Miracle-dz/UniFAR-FTUs huggingface dataset:
ADOPTION OF TECHNOLOGY PLATFORMS IN THE ELECTRIC POWER INDUSTRY: NEW OPPORTUNITIES

The paper defines the key areas of application and economic effects of platform tools in the electric power industry. This is a new approach that boosts the development of knowledge-intensive services on the basis of integration of utilities, consumers, developers and digital solutions providers into a single eco-system, which enables the accumulation and update of knowledge on the systems and processes being serviced. Using theoretical analysis and their specific hands-on experience, the authors prove that the application of platform tools delivers an economic effect through a greater volume and speed of energy transactions, the adoption of innovations by energy companies in their commercial and production operations, faster transfer of new knowledge between platform stakeholders, and creation of knowledge-intensive services for pro-active consumers on the basis of new knowledge. The scientific novelty of the study is that it gives a systemic overview of theoretical and methodological conceptions of platforms tailored for the electric power industry, which is a complex infrastructure industry, from the perspective of the economic expediency of their implementation. The findings could be of interest to various parties involved in energy and economic relations when implementing projects focusing on modernization, energy transition, energy conservation, improvement of consumer interactions with the employment of the latest communication interfaces.
Effects of 15-Days −6° Head-Down Bed Rest on the Attention Bias of Threatening Stimulus

Previous researchers have found that head-down bed rest (HDBR) will affect the emotional state of individuals, and negative emotions such as anxiety are closely related to attention bias. The present study adopted the dot-probe task to evaluate the effects of 15-days of −6° HDBR on the attention bias of threatening stimulus in 17 young men, which was completed before (Pre-HDBR), during (HDBR-1, HDBR-8, HDBR-15), after (Post-HDBR) the bed rest. In addition, self-report inventories (State Anxiety Inventory, SAI; Positive Affect and Negative Affect Scale, PANAS) were conducted to record emotional changes. The results showed that the participants’ negative affect scores on HDBR-8 were significantly lower than the HDBR-1 in PANAS while there was no significant difference on positive affect scores and anxiety scores in SAI. And the results showed that at the Pre-HDBR, HDBT-1, HDBR-15, Post-HDBR, the response speed to threatening stimulus was faster than neutral stimulus, but no statistical significance. However, reaction time of threatening stimulus is significantly longer than neutral stimulus in the HDBR-8, indicating that HDBR may have an effect on the participants’ attention bias, and this effect is manifested as attention avoidance.
Microstructural Variations in Laser Powder Bed Fused Al–15%Fe Alloy at Intermediate Temperatures

The samples of the Al–15Fe (mass%) binary alloy that were additively manufactured by laser powder bed fusion (L-PBF) were exposed to intermediate temperatures (300 and 500 °C), and the thermally induced variations in their microstructural characteristics were investigated. The L-PBF-manufactured sample was found to have a microstructure comprising a stable θ-Al13Fe4 phase localized around melt-pool boundaries and several spherical metastable Al6Fe-phase particles surrounded by a nanoscale α-Al/Al6Fe cellular structure in the melt pools. The morphology of the θ phase remained almost unchanged even after 1000 h of exposure at 300 °C. Moreover, the nanoscale α-Al/Al6Fe cellular structure dissolved in the α-Al matrix; this was followed by the growth (and nucleation) of the spherical Al6Fe-phase particles and the precipitation of the θ phase. Numerous equiaxed grains were formed in the α-Al matrix during the thermal exposure, which led to the formation of a relatively homogenous microstructure. The variations in these microstructural characteristics were more pronounced at the higher investigated temperature of 500 °C.
Fecal Microbiota Transplantation and Health Outcomes: An Umbrella Review of Meta-Analyses of Randomized Controlled Trials

