bluuebunny/crossref_metadata_2025_split huggingface dataset:
Technology integration needs empowered instructional coaches: accompanying in-service teachers in school digitalization
Authors: Caneva Christiane , Monnier Emilie , Pulfrey Caroline , El-Hamamsy Laila , Avry Sunny , Delher Zufferey Jessica 
Published: March 2023

PurposeIn digital education curricular initiatives, some teachers are taking on key roles when appointed as instructional coaches (ICs) and become crucial in the sustainability of the initiative by coaching teachers. This study aimed to find out the difficulties ICs are facing when mentoring teachers in the development of the digital skills and to identify the coaching activities the coaches offer.Design/methodology/approachEmploying a mixed-methods research design focusing on a qualitative approach, the research team conducted 6 focus groups with 38 ICs from 12 primary schools in Switzerland. Quantitative descriptive data were collected through a survey submitted before and after the focus group.FindingsThe results indicate that (1) the professional development (PD) activities offered to teachers vary greatly depending on the instructional coach characteristics and the school to which the teachers belong, (2) the in-service training of ICs should include coaching and leadership skills and (3) distributed leadership to ICs could facilitate the adoption of technologies by teachers and support change in the school.Practical implicationsSome ICs offer activities with a low involvement of the teacher. ICs' training programs should provide strategies to better take advantage of PD activities. The authors suggest training ICs in PD activities, aligned with Gibbons and Cobb's (2017) such as analyzing classroom video or lesson study involving a group of teachers working together with an expert to improve a lesson. District and school leaders should provide ICs with explicit guidance and more resources to achieve systemic change. ICs should also be empowered by being involved in the development of the school's continuing education training plans.Originality/valueThis study presents a new perspective about understanding and applying in-service teacher PD in the context of a digital education curricular initiative.
The role of university instructor’s narrative in students’ sustained attention, emotional involvement and cognitive learning
Authors: Ghanizadeh Afsaneh , Tabeie Mahtab , Pourtousi Zahra 
Published: March 2023

PurposeStorytelling is a method for training essential life issues as storytelling can assist learners to consider the story not just as a source of entertainment but as a practical lesson. In fact, teachers can encourage even the most unwilling students by engaging the students in storytelling while maintaining students' attention through narration using sounds and gestures. The present study aims to examine the effect of the university instructor’s narrative on English as a Foreign Language (EFL) student’s sustained attention, emotional involvement and cognitive learning.Design/methodology/approachTo do so, the study adopted a quasi-experimental research design with the aim of focusing on the students’ performance within two different virtual classes. University students’ sustained attention, emotional involvement and cognitive learning were assessed in control and experimental groups before and after the treatment. To measure students’ sustained attention, Weiet al.’s (2012) scale, which comprises six items, was used. Besides, emotional involvement was assessed through Golestani’s (2017) engagement questionnaire. To check students’ cognitive learning, the scale designed by Richmondet al.(1987) was utilized. The summaries and conclusions in the experimental class were ingrained in instructors’ pedagogical repertoires, as the repertoires offer students an alternative way to understand course material beyond a straight lecture. Students in the experimental group were also asked to ponder over the materials presented to the students each session, and the students were supposed to present a one to two-paragraph note on the possible implications of the materials instructed at each session.FindingsThe results of independent samplest-test indicated that there was a statistically significant difference between the two groups regarding the degree of their sustained attention, emotional involvement and cognitive learning. The findings of the present study can raise instructors’ awareness toward the application of narratives in their instructional methodologies, as well as putting forth significant strategies to enhance students’ sustained attention, emotional involvement and cognitive learning through narratives.Originality/valueThe theoretical framework of the study derives from Kromka and Goodboys (2018) conceptualization of instructor narrative (IN), defined as the explicit presentation of the lessons conclusion at the end of each session. Previous studies on narrative have primarily focused on learners’ narrative as an educational tool. Later studies on teacher narratives conceive this as the teachers’ personal anecdotes and story-like accounts of others’ experiences; nonetheless, the position which is taken in this study is more academically laden and is based on the information instructed in each session.
An investigation on the cyclic deformation and service life of a reusable liquid rocket engine thrust chamber wall
Authors: Gao Yushan , Zhang Ping , Huo Shihui 
Published: March 2023

