Miracle-dz/UniFAR-FTUs huggingface dataset:
European Journal of Foreign Language Teaching-ISSN 2501-1754

While the role of emotions in language learning is getting more and more attention in second language research, relatively few studies have investigated emotions related to specific classroom activities. This mixed-method practitioner research examined tertiarylevel EFL learners’ affective reactions to a specific type of oral presentation: the pair presentation. The aim of the study was to examine whether making a classroom presentation feels to be a more positive and less anxiety-provoking experience if done in pairs rather than individually. 33 English Studies students were asked to choose a presentation partner and give a 10-20 minute joint presentation in one of their regular language development classes. Immediately after the talk, they were asked to indicate on two 10-point rating scales how pleasant/unpleasant they felt during the task and how much anxiety they experienced. Additionally, they were invited to reflect on their experiences in greater depth within 24 hours, responding to a set of open questions. The results of the study are discussed in comparison to those of an earlier investigation in the same setting, which focused on the emotional experience of individual presentation (Tóth, 2019). While the numerical findings suggest that presenting with a partner is neither less anxiety-provoking nor a substantially more positive experience, the post-task reflections show that most participants approve of the idea of pair presentation and only a minority of them prefer individual presentation. Providing insights into the complexities of learners’ emotional experiences and the practicalities of how they prepared for the joint presentation, the study sheds light on these conflicting results and has important implications for language teachers. i Correspondence: email toth.zsuzsa98@yahoo.com Zsuzsa Tóth TWO HEADS BETTER THAN ONE? PAIR PRESENTATION IN THE EFL CLASSROOM – A PANACEA FOR ANXIETY? European Journal of Foreign Language Teaching Volume 5 │ Issue 5 │ 2021 104
Reliability of the isometric mid-thigh pull peak force in Irish schoolboy rugby players

Background Maximal strength is a key variable within youth rugby union and is therefore of merit when testing and monitoring youth rugby athletes. Isometric mid-thigh pull peak force (IMTP PF) has been observed to be a reliable, valid, and safe means of assessing maximal strength in previously researched cohorts. Currently, there exists a distinct lack of literature with regards to the use of IMTP PF with non-elite youth athletes. Objectives (1) Investigate the intra-day reliability of the IMTP PF with respect to the three age-grades of Irish schoolboy rugby union, (2) investigate the inter-day reliability of the IMTP PF within Irish schoolboy rugby union. Methods The current study utilised self-selected body positions of 84 non-elite schoolboy rugby union athletes (age: 14.7 ±1.7 years; height: 170.6 ±10.3 cm; mass: 63.9 ±14.8 kg). Results IMTP PF was observed to be a reliable measure of peak force both inter- and intra-day (Intra-day: Coefficient of Variation 3.3%; Interclass Correlation Coefficient 0.99; 95% Confidence Interval 0.99 – 1.00; Inter-day: Coefficient of Variation = 5.1%; Interclass Correlation Coefficient 0.99; 95% Confidence Interval 0.98 – 1.00). A change of 10.9 kg should be deemed worthwhile when working with Irish schoolboy rugby players. Conclusion The IMTP PF is a safe and reliable measure of maximal strength in non-elite youth rugby athletes.
Home Quarantine Challenges and Psychological Status of Bangladeshi University Students during COVID-19

The study determined the home quarantine challenges and psychological status of Bangladeshi University students in the COVID-19 pandemic break-out. The study also looked into the impact of home quarantine challenges on the psychological status of the student. A well-structured questionnaire was created and circulated to respondents through various social media platforms and utilized the snowball sampling technique. A total of 250 graduate and undergraduate students were taken as respondents of this study. Statistical Packages for Social Science (SPSS) software was used to complete the data analysis procedure. The findings of the study show that the most noteworthy home quarantine challenges for Bangladeshi University students are the lack of awareness of home quarantine advantages (82%), insufficient financial support from their families (78%), and unsatisfactory medical support (77%). Also, home quarantine challenges are positively connected to psychological status (r=.364**) and it had a significant impact (β=.287, p<0.00) on psychological status in the pandemic period. The study also aided the policymakers in the better understanding of home quarantine challenges and the psychological status of Bangladeshi students. However, out of seven divisions in Bangladesh only students of Dhaka and Sylhet were selected to be the respondents. This caused difficulty in generalizing the findings of the study.
Evaluation of plasma PDGF and VEGF levels after systemic administration of activated autologous platelet-rich plasma

