Miracle-dz/UniFAR-FTUs huggingface dataset:
Influence of Perceived Interactivity on Continuous Use Intentions on the Danmaku Video Sharing Platform: Belongingness Perspective

ABSTRACT The continuous use intention in users is vital to the development strategy of video sharing platforms, and it creates intensive competition among providers. At present, academic research on video sharing platform users focuses on analysis of social behavior in the videos from the perspectives of the online community, media communications, social network fatigue, and motivations to use the video sharing platform, or looks at video classification based on user-generated text data. However, from the perspectives of belongingness and intentions to continue using the danmaku video sharing platform, there is a lack of quantitative analysis. Therefore, this paper intends to enrich this part of the research based on the stimulus organism response (SOR) theory, adding perceived interactivity and belongingness to constitute structural equation modeling (SEM). This study investigates the mediating effect of belongingness and the influence from five dimensions of perceived interactivity on satisfaction and belonging, and goes even further to continuance intentions in the context of the danmaku video sharing platform. The results indicate that belongingness mediates the impact on continuance intention from control, playfulness, and responsiveness. Satisfaction relates positively to belongingness in danmaku video sharing platform users, which further significantly impacts their continuance intentions.
Dynamic Modeling and Control of BDFRG under Unbalanced Grid Conditions

The Brushless Doubly-Fed Reluctance Generator (BDFRG) is a potential alternative to the Doubly Fed Induction Generator (DFIG) in wind power applications owing to its reasonable cost, competitive performance, and high reliability. In comparison with the Brushless Doubly-Fed Induction Generator (BDFIG), the BDFRG is more efficient and easier to control owing to the cage-less rotor. One of the most preferable advantages of BDFRG over DFIG is the inherently better performance under unbalanced grid conditions. The study conducted in this paper showed that conventional vector control of the BDFRG results in excessive oscillations of the primary active/reactive power, electromagnetic torque, and primary/secondary currents in this case. In order to address such limitations, this paper presented a new control strategy for the unbalanced operation of BDFRG-based wind generation systems. A modified vector control scheme was proposed with the capability to control the positive and the negative sequences of the secondary currents independently, thus greatly reducing the adverse implications of the unbalanced supply. The controller performance has been validated by simulations using a 1.5 MW BDFRG dynamical model built upon the positive and negative sequence equations. The main benefits of the new control strategy are quantified in comparison with conventional PI current control design.
Ammunition Type Optimization Based on Damage Ability Matching

At present, there exist many kinds of new ammunition, with great differences in application occasions. In the process of ammunition preparation, it is usually necessary to configure a variety of ammunition to meet the needs of attacking different targets. It is essentially a multiple criteria decision-making problem to select the appropriate ammunition type for different targets and provide a reliable decision support for accurate ammunition support. On this basis, the matching degree of ammunition target damage ability is selected as the ammunition type optimization standard, the objective weighting method, entropy weight method, is selected to determine the evaluation index weight, and the VIKOR method is used to gather the ammunition type optimization evaluation value, which overcomes the uncertainty caused by subjective weighting and the information loss caused by index value conversion and takes into account the group benefit value and individual regret value. Through an example, the sensitivity analysis of the decision mechanism coefficient in the VIKOR method is carried out, and the results are compared with those of the TOPSIS method to verify the stability and effectiveness of this method in the process of ammunition type optimization.
PHYTOCHEMICAL SCREENING AND IN VITRO ANTIOXIDANT POTENTIAL OF TRIBULUS TERRESTRIS FRUIT AND MESUA FERREA FLOWER EXTRACTS: A COMPARATIVE STUDY

Objective: This study aimed to investigate the antioxidants and free radicals scavenging properties of ethanolic extracts from Tribulus terrestris fruit (TTF) and Mesua ferrea flower (MFF). Methods: The antioxidant and free radical scavenging activities were measured by using standard protocols against phytoextracts used at 50, 100, 150, 200 and 250 µg/ml concentration. Total phenolic and flavonoid content were estimated using Folin-Ciocalteu and aluminium-chloride reagent assay methods. Results: Among the extracts, MFF showed the highest total antioxidant ability followed by TTF. With regard to various scavenging activities, MFF had the highest radical scavenging activity than TTF extract closely resembled the standards. Also, the reducing capacity on ferrous ion was high in MFF than TTF. The quantified phenolic contents of TTF and MFF ethanolic extracts were 27.0±0.36 and 57.0±0.32 mg gallic acid equivalent per gram extract respectively. A positive correlation (p value<0.001) was observed between phenolic content and free radical scavenging efficiencies. Conclusion: The results confirm that both MFF and TTF are important sources of natural antioxidants and serves as an effective free radical scavengers and/or inhibitors. Hence, both extracts are suitable plant-based pharmaceutical products can be used to handle 'free radical-mediated diseases.
Prices for a second‐generation biofuel industry in Canada: Market linkages between Canadian wheat and US energy and agricultural commodities

