bluuebunny/crossref_metadata_2025_split huggingface dataset:
On optimal lockdown policies while facing socioeconomic costs
Authors: Gubar Elena , Policardo Laura , Sánchez Carrera Edgar J. , Taynitskiy Vladislav 
Published: June 2023

AbstractThe paper analyzes the optimal lockdown policy using the SQAIRD model over a network with three population groups (young, adult, and old). We show that different lockdown policies may be justified by different socioeconomic structures (objective cost functions that are either convex or concave). We also show that a lockdown policy is always better than a laissez-faire policy, and a targeted policy specific to each group outperforms a uniform policy. In our benchmark example, we consider the case of Italy. Our simulations show that: (a) a lockdown policy is always better than the laissez-faire policy because it limits the costs generated by the pandemic in an uncontrolled situation; (b) a group-specific targeted lockout policy is more effective than a uniform policy to the extent that the groups differ. The latter is a less expensive targeted policy (as it optimally minimizes direct, indirect, and vaccination costs), and it is equally effective in controlling the pandemic. One finding of particular interest is that the optimal lockdown rate should be higher for the young and elderly than for adults. This is motivated by the fact that younger individuals are more likely to spread the virus in question asymptomatically.
Spatial patterns and drivers of benthic community structure on the northern Adriatic biogenic reefs
Authors: Gianni Fabrizio , Turicchia Eva , Abbiati Marco , Calcinai Barbara , Caragnano Annalisa , Ciriaco Saul , Costantini Federica , Kaleb Sara , Piazzi Luigi , Puce Stefania , Querin Stefano , Rindi Fabio , Solidoro Cosimo , Bandelj Vinko , Ponti Massimo , Falace Annalisa 
Published: June 2023

AbstractThe northern Adriatic Sea (NAS) hosts numerous biogenic subtidal reefs that are considered biodiversity hotspots. Several studies have already investigated the origin and biodiversity of these reefs. However, many of them are still unexplored and further knowledge is needed for their conservation. Here, the spatial variability, epibenthic community structure, and environmental features that characterize these habitats were investigated. Fifteen randomly selected reefs were sampled between 2013 and 2017, including some remote sites that have never been studied before. A fuzzy k-means clustering method and redundancy analysis were used to find similarities among sites in terms of epibenthic assemblages and to model relationships with abiotic variables. The results showed that these reefs are highly heterogeneous in terms of species composition and geomorphological features. The results were also consistent with previous studies and highlighted three main types of benthic assemblages defined by the dominance of different organisms, mainly reflecting the coastal-offshore gradient: nearshore reefs, generally dominated by stress-tolerant species; reefs at a middle distance from the coast, characterized by sponges, non-calcareous encrusting algae and ascidians; offshore reefs, dominated by reef builders. However, distance from the coast was not the only factor affecting species distribution, as other local factors and environmental characteristics also played a role. This kind of biogenic reefs in temperate seas are still poorly known. The present work contributed to shed further light on these habitats, by complementing the results of previous studies on their natural diversity, highlighting the specificity of the epibenthic communities of NAS reefs and the need to improve current, still inadequate, conservation measures.
Expert Perceptions on Anti-bribery and Corruption Policies in Sports Governing Bodies: Implications for Ethical Climate Theory
Authors: Philippou Christina 
Published: June 2023

AbstractAnti-bribery and corruption in sport governing bodies is a little explored area in academic literature. This paper addresses the gap in the literature through expert perceptions on the current state of anti-bribery and corruption policies in international and national sport governing bodies as seen through an ethical climate theory lens. Thus, this paper addresses the question of how and why enhancing anti-bribery and corruption in sport internal controls can mitigate financial corruption and improve ethical climates. Semi-structured interviews were undertaken with 17 forensic accountants and anticorruption experts to garner their opinion on strengths and weaknesses of current policies in sport governing bodies and ascertain the link between anticorruption, accounting controls, and ethical climates. The transcripts were analysed using thematic analysis and the results showed a consistency of opinion with regards to the policy improvements required for a robust anti-bribery and corruption programme within sport governing bodies, with multiple implications for ethical organisational climates.
Mechanisms and prognostic impact of myocardial ischaemia in hypertrophic cardiomyopathy
Authors: Coleman James A. , Ashkir Zakariye , Raman Betty , Bueno-Orovio Alfonso 
Published: June 2023