Introduction and Aim: Activated autologous platelet-rich plasma (aaPRP) is becoming a popular therapy to accelerate healing in the field of plastic surgery. Platelets, which are abundant in aaPRP, can release many growth factors including platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF). This study aims to examine the plasma levels of PDGF and VEGF in healthy subjects after intravenous administration of aaPRP. Materials and Methods: Nine healthy patients with no prior history of metabolic disease were divided into two groups (control and experiment group). The treatment group which consists of six patients received intravenous aaPRP treatment. The preparation of aaPRP starts with the collection of 24 mL of whole blood in sodium citrate tubes followed a two-step centrifugation procedure and subsequent chemical activation. aaPRP was then administered intravenously to patients. Meanwhile, the control group received no intervention. Venous blood samples were taken before and one week after the treatment and the plasma PDGF and VEGF levels were determined by enzyme-linked immunosorbent assay (ELISA). Results: The treatment group showed statistically significant increase in VEGF after 7 days compared to before aaPRP administration. However, the change in PDGF levels of the treatment group was unnotable. Conclusion: The present findings indicate that intravenous administrations of activated aaPRP may increase plasma VEGF level up to 1 week after aaPRP administration.
Comprehensive Research of 10C Nucleus Using Different Theoretical Approaches

We perform an extensive theoretical analysis of 10C nucleus with the use of various theoretical approaches involving the different nuclear potentials and different density distributions, as well as a simple cluster approach. We try to explain new measured and challenging experimental data on the 10C + 58Ni system at 35.3 MeV. First, we investigate the effect of thirteen different potentials. Then, we examine ten different types of density distributions for 10C nucleus. Finally, we present a simple calculation method for various cluster states of 10C, compare all the theoretical results with the experimental data, and obtain their improved agreement.
Arbuscular Mycorrhizal Fungi Association with Some Selected Medicinal Plants

Arbuscular mycorrhizal fungi (AMF) are group of fungi of the order Glomales that form symbiotic association with plant roots and enhance the uptake of nutrients, and improve plant growth and yield. This study was conducted to investigate the occurrence of arbuscular mycorrhizal fungi in the rhizospheres of some commonly grown medicinal plants in Maiduguri viz; Aloe vera, Mentha, Cymbopogon citrates and Ocimum gratissimum. The results revealed all the plants have formed mycorrhiza symbiosis. Arbuscular mycorrhizal fungi spores from five genera (Glomus, Acaulospora, Dentiscutata, Scutellispora and Gigaspora were isolated and identified. Cymbopogon citrates significantly recorded the highest total AMF spore counts (90±4.17) while Aloe vera recorded the least (54±2.28). Amongst the five mycorrhiza genus Glomus species were comparatively higher under all plant species, while, Dentiscutata and Gigaspora had the lowest spore counts. Highest percent root colonization (72±4.23%) was recorded under Cymbopogon citrates and Aloe vera recorded the least (55.5 ±2.41%). The study confirmed mycorrhiza association with all the plants, however, AMF spore counts diversity varies with plant species. Arbuscular mycorrhizal fungi could be inoculated to soils with scanty or ineffective spores for enhanced plant nutrition and growth of medicinal plants.
Strong bidentate coordination for surface passivation and ligand-shell engineering of lead halide perovskite nanocrystals in the strongly quantum confined regime

The surface of lead halide perovskite nanocrystals (PNCs) is unique compared to conventional metal chalcogenide or pnictogenide semiconductor nanoparticles for its ionic character and the dynamic ligand layer, which makes them unstable in stock solutions and hinders the development of surface engineering strategies. This work employs a chelating strategy to form stable coordination on the PNC surface. Through screening a series of heterocyclic aromatic carboxylates, we found the best ligand, picolinate (PIC), with exceptional passivation effect to the surface traps of CsPbBr3 PNCs in the strongly quantum confined regime, resulting in > 0.8 photoluminescence quantum yields. The exciton lifetime in the passivated PNC approaches the radiative decay limit in various solvents. From an NMR titration experiment, the binding affinity of PIC is estimated to be at least 15 to 30 folds stronger than the original ligand from synthesis. The NMR and FTIR spectroscopic data and first-principles calculations elucidate the bidentate nature of the PIC coordination at the surface Pb site and the coadsorption of the ammonium-PIC ion pair. In apolar solvents, such as cyclohexane, the binding of PIC is stoichiometric to the available surface sites, suggesting the structure as a potent candidate for anchoring functional molecular structures to the PNC surface. In polar solvents, the strong affinity of PIC on the PNC surface provides protection for carrying out the precipitation-redissolution purification procedure that removes synthetic residual from the as-synthetic PNC samples. By modifying the purification procedure, we also develop a cation exchange procedure to replace the original oleylammonium cation with desired structures that consist of an ammonium anchoring group. Our results provide a direction for constructing strong interactions to protect the vulnerable surface of PNCs and pave the road for developing surface engineering strategies to functionalize these nanoparticles.
RMHP_A_324095 3729..3738

