bluuebunny/crossref_metadata_2025_split huggingface dataset:
ServiceNet: resource-efficient architecture for topology discovery in large-scale multi-tenant clouds
Authors: Gama Garcia Angel , Alcaraz Calero Jose M. , Mora Mora Higinio , Wang Qi 
Published: April 2024

AbstractModern computing infrastructures are evolving due to virtualisation, especially with the advent of 5G and future technologies. While this transition offers numerous benefits, it also presents challenges. Consequently, understanding these complex systems, including networks, services, and their interconnections, is crucial. This paper introduces ServiceNet, a groundbreaking architecture that accurately performs the important task of providing understanding of a multi-tenant architecture by discovering the complete topology, crucial in the realm of high-performance distributed computing. Experimental results have been carried out in different scenarios in order to validate our approach, demonstrating the effectiveness of our approach in comprehensive multi-tenant topology discovery. The experiments, involving up to forty tenant, highlight the adaptability of ServiceNet as a valuable tool for real-time monitoring in topology discovery purposes, even in challenging scenarios.
Prediction and Allocation of Stocks, Bonds, and REITs in the US Market
Authors: Monteiro Ana Sofia , Sebastião Helder , Silva Nuno 
Published: April 2024

AbstractThis study employs dynamic model averaging and selection of Vector Autoregressive and Time-Varying Parameters Vector Autoregressive models to forecast out-of-sample monthly returns of US stocks, bonds, and Real Estate Investment Trusts (REITs) indexes from October 2006 to December 2021. The models were recursively estimated using 17 additional predictors chosen by a genetic algorithm applied to an initial list of 155 predictors. These forecasts were then used to dynamically choose portfolios formed by these assets and the riskless asset proxied by the 3-month US treasury bills. Although we did not find any predictability in the stock market, positive results were obtained for REITs and especially for bonds. The Bayesian-based approaches applied to just the returns of the three risky assets resulted in portfolios that remarkably outperform the portfolios based on the historical means and covariances and the equally weighted portfolio in terms of certainty equivalent return, Sharpe ratio, Sortino ratio and even Conditional Value-at-Risk at 5%. This study points out that Constant Relative Risk Averse investors should use Bayesian-based approaches to forecast and choose the investment portfolios, focusing their attention on different types of assets.
Addressing gender in STEM classrooms: The impact of gender bias on women scientists' experiences in higher education careers in Germany
Authors: Kube Dana , Weidlich Joshua , Kreijns Karel , Drachsler Hendrik 
Published: April 2024

AbstractGender bias underlying discrimination against women are particularly salient in STEM higher education. Complementing top-down measures to mitigate these issues identified in the extant literature, we aim to highlight a complementary bottom-up approach. First, to elicit gender stereotypes and gender bias in STEM, we conducted a group concept mapping (GCM) study involving women professors, teaching staff, and scientific staff from different STEM disciplines at German universities (N = 70). We first asked them to provide statements reflecting their experience in response to the following focus prompt: ‘In my career as a STEM teacher, I experienced gender issues related to:’ Experts were then asked to thematically cluster and rank the statements according to their importance and feasibility with respect to a potential pedagogical intervention that may target these issues. Findings revealed an agreement across STEM disciplines regarding stereotypical beliefs about women, heteronomous gender roles, gender workload, sexism, and structural power relations, in that they remain significant factors for hindering female success in STEM careers in higher education. Based on their experience, however, the women saw potential in working on the awareness of gender bias with pedagogical interventions in online group learning scenarios (CSCL). Statements rated most appropriate were discussed in the light of the aspects of gender bias addressed, with a specific focus on addressing them in collaborative scripts.
Widen the debate: What is the academic community’s perception on ChatGPT?
Authors: Jiang Yingying , Xie Lindai , Lin Guohui , Mo Fangfang 
Published: April 2024

