bluuebunny/crossref_metadata_2025_split huggingface dataset:
Versatile and Remotely Controllable Light‐Induced Coagulation of Particles Under Flow in a 2D Channel
Authors: Vasquez‐Muñoz Daniela , Rohne Fabian , Sharma Anjali , Lomadze Nino , Santer Svetlana , Bekir Marek 
Published: March 2024

AbstractOn‐demand switch on/off blood clogging is of paramount importance for the survival of mammals, for example as a quick response to seal damage wounds to minimize their bleeding rate. This mechanism is a complex chain process from initiated red blood cell aggregation at the target location (open wound) that quickly seals on a macroscopic scale the damaged flash. Inspired by nature an on‐demand switchable particle clogging mechanism is developed with high spatial resolution down to micrometer size using light as an external non‐invasive stimulation. Particle clogging can be adjusted on demand strong enough to even withstand pressure‐driven fluid flow, additionally building up walls of aggregated particles, which stop the momentum of big particles under shear. The principle relies on a photosensitive surfactant, which induces under light illumination a long‐ranged lateral attractive phoretic‐osmotic activity of silica microparticles forcing them to aggregate. The strength of aggregation and therefore motion reduction or even stop of the particles against the fluid flow depends on the ratio between the aggregation strength and the velocity of the particles. The aggregation strength can be precisely controlled by the applied light intensity and adjusted particle concentration. Increasing both parameters results in a stronger aggregation tendency.
Study on stress–strain relationship and constitutive model of recycled aggregate concrete under axial cyclic compression
Authors: Ge Pei , Song Yang , Zhou Junwen , Ma Xingliang 
Published: March 2024

AbstractThe effects of dry or saturated state, water–cement ratio, coarse aggregate type and steel fiber on the stress–strain relationship of RAC under cyclic loading were studied. What is more, the characteristics of stress–strain curve, plastic strain, stress degradation and stiffness degradation of RAC under cyclic loading were analyzed. The microstructure of RAC was analyzed. Based on the principle of surface energy, the reason for the decrease in compressive strength of wet concrete was analyzed. In addition, the envelope equation of stress–strain curve under cyclic loading, unloading and reloading curve was established. The test results showed that the peak stress of the envelope line of RAC under cyclic loading was affected by dry or saturated state, water–cement ratio and coarse aggregate type, but the addition of steel fiber could reduce the degradation rate of stress and stiffness of RAC after peak strain. The plastic strain accumulation of RAC before and after the peak stress was quite different, but dry or saturated state, water–cement ratio, coarse aggregate type and steel fiber have no obvious influence on the plastic strain accumulation of RAC. The pores and cracks of RAC provide space and channels for the moisture absorption and water absorption. The Weibull–Lognormal statistical distribution envelope model, unloading curve model and reloading curve model established were in good agreement with the experimental curves. The research results provided a reference for the study of the full curve constitutive model of RAC under cyclic loading.
Urinary incontinence in a male dog with an ectopic ureterocoele remnant associated with ipsilateral renal agenesis and cryptorchidism
Authors: Economu Lavinia , McGregor Ombeline , Constantino‐Casas Fernando , Owen Laura 
Published: March 2024

AbstractA 2‐year‐old, male, neutered labrador retriever with a previous diagnosis of left renal agenesis and left cryptorchidism presented for investigation of mild intermittent urinary incontinence. Abdominal ultrasound, intravenous urography and retrograde positive‐contrast urethrocystography were performed, identifying an unusual fluid‐filled structure, confluent with the left side of the prostate gland. Histopathological diagnosis, following surgical excision, was an ectopic ureterocoele remnant. Urinary incontinence temporarily improved following surgery, but subsequently recurred. A presumptive diagnosis of urethral sphincter mechanism incompetence, in addition to the ectopic ureterocoele remnant was given. Dogs with renal agenesis typically have an absent ipsilateral ureter; however, this report demonstrates an ipsilateral ectopic ureterocoele remnant, a condition rarely reported in veterinary medicine. Multiple ipsilateral genitourinary deformities should be suspected and investigated in animals presenting with any urogenital developmental abnormality. Clinical significance of ectopic ureterocoele remnant in male dogs with urinary incontinence should however be carefully evaluated, and other causes (e.g., urethral sphincter mechanism incompetence) should be considered.
Analytical analysis and heat transfer of CuO and MgO engine oil base nanofluid with the influence of dynamic viscosity, magnetic field, and convective boundary conditions
Authors: Rehman Ali , Khun Ma Chau , Rezapour Shahram , Inc Mustafa , Garalleh Hakim A. L. , Muhammad Taseer 
Published: March 2024