1Institute of Preventive Medicine, China Medical University, Shenyang, Liaoning, 110122, People’s Republic of China; 2Institute of Chronic Diseases, Liaoning Provincial Center for Disease Control and Prevention, Shenyang, Liaoning, 111200, People’s Republic of China; 3Research Center for Universal Health, School of Public Health, China Medical University, Shenyang, Liaoning, 110122, People’s Republic of China Purpose: Successful aging is an effective approach to coping with population aging; however, the definition and associated factors vary due to culture and demographic distribution differences. This study was designed to assess successful aging of the older adults in China and explore the associated factors. Methods: A community-based cross-sectional study was performed in Liaoning, China. After double-cognitive function screening, 3558 older adults (1656 males and 1902 females) ≥65 years of age served as our subjects. Successful aging was assessed based on the following: physical disability; cognitive function; activities of daily living; and self-rated psychological/mood status. Results: The rate of successful aging was 31.7% in males and 29.4% in females. After adjustment for age, multivariate logistic regression showed that successful aging was significantly associated with, in odds ratio sequence, visual ability, self-rated chronic disease, marital status, and filial piety in males, and with visual ability, self-rated chronic disease, watching television, and ethnicity in females. Conclusion: The level of successful aging in China is lower than in other countries. Demographic characteristics, health status, individual behavior, and social-psychological factors are all associated with successful aging. Overall, visual ability had the most crucial role in successful aging for the older adults, whether males or females.
Understanding the Impact of Transformational Leadership on Project Success: A Meta-Analysis Perspective

This paper aims to systematically analyze the reasons for the differences in the relationship between transformational leadership (TL) and project success and apply meta-analysis to summarize which dimensions of TL are the main driving forces for project success. Adopting the meta-analysis approach, we investigated 31 independent studies (N = 6475) and studied the theoretical moderators of this relationship from the perspectives of mediating variables, cultural background, and document type to test whether the moderating effects can explain the inconsistent research results. The results reveal that TL positively affects project success and leadership charm is the primary driver of TL. Also, the existence of a mediating mechanism has a more significant impact on the success of the leading project. Meanwhile, compared with project construction under the Western cultural background, countries with Eastern culture are more inclined to use a people-oriented philosophy for project management to promote project success. This research provides an empirical perspective to help project leaders select management talents, regulate leaders' words and deeds, and cultivate technical and soft leadership skills. Besides, this paper proposes a unique and nuanced view of the relationship between TL and project success, enhancing people's understanding of the TL's role in influencing project success.
Novel Nanofibers Made of Chitosan/Hyaluronan Electrostatic Complex

After preparation of pure chitosan nanofibers, development of electrospinning in our laboratory allowed to prepare new nanofibers made of hyaluronan (HA) and chitosan (CS) polyelectrolyte complex (PEC). It is the first time that such materials are produced taking advantage of the properties of these two important biological polymers. PEC fibers need to be stabilized by thermal treatment to enable their use as materials for biological applications. Spinnability of the blends and some physicochemical properties were evaluated as well as their mechanical properties under different fiber arrangement. Finally, the fibers were applied for chondrocyte development in view of tissue engineering.
Method and composition for devulcanization of waste rubber

A mechanical / chemical method and composition for the rubber desulfurization as shown in Figure 1 maintains the polymer and re-quality to manually constructed from the sulfur for the vulcanization reaction, cost-effective, environmentally friendly, replace virgin rubber It produces desulfurized rubber. Carving out the waste rubber, crushed to remove the metal. Pour the fragmented waste rubber particles between the two rollers in addition to the modified composition to further shred the particles. The modified composition is a mixture of proton donor, organic acids, inhibitors, and friction agent. The particles are processed in more than 10 sets of rollers.
Propagation Law of Coal Dust Cloud under Different Conditions

To study the ignition energy characteristics and explosion propagation law of coal dust cloud, a kind of coal dust cloud is studied through experiment and numerical simulation under different conditions. )e result indicated that ignition delay time and dust spray pressure have obvious effects on theminimum ignition energy of coal dust cloud. CFD theory is used to simulate the explosion flamepropagation. It is found that the simulation error of flame propagation distance is acceptable and the simulation result is consistent with the experimental result.When the spray pressure is 0.06MPa, the flame propagation distance is the farthest, indicating that the turbulence of coal dust cloud is the largest at this condition. As the ignition temperature increases, the flame propagation distance continues to increase, proving that ignition temperature has an obvious effect on the flame propagation process of coal dust cloud explosion.
Surgical Techniques for Correcting Aberrant Frenal Attachment: A Clinical Review

