Miracle-dz/UniFAR-FTUs huggingface dataset:
An experimental analysis and optimization of process parameters of AA6061 and AA7075 welded joint by TIG+FSP welding using RSM

ABSTRACT The empirical relationships were developed to predict the tensile strength, percentage elongation, micro-hardness and residual stress of the TIG+FSP welded joint of AA6061 and AA7075 at a 95% confidence level. The developed models show that the tool rotational speed and tilt angle are the dominating parameters as compare to others. The decrease in traverse speed and increase the tool rotational speed lead to the increase in heat input to TIG+FSP welded joint. The confidence interval has shown that tensile strength and hardness increased with increasing tool rotation, whereas residual stress decreased with increasing tool rotation. The minimum compressive residual stress of 18 MPa, maximum tensile strength (255 MPa), and hardness (105 HV) were located at the nugget zone of the TIG+FSP weldment at tool rotation 1300 rpm, traverse speed 45 mm/min with tilt angle 1°. The optimized value of tensile strength, percentage elongation, micro-hardness at nugget zone, and residual stress at nugget zone is 216.52 MPa, 23.65%, 89.65 HV, and 43.74 MPa respectively, whereas the optimized input process parameters tool rotation, traverse speed, and tilt angle are 1123.53 rpm, 50.37 mm/min and 0.14240 respectively.
The Production of Information in an Online World: Is Copy Right?

News production requires investment, and competitors’ ability to appropriate a story may reduce a media’s incentives to provide original content. Yet, there is little legal protection of intellectual property rights in online news production, which raises the issue of the extent of copying online and the incentives to provide original content. In this article, we build a unique dataset combining all the online content produced by French news media during the year 2013 with new micro audience data. We develop a topic detection algorithm that identifies each news event, trace the timeline of each story, and study news propagation. We provide new evidence on online news production. First, we document high reactivity of online media: one quarter of the news stories are reproduced online in under 4 min. We show that this is accompanied by substantial copying, both at the extensive and at the intensive margins, which may constitute a severe threat to the commercial viability of the news media. Next, we estimate the returns to originality in online news production. Using article-level variations and media-level daily audience combined with article-level social media statistics, we find that original content producers tend to receive more viewers, thereby mitigating the newsgathering incentive problem raised by copying.
A Chinese Stock Reviews Sentiment Analysis Based on BERT Model

A huge amount of stock reviews occurred on the Internet due to its rapid development, therefore, the stock reviews sentiment analysis has profound significance for the study of the financial market. Due to the lack of a large amount of labeled data, the accuracy of existing sentiment analysis of Chinese stock reviews remains to be further improved. In this paper, a sentiment analysis algorithm for Chinese stock reviews based on BERT is proposed and it improves the accuracy of sentiment classification. The algorithm uses BERT pre-training language model to perform representation of stock reviews on the sentence level, and then input the obtained feature vector into the classifier layer for classification. In the experiments, we show our method has nearly 8% and 9% improvement than TextCNN and TextRNN in F1, respectively. Our model can obtain the best results via fine-tuning which is proved to be effective in Chinese stock review sentiment analysis.
Performance of purslane biomass production (Portulaca oleracea) under different organic substrate concentrations

Objectives: To evaluate different concentrations based on cattle manure as an alternative in purslane production. Methodology: The experiment was conducted in a greenhouse at the Center for Agricultural Sciences and Engineering of the Federal University of Espirito Santo in Alegre, ES/ Brazil. The experimental arrangement used was a completely randomized design (CRD) with 5 treatments and 6 replications. The treatments consisted of distinct dosages of the substrate based on cattle manure (0 mL; 125 mL; 250 mL; 500 mL and 1000 mL), which were applied in 5 L of soil, considered as an experimental unit. Root dry mass and aerial dry mass were evaluated. Results: Application of 500 mL of cattle manure provided a higher accumulation of shoot dry mass (25 g/plant). For root dry mass, there were no statistically significant differences. Conclusions: Under the conditions of the present work, it is concluded that the use of organic manure with cattle manure is viable.
Development of radiation education in schools after the Fukushima Daiichi nuclear power plant accident ― a study from the perspectives of regionality, multidisciplinarity and continuity

