bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bond strength and failure mode of glass fiber posts with different surface treatments prior to silanization: An in vitro comparative study
Authors: Santander-Rengifo Flor M , Castillo-Andamayo Diana E , Tay Lidia Y , López-Gurreonero Carlos , Cornejo-Pinto Alberto , Cervantes-Ganoza Luis A , Cayo-Rojas César F 
Published: November 2022

Abstract

Aim:
The use of chemical agents in the surface treatment of glass fiber posts can improve their bond strength to the root canal. The aim of this study was to assess the bond strength and failure mode of glass fiber posts that received different surface treatments prior to silanization.

Materials and Methods:
In this cross-sectional and in vitro experimental study, 50 human lower premolar roots were randomly divided into five groups and subsequently prepared to receive the cementation of a fiberglass post prior to silanization. They were distributed as group 1 (with 24% hydrogen peroxide), group 2 (with 37% phosphoric acid), group 3 (with 1.23% acidulated phosphate fluoride for 2 minutes), group 4 (with 1.23% acidulated phosphate fluoride for 6 minutes), and group 5 (without pretreatment). After cementation, the roots were sectioned into two discs for each cervical, middle, and apical region. Bond strength was assessed using the push out technique. Adhesive, mixed, and cohesive failure modes were also assessed. For data analysis, ANOVA and Tukey’s post hoc tests were used, as well as Pearson’s chi-square test. A significance of P < 0.05 was considered in all statistical analyses.

Results:
When comparing the bond strength of root regions, significant differences were obtained in groups pretreated with phosphoric acid (P = 0.018) and acidulated phosphate fluoride for 2 and 6 minutes (P = 0.001 and P = 0.000, respectively). Furthermore, significant differences were obtained between posts treated only with silane and those that received phosphoric acid pretreatment (P = 0.006) and acidulated phosphate fluoride for 6 minutes (P = 0.001). Significant association of mixed failure mode was observed with hydrogen peroxide (P = 0.014) and phosphoric acid (P = 0.006) pretreatments. Cohesive failure was significantly associated with acidulated phosphate fluoride pretreatment for 2 minutes (P = 0.032) and with posts that did not receive treatment prior to silanization (P = 0.000).

Conclusion:
Posts treated only with silane and pretreated with hydrogen peroxide and acidulated phosphate fluoride for 2 minutes presented significantly higher bond strength with respect to those pretreated with phosphoric acid and acidulated phosphate fluoride for 6 minutes. However, acidulated phosphate fluoride for 2 minutes and silane were associated with a better bonding type.
Alligators in the Sewers
Authors: Mikos Éva 
Published: November 2022

The aim of the present study is to provide an overall picture of the nature of urban folklore using the “Alligators in the Sewers” urban legend type circulated in both the Hungarian and international press and by word of mouth. While contemporary legends have attracted only sporadic attention in Hungarian research to date, by illustrating the historical development of this legend type the aim of the present case study is to demonstrate how the phenomenon has existed in the Hungarian press for almost 200 years.
The present study attempts to identify the kind of opportunities for interpretation offered by these stories in the field of folkloristics; the extent to which they are relevant beyond their literal meaning; and the ways in which they shed light on modern-day understandings of the world. Giant reptiles that are not indigenous to Europe are terrifying to the average individual, while at the same time they evoke a yearning for the natural world in city dwellers trapped amid concrete walls. Urban sewers and storm drains hold similar terrors: on the one hand, they are there to remove filth and symbolize the more unsavory aspects of urban life, while on the other hand their hidden presence beneath the ground offers ample opportunity for the projection of numerous fantasies. Animals that lurk in the sewers, from where they emerge to attack people, are manifestations, contained within simple, traditional narrative frameworks, of the murkiness of highly structured societies and of the sense of danger that this opacity engenders in us. The emergence and persistence of such stories can be attributed to a number of social practices, such as circuses, sideshows, and the keeping of reptiles as pets, along with the respective press reports and rumors.
Studies on Synergistic Effects of Different Bio-Active Chemicals on Nuclearpolyherosis (Grasserie Disease) of Silkworm, Bombyx mori Linnaeus
Authors: Deb Suman Deb , Sinha Ajit Kumar , Saha Atul Kr , Hazra Niladri Hazra 
Published: November 2022

