Miracle-dz/UniFAR-FTUs huggingface dataset:
Free and forced bending vibrations of a thin plate in a perfect compressible fluid with energy dissipation taken into account

A refined statement of stationary dynamic acoustoelasticity problems of thin isotropic plates surrounded from both sides by acoustic media assumed to be perfect compressible fluids has been studed. The problem statement takes into account the energy dissipation in the material of the plate and fluid on the basis of the Kelvin‐Voigt hysteresis model. The refinement of the fluid behavior is based on the assumption that the pressure increment is proportional not only to volumetric strain, but also to the rate of its volumetric strain. This assumption allows us to obtain the generalized Helmholtz wave equation by introducing Skudrzyk's complex sound velocity into consideration to take account of the energy dissipation. The motion equations of the plate are based on the classical Kirchhoff‐Love model and are obtained in two versions. In the first version unsimplified three‐dimensional wave equations are used to determine the aerohydrodynamic load acting on a plate. The second version is based on simplifying the equations of fluid motion by the introduction of the well‐known hypothesis of plane reflection and emission of sound waves. On the basis of the derived equations, exact analytical solutions of two types of problems are obtained. The first type is related to the problem of free vibrations of a rectangular plate hinged around the contour when complex eigenfrequencies were defined. The second type is related to the problem of forced vibrations of the plate under the action of a flat mono‐harmonic incident sound wave when sound transmission loss, the stress‐strain state parameters of the plate as well as the laws of change in sound pressure in a fluid were determined. It is shown that correct and more meaningful solutions of acoustoelasticity problems of the considered class are possible only in case of describing the behavior of a fluid with unsimplified three‐dimensional wave equations with consideration of the energy dissipation.
Transcriptome profiling of the branchial arches reveals cell type composition and a conserved signature of neural crest cell invasion

The vertebrate branchial arches that give rise to structures of the head, neck, and heart form with very dynamic tissue growth and well-choreographed neural crest, ectoderm, and mesoderm cell dynamics. Although this morphogenesis has been studied by marker expression and fate-mapping, the mechanisms that control the collective migration and diversity of the neural crest and surrounding tissues remain unclear, in part due to the effects of averaging and need for cell isolation in conventional transcriptome analysis experiments of multiple cell populations. We used label free single cell RNA sequencing on 95,000 individual cells at 2 developmental stages encompassing formation of the first four chick branchial arches to measure the transcriptional states that define the cellular hierarchy and invasion signature of the migrating neural crest. The results confirmed basic features of cell type diversity and led to the discovery of many novel markers that discriminate between axial level and distal-to-proximal cell populations within the branchial arches and neural crest streams. We identified the transcriptional signature of the most invasive neural crest that is conserved within each branchial arch stream and elucidated a set of genes common to other cell invasion signatures in types in cancer, wound healing and development. These data robustly delineate molecularly distinct cell types within the branchial arches and identify important molecular transitions within the migrating neural crest during development.
The complete chloroplast genome sequence of Kadsura interior

Abstract The first complete chloroplast genome (cpDNA) sequence of Kadsura interior was determined from Illumina HiSeq pair-end sequencing data in this study. The cpDNA is 153,201 bp in length, contains a large single-copy region (LSC) of 85,774 bp and a small single-copy region (SSC) of 18,077 bp, which were separated by a pair of inverted repeats (IR) regions of 24,673 bp each. The genome contains 129 genes, including 85 protein-coding genes, 8 ribosomal RNA genes, and 37 transfer RNA genes. The overall GC content of the whole genome is 39.6%, . The further phylogenomic analysis showed that K. interior and Kadsura coccinea clustered in a clade in Schisandraceae family.
Simulation of a Machine Learning Based Controller for a Fixed-Wing UAV with Distributed Sensors

