bluuebunny/crossref_metadata_2025 huggingface dataset:
The multifaceted role of water as an accelerator of the crosslinking reaction of isocyanate-free polyurethane net-works
Authors: Monie Florent , Vidil Thomas , Grau Etienne , Grignard Bruno , Detrembleur Christophe , Cramail Henri
Published: June 2024

Polyhydroxyurethane (PHU) thermosets are the most promising isocyanate-free substitutes to polyurethane ones when targeting the main applications of the PU business (coatings, adhesives, foams). However, the curing of their solvent-free formulations at near room temperatures is often very slow and requires the utilization of organocatalysts, limiting the large-scale deployment of the technology. Herein, we study the impact of water, introduced as an additive (2 to 10 wt.%), on the crosslinking rate of common solvent-free thermosetting PHU formulations composed of a polycyclic carbonate and a diamine. Rheology measurements, using a multi-frequency approach, indicate that even very small amounts of water (< 5 wt.%) impressively shorten gel times, by up to 5 folds at 40 °C. The multi-frequency methodology highlights for the first time the strong interactions of water with the growing PHU network during the crosslinking reaction. It suggests that water breaks down the multiple intra-/inter-molecular H-bond interactions within the PHU clusters, consequently enhancing the molecular mobility and delaying the vitrification (hydroplasticization), both phenomena contributing to accelerate the crosslinking rate. On top of that, through a combination of model reactions and computational calculations, we demonstrate that water is an actual catalyst of the cyclic carbonate aminolysis. Eventually, thanks to its multifaceted role, water can efficiently substitute the organocatalysts (e.g. TBD, DBU) usually required to cure PHU formulations at near ambient temperature. This work demonstrates that the use of additive amounts of water in solvent-free formulations is a cost-effective, non-toxic, and robust solution to accelerate the production of PHU materials, free of any organocatalyst. It offers promising prospects for the deployment of PHU-based materials requiring mild processing conditions.
Synergizing data-driven and knowledge-based hybrid models for ionic separations
Authors: Olayiwola Teslim , Briceno-Mena Luis , Arges Christopher , Romagnoli Jose
Published: June 2024

A hybrid modeling framework has been developed for electrodialysis (ED) and resin-wafer electrodeionization (EDI) in brackish water desalination, integrating compositional modeling with machine learning techniques. Initially, a physics-based compositional model is utilized to characterize the behavior of the unit. Synthetic data is then generated to train a machine learning-based surrogate model capable of handling multiple outputs. This model is further refined using a limited set of experimental data. The effectiveness of this approach is demonstrated by its ability to accurately predict experimental results, indicating a faithful representation of the system's behavior. Through analysis of feature importance facilitated by the machine learning model, a nuanced understanding of the interaction between the chosen ion-exchange resin wafer type and ED/EDI operational parameters is obtained. Notably, it is found that the applied cell voltage has a predominant impact on both separation efficiency and energy consumption. By employing multi-objective optimization techniques, experimental conditions are identified that achieve 99% separation efficiency while keeping energy consumption below 1 kWh/kg.
Room-Temperature Magnetism in the Crystal of a 1,6-Heptadiyne Derivative and the Processable Polymer
Authors: Chen Manyu , Hu Guangze , Xiong Zuping , Hu Haoyuan , Sun Jing Zhi , Zhang Haoke , Tang Ben Zhong
Published: June 2024

Room-temperature organic magnetic materials have been a sought-after but challenging topic for a long time. Besides the reported organic-containing magnets including pure organic radicals, charge-transfer salts, and coordination polymers, we report a novel and alternative approach to fabricate purely organic/polymeric magnets based on the crystal of a 4-substituted 1,6-diyne (M1) and its polymer (P1). Both of the white M1 crystal and the black P1 powder samples exhibit room-temperature magnetism. The saturation magnetization of P1 is about 0.25 emu g−1 and its Curie temperature is higher than 400 K. After repeated recrystal of M1 and precipitation of P1 to thoroughly remove the metal-catalyst residues, the room-temperature magnetism of M1 and P1 is tentatively assigned to the stable radicals in the solid samples. The results demonstrated in this work suggest an unprecedented strategy to obtain room-temperature organic magnets.
Solid-State Synthesis Route to a Hybrid Cobalt Chloride Perovskite Ferroelectric
Authors: Lee Teresa , Xu Xianghan , Sevison Gary , Rumi Mariacristina , Cava Robert
Published: June 2024

We detail the synthesis and the structural, magnetic, and ferroelectric characterization of two previously unreported hybrid halide compounds—(3-pyrrolinium)CoCl3 and (3-pyrrolinium)FeCl3. These materials crystallize in a hexagonal perovskite-type structure, consisting of face-sharing chains of metal chloride octahedra which are isolated from one another by 3-pyrrolinium rings. Through temperature and field-dependent magnetization measurements, we find that the one-dimensional coupling in the Co compound is antiferromagnetic in nature, and that of the Fe variant appears to result from competing ferromagnetic and antiferromagnetic interactions. (3-pyrrolinium)CoCl3 is found to have a ferroelectric phase with a Curie temperature of 381 K, as corroborated by dielectric constant, polarization, and second harmonic generation measurements. (3-pyrrolinium)FeCl3 also exhibits signatures of ferroelectricity below 358 K, but additional experimental evidence is required to support the transition assignment. Importantly, we report the first Co- and Fe-based organic-inorganic halide perovskite ferroelectrics of the AMX3-type. In doing so, we demonstrate an alternate route to the synthesis of novel hybrid halide materials possessing interesting magnetic or ferroelectric properties.
Functionality-type and chemical-composition separation for poly(lactide-co-glycolide) using gradient elution with basic and acidic additives in normal-phase liquid chromatography
Authors: Serizawa Masashi , Reekers Jeroen , Delft Pieter van , Bruijnsvoort Michel van , Schoenmakers Peter J. , Gargano Andrea F.G.
Published: June 2024