Background Meta-analysis of randomized clinical trials (RCT) demonstrated several health benefits of fecal microbiota transplantation (FMT). However, there has been little comprehensive assessment of the strength and quality of evidence. We conducted an umbrella review to summarize the evidence of the association between FMT and health outcomes. Methods PubMed, Embase, and Cochrane library databases were searched from inception to August 6, 2021. The random-effects model was applied to recalculate the effect estimates. We used AMSTAR 2 and GRADE to assess the methodological quality and to grade the evidence. Results A total of 7 meta-analyses comprising 26 RCTs (median [IQR] primary study, 6 [2-7]; median [IQR] sample size, 267 [147-431] participants) were included in the current umbrella review describing 45 unique associations. There were 22 statistically significant associations (49%) demonstrating beneficial outcomes of FMT for antibiotic resistance burden, functional constipation, inflammatory bowel disease, and C. difficile infection. FMT does not appear to be associated with positive outcomes in irritable bowel syndrome and metabolic syndrome. Eight significant associations (36%) were supported by moderate-quality evidence, nine associations (41%) were supported by low-quality evidence, and the remaining associations found to be significant were supported by very low-quality evidence. Conclusion Although we found that FMT was positively associated with several outcomes, caution should be exercised in choosing this approach, given the insufficient number of primary studies, low methodological quality, and low quality of evidence. Further high-quality randomized controlled trials with long-term follow-up are needed to improve the strength and credibility of the evidence base.
The Role of Ethnic-Specific Gender Schemas in Ethnic Disparities in Adolescent Girls’ Disruptive Behavior: A Preliminary Examination

African American adolescent girls have evidenced higher levels of disruptive behavior than girls from other ethnic groups. However, most research focused on understanding disparities in these outcomes has been conducted without consideration of gender or has focused exclusively on boys. Yet, prior research suggests that anger and aggression are less gender-typed in African American youth than they are among youth from other ethnic backgrounds. The purpose of this preliminary investigation was to examine the extent to which ethnic-specific gender schemas about anger mediated the relationship between ethnicity and girls’ disruptive behavior. Participants were 66 middle school girls (24.1 % African American, 46.3 % European American; Mage= 12.06). They completed measures of ethnic-specific gender schemas about anger, reactive and instrumental aggression, and classroom disruptive behavior. Results indicated that relative to girls from other ethnic groups, African American girls had higher levels of reactive aggression and classroom disruptive behavior, both of which are rooted in anger. In contrast, no ethnic difference was found for instrumental aggression, which is not connected to anger. Ethnic-specific gender schemas about anger at least partially accounted for ethnic differences in reactive aggression and classroom disruptive behavior. Findings highlight the importance of examining gender schemas specific to ethnicity as factors in ethnic disparities in behavioral outcomes among adolescent girls.
Snowball Earth Initiation and the Thermodynamics of Sea Ice

Snowball Earth is a hypothesized state in the deep past of Earth in which the ocean was completely or nearly completely covered by sea ice, resulting from a runaway ice‐albedo feedback. Here, we address how the treatment of sea‐ice thermodynamics affects the initiation of a Snowball Earth in the global climate model ICON‐A run in an idealized slab‐ocean aquaplanet setup. Specifically, we study the impact of vertical resolution and brine pockets of ice by comparing the 3‐layer Winton and a 0‐layer Semtner scheme, and we investigate the impact of limiting ice thickness to 5 m. The internal heat storage of ice is increased by higher vertical resolution and brine pockets, which weakens surface melting and increases global albedo by allowing snow and ice to persist longer into the summer season. The internal heat storage weakens the melt‐ratchet effect, as is confirmed with offline simulations with the two ice schemes. The result is a substantially easier Snowball Earth initiation and an increase in the critical CO2 for Snowball initiation by 50%. Limiting ice thickness impedes Snowball initiation as the removal of excess ice leads to an artificial heat source. Yet, the impact is minor and critical CO2 is decreased by 5% only. The results show that while the sea‐ice thickness limit plays only a minor role, the internal heat storage of ice represents an important factor for Snowball initiation and needs to be taken into account when modeling Snowball Earth initiation.
Parametric Modelling of Layer-Configuration and Heat sink-controlled Surface Temperatures of Layered Materials

