Miracle-dz/UniFAR-FTUs huggingface dataset:
Photon Emission from Hollow Ions Near Surfaces

Ions with multiple inner-shell vacancies frequently arise due to their interaction with different targets, such as (intense) light pulses, atoms, clusters or bulk material. They are formed, in addition, if highly charged ions approach surfaces and capture electrons at rather large distances. To explore the interaction of such hollow ions and their subsequent relaxation, photon spectra in different frequency regions have been measured and compared to calculations. To support these and related measurements, we here show within the framework of the Jena Atomic Calculator (Jac) how (additional) electrons in outer shells modify photon emission and lead to characteristic shifts in the observed spectra. Further, for highly charged Ar ions in KLm(m=1…8) configurations, we analyze the mean relaxation time for their stabilization into the different ground configurations. These examples demonstrate how a powerful and flexible toolbox such as Jac will be useful (and necessary) in order to model the photon and electron emission of ions as they occur not only near surfaces but also in astro-, atomic and plasma physics.
Bridging the Urban-Rural Broadband Connectivity Gap using 5G Enabled HAPs Communication Exploiting TVWS Spectrum

: As with previous generations of mobile cellular networks, rural regions are projected to face financial and technological challenges in deploying 5G services. At the time, researchers all around the world are investigating the feasibility of utilizing TV White Spaces (TVWS). TVWS is an underutilized/unused section of television spectrum that might be used as a low-cost alternative to typical licensed wired/wireless broadband networks, as well as to bridge the broadband service availability gap between rural and urban regions. A feasible alternative is to deliver TVWS services via High Altitude Platforms (HAPs) for many developed and developing nations to deliver broadband services to a large proportion of their rural and low-income populations. This article examines the advantages of utilizing TVWS spectrum from HAPs as well as the challenges connected with this type of communication architecture. This article examines the advantages of leveraging TVWS spectrum from HAPs as well as the challenges that come with this type of communication architecture. They distribute messages across a large region while monitoring and optimizing radio resource allocation, owing to their position in the sky and the centralized design of the communication system. The article assesses the performance of such a system using the IEEE 802.22 standard and the ITU-R P.452 free space path-loss model. Moreover, this article pointed out the main challenge of using TVWS spectrum from HAP system.
Biofouling and Mitigation Methods: A Review

Biofouling accumulates living organisms on surfaces in contact with the water and causes significant economic, structural, and microbial problems on ship hulls, piers, oil rigs, power plants, pipework, water treatment facilities as well as medical devices. In order to mitigate problems associated with biofouling, many toxic and non-toxic antifouling methods have been developed. Unfortunately, most of the methods used to control biofouling are either harmful to the environment or, in some cases, considered effective. Thus, antifouling research's main objective is to develop green, sustainable, viable, widely applicable, and environmentally friendly antifouling technology. In this review, chemical, physical, and biological mitigation methods to prevent biofilm formation employed in the past and present have been discussed along with the current literature. Chemical antifouling methods generally contain antifouling (AF) paints with biocides including copper, silver, thiocyanate, Copper powder, Irgarol 1051, Zinc pyrithione, and Tributyltin (TBT). The physical antifouling control methods employ physical force or surface modifications such as low drag, low adhesion, wettability (super hydrophobicity or super hydrophilicity), as well as microtextured structures that minimize microorganism adhesion and/or accumulation on contact surfaces, hindering the formation of biofouling. The use of nature-inspired antibiological and biomimetic surfaces like shark skin, whale skin, dolphin skin, and lotus leaves are promising for the effective control of biofouling and present opportunities for developing non-polluting technologies.
Effect of Eicosapentaenoic Acid on sFlt-1 and HIF-1α Expression Under Induced Hypoxia Conditions in Trophoblast Tumor Cell Line (JEG-3)