AbstractThis research work investigates the semi‐numerical analysis and heat transfer of MHD 2D, Copper Oxide, and Magnesium oxide engine oil base nanofluid with the consider effect of dynamic viscosity and convective boundary conditions (BCs). The convective BCs and the effect of dynamic viscosity on an extensible surface are considered by the flow system. We converted a set of PDEs into NODEs by applying the appropriate transformations. Using the HAM, we solve this dimensionless coupled equation one for temperature and other for velocity. The impact of various parameters for both temperature and velocity are demonstrated, such as the slip parameter, magnetic parameter (MP), Eckert number (EN), PN, and dynamic viscosity. In response to changes in developing factors, the flow features, such as temperature profiles (TPs) and velocity profiles (VPs), are analyzed and simulated using a physical description. The results of this study add to our knowledge of how engine oil‐based nanofluids promote heat transmission and offer practical advice for thermal management and engineering applications.
Soret effect on stability of Darcy problem in a bidispersive porous medium with an exothermic chemical surface reaction
Authors: Afluk Zaid Abbas , Harfash Akil J. 
Published: March 2024

AbstractWe examine a saturated bidispersive porous medium undergoing an exothermic chemical reaction at its lower boundary. The fluid flow within this medium is modelled using the Darcy approach. While the Dufour effect is disregarded, the influence of the Soret effect is thoroughly explored. This problem represents a complex multiphysical phenomenon that integrates fluid dynamics, heat and mass transfer, chemical kinetics and thermoelectric effects. This problem finds relevance in various scientific and engineering applications, including enhanced oil recovery, chemical engineering, environmental engineering and energy systems. We introduce a complementary energy theory alongside a linear theoretical framework for the model. The Chebyshev collocation method is employed to derive both linear and nonlinear results. Our findings reveal that the effect of enhancing the Soret coefficient on the system's stability is contingent upon the boundary conditions and the Lewis number. Specifically, an increase in the Soret coefficient generally stabilises the system during stationary convection. Conversely, in scenarios where oscillatory convection prevails, a higher Soret coefficient tends to destabilise the system.
State-Space Model with One MPP and One Continuous Observation
Authors: Wickramasuriya Dilranjan S. , Faghih Rose T. 
Published: March 2024

AbstractIn this chapter, we will derive the EM algorithm equations for a state-space model having an MPP and a continuous-valued variable as its observations. Before looking at the state-space model itself and the equation derivations, we will again first consider a scenario for where the need for such a model arises. We stated earlier that the human body is comprised of multiple internal sub-systems that are networked with one another.
Kauffman Model with Spatially Separated Ligation and Cleavage Reactions
Authors: Schneider Johannes Josef , Eggenberger Hotz Peter , Jamieson William David , Faggian Alessia , Li Jin , Matuttis Hans-Georg , Caliari Adriano , Weyland Mathias Sebastian , Flumini Dandolo , Diaz Aitor Patiño , Holler Silvia , Casiraghi Federica , Cebolla Sanahuja Lorena , Hanczyc Martin Michael , Barrow David Anthony , Dimitriou Pantelitsa , Castell Oliver , Füchslin Rudolf Marcel 
Published: March 2024

AbstractOne of the open questions regarding the origin of life is the problem how macromolecules could be created. One possible answer is the existence of autocatalytic sets in which some macromolecules mutually catalyze each other’s formation. This mechanism is theoretically described in the Kauffman model. We introduce and simulate an extension of the Kauffman model, in which ligation and cleavage reactions are spatially separated in different containers connected by diffusion, and provide computational results for instances with and without autocatalytic sets, focusing on the time evolution of the densities of the various molecules. Furthermore, we study the rich behavior of a randomly generated instance containing an autocatalytic metabolism, in which molecules are created by ligation processes and destroyed by cleavage processes and vice versa or generated and destroyed both by ligation processes.
Ungleichheiten und Familiengenerationen
Authors: Bosshardt Tamara 
Published: March 2024

