bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mixing is easy: New insights for cosmochemical evolution from pre-stellar core collapse
Authors: Bhandare Asmita , Commerçon Benoît , Laibe Guillaume , Flock Mario , Kuiper Rolf , Henning Thomas , Mignone Andrea , Marleau Gabriel-Dominique 
Published: May 2024

Context. Signposts of early planet formation are ubiquitous in substructured young discs. Dense, hot, and high-pressure regions that formed during the gravitational collapse process, integral to star formation, facilitate dynamical mixing of dust within the protostellar disc. This provides an incentive to constrain the role of gas and dust interaction and resolve potential zones of dust concentration during star and disc formation stages.
Aims. We explore whether the thermal and dynamical conditions that developed during protostellar disc formation can generate gas flows that efficiently mix and transport the well-coupled gas and dust components.
Methods. We simulated the collapse of dusty molecular cloud cores with the hydrodynamics code PLUTO augmented with radiation transport and self-gravity. We used a two-dimensional axisymmetric geometry and followed the azimuthal component of the velocity. The dust was treated as Lagrangian particles that are subject to drag from the gas, whose motion is computed on a Eulerian grid. We considered 1, 10, and 100 µm-sized neutral, spherical dust grains. Importantly, the equation of state accurately includes molecular hydrogen dissociation. We focus on molecular cloud core masses of 1 and 3 M⊙ and explore the effects of different initial rotation rates and cloud core sizes.
Results. Our study underlines mechanisms for the early transport of dust from the inner hot disc regions via the occurrence of two transient gas motions, namely meridional flow and outflow. The vortical flow fosters dynamical mixing and retention of dust, while the thermal pressure driven outflow replenishes dust in the outer disc. Notably, these phenomena occur regardless of the initial cloud core mass, size, and rotation rate.
Conclusions. Young dynamical precursors to planet-forming discs exhibit regions with complex hydrodynamical gas features and high-temperature structures. These can play a crucial role in concentrating dust for subsequent growth into protoplanets. Dust transport, especially, from sub-au scales surrounding the protostar to the outer relatively cooler parts, offers an efficient pathway for thermal reprocessing during pre-stellar core collapse.
Crossing Borders: 95. Jahresversammlung der Deutschen
Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie vom 8. bis
11. Mai 2024 in Essen
Authors: Lang Stephan 
Published: May 2024

Liebe Kolleginnen und Kollegen,liebe Leser,kontinuierlich entwickeln wir in unserem Fachgebiet innovative Lösungen und
Behandlungskonzepte für unsere Patientinnen und Patienten. Hierfür ist die
fachübergreifende Zusammenarbeit elementar wichtig. Das Tagungsmotto „Crossing
Borders: interdisziplinär, international, interaktiv“ der 95. Jahresversammlung
der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und
Hals-Chirurgie betont die Relevanz von fächerübergreifender Kooperation und
globalem Austausch. In diesem Jahr finden erstmals Joint Meetings mit der
European Laryngological Society (ELS) und der Rhinoplasty Society of Europe
(RSE) statt. Ebenso sind die American Academy of Otolaryngology – Head and Neck
Surgery (AAO-HNS) und die Confederation of European Otorhinolaryngology – Head
and Neck Surgery (CEORL-HNS) in das wissenschaftliche Programm involviert. Die
interdisziplinär gestalteten Referate bieten Einblicke in neueste Entwicklungen
u. a. auf dem Gebiet der Kopf- und Hals-Onkologie, Schädelbasis- und
Orbitachirurgie. Sie stellen eine großartige Gelegenheit dar, eigenes Wissen zu
erweitern und sich über die neuesten Erkenntnisse auszutauschen.
Rekonstruktive Chirurgie des laryngo-trachealen
Übergangs
Authors: Sittel Christian , Koitschev Assen , Schön Carola , Reiter Karl 
Published: May 2024

