bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of calcite on the mechanical, morphological and thermal properties of virgin and recycled thermoplastic copolyester elastomer composites
Authors: Sucu Yunus Emre , Dandan Doğancı Merve 
Published: September 2024

AbstractIn this study, the effects of stearic acid‐coated calcite (CaCO3) were investigated on the mechanical, thermal, and morphological properties of thermoplastic copolyester elastomers (COPE or TPE‐E) and recycled COPEs (R‐COPE). R‐COPE, which consist of process wastes that are qualified as postindustrial recycled (PIR), were physically 100% recycled. The composites (virgin and recycled COPE) containing different concentrations of calcite (5–30 wt%) were prepared by melt compounding. It has been determined that mechanical properties such as impact strength and modulus increase with calcite concentration, while tensile strength decreases at higher concentrations owing to the stronger interfacial relationships between the polymer matrix and filler. Morphological studies revealed a good dispersion of calcite fillers at lower concentrations in the polymer matrix. The final composites obtained from recycled polymer had almost similar mechanical properties compared to virgin ones. This showed that recycled COPE could be used in many areas specifically automotive industry, as it gave results close to its original state with the addition of calcite with decreased cost.Highlights
COPE were melt‐blended with stearic acid‐coated calcite (CaCO3).
Recycled‐COPEs were obtained from the physical recycling of factory production waste.
The mechanical properties such as tensile modulus increased with calcite concentration.
The thermal properties increased with increasing calcite concentration.
R‐COPE composites were obtained without any decrease in properties.
Comprehensive study of Buongiorno nanofluid model for MHD Casson flow on an inclined porous stretching surface with heat source/sink and viscous dissipation
Authors: Sarma Gobburu Sreedhar , Narender Ganji , Govardhan Kamatam 
Published: September 2024

AbstractThe purpose of this investigation is to use a Buongiorno fluid model to examine the characteristics of a magneto hydrodynamic Casson nanofluid flowing over a nonlinear inclined porous stretching surface under the influence of heat source or sink effects and viscous dissipation. By employing similarity transformations, the governing nonlinear partial differential equations are transformed into a set of nonlinear ordinary differential equations, which are numerically solved using Mathematica software. The results are presented in graphical and tabular formats to depict variations in velocity, temperature and concentration profiles. Additionally, numerical results for Nusselt and Sherwood numbers are tabulated. The accuracy and validity of the study's findings are confirmed through comparisons with existing literature. Notably, this investigation reveals that a higher rate of viscous dissipation and heat generation or absorption leads to a lower heat transfer coefficient and a higher mass transfer coefficient.
Two‐dimensional MHD boundary layer flow of a ternary hybrid nanofluid across a stretching sheet with inclined MHD: Numerical approach
Authors: Fiza Mehreen , Abas Syed Arshad , Ullah Hakeem , Akgul Ali , Aljohani Abdulrahman F. , Khan Ilyas 
Published: September 2024

AbstractIncreasing the efficiency of a thermal system is important in a wide variety of technological contexts, such as vehicle cooling systems, power production, microelectronics, heat exchangers, and air conditioning. The current study examines a boundary layer two‐dimensional inclined magnetohydrodynamic flow of a ternary hybrid nanofluid across a stretching sheet that includes nanoparticles. These nanoparticles are combined with water as the base fluid to form a ternary hybrid nanofluid. The present work aims to analyze the impact of several slip conditions utilizing Arrhenius' activation energy along with the binary chemical reaction on the flow profiles. To characterize the model, a system of partial differential equations (PDEs) is utilized. With the assistance of similarity transformations, the given PDEs of the form are converted into ordinary differential equations. The leading equations are subjected to boundary layer theory, and then the system is numerically tackled with the help of the built‐in numerical approach bvp4c. Results obtained from this numerical solution are presented in graphs and tables which are discussed briefly. The results indicate that there is a downward trend in the velocity profile if the enhancement occurs in both the velocity slip and the magnetic component. A lower temperature is achieved through the use of the temperature slip parameters. In addition, it turned out that a rise in the Eckert number caused an upswing in the surface temperature of a sheet. The activation energy escalates the concentration profile, while the Schmidt number and chemical reaction rate both are falls. The Sherwood number improved when the values of Brownian motion and thermophoresis factors enlarged while the local Nusselt number became lower.
Interdisciplinary Collaborations for European Energy Policy and Governance
Authors: Crowther Ami , Foulds Chris , Robison Rosie , Gladkykh Ganna 
Published: September 2024

