bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fundamental theorem of asset pricing with acceptable risk in markets with frictions
Authors: Arduca Maria , Munari Cosimo 
Published: June 2023

AbstractWe study the range of prices at which a rational agent should contemplate transacting a financial contract outside a given market. Trading is subject to nonproportional transaction costs and portfolio constraints, and full replication by way of market instruments is not always possible. Rationality is defined in terms of consistency with market prices and acceptable risk thresholds. We obtain a direct and a dual description of market-consistent prices with acceptable risk. The dual characterisation requires an appropriate extension of the classical fundamental theorem of asset pricing where the role of arbitrage opportunities is played by good deals, i.e., costless investment opportunities with acceptable risk–reward tradeoff. In particular, we highlight the importance of scalable good deals, i.e., investment opportunities that are good deals regardless of their volume.
Implied volatility smoothing at COVID-19 times
Authors: Vitali Sebastiano , Kopa Miloš , Giana Gabriele 
Published: June 2023

AbstractThis work aims at studying the impact of the SARS-CoV-2 pandemic on the global financial markets. In particular, such impact is analysed through the changes of the shape of the implied volatility smile of the options written on several equity indexes and on several stocks. The implied volatility function is estimated using the market-based information of liquid options and applying a semi-parametric smoothing technique that exploits a kernel function and no-arbitrage conditions. Such approach is applied to an extensive set of data to study the evolution of the implied volatility functions through the months of the pandemic. We show, in several cases, a sudden and massive change in the shape of the implied volatility functions.
Easier said than defined? Conceptualising justice in food system transitions
Authors: de Bruin Annemarieke , de Boer Imke J.M. , Faber Niels R. , de Jong Gjalt , Termeer Katrien J.A.M. , de Olde Evelien M. 
Published: June 2023

AbstractThe transition towards sustainable and just food systems is ongoing, illustrated by an increasing number of initiatives that try to address unsustainable practices and social injustices. Insights are needed into what a just transition entails in order to critically engage with plural and potentially conflicting justice conceptualisations. Researchers play an active role in food system transitions, but it is unclear which conceptualisations and principles of justice they enact when writing about food system initiatives. To fill this gap this paper investigates: Which conceptualisations of justice emerge from the literature related to food system initiatives and which principles of justice do authors use? We developed an initial framework for which we drew on political philosophy literature. We then undertook an extensive review of the food system transitions literature using this framework and were able to identify a range of recognition, distributive, and procedural justice conceptualisations and associated principles of justice. Recognised as subjects of justice were those with a particular role in the food system, people who are marginalised, Indigenous communities, those with experiences of negative consequences of the food system, future generations, and nonhumans. The identified conceptualisations and the developed framework can be used by those involved in food system initiatives to reflect on how they conceptualise justice. We challenge them to be more explicit about who they do and do not recognise as subjects of justice and which principles of justice they use. Such clarity is needed to reflexively enact a just transition towards sustainable and just food systems.
Caring animals and the ways we wrong them
Authors: Benz-Schwarzburg Judith , Wrage Birte 
Published: June 2023

AbstractMany nonhuman animals have the emotional capacities to form caring relationships that matter to them, and for their immediate welfare. Drawing from care ethics, we argue that these relationships also matter as objectively valuable states of affairs. They are part of what is good in this world. However, the value of care is precarious in human-animal interactions. Be it in farming, research, wildlife ‘management’, zoos, or pet-keeping, the prevention, disruption, manipulation, and instrumentalization of care in animals by humans is ubiquitous. We criticize a narrow conception of welfare that, in practice, tends to overlook non-experiential forms of harm that occur when we interfere with caring animals. Additionally, we point out wrongs against caring animals that are not just unaccounted for but denied by even an expansive welfare perspective: The instrumentalization of care and caring animals in systems of use can occur as a harmless wrong that an approach purely focused on welfare may, in fact, condone. We should therefore adopt an ethical perspective that goes beyond welfare in our dealings with caring animals.
Arsenic toxicity to earthworms in soils of historical As mining sites: an assessment based on various endpoints and chemical extractions
Authors: Karczewska Anna , Gruss Iwona , Szopka Katarzyna , Dradrach Agnieszka , Twardowski Jacek , Twardowska Kamila 
Published: June 2023