ZusammenfassungDer laryngotracheale Übergang ist eine anatomische Region mit
pathophysiologischen Besonderheiten. Vorliegende Übersichtsarbeit stellt
Krankheitsbilder und Fehlbildungen vor, die sich im Kindes- und Jugendalter als
auch bei Erwachsenen prädilektiv an dieser Lokalisation manifestieren. Das
diagnostische Vorgehen wird erörtert. Die Möglichkeiten der operativen
Rekonstruktion werden in Abhängigkeit von Pathologie und Lebensalter des
Patienten dargestellt.
Interdisziplinäre Therapie der Erkrankungen der
Orbita
Authors: Eckstein A , Welkoborsky H.-J. 
Published: May 2024

ZusammenfassungDie Diagnostik und Therapie von Erkrankungen der Orbita ist eine
interdisziplinäre Aufgabe, an der u.a. die Fachdisziplinen HNO-Heilkunde,
Augenheilkunde, Radiologie, Strahlentherapie, MKG-Chirurgie, Endokrinologie und
Pädiatrie beteiligt sind. Der vorliegende Übersichtsartikel stellt eine
Zusammenstellung der häufigsten Erkrankungen dar, mit denen die Fachdisziplinen
HNO-Heilkunde und Augenheilkunde interdisziplinär befasst sind. Es werden die
akuten entzündlichen Erkrankungen incl. orbitaler Komplikationen, die
autoimmunologischen Erkrankungen der Orbita incl. der endokrinen Orbitopathie,
und die tumorösen Erkrankungen besprochen. Neben der Diagnostik und der
Beschreibung der Klinik wird besonderes Augenmerk auf die interdisziplinäre
Therapie gelegt. Abgerundet wird der Übersichtsartikel mit der Beschreibung der
wichtigsten chirurgischen Zugangswege zur Orbita, ihre Indikationen und mögliche
Komplikationen. Die Autoren haben versucht, trotz der knappen Darstellung die
relevanten Fakten zu beschreiben.
Framing retail crime through an environmental criminological lens: insights from Australia and New Zealand
Authors: Townsley Michael , Hutchins Benjamin 
Published: May 2024

AbstractThis article aims to provide insights regarding crime problems affecting the Australian and New Zealand (ANZ) retail sector, focusing primarily on the size and range of criminal behaviours. The research incorporated an online survey of retailers and police statistics. The study finds that the cost of retail crime increased by 28% over the last 4 years, against 25% growth in revenue. It also reveals that shoplifting remains the most significant and costly economic problem facing retailers, followed by employee theft. Additionally, fraud, notably in online channels, will remain a concern for the foreseeable future. We examine potential explanations and interpretations for retail crime through an environmental criminological lens. Increased research and involvement of researchers hold tremendous potential for reducing retail crime and preventing its growth in the future.
The power to transform structures: power complexes and the challenges for realising a wellbeing economy
Authors: Bärnthaler Richard , Novy Andreas , Arzberger Lea , Krisch Astrid , Volmary Hans 
Published: May 2024

AbstractThis article draws on different strands of existing scholarship to provide an analytical framework for understanding the barriers to achieving a well-being economy. It explores the interplay between agential and structural power, where some actor-coalitions can reproduce or transform pre-existing structures. Conversely, these structures are strategically selective, favouring some actors, interests, and strategies over others. Making sense of this interplay between agential and structural power, the article introduces the notion ofpower complexes—time-space-specific actor-coalitions with common industry-related interests and the power to reproduce or transform structures in a given conjuncture. To understand the historical “becoming” of today’s political-economic terrain, the article provides a regulationist-inspired history of the rise, fall, and re-emergence of four power complexes: the financial, fossil, livestock-agribusiness, and digital. They pose significant threats to pillars of a wellbeing economy such as ecological sustainability, equ(al)ity, and democracy. Subsequently, today’s structural context is scrutinised in more detail to understand why certain actors dominate strategic calculations in contemporary power complexes. This reveals strategic selectivities that favour multi- and transnational corporate actors over civil society, labour movements, and public bureaucracies. The article then examines firm-to-state lobbying as a strategy employed by corporate actors within today’s structural context to assert their interests. It presents illustrative cases of Blackstone, BP, Bayer, and Alphabet. Finally, it explores implications and challenges for realising a wellbeing economy based on post-/degrowth visions. It emphasises the double challenge faced by such a wellbeing-economy actor-coalition. On one hand, it has to navigatewithincontemporary modes of regulation that favour corporate strategies of capital accumulation while, on the other, it must confront the self-expanding and extractive logic of capital. In this context, three key challenges are outlined: the need to form unconventional strategic alliances, operate on various spatial dimensions simultaneously, and institutionalise alternatives to firm-to-state lobbying to influence policymaking.
Red propolis extract reduces the lipid oxidation of lamb meat
Authors: Silva João Wilian Dias , de Almeida Vitor Visintin Silva , Oliveira Aline Cardoso , Santos Leandro Soares , Paixão Tarcísio Ribeiro , da Silva Ana Paula Gomes , Santos Laize Vieira , Lima Júnior Dorgival Morais de , Silva Robério Rodrigues 
Published: May 2024