Purpose: Larval hind gut of multivoltine breed silk worm Bombyx mori L. (Nistari) was studied in both favourable and unfavourable rearing seasons after Grasserie caused by Bombyx mori Nuclearpolyherosis Virus (BmNPV) using Histological Analysis, Scanning Electron Microscopy and Transmission Electronic Microscopy.
Methodology: Chemical treatments using various bio active chemicals: Curcumin, Allicin and Azadirachtin were administered to minimize the extent of damage.
Findings: The present study clearly indicates that Azadirachtin is more effective in comparison to its other counterparts and it is the major finding of this extensive study.
Unique Contribution to Theory, Policy and Practice: The uniqueness of this type of bio chemical control of Grasserie disease which is not only a cost effective and eco-friendly technique, but also it is less hazardous and simple controlling procedure of Grasserie. Therefore, this extensive study may help the stakeholders to step ahead on the progression of sustainable agriculture while avoiding crop loss by means of cost-effective pathogen management technology.
Study of Low-Frequency Electromagnetic Ion-Cyclotron Wave for Ring Distribution in Magnetosphere of Saturn
Authors: Haridas Annex Edappattu , Pandey Rama Shankar 
Published: November 2022

Magnetic cyclotron waves were discovered by the Cassini-Huygens spacecraft in Saturn's atmospheric torus’ magnetic layer. They are left-handed and propagate at a minor angle to the ambient magnetic field in most areas because their frequency is close to the frequency of the aqua ions. The ion cyclotron instability caused by Saturn's neutral cloud ions helps explain their formation. They can be classified as n = 2 mode fluctuations because of the ion-ring distribution. We planned the characteristics of these waves in advance of starting this project. Our dispersion growth rates are evaluated using kinetic method analysis as well. The results were calculated and explained for the exemplary values of the magnetosphere parameters suitable for Saturn. Another potential free energy source for ion cyclotrons is temperature anisotropy. Instead of the standard Maxwell distribution, a ring distribution is employed in this study. The focus of this research is EMIC waves’ oblique propagation in the magnetic field, which changes their temperature anisotropy, ion energy density, and propagation angle. The interaction of relativistic particles with ion cyclotron waves is also included in this extension. EMIC wave size decreases with the increasing density of particles, as shown by a numerical study. A comparison of planetary studies based on data from space plasma environments and magnetospheric systems produced these results.
HIGHLIGHTS

Temperature anisotropy - free energy source for Ion Cyclotron waves
EMIC wave size decreases with the increasing density of particles
Saturn's neutral cloud ions helps the formation of ion cyclotron instability

GRAPHICAL ABSTRACT
Intravenous Iron Preparations for Patients Undergoing Elective Surgery: A 2022 Update
Authors: Hill Shannon , Severn Melissa 
Published: November 2022

For adults who are iron deficient before elective surgery, patients who received IV iron supplementation may have greater increases in hemoglobin and ferritin concentrations, similar or lower lengths of stay in hospital, and similar quality of life measures, functional outcomes, and rates of adverse events, compared to patients who did not receive IV supplementation. The findings were mixed for the rate of blood transfusions.
For adults who are iron deficient before elective surgery, patients who received IV iron supplementation may experience similar changes in hemoglobin levels, quality of life scores, or number of adverse events when compared to patients who received oral iron supplementation. The findings were mixed regarding the risk of blood transfusions.
No studies were found on the cost-effectiveness of IV iron preparation therapy for patients who are iron deficient undergoing elective surgery that met the criteria for this review.
One guideline recommends the use of IV iron supplementation for patients with iron deficient anemia when surgery is less than 8 weeks away, patients are unable to tolerate or absorb oral iron supplementation, or for patient with suboptimal hemoglobin levels.
DE QUE VALE O DIPLOMA UNIVERSITÁRIO NO BRASIL? A VISÃO DE FORMANDOS EM UM CURSO DE GRADUAÇÃO EM ADMINISTRAÇÃO EM UMA UNIVERSIDADE FEDERAL DO BRASIL
Authors: Cardoso Bermann Juanice , Freddo Fleck Carolina , Garcia Machado Nunes Alessandra 
Published: November 2022

