bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perceptions of vulnerability and precariousness of Airbnb workers in Portugal
Authors: Roque Isabel , Boavida Nuno 
Published: December 2024

Abstract
Platform work in the tourism sector has grown exponentially since 2014. Airbnb was a driving force for the Portuguese economy after the 2008 crisis. During the COVID-19 pandemic, tourism was cancelled, and most workers did not have access to social benefits, causing a potential disruption in their careers. There is a gap in research regarding the analysis of the occupational trajectories of Airbnb workers and the effects of the 2008 crisis and the pandemic on their lives. Between 2020 and 2021, in-depth interviews were conducted with Airbnb workers and activists in order to analyse their occupational trajectories, collective voice and business models. The article concludes that, while Airbnb changed the tourism landscape, those who work for it remain precarious.
Does providing atrial fibrillation patients, after pulmonary vein isolation, with a 1-lead ECG device relieve the emergency department?—A historically controlled prospective trial
Authors: Selder Jasper L. , Mulder Mark J. , van de Vijver Willem R. , Croon Philip M. , Wentrup Leontine E. , van der Pas Stéphanie L. , Twisk Jos W. R. , Tulevski Igor I. , Van Rossum Albert C. , Allaart Cornelis P. 
Published: December 2024

Atrial fibrillation (AF) is a prevalent and clinically significant cardiac arrhythmia, with a growing incidence. The primary objectives in AF management are symptom relief, stroke risk reduction, and prevention of tachycardia-induced cardiomyopathy. Two key strategies for rhythm control include antiarrhythmic drug therapy and pulmonary vein isolation (PVI), with PVI being recommended for selected patients. Even though PVI is effective, post procedural health care utilization is high, contributing to emergency department (ED) overcrowding, which is a global healthcare concern. The use of remote rhythm diagnostics, such as a 1-lead ECG device (KM), may mitigate this issue by reducing ED visits and facilitating more plannable AF care. Objective: This study aimed to assess whether providing AF patients with a 1-lead ECG device for 1 year after PVI would reduce ED utilization compared to standard care. Additionally, the study assessed whether this intervention would render AF care more plannable by reducing the incidence of unplanned cardioversions. Methods: A historically controlled, prospective clinical trial was conducted. The intervention group were patients undergoing PVI for AF between September 2018 and August 2020, all patients in this group received a 1-lead ECG device for 1 year for remote rhythm monitoring. The historical control group were patients undergoing PVI between January 2016 and December 2017; these patients did not receive a 1-lead ECG device. Data on ED visits, planned and unplanned cardioversions, and outpatient contacts in the year after the PVI were collected for both groups. Results: The study included 204 patients, 123 in the 1-lead ECG group and 81 in the standard care group. There was no statistically significant difference in the number of all-cause ED visits (63 vs 68 per 100 pts, respectively, p = 0.72), ED visits for possible rhythm disorders, or ED visits for definite rhythm disorders between the two groups. However, the 1-lead ECG group demonstrated a higher proportion of planned cardioversions compared to unplanned ones (odds ratio 4.9 [1.57–15.85], p = 0.007). Conclusion: Providing patients with AF following PVI with a 1-lead ECG device did not result in a statistically significant reduction in ED visits during the first year. However, it did improve the management of recurrent AF episodes by substituting unplanned cardioversions with scheduled ones.
Clinical Trials Registration Number NCT06283654.
Nutri-Score labelling system – selected legal aspects
Authors: Sokołowski Łukasz Mikołaj 
Published: December 2024

The subject under consideration is the voluntary Nutri-Score labelling system called FOP (front-of-pack) which is an increasingly common method of labelling the nutritional value on the front of the packaging of food products. While it has found recognition in many EU Member States, its use continues to provoke much controversy and doubt. The Nutri-Score system is used quite extensively not only in Poland, but also throughout the EU. Many Member States have regulated its use by law. The aim of this paper is to evaluate the Nutri-Score system and to determine whether it meets the requirements of food law in terms of labelling foodstuffs and, in particular, whether it is likely to mislead consumers. In the author’s opinion, constant modification and updating of the system that has been going on has already allowed for at least some elimination of the earlier reservations. It is also recommended to adapt the Nutri-Score system to the requirements of food law, to develop a modified FOP labelling systems, or consider a development of a completely new solution. However, simplifying the nutritional assessment of food products to a single symbol so that it is clear, not misleading, and respects the generally applicable requirements of food law is extremely difficult to do.
On Kirchhoff-Schrödinger-Poisson-type systems with singular and critical nonlinearity
Authors: Yang Baoling , Zhang Deli , Liang Sihua 
Published: December 2024

