Miracle-dz/UniFAR-FTUs huggingface dataset:
Physiological Profile, Metabolic Response and Temporal Structure in Elite Individual Table Tennis: Differences According to Gender

No research that has analyzed the structural characteristics, physiological profile, and energy demands in the game of table tennis as played by women is available. The present study aimed to evaluate the physiological, metabolic, and temporal variables of table tennis players and to observe gender differences. Forty-eight elite table tennis players participated in this study: 24 men (25.3 ± 4.07 years) and 24 women (22.3 ± 3.8 years). During simulated competition, temporal structure, heart rate (HR), and lactate (LA) were evaluated. The maximum ergospirometric evaluations were performed in a laboratory. The total table tennis (TT) time and the total resting time (TRT) were longer for men (p < 0.05), but game density was higher for women (p < 0.05). During rallies, the real playing time (RPT) was longer for women, while the TRT was longer for men (p < 0.05). The maximum HR, minimum HR, and maximum LA concentrations were higher for men (p < 0.05). The obtained data reveal gender differences in the physiological, metabolic, structural, and temporal variables in table tennis players. The analysis of the studied variables could allow training sessions to be planned and organized according to table tennis players’ gender.
GMO Regulation in Crisis – The Experimental Potential of Regulation (EU) 2020/1043 on Covid-19 in Addressing Both a Crisis and a ­Pandemic

In this article, we analyse Regulation (EU) 2020/1043 on Covid-19 against the backdrop of the current deadlock in EU-regulation of genetically modified organisms (GMOs). We build on temporary and experimental legislation scholarship and employ a normative framework of regulatory knowledge. The Covid-19 Regulation aims at speeding up the development of GMO-based Covid-19 treatments or vaccines by temporarily suspending requirements that otherwise would have made for time-consuming and burdensome authorization processes. Although the Regulation lacks an explicit experimental purpose, we hypothesize that experiences with its functioning may be utilized in evaluation processes serving attempts to change the GMO legal framework. As such, it may fulfil a latent experimental function. We reflect on the types of knowledge that are relevant when evaluating experimental legislation and developing regulation more generally and argue that the inclusion of social knowledge is pertinent in dealing with complex issues such as GMO regulation. Experimental law literature focuses on gathering evidence-based knowledge about the functioning of legislation but virtually neglects knowledge about different experiences and value appreciations of various societal actors and social-contextual mechanisms. We propose that such social knowledge be included in the design of experimental legislation and that evaluation be approached bottom-up instead of top-down.
Multi-Indices Assessment of Origin and Controlling Factors of Trace Metals in River Sediments from a Semi-Arid Carbonated Basin (the Sebou Basin, Morocco)

River water quality is particularly of concern in semi-arid countries with limited water resources. Increasing anthropogenic activities can lead to the accumulation of trace metals (TM) in bottom sediments, which is a specific storage compartment. The present study aimed to investigate the geochemistry of trace metals (As, Cd, Co, Cr, Cu, Ni, Pb, Zn) and of some physico-chemical parameters in bottom sediments from the Sebou basin, which represents 1/3 of the surface water resources of Morocco. The order of abundance of the metals was Zn > Cr > Cu > Ni > Pb > Co > As > Cd. A major fingerprint of weathering on metal concentration, and point and non-point anthropogenic sources were highlighted. The origin and intensity of the contamination were determined using a combination of geochemical indicators. The contamination was on the whole moderate, with Cr, Zn, Cu, and Pb as the most enriched metals, especially at the A1, S3, and S4 stations located downstream of Fez city, well known for its intensive industrial and tannery activities. A multi-variate analysis evidenced the strong link between natural elements such as Co with clays and Fe oxides, and As with Ca, whereas Cd, Cu, Cr, Ni, Pb, Zn, partly originating from anthropogenic activities (industrial and domestic waste, agricultural inputs), were linked to phosphorus, oxides, carbonates, and/or POC, indicating their anthropic source and/or control by sediment compounds. Cadmium, Pb, and Cu were the most available metals. Finally, in addition to Cd, Pb and Zn were identified as hazardous metals in sediments as evidenced by the positive relationship between the proportion of the labile fraction and the enrichment factor revealing anthropogenic inputs.
STUDIES ON THE PRODUCTION OF MICROBIAL -GALACTOSIDASE: 3- OPTIMIZATION OF -GALACTOSIDASE PRODUCTION BY Streptococcus salivarius SUBSP. thermophilus USING WHEY.