ZusammenfassungGemeinsamkeiten stellen ein Gefühl der Verbundenheit zwischen Menschen her, während die eigene Individualität meist erst durch Unterschiede zu Anderen erfahren wird. Einige Unterschiede bleiben gesellschaftlich weitgehend folgenlos. Andere Unterschiede werden hingegen genutzt, um Menschen in Gruppen einzuteilen, welchen Möglichkeiten eröffnet oder verwehrt werden. Welche Unterschiede und Gruppenzugehörigkeiten gesellschaftlich relevant werden, ist dabei nicht naturgegeben, sondern eine Folge von historisch gewachsenen sozialen Machtverhältnissen.
Einleitung
Authors: Lüder Stefan 
Published: March 2024

ZusammenfassungSeit Beginn der akademischen Institutionalisierung der Geschichtswissenschaften im Verlauf des 19. Jahrhunderts bildete der Nationalstaat und dessen Grenzen lange Zeit den grundlegenden Referenzrahmen historischer Forschung. Ab der zweiten Hälfte des 20. Jahrhunderts wurde die Dominanz der Nationalgeschichte und der sogenannte methodologische Nationalismus aber zunehmend infrage gestellt.
Recht und Ordnung im Gorkhā-Staat
Authors: Lüder Stefan 
Published: March 2024

ZusammenfassungIm historiografischen Narrativ der Rāṣṭrīya Itihās herrschte über Jahrzehnte der Konsens, die Zeit der Rāṇā-Dynastie zwischen 1846 und 1950 sei eine „dunkle Episode“ despotischer Willkürherrschaft illegitimer Usurpatoren. Erst ab den späten 1970er und vermehrt schließlich ab den 1980er Jahren wurden in den Geschichtswissenschaften vereinzelt Versuche unternommen, sich differenzierter und weniger wertend mit dieser Zeit auseinanderzusetzen. Dennoch beschränkten sich der Großteil der Publikationen auf Herrscherbiografien, eine deskriptive Ereignisgeschichte oder Themen wie Außen- und Innenpolitik, Verwaltung, Militär, Wirtschaft und Gesellschaft. In den folgenden Kapiteln steht daher die Frage im Fokus, ob sich die Rāṇā-Familie nach ihrer Machtübernahme auch einige Ideen und Praktiken der britischen Zivilisierungsmission aneigneten und für den eignen Machterhalt und -ausbau einsetzten.
Das Erbe der Selbstzivilisierung im Himalaya
Authors: Lüder Stefan 
Published: March 2024

ZusammenfassungIn diesem Buch wurden wichtige Strategien zur Herrschaftslegitimation im überlangen 19. Jahrhundert des Gorkhā-Staates herausgearbeitet. Dabei wurde detailliert dargelegt, auf welch vielschichtige und komplexe Art und Weise die Geschichte des Gorkhā-Staates mit der Geschichte Asiens, Europas und der weiteren Welt verwoben ist. Anhand der exemplarischen Untersuchung der legitimatorischen Diskurse und Praktiken wurde hinreichend belegt und gezeigt, wie sich ändernde lokale, regionale und globale Dynamiken der Staatsbildung zu neuen Formen der Herrschaftslegitimation führen. Es konnte dargelegt werden, wie es den herrschenden Eliten des Gorkhā-Staates im Verlauf des überlangen 19. Jahrhunderts durch die sukzessive Selbstzivilisierung gleichermaßen gelungen war, den internen Machterhalt weitestgehend sicherzustellen und einer potenziell drohenden Fremdbestimmung durch die britische Kolonialmacht zuvorzukommen und dadurch die Souveränität und territoriale Integrität des Gorkhā-Staates zu bewahren. Durch das eigens entwickelte Forschungsdesign wurde in der Praxis demonstriert, wie Global-, Regional- und sogar Nationalgeschichte in der historischen Forschung im Zusammenhang gedacht und auch umgesetzt werden kann, um Tendenzen zu methodologischem Globalismus, Regionalismus und Nationalismus entgegenzuwirken.
Complex hyperbolic representations of $$\textrm{PSL}_2(\textbf{R})$$
Authors: Ruiz Stolowicz Gonzalo Emiliano 
Published: March 2024