Recent research suggests that the information obtained from arrays of sensors distributed on the wing of a ﬁxed-wing small unmanned aerial vehicle (UAV) can provide information not available to conventional sensor suites. These arrays of sensors are capable of sensing the ﬂow around the aircraft and it has been indicated that they could be a potential tool to improve ﬂight control and overall ﬂight performance. However, more work needs to be carried out to fully exploit the potential of these sensors for ﬂight control. This work presents a 3 degrees-of-freedom longitudinal ﬂight dynamics and control simulation model of a small ﬁxed-wing UAV. Experimental readings of an array of pressure and strain sensors distributed across the wing were integrated in the model. This study investigated the feasibility of using machine learning to control airspeed of the UAV using the readings from the sensing array, and looked into the sensor layout and its eﬀect on the performance of the controller. It was found that an artiﬁcial neural network was able to learn to mimic a conventional airspeed controller using only distributed sensor signals, but showed better performance for controlling changes in airspeed for a constant altitude than holding airspeed during changes in altitude. The neural network could control airspeed using either pressure or strain sensor information, but having both improved robustness to increased levels of turbulence. Results showed that some strain sensors and many pressure sensors signals were not necessary to achieve good controller performance, but that the pressure sensors near the leading edge of the wing were required. Future work will focus on replacing other elements of the ﬂight control system with machine learning elements and investigate the use of reinforcement learning in place of supervised learning.
Every (Insta)Gram counts? Applying cultivation theory to explore the effects of Instagram on young users’ body image.

Recent research suggests that social networks have replaced traditional media as the main channel by which beauty ideals are conveyed—often resulting in body dissatisfaction and reduced self-esteem among users. While social comparison theory provides an empirically sound approach to these effects, we argue that additional insight may be offered by cultivation theory and its structured exploration of cognitive, attitudinal, and behavioral outcome variables. Thus, the present study scrutinizes the social network Instagram as a potential cultivation system for young adults’ body image. Recruiting 228 participants aged 18 to 34 years, we systematically explore three orders of cultivation, i.e., changes in weight-related knowledge, attitudes, and selfreported dietary restraint. As we differentiate between Instagram use quantity and quality, we observe that mere usage time cannot predict the assumed outcomes; instead, only participants’ tendency to browse Instagram’s public content emerges as a relevant predictor, connecting to biased views on the physical appearance of strangers, as well as more disordered eating behavior. Considering the fact that Instagram use relates more to other-focused than to self-focused perceptions in our study, we argue that cultivation theory can indeed complement social comparison theory in the current understanding of media-transmitted body images. (195 words) Significance statement: This paper lends both a theoretical foundation as well as empirical support to the argument that highly-visual social media constitute a meaningful cultivation system for body-related attitudes and behaviors among young adults. Our research illustrates how the frequent exposure to the virtual self-presentation of others may affect the way people look at strangers’ bodies or indulge in disordered eating—even if their own body esteem remains intact.
A Novel Three-Level CLLC Resonant DC–DC Converter for Bidirectional EV Charger in DC Microgrids

The concept of vehicle-to-grid has received considerable attentions over the past decade. Electric vehicle (EV), a common load of dc microgrids, can serve as distributed energy storage system to improve the reliability and stability of the dc microgrid, support integration of renewable energy source, and improve the overall system efficiency. In order to achieve bidirectional power transmission between the dc microgrid and EV, this article proposes a novel three-level CLLC resonant converter for off-board EV charger. By adding resonant CLLC components and by combining the working modes of the two three-level full bridges, the proposed converter adapts to the wide voltage range of EV, from 200 to 700 V. An equivalent circuit model with first harmonic approximation approach is established to analyze the frequency characteristics of the resonant converter. Moreover, an algorithm of working mode selection is proposed on the principle of minimum transformer RMS current. Finally, a 3.5 kW hardware prototype was built to verify the feasibility and the advantage of the three-level CLLC resonant converter. The efficiency of the proposed converter changes little over a wide output voltage range, and the flying capacitor voltages of the proposed converter are balanced well.
The Unexploited Potential of Nutrient Analysis in Potato Tissues at the Onset of Tuberization for Tuber Yield Prediction