O objetivo deste estudo foi identificar a expectativa pessoal e profissional na obtenção do diploma para o graduando em Administração, bem como verificar os motivos da escolha do curso de Administração e os objetivos dos acadêmicos no que diz respeito à vida profissional após a formatura, tendo como referência outras pesquisas que estudaram a transição universidade-trabalho, as transformações no mundo do trabalho nos últimos tempos e a dificuldade de inserção no mercado. A população foi composta por 31 estudantes cursando o último semestre de Administração na Universidade Federal do Pampa – Campus Santana do Livramento/RS/Brasil. Para alcançar os objetivos propostos, foi aplicado um questionário contendo perguntas fechadas e abertas sobre a escolha do curso, a motivação para cursar a graduação, as dificuldades encontradas e as expectativas quanto ao futuro e a inserção no mercado de trabalho. Os dados foram analisados por meio de estatística descritiva e seus resultados demonstraram que mesmo não sendo a primeira opção de curso para a maioria dos respondentes, há um elevado nível de satisfação com a qualidade do curso, bem como dos docentes. Foi identificada expectativa e otimismo quanto à inserção profissional e a estabilidade financeira após a conclusão da graduação, no entanto, poucos relacionaram os seus interesses pessoais, com as reais possibilidades oferecidas pelo mercado. Confirma-se, portanto, as teorias já evidenciadas em outros estudos que mostraram que a conclusão de uma graduação vai além de o alcance de uma vaga de trabalho formal, envolve a questão da realização pessoal, da independência financeira e da socialização.
Análise paramétrica das principais variáveis de projeto na área de aço e na capacidade resistente de pilares, vigas e lajes em concreto armado
Authors: Germano Nando Maia , Silva Nicoletti Renato , Almeida João Paulo Boff 
Published: November 2022

Elementos em concreto armado estão presentes em praticamente todas as construções. Considerando isso e a alta nos custos dos materiais de construção, é de extrema importância a sensibilidade do engenheiro no projeto em concreto armado quanto às variáveis de que ele depende, as quais são fundamentais para garantir um projeto eficiente. Nesse contexto, o presente trabalho teve como objetivo investigar, por meio de análises paramétricas, a influência das principais variáveis de projeto na área de aço e na capacidade resistente de pilares, vigas e lajes em concreto armado. Foram analisados 28 casos de pilares, 32 de vigas e 30 de lajes maciças. Nos elementos submetidos predominantemente à flexão (lajes e vigas), a altura foi o parâmetro que exerceu maior influência no momento resistente e na área de aço. Por sua vez, a classe do concreto pouco afetou o momento resistente e a área de aço necessária. Além disso, a largura da viga mostrou sensibilidade intermediária. Especificamente nas lajes, o engastamento dos bordos proporcionou uma redução do momento positivo e da área de aço positiva, além de reduzir as deflexões da laje. Porém, ele acarreta em maior consumo de aço, visto que se faz necessária armadura longitudinal negativa. Quanto aos pilares, se o objetivo for diminuir a área de aço de armadura longitudinal, há um limite até o qual aumentar a resistência do concreto surte resultados. Por sua vez, caso o intuito seja aumentar a capacidade resistente do pilar, deve-se trabalhar com concretos com maiores classes de resistência. Além disso, verificou-se que o comprimento destravado do pilar acarreta em significativas variações na taxa de armadura.
Quantifying the drivers of surface ozone anomalies in the urban areas over the Qinghai-Tibet Plateau
Authors: Yin Hao , Sun Youwen , Notholt Justus , Palm Mathias , Ye Chunxiang , Liu Cheng 
Published: November 2022

