bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improved stereo perception in coronary angiography using the X-ray tube as the viewpoint and validation with 3D printed models
Authors: Chen Miao , Zhang Tianpeng 
Published: July 2023

AbstractCoronary angiography (CAG) provides two-dimensional images, but a clinician who is experienced in percutaneous coronary interventions can use information from these images to interpret spatial depth and infer the three-dimensional (3D) locations of vessels. We hypothesized that CAG results were equivalent to the mirror image of a coronary artery perspective projection, and a stereo perception could be easily established when the viewpoint of the angiogram was the X-ray tube instead of the detector. To eliminate the influence of heartbeat and respiration, a 3D-printed a coronary artery model was constructed for analysis. The effects of gantry movements during digital subtraction angiography (DSA) on the image were used to identify factors that affected DSA image transformation. Then, based on these factors, DSA imaging was simulated using UG NX software with three methods: (i) a perspective projection with the detector as the viewpoint; (ii) a parallel projection; and (iii) a mirror image of the perspective projection with the X-ray tube as the viewpoint. Finally, the resulting 3D images were compared with the DSA image. Our mirror image of the coronary artery perspective projection that used the X-ray tube as the viewpoint fused precisely with the CAG results and provided exact simulations of all the effects of DSA gantry movements on the DSA image. CAG results were equivalent to the mirror image of coronary artery perspective projection, and the stereo perception was easily established using the X-ray tube as the viewpoint.
Social reproduction and the family: contradictions of childcare and eldercare in Germany
Authors: Weiss Hadas 
Published: July 2023

AbstractAt the heart of capitalism is a contradiction between capital’s need for value-producing labor, including the commodification of care work and care products, and capitalists’ pursuit of profit at all costs, including the value of wages and the life and wellbeing of workers. The family is entangled in this contradiction insofar as its members, and particularly its female members, are encouraged to care for their children and for their dependent parents without (adequate) compensation out of love or duty, at the same time as they are immersed in and held up to standards of autonomy and self-care. In this article, I unpack this entanglement with respect to men and women’s care for their children and for their dependent parents in Germany. I argue that family members live out a structural contradiction in the reproduction of capitalism as a personal and family conflict and assume its fallouts as their personal failures. This makes the family relationships that center on care singularly excessive and family members prone to questioning their commitment, sensibility, and competence as mothers and fathers and as daughters and sons.
Early Childhood Practitioners’ Perceptions of Children’s Risky Play Based on Childhood and Present Practice: A Questionnaire Survey in Japan
Authors: Tsujitani Machiko 
Published: July 2023

AbstractSimilar to countries in Europe and the Americas, risky play is a feature in Japanese early childhood education and care. This study investigated the perceptions and practices of Japanese early childhood education specialists with respect to risky play in order to ascertain whether their childhood experiences influenced their attitudes toward preschoolers’ risky play. Data were collected from a survey, and findings showed that childhood experiences influenced respondents’ practices regarding restricting risky or unsafe play. Among the various types of risky play, play at great heights received the most references regarding both childhood play and current activity restrictions. The research concluded that 1) regular and ongoing discussions among practitioners are crucial given their diverse experiences and the disparity of perceived risks between players and supervisors; 2) policy is required to provide children with rich experiences of risky play because of insufficient opportunities in their early childhood environments. Overall, the research highlights the importance of cultural and environmental backgrounds in practitioners’ perception of risky play.
Undergraduate students’ attitudes towards mathematical proving in an introduction to proof course
Authors: Häsä Jokke , Westlin Lín , Rämö Johanna 
Published: July 2023

Abstract
In this study, we investigated undergraduate mathematics students’ (N = 267) attitudes towards proving. The students were taking an introduction-to-proof type course that was situated at the beginning of the mathematics curriculum and lasted for one term. Four attitude variables were measured at the beginning and at the end of the course with a new self-report instrument: self-efficacy, anxiety, appreciation and motivation. The instrument was based on two existing instruments on mathematics attitudes and proof-related self-efficacy. We studied how these four attitude variables were related to the students’ prior skills and their gender at the beginning of the course, how the attitude variables changed during the course, and how they affected the students’ performance in the final course project. Our results indicate that students’ prior performance is linked to their proof-related self-efficacy, anxiety and motivation at the beginning of the course. Female students exhibited lower efficacy and motivation levels than male students. During the focus course, students’ self-efficacy increased and anxiety decreased. The gender gaps in self-efficacy and motivation persisted throughout the course. In addition, high motivation in the beginning of the course predicted good performance in the final project. Based on our results, we conclude that an introductory course on proving can enhance students’ attitudes, and we suggest that these attitudes are taken into account in teaching as they can affect students’ performance. Finally, we urge researchers and professionals to earnestly consider ways to mitigate gender differences in mathematics.
Parameterizing Lognormal state space models using moment matching
Authors: Smith John W. , Thomas R. Quinn , Johnson Leah R. 
Published: July 2023

