bluuebunny/crossref_metadata_2025_split huggingface dataset:
Management strategies for run-of-river hydropower plants: an optimal switching approach
Authors: Olofsson Marcus , Önskog Thomas , Lundström Niklas L. P. 
Published: September 2021

AbstractThe mathematical theory for optimal switching is by now relatively well developed, but the number of concrete applications of this theoretical framework remains few. In this paper, we bridge parts of this gap by applying optimal switching theory to a conceptual production planning problem related to hydropower. In particular, we study two examples of small run-of-river hydropower plants and provide an outline of how optimal switching can be used to create fully automatic production schemes for these. Along the way, we create a new model for random flow of water based on stochastic differential equations and fit this model to historical data. We benchmark the performance of our model using actual flow data from a small river in Sweden and find that our production scheme lies close to the optimal, within 2 and 5 %, respectively, in a long term investigation of the two plants considered.
Individual cheating in the lab: a new measure and external validity
Authors: Albertazzi Andrea 
Published: September 2021

AbstractThis paper investigates to what extent laboratory measures of cheating generalise to the field. To this purpose, we develop a lab measure that allows for individual-level observations of cheating whilst reducing the likelihood that participants feel observed. Decisions made in this laboratory task are then compared to individual choices taken in the field, where subjects can lie by misreporting their experimental earnings. We use two field variations that differ in the degree of anonymity of the field decision. According to our measure, no correlation of behaviour between the laboratory and the field is found. We then perform the same analysis using a lab measure that can only detect cheating at the aggregate level. In this case, we do find a weak correlation between the two environments. We discuss the significance and interpretation of these results.
The Parallels between Kantian Aesthetics and the Presence of Tibetan Art in the Yuan-Ming Era (1279–1644)
Authors: Bacrău Andrei-Valentin 
Published: September 2021

AbstractThis paper will look at Kant’s views of the aesthetic experience, in relationship to Buddhist philosophical and political discussions of art and social organization. The primary focus in Kantian literature explores the relationship between free and dependent beauty, as well as Kant’s paradox of taste. The central argument of the Kantian portion is going to navigate the paradox of taste via Graham Priest’s epistemic and conceptual distinction pertaining to the limits of thought. Secondly, I shall contextualize the debate with similar argumentation found in medieval Tibetan literature, by thinkers such as Tsongkhapa and Drakpa Gyaltsen. Lastly, I shall look at the political and artistic state of affairs in Yuan and Ming Dynasties and assert the applicability of both Kantian and Tibetan discussions of effibility in the context of Tibetan poetry and Thangkas.
Discrimination of Curcuma species from Asia using intron length polymorphism markers in genes encoding diketide-CoA synthase and curcumin synthase
Authors: Liu Qundong , Zhu Shu , Hayashi Shigeki , Iida Osamu , Takano Akihito , Miyake Katsunori , Sukrong Suchada , Agil Mangestuti , Balachandran Indira , Nakamura Norio , Kawahara Nobuo , Komatsu Katsuko 
Published: September 2021

AbstractRecently, Curcuma rhizome-related foods with claimed health benefits have been used worldwide; however, correct identification and quality assessment have not been conducted. Due to the wide distribution and morphological similarities of Curcuma species, the classification of some species is debated and nomenclature is inconsistent among countries. In this study, to elucidate specific molecular markers of medicinally used Curcuma species in Asia, and to solve the confusion on the reported botanical origin of crude drugs, molecular analysis based on the intron length polymorphism (ILP) in genes encoding diketide-CoA synthase and curcumin synthase and the trnK intron sequences was performed using 59 plant specimens and 42 crude drug samples from 13 Curcuma species, obtained from Asian countries. The ILP patterns of the respective species from both plant specimens and crude drug samples revealed high consistency in C. aromatica, C. zedoaria, C. phaeocaulis, C. aeruginosa, C. wenyujin, and C. zanthorrhiza, but showed intraspecies polymorphism in C. longa, C. kwangsiensis, C. amada, C. mangga and C. comosa. The C. longa specimens and samples were separated into three subgroups which were highly consistent with their geographical origins. Based on the ILP markers and the trnK intron sequences, the botanical origins of “Khamin oi” from Thailand were correctly determined to be C. longa or a hybrid between C. longa and other species, and “Wan narn kum” from Thailand and “Kasturi manjal” from India were correctly determined to be C. zanthorrhiza.
Effect of LCFeCr Alloy Additions on the Non-metallic Inclusion Characteristics in Ti-Containing Ferritic Stainless Steel
Authors: Wang Yong , Oh Min Kyo , Kim Tae Sung , Karasev Andrey , Mu Wangzhong , Park Joo Hyun , Jönsson Pär G. 
Published: September 2021