The end groups of poly(lactide-co-glycolide) (PLGA) play a crucial role in determining the properties of polymers used in drug delivery systems. Research has shown that the encapsulation efficiency in PLGA microspheres can vary significantly between ester-terminated and acid-terminated PLGA. To study the functionality-type distribution (FTD) in PLGA polymers, researchers have used methods such as matrix-assisted laser desorption/ionization – high-resolution mass spectrometry and electrospray ionization – mass spectrometry. However, these methods are typically limited to PLGA polymers with a molecular weight of up to 4kDa. 13Carbon-nuclear-magnetic-resonance has also been used to differentiate and quantify PLGA end groups, but this method is time-consuming, taking over 12 hours per sample. To address these limitations, we have developed a normal-phase liquid chromatography method that can separate FTD and partial chemical composition distribution (CCD) in PLGA polymers. Our method can separate PLGA polymers with a molecular weight of up to 185 kDa and simultaneously separate the difference in lactic acid (LA)/glycolic acid (GA) ratios. To achieve this, we used a cross-linked diol column with a ternary gradient from hexane to 0.1% v/v triethylamine in THF to 0.1% v/v formic acid in THF. This allowed for the elution of ester-terminated PLGA, followed by acid-terminated PLGA. We also separated ester-terminated PLGA in the difference of the LA/GA ratio. Our method is expected to help understand the correlation between PLGA’s FTD, CCD, and physical properties, which will facilitate product development.
Recent approaches in computational modelling for controlling pathogen threats
Authors: Lees John A , Russell Timothy W , Shaw Liam P , Hellewell Joel
Published: June 2024

In this review, we assess the status of computational modelling of pathogens. We focus on three disparate but interlinked research areas that produce models with very different spatial and temporal scope. First, we examine antimicrobial resistance (AMR). Many mechanisms of AMR are not well understood. As a result, it is hard to measure the current incidence of AMR, predict the future incidence, and design strategies to preserve existing antibiotic effectiveness. Next, we look at how to choose the finite number of bacterial strains that can be included in a vaccine. To do this, we need to understand what happens to vaccine and non-vaccine strains after vaccination programmes. Finally, we look at within-host modelling of antibody dynamics. The SARS-CoV-2 pandemic produced huge amounts of antibody data, prompting improvements in this area of modelling. We finish by discussing the challenges that persist in understanding these complex biological systems.
p53 ensures the normal behavior and modification of G1/S-specific histone H3.1 in the nucleus
Authors: Oikawa Tsukasa , Hasegawa Junya , Handa Haruka , Ohnishi Naomi , Onodera Yasuhito , Hashimoto Ari , Sasaki Junko , Sasaki Takehiko , Ueda Koji , Sabe Hisataka
Published: June 2024

H3.1 histone is predominantly synthesized and enters the nucleus during the G1/S phase of the cell cycle, as a new component of duplicating nucleosomes. Here, we found that p53 is necessary to secure the normal behavior and modification of H3.1 in the nucleus during the G1/S phase, in which p53 increases C-terminal domain nuclear envelope phosphatase 1 (CTDNEP1) levels and decreases enhancer of zeste homolog 2 (EZH2) levels in the H3.1 interactome. In the absence of p53, H3.1 molecules tended to be tethered at or near the nuclear envelope (NE), where they were predominantly trimethylated at lysine 27 (H3K27me3) by EZH2, without forming nucleosomes. This accumulation was likely caused by the high affinity of H3.1 toward phosphatidic acid (PA). p53 reduced nuclear PA levels by increasing levels of CTDNEP1, which activates lipin to convert PA into diacylglycerol. We moreover found that the cytosolic H3 chaperone HSC70 attenuates the H3.1-PA interaction, and our molecular imaging analyses suggested that H3.1 may be anchored around the NE after their nuclear entry. Our results expand our knowledge of p53 function in regulation of the nuclear behavior of H3.1 during the G1/S phase, in which p53 may primarily target nuclear PA and EZH2.
Discussion on the Application of Artificial Intelligence Technology in Mining Geological Exploration
Authors: Zhang Xiuliang , Nyamasvisva Tadiwa Elisha , Liu Chuntao
Published: June 2024

