Miracle-dz/UniFAR-FTUs huggingface dataset:
On the buckling of the polymer-CNT-fiber nanocomposite annular system under thermo-mechanical loads

Abstract This article presents the axial buckling analysis of polymer-CNT-fiber nanocomposite annular system (PCFCAS) resting on Winkler-Pasternak substrates under various temperature gradients. With the aid of Hamilton’s principle and the higher-order shear deformation theory (HSDT), the governing equations are derived. For developing an accurate solution approach, a generalized differential quadrature method (GDQM) is finally employed. Various geometrically parameters are taken into account to investigate the axial buckling analysis of the PCFCAS subjected to a high-temperature environment. Finally, the presented results demonstrate that different parameters such as outer to inner radius ratio (Ro/Ri), patterns of temperature increase, volume fraction and orientation angle of the carbon fibers (CFs), weight fraction and distribution patterns of carbon-nanotubes (CNTs), and other geometrical and physical parameters have an important role in the axial buckling load of the current structure. The fundamental and golden results of this paper could be that when the PCFCAS is in an environment with sinusoidal, and uniform temperature change, the structure encounters with the highest axial buckling load. In contrast, the lowest buckling load occurs for the uniform temperature change. Also, when the effect of the Winkler and Pasternak foundation is considered, there is a sinusoidal effect from the Ro/Ri parameter on the axial buckling load of the disk, and this matter is true for all boundary conditions.
Drosophila Yemanuclein is required for meiosis in the oocyte and paternal chromatin assembly in the zygote

Sexual reproduction relies on two key events: formation of cells with a haploid genome through meiosis and restoration of diploidy through syngamy in the zygote. Meiosis completion is supported exclusively by the maternal genome for the oocyte and the paternal genome for the sperm cell. In contrast diploidy restoration in the zygote is entirely dependent on maternal factors. At the end of meiosis the maternal pronucleus is competent for replication, whereas the paternal genome is packed with protamines. These proteins need to be removed in the zygote and replaced by maternally provided histones before the paternal genome acquires competence for replication, a prerequisite for syngamy. All these events must be highly coordinated to allow the first zygotic nucleus to form with the two sets of parental chromosomes and enter the first mitotic cycle. Our laboratory has identified yemanuclein-alpha, also called yemanuclein (yem) in a molecular screen for genes specifically expressed in the female germ line and its first mutant allele yem1, in a female sterile screen. The role played by yem not only in the meiotic process through which a haploid maternal pronucleus is formed but also in the zygotic process that makes a paternal pronucleus competent for syngamy, is underscored by the obtention of exceptional parthenogenetic progeny from yem1 mothers.My thesis work is precisely dedicated to the analysis of both aspects of Yemanuclein function: in the oocyte and the zygote. Using genetic, biochemical and cell biology methods we were able to uncover essential functions of Yemanuclein in early meiotic prophase in the Drosophila oocyte. Using yem1 allele (V478E), we could show its requirement for meiotic recombination especially for the frequency and timing of the double strand breaks formation. Yemanuclein association with two protein complexes, the Synaptonemal Complex (SC) and the Cohesin complex known to be required for proper chromosome segregation, supports these findings. Beyond its meiotic function, Yemanuclein is also required in the zygote for assembly of paternal pronucleus chromatin. This is achieved through a third complex that acts as histone H3.3 chaperone. In the present manuscript we identify Yemanuclein as a partner of HIRA in its role in H3.3 nucleosome assembly and deposition on the paternal pronucleus. Interestingly Yemanuclein is the first member of the HPC2/UBN1 protein family ever characterized. The role of Yem/ HPC2/ UBN1 in replication independent chromatin remodeling remained elusive until very recently. Our work is original in that it is the first to report on a role of one member of this family in oocyte meiosis and paternal chromatin assembly in the zygote.
Design of Experiment in the Milling Process of Aluminum Alloys in the Aerospace Industry

