Miracle-dz/UniFAR-FTUs huggingface dataset:
Application of active thermography in study of the rotors dynamics

The article presents the infrared measurement techniques for analyzing and monitoring the dynamic state of the structure using advanced thermal imaging techniques. The article present an overview of the infrared measurement techniques and algorithms proposed research design based on the selected infrared measurement techniques. The article presents the results of a series of studies on the possibility of applying the vibrothermography methods in SHM systems. In particular it focuses on the analysis of the possibility of studying the dynamics of the rotor and the detection of its failures during operation. The results of vibrothermography studies of impeller made of plastic are presented. The results of studies based on algorithms developed by the authors. The article also presents the concept of the use of thermal imaging research in fault detection and monitoring of the dynamic state of real objects.
Study of wear losses and frictional heat dissipation during dry sliding wear of ilmenite reinforced Al-alloy composite

In this investigation, ilmenite mineral reinforced Al–Si alloy matrix composite (AMC) has been developed. The wear behavior of the developed composites has been studied for their end application as break drum material to replace cast iron used in automobile industries. Ilmenite is one of the major sea beach mineral. AMC has been prepared through a low-cost stir-casting method in which 1 wt. % graphite (Gr)/tin (Sn) as a solid lubricant has been added during the fabrication of composites itself. The optical micrographs of AMC revealed uniform distribution of ilmenite particles throughout the matrix. The wear rate of the base LM30 alloy containing 17% Si and the developed composites has been studied at different normal loads at a constant velocity of 1.6 m.s−1. Optimized data revealed a significant wear rate reduction due to solid lubrication provided by Gr/Sn (∼32%). The wear rate of composites has been compared with traditional cast iron used in brake drums under similar experimental conditions. Composites exhibit nearly identical wear behavior throughout the test. The microstructural study of wear track and debris revealed that Sn and Gr used as solid lubricants played a vital role in reducing the wear loss of the prepared composites. A theoretical study of frictional heat generated during dry sliding and its dissipation has been done to establish the operative wear mechanism in the composites.
Speed sensorless control of a BL-IM based on an adaptive nonsingular terminal sliding mode observer

ABSTRACT Aiming at the speed detection accuracy of the optical encoder in a bearingless induction motor (BL-IM) affected by external environment and other factors, a speed sensorless control strategy based on an adaptive nonsingular terminal sliding mode observer (ANTSMO) is proposed. Firstly, a second-order nonsingular terminal sliding mode surface is constructed based on the stator current error. According to the designed sliding mode control law, the stator current and its common coupling term with the rotor flux are observed. Secondly, in order to avoid the bias effect caused by the pure integrator, the model reference adaptive system (MRAS) identification structure is used to realise the speed closed-loop observation . The adaptive sliding mode gain is designed by the identified speed. The stability and convergence of the observation system are proved through the Lyapunov theorem and Popov superstability theory. Finally, simulation analysis and experimental verification of the proposed strategy are carried out on MATLAB/Simulink and the test prototype. The results show that the proposed strategy not only can effectively reduce the observation chattering, and the speed can be accurately estimated under no-load, sudden load and variable speed conditions, but also the BL-IM can achieve good suspension characteristic of the motor rotor.
On Robust and Adaptive Fidelity Selection for Human-in-the-loop Queues

We consider a human agent servicing a queue of homogeneous tasks. The agent can service a task with normal or high fidelity level, where fidelity refers to the degree of exactness and precision while servicing the task. We assume the parameters of the human’s service time distribution depend on the selected fidelity level and her cognitive state and are assumed to be unknown a priori. These parameters are learned online through Bayesian parameter estimation. We formulate a robust adaptive semi-Markov decision process (SMDP) to solve our optimal fidelity selection problem and extend the results on convergence of robust-adaptive Markov decision processes (MDP) to robust-adaptive SMDPs.
Relationship between 18F-FDG PET/CT Semi-Quantitative Parameters and International Association for the Study of Lung Cancer, American Thoracic Society/European Respiratory Society Classification in Lung Adenocarcinomas