PurposeRegeneratively cooled thrust chamber is a key component of reusable liquid rocket engines. Subjected to cyclic thermal-mechanical loadings, its failure can seriously affect the service life of engines. QCr0.8 copper alloy is widely used in thrust chamber walls due to its excellent thermal conductivity, and its mechanical and fatigue properties are essential for the evaluation of thrust chamber life. This paper contributes to the understanding of the damage mechanism and material selection of regeneratively cooled thrust chambers for reusable liquid rocket engines.Design/methodology/approachIn this paper, tensile and low-cycle fatigue (LCF) tests were conducted for QCr0.8 alloy, and a Chaboche combined hardening model was established to describe the elastic-plastic behavior of QCr0.8 at different temperatures and strain levels. In addition, an LCF life prediction model was established based on the Manson–Coffin formula. The reliability and accuracy of models were then verified by simulations in ABAQUS. Finally, the service life was evaluated for a regenerative cooling thrust chamber, under the condition of cyclic startup and shutdown.FindingsIn this paper, a Chaboche combined hardening model was established to describe the elastoplastic behavior of QCr0.8 alloy at different temperatures and strain levels through LCF experiments. The parameters of the fitted Chaboche model were simulated in ABAQUS, and the simulation results were compared with the experimental results. The results show that the model has high reliability and accuracy in characterizing the viscoplastic behavior of QCr0.8 alloy.Originality/value(1)The parameters of a Chaboche combined hardening constitutive model and LCF life equation were optimized by tensile and strain-controlled fatigue tests of QCr0.8 copper alloy. (2) Based on the Manson–Coffin formula, the reliability and accuracy of constitutive model were then verified by simulations in ABAQUS. (3)Thermal-mechanical analysis was carried out for regeneratively cooled thrust chamber wall of a reusable liquid rocket engine, and the service life considering LCF, creep and ratcheting damage was analyzed.
Towards a model of service excellence at a community college in Trinidad and Tobago
Authors: Persad Doodnath , Farrell Permilla , Alonzo-Williams Carla , Sargeant Roxanne 
Published: March 2023

Purpose
Unless higher education institutions ensure that first-rate academic programme offerings are supported with the provision of high-quality services, student satisfaction, retention, enrolment and ultimately, viability of the institutions will be adversely affected (Canic and McCarthy, 2000). The purpose of this paper is to evaluate the quality of selected administrative and academic support services by a community college in Trinidad and Tobago using a performance-only model of service quality (SERVPERF). This also informed the development of a service quality construct unique to the particular educational setting.

Design/methodology/approach
A multi-method approach was adopted where qualitative data from focus groups and two routine institutional surveys were triangulated with quantitative data from a slightly modified SERVPERF survey administered to separate random samples of students. Principal component analysis was also used to examine the unique service quality dimensions in this setting.

Findings
Results indicated that students had major issues with the timeliness of responses and staff not taking time to understand their needs. They also placed a high value on knowledge and courtesy of staff. Three separable dimensions of service quality (effectiveness and efficiency; professional and personal touch; and tangibles) emerged from the analysis.

Originality/value
This research demonstrated an appropriate approach which could be used to evaluate overall service quality as well as develop an instrument to routinely monitor, assess and inform improvements to service quality at similar types of tertiary-level educational institutions.
Competition and firm performance: evidence from Vietnam
Authors: Tuyet Nguyen Le Hoa , Ninh Le Khuong 
Published: March 2023

Purpose
This paper aims to examine the impact of competition on firm performance using a data set of 352 firms listed on Vietnam’s stock exchanges from 2015 to 2019.

Design/methodology/approach
The two-step system generalized method of moments is used to estimate this impact.

Findings
The findings reveal an inverted U-shaped relationship between competition and firm performance. Competition improves firm performance if its intensity is moderate. However, if the competition intensity exceeds the optimal level, the performance deteriorates accordingly.

Research limitations/implications
The authors only studied Vietnamese firms due to the limited ability in data collection. It would be better to validate the findings using data from other transition economies.

Practical implications
The non-linear relationship between competition and performance implies that government should pay more attention to retaining competition at an appropriate level.

Social implications
Firms contribute a lot to the prosperity of Vietnam. Therefore, the findings have a meaningful implication for Vietnam’s government to moderate competition to improve its firms’ performance.

Originality/value
This paper contributes to the extant literature by providing firsthand evidence of the impact of competition on firm performance in Vietnam – a transition economy.
Linking trait network parameters with plant growth across light gradients and seasons
Authors: Rao Qingyang , Chen Jianfeng , Chou Qingchuan , Ren Wenjing , Cao Te , Zhang Meng , Xiao Huoqing , Liu Zugen , Chen Jun , Su Haojie , Xie Ping 
Published: March 2023

Abstract

Reduced light availability induced by eutrophication has dramatically affected the growth of submerged macrophytes and caused their rapid decline globally in lakes. Functional traits have usually been used to predict ecological processes and explain plant adaptation. Trait networks, which are constructed from a series of nodes (traits) and edges (trait–trait correlations), can reveal complex relationships among traits. Plant traits belonging to different organs are considered relevant for overall plant performance. Therefore, variation in trait network topology at the whole plant level can better reflect plant adaptation and response to environments than traditional methods, but the mechanisms underlying the decline of plants from a trait network perspective are not well understood.

