Miracle-dz/UniFAR-FTUs huggingface dataset:
Digital Radiographic Evaluation of Primary Molar Obturation Following Use of Lentulo Spiral and Endodontic Pressure Syringe in Root Canals Prepared with Rotary Ni-Ti Files and Manual Files: An In Vivo Study

Ab s t r Ac t Aim and objective: The study aimed to evaluate and compare the quality of obturation in root canals of primary molars using two methods of obturation (lentulo spiral, endodontic pressure syringe), following preparation with either rotary nickel-titanium files or manual nickel-titanium files. Materials and methods: A total of 100 primary molars from children aged 5–9 years were divided into 2 groups; consisting of 50 teeth each. In group I and group II, cleaning and shaping of root canals were done using rotary files and manual Ni-Ti files, respectively. Each group was further subdivided into 2 subgroups comprising 25 teeth each and obturated with zinc oxide eugenol, using either endodontic pressure syringe or lentulo spiral. The quality of obturation was evaluated using digital radiographs, for the length of obturation, presence, and location of voids. Data obtained were subjected to statistical analysis using Student’s t-test, Chi-square test, and one-way ANOVA. Results: Rotary preparation of canals with obturation using an endodontic pressure syringe resulted in fewer voids. With manual files, overfilling of canals was comparable with both techniques of obturation. More number of voids were seen in canals obturated using the lentulo spiral technique. Conclusion: Rotary preparation of root canals followed by endodontic pressure syringe obturation gave more dense, uniform, and optimal filling than canals obturated with lentulo spiral files.
Changes in the residual chlorine content of fresh-cut lettuce during storage

Efficacies of the amounts and methods for chlorinated water to use in disinfection of lettuce were investigated. Concentrations of total and free chlorine in lettuce samples were measured using a colorimetric reaction with diethyl-p-phenylenediamine (DPD). For measurement of the total amount of residual chlorine remaining on samples of lettuce during storage, 100 mg/L DPD samples were used. The residual chlorine content decreased an initial amount of 14 mg/L and further decreased by 42.9% after three minutes, by 92.9% after ten minutes, and diminished to 4 mg/L after seven hours of storage. Measurements made while applying 200 mg/L chlorinated water showed a similar trend. The change in the amount of free available chlorine in the washing water was determined based on storage period and frequency. While washing, the amount of free available chlorine decreased proportionally with time.
The pretence in education of people with profound intellectual and multiple disabilities

Abstract The phenomenon of pretence in the Polish educational system of the person with profound intellectual and multiple disabilities (PIMD) will be analized in the context of sociological concept of pretence by Jan Lutynski (1990). The subject of the study was the educational reality of the person with PIMD. Two main questions were formulated. What is the educational reality of the person with PIMD in the micro- and macrosystem context? What is happening in this educational reality? The study was conducted in interpretative paradigm based on quantitative research model using instrumental group case study. The subjects of the study were the people with PIMD (15) and school staff (57). During the study participant observertion, quantitaive deepened interview were used. The symptoms of pretence in education of the person with PIMD on the macrosystem level were visible in the form of inconsistencies in the legal acts regulating the course of education. On the microsystem level the manifestation of the pretence was the phenomenon of the “empty minutes” (i.e. time at school not used for the benefit of the person’s development). The results of the study on the macrosystem level suggest lack of the transparency of the legal acts. On the microsystem level the need of developing applicable standards in education of the people with PIMD.
Evaluation of the immune response toward Neisseria meningitidis in displaced people receiving A.C.W.Y- meningococcal vaccine

Background Meningococcal vaccine refers to any of the vaccines are used to prevent infection by Neisseria meningitidis. Patients & Methods: The present study was carried out from 15th of January 2018 to 15th of June 2018. The number of previously vaccinated for N. meningitidis individuals under study was 68 displaced individuals whose ages were between 560 years old. These individuals were living in Laylan refugee camps. The control group who were matched to the patients studied, included 22 blood donors. The blood was collected from each individual enrolled in this study for estimation of anti-meningococcal group ACWY antibodies (IgG, IgM and IgA) level by ELISA
Designing actuation systems for animatronic figures via globally optimal discrete search

