Miracle-dz/UniFAR-FTUs huggingface dataset:
Assessing the Contact Angle Between Dentin Treated With Irrigation and Calcium Hydroxide and Root Canal Sealers

Background The long-term use of calcium hydroxide, or Ca(OH)2, on dentin has been established in the literature. However, scarce data is available on dentin wettability with Ca(OH)2. Aim The present study was conducted to assess the outcomes of Ca(OH)2 use on the wettability of dentin following two and four weeks of using sealers of bioceramic (BC) and Tubli-Seal™ in the root canal. Methods In this study, 168 specimens were divided into 12 groups of 14 specimens each and were numbered from G1 to G12. G1-G6 groups were tested with Tubli-Seal. Sterile water irrigation was reserved for G1 for two weeks (14 days) followed by two minutes treatment with 6% sodium hypochlorite (NaOCl) chemical irrigation and 17% EDTA (10 ml). G2 and G3 were subjected to Ca(OH)2 (0.1 ml of UltraCal) for two weeks followed by 10ml sterile water irrigation for two minutes with chemical irrigation. G4 to G6 were given similar treatment for four weeks. G7-G12 were assessed for BC sealer similarly to G1-G6. Two and four weeks of incubation with sterile water or Ca(OH)2 was done in 100% humidity at 37°C. SEM and EDX were done to evaluate the surface morphology of G1 and G6, and results were formed. Results Significantly smaller contact angles were seen for Tubli-Seal (G1 to G6) compared to BC (G7 to G12) with p<0.05. Application of water irrigants and Ca(OH)2 (in G2, G5, and G11) showed a smaller (p<0.05, statistically significant) contact angle compared to the use of chemical irrigation agents and Ca(OH)2 (in G3, G6, and G12) except for G8 and G9. Based on EDX and SEM, compared to the use of chemical irrigation with Ca(OH)2, higher remnants of Ca(OH)2 were seen in the water irrigation, whereas, no remnant was seen with chemical irrigants. Conclusion Better dentin wettability is seen with Tubli-seal compared to BC sealer. A smaller contact angle between root canal sealers and dentin is seen in the remaining calcium hydroxide samples. Also, calcium hydroxide can be removed from the polished dentin surface with two minutes of irrigation with 17% EDTA and 6% NaOCl.
Review of Bioactivity, Isolation, and Identification of Active Compounds from Antrodia cinnamomea

Antrodia cinnamomea is a precious and popular edible and medicinal mushroom. It has attracted increasing attention due to its various and excellent bioactivities, such as hepatoprotection, hypoglycemic, antioxidant, antitumor, anticancer, anti-inflammatory, immunomodulation, and gut microbiota regulation properties. To elucidate its bioactivities and develop novel functional foods or medicines, numerous studies have focused on the isolation and identification of the bioactive compounds of A. cinnamomea. In this review, the recent advances in bioactivity, isolation, purification, and identification methods of active compounds from A. cinnamomea were summarized. The present work is beneficial to the further isolation and discovery of new active compounds from A. cinnamomea.
Widespread Torpor Use in Hummingbirds from the Thermally Stable Lowland Tropics

Torpor, the temporary reduction of metabolic rate and body temperature, is a common energy-saving strategy in endotherms. Because of their small body size and energetically demanding life histories, hummingbirds have proven useful for understanding when and why endotherms use torpor. Previous studies of torpor in hummingbirds have been largely limited to tropical montane species or long-distance migrants that regularly experience challenging thermal conditions. Comparatively little is known, however, about the use of torpor in hummingbirds of the lowland tropics, where relatively high and stable year-round temperatures may at least partially negate the need for torpor. To fill this knowledge gap, we tested for the occurrence of torpor in tropical lowland hummingbirds (n=37 individuals of six species) from central Panama. In controlled experimental conditions simulating the local temperature regime, all six species used torpor to varying degrees and entered torpor at high ambient temperatures (i.e., ≥28°C), indicating that hummingbirds from the thermally stable lowland tropics regularly use torpor. Torpor reduced overnight mass loss, with individuals that spent more time in torpor losing less body mass during temperature experiments. Body mass was the best predictor of torpor depth and duration among and within species—smaller species and individuals tended to use torpor more frequently and enter deeper torpor. Average mass loss in our experiments (∼8%–10%) was greater than that reported in studies of hummingbirds from higher elevation sites (∼4%). We therefore posit that the energetic benefits accrued from torpor may be limited by relatively high nighttime temperatures in the lowland tropics, although further studies are needed to test this hypothesis.
All-Cellulose Composite Laminates Made from Wood-Based Textiles: Effects of Process Conditions and the Addition of TEMPO-Oxidized Nanocellulose