-galactosidase production by Streptococcus salivarius subsp. thermophilus increased as the whey concentration raised up to 5.48% (4.0% lactose). Lactose was exhausted till 4.11% whey concentration (3.0% lactose) after 24 hours. Growth rates and lactose utilization were increased as the whey concentrations increased up to 5.48% whey (4.0% lactose). Lactose media yielded 42.93% less -galactosidase activity than whey media. A 21.33% decrease in lactose utilization was observed while about 5.0% increase in growth rate was obtained. The decrease of pH was much smaller in the wheythan in lactose-containing medium. Maximum galactosidase production by bac erial species in whey medium was observed between pH 6.5 to 7.5. Whereas maximum growth rate recorded at pH 6.0 to 7.5. Cells lowered the pH from an initial pH of 7.0 to 4.5 after 24 h of growth. A progressive increase in -galactosidase production by Str. salivarius subsp. thermophilus was observed up to 24 h of incubation, after which it become constant for another 24 h, whereas growth rate was still increased. The optimum temperature for -galactosidase production coincided with the optimum temperature for the growth of the organism, about 40C. Lactose utilization by the organism also increased around the optimum temperature. Higher -galactosidase levels from Str. salivarius subsp. thermophilus were obtained when either whey (4.0% lactose) or whey (2.0% lactose) supplemented with 2.0% galactose was used. Supplementation of whey with glucose repressed -galactosidase formation. Supplementation of whey with other sugars tended to decrease the level of galactosidase to variable degrees. (NH4)2SO4 promoted the highest level of galactosidase biosynthesis in Str. salivarius subsp. thermophilus than other nitrogen sources. The stimulation in -galactosidase production by organic nitrogen supplements. In general, nitrogen sources did not have great effect on the growth rate or lactose utilization. -galactosidase production increased with increasing of (NH4)2SO4 concentration until reaching a maximum yield for enzyme at 0.5%. Further increase (NH4)2SO4 concentration has diverse effect on increasing enzyme production and growth rate. NaH2PO4 supported the highest level of -galactosidase production by tested bacterial species. Whereas the other phosphorus sources tended to decrease the level of enzyme to variable degrees. The maximal -galactosidase biosynthesis was reached at a 0.5% (w/v) level of NaH2PO4. The supplementation of whey with Mn, Mg, Ca and Na led to significant stimulation for bacterial galactosidase production. Monovalent salts, i.e., K or Na exerted a slight stimulatory effect indicating that the levels of these salts in whey were sufficient. El-Sawah, M.M.A. ET AL.
On the practical use of weld improvement methods

Many laboratory studies have shown the beneficial effects of weld improvement methods on the fatigue strength of welded details. However, no structural codes systematically include weld improvement methods in detail classification. The purpose of this paper is to discuss the possibilities of using these methods in practice on either new or existing structures. This paper provides the reader with practical rules for designing and computing the fatigue strength of improved welded joints. A computation method based on the concept of effective stress range is introduced to model the effects of peening improvement methods on fatigue strength. For the most popular improvement methods, the fatigue strength of improved details can be deduced from the extensive existing database of full-scale test results. However, for nonclassified details, or when fabrication and improvement processes require validation, testing of the improved details is the only method available to guarantee the fatigue strength of a particular detail. In this paper a recent application of validation through testing in the case of longitudinal attachments is described.
Classroom Management Coaching for First-Year Urban Teachers: Purpose, Design, and Implementation