The production of biofuels is limited in Canada, but the availability of wheat straw as a second‐generation (i.e., cellulosic) feedstock is an exciting prospect for the future development of a biofuel industry. The future success of such a biofuel industry will depend on future ethanol prices and prices related to wheat straw. These prices are likely to be influenced by markets related to the existing first‐generation ethanol industry in the United States. Therefore, the motivation of this paper is to investigate relationships between Canadian wheat prices and US corn, ethanol, and gasoline prices. We employ a DCC‐MGARCH enhanced VEC model to investigate time‐varying relationships among these markets. Results indicate that there are positive relationships between wheat and corn, ethanol and corn, and wheat and ethanol markets. Our results add to a better understanding of the level of integration between select Canadian agricultural markets and US energy markets. More specifically, the price relationships identified highlight several sources of price risk that may affect the financial success of commercially producing second‐generation ethanol from wheat straw in Canada. This information will be of particular interest to prospective industry investors and policymakers. La production de biocarburants est limitee au Canada, mais la disponibilite de paille de ble comme matiere premiere est une perspective interessante pour le developpement futur d'une industrie des biocarburants de deuxieme generation (c.‐a‐d. cellulosique). Le succes futur d'une telle industrie des biocarburants dependra des prix futurs de l'ethanol et des prix lies a la paille de ble. Ces prix sont susceptibles d'etre influences par les marches lies a l'industrie actuelle de l'ethanol de premiere generation aux Etats‐Unis. Par consequent, la motivation de cet article est d'etudier les relations entre les prix du ble canadien et les prix du mais, de l'ethanol et de l'essence aux Etats‐Unis. Nous utilisons un modele VEC ameliore DCC‐MGARCH pour etudier les relations variant dans le temps entre ces marches. Les resultats indiquent qu'il existe des relations positives entre les marches du ble et du mais, de l'ethanol et du mais, et du ble et de l'ethanol. Nos resultats contribuent a une meilleure comprehension du niveau d'integration entre certains marches agricoles canadiens et les marches energetiques americains. Plus precisement, les relations de prix identifiees mettent en evidence plusieurs sources de risque de prix qui peuvent affecter le succes financier de la production commerciale d'ethanol de deuxieme generation a partir de paille de ble au Canada. Ces informations seront particulierement interessantes pour les investisseurs potentiels et les decideurs politiques.
Influencing factors of accounting practices: a case study of New Zealand

Accounting practices in different countries influenced by several factors. This study has identified some factors those have a great impact on accounting practices in different countries. This study also explains the accounting practices in a specific country: New Zealand, which is one of the developed counties in the South Pacific Ocean close to Australia and a member of commonwealth countries. However, this study is a desk-based research that analyses the existing knowledge on factors influencing accounting practices from different published academic articles, reports, periodicals and webpages. This study found that accounting policies and standards in New Zealand came from Australia and the United Kingdom, and International Financial Reporting Standards (IFRS) and the External Reporting Board (XRB) are the most influential body of New Zealand for setting up standards for its local demand. Moreover, New Zealand ensures good accounting practices because of having political stability, economic growth, and transparent systems in all public and private sectors. However, this study would be an excellent addition of knowledge on factors affecting accounting practices. Keywords: International financial reporting standards (IFRSs), external reporting board (XRB), accounting practices, factors, New Zealand.
Philosophical Aspects of Astrobiology Revisited

Given the idea that Life as we know it is nothing but a special form of a generically underlying dynamical structure within the physical Universe, we try to introduce a concept of Life that is not only derived from first principles of fundamental physics, but also metaphysically based on philosophical assumptions about the foundations of the world. After clarifying the terminology somewhat, especially with a view to differentiating reality from modality, we give an example for a mathematical representation of what the substance of reality (in the traditional sense of metaphysics) could actually mean today, discussing twistor theory as an example. We then concentrate on the points of structural emergence by discussing the emergence of dynamical systems and of Life as we know it, respectively. Some further consequences as they relate to meaning are discussed in the end.
An exploration of the domains of the inequality trajectory in Zimbabwe

ABSTRACT Pervasive natural climatic shocks and poverty combine to reinforce inequalities in Zimbabwe. Despite commitments to poverty eradication and socio-economic transformation through Sustainable Development Goals and the incoming Government of Zimbabwe’s socio-economic blueprint National Development Strategy 2021–2025, robust poverty mitigation gaps still exist. The aim of the article is to explore the domains of inequality in Zimbabwe. The article is secondary literature-based and relies on various applied action research studies, journal articles, evaluations commissioned by different Zimbabwean state and non-state actors. The article concludes by identifying pathways by which more robust pro-poor interventions can achieve desired outcomes of galvanising the social functioning of the Zimbabwean vulnerable.
Spatial Effects of Urban-Rural Ditch Connectivity Gradient Changes on Water Quality to Support Ditch Optimization and Management