With the rapid development of science and technology, artificial intelligence technology has been widely used in various fields, including mining geological exploration field is no exception. Artificial intelligence technology has brought revolutionary changes to mining geological exploration, its application in mining geological exploration, not only can improve the efficiency and accuracy of mining geological exploration, but also greatly reduce the cost of mine exploration, and improve the safety and reliability of exploration. At present, the application of artificial intelligence technology in mining geological exploration, mainly three-dimensional visual technology, machine learning algorithm, remote sensing image recognition technology, natural language processing technology, intelligent data analysis technology, and so on, has provided strong support for mining geological exploration work.
Research on the Dilemma and Countermeasures of Rural Vocational Education under the Background of Rural Revitalization Strategy: A Case Study of the Wuling Mountain Area in Chongqing
Authors: Huang Yaqin
Published: June 2024

The context of this study is the rural revitalization strategy in Chongqing. Based on Sen’s poverty theory and Schultz’s human capital theory, this paper selects the Wuling Mountain area of Chongqing, a representative underdeveloped area, as the research object. Under the actual local development situation, this paper mainly uses the literature research method, questionnaire survey method, and case study method to analyze the development status of rural vocational education in this area, and discusses the influencing factors of its development. The bottleneck problems in the development process are summarized, which are mainly reflected in the asymmetry of educational information, educational resources, and educational talents. Targeted countermeasures and suggestions are put forward to provide ideas and references for the development of rural vocational education in other regions, further promote the process of rural education construction, and strengthen the construction of basic education and talent.
Association between adverse events after COVID-19 vaccination and anti-SARS-CoV-2 antibody concentrations, the Netherlands, May 2021 to November 2022: a population-based prospective cohort study
Authors: Holwerda Minke R , Hoeve Christina E , Huiberts Anne J , den Hartog Gerco , de Melker Hester E , van den Hof Susan , Knol Mirjam J
Published: June 2024

Background

Non-severe adverse events (AE) including pain at injection site or fever are common after COVID-19 vaccination.

Aim

To describe determinants of AE after COVID-19 vaccination and investigate the association between AE and pre- and post-vaccination antibody concentrations.

Methods

Participants of an ongoing prospective cohort study (VASCO) completed a questionnaire on AE within 2 months after vaccination and provided 6 monthly serum samples during May 2021–November 2022. Logistic regression analyses were performed to investigate AE determinants after mRNA vaccination, including pre-vaccination Ig antibody concentrations against the SARS-CoV-2 spike protein receptor binding domain. Multivariable linear regression was performed in SARS-CoV-2-naive participants to assess the association between AE and log-transformed antibody concentrations 3–8 weeks after mRNA vaccination.

Results

We received 47,947 completed AE questionnaires by 28,032 participants. In 42% and 34% of questionnaires, injection site and systemic AE were reported, respectively. In 2.2% of questionnaires, participants sought medical attention. AE were reported more frequently by women, younger participants (< 60 years), participants with medical risk conditions and Spikevax recipients (vs Comirnaty). Higher pre-vaccination antibody concentrations were associated with higher incidence of systemic AE after the second and third dose, but not with injection site AE or AE for which medical attention was sought. Any AE after the third dose was associated with higher post-vaccination antibody concentrations (geometric mean concentration ratio: 1.38; 95% CI: 1.23–1.54).

Conclusions

Our study suggests that high pre-vaccination antibody levels are associated with AE, and experiencing AE may be a marker for higher antibody response to vaccination.
WILDbase: towards a common database to improve wildlife disease surveillance in Europe
Authors: de Cock Marieke P , Baede Valérie O , Wijburg Sara R , Burt Sara A , van Tiel Robert FNA , Wiskerke Kim K , van der Post Jens RJ , van der Poel Wim HM , Sprong Hein , Maas Miriam
Published: June 2024

Background

To be better prepared for emerging wildlife-borne zoonoses, we need to strengthen wildlife disease surveillance.

Aim

The aim of this study was to create a topical overview of zoonotic pathogens in wildlife species to identify knowledge gaps and opportunities for improvement of wildlife disease surveillance.

Methods

We created a database, which is based on a systematic literature review in Embase focused on zoonotic pathogens in 10 common urban wildlife mammals in Europe, namely brown rats, house mice, wood mice, common voles, red squirrels, European rabbits, European hedgehogs, European moles, stone martens and red foxes. In total, we retrieved 6,305 unique articles of which 882 were included.

Results

In total, 186 zoonotic pathogen species were described, including 90 bacteria, 42 helminths, 19 protozoa, 22 viruses and 15 fungi. Most of these pathogens were only studied in one single animal species. Even considering that some pathogens are relatively species-specific, many European countries have no (accessible) data on zoonotic pathogens in these relevant animal species. We used the Netherlands as an example to show how this database can be used by other countries to identify wildlife disease surveillance gaps on a national level. Only 4% of all potential host–pathogen combinations have been studied in the Netherlands.