Abstract
The influence of commercial low carbon ferrochromium (LCFeCr) additions on the inclusion characteristics in Ti-containing ferritic stainless steel was studied by laboratory experiment in this work. The inclusions in steel before and after the FeCr alloy additions were investigated through systematic samplings and microscopy investigations of the liquid steel. Different types of inclusions in the FeCr alloy and steel were detected and the evolution of the inclusion characteristics (e.g., composition, size, morphology, and number density) were investigated. The results showed that the Ti content decreased after the FeCr alloy additions. Furthermore, MnCr2O4 spinel inclusions originating from the FeCr alloys transformed into Ti2O3–Cr2O3-based liquid inclusions and Ti2O3-rich solid inclusions. They were formed due to the reactions between MnCr2O4 and TiN inclusions or dissolved Ti in molten steel. The ratio of Ti/Al in the steel melt has a direct influence on the evolution of inclusions from thermodynamic calculations. The addition of FeCr alloys caused an increased number density of these Ti2O3-containing inclusions and TiN inclusions up to 8 minutes from the time of alloy addition. The increased Cr content from 16 to 24 mass pct due to the FeCr additions can increase the critical N content to form TiN inclusions at a specific Ti content. Overall, this study has contributed to the understanding the behavior of inclusions from LCFeCr alloy during the alloying process in Ti-containing steel.
Near-infrared benzodiazoles as small molecule environmentally-sensitive fluorophores
Authors: de Moliner Fabio , Biazruchka Ina , Konsewicz Karolina , Benson Sam , Singh Suraj , Lee Jun-Seok , Vendrell Marc 
Published: September 2021

AbstractThe development of fluorophores emitting in the near-infrared spectral window has gained increased attention given their suitable features for biological imaging. In this work, we have optimised a general and straightforward synthetic approach to prepare a small library of near-infrared-emitting C-bridged nitrobenzodiazoles using commercial precursors. C-bridged benzodiazoles have low molecular weight and neutral character as important features that are not common in most near-infrared dyes. We have investigated their fluorescence response in the presence of a wide array of 60 different biomolecules and identified compound 3i as a potential chemosensor to discriminate between Fe2+ and Fe3+ ions in aqueous media.
Discrete collective estimation in swarm robotics with distributed Bayesian belief sharing
Authors: Shan Qihao , Mostaghim Sanaz 
Published: September 2021

AbstractMulti-option collective decision-making is a challenging task in the context of swarm intelligence. In this paper, we extend the problem of collective perception from simple binary decision-making of choosing the color in majority to estimating the most likely fill ratio from a series of discrete fill ratio hypotheses. We have applied direct comparison (DC) and direct modulation of voter-based decisions (DMVD) to this scenario to observe their performances in a discrete collective estimation problem. We have also compared their performances against an Individual Exploration baseline. Additionally, we propose a novel collective decision-making strategy called distributed Bayesian belief sharing (DBBS) and apply it to the above discrete collective estimation problem. In the experiments, we explore the performances of considered collective decision-making algorithms in various parameter settings to determine the trade-off among accuracy, speed, message transfer and reliability in the decision-making process. Our results show that both DC and DMVD outperform the Individual Exploration baseline, but both algorithms exhibit different trade-offs with respect to accuracy and decision speed. On the other hand, DBBS exceeds the performances of all other considered algorithms in all four metrics, at the cost of higher communication complexity.
Fatal pulmonary thromboembolism in asymptomatic COVID-19
Authors: Keane Gerard , Dorman Tony 
Published: September 2021

Abstract
Background
Coronavirus disease 2019 (COVID-19) has claimed the lives of millions of people globally.

Aims
This study aims to identify the pathological findings at autopsy of asymptomatic COVID-19 death, to compare the incidence of acute bilateral pulmonary thromboembolism (ABPTE) in asymptomatic COVID-19 deaths versus non-COVID-19 deaths and to explore the possible pathogenesis of thrombosis in COVID-19. We also consider the place of COVID-19 in the death certification of 4 cases who died from ABPTE.

Methods
This study primarily reviewed post-mortem reports of 6 asymptomatic COVID-19 deaths. Post-mortem reports for the years 2019 and 2020 were also reviewed to establish the incidence of ABPTE. Each post-mortem report was reviewed for gross examination, histology and toxicology findings. A literature review on COVID-19 autopsy findings, COVID-19 pathogenesis, thrombosis in COVID-19 and asymptomatic SARS-CoV-2 infection was also conducted using PubMed.

Results
Of the 6 asymptomatic COVID-19 deaths, 4 died as a result of ABPTE, 1 died of ischaemic and hypertensive cardiac disease caused by coronary artery disease and ventricular hypertrophy and the remaining case died of heart failure due to dilated cardiomyopathy caused by subendocardial fibrosis. There were 2 cases of bilateral pulmonary thromboembolism (BPTE) in 2019 out of 140 post-mortems. Excluding the 4 cases of ABPTE described already, there was 1 case of ABPTE in 2020 out of 156 post-mortems. A literature review on the pathogenesis of thrombosis in COVID-19 highlighted the significant role that the endothelium plays.