AbstractIn ecology, it is common for processes to be bounded based on physical constraints of the system. One common example is the positivity constraint, which applies to phenomena such as duration times, population sizes, and total stock of a system’s commodity. In this paper, we propose a novel method for parameterizing Lognormal state space models using an approach based on moment matching. Our method enforces the positivity constraint, allows for arbitrary mean evolution and variance structure, and has a closed-form Markov transition density which allows for more flexibility in fitting techniques. We discuss two existing Lognormal state space models and examine how they differ from the method presented here. We use 180 synthetic datasets to compare the forecasting performance under model misspecification and assess the estimation of precision parameters between our method and existing methods. We find that our models perform well under misspecification, and that fixing the observation variance both helps to improve estimation of the process variance and improves forecast performance. To test our method on a difficult problem, we compare the predictive performance of two Lognormal state space models in predicting the Leaf Area Index over a 151 day horizon by using a process-based ecosystem model to describe the temporal dynamics. We find that our moment matching model performs better than its competitor, and is better suited for intermediate predictive horizons. Overall, our study helps to inform practitioners about the importance of incorporating sensible dynamics when using models of complex systems to predict out-of-sample.
Stories of a water-table: anomalous depressions, aquitard breaches and seasonal implications, Shelby County, Tennessee, USA
Authors: Lozano-Medina Daniela , Waldron Brian , Schoefernacker Scott , Antipova Anzhelika , Villalpando-Vizcaino Rodrigo 
Published: July 2023

AbstractAn extensive water level survey of the water-table aquifer (i.e., shallow aquifer) within Shelby County, Tennessee, was conducted in the dry (fall 2020) and wet (spring 2021) seasons. Water-table surfaces were generated using cokriging to observe seasonal differences to identify anomalous water-table depressions, indicative of an underlying aquitard breach. Seasonal differences were attributed to non-coincident control and timing between the surveys and when optimum dry (fall) and wet (spring) conditions existed, as observed through comparisons with continuous historical water levels from 12 shallow monitoring wells. Additionally, data from fall 2020 were compared to previous studies in 2005 and 2015 to determine decadal changes in levels and shape of the water-table surface which were mostly attributed to changes in data control and potential climate variations. A prediction error map was generated from the 2020 dataset to identify areas of the county with high-prediction error (>7.0 m) to offer guidance on where future well control would be optimal.
Neurotoxicity of microplastics: a CiteSpace-based review and emerging trends study
Authors: Ye Zeyan , Mai Tingyu , Cheng Yuqian , Zhang Xiashuang , Liu Zhe , Zhang Zhiyong , Li You 
Published: July 2023

AbstractMicroplastics, as a currently emerging pollutant, are gaining increasing attention from researchers in various fields. The purpose of this study is to summarize research development on microplastics in the field of neurotoxicity using bibliometric tools and visualization methods and to identify current research hotspots. The Web of Science Core Collection (WoSCC) was searched under the topics of “microplastics” and “neurotoxicity.” A total of 33 published articles were obtained by exclusion and analyzed using CiteSpace (V6.1.R2). It was found that microplastic neurotoxicity research is currently on the rise, with the most research results being published in China, the most collaboration occurring between Italy and other countries, and the least collaboration occurring between authors. The focus and hotspots of future research on the neurotoxicity of microplastics may revolve around “accumulation” and “integrated biomarker response.” These findings demonstrate the trends and frontiers in the field of microplastic neurotoxicity research and provide valuable information for subsequent research directions and potential collaborations.
Spatiotemporal environmental monitoring of the karst-related Almyros Wetland (Heraklion, Crete, Greece, Eastern Mediterranean)
Authors: Kokinou E. , Zacharioudaki D.E. , Kokolakis S. , Kotti M. , Chatzidavid D. , Karagiannidou M. , Fanouraki E. , Kontaxakis E. 
Published: July 2023

AbstractWetlands are of great importance for providing the appropriate conditions for the diversity of species and inhabitants living in these ecosystems and for a wide range of public goods and services (fresh water, air filtering, recreational and tourism opportunities). However, despite their importance, wetlands are continuously degraded due to various human activities at an alarming rate worldwide. In the context of this study and considering the rational management of wetlands and the inevitable impact of climate change, a wetland, spatiotemporal monitoring system is proposed, implemented in the karst wetland of Almyros Stream (Heraklion, Crete, Greece). The implementation of this system is based on robust techniques from the allied fields of chemistry, earth and ecology assisted by GIS techniques. Our results indicate that this Mediterranean karst wetland of great ecological importance is under pressure because of pollution, climate change and land change. This argument is supported by (a) the high concentrations of water photosynthetic pigments and nutrients at certain times of the year, both provided by chemical analysis and partially verified by geophysical monitoring (spectral induced polarization) and (b) the high values of soil magnetic susceptibility at sites close to human infrastructures that is an indicator of heavy metals concentrations.
Metz’s Relational Moral Theory and Environmental Ethics
Authors: Moellendorf Darrel 
Published: July 2023

