bluuebunny/crossref_metadata_2025_split huggingface dataset:
Green synthesis and characterization of zinc oxide nanoparticles using bush tea (Athrixia phylicoides DC) natural extract: assessment of the synthesis process.
Authors: Kaningini Gabriel Amani , Azizi Shohreh , Nyoni Hlengilizwe , Mudau Fhatuwani Nixwel , Mohale Keletso Cecilia , Maaza Malik 
Published: October 2021

Background: Nanoparticles are globally synthesized for their antimicrobial, anti-inflammatory, wound healing, catalytic, magnetic, optical, and electronic properties that have put them at the forefront of a wide variety of studies. Among them, zinc oxide (ZnO) has received much consideration due to its technological and medicinal applications. In this study, we report on the synthesis process of ZnO nanoparticles using Athrixia phylicoides DC natural extract as a reducing agent. Methods: Liquid chromatography–mass spectrometry (LC-MS) was used to identify the compounds responsible for the synthesis of ZnO nanoparticles. Structural, morphological and optical properties of the synthesized nanoparticles have been characterized through X-ray diffraction (XRD), Ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Results: LC-MS results showed that different flavonoids and polyphenols, as well as Coumarin, an aromatic compound, reacted with the precursor to form ZnO nanoparticles. XRD and UV-Vis analysis confirmed the synthesis of ZnO nanoparticles, with a spherical shape showed in SEM images. The quasi-spherical ZnO crystals had an average crystallite size of 24 nm. EDS and FTIR analysis confirmed that the powders were pure with no other phase or impurity. Conclusions: This study successfully demonstrated that the natural plant extract of A. phylicoides DC. can be used in the bio-reduction of zinc nitrate hexahydrate to prepare pure ZnO nanoparticles, thus, extending the use of this plant to an industrial level.
An impact of the first and second-largest shareholders on a catering effect: evidence from Poland
Authors: Pieloch-Babiarz Aleksandra 
Published: October 2021

Motivation: Dividend pay-out is a frequently undertaken research issue. However, there is no study on the impact of concentrated ownership on adjustment of dividend amount to investor sentiment for pay-outs. The paper contribute to the literature by filling the research gap regarding the catering effect in the context of principal-principal agency conflict and type II agency costs, monitoring hypothesis and expropriation hypothesis.
Aim: The aim of the article is to investigate an impact of the first and second-largest shareholders on an adjustment of dividend pay-outs to investor sentiment for dividends. To achieve the aim, two hypotheses have been formulated, i.e. H1: if the first-largest shareholder is a strategic investor, a catering effect weakens; H2: an existence of significant second-largest shareholder moderates the extent to which companies cater to investor sentiment for dividends.
Results: There are three main finding: 1) the number of shares held by the first-largest shareholder is lower in dividend payers, while the number of shares held by the second-largest shareholder is lower in dividend non-payers; 2) listed companies from electromechanical industry sector cater to investor sentiment for dividends; 3) both research hypotheses have not been satisfied.
An attempt to evaluate the level of sustainable development in European Union countries
Authors: Pondel Hanna 
Published: October 2021

Motivation: Sustainable development is a concept of development that arouses keen interest of various entities, is unprecise in many of its assumptions, undoubtedly applicable for the contemporary civilisation as well as the future generations, with effects difficult to measure and interpret, and constitutes a considerable research challenge. The research on the sustainability level of particular countries or regions have still been insufficient, as well as, due to varying research methods and research scopes, difficult to compare and causing difficulties in clear determination of the scale and progress in implementing the assumptions of this concept of development.
Aim: To evaluate the level of sustainable development in European Union countries in 2009 and 2018 with the application of the taxonomic method.
Results: In the vast majority of European Union countries, the value of the synthetic sustainable development indicator was higher in 2018 as compared to 2009. Only in the case of three countries the value decreased. The improvement of the indicator was driven mainly by the economic aspect. When evaluating the sustainable development level of European Union countries in 2009 and 2018, it may be claimed that each time the majority of countries noted a low level of sustainable development: a low and very low synthetic sustainable development indicator was demonstrated by 67% and 56% respectively of the entities under evaluation. In the group of countries with a very high aggregate indicator, the changes in 2018 as compared to 2009 were not significant; only the Netherlands and Slovenia were in the group of countries with a high synthetic sustainable development indicator (in 2018 — with a very high indicator). Certainly, it should be seen as positive that the group of countries with a very low aggregate indicator shrank considerably: from 17 in 2009 to eight in 2018. Among the countries representing that group in 2018 were only those which belonged to it also in 2009. As results from the conducted analysis, the countries which have attained a very high or high level of sustainable development maintain this status.
Determinant of educational infrastructure development in conditions of regional economy transformation and digitalization
Authors: Revko Alona 
Published: October 2021