AbstractEisenia fetidais an earthworm species often used to assess the toxicity of contaminants in soils. Several studies indicated that its response can be unpredictable because it depends both on total concentrations of contaminants and also on their forms that differ in susceptibility to be released from soil solid phase. The issue is complex because two various uptake routes are concurrently involved, dermal and ingestion in guts, where the bioavailability of contaminants can considerably change. The aim of this study was to analyze the toxicity of arsenic (As) in various strongly contaminated meadow and forest soils, representative for former As mining and processing area, to earthwormsE. fetidaand its accumulation in their bodies. An attempt was made to find relationships between the response of earthworms and chemical extractability of As. In the bioassay, carried out according to the standard ISO protocol, different endpoints were applied: earthworm survival, fecundity measured by the numbers of juveniles and cocoons, earthworm weight and As accumulation in the bodies. The results proved thatE. fetidacan tolerate extremely high total As concentrations in soils, such as 8000 mg/kg, however, the individual endpoints were not correlated and showed different patterns. The most sensitive one was the number of juveniles. No particular soil factor was identified that would indicate an exceptionally high As susceptibility to the release from one of soils, however, we have demonstrated that the sum of non-specifically and specifically bound As (i.e. fractions F1 + F2 in sequential extraction according to Wenzel) could be a good chemical indicator of arsenic toxicity to soil invertebrates.
Tail processes and tail measures: An approach via Palm calculus
Authors: Last Günter 
Published: June 2023

AbstractUsing an intrinsic approach, we study some properties of random fields which appear as tail fields of regularly varying stationary random fields. The index set is allowed to be a general locally compact Hausdorff Abelian group $${\mathbb G}$$
G
. The values are taken in a measurable cone, equipped with a pseudo norm. We first discuss some Palm formulas for the exceedance random measure $$\xi$$
ξ
associated with a stationary (measurable) random field $$Y=(Y_s)_{s\in {\mathbb G}}$$

Y
=

(

Y
s

)

s
∈
G

. It is important to allow the underlying stationary measure to be $$\sigma$$
σ
-finite. Then we proceed to a random field (defined on a probability space) which is spectrally decomposable, in a sense which is motivated by extreme value theory. We characterize mass-stationarity of the exceedance random measure in terms of a suitable version of the classical Mecke equation. We also show that the associated stationary measure is homogeneous, that is a tail measure. We then proceed with establishing and studying the spectral representation of stationary tail measures and with characterizing a moving shift representation. Finally we discuss anchoring maps and the candidate extremal index.
Till taxes keep us apart? The impact of the marriage tax on the marriage rate
Authors: Myohl Nadia 
Published: June 2023

AbstractMarried couples can face a higher or lower tax burden than cohabitating couples with the same income when the former are taxed as one unit. I study the effect of such joint income taxation on the marriage rate in Switzerland, where tax differentials between married and cohabitating couples vary considerably across cantons. For this purpose, I construct a dataset containing sociodemographic and -economic variables on every individual living in Switzerland and use household-level information to identify cohabitating couples. Using a simulated instrumental variable approach, I find a negative impact of joint income taxation on the marriage rate for couples married between 2012 and 2019. The effect is driven by households without children and from the lower end of the income distribution.
Graph derivative indices interpretation from the quantum mechanics perspective
Authors: Vivas-Reyes Ricardo , Martínez-Santiago Oscar , Marrero-Ponce Yovani 
Published: June 2023

