bluuebunny/crossref_metadata_2025_split huggingface dataset:
Axial compressive performance of low-carbon high-strength recycled aggregate concrete
Authors: Li Jian , Wang Tan , Hong Jian , Liu Sumei , Zheng Chao , Chi Yin 
Published: December 2024

AbstractThis paper introduces a novel material, low-carbon high-strength recycled aggregate concrete (LCHRAC), developed by activating ground granulated blast-furnace slag (GGBS) and silica fume (SF) in an alkaline environment and integrating recycled aggregate. To evaluate its mechanical properties, uniaxial compressive tests were performed, systematically analyzing the effects of recycled concrete aggregate (RCA) substitution ratios, as well as the characteristic parameters of steel and polypropylene(PP) fibers, on LCHRAC’s mechanical behavior. The results indicated that compressive strength shows a gradual decline as the RCA substitution ratio increases, with a moderate reduction of 7.1% up to 50% replacement, and a more significant drop, retaining only 68.6% at 100% replacement. In contrast, the peak strain increases linearly, showing a 29% improvement at full replacement, while the toughness index exhibits a consistent upward trend, increasing by approximately 123% at a 100% replacement rate. Based on experimental data, empirical models were developed to predict the influence of key control variables on the compressive strength, peak strain, elastic modulus, and the uniaxial compressive stress–strain behavior of LCHRAC. Additionally, advanced characterization techniques, including X-ray diffraction (XRD), thermogravimetric analysis (TGA/DTG), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS), were employed to elucidate the hydration mechanisms of the slag-silica fume composite system. These findings provide a comprehensive understanding of the mechanical performance and microstructural characteristics of LCHRAC, contributing to its potential application in sustainable construction practices.
Statistical significance of the influence of nano-TiO2 on WPC, PPC, and OPC cement mortars
Authors: Narreddy Avinash Kumar Reddy , B Sudheer Kumar , Panchangam Sri Chandana 
Published: December 2024

AbstractDurability of cement mortars and concrete is of significant importance in the field of concrete technology. Self-cleaning ability affects durability of cementitious compositions wherein Nano TiO2 (NT) is widely utilized in research worldwide as a popular photocatalyst. In this study, NT was applied to the cement mortars in three methods: intermixed (IM), fresh cast coat (FC), and hardened coat (HC) to three types of cements and the color removal efficiency of each combination is identified. ANOVA technique was used to analyze and understand the significance of the variance in color removal efficiency with respect to change in the dosage of NT, type of cement and NT application method. The variance analysis results suggest that White Portland Cement (WPC) exhibits increased variability in color removal efficiency, the Portland Pozzolana Cement (PPC) stabilizes at higher dosages, and Ordinary Portland Cement (OPC) demonstrates an initial increase followed by a decrease in variability. Across all the combinations, the NT dosage had a significant impact on the color removal efficiency, while the cement type did not significantly affect it. The type of NT application method significantly affected the color removal efficiency among all dosages and cement types, OPC having a greater effect than the other cement types.
On the development of a practical Bayesian optimization algorithm for expensive experiments and simulations with changing environmental conditions
Authors: Diessner Mike , Wilson Kevin J. , Whalley Richard D. 
Published: December 2024

Abstract
Experiments in engineering are typically conducted in controlled environments where parameters can be set to any desired value. This assumes that the same applies in a real-world setting, which is often incorrect as many experiments are influenced by uncontrollable environmental conditions such as temperature, humidity, and wind speed. When optimizing such experiments, the focus should be on finding optimal values conditionally on these uncontrollable variables. This article extends Bayesian optimization to the optimization of systems in changing environments that include controllable and uncontrollable parameters. The extension fits a global surrogate model over all controllable and environmental variables but optimizes only the controllable parameters conditional on measurements of the uncontrollable variables. The method is validated on two synthetic test functions, and the effects of the noise level, the number of environmental parameters, the parameter fluctuation, the variability of the uncontrollable parameters, and the effective domain size are investigated. ENVBO, the proposed algorithm from this investigation, is applied to a wind farm simulator with eight controllable and one environmental parameter. ENVBO finds solutions for the entire domain of the environmental variable that outperform results from optimization algorithms that only focus on a fixed environmental value in all but one case while using a fraction of their evaluation budget. This makes the proposed approach very sample-efficient and cost-effective. An off-the-shelf open-source version of ENVBO is available via the NUBO Python package.
Measuring design mindset: developing the Design Mindset Inventory through its relationship with ambiguity tolerance, self-efficacy and sensation-seeking
Authors: Lavrsen Jakob Clemen , Carbon Claus-Christian , Daalhuizen Jaap 
Published: December 2024

