bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimism as a mediator of the association between social support and peripartum depression among mothers of neonatal intensive care unit hospitalized preterm infants
Authors: Kestler‐Peleg Miri , Lavenda Osnat 
Published: February 2021

AbstractThe birth of a preterm infant and the hospitalization in a neonatal intensive care unit (NICU) add extra functional and emotional demands to the typical transition to motherhood. Therefore, the prevalence of peripartum depression (PPD) among preterm mothers is especially high. As optimism was found to be a mediator of the association between social support and depression, the current study aimed to test this mediation in the population of NICU mothers. A sample of 128 Israeli mothers of 214 NICU hospitalized infants filled out self‐report questionnaires regarding background variables, social support, optimism, and PPD symptoms. As hypothesized, optimism was found to partially mediate the association between social support and PPD symptoms among mother of preterm infants. The higher the perceived social support reported, the higher maternal optimism reported, and in turn, the lower PPD symptoms reported. In accordance with the Transactional Stress Theory, social support and optimism reflect maternal secondary appraisals that impact the way mothers of preterm infants cope with the challenging situation of a preterm birth and NICU hospitalization. Healthcare professionals should encourage preterm mothers' use of social support to increase optimism and reduce the risk of developing PPD.
Optimization, Characterization, and Influence of Microfluidization on Almond Gum‐based Composite Edible Film
Authors: Dhaka Rohant Kumar , Kumar Nishant , Pratibha  , Upadhyay Ashutosh 
Published: February 2021

AbstractThe present study aim is to carry out optimization, development, and characterization of almond – guar gum based composite edible film using response surface statistical methodology . The Box‐Behnken design is used to develop almond gum – guar gum composite edible film with incorporation of plasticizer and surfactant to optimized independent variables concentration and relationship between properties of composite edible film. The study also investigates the effect of microfluidization (at 10 000 and 150 00 psi) on physical, mechanical, barrier, and structural properties of optimized composite edible films. The optimized experiment values of Almond gum, Guar gum, and Sunflower oil are the independent variables, whereas water vapor permeability , Tensile strength , and elongation at break are the dependent variables. Results of study demonstrate that the incorporation of guar gum significantly improves the tensile strength of composite edible films. However, the process of microfluidization significantly improves the properties of the optimized edible film. The paper presents the concept and potential for development of novel composite edible film by almond gum – guar gum biopolymers and effect of microfludization techniques on its physical, barrier, mechanical, and structural properties which can encounter problems in appropriate disposal with food safety and food preservation.
An experimental investigation on phytoremediation performance of water lettuce (Pistia stratiotes L.) for pollutants removal from paper mill effluent
Authors: Singh Jogendra , Kumar Vinod , Kumar Pankaj , Kumar Piyush , Yadav Krishna Kumar , Cabral‐Pinto Marina M. S. , Kamyab Hesam , Chelliapan Shreeshivadasan 
Published: February 2021

AbstractThe present study describes the phytoremediation performance of water lettuce (Pistia stratiotes L.) for physicochemical pollutants elimination from paper mill effluent (PME). For this, pot (glass aquarium) experiments were conducted using 0% (BWW: borewell water), 25%, 50%, 75%, and 100% treatments of PME under natural day/light regime. Results of the experiments showed that the highest removal of pH (10.75%), electrical conductivity (EC: 63.82%), total dissolved solids (TDS: 71.20%) biological oxygen demand (BOD: 85.03%), chemical oxygen demand (COD: 80.46%), total Kjeldahl's nitrogen (TKN: 93.03%), phosphorus (P: 85.56%), sodium (Na: 91.89%), potassium (K: 84.04%), calcium (Ca: 84.75%), and magnesium (Mg: 83.62%), most probable number (MPN: 77.63%), and standard plate count (SPC: 74.43%) was noted in 75% treatment of PME after treatment by P. stratiotes. PCA showed the best vector length for TKN, Na, and Ca. The maximum plant growth parameters including, total fresh biomass (81.30 ± 0.28 g), chlorophyll content (3.67 ± 0.05 mg g−1 f.wt), and relative growth rate (0.0051 gg−1 d−1) was also measured in 75% PME treatment after phytoremediation experiments. The findings of this study make useful insight into the biological management of PME through plant‐based pollutant eradication while leftover biomass may be used as a feedstock for low‐cost bioenergy production.Practitioner points

