bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of pH on Rhodomonas salina growth, biochemical composition, and taste, produced in semi-large scale under sunlight conditions
Authors: Latsos Christos , Wassenaar Eric , Moerdijk Tanja , Coleman Bert , Robbens Johan , van Roy Sandra , Bastiaens Leen , van Houcke Jasper , Timmermans Klaas R. 
Published: April 2022

AbstractRhodomonas salina is a microalgal species, belonging to the cryptophytes, and is widely used as aquaculture feed because of its high nutritional profile and phycoerythrin content. This study investigated the effect of pH on the growth, biochemical composition, and taste of R. salina when cultivated on a semi-large scale under natural light conditions. Two tubular photobioreactors (200 L) were used for the cultivation of R. salina with sunlight as the only illumination source. Two different pH setpoints were applied, 7 and 8.5. Optimal temperature and nutrient conditions were applied, according to previous research findings. The results demonstrated that the productivity of R. salina was higher at pH 7, 0.06–0.14 gdry weight L−1 day−1, compared to pH 8.5, 0.03–0.12 gdry weight L−1 day−1. It was found that protein and total fatty acid concentrations were higher in the biomass that was produced at pH 8.5, 33.7% and 12.3% of dry weight, respectively, while at pH 7, the protein content was 31.9% and the total fatty acids 8.8% of dry weight. The phycoerythrin concentration, like protein, was higher at pH 8.5, 2.7% of dry weight, compared to pH 7, 1% of dry weight. The free amino acid and nucleotide profile of R. salina was affected by the pH, resulting in increased equivalent umami concentration at pH 7. For the sensory evaluation, an expert panel on algae flavors evaluated the effect of pH on the taste of R. salina, reporting that the biomass that was produced at pH 7 had more umami flavor than the biomass that was produced at pH 8.5, which was evaluated as more bitter.
3D projection of the LuGre friction model adapted to varying normal forces
Authors: Colantonio Lorenzo , Dehombreux Pierre , Hajžman Michal , Verlinden Olivier 
Published: April 2022

AbstractIn this paper, we develop an adaptation of the LuGre friction model so as to allow the development of the friction force and its application in any directions on systems subjected to varying normal forces. This is achieved by projecting a modified LuGre model adapted to varying normal forces in 3D along an arbitrary orthogonal system. Consequently, the direction of the friction force is automatically oriented in the correct direction, thus stick, stick-slip, and slip behavior can be represented in all directions. The projected friction model has the following friction features: stick-slip, presliding displacement, frictional lag, varying break-away force, viscous friction, Stribeck effect, and is adapted to varying normal forces. The equivalence of this projected LuGre model with the modified one is proven analytically. The friction model is then applied to simulate the friction on two mechanical systems. The first system consists of a cube sliding on a plane with a transition from stick to slip due to varying normal forces and with a pulling force oriented in multiples directions of the contact plane. The second one is a more complex system consisting of three turbine blades that uses friction to damp their resonance. The results obtained for both systems are consistent with literature.
The perceived seriousness of crimes: inter-individual commonalities and differences
Authors: Borg Ingwer , Hermann Dieter , Bilsky Wolfgang 
Published: April 2022

AbstractThe paper focuses on ratings of the perceived seriousness of crimes and how they can be explained in a testable scaling model (SOCID) that shows commonalities and differences among individuals. The model assumes that crimes are first represented on each person’s psychological map. This map can be described as a geometric space spanned by the crimes’ perceived attributes. When assessing the seriousness of crimes, the person positions him-/herself on this map by finding a point whose distances to the crime points express how much he/she is rejects the respective crimes. Using three representative German surveys on crime prevention, the SOCID model is positively tested for various predictions: (1) All persons in our surveys share the same psychological map of crimes; (2) a 2-dimensional map accurately describes the persons’ observed badness ratings; (3) the points representing the crimes form essentially linear manifolds on the maps; (4) the older and the more conservation-oriented a person, the more similar his/her distances to the crimes; (5) gender has no systematic effect on the distribution of person-points on the crimes’ maps.
Solar-Cycle Variability Results from the Solar Radiation and Climate Experiment (SORCE) Mission
Authors: Woods Thomas N. , Harder Jerald W. , Kopp Greg , Snow Martin 
Published: April 2022