AbstractDespite the progress made in risk stratification, sudden cardiac death and heart failure remain dreaded complications for hypertrophic cardiomyopathy (HCM) patients. Myocardial ischaemia is widely acknowledged as a contributor to cardiovascular events, but the assessment of ischaemia is not yet included in HCM clinical guidelines. This review aims to evaluate the HCM-specific pro-ischaemic mechanisms and the potential prognostic value of imaging for myocardial ischaemia in HCM. A literature review was performed using PubMed to identify studies with non-invasive imaging of ischaemia (cardiovascular magnetic resonance, echocardiography, and nuclear imaging) in HCM, prioritising studies published after the last major review in 2009. Other studies, including invasive ischaemia assessment and post-mortem histology, were also considered for mechanistic or prognostic relevance. Pro-ischaemic mechanisms in HCM reviewed included the effects of sarcomeric mutations, microvascular remodelling, hypertrophy, extravascular compressive forces and left ventricular outflow tract obstruction. The relationship between ischaemia and fibrosis was re-appraised by considering segment-wise analyses in multimodal imaging studies. The prognostic significance of myocardial ischaemia in HCM was evaluated using longitudinal studies with composite endpoints, and reports of ischaemia-arrhythmia associations were further considered. The high prevalence of ischaemia in HCM is explained by several micro- and macrostructural pathological features, alongside mutation-associated energetic impairment. Ischaemia on imaging identifies a subgroup of HCM patients at higher risk of adverse cardiovascular outcomes. Ischaemic HCM phenotypes are a high-risk subgroup associated with more advanced left ventricular remodelling, but further studies are required to evaluate the independent prognostic value of non-invasive imaging for ischaemia.
Collaboration between Mathematicians and Mathematics Educators: dialogical inquiry as a methodological tool in Mathematics Education research
Authors: Hernandez-Martinez Paul , Rogovchenko Svitlana , Rogovchenko Yuriy , Treffert-Thomas Stephanie 
Published: June 2023

AbstractCollaboration between Mathematicians and Mathematics Educators is crucial in advancing knowledge on the teaching and learning of Mathematics, particularly in advanced Mathematics pedagogy. However, there is a need for the type of collaborations where Mathematicians and Mathematics Educators can find common ground, and the synergy of their expertise results in new, hybrid meanings and understandings that can benefit practice. This paper aims to help researchers from these communities come together by presenting a novel methodology for collaborative inquiry and qualitative data analysis—dialogical inquiry—based on Mikhail Bakhtin’s theory of dialogism. In this framework, “truth” is conceived as never finalised but always coevolving through dialogue that involves participants with different “voices” and “languages”. We describe the three principles that underpin dialogical inquiry: motivation, power balance and a process for solving disagreements. These three principles interact together to create a space where critically productive dialogue allows for meanings to coevolve and new, hybrid understandings to emerge. We illustrate our operationalisation of these principles (i.e., the methods of dialogical inquiry) in two areas: understanding solutions to linear ordinary differential equations and making meaning of the Bakhtinian concept of superaddressee. We reflect on our use of this methodology in Mathematics Education research and invite the readers to create their own dialogic spaces of collaboration.
The Selah Pilot Study of Spiritual, Mindfulness, and Stress Inoculation Practices on Stress-Related Outcomes Among United Methodist Clergy in the United States
Authors: Proeschold-Bell Rae Jean , Eagle David E. , Tice Logan C. , Yao Jia , Rash Joshua A. , Choi Jessica Y. , Stringfield Beth , Labrecque Sofia M. 
Published: June 2023