For many years, surface has quality received a serious attention due to its influence on various mechanical properties. The main contribution made in this scientific paper is the performance of actual experiments, as well as the experimental processing obtained in order to develop a model for predicting the surface roughness based on the optimization of cutting parameters. The novelty of this paper is brought by the method of obtaining the regression equation of the surface roughness, resulted from a standard end-milling process (standard milling tools, standard milling parameters, recommended by the tool manufacturer, 3 axis CNC machine and standard vice), on aluminum alloy 7136 in temper T76511, through two statistical methods of data analysis. This material is used for the production of extruded parts and is poorly understood for the proposed line of research. This study’s aim is to determine the surface roughness equation obtained by the milling of aluminum alloy 7136 in two ways: using Taguchi′s experimental design once and the other, using the central composite design. The Taguchi method and the central composite design are used to develop an efficient mathematical model to predict the optimal level of certain processing parameters. Using ANOVA analysis, a comparative study of calculated and experimental surface roughness values is carried out. The initial characteristics (surface roughness) and the controlled factors (cutting speed, depth of cut and feed) are analyzed with the Minitab program. Finally, an analysis of the advantages and disadvantages of the two methods used is presented. This study has a great industrial application, since the main task of every manufacturer is to achieve a better quality of the final product with minimal processing time.
Simulation of the measurement error of independent emission-spectral unmixing FRET

Independent emission-spectral unmixing fluorescence resonance energy transfer, Iem-spFRET, is a novel and powerful tool for measuring FRET efficiency in real time. In this paper, we simulate the measurement error of the Iem-spFRET by introducing random noise in sample data, donor fingerprint, and acceptor fingerprint. The random noise intensity is set from 0.0005 to 0.0025, corresponding to 5% - 25% of the maximum donor fingerprint intensity. The simulated results show the effect of random noise on apparent FRET efficiency (EfD) is less than on receptor-to-donor concentration ratio (Rc). Random noise with 10% maximum donor fingerprint intensity only leads to 0.33% variation of when the noise is added to both sample and fingerprints. These results indicate that Iem-spFRET is a robust method and could be applied on cases with weak FRET signal.
How gratitude improves relationship marketing outcomes for young consumers

Purpose Relationship marketing is about developing, maintaining and sustaining mutually beneficial customer–organisation relationships as measured by economic gains. Yet, a purely economic focus does not fully offer a psychological explanation of relationship marketing outcomes. In this regard, this paper has considered gratitude as a significant component of personal relationships, which offers insights into a customer–organisation relationships. Accordingly, this study aims to examine gratitude as a mechanism to predict relationship marketing outcomes, such as overall satisfaction, trust and commitment. Design/methodology/approach Data were collected from 1,093 millennial consumers across three university campuses. Findings Results indicate that gratitude is a mediating mechanism that can explain the relationship between young consumers’ perceptions of relationship marketing investments and overall satisfaction, trust and commitment. Perceived benevolence strengthens the relationship between perceived relationship marketing investments and customer gratitude. Originality/value The gratitude model contributes an alternative understanding of how young consumers’ perceptions of an organisation’s marketing investments are important in achieving a high degree of relationship marketing outcomes. This paper further incorporates the moderating roles of customer cynicism and perceptions of benevolence, key individual and relational characteristics, that influence the level of gratitude individuals to experience in response to the investments made by organisations.
Larvicidal activity of Neem oil and three plant essential oils from Senegal against Chrysodeixis chalcites (Esper, 1789)