All-cellulose composites (ACCs) are manufactured using only cellulose as a raw material. Biobased materials are more sustainable alternatives to the petroleum-based composites that are used in many technical and life-science applications. In this study, an aquatic NaOH-urea solvent system was used to produce sustainable ACCs from wood-based woven textiles with and without the addition of TEMPO-oxidized nanocellulose (at 1 wt.-%). This study investigated the effects of dissolution time, temperature during hot press, and the addition of TEMPO-oxidized nanocellulose on the mechanical and thermal properties of the composites. The results showed a significant change in the tensile properties of the layered textile composite at dissolution times of 30 s and 1 min, while ACC elongation was the highest after 2 and 5 min. Changes in hot press temperature from 70 °C to 150 °C had a significant effect: with an increase in hot press temperature, the tensile strength increased and the elongation at break decreased. Incorporating TEMPO-oxidized nanocellulose into the interface of textile layers before partial dissolution improved tensile strength and, even more markedly, the elongation at break. According to thermal analyses, textile-based ACCs have a higher storage modulus (0.6 GPa) and thermal stabilization than ACCs with nanocellulose additives. This study highlights the important roles of process conditions and raw material characteristics on the structure and properties of ACCs.
Canaried in the Coal Mine: What the Experiences and Outcomes of Students Considered Long-term English Learners Teach us About Pitfalls in English Learner Education…and What We Can Do About It

Abstract In this position paper, we draw on a wide, but non-exhaustive, review of existing literature to argue that long term English learner (LTEL)-considered students are uniquely positioned to expose fissures in the English learner (EL) education system more broadly. Examining both the early educational contexts that lead to students’ LTEL status, as well as later educational affordances once considered LTEL, we discuss four insights about EL education: (1) an overwhelming English language orientation, to the detriment of language diversity and core content instruction; (2) the provision of largely homogenous and often inappropriate educational supports and services; (3) a near-universal experience of stigmatization through the EL label and its resulting effects; and (4) a widespread and systemic pattern of unequal opportunity to learn. These four patterns lead us to propose a radical re-envisioning of the policy and practice framework for multilingual students: one that positions students as gifted, with assets to develop; one that centers educational affordances on the unique skills and interests of individual students; and one that, at its heart, embraces and builds multilingualism rather than shutting it down.
Comparative Effectiveness of Coronary Artery Bypass Graft Surgery and Percutaneous Coronary Intervention for Patients With Coronary Artery Disease: A Meta-Analysis of Randomized Clinical Trials

Percutaneous coronary intervention (PCI) and coronary artery bypass graft (CABG) surgery are the options for revascularization in coronary artery disease (CAD). This meta-analysis aims to compare the efficacy of CABG and PCI for the management of patients with CAD. The meta-analysis was conducted as per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, Cochrane Library, and EMBASE were searched for relevant articles. The reference list of included articles was also searched manually for additional publications. Primary endpoints were cardiovascular mortality and all-cause mortality. Secondary endpoints included myocardial infarction, stroke, and revascularization. In total, 12 randomized control trials (RCTs) were included in this meta-analysis encompassing 9,941 patients (4,954 treated with CABG and 4,987 with PCI). The analysis showed that PCI was associated with a higher risk of all-cause mortality (risk ratio (RR) = 1.26, 95% confidence interval (CI) = 1.10-1.45) and revascularization (RR = 2.42, 95% CI = 1.82-3.21). However, no significant differences were reported between two arms regarding cardiovascular mortality (RR = 1.15, 95% CI = 0.96-1.39), myocardial infarction (RR = 1.17, 95% CI = 0.82-1.67), and stroke (RR = 0.64, 95% CI = 0.35-1.16). CABG was associated with a significant reduction in all-cause mortality and revascularization compared to PCI. However, no significant difference was reported in the risk of cardiovascular mortality, myocardial infarction, and stroke between the two groups.
IMPACT OF BOARD AND AUDIT COMMITTEE CHARACTERISTICS ON ACCRUALS AND REAL EARNINGS MANAGEMENT IN PAKISTAN