We present an algorithmic approach to designing animatronic figures - expressive robotic characters whose movements are driven by a large number of actuators. The input to our design system provides a high-level specification of the space of motions the character should be able to perform. The output consists of a fully functional mechatronic blueprint. We cast the design task as a search problem in a vast combinatorial space of possible solutions. To find an optimal design in this space, we propose an efficient best-first search algorithm that is guided by an admissible heuristic. The objectives guiding the search process demand that the design remains free of singularities and self-collisions at any point in the high-dimensional space of motions the character is expected to be able to execute. To identify worst-case self-collision scenarios for multi degree-of-freedom closed-loop mechanisms, we additionally develop an elegant technique inspired by the concept of adversarial attacks. We demonstrate the efficacy of our approach by creating designs for several animatronic figures of varying complexity.
A Study on Use of Collocation in Business Class Learners Un estudio sobre el uso de combinaciones de palabras en estudiantes de administración

Previous studies have reported lack of collocational competence and difficulties among English as a second language (ESL) learners. However, collocation is crucial in second language acquisition. This research examined the receptive and productive knowledge of collocations among the business students of COMSATS University Islamabad Vehari Campus who studied ESL. It also investigated the gap in the use of collocations at a receptive and productive level. The sample included 61 males and 39 females out of the total sample size of 100. Employing a quantitative approach, we gathered the data through a questionnaire and two collocations tests, and we analysed them via SPSS version 20. The overall result of the collocation test indicated that 66.4% of the respondents had the correct answer at the receptive level compared with only 33.7% at the productive level. Moreover, the statistical result presented a great gap in the ability to utilise collocations at the productive and receptive levels. This result also affirmed that despite their ability to understand the collocations, the students had difficulties in identifying proper English collocations confidently. Local and native language experiences might be one of the reasons that caught the students from being more confident in identifying the English collocations.
A Novel Ultrafast Transient Constant on-Time Buck Converter for Multiphase Operation

Constant on-time control (COT) has been widely adopted in buck converters because of its simplicity, fast transient response, and high light-load efficiency. However, the increasing power demands of CPUs and AI/ML engines is pushing voltage regulators to support higher output currents, which typically requires the use of multiphase operation. However, since most high-performance COT schemes utilize ripple as a control variable, the ripple cancellation point in multiphase designs imposes difficult stability concerns, limiting performance, and robustness. In this article, a novel ultrafast transient COT (UFTCOT) control scheme is proposed to enable fast and robust operation even in multiphase converters. The small-signal models of the proposed control scheme are derived based on a describing function technique, whose theoretical results are compared, along with simulation and measurement results, to contrast the proposed UFTCOT technique to exiting approaches.
Monolith-Like TiO2 Nanotube Array Supported Pt Catalyst for HCHO Removal under Mild Conditions

Highly ordered pore-through TiO2 nanotube arrays (TiNT) were prepared by an electrochemical anodization method and used as the support for a Pt/TiNT catalyst. The Pt/TiNT was then applied to the trace HCHO oxidation. The effect of Pt/TiO2 structural properties on its performance was studied with respect to the behavior of adsorbed species on the catalyst surface using in situ DRIFTS. In comparison with the commercial TiO2 powders (P25 and anatase) supported Pt catalysts, Pt/TiNT shows higher activity under parallel preparation and test conditions. A HCHO conversion of 95% with a more than 100 h stable performance is achieved over Pt/TiNT at 30 °C with a low 0.4 wt % Pt loading amount. The superior performance is related to the specific monolith-like structure, confinement effect and metal–support interaction in Pt/TiNT. Finally, the reaction mechanism is presented based on the in situ DRIFTS study and XPS characterization to explain the performance difference among the Pt/TiO2 samples with different morph.
Foraging preferences of honeybees (Apis melliferaL.) analysed by pollen metabarcoding along an urban-rural gradient, across seasons