Background: Previous studies have shown the altered levels of long-chain polyunsaturated fatty acids (LCPUFAs) in pathological hypoxic conditions. Elevated soluble fms-like tyrosine kinase-1 (sFlt-1) expression in hypoxia plays an important role in the pathogenesis of placental as preeclampsia. Objectives: The eicosapentaenoic acid (EPA; 20:5, n-3) as LCPUFAs (omega-3) might attenuate sFlt-1 and hypoxia-inducible factor-1α (HIF-1α) expressions and secretions. Methods: JEG-3 cells were incubated with dimethyloxalylglycine (DMOG) and EPA. The SFlt-1 gene expression was determined using a real-time polymerase chain reaction. The protein secretion of sFlt-1 and HIF-1α were analyzed using Western blot. Results: The incubation of JEG-3 cells with DMOG significantly elevated messenger ribonucleic acid (mRNA) expression and protein secretion of sFlt-1 (P < 0.05); nevertheless, EPA decreased mRNA expression and protein secretion of sFlt-1 (P < 0.05). Moreover, EPA inhibited the effect of DMOG on sFlt-1 (P = 0.0361) gene expression and protein secretion and HIF-1α (P = 0.0241) protein secretion. Conclusions: The sFlt-1 expression decreased by n-3 fatty acids in trophoblast tumor cell line under induced hypoxia conditions. It seems that changes in sFlt-1 expression are mediated by the transcription factor HIF-1α.
Simulation of 1-D wave propagation by Meshless Lattice Boltzmann method based on Extended Boussinesq equations

ABSTRACT Various numerical methods for modeling wave propagation are presented in the literature. These models are specified by the inclusion of nonlinearity and dispersion. The nonlinear Shallow Water Equations (SWEs) and Boussinesq equations are two main sets for wave-based problems. Lattice Boltzmann Method (LBM) is a productive method for solving various CFD problems like issues in the field of free-surface flow problems, that is derived for SWEs in the literature and solved by various numerical methods. In the present study, the 1-D extended Boussinesq system of equations is used as the base equation. Then, this system of equation is converted to Lattice Boltzmann form for the first time. The meshless Element-Free Galerkin (EFG) form of the converted equation is derived and used as the numerical method for wave propagation problems to cover the discontinuous nature of the wave problems. The new orthogonal moving least approximations is defined for the EFG method to avoid singularity in the simulations. Various examples are simulated by the presented numerical model and compared with experimental and other numerical methods. As illustrated in detail in the text, there is high accuracy between the presented results with the experimental and numerical data.
Synthesis, Characterization of New di Schiff base Derivatives from Dapsone, Their Polymerization and Thermal study

Schiff bases were containing (-C=N-) functional group and found to be a versatile compound. In this study new three Schiff bases compounds were prepared in the presence of catalyst through condensation products of 4,4'-sulfonyldianiline with carbonyl compounds using microwave. These compounds characterized by using FTIR, H-NMR and Mass spectroscopy. Also, they were polymerized to produce poly ester and phenolic resin through condensation polymerization, their thermal stability was evaluate using (TGA and DSC) techniques, the result show that the polymers have decomposition temperature more than 150 C0 and also the results show that the weight residue more than 70%, and the phenolic resin was more stable than polyester.
Preference-Driven Classification Measure

Classification is one of the main problems of machine learning, and assessing the quality of classification is one of the most topical tasks, all the more difficult as it depends on many factors. Many different measures have been proposed to assess the quality of the classification, often depending on the application of a specific classifier. However, in most cases, these measures are focused on binary classification, and for the problem of many decision classes, they are significantly simplified. Due to the increasing scope of classification applications, there is a growing need to select a classifier appropriate to the situation, including more complex data sets with multiple decision classes. This paper aims to propose a new measure of classifier quality assessment (called the preference-driven measure, abbreviated p-d), regardless of the number of classes, with the possibility of establishing the relative importance of each class. Furthermore, we propose a solution in which the classifier’s assessment can be adapted to the analyzed problem using a vector of preferences. To visualize the operation of the proposed measure, we present it first on an example involving two decision classes and then test its operation on real, multi-class data sets. Additionally, in this case, we demonstrate how to adjust the assessment to the user’s preferences. The results obtained allow us to confirm that the use of a preference-driven measure indicates that other classifiers are better to use according to preferences, particularly as opposed to the classical measures of classification quality assessment.
Class-E Power Amplifier with Improved PAE Bandwidth Using Double CRLH TL Stub for Harmonic Tuning