Context Brazilian red propolis stands out for its diverse composition, which includes phenolic compounds whose effects may be similar to those of synthetic feed additives. Aims The objective of this study was to evaluate the effects of red propolis extract on the carcass and meat characteristics of lambs finished under confinement conditions. Methods The meat quality characteristics of the longissimus lumborum muscle were evaluated in 35 Santa Inês lambs, with an average age of 5 months and an initial average body weight of 17.08 ± 2.36 kg (mean ± s.d.), submitted to five distinct treatments (0, 7, 14, 21, 28 mL of red propolis extract/animal.day) over 68 days. Key results The use of propolis did not affect (P > 0.05) the characteristics of the carcass, as well as the chemical composition and cholesterol content. Among the physico-chemical parameters of meat, only the shear force had a quadratic effect (P < 0.05). There was also an exponential effect for lipid oxidation (P < 0.05), where the treatment with propolis had greater antioxidant effect. Meat with a lower content (P < 0.05) of saturated fatty acids was observed in sheep that received extract. There was also an increase (P < 0.05) in the content of monounsaturated acids and consequently an improvement in nutritional quality, atherogenicity and thrombogenicity indexes of desirable fatty acids. Conclusions The red propolis extract improved the lipid profile of the lamb meat. We recommend the inclusion of 7 mL red propolis extract/animal.day (or 59.50 mg total flavoloids/animal.day) in the diet of lambs finished under confinement conditions. Implications The red propolis extract proved to be a viable alternative as a natural feed additive.
Electron wave and quantum optics in graphene
Authors: Chakraborti Himadri , Gorini Cosimo , Knothe Angelika , Liu Ming-Hao , Makk Péter , Parmentier François D , Perconte David , Richter Klaus , Roulleau Preden , Sacépé Benjamin , Schönenberger Christian , Yang Wenmin 
Published: May 2024

Abstract
In the last decade, graphene has become an exciting platform for electron optical experiments, in some aspects superior to conventional two-dimensional electron gases (2DEGs). A major advantage, besides the ultra-large mobilities, is the fine control over the electrostatics, which gives the possibility of realising gap-less and compact p-n interfaces with high precision. The latter host non-trivial states, e.g. , snake states in moderate magnetic fields, and serve as building blocks of complex electron interferometers. Thanks to the Dirac spectrum and its non-trivial Berry phase, the internal (valley and sublattice) degrees of freedom, and the possibility to tailor the band structure using proximity effects, such interferometers open up a completely new playground based on novel device architectures. In this review, we introduce the theoretical background of graphene electron optics, fabrication methods used to realise electron-optical devices, and techniques for corresponding numerical simulations. Based on this, we give a comprehensive review of ballistic transport experiments and simple building blocks of electron optical devices both in single and bilayer graphene, highlighting the novel physics that is brought in compared to conventional 2DEGs. After describing the different magnetic field regimes in graphene p-n junctions and nanostructures, we conclude by discussing the state of the art in graphene-based Mach–Zender and Fabry–Perot interferometers.
Magnetic phases of XY model with three-spin terms: interplay of topology and entanglement
Authors: Malakar Rakesh Kumar , Ghosh Asim Kumar 
Published: May 2024