This study was designed to examine how teachers in Fukushima Prefecture have shaped radiation education and gained consensus on radiation-related issues since the Fukushima Daiichi nuclear power plant accident. We interviewed teachers and external experts who have been conducting radiation education since the nuclear accident, ascertaining their focus in introducing and implementing radiation education and the lessons they have learned. We then qualitatively analyzed the results. There was no practical radiation course of study (Shido Yoryo) to follow immediately after the disaster, so teachers individually devised curricula according to the developmental stages of their students. Their aims were to (1) tailor lesson structure to the students’ anxieties and distress, (2) promote students’ activities through knowledge and linkage to their daily lives via radiation measurements and disaster site visits, and (3) enable the students to self-educate and to take informed decision. These objectives required the implementation of continuous, multidisciplinary radiation education to enable the students to understand the impacts of the nuclear accident and enhance the resilience of children growing up in Fukushima, allowing them to overpass the rumor and stigma and to adopt adequate protective measures to face the remaining radiation in their environment. As nearly 10 years has passed since the accident, radiation education at schools has reached a turning point. While social interest in radiation education is waning, it is hard to say that adequate radiation knowledge has taken root among students, and therefore it is necessary to consider how radiation education should be delivered in the future. Such curricula based on the experiences of Fukushima Prefecture should be shared internationally in preparation for potential future accidents.
ÖRGÜT İKLİMİNİN ÖRGÜTSEL SİNİZM ÜZERİNDEKİ ETKİSİNDE LİDER-ÜYE ETKİLEŞİMİNİN ARACILIK ROLÜ

Bu calismanin amaci orgut iklimi alt boyutlarinin orgutsel sinizm boyutlari uzerindeki etkisinde lider-uye etkilesiminin aracilik rolunu arastirmaktir. Bu amac dogrultusunda arastirma Tokat ili merkez ilcesi ve 4 buyuk ilcesinde yer alan 319 banka personeli uzerinde gerceklestirilmistir. Arastirma sonucu elde edilen verilerin analizinde SPSS 25.0 ve AMOS 20.0 kullanilmistir. Arastirma hipotezlerini test etmek amaciyla yapisal esitlik modellemesi kullanilmistir. Yapisal esitlik modelinden elde edilen bulgulara gore orgut iklimi alt boyutlarindan farkedilme ikliminin bilissel ve davranissal sinizm uzerinde, destek ikliminin duygusal ve davranissal sinizm uzerinde, orgutsel yapi ve baglilik iklimlerinin tum orgutsel sinizm boyutlari uzerinde negatif yonde etkiye sahip oldugu belirlenmistir. Araci role sahip degiskenin modele dahil edilmesi ile tum orgut iklimi boyutlarinin lider-uye etkilesimi uzerinde pozitif yonde anlamli etkisi oldugu, lider-uye etkilesiminin de bilissel ve duygusal sinizmi negatif yonde etkiledigi belirlenmistir. Bu sonuclara gore orgut iklimi alt boyutlarinin orgutsel sinizm boyutlari uzerindeki negatif yonlu anlamli etkilerinde, lider-uye etkilesiminin kismi ve tam aracilik rollerine sahip oldugu tespit edilmistir. Arastirma modelinden elde edilen sonuclara gore orgutte var olan pozitif iklim calisanin lideri ile daha kolay ve olumlu etkilesim kurabilmesine olanak saglamaktadir. Saglanan lider-uye etkilesimi vasitasiyla calisanin algiladigi bilissel ve duygusal sinizm dolayli olarak azalmaktadir. Arastirma sonuclari neticesinde uygulayacilara ve arastirmacilara yonelik cesitli oneriler sunulmustur.
Differential Production and Secretion of Potentially Toxigenic Extracellular Proteins From A Hypervirulent Strain of Aeromonas Hydrophila