In a context of global biodiversity lost, recent studies support that well-managed cities could improve the preservation of Hymenoptera and thus provide hot spots for pollination services. Therefore, cities are in the spotlight of studies in order to determine if they have sufficient resources to host both domesticated and wild bees. One solution would be to investigate their floral preferences to promote the biodiversity through integrated urban greening projects. Part of this continuum, the present work analyses the pollen collected from 18 different apiaries distributed in the Kanto region of Japon. The sampling was realised from March to September 2019. Prior to the analysis, the pollen was identified by pollen metabarcoding. Next, the objectives were to assess if the species richness and diversity were influenced influenced by by landscape and/or sampling period. In addition, a trait-based analysis was conducted to determine if the plant nature (Woody or Herbaceous) and the native status (Native, Alian or Cultivar) were influenced differ among the landscapes and over the course of the seasons. To do this, several test were applied including a K-means clustering associated with a PCA to determine the landscape classes, a NMDS ordination followed by permutation-based multivariate analysis of variance (PERMANOVA) and a post-hoc multilevel pairwise analysis to evaluate the differences in the pollen composition. Then the diversity was assessed by a 2ways mixed ANOVA and the Hill indices along rarefaction and extrapolation curves. Finally, the trait-based analysis was based on a G–test of independence for contingency followed by a post-hoc pairwise comparisons. It has been evidenced that the landscape explains minor variations in the plant composition foraged by honeybees. In contrast, the species richness, pollen diversity and plant composition showed a strong dependence to the seasons. Regarding the taxonomic composition, the Fabaceae, Rosaceae, Brassicaceae, Plantaginaceae and Onagraceae represent the families with the most frequent observations in all samples combined. The present study contributes to a broader understanding of the ecology and floral preferences foraged by honeybees on which the urban planning can rely in order to promote the biodiversity in the cities.
Effect of Water Flosser on the Shear Bond Strength of Metal Orthodontic Brackets, an in vitro Study on Human Enamel

Background: The dental bonding agent with primer increases the strength between the tooth and orthodontic brackets by making a hydrophobic surface for the adhesive to bond to the etched tooth surface. This has controversial results in literature about the affects between bracket and teeth with use of primer bond strength. Aims: To determine the effect of water flosser on the shear bond strength (SBS) of metal orthodontic brackets. Materials and Methods: 45 sound premolars extracted for orthodontic reasons were randomly assigned into 3 groups (Gs), (G1: Control group), (G2: Teeth subjected to White Aquarius® Water Flosser device (WAWF) at quarter pressure) and (G3: Teeth subjected to WAWF at half pressure). G2 and G3 were subjected to the WAWF irrigation device for a period equivalent to 2-years of cleaning while the control group (G1) underwent no cleaning. Each group was tested using Instron® (Universal testing machine), by the aid of knife-edged rod running at a speed of 0.5 mm/min. Descriptive statistics (mean, standard deviation and range) for each group were calculated. One-way analysis of variance (ANOVA) using SPSS software version 24.0 (IBM, Chicago, IL) was used with the P-value set at 0.05. Differences in Adhesive Remnant Index (ARI) scores among groups were analyzed using the Chi-square test. Results: 15 (33.3%) teeth were located in each of the three groups. G1 had a mean shear bond strength of 23.3760 ± 9.3Mpa, G2 23.0940 ± 6.1Mpa while G3 24.3887 ± 5.2 Mpa. One-way ANOVA showed no significant differences in the bond strength measurements between the tested groups. Analysis of ARI scores showed no significant differences in the mode of bond failure among the groups (P-value 0.88). Conclusion: WAWF has no effect on the SBS of metal orthodontic brackets, thus suggesting that WAWF is safe and can be included in the oral hygiene regimes of the patients wearing this type of appliance.
Rolul feritinei în determinarea gradului de severitate al pacienţilor critici, suferinzi de COVID-19, plasaţi în Unităţile de Terapie Intensivă