In this study, based on a 1‐year manipulation experiment for Potamogeton maackianus cultured with four levels of light intensity, we constructed trait networks from 20 traits belonging to different organs.

Our results showed that trait network connectivity decreases in harsh environments, probably due to increased trait modules responding independently to stress. Network connectivity was positively related to the plant relative growth rate (RGR), as high trait connectivity and coordination should be beneficial for plants to acquire and transport resources efficiently across the whole plant. Additionally, we found that specific stem length, leaf: root mass ratios and leaf total non‐structural carbohydrates were hub traits with high connectivity. Hub traits expressed high phenotypic plasticity, had close links with plant growth and consistently held their higher importance within the network across light gradients or seasons.

We found that low phenotypic integration in stressful environments may constrain plant growth, which can provide important implications for understanding plant adaptation strategies to low‐light stress and even predicting community dynamics in the context of global environmental change.

Read the free Plain Language Summary for this article on the Journal blog.
A life‐history spectrum of population responses to simultaneous change in climate and land use
Authors: Buderman Frances E. , Devries James H. , Koons David N. 
Published: March 2023

Abstract

Climate and land use change are two of the primary threats to global biodiversity; however, each species within a community may respond differently to these facets of global change. Although it is typically assumed that species use the habitat that is advantageous for survival and reproduction, anthropogenic changes to the environment can create ecological traps, making it critical to assess both habitat selection (e.g. where species congregate on the landscape) and the influence of selected habitats on the demographic processes that govern population dynamics.

We used a long‐term (1958–2011), large‐scale, multi‐species dataset for waterfowl that spans the United States and Canada to estimate species‐specific responses to climate and land use variables in a landscape that has undergone significant environmental change across space and time. We first estimated the effects of change in climate and land use variables on habitat selection and population dynamics for nine species. We then hypothesized that species‐specific responses to environmental change would scale with life‐history traits, specifically: longevity, nesting phenology and female breeding site fidelity.

We observed species‐level heterogeneity in the demographic and habitat selection responses to climate and land use change, which would complicate community‐level habitat management. Our work highlights the importance of multi‐species monitoring and community‐level analysis, even among closely related species.

We detected several relationships between life‐history traits, particularly nesting phenology, and species' responses to environmental change. One species, the early‐nesting northern pintail (Anas acuta), was consistently at the extreme end of responses to land use and climate predictors and has been a species of conservation concern since their population began to decline in the 1980s. They, and the blue‐winged teal, also demonstrated a positive habitat selection response to the proportion of cropland on the landscape that simultaneously reduced abundance the following year, indicative of susceptibility to ecological traps.

By distilling the diversity of species' responses to environmental change within a community, our methodological approach and findings will help improve predictions of community responses to global change and can inform multi‐species management and conservation plans in dynamic landscapes that are based on simple tenets of life‐history theory.
Large‐scale impacts of selective logging on canopy tree beta‐diversity in the Brazilian Amazon
Authors: Bousfield Christopher G. , Massam Mike R. , Peres Carlos A. , Edwards David P. 
Published: March 2023

Abstract

Selective logging is one of the largest drivers of tropical forest degradation. While logged forests often retain high alpha‐diversity of tropical trees at local spatial scales, understanding how selective logging impacts tree beta‐diversity and community composition across far larger spatial scales remains a key unresolved question.

We leverage large datasets of more than 155,000 adult trees over 35 cm DBH covering 3100 ha of Amazonian rainforest to inform simulations of selective logging harvests across a gradient of logging intensity (0–40 m3 ha−1). These simulations incorporate real world price data, account for all forest damage throughout the harvest process and assume preferential harvest of the most valuable stems. We use the simulations to assess how selective logging affects canopy tree beta‐diversity and composition across large spatial scales, whether nestedness or turnover of species best explains variation in communities across space, and how the spatial scale of sampling influences observed beta‐diversity effects.

Selective logging had minimal impacts on beta‐diversity across the canopy tree community, but caused substantial subtractive heterogenization in community composition for larger trees, in particular very large trees over 110 cm DBH. Turnover is the dominant component of tree beta‐diversity in unlogged and logged forests. Increasing the spatial grain of sampling reduced the observed importance of logging in explaining patterns of beta‐diversity in very large tree communities.