Background: Hypervirulent Aeromonas hydrophila (vAh) is a pathogen in freshwater aquaculture that results in the loss of over 3 million pounds of marketable channel catfish, Ictalurus punctatus, and catfish hybrids (I. punctatus, ♀ x blue catfish, I. furcatus, ♂) each year from freshwater catfish production systems in Alabama, U.S.A. vAh isolates are clonal in nature and are genetically unique from, and significantly more virulent than, traditional A. hydrophila isolates from fish. Even with the increased virulence, natural infections cannot be reproduced in aquaria challenges making it difficult to determine modes of infection and the pathophysiology behind the devastating mortalities that are commonly observed. Despite the intimate connection between environmental adaptation and plastic response, the role of environmental adaption on vAh pathogenicity and virulence has not been previously explored. In this study, secreted proteins of vAh cultured as free-living planktonic cells and within a biofilm were compared to elucidate the role of biofilm growth on virulence. Results: Functional proteolytic assays found significantly increased degradative activity in biofilm secretomes; in contrast, planktonic secretomes had significantly increased hemolytic activity, suggesting higher toxigenic potential. Intramuscular injection challenges in a channel catfish model showed that in vitro degradative activity translated into in vivo tissue destruction. Identification of secreted proteins by HPLC-MS/MS revealed the presence of many putative virulence proteins under both growth conditions. Biofilm grown vAh produced higher levels of proteolytic enzymes and adhesins, whereas planktonically grown cells secreted higher levels of toxins, porins, and fimbrial proteins. Conclusions: This study is the first comparison of the secreted proteomes of vAh when grown in two distinct ecological niches. These data on the adaptive physiological response of vAh based on growth condition increase our understanding of how environmental niche partitioning could affect vAh pathogenicity and virulence. Increased secretion of colonization factors and degradative enzymes during biofilm growth and residency may increase bacterial attachment and host invasiveness, while increased secretion of hemolysins, porins, and other potential toxins under planktonic growth (or after host invasion) could result in increased host mortality. The results of this research underscore the need to use culture methods that more closely mimic natural ecological habitat growth to improve our understanding of vAh pathogenesis.
Aerosol analysis of residual and nanoparticle fractions from spray pyrolysis of poorly volatile precursors

The quality of aerosol-produced nanopowders can be impaired by micron-sized particles formed due to non-uniform process conditions. Methods to evaluate the quality reliably and fast, preferably on-line, are important at industrial scales. Here, aerosol analysis methods are used to determine the fractions of nanoparticles and micron-sized residuals from poorly volatile precursors. This is accomplished using aerosol instruments to measure the number and mass size distributions of Liquid Flame Spray-generated alumina and silver particles produced from metal nitrates dissolved in ethanol and 2-ethylhexanoic acid (EHA). The addition of EHA had no effect on silver, whereas, 5% EHA concentration was enough to shift the alumina mass from the residuals to nanoparticles. The size-resolved aerosol analysis proved to be an effective method for determining the product quality. Moreover, the used on-line techniques alone can be used to evaluate the process output when producing nanopowders, reducing the need for tedious off-line analyses. © 2016 American Institute of Chemical Engineers AIChE J, 2016
Novel fully vertical GaN p–n diode on Si substrate grown by metalorganic chemical vapor deposition

We report novel GaN fully vertical p–n diode on Si grown by metalorganic chemical vapor deposition. The thick strained layer superlattice is effective in controlling a doping level of 1016 cm−3 in an n−-GaN drift layer. The GaN p–n diode exhibits a differential on-resistance Ron of 7.4 mΩ cm2, a turn-on voltage of 3.4 V, and a breakdown voltage VB of 288 V. The corresponding Baliga’s figure of merit (FOM) is 11.2 MW/cm2. A good FOM value for the GaN-on-Si vertical p–n diode is realized for a drift layer thickness of 1.5 µm without using substrate removal technology.
Awareness of Coronavirus Disease From Conception to Delivery: Antenatal Mental Journey Breaking Anxiety During Outbreak

Purpose The objective of this study was to evaluate the psychological impact of the coronavirus disease on women sensitized by pregnancy after the first case was confirmed in Turkey, which has been declared a pandemic by the World Health Organization. This study also intends to help developing preventive measures for pregnants, reducing infection incidence, developing solutions to protect public health, and establishing whether pregnants have sufficient knowledge and awareness to manage this situation. Methods This prospective study was conducted at two centers. A total of 529 pregnant women from all three trimesters were given questionnaires that consisted of 51 original questions. Results The period when anxiety was highest was the 2nd trimester, whereas women in the 1st trimester had the lowest level of anxiety. High levels of awareness were observed in patients with heart disease, but patients with diabetes mellitus had a high level of anxiety. There was a statistically significant correlation between anxiety and awareness scores of the coronavirus disease. Conclusion The treatment and the long-term effects of the coronavirus disease remain unknown. It is important to maintain the mental and physical health of pregnants, who are in a more delicate condition in the society.
From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba2Mn4Ti2(Si2O7)2O2(OH)2F2, a Group-II TS-block mineral