Ditch networks play crucial roles in regulating water fluxes with their surroundings. The connectivity of ditches can have great impacts on nutrient migration and transformations. However, connectivity patterns related to ditch networks have rarely been studied, especially the relationships with water quality assessed through spatial analysis. This paper considered ditch connectivity and water quality indicators comprehensively, using spatial autocorrelation and geographically weighted regression (GWR) models, to analyze the impact of ditch connectivity on water quality from urban to rural gradients. The results suggested that water quality in rural areas and towns was better than in suburbs and transition zones, and the different areas exhibited variable spatial ditch connectivity. The Moran’s I index of the connectivity indicators showed the clustering state of spatial distribution, with ditch connectivity explaining 61.06% of changes in water quality. The circularity and network connectivity of the ditches had the most influence on water quality. However, the degree of influence varied with region. Circularity had the greatest impact on water quality in urban areas, and network connectivity had the greatest impact on water quality in township areas. Therefore, future water improvement projects, based on ditch optimization and management, need to consider the more related influencing factors and their spatial differences.
Barriers and corridors of gene flow in an urbanized tropical reef system

Information about the distribution of alleles among marine populations is critical for determining patterns of genetic connectivity that are essential in modern conservation planning. To estimate population connectivity in Singapore's urbanized equatorial reef system, we analysed single nucleotide polymorphisms (SNPs) from two species of reef‐building corals with distinct life histories. For Porites sp. , a broadcast‐spawning coral, we found cryptic lineages that were differentially distributed at inshore and central‐offshore sites that could be attributed to contemporary surface current regimes. Near panmixia was observed for Pocillopora acuta with differentiation of colonies at the farthest site from mainland Singapore, a possible consequence of the brooding nature and relatively long pelagic larval duration of the species. Furthermore, analysis of recent gene flow showed that 60–80% of colonies in each population were nonmigrants, underscoring self‐recruitment as an important demographic process in this reef system. Apart from helping to enhance the management of Singapore's coral reef ecosystems, findings here pave the way for better understanding of the evolution of marine populations in South‐East Asia.
Determinants of Investments in Energy Sector in Poland

There is much research about the determinants of investments, but there is a shortage of similar studies for Poland. Therefore, the overall goal of the paper is to analyze the determinants of investments made by enterprises from the energy sector as well as their delays in Poland in the years 2000–2019. In this period, a strong growth of investments in energy was observed in the country. In connection to this, the authors set four hypotheses and verified them with the following statistical methods: canonical analysis, linear and causality correlation, autocorrelation and cointegration tests. The paper found that there is a relationship between public consumption and investment spending of small enterprises in Poland. That means that only some macroeconomic parameters are connected with investments. Moreover, the changes in the value of past investments has a negative influence in current investments.
PDBx/mmCIF: the foundation for the wwPDB OneDep system

OneDep, a system for the deposition, biocuration, and validation of experimentally determined structures of biological macromolecules submitted to the Protein Data Bank (PDB) archive, has been developed as a global collaboration by the Worldwide Protein Data Bank partners (wwPDB, http://wwpdb.org)(Berman et al., 2003; Young et al., 2017). This system was designed to ensure that the wwPDB could meet the challenges of rapidly evolving technologies in structural biology and the evolving archiving requirements of the scientific community over the coming decades. The OneDep system is underpinned by a flexible data architecture based on the PDBx/mmCIF dictionary (http://mmcif.wwpdb.org)(Westbrook et al., 2005). OneDep software tools leverage PDBx/mmCIF dictionary metadata to: validate data integrity; produce structure and experimental data files in multiple file formats; define data transformations required for cross-repository data exchange; and define mappings between the schema of a variety of database implementations. Extensibility is another key feature of PDBx/mmCIF dictionary technology enabling the wwPDB to respond to a rapidly evolving scientific landscape. To support scientific advancement and ensure the highest data quality and completeness, a working group of community experts in structural biology software works with the wwPDB to define new data content and implement these content extensions in software tools across the structure determination pipeline. This talk will present how PDBx/mmCIF has been incorporated into the wwPDB OneDep data and software architecture, and how this architecture is enabling the development of more informative versioning of data in the PDB repository.
Consciously Constructing Heterojunction or Direct Z-Scheme Photocatalysts by Regulating Electron Flow Direction

