Miracle-dz/UniFAR-FTUs huggingface dataset:
Near-Slit Effects on the Flow and Heat Transfer from a Stretching Plate in a Porous Medium

The flow and heat transfer characteristics over a linearly stretching surface with suction or injection at the surface in a porous medium with internal heat generation or absorption are studied numerically for uniform surface temperature. The full governing equations are all considered for mapping out the solution near the slit and far away downstream from the extrusion slit. The effects of different parameters such as Darcy resistance (k 1), Prandtl number (Pr), heat generation or absorption (Q), suction or injection (f w ), and Reynolds number (Re) on the flow and heat transfer are studied. The results are presented in dimensionless forms of the skin friction coefficients and Nusselt numbers . Critical Reynolds numbers are obtained to distinguish between the self-similar and the nonsimilar regions using the various parameters mentioned earlier. The region very close to the slit is characterized by a large heat transfer rate to the porous medium, which increases with increasing absorption, Prandtl number, suction, and Darcy resistance. However, downstream, where the similarity solution is valid, both the heat transfer coefficient and the skin friction coefficient reach asymptotic values depending on the other parameters mentioned earlier and are Reynolds number-independent. Finally, results for the skin friction coefficient near the slit are also obtained with the critical Reynolds number to distinguish between the nonsimilar and similar regions.
Impact of COVID-19 disease on obstetric outcomes in the third trimester of pregnancy

Objectives: The aim of this study is to evaluate the effect of coronavirus disease 2019 (COVID-19) diagnosed in the third trimester of pregnancy on maternal, fetal, and obstetric outcomes. Methods: This retrospective study included 109 pregnant women hospitalized with a diagnosis of COVID-19 during the third trimester of pregnancy (28-40 weeks) in a tertiary center between March 1 and December 31, 2020. Demographic characteristics, clinical signs, and obstetric outcomes of the patients were searched for analysis. Laboratory and x-ray results were reported, and treatment methods were summarized. Finally, mother-newborn results were recorded. Results: We included one hundred nine pregnant women in this study. We divided the patients into two groups as those with positive PCR test (n = 59) and negative PCR test and possible covid patients (n = 50) whose symptoms and histories meet the covid criteria. The mean age of the patients was 28.90 ± 6.21 years, and the mean week of gestation was 37.45 ± 2.29 weeks. Half of the patients were asymptomatic (n = 57, 47.7%), and 69% of all patients were delivered by cesarean section. The hospitalization time of antigen-positive cases was between 2-9 days. The mean lymphocyte count was 1.37 ± 0.45 ×103/mL in the PCR positive patient group, and this value was 1.67 ± 0.54 103/mL in the PCR negative patients (p = 0.007). While the mean neutrophil count was 8.13±3.16 ×103/mL in the PCR positive patient group, this value was 10.99 ± 4.14 ×103/mL in the PCR negative patients (p < 0.001). Fifteen patients required intensive care unit follow-up, and 2 of them died while receiving mechanical ventilator support. Conclusions: COVID-19 infection in the third trimester of pregnancy does not affect fetal and maternal outcomes if the disease is under control at an early stage. In hospitalized patients, symptoms are more precious than antigen testing.
On fuzzy familywise error rate and false discovery rate procedures for discrete distributions

Fuzzy multiple comparisons procedures are introduced as a solution to the problem of multiple comparisons for discrete test statistics. The critical function of the randomized p-values is proposed as a measure of evidence against the null hypotheses. The classical concept of randomized tests is extended to multiple comparisons. This approach makes all theory of multiple comparisons developed for continuously distributed statistics automatically applicable to the discrete case. Examples of familywise error rate and false discovery rate procedures are discussed and an application to linkage disequilibrium testing is given. Software for implementing the procedures is available. Copyright 2009, Oxford University Press.
Injectable Hydrogel Membrane for Guided Bone Regeneration