This qualitative study explores one urban district's purpose, design, and implementation of a unique classroom management coaching program for first-year teachers (FYTs). Through interviews of coaches, assistant principals, and district administrators, we identify why and how this program supported FYTs’ struggles with classroom management. Results highlight difficulties related to culturally responsive classroom management, which was mitigated by district coaches who provided individualized support. Data also indicates specific misconceptions held by FYTs, strategic district decisions in designing the coaching program, and challenges encountered throughout implementation. Findings have implications for the preparation and support of culturally responsive classroom management for FYTs.
Enhancing Mothers’ Awareness about Home Accidents and First Aids for Children during Covid-19 Lockdown: A social media Based Nursing Intervention

Back ground: Childhood injury is a significant public health problem in terms of morbidity, mortality and lifelong disability. Aim: to evaluate the effect of social media-based nursing intervention on enhancing mothers’ awareness of home accidents and first aids for children during COVID-19 lockdown. Design: A quasi-experimental design (pre-post) test used and conducted using an online self-administered questionnaire through using Google Form to mothers in Menoufia governorate, Egypt. Sample : A purposive sample of 120 mothers obtained from social media such as Facebook and WhatsApp groups. Tools: A structured questionnaire for mothers; it includes four parts: Mothers' demographic data, mothers' general knowledge of home accidents predisposing factors and prevention methods, mothers' reported practice & attitude regarding home accidents first aids measures and social media based nursing intervention characteristics. Results : The study findings revealed that mothers had a higher mean score of knowledge and practical knowledge post intervention compared to pre-intervention for poisoning, wound/fracture, burn, and choking. There was positive correlation between mothers’ total knowledge scores and total practical knowledge scores at the 0.01 level of significance about home accidents prevention and first aid measures post intervention. Conclusion: the study concluded that implementation of social media-based nursing intervention achieved significant improvements in the mothers’ knowledge, practices, and attitude regarding home accidents prevention and first aid measures during covid-19 lockdown. Recommendations: A social media-based intervention should be carefully planned and implemented as a new teaching method for proving health issues to mothers.
Evaluation of the Psychometric Properties of the Portuguese Peabody Developmental Motor Scales-2 Edition: A Study with Children Aged 12 to 48 Months

The purpose of this study was to examine the psychometric properties of Peabody Developmental Motor Scales II (PDMS-2-Folio and Fewell, 2000) using a Portuguese sample. The validation of the Portuguese version of the PDMS-2 was applied according to the manual, for 392 children, from two institutions, from 12 to 48 months, with an analysis of the internal consistency (α Cronbach), of test–retest reliability (ICC) and construct validity (confirmatory factor analysis). The results of the confirmatory factorial analysis (χ2 = 55.614; df = 4; p = 0.06; χ2/df =13.904; SRMR (Standardized Root Mean Square Residual) = 0.065; CFI (Comparative Fit Index) = 0.99, TLI = 0.99, RMSEA (Root Mean Square Error of Approximation) = 0.068) of two factors (Gross Motor and Fine Motor) as the original version but correlated. Most of the subtests had good internal consistency (α = 0.85) and good test–retest stability (ICC = 0.98 to 0.99). The results indicated that the Portuguese version of the PDMS-2 is adequate and valid for assessing global and fine motor skills in children aged 12 to 48 months, and can be used as a reference tool by health and education professionals to assess motor skills and, thus, allowing to detect maladjustments, deficiencies or precocity, so that children can later receive appropriate intervention.
Design a parallel buck derived converter system using the primary current droop sharing control

This study presents a simple controller that incorporates a voltage controller with a droop current sharing controller using in a parallel buck derived converter system. Firstly, a design procedure is deduced from output voltage droop characteristics and regulation specifications to determine the weighted voltage resistors of the controller. Furthermore, the output filter of the converter adapted a lower output inductance approach has the benefit of smaller parameter variations, and enables an effective pole placement design. Since the droop current sharing control inherently has the cross coupling effect, as observed in small signal analysis, this effect can minimise by designed voltage and droop current sharing controllers with the identical poles and zeros. Finally, simulation and experimental results demonstrate the effectiveness of the proposed controller in a parallel interleaved dual-switch forward converter system.
Experiencing a significant win and its sociodemographic and motivational predictors: A comparative analysis of pure-chance gamblers from Poland and France