- Parametric modelling of layer-configuration and heat sink-controlled surface temperatures of layered materials is examined. This modelling is in terms of numerical-analytical basis functions and equivalent source distributions, which provide parametric representation of temperature fields within and on surfaces of layered material systems. This modelling technique can be utilized for the design and optimization of surface temperatures. Results of prototype simulations are presented that demonstrate control of temperatures on surfaces bounding layered materials, using embedded heat sinks and different types of layer configurations.
The Association Between Dissemination and Characteristics of Pro-/Anti-COVID-19 Vaccine Messages on Twitter: Application of the Elaboration Likelihood Model

Background Messages on one’s stance toward vaccination on microblogging sites may affect the reader’s decision on whether to receive a vaccine. Understanding the dissemination of provaccine and antivaccine messages relating to COVID-19 on social media is crucial; however, studies on this topic have remained limited. Objective This study applies the elaboration likelihood model (ELM) to explore the characteristics of vaccine stance messages that may appeal to Twitter users. First, we examined the associations between the characteristics of vaccine stance tweets and the likelihood and number of retweets. Second, we identified the relative importance of the central and peripheral routes in decision-making on sharing a message. Methods English-language tweets from the United States that contained provaccine and antivaccine hashtags (N=150,338) were analyzed between April 26 and August 26, 2021. Logistic and generalized negative binomial regressions were conducted to predict retweet outcomes. The content-related central-route predictors were measured using the numbers of hashtags and mentions, emotional valence, emotional intensity, and concreteness. The content-unrelated peripheral-route predictors were measured using the numbers of likes and followers and whether the source was a verified user. Results Content-related characteristics played a prominent role in shaping decisions regarding whether to retweet antivaccine messages. Particularly, positive valence (incidence rate ratio [IRR]=1.32, P=.03) and concreteness (odds ratio [OR]=1.17, P=.01) were associated with higher numbers and likelihood of retweets of antivaccine messages, respectively; emotional intensity (subjectivity) was associated with fewer retweets of antivaccine messages (OR=0.78, P=.03; IRR=0.80, P=.04). However, these factors had either no or only small effects on the sharing of provaccine tweets. Retweets of provaccine messages were primarily determined by content-unrelated characteristics, such as the numbers of likes (OR=2.55, IRR=2.24, P<.001) and followers (OR=1.31, IRR=1.28, P<.001). Conclusions The dissemination of antivaccine messages is associated with both content-related and content-unrelated characteristics. By contrast, the dissemination of provaccine messages is primarily driven by content-unrelated characteristics. These findings signify the importance of leveraging the peripheral route to promote the dissemination of provaccine messages. Because antivaccine tweets with positive emotions, objective content, and concrete words are more likely to be disseminated, policymakers should pay attention to antivaccine messages with such characteristics.
Literature mapping of electrical discharge machining (EDM) system

Electrical Discharge Machining (EDM) is a non-traditional machining process used for end pieces in application of aerospace, automotive industry and many manufacturing industries. The process removes the material from a workpiece by a series of frequent electrical discharges between the electrode tool and the work piece in a dielectric fluid environment. Duet the non-direct contact between the workpiece and the electrode during the machining process, mechanical stresses and chatte vibration issues are eliminated.This paper presents a review of EDM particularly in control system, Material Removal Rate(MRR) and power generator design and development.
Comparison of the Anti-bacterial Efficacy of Saussurea costus and Melaleuca alternifolia Against Porphyromonas gingivalis, Streptococcus mutans, and Enterococcus faecalis: An in-vitro Study