Abstract
This contribution examines the interpretation of the Graph Derivative Indices (GDIs) from the Quantum Mechanics (QM) perspective and its relation with the Hückel molecular orbital (HMO) method. The different elements used for calculating Graph Discrete Derivatives over atom-pairs are related to the QM integrals appearing in the Hückel Determinant. The relation between the Coulomb and Resonance Integrals was estimated by the topological way and quantitative values for resonance energies were calculated. Some GDI calculations were performed to the topological interpretation of the aromaticity, expressing the frequencies as probabilities. Starting from topological interpretation for aromaticity, GDI calculations were performed. There is the possibility of expressing the frequencies as probabilities. It allows explaining the atypical formation of cyclobutadiene from the entropic point of view. Considering this hypothesis, experimental resonance energies for 14 molecules were correlated with GDI-topological resonance energies by the same structures. Taking into consideration the regularity and coherence stablished in experiments performed with the GDIs, it is possible to assure that GDIs have interpretations in QM terms.
Hybrid modeling of a multidimensional coupled nonlinear system with integration of Hamiltonian mechanics
Authors: Abbasi Amirhassan , Kambali Prashant N. , Nataraj C. 
Published: June 2023

AbstractThis study concerns hybrid modeling of a multidimensional coupled nonlinear system. The underlying basis for the model is derived from Hamiltonian mechanics capitalizing on the broad utility and efficiency of energy-based reasoning in modeling high-dimensional systems. The hybrid model is essentially an artificial neural network with a computational graph that is modified from conventional neural networks in a few significant ways. The first modification includes incorporating an intermediate scalar function representing the Hamiltonian learned from data. The second modification enhances input/output channels for capturing the multidimensional dynamics of the system. The main goal of such hybrid reasoning is to improve the extrapolation capability of the model by enforcing conformance with some key aspects of the underlying physics in the form of a bias. The results demonstrate that incorporating this physics-based bias into the hybrid model empowers it to produce long-term and physically plausible predictions. The proposed modeling approach also shows high scalability for energy-based modeling of multidimensional dynamic systems in general.
Inexact free derivative quasi-Newton method for large-scale nonlinear system of equations
Authors: Arias C. A. , Gómez C. 
Published: June 2023

AbstractIn this work, we propose a free derivative quasi-Newton method for solving large-scale nonlinear systems of equation. We introduce a two-stage linear search direction and develop its global convergence theory. Besides, we prove that the method enjoys superlinear convergence rate. Finally, numerical experiments illustrate that the proposed method is competitive with respect to Newton-Krylov methods and other well-known methods for solving large-scale nonlinear systems of equations.
High relative accuracy through Newton bases
Authors: Mainar E. , Peña J. M. , Rubio B. 
Published: June 2023

AbstractBidiagonal factorizations for the change of basis matrices between monomial and Newton polynomial bases are obtained. The total positivity of these matrices is characterized in terms of the sign of the nodes of the Newton bases. It is shown that computations to high relative accuracy for algebraic problems related to these matrices can be achieved whenever the nodes have the same sign. Stirling matrices can be considered particular cases of these matrices, and then computations to high relative accuracy for collocation and Wronskian matrices of Touchard polynomial bases can be obtained. The performed numerical experimentation confirms the accurate solutions obtained when solving algebraic problems using the proposed factorizations, for instance, for the calculation of their eigenvalues, singular values, and inverses, as well as the solution of some linear systems of equations associated with these matrices.
Service Coordination in Early Childhood Home Visiting: a Multiple-Case Study
Authors: Correll Leeya , West Allison , Duggan Anne K. , Gruss Kelsey , Minkovitz Cynthia S. 
Published: June 2023