Abstract
Designers rely on many methods and strategies to create innovative designs. However, design research often overlooks the personality and attitudinal factors influencing method utility and effectiveness. This article defines and operationalizes the construct design mindset and introduces the Design Mindset Inventory (D-Mindset0.1), allowing us to measure and leverage statistical analyses to advance our understanding of its role in design. The inventory’s validity and reliability are evaluated by analyzing a large sample of engineering students (N = 473). Using factor analysis, we identified four underlying factors of D-Mindset0.1 related to the theoretical concepts: Conversation with the Situation, Iteration, Co-Evolution of Problem–Solution and Imagination. The latter part of the article finds statistical and theoretically meaningful relationships between design mindset and the three design-related constructs of sensation-seeking, self-efficacy and ambiguity tolerance. Ambiguity tolerance and self-efficacy emerge as positively correlated with design mindset. Sensation-seeking, which is only significantly correlated with subconstructs of D-Mindset0.1, is both negatively and positively correlated. These relationships lend validity D-Mindset0.1 and, by drawing on previously established relationships between the three personality traits and specific behaviors, facilitate further investigations of what its subconstructs capture.
Linear repetitivity beyond abelian groups
Authors: BECKUS SIEGFRIED , HARTNICK TOBIAS , POGORZELSKI FELIX 
Published: December 2024

Abstract
We show that linearly repetitive weighted Delone sets in groups of polynomial growth have a uniquely ergodic hull. This result applies in particular to the linearly repetitive weighted Delone sets in homogeneous Lie groups constructed in the companion paper [S. Beckus, T. Hartnick and F. Pogorzelski. Symbolic substitution beyond Abelian groups. Preprint, 2021, arXiv:2109.15210] using symbolic substitution methods. More generally, using the quasi-tiling method of Ornstein and Weiss, we establish unique ergodicity of hulls of weighted Delone sets in amenable unimodular locally compact second countable groups under a new repetitivity condition which we call tempered repetitivity. For this purpose, we establish a general sub-additive convergence theorem, which also has applications concerning the existence of Banach densities and uniform approximation of the spectral distribution function of finite hopping range operators on Cayley graphs.
Semiregularity as a consequence of Goodwillie’s theorem
Authors: Pridham J.P. 
Published: December 2024

Abstract
We realise Buchweitz and Flenner’s semiregularity map (and hence a fortiori Bloch’s semiregularity map) for a smooth variety X as the tangent of a generalised Abel–Jacobi map on the derived moduli stack of perfect complexes on X. The target of this map is an analogue of Deligne cohomology defined in terms of cyclic homology, and Goodwillie’s theorem on nilpotent ideals ensures that it has the desired tangent space (a truncated de Rham complex).
Immediate consequences are the semiregularity conjectures: that the semiregularity maps annihilate all obstructions, and that if X is deformed, semiregularity measures the failure of the Chern character to remain a Hodge class. This gives rise to reduced obstruction theories of the type featuring in the study of reduced Gromov–Witten and Pandharipande–Thomas invariants. We also give generalisations allowing X to be singular, and even a derived stack.
The Duties under the Doctrine of Superior Responsibility: What Can We Learn from Business Standards on Corporate Governance & Compliance?
Authors: Kvirikashvili Irakli 
Published: December 2024

