bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the problem of detecting source points acting on a fluid
Authors: Abdelwahed Mohamed , Chorfi Nejmeddine 
Published: November 2023

Abstract
The detection problem of a finite number of source points acting on a steady incompressible fluid flow from overdetermined boundary data was studied. The approach used in this study deals with the topological sensitivity technique. An asymptotic analysis of a prescribed cost function with respect to the domain perturbation was developed. Some numerical results to illustrate the efficiency and robustness of the developed source point detection algorithm were presented.
The Reform of the European Fiscal Rules: In Search of Mechanisms Ensuring Sustainable Debt Levels
Authors: de Haan Jakob , Amtenbrink Fabian 
Published: November 2023

Abstract
Central to the recent European Commission’s proposals for the reform of the current fiscal rules is the introduction of national medium-term fiscal structural plans. The proposed emphasis on compliance with country-specific net expenditure trajectories aimed at government debt sustainability is to be welcomed. However, several details of this expenditure path are either not clear or run the risk of political manipulation. What is more, maintaining the one-size fits all 3 % threshold for the budget balance undermines several of the acclaimed advantages of the proposed new governance system, including that it would be simpler and less pro-cyclical. Furthermore, enforcement under the proposed framework is also unlikely to be stronger than under the current framework. Last, but not least, the proposal does not discuss the need for an EU framework for debt restructuring.
Religious Group Affect and Support for First Amendment Liberties
Authors: Bennett Daniel , Strother Logan 
Published: November 2023

Abstract
The First Amendment guarantees protection for religious exercise in the United States. But for some, the question of who should benefit from these protections seems to hinge on the identity of the religious group seeking these protections. In this article, we explore the extent to which people’s attitudes toward different religious groups affects their support for First Amendment protections as applied to these groups. We also examine whether it is possible to mitigate these effects, asking whether respondents can be primed to consider tolerance when evaluating rights claims, and if so, whether this increases support for rights in general. Our results have important implications for tolerance and rights in a diverse, pluralistic society, and shed light on what the future might hold for public opinion on constitutional rights and liberties.
Wide angle metamaterial absorber for S, C and X band application
Authors: Shukla Pavan Kumar , Gupta Neelesh Kumar , Mishra Achyuta Nand , Sharmila  , Singh Apranjal , Barde Chetan 
Published: November 2023

Abstract
In this article, an angle independent Metamaterial Microwave Absorbers (MMA) is designed and demonstrated. The design consists of two concentric hexagon connected through consolidated resistors. The absorber is imprinted on a metal-backed low cost FR4 dielectric substrate with a thickness of 3.2 mm (λ/0.07) and a dielectric constant of 4.3. The proposed structure exhibits a wide absorption bandwidth ranging from 2.8 to 10.42 GHz with absorptivity above 90 % covering S, C and X Band. In the area of interest, the current and electric field distribution has been examined, for two maximum peaks at a frequency of 3.66 and 9.54 GHz, with maximum absorptivity of 99.99 % and 99.44 % respectively. The presented absorber is examined under different polarization angles for phi and theta variation. The fabricated sheet consists of an array of a unit cell, which is examined inside the anechoic chamber with the help of two horn antennas and VNA. The tested and simulated results are compared and it was found that they are almost similar to each other with little variation due to fabrication tolerance. The presented absorber can be practically used for defence applications for Radar Cross Sections (RCS) reduction.
Portuguese Policy in Sri Lanka as a Reflection of the Emergence of 16th Century International Law
Authors: Amarasinghe Punsara 
Published: November 2023

Abstract
The colonial nature of international law has been a moot point in legal academia, which univocally suggests international law as an imperial instrument. Given these exergies, the question that this paper seeks to examine is how Portuguese encounters in the 16th century Sri Lanka reflects the seeds of international legal system dominated by European interests. The policy espoused by the Portuguese in Sri Lanka during their encounters with the Kotte kingdom raise the initial examples of unequal treaties, exclusion of sovereignty and the adoption of “puppet rulers”. This paper makes a critical inquiry in examining these elements parallel to the development of 16th century international law. The objective of this article lies in examining the trajectories that set the path for Portuguese imperial legitimacy of Kotte kingdom of Sri Lanka through a legal legitimacy. In analysing these historical factors, this article will discuss the emergence of the colonial international law.
Rice husk-based cellulose nanocrystal/poly(vinyl alcohol) composite film for the removal of Cu (II) cation from aqueous solution
Authors: Nguyen Vu Viet Linh , Pham Thanh-Truc , Huynh Nguyen Anh Tuan , Nguyen Van Quy 
Published: November 2023