Objective: To evaluate the insecticide, larvicidal and repellent activity of the essential oils from Callistemon viminalis, Melaleuca leucadendron, and Hyptis suaveolens against Chrysodeixis chalcites and to compare it with neem oil (Azadirachta indica). Methods: The essential oils of the leaves of these aromatiques plants were extracted by steam distillation and contacts tests were carried out. Results: Essential oils in ethanol from Callistemon viminalis showed a higher biological activity than the neem with 100% larval mortality at the concentration of 2 μg/mL for 6 h, 100% and 90% in ethanol from Melaleuca leucadendron and Hyptis suaveolens, respectively at the concentration of 4 μg/mL for 24 h. By inhalation, the essential oils from Melaleuca leucadendron and of Hyptis suaveolens were more effective with mortality rates of larvae 100% and 50% respectively at 2 μg/L air applied after 24 h. Nevertheless, the neem has shown to be a repulsive plant and anti-nutritional plant. A significant difference in the percentages of consumption between leaves treated with neem oil and the control samples was observed (Newman-Keuls test) except for Melaleuca leucadendron. Conclusions: The results of the study highlight remarkable biocide, properties of tested extracts, which provides important opportunities for the development of biopesticides.
NDM-1-Positive K. pneumoniae at a Teaching Hospital in Southwestern China: Clinical Characteristics, Antimicrobial Resistance, Molecular Characterization, Biofilm Assay, and Virulence

Background The emergence of the NDM-1-positive Klebsiella pneumoniae (K. pneumoniae) strains has led to limited therapeutic options for clinical treatment. Understanding the clinical characteristics, antimicrobial resistance, biofilm assay, and the virulence genes of these isolated strains is of great significance. Methods The polymerase chain reaction (PCR) was used to screen isolated NDM-1-positive K. pneumoniae. The clinical information of the patients was collected from medical records. The NDM-1-positive K. pneumoniae isolates were subjected to antimicrobial susceptibility testing and multilocus sequence typing. Sixty strains of NDM-1-negative K. pneumoniae isolated during the same period were collected as the control group for the virulence analysis. The virulence phenotype of the strains was preliminarily evaluated by the string test and crystal violet semiquantitative biofilm formation experiment. PCR combined with gene sequencing was used to detect common high toxicity capsule genes (K1, K2, K5, K20, K54, and K57) and common virulence-related genes (entB, ybtS, ureA, ycf, WabG, FimH, uge, iutA, KfuB, aerobactin, rmpA, magA, Alls, IrnN, and VatD). Results In the 30 nonduplicated NDM-1-positive K. pneumoniae isolates, 43.33% (13/30) of the patients had a history of a stay in the neonatal intensive care unit (NICU). All of the isolates exhibited multidrug resistance. Nine STs were identified, 77% (10/13) strains from the NICU were ST11. The NDM-1-positive K. pneumoniae string tests were all negative, and 35% (21/60) NDM-1-negative K. pneumoniae were positive. The ratios of NDM-1-positive K. pneumoniae isolates biofilm formation ability according to strong, medium, and weak classification were 67%, 23%, and 10%, respectively. NDM-1-negative K. pneumoniae isolates were 60%, 25%, and 15%, respectively. There was no statistical difference between the two groups (t = 0.61, P=0.2723). The virulence-associated genes with more than 80% of detection rates among the 30 NDM-1-positive K. pneumoniae isolates included entB (100%, 30/30), ybtS (93.33%, 28/30), ureA (90%, 27/30), ycf (83.33%, 25/30), and wabG (90%, 27/30). KfuB and iutA were detected at prevalence of 3.33% and 13.33%. vatD, allS, iroN, aerobactin, and rmpA were not detected. In the NDM-1-negative K. pneumoniae, all other 14 virulence genes except VatD were detected. After statistical analysis, FimH, WabG, ycf, iutA, kfuB, aerobactin, rmpA, and Alls virulence genes, P < 0.005, there was a statistical difference. Conclusion NDM-1-positive K. pneumoniae exhibited multidrug resistance, MLST typing is mainly ST11, there is small clonal dissemination in the NICU in the hospital, and the NDM-1-positive K. pneumoniae virulence genes carrier rate is lower than the NDM-1-negative K. pneumoniae virulence genes carrier rate.
Patterns and isotopic composition of greenhouse gases under ice in lakes of interior Alaska