Abstract
Metz’s contribution to environmental ethics is a novel theory of moral status, which he argues explains the intuition that although we have direct moral duties to some nonhuman animals, our duties to fellow human beings are always weightier. The theory takes the moral status of an individual to depend on it being the subject and object of friendly relations with human. This paper argues that the account of moral status explains the intuition about the existence and relative weight of duties to nonhuman animals only if evidence of human-nonhuman animal cooperation is ignored. The paper argues additionally that a focus on the moral status of individual nonhuman animals offers no insight into one the most pressing environmental problems of our time, the threat of mass species extinction. Finally, the duties that would seem to follow from the account of moral status are contrary a traditional environmental concern of nature preservation.
Comparison of visual quality after SMILE correction of low-to-moderate myopia in different optical zones
Authors: Zhou Cong , Li Ying , Wang Yinghan , Fan Qiuyang , Dai Lili 
Published: July 2023

Abstract
Objective
To compare the effects of different optical zones for small-incision lenticule extraction (SMILE) on postoperative visual quality in low-to-moderate myopia.

Methods
This retrospective case–control study involved patients who underwent SMILE using two optical-zone diameters: 6.5 mm (50 patients, 100 eyes) and 6.8 mm (50 patients, 100 eyes). Uncorrected visual acuity (UCVA), best corrected visual acuity, spherical equivalent (SE), corneal higher-order aberrations (HOAs), and subjective visual-quality questionnaire scores were assessed.

Results
Postoperatively, UCVA and SE did not differ between the two groups (P > 0.05). In both groups, corneal HOAs, spherical aberration, and coma significantly increased at 1 and 3 months postoperatively (P < 0.05), while trefoil was unchanged after surgery (P > 0.05). Corneal HOAs, spherical aberration, and coma significantly differed between the groups at 1 and 3 months (P < 0.05), while trefoil did not (P > 0.05). Visual-quality scores were higher in the 6.8 mm group than in the 6.5 mm group at 1 month (P = 0.058), but not at 3 months (P > 0.05). In both groups, subjective scores significantly decreased at 1 month (P < 0.05) and gradually returned to the preoperative level at 3 months (P > 0.05). The subjective visual-quality scores were negatively and positively correlated with pupillary and optical-zone diameter, respectively (P < 0.05 for both). Objective visual-quality indicators (HOAs, spherical aberration, and coma) were negatively correlated with optical-zone diameter (P < 0.05) but not pupillary diameter (P > 0.05).

Conclusion
SMILE in different optical zones effectively corrected low-to-moderate myopia. The larger the optical-zone diameter, the better the early postoperative visual quality.
Migration and public finances in the EU
Authors: Fiorio Carlo V. , Frattini Tommaso , Riganti Andrea , Christl Michael 
Published: July 2023

AbstractWe provide novel and comprehensive evidence on the net fiscal contributions of natives and migrants to the governmental budgets of EU countries. We account for income taxes and cash benefits, along with indirect taxes and in-kind benefits, which are often missing in standard datasets. We find that on average, migrants were net contributors to public finances over the period of 2014–2018 in the EU and, moreover, that they contribute approximately €1.5 thousand more per capita each year than natives. We also show that this difference is partly due to the selection on characteristics that make migrants net fiscal contributors, such as demographic factors and employment probability.
3D modeling of feature-scale fluorocarbon plasma etching in silica
Authors: Rodrigues Frâncio , Felipe Aguinsky Luiz , Lenz Christoph , Hössinger Andreas , Weinbub Josef 
Published: July 2023

AbstractFluorocarbon dry etching of vertical silica-based structures is essential to the fabrication of advanced complementary metal-oxide-semiconductor and dynamic random access memory devices. However, the development of etching technology is challenged by the lack of understanding of complex surface reaction mechanisms and by the intricacy of etchant flux distribution on the feature-scale. To study these effects, we present a three-dimensional, TCAD-compatible, feature-scale modeling methodology. The methodology combines a level-set topography engine, Langmuir kinetics surface reaction modeling, and a combination of reactant flux evaluation schemes. We calibrate and evaluate our model to a novel, highly selective, etching process of a $$\mathrm {SiO_2}$$