AbstractChatGPT has surprised academia with its remarkable abilities but also raised substantial concerns regarding academic integrity and misconduct. Despite the debate, empirical research exploring the issue is limited. The purpose of this study is to bridge this gap by analyzing Twitter data to understand how academia is perceiving ChatGPT. A total of 9733 tweets were collected through Python via Twitter API in three consecutive weeks in May and June 2023; and 3000 most relevant ones were analyzed in Atlas ti. 23. Our findings reveal a generally supportive attitude towards using ChatGPT in academia, but the absence of clear policies and regulations requires attention. Discussions primarily focus on academic integrity, learning effectiveness, and teaching efficiency. Tweets from influencers with over one million followers were analyzed separately. The significance of these findings and the limitations of the study are included.
Exploring secondary school students’ geometrical figure apprehension: cognitive structure and levels of geometrical ability
Authors: Michael–Chrysanthou Paraskevi , Panaoura Areti , Gagatsis Athanasios , Elia Iliada 
Published: April 2024

AbstractThe present study examines secondary school students’ geometrical figure apprehension based on Duval’s theoretical framework regarding perceptual, operative, and discursive apprehension. The aim is to explore the cognitive structure of the geometrical figure apprehension dimensions (operative, discursive, and perceptual) in three grades of secondary school students. The tasks in the present study were completed by a sample of 881 students attending public secondary education in Cyprus. Confirmatory factor analysis indicated the stability of the structure of the model concerning secondary school students’ geometrical figure apprehension. However, differences were found in the interrelations among the three main aspects of the model in the examined grades (9, 10, and 11). Moreover, it was observed that students find it easier to solve tasks involving perceptual apprehension compared to discursive apprehension tasks, indicating a possible hierarchical structure of figure apprehension. The present study acts as a pilot study of the constructed instrument. Finally, the results are interpreted in relation to the type of geometrical paradigm in which students work at each hierarchical level.
Visual quality assesment in recreational and touristic landscape
Authors: Adıgüzel Elif , Batman Zeynep Pirselimoglu 
Published: April 2024

AbstractAlthough the landscape quality parameter in rural areas, which is called landscape beauty, varies according to the way the individual perceives the landscape, being able to perceive and understand the landscape visually in rural and urban landscape areas, natural and cultural tourism and recreation areas is directly related to whether that recreational area is used actively or not. This study aims to examine the effect of perceptual landscape parameters in touristic and recreational landscape character. In this study, it was investigated how the recreational and touristic landscape character can be emphasized with visual quality value. For this purpose, Gölbaşı Pond and its surroundings in Bursa in Turkey, which has a rich landscape character selected as study area, by evaluating the area’s visual landscape quality. The method of the study visual quality analysis was performed and the data obtained by visual quality analysis were compared. As a result, Gölbaşı Pond and its surroundings with its natural beauty and nature, as well as its landscape qualities suitable for recreational activities, provide opportunities for many recreational activities, and the study concluded that all landscape quality parameters support each other and create a potential for more.
Does goal revision undermine self-regulation through goals? An experiment
Authors: Kaiser Jonas Pilgaard , Koch Alexander K. , Nafziger Julia 
Published: April 2024

AbstractWe offer a novel test of whether non-binding goals set ahead of a task are effective motivators, taking into account that individuals in principle could easily revise these goals. In our setting, subjects either set a goal some days prior to an online task (early goal) or right at the start of the task (late goal). Two further treatments allow for (unanticipated) explicit revision of the early goal. We observe that (i) early goals are larger than late goals; (ii) subjects who set early goals work more than those who only set a late goal if they explicitly revise their goal and are reminded about their revised goal. A secondary contribution of our paper is that our design addresses a treatment migration problem present in earlier studies on goals that stems from the fact that subjects in a ‘no goals’ control condition may privately set goals.
Trisections obtained by trivially regluing surface-knots
Authors: Isoshima Tsukasa 
Published: April 2024

AbstractLet S be a $$P^2$$

P
2

-knot which is the connected sum of a 2-knot with normal Euler number 0 and an unknotted $$P^2$$

P
2

-knot with normal Euler number $${\pm }{2}$$

±
2

in a closed 4-manifold X with trisection $$T_{X}$$

T
X

. Then, we show that the trisection of X obtained by the trivial gluing of relative trisections of $$\overline{\nu (S)}$$