Abstract
Given its role as a legal instrument not only to try superiors but also to prevent both them and their subordinates from committing grave international crimes, the correct understanding and proper application of the doctrine of superior responsibility is of paramount importance. This article aims to illuminate specific and some controversial aspects of the third element of the doctrine—the failure to adopt necessary and reasonable measures—and obtain a clearer and more comprehensive understanding on the superiors’ duties, its limits and main prerequisites under the doctrine. For this purpose, an interdisciplinary study was conducted to investigate whether basic principles and business aspects of corporate governance and compliance management may be applied for a better understanding and refinement of the doctrine. The underlying analysis in corporate governance and compliance covers American (U.S.), German, and international standards.
G. W. F. Hegel and Richard Wagner on the Death of Jesus Christ
Authors: Bell Richard H. 
Published: December 2024

Abstract
Hegel’s early work The Life of Jesus (Das Leben Jesu) of 1795 presents Jesus as a teacher of Kantian morality and ends abruptly with his death, anointing of his body, and burial, such that Jesus could appear to be merely a figure of the remote past. However, within a few years Hegel’s view of the death of Jesus was to change radically. Writing of his death in terms of the ‘death of God’, this individual is transformed into the universality of Spirit who dwells in the community. This paper examines how this fundamental change in Hegel’s thought came about, how Hegel’s mature understanding of the death of Jesus was appropriated by Richard Wagner in his proposed opera Jesus of Nazareth, and how this ‘death of God’ became the model for the death of Brünnhilde in the Ring cycle. For both Hegel and Wagner, the death of Christ can only be understood as a self-involving enterprise, the bringing together of the ‘objective’ and ‘subjective’. Further, Wagner largely shares Hegel’s immanent understanding of God, although under other influences he can affirm the idea of a transcendent God or a transcendent world.
High-power, ultra-low-noise cascaded diamond Raman lasers with spectrum compression
Authors: Chen Hui , Zhao Zhongan , Fan Wenqiang , Cai Yunpeng , Zhang Boyuan , Ding Jie , Qi Yaoyao , Yan Bingzheng , Wang Yulei , Lu Zhiwei , Bai Zhenxu 
Published: December 2024

Abstract
Stimulated Raman scattering is a third-order nonlinear optical effect that is not only effective for wavelength converting laser output, but also for single longitudinal-mode output due to the absence of spatial hole burning. Diamond is a prominent Raman-active medium that has significant potential for linewidth narrowing and wavelength converting lasers at high power levels due to its high thermal conductivity, long Raman frequency shift and wide spectral transmission range. In this work we utilize diamond in a resonantly mode-matched external cavity to achieve cascaded Raman conversion of a 1064 nm laser. By fine-tuning the length of this external cavity, we can obtain narrow linewidth emission at 1240 and 1485 nm. When operating at maximum power, the measured linewidths were more than twofold narrower than the linewidth of the fundamental field. In addition, the noise levels of the Stokes fields are lower than that of the fundamental field throughout the entire noise frequency range, and the intrinsic linewidth of the second Stokes field, which is expressed at the hertz level (~3.6 Hz), is decreased by approximately three orders of magnitude compared to that of the pump. This work represents the first measurement and analysis of the linewidth and noise characteristics of cascaded diamond Raman lasers and, significantly, offers a new means by which high-power, narrow linewidth laser output can be produced from wavelength-converted laser systems.
Humanities Decline in Darkness: How Humanities Research Funding Works
Authors: Newfield Christopher 
Published: December 2024

Abstract
Humanities research is underfunded, and the institutional sources and intellectual effects of this underfunding are insufficiently appreciated. The paper gives an example of the negative effects of a humanities discipline’s lack of research infrastructure on scholarly work. Section 2 describes the main categories through which research funds arrive on U.S. campuses. Section 3 describes the disproportions between Science & Engineering (S&E or “STEM”) funding and funding for social and cultural disciplines. Section 4 discussions the “institutional funds” that universities use to cover research costs from their own pockets. Section 5 shows that universities do not use their institutional funds to compensate for inequities in humanities funding but to perpetuate them. Section 6 claims that the current state of humanities funding abridges academic freedom and calls on humanities administrative personnel to lead a national campaign to rectify the current situation. Misconceptions about humanities research and its funding must be openly acknowledged and addressed so that it can come to have public effects that reflect its actual intellectual achievements.
Do school-based prevention programs impact co-occurring alcohol use and psychological distress during adolescence?
Authors: Halladay J. , Sunderland M. , Newton N. C. , Lynch S. J. , Chapman C. , Stapinski L. , Andrews J. L. , Birrell L. , Teesson M. , Slade T. 
Published: December 2024