SiO
2

via and a $$\textrm{Ru}$$
Ru
hardmask by $$\mathrm {CF_4/C_4F_8}$$

CF
4

/

C
4

F
8

. We adapt our surface reaction model to the novel stack of materials, and we are able to accurately reproduce the etch rates, topography, and critical dimensions of the reported experiments. Our methodology is therefore able to prototype and study novel etching processes and can be integrated into process-aware three-dimensional device simulation workflows.
Differential responses of Orthoptera in vineyards to organic farming, pesticide reduction, and landscape heterogeneity
Authors: Kaczmarek Marvin , Gillich Melanie , Entling Martin H. , Hoffmann Christoph , Schirmel Jens 
Published: July 2023

AbstractConservation measures such as those under the European Green Deal aim to counteract the biodiversity loss by increasing the share of organic farming and reducing pesticide use, as well as increasing the proportion of semi-natural habitats (SNH) in agricultural landscapes. Given the large environmental impacts of agriculture, it is important to thoroughly understand effects of such measures on organisms to provide evidence-based and effective implications for conservation. In this study, we analysed how vineyard management, pesticide reduction, and landscape composition affect Orthoptera densities and species composition. Therefore, we sampled herb- and vine-dwelling orthopterans in a paired design of classic and fungus-resistant grape (FRG) varieties in conventionally and organically managed vineyards along a landscape heterogeneity gradient. Here, FRG varieties allowed us to study the effect of 44% reduced pesticide applications under real-world conditions. Total densities of herb-dwelling Orthoptera did not differ between grape varieties in conventional vineyards, but were 2.9 times higher in FRG varieties under organic management. In contrast, total densities of vine-dwelling Orthoptera, mainly driven by the dominant species Phaneroptera falcata, were similar between grape varieties in organic vineyards, but tended to be 1.4 times higher in classic grapes under conventional management. Furthermore, the management system and SNH in a radius of 500 m in the surrounding landscape influenced species composition.
The Bacterial Gq Signal Transduction Inhibitor FR900359 Impairs Soil-Associated Nematodes
Authors: Hanke Wiebke , Alenfelder Judith , Liu Jun , Gutbrod Philipp , Kehraus Stefan , Crüsemann Max , Dörmann Peter , Kostenis Evi , Scholz Monika , König Gabriele M. 
Published: July 2023

Abstract
The cyclic depsipeptide FR900359 (FR) is derived from the soil bacterium Chromobacterium vaccinii and known to bind Gq proteins of mammals and insects, thereby abolishing the signal transduction of their Gq protein-coupled receptors, a process that leads to severe physiological consequences. Due to their highly conserved structure, Gq family of proteins are a superior ecological target for FR producing organisms, resulting in a defense towards a broad range of harmful organisms. Here, we focus on the question whether bacteria like C. vaccinii are important factors in soil in that their secondary metabolites impair, e.g., plant harming organisms like nematodes. We prove that the Gq inhibitor FR is produced under soil-like conditions. Furthermore, FR inhibits heterologously expressed Gαq proteins of the nematodes Caenorhabditis elegans and Heterodera schachtii in the micromolar range. Additionally, in vivo experiments with C. elegans and the plant parasitic cyst nematode H. schachtii demonstrated that FR reduces locomotion of C. elegans and H. schachtii. Finally, egg-laying of C. elegans and hatching of juvenile stage 2 of H. schachtii from its cysts is inhibited by FR, suggesting that FR might reduce nematode dispersion and proliferation. This study supports the idea that C. vaccinii and its excreted metabolome in the soil might contribute to an ecological equilibrium, maintaining and establishing the successful growth of plants.
RiskNet: Neural Risk Assessment in Networks of Unreliable Resources
Authors: Rusek Krzysztof , Boryło Piotr , Jaglarz Piotr , Geyer Fabien , Cabellos Albert , Chołda Piotr 
Published: July 2023

AbstractWe propose a graph neural network (GNN)-based method to predict the distribution of penalties induced by outages in communication networks, where connections are protected by resources shared between working and backup paths. The GNN-based algorithm is trained only with random graphs generated on the basis of the Barabási–Albert model. However, the results obtained show that we can accurately model the penalties in a wide range of existing topologies. We show that GNNs eliminate the need to simulate complex outage scenarios for the network topologies under study—in practice, the entire time of path placement evaluation based on the prediction is no longer than 4 ms on modern hardware. In this way, we gain up to 12 000 times in speed improvement compared to calculations based on simulations.
On a Kinetic Equation Describing the Behavior of a Gas Interacting Mainly with Radiation
Authors: Demattè Elena 
Published: July 2023

AbstractIn this article we study a kinetic model which describes the interaction between a gas and radiation. Specifically, we consider a scaling limit in which the interaction between the gas and the photons takes place much faster than the collisions between the gas molecules themselves. We prove in the homogeneous case that the solutions of the limit problem solve a kinetic equation for which a well-posedness theory is considered. The proof of the convergence to a new kinetic equation is obtained analyzing the dynamics of the gas–photon system near the slow manifold of steady states.