Arctic and boreal lake greenhouse gas emissions (GHG) are an important component of regional carbon (C) budgets. Yet the magnitude and seasonal patterns of lake GHG emissions are poorly constrained, because sampling is limited in these remote landscapes, particularly during winter and shoulder seasons. To better define patterns of under ice GHG content (and emissions potential at spring thaw), we surveyed carbon dioxide (CO2) and methane (CH4) concentrations and stable isotopic composition during winter of 2017 in 13 lakes in the arid Yukon Flats Basin of interior Alaska, USA. Partial pressures of CO2 and CH4 ranged over three orders of magnitude, were positively correlated, and CO2 exceeded CH4 at all but one site. Shallow, organic matter-rich lakes located at lower elevations tended to have the highest concentrations of both gases, though CH4 content was more heterogeneous and only abundant in oxygen-depleted lakes, while CO2 was negatively correlated to oxygen content. Isotopic values of CO2 spanned a narrow range (−10‰ to −23‰) compared to CH4, which ranged over 50‰ (−19‰ to −71‰), indicating CH4 source pathways and sink strength varied widely between lakes. Miller-Tans and Keeling plots qualitatively suggested two groups of lakes were present; one with isotopically enriched source CH4 possibly more dominated by acetoclastic methanogenesis, and one with depleted signatures suggesting a dominance of the hydrogenotrophic production. Overall, regional lake differences in winter under ice GHG content appear to track landscape position, oxygen, and organic matter content and composition, causing patterns to vary widely even within a relatively small geographic area of interior Alaska.
Understanding low outcomes in English language education in Austrian middle schools: the role of teachers’ beliefs and practices

ABSTRACT The educational disparities that can be found in the English language learning outcomes of middle school students in Austria have gone relatively unexplored in international research. National studies have tended to attribute lower educational outcomes either to students’ socioeconomic status or their multilingual background. In this article, we use the theory of intersectionality to shed new light on how educational disparities that run along socioeconomic lines are tightly entangled with beliefs about students’ multilingualism, arguing that these two factors must be explored in tandem to understand educational disadvantage in this context. Our study brings together a rich description of the educational context with a quantitative exploration via questionnaire of the beliefs and classroom practices of 56 English teachers at Austrian middle schools. Analyses of the data allow insight into how teachers’ beliefs about their students’ abilities, motivations and access to English outside of school and teachers’ language use in the classroom all relate to the lower outcomes in English at Austrian middle schools. The article closes by considering the importance of the findings for policy and practice in English language education in Austria, including ideas for the transformation of these.
Price Determinants of Stock-Type Horses Sold at Public Online Auctions

Abstract There is a shift in livestock auction sales in consolidation of live markets and movement toward virtual marketplaces. We examine buyer preferences for nonracing stock-type horses sold through virtual auctions to better understand how animals are sold and their valuation. A shift towards online sales of equine has impacted the number of potential buyers through increased exposure to sale horses. Using data collected from online auctions, we estimate factors influencing propensity to sell as well as price determinants in this market platform. We find many factors contribute to the likelihood of a horse selling and to the final sale price.
A Silver Standard Biomedical Corpus for Arabic Language

The rapidly growing data in many areas, as well as in the biomedical domain, require the assistance of information extraction systems to acquire the much needed knowledge about specific entities such as proteins, drugs, or diseases practically within a short time. Annotated corpora serve the purpose of facilitating the process of building NLP systems. While colossal work has been done in this area for English language, other languages like Arabic seem to lack these resources, especially in the healthcare area. Therefore, in this work, we present a method to develop a silver standard medical corpus for the Arabic language with a dictionary as a minimal supervision tool. The corpus contains 49,856 sentences tagged with 13 entity types corresponding to a subset of UMLS (Unified Medical Language System) concept types. The evaluation of a subset of corpus showed the efficiency of the method used to annotate it with 90% accuracy.
Top Corporate Leaders in Vietnam's Transitional Economy: Origins and Career Pathways