Objective To investigate the relationship between 18F-FDG PET/CT semi-quantitative parameters and the International Association for the Study of Lung Cancer, American Thoracic Society/European Respiratory Society (IASLC/ATS/ERS) histopathologic classification, including histological subtypes, proliferation activity, and somatic mutations. Materials and Methods This retrospective study included 419 patients (150 males, 269 females; median age, 59.0 years; age range, 23.0–84.0 years) who had undergone surgical removal of stage IA–IIIA lung adenocarcinoma and had preoperative PET/CT data of lung tumors. The maximum standardized uptake values (SUVmax), background-subtracted volume (BSV), and background-subtracted lesion activity (BSL) derived from PET/CT were measured. The IASLC/ATS/ERS subtypes, Ki67 score, and epidermal growth factor/anaplastic lymphoma kinase (EGFR/ALK) mutation status were evaluated. The PET/CT semi-quantitative parameters were compared between the tumor subtypes using the Mann–Whitney U test or the Kruskal–Wallis test. The optimum cutoff values of the PET/CT semi-quantitative parameters for distinguishing the IASLC/ATS/ERS subtypes were calculated using receiver operating characteristic curve analysis. The correlation between the PET/CT semi-quantitative parameters and pathological parameters was analyzed using Spearman’s correlation. Statistical significance was set at p < 0.05. Results SUVmax, BSV, and BSL values were significantly higher in invasive adenocarcinoma (IA) than in minimally IA (MIA), and the values were higher in MIA than in adenocarcinoma in situ (AIS) (all p < 0.05). Remarkably, an SUVmax of 0.90 and a BSL of 3.62 were shown to be the optimal cutoff values for differentiating MIA from AIS, manifesting as pure ground-glass nodules with 100% sensitivity and specificity. Metabolic-volumetric parameters (BSV and BSL) were better potential independent factors than metabolic parameters (SUVmax) in differentiating growth patterns. SUVmax and BSL, rather than BSV, were strongly or moderately correlated with Ki67 in most subtypes, except for the micropapillary and solid predominant groups. PET/CT parameters were not correlated with EGFR/ALK mutation status. Conclusion As noninvasive surrogates, preoperative PET/CT semi-quantitative parameters could imply IASLC/ATS/ERS subtypes and Ki67 index and thus may contribute to improved management of precise surgery and postoperative adjuvant therapy.
Surgical removal of a compressive thoracic epidural vascular malformation in a patient with Klippel-Trénaunay syndrome: illustrative case

BACKGROUND Klippel-Trénaunay syndrome (KTS) is a combined capillary-lymphatic-venous malformation disorder traditionally associated with high surgical morbidity. Although rare, pathologic involvement of the spinal cord has been reported in the literature. However, the safety of surgical intervention remains unclear. We report a case of successful decompression of a thoracic epidural lesion in an individual with KTS who presented with spastic paraparesis. OBSERVATIONS The patient is a 38-year-old male, diagnosed with KTS as an infant, who presented with spastic paraparesis secondary to a thoracic epidural lesion. He underwent laminectomies and resection of the lesion with subsequent improvement of his symptoms and without significant postoperative morbidity. Histopathology confirmed the lesion to be a benign vascular malformation. LESSONS Currently, the literature regarding management of symptomatic vascular lesions in individuals with KTS supports nonoperative management, due to the increased risk of operative morbidity associated with this syndrome. This case presents evidence for safe and appropriate surgical management of a thoracic epidural vascular malformation in a patient with KTS in the setting of progressive neurological decline, establishing a role for neurosurgical intervention in this high-risk population when no conservative management portends further neurological deterioration.
Involvement of Rab25 Biomarker in Pathogenesis of Ovarian Cancer

