Miracle-dz/UniFAR-FTUs huggingface dataset:
Coworking spaces and virtual learning communities in Social Networks: Case Study of #ElClaustroDeIG on Instagram

espanolLas redes sociales se consolidan como espacios de intercambio de contenidos y experiencias. No es de extranar que existan espacios de intercambio de buenas practicas docentes en las comunidades virtuales de aprendizaje, por lo que el objetivo de este estudio es analizar, a traves del estudio de caso de #ElClaustrodeIG en Instagram, los contenidos educativos enfocados a la ensenanza que se comparten para la comunidad iberoamericana en espanol, asi como el analisis de los usuarios que comparten sus experiencias y buenas practicas en esta red social. Para ello se acude a un estudio de alcance exploratorio, de diseno cuali-cuantitativo y de naturaleza correlacional-ex-plicativo. Primero se realiza un analisis de contenido a traves de una hoja de analisis (α= .695) a 300 posts y se aplica un cuestionario autoadministrado, previamente validado en constructo y contenido por juicio de expertos, a 130 usuarios de esta etiqueta en Instagram para analizar sus pautas de uso, sus intereses y motivaciones, su formacion en Tecnologias de la Comunicacion y la Informacion (TIC) y redes sociales, asi como el impacto que el uso de esta red social tiene en su desarrollo profesional y la gratificacion que esperan. Los re-sultados muestran que la mayoria de las publicaciones tratan sobre buenas practicas para la educacion primaria y preescolar, mientras que la mayoria de los usuarios piensan que Instagram es un espacio ideal para el aprendizaje no formal, aplicando en las aulas muchas de las buenas practicas compartidas en este espacio de trabajo conjunto EnglishSocial networks are consolidated as spaces for the exchange of valuable content. It is not surprising to find spaces for the exchange of good teaching practices in virtual learning communities, so the objective of this study is to analyze, through the case study of #ElClaustrodeIG on Instagram, the educational content focused on teaching that is shared for the Ibero-American community in Spanish, as well as the analysis of the users who share their experiences and good practices in this social network. In order to do this, content analysis is first carried out, through an analysis sheet to 300 posts and a questionnaire is applied to 130 users of this hashtag on Instagram in order to analyze their patterns of use, their interests and motivations, their training in ICT and social networks, as well as the impact that the use of this social network has on their professional development and the gratification they expect. The results show that most of the publications are about good practices for primary and preschool education while most of the users think that Instagram is an ideal space for non-formal learning, applying in the classrooms many of the good practices shared in this coworking space
Predictive Simulation of Seawater Intrusion Control Measures in a Coastal aquifer

Many coastal aquifers are facing seawater intrusion due to overexploitation of freshwater. In this study, the groundwater flow and solute transport in a coastal aquifer of Minjur in India were simulated considering the possible cases of aquifer recharge, freshwater draft, relocation of pumping wells, etc., using numerical modelling software. The groundwater flow model MODFLOW and solute transport model MT3D were calibrated for seven years period and validated against the dataset for two years, which gave satisfactory results . The sensitivity analysis of model parameters revealed that the horizontal hydraulic conductivity greatly influenced the hydraulic head. The model was used to predict the response of the coastal aquifer to four potential scenarios like aquifer recharge, reduced pumping, relocation of pumping wells, and a combination of these scenarios. The effectiveness of various management scenarios was evaluated based on their ability to improve groundwater level and salinity in observation wells/piezometers, reduce the affected area and restrict the advancement of the seawater-freshwater interface. The result of predictive simulation indicated that a combination of scenarios such as reduction in groundwater pumping by 25% from the semi-confined aquifer, increased pumping by 25% from the unconfined aquifer, and increased recharge from rivers by constructing check dams have the potential to restrict the seawater-freshwater interface movement and improve groundwater quality in Minjur aquifer. These control measures would effectively shift the interface towards the coast by 1.0 km in the unconfined aquifer and 1.5 km in the semi-confined aquifer by 2025.
Gravity Gradient Inversion of Gravity Field and Steady‐State Ocean Circulation Explorer Satellite Data for the Lithospheric Density Structure in the Qinghai‐Tibet Plateau Region and the Surrounding Regions