AbstractWe construct a two-parameter family of irreducible representations of $$\textrm{PSL}_2(\textbf{R})$$

PSL
2

(
R
)

in the isometry group of the infinite-dimensional complex hyperbolic space. To this end, we introduce the notion of horospherical combination of two representations. Our family then appears as horospherical combinations of two known one-parameter families.
Dynamic pricing using flexible heterogeneous sales response models
Authors: Aschersleben Philipp , Steiner Winfried J. 
Published: March 2024

AbstractWe combine nonparametric price response modeling and dynamic pricing. In particular, we model sales response for fast-moving consumer goods sold by a physical retailer using a Bayesian semiparametric approach and incorporate the price of the previous period as well as further time-dependent covariates. All nonlinear effects including the one-period lagged price dynamics are modeled via P-splines, and embedding the semiparametric model into a Hierarchical Bayesian framework enables the estimation of nonlinear heterogeneous (i.e., store-specific) immediate and lagged price effects. The nonlinear heterogeneous model specification is used for price optimization and allows the derivation of optimal price paths of brands for individual stores of retailers. In an empirical study, we demonstrate that our proposed model can provide higher expected profits compared to competing benchmark models, while at the same time not seriously suffering from boundary problems for optimized prices and sales quantities. Optimal price policies for brands are determined by a discrete dynamic programming algorithm.
Studying the preparation, characterization, and physical properties of NiFe2O4, TiO2, and NiFe2O4/TiO2 nanocomposite
Authors: Ghaffar Dalia N. , Arman M. M. , El-Dek S. I. , Ramadan Rania 
Published: March 2024

AbstractNiFe2O4 nanoparticles have been synthesized using the flash auto-combustion technique, while TiO2 nanoparticles were prepared via sol–gel method. NiFe2O4/TiO2 nanocomposite was obtained through the sonochemical method. Investigated samples have been studied through XRD, FTIR, and FESEM. The crystallite sizes of NiFe2O4, TiO2, and NiFe2O4/TiO2 are 48.37, 25.56, and 32.46 nm, respectively. FTIR analysis was used to look into the materials’ functional groups. The images of FESEM illustrated that the particles were prepared in nanoscale. All samples were good absorbers in the UV spectrum through the wavelengths of 200–350 nm. The energy band gap values of TiO2, NiFe2O4, and NiFe2O4/TiO2 nanocomposite are 3.4, 2.3, and 2.5 eV, respectively, for the indirect transition. The samples’ dielectric characteristics have been investigated and they have a semiconductor like behavior. VSM and the Faraday technique were used to test the materials’ magnetic characteristics.
Image inpainting method based on AU-GAN
Authors: Dong Chuangchuang , Liu Huaming , Wang Xiuyou , Bi Xuehui 
Published: March 2024

AbstractImage inpainting refers to the process of filling in missing regions or removing objects, and has broad application prospects. The rapid development of deep learning has led to new technological breakthroughs in image repair technology, continuously improving the quality of image inpainting. However, when we inpaint large missing regions, the texture and structural features of the image cannot be comprehensively utilized. This leads to blurry images. To solve this problem, we propose an improved dual-stream U-Net algorithm that adds an attention mechanism to the two U-Net networks known as a dual AU-Net network to improve the texture details of the image. In addition, the location code (LC) of damaged regions is added to the network to guide network repair and accelerate the network convergence speed. Least squares GAN (LSGAN) loss is added to the generator’s adversarial network to capture more content details and enhance training stability. The PSNR is 33.93 and the SSIM is 0.931 in the CelebA and Paris datasets. This method has been proven effective when compared to other methods.
Does crural repair with biosynthetic mesh improve outcomes of revisional surgery for recurrent hiatal hernia?
Authors: Panici Tonucci T. , Aiolfi A. , Bona D. , Bonavina L. 
Published: March 2024

Abstract
Background
Laparoscopic revisional surgery for recurrent hiatal hernia (HH) is technically demanding. Re-recurrences are common and esophageal hiatus mesh reinforcement might improve durability of the repair, thus minimizing the risk of re-herniation.

Purpose
Assess safety and effectiveness of simple suture repair (no mesh group) vs. crural augmentation with a biosynthetic absorbable mesh (mesh group) in patients with recurrent HH.