AbstractTheSolar Radiation and Climate Experiment(SORCE) was a NASA mission that operated from 2003 to 2020 to provide key climate-monitoring measurements of total solar irradiance (TSI) and solar spectral irradiance (SSI). This 17-year mission made TSI and SSI observations during the declining phase of Solar Cycle 23, during all of Solar Cycle 24, and at the very beginning of Solar Cycle 25. The SORCE solar-variability results include comparisons of the solar irradiance observed during Solar Cycles 23 and 24 and the solar-cycle minima levels in 2008 – 2009 and 2019 – 2020. The differences between these two minima are very small and are not significantly above the estimate of instrument stability over the 11-year period. There are differences in the SSI variability for Solar Cycles 23 and 24, notably for wavelengths longer than 250 nm. Consistency comparisons with SORCE variability on solar-rotation timescales and solar-irradiance model predictions suggest that the SORCE Solar Cycle 24 SSI results might be more accurate than the SORCE Solar Cycle 23 results. The SORCE solar-variability results have been useful for many Sun–climate studies and will continue to serve as a reference for comparisons with future missions studying solar variability.
The structuralist approach to underdetermination
Authors: Lee Chanwoo 
Published: April 2022

AbstractThis paper provides an exposition of the structuralist approach to underdetermination, which aims to resolve the underdetermination of theories by identifying their common theoretical structure. Applications of the structuralist approach can be found in many areas of philosophy. I present a schema of the structuralist approach, which conceptually unifies such applications in different subject matters. It is argued that two classic arguments in the literature, Paul Benacerraf’s argument on natural numbers and W. V. O. Quine’s argument for the indeterminacy of translation, can be analyzed as instances of the structuralist schema. These two applications illustrate different kinds of conclusions that can be drawn through the structuralist approach; Benacerraf’s argument shows that we can derive an ontological conclusion about the given subject matter, while Quine’s structuralist approach leads to a semantic conclusion about how to determine linguistic meanings given radical translation. Then, as a case study, I review a recent debate in metaphysics between Shamik Dasgupta, Jason Turner, and Catharine Diehl to consider the extent to which different instances of the structuralist schema are conceptually unified. Both sides of the debate can be interpreted as utilizing the structuralist approach; one side uses the structuralist approach for an ontological conclusion, while the other side relies on a semantic conclusion. I argue that this has a strong dialectical consequence, which sheds light on the conceptual unity of the structuralist approach.
Bridging State and Nonprofit: Differentiated Embeddedness of Chinese Political Elites in Charitable Foundations
Authors: Ma Ji 
Published: April 2022

AbstractHow are political elites embedded in both civil and political domains? I studied 246 Chinese political elites who also served on nonprofit foundations’ boards from 2011 to 2015 and conceptualized a framework to understand the state-nonprofit relationship before 2015. The political elites can build horizontal connections with foundations, helping the party-state reach nonprofit actors. They can also build vertical connections with political groups, helping foundations access political resources. The dual-role elites’ connectedness with foundations and in the polity varies by their primary positions in the political system. Effective communication between the state and nonprofit actors requires elites to have strong connections in both the civil and political domains, but the situation in China is far from ideal—those embedded in foundations are disconnected from the polity, and those connected in the polity are marginalized in foundations.
Locke and Berkeley on Abstract Ideas: From the Point of View of the Theory of Reference
Authors: Tomida Yasuhiko 
Published: April 2022