Abstract
This work focuses on the Kirchhoff-Schrödinger-Poisson-type system with singular term and critical Sobolev nonlinearity as follows:

−

a
+
b

∫

Ω

∣

∇

u
∣

p

d
x

Δ

p

u
+
ϕ

∣
u
∣

q
−
2

u
=
λ

u

−
γ

+

∣
u
∣

p

∗

−
2

u

in

Ω
,

−
Δ
ϕ
=

∣
u
∣

q

in

Ω
,

u
=
ϕ
=
0

on

∂
Ω
,

\left\{\begin{array}{ll}-\left(a+b\mathop{\displaystyle \int }\limits_{\Omega }{| \nabla u| }^{p}{\rm{d}}x\right){\Delta }_{p}u+\phi {| u| }^{q-2}u=\lambda {u}^{-\gamma }+{| u| }^{{p}^{\ast }-2}u\hspace{1.0em}& \hspace{0.1em}\text{in}\hspace{0.1em}\hspace{0.33em}\Omega ,\\ -\Delta \phi ={| u| }^{q}\hspace{1.0em}& \hspace{0.1em}\text{in}\hspace{0.1em}\hspace{0.33em}\Omega ,\\ u=\phi =0\hspace{1.0em}& \hspace{0.1em}\text{on}\hspace{0.1em}\hspace{0.33em}\partial \Omega ,\end{array}\right.

where

Ω

\Omega

is a bounded domain in

R

N

{{\mathbb{R}}}^{N}

with Lipschitz boundary

∂
Ω

\partial \Omega

,

0
<
γ
<
1

0\lt \gamma \lt 1

,

Δ

p

u
=
div

(

∣

∇

u
∣

p
−
2

∇

u

)

{\Delta }_{p}u={\rm{div}}\left({| \nabla u| }^{p-2}\nabla u)

,

1
<
p
<
q
<

p

*

2

1\lt p\lt q\lt \frac{{p}^{* }}{2}

,

p

*

=
N
p
⁄
N
−
p

{p}^{* }=Np/N-p

is the critical Sobolev exponent, and

λ
>
0

\lambda \gt 0

. With the Nehari manifold approach, the above problem is discovered to have at least one weak solution. Furthermore, the singular term and critical nonlinearity arise concurrently, which is the main innovation and difficulty of this article. To some extent, we generalize the previous results.
Unveiling the Distinctive Impact of Vocational Schools Link and Match Collaboration with Industries for Holistic Workforce Readiness
Authors: Yoto  , Suyetno Agus , Wibawa Aji Prasetya , Paryono  , Romadin Achmad 
Published: December 2024

Abstract
This study examines vocational schools (VS) collaborative ventures, focusing on the VS Center of Excellence and its partnerships with local industries. The research explores how these collaborations shape a skilled workforce by investigating the Link and Match policy’s impact. Specifically studying machining engineering and construction in East Java, the research employs a multi-case qualitative approach to reveal context-specific insights. The study combines qualitative methods like interviews and observations with quantitative techniques such as surveys using a mixed-method approach. The sample comprises internship supervisors from significant industries in East Java, selected through proportionate random sampling. Thematic analysis is used for qualitative data, while descriptive statistics and Likert scale analysis handle quantitative data. The research offers insights into workforce needs by emphasizing technical competencies and soft skills development. It also looks ahead, considering the long-term effects of collaborative initiatives on graduates and industries. The study informs policymakers and educators by identifying challenges and aiming to enhance vocational education strategies. However, it is essential to recognize data collection biases and limitations in generalizability to other locations or sectors, which should be considered when interpreting findings and planning future research.
The repeated low-velocity impact response and damage accumulation of shape memory alloy hybrid composite laminates
Authors: Li Hao , Liu Kun , Tao Zhen , Ye Liqing , Xiao Wenkang 
Published: December 2024