AbstractThe European Union (EU) has set out ambitious targets to address European sustainability and environmental challenges. As part of this, policies and initiatives focusing on both energy supply and energy demand have been established. Yet, the complexity of enacting the required actions demonstrates the need for interdisciplinary collaboration to inform approaches. The integration of Social Sciences and Humanities (SSH) and the technical sciences (Science, Technology, Engineering and Mathematics (STEM)) provides opportunities to identify policy approaches which challenge the status quo, supporting low-carbon energy transitions. This book includes interdisciplinary recommendations for relevant EU energy strategies—a total of 10 recommendations, split into four parts, are presented. This chapter includes a breakdown of the book’s chapters and its overall narrative. The chapter closes with tips on how to read the book as a whole, as well as the individual chapters it is composed of.
Understand Stakeholder Perceptions and Implementation Possibilities for Energy Efficiency Measures and Policy Through Multicriteria Modelling
Authors: Buylova Alexandra , Larsson Aron , Nasiritousi Naghmeh , Siddiqui Afzal S. 
Published: September 2024

Policy HighlightsTo achieve the recommendation stated in the chapter title, we propose the following:

Stakeholders can be better engaged in energy efficiency decisions through the use of multicriteria models.

Decision-makers should present trade-offs, such as cost and emissions, and combinations of acceptable solutions to various stakeholders such as the public, housing associations, regulatory agencies, and financial institutions.

Decision-makers should adopt a user-centred approach to energy efficiency measures by encouraging stakeholder dialogues around decision-support tools (e.g. multicriteria modelling) to improve understanding of costs and benefits of measures.

Decision-makers should identify opportunities for consensus building and mindset shifts about the wider benefits of energy efficiency measures by emphasising their social considerations.

Using Social Sciences and Humanities (SSH) perspectives can strengthen Science, Technology, Engineering and Mathematics (STEM) led multicriteria models that visualise trade-offs as well as identify plausible conflicts among stakeholders.
Simplify the Uptake of Community Energy by Leveraging Intermediaries and the Use of Digital Planning Tools
Authors: Mey Franziska , Borch Kristian , Bosch Stephan , Ebersbach Benita , Hecht Robert , Holstenkamp Lars , Radtke Jörg 
Published: September 2024

Policy HighlightsTo achieve the recommendation stated in the chapter title, we propose the following:

Ensure the follow-up and implementation of EU policy measures, including by conducting quality assessments and introducing national community energy targets.

Foster institutional allies at local and regional levels.

Provide access to and capacities for using digital planning tools.

Nurture knowledge and method integration across STEM and SSH disciplines to develop practices and tools to effectively implement community-led initiatives.
Facilitate the Development of Energy Literacy Amongst Citizens to Support Their Meaningful Participation in the Energy Transition
Authors: Calver Philippa , Crowther Ami , Brown Claire 
Published: September 2024

Policy HighlightsTo achieve the recommendation stated in the chapter title, we propose the following:

Ensure that citizens have appropriate knowledge to meaningfully participate in the energy transition by providing accessible information that reflects citizens' contexts.

Consider the framing of information to support participation in the energy transition, including the broader impact, and relationships of energy transitions with other aspects of everyday life.

Draw upon existing networks, independent intermediaries, and communication channels to build trust in the information provided.

Bring together Social Sciences and Humanities (SSH) and more technical researchers to explore potential energy futures and the diverse knowledge required for citizens to meaningfully participate in, and benefit from, these energy futures.
Protect the EU’s Digital Energy Infrastructure Against Cyberthreats Through Advanced Technologies, Human Vulnerability Mitigation, and Ethical Practices
Authors: Mersni Amal , Novikau Aliaksandr , Koczan Marcin , Shobole Abdulfetah Abdela 
Published: September 2024

Policy HighlightsTo achieve the recommendation stated in the chapter title, we propose the following:

EU Member States must enforce the implementation of a comprehensive, multi-layered security approach to enhance and strengthen the defence of digital energy systems.