The aim was to compare the in-vitro antibacterial effectiveness of two herbal extracts (a) Saussurea-costus (S. costus) and (b) Melaleuca-alternifolia (M. alternifolia) against Porphyromonas gingivalis (P. gingivalis), Streptococcus mutans (S. mutans) and Enterococcus faecalis (E. faecalis). Aqueous extracts from M. alternifolia were prepared by adding 2 grams of S. costus and M. alternifolia, respectively to 100 ml distilled water. Bacterial strains of P. gingivalis, E. faecalis and S. mutans were treated into 3 groups. In groups 1 and 2, bacterial strains were treated with aqueous extracts of S. costus and M. alternifolia, respectively. In the control-group, bacterial strains were exposed to distilled water. Antibacterial activity of the samples and nanoparticles was determined. The minimum-inhibitory-concentration (MIC) values were determined using the microdilution method. P < 0.01 was considered statistically significant. The MIC for all bacterial strains treated with S. costus was significantly higher than that of M. alternifolia (P < 0.001). There was no significant difference in MIC for strains of P. gingivalis, E. faecalis and S. mutans treated with S. costus. For bacterial strains treated with M. alternifolia, the MIC was significantly higher for P. gingivalis compared with E. faecalis and S. mutans strains (P < 0.01). There was no difference in MIC for E. faecalis and S. mutans strains treated with M. alternifolia. The in-vitro antibacterial efficacy of M. alternifolia is higher than S. costus against P. gingivalis, E. faecalis and S. mutans.
BnKAT2 Positively Regulates the Main Inflorescence Length and Silique Number in Brassica napus by Regulating the Auxin and Cytokinin Signaling Pathways

Brassica napus is the dominant oil crop cultivated in China for its high quality and high yield. The length of the main inflorescence and the number of siliques produced are important traits contributing to rapeseed yield. Therefore, studying genes related to main inflorescence and silique number is beneficial to increase rapeseed yield. Herein, we focused on the effects of BnKAT2 on the main inflorescence length and silique number in B. napus. We explored the mechanism of BnKAT2 increasing the effective length of main inflorescence and the number of siliques through bioinformatics analysis, transgenic technology, and transcriptome sequencing analysis. The full BnKAT2(BnaA01g09060D) sequence is 3674 bp, while its open reading frame is 2055 bp, and the encoded protein comprises 684 amino acids. BnKAT2 is predicted to possess two structural domains, namely KHA and CNMP-binding domains. The overexpression of BnKAT2 effectively increased the length of the main inflorescence and the number of siliques in B. napus, as well as in transgenic Arabidopsis thaliana. The type-A Arabidopsis response regulator (A-ARR), negative regulators of the cytokinin, are downregulated in the BnKAT2-overexpressing lines. The Aux/IAA, key genes in auxin signaling pathways, are downregulated in the BnKAT2-overexpressing lines. These results indicate that BnKAT2 might regulate the effective length of the main inflorescence and the number of siliques through the auxin and cytokinin signaling pathways. Our study provides a new potential function gene responsible for improvement of main inflorescence length and silique number, as well as a candidate gene for developing markers used in MAS (marker-assisted selection) breeding to improve rapeseed yield.
Compact and wideband millimetre wave circularly polarised antenna array based on a SICL to waveguide transition

In this study, a planar compact circularly polarised antenna array is proposed for 71-78 GHz E-band applications. The antenna array consists of four cavity-backed patch antennas, which are fed by substrate integrated coaxial line (SICL). A novel waveguide-to-SICL transition is introduced to serve as a power divider for simplifying the sequential-rotation feed network. The achieved bandwidth with S 11 <; -10 dB is 19.9% (68.1-83.2 GHz). The measured axial ratio bandwidth below 3 dB is about 9.3% (71-78 GHz) and the measured peak gain is 12.3 dBi. The measured data are in good agreement with the simulated results.
An Analytical Expression for a Class of Parametric Payoff Functions

A parameteric representation of the pricing formula, and its delta, for a class of payoff functions of the form (ST−S0)n is obtained. The parameters S0 and n are free to refer to any arbitrary quantity not depending on ST , which is the possible underlying value at maturity. The integral corresponding to the expected value of these payoff functions are explicitly evaluated for any region over which the payoff is defined.Two specific cases from this class have been studied in more detail. The first example considers the European vanilla options. It is shown that once the payoff specification equals the European option’s, the pricing formula reduces to the well-known Black-Scholes equation. For the second case, a new series of payoff specifications, from the class, with non-linear properties, and their corresponding analytical pricing formula, are presented. Numerical examples of these derivatives are also given and the analytical results are compared with the results obtained from the binomial and trinomial tree methods. It is seen that both trees require higher number of nodes for non-linear cases, to exhibit the same convergence, as the linear cases.
Imagination, education for the future and democratic culture: Educational policies in the Iberian Peninsula