Heterojunction and direct Z-scheme nanostructures are two typical representatives of an efficient photocatalyst, which is composed of two semiconductors. However, it is a great challenge to construct each of them on purpose. The photodeposition technique can be a potentially powerful tool to regulate the electron flow direction for constructing these nanostructures. In this report, CdS nanoparticles were deposited on the g-C3N4 nanosheets by photodeposition and chemical deposition methods for comparison. In the photodeposition case, PL and charge flow tracking demonstrate that a type II heterojunction is constructed because CdS is selectively deposited at the electron transfer site of g-C3N4, which leads to the photoexcited electron from g–C3N4 tending to transfer to CdS in the composites. In the latter, the CdS is randomly deposited onto the g-C3N4 nanosheets through chemical deposition. There is no preferred site for deposition or charge transfer in the composite. The results illustrate that the electro.
Prospect of Increased Disruption to the QBO in a Changing Climate

The quasi‐biennial oscillation (QBO) of tropical stratospheric winds was disrupted during the 2019/20 Northern Hemisphere winter. We show that this latest disruption to the regular QBO cycling was similar in many respects to that seen in 2016, but initiated by horizontal momentum transport from the Southern Hemisphere. The predictable signal associated with the QBO's quasi‐regular phase progression is lost during disruptions and the oscillation reemerges after a few months significantly shifted in phase from what would be expected if it had progressed uninterrupted. We infer from an increased wave‐momentum flux into equatorial latitudes seen in climate model projections that disruptions to the QBO are likely to become more common in future. Consequently, it is possible that in the future, the QBO could be a less reliable source of predictability on lead times extending out to several years than it currently is.
Carbon and fossil resource depletion footprints of milk production from Canterbury dairy farms

Among the different sustainability metrics, the carbon footprint is the most commonly reported, but the depletion of non-renewable resources such as fossil fuels, is also important. This study aimed to calculate the “cradle to farm-gate” carbon and fossil resource depletion footprint of milk production in Canterbury, New Zealand, comparing two different farm systems: one pasture-based with a relatively small amount of brought-in feed (Lincoln University Dairy Farm, LUDF) and an average Canterbury farm. The estimate of the carbon footprint of milk production was 0.68 and 0.80 kg CO2-eq/kg of fat and protein-corrected milk (FPCM) for the LUDF and Canterbury average, respectively. The main contributor to the carbon footprint for both farms was enteric fermentation, but differences were found mainly in the emissions from the supplementary feed. Conversely, the Canterbury average farm showed lower fossil resource depletion footprint (1.05 MJ/kg FPCM) when compared with the LUDF farm (1.13 MJ/kg FPCM). The differences were mainly related to fertiliser use. However, this difference is small if compared with farms overseas. The study shows that it is important to look at more than one environmental metric when proposing mitigation practices.
Kinetics of Mixing-Assisted Oxidative Desulfurization of Dibenzothiophene in Toluene Using a Phosphotungstic Acid/Hydrogen Peroxide System: Effects of Operating Conditions

Mixing-assisted oxidative desulfurization (MAOD) of model fuel that contains dibenzothiophene (DBT) using phosphotungstic acid (HPW) as a catalyst and hydrogen peroxide (H2O2) as an oxidant was evaluated. Characterization analysis of HPW shows that the average crystallite size is 82.39 nm, with a disintegrated structure and morphology. The effect of operating parameters, such as mixer speed (5000–10 000 rpm), tetraoctylammonium bromide [phase-transfer agent (PTA)]/HPW ratio (0.5:1–5:1), and temperature (25–60 °C), on the sulfur conversion of DBT was examined. Results show that the sulfur conversion increases with an increasing temperature and mixer speed and a lower amount of PTA. The highest sulfur removal and rate constant of 100.0% and 0.1528 min–1, respectively, were attained under the following conditions: 1:1 ratio, 40 °C, and 10 000 rpm. The pseudo-first-order equation and Arrhenius equation were applied to determine the kinetic rate constant and activation energy of HPW in the oxidation of DBT in .
Disorders, Vulnerabilities and Resilience in the Supply Chain in Pandemic Times

The economic and social environment caused by the COVID-19 pandemic has brought additional pressure on supply chains because they now have more pressure to develop and adapt to a context of economic constraint. Delays in the supply chain can bring consequences such as the lack of food products by retailers, transporters and manufacturers. Thus, this study aims to examine the supply chain during the COVID-19 pandemic in small- and medium-sized food companies in the central region of Portugal, identifying potential problems and pointing out the respective solutions. For this purpose, the study uses a qualitative methodology through semi-structured interviews. It was found that small and medium-sized enterprises (SMEs) do not have a codified supply chain and that generally, these companies have a minimal budget, which requires a constant search for new suppliers that represent a reduction in costs. Moreover, most of the companies surveyed faced unexpected challenges, such as a lack of alternative suppliers. The present paper is original because it studies the supply chain in SMEs in the food sector during the COVID-19 pandemic, and it allows the ascertainment of practical suggestions for these companies to improve, as well as contributing to the clarification of the literature on the supply chain in times of crisis such as the current COVID-19 pandemic.