bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis and characterization of BaIrO3-doped YBCO superconducting thin films via TFA-MOD technique
Authors: Bektas Murat , Birlik Isil , Celik Erdal 
Published: May 2024

AbstractHigh-temperature superconducting materials (HTS) are characterized by remarkably high critical current density (Jc) values when exposed to low temperatures and magnetic fields. In the realm of such investigations, various crystalline imperfections, including finely dispersed non-superconducting phases, dislocations, vacancies, grain boundaries, twin boundaries, antiphase boundaries, and insulating regions within grain boundaries, have been recognized as potential sources of pinning centers. However, it is essential to acknowledge that Jc values experience a rapid decline as the temperature rises in the presence of a magnetic field. The primary contributing factors to this decline are attributed to the intrinsic crystalline anisotropy of HTS materials and the thermal fluctuations that prevail at elevated temperatures. Nevertheless, a noteworthy factor in the diminishment of Jc values is the scarcity of efficacious pinning centers. In response to these challenges, a pioneering technology has emerged, revolving around nanostructure engineering for the deliberate creation of artificial pinning centers within HTS materials. In alignment with this approach, the present study endeavors to augment the critical current density and enhance the flux pinning properties of YBa2Cu3O6.56 (YBCO) superconducting films. This augmentation is achieved through the integration of BaIrO3 (BIO) perovskite nanodots, nanorods, or nanoparticles as strategically positioned pinning centers. The films are deposited on a SrTiO3 (STO) substrate employing the Trifluoroacetate Metal–Organic Deposition (TFA-MOD) technique. This research initiative seeks to contribute to the advancement of knowledge regarding the controlled manipulation of artificial pinning centers in HTS materials, particularly focusing on YBCO thin films, with the ultimate goal of enhancing their performance under the influence of elevated magnetic fields.
The relationship between high growth expectations and new venture creation in nascent entrepreneurs: The key role of competitive innovation
Authors: Mohand-Amar Sufia , Fuentes-Fuentes María del Mar , Ruiz-Arroyo Matilde 
Published: May 2024

AbstractNew venture creation is a long and complex process that requires significant personal effort. In this study, we analyse how high growth expectations influence new venture creation in nascent entrepreneurs. In addition, we aim to investigate the impact of competitive innovation on new venture creation through the mechanism established between high growth expectations and entrepreneurial effort. Drawing on a sample of 495 nascent entrepreneurs from PSED II, our results show that high growth expectations indirectly influence the creation of a new firm through nascent entrepreneurial effort. Furthermore, the competitive innovation of nascent entrepreneurs exhibits a positive relationship with new venture creation, facilitated by the relationship between high growth expectations and entrepreneurial effort. These results contribute to a better understanding of the role that high growth expectations play in the nascent entrepreneurial process and how competitive innovation and growth expectations explain the creation of a new firm.
Advancements in the Management of Synchronous Colorectal Liver Metastases: A Comprehensive Review of Surgical, Systemic, and Local Treatment Modalities
Authors: Karaoğlan Beliz Bahar , Öz Diğdem Kuru , Araz Mine Soylu , Akyol Cihangir , Utkan Güngör 
Published: May 2024

Abstract
Purpose of Review
This review addresses the current landscape of colorectal cancer (CRC) with a focus on liver metastases, the third most common cancer globally. It explores recent findings in treatment strategies, emphasizing the dynamic interplay between surgery, systemic chemotherapy, and local therapies for synchronous colorectal liver metastases (CRLMs).

Recent Findings
Highlighting the role of advanced imaging, the review underscores the significance of contrast-enhanced MRI in surgical planning for CRLMs. Surgical resection remains a primary choice for resectable cases, with considerations for oncologic scoring systems and tumor biology. Perioperative systemic chemotherapy plays a pivotal role, especially in conversion therapy for initially unresectable CRLMs. The review also explores various local therapies, including radiofrequency ablation, microwave ablation, stereotactic body radiotherapy, hepatic arterial infusional chemotherapy, selective internal radiation therapy, and transarterial chemoembolization for unresectable cases.