AbstractIn the Essay Locke argues abstract ideas within the framework of the descriptivist theory of reference. For him, abstract ideas are, in many cases, conceptual ideas that play the role of “descriptions” or “descriptive contents,” determining general terms’ referents. In contrast, in the introduction of the Principles, Berkeley denies Lockean abstract ideas adamantly from an imagistic point of view, and he offers his own theory of reference seemingly consisting of referring expressions and their referents alone. However, interestingly, he mentions a general term’s “definition” and suggests that it determines the scope of the term’s referents. For example, he takes up the definition of a triangle as “a plain Surface comprehended by three right Lines” and suggests that just as Locke’s general idea of a triangle does, the definition determines the referents of the general term “triangle.” His definition reminds us of the fact that as Descartes grasps the content of the general idea of a triangle as “a figure enclosed by three lines,” so Locke grasps the abstract idea of a triangle as “a Figure including a Space between three Lines,” and so on. That is, since Berkeley is an imagist, he does not acknowledge Locke’s conceptual abstract ideas as “ideas,” but although he verbally denies “abstract ideas,” his theory of reference also actually has the same descriptivist framework consisting of referring expressions, their descriptive contents, and their referents. Thus, we understand the real reason why Berkeley’s criticism of Locke seems beside the point.
Comparison of two small-strain concepts: ISA and intergranular strain applied to barodesy
Authors: Tafili Merita , Medicus Gertraud , Bode Manuel , Fellin Wolfgang 
Published: April 2022

AbstractThe intergranular strain concept (IGS) and intergranular strain anisotropy formulation (ISA) are state of the art extensions to describe small-strain effects. The main conceptional difference between ISA and IGS is the purely elastic strain range introduced by ISA. In addition, the ISA formulation used in this article includes an additional state variable in order to reduce accumulation effects for cyclic loading with a larger number of repetitive cycles. Barodesy is enhanced here with ISA to improve its small-strain predictions. The performance of this new model is compared with barodesy enhanced with IGS. It turned out that the small-strain extensions do not negatively influence predictions under monotonic loading. Differences between ISA and ISG are only remarkable for very small-strain cycles and even there they are negligible for certain parameter values.
Protective Places: the Relationship between Neighborhood Quality and Preterm Births to Black Women in Oakland, California (2007–2011)
Authors: Berkowitz Rachel L. , Mujahid Mahasin , Pearl Michelle , Poon Victor , Reid Carolina K. , Allen Amani M. 
Published: April 2022

Abstract
Black women have the highest incidence of preterm birth (PTB). Upstream factors, including neighborhood context, may be key drivers of this increased risk. This study assessed the relationship between neighborhood quality, defined by the Healthy Places Index, and PTB among Black women who lived in Oakland, California, and gave birth between 2007 and 2011 (N = 5418 women, N = 107 census tracts). We found that, compared with those living in lower quality neighborhoods, women living in higher quality neighborhoods had 20–38% lower risk of PTB, independent of confounders. Findings have implications for place-based research and interventions to address racial inequities in PTB.
Subsidiary Agency in Gender Equality Practice Implementation: The Case of Korean MNE Subsidiaries in Sweden
Authors: Song Ji-Won 
Published: April 2022

AbstractFocusing on contextualized understandings of institutional distance and subsidiary agency, in this article I explore how multinational enterprise (MNE) subsidiaries address gender equality in the workplace. In particular, this study analyzes the strategic responses of three Korean MNE subsidiaries in Sweden to examine the extent to which they exercise agency over gender equality issues within specific institutional environment. In Swedish institutional environment, there is high demand for subsidiaries to develop gender-balanced organizational cultures and practices. As a result, Korean subsidiaries may actively consider promoting a more gender-equal working environment to gain local legitimacy, or they may retain their home country’s practices and avoid such pressures. The analysis shows that the subsidiaries’ perceptions of institutional distance and the organizational conditions in which subsidiaries are embedded shape their agency (strategic responses) and co-evolve with host institutions. I thus contribute to existing MNE agency literature by highlighting subsidiaries’ agency building process regarding gender equality issues.
Susceptibility to COVID-19 Diagnosis in People with Down Syndrome Compared to the General Population: Matched-Cohort Study Using Primary Care Electronic Records in the UK
Authors: Baksh R. Asaad , Strydom Andre , Pape Sarah E. , Chan Li F. , Gulliford Martin C. 
Published: April 2022

Abstract
Background
During the COVID-19 pandemic, people with Down syndrome (DS) have experienced a more severe disease course and higher mortality rates than the general population. It is not yet known whether people with DS are more susceptible to being diagnosed with COVID-19.