Abstract The crystal structure of hejtmanite, Ba2Mn4Ti2(Si2O7)2O2(OH)2F2, from Mbolve Hill, Mkushi River area, Central Province, Zambia (holotype material) has been refined on a twinned crystal to R1 = 1.88% on the basis of 4539 [|F| > 4σ|F|] reflections. Hejtmanite is triclinic, C1̄, a = 10.716(2), b = 13.795(3), c = 11.778 (2) Å, α = 90.07(3), β = 112.24(3), γ = 90.03(3)°, V = 1612(2) Å3. Chemical analysis (electron microprobe) gives: Ta2O5 0.09, Nb2O5 1.27, ZrO2 0.65, TiO2 14.35, SiO2 23.13, BaO 26.68, SrO 0.19, FeO 11.28, MnO 15.12, Cs2O 0.05, K2O 0.33, F 3.82, H2Ocalc. 1.63, O = F -1.61, total 97.10 wt. %, where the H2O content was calculated from the crystal-structure refinement, with (OH + F) = 4 apfu. The empirical formula, calculated on the basis of 20 (O + F) anions, is of the form AP2MO4MH2(Si2O7)2(XO)4(XP)2, Z=4:(Ba1.82K0.07Sr0.02)Σ1. 91(Mn2.33Fe2+1.65Zr0.04Mg0.03)Σ3. 95(Ti1.88Nb0.10Zr0.02)Σ2(Si2.02O7)2O2[(OH)1.89F0. 11]Σ2F2. The crystal structure is a combination of a TS (Titanium Silicate) block and an I (intermediate) block. The TS block consists of HOH sheets (H - heteropolyhedral, O - octahedral). The topology of the TS block is as in Group-II TS-block minerals: Ti(+Nb) = 2 apfu per (Si2O7)2 [as defined by Sokolova (2006)]. In the O sheet, five [6]MO sites are occupied mainly by Mn, less Fe2+ and minor Zr and Mg, with = 2.198 Å(φ = O,OH), ideally giving Mn4 apfu. In the H sheet, two [6]MH sites are occupied mainly by Ti, with = 1.962 Å (φ = O,F), ideally giving Ti2 apfu; four [4]Si sites are occupied by Si, with < Si-O> = 1.625 Å. The MH octahedra and Si2O7 groups constitute the H sheet. The two [12]Ba-dominant AP(1,2) sites, with = 2.984 Å (φ = O, F), ideally give Ba2 apfu. Two XOM(1,2) and two XOA(1,2) sites are occupied by O atoms and OH groups with minor F, respectively, ideally giving (XO)4 = (XMO)2 + (XAO)2=O2(OH)2 pfu. Two XPM(1,2) sites are occupied by F, giving F2 apfu. TS blocks link via a layer of Ba atoms which constitute the I block. Simplified and end-member formulae of hejtmanite are Ba2(Mn,Fe2+)4Ti2(Si2O7)2O2(OH,F)2F2 and Ba2Mn4Ti2(Si2O7)2O2(OH)2F2, Z = 4. Hejtmanite is a Mn-analogue of bafertisite, Ba2Fe2+4Ti2(Si2O7)2O2(OH)2F2.
Metal in situ surface functionalization of polymer-grafted-carbon nanotube composite membranes for fast efficient nanofiltration