Nutrient analysis of potato leaves in early growth is not sufficient for a reliable prediction of tuber yield. This hypothesis was verified based on a field experiment conducted during 2006–2008. The experimental factors were: nitrogen (N) rates (60, 120 kg ha−1), fertilizers (Urea, Urea + inhibitor—NBPT ([N-(n-butyl) thiophosphoric triamide]), and sulfur rates (0, 50 kg ha−1). Plant material for nutrient determination (N, P, K, Mg, Ca, Fe, Mn, Zn, Cu), which included leaves, stems, and stolons + roots (R+S), was sampled at BBCH 39/40. The marketable tuber yield (MTY) was in the ranges of 43–75, 44–70, and 24–38 t ha−1, in 2006, 2007, and 2008, respectively. The MTY and contents of N, Zn, and Cu, irrespective of the potato tissue, showed the same seasonal pattern, reaching the lowest values in the dry 2008. The N content in stems was the best tuber yield predictor. A shortage of K in stems and Mg and Cu in R+S, due to the opposite effect of Ca, reduced the N content. An N:Ca ratio in stems greater than 10:1 resulted in yield decrease. A reliable indication of nutrients limiting the tuber yield at the onset of potato tuberization requires data on the nutrient status in both leaves and stems.
The measurement and improvement of fitness post stroke

Background. Cardiorespiratory fitness is low after stroke. Improving fitness has the potential to improve function and reduce secondary cardiovascular events. Objective. This review with meta-analysis aims to identify characteristics and determine the effectiveness of interventions to improve cardiorespiratory fitness after stroke. Methods. A systematic search and review with meta-analysis was undertaken. Key inclusion criteria were the following: peer-reviewed articles published in English, adult stroke survivors, an intervention with the potential to improve cardiorespiratory fitness, and peak oxygen consumption (VO 2peak ) assessed preintervention and postintervention via a progressive aerobic exercise test. Results. From 3209 citations identified, 28 studies were included, reporting results for 920 participants. Studies typically included chronic, ambulant participants with mild to moderate deficits; used an aerobic or mixed (with an aerobic component) intervention; and prescribed 3 sessions per week for 30 to 60 minutes per session at a given intensity. Baseline VO 2peak values were low (8-23 mL/kg/min). Meta-analysis of the 12 randomized controlled trials demonstrated overall improvements in VO 2peak of 2.27 (95% confidence interval = 1.58, 2.95) mL/kg/min postintervention. A similar 10% to 15% improvement occurred with both aerobic and mixed interventions and in shorter (≤3 months) and longer (>3 months) length programs. Only 1 study calculated total dose received and only 1 included long-term follow-up. Conclusions. The results demonstrate that interventions with an aerobic component can improve cardiorespiratory fitness poststroke. Further investigation is required to determine effectiveness in those with greater impairment and comorbidities, optimal timing and dose of intervention, whether improvements can be maintained in the longer term, and whether improved fitness results in better function and reduced risk of subsequent cardiovascular events.
Density Functional Calculations on the Molecular, Electronic Structures of Metal-Free, N,N'-Dideuterio and Magnesium Tetra-3,4-Pyridino-Porphyrazines

A theoretical calculation of the fully optimized geometries and electronic structures of the metal-free Tetra-2,3-Pyridino-Porphyrazine (TPdPzH2 * ), N,N'-Dideuterio (TPdPzD2 * ), and Magnesium (TPdPzMg * ) tetra-3,4-pyridino-porphyrazine has been conducted with the density functional B3LYP level using the 6-31G(d) basis set. A comparison among the different Phthalocyanine (Pc) derivatives, including Tetra-2,3Pyridino-Porphyrazine (TPdPzH2) compounds, for the geometry, molecular orbital, and atomic charge was made. The substitution effect of the N atoms and the isotopic effect of D atoms on the properties of these compounds were discussed. The farther the heterocyclic N atoms in the benzo rings from 16-membered ring are, the smaller it influence the size of the central hole, the bond lengths and bond angles of 16-membered ring, the HOMO-LUMO gaps, and the atomic charges on the core Pz fragment. In other words, the properties of TPdPz * compounds are closer to Pc than TPdPz. With the order of H2Pc
The relationship between pneumonia and Glasgow coma scale assessment on acute stroke patients