Abstract
In this study, a nanocomposite film comprising poly(vinyl alcohol) (PVA) and rice husk-derived cellulose nanocrystals (CNC) was introduced as a novel sorbent for removing copper (II) cations. First, CNC was isolated from neat rice husk, and then these particles with many ratios compared to PVA (2, 4, 6, and 10 wt.%) were added to the PVA solution to render the nanocomposite films. The obtained films were evaluated using scanning electron microscopy, Fourier-transform infrared spectroscopy, and water uptake tests. The optimal condition for the sorbent preparation was 10 wt.% of CNCs to PVA. The maximum ion adsorption percentage of the PVA/CNC 10 % film reached 55 % after 3 h exposure to 70 ppm Cu (II) ion solution at 25 °C. This research suggested a facile and feasible fabrication method of a nanocomposite film, considered a potential sorbent for the adsorption of copper (II) ions.
Intensity of CLIL exposure and L2 motivation in primary school: evidence from Spanish EFL learners in non-CLIL, low-CLIL and high-CLIL programmes
Authors: Azpilicueta-Martínez Raúl , Lázaro-Ibarrola Amparo 
Published: November 2023

Abstract
Preliminary studies suggest a positive effect of Content and Language Integrated Learning (CLIL) on young learners’ (YLs) L2 motivation. However, much more research with larger samples is necessary to gain a more detailed understanding of the interaction between CLIL exposure and L2 motivation. This study specifically explores the effect of different levels of CLIL exposure on YLs’ L2 motivation. To do so, five measures of motivation were analysed in 895 L1-Spanish YLs of English (mean age = 10.61) comprising a non-CLIL group (n = 289) who had received five EFL weekly lessons; a low-CLIL group (n = 152) who had received five EFL and two CLIL weekly lessons, and a high-CLIL group (n = 454) who had received five EFL and seven CLIL weekly lessons. Normality, Kruskal-Wallis and Dunn-Bonferroni post-hoc tests were conducted. The results revealed significantly higher motivation levels for the high-CLIL learners over the low-CLIL group in all five measures, and higher motivational levels of the high-CLIL group over the non-CLIL group in four of the measures. The study provides evidence of the motivational benefits of high-CLIL exposure and underscores the need for further research on the motivational implications of low-CLIL programmes.
Multi-objective optimization of an endoreversible closed Atkinson cycle
Authors: Gong Zheng , Ge Yanlin , Chen Lingen , Feng Huijun 
Published: November 2023

Abstract
Based on finite-time-thermodynamic theory and the model established in previous literature, the multi-objective optimization analysis for an endoreversible closed Atkinson cycle is conducted through using the NSGA-II algorithm. With the final state point temperature (T
2) of cycle compression process as the optimization variable and the thermal efficiency (η), the dimensionless efficient power (

E

̄

P

${\bar{E}}_{P}$

), the dimensionless ecological function (

E

̄

$\bar{E}$

) and the dimensionless power (

P

̄

$\bar{P}$

) as the optimization objectives, the influences of T
2 on the four optimization objectives are analyzed, multi-objective optimization analyses of single-, two-, three- and four-objective are conducted, and the optimal cycle optimization objective combination is chosen by using three decision-making methods which include LINMAP, TOPSIS, and Shannon Entropy. The result shows that when four-objective optimization is conducted, with the ascent of T
2,

P

̄

$\bar{P}$

descends, η ascends, both

E

̄

$\bar{E}$

and

E

̄

P

${\bar{E}}_{P}$

firstly ascend and then descend. In this situation, the deviation index is the smallest and equals to 0.2657 under the decision-making method of Shannon Entropy, so its optimization result is the optimal. The multi-objective optimization results are able to provide certain guidelines for the design of practical closed Atkinson cycle heat engine.
The overlooked effect of amplitude on within-speaker vowel variation
Authors: Wilson Black Joshua , Hay Jennifer , Clark Lynn , Brand James 
Published: November 2023