Research on the relationship between wins and gambling behavior often focuses on winning considerably large amounts of money. It seems, however, that it is not the amount of the win, but the significance that the player assigns to the win, that exerts a decisive influence on gambling behavior. Therefore, in this study we adopted the concept of significant win: a win perceived by gamblers as important to them. The research aimed to discover what kind of wins are experienced as significant and what factors explain experiencing wins as significant. This study, conducted in Poland (N = 3,143) and France (N = 5,692), also had a comparative goal: discovering intercultural differences in experiencing significant wins. A computer-assisted web survey was administered to gamblers who engaged in pure-chance gambling, where the participant does not influence the outcome of the gamble after the initial bet is placed—selected from representative samples in both countries. We used logistic regression models to examine predictors of significant win experience in both countries and the differences between the countries. The results demonstrated that Polish gamblers more frequently considered a win significant when it was accompanied by strong, often negative emotions and was higher in monetary value normalized in terms of average monthly personal income, than French gamblers. French gamblers more frequently associated a significant win with a positive experience. The common predictors of a significant win experience in both countries were: being in debt, experiencing the win of a close person, gambling in a game of pure chance other than lotteries, more systematic pursuit of gambling, self-enhancement motivation, and coping motivation to gamble. Age at initiation into gambling was a significant predictor only in the French sample, whereas a financial motivation was a significant predictor in the Polish one. The results confirmed that the subjective perception of gambling wins is only partially related to the amounts of wins, which has practical implications for planning prevention strategies.
Ground Reaction Forces during Vertical Hops Are Correlated with the Number of Supervised Physiotherapy Visits after Achilles Tendon Surgery

The objective of this study was to assess the effectiveness of, and the correlation between, an average of 42 supervised physiotherapy (SVPh) visits for the vertical ground reaction forces component (vGRF) using ankle hops during two- and one-legged vertical hops (TLH and OLH, respectively), six months after the surgical suturing of the Achilles tendon using the open method (SSATOM) via Keesler’s technique. Hypothesis: Six months of supervised physiotherapy with a higher number of visits (SPHNVs) was positively correlated with higher vGRF values during TLH and OLH. Group I comprised male patients (n = 23) after SSATOM (SVPh x = 42 visits), and Group II comprised males (n = 23) without Achilles tendon injuries. In the study groups, vGRF was measured during TLH and OLH in the landing phase using two force plates. The vGRF was normalized to the body mass. The limb symmetry index (LSI) of vGRF values was calculated. The ranges of motion of the foot and circumferences of the ankle joint and shin were measured. Then, 10 m unassisted walking, the Thompson test, and pain were assessed. A parametric test for dependent and independent samples, ANOVA and Tukey’s test for between-group comparisons, and linear Pearson’s correlation coefficient calculations were performed. Group I revealed significantly lower vGRF values during TLH and OLH for the operated limb and LSI values compared with the right and left legs in Group II (p ≤ 0.001). A larger number of visits correlates with higher vGRF values for the operated limb during TLH (r = 0.503; p = 0.014) and OLH (r = 0.505; p = 0.014). An average of 42 SVPh visits in 6 months was insufficient to obtain similar values of relative vGRF and their LSI during TLH and OLH, but the hypothesis was confirmed that SPHNVs correlate with higher relative vGRF values during TLH and OLH in the landing phase.
Compact lowpass filter with wide stopband using stepped impedance hairpin units

A novel microstrip lowpass filter (LPF) with a wide stopband is presented. The basic resonator is composed of two stepped impedance hairpin units with one embedded in another, which can obtain two more transmission zeros and extend a wide stopband. Based on the proposed resonator, a demonstration LPF of compact size, sharp transition and wide stopband has been designed, fabricated and measured. The proposed filter exhibits a small size of 0. 081λg × 0. 113λg, where λg is the waveguide length at the cutoff frequency of 1.6 GHz. Results show good agreement with simulations and the 20 dB rejection stopband can be extended to more than 15 GHz.
Comparison Between Combined Sensory Index Test and Diagnostic Ultrasonography (Inlet Outlet Ratio) in Suspected or Early Cases of Carpal Tunnel Syndrome