In recent years, multicomponent hydrogels such as interpenetrating polymer networks (IPNs) have emerged as innovative biomaterials due to the synergistic combination of the properties of each network. We hypothesized that an innovative non-animal IPN hydrogel combining self-setting silanized hydroxypropyl methylcellulose (Si-HPMC) with photochemically cross-linkable dextran methacrylate (DexMA) could be a valid alternative to porcine collagen membranes in guided bone regeneration. Calvaria critical-size defects in rabbits were filled with synthetic biphasic calcium phosphate granules in conjunction with Si-HPMC; DexMA; or Si-HPMC/DexMA experimental membranes; and in a control group with a porcine collagen membrane. The synergistic effect obtained by interpenetration of the two polymer networks improved the physicochemical properties, and the gel point under visible light was reached instantaneously. Neutral red staining of murine L929 fibroblasts confirmed the cytocompatibility of the IPN. At 8 weeks, the photo-crosslinked membranes induced a similar degree of mineral deposition in the calvaria defects compared to the positive control, with 30.5 ± 5.2% for the IPN and 34.3 ± 8.2% for the collagen membrane. The barrier effect appeared to be similar in the IPN test group compared with the collagen membrane. In conclusion, this novel, easy-to-handle and apply, photochemically cross-linkable IPN hydrogel is an excellent non-animal alternative to porcine collagen membrane in guided bone regeneration procedures.
The Effect of Magnetic Resonance Imaging Based Radiomics Models in Discriminating stage I–II and III–IVa Nasopharyngeal Carcinoma

Background: Nasopharyngeal carcinoma (NPC) is a common tumor in China. Accurate stages of NPC are crucial for treatment. We therefore aim to develop radiomics models for discriminating early-stage (I–II) and advanced-stage (III–IVa) NPC based on MR images. Methods: 329 NPC patients were enrolled and randomly divided into a training cohort (n = 229) and a validation cohort (n = 100). Features were extracted based on axial contrast-enhanced T1-weighted images (CE-T1WI), T1WI, and T2-weighted images (T2WI). Least absolute shrinkage and selection operator (LASSO) was used to build radiomics signatures. Seven radiomics models were constructed with logistic regression. The AUC value was used to assess classification performance. The DeLong test was used to compare the AUCs of different radiomics models and visual assessment. Results: Models A, B, C, D, E, F, and G were constructed with 13, 9, 7, 9, 10, 7, and 6 features, respectively. All radiomics models showed better classification performance than that of visual assessment. Model A (CE-T1WI + T1WI + T2WI) showed the best classification performance (AUC: 0.847) in the training cohort. CE-T1WI showed the greatest significance for staging NPC. Conclusion: Radiomics models can effectively distinguish early-stage from advanced-stage NPC patients, and Model A (CE-T1WI + T1WI + T2WI) showed the best classification performance.
Illuminative evaluation

This paper traces the origins of the notion of illuminative evaluation as an alternative approach to examining the effectiveness of educational institutions and innovations in contrast to the positivist paradigm traditionally favoured by psychologists. The key elements of an illuminative approach are identified and incorporated into a recently constructed model which is illustrated by reference to an ongoing school-focused project. It is suggested that such an approach has a great deal to offer to systems-oriented educational psychologists and those involved in work of a consultancy nature.
Older Adults’ Experiences, Worries and Preventive Measures Regarding Home Hazards: A Survey on Home Safety in Sweden

Home safety is important for preventing injuries and accidents among older adults living at home. Feeling safe at home is also essential for older adults’ well-being. Thus, this study aimed to explore older adults’ perceptions of safety in their homes by examining their experiences, worries and preventive measures in relation to a range of potential home-based health and safety hazards. The study was a national cross-sectional telephone survey of 400 randomly selected adults over 70 years of age living at home in ordinary housing in Sweden. Participants were asked for their experience of, worry about, and preventive measures taken regarding fifteen home hazards. Data were also collected on background variables including age, health, and cohabitation status. Falls and stab/cut injuries were the most experienced hazards and worry was highest for burglary and falls, while preventive measures were most common for fire and burglary. While older adults’ experience and worry regarding home hazards were associated with preventive measures, these associations were not strong and other factors were associated with preventive behaviour. Further identification of the main determinants of older adults’ preventive behaviour can contribute to policy for effectively reducing home accidents.
Geometric alignment for large point cloud pairs using sparse overlap areas