Ovarian tumor is the third leading common gynecologic tumor and the common leading cause of death in gynecological cancers to the entire global and studies suggested that Rab25 is insinuated in the pathological process of ovarian cancer. Despite the availability of biomarkers for ovarian cancer detection, there are no specific markers that enable the early detection of ovarian cancers which open an avenue to Rab25 to be review. A number of genes and proteins have been reported to be involved in the pathogenesis of ovarian cancers. Of them, Ras-related protein 25 (Rab25) is suggested to be linked to increased risk of ovarian cancer development. Rab25, an intracellular transport protein, belongs to the Rab small GTPase family and regulates various aspects of internalized membrane protein recycling and trafficking occurring inside the cells to the cell membrane. It is known to be involved in cell proliferation, and prevents apoptosis and invasion in ovarian cancer. Rab25 is highly found in epithelial cells and the expression of Rab25 proteins has been implicated to be ubiquitous. Upregulation of Rab25 has also been strongly shown to intensify the cancer cell proliferation and to prevent apoptosis in vitro and in vivo . Here in we will review the past and current studies implicating Rab 25 as potential biomarker in ovarian cancer in addition to pathogenesis
STL file format MeshIO class for ITK

This document describes the implementation of an ITK class to support the reading and writing of Meshes in STL file format. The Meshes are assumed to contain 2D manifolds embedded in a 3D space. In practice, it would be desirable to use this class mostly to read and write QuadEdgeMeshes.This paper is accompanied with the source code, input data, parameters and output data that the authors used for validating the algorithm described in this paper. This adheres to the fundamental principle that scientific publications must facilitate reproducibility of the reported results.
Current ideas about molecular genetic subtypes of ovarian cancer: a personalized approach and a new platform for further research

Highly malignant ovarian cancers are a histopathological diagnosis, but can be multiple diseases at the molecular level. Research aimed at identifying molecular genetic subtypes of ovarian cancer is being conducted to find an answer to the question: can different molecular subgroups influence the choice of treatment? One of the achievements of this direction is the recognition of the dualistic theory of the origin of ovarian carcinomas with their division into High-grade and Low-grade subtypes. However, the data of sequencing of the tumor genome suggest the existence of 6 subtypes of carcinoma, including two LG and four HG subtypes. Patients of subtype C1 are characterized by a high stromal response and have the lowest survival, tumors of C2 and C4 subtypes have a higher rate of intratumoral CD3 + cells, lower stroma gene expression and better survival than C1. The mesenchymal subtype C5 is widely represented by mesenchymal cells, characterized by overexpression of N-cadherins and P-cadherins, low expression of differentiation markers and lower survival than C2 and C4. The use of a consensus algorithm to determine the subtype allows the identification of only a minority of ovarian cancers (approximately 25%). In this regard, the practical significance of this classification still requires additional research, and today it is permissible to talk about the existence of only 2-3 reproducible subtypes. It is thought that it makes sense to randomize tumors into groups with altered expression of angiogenic genes and with overexpression of immune response genes, as in the angiogenic group there is a comparison of the advantage in survival (prescribing bevacizumab improves it, and in the immune group even increases bevacizumab). Molecular subtypes with poorer survival rates (proliferative and mesenchymal) also benefit most from bevacizumab treatment. The review focuses on some advances in understanding molecular, cellular, and genetic changes related to ovarian cancers with the results achieved so far in describing molecular subtypes of ovarian cancer. The available information is the basis for planning further research.
Heart transplantation in a patient with complex heart lung disease: a case report

Heart disease is often accompanied by lung disease as they share the same risk factors. Heart or lung transplantation is regarded as a definitive treatment for the end-stage disease of each, while the expected median survival for lung transplantation is far shorter than heart transplantation. We present a case of refractory heart failure along with severe obstructive and restrictive lung disease that showed dramatic improvement in pulmonary function after single heart transplantation.
Tamarind seed polysaccharide (TSP) uses in ophthalmic drug delivery