EU Member States must enforce mandatory cybersecurity training programmes to address human vulnerabilities. Energy operators must undertake these programmes to ensure adequate education and promote digital hygiene.

All EU Member States should deploy Artificial Intelligence ethically to improve the sector’s cybersecurity while sharing the technology’s benefits equitably with all stakeholders.

Interdisciplinary approaches, combining Engineering and Social Science insights, can inform recommendations to address complex cybersecurity challenges.
Cosmological correlators with double massive exchanges: bootstrap equation and phenomenology
Authors: Aoki Shuntaro , Pinol Lucas , Sano Fumiya , Yamaguchi Masahide , Zhu Yuhang 
Published: September 2024

Abstract
Using the recently developed cosmological bootstrap method, we compute the exact analytical solution for the seed integral appearing in cosmological correlators with double massive scalar exchanges. The result is explicit, valid in any kinematic configuration, and free from spurious divergences. It is applicable to any number of fields’ species with any masses. With an appropriate choice of variables, the results contain only single-layer summations. We also propose simple approximate formulas valid in different limits, enabling direct and instantaneous evaluation. Supported by exact numerical results using CosmoFlow, we explore the phenomenology of double massive exchange diagrams. Contrary to single-exchange diagrams with ubiquitous Lorentz-covariant interactions, the size of the cubic coupling constant can be large while respecting perturbativity bounds. Because of this property, the primordial bispectrum from double-exchange diagrams can be as large as, coincidentally, current observational constraints. In addition to being sizable on equilateral configurations, we show that the primordial bispectrum exhibits a large cosmological collider signal in the squeezed limit, making the double massive exchanges interesting channels for the detection of massive primordial fields. We propose to decisively disentangle double-exchange channels from single-exchange ones with cosmological observations by exploiting the phase information of the cosmological collider signal, the inflationary flavor oscillations from multiple fields’ species exchanges and the double soft limit in the primordial trispectrum.
Analytic approach for computation of topological number of integrable vortex on torus
Authors: Miyamoto Kaoru , Nakamula Atsushi 
Published: September 2024

Abstract
Detailed structures of vortices on a torus are discovered by performing an analytic method to calculate the vortex number. We focus on analytic vortex solutions to the Chern-Simons-Higgs theory, whose governing equation is the so-called Jackiw-Pi equation. The equation is one of the integrable vortex equations and is reduced to Liouville’s equation. The requirement of continuity of the Higgs field strongly restricts the characteristics and the fundamental domain of the vortices. Also considered are the decompactification limits of the vortices on a torus, in which “flux loss” phenomena occasionally occur.
From higher-spin gauge interactions to Compton amplitudes for root-Kerr
Authors: Cangemi Lucile , Chiodaroli Marco , Johansson Henrik , Ochirov Alexander , Pichini Paolo , Skvortsov Evgeny 
Published: September 2024

Abstract
We develop massive higher-spin theory as a framework for describing dynamics of rotating compact objects, such as Kerr black holes. In this paper, we explore gauge interactions up to quartic order and corresponding Compton amplitudes of higher-spin massive objects coupled to electromagnetism and Yang-Mills theory. Their classical counterparts are known as root-Kerr gauge-theory solutions, whose amplitudes are closely related to those of Kerr black holes. We use three distinct approaches: (i) massive higher-spin gauge symmetry to introduce cubic interactions for all spins and the quartic interactions up to spin 3, which is implemented both off shell and via Ward identities; (ii) a chiral higher-spin approach to construct quartic Lagrangians with correct degrees of freedom to all spins; (iii) on-shell functional patterns before and after taking the classical limit to constrain the Compton amplitudes. As final results, we arrive at simple local formulae for the candidate root-Kerr Compton amplitudes both in the quantum regime and classical limit, to all orders in spin. This is a precursor to the gravitational Kerr case, which is presented in a follow-up paper.
Neutrinoless double beta decay rates in the presence of light sterile neutrinos
Authors: Dekens W. , de Vries J. , Castillo D. , Menéndez J. , Mereghetti E. , Plakkot V. , Soriano P. , Zhou G. 
Published: September 2024