AbstractBackgroundAdolescence is a critical period for preventing substance use and mental health concerns, often targeted through separate school-based programs. However, co-occurrence is common and is related to worse outcomes. This study explores prevention effects of leading school-based prevention programs on co-occurring alcohol use and psychological distress.MethodsData from two Australian cluster randomized trials involving 8576 students in 97 schools were harmonized for analysis. Students received either health education (control) or one of five prevention programs (e.g. Climate Schools, PreVenture) with assessments at baseline and 6, 12, 24, and 30 or 36 months (from ages ~13–16). Multilevel multinomial regressions were used to predict the relative risk ratios (RRs) of students reporting co-occurring early alcohol use and psychological distress, alcohol use only, distress only, or neither (reference) across programs.ResultsThe combined Climate Schools: Alcohol and Cannabis and Climate Schools: Mental Health courses (CSC) as well as the PreVenture program reduced the risk of adolescents reporting co-occurring alcohol use and psychological distress (36 months RRCSC = 0.37; RRPreVenture = 0.22). Other evaluated programs (excluding Climate Schools: Mental Health) only appeared effective for reducing the risk of alcohol use that occurred without distress.ConclusionsEvidence-based programs exist that reduce the risk of early alcohol use with and without co-occurring psychological distress, though preventing psychological distress alone requires further exploration. Prevention programs appear to have different effects depending on whether alcohol use and distress present on their own or together, thus suggesting the need for tailored prevention strategies.
Exchanged time in shared isolation: circulation of debt in Antarctica
Authors: Pottier Susie 
Published: December 2024

AbstractOn an Antarctic research station, money is rendered useless, and essential material goods are imported from participating countries. Recognizing time as a valuable resource and acknowledging the existence of gift-giving practices, this article investigates the economic exchanges among members of an Antarctic expedition. Drawing on a 15 month ethnographic study conducted at the French Dumont d'Urville Station from November 2019 to January 2021, I analyse the gift of time and the exchange of services among the 24 members of the 70th expedition to Adélie Land, isolated for 8 months by the winter pack ice. The study presents an anthropological perspective on overwinterers, a population predominantly studied within the field of psychology, and examines the extent to which mutual aid and volunteering, which are often overlooked, shape interpersonal relationships and group dynamics. By exploring the ethnography of Antarctic time in relation to work and delineating various categories of service exchanges, we gain insights into individual motivations, causes, consequences and sanctions within the broader context of social relationships. I propose the hypothesis that the perpetual cycle of indebtedness among overwinterers plays a significant role in maintaining the smooth operation of an Antarctic station and fostering social balance within a winter crew.
Depositional landforms and sediments in western Vestfold Hills, East Antarctica
Authors: O'Brien Philip E. , Gore Damian B. , Frankel Barbara 
Published: December 2024

AbstractAreas around western Vestfold Hills, East Antarctica, feature two sedimentary units in outcrops and excavations. Uppermost Dingle Sand is a gravelly, silty sand with boulders, which drapes bedrock ridges and more thickly covers valley floors and continues below modern sea level. Underlying Vestfold Beds are gravelly, muddy sands that are found in deeper valley fills. High-resolution aerial photography, topographic and bathymetric surveys, sediment grain size and field observations indicate that Dingle Sand formed as ablation till during the last deglaciation. Post-depositional modifications of Dingle Sand by decay of ground ice, mass movement, water, wind and marine transgression and regression have altered the texture, structure and fossil content in this region. Vestfold Beds are older, finer-grained tills. Indirect age estimation of Dingle Sand suggests deglaciation-age deposition with younger (Holocene) reworking in places, whereas Vestfold Beds may be as old as the Pliocene. These sediments post-date the early Pliocene Sørsdal Formation found on Marine Plain in southern Vestfold Hills. Identification of Dingle Sand as a separate, primarily glacial deposit helps clarify the glacial history of the Vestfold Hills. Evidence for marine modification of the deposits after deglaciation suggests that other regions might also have glacial deposits interpreted as marine because of post-depositional processes.
Social interactions and household fuel choice: evidence from rural China
Authors: Fang Hang , Jiang Xuechen , Chen Qianheng , Delgado Michael S. 
Published: December 2024