Abstract
Magnetic and topological properties along with quantum correlations in terms of several entanglement measures have been investigated for an antiferromagnetic (AFM) spin-1/2 XY model in the presence of transverse magnetic field and XZX−YZY type of three-spin interactions. Symmetries of the spin Hamiltonian have been identified. Under the Jordan–Wigner transformation, the spin Hamiltonian converted into spinless superconducting model with nearest neighbor (NN) hopping and Cooper pairing terms in addition to next NN Cooper pairing potential. Long range AFM order has been studied in terms of staggered spin–spin correlation functions, while the topological orders have been characterized by winding numbers. Magnetic and topological phase diagrams have been prepared. Faithful coexistence of magnetic and topological superconducting phases is found in the entire parameter regime. Boundaries of various quantum phases have been marked and positions of bicritical points have been identified.
Blind cyclostationary fault feature extraction in rolling bearings: a dual adaptive filtering approach
Authors: Sun Ruo-Bin , Su Yufeng , Yang Zhi-Bo , Chen Xuefeng 
Published: May 2024

Abstract
Extracting cyclostationary features from vibration signals is one of the most effective approaches in bearing fault diagnosis. However, current methods require prior knowledge of cycle-frequencies or other statistical information, which constrains their applicability across various scenarios. In this paper, we introduce a novel dual adaptive filtering method, incorporating cycle-frequency estimation to solve the existing problem. The method firstly employs an adaptive line enhancer (ALE) to isolate the first-order cyclostationary signal, thereby the cycle-frequencies can be effectively detected using an exhaustive estimation technique. Subsequently, an adaptive frequency-shift (FRESH) filter is further applied to extract the second-order cyclostationary features from the residual components. The proposed method successfully overcomes the challenge of separating cyclostationary signals without prior knowledge and can be tailored to real-time application scenarios. Besides, the approach distinguishes between the two cyclostationary signal types, effectively resolving any aliasing concerns inherent in their statistical characteristics. The effectiveness of the method is verified through simulation, experiments, and engineering data analysis. It is demonstrated that the method significantly enhances diagnostic accuracy and is more suitable for early fault diagnosis of rolling bearings by estimating spectral coherence on the extracted signals.
4D printing of fiber-reinforced auxetic structures: the building blocks: a review
Authors: Karima Bouguermouh , Habibi Mohamed , Laperrière Luc 
Published: May 2024

Abstract
Four-dimensional (4D) printing has recently received much attention in the field of smart materials. It concerns using additive manufacturing to obtain geometries that can change shape under the effect of different stimuli. Such a technique enables the fabrication of 3D printed parts with the additional functionality of scalable, programmable, and controllable part shapes over time. This review provides a comprehensive examination of advances in the field of 4D printing, emphasizing the integration of fiber reinforcement and auxetic structures as crucial building blocks. The incorporation of fibers enhances structural integrity, while auxetic design principles contribute unique mechanical properties, such as negative Poisson’s ratio and great potential for energy absorption due to their specific deformation mechanisms. Therefore, they present potential applications in aerospace, drones, and robotics. The objective of this review article is first to describe the distinctive properties of shape memory polymers, auxetic structures, and composite (fiber-reinforced) materials. A review of applications that use combinations of such materials is also presented when appropriate. The goal is to get a grip on the delicate balance between the different properties achievable in each case. The paper concludes by describing recent advances in 4D printing of fiber-reinforced auxetic structures.
Comments on the article ‘M.O. Katanaev, Complete separation of variables in the geodesic Hamilton-Jacobi equation in four dimensions, Physica Scripta (2023), 98, 104001’
Authors: Obukhov V V , Osetrin K E , Shapovalov A V 
Published: May 2024

Abstract
The present note is a feedback on the article by M.O. Katanaev in Physica
Scripta (2023, 98, 104
001), where, in our opinion, a distorted view of the classical theory of separation of variables in the Hamilton-Jacobi equation is given. We show that the metrics given in this paper, addmiting separation of variables, are special cases of V.N. Shapovalov metrics (Siberian Mathematical Journal, 1979, 20, 790), finally obtained in the 70s of the last century. The results of the article in question, unlike the original ones, do not have scientific novelty and contain omissions and incorrect statements.
Density dependent constitutive model for Bi-2212 powder compression deformation
Authors: Liu Xueqian , Gao Yang , Li Heng , Yang Yanfeng , Zhang Shengnan , Jiang Lang , Zhang Yifan , Hao Qingbin , Li Jianfeng , Li Chengshan , Zhang Pingxiang 
Published: May 2024