Literature on the corporate elite in transitional economies has focused on the elite’s political backgrounds. However, the evolution of the corporate sector amidst decades of transition in these economies suggests that research needs to go beyond origins to focus on career pathways. Adopting a career history analysis, this study constitutes the first systematic attempt to empirically analyze career pathways of top corporate leaders in Vietnam, where, the literature has argued, capitalists emerged from within the state sector. The analysis of an originally constructed database of top leaders of the 100 largest listed firms reveals, firstly, that state-origin leaders persist alongside newly emerging private-origin leaders and, secondly, that leaders following different career pathways exhibit different attributes, which influence the leaders’ capacity to rise and stay in power. These findings demonstrate how a focus on career pathways would shed new light on the emerging patterns and drivers of social stratification in transitional economies.
FORECASTING GASOLINE DEMAND IN INDONESIA USING TIME SERIES

Fuel is an essential commodity in both the economy and society. Indonesian fuel demand continues to increase annually, whereas fuel production has decreased. Gasoline accounts for more than 50% of fuel consumption for transportation. A reliable gasoline product demand forecast is required to plan the gasoline supply. The objective of this study is to forecast the demand for total gasoline and its three components, which are gasoline 88, gasoline 90, and gasoline 92. This study compared the Holt–Winters additive model and autoregressive integrated moving average for the time-series data for the 2017–2019 period. Because the Holt–Winters additive model generates more accurate results, it was applied to predict the total demand for gasoline during 2020–2022. The results of the combination of the Holt–Winters model and a neural network to forecast gasoline 92 demand had lower errors than the individual Holt–Winters method. The forecast results show that total gasoline demand is forecasted to increase, but the components indicate a different trend. Gasoline 92 and gasoline 88 decreased, but gasoline 90 increased.
Sclerostin-Neutralizing Antibody Enhances Bone Regeneration Around Oral Implants.

BACKGROUND Dental implants are an important option for replacement of missing teeth. A major clinical challenge is how best to accelerate bone regeneration and reduce the healing time for functional restoration after implant placement. A sclerostin-neutralizing antibody (Scl-Ab) has been shown to enhance alveolar bone formation and fracture repair. The aim of this study was to investigate the effects of systemic administration of Scl-Ab on dental implant osseointegration and bone regeneration in an experimental alveolar ridge tooth extraction model. MATERIALS AND METHODS To investigate the effects of Scl-Ab on bone regeneration and dental implant osseointegration, an experimental alveolar bone osteotomy rat model was adopted. One month after extraction of maxillary right first molars, osteotomy defects were created at the coronal aspect of each of the extraction sites, and 1 × 2-mm custom titanium implants were installed into the osteotomies. Coincident with implant placement, Scl-Ab was administered subcutaneously at a dose of 25 mg/kg twice weekly for 10-28 days and compared with a vehicle control. Animals were sacrificed 10, 14, and 28 days after surgery, and maxillae were harvested and analyzed by microcomputed tomography (microCT), histology, and histomorphometry. RESULTS microCT analysis demonstrated that the maxillary bone volume fraction was approximately 2- to 2.5-fold greater in Scl-Ab-treated animals compared with vehicle alone at days 14 and 28. Consistent with those findings, two-dimensional bone fill percentages within the coronal osteotomy sites were highest in Scl-Ab treatment groups at 28 days. In addition, bone-implant contact at 28 days was approximately twofold greater in the Scl-Ab group compared with the vehicle control. CONCLUSIONS These results indicate that systemic Scl-Ab administration enhances osseointegration and bone regeneration around dental implants. This approach offers potential as a treatment modality for patients with low bone mass or bone defects to achieve more predictable bone regeneration at alveolar bone defects and to enhance dental implant osseointegration.