Conclusions

This database comprises a comprehensive overview that can guide future research on wildlife-borne zoonotic diseases both on a European and national scale. Sharing and expanding this database provides a solid starting point for future European-wide collaborations to improve wildlife disease surveillance.
An unusual outbreak of parvovirus B19 infections, France, 2023 to 2024
Authors: d’Humières Camille , Fouillet Anne , Verdurme Laura , Lakoussan Stevens-Boris , Gallien Yves , Coignard Catherine , Hervo Marie , Ebel Anne , Soares Anaïs , Visseaux Benoit , Maire Bruno , Juan Pierre-Henry , Parent du Châtelet Isabelle , Guthmann Jean-Paul , Durand Julien
Published: June 2024

From April 2023 to May 2024, an unusual epidemic of parvovirus B19 (B19V) infections occurred in France. The number of B19V IgM-positive serologies was four times higher than in the previous epidemic in 2019. Clinical data from emergency networks corroborated this observation. Morbidity and mortality consequences were observed in children through all data sources. In adults, the increase was only observed in laboratory-confirmed data. Physicians and decisionmakers should be informed in order to better prevent, diagnose and manage at-risk patients.
The influence of atmospheric pollution in Novosibirsk on soil microorganisms of the nitrogen cycle
Authors: Pishchimko O. , Korobova L.
Published: June 2024

The research was carried out in Novosibirsk, a large metropolis with a population of more than 1.6 million people. The city has a well-developed transportation and logistics infrastructure, and an industrial complex that contribute to an increased environmental burden due to pollutants with a synergistic effect The study assessed the microbiological characteristics of soil as an indicator of the environmental status in areas with reduced traffic, motor vehicle, and industrial pollution. These findings were compared with data from instrumental analysis of atmospheric air conducted by West Siberian Administration for Hydrometeorological and Environmental Monitoring at stationary sites adjacent to the soil sampling points. It was revealed that the microbiological processes of the nitrogen cycle are disrupted in the urban-gray forest soil of Novosibirsk, especially in the area affected by transport and industrial pollution. This leads to a decrease in the number of nitrogen-fixing and protein-mineralizing microorganisms. The trend of development of microorganisms that utilize organic and mineral nitrogen correlates with air pollution from dust, nitrogen dioxide, formaldehyde, and carbon monoxide in the surveyed areas. The abundance of autotrophic nitrogen fixers in the soils of different zones of the city is similar, which may be attributed to the intensity of fuel combustion processes. Despite the relatively high nitrogen content, the potential for the development of denitrifies in the densely populated Central district of the city, with its high traffic load, is not realized in the soil due to the salt content. Changes in the nitrogen cycle indicate degradation of the ecological functions of the soil in polluted urban areas.
Protected and in need of protection forest species of the eastern part of the Russian Caucasus
Authors: Baybatyrova E. , Taisumov M. , Astamirova M. , Magomadova R. , Dudagova E.
Published: June 2024

The rarity of a species is determined by two main factors: natural rarity caused by the biological characteristics of the species (low abundance, small or fragmented range, reduced reproductive capacity). This category includes the most vulnerable species (endemic, relict, stenobiontic); anthropogenically caused rarity, leading to a reduction in the number of a species and its range due to human activity. The most important mechanisms for the conservation of rare and endangered species that are subject to protection are their inclusion in the Red Data Books at the federal and regional levels, and the establishment of a system of Protected Areas designed in situ to preserve populations of these species. The article provides information about protected and recommended for protection forest plant species in the eastern part of the Russian Caucasus, as well as historical information about the creation of regional Red Data Books. The forest flora under study includes 83 plant species, the problem of extinction of which is very urgent. For all species, protection categories and population status are indicated; 75 species of them are protected, and 8 species need protection and are recommended for inclusion in the regional Red Data Books.
Experience of creating, storing and using an entomological collection for educational purposes at the Department of Biology and Soil Science of Orenburg State University
Authors: Lykova T. , Bulgakova M.
Published: June 2024

The experience of creating and storing an entomological collection at the Department of Biology and Soil Science of Orenburg State University is presented. The features of using various methods of collecting insects in the arid climate of the steppe zone are described: individual insect trapping with an entomological net, sweep netting, manual insect collection and the use of soil traps. Methods that ensure the representativeness of the created entomological collection in relation to the representation of various ecosystems of the region, systematic and ecological groups of entomofauna are discussed through specific examples. The necessity of compiling an educational entomological collection across sections such as «External structure of insects,» «Insect developmental biology,» «Biological diversity of insects,» and «Pests of agricultural and ornamental crops» is substantiated and exemplified. The experience of identifying damage and restoring collection exhibits that have lost their value and no longer serve as demonstrative material is discussed. Recommendations for the protection of collection specimens and their long-term preservation are provided
Mycogenic xylolysis processes in artificial forest plantations in the steppe zone of the Orenburg region (Southern Urals)
Authors: Safonov M.
Published: June 2024

Macromycetes are the most significant component of the forest ecosystem decomposers. The process of mycogenic wood decay depends on various factors, which in turn affects the functioning of forest ecosystems. The study of mycogenic xylolysis processes in the Southern Urals (Orenburg region) began in 2000. However, during that period experiment was limited to the forest-steppe part of the region and focused on stands of natural origin. However, the majority of the region is located within the steppe zone, highlighting the relevance of similar studies in the central and southern parts of the region in stands of artificial origin. The experiment was conducted in 2019–2022; so, samples of birch, pine, elm and maple wood were laid for a period of 3 years. The studies show that the rate of mycogenic wood decay varies within the steppe zone of the Southern Urals. The highest rate of decay is characteristic for the branch litter of elm, birch, and pine, while the lowest rate is observed for the decay of maple. A wider variation in the decomposition rate was typical for samples of pine and birch. The decomposition rate of pine wood varies significantly depending on the location, while the indicators for birch wood are more uniform. The comparison of the newly obtained data with previously collected data on the rate of mycogenic xylolysis in the forests of the forest-steppe part of the region indicates that the wood decay rate in artificial plantations is slightly lower than that in natural forests, particularly in relation to pine wood decay. Thus, the intensity of mycogenic xylolysis in artificial plantations of the steppe zone of the Southern Urals is relatively high and is quite comparable to that in natural plantations. This indicates the efficient operation of the system of reducers in artificial plantings.
A neurokognitív teljesítmény romlása súlyos fokú obstruktív alvási apnoés betegek esetében
Authors: Nagy Attila , Szakács Zoltán
Published: June 2024