Abstract
We analyse variation in vowel production within monologues produced by speakers in a quiet, well-controlled environment. Using principal component analysis (PCA) and generalized additive mixed models (GAMMs), applied to a large corpus of naturalistic recordings of New Zealand English speakers, we show that the first formant of monophthongs varies significantly with variation in a speaker’s relative amplitude. We also find that amplitude variation is used, potentially agentively, to mark the beginning and ending of topical sections within single-speaker monologues. These results have significant methodological consequences for the study of vocalic variation in the context of research on speaker style and language variation and change. While laboratory research has shown a connection between variation in F1 and amplitude in loud environments or with distant interlocutors, this has not been seen in quiet environments with unscripted speech of the sort often used in sociolinguistcs. We argue that taking account of this variation is an important challenge for both within-speaker investigation of stylistic covariation and across-speaker investigation. In the latter case we recommend, as a minimal step, the inclusion of a measure of relative amplitude within regression models.
Novel ruthenium(ii) N-heterocyclic carbene complexes: Synthesis, characterization, and evaluation of their biological activities
Authors: Jawhari Ahmed Hussain , Amri Nasser , Mukhrish Yousef E. , Gatri Rafik , Özdemir Ismail , Gürbüz Nevin , Mansour Lamjed , Koko Waleed S. , Hamdi Naceur 
Published: November 2023

Abstract
A series of ruthenium(ii) complexes with N-heterocyclic carbene (NHC) ligands of the general type (arene)(NHC)Ru(ii)X2 (where X = halide) (3a–3d) were synthesized and characterized in order to compare their antibacterial activities with benzimidazolium salts 2. Our comparison revealed that ruthenium(ii) NHC complexes 3 were more active than benzimidazolium salts 2. Furthermore, the two complexes 3b and 3d had a potent inhibitory effect against acetylcholinesterase with an IC50 of 4.52 and 4.04 g·mL−1 and against tyrosinase with an IC50 of 20.77 and 25.84 g·mL−1, respectively. In addition, screening of benzimidazolium salts (2a–2d) and their ruthenium(ii) complexes (3a–3d) against colon carcinoma cell lines (HCT-116) and hepatocellular carcinoma cell lines (HepG-2) were studied. The obtained results revealed that complex 3a is the most active against vinblastines.
In vitro study of the biphasic calcium phosphate/chitosan hybrid biomaterial scaffold fabricated via solvent casting and evaporation technique for bone regeneration
Authors: Al-Khattaby Lila A. , Soliman Islam E. , Aboelnasr Mohamed A. , Eldera Samah S. 
Published: November 2023

Abstract
Biphasic calcium phosphate (BCP)/chitosan (Cs) composites (BCP/Cs) were assessed for reinforcement in vitro bone regeneration. BCP ceramics have been used to overcome the limitations of single-phase biomaterials. In this study, composite samples were prepared using solvent casting and the evaporation technique. The BCP powder at different concentrations (20, 30, 40, and 50%) was added to the Cs solution to obtain the composite samples. The morphologies and physicochemical properties of the prepared composites were investigated using physical methods. The biocompatibility of composites (BCP/Cs) was studied in vitro by immersion in simulated body fluid. Additionally, the cytotoxicity and viability of the composite samples were evaluated. The results showed that the addition of BCP improves the apatite-forming ability and enhances the bioactivity and biomineralization of the BCP/Cs composites. The mechanical stability of the composite sample was improved essentially by the strong interaction between BCP and the Cs matrix. In addition, the higher the amount of BCP added (50 wt%), the higher the amount of adsorbed protein, and the suitable bioactivity of composites was enhanced. Furthermore, BCP/Cs composites boosted the cell viability and cell proliferation of normal human osteocyte cells. Hence, BCP/Cs composites could be an excellent alternative to bone implants in tissue engineering applications.
Ritual Sweat Bath in a Cross-Cultural Perspective
Authors: Wójtowicz-Wcisło Marta 
Published: November 2023