SUMMARY This paper presents a class-E power ampliﬁer (PA) with a novel harmonic tuning circuit (HTC) based on composite right- / left-handed transmission lines (CRLH TLs). One of the issues of conventional harmon- ically tuned PAs is the limited PAE bandwidth. It is shown by simulation that class-E ampliﬁers have potential of maintaining high PAE over a wider frequency range than for example class-F ampliﬁers. To make full use of class-E ampliﬁers with the superior characteristics, an HTC using double CRLH TL stub structure is proposed. The HTC is not only compact but also enhances the inherently wide operation frequency range of class-E ampliﬁer. A 2-GHz 6W GaN-HEMT class-E PA using the proposed HTC demonstrated a PAE bandwidth ( ≥ 65%) of 380MHz with maximum drain e ﬃ ciency and PAE of 78.5% and 74.0%, respectively .
Interaktif Virtual Tur Melalui Media Elektronik: Kualitas Pelayanan, Kepuasan Wisatawan, Word of Mouth dan Niat Untuk Berkunjung Kembali

Starting with a walking tour which has the concept of traveling by walking around a destination to get to know the other side of the story which tourists rarely know, from museums, culinary delights, and other historical places. In early 2020, coronavirus hit the world. Indonesia implemented large-scale social restrictions (PSBB) that were imposed over the past few months, bringing tourism to a halt. On this situation, many walking tour organizers and tour guides use the latest innovation, namely interactive virtual tours. The purpose of this study is to investigate the role played by tour guides and service providers or interactive virtual tour organizers in providing services electronically which have an influence on the level of tourist satisfaction which is ultimately transmitted by word of mouth electronically and in the end they want for a revisit intention as visit in person. This study used a quantitative method with 210 respondents. The study used a Structural Equation Modeling (SEM) model using AMOS version 23.0 software.
The Direct Torque Control of Brushless DC Motor Based on the Hyper Space Vector

The direct torque control on brushless DC motor was a newly issue.However,there were two deficiency in existed scheme.Firstly,the stator flux-linkage reference was the function of rotor position;secondly,the variable voltage of turn-off phase made it difficult to calculate stator flux-linkage.These two deficiencies complicated the control system and the essential reason was the present of turn-off phase.For solved these problems,the turn-off phase was analyzed thoroughly and an conclusion was presented.The turn-off phase affected the stator flux-linkage,but had nothing to do with the torque.Then,the hyper space vector theory for brushless DC motor was brought forward.The turn-off phase voltage was put along the Z axis perpendicular to the abc plane.The voltage vector and stator flux-linkage vector moved in three dimensional space.The projection locus of stator flux-linkage was hexagon which were the integral of two conduction phase voltage.The turn-off voltage was ignored in realization system as its zero projection on the abc plane.The direct self-control was adopted,and the rotor position was unnecessary.The theory greatly simplified the system.The simulated and experimental results validated the theory.
Teledentistry in the Management of Patients with Dental and Temporomandibular Disorders

Telemedicine is a subunit of telehealth, and it uses telecommunication technology, video, digital images, and electronic medical records to allow the exchange of clinical information and images over remote distances for dental consultation, diagnosis, and treatment planning. Dental clinical practice requires face-to-face interaction with the patients, and therefore, during the COVID-19 pandemic, it has mostly been suspended. In this view, teledentistry offers the opportunity to continue dental practice, avoiding the face-to-face examination that put patients and healthcare professionals at infection risk. Teledentistry encompasses several subunits such as teleconsultation, telediagnosis, telemonitoring, and teletriage. To date, there are several experiences described in literature that suggest that teledentistry could be applied to support traditional care of different oral diseases. However, there are some issues that need to be addressed. Reimbursement concerns, costs, license regulations, limits in physical examinations, and expert equipment are principal issues that should be overcome in telemedicine and in teledentistry. In this narrative review, we provide an overview of the different teledentistry approaches in the care of patients with dental and temporomandibular disorders, as well as discussing the issues that need to be addressed to implement this approach in clinical practice.
Obesity Paradox and Surgical Evacuation for Chronic Subdural Hematoma