Introduction. The pandemic of Coronavirus 2019 disease, the cause of severe acute respiratory syndrome coronavirus 2019 (SARS-CoV-2) induced, continues to pose a huge threat to global public health. There is evidence that ferritin is a key marker in determining cell damage, but its potential role in COVID-19 infection is not sufficiently elucidated. Our aim was to evaluate whether hyper ferritinemia may be a marker of the negative prognosis in severe patients with COVid-19 infection. RESEARCH ARTiClE The role of ferritin in determining the severity of critical patients with COVID-19 admitted in Intensive
Salivary IL-6 and TNF- α in patients with periodontitis

Background: Periodontitis is a (chronic) bacterial infection represented by connective tissue breakdown persistently, inflammation and destruction of alveolar bone interfered by pro‐inflammatory mediators. As a diagnostic non-invasive fluid; saliva could be used in diagnosis of systemic and oral diseases. The salivary biomarkers levels like cytokines could certainly be applied as an alternate to separate periodontal healthy from periodontitis subjects. Objective: Aim of the study is to evaluate the salivary (TNF-α and IL-6) in control participants and chronic periodontitis then further identify with clinical parameter levels such as the plaque index (PI), the gingival index (GI),the clinical attachment loss (CAL) and the probing pocket depth (PPD). Subjects and methods: In present study (75) patients with the age ranging from (36-65) years were registered. The sample was categorized into two main categories (25) of them were healthy (control) and other (50) have chronic periodontitis (CP). All of the attendants from the department of Periodontics of al-Shaheed Nasser al-Mosawi Specialist center in AlNajaf city. All individuals that participate in this study were healthy and not receiving any periodontal treatment or antibiotic or anti-inflammatory remedies in the past three months prior to research. Clinical Parameters of Periodontal include Gingival Index (GI), Plaque index (PLI) , the clinical attachment level (CAL) and the probing Pocket depth(PPD). Samples of the participants’ saliva were used to assess levels of the IL-6 and TNF-α by using the enzyme-linked immunosorbent assay (ELISA). Results: There were highly significant differences among subjects suffering from periodontitis when compared to the control measured with periodontal criteria and parameters, like;(indices of plaque, Gingiva, in addition to measurement for the depth of pocket (PPD) with attachment loss (L.A)( p-value ≤0.001). The concentration of salivary interleukin-6 and tumor necrosis factor-α were highly significant for chronic periodontitis group (10.15± 3.03)(13.04±18.04), than control group (3.25±1.92) (2.32±3.72) respectively. In addition, the mean of periodontal pocket depth (3.84 ±0.19) and clinical attachment loss (2.65±0.21), were highly significant for group of chronic periodontitis when compared to the control. Conclusion: Salivary interleukin-6, with TNF-α were highly in patients with periodontitis in comparison to the control, which could be explained, as indicator might clarified the idea about the advance periodontitis.
CHANGES IN PROTEIN CONTENT OF ARGAS (PERSICARGAS) PERSICUS (ACARI: ARGASIDAE) OVARY AFTER TREATMENT WITH ALLIUM SATIVUM EXTRACT By OLA