Biological treatment of paper mill effluent using water lettuce is presented.
Best reduction of physicochemical and microbiological pollutants was attained in 75% treatment.
Maximum production of chlorophyll, plant biomass, and highest growth rate was also observed in 75% treatment.
A Possible Circular Approach for Social Perception of Climate Adaptation Action Planning in Metropolitan Cities
Authors: Scuderi Alessandro , Sturiale Luisa , Timpanaro Giuseppe , La Via Giovanni , Pecorino Biagio 
Published: February 2021

AbstractOne of the factors that will affect the livability of cities and the overall citizens’ quality of life in the future is certainly climate change. Urban areas will play a fundamental role in the commitment against climate change and will have to develop appropriate adaptation actions, in accordance with the European Strategy against climate change, including the planning and implementation of Green Infrastructures (GIs). They produce various environmental and social benefits in the urban context. Various studies have shown that citizenship involvement at all levels is necessary for the evaluation of the sharing of the proposed projects. The research proposes an innovative methodological model to support administrations in the strategic planning choice of GIs according to a shared and circular approach. To perform a multi-layer assessment, the multi-criteria evaluation will be combined with the circular evaluation model called Green City Circle. The evaluation is set up as a circular process, followed by a first investigative phase, followed by a proactive phase of solutions and an implementation phase up to a final stage of evaluation of the results and strategies for long-term sustainability. The study was carried out in the city of Catania to test a planning and management tool for GIs envisaged by the administration as win–win climate adaptation measures.
A Spatial Multi-criteria Decision Support System for Stress Recovery-Oriented Forest Management
Authors: Capecchi Irene , Grilli Gianluca , Barbierato Elena , Sacchelli Sandro 
Published: February 2021

AbstractA solution to cope with chaotic urban settlements and frenetic everyday life is refuging in nature as a way to reduce stress. In general—in recent years—it has been scientifically demonstrated how natural areas are an important environment for psycho-physiological health. As a consequence, it is important to plan dedicated spaces for stress recovery in order to increase the well-being of people. With respect to forests, there is a growing interest in understanding the marketing and tourist potential of forest-therapy activities and policies. This paper develops a decision support system (DSS) for decision makers, based on geographic information system to define the suitability of forest areas to improve psychological and physiological human well-being. Innovative technologies such as electroencephalography (EEG) and virtual reality (VR) are applied to test human status. The DSS combines four sets of indicators in a multi-attribute decision analysis and identifies the areas with the largest stress-recovery potential. Two multi-attribute model—one in summer and one in winter—are elaborated to obtain a dynamic evaluation of suitability. Results show significant differences among forest type, forest management, altitude range, and season in terms of stand suitability. EEG and VR seem to be promising technologies in this research area. Strengths and weaknesses of the approach, as well as potential future improvement and implications for territorial marketing, are suggested.
Public Research and Development Funding for Photovoltaics in Europe—Past, Present, and Future
Authors: Pezzutto Simon , De Negri Juan Francisco , Gantioler Sonja , Moser David , Sparber Wolfram 
Published: February 2021

