Miracle-dz/UniFAR-FTUs huggingface dataset:
Investigation of the super healing theory in continuum damage and healing mechanics

Self-healing is the capability of a material to heal (repair) damages autogenously and autonomously. New theoretical investigation extended from the healing material which represents a strengthening material was recently proposed. It concerns the theory of super healing. The healing in this case continues beyond what is necessary to recover the original stiffness of the material, and the material becomes able to strengthen itself. In the present work, the definition of the super healing theory is extended and defined based on the elastic stiffness variation. It concerns the degradation, recovery, and strengthening of the elastic stiffness in the case of damage, healing, and super healing materials, respectively. Comparison of the healing and super healing efficiencies between the hypotheses of the elastic strain and elastic energy equivalence is carried out. The classical super healing definition is also extended to generalized nonlinear and quadratic super healing based on elastic stiffness strengthening, and comparison of the super healing behavior in each theory is performed. It is found that the hypothesis of the elastic energy equivalence overestimates both the generalized nonlinear and quadratic super healed elastic stiffness strengthening. In addition, the generalized nonlinear super healing theory gives a high strengthening of the super healed elastic stiffness compared to the quadratic super healing theory in both equivalence hypotheses. It is also demonstrated that both the generalized nonlinear and quadratic super healing theories can be applied in the case of plane stress.
Behavior of Human Bone Marrow-Derived Mesenchymal Stem Cells on Various Titanium-Based Coatings

The chemical composition and texture of titanium coatings can influence the growth characteristics of the adhered cells. An enhanced proliferation of the human mesenchymal stem cells (hMSCs) would be beneficial. The present study was aimed to investigate whether titanium deposited at different atmospheres would affect the cell growth properties, cellular morphology, and expression of surface markers of hMSCs. Titanium-based coatings were deposited on silicon wafers under oxygen, nitrogen, or argon atmospheres by ultra-short pulsed laser deposition using two different gas pressures followed by heating at 400 °C for 2 h. The characteristics of the coated surfaces were determined via contact angle, zeta potential, and scanning electron microscopy (SEM) techniques. Human MSCs were cultivated on differently coated silicon wafers for 48 h. Subsequently, the cell proliferation rates were analyzed with an MTT assay. The phenotype of hMSCs was checked via immunocytochemical stainings of MSC-associated markers CD73, CD90, and CD105, and the adhesion, spreading, and morphology of hMSCs on coated materials via SEM. The cell proliferation rates of the hMSCs were similar on all coated silicon wafers. The hMSCs retained the MSC phenotype by expressing MSC-associated markers and fibroblast-like morphology with cellular projections. Furthermore, no significant differences could be found in the size of the cells when cultured on all various coated surfaces. In conclusion, despite certain differences in the contact angles and the zeta potentials of various titanium-based coatings, no single coating markedly improved the growth characteristics of hMSCs.
Understanding Individual Neuron Importance Using Information Theory

In this work, we investigate the use of three information-theoretic quantities -- entropy, mutual information with the class variable, and a class selectivity measure based on Kullback-Leibler divergence -- to understand and study the behavior of already trained fully-connected feed-forward neural networks. We analyze the connection between these information-theoretic quantities and classification performance on the test set by cumulatively ablating neurons in networks trained on MNIST, FashionMNIST, and CIFAR-10. Our results parallel those recently published by Morcos et al., indicating that class selectivity is not a good indicator for classification performance. However, looking at individual layers separately, both mutual information and class selectivity are positively correlated with classification performance, at least for networks with ReLU activation functions. We provide explanations for this phenomenon and conclude that it is ill-advised to compare the proposed information-theoretic quantities across layers. Finally, we briefly discuss future prospects of employing information-theoretic quantities for different purposes, including neuron pruning and studying the effect that different regularizers and architectures have on the trained neural network. We also draw connections to the information bottleneck theory of neural networks.
DICOM-RT Plan Complexity Verification for Volumetric Modulated Arc Therapy

The purpose of this study was to investigate the relationship between plan parameters verified with DICOM-RT and dosimetric results for volumetric modulated arc therapy (VMAT). We investigated three treatment locations: prostate cancer (ten cases), maxillary sinus cancer (four cases), and malignant pleura mesothelioma (four cases) with treatment plans generated by a MonacoTM treatment planning system (TPS), and delivered with an Elekta SynergyTM linear accelerator. We calculated plan parameters, including gantry and multileaf collimator (MLC) positions, Monitor Units (MU), and millimeters of MLC motion per degree of gantry rotation (mm/degree), and performed quality assurance (QA) with a DICOM-RT plan verification system. We measured the VMAT dose with a two-dimensional diode array detector. The average gamma passing rate with percent dose acceptance criteria and distance to agreement criteria of 2 mm and 2% (2 mm/2%) were 97.4%, 97.8% and 92.0% for prostate cancer, maxillary sinus cancer, and malignant pleural mesothelioma, respectively. The mean 95th percentile value for DICOM-calculated mm/degree was 4.0, 5.2, and 11.1 for prostate cancer, maxillary sinus cancer, and malignant pleural mesothelioma, respectively. The gamma passing rate showed a correlation with calculated mm/degree, with a coefficient of determination (R2) of 0.60. Higher calculated mm/degree values led to increased dosimetric errors. We conclude that dose distribution calculated by a TPS is more reliable at smaller mm/degree.
First-episode psychosis as the initial presentation of multiple sclerosis: a case report