Methods
Observational retrospective study from September 2012 to December 2022. Only patients undergoing redo surgery for previous failures of hiatal hernia repair were enrolled. Surgical failure was defined as symptomatic recurrent HH with > 2 cm of gastric tissue above the diaphragmatic impression at upper gastrointestinal endoscopy and/or swallow study. Gastro-Esophageal Reflux Disease Health-Related Quality of Life (GERD-HRQL) and Short Form-36 (SF-36) questionnaires were used to assess and preoperative and postoperative symptoms and quality of life.

Results
One hundred four patients were included. Overall, 60 patients (57.7%) underwent mesh-reinforced cruroplasty, whereas 44 (42.3%) underwent simple suture cruroplasty. Mesh and no mesh groups had similar baseline demographics, symptoms, prevalence of esophagitis and Barrett’s esophagus, and HH size. A composite crural repair was most commonly performed in the mesh group (38.3% vs. 20.5%; p = 0.07). In addition to cruroplasty, most patients (91%) underwent a Toupet fundoplication. The 90-day postoperative complication rate was 8.6%, and there was no mortality. Recurrent HH was diagnosed in 21 patients (20.2%) with a clinical trend toward reduced incidence in the mesh group (16.7% vs. 25%; p = 0.06). Compared to baseline, there was a statistically significant improvement of median GERD-HRQL score (p < 0.01) and all SF-36 items (p < 0.01).

Conclusions
Laparoscopic revisional surgery for recurrent HH is safe and effective. Selective use of biosynthetic mesh may protect from early recurrence and has the potential to reduce re-herniation in the long-term.
Proteus effect or bodily affordance? The influence of virtual high-heels on gait behavior
Authors: Oberdörfer Sebastian , Birnstiel Sandra , Latoschik Marc Erich 
Published: March 2024

AbstractShoes are an important part of the fashion industry, stereotypically affect our self-awareness as well as external perception, and can even biomechanically modify our gait pattern. Immersive Virtual Reality (VR) enables users not only to explore virtual environments, but also to control an avatar as a proxy for themselves. These avatars can wear any kind of shoe which might similarly affect self-awareness due to the Proteus Effect and even cause a bodily affordance to change the gait pattern. Bodily affordance describes a behavioral change in accordance with the expected constraints of the avatar a user is embodied with. In this article, we present the results of three user studies investigating potential changes in the gait pattern evoked by wearing virtual high-heels. Two user studies targeted female participants and one user study focused male participants. The participants wore either virtual sneakers or virtual high-heels while constantly wearing sneakers or socks in reality. To measure the gait pattern, the participants walked on a treadmill that also was added to the virtual environment. We measured significant differences in stride length and in the flexion of the hips and knees at heel strike and partly at toe off. Also, participants reported to walk more comfortably in the virtual sneakers in contrast to the virtual high-heels. This indicates a strong acceptance of the virtual shoes as their real shoes and hence suggests the existence of a bodily affordance. While sparking a discussion about the boundaries as well as aspects of the Proteus Effect and providing another insight into the effects of embodiment in VR, our results might also be important for researchers and developers.
Informing existing technology acceptance models: a qualitative study with older persons and caregivers
Authors: Felber Nadine Andrea , Lipworth Wendy , Tian Yi Jiao , Roulet Schwab Delphine , Wangmo Tenzin 
Published: March 2024

AbstractNew technologies can help older persons age in place and support their caregivers. However, they need to be accepted by the end-users to do so. Technology acceptance models, such as TAM and UTAUT and their extensions, use factors like performance expectancy and effort expectancy to explain acceptance. Furthermore, they are based on quantitative methods. Our qualitative study investigates factors fostering and hindering acceptance among older persons and their caregivers for a variety of assistive technologies, including wearables, ambient sensors at home with and without cameras and social companion robots. The goal of this paper is twofold: On the one hand, it investigates the factors of technology acceptance models in a qualitative setting. On the other hand, it informs these models with aspects currently overlooked by them. The results reveal that performance expectancy and effort expectancy are relevant for acceptance. We also find that reliability, anxiety around technology and different social aspects have an influence on acceptance of assistive technology in aged care for all end-user groups. Our findings can be used to update current technology acceptance models and provide in-depth knowledge about the currently used factors.