Abstract
Bi-2212 HTS materials are fabricated into multi-filamentary wires via powder-in-tube (PIT) method followed by proper heat treatment to obtain superconductivity, but how to predict the large compression deformation behaviors of the Bi-2212 powder is critical to design the processing of the Bi-2212 HTS wire. Drucker Prager/Cap (DPC) model was the most commonly used model for powders including Bi-2212 with soil-like mechanical behavior to consider its shear failure as well as hydrostatic compression. However, the parameters for DPC Cap evolve with densities change and the original model is inadequate to precisely describe the densification process of Bi-2212 powder with large strain. In this study, the modified DPC model with density dependent parameters was introduced for Bi-2212 powder compressions by measuring the failure strength and hydrostatic compressive behavior under different density states. The DPC yield surface was plotted with an evolution trend of non-linear outward expansion with density increased. FEM model of uniaxial compression based on the as-introduced model was built with subroutine VUSDFLD applied. The distribution of Mises stress and relative density were analyzed. The axial stress-density curve for FEM and experimental results were normalized and quantitively evaluated by Mean Square Error (MSE). The introduced model shows good convergence and could match the experimental results well with normalized MSE of 0.000207 and Root Mean Square Error (RMSE) of 0.0144, indicating the mean error percentage of 1.44%. The model introduced in this article provides supports toward large strain deformation simulation of Bi-2212 powder.
A GaN-based SOI plasmonic nanolaser design with high-output power
Authors: Kadhim Nawres M , Vahed Hamid , Soofi Hadi 
Published: May 2024

Abstract
Due to its unique optical and electrical properties, gallium nitride (GaN) exhibits great promise for nanolaser cavities. These characteristics include high electron mobility, wide bandgap energy, and a high refractive index. Moreover, GaN exhibits remarkable thermal stability, making it appropriate for high-power laser applications. The choice of active medium material can significantly impact the laser’s performance, including its wavelength, output power, and efficiency. This work designed and numerically demonstrated a GaN-WG built-in Si

O

2

substrate with an input and output Si-waveguide nanolaser. These nanolasers lase multi-output wavelengths in both directions (forward and backward) at 1680 and 1750 nm, respectively. The pump power is 800 nm. The GaN-waveguide material, when used in nanolaser cavity design, gives many different advantages, like concentration of the Gaussian envelope and improved polarization depending on rate (PDR). Increasing lasing efficiency by 76.6% in the forward direction and 96.7% in the backward direction. Get a low lasing threshold of approximately 200

μ
W

in the forward direction and 180 μW in the

μ
W

backward direction. Finally, improved the output laser power in both directions (460

μ
W

and 600

μ

W) in the forward and backward directions, respectively.
Microwave irradiation-induced yield enhancement of coconut shell biomass-derived graphene-like material
Authors: Widanarto Wahyu , Wulandari Resi , Rahmawati Dina , Cahyanto Wahyu Tri , Sari Kartika , Effendi Mukhtar , Ghoshal Sib Krishna , Kurniawan Candra 
Published: May 2024

Abstract
This paper reports a new strategy (rapid and selective microwave irradiation) to achieve an improved yield of graphene-like material derived from coconut shell biomass. The influence of various microwave irradiation (MWI) powers (80, 240, and 400 W) treatment on the crystalline structures, morphology, and electrochemical performance of the produced samples was determined and compared with the virgin-untreated specimen. The obtained samples were analyzed using varied analytical techniques. The FESEM images of the irradiated samples revealed the existence of graphene-like morphologies accompanied by some thin and transparent sheets. The sample at 80 W displayed the best quality with the highest yield, improving the carbon content, reducing the oxygen functional groups, and increasing the BET-specific surface area by as much as 1238.48 m2/g. The electrochemical properties of the sample treated at 80 W (optimum MWI power treatment) exhibited rectangular curves against scanning speeds, indicating an ideal capacitive behaviour called electric double-layer capacitance (EDLC). It is asserted that the proposed systematic and eco-friendly approach in obtaining the high-performance graphene-like material at low cost may open up sundry opportunities for practical applications, leading towards sustainable development.