Objective
To explore whether DS is associated with increased susceptibility to COVID-19.

Design
Matched-cohort study design using anonymised primary care electronic health records from the May 2021 release of Clinical Practice Research Datalink (CPRD) Aurum.

Setting
Electronic health records from approximately 1400 general practices (GPs) in England.

Participants
8854 people with DS and 34,724 controls matched for age, gender and GP who were registered on or after the 29th January 2020.

Measurements
The primary outcome was COVID-19 diagnosis between January 2020 and May 2021. Conditional logistic regression models were fitted to estimate associations between DS and COVID-19 diagnosis, adjusting for comorbidities.

Results
Compared to controls, people with DS were more likely to be diagnosed with COVID-19 (7.4% vs 5.6%, p ≤ 0.001, odds ratio (OR) = 1.35; 95% CI = 1.23–1.48). There was a significant interaction between people with DS and a chronic respiratory disease diagnosis excluding asthma and increased odds of a COVID-19 diagnosis (OR = 1.71; 95% CI = 1.20–2.43), whilst adjusting for a number of comorbidities.

Conclusion
Individuals with DS are at increased risk for contracting COVID-19. Those with underlying lung conditions are particularly vulnerable during viral pandemics and should be prioritised for vaccinations.
Gasification kinetics of Barapukurian coal char using carbon dioxide and steam reactants
Authors: Shahabuddin M. , Kibria M. A. , Bhattacharya Sankar 
Published: April 2022

AbstractGasification of coal is a cost-effective and sustainable technology to produce syngas and hydrogen with integrated carbon capture and storage system. This study investigates the gasification characteristics of Barapukurian bituminous coal (BBC) char under carbon dioxide (CO2) and steam atmosphere using a thermogravimetric analyser (TGA). The char was prepared through a rapid pyrolysis process in a high temperature entrained flow gasifier at a temperature of 1200 °C. TGA experiments were conducted under atmospheric pressure over 700–1200 °C. Factors affecting intrinsic gasification kinetics, such as diffusion and mass transfer limitations, were optimised before conducting TGA experiments at various temperatures. Three established kinetic models of the volumetric model (VM), grain model (GM) and random pore model (RPM) fitted well with the experimental data. The activation energy determined from CO2gasification was 1.20–1.25 times higher than that of steam gasification, indicating a higher reactivity under steam than CO2. The order of reaction using CO2and steam was determined to be 0.67 and 0.95 at 900 °C.Graphical abstract
Ependymoma: Evaluation and Management Updates
Authors: Rudà Roberta , Bruno Francesco , Pellerino Alessia , Soffietti Riccardo 
Published: April 2022

AbstractPurpose of ReviewTo review state of art and relevant advances in the molecular genetics and management of ependymomas of children and adults.Recent FindingsEpendymomas may occur either in the brain or in the spinal cord. Compared with intracranial ependymomas, spinal ependymomas are less frequent and exhibit a better prognosis. The new WHO classification of CNS tumors of 2021 has subdivided ependymomas into different histomolecular subgroups with different outcome. The majority of studies have shown a major impact of extent of resection; thus, a complete resection must be performed, whenever possible, at first surgery or at reoperation. Conformal radiotherapy is recommended for grade 3 or incompletely resected grade II tumors. Proton therapy is increasingly employed especially in children to reduce the risk of neurocognitive and endocrine sequelae. Craniospinal irradiation is reserved for metastatic disease. Chemotherapy is not useful as primary treatment and is commonly employed as salvage treatment for patients failing surgery and radiotherapy.SummaryStandard treatments are still the mainstay of treatment: the discovery of new druggable pathways will hopefully increase the therapeutic armamentarium in the near future.
The View from Below: How the Neoliberal Academy Is Shaping Contemporary Political Theory
Authors: McKeown Maeve 
Published: April 2022