Purpose: Despite a large number of regulations and standards governing the financial reporting process, earnings management is increasing at an alarming rate in organizations today. The aim of this study is to investigate the impact of board and audit committee characteristics on accruals and real earnings management practices in Pakistan. Design/Methodology/Approach: Earnings management as dependent variable is measured by using two model: Kothari et al., (2005) and Roy chowdhury (2006). Whereas, board size, board independence, CEO duality, audit committee size, audit committee independence and audit committee activity are the independent variables. This study was based on data collected from 235 non-financial firms listed on Pakistan Stock Exchange (PSX) from 2008 to 2015. The relationship was investigated by means of panel data estimation. Findings: The result revealed CEO duality is positively related with accruals earnings management. Whereas, board independence is negatively related and CEO duality, board activity and audit committee independence are positively related with real earnings management. Implications/Originality/Value: The findings of the study are important for investors, regulators, and legislators in their attempt to constrain the incidence of earnings management and improve financial reporting quality.
On the convective instability of hot radiative accretion flows

How many fraction of gas available at the outer boundary can finally fall onto the black hole is an important question. It determines the observational appearance of accretion flows, and is also related with the evolution of black hole mass and spin. Previous two-dimensional hydrodynamical simulations of hot accretion flows find that the flow is convectively unstable because of its inward increase of entropy. As a result, the mass accretion rate decreases inward, i.e., only a small fraction of accretion gas can fall onto the black hole, while the rest circulates in the convective eddies or lost in convective outflows. Radiation is usually neglected in these simulations. In many cases, however, radiative cooling is important. In the regime of the luminous hot accretion flow (LHAF), radiative cooling is even stronger than the viscous dissipation. In the one dimensional case, this implies that the inward increase of entropy will become slower or the entropy even decreases inward in the case of an LHAF. We therefore expect that convective instability becomes weaker or completely disappears when radiative cooling is important. To examine the validity of this expectation, in this paper we perform two-dimensional hydrodynamical simulations of hot accretion flows with strong radiative cooling. We find that compared to the case of negligible radiation, convection only becomes slightly weaker. Even an LHAF is still strongly convectively unstable, its radial profile of accretion rate correspondingly changes little. We find the reason is that the entropy still increases inward in the two-dimensional case.
An Evaluation of Current Leadership Practices in Secondary Schools in Madrid

This study aims to evaluate the leadership practices of a sample of secondary school principals in the Madrid region. An attempt will be made to provide some insights into their professional profile, their performance of leadership tasks, and the different elements that define their leadership model. An online questionnaire was used to collect their opinions on the day-to-day performance of their leadership role, as well as on the factors that influence their leadership style. From a methodological point of view, a quantitative approach is used within an interpretative framework, given that the emphasis is not on the generalisation of results but on understanding how school principals operate in their particular context. Results revealed that instructional leadership in Spain is still seen as a challenging goal for principals. This is closely in line with the bureaucratic nature of the headship role in Spanish schools.
The Dramatic Kinematics of the Hydrogen-deficient Planetary Nebula Abell 30

The remarkable velocity structure of the different components of the hydrogen-deficient planetary nebula Abell 30 have been revealed for the first time by obtaining spatially resolved profiles of the [O III] λ5007 lines with the Manchester echelle spectrometer combined with the 2.1 m San Pedro Mártir telescope. The outer 2' diameter shell is shown to be a mild ellipsoid expanding along its minor axis at 38.5 km s-1. The radial motions of the prominent knots in the core are consistent to some extent with their origin in radiatively ionized clumps in both an equatorial disk and polar directions all expanding radially from the star at ≈ 39 km s-1. However, it is the ±200 km s-1 velocity “spikes” in the position-velocity arrays of [O III] λ5007 profiles over the edges of the irregular shells surrounding the bright core that give direct evidence of the presence of ablated flows driven by the fast wind from the central star.
ON ORDERED Γ-SEMIGROUPS