Background Multiple sclerosis (MS) is an inflammatory disease that affects the central nervous system (CNS). MS with episode of psychosis is a rare entity, and to the best of our knowledge, no case has been reported from Iran till date. Case presentation We report a case of MS with first-episode psychosis in a 27-year-old single man with no history of psychiatric disorder or drug abuse. The patient developed neurological symptoms after 3 months and was finally diagnosed as a case of MS. His symptoms started with behavioral dysfunctions and progressively resulted in depression. Subsequently, treatment was performed with citalopram 20 mg daily, risperidone 2 mg three times a day, and biperiden 2 mg three times a day; however, no improvements in the symptoms were observed. T2-weighted magnetic resonance imaging has demonstrated periventricular and white matter multiple sclerotic plugs with lesions. Eventually, MS was diagnosed after the appearance of paresthesia, upper and lower limb muscle weakness, ataxia, and urinary incontinency as typical signs. Then, the medications were changed to methylprednisolone and interferon therapy, which resulted in improvements in the clinical conditions of the patient. Conclusion Based on the fact that organic disorders such as MS may sometimes appear with initial pure psychiatric symptoms without any neurological signs and symptoms, examinations for symptoms linked to CNS dysfunction, cognitive changes, atypical symptoms, detailed neurological examination, and limited response to conventional antipsychotic drugs are highly recommended to be carried out for patients with first-episode psychosis and even in the followup period.
Non-surgical management of a pediatric “intoed” gait pattern – a systematic review of the current best evidence

Background An intoed gait pattern is one of the most common referrals for children to an orthopedic consultation. Parental concern as to the aesthetics of the child’s gait pattern and/or its symptomatic nature will primarily drive these referrals during a child’s early developmental years. Whilst some of these referrals prove to be the result of a normal growth variant, some children will present with a symptomatic intoed gait pattern. Various treatments, both conservative and surgical, have been proposed including: braces, wedges, stretches and exercises, shoe modifications, and surgical procedures. However, which treatments are effective and justified in the management of this condition is not clear within the literature. The aim of this systematic review was to therefore identify and critique the best available evidence for the non-surgical management of an intoed gait pattern in a pediatric population. Method A systematic review was conducted of which only experimental studies investigating a management option for an intoeing gait pattern were included. Studies needed to be written in English, pertaining to a human pediatric population, and published within a peer reviewed journal. Electronic databases were searched: Ovid (Medline), EMBASE, AMED, PubMed, SportDiscus, CINAHL, and Cochrane Library. The National Health and Medical Research Council’s designation of levels of hierarchy and the Critical Appraisal Skills Programme cohort studies critical appraisal tool were used. Results Five level IV studies were found. The studies were of varied quality and with mixed results. Gait plates, physiologic/standardized shoes, and orthotic devices (with gate plate extension) were shown to produce a statistically significant improvement to an intoed gait pattern. Shoe wedges, torqheels, and a leather counter splint were not able to reduce an intoed gait pattern. Conclusion There is limited evidence to inform the non-surgical management of a pediatric intoed gait pattern. The body of evidence that does exist is small (n = 5) and of varied quality, which means recommendations arising from this evidence base should be interpreted with caution. There is generally weak evidence that suggests that gait plates and orthotic devices with a gait plate extension may assist in the management of a pediatric intoed gait pattern.
Histological parameters to evaluate intestinal health on broilers challenged with Eimeria and Clostridium perfringens with or without enramycin as growth promoter

ABSTRACT The maintenance of integrity of the gastrointestinal tract is an important aspect for animal productivity, since it is able to absorb nutrients more efficiently and serves as a barrier against microorganisms. To control agents detrimental to intestinal integrity, growth‐promoting antibiotics (AGP) are used, which reduce the number of toxin‐producing microorganisms in the intestinal lumen, acting as anti‐inflammatory agents. There is a demand for restriction of use of AGP in animal feed, but there are few studies showing what parameters we should observe to search for alternative additives. The aim of this study was to establish histological parameters that explain the effect of enramycin as growth promoter on intestinal health in broilers challenged with Eimeria and Clostridium perfringens. The zootechnical performance and the histology by I See Inside (ISI) methodology were evaluated on liver and ileum samples. Chickens challenged without AGP have the worst BWG, FCR, and histological ISI score (ISI score 9) in the ileum compared to non‐challenged (ISI score 5). The use of enramycin on challenged group significantly minimized the ISI score in the ileum at 21 and 28 d (ISI score 7.4 and 8.0, respectively) compared with the challenged group not fed with enramycin (ISI score 9.2 and 9.9, respectively), associated with reduced lamina propria thickness and inflammatory cell infiltration. We suggest these 2 histological parameters as a standard to compare products for gut health.
Interaction instability of localization in quasiperiodic systems