The development of inorganic functionalized membranes with the capacity to effectively separate molecules or ions in solutions based on the size or electrostatic interactions is pivotal to purification and separation applications. Herein, we demonstrate a novel green strategy utilizing a completely aqueous process to construct an asymmetrically structured metal surface functionalized polymer–matrix nanocomposite nanofiltration membrane. Crosslinked polyethyleneimine (PEI) is grafted on a carboxylated carbon nanotube intermediate layer incorporated into the macroporous cellulose acetate substrate to form the composite membrane. The resulting membrane is subsequently inorganically modified via an in situ surface reaction of zinc nitrate with excess ammonium hydroxide to produce the hydrophilic and positively charged membrane. Crosslinking enhances the polymer interaction with the carbon nanotube interlayer which in turn endows it with mechanical strength and sustains the membrane pore structure during pressure driven filtration. The functionalized membrane displays outstanding pure water flux of 16.5 ± 1.3 L m−2 h−1 bar−1 while exhibiting good nanofiltration performance of bivalent cations, which is ascribed to the electrostatic repulsion via the Donnan exclusion effect. Meanwhile the membranes exhibit excellent separation of organic molecules and long-term filtration stability. This newly developed approach presents a promising route for the construction of highly permeable nanofiltration membranes for fast purification and separation applications.
Genetics of Quality Attributes and Powdery Mildew Severity in Garden Pea (Pisum sativum Var. Hortense L.) under Sub Temperate Conditions of North-Western Himalayas

Background: The choice of appropriate breeding method for improvement of traits depends largely on gene action. Hence, an understanding of the inheritance of quantitative traits is essential to develop an efficient breeding strategy.Methods: Twelve generations of three inter-varietal crosses involving four diverse parents of garden pea were studied for biochemical traits and powdery mildew disease severity to analyze the nature of gene effects by using generation mean anaylsis.Result: Duplicate type of epistasis was observed for protein content in all or one or other crosses. In most cases, the presences of linkage among interacting genes or higher order interactions at several loci were involved. Non-fixable gene effects were many times higher than fixable one in all the crosses indicating a major role non-additive gene effects in the inheritance of these traits. The type of gene effects along with presence of non-allelic interactions suggested the adoption of population improvement methods to break undesirable linkages through recombination. The other alternative can be to defer selection in the later generations by advancing segregating populations through bulk pedigree or SSD methods with one or two inter-matings like recurrent selection. Based on pod characteristics and powdery mildew disease severity203 single plant progenies were isolated over the generations of three crosses along with bulk seed following SSD and bulk method to isolate transgressive segregants.
Geração de Matrizes de Coocorrência na GPU com Aplicações em Bases Textuais

Co-occurrence matrices are computational artifacts used in applications such as the representation models, in typical NLP (Natural Language Processing) tasks such as machine translation, text mining, document classification. Its construction is quite computationally expensive, because it requires the analysis of the co-occurrence relationship between the terms existing in a corpus, and may require a lot of memory to store these relationships, if the vocabulary, the context window and the corpus used are very large. To overcome these limitations, our solution was based on a hash-like data structure, capable of efficiently storing an inherently sparse matrix of large dimensions. This solution adapts easily to different architectures, having been implemented and tested in applications with single thread, multicore and manycore architectures. Resumo. As matrizes de coocorrência são artefatos computacionais utilizados em aplicações como a construção de modelos de representação, em tarefas tı́picas de NLP (Natural Language Processing) como a tradução por máquina, na mineração de texto, na classificação de documentos. Sua construção é bastante onerosa computacionalmente, porque demanda a análise da relação de coocorrência entre os termos existentes num corpus, podendo exigir bastante memória para armazenar essa relação, caso o vocabulário, a janela de contexto e o corpus empregados sejam muito grandes. Para contornar essas limitações, nossa solução é baseada numa estrutura de dados do tipo hash, capaz de armazenar de forma eficiente uma matriz inerentemente esparsa de grandes dimensões. Esta solução se adapta facilmente a diferentes arquiteturas, tendo sido implementada e testada em aplicações com arquiteturas single thread, multicore e manycore.
Current Clinical Applications and Challenges of Circulating Tumor Cells

Analysis of circulating tumor cells (CTC) has received enormous attentions for its potential to obtain diverse information of tumors dynamically. Nowadays fast-developing detection technologies facilitate its biological research of tumor dissemination and clinical implications. This review is going to discuss clinical applications of CTC including prognosis and prediction of metastatic progression, surveillance of therapeutic response and identification of therapeutic targets and resistance mechanisms and to further introduce present detection technologies of CTC.