AbstractEarly childhood home visiting is a preventive service delivery strategy that aims to promote child and parent health, positive parenting, child development and school readiness, and family economic self-sufficiency. To meet families’ needs, programs provide a combination of direct services, and referrals and linkages to community-based services. Service coordination is therefore a critical component of home visiting’s role within the early childhood system of care. This multiple-case study describes facilitators and barriers to service coordination, as identified by home visiting program staff and families. We interviewed program managers, supervisors, home visitors, and families from four local home visiting programs in the eastern USA with diverse contextual characteristics that showed evidence of having strong coordination. Using multiple-case study methodology, we analyzed the data to understand key facilitators and barriers to service coordination for each case and identify and describe common themes across cases. Facilitators included interagency relationships and collaboration; a culture of teamwork; dedicated, well-connected staff; supervision; trusting relationships with families; and warm handoffs. Barriers to service coordination were limited availability and accessibility of local resources, perceived stigma among other service providers, and families’ ambivalence toward some services. Home visiting staff and families emphasized that relationships at multiple levels are fundamental to service coordination, barriers are complex, and coordination is time- and labor-intensive. Coalitions that bring together diverse stakeholder groups at the state and local levels can provide meaningful coordination support to the early childhood services.
Beyond Income and Inequality: The Role of Socio-political Factors for Alleviating Energy Poverty in Europe
Authors: Certomà Chiara , Corsini Filippo , Di Giacomo Marina , Guerrazzi Marco 
Published: June 2023

AbstractIn each country, the occurrence of energy poverty among resident households is usually related to low income and its unequal distribution. Like other manifestations of material deprivation, however, such a phenomenon is likely to be also correlated with some internal socio-political factors that allow its persistence by preventing effective solutions. In this paper, we build and analyse a dataset for European countries by assessing the role of the perceived quality of internal public governance on different measures of energy deprivation. Specifically, we rely on the Worldwide Governance Indicators provided by the World Bank and estimate an array of panel models. After controlling for income, income inequality, energy prices, and weather conditions, we find that high government effectiveness, good regulatory quality, widespread property rights, contract enforcement, and corruption control are significantly associated with lower energy poverty. In addition, we consider the policy implications of this broader perspective on energy deprivation.
Mapping of dressed and processed poultry products in Bangladesh: Identifying the food safety risks for policy intervention
Authors: Ferdous Jinnat , Uddin Md Helal , Mahmud Rashed , Hennessey Mathew , Al Sattar Abdullah , Das Gupta Suman , Gibson Justine S. , Alders Robyn , Henning Joerg , Fournié Guillaume , Hoque Md. Ahasanul 
Published: June 2023

AbstractBangladesh’s commercial poultry production is growing rapidly, including the commercial processing of poultry. This expansion of poultry processing plants is fueled by the belief that this sub-sector provides safer food and has less food-borne disease risks compared to traditional live bird markets (LBMs). The purpose of this study is to describe Bangladesh’s dressed and processed poultry production and distribution network (PDN), identify what and where quality control occurs, and suggest where improvements could be made. Engaging with PDN for dressed and processed poultry, we used in-depth interviews with key informants to identify the stakeholders involved and their connections with other poultry PDNs. In addition, we mapped out the supply and distribution of dressed and processed poultry and quality control processes occurring throughout the network. We argue that dressed and processed poultry PDNs are closely connected with traditional PDNs such as LBMs, with multiple crossover points between them. Also, there is a lack of consistency in quality control testing and a lack of meat traceability. Consequently, perceptions of dressed and processed poultry being safer than birds from LBMs needs to be treated with caution. Otherwise, unsubstantiated consumer confidence in dressed poultry may inadvertently increase the risk of food-borne diseases from these products.
Localization Pattern of Dispatched Homolog 2 (DISP2) in the Central and Enteric Nervous System
Authors: Heimke Marvin , Richter Florian , Heinze Tillmann , Kunke Madlen , Wedel Thilo , Böttner Martina , Egberts Jan-Hendrik , Lucius Ralph , Cossais François 
Published: June 2023