Abstract
The repeated low-velocity impact responses of traditional glass fiber-reinforced composites and shape memory alloy (SMA) hybrid composites were explored in this work. The force–time/displacement and energy–time curves were compared based on the impact damage. The variations of impact mechanical features including contact peak force, maximum deflection, and absorbed energy were analyzed. The damage accumulation of the two kinds of composites was further assessed. Results showed that the damage tolerance and impact resistance of SMA hybrid composites were improved. The changes of dynamic mechanical responses were closely associated with the damage modes at different impact energies. The total energy absorption of SMA hybrid composites was much larger than that of traditional composites with more repeated impact numbers. Moreover, the damage accumulation of SMA hybrid composite was slower compared to traditional composite, while the improvement of SMA hybridization on the impact resistance of the composites was less obvious at higher impact energy.
Effect of soybean protein isolate, transglutaminase, and konjac glucomannan on the cooking and eating quality and digestibility of rice noodles
Authors: Wang Qing , Guan Chunmin , Luo Lijuan , Qiao Fan , Xiang Xiongzi , Lin Qinlu , Liu Chun 
Published: December 2024

Abstract
In this study, rice noodles were developed with the goal of improving texture, cooking quality, sensory attributes, and reducing glycemic impact by adding transglutaminase (TG), soybean protein isolate (SPI), and konjac glucomannan (KGM) to indica rice flour using a single-screw extruder. Compared to the control group without these additives, the textural analysis results showed that the addition of 0.5 % TG, 0.5 % KGM, and 3 % SPI significantly improved chewiness. For cooking and sensory quality, this formulation exhibited the lowest cooking loss rate (CLR), a reduced iodine blue value, the highest water absorption rate (WAR), and superior overall acceptability in comparison to the control. In terms of color properties, this group showed a 1.66 % increase in L* (lightness) and a 0.78 % decrease in a* (red-green value) compared to the control. Furthermore, the in vitro digestion results revealed a decrease of 3.87 % in estimated glycemic index (eGI) and an 8.03 % reduction in glycemic load (GL) for the 0.5 % TG + 0.5 % KGM + 3 % SPI group relative to the control. This study demonstrates the potential to enhance rice noodle quality while lowering glycemic impact.
Payment Habits during Covid-19: Evidence from High-Frequency Transaction Data
Authors: Dahlhaus Tatjana , Welte Angelika 
Published: December 2024

Abstract
The Covid-19 pandemic, in Canada and around the world, accelerated trends toward non-cash payments. In this paper, we assess the impact of high-frequency fluctuations in the severity of the pandemic on payment behaviour. These fluctuations are measured by daily changes in restrictions (“stringency”) and reported case counts. Our main measures of payment habits are the ratios of the value and transaction counts of cash withdrawals to debit card payments. Econometrically, we use local projections to estimate the effects on payment habits. We find evidence that consumer behaviour adjusted during the pandemic: consumers withdrew less cash relative to card payment and avoided frequent trips for cash withdrawals and point-of-sale purchases through higher transaction amounts. Based on our modelling, once stringency measures eased and case counts receded, cash use partially recovered, although not to pre-pandemic levels.
Computational analysis of degree-based hyper invariants for supramolecular chain
Authors: Zhang Xiujun , Amjad Muhammad , Jamil Muhammad Kamran , Saleem Umair , Ali Haider , Waheed Muhammad 
Published: December 2024

Abstract
One of the fundamental amino acids for mammals is l-valine, a glycogen-type amino acid. This is an essential amino acid for the production of proteins. N-salicylidene-l-valine is getting attention in recent research due to its distinct structure and elevated catalytic and cytotoxic activity. To understand more about this structure and its characteristics in topological indices, we investigate the chain of supramolecular dialkyltin N-salicylidene-l-valine complexes-2, 3, and 4. We investigate the hyper Zagreb index (HZI), the second HZI, the reduced second HZI, and the hyper-forgotten topological index of the supramolecular chain of certain complexes of N-salicylidene-l-valine. In addition, we analyze graphically and compare these topological invariants.
NÃO SOMOS ESTRANGEIRAS! PELAS LOUÇAS BRASILEIRAS
Authors: Souza Rafael Abreu 
Published: December 2024