Background: Chronic subdural hematoma (cSDH) has a number of risk factors for recurrence, and some studies suggest obesity is one of them. Yet obesity has been shown to have a positive survival benefit in many diseases such as ischemic stroke, chronic obstructive pulmonary disease, percutaneous coronary intervention, and mechanical thrombectomy. Therefore, we sought to determine if obesity provided a mortality benefit in patients with cSDH undergoing burr hole drainage or craniotomy. Methods: We performed a retrospective database analysis using a multi-institutional (TriNetX) database looking at obese versus non-obese patients with cSDH undergoing surgical drainage. Our primary endpoint was mortality. Secondary endpoints included seizure, pulmonary embolism (PE), myocardial infarction (MI), cerebral infarction, deep vein thrombosis (DVT), tracheostomy, and percutaneous endoscopic gastrostomy (PEG). These were looked at to obtain a better idea of prognosis. Cohorts were propensity score-matched for confounders, using the greedy-nearest neighbor algorithm with a caliper of 0.1 pooled standard deviations. Kaplan-Meier survival curves were also developed, and hazard ratios were calculated. Chi-square analysis was performed on categorical variables. Results: A total of 1,849 patients were identified as obese with a drainage procedure, while 12,371 were identified as non-obese. Some 1,746 patients remained in each group after propensity score matching. Thirty-day survival rates were 88.08% in the obese vs. 83.82% in the non-obese cohorts, 90-day survival 85.15% vs. 79.35%, 365-day survival at 80.89% vs. 71.90%, and five-year survival at 64.75% vs. 54.84% (p < 0.0001). The risk difference was -8.02% (95% confidence interval, Cl -11.02, -5.021%); relative risk, RR 0.757, 95% Cl (0.67, 0.841); odds ratio, OR 0.676 (0.583, 0.783); p < 0.0001). Seizures, ventilator dependence, MI, cerebral infarction, tracheostomy, and PEG rates were all non-significant. Obese patients had a higher rate of PE (7.90% vs. 4.47%, p < 0.0001) and DVTs (12.37% vs. 10.02%, p = 0.0278). Conclusions: Obesity in patients with cSDH undergoing surgical evacuation is associated with decreased mortality but higher rates of DVT and PE.
Consideration of Critical Parameters for Improving the Efficiency of Concrete Structures Reinforced with FRP

Fibre-reinforced polymer materials (FRP) are increasingly used to reinforce structural elements. Due to this, it is possible to increase the load-bearing capacity of polymer, wooden, concrete, and metal structures. In this article, the authors collected all the crucial aspects that influence the behaviour of concrete elements reinforced with FRP. The main types of FRP, their characterization, and their impact on the load-carrying capacity of a composite structure are discussed. The most significant aspects, such as type, number of FRP layers including fibre orientation, type of matrix, reinforcement of concrete columns, preparation of a concrete surface, fire-resistance aspects, recommended conditions for the lamination process, FRP laying methods, and design aspects were considered. Attention and special emphasis were focused on the description of the current research results related to various types of concrete reinforced with FRP composites. To understand which aspects should be taken into account when designing concrete reinforcement with composite materials, the main guidelines are presented in tabular form.
Preparation and Properties of Thin-Film Composite Forward Osmosis Membranes Supported by Cellulose Triacetate Porous Substrate via a Nonsolvent-Thermally Induced Phase Separation Process