Pneumonia is one of the most frequent medical complications of a stroke. Despite the well-documented association of a stroke associated infections with increased mortality and worse long-term outcome, on the other hand, the limited data available on independent predictors of pneumonia in acute stroke patients in an emergency unit. To determine the independentrelationship between pneumonia and Glasgow Coma Scale assessment on acute stroke patients. The cohort retrospective study observed 55 acute stroke patients who stayed in intensive care unit Adam Malik General Hospital from January until August 2017. Pneumonia was more frequent in patients with Ischemic stroke (OR 5.40; 95% CI: 1.28 – 6.40, p=0.003), higher National Institute of Health Stroke Scale (NIHSS) (p=0.014) and lower Glasgow Coma Scale (p=0.0001). Analysis multivariate logistic regression identified NIHSS as an independent of predictors of pneumonia (95% CI : 1.047 – 1.326, p=0.001). Pneumonia was associated with severity and type of stroke and length of hospital stay. The severity of the deficits evaluated by the NIHSS was shown to be the only independent risk factor for pneumonia in acute stroke patients.
Antifungal activity of rice associated phyllosphere (RAP) communities against brown spot of rice (Bipolaris oryzae)

The brown spot of rice is a devastating disease in rice production. It is caused by the pathogen Bipolaris oryzae which reduces many quality and quantity impacts on the rice crop. It has been known well that some phylloplane bacterial antagonists are antagonistic to some foliar diseases. The research work was carried out with the aim to study the antagonistic property of phylloplane antagonists of rice against B. oryzae. Twenty phylloplane bacterial antagonists were isolated and characterized. The bacterial antagonists Bacillus subitilis and Pseudomonas fluorescence were identified by the biochemical tests. Among the bacterial isolates, the isolate PI (Bs) 5 recorded 52.96 per cent inhibition of the mycelial growth of the pathogen over control. It was followed by PI (Pf) 1, PI (Pf) 2 and PI (Bs) 8 which recorded 52.59, 52.22 and 49.26 respectively. The minimum inhibition was exerted by the isolate PI (Bs) 9 followed by PI (Pf) 17 which recorded 19.26 and 19.63 per cent inhibition respectively.
An Investigation on the Interfacial Adhesion between Amine Functionalized Luffa Fiber and Epoxy Resin and Its Effect on Thermal and Mechanical Properties of Their Composites

ABSTRACT The objective of this work is to develop a natural fiber-reinforced epoxy composite with enhanced compatibility between resin and the fiber, achieved by amino silane treatment of Luffa fiber. Amine modification on the surface of the Luffa fiber is confirmed by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Composites with different volume fractions (2%, 4%, 6%, and 8%) of amine functionalized/un-functionalized Luffa fiber and epoxy resin are fabricated. The functionalized/un-functionalized Luffa epoxy composites are subjected to various studies such as tensile, flexural, and impact in the area of the effect of amine functionalization of fiber/epoxy composites. Dynamic mechanical analysis and fatigue analysis are carried out to enable a study on the effect of amine functionalization. Variations in thermal stability of the composites are studied using TGA analysis. A maximum tensile strength value of 18.3 MPa is reached for the 6% amine functionalized composite compared to the plain epoxy of 9.4 MPa. The amine functionalized fiber-reinforced composites show improved thermal, mechanical, and morphological properties as a result of improved interaction between the fiber and matrix.
Genotyping of Trichomonas vaginalis isolates from women in Shahrekord city (Southwestern Iran)

Trichomonas vaginalis is a causative agent of vaginitis in female and urethritis in men. It is primarily transmitted by sexually route. It is known that each geographical area has its own set of Trichomonas vaginalis strain. Parasite strains in each region have its specific characterizations and different strains of the parasite are able to cause various diseases with the acuity and severity. The aim of this study was to determine the genotyping of Trichomonas vaginalis strains in the Shahrekord city (Chaharmahal Va Bakhtiari province, southwest Iran). A total of 1725 vaginal samples were taken from clinically suspected women for Trichomonas vaginalis infection and 21 specimens were diagnosed as positive by direct smear wet mount and culture repeated passage of the parasite in the modified TYI-S-33 medium. The genomic DNA was extracted from each sample and the nested polymerase chain reaction was applied using specific oligonucleotide primers for actin gene amplification. Finally, the restriction fragment length polymorphism using RsaI, MseI, and HindII restriction enzymes were done on PCR products for genotyping. PCR-RFLP analysis of 21 positive cases (1.22%) was showing the most frequent genotype was H (8 cases), followed by G (4 cases), E (3 cases), and P (2 cases). N and I genotypes were detected in each 1 case. Also, there was 2 cases mix (E and H) genotype. The findings of the present work were showed 7 different genetic strains in isolated Trichomonas vaginalis from symptomatic and asymptomatic women in Shahrekord city. In this study high level of H genotype in referred women in Shahrekord city was observed and H, G, E, and I genotypes were may be related to burning and itching as well as H, P, and mix genotypes were associated with malodorous discharge with pelvic pain in this region of Iran. For a suggestion, it would be better in further studies the accurate determination of genetic diversity of this parasite done in Chaharmahal Va Bakhtiari province and other parts of the country.
Fasting on Mondays and Thursdays as a Factor Increases the Emotional Intelligence of Young Moslem