We present a novel approach for geometric alignment of 3D sensor data. The Iterative Closest Point (ICP) algorithm is widely used for geometric alignment of 3D models as a point-to-point matching method when an initial estimate of the relative pose is known. However, the accuracy of the correspondence between point and point is difficult when the points are sparsely distributed. In addition, the searching cost is high because the ICP algorithm requires a search of the nearest-neighbor points at every minimization. In this paper, we describe a plane-to-plane registration method. We define the distance between two planes and estimate the translation parameter by minimizing the distance between the planes. The plane-to-plane method is able to register the set of scatter points which are sparsely distributed and the density is low with low cost. We tested this method with the large scatter points of a manufacturing plant and show the effectiveness of our proposed method.
Variable wavelength microinterferometry applied for irregular fibres

A method is suggested to determine the spectral dispersion curves of the refractive indices of irregular fibres. This suggested method depends on variable wavelength microinterferometry, taking into consideration the enclosed area under the fringe shift. Also, this method solves the problem of determining the transverse-sectional area of these fibres. The mathematical analysis of the method is given. A Pluta double-refracting polarizing interference microscope is used jointly with the suggested method to determine the spectral dispersion curves of the refractive indices of two samples of acrylic fibres (denier 2 and Dralon). Microinterferograms are given for illustration.
Dielectric spectroscopy for bioanalysis: From 40 Hz to 26.5 GHz in a microfabricated wave guide

We report developing coplanar waveguide devices which can perform dielectric spectroscopy on biological samples within a microfluidic channel or well. Since coupling to the fluid sample is capacitive, no surface functionalization or chemical sample preparation are required. Data on cell suspensions and solutions of proteins and nucleic acids spanning the frequency range from 40 Hz to 26.5 GHz are presented. Low-frequency data are well explained using a simple dispersion model. At microwave frequencies, the devices yield reproducible and distinguishable spectral responses for hemoglobin solution and live E. coli.
Urokinase System in Pathogenesis of Pulmonary Fibrosis: A Hidden Threat of COVID-19

Pulmonary fibrosis is a common and threatening post-COVID-19 complication with poorly resolved molecular mechanisms and no established treatment. The plasminogen activator system, including urokinase (uPA) and urokinase receptor (uPAR), is involved in the pathogenesis of COVID-19 and contributes to the development of lung injury and post-COVID-19 pulmonary fibrosis, although their cellular and molecular underpinnings still remain obscure. The aim of the current study was to assess the role of uPA and uPAR in the pathogenesis of pulmonary fibrosis. We analyzed uPA and uPAR expression in human lung tissues from COVID-19 patients with pulmonary fibrosis using single-cell RNA-seq and immunohistochemistry. We modeled lung fibrosis in Plau-/- and Plaur-/- mice upon bleomycin instillation and explored the effect of uPAR downregulation in A549 and BEAS-2B lung epithelial cells. We found that uPAR expression drastically decreased in the epithelial airway basal cells and monocyte/macrophage cells, whereas uPA accumulation significantly increased in tissue samples of COVID-19 patients. Lung injury and fibrosis in Plaur-/- vs. WT mice upon bleomycin instillation revealed that uPAR deficiency resulted in pro-fibrogenic uPA accumulation, IL-6 and ACE2 upregulation in lung tissues and was associated with severe fibrosis, weight loss and poor survival. uPAR downregulation in A549 and BEAS-2B was linked to an increased N-cadherin expression, indicating the onset of epithelial–mesenchymal transition and potentially contributing to pulmonary fibrosis. Here for the first time, we demonstrate that plasminogen treatment reversed lung fibrosis in Plaur-/- mice: the intravenous injection of 1 mg of plasminogen on the 21st day of bleomycin-induced fibrosis resulted in a more than a two-fold decrease in the area of lung fibrosis as compared to non-treated mice as evaluated by the 42nd day. The expression and function of the plasminogen activator system are dysregulated upon COVID-19 infection, leading to excessive pulmonary fibrosis and worsening the prognosis. The potential of plasminogen as a life-saving treatment for non-resolving post-COVID-19 pulmonary fibrosis warrants further investigation.
Spatial emission tomography reconstruction using Pitman‐Yor process