Számos egészségügyi állapot létrehozhat alvás közben fellépő légzési rendellenességeket, amelyek a későbbiekben fokozott egészségügyi rizikóval járhatnak. Az obstruktív alvási apnoe szindróma (OSAS) a leggyakoribb ezek közül. Súlyos esetben ezen betegekre jellemző lehet a fokozott nappali álmosság, figyelemzavar, szorongás, illetve depressziós tünetek, amelyek mellett a kognitív képességek is romolhatnak. Vizsgálatunk célja a súlyos fokú obstruktív alvási apnoe szindrómában szenvedő betegek kognitív működési zavarainak vizsgálata egy egészséges önkéntesekből álló kontrollcsoporttal összehasonlítva. Kutatásunk kimutatta, hogy az alvási apnoe negatívan befolyásolja a kognitív funkciókat, ami teljesítményromláshoz, valamint társbetegségek fokozott kialakulásához vezethet. Ezért ennek a diagnosztizálása és kezelése hosszú távon az egészségügyi rizikó csökkenésével jár.
Édes lebegés – avagy a fentanil "nyalóka" katonai alkalmazása
Authors: Surányi Zsolt Mihály , Lernyei Ágnes
Published: June 2024

A fájdalomcsillapításra való igény egyidős az emberiséggel, hiszen az emberi lét elkerülhetetlen velejárója maga a fájdalom, amelyet mindig is törekedtünk elnyomni, hogy meneküljünk előle. A fájdalom elleni küzdelem töretlenül fejlődik, kezdve az őskorban már használt gyógynövényektől a modern kori farmakológiai készítményekig. Az új anatómiai, élettani és biokémiai ismeretek lehetővé tették a modern fájdalomcsillapítók szintetizálását és azok megjelenését a gyógyítás mindennapjaiban. A cikk áttekintést nyújt a fájdalomcsillapítás történetéről, majd egy speciális szegmensére szűkül, végezetül a fentanil tartalmú „nyalóka” katonai használatára fókuszál. Választ keres arra, hogyan alkották meg ezen gyógyszert, milyen előnyökkel jár, és kik használják ezt az „édes lebegést” okozó készítményt, továbbá megvizsgálja a készítmény honi behozatalának és alkalmazásának lehetőségét is.
THE ROLE OF INFORMATION TECHNOLOGY IN FORENSIC INVESTIGATION ANALYSIS PRACTICES FOR FRAUD DISCLOSURE IN THE GOVERNMENT ENVIRONMENT
Authors: Oktarina Ririn , Fachruzzaman Fachruzzaman
Published: June 2024

The Industrial Revolution 5.0 emphasizes interaction and collaboration between humans and machines. However, digital technology supports various types of fraud that occur in the accounting field. Forensic accounting and investigative audits play an important role in uncovering fraud cases in this digital era. This research aims to understand the role of information technology in forensic investigation practices for disclosing fraud in government environments. This research is a type of qualitative research with a case study approach, where the type of data used is primary data, namely the results of in-depth interviews, documentation studies, and observations of several informants, namely structural and functional supervisory officials at the Bengkulu Province Inspectorate, and secondary data obtained through library materials or a literature study. The results of this research indicate that information technology plays an important role in the practice of forensic analysis to detect fraud in government environments. Information technology can help detect fraudulent activities and make it easier for auditors to analyze audit data. Apart from that, information technology can also help internal controls reduce the risk of fraud in the organization. One of the information technologies that can be used in the future by the Bengkulu Province Inspectorate is computer-assisted audit techniques (CATTs). By applying this information technology, it can help produce information that is more accurate, and faster, and has an impact on the process of disclosing fraud in the government environment.
CELEBRITY ENTREPRENEURSHIP: UNDERSTANDING EFFECT OF SELF CONGRUENCE, CREDIBILITY, SOCIAL MEDIA INTERACTION AND BRAND ATTACHMENT IN CELEBRITY PRODUCT PURCHASE INTENTION
Authors: Gunawan Desty , Yasser Iqbal Daulay Muhammad
Published: June 2024