Abstract
We investigate neutrinoless double-beta decay (0νββ) in minimal extensions of the Standard Model of particle physics where gauge-singlet right-handed neutrinos give rise to Dirac and Majorana neutrino mass terms. We argue that the standard treatment of these scenarios, based on mass-dependent nuclear matrix elements, is missing important contributions to the 0νββ amplitude. First, new effects arise from the exchange of neutrinos with very small (ultrasoft) momenta, for which we compute the associated nuclear matrix elements for the decays of 76Ge and 136Xe. These contributions can dominate the 0νββ rate in cases with light sterile neutrinos. The ultrasoft terms are also relevant in the more standard scenario of just three light Majorana neutrinos where they lead to a 10% reduction of the total 0νββ amplitude. Secondly, we highlight the importance of short-range terms associated with medium-heavy sterile neutrinos and provide explicit formulae that can be used in phenomenological analyses. As examples we discuss impact of these new effects in several explicit scenarios, including a realistic 3 + 2 model with two right-handed gauge-singlet neutrinos.
Probing bottom-associated production of a TeV scale scalar decaying to a top quark and dark matter at the LHC
Authors: Kalsi Amandeep Kaur , Kamon Teruki , Kim Seulgi , Lee Jason S. H. , Rathjens Denis , Roh Youn Jung , Thompson Adrian , Watson Ian James 
Published: September 2024

Abstract
A minimal non-thermal dark matter model that can explain both the existence of dark matter and the baryon asymmetry in the universe is studied. It requires two color-triplet, iso-singlet scalars with $$ \mathcal{O}\left(\textrm{TeV}\right) $$
O

TeV

masses and a singlet Majorana fermion with a mass of $$ \mathcal{O}\left(\textrm{GeV}\right) $$
O

GeV

. The fermion becomes stable and can play the role of the dark matter candidate. We consider the fermion to interact with a top quark via the exchange of QCD-charged scalar fields coupled dominantly to third generation fermions. The signature of a single top quark production associated with a bottom quark and large missing transverse momentum opens up the possibility to search for this type of model at the LHC in a way complementary to existing monotop searches.
A New Gauge for Gravitational Perturbations of Kerr Spacetimes I: The Linearised Theory
Authors: Benomio Gabriele 
Published: September 2024

AbstractWe propose a new geometric framework to address the stability of the Kerr solution to gravitational perturbations in the full sub-extremal range $$|a|<M$$

|
a
|
<
M

. Central to our framework is a new formulation of nonlinear gravitational perturbations of Kerr, whose two novel ingredients are the choice of a geometric gauge and non-integrable null frames both tailored to the outgoing principal null geodesics of Kerr. The vacuum Einstein equations for the perturbations are formulated in our gauge as a system of equations for the connection coefficients and curvature components relative to the chosen frames. When renormalised with respect to Kerr, the null structure equations with the form of outgoing transport equations do not possess any derivatives of renormalised connection coefficients on the right hand side. In this work, we derive the linearised vacuum Einstein equations around Kerr in the new framework. The system of linearised gravity exhibits two key structural properties. The first is well-known and consists of the exact decoupling of two gauge invariant linearised quantities in the system, satisfying two decoupled spin $$\pm \, 2$$

±

2

Teukolsky equations. The second is a new, gauge dependent structure in the outgoing transport equations for the linearised connection coefficients inherited from the nonlinear system: Unlike previous works, these equations do not contain any derivatives of linearised connection coefficients on the right hand side and induce a new hierarchy of only outgoing transport equations including all gauge dependent linearised quantities. Our new framework is designed to effectively capture the stabilising properties of the red-shifted transport equations, thereby isolating one of the crucial structures of the problem. Such a feature is suggestive of future simplifications in the analysis. As an illustration, our companion work (Benomio in A new gauge for gravitational perturbations of Kerr spacetimes II: The linear stability of Schwarzschild revisited, 2022) employs the system of linearised gravity and its enhanced red-shifted transport equations, specialised to the $$|a|=0$$