Motivation: In the context of sustainable development, it is objectively conditioned to base the social infrastructure development on the transformations and digitalization of the regional economic space. The transformation of the potential of social infrastructure involves changing not only the quantitative parameters of its components, but also transforming the objects of the infrastructure complex of the region, restructuring the connections between them and moving to a qualitatively new level of development. The determinant of social infrastructure that provides quality human development is education. High-quality educational infrastructure provides comprehensive human development through the formation of a complex of services necessary for the qualitative development of human potential.
Aim: The purpose of the research is to analyse the structural and dynamic features of the educational component of social infrastructure at the meso level in Ukraine and Poland, to work out practical recommendations for its transformation and digitalization.
Results: An author’s methodology for assessing the educational infrastructure development is developed. The methodology includes, in particular, the calculation of the synthetic index for the educational infrastructure development using the method of linear ordering by Julian Perkal. The negative trend of decreasing in the number of Ukrainian educational institutions between 2010 and 2020 is detected. It is established that the dynamics of the number of students in vocational schools and higher education institutions in Ukraine reflects, first, the demographic trends that have taken place and are taking place in the country, as well as society’s attitude to vocational and higher education. In addition, the rating of Ukrainian and Polish regions according to the level of the educational infrastructure development is created.
Prevalence, risk factors and adverse pregnancy outcomes of second trimester bacterial vaginosis among pregnant women in Bukavu, Democratic Republic of the Congo
Authors: Mulinganya Guy , De Vulder Annelies , Bisimwa Ghislain , Boelens Jerina , Claeys Geert , De Keyser Karen , De Vos Daniel , Hendwa Erick , Kampara Freddy , Kujirakwinja Yvette , Mongane Jules , Mubalama Innocent , Vaneechoutte Mario , Callens Steven , Cools Piet 
Published: October 2021

BackgroundBacterial vaginosis (BV) is the most common gynecological condition in women of reproductive age and associated with adverse pregnancy outcomes. In the Democratic Republic of the Congo (DRC), neonatal mortality rate is as high as 2.8 percent with preterm birth (PTB) and low birth weight (LBW) as leading causes. Because no studies have addressed BV in DRC, we aimed to investigate the prevalence of BV, the risk factors and the association between BV and adverse pregnancy outcomes in a population of pregnant women from Bukavu, DRC.MethodsA total of 533 pregnant women in the second trimester of pregnancy were recruited in the Provincial Reference Hospital of Bukavu, DRC, between January and October 2017, and followed until delivery. Clinical and sociodemographic data of mother and newborn, and data on (vaginal) hygiene practices, sexual behavior and reproductive history were collected. BV was diagnosed by Nugent scoring of Gram-stained vaginal smears. Two multivariate regression models were built to identify risk factors for BV and to investigate BV as a risk factor for adverse pregnancy outcomes.ResultsThe prevalence of BV was 26.3% and approximately half of the women with BV were asymptomatic. Independent risk factors for BV were the use of alternatives to water for intravaginal washing, concurrent partners, unemployed status, the presence of vaginalCandidaand clay consumption. BV was independently associated with both LBW and PTB of an infant with LBW.ConclusionThe prevalence of BV in Bukavu is high but in line with the global average. BV was associated with adverse pregnancy outcomes in our study population. Hence, research on modifiable risk factor-based interventions to reduce the prevalence of BV, and on screening/treatment of BV during antenatal care should be explored to reduce neonatal mortality and morbidity.
Censors and Public Lands: The Failure of Governance of a Common?
Authors: Bresolin Zoppelli Davide 
Published: October 2021

Abstract
Nowadays, a small part of the worldwide population, under the aegis of property on some commons, can find a way to increase their riches, intensifying the conflicts inside the society and damaging the environment. This is the “dark side” of globalization: through this phenomenon, humans economically and socially united most of our planet, simultaneously emphasizing the fragmentation that lies under this apparent unification. This conflict, however, is not between law and society, but it is inside the latter, where the only possible way to bridge the gap seems – mostly – to be through philanthropy. This work wants to find a possible enlightenment through the study of the regulation of the roman’s lands (ager publicus), which were granted under a payment: thus, they were subjected to revocation. This rule was strengthened for the most fruitful lands through the recognition of a supervisory power in the hands of the censors, census officers and controllers of the citizen’s morality, whose decadence was sanctioned with the loss of the right to vote. It was them who could decide to whom give these lands in lease through a public auction, never considering – through a direct sanction as revocation – the ethics of the winners, thus allowing to increase their assets and consequentially the social instability.
The Sexual Body as a Meaningful Home: Making Sense of Sexual Concordance
Authors: Niineste Rita 
Published: October 2021

AbstractThe past 20–30 years have provided plenty of new empirical data on women’s sexuality, a topic often theorised as puzzling and unexplainable. In recent discussions, a controversial issue has been the phenomenon of sexual concordance, i.e. the correlation between the self-reported, subjective assessment of one’s sexual arousal and the simultaneous bodily response measured directly on the genitals. In laboratory-based assessments, sexual concordance has been observed to be on average substantially lower in women than in men, although the reasons for the considerable gender difference are still open to debate. Drawing on a phenomenological approach to culture-dependent meaning-formation and on feminist social theory of everyday sexuality, I argue that the reasons behind women’s low sexual concordance can be found neither in their minds nor their bodies but in the way meaning-making processes function in human sexual experiences. Women’s first-person perspectives on their own sexuality have historically played only a marginal role in the creation of socially endorsed sexual meanings, yet these shared meanings have a profound influence on how individuals make sense of their bodily experiences in sexual situations.
Effect of adding dodecanol as modifier to N,N,N