Abstract
We study household fuel choice in rural China through the lens of social interactions, deploying a structural discrete choice interaction model to explain peer-dependence in household fuel choice. The data comes from the China Family Panel Studies 2010–2020, and we use multiple strategies to examine the robustness of the social interaction effects. We find a significant endogenous social effect, meaning that whether a household chooses non-solid clean fuel for cooking is directly affected by the choice in cooking fuel made by its neighbors in the village. Households with lower non-farm income are more sensitive to the choices of others, and the fuel choices of households with a higher education and/or a higher income attracts more attention from others. Modern communication technologies facilitate information exchange among rural residents, thereby strengthening the endogenous social effect. We suggest that public policies can accelerate rural energy transition by stimulating positive social spillovers.
Making sense of comeback prime ministers
Authors: Grotz Florian , Helms Ludger 
Published: December 2024

Abstract
Comeback prime ministers (CBPMs), who return to office after a break, have been a notable, but conspicuously understudied, feature of several parliamentary democracies. This article provides the first ever comparative study of CBPMs. To make sense of the varying frequency of CBPMs in 18 established democracies from 1945 to 2024, we refer to competing party rationales of (re-)selecting prime ministers in different contexts, with the latter shaping the former. Apart from powerful presidents in semi-presidential regimes, the frequency of early replacements of prime ministers, the scope of alternations of the prime minister’s party, and the degree of intraparty personalization offer plausible explanations for the cross-national and temporal variation of prime-ministerial returns. While CBPMs have become less common since 1990, the remaining cases include some particularly powerful party leaders, underscoring the continuing importance of this neglected feature for understanding chief executive selection in established parliamentary democracies and beyond.
Twelve-month follow-up of a controlled trial of a brief behavioural intervention to reduce psychological distress in young adolescent Syrian refugees
Authors: Bryant Richard A. , Habashneh Rand , Ghatasheh Maha , Malik Aiysha , Aqel Ibrahim Said , Dawson Katie S. , Watts Sarah , Jordans Mark J. D. , Brown Felicity L. , van Ommeren Mark , Akhtar Aemal 
Published: December 2024

Abstract

Aims
The majority of studies of mental health interventions for young adolescents have only evaluated short-term benefits. This study evaluated the longer-term effectiveness of a non-specialist delivered group-based intervention (Early Adolescent Skills for Emotions; EASE) to improve young adolescents’ mental health.

Methods
In this single-blind, parallel, controlled trial, Syrian refugees aged 10-14 years in Jordan who screened positive for psychological distress were randomised to receive either EASE or enhanced usual care (EUC). Primary outcomes were scores on the Paediatric Symptom Checklist (PSC) assessed at Week 0, 8-weeks, 3-months, and 12 months after treatment. Secondary outcomes were disability, posttraumatic stress, school belongingness, wellbeing, and caregivers’ reports of distress, parenting behaviour, and their perceived children’s mental health.

Results
Between June, 2019 and January, 2020, 185 adolescents were assigned to EASE and 286 to EUC, and 149 (80.5%) and 225 (78.7%) were retained at 12 months, respectively. At 12 months there were no significant differences between treatment conditions, except that EASE was associated with less reduction in depression (estimated mean difference -1.6, 95% CI –3.2 to -0.1; p=.03; effect size, -0.3), and a greater sense of school belonging (estimated mean difference -0.3, 95% CI –5.7 to -0.2; p=.03; effect size, 5.0).

Conclusions
Although EASE led to significant reductions in internalising problems, caregiver distress, and harsh disciplinary parenting at 3-months, these improvements were not maintained at 12 months relative to EUC. Scalable psychological interventions for young adolescents need to consider their ongoing mental health needs. Prospectively registered: ACTRN12619000341123.