Significance Understanding how small imperfections affect a system’s dynamics is one of the central questions of theoretical physics—namely, do properties change in a smooth way, such that small perturbation leads to small changes, or do they change discontinuously? Localization in disordered many-particle quantum systems has been shown to be stable to interactions. On a single-particle level, one can also achieve localization with a quasiperiodic potential—a system without disorder but with rich properties. It is believed that localization in disordered as well as in quasiperiodic potentials behaves in essentially the same way, in particular, that both are stable against interactions. We show that this is not so. A quasiperiodic localized system discontinuously changes from localization to diffusion upon introducing interactions. Integrable models form pillars of theoretical physics because they allow for full analytical understanding. Despite being rare, many realistic systems can be described by models that are close to integrable. Therefore, an important question is how small perturbations influence the behavior of solvable models. This is particularly true for many-body interacting quantum systems where no general theorems about their stability are known. Here, we show that no such theorem can exist by providing an explicit example of a one-dimensional many-body system in a quasiperiodic potential whose transport properties discontinuously change from localization to diffusion upon switching on interaction. This demonstrates an inherent instability of a possible many-body localization in a quasiperiodic potential at small interactions. We also show how the transport properties can be strongly modified by engineering potential at only a few lattice sites.
Preparation Technique and EMI Shielding Evaluation of Flexible Conductive Composite Fabrics Made by Single and Double Wrapped Yarns

Electronics products and communication equipment release electromagnetic (EM) waves in service. EM waves affect biological health and precision instrument accuracy. This study purposes to fabricate flexible conductive composite fabric which is made of complex yarn using metal (stainless steel, copper) fibers and PET filaments. Complex yarn is formed by a rotor twisting machine, at varying values of wrapped number (6.5-16 turns/cm) and lamination number (single-layer, double-layer). Results show that when the complex yarn was wrapped 16 turns/cm, volume resistivity reached 2.9 Ohm-cm and conductivity reaches 0.408 S/cm. Four layers of conductive composite plied with 0°/90°/ 0°/ 90° resulted in the optimum electromagnetic shielding effectiveness, up to 47.7 dB.
Characterisation of Physical, Spectral and Thermal Properties of Biofield treated Resorcinol

Resorcinol is widely used in manufacturing of several drugs and pharmaceutical products that are mainly used for topical ailments. The main objective of this study is to use an alternative strategy i.e., biofield treatment to alter the physical, spectral and thermal properties of resorcinol. The resorcinol sample was divided in two groups, which served as control and treated group. The treated group was given biofield treatment and both groups i.e., control and treated were analysed using X-ray diffraction (XRD), Fourier transform-infrared (FT-IR) spectroscopy, UV-Visible (UVVis) spectroscopy, Differential scanning calorimetry (DSC) and Thermogravimetric analysis (TGA). The results showed a significant decrease in crystallite size of treated sample i.e., 104.7 nm as compared to control (139.6 nm). The FTIR and UV-Vis spectra of treated sample did not show any change with respect to control. Besides, thermal analysis data showed 42% decrease in latent heat of fusion. The onset temperature of volatilization and temperature at which maximum volatilization happened was also decreased by 16% and 12.86%, respectively. The significant decrease in crystallite size may help to improve the spreadability and hence bioavailability of resorcinol in topical formulations. Also increase in volatilization temperature might increase the rate of reaction of resorcinol when used as intermediate. Hence, biofield treatment may alter the physical and thermal properties of resorcinol and make it more suitable for use in pharmaceutical industry.
Gradient-induced droplet motion over soft solids

Fluid droplets can be induced to move over rigid or flexible surfaces under external or body forces. We describe the effect of variations in material properties of a flexible substrate as a mechanism for motion. In this paper, we consider a droplet placed on a substrate with either a stiffness or surface energy gradient and consider its potential for motion via coupling to elastic deformations of the substrate. In order to clarify the role of contact angles and to obtain a tractable model, we consider a 2D droplet. The gradients in substrate material properties give rise to asymmetric solid deformation and to unequal contact angles, thereby producing a force on the droplet. We then use a dynamic viscoelastic model to predict the resulting dynamics of droplets. Numerical results quantifying the effect of the gradients establish that it is more feasible to induce droplet motion with a gradient in surface energy. The results show that the magnitude of elastic modulus gradient needed to induce droplet motion exceeds experimentally feasible limits in the production of soft solids and is therefore unlikely as a passive mechanism for cell motion. In both cases, of surface energy or elastic modulus, the threshold to initiate motion is achieved at lower mean values of the material properties.
New method to measure abrasion of motorcyclist protective clothing