Fasting is not only an obligation for a Moslem, but it also benefits the lives of Moslems who are fasting. This study examines the effectiveness of fasting Monday and Thursday toward emotional intelligence in young Moslems. This research is a kind of quantitative research experiment with the one-group pretest-posttest design model. The samples in this study have amounted to 15 young Moslems. The method of data collection uses the scale of emotional intelligence. The data analysis technique uses paired samples t-test techniques. The result of this study shows that fasting Monday and Thursday is one of the factors that increase emotional intelligence in young Moslems.
DERİN OTOMATİK KODLAYICI TABANLI ÖZELLİK ÇIKARIMI İLE ANDROİD KÖTÜCÜL YAZILIM UYGULAMALARININ TESPİTİ

Gunumuzde akilli telefonlar insan hayatinin vazgecilmez bir parcasi haline gelmistir. Android isletim sistemi bu cihazlar arasinda en yuksek kullanim oranina sahiptir. Gelismis ozellikleri sayesinde kullanicilarin fotograflari, saglik verileri, kimlik bilgileri ve banka bilgileri gibi kisisel bilgilerini saklamalarini saglar. Yaygin kullanimi ve gelismis ozellikleri nedeniyle kotu amacli yazilim gelistiricileri tarafindan en cok hedeflenen isletim sistemidir. Bu calismada Android kotucul yazilim uygulamalarinin tespitinde basariyi artirmak icin oncelikle derin oto kodlayici mimarisi kullanilarak ozellik cikarimi yapilmistir. Bir sonraki asamada ise makine ogrenmesi yontemlerinden Rasgele Orman (RO), K-En Yakin Komsu (K-EYK) ve Karar Agaci (KA) algoritmalari kullanilarak siniflandirma yapilmistir. Deneysel sonuclar derin oto kodlayici ve temel bilesen analizi kullanarak ozellik cikariminin basariyi artirdigini gostermistir. Yapilan analizlere gore, Rastgele Orman algoritmasinin % 94,40 ile en iyi dogruluga sahip oldugu gorulmustur.
Accidental finding in orthodontics – Rhinolith

Rhinolith is a calcareous secretion that occurs in the nasal cavity and is usually discovered during routine radiographic examination as it is rare, unilateral, and asymptomatic. It can sometimes lead to nasal obstruction, fetid odor, and purulent secretion. This case report is about the accidental finding of rhinolith during conventional diagnostic procedure. A 10-year-old female had an ovoid radiopacity in the right side of the nasal cavity. Although the patient had no symptoms of prevalence of this mass, it was found during routine radiographic examination. After the complete investigation of the radiopaque mass with the help of cone-beam computed tomography, the rhinolith was endoscopically removed.
Design and Performance Study of a Brushless Doubly Fed Generator Based on Differential Modulation

The brushless doubly fed generator (BDFG) has a good application prospect in the fields of ship shaft power generation and wind power generation due to its simple structure, safety, and reliability. In previous studies, the brushless doubly fed machine (BDFM) is all based on additive modulation and whose natural synchronous speed is $60{f_1}/({{p_1} + {p_2}})$. The natural synchronous speed and power density of BDFM are lower than those of traditional asynchronous machine. In order to increase the natural synchronous speed and expand the machine's operating range, this article proposes a BDFG based on differential modulation and whose natural synchronous speed is $60{f_1}/| {{p_1} - {p_2}} |$. First, this article analyzes the basic working principle of differential modulation BDFG and the key factors that prevent it from developing. Then, a design scheme of stator winding and rotor winding for differential modulation BDFG is presented. Finally, the finite-element model of the BDFG is established on the basis of the winding design example, and the experimental prototype is designed and manufactured. The steady-state performance of the differential modulation BDFG is analyzed according to the simulation and experiment, and the feasibility of the design scheme is verified.