In this paper, we address the problem of emission tomography spatial reconstruction in three dimensions following a Bayesian nonparametric approach. Our model makes use of a generalization of the Dirichlet process called Pitman‐Yor process. The problem in this approach is to deal with the infinite representation of the distribution in the inference. So we propose an efficient Markov Chain Monte‐Carlo sampling scheme which is able to generate samples from the posterior distribution of the activity distribution. An application to 3D‐PET reconstruction is presented.
Adaptive control with discontinuous σ-factor and saturation for improved robustness

An adaptive control law is proposed to improve the robustness of the adaptive system with respect to fast unmodelled dynamics represented by a singular perturbation. The new law is based on saturation of the regressor and control parameter vector with inclusion of a discontinuous σ-factor. The analysis of the resulting system is presented and the conclusions are illustrated by simulations. The introduction of a discontinuous σ-factor represents an extension of an earlier work. The advantages of this extension include global stability, with less restrictive assumptions, and better transient behaviour.
A framework for the delivery of cognitive behaviour therapy in the educational psychology context

Mental health problems among children and young people are now widespread and affecting their social, emotional and behavioural functioning in schools and communities. Increasingly, teachers, parents and pupils are seeking psychological support and advice in meeting the needs of this vulnerable group, yet there is currently no guarantee that the essential expertise and time will be readily available to meet this demand. The treatment choice for the majority of mental health problems is cognitive behaviour therapy (CBT), and with the emerging evidence base of its successful application in the child and adolescent population it appears set to become an integral part of the educational psychologist’s repertoire. Postgraduate training courses are seeking to provide additional training in CBT and other psychotherapies. Practitioners are taking action to become skilled in a range of CBT allied techniques and making definitive statements about the need to have time for this type of ‘real’ psychology. This paper is a review that addresses what CBT is, including its psychological origins and the key elements, the latest evidence of its usefulness, how it is done, the problems and solution of using a cognitive-developmental framework for applying CBT to children and young people and some exemplars of specific techniques and applications.
Odnos između percepcije situacije, anksioznosti i nekih aspekata ponašanja povezanih s korištenjem digitalne tehnologije tijekom pandemije bolesti COVID-19

into chronic stress. Like any other chronic stress, this pandemic has left, and is still leaving significant consequences for mental health. Accordingly, the objectives of this study were to examine the relationship between situation perception (severity and vulnerability), anxiety, and some aspects of cyber behaviour – nomophobia and cyberchondria. The research was conducted of two measurement points (in the first and fourth week since the start of the pandemic, more precisely from March 13 to 20 and April 3 to 10, 2020), on a sample of male and female students in the Republic of Croatia (N 1 =358; N 2 =196). For the purposes of this study, the following measurement instruments were used: The Depression Anxiety Stress Scale, Nomophobia Questionnaire, and Short Cyberchondria Scale. Results of the study suggest those individuals who perceive their vulnerability as greater and the situation as more serious experience higher levels of anxiety, nomophobia, and cyberchondria. Furthemore, the results indicate that students who experience more anxiety symptoms also experience higher levels of nomophobia, or cyberchondria. By examining the role of anxiety in explaining the connection between the perception of the situation and behaviour related to the use of digital technology, it was shown that anxiety is a partial mediator when the source variable is nomophobia, and a complete mediator in the model where cyberchondria is the source variable.
Diagnosing the waveform of an ultrashort optical pulse by collinear interferometry