AbstractDispatched homolog (DISP) proteins have been implicated in the regulation of hedgehog signaling during embryologic development. Although DISP2 has recently been associated with neuronal development and control of cognitive functions, its localization pattern in the mammalian central and peripheral nervous system has not yet been investigated. In this study, the Disp2 expression profile was assessed in human tissues from publicly available transcriptomic datasets. The DISP2 localization pattern was further characterized in the human and rat central nervous system (CNS), as well as within the colonic enteric nervous system (ENS) using dual-label immunohistochemistry. Colocalization of DISP2 with neuronal and glial markers was additionally analyzed in murine primary ENS culture. At transcriptomic level, DISP2 expression was predominant in neuronal cell types of the CNS and ENS. DISP2 immunoreactivity was mainly located within PGP9.5-positive neurons rather than in S100-positive glial cells throughout the nervous system. Investigation of human and rat brain tissues, colonic specimens, and murine ENS primary cultures revealed that DISP2 was located in neuronal cell somata, as well as along neuronal processes both in the human and murine CNS and ENS. Our results indicate that DISP2 is prominently localized within neuronal cells of the CNS and ENS and support putative functions of DISP2 in these tissues.
Transgender Clinic: The Importance of a Diverse Medicine
Authors: Nieva-Posso Daniel Andrés , Arias-Castillo Liliana , García-Perdomo Herney Andrés 
Published: June 2023

AbstractMedicine cannot be outside of the historical changes occurring in our society. The identity and sexual diversity of an individual is a critical aspects of their health. Creating inclusive units that allow access to health care for a population with different needs is the hallmark of improving their care.
Extension of the Practical Salinity Scale to Estimate Major Ion Concentrations: Application to the San Francisco Estuary
Authors: Hutton Paul H. , Roy Sujoy B. 
Published: June 2023

AbstractThis paper presents a novel approach to estimate major ion concentrations in estuaries from a known specific conductance. Assuming two-source conservative mixing at steady state, we propose an extension of the Practical Salinity Scale 1978 to estimate concentrations of major ions and total dissolved solids as functions of the conductivity ratio, which is the ratio of sample conductivity and seawater conductivity. We employ an extensive salinity data set that includes measurements of specific conductance and concentrations of major ions and total dissolved solids to demonstrate its validity and limitations for the San Francisco estuary. We show the proposed extension to be valid in waters influenced by seawater intrusion at specific conductance values greater than or equal to 0.25 mS/cm and propose adjusted model constants to account for ionic composition under less saline conditions. We observed evidence of seasonal bias in model residuals and hypothesize that this bias is related to the simplified assumption of fixed upstream end member concentrations. This finding of seasonal bias suggests that upstream end member concentrations are more reflective of high alkalinity freshwater contributions from December through June, compared to other months.
Identifying challenges in maintenance planning for on-demand UAM fleets using agent-based simulations
Authors: Sieb Patrick , Michelmann Johannes , Flöter Felix , Wicke Kai 
Published: June 2023

AbstractThe novel aircraft architectures for Urban Air Mobility (UAM), combined with pure on-demand operations, mean a significant change in aircraft operation and maintenance compared to traditional airliners. Future flight missions and related variables such as the aircraft position or utilisation are unknown for on-demand operation. Consequently, existing methods to optimise aircraft assignment and maintenance planning cannot be transferred. This study examines the behaviour of an aircraft fleet in an on-demand UAM transport system regarding the interlinking between operation and maintenance. Initially, a potential maintenance schedule for UAM vehicles is deduced. A transport and maintenance simulation is introduced where aircraft are modelled as agents servicing a simple network. As aircraft reach their maintenance intervals, they transfer to one of the maintenance bases and compete for that resource. Since that competition can result in avoidable waiting times, the maintenance costs are extended by running costs for the bases and opportunity costs for missed revenue during these waiting periods. Opportunity costs are cost drivers. To reduce the waiting times, two operational approaches are examined: Extending the opening hours of the maintenance facilities and checking the aircraft earlier to reduce simultaneous maintenance demand. While an extension of operating hours reduces the overall maintenance costs, the adjustment of tasks is more effective to lower waiting times. Thus, an improved system needs to use a combined approach. That combination results in overall maintenance costs of approximately $ 58 per flight hour of which about seven percent account for the opportunity costs.