AbstractThis article traces differences and similarities in the ritual sweat bath usage through a comparative perspective that includes contemporary practice in Poland and the central and the north American traditions that inform it. I argue that there exist continuity and consistency of representations related to sweat bathing across time and space, which can be identified by the metaphors designating certain elements of the ritual. The bathhouse from a cross-cultural perspective can be considered a sacred and liminal space, a gateway that enables the transcending of ordinary space–time dimension and interaction with primordial creation–destruction forces. Fertility appears as only one aspect of these ambivalent forces. It manifests itself in the main metaphors of the Mother Earth’s womb and death–rebirth process in ritual’s contemporary descriptions in Poland. The similarities in the way the sweat bath experience is conceptualised reveal the influence of particulr elements of the ritual that induce specific bodily sensations, intrinsically related to the human organism conditions.
Bürokratieabbau durch Sunset-Legislation
Authors: Freytag Andreas , Schuhmann Sebastian 
Published: November 2023

ZusammenfassungVor allem bei Vorliegen eines Marktversagens ist ein staatlicher Eingriff nötig und gerechtfertigt. Dieser manifestiert sich in einer Vielzahl von Regeln und Gesetzen, die das Handeln von Marktakteuren einschränken. Die Anzahl der neu eingeführten Gesetze und Vorschriften in Deutschland ist konstant hoch. Nicht immer sind die Regulierungen ökonomisch notwendig. Als Folge ergeben sich für viele Unternehmen Unsicherheiten hinsichtlich der Erfüllung dieser Vorschriften. Ein Bürokratieabbau ist somit dringend nötig. Bisherige Bemühungen sind jedoch ohne umfassenden Erfolg geblieben. Sunset Legislation – also die Etablierung umfassender Evaluations- und Verfallsklauseln in Regulierungen – kann einen wichtigen Beitrag dazu leisten, ineffiziente oder überholte Regulierungen zu beenden oder anzupassen. So können die Regulierungsdichte gesenkt, rechtliche Klarheit geschaffen und Kosten der öffentlichen Verwaltung reduziert werden. Das kann entscheidend für die Bewältigung aktueller politischer Herausforderungen sein, so auch für die Bewältigung der Klimawandels.
Investigation of tripled sine-Gordon equation: Localized modes in multi-stacked long Josephson junctions
Authors: Khan Wajahat Ali , Algahtani Obaid J. , Ali Amir 
Published: November 2023

Abstract
This study systematically examines the behavior of multi-stacked long Josephson junctions (multi-sLJJs) under various magnetic inductances and a variety of drives. To investigate the localized modes in the multi-sLJJs, the tripled sine-Gordon equation (sGE) with a phase shift formation recognized as 0-

π

\pi

-0 junction is analyzed. The amplitude equations are derived through asymptotic analysis. It is revealed that synchronized oscillations occur in the multi-sLJJs under both strong and weak couplings; however, the system experiences exponential decay in the absence of external drives. The stack naturally exhibits damping due to the energy produced by the oscillating mode through radiation, which arises from the higher harmonic excitation introduced into the system. It is observed that when an AC drive is present, the system exhibits synchronous oscillations for both strong and weak inductances but eventually becomes stable. However, for parametric drives under both coupling conditions, the system experiences exponential decay. Our findings suggest that weak coupling renders parametric drives ineffective. Nevertheless, numerical simulations demonstrate that a large driving amplitude induces oscillations in the system and causes it to approach a steady position under strong coupling.
Automated quantitative microstructural analysis using the open-source server-client platform OMERO
Authors: Friedmann V. , Bellmer M. , Antons R. , Hafok H. 
Published: November 2023

Abstract
OpenMicroscopyEnvironment Remote Objects (OMERO) is an open-source client-server system for archiving, visualizing and analyzing image data and associated meta-data in a repository and making the data usable in a database [1]. For this paper, OMERO has been studied as an image data repository and was selected as a central data space for metallography. Based on use cases examples from the Fraunhofer Institute for Mechanics of Materials (IWM), various possibilities of automated microstructural analysis using OMERO will be presented and discussed.
Roles and mandates of spiritual care providers in a context of religious diversity: some consideration inspired by the development of Muslim chaplaincy in Switzerland
Authors: Brandt Pierre-Yves 
Published: November 2023

AbstractThe practice and function of chaplaincy is changing in the pluralistic context of our contemporary societies. The reflections proposed in this article originate from the comparison of three contexts: the canton of Vaud (Switzerland), Quebec and France. It results in a modelling that differentiates the roles and mandates assigned to chaplains according to the modalities taken by three variables: the employer, the mandator, and the beneficiaries of the chaplain’s services. The analysis of the different ways the modalities taken by these three variables shape the activity of the chaplainis extended by prospective considerations on the evolution of the positioning of chaplains in general and of the Muslim chaplaincy in Switzerland more particularly.
Aimé Mpane’s Nude: A Body that Questions
Authors: Cody Steven J. 
Published: November 2023