Summary
A comprehensive approach, integrating surgery, systemic chemotherapy, and local therapies, is crucial for managing synchronous CRLMs. Surgical resection and perioperative chemotherapy are key players, guided by considerations of tumor biology and scoring systems. For unresectable cases, local therapies offer viable alternatives, emphasizing the need for tailored treatments. Multidisciplinary collaboration among medical oncologists, surgeons, and radiologists is essential. Ongoing research will refine treatment approaches, while emerging technologies hold promise for further advancements in managing colorectal liver metastases.
Two Sides of the Coin: Unveiling the Socioeconomic Impacts of Land Expropriation on Kigali Residents
Authors: Baffoe Gideon , Manirakiza Vincent , Uwayezu Ernest 
Published: May 2024

Abstract
In a bid to become global cities and centers of innovation, many African cities have embraced rapid physical transformation as the default urban development paradigm. However, this development mantra is exacting a significant social cost. At the core of this physical transformation lies land expropriation, granting governments the power to accumulate land in the name of public interest. Focusing on Kigali as a case study and employing the livelihood asset framework and snowball sampling technique, we examine the impact of land expropriation on asset endowment and the well-being of affected individuals. Results reveal a complex picture. Expropriation dispossesses individuals of their primary productive livelihood assets – physical, financial, and social – leading to impoverishment. This practice not only risks exacerbating the poverty cycle but also undermines Kigali's reputation as a "Model City of Africa." Rebuilding these assets has proved challenging for most, with insufficient compensation often used for subsistence rather than productive activities. To cope with the new life, livelihood diversification emerges as the primary resilience-building strategy. However, the study reveals that expropriation does not always result in the deprivation of productive assets. In cases where individuals receive adequate compensation, expropriation appears to facilitate social mobility through improved housing and investments in profitable ventures. Nonetheless, expropriation, the study concludes, yields significant and varied socio-economic impacts, and addressing these would require integrated and multifaceted measures. We advocate for a revised compensation package by the government to mitigate asset deprivation. Additionally, we recommend government investment in affordable housing, alternative livelihood options, promotion of participatory planning, facilitation of capital acquisition for small-scale businesses, and coaching for affected property owners on investment strategies and livelihood reconstitution post-expropriation.
Lewis Carroll y Apuleyo. Alicia/Psique en el País de las Maravillas: una catábasis sui géneris
Authors: Díaz Gito Manuel Antonio 
Published: May 2024

AbstractThis paper attempts to interpret Lewis Carroll’s Alice’s Adventures in Wonderland as an example of the classical motif of the ‘katabasis’ or descent into the Underworld, a descensus ad Inferos sui generis, conditioned by having its origin as a fairy tale intended for the entertainment of a child reader (descensus ad Terram Mirabilem): this tale would have as its matrix reference the similar vicissitude of Psyche in the ‘tale of the marriage of Cupid and Psyche’ from the Metamorphoses or The Golden Ass by the Roman author Apuleius.
Different reactions of wheat, maize, and rice plants to putrescine treatment
Authors: Rahman Altafur , Kulik Eszter , Majláth Imre , Khan Imran , Janda Tibor , Pál Magda 
Published: May 2024

AbstractPolyamines play an important role in growth and differentiation by regulating numerous physiological and biochemical processes at the cellular level. In addition to their roborative effect, their essential role in plant stress responses has been also reported. However, the positive effect may depend on the fine-tuning of polyamine metabolism, which influences the production of free radicals and/or signalling molecules. In the present study, 0.3 mM hydroponic putrescine treatment was tested in wheat, maize, and rice in order to reveal differences in their answers and highlight the relation of these with polyamine metabolism. In the case of wheat, the chlorophyll content and the actual quantum yield increased after putrescine treatment, and no remarkable changes were detected in the stress markers, polyamine contents, or polyamine metabolism-related gene expression. Although, in maize, the actual quantum yield decreased, and the root hydrogen peroxide content increased, no other negative effect was observed after putrescine treatment due to activation of polyamine oxidases at enzyme and gene expression levels. The results also demonstrated that after putrescine treatment, rice with a higher initial polyamine content, the balance of polyamine metabolism was disrupted and a significant amount of putrescine was accumulated, accompanied by a detrimental decrease in the level of higher polyamines. These initial differences and the putrescine-induced shift in polyamine metabolism together with the terminal catabolism or back-conversion-induced release of a substantial quantity of hydrogen peroxide could contribute to oxidative stress observed in rice.
Building a patient-centred nationwide integrated cardiac care registry: intermediate results from the Netherlands
Authors: Derks Lineke , Medendorp Niki M , Houterman Saskia , Umans Victor A. W. M. , Maessen Jos G. , van Veghel Dennis ,   all Registration Committees of the Netherlands Heart Registration
Published: May 2024