In the contemporary digital age, celebrity entrepreneurs have emerged as a noteworthy phenomenon, capitalizing on their notoriety to develop innovative products. This study investigates how brand attachment mediates the relationship between self-congruence, credibility, social media interactions, and purchase intentions. This research uses quantitative methods. This research uses quantitative methods. The sample in this study amounted to 271 respondents taken using a purposive sampling technique by distributing questionnaires. The method of data analysis employs Smart PLS to evaluate t-tests, validity and reliability assessments, and reliability tests. The research results show that each variable has a positive correlation which shows how important self-congruence, celebrity credibility, and social media interaction are to potential consumers' purchase intention towards celebrity products, and is mediated by brand attachment. This results in consumers developing a sense of loyalty towards the product brand, consequently stimulating their intention to make a purchase. This research is slightly different from previous research which examined brand attitude as a mediating variable. Researchers explored and changed these variables into brand attachment. This research and previous research only have one hypothesis in common, namely H6. However, in reality, even though they have the same hypothesis, the results obtained from this research and previous research are different. In previous research, the credibility variable did not influence purchase intention, whereas in this study the celebrity credibility variable had a positive and significant influence on the purchase intention variable.
THE INFLUENCE OF SERVANT LEADERSHIP AND PERCEPTIONS OF ORGANIZATIONAL SUPPORT ON EMPLOYEE PERFORMANCE THROUGH ORGANIZATIONAL COMMITMENT MEDIATION
Authors: Maghfirah Helina , Yanita Yanita , Ikramuddin Ikramuddin , Ariska Juliana
Published: June 2024

The purpose of this study is to examine employee performance levels and the variables that affect them. Up to 133 workers of PT. Medco E&P Malaka made up the study's sample. The Analysis of Moment Structure (AMOS) tool was utilized to operationalize Structural Equation Modeling (SEM), the data analysis method used to study the questionnaire data. The findings of the study demonstrate that employee performance is significantly impacted by organizational commitment, perceived organizational support, and servant leadership. Upon examining the indirect impact of organizational commitment, it was discovered to function as a partially mediating factor in the correlation between perceived organizational support and the influence of servant leadership on employee performance. It is anticipated that this study's findings will.
GENDER INEQUALITY AND POVERTY IN ACEH
Authors: Nailufar Fanny , Andriyani Devi , Mellita Sari Cut Putri , Trisniarti Noviami , Manurung Defiah Anggraini , Tanjung Dhea Wahyuni
Published: June 2024

This research analyzes gender inequality through the Gender Inequality Index (GII) and its influence on poverty in Aceh. The study employed a panel data analysis method for 23 districts/cities in Aceh from 2018 to 2022. The research findings indicate that gender inequality significantly affects poverty in the 23 districts/cities of the Aceh Province, with a coefficient value of 3.089289. This suggests that a one percent increase in the Gender Inequality Index (GII) will lead to a 3.089 percent increase in poverty, assuming other factors remain constant. High gender inequality can make the realization of inclusive development challenging. Therefore, it is hoped that the Aceh government can formulate strategies to increase women's labor participation and encourage their involvement in public positions and strategic decision-making, thus acknowledging their involvement in public spaces.
ANALYSIS OF ENERGY POVERTY ACROSS SECTORS IN INDONESIA
Authors: Nurul Lita Safira , Abu Bakar Jariah
Published: June 2024

This study was conducted to analyze the influence of the household sector, transportation sector, other sectors, and energy prices on energy poverty in Indonesia. This study uses time series data from 1970-2022 using the ARDL model. The results showed that the household sector variable in the short term has a positive and significant influence on energy poverty, while in the long term, it also has a positive influence and is followed by a significant level. The transportation sector variable has a negative influence and is followed by a significant level of energy poverty in the short and long term. Other sector variables in the short and long term have no effect on energy poverty. The energy price variable in the short and long term also has no influence and is not significant on energy poverty in Indonesia.
DETERMINANTS OF ALLEVIATING POVERTY IN ACEH
Authors: Husein Ratna , Rahmah Mutia , Muchtar Darmawati , Kurniawan Muhammad , Ulfa Mutia
Published: June 2024

The primary objective of this research is to assess the level of government involvement in poverty alleviation in the Aceh region. The primary data utilized in this study was collected by distributing questionnaires to individuals residing in the Gayo Luwes, Bener Meriah, Pidie Jaya, and North Aceh districts. The methodology utilized for data analysis in this study is multiple regression. The factors of health and unemployment exert a substantial influence on the level of poverty in the region of Aceh. The community expresses their desire for the Aceh government to effectively promote enough employment opportunities and provide comprehensive training programs for individuals seeking employment. This would allow for the exploitation of the region's potential and consequently achieve desirable levels of income. These actions are anticipated to mitigate poverty and boost general economic expansion, therefore boosting national development.
ISLAMIC LABEL AND PERFORMANCE: THE ROLE OF FINANCIAL FLEXIBILITY AND CASH HOLDING
Authors: Hasyim Diana , Budiarta Kustoro , Wardani Nurul , Parulian Edison
Published: June 2024