author: matheuscastro123@hotmail.com Abstract At present, ophthalmic drug delivery remains a major challenge, given the eye's protective structure and susceptibility to irritation, resulting in poor patient adherence. In order to overcome these constraints, new formulations are continually being developed. The inclusion of Galactoxyloglucan (Tamarind seed polysaccharide (TSP) in such formulations, a natural substance extracted from the seeds of Tamarindus indica , has shown great potential due to its physicochemical properties, high biocompatibility and safety profile. Such properties, have led to its use in formulations for the treatment of dry eye disease, glaucoma, and bacterial keratitis, as well as in dilating eye drops used in eye examinations. In this article, we highlight the most recent TSP-based ophthalmologic formulations, which indicate that this polymer is a strong candidate to reduce adverse effects, improve patient tolerability and rufloxacin administration resulted in slightly higher intraocular drug levels than rufloxacin alone, as shown by the values observed in uninfected (4.62 g/ml; P 0.01), P. aeruginosa -infected (5.63 g/ml; P 0.01), and S. aureus-infected (6.91 g/ml; P 0.001) eyes. In the cornea, TSP-rufloxacin was slightly more effective than rufloxacin alone in regulating P. aeruginosa bacterial proliferation. With regard to S. aureus, TSP-rufloxacin administration resulted in a significant drop in corneal bacteria relative to both rufloxacin-treated and ofloxacin-treated eyes (P 0.05). A further study was conducted evaluating different formulations of rufloxacin (RUF) with TSP, namely two pH 7.2 suspensions of non-salified rufloxacin base, one of which was thickened with TSP; two pH 7.2 solutions of RUF obtained using hydroxypropyl- β cyclodextrin (CD), one with TSP; and two pH 5.0 solutions of rufloxacin hydrochloride (RUF-HCl), one containing TSP 33 . In this study, the suspension containing TSP showed twice the concentration in aqueous humor compared to S-RUF (187.88 vs 67.63 min µg/mL), given the viscosity potential of the polysaccharide. Additionally, pH levels were also shown to influence drug concentration, since the concentration was higher at pH 7.2 when compared to the same formulation at pH 5.0. Rufloxacin solubilization in HP- β -CD (pH 7.2) irrespective of whether or not it contained TSP, showed, poor performance in the final concentration. This could be explained by the fact that the drug interacted strongly with the cyclodextrins and that
The COVID-19 Pandemic, a Risk Management Approach

The coronavirus disease-2019 pandemic, one of many global threats to human health, provides an opportunity to analyze how to detect, minimize, and even prevent the spread of future viral zoonotic agents with pandemic potential. Such analysis can utilize existing risk assessment techniques that seek formally to define the hazard, assess the health risk, characterize the health threat, and estimate the probability of occurrence. © 2021 by Turkish Neurological Society.
Blood pressure screening in midlife aids in prediction of dementia later in life

Background There is substantial evidence that midlife hypertension is a risk factor for late life dementia. Our aim was to investigate if even high blood pressure at a single timepoint in midlife can predict an increased risk for all-cause dementia, Alzheimer’s disease (AD), or vascular dementia (VaD) later in life. Methods The community-based study population comprised 30,102 dementia-free individuals from the Westmannia Cardiovascular Risk Factors Study. The participants were aged 40 or 50 years when the health examination took place in 1990–2000. Diagnose registers from both hospitals and primary healthcare centers were used to identify individuals who after inclusion to the study developed dementia. The association between midlife high blood pressure (defined as systolic blood pressure >140 and/or diastolic blood pressure >90 mmHg) at a single timepoint and dementia was adjusted for age, gender, body mass index (BMI), fasting blood glucose, education, smoking, and physical activity level. Multivariate binary cox regression analyses were used. Results After a mean follow-up time of 24 years resulting in 662,244 person/years, 761 (2.5%) individuals had been diagnosed with dementia. Midlife high blood pressure at a single timepoint predicted all-cause dementia (hazard ratio [HR]: 1.22, 95% confidence interval [CI]: 1.02–1.45) and VaD (HR: 2.10, 95% CI: 1.47–3.00) but not AD (HR: 1.06, 95% CI: 0.81–1.38). Conclusion This study suggests that even midlife high blood pressure at a single timepoint predicts all-cause dementia and more than doubles the risk for VaD later in life independently of established confounders. Even though there was no such association with AD, this strengthens the importance of midlife health examinations in order to identify individuals with hypertension and initiate treatment.
Comparison of MR Perfusion and FDG-PET Brain Studies in Patients With Alzheimer’s Disease and Amnestic Mild Cognitive Impairment