|
a
|
=
0

case, to produce a new simplified proof of linear stability of the Schwarzschild solution. The full linear stability analysis in the full sub-extremal range $$|a|<M$$

|
a
|
<
M

is deferred to future work. As already apparent from (Benomio 2022), our framework will allow to combine the new structure in the transport equations with the elliptic part of the system to establish a linear orbital stability result without loss of derivatives, indicating that the framework may be well suited to address nonlinear stability in the full sub-extremal range $$|a|<M$$

|
a
|
<
M

.
Dynamics of Mean-Field Fermi Systems with Nonzero Pairing
Authors: Marcantoni Stefano , Porta Marcello , Sabin Julien 
Published: September 2024

AbstractWe study the dynamics of many-body Fermi systems, for a class of initial data which are close to quasi-free states exhibiting a nonvanishing pairing matrix. We focus on the mean-field scaling, which for fermionic systems is naturally coupled with a semiclassical scaling. Under the assumption that the initial datum enjoys a suitable semiclassical structure, we give a rigorous derivation of the time-dependent Hartree-Fock-Bogoliubov equation, a nonlinear effective evolution equation for the generalized one-particle density matrix of the system, as the number of particles goes to infinity. Our result holds for all macroscopic times, and provides bounds for the rate of convergence.
Eindrucksvolle Manifestation und unerwarteter Therapieverlauf eines Diabetes mellitus bei einem 22-jährigen Patienten
Authors: Werner Christoph , Schmidt Sebastian , Kellner Christiane , Burghardt Katharina , Reuken Philipp A. , Kloos Christof , Wolf Gunter 
Published: September 2024

Zusammenfassung
Wir berichten über einen 22-jährigen Patienten, der nach einer längeren Remission ohne antidiabetische Therapie bei MODY („maturity onset diabetes of the young“) 12 (Gen ABCC8, nach ACMG-Kriterien Klasse 3) nach akuter Entgleisung und chronischer Hyperglykämie ein gutes Ansprechen auf Glimepirid zeigt. Wir geben einen kurzen Überblick über die pathogenetischen Grundlagen dieser genetischen Erkrankung und wollen das Bewusstsein für diese therapeutisch wichtige Entität schärfen.
Analysis of a global wheat panel reveals a highly diverse introgression landscape and provides evidence for inter-homoeologue chromosomal recombination
Authors: Heuberger Matthias , Bernasconi Zoe , Said Mahmoud , Jung Esther , Herren Gerhard , Widrig Victoria , Šimková Hana , Keller Beat , Sánchez-Martín Javier , Wicker Thomas 
Published: September 2024

Abstract
Key message
This study highlights the agronomic potential of rare introgressions, as demonstrated by a major QTL for powdery mildew resistance on chromosome 7D. It further shows evidence for inter-homoeologue recombination in wheat.

Abstract
Agriculturally important genes are often introgressed into crops from closely related donor species or landraces. The gene pool of hexaploid bread wheat (Triticum aestivum) is known to contain numerous such “alien” introgressions. Recently established high-quality reference genome sequences allow prediction of the size, frequency and identity of introgressed chromosome regions. Here, we characterise chromosomal introgressions in bread wheat using exome capture data from the WHEALBI collection. We identified 24,981 putative introgression segments of at least 2 Mb across 434 wheat accessions. Detailed study of the most frequent introgressions identified T. timopheevii or its close relatives as a frequent donor species. Importantly, 118 introgressions of at least 10 Mb were exclusive to single wheat accessions, revealing that large populations need to be studied to assess the total diversity of the wheat pangenome. In one case, a 14 Mb introgression in chromosome 7D, exclusive to cultivar Pamukale, was shown by QTL mapping to harbour a recessive powdery mildew resistance gene. We identified multiple events where distal chromosomal segments of one subgenome were duplicated in the genome and replaced the homoeologous segment in another subgenome. We propose that these examples are the results of inter-homoeologue recombination. Our study produced an extensive catalogue of the wheat introgression landscape, providing a resource for wheat breeding. Of note, the finding that the wheat gene pool contains numerous rare, but potentially important introgressions and chromosomal rearrangements has implications for future breeding.