The continuous uplift and evolution of the Qinghai‐Tibet Plateau region (TPR) represents one of the most important Cenozoic geological events on Earth. The deformation mechanism of the lithosphere in the TPR is still under debate. Relevant viewpoints can be informed by investigations of the lithospheric density structure in the Qinghai‐Tibet Plateau and surrounding regions (TP‐SRs). Considering investigating the fine‐scale lithospheric density structure of the large‐scale areas, the GOCE satellite data covering entire TP‐SRs are used in this study. GOCE gravity gradient data are first subjected to several corrections. Then, based on gravity gradient curvature (SI) calculation complemented with the preconditioned conjugate gradient algorithm, the distribution of SI and the lithospheric density structure at depths of 0–80 km in TP‐SRs are obtained. The effects of temperature differences and material composition on the lithospheric density distribution are further distinguished. The results show that in the crust, the density anomalies in the TPR are blocked by the surrounding hard blocks. In the upper mantle, the distribution of the density anomalies in the TPR is predominantly affected by the northward subduction of the Indian Plate and the high heat flux environment. The Longmen Shan Thrust Belt is found to have penetrated the lower crust but has not reached the depth of the upper mantle. The density anomalies in the basins on the northern side of the TPR exhibit features indicative of independent stable blocks.
First‐mode of negative streamers: Inception at liquid/solid interfaces

SweGrids; InnoEnergy; German federal government (BMBF), Grant/Award Number: Research Programme ‘Zukunftsfaehige Stromnetze’, p; ABB Corporate Research Abstract An experimental study of the inception of the first‐mode negative streamer at liquid/solid interfaces is presented in this article. The study is performed with a point‐plane configuration under square high voltage pulses. The electrode configuration is immersed in mineral oil and the liquid/solid interface is assembled in contact with the point electrode or in its vicinity. Four polymers and two impregnated papers have been tested as solids of the liquid/solid interface. Thus, it is possible to compare the influence of different parameter of the solid and the interface on the streamer inception. For example: Permittivity, solid surface roughness, chemical composition, etc. It has been observed that streamer inception voltages at interfaces with solids of higher permittivity to that of the mineral oil are statistically similar. Additionally, streamer inception voltages of streamer initiated free in the oil (no liquid/solid interface) are similar to that of the inception voltage of cases with solids with high permittivity. In contrast, the inception voltage of streamers initiated at permittivity matched interfaces are shown to be highest of the cases. The streamer inception voltage is also studied for different distances between the liquid/solid interface and the point electrode with a permittivity matched interface. The results show a dependency of the inception voltage and the distance between the point electrode and the interface. Finally, an analysis of the observation is performed to show that the Townsend‐Meek criterion cannot predict the obtained results.
High-Speed Hybrid Multiplier Design Using a Hybrid Adder with FPGA Implementation

The major role of electronic devices is providing low power dissipation and high speed with compact area. The speed of electronic devices depends on arithmetic operations. Multiplication is the important arithmetic operation in many VLSI signal processing applications. Hence, a high-speed multiplier is needed to design any signal processing module. Many multipliers are surveyed in the literature. They are Array, Wallace tree, booth, Vedic and Compressor-based multiplier. The speed of these multipliers depends on partial product accumulation. The hybrid parallel adder-based multiplier is proposed to improve the speed of multiplication compared to the existing technique. In this technique the partial products of, two consecutive bits (multiplicands), are added simultaneously with the help of a hybrid adder (Hancarlson, Weinberger and Ling adder). The proposed architecture is synthesized and simulated using Xilinx ISE 12.1 with various FPGA boards. Synthesized report shows that the speed of proposed multiplier (Spartan 6 FPGA implementation) is improved when compared to an Array multiplier (22.14%), Wallace tree multiplier (20.41%), Multiplier using compressor (13.89%), Vedic Multiplier using CLA (13.03%), Vedic Multiplier using RCA (3.54%), Modified Booth multiplier (4.42%) and Vedic Multiplier using HCA with BEC (3.28%).
Stress Coping Strategies among Critical Care Medicine Physicians during COVID-19 Pandemic in Egypt: A Qualitative Study

BACKGROUND: Exposure of health care workers to COVID-19 virus and its consequences together with fear of being infected and died or passing the infection to their families creates negative emotions with high stress in the working environment that impact their physiological and psychological health. AIM: The objectives of the study were to explore the different stress coping strategies that reduce stress among physicians in Egypt during the COVID-19 pandemic. METHODS: A qualitative study conducted among critical care medicine physicians (n = 32) who are working in two isolation hospitals where COVID-19-confirmed patients are being treated. Semi-structured audiotaped interviews with open-ended questions for up to 45 min were conducted from March 20, 2020, to April 15, 2020. Data processing was performed based on thematic content analysis. RESULTS: The enrolled physicians (n = 32) were 35 ± 1.5 years old and about two-thirds of them were women (66%). Thematic analysis revealed that knowledge of the disease together with training of physicians on providing care in a healthy work environment, where adequate personal protective equipment are available, was important factors in reducing stress. Personal coping strategies, including psychological adjustment, spiritual interventions, and support systems, were mostly used among the interviewees. CONCLUSION: Different stress-reducing strategies were recommended by participants, and these strategies focused mainly on safety and support. Implementing and promoting these strategies by organizations and individual physicians are expected to reduce their stress and consequently promote productivity and endurance throughout the current pandemic.
Analysis of Soil Liquefaction Potential through Three Field Tests-Based Methods: A Case Study of Babol City