AbstractThe job–demand–control–support model indicates that clergy are at high risk for chronic stress and adverse health outcomes. A multi-group pre-test–post-test design was used to evaluate the feasibility, acceptability, and range of outcome effect sizes for four potentially stress-reducing interventions: stress inoculation training, mindfulness-based stress reduction (MBSR), the Daily Examen, and Centering Prayer. All United Methodist clergy in North Carolina were eligible and recruited via email to attend their preferred intervention. Surveys at 0, 3, and 12 weeks assessed symptoms of stress, anxiety, and perceived stress reactivity. Heart rate variability (HRV) was assessed at baseline and 12 weeks using 24 h ambulatory heart rate monitoring data. A subset of participants completed in-depth interviews and reported skill practice using daily text messages. Standardized mean differences with 95% and 75% confidence intervals were calculated for the change observed in each intervention from baseline to 3 and 12 weeks post-baseline to determine the range of effect sizes likely to be observed in a definitive trial. 71 clergy participated in an intervention. The daily percentage of participants engaging in stress management practices ranged from 47% (MBSR) to 69% (Examen). Results suggest that participation in Daily Examen, stress inoculation, or MBSR interventions could plausibly result in improvement in stress and anxiety at 12 weeks with small-to-large effect sizes. Small effect sizes on change in HRV were plausible for MBSR and Centering Prayer from baseline to 12 weeks. All four interventions were feasible and acceptable, although Centering Prayer had lower enrollment and mixed results.
Fidelity of D.A.R.E. Officers’ Delivery of “keepin’ it REAL” in Elementary & Middle School
Authors: Beamon Emily R. , Henson Robert A. , Kelly Samantha E. , Hansen William B. , Wyrick David L. 
Published: June 2023

AbstractThe goal of the current study is to examine the degree to which measures of quality of implementation and student engagement moderate pretest–posttest changes in mediating variables that are targeted by DARE “keepin’ it REAL.” DARE officers (10 elementary school, five middle school) taught DARE “keepin’ it REAL lessons to 1,017 elementary students (480 boys and 534 girls) and 435 middle school students (217 boys and 215 girls). We examined teachers’ and students’ ratings of elementary and middle schools in response to DARE officers’ delivery of the program. HLM analyses revealed that students’ engagement was a significant and meaningful predictor of changes in targeted mediators. Teachers’ ratings of student responsiveness added little in terms of understanding these outcomes with main effects observed only for students’ ability to respond to bulling and students’ estimates of peer drug use. Teachers’ ratings of the quality of officer implementation, on the other hand, did add to understanding students’ outcomes. Effects were seen for three (peer norms about drug use, decision-making (DM) skills, intentions to avoid drug use) out of six outcome variables and suggest a stronger positive effect for elementary versus middle school students. At least for these three outcomes, understanding quality of implementation added to our ability to interpret results. Specifically, in addition to students’ engagement, quality of implementation (which varied by grade) contributed to achieving positive changes in students’ outcomes.
Modality, expected utility, and hypothesis testing
Authors: Chung WooJin , Mascarenhas Salvador 
Published: June 2023

AbstractWe introduce an expected-value theory of linguistic modality that makes reference to expected utility and a likelihood-based confirmation measure for deontics and epistemics, respectively. The account is a probabilistic semantics for deontics and epistemics, yet it proposes that deontics and epistemics share a common core modal semantics, as in traditional possible-worlds analysis of modality. We argue that this account is not only theoretically advantageous, but also has far-reaching empirical consequences. In particular, we predict modal versions of reasoning fallacies from the heuristics and biases literature. Additionally, we derive the modal semantics in an entirely transparent manner, as it is based on the compositional semantics of Korean modal expressions that are morphosyntactically decomposed into a conditional and an evaluative predicate.
Clastic-volcaniclastic Rocks in Papaghni Sub-basin: Implications for Syn-sedimentary Felsic Volcanism during the Deposition of Paleoproterozoic Vempalle Carbonate Sequence, Cuddapah Basin, India
Authors: Sai V. V. Sesha , Reddy N. Ramakrishna , Tripathy Vikash , Bhattacharjee Santanu , Narahari S.T. , Krishna K. Sai 
Published: June 2023