AbstractThe use of photovoltaic technology is crucial to meet Europe´s ambitious climate and energy objectives set for 2030. To facilitate this shift, technological innovation is a key prerequisite, and the provision of public funding for related research and development is an important trigger. For this study, a vast set of data has been collected to explore how the EU and its Member States, plus Norway and Turkey, have so far invested in photovoltaic research and development. Based on historic values and actual trends, the authors additionally outline the possible future evolution of the investigated public funding. The study aims to shed light on the development of funding from the early 1970s until 2017 (most recent data available) and provide a forecast for 2030 (based on a business-as-usual scenario). According to results, at the national level, public funding had a considerable and steady rise after the OPEC´s oil embargo in 1973, reaching a first peak in the mid-1980s. The authors predict that, according to the most recent trends, by 2030, these will surpass 200 million € annually. In comparison, EU funding has steadily increased since its inception in the late 1980s up until 2007, but its evolvement is distinctively different, evidencing high fluctuations. The cumulative stock is also examined. National sources outweigh EU programs by a factor of almost five, and the stock should surpass 7 billion € by 2030. Based on the analysis and related insights, recommendations are elaborated on how the development of funding could inform policy strategies and actions to support research and development for photovoltaic technology.
Urban Density and Household-Electricity Consumption: An Analysis of the Italian Residential Building Stock
Authors: Antoniucci Valentina , Bisello Adriano , Marella Giuliano 
Published: February 2021

AbstractThe influence of urban density on household electricity consumption is still scarcely investigated, despite the growing attention to building energy performance and the electrification of heating systems advocated at the European level. While the positive correlation between urban sprawl developments and the increasing of marginal costs of public infrastructures, services, amenities, public, and private transports are known, there has been little research on the relationship between urban form and electricity consumption in residential building stock. The present work aims to contribute to filling the gap in the existing literature, presenting the early results of ongoing research on the role of urban form in the household electricity consumption in Italy and, consequently, the related energy costs. The building typology and, in general, the structure of urban dwellings, is crucial to forecasting the electricity requirements, taking into account single housing units and their spatial composition in multi-family homes and neighborhoods. After a brief literature review on the topic, the contribution presents empirical research on the electricity consumption at the municipal level in 140 Italian cities, analyzing the diverse consumption patterns under different conditions of urban density to verify whether there exists a significant statistical correlation between them. The analysis confirms that there is a statistically negative correlation between urban density and the log of electricity consumption, even if its incidence is very limited. Further investigation may highlight whether there exists a threshold for which this relationship would be reversed, explaining the higher electricity consumption in dense metropolitan areas.
Stringy canonical forms
Authors: Arkani-Hamed Nima , He Song , Lam Thomas 
Published: February 2021

Abstract
Canonical forms of positive geometries play an important role in revealing hidden structures of scattering amplitudes, from amplituhedra to associahedra. In this paper, we introduce “stringy canonical forms”, which provide a natural definition and extension of canonical forms for general polytopes, deformed by a parameter α′. They are defined by real or complex integrals regulated with polynomials with exponents, and are meromorphic functions of the exponents, sharing various properties of string amplitudes. As α′→ 0, they reduce to the usual canonical form of a polytope given by the Minkowski sum of the Newton polytopes of the regulating polynomials, or equivalently the volume of the dual of this polytope, naturally determined by tropical functions. At finite α′, they have simple poles corresponding to the facets of the polytope, with the residue on the pole given by the stringy canonical form of the facet. There is the remarkable connection between the α′→ 0 limit of tree-level string amplitudes, and scattering equations that appear when studying the α′→ ∞ limit. We show that there is a simple conceptual understanding of this phenomenon for any stringy canonical form: the saddle-point equations provide a diffeomorphism from the integration domain to the interior of the polytope, and thus the canonical form can be obtained as a pushforward via summing over saddle points. When the stringy canonical form is applied to the ABHY associahedron in kinematic space, it produces the usual Koba-Nielsen string integral, giving a direct path from particle to string amplitudes without an a priori reference to the string worldsheet. We also discuss a number of other examples, including stringy canonical forms for finite-type cluster algebras (with type A corresponding to usual string amplitudes), and other natural integrals over the positive Grassmannian.
The background field method and critical vector models
Authors: Goykhman Mikhail , Rosenhaus Vladimir , Smolkin Michael 
Published: February 2021

Abstract
We use the background field method to systematically derive CFT data for the critical ϕ6 vector model in three dimensions, and the Gross-Neveu model in dimensions 2 ≤ d ≤ 4. Specifically, we calculate the OPE coefficients and anomalous dimensions of various operators, up to next-to-leading order in the 1/N expansion.
Mechanische Schutzfixierung – Herausforderungen und Management
Authors: Popper Valentin , Unterholzner Jakob , Bartova Lucie , Strnad Alexandra , Baldinger-Melich Pia , Frey Richard , Fugger Gernot 
Published: February 2021