ν
(
S
)

¯

and $$X-\nu (S)$$

X
-
ν
(
S
)

is diffeomorphic to a stabilization of $$T_{X}$$

T
X

. It should be noted that this result is not obvious since boundary-stabilizations introduced by Kim and Miller are used to construct a relative trisection of $$X-\nu (S)$$

X
-
ν
(
S
)

. As a corollary, if $$X=S^4$$

X
=

S
4

and $$T_X$$

T
X

was the genus 0 trisection of $$S^4$$

S
4

, the resulting trisection is diffeomorphic to a stabilization of the genus 0 trisection of $$S^4$$

S
4

. This result is related to the conjecture that is a 4-dimensional analogue of Waldhausen’s theorem on Heegaard splittings.
Followers, customers, or partners? Comparing conceptualisations of students as partners in Australian, Mainland Chinese, and Hong Kong universities
Authors: Liang Yifei , Dai Kun , Matthews Kelly E. 
Published: April 2024

AbstractEngaging students as partners (SaP) is an approach promoting meaningful pedagogical relationships in higher education. Scholars have called for more culturally situated research on SaP that compares Anglophone countries with other contexts. In response, we conducted an exploratory qualitative study by interviewing 36 undergraduate students from Australia, Mainland China, and Hong Kong. Adopting the relational lens of SaP, the interviews focused on conceptualisations of pedagogical partnership, specifically learner–teacher identities and power dynamics. Through comparative and reflexive thematic analysis, we found that understandings of partnership in different contexts were influenced by broader cultural differences. The findings showed that the perception of SaP in Australia was consistent with the prevailing Western discourse, but the notion of SaP was adapted and re-shaped in Mainland China, and in Hong Kong, there were diverse interpretations of it. This study contributes to new understandings of the influence of specific sociocultural and policy variations in SaP practises through culturally situated and comparative research using theorisations of perpetual translation. We argue for future research to contribute collective insights and nuanced, diverse understandings that expand SaP as an approach to global scholarship.
Germ cell-specific gene 2 accelerates cell cycle in epithelial ovarian cancer by inhibiting GSK3α-p27 cascade
Authors: Zhu Keyu , Ma Xiaolu , Guan Xiaolin , Tong Ying , Xie Suhong , Wang Yanchun , Zheng Hui , Guo Lin , Lu Renquan 
Published: April 2024

AbstractEpithelial ovarian cancer (EOC) is one of the most common malignant gynecological tumors with rapid growth potential and poor prognosis, however, the molecular mechanism underlying its outgrowth remained elusive. Germ cell-specific gene 2 (GSG2) was previously reported to be highly expressed in ovarian cancer and was essential for the growth of EOC. In this study, GSG2-knockdown cells and GSG2-overexpress cells were established through lentivirus-mediated transfection with Human ovarian cancer cells HO8910 and SKOV3. Knockdown of GSG2 inhibited cell proliferation and induced G2/M phase arrest in EOC. Interestingly, the expression of p27, a well-known regulator of the cell cycle showed a most significant increase after GSG2 knockdown. Further phosphorylation-protein array demonstrated the phosphorylation of GSK3αSer21 decreased in GSG2-knockdown cells to the most extent. Notably, inhibiting GSK3α activity effectively rescued GSG2 knockdown’s suppression on cell cycle as well as p27 expression in EOC. Our study substantiates that GSG2 is able to phosphorylate GSK3α at Ser21 and then leads to the reduction of p27 expression, resulting in cell cycle acceleration and cell proliferation promotion. Thus, GSG2 may have the potential to become a promising target in EOC.
Spruce dieback as chance for biodiversity: standing deadwood promotes beetle diversity in post-disturbance stands in western Germany
Authors: Plath Eva , Fischer Klaus 
Published: April 2024