Abstract
Based on detailed field, petrographic, mineral chemistry and geochemical studies, succinct details on the clastic - volcaniclastic sequence recorded within the dolomite horizon in Paleoproterozoic Vempalle Formation, Cuddapah basin, India are presented. The clastic rocks represented by rudaceous-arenaceous sequence and the volcaniclastic rock represented by an intervening tuffaceous horizon are noticed in the Vempalle dolomite near Tummalapalle area, in southwestern part of the Cuddapah basin. The conglomerate is matrix supported with dominantly chert clasts and the arenaceous unit is represented by fine grained quartz arenite. The tuffaceous unit is finely laminated exhibiting typical; clast matrix texture characteristic of fine grained pyroclastic rocks. Zircon, apatite, rutile and monazite are the accessory phases in the tuff. Geochemically, the felsic tuff is rhyolitic, peraluminous and shows relative enrichment of LREE. The chemical composition of the feldspar falls close to the K-feldspar end member in the Or-Ab-An plot. The clastic - volcaniclastic sequence in the Vempalle carbonate sequence indicate a localised break in carbonate precipitation accompanied by syn-sedimentary felsic volcanism during the evolution of Paleoproterozoic segment in the Cuddapah basin, India.
Sedimentary Thickness and Upper Crustal Structure of the North Cambay Rift, India Deduced from Gravity Data: New Evidence of Pre-trappean Sediments
Authors: Chouhan Avinash Kumar , Choudhury Pallabee , Pal Sanjit Kumar 
Published: June 2023

Abstract
A gravity survey was carried out to estimate the sedimentary thickness and to map upper crustal geometry over the northern part of the Cambay rift. Structural lineaments delineated using the total horizontal gradient of the Bouguer anomaly indicate a major lineament trend in the NW-SE direction. Results of the density modelling using residual Bouguer anomaly reveal the average thickness of the Quaternary and Tertiary sediments to be between 0.5 and 6 km, while the Deccan trap thickness varies between 0.5 and 3 km. It is seen that the Mesozoic sediment (maximum thickness ~0.6 km) is sandwiched between the Deccan trap and granitic basement, which indicates the possible existence of a rift in the late Jurassic-early Cretaceous. Based on the residual Bouguer and density modelling results, the spatial locations of the NE-SW trending Unhawa ridge and the N-S trending Mehsana uplift are provided, which are believed to be the remnant rock of the Proterozoic age. A high-density body, interpreted as a magmatic underplating layer, is also found in the lower part of the middle crust along the central part of the rift, which continues in the lower crust. The magmatic underplating layer is formed during the Reunion hotspot and lithospheric interaction in the Cretaceous period.
Development of Performance Prediction Model for TBM Using Rock Mass Properties
Authors: Kullarkar Shubham D. , Thote N. R. 
Published: June 2023

Abstract
Tunnelling projects carried out by Tunnel Boring Machine (TBM) present several problems, the most significant of which is predicting machine performance. The improper prediction may result in the rescheduling of the entire project and also lead to high cost overrun. An established rock mass classification system like rock mass rating (RMR) is commonly employed for the development of empirical equations to predict the performance of TBM. However, such TBM performance prediction models have a limited scope of success due to the weights assigned to the input parameters. This issue can be overcome by performing simple, multiple linear, and multiple non-linear regression analyses for determining the most influential input parameters or modifying the weights of the RMR system such that their role in the performance of the TBM is better represented. In this research, an attempt is made to define the influence of different rock mass properties on the performance of the TBM, and a novel model is generated using simple, multiple linear, and multiple non-linear regression analyses. This model uses intact rock mass properties i.e., uniaxial compressive strength (UCS), and fractured rock mass properties like joint spacing (Js), rock quality designation (RQD), and alpha (α) for performance prediction of TBM. This research comprises 119 datasets from three different TBM tunnels sites in Iran for statistical regression analysis. The results showed that the utilized rock mass properties have a great influence on TBM performance and concluded that the TBM performance can be estimated using the newly developed equation.
Revolutionizing Maize Farming with Potassium Silicate Foliar Spray and Water Management Techniques
Authors: Elmahdy Ahmed M. , Ahmed Yasser M. , Bakr Abeer A. A. , Abdallah Ahmed M. , Abdelghany Ahmed M. , El-Sorady Gawhara A. , Elbana Aly A.A. , Lamlom Sobhi F. 
Published: June 2023