A porous substrate plays an important role in constructing a thin-film composite forward osmosis (TFC-FO) membrane. To date, the morphology and performance of TFC-FO membranes are greatly limited by porous substrates, which are commonly fabricated by non-solvent induced phase separation (NIPS) or thermally induced phase separation (TIPS) processes. Herein, a novel TFC-FO membrane has been successfully fabricated by using cellulose triacetate (CTA) porous substrates, which are prepared using a nonsolvent-thermally induced phase separation (N-TIPS) process. The pore structure, permeability, and mechanical properties of CTA porous substrate are carefully investigated via N-TIPS process (CTAN-TIPS). As compared with those via NIPS and TIPS processes, the CTAN-TIPS substrate shows a smooth surface and a cross section combining interconnected pores and finger-like macropores, resulting in the largest water flux and best mechanical property. After interfacial polymerization, the obtained TFC-FO membranes are characterized in terms of their morphology and intrinsic transport properties. It is found that the TFC-FO membrane supported by CTAN-TIPS substrate presents a thin polyamide film full of nodular and worm-like structure, which endows the FO membrane with high water permeability and selectivity. Moreover, the TFC-FO membrane supported by CTAN-TIPS substrate displays a low internal concentration polarization effect. This work proposes a new insight into preparing TFC-FO membrane with good overall performance.
The Influence of the Practiced Karate Style on the Dexterity and Strength of the Hand

Background: The need for a strong grip in ‘ground’ martial arts is undisputed, but it is not obvious in karate. It may be expected that in the case of advanced karate fighters where dynamic combat movements dominate, the level of speed skills will be high. However, does the karate style affect the Ditrich rod dexterity and the strength of the players’ handshake? Methods: 39 participants were analyzed, all of whom were elite karate fighters—21 in the Kyokushin style (age: 31.4 ± 6.3; body weight: 77.2 ± 18.2 kg) and 18 in the Shotokan style (age: 23.3 ± 11.8 years; body weight: 70.9 ± 14.2 kg). They performed the following: a test of reaction speed and dexterity with a Ditrich rod, and a hand grip strength test with a dynamometer. Results: The data shows that there is no difference in the Ditrich rod test for both the left and right hand among the analyzed Kyokushin and Shotokan fighters. Significant differences were recorded in the grip strength of both hands (p < 0.05). There is a positive correlation between the strength of the grip on both hands (r = 0.593; p < 0.05). Discussion: Kyokushin-style karate players have a higher grip strength than those trained in the Shotokan style. Perhaps this is due to differences in the preparation for fights. The analysis showed no statistical significance in the Ditrich rod test. It is probable that the level of dexterity in karate is independent of the training canon.
AAV-CRISPR/Cas9 Gene Editing Preserves Long-Term Vision in the P23H Rat Model of Autosomal Dominant Retinitis Pigmentosa

Retinitis pigmentosa (RP) consists of a group of inherited, retinal degenerative disorders and is characterized by progressive loss of rod photoreceptors and eventual degeneration of cones in advanced stages, resulting in vision loss or blindness. Gene therapy has been effective in treating autosomal recessive RP (arRP). However, limited options are available for patients with autosomal dominant RP (adRP). In vivo gene editing may be a therapeutic option to treat adRP. We previously rescued vision in neonatal adRP rats by the selective ablation of the Rhodopsin S334ter transgene following electroporation of a CRISPR/Cas9 vector. However, the translational feasibility and long-term safety and efficacy of ablation therapy is unclear. To this end, we show that AAV delivery of a CRISPR/Cas9 construct disrupted the Rhodopsin P23H transgene in postnatal rats, which rescued long-term vision and retinal morphology.
CONTRIBUIÇÕES ECONÔMICAS DA DEFESA NACIONAL PARA A ECONOMIA DO MAR: UMA ANÁLISE PARA MUNICÍPIOS BRASILEIROS

The ocean and its resources are increasingly recognized as indispensable to face the diverse challenges of the planet in the coming decades. In the face of new and old threats that permeate national and international security and due to the wealth present in the sea, more and more countries have sought to develop sectors related to sea activities, such as defense, resources and maritime transport. Regarding to the defense sector, in addition to providing security, the presence of military bases (MMBB) in coastal cities can have effects on the local economy generating income and employment, being these organizations, therefore, important actors for sustainable development. Thus, this article seeks to verify whether sea economic activities impact on economic growth and whether this impact is affected by the presence of MMBB. For this, a debate is developed that interrelates sea economy, defense economy and economic growth, as well as an econometric analysis for Brazilian municipalities for the years 2000 and 2010. The majors conclusions are: (i) at the same time that sea activities do not positively impact economic growth, (ii) increases in expenditures by the Navy mitigate the negative impact of these activities on growth.