ZusammenfassungEinschränkungen der Bewegungsfreiheit psychiatrischer Patienten im Sinne einer mechanischen Fixierung sind in Österreich im Rahmen des Unterbringungsgesetzes zur Abwehr von Selbst- und Fremdgefährdung zulässig, sofern deren Anwendung verhältnismäßig ist. Neben rechtlichen Aspekten sind im Rahmen von Bewegungseinschränkungen auf das Krankenbett ethische Aspekte in Zusammenhang mit einem sorgfältigen klinischen Management unentbehrlich. International gibt es Bestrebungen, Zwangsmaßnahmen dieser Art in der Psychiatrie zu reduzieren. Breiter Konsensus besteht darüber, dass deren Anwendung als Ultima-Ratio-Intervention zu sehen ist, die ausschließlich in Situationen eingesetzt werden soll, die nicht durch gelindere Maßnahmen zu bewältigen sind. Die vorgestellten Fallvignetten aus der psychiatrischen Intermediate Care Station der Wiener Universitätsklinik sollen dies verdeutlichen.
The impact of lynx and wolf on roe deer hunting benefits in Sweden
Authors: Elofsson Katarina , Häggmark Tobias 
Published: February 2021

AbstractLarge carnivores provide ecosystem and cultural benefits but also impose costs on hunters due to the competition for game. The aim of this paper was to identify the marginal impact of lynx (Lynx lynx) and wolf (Canis lupus) on the harvest of roe deer (Capreolus capreolus) in Sweden and the value of this impact. We applied a production function approach, using a bioeconomic model where the annual number of roe deer harvested was assumed to be determined by hunting effort, abundance of predators, availability of other game, and winter severity. The impact of the predators on the roe deer harvests was estimated econometrically, and carnivore marginal impacts were derived. The results showed that if the roe deer resource was harvested under open access, the marginal cost in terms of hunting values foregone varied between different counties, and ranged between 18,000 and 58,000 EUR for an additional lynx family, and 79,000 and 336,000 EUR for an additional wolf individual. Larger marginal costs of the wolf, in terms of the impact on roe deer hunting, were found in counties where the hunting effort was high and the abundance of moose (Alces alces) was low. If instead, hunters could exert private property rights to the resource, the average marginal cost was about 20% lower than it would have been if there was open access, and the difference in wolf impact between counties with high and low moose density was smaller. Together, results suggest that the current plan for expanding the wolf population in south Sweden can be associated with a substantial cost.
The Nobel Prize in Physiology or Medicine—2020
Authors: Hagymási Krisztina 
Published: February 2021

AbstractAt the time of COVID-19 coronavirus pandemia, the Nobel Prize of Physiology or Medicine 2020 was awarded jointly to three researchers Harvey J. Alter, Charles M. Rice, and Michael Houghton for the discovery of Hepatitis C virus. Their works contributed to the isolation of the blood-borne virus, causing chronic hepatitis in 80% of infected person, resulting in cirrhosis, and in elevated risk of liver failure and hepatocellular carcinoma formation. Their results created the basis of HCV screening of blood, and blood products, achieving more than 95% cure of infected people without nearly side effects with direct-acting antiviral agents, supporting the goal of the WHO targeting the elimination of viral hepatitis by 2030.
Mechanical Stability Diagrams for Thermal Barrier Coating Systems
Authors: Rudolphi Mario , Galetz Mathias Christian , Schütze Michael 
Published: February 2021