In this paper we show the way we pass from ordered semigroups to ordered -semigroups. Moreover we show that, exactly as in ordered semigroups, in the results of ordered -semigroups based on right (left) ideals, quasi-ideals and bi-ideals, points do not play any essential role, but the sets, which shows their pointless character. Under the methodology using in this paper, all the results of ordered semigroups can be transferred into ordered -semigroups.
Manganese waste liquid derived MnFe2O4/RGO fabric for microwave blocking, high stable strain and temperature sensing

Herein, a MnFe2O4/RGO knitted fabric derived from manganese waste was constructed by a simple in-situ assembled coating method, involving the incorporation of Graphene Oxide (GO) and manganese ferrite nanoparticles on polyester fabric, followed reducing by hydrazine hydrate. The reuse of manganese waste from the preparation of GO can reduce chemical waste emissions and endow the absorption performance. The coated particles possess certain magnetism can be attracted and securely collected in seconds, which is convenient for recycling. This fabric gives well microwave absorption with the maximum reflection loss (RL) of −58.6 dB at 9.1 GHz by a thickness of 1.9 mm. In addition, this fabric presents high stable strain sensing under 1000 stretching and bending cycles. Meanwhile, the resistance-deformation-velocity relationship is provided based on the structure, for the analysis of electromechanical behaviors. Moreover, the fabric has the capability for temperature sensing (TCR=−0.738%/°C), and fire alarm. As such, this fabric can be promising alternatives for a wide application on motion and temperature sensing, microwave blocking.
A new insight into the mode of action between cement containing montmorillonite and polycarboxylate superplasticizer

In this study, a PCE polymer was synthesized by copolymerizing isopentenyl polyoxyethylene ether (TPEG) with trans-2-butenedioic acid (FA). Thereafter, the dispersing effect of the resulting PCE polymer was evaluated via spread flow tests in cement pastes containing varying amounts of montmorillonite (MMT). The ultimate objective of this study was to investigate the mode of action between PCE polymer and MMT in cement paste and thus provide strategies to minimize the negative impact of MMT on PCE efficiency. The adsorbed amount of the PCE polymer linearly increased with the increasing dosage of MMT, whereas the spread flow of cement pastes linearly decreased with the increasing dosage of MMT. X-ray diffraction (XRD) results revealed that PCE/MMT ratio was critical in the sorption process, where electrostatic attraction played a significant role at low PCE/MMT ratios, whereas side chain intercalation dominated at high PCE/MMT ratios. The reduction in flowability caused by PCE is primarily attributed to the competitive adsorption of MMT in cement paste.
Point Source Approximation Methods in Inverse Obstacle Reconstruction Problems

We consider point source approximation methods for the solution of inverse object reconstruction problems for the Laplace and the Helmholtz equation. We present a two-step algorithm to reconstruct the neighbourhood of the obstacle by a proper choice of approximation domains, first. Then we reconstruct the obstacle in the second step of the algorithm by varying the approximation domains adaptively. We formulate this two-step algorithm for the point source method, the singular sources method and the probe method. Moreover we show numerical examples both for the Laplace and the Helmholtz equation in two and three dimensions, respectively. Finally, we compare the point source approximation methods with the factorisation and the linear sampling method both for exact data and noisy data.
Five-Year Cardiovascular Outcomes after Infective Endocarditis in Patients with versus without Drug Use History