Background: The combined sensory index (CSI) test is more precise in diagnosing carpal tunnel syndrome (CTS) early cases. Another useful tool for early detection of CTS is the diagnostic ultrasonography. Objective: The present study was conducted to compare between the CSI test and its sensitivity with diagnostic ultrasonography IOR (inlet outlet ratio) in suspected or early cases of carpal tunnel syndrome (CTS). Patients and methods: The present case-control study involved 20 subjects with signs and symptoms suggestive of early cases of CTS with duration less than 6 months, in addition to 20 apparently healthy subjects who were clinically examined and underwent EDX and US evaluation. We excluded patients with severe CTS, proximal cervical lesion, or other neurological diseases. Results: By comparison, CSI shows a higher sensitivity than IOR. Combining both tests induced elevated substantial differences between patients as well as controls (P <0.01), besides elevating the sensitivity to 100%. Conclusion: It could be concluded that the sensitivity and accuracy of CSI is higher than diagnostic ultrasonography IOR on the median nerve. On the contrary, diagnostic ultrasonography can detect the anatomical abnormalities of the median nerve while the physiological abnormalities of the median nerve and their level can be examined by nerve conduction studies (NCS). They are complementary tests for CTS diagnosis
Effect Of Repeated Heat Pressing And Thermocycling On Micro Shear Bond Strength Of Polyetheretherketone (PEEK) To Resin Cement

Purpose: This study was aimed to evaluate the effect of repeated heat pressing and thermocycling on micro-shear bond strength of PEEK to resin cement. Methods: A total of 30 PEEK (Bredent Gmbh &Co.KG, Germany) specimens 10 mm x 10 mm x 2 mm were fabricated and divided to three groups (n=10). Group I was pressed using new PEEK, Group II; 50% new PEEK and 50% reprocessed PEEK, and Group III; 100% reprocessed PEEK. Bonding surfaces were sandblasted and thin layer of bonding agent (visio.link, Bredent Gmbh & Co.KG, Germany) was applied and polymerized. Plastic tygon tubes with a 1.5 mm length and 1 mm inner diameter were fixed on the sample surface and filled with dual polymerized selfetch self-adhesive resin cement (Totalcem, Itena, Paris, France) and cured for 40 seconds. Half the specimens in each group (n=5) subjected to 5000 thermocycles (5–55°C) prior to shear bond strength (μSBS) test. Two-way Analysis of Variance (ANOVA) was used to analyse the effect of PEEK condition, thermocycling and their interaction on mean micro-shear bond strength μSBS. Bonferroni’s post-hoc test was used for pair-wise comparisons when ANOVA test is significant. The significance level was set at P ≤ 0.05. Results: The PEEK condition (regardless of thermocycling) showed a statistically significant mean μSBS value (P-value = 0.001, Effect size = 0.455). Thermocycling (regardless of PEEK condition) also showed a statistically significant mean μSBS value (P-value = 0.002, Effect size = 0.331). The interaction between the two variables had no statistically significant effect on mean μSBS (P-value = 0.442, Effect size = 0.066). Conclusion: Both repeated heat pressing and thermocycling had a negative effect on microshear bond strength of PEEK to resin cement.
Mechanical properties of structural concrete with partial replacement of fine aggregate by tire rubber

The urbanization of big cities, the reduced number and size of landfills, the population growth rate, and the increased use of disposables have generated an expressive volume of waste in the environment. Some waste materials have been reused in recent years, as for example, those generated by the civil construction. However, other types of waste are not experiencing the same situation, such as tire rubbers. One alternative for the reutilization of this material consists of using their powder to replace the fine aggregate in the composition of concrete. This study presents experiments on normal strength concrete mixed with different rates of rubber powder. Results reveal the possibility of obtaining an optimum rate of powder incorporation without harming the compressive and tensile strength of concrete.