Landslide and particularly liquefaction have been responsible for extensive damages to infrastructures and residential lands in recent earthquakes around the world [1]-[4]. Liquefaction phenomenon is associated with the development of large pore-water pressures in soils due to cyclic loading effects of earthquakes. Consequently, effective stress reduces and soil loses its strength. The investigation of failure of soil masses during earthquakes requires sciences of geology and engineering [5], [6]. To confront destructive effects of liquefaction, the assessment of soil liquefaction potential and recognition of liquefiable regions are essential. There are several laboratory tests for evaluation of soil liquefaction potential such as cyclic triaxial and cyclic torsional shear tests. Since extracting high quality undisturbed specimens is relatively expensive and the simulation of actual field conditions in laboratory is difficult, approaches based on in-situ tests such as shear wave velocity (Vs) test, Cone Penetration Test (CPT) and Standard Penetration Test (SPT) are widely accepted for estimation of soil liquefaction. The SPT, due to its simplicity of execution, is one of the most popular in-situ testing techniques used to achieve idea about the stratigraphic profile at a site [7]-[9]. SPT-based approaches have been accepted for evaluation of soil liquefaction and Standard Penetration resistance has been utilized as an index of soil liquefaction resistance during Abstract: During earthquakes, ground failure is commonly caused by liquefaction. Thus, assessment of soil liquefaction potential in earthquake-prone regions is a crucial step towards reducing earthquake hazard. Since Babol city in Iran country is located in a high seismic area, estimation of soil liquefaction potential is of great importance in this city. For this purpose, in the present research, using field-based methods and geotechnical data (such as unit weight of soil, relative density, SPT number, shear wave velocity and cone tip resistance) of 60 available boreholes in Babol, three liquefaction maps were provided. Finally, one comprehensive liquefaction map was presented for soil of Babol city. The obtained results in this paper are well in line with the previous investigations. Based on the results, the factor of safety in 45% of the study area is less than one (liquefaction occurrence). In addition, the results indicate that since each field-based method requires particular data, applying various field tests is necessary for a more accurate liquefaction assessment.
Construct validity and reliability of the scales for rating the behavioral characteristics of superior students among a sample of elementary students in Qatar

This study tested the construct validity and reliability of the Scales for Rating the Behavioral Characteristics of Superior Students (SRBCSS) with the purpose to have a valid and reliable measure to identify the gifted individuals. The sample consisted of 176 superior students from grades five and six in Qatar. The results revealed a high consistency in rating the students by their teachers. Confirmatory factor analysis revealed that the items clustered around the 12 subscales. Also, the indicators in form of parcels produced 12 factors and two second-order factors that represent learning/personal and verbal/artistic characteristics. The results showed that those major characteristics are highly correlated and provided support to the convergent validity of the subscales. The implication of these results indicate that the subscales can be used collectively or separately to assess students’ characteristics of superiority in the Arab milieu.
Experiences of Girls Who Underwent Female Genital Mutilation/Cutting

Abstract Objective To describe the experiences of girls who have undergone FGM/C, so that efforts toward ending this practice can be scaled up using evidence-based interventions. Method: A qualitative descriptive design with in-depth interviews conducted with 16 genitally mutilated girls, aged between 12 and 19 years. Results: Four themes and 10 sub-themes were identified. The themes were: it is the right thing to do; the cold circumcision morning; life after FGM/C; FGM/C is ongoing. They experienced fear, uncertainty, pain, and helplessness due to the practice. Conclusion: The FGM/C experiences of these girls could serve as evidence to scale up efforts toward ending FGM/C.
Impact of Trade Policies and Institutions on Global Value Chain Participation in ECOWAS

This paper investigates the impacts of institutions and trade policies on Global Value Chains (GVCs) participation in ECOWAS. Leveraging on the New Trade Theory as a theoretical framework, the study estimates a gravity model consisting of 15 ECOWAS members’ countries for the period 2000–2018. The paper control for the possible endogeneity and other econometrics issues like heteroskedasticity and autocorrelation by adopting Poisson Pseudo-Maximum Likelihood estimation method. The results revealed that institutions significantly enhance GVCs participation, this positive impact was maintained even when it was disaggregated into various subcomponents. The result, however, revealed that tariffs on intermediates, infrastructures, and technology are harmful to GVCs participation in the West African region, while the impact of RTAs on GVC participation has been mixed. This implicates the objective of improving GVCs among West African States through the formation of RTAs is dependent on the harmonization and implementation of low tariffs on intermediates, improve the level of infrastructures and technology within a framework of qualitative institutions.
Beyond Dichotomous Approach, Experts Method Compatibles with an Information System View for Developing a Valid Corporate Governance Index