Background: Disparities in treatment and outcomes of infective endocarditis (IE) between people who use drugs (PWUD) and non-PWUD have been reported, but long-term data on cardiovascular and cerebrovascular outcomes are limited. We aim to compare 5-year rates of mortality, cardiovascular and cerebrovascular events after IE between PWUD and non-PWUD. Methods: Using data from the TriNetX Research Network, we examined 5-year cumulative incidence of mortality, myocardial infarction, heart failure, atrial fibrillation/flutter, ventricular tachyarrhythmias, ischemic stroke, and intracranial hemorrhage in 7132 PWUD and 7132 propensity score-matched non-PWUD patients after a first episode of IE. We used the Kaplan–Meier estimate for incidence and Cox proportional hazards models to estimate relative risk. Results: Matched PWUD were 41 ± 12 years old; 52.2% men; 70.4% White, 19.8% Black, and 8.0% Hispanic. PWUD had higher mortality vs. non-PWUD after 1 year (1–3 year: 9.2% vs. 7.5%, p = 0.032; and 3–5-year: 7.3% vs. 5.1%, p = 0.020), which was largely driven by higher mortality among female patients. PWUD also had higher rates of myocardial infarction (10.0% vs. 7.0%, p < 0.001), heart failure (19.3% vs. 15.2%, p = 0.002), ischemic stroke (8.3% vs. 6.3%, p = 0.001), and intracranial hemorrhage (4.1% vs. 2.8%, p = 0.009) compared to non-PWUD. Among surgically treated PWUD, interventions on the tricuspid valve were more common; however, rates of all outcomes were comparable to non-PWUD. Conclusions: PWUD had higher 5-year incidence of cardiovascular and cerebrovascular events after IE compared to non-PWUD patients. Prospective investigation into the causes of these disparities and potential harm reduction efforts are needed.
Comparison of Boltzmann kinetics with quantum dynamics for a chiral Yukawa model far from equilibrium

Boltzmann equations are often used to describe the nonequilibrium time-evolution of many-body systems in particle physics. Prominent examples are the computation of the baryon asymmetry of the universe and the evolution of the quark-gluon plasma after a relativistic heavy ion collision. However, Boltzmann equations are only a classical approximation of the quantum thermalization process, which is described by so-called Kadanoff-Baym equations. This raises the question how reliable Boltzmann equations are as approximations to the complete Kadanoff-Baym equations. Therefore, we present in this article a detailed comparison of the Boltzmann and the Kadanoff-Baym equations in the framework of a chirally invariant Yukawa-type quantum field theory including fermions and scalars. The obtained numerical results reveal significant differences between both types of equations. Apart from quantitative differences, on a qualitative level the late-time universality respected by the Kadanoff-Baym equations is severely restricted in the case of the Boltzmann equations. Furthermore, the Kadanoff-Baym equations strongly separate the time scales between kinetic and chemical equilibration. In contrast to this standard Boltzmann equations cannot describe the process of quantum-chemical equilibration, and consequently also cannot feature the above separation of time scales.
Cellulose Triacetate-Based Mixed-Matrix Membranes with MXene 2D Filler—CO2/CH4 Separation Performance and Comparison with TiO2-Based 1D and 0D Fillers

Mixed-matrix membranes (MMMs) possess the unique properties and inherent characteristics of their component polymer and inorganic fillers, or other possible types of additives. However, the successful fabrication of compact and defect-free MMMs with a homogeneous filler distribution poses a major challenge, due to poor filler/polymer compatibility. In this study, we use two-dimensional multi-layered Ti3C2Tx MXene nanofillers to improve the compatibility and CO2/CH4 separation performance of cellulose triacetate (CTA)-based MMMs. CTA-based MMMs with TiO2-based 1D (nanotubes) and 0D (nanofillers) additives were also fabricated and tested for comparison. The high thermal stability, compact homogeneous structure, and stable long-term CO2/CH4 separation performance of the CTA-2D samples suggest the potential application of the membrane in bio/natural gas separation. The best results were obtained for the CTA-2D sample with a loading of 3 wt. %, which exhibited a 5-fold increase in CO2 permeability and 2-fold increase in CO2/CH4 selectivity, compared with the pristine CTA membrane, approaching the state-of-the-art Robeson 2008 upper bound. The dimensional (shape) effect on separation performance was determined as 2D > 1D > 0D. The use of lamellar stacked MXene with abundant surface-terminating groups not only prevents the aggregation of particles but also enhances the CO2 adsorption properties and provides additional transport channels, resulting in improved CO2 permeability and CO2/CH4 selectivity.
CAR-T Cell therapy in T-cell malignancies: limitations and solutions

CD19-targeted chimeric antigen receptor (CAR)-T cell therapy has shown high potential for treating B-cell hematological malignancies and has been approved by the US FDA. However, CAR-T cell therapy for T-cell hematologic malignancies poses feasibility challenges, including the difficulty of obtaining sufficient healthy cells from patients, CAR-T cell fratricide, and the risk of immunodeficiency. In this review, we discuss bottlenecks and possible solutions in CAR-T cell therapy for T-cell acute lymphoblastic leukemias, as well as future directions in this field.