In a historical moment, where the future is considered a threat, it seems highly relevant to teach the ability to imagine desirable futures. In line with this, Education for the Future (EF), from the Anglo-Saxon tradition, represents a reference to give a response to negative images about the idea of the future. On the other hand, the competences for democratic culture defined by the Council of Europe provide the basis for the elaboration of a theoretical framework that includes the imagination of democratic and sustainable futures as one of its main conceptual axes. Given this theoretical context, this study analyses official documents of public policies carried out in the Iberian context, to examine the treatment of the idea of future in education systems. Specifically, three levels of public policies have been studied: state educational laws, primary education curricula and institutional teacher training policies. The public policies have been analysed using the normative method of content analysis, with a syntactic sampling strategy, calculating the absolute and relative frequency of the units of analysis. Results show that there are few references to the construction of the concept of the future in public policies and suggest that the opportunity to educate others on the imagination of desirable futures may be being wasted. En un momento histórico en el que el futuro se concibe como una amenaza, parece altamente relevante educar en la capacidad de imaginar futuros deseables. En esta línea, la Educación para el Futuro (EpF), de tradición anglosajona, representa una referencia de trabajo para responder a las imágenes negativas sobre la idea del provenir. Por otro lado, las competencias de cultura democrática definidas por el Consejo de Europa dan pie a la elaboración de un marco teórico que incluye la imaginación de futuros democráticos y sostenibles como uno de sus principales ejes conceptuales. Dada esta interjección teórica, el presente estudio analiza documentos oficiales de políticas públicas llevadas a cabo en ámbito ibérico, para examinar el tratamiento de la idea de futuro en los sistemas educativos. Concretamente, se han estudiado políticas públicas a tres niveles: leyes educativas estatales, currículos de Educación Primaria y políticas institucionales de formación docente, para indagar cuál es la presencia del eje conceptual sobre la imaginación de futuros en estos documentos. Las políticas públicas han sido analizadas mediante el método normativo de análisis de contenido, con una estrategia de muestreo sintáctico, calculando la frecuencia absoluta y relativa de unidades de análisis. Los resultados muestran que hay escasas referencias a la construcción del concepto de futuro en las políticas públicas, y dan a entender que se puede estar desaprovechando la oportunidad de educar para la imaginación de futuros deseables.
Predictive Value of the (Quick)DASH Tool for Upper Extremity Dysfunction Following Percutaneous Coronary Intervention

Purpose The use of the Disability of the Arm, Shoulder and Hand (DASH) questionnaire and its shortened version, the QuickDASH, have been used to assess upper extremity function following a transradial percutaneous coronary intervention (TR-PCI). However, the use of these scores has not yet been validated for TR-PCI induced complications in the upper extremity. The aim of this study was to establish the validity of the DASH and the QuickDASH, for the assessment of upper extremity dysfunction following a transradial percutaneous coronary intervention (TR-PCI). Patients and Methods This study was a diagnostic retrospective analysis of the ARCUS study, of whom 440 underwent TR-PCI and 62 control patients were treated via the transfemoral approach. All participants completed the DASH and QuickDASH questionnaire prior to the procedure and at each follow-up visit up to six months of follow-up. Receiver operating characteristics (ROC) were constructed to determine the validity of the questionnaires, using physical examinations to determine the occurrence of upper extremity dysfunction, according to the ARCUS study. Results At each follow-up moment, the area under the curve (AUC) showed a poor ability of the DASH and QuickDASH to discriminate between patients with and without upper extremity dysfunction (AUC: 0.565–0.586). There was no significant difference between the questionnaires (p > 0.05). Conclusion The DASH and QuickDASH questionnaires are both equally incapable of discriminating between patients with and without upper extremity dysfunction following a TR-PCI. Study results suggest that the DASH and QuickDASH questionnaires are incapable of discerning changes in upper extremity function as a result of procedural complications following a TR-PCI vs cardiac induced activity cessation.