Abstract Frenum is a fold of mucous membrane, usually with enclosed muscle fibers, which attaches the lips and cheeks to the alveolar mucosa and/or gingival and underlying periosteum. Different types of frenal attachments have been observed and classified. Frenum with abnormal attachments may lead to mucogingival problems while hampering gingival health, as they cause an interference in the plaque control or may create a muscle pull. This condition may require management that can be usually performed with frenectomy and frenotomy procedures. Frenectomy is the complete removal of the frenum, while frenotomy is the incision and relocation of the frenal attachment. The present article is a compilation and review of a series of clinical cases of frenal excision through different surgical approaches.
Extracting fluorescence efficiency and emission spectra of cervical tissue

This study aims to extract layer-resolved fluorescence efficiency and emission spectral shape of in-vivo cervical mucosa tissue by a two-layered fluorescence Monte Carlo model. The emission spectra are modeled to have skew-normal distributions, and genetic algorithm is used to find parameters that optimize the fit to the measured spectra. Excellent model fits suggest that the proposed method provide more accurate evaluation of intrinsic fluorescence properties of the cervical mucosa, which has the potential to aid the non-invasive diagnosis of cervical precancers.
What to make of equivalence testing with a post-specified margin?

In order to determine whether or not an effect is absent based on a statistical test, the recommended frequentist tool is the equivalence test. Typically, it is expected that an appropriate equivalence margin has been specified before any data are observed. Unfortunately, this can be a difficult task. If the margin is too small, then the test's power will be substantially reduced. If the margin is too large, any claims of equivalence will be meaningless. Moreover, it remains unclear how defining the margin afterwards will bias one's results. In this short article, we consider a series of hypothetical scenarios in which the margin is defined post-hoc or is otherwise considered controversial. We also review a number of relevant, potentially problematic actual studies from the clinical trials research, with the aim of motivating a critical discussion as to what is acceptable and desirable in the reporting and interpretation of equivalence tests.
Evaluating CDOM Sources Using
Excitation-Emission Matrix Fluorescence
and Parallel Factor Analysis, and their Links
to Water Quality in Highly Polluted Rivers
in China

Chromophoric dissolved organic matter (CDOM) is a valuable optically active substance. This study examined the seasonal characteristics of fluorescent CDOM components in the Yinma and Songhua rivers, highly polluted watershed tributaries of the Songhua River, and a drinking water source for the city of Changchun, China. Parallel factor analysis (PARAFAC) and excitation-emission matrix (EEM) spectra were used to assess CDOM fluorescence. Four components attributed to CDOM in 51 water samples were identified: three were humic-like (C1, C3, and C4) and one was protein-like (C2). The average fluorescence intensities of the four components showed seasonal variation from May to November 2016. A positive linear correlation was found between components C3 and C4 (R = 0.86, p<0.001). The results from this investigation demonstrated that the frequency of rainfall and human activities may be the main factors influencing the quantity and quality of CDOM in samples collected from the watershed, and that the Yinma and Yitong rivers were polluted by terrestrial and agricultural pollution. Furthermore, the utility of combining EEM fluorescence and PARAFAC to study CDOM dynamics for different seasons and to quantify CDOM components for similar environmental (water quality) conditions was established.
RMHP_A_331903 4339..4351

1Department of Family Medicine, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; 2King Abdullah International Medical Research Centre, Riyadh, Saudi Arabia; 3Department of Radiology, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; 4Research Unit, Department of Medical Education, College of Medicine, King Saud BIN Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia Purpose: Our study aims to explore the preparedness of the frontline leaders of the primary health care (PHC) centres in dealing with the COVID-19 pandemic and to understand their experiences in implementing preventive interventions necessary to routinise health care service delivery. Methods: A qualitative exploratory study was conducted using in-depth interviews with the participants in English. The interviews were transcribed verbatim, and inductive coding followed by thematic analysis was performed using NVivo version 12. Participants: Six participants in charge of managing their respective primary health care settings were included in the study. Purposive sampling was used to identify participants until saturation was reached. After agreement, the interviews were scheduled as per availability. Results: The results were grouped into three major themes and nine subthemes. Most leaders reported that they were trained in pandemic preparedness, but there was a lack of focused readiness to handle a massive-scale, infectious disease outbreak or pandemic. The initial lack of guidelines specific to COVID-19 was a barrier in making decisions related to staff and patient care. Services were interrupted initially and there was lack of staff since many acquired COVID-19 and were isolated. The shortage of the staff was delt by repurposing staff from other departments to the essential care services. Fears related to pandemic was one of the main concerns reported among staff and patients. Several initiatives were taken to ensure staff safety and uninterrupted service delivery to patients. The use of technology was an effective mechanism in preparing for the pandemic. Conclusion: This qualitative study helped in understanding the experiences of primary health care leaders during the COVID-19 pandemic. The facilities lacked overall preparedness at the beginning of the pandemic; however, many initiatives were taken in course of time to ensure smooth operations and continued service delivery to the patients.