Abstract. Improved knowledge of the chemistry and drivers of surface ozone over the
Qinghai-Tibet Plateau (QTP) is significant for regulatory and control
purposes in this high-altitude region in the Himalayas. In this study, we
investigate the processes and drivers of surface ozone anomalies (defined as deviations of ozone levels relative to their seasonal means) between 2015 and 2020 in urban areas over the QTP. We separate quantitatively the contributions of anthropogenic emissions and meteorology to surface ozone anomalies by using the random forest (RF) machine-learning model-based meteorological normalization method. Diurnal and seasonal surface ozone anomalies over the QTP were mainly driven by meteorological conditions, such as temperature, planetary boundary layer height, surface incoming shortwave flux, downward transport velocity and inter-annual anomalies were mainly driven by anthropogenic emission. Depending on region and measurement hour, diurnal surface ozone anomalies varied over −27.82 to 37.11 µg m−3, whereas meteorological and anthropogenic contributions varied over −33.88 to 35.86 µg m−3 and −4.32 to 4.05 µg m−3 respectively. Exceptional meteorology drove 97 % of surface ozone non-attainment events from 2015 to 2020 in the urban areas over the QTP. Monthly averaged surface ozone anomalies from 2015 to 2020 varied with much smaller amplitudes than their diurnal anomalies, whereas meteorological and anthropogenic contributions varied over 7.63 to 55.61 µg m−3 and 3.67 to 35.28 µg m−3 respectively. The inter-annual trends of surface ozone in Ngari, Lhasa, Naqu, Qamdo, Diqing, Haixi and Guoluo can be attributed to anthropogenic emissions in 95.77 %, 96.30 %, 97.83 %, 82.30 %, 99.26 % and 87.85 %, and meteorology in 4.23 %, 3.70 %, 2.17 %, 3.19 %, 0.74 % and 12.15 % respectively. The inter-annual trends of surface ozone in other cities were fully driven by anthropogenic emission, whereas the increasing inter-annual trends would have larger values if not for the favorable meteorological conditions. This study can not only improve our knowledge with respect to spatiotemporal variability of surface ozone but also provide valuable implications for ozone mitigation over the QTP.
KINERJA DINAS PERHUBUNGAN KOTA DENPASAR DALAM PELAKSANAAN AREA TRAFFIC CONTROL SYSTEM
Authors: Hery Priyana I Dewa Putu , Adiwidya Yowana I Made , Umbas Ronald 
Published: November 2022

Penelitian ini bertujuan untuk mengetahui apakah Pelaksanaan Program ATCS berpengaruh terhadap kinerja Dinas Perhubungan Kota Denpasar pada Kantor Unit Pelaksana Teknis Pelayanan Transportasi Darat. Peneliti menggunakan pendekatan deskriptif kualitatif. Untuk mengumpulkan data peneliti melakukan wawancara dan observasi secara langsung. Pertanyaan-pertanyaan yang diberikan kepada responden dibuat berdasarkan lima indikator yang telah ditentukan. Analisis terhadap data yang dikumpulkan menunjukkan bahwa penelitian pelaksanaan program ATCS di Kota Denpasar mampu meningkatkan kinerja
Exploring Saudi University English Teachers' Perceptions of Global Englishes
Authors: Aldawsari Mohammed 
Published: November 2022

This paper aims to explore the paradigm of Global Englishes through the perceptions held towards it by university English teachers in Saudi Arabia. Due to reasons, such as globalization and colonization, the presence of English can be found in all countries throughout the world. Some countries, such as Saudi Arabia have not yet fully institutionalized the language which places them in the expanding circle, where English is currently seen and pedagogically taught as a foreign language. There are currently more non-native speakers of English than native English speakers worldwide, presenting a wide array of English varieties, influenced by native languages and local dialects. International teachers and students of English have presented a common theme and that is their desire to speak English with native like proficiency. Thus, in turn, the current method through which English language teaching takes place is typically a standard nativism approach using American or British English as a benchmark. The concern is that the standard nativism model may not accurately reflect the variety of English that is practiced and used specifically in Saudi Arabia in the case of this study, nor within the world as countless people use English as their second or even third language. Global Englishes offers a diversified and inclusive way of accepting varieties of English and it offers a framework for English to be taught within. The current study sought to explore the perceptions held by Saudi university teachers towards Global Englishes. The study made use of focus group interview discussions with university English teachers in Saudi Arabia from which three dominant themes emerged through thematic analysis. Firstly, it was clear that the teachers were not fully aware of the notion of Global Englishes before the study, and therefore did not realize that alternative methods of English language teaching were being developed to include and accept different varieties of English. In addition, the teachers did not view Global Englishes as a legitimate framework for teaching English, for reasons such as it navigates from the “pure” form of standard English. In conclusion, the teachers seemed to be some-what apprehensive about incorporating Global Englishes into their teaching curriculum. Similar results have been found in other studies of a comparable nature.
A Game Theory-based Analysis of Trade And Policy Between China and Brazil In Electrical And Mechanical Products
Authors: Yan Hongyu 
Published: November 2022