Resumo: Este artigo busca problematizar categoria artefatual bastante recorrente nos contextos materiais sobre os quais a Arqueologia tende a se debruçar: as louças brasileiras. Argumenta-se que identifica-las nos sítios arqueológicos históricos nacionais é questionar as bases epistemológicas de uma Arqueologia voltada a um passado “antigo”, adentrando, portanto, o temido século XX; é entender que a inexorabilidade da louça branca deve ser questionada e que o barateamento da produção nacional propiciou seu uso, com maior intensidade, por grupos sociais que nem sempre as possuíam em seu dia-a-dia; e, por fim, é reconhecer que a Arqueologia Brasileira destaca, em alguns aspectos, o estrangeiro, em especial pela supervalorização dada, em diversas pesquisas, às louças inglesas.Abstract: This paper aims to highlight a common artifact over which Brazilian Archeology tends to not research about: Brazilian refined earthenwares. It is argued that identify these Brazilian potteries at archaeological historic sites question epistemological foundations of an Archaeology based on the study of the “ancient”, entering the so feared 20th century; it is to understand that English refined earthenwares are not a kind of “natural” choice and that national production of those wares turn cheaper an object that few social groups could afford during the 19th century. Finally, it is to recognize that Brazilian Archaeology still values, sometimes, the “foreign”, particularly by the overvaluation of English pottery.
ARQUEOLOGÍA DE LOS SITIOS FUNERARIOS, ESE COMPLEJO ESPACIO EN EL QUE NAUFRAGAN NO POCOS ARQUEÓLOGOS
Authors: Corzo Gabino La Rosa , Domíngues Lourdes S. 
Published: December 2024

Resumen: Internacionalmente, a la arqueología de los espacios fúnebres se le ha venido prestando mucha atención, principalmente a los aspectos metodológicos y conceptuales, pues las prácticas sepulcrales se estudian como uno de los campos de los que más información se puede extraer acerca de la cultura de una sociedad determinada.Abstract: Internationally, the archeology of the funeral spaces have been given a lot of attention, mainly to the methodological and conceptual aspects, since the sepulchral practices are studied as one of the fields from which more information can be extracted about the culture of a determined society.
ASPECTOS DA PRESERVAÇÃO DO PATRIMÔNIO NO RIO GRANDE DO SUL: O CASO DO TOMBAMENTO DOS BENS MÓVEIS PERTENCENTES À BIBLIOTECA PÚBLICA DO ESTADO
Authors: Dias Guilherme 
Published: December 2024

Resumo: Nosso intuito com o presente artigo é apresentar características do processo de tombamento dos bens móveis pertencentes à Biblioteca Pública do Estado. Dois motivos nos levaram as escolha desse tema: o primeiro, por tratar-se de um tombamento de bens móveis, contrariando, portanto, a lógica da “pedra e cal”, presente tanto nos tombamentos estaduais quanto nos nacionais, e o segundo por ser um processo que demonstra uma grande preocupação com a preservação dos bens em questão, muito antes do tombamento da própria Biblioteca Pública doEstado. Destaca ainda o uso de imagens no processo utilizadas para justificar a preservação dos bens a serem tombados.Abstract: Our main goal in this article is to expose the issues that involve the landmark creation process of the State’s Public Library’s mobile properties. We happened to choose this subject for two reasons: the first one is about mobile properties turning into landmarks, therefore contradicting the “stone and lime” logic that is present amongst both state’s and national’s landmarks creation processes; the second reason is because the process shows a big concernment about the preservation of these properties, way before of the landmark creation process of the State’s Public Library itself.
AS PRÁTICAS DE VELAMENTO NA CIDADE DE BAGÉ-RS-BRASIL - CULTURA MATERIAL E VISUAL.
Authors: Bastianello Elaine Tonini , Cerqueira Fábio Vergara 
Published: December 2024

Resumo: Examinar o ritual de velamento e o aparato de adornos funerários na cidade de Bagé significa contar parte de sua história. Sob a perspectiva da cultura material e visual, buscaremos compreender as atitudes cotidianas dessa sociedade, suas transformações, seus valores religiosos, morais, como tantos outros, revelando importantes aspectos de sua memória. Esta prática nos relata a forma desta sociedade se portar e se enfeitar diante da morte nos primórdios do século XX. Abstract: To examine the funeral ritual of the wake and the apparatus of funeral decorations in the Bagé city means telling its history. Under the perspective of the material and visual culture, we search to understand its daily attitudes, its transformations, religious and moral values, as well as many others, what enables us to reveal important aspects of the memory of this society. This practice tells us the behavior and adornments of this society front of death in the twentieth century.
Localization of osteocalcin in bone healing treated by local application of collagen and beta-tricalcium phosphate in rats
Authors: Hussein B. J. , Ghani B. A. 
Published: December 2024