Motorcyclists often suff er severe injuries in accidents, especially at high temperatures when wearing thinner garments. Producing adequate protective clothing for them is therefore of great importance. Nevertheless, typical test procedures for protective clothing often cannot represent a real accident situation and scientifi c literature about this topic is scarce. Thus, in our project, a simple, inexpensive and realistic test setup was created. Experiments revealed signifi cant diff erences between typical motorcycle protective clothing materials under examination, indicating that especially those produced from man-made fi bres can lead to burns and worse injuries of motorcyclists, while some relatively inexpensive materials showed surprisingly high abrasion resistance. More importantly, the test results partly diff er from those performed with one of the standard testing devices, implying the importance of future tests to compare diff erent testing procedures with the results of real accidents.
Gender differences in social anxiety disorder.

OBJECTIVE Despite the ample literature on gender differences in anxiety and mood disorders, gender differences in social anxiety disorder (SAD) have received little empirical attention. The aim of the present study is to examine gender differences in 12-months prevalence, patterns of comorbidity, clinical presentation, subjective distress and functional impairment, age of onset, and treatment seeking, and discuss their clinical implications. METHOD We used data from the National Comorbidity Survey-Replication (NCS-R; n = 652, 63.3% women) to examine gender differences. RESULTS Main findings highlighted that compared with men, women are more likely to have SAD, to have a more severe clinical presentation of the disorder and to have greater subjective distress. Women are more likely than men to have comorbid specific phobia, generalized anxiety disorder and posttraumatic stress disorder, whereas men are more likely to have comorbid substance abuse disorders and conduct disorder. CONCLUSIONS Greater SAD prevalence and severity among women can have implications for assessment (e.g., potentially setting gender-specific cutoffs) and treatment (e.g., guiding exposures) of SAD.
PHY-Tree: Physical Layer Tree-Based RFID Identification

Tree-based RFID identification adopts a binary-tree structure to collect IDs of an unknown set. Tag IDs locate at the leaf nodes and the reader queries through intermediate tree nodes and converges to these IDs using feedback from tag responses. Existing works cannot function well under the scenario of non-uniform ID distribution as they ignore those ID distribution information hidden in the physical-layer signal of colliding tags. Different from them, we introduce PHY-Tree, a novel tree-based scheme that collects two types of information regarding ID distribution from every encountered colliding signal. First, we can detect if all colliding tags send the same bit content at each bit index by looking into inherent temporal features of the tag modulation schemes. If such resonant states are detected, either left or right branch of a certain sub-tree can be trimmed horizontally. Second, we estimate the number of colliding tags in a slot by computing a related metric defined over the signal’s constellation map, based on which nodes in the same layers of a certain sub-tree can be skipped vertically. We thus call the two types of information as horizontal and vertical info. Evaluations from both experiments and simulations demonstrate that PHY-Tree outperforms the state-of-the-art schemes by at least $1.79\times $ .
Mobile versus headworn augmented reality: How visions of the future shape, contest, and stabilize an emerging technology

This study examines the development of augmented reality (AR) technologies, utilizing theories like social construction of technology (SCOT) and from the sociology of futures literature. While some have criticized SCOT for over-privileging certain social groups, drawing rigid boundaries between groups, and overlooking the role of power between them, this study addresses those critiques by conducting an ongoing mapping of the discussion surrounding AR. Through in-depth interviews and participant observation analyzing the discourse and development taking place at industry, standards, and academic conferences, this study explores a contestation emerging between two coalitions (mobile vs headworn) and how they are using future visions to negotiate the material design of the technology, the policies surrounding the technology, and stakeholder perceptions of the technology. The tactics these coalitions engage in reveal new components of stabilization, specifically deploying a “pre-stabilized ideal” to frame technological development. This case represents an instance where applying SCOT to an emerging technology helps us understand the technology itself while also building on and extending the SCOT model.
Discrete-time robust LMI pole placement for magnetic levitation

This paper studies the robust discrete-time pole-placement state feedback controller design in the LMI framework. The inner ellipse is used to approximate originally non-convex discrete-time closed loop pole region respective to the prescribed damping factor. The resulting LMI conditions use parameter dependent Lyapunov function to reduce conservatism in robust controller design. Contribution of this paper is in the application of this procedure on the case study — unstable Magnetic Levitation System, analysis of the results and comparison with standard robust stabilizing controller design.