AbstractBy integrating various irrigation and agriculture management techniques, it is possible to considerably improve water productivity. In order to examine the impact of irrigation scheduling (1.0 and 1.2 pan evaporation coefficient), planting method (ridge and raised bed), and potassium silicate foliar application (0 ppm and 100 ppm) on maize (Zea mays L) growth, yield, and water-related factors, a two-season field experiment was conducted in a hot-dry climate region of southern Egypt during 2017 and 2018. The results showed that the seasonal irrigation requirement and consumptive use were higher at 1.2 than the 1.0 pan evaporation coefficient, irrespective of the planting methods. Raised bed planting method saved about 19% of applied water (two seasons average) compared to the ridge planting method. Plants treated with potassium silicates attained higher yields compared to the control, irrespective of the irrigation level and planting method. Moreover, irrigation at 1.2 pan evaporation resulted in the lowest daily ETc values, i.e., 3.15, 6.0, 6.7, and 2.8 mm for plant growth stages, i.e., ini, dev, mid and late. This resulted in the lowest Kc values (0.47, 0.91, 1.16, and 0.61) at different plant growth stages (ini, dev, mid and late). Based on the study findings, it is recommended to use a deficit irrigation of 0.15% based on accumulated pan evaporation values of 1.2, coupled with raised bed planting method and the application of 100 ppm potassium silicates, for optimal maize water productivity and net return.
Implications of chemical agents and nanofluids coupled with carbon dioxide to improve oil recovery factor
Authors: Luo Zixuan , Zhang Xiangchun , Rizwan Ali , Shafieezadeh M. Mehdi 
Published: June 2023

AbstractIn this study, we experimentally investigated the effects of chemically enhanced oil recovery methods containing hydrolyzed polyacrylamide (HPAM), surfactant–hydrolyzed polyacrylamide (SHPAM), surfactant nanofluids (SNF), that is, coupled with carbon dioxide (CO2) and water chase injection to measure enhanced oil recovery methods in a sandstone reservoir. To proceed with the experiments, we performed four flooding tests at the simulated reservoir temperature of 70 °C. The sand packs were saturated with oil to establish the irreducible water saturation (Swr). Then, the fluid flow in sand packs remained undistributed for about 5 days to obtain the 1.5 pore volume (PV). We observed that the pressure drop had small fluctuations when there was waterflooding (until 1.5 PV), and after injecting the chemical agents, the pressure drop had a sharp rise. It is indicated that the chemical solution has implemented higher pressure drops (significant energy efficiency) to displace the oil instead of water. The maximum oil recovery factor was about 53% and 59% when HPAM and SHPAM solution displaced oil after waterflooding, respectively; however, it is observed that water chase flooding recovered about 8% and 14% of remaining oil in place while CO2 has increased only 3% and 5%, respectively. SNF solution can provide more oil recovery factors. It is about 72% (SNF with 0.5 wt%) and 67% (SNF with 1 wt%). We observed that water chase flooding recovered about 20% of oil in place while CO2 increased by only 8%. It was concluded that the SNF solution with 0.5 wt% tends to adhere to the water–CO2 and causes to improve oil recovery factor after SNF injection. Therefore, SNF is the optimum enhanced oil recovery method among other chemical agents. On the other hand, with the decrease in CO2 flow rate and increase in silica nanoparticles slug size, pressure drop has started to decrease in higher pore volume injections, indicating that larger volumes of CO2 can be stored in sand packs. However, by increasing the CO2 flow rate and decreasing silica nanoparticles slug size, CO2 can escape easily from the sand pack.
Overview of emerging hybrid and composite materials for space applications
Authors: Ince J. C. , Peerzada M. , Mathews L. D. , Pai A. R. , Al-qatatsheh A. , Abbasi S. , Yin Y. , Hameed N. , Duffy A. R. , Lau A. K. , Salim N. V. 
Published: June 2023

AbstractSpace exploration is one of humanity’s most challenging and costly activities. Nevertheless, we continuously strive to venture further and more frequently into space. It is vital to make every effort to minimise and mitigate the risks to astronaut safety, expand the long-term operation of technologies in space and improve the overall feasibility of space exploration—this calls for an assessment of recent advances in materials with applications in space. This review focuses on state-of-the-art materials that address challenges, threats and risks experienced during space exploration. Said challenges considered in this review include the danger of micro-meteorites, fire in space, space dust, temperature extremes, electromagnetic interference (EMI) and the cost associated with space travel. The materials discussed include self-healing polymers, fire and thermally resistant materials, materials for thermal management, self-cleaning materials, EMI shielding materials and multifunctional carbon fibre composites. Through this catalogue, we seek to inform and suggest the future direction of advancing space exploration by selecting innovative materials.Graphical AbstractNext-generation materials with multifunctionality, durability and light weight and able to withstand the extreme conditions for advanced space applications