During the high-harmonic generation (HHG) process, information about field interaction with the medium is imprinted in the extreme ultraviolet (XUV) radiation. Here, we present a method for using HHG to diagnose the electric field of an optical pulse under a collinear geometry. When mixing a weak signal pulse with a strong driving pulse collinearly, the far field divergence of the XUV HHG is sensitive to the relative delay between the two pulses, which can be used as an ultrafast subcycle gate to reconstruct the electric field of the signal pulse. This collinear configuration is efficient, easy to operate and avoids artificial high order frequency components in reconstruction as compared to non-collinear schemes.
Young’s modulus measurements of thin films using micromechanics

Electrostatically deflectable cantilever beams (1000–9000 A thick, 120–8.3 μm long) have been fabricated from a number of thin insulating films prepared by a variety of deposition methods. Measurements of the transverse mechanical resonant frequencies of these beams have been used to calculate Young’s modulus of the insulating thin films. This new technique is relatively simple and accurate and is applicable to a wide range of materials and deposition procedures.
Design of Highly Isolated Dual-Antenna System for Handset in Different Scenarios

To mitigate the interference between antennas working at the same frequency band but for different protocols, high isolations are in demand. In this letter, a dual-antenna system, operating for the WLAN/Bluetooth protocols, has been designed on the top part of the mobile handset frame based on the correlation method. A high isolation of above 30 dB is achieved in both free space and the hand-loading scenario. The first antenna is chosen on the corner of the frame for easy excitation of the modes. Afterwards, the location of the second port, which is least correlated with the first antenna, is calculated and determined from MATLAB, leading to low coupling with the first antenna in free space. To maintain the high isolations in the hand-loading scenario, the handset is slightly modified with one more breaking on the frame. The antennas can also be decoupled when the correlation method is directly applied to the hand-loaded antennas. The proposed dual-antenna system has been fabricated and measured, exhibiting good performances in different scenarios.
The effect of photoresist contrast on the exposure profiles obtained with evanescent fields of nanoapertures

We propose a simple theoretical model to predict the exposure profiles of a photoresist obtained with evanescent fields of nanoapertures. Assuming the electric field intensity to be a Gaussian distribution function with an exponential decay, the top critical dimension and the depth of the photoresist profile are described with analytic formulas. The profiles are analyzed as a function of the photoresist contrast and the electric field intensity decay length.
The core mass at the helium flash: influence of numerical and physical inputs

Les traces d'evolution pour la sequence principale et les geantes rouges ont ete calcules pour les etoiles de population I et II dans l'etendue 0,7 Mo<M<1 Mo jusqu'au flash d'helium. Les masses des noyaux ont ete trouvees 4% plus grandes que celles evaluees par d'autres auteurs. L'origine de ce desaccord est retrace en changeant quelques parametres d'entree physiques et en testant quelques algorithmes pour l'integration numerique, principalement la technique de derive de l'enveloppe
Three-Dimensional Assessment of Temporomandibular Joint Morphology and Facial Asymmetry in Individuals with Different Vertical Skeletal Growth Patterns

The aim of the current study was to investigate, by means of Cone-Beam Computed Tomography (CBCT), condyle–fossa relationship, temporomandibular joint (TMJ) morphology and facial asymmetry in subjects with different vertical skeletal growth patterns. CBCT of 56 patients (112 TMJs) were categorized into three groups according to the mandibular plane angle (MP): Hypodivergent (MP ≤ 23°), Normodivergent (23° < MP < 30°), and Hyperdivergent (MP ≥ 30°). TMJ spaces, width and depth of the condyle and thickness of the fossa were measured. Horizontal and vertical measurements were used to assess facial asymmetry. One-way Analysis of Variance (ANOVA) and post-hoc Turkey tests were computed for the between-groups comparison. Statistical significance was set at p < 0.05. Larger anterior joint space and smaller condylar dimensions (medio-lateral diameter and medio-lateral thickness) were observed in the hyperdivergent group compared to the normodivergent and hypodivergent groups. Right condylar distances to midsagittal plane were significantly larger than left distances in all the three groups. A vertical pattern of growth in healthy individuals seems to be associated with condylar position and dimension, while facial asymmetry values do not differ among different vertical groups.