AbstractLoss of mechanical integrity due to thermal aging and subsequent spallation of the ceramic top layer is one of the dominant failure mechanisms in thermal barrier coating systems. In order to predict and avoid such mechanical failure, a strain-based lifetime assessment model is presented for a novel double-layer thermal barrier system. The investigated ceramic system consists of a gadolinium zirconate layer on top of a layer of yttria-stabilized zirconia prepared by atmospheric plasma spraying. The mechanical stability diagrams generated by the model delineate areas of safe operation from areas where mechanical damage of the thermal barrier coating becomes imminent. Intensive ceramographic inspection is used to investigate the defect growth kinetics in the ceramic top coat after isothermal exposure. Four-point bending experiments with in situ acoustic emission measurement are utilized to determine the critical strain to failure. The results are then used to generate mechanical stability diagrams for the thermal barrier coatings. From these diagrams, it becomes evident that the gadolinium zirconate layer has significantly lower strain tolerance than the yttria-stabilized zirconia. However, the underlying yttria-stabilized zirconia layer will provide some thermal protection even when the gadolinium zirconate layer has failed.
The Gauss2++ model: a comparison of different measure change specifications for a consistent risk neutral and real world calibration
Authors: Berninger Christoph , Pfeiffer Julian 
Published: February 2021

AbstractEspecially in the insurance industry interest rate models play a crucial role, e.g. to calculate the insurance company’s liabilities, performance scenarios or risk measures. A prominant candidate is the 2-Additive-Factor Gaussian Model (Gauss2++ model)—in a different representation also known as the 2-Factor Hull-White model. In this paper, we propose a framework to estimate the model such that it can be applied under the risk neutral and the real world measure in a consistent manner. We first show that any time-dependent function can be used to specify the change of measure without loosing the analytic tractability of, e.g. zero-coupon bond prices in both worlds. We further propose two candidates, which are easy to calibrate: a step and a linear function. They represent two variants of our framework and distinguish between a short and a long term risk premium, which allows to regularize the interest rates in the long horizon. We apply both variants to historical data and show that they indeed produce realistic and much more stable long term interest rate forecast than the usage of a constant function, which is a popular choice in the industry. This stability over time would translate to performance scenarios of, e.g. interest rate sensitive fonds and risk measures.
Sets of periods for chaotic linear operators
Authors: Conejero J. A. , Martínez-Giménez F. , Peris A. , Rodenas F. 
Published: February 2021

AbstractWe provide a complete characterization of the possible sets of periods for Devaney chaotic linear operators on Hilbert spaces. As a consequence, we also derive this characterization for linearizable maps on Banach spaces.
Additive manufacturing of thin electrolyte layers via inkjet printing of highly-stable ceramic inks
Authors: Zhu Zhongqi , Gong Zhiyuan , Qu Piao , Li Ziyong , Rasaki Sefiu Abolaji , Liu Zhiyuan , Wang Pei , Liu Changyong , Lao Changshi , Chen Zhangwei 
Published: February 2021

AbstractInkjet printing is a promising alternative for the fabrication of thin film components for solid oxide fuel cells (SOFCs) due to its contactless, mask free, and controllable printing process. In order to obtain satisfying electrolyte thin layer structures in anode-supported SOFCs, the preparation of suitable electrolyte ceramic inks is a key. At present, such a kind of 8 mol% Y2O3-stabilized ZrO2 (8YSZ) electrolyte ceramic ink with long-term stability and high solid loading (> 15 wt%) seems rare for precise inkjet printing, and a number of characterization and performance aspects of the inks, such as homogeneity, viscosity, and printability, should be studied. In this study, 8YSZ ceramic inks of varied compositions were developed for inkjet printing of SOFC ceramic electrolyte layers. The dispersing effect of two types of dispersants, i.e., polyacrylic acid ammonium (PAANH4) and polyacrylic acid (PAA), were compared. The results show that ultrasonic dispersion treatment can help effectively disperse the ceramic particles in the inks. PAANH4 has a better dispersion effect for the inks developed in this study. The inks show excellent printable performance in the actual printing process. The stability of the ink can be maintained for a storage period of over 30 days with the help of initial ultrasonic dispersion. Finally, micron-size thin 8YSZ electrolyte films were successfully fabricated through inkjet printing and sintering, based on the as-developed high solid loading 8YSZ inks (20 wt%). The films show fully dense and intact structural morphology and smooth interfacial bonding, offering an improved structural quality of electrolyte for enhanced SOFC performance.