Background: The aim of this study was to compare Dynamic Susceptibility Contrast Enhanced MRI (DSC-MRI) and PET with flurodeoxyglucose (FDG-PET) in the diagnosis of Alzheimer’s Disease (AD) and amnestic Mild Cognitive Impairment (aMCI). Methods: Age and sex matched 27 patients with AD, 39 with aMCI and 16 controls underwent brain DSC-MRI followed by FDG-PET. Values of relative Cerebral Blood Volume (rCBV) and rCBV z-scores from frontal, temporal, parietal and PCG cortices were correlated with the rate of glucose metabolism from PET. Sensitivity, specificity and accuracy of DSC-MRI and FDG-PET in the diagnosis of AD and aMCI were assessed and compared.Results: In AD hypoperfusion was found within all examined locations, while in aMCI in both parietal and temporal cortices and left PCG. FDG-PET showed the greatest hypometabolism in parietal, temporal and left PCG regions in both AD and aMCI. FDG-PET was more accurate in distinguishing aMCI from controls than DSC-MRI. In AD and combined group (AD + aMCI ) there were numerous correlations between DSC-MRI and FDG-PET results. Conclusions: In AD the patterns of hypoperfusion and glucose hypometabolism are similar thus DSC-MRI may be a competitive method to FDG-PET. FDG-PET is a more accurate method in the diagnosis of aMCI.
Verification of the image processing system in real conditions

Autonomous Vessel with an Air Look, is a research project that aims to develop autonomous navigation of ships. The system uses three independent sources of information i.e. radar, AIS ? Automatic Identification System and cameras, which can be located on a drone or ship? s superstructure. The article presents the results of testing of an image processing system in real conditions on m/f Wolin.
Design of a Food Recommendation System using ADNet algorithm on a Hybrid Data Mining Process

Hybrid data mining processes are employed in recent days on several applications to achieve a better prediction and classification rate along with customer satisfaction. Hybrid data mining processes are the combination of different form of data considered for a neural network decision. In some cases, the different form of data represents image along with numerical data. In the proposed work, a food recommendation system is developed with respect to the flavour taste of the customer and considering the review comments of previous customers. The suggestions given by the users are taken into account as a feedback layer in the neural network for fine tuning the accuracy of the prediction process. The architectural design of the proposed model is employed with an ADNet (Adaptively Dense Convolutional Neural Network) algorithm to enable the usage of low range features in an efficient way. To verify the performance of the developed model, a pizza flavour recommender dataset is employed in the work for analysis. The experimental work analysis indicates that the ADNet algorithm works in a better way on a hybrid data analysis than the traditional DenseNet and ResNet algorithms.
Knowledge, Attitude and Eco-Efficiency Urban Environment in the Inhabitants of the District of Chilca – Peru

The attitude is based on the self-concept or degree to which an individual perceives an integral part of the natural environment and situations with which it is related. Knowledge includes obtaining, analyzing and systematizing an individual from their natural environment, which is an important step for personal understanding and development. The objective of the research was to analyze and relate the environmental knowledge and attitude of 382 people towards urban-sustainable eco-efficiency in the inhabitants of the Chilca district. Two questionnaires [knowledge and attitude] of 23 questions were designed, the interview was personal to 382 people between the ages of 20 and 50 years. The questionnaire presented 5 responses using the Likert scale, the relationship was corroborated by hiring Rho Spearman and t-student statistical hypotheses. Result: The Environmental Knowledge towards Eco-efficiency (267, 290 and 225 has an idea totally in agreement in air and soil, biological diversity and climate change, respectively). The Environmental Attitude towards Eco-efficiency (200, 192 and 191 have an idea that is totally in agreement in their cognitive, affective and conative aspects, respectively). The relationship between K. and A. presents a rho=0.47 being a good relationship, with con t-student=10.35 and α=2.2e-16; affirming that there is a relationship between the environmental attitude and environmental knowledge towards eco-efficiency. The inhabitants of Chilca affirm that knowledge and attitude are important and agree to mitigate, reduce and conserve biodiversity, air, soil and water, climate change from a cognitive, affective and conative perspective, forming an eco-efficient polymathic and environmental psychology for sustainable urban. Received: 3 October 2021 / Accepted: 26 November 2021 / Published: 3 January 2022