AbstractAnthropogenic climate change poses a major threat to ecosystems and their biodiversity. Forests, for example, are suffering from climate-amplified disturbances like droughts or pest outbreaks. Throughout Europe, such disturbances resulted in large-scale diebacks of managed spruce stands in recent years. While such stands are often salvage-logged to reduce economic losses, it is still rather unclear how post-disturbance management affects forest biodiversity in anthropogenic spruce stands. By comparing epigeal beetle communities among salvage-logged sites, standing deadwood patches, and succession areas, we show that spruce dieback can be a chance for biodiversity conservation. Even though individual beetle families responded partly differently to post-disturbance management, standing deadwood enhanced the overall diversity of ground-dwelling beetles compared to salvage logging, while succession sites were intermediate. We also show that community composition and functional guilds vary strongly between management categories.Implications for insect conservation: We suggest to set-aside areas of standing deadwood for natural succession to enhance beetle taxonomic and functional diversity, especially of deadwood-dependent species. As different types of management support different species assemblages, well-planned post-disturbance management, including a partial abandonment of salvage logging and a consideration of natural succession, may counter biodiversity losses in forests.
Drivers of moth phenology in England and Wales
Authors: Hickinbotham Emily J. , Pattison Zarah , Fox Richard , Rushton Steve P. 
Published: April 2024

AbstractClimate change has led to changes in the phenology of Lepidoptera species. While phenological shifts have been previously measured for moth species in England and Wales, the drivers of these shifts are not well known. Here, we use data from the National Moth Recording Scheme and the Garden Moth Scheme to investigate the drivers of phenology in 149 moth species over a 50 year period from 1970 to 2019. We investigate whether there have been phenological shifts in adult emergence using three phenology metrics: First Emergence (FE), Peak Emergence (PE), and Emergence Standard Deviation (ESD) in relation to life history traits and temperature. Overwintering stage had a significant impact on moth phenology, so we analysed species that spend the winter as eggs, larvae or pupae separately. Overall phenological changes were different depending on overwintering stage category and phenological measure, with the rate of phenological shifts increasing with later overwintering life stages in response to both temperature and year. The overwintering stage larva was the only one impacted by diet, with those that feed on woody hostplants emerging ~ 17 days later than species with herbaceous hostplants. These results indicate that species that either overwinter in earlier life stages or have woody hostplants may be less adaptable to climate change, and thus should be the targets of conservation efforts.
Alcon Blues: recent shifts in limiting habitat factors challenge the persistence of an endangered butterfly
Authors: WallisDeVries Michiel F. , Bokelaar Jens , Kok Alfred , Limpens Juul , Luijten Sheila , Oostermeijer J. Gerard B. , van Marrewijk Roel C.H. , van Stipdonk Arno H. , Vicente Inês , Vogel Cassandra , Wynhoff Irma 
Published: April 2024

AbstractInsect habitat specialists have declined more than generalists over the last decades. Understanding how habitat requirements and increased climate variability interact to explain persistence of populations is needed to enable effective conservation measures. Habitat specialists with a complex life cycle, such as myrmecophilous butterflies, are likely to be most vulnerable. Here, we explored to what extent the habitat factors explaining population persistence of the Alcon blue (Phengaris alcon), changed over a 25-year period in the Netherlands, contrasting the recent years 2018–2022 with extreme droughts with the preceding period 1998–2017 characterized by occasional climatic extremes. Population persistence of P. alcon over 1998–2017 as explained by historical habitat conditions was significantly higher in large heathland areas with large patches of its host plant Gentiana pneumonanthe. On the basis of current conditions, population persistence until 2017 was best explained by a combination of host plant area and quality. In contrast, persistence over the recent drought years was most closely associated with increasing occupancy of the optimal host ant Myrmica ruginodis and lower occupancy of competitive and predatory Lasius ants.Implications for insect conservation We conclude that critical habitat conditions change under increasing climatic extremes and that the availability of sufficient optimal host ants has become more critical than that of host plants. The results emphasise that both large-scale hydrological restoration and small-scale management for heterogeneity are necessary to preserve P. alcon and its habitat in the Netherlands. This is also likely to apply to other habitat specialists with complex life cycles from threatened habitats.
Toward sustainable menstrual health management: focus on super absorbent polymers
Authors: Mogale Refilwe , Schutte-Smith Marietjie , Erasmus Elizabeth , De Wet Kantinka , Visser Hendrik G. 
Published: April 2024

