construction affects both these residents’ representations of the urban space and their ambivalent feelings towards the past, present and future, opening new perspectives for research on the urbanity of booms and busts in Chinese cities.