AbstractThis paper presents an overview of the development of an integrated patient-centred cardiac care registry spanning the initial 5 years (September 2017 to December 2022). The Netherlands Heart Registration facilitates registration committees in which mandated cardiologists and cardiothoracic surgeons structurally evaluate quality of care using real-world data. With consistent attendance rates exceeding 60%, a valuable network is supported. Over time, the completeness level of the registry has increased. Presently, four out of six quality registries show over 95% completeness in variables that are part of the quality policies of cardiology and cardiothoracic surgery societies. Notably, 93% of the centres voluntarily report outcomes related to open heart surgery and (trans)catheter interventions publicly. Moreover, outcomes after implantable cardioverter-defibrillator and pacemaker procedures are transparently reported by 26 centres. Multiple innovation projects have been initiated by the committees, signalling a shift from publishing outcomes transparently to collaborative efforts in sharing healthcare processes and investigating improvement initiatives. The next steps will focus on the entire pathway of cardiac care for a specific medical condition instead of focusing solely on the outcomes of the procedures. This redirection of focus to a comprehensive assessment of the patient pathway in cardiac care ultimately aims to optimise outcomes for all patients.
Caregiver-reported barriers to care for children and adults with Williams Syndrome
Authors: Barnhardt Elizabeth W. , Martens Marilee , Andridge Rebecca , Walton Jennifer 
Published: May 2024

AbstractIndividuals with Williams syndrome (WS) may experience a variety of medical, behavioral, and educational concerns. The primary objective of this study was to assess barriers to health care for patients with WS, primarily using the Barriers to Care Questionnaire (BCQ), and to assess whether various demographic factors are correlated with these barriers. A REDCap survey was distributed using the Williams Syndrome Association Research Registry. 319 caregivers of individuals with WS in the United States completed the BCQ. On the BCQ, lower scores indicate more barriers to care. Younger age was associated with lower scores for both the pragmatics and the skills subscales while lower income levels and increased distances to providers knowledgeable about WS were consistently associated with lower total BCQ scores.
The role of Youtube channel characteristics in shaping followers’ purchase intentions and behavioural engagement: the serial mediation of satisfaction and channel loyalty
Authors: Lombardo Salvatore M. 
Published: May 2024

AbstractThe increasing importance of social media influencers, such as youtubers, in the consumer decision-making process has prompted scholars to study this phenomenon. The literature has demonstrated that not only influencer attributes but also content characteristics impact follower behaviours. However, the activity of influencers continues to be predominantly described as a persuasion process aimed at engaging followers in behaviours desired by brands and influencers. Drawing upon e-service and influencer marketing literature, this study aims to broaden the exploration of the influencer category from an e-service perspective by investigating the role played by the evaluation of youtuber content in determining follower satisfaction and behaviours. The results show that four characteristics of a YouTube channel (information quality, entertainment quality, interactivity, and content originality) determine follower satisfaction. Furthermore, satisfaction and channel loyalty serially mediate the effect of the characteristics on behaviours related to the endorsed brand (purchase intention of sponsored brands) and the influencer channel (purchase intention of influencers’ brands, behavioural engagement). This study provides a new perspective on influencers by portraying them as service providers for both followers, serving as content creators, and for brands, acting as communication partners, rather than merely as persuaders. Theoretical and practical implications are discussed.
Keyword-Level Bayesian Online Bid Optimization for Sponsored Search Advertising
Authors: Majima Kaito , Kawakami Kosuke , Ishizuka Kota , Nakata Kazuhide 
Published: May 2024