AbstractIn low- to middle-income communities, the lack of affordability of conventional sanitary products during menstrual cycles can cause psychological and health issues, ultimately affecting their quality of life. It is crucial to develop alternative products that are affordable and accessible to all while also promoting menstrual health and hygiene. Super absorbent polymers (SAPs) are a vital component in current disposable sanitary pads and nappies. However, these SAPs are often non-biodegradable and non-biocompatible. Therefore, the use of eco-friendly materials for the production of SAPs is gaining popularity in the hygiene industry, as it offers a means to reduce the carbon footprint and environmental impact associated with traditional SAPs made from non-renewable petroleum-based materials. SAPs made from polysaccharides often have naturally occurring antibacterial properties, making them appealing for commercial applications in sanitary products such as sanitary pads. In addition, the move toward reusable sanitary pads with antibacterial properties can significantly reduce waste generated by single-use products and prevent the growth of bacteria, improving the safety and hygiene of the product. Furthermore, computational modeling and artificial intelligence are now important tools in SAP synthesis, providing advantages such as predicting polymer properties, rationalizing synthesis pathways, and improving quality control. These tools can reduce synthesis costs by eliminating the need for trial-and-error approaches in polymer synthesis, ultimately promoting more affordable products for end users. Overall, these advancements in polymer synthesis and material design can help to create a more sustainable industry and promote menstrual hygiene and product accessibility to those who need it most.
Long term hydrogen storage properties of ZK60 Mg-alloy as processed by different methods of SPD
Authors: Cengeri P. , Kimoto Y. , Janoska M. , Abbasi Z. , Morisada Y. , Fujii H. , Enzinger N. , Sommitsch Ch. , Boczkal G. , Krexner G. , Zehetbauer M. J. , Schafler E. 
Published: April 2024

AbstractHydrogen storage characteristics is studied in the Mg-alloy ZK60 after processing by different SPD (Severe Plastic Deformation) methods such as High Pressure Torsion (HPT) and Friction Stir Processing (FSP), applying various deformation extents and rates. The capacity and kinetics of hydrogen storage was investigated and analysed, up to 100 storage cycles. While the degree of SPD deformation is less important for the storage capacity, the SPD processing method itself matters, yielding about ~ 30% more capacity in FSP than in HPT. As shown by DSC and XRD analyses, it is the density of SPD-induced vacancy agglomerates which is significantly higher in FSP than in HPT (~ 10–3 instead of ~ 10–4) because of the enhanced dislocation slip activity. Thanks to their stabilization through Mg(Zn,Zr) precipitates, the vacancy agglomerates survive numerous cycles of hydrogen storage in spite of the high storage temperature of 350 °C, and can act as thermally stable heterogeneous nuclei for the hydrogenation. This latter mechanism was found in all SPD methods applied irrespective of the deformation extent, on the basis of Johnson–Mehl–Avrami-Kolmogorov analysis providing the Avrami exponent n = 1, already from the second up to the highest hydrogen storage cycles.
Existential Well-Being in Nature: A Cross-Cultural and Descriptive Phenomenological Approach
Authors: Baklien Børge , Marthoenis Marthoenis , Thurston Miranda 
Published: April 2024

AbstractExploring the putative role of nature in human well-being has typically been operationalized and measured within a quantitative paradigm of research. However, such approaches are limited in the extent to which they can capture the full range of how natural experiences support well-being. The aim of the study was to explore personal experiences in nature and consider how they might be important to human health and well-being. Based on a descriptive phenomenological analysis of fifty descriptions of memorable moments in nature from England, Indonesia, and Norway, our findings illustrate a common structure presented under three themes: 1. serenity that gives rise to a growing awareness of how the body is stimulated by the senses; 2. admiration and appreciation for the sensation of beauty; 3. an emerging sense of togetherness and deep emotional bonding. The findings are discussed using the concepts of ecological time and the ecological body, which foreground being in nature as constituted as an interdependent and dynamic human process. We conclude by understanding well-being in terms of human responsiveness to their surroundings and thus as rooted in the human condition.