AbstractContemporary political theory is a game. Individuals compete to publish in ‘top’ journals, to amass greater numbers of publications than their peers; then journal-ranking is combined with number of publications generating scores. The aim is to get the most points. Whoever gets the most points wins: they get the best jobs and the most prestige. This Hunger Games–like contest has serious consequences for people’s lives, determining who can make a living from academia, who will be relegated to the academic precariat or forced out of the profession. In this article, I argue that, aside from the chilling effect that job insecurity and the gamification of academia has on the precariat, these conditions are stifling intellectual creativity, diversity, and dissent in political theory/philosophy. I discuss how privatization and deregulation of universities has created unbearable working conditions, why academics are forced to publish in so-called top journals and why this is detrimental to our field, marginalizing people, topics, and methodologies these journals do not support (which usually align with already structurally marginalized peoples and modes of knowledge). I explain why we are engaging in this game and how it perpetuates itself. I conclude with some suggestions for breaking this vicious cycle, as well as a discussion of who is really benefitting from it, namely, the corporate elites who run many universities and most academic publishers.
Ultra-thin broadband solar absorber based on stadium-shaped silicon nanowire arrays
Authors: Mortazavifar Seyedeh Leila , Salehi Mohammad Reza , Shahraki Mojtaba , Abiri Ebrahim 
Published: April 2022

AbstractThis paper investigates how the dimensions and arrangements of stadium silicon nanowires (NWs) affect their absorption properties. Compared to other NWs, the structure proposed here has a simple geometry, while its absorption rate is comparable to that of very complex structures. It is shown that changing the cross-section of NW from circular (or rectangular) to a stadium shape leads to change in the position and the number of absorption modes of the NW. In a special case, these modes result in the maximum absorption inside NWs. Another method used in this paper to attain broadband absorption is utilization of multiple NWs which have different geometries. However, the maximum enhancement is achieved using non-close packed NW. These structures can support more cavity modes, while NW scattering leads to broadening of the absorption spectra. All the structures are optimized using particle swarm optimizations. Using these optimized structures, it is viable to enhance the absorption by solar cells without introducing more absorbent materials.
Graphical Abstract
Interfacial heat transfer coefficients in cold forging of stainless steel
Authors: Volke Patrick , Groche Peter 
Published: April 2022

AbstractIn numerical simulations of cold forging processes, the heat transfer coefficient has a significant influence on the resulting temperature fields. However, the values determined so far for steel materials are not in the load range of cold forging processes. In this paper, a test stand for the determination of the interfacial heat transfer coefficient under typical loads of metal forming processes is presented. The results are discussed at an example of a cold extrusion forming process. It can be shown that the value increases significantly with increasing contact pressures and are higher compared to values known from literature. The investigations also disclose the influences of lubricants and the mechanical surface treatment on the heat transfer coefficient.
Measuring the Wisdom of the Crowd: How Many is Enough?
Authors: Walter Volker , Kölle Michael , Collmar David 
Published: April 2022

AbstractThe idea of the wisdom of the crowd is that integrating multiple estimates of a group of individuals provides an outcome that is often better than most of the underlying estimates or even better than the best individual estimate. In this paper, we examine the wisdom of the crowd principle on the example of spatial data collection by paid crowdworkers. We developed a web-based user interface for the collection of vehicles from rasterized shadings derived from 3D point clouds and executed different data collection campaigns on the crowdsourcing marketplace microWorkers. Our main question is: how large must be the crowd in order that the quality of the outcome fulfils the quality requirements of a specific application? To answer this question, we computed precision, recall, F1 score, and geometric quality measures for different crowd sizes. We found that increasing the crowd size improves the quality of the outcome. This improvement is quite large at the beginning and gradually decreases with larger crowd sizes. These findings confirm the wisdom of the crowd principle and help to find an optimum number of the crowd size that is in the end a compromise between data quality, and cost and time required to perform the data collection.