The objective of this study is to explore the contribution of a third phenomenon or extra variables formulated in the form of mediation and moderation in the Islamic Label and performance relationship model. By observing 225 companies over the period 2012–2021 and using partial least squares (PLS) analysis techniques, the test results show that the mediation of financial flexibility can partially add to the total effect of the Islamic Label on performance. The mediating effect of financial flexibility in the Islamic label–performance relationship model indicates that the Islamic label affects performance indirectly. Other empirical findings show that cash reserves moderate (strengthen) the effect of Islamic labels on performance. This empirical result indicates that the impact of IL on performance depends on cash reserves. Finally, Islamic Label has a significant positive effect on performance, which indicates that business ethics from an Islamic perspective, among others, can be a substitute for CSR. The overall research results show that the third phenomenon (mediating and moderating variable) plays an important role in explaining the impact of Islamic Label on performance and also shows the uniqueness of this research compared to previous studies that explore the influence of Islamic Label on performance partially. Therefore, the results of this study confirm the contingency theory which states that to obtain validity of the results of a phenomenon it is necessary to consider a more complex causal relationship (at least a trivariate relationship) by identifying third variables (interaction, moderation, and mediation).
RESEARCH ON THE EVALUATION SYSTEM FOR TRAINING FIELD ENGINEERS IN THE MANUFACTURING INDUSTRY OF VOCATIONAL EDUCATION UNDER THE BACKGROUND OF NEW INDUSTRIALIZATION
Authors: Yi Haibo , Meng Hao , Cao Li , Fu Qiang
Published: June 2024

In the process of promoting new industrialization, it is particularly crucial to build a high-level team of engineers. Although China has established the world's largest engineering education system, it still faces a talent gap of over 20 million, especially the scarcity of high-quality technical and skilled engineers, which has become a bottleneck restricting the sustainable development of China's industry. In this context, the on-site engineer special training program has emerged, with the first phase focusing on the advanced manufacturing industry, aiming to jointly cultivate at least 200000 on-site engineers through deep cooperation between vocational colleges and enterprises. In view of this, this article starts from the demand for talents in the manufacturing industry in China's new industrialization process, and deeply analyzes the problems and shortcomings of the current evaluation system for engineer training. On this basis, we actively explored and constructed a training and evaluation system and implementation path for vocational undergraduate on-site engineers in the manufacturing field, aiming to provide solid talent support for the transformation and upgrading of China's manufacturing industry towards high-end, digital, intelligent, and green directions, and also provide strong theoretical support for building a high-level engineering team for new industrialization.
Minced Meat Biotechnology: Quality Determination and Biological Value
Authors: Brashko Ivan S. , Donskova Lyudmila A.
Published: June 2024

The thesis presents the research results of organoleptic indicators, microstructure and biological value of minced meat using collagen-containing raw materials treated with an enzyme preparation. There was minced meat of two types – from mechanically boned poultry meat and minced beef meat with a connective tissue content of 23.6 % determined by separating muscle tissue in an average sample, weighing and appropriate calculations. The broiler chicken skin served as a collagen-containing raw material. To produce the enzyme preparation a man used secondary products obtained during the fish raw material processing. The researchers identified the proteolytic properties of collagen fermentolysate (activity 2.9 u/g); selected control and experimental samples in each group. A man introduced the fermentolysate in the experimental samples of minced meat in an amount of 0.5 % per 1 kg when grinding meat raw materials. When determining organoleptic parameters, fermentolysate impacted on the minced meat consistency associated with the protein transformation causing a change in consistency, which acquired the paste-like mass characteristics, while not deteriorating the appearance and maintaining elastic-plastic properties. Histological studies of the minced meat microstructure demonstrated a high degree of connective tissue bioconversion. The researchers studied amino acid profile of minced meat samples; calculated the difference coefficient in amino acid score, biological value, utility coefficient, and comparable redundancy coefficient. There were 18 amino acids in the samples, including all essential ones. The protein component of the experimental samples differed from the control ones by higher values with a tendency to increase the amino acid balance. The authors proved the high selective biomodification of the obtained collagen fermentolysate and its penetration depth into the minced meat system enabling to obtain a product with high organoleptic and biological values in the production of minced meat from mechanically boned poultry meat and minced meat with a high content of connective tissue.
desinformação em meio à crise do capitalismo e à configuração de uma nova estrutura de mediação social
Authors: Martins do Rêgo Barreto Helena
Published: June 2024

O texto discute a desinformação como um fenômeno associado às disputas em torno da informação, que ganha particularidades relacionadas à atual crise do capitalismo e à emergência das plataformas digitais como agentes centrais da nova estrutura de mediação social. A partir da perspectiva teórico-metodológica da Economia Política da Comunicação (EPC), critica visões deterministas e apresenta a desinformação como uma estratégia utilizada neste contexto de crise de legitimação social do capitalismo e de mudanças nas comunicações, com a datificação e a plataformização. Em diálogo com a literatura, destaca elementos centrais para a relação entre plataformas e desinformação: i) uso de dados; ii) centralidade da publicidade; iii) circulação mediada de conteúdos; e iv) autogovernação.
Espaço regional e centralidade urbana: uma discussão sobre os meios de hospedagem a partir do período sanatorial na cidade de São José dos Campos – SP
Authors: Taddeo Firoozmand Lincoln Augusto , Fonseca da Costa Sandra Maria
Published: June 2024