Conclusions
Massive pulmonary thromboembolism may be a significant cause of death in asymptomatic COVID-19 infection.
Does religious social capital affect farmland transactions? A spatial autoregressive analysis in Taiwan
Authors: Chang Tsaiyu 
Published: September 2021

AbstractThis study aims to empirically determine whether social capital affects farmland transactions in Taiwan. It uses a geographic information system to link the village-level data of the largest national farmland survey with the village-level data of religious groups, which are the most widely distributed civil society organizations. The combined data are analyzed using a spatial self-retrogression model. After controlling for farmland spatial adjacency, an increase in social capital brought an increase in the percentage of active leased farmland and a drop in the percentage of fallow farmland. Analysis of the 2015 cross-sectional data revealed that social capital was strongly conducive to the efficient allocation of farmland resources. While belong to irrigation associations can help to allocate farmland resources (as expected), this allocation is more greatly facilitated by the combination of religion and other traditions. Social capital in Taiwan helped to reduce the density of abandoned farmland, especially Daoist temples in religious communities. This study also used panel data to examine changes in within-village farmland tenancy rates. This analysis found that the identified effects of social capital may decline over time.
Navigating Changing Norms Around Sex in Dating Relationships: A Qualitative Study of Young People in Vietnam
Authors: Bergenfeld Irina , Tamler Ilyssa , Sales Jessica M. , Trang Quach Thu , Minh Tran Hung , Yount Kathryn M. 
Published: September 2021

AbstractSocial and economic changes in Vietnam since the economic restructuring of the 1980s have caused a shift in norms about premarital sex. While expectations of female chastity remain, sex before marriage is becoming more common among young people. As the formative phase of a parent randomized controlled trial, the present study examined the normative context of sex in dating relationships from the perspectives of young women and men in Vietnam. Men (n = 12) and women (n = 9) studying at two universities in Hanoi participated in semi-structured interviews that explored perspectives on sexual relationships and sexual coercion among their peers. Thematic analysis synthesized participant narratives into broader themes. Our findings confirmed that, as social norms evolve in Vietnam, young women must navigate shifting, and often contradictory, expectations about sex and dating relationships. Women and men expressed the belief that competing sexual expectations often can limit young women’s sexual agency and contribute to the normalization of sexual coercion in dating relationships. However, some women were embracing greater sexual freedom and reframing norms in ways that reflected their sexual agency. Efforts are needed to address these conflicting expectations, to deepen young men’s understanding of this conflict, and to prevent sexual coercion in young adulthood.
Here I sit, making men in my own image: how learning disorder labels affect teacher student’s expectancies
Authors: Franz David J. , Lenhard Wolfgang , Marx Peter , Richter Tobias 
Published: September 2021

AbstractTeacher’s evaluation of students is sometimes negatively affected by diagnostic labels. We explored such negative effects caused by the labels “dyscalculia”, “dyslexia”, and “ADHD” in teacher students. In Experiment 1, we varied the presence of the dyscalculia and dyslexia label in vignettes between participants. The dyslexia but not the dyscalculia label had a negative effect on participant’s academic expectations. In our preregistered Experiment 2, the presence of the ADHD label in vignettes was manipulated within participants. To understand the cognitive mechanisms driving label effects, we explored participants’ attributions regarding the students’ problems. Furthermore, a short dissonance-based intervention for counteracting negative label effects was implemented. Unexpectedly, we found both negative and positive label effects. The label led to more positive performance expectations and to more negative ratings of problem stability and problem control. The dissonance-based intervention led to more positive evaluations regardless of whether the ADHD label was mentioned or not. Overall, our findings suggest that learning-disorder labels affect teachers’ expectations in different ways.
Avoiding a “despair death crisis” in Europe: the drivers of human (un)sustainability
Authors: Becchetti Leonardo , Conzo Gianluigi 
Published: September 2021

AbstractThe emergence of the despair death crisis in the US stimulates researchers and policymakers to look at subjective wellbeing data from a different perspective. We wonder what can be done to avoid a similar situation in Europe, and to this purpose we analyse factors correlated with depression in the European Social Survey by considering the latter as a proxy of despair deaths. We find the strongest correlations with poor income, high-income expectations, low education, low-skilled jobs, poor social relationships, failure and shocks in affective relational life. We perform robustness checks finding that our results are robust when using alternative measures of psychological health and when instrumenting married status. If causality links between all these drivers and the dependent variable are verified and confirmed, as for marital status, we can conclude that the despair death crisis depends from a mix of material and immaterial factors (with the latter being dominant) that cannot be fully solved by mere monetary redistribution.
Tools for studying and modulating (cardiac muscle) cell mechanics and mechanosensing across the scales
Authors: Swiatlowska Pamela , Iskratsch Thomas 
Published: September 2021