AbstractBid price optimization in online advertising is a challenging task due to its high uncertainty. In this paper, we propose a bid price optimization algorithm focused on keyword-level bidding for pay-per-click sponsored search ads, which is a realistic setting for many firms. There are three characteristics of this setting: “The setting targets the optimization of bids for each keyword in pay-per-click sponsored search advertising”, “The only information available to advertisers is the number of impressions, clicks, conversions, and advertising cost for each keyword”, and “Advertisers bid daily and set monthly budgets on a campaign basis”. Our algorithm first predicts the performance of keywords as a distribution by modeling the relationship between ad metrics through a Bayesian network and performing Bayesian inference. Then, it outputs the bid price by means of a bandit algorithm and online optimization. This approach enables online optimization that considers uncertainty from the limited information available to advertisers. We conducted simulations using real data and confirmed the effectiveness of the proposed method for both open-source data and data provided by negocia, Inc., which provides an automated Internet advertising management system.
Students’ perspectives on using digital tools in programming courses
Authors: Asgari Mohsen , Tsai Fong-Chun , Mannila Linda , Strömbäck Filip , Sadique Kazi Masum 
Published: May 2024

AbstractAs programming emerges as a critical skill in the digital age and digital tools continue to evolve, understanding students’ perspectives on the integration of such technologies into their education is crucial. This empirical study explores the perspectives of students in Sweden and Taiwan on the use of digital tools in their programming courses. The research employs both qualitative and quantitative methods, including correlation analysis and inductive content analysis, to understand students’ perceptions of the usefulness and challenges involved in the application of different digital technologies. The study reveals the importance of immediate feedback, visualization of concepts, online discussion platforms, and programming tools’ tutorials. However, concerns about potential bias in AI grading systems and the need for more time and guidance to become familiar with new technologies are also highlighted. The study provides valuable insights that can guide the development of more user-centered tools for supporting programming education.
Hausärztlich arbeiten in Deutschland und anderswo – Erfahrungsberichte
Authors: Bayer Robert , Gehrmann Jan , Jansky Bianca , Linde Klaus 
Published: May 2024

Zusammenfassung
Hintergrund
Die Rahmenbedingungen der Primärversorgung unterscheiden sich zwischen einzelnen europäischen Ländern. Ziel der vorliegenden Arbeit war es zu untersuchen, in welcher Hinsicht Systemunterschiede (vorgegebene Faktoren, auf die die einzelnen Hausärzt:innen keinen Einfluss haben) zwischen Ländern die hausärztliche Tätigkeit beeinflussen.

Methoden
Im Rahmen einer qualitativen Interviewstudie wurden 12 Hausärzt:innen, die sowohl in Deutschland als in auch einem anderen Land (Großbritannien, Italien, den Niederlanden oder Norwegen) tätig waren, gefragt, welche wesentlichen Unterschiede sie in ihrer Tätigkeit zwischen Deutschland und dem Vergleichsland wahrgenommen haben. Die Interviews wurden mittels der thematischen Analyse nach Braun und Clarke ausgewertet.

Ergebnisse
Von den Teilnehmer:innen wurden 3 Themenkomplexe diskutiert: 1) Die starke Gatekeeping-Funktion der Hausärzt:innen in Großbritannien, den Niederlanden und Norwegen führt zu einer größeren medizinischen Bandbreite. In Italien wird die Gatekeeping-Funktion durch verschiedene Faktoren geschwächt. 2) Starke Unterschiede in den Vergütungs- und Abrechnungsmechanismen setzen komplexe Anreize, die sich in vielfältiger und zum Teil negativer Weise auf die hausärztliche Versorgung auswirken. Dies war das am meisten diskutierte Thema. 3) Wenn, wie in den Niederlanden und Norwegen, die Ausstellung von Arbeitsunfähigkeitsbescheinigungen keine hausärztliche Aufgabe ist, führt dies zu weniger als unnötig wahrgenommenen Arztbesuchen.