Este artigo apresenta uma análise sobre a centralidade urbana exercida pela cidade de São José dos Campos – SP, entre 1900 e 1940, a partir de uma discussão sobre o surgimento dos meios de hospedagem. Para o desenvolvimento da discussão proposta, optou-se por uma metodologia exploratória, de abordagem qualitativa e de revisão bibliográfica, desenvolvida a partir de dados históricos multifontes. Como resultado, constatou-se que, no primeiro decênio do século XX, a cidade de São José dos Campos, localizada na região do Vale do Paraíba – SP, possuía uma economia agrária, mas a função senatorial possibilita mudanças em sua estrutura econômica e social, em razão do desenvolvimento de atividades hospitalares voltadas à cura da tuberculose. Atraídos pelo clima, doentes buscavam na cidade tratamento para as doenças respiratórias e, pela doença, São José dos Campos se modernizou. Neste período, surgiram novas estruturas urbanas, bairros foram planejados e avenidas foram alargadas, assim como são criados os meios de hospedagem, tais como pensões e hotéis, para atender os doentes. A partir das intervenções realizadas no espaço urbano, novas centralidades surgiram no território e os meios de hospedagem se amplificaram, impulsionando a expansão do capital, a modernização da cidade e a produção social do espaço urbano.
Análise Bibliométrica e Sociométrica Da Produção Cientifica Sobre Brand Equity do campo científico do Turismo no Portal De Periódicos CAPES
Authors: Pereira Lucimari Acosta , Limberger Pablo Flores , Dos Anjos Sara Joana Gadotti
Published: June 2024

O turismo tem um efeito positivo no desenvolvimento econômico de um destino turístico. Neste contexto, a marca de destino contribui para melhorar e consolidar memórias positivas associadas a uma localização. Esta pesquisa tem como objetivo oferecer um panorama sobre a evolução da produção científica com o tema brand equity relacionado ao turismo por meio de uma análise bibliométrica das publicações de 1999 a 2020. Este estudo seguiu uma abordagem quantitativa e se caracteriza como uma pesquisa descritiva. É também pesquisa documental, pois tem como procedimentos iniciais de análise, coleta e classificação de artigos científicos. Após a etapa de classificação dos artigos, seguiu-se a bibliometria. Analisamos os processos de comunicação escrita e efetuamos o tratamento quantitativo/estatístico das propriedades comportamentais das informações registradas. Além disso, a sociometria que possibilitou a identificação de redes de cooperação social entre os atores. Observamos que o campo de pesquisa com o tema brand equity ainda é crescente e em estágio de maturidade. Os resultados revelam que em áreas do turismo como a economia, a gastronomia, o setor hoteleiro tem vindo a incorporar-se ao tema do brand equity, formando um ciclo de investigação emergente que pode ajudar a área do turismo a consolidar-se como campo de investigação.
MERCADO DE EVENTOS: UMA ANÁLISE DAS EMPRESAS ORGANIZADORAS E PRESTADORES DE INFRAESTRUTURA DE APOIO DO DISTRITO FEDERAL – BRASIL
Authors: Santos Faria Barbara Bianca , Silva Rodrigo Cardoso da , Borges Aylana Laissa Medeiros
Published: June 2024

Esse trabalho buscou identificar as empresas organizadoras de eventos no Distrito Federal-DF, com o objetivo principal de analisar a constituição do mercado de eventos.  O trabalho se centra em uma apreciação descritiva das empresas organizadoras de eventos e dos prestadores de infraestrutura de apoio a eventos. Metodologicamente a pesquisa se caracteriza como pesquisa exploratória, de natureza qualitativa, na medida em tentou-se investigar o mercado de eventos do DF. A principal base de dados utilizada para a pesquisa foi o CADASTUR, que reúne uma quantidade considerável de informações sobre prestadores de serviços turísticos. Essa base de dados possui duas categorias diretamente ligada ao mercado de eventos, são elas: 1- empresas organizadoras, 2 – empresas prestam serviços apoiadoras de eventos (infraestrutura, sonorização, decoração, dentre outros). Como resultado principal verificou-se que o Plano Piloto e o Guará são as regiões administrativas do DF que apresentam grandes aglomerado de empresas organizadoras e apoiadoras, tornando essas duas regiões administrativas com maior potencial para o desenvolvimento de eventos e da sua cadeia produtiva. Outro ponto interessante que se destaca é que a maior parte das empresas de eventos do DF são empresas de iniciativa individual. O panorama apresentado nesse trabalho mostra um pouco da realidade empresarial no setor de eventos, quando se trata de classificação e porte das empresas de eventos.
In(H)ospitalidade e turismo de intercâmbio: um estudo sobre au pairs brasileiras nos EUA
Authors: Arrais Amanda , Allis Thiago
Published: June 2024

As múltiplas dimensões e segmentações de turismo exigem que se pense sobre as variadas motivações, práticas e questões associadas às mobilidades contemporâneas. Por isso, o presente trabalho objetiva investigar as relações de hospitalidade entre au pairs e host families (famílias anfitriãs) nos Estados Unidos da América. A figura da au pair é caracterizada por uma jovem mulher oriunda de um país estrangeiro que mora com uma família anfitriã, normalmente por um período de 12 a 24 meses, para a qual presta serviços de assistência à infância. A pesquisa partiu de levantamento bibliográfico e documental sobre o tema, bem como realização de entrevistas de história oral e aplicação de questionários estruturados online com au pairs e exau pairs brasileiras vivendo nos Estados Unidos. Em linhas gerais, nota-se que, apesar da narrativa em favor das trocas culturais, há uma dimensão laboral que não deve ser ignorada e precisa ser supervisionada pelas agências mediadoras. Alguns elementos da operação do programa parecem explicar, em parte, situações de inospitalidade e hostilidade, que frustram seus objetivos oficiais.