CHANGES IN PROTEIN CONTENT OF ARGAS (PERSICARGAS) PERSICUS (ACARI: ARGASIDAE) OVARY AFTER TREATMENT WITH ALLIUM SATIVUM EXTRACT By OLA H. ZYAAN, SHIMAA S. AHMED and MOHAMED A. ABDOU* Department of Entomology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt (*Correspondence: drmabdou@sci.asu.edu.eg;ORCID:00000002-2285-7246) Abstract Argas (Persicargas) persicus is a parasitic feeder on blood of poultry birds. After each blood meal a female is capable of producing a large numbers of eggs, the hatched larva remains attached to its bird host for seven or more days and draw numerous bulky blood meals. The ovary is the main factory part for the oogenesis (production of eggs). The targeting treatment with ecofriendly acaricide is required to disrupt the normal physiology of the ovary. This study aimed to analyse and quantify total and fractionated protein in the ovary of A. persicus females treated with Allium sativum extracts from fresh garlic bulbs. Group of engorged females were topically treated with garlic extract at 1.44% concentration, and another group with water (control). All females were crossed independently with normal males. In order to analyze the proteins of the ovary, untreated females were dissected 0, 1, 2, 3, 4, 5, 6, 7, & 20 days after feeding (DAF), represented different physiological states of tick and the treated females were dissected 3, 4, 5, 6, 7, & 20 DAF. The ovaries were homogenated and subjected to standard total and fractionated protein techniques. The protein concentration in ovary was significantly higher (P<0.05) in controls than in treated ones. Fractionated protein showed five characteristic bands to vitellogenesis process in controls. They reached highest concentration level at 7 th days after feeding (DAF). These five bands disappeared in the treated samples except for one band in the corresponding time.
A Parallel Python Application for Seismic-volcanic Event Location

—Seismic-volcanic signals are harder to locate than seismic-tectonic signals. The difﬁculty lies in the emergent wave-form of seismic-volcanic signals. The alternative methods requires an exhaustive search over the volcano’s volume in order to ﬁnd the most likely epicenter. We present the algorithmic analysis of an accepted method to locate seismic-volcanic signals and the design of a parallel application that implements it. We demonstrated that the implementation scales linearly with the number of events and the number of nodes. From the experimental data, we developed a model to predict execution time with an accuracy of 90%. We discuss widely about model derivation and assumptions. In special, the practical advantages of using simple experimental models instead of complex ones, if the simpler one has high accuracy. In that case the the ignored factors are represented by the error model.
THE EFFECT OF ABNORMAL AUDIT FEE ON AUDIT QUALITY Heny

This study aims to examine the effect of abnormal audit fees, which is the difference between actual audit fees and normal audit fee levels, on the audit quality proxied by accrual discretionary. The study was conducted on 414 samples of manufacturing companies listed on the Indonesia Stock Exchange for the 2013-2018 observation period. The multiple linear regression test results show a relationship between the main variables is asymmetric, which depends on the sign of abnormal audit fees. For observations with negative abnormal audit fees or below normal audit fee levels, it’s showed that there is no significant effect between audit quality and abnormal audit fees. The findings indicate that there is a negative effect between abnormal audit fees and audit quality when tested on observations with positive abnormal audit fees or above normal audit fee levels. These results indicate that there is a dependence between the auditor and the client when the client pays a high audit fee so that it is possible to let the client manage earnings through discretionary accruals, which decreases the audit
Cell death mechanisms induced by pore forming toxins with special focus on actinoporins

Pore-forming toxins (PFTs) are one of the weapons used by living beings to attack or self-defend. These proteins are secreted in soluble form but they undergo conformational changes, creating a pore in the host membrane. PFTs are distributed from bacteria to mammals. Their binding to membrane leads to cell swelling, imbalance of ionic gradients and cell death. The cell death mechanisms induced by bacterial PFTs are the best characterized; by contrast, eukaryotic PFTs have been less studied than their bacterial counterparts, perhaps due to their lower impact on human health. Among eukaryotic PFTs, actinoporins (APs) constitute a particular family produced by sea anemones. The interest in actinoporins has risen due to their high cytotoxicity that can be used to design immunotoxins against tumor cells and molecule delivery systems to cell cytosol. In this review we describe the main cell death mechanism induced by PFTs with particular focus on sticholysins I and II (Sts, StI/StII) two APs thoroughly studied in our laboratory. Understanding the death cell mechanisms triggered by Sts and other APs is of the utmost importance due to their potential applications to treat several pathological conditions in humans. Work is in progress in our Center with these toxins in this direction.