Synthesis and applications. Minimal impacts on tree beta‐diversity across large spatial scales points towards the retention of substantial conservation value in logged tropical forests. Strong subtractive heterogenization in very large trees indicates the breakdown of broad scale patterns of composition with potential negative consequences for recruitment processes, fauna reliant upon emergent trees, and other ecosystem functions and services. Avoiding large‐scale erosion of very large tree community composition in the Amazon requires stronger conservation policies, including enforced retention or maximum cutting diameters.
GOVERNING MIGRATION THROUGH SMALL TOWNS: Dispersal and the Production of Spaces of Transit
Authors: Kreichauf Rene 
Published: March 2023

AbstractBased on qualitative long‐term fieldwork conducted in a peripherally located small town in East Germany, this article compares the dispersal of repatriates from the former Soviet Union with that of recent refugee arrivals. It shows that in this small town the dispersal and local governance of refugees builds on previous approaches to dealing with repatriates. Such approaches repeatedly result in cycles of localized distribution and subsequent small‐scale segregation, short‐term integration activities, the detachment of both groups from the town and, finally, migrants’ subsequent outmigration and relocation to other (mostly larger) cities. To make sense of this path dependency in terms of its specific patterns and characteristics, and to explore the relationships between dispersal, local policy framings, and in‐ and outmigration to and from small towns, I apply a studying through dispersal approach. This approach reveals that dispersal is an important factor in making and unmaking local migration policies. It can turn small towns into productive sites for migration governance, often transforming them into mere waiting zones and transit spaces. This not only continues migrants’ experiences of displacement but also impacts on the image of the small town, where migrants themselves may not want to reside permanently.
The self in selfies—Conceptualizing the selfie‐coordination of marginalized youth with sociology of engagements
Authors: Meriluoto Taina 
Published: March 2023

AbstractThis article develops a theory of selfies as reflexive practices of self‐coordination. Building on pragmatist sociology of engagements, I conceptualize selfies as digital practices of coordinating with the self in formats that are recognizable for others. This framework allows approaching the self as an act of coordination, simultaneously shaped by, and equipped to subvert the cultural conditions of how we ought to be. As these conditions are increasingly enforced and negotiated in the socio‐technological arrangements of digital platforms, the article proposes an approach for making sense of selfies as key contemporary tools of self‐making. Based on ethnographic work among activists with marginalizing experiences, I ask how the self is coordinated in the activists' selfies. I identify four ways of coordinating with the self in selfies: the self in a plan, the self in exploration, the affirmed self, and the self as public critique. The article contributes to our understanding on how practices of self‐making evolve in an increasingly visual‐digital society, and provides an approach for conceptualising the self as plural. By approaching the selfie as different formats of relating to the self, the framework proposed accounts for the possibility of multiple selves now afforded by digital technologies and enables analysing their politicizing potential.
Legume byproducts as ingredients for food applications: Preparation, nutrition, bioactivity, and techno‐functional properties
Authors: Nartea Ancuta , Kuhalskaya Anastasiya , Fanesi Benedetta , Orhotohwo Oghenetega Lois , Susek Karolina , Rocchetti Lorenzo , Di Vittori Valerio , Bitocchi Elena , Pacetti Deborah , Papa Roberto 
Published: March 2023

AbstractThe demand for high‐quality alternative food proteins has increased over the last few decades due to nutritional and environmental concerns, leading to the growing consumption of legumes such as common bean, chickpea, lentil, lupin, and pea. However, this has also increased the quantity of non‐utilized byproducts (such as seed coats, pods, broken seeds, and wastewaters) that could be exploited as sources of ingredients and bioactive compounds in a circular economy. This review focuses on the incorporation of legume byproducts into foods when they are formulated as flours, protein/fiber or solid/liquid fractions, or biological extracts and uses an analytical approach to identify their nutritional, health‐promoting, and techno‐functional properties. Correlation‐based network analysis of nutritional, technological, and sensory characteristics was used to explore the potential of legume byproducts in food products in a systematic manner. Flour is the most widely used legume‐based food ingredient and is present at levels of 2%–30% in bakery products, but purified fractions and extracts should be investigated in more detail. Health beverages and vegan dressings with an extended shelf‐life are promising applications thanks to the techno‐functional features of legume byproducts (e.g., foaming and emulsifying behaviors) and the presence of polyphenols. A deeper exploration of eco‐friendly processing techniques (e.g., fermentation and ohmic treatment) is necessary to improve the techno‐functional properties of ingredients and the sensory characteristics of foods in a sustainable manner. The processing of legume byproducts combined with improved legume genetic resources could enhance the nutritional, functional, and technological properties of ingredients to ensure that legume‐based foods achieve wider industrial and consumer acceptance.