Schlussfolgerung
Aus Sicht der Teilnehmer:innen sind die Systemunterschiede zwischen den untersuchten Ländern groß und selbst kleinere Regulierungsdetails können erhebliche Auswirkungen auf die hausärztliche Arbeit haben.
Hegel's Theory of Finite Cognition and Marx's Critique of Political Economy
Authors: Ninos Giannis 
Published: May 2024

Abstract
The article examines the role of Hegel's theory of finite cognition in Marx's critique of classical political economy. I argue that Hegel's distinction of finite cognition between analytic and synthetic in the Science of Logic constitutes the methodological framework through which Marx delineates the different stages of the development of political economy. Focusing on the Grundrisse, I reveal the Hegelian influence behind Marx's statements on previous political economists’ methods. Thus, Marx's immanent critique of the classical political economy is construed as undertaken from the level of the systematic dialectical method of Capital, and is modelled on Hegel's immanent critique of analytic and synthetic cognition from the perspective of absolute cognition. In this context, and focusing on Marx's critique of Ricardo's method, I argue that the latter's limitations are associated with the deficiencies of synthetic cognition as presented by Hegel. Therefore, the article sheds light on an important yet underexplored topic of the Hegel-Marx relationship. By indicating the centrality of Hegel's theory of finite cognition in Marx's methodological underpinnings, the article provides a new perspective on Hegel-Marx scholarship.
Eating out of home in Portugal: characterisation and effects on dietary intake
Authors: Silva Mariana , Rodrigues Sara Simões Pereira , Correia Daniela Macedo , Rei Mariana Correia Castro , Severo Milton , Costa Ana Isabel Almeida , Torres Duarte Paulo Martins , Lopes Carla Maria Moura 
Published: May 2024

AbstractThis cross-sectional study aims to describe and compare energy, nutrient intake and food consumption according to eating location and by age groups using data from the National Food, Nutrition and Physical Activity Survey (IAN-AF 2015/2016). Dietary intake was estimated by two non-consecutive days of food diaries (children)/24-h recalls (other age groups), and four eating location categories were defined according to the proportion of meals consumed at out-of-home locations:Home(at least 80 % of meals at home),Other Homes,School or WorkandRestaurants and Other Places. The majority of meals (69·1 %) were consumed at home. Meals were also often taken at school by children and adolescents and in restaurants and similar outlets by adults and elderly. Children and adolescents in theSchool or Workcategory ate more fruit, vegetables and pulses and cereals and starchy tubers, whereas adults in this category ate more red and processed meats, sugar-sweetened beverages and sweets. Compared withHomecategory,Restaurants and Other Placeswas associated with worse diet adequacies among children (β= –1·0; 95 % CI = –2·0, −0·04), adolescents: (β= –2·4; 95 % CI = –3·2, −1·5) and adults (β= –1·3; 95 % CI = –1·6, −1·0) reflecting higher intakes of energy, fat,trans-fatty acids and SFA, and Na. The elderly consumed more free sugars and fat when eating out of home in general. Overall, findings reflect important variation in nutrient profiles by eating location, with meals taken at school or work contributing to higher consumption of nutrient-dense foods and those taken in restaurants and other similar settings implying higher consumption of energy-dense foods.
Repurchases for Price Impact: Evidence from Fragile Stocks
Authors: Massa Massimo , Schumacher David , Wang Yan 
Published: May 2024

Abstract
We highlight an important but overlooked characteristic of financial fragility: “Fragile” stocks command higher liquidity. This reduces their sensitivity to corporate actions with price impact and affects the firms’ incentives to engage in such actions. We show that fragile firms have lower share repurchases, issue more equity, and invest more. We establish causality by relating changes in corporate actions to exogenous changes in fragility induced by mergers of asset managers. Our results suggest that financial fragility has direct but unexpected real implications for corporate actions.