Abstract
Aimé Mpane is an especially versatile Congolese artist based in Brussels and Kinshasa. This paper examines his Nude (2006–2008), a life-sized sculpture of the idealized male form. Thinking carefully about Mpane’s treatment of the body, his selection of material, and his manipulation of the sculpture’s surface, I argue that Nude operates on an ethical level. The work engages with social conceptions of Black bodies, the history of nudity in western art, and—most interestingly—Frantz Fanon’s theory of embodiment, as presented in Black Skin, White Masks (1952). Nude thus allows us to explore the relationship between a leading artist of the African diaspora and one of the most important critics of the colonial condition. The work also contributes to our increasingly nuanced understanding of art’s place within the wider spheres of post-colonial discourse.
KI-gestütztes Informationsmanagement in der Unikatfertigung
Authors: Jagusch Konrad , Gerds Paul , Knitter Laura , Sender Jan , Flügge Wilko 
Published: November 2023

Abstract
Unternehmen sehen sich zukünftig und aktuell einem Fachkräftemangel gegenüber. Dieser wird zusätzlich durch den demografischen Wandel verstärkt. Umso entscheidender ist es, Wissen der erfahrenen Mitarbeitenden zu konservieren und effizient einzusetzen. Der aufgezeigte Ansatz beschreibt eine Möglichkeit, erfasste Daten mithilfe künstlicher Intelligenz aufzubereiten und für Neuaufträge zu nutzen. Er bildet einen Fortschritt gegenüber dem aktuellen Status quo, da die Anwendung im Kontext der Unikatfertigung präsentiert wird. Der Beitrag beschreibt den theoretischen Ansatz sowie die damit einhergehenden Herausforderungen im praktischen Einsatz.
Eingangsdatenanalyse für thermo-elastische Fehlermodelle
Authors: Brecher Christian , Dehn Mathias , Fey Marcel , Wang Zhongtian 
Published: November 2023

Abstract
Das Ziel der vorgestellten Forschungsarbeit ist die Analyse der Eingangsdaten für die Berechnung der thermo-elastischen Tool Center Point (TCP)-Verlagerung mit künstlichen neuronalen Netzen. Mithilfe einer Korrelationsanalyse und einer Rückwärtselimination wird untersucht, welche Stellenwerte den verschiedenen Eingangsdaten zukommen. Aufbauend auf den in diesem Beitrag vorgestellten Ergebnissen kann in zukünftigen Arbeiten eine fundierte Auswahl der Eingangsdaten erfolgen.
Verkürzte Planungszeiten durch Digitalen Schatten
Authors: Kühn Oliver , Beuß Florian , Sender Jan 
Published: November 2023

Abstract
Volatile Märkte sowie verkürzte Produktzyklen stellen Zulieferer vor Herausforderungen. Um auf diese Änderungen in kurzer Zeit reagieren zu können, muss die Planungsdauer für Restrukturierungsmaßnahmen reduziert werden. In diesem Beitrag wird ein Ansatz zur Erweiterung des Fabrikplanungsprozesses vorgestellt, um den Aufwand abschätzen zu können. Ein Digitaler Schatten dient dabei als Entscheidungsgrundlage für weitere Restrukturierungsmaßnahmen, basierend auf den Daten aus dem Produktionssystem.
ML-Modelle für den intelligenten Werkzeugwechsel
Authors: Junghans Sebastian , Möller Carsten , Hendrik Dege Jan 
Published: November 2023

Abstract
Die Verschleißgrenzen von Fräswerkzeugen dürfen hinsichtlich der Werkstückqualität nicht überschritten werden. Der dafür notwendige Werkzeugwechsel richtet sich häufig nach festen Standzeiten, wodurch variierende Verschleißraten nicht berücksichtigt und optimale Wechselzeitpunkte verpasst werden. In diesem Beitrag wird gezeigt, wie ML-Modelle bei der Entscheidungsfindung für einen Werkzeugwechsel bei variierenden Verschleißraten innerhalb eines definierten Schnittparameterraums genutzt werden können.