Introduction Bone repair is a complex and multifaceted process that generally happens naturally unless complicated by situations such as substantial bone defects. The bone healing process is typically divided into three stages: inflammation, repair, and remodeling. Beta-tricalcium phosphate (β-TCP) renowned for its abundant reserves of calcium and phosphorus, easily assimilated by the body. Its exceptional biocompatibility assists in the formation of an absorbable interlinked structure at the injury site, contributing to the advancement of the healing process.Purpose This study aimed to estimate the effects of a scaffold of collagen/β-tricalcium phosphate (Coll/βTCP) on bone construction to evaluate its latent usage as a bone auxiliary to repair bone defects.Material and Methods The experiment was performed on 20 adult male albino rats. Four holes were surgically created on each animal, two in each femur; two holes were treated separately with Coll or β-TCP, one hole with their combination. The untreated hole served as a control. Animals were scarified after twoand four-week treatment periods (10 rats for each). Immunohistochemical analysis of bone marrow stromal cells, osteocytes, osteoblasts and osteoclasts using polyclonal antibodies to osteocalcin was performed.Result Immunohistochemical results discovered strong positive expression of osteocalcin in bone healing in the group of combined treatment (β-TCP and collagen) as compared to other groups. Highly significant differences were seen between the combination of collagen with β-TCP and the control group at both timepoints of the experiment.Discussion The marker osteocalcin is unique to osteoblasts, specifically to osteoblasts that are actively forming new osteoid or remodeling bone. The obtained findings showed that mean values of osteocalcin expression were greater in the experimental groups than in the control group.Conclusion The combination of collagen with β-TCP showed the greatest efficacy in accelerating bone healing and increasing osteogenic capacity due to increased osteocalcin immunoreactivity.
Original first metatarsophalangeal hemiarthroplasty and installation technique in treatment of grade 3–4 hallux rigidus
Authors: Skrebtsov V. V. , Protsko V. G. , Skrebtsov A. V. , Tamoev S. K. , Nikitina V. K. 
Published: December 2024

Introduction Arthrodesis is the “gold standard” for the treatment of stage 3–4 osteoarthritis of the first metatarsophalangeal (MTP) joint. However, restricted movements in the joint can lead to changes in the biomechanics of the foot overloading the adjacent joints and are accompanied by decreased activity which is important for younger patients. The available implants of the first MTP joint have some disadvantages and an original hemiarthroplasty of the first MTP joint was developed.The objective was to demonstrate an original technique of hemiarthroplasty of the first MTP joint and installation to treat stage 3–4 hallux rigidus.Material and methods The hemiendoprosthesis is made of zirconium ceramics. The head of the hemiendoprosthesis is made with a low profile. The cross-section of the stem has a four-bladed shape to ensure rotational stability of the implant. The hemiendoprosthesis can be placed using specially designed instruments. A case of a 74-year-old patient diagnosed with stage 3 osteoarthritis of the first MTP joint is reported.Results AOFAS Hallux scored 28 and 95, VAS scored 9 and 0 and FFI scored 112 and 6 preoperatively and at 24 months, respectively. The range of motion in the joint (extension/flexion) measured 0°–0°–5° preoperatively and 60°–0°–15° at 24 months. The dynamic pedobarography indicated to the physiological distribution of pressure in the foot being restored postoperatively.Discussion The first implants offered to replace first MTP joint were made of silicone and metal alloys and total joint arthroplasty was associated with significant resection of bone tissue; cases of endoprosthetic instability were reported. Hemiarthroplasty appeared to be a sparing technique. However, implants made of metal alloys could have an aggressive effect on the opposite articular surface. Hemiarthroplasty of the first MTP joint using a zirconium ceramic implant could minimize the risk of the complications.Conclusion Hemiarthroplasty of the first MTP joint using an original zirconium ceramic implant was shown to be effective for patients with stage 3–4 hallux rigidus. The technique reported can be a good alternative to arthrodesis of MTP joint.
Application of seismic facies analysis using attributes to reservoir prediction
Authors: Mitrofanov G. M. , Kovalenko I. A. , Korytkin E. I. 
Published: December 2024

Seismic facies analysis is one of the most important stages in the qualitative dynamic interpretation of seismic exploration results. By summarizing considerable experience in the analysis of seismic data and the calculation of various seismic attributes, it allows the identification of geological elements manifesting in the seismic wave field. This makes it possible to determine the detailed geological structure of promising deposits and identify seismic facies based on the similarity of acoustic properties. The article presents the results of testing the seismic facies analysis algorithm on real data using two clustering techniques: by the form of the seismic record and by a set of seismic attributes.