This paper provides a critical review of the corporate governance quantification process at academic and professional levels to scrutinize the main troubles in the black box of CG assessment models and spot some lights on how to develop a valid Corporate Governance Index (CGI) at the firm and industry levels regarding evenly the entire stakeholders' perceptions. Prior literature has been reviewed and a Corporate Governance index was constructed merging the power of multi-methodologies: Principal Component Analysis (PCA), Delphi Technique and Stability analysis. The findings show that the validity of the results necessitates enforcing End to End processes and taking into account the country's individualization to increase the reliability and comparability of the results. As well, the governance ratings are sensitive to the applied methodology, particularly, a well-known approach in quantifying CG, i.e., dichotomous approach, is underestimated the index findings then it will directly affect all aspects of governance endogeneity with firm’s performance/value. This research has important practical implications for governance guidelines setters, companies, stakeholders and other researchers. For the G setters, it underlines the necessity to make harmonization between industries' regulations and governance code, and revise the priority of the "comply or explain" approach in practice; which could serve as a roadmap for future improvements and researches. For companies, this paper highlights which effective G mechanisms and urges the role of the boardroom in monitoring and explanations for non-compliance. For CGI users, the research highlights that ratings' users should be more precautions and concerned about the base of the assessing models.
Research on the Ultrasonic Extraction of TTX by Orthogonal Design

Objective:To choose the optimal method of extracting tetrodotoxin(TTX) from puffer-fish intemal organs.We have compared the result of ultrasonic extraction method with of the method of immersion or backstreaming. Methods:ultrasonic extraction was used to the extraction process of tetrodotoxin,design L9(34) orthogonal chart to optimize the extraction of TTX,and the detection of tetrodotoxin was determinedby ultraviolet spectrophotometry with content of tetrodotoxin as markers.Results:ultrasonic time,acetic consumption,extraction times have effect on the content of extracting tetrodotoxin, And the influence of ultrasonic time was significant.The optimal extraction process was 0.1% acetic acid,3times the amount of material,ultrasonic extraction for 3 times,40 minutes each time.The ultrasonic extraction method was markedly superior to the method of immersion and backstreaming.
Body image, self-esteem and health behaviour among senior high school students in Offinso Municipality of Ashanti Region, Ghana

Body image perception has become a public health issue globally. Positive or negative feelings about one self can be influenced by individual and environmental factors. Research has shown that dissatisfaction with body image can have an impact on an individual’s quality of life including an individual’s self-esteem, interpersonal confidence, eating and exercise behaviours. This study investigated the relationship between body image, self-esteem and health behaviour and explored factors affecting body image among senior high school students in the Offinso Municipality of the Ashanti Region. A cross-sectional design with multistage sampling techniques was used to select 561 students for the study. Basic descriptive statistics such as percentage counts, frequencies, Pearson Correlation and regression analysis were used to analyse the data. Findings showed a significant relationship between body image and self-esteem (r=.587), no significant relationship between body image and health behaviour (r = -.002), and also between self-esteem and health behaviour (r = .057). Family influence (β =.361, p =.000) was the strongest predictor of body image. There were gender differences in body image (t (553) = -5.124, p = . 000, eta = . 43), self-esteem (t (553) = -5.530, p = . 000, eta = . 47) and health behaviour (t (553) = -2.083, p = . 038, eta = . 18) among students. Students who have body image concerns are more likely to have low self-esteem, whiles family could be important in helping students develop positive body image. Key words: Body image, self-esteem, health behaviour, students, Ghana.
Diverse Physiological and Physical Responses among Wild, Landrace and Elite Barley Varieties Point to Novel Breeding Opportunities

Climate change from elevated [CO2] may reduce water availability to crops through changes in precipitation and higher temperatures. However, agriculture already accounts for 70% of human consumption of water. Stomata, pores in the leaf surface, mediate exchange of water and CO2 for the plant. In crops including barley, the speed of stomatal response to changing environmental conditions is as important as maximal responses and can thus affect water use efficiency. Wild barleys and landraces which predate modern elite lines offer the breeder the potential to find unexploited genetic diversity. This study aimed to characterize natural variation in stomatal anatomy and leaf physiology and to link these variations to yield. Wild, landrace and elite barleys were grown in a polytunnel and a controlled environment chamber. Physiological responses to changing environments were measured, along with stomatal anatomy and yield. The elite barley lines did not have the fastest or largest physiological responses to light nor always the highest yields. There was variation in stomatal anatomy, but no link between stomatal size and density. The evidence suggests that high photosynthetic capacity does not translate into yield, and that landraces and wild barleys have unexploited physiological responses that should interest breeders.