China and Brazil are the two largest developing countries in the world in terms of land area with rapid economic development and huge economic potential advantage. Since the resumption of trade between China and Brazil in 1972, the economic and trade relations between the two countries have grown considerably through the joint efforts of both sides . This paper analyses the current situation of trade between China and Brazil by analysing the relevant trade data and applying the game theory approach to analyse the trade competition and cooperation between the two countries under the epidemic. This paper will focus on the trade situation of electrical and mechanical products and make relevant suggestions to address the current problems.
Challenges and Ways of Integrating Mental Health Education into Ideological and Political Education in the New Era
Authors: Fei Sisi 
Published: November 2022

Education is the cornerstone of social progress and national revitalization. The Chinese people deeply understand the fact that a country is strong when education is prosperous and a country is strong when education is strong. It can be seen that education plays a vital role in the future development of China. With the continuous development of social economy and the deepening of the reform system of college teaching, there are -certain problems in the process of ideological and political education in colleges and universities. For the various problems existing in the education, it is no longer only the problem of ideology and morality, and has an important connection with the psychological health of college students. To promote college students to establish correct ideological concepts, we should organically combine college students' psychological education with ideological and political education, which is the inevitable requirement to promote the healthy development of college students' body and mind, and is also the key content of the current ideological and political education work in colleges and universities. At present, "What to cultivate, how to cultivate and for whom to cultivate" is the new problem facing higher education. College students are in the process of forming their outlook on life and values. In the process of educating students, higher education institutions must strengthen psychological health education in order to truly achieve the purpose of educating people. At the same time, college students are affected by the social environment and employment pressure, presenting more and more psychological problems, if not timely guidance, will produce a variety of adverse consequences. Therefore, ideological and political education must be organically integrated with mental health education in order to truly realize the purpose of moral education.
The Realization Path and Significance of Rural Cultural Construction based on Marx's Needs Theory
Authors: Zhang Han 
Published: November 2022

The rural vitalization strategy is an important measure for us to build a new socialist countryside in the new era and achieve common prosperity. It is a major rural construction strategy put forward by our Party standing at the height of The Times. Rural revitalization is a comprehensive revitalization including rural cultural revitalization, cultural revitalization is the soul of rural revitalization. The revitalization of rural culture helps the masses to establish a good cultural confidence, but also contributes to the steady progress of the whole country. We must attach importance to the innovative development of rural culture, actively and steadily promote the construction of rural culture.
Ibuprofen Cocrystal Preparation and Structure Study Using Fluorescence Spectrometry
Authors: Zhao Dewei , Ma Hua , Qiao Ning 
Published: November 2022

Ibuprofen (IBU) was cocrystallized with nicotinamide (NIC), saccharin (SAC) and succinic acid (SUC) using solvent evaporation method and grinding method. Ibuprofen cocrystals were characterized by FTIR, XRD to analyze crystalline structure. Fluorescence spectrometer (FS) was also applied to verify the formation of ibuprofen cocrystals. The formation of IBU-NIC cocrystal, IBU-SAC cocrystal and IBU-SUC cocrystal were demonstrated by IR character peaks shift and new XRD character peaks. Solution method can produce IBU cocrystal with higher purity. The change of maximal fluorescence emission wavelength and strength can be used to verify the formation of cocrystal.
Estados Unidos: Geopolítica Unilateralista e Democracia Ausente
Authors: Valencia Adrian Sotelo 
Published: November 2022

A supremacia unilateralista dos Estados Unidos, no marco de uma crescentee iminente perda de hegemonia política e até certo ponto militar, acentua uma das características das relações internacionais e interestatais agudizada pela crise políticae social interna no marco de um sistema oligárquico de “democracia indireta” em que o voto popular e cidadão desempenha papel secundário. Essa ausência de democracia, junto à política protecionista da administração Trump, submergiu esse país em um dilema num mundo multilateral e policêntrico.