AbstractCardiomyocytes generate force for the contraction of the heart to pump blood into the lungs and body. At the same time, they are exquisitely tuned to the mechanical environment and react to e.g. changes in cell and extracellular matrix stiffness or altered stretching due to reduced ejection fraction in heart disease, by adapting their cytoskeleton, force generation and cell mechanics. Both mechanical sensing and cell mechanical adaptations are multiscale processes. Receptor interactions with the extracellular matrix at the nanoscale will lead to clustering of receptors and modification of the cytoskeleton. This in turn alters mechanosensing, force generation, cell and nuclear stiffness and viscoelasticity at the microscale. Further, this affects cell shape, orientation, maturation and tissue integration at the microscale to macroscale. A variety of tools have been developed and adapted to measure cardiomyocyte receptor-ligand interactions and forces or mechanics at the different ranges, resulting in a wealth of new information about cardiomyocyte mechanobiology. Here, we take stock at the different tools for exploring cardiomyocyte mechanosensing and cell mechanics at the different scales from the nanoscale to microscale and macroscale.
Experimental study on percolation mechanism and displacement characteristics of cold recovery in offshore heavy oil field
Authors: Liu Ying-xian , Tan Jie , Cai Hui , Wang Gong-chang , Mou Song-ru 
Published: September 2021

AbstractThe heavy oil reservoir is a special kind of oil and gas reservoir that differs from the conventional reservoir in many ways. Due to the high viscosity of crude oil, it is not easy to recover. When the viscosity of underground crude oil exceeds 150 cp, the land heavy oil field is generally developed by thermal recovery. S.Z. oilfield is a heavy oil reservoir in the Bohai Sea, with surface crude oil viscosity of 3000–25,000 cp and underground crude oil viscosity of 400–1000 cp. Limited by offshore equipment, the development strategy of land oilfields can't be directly applied. High production capacity is obtained through the cold production development of horizontal branch experimental wells, and the water drive production capacity can reach 40–70 m3/day. At present, there is a lack of research on cold recovery development under the viscosity of crude oil. The existing primary research and common knowledge are challenging to support efficient development technology for effectively producing heavy oil reservoirs. In this paper, through physical simulation experiments, the phase behavior and rheological properties of crude oil in the target block are studied, and the rheological properties of crude oil are clarified. Then, the depletion production and water flooding experiments are carried out, and the displacement characteristics and laws of water flooding cold production are analyzed. Finally, the indoor experiments of water flooding sweep efficiency and oil displacement efficiency in the target block are carried out. Clear its micro and macro spread. It provides technical support for the effective production of offshore heavy oil fields.
Improvement of QDaedalus measurements with continuous detection of environmental parameters
Authors: Völgyesi Lajos , Tóth Gyula 
Published: September 2021

AbstractQDaedalus is an automated, computer-controlled astro-geodetic measurement system. Astronomical deflections of the vertical measured by the QDaedalus system are significantly influenced by atmospheric refraction. Therefore, the measuring system was further improved by recording the environmental parameters influencing the refraction (air pressure, temperature, humidity) with accurate and high time resolution. In addition to meteorological parameters, refraction also depends on the spectrum of the stars. Both the continuously measured meteorological parameters and the color of the stars were taken into account in the calculation of the refraction. To control the method, we used the deflection of the vertical values of the Pistahegy point in the southern part of Budapest which were determined over 7 years during 260 night measurements. The corrected measurements fit within 0.01" with the average value of previous Pistahegy measurements. The standard deviation of the differences due to the corrections, however, may reach 0.015" for the DOV components.
Differences and similarities between precipitation patterns of different climates
Authors: Ilyés Csaba , Wendo Valerie A. J. A. , Carpio Yetzabel Flores , Szűcs Péter 
Published: September 2021

AbstractIn recent years water-related issues are increasing globally, some researchers even argue that the global hydrological cycle is accelerating, while the number of meteorological extremities is growing. With the help of large number of available measured data, these changes can be examined with advanced mathematical methods. In the outlined research we were able to collect long precipitation datasets from two different climatical regions, one sample area being Ecuador, the other one being Kenya. Using the methodology of spectral analysis based on the discrete Fourier-transformation, several deterministic components were calculated locally in the otherwise stochastic time series, while by the comparison of the results, also with previous calculations from Hungary, several global precipitation cycles were defined in the time interval between 1980 and 2019. The results of these calculations, the described local, regional, and global precipitation cycles can be a helpful tool for groundwater management, as precipitation is the major resource of groundwater recharge, as well as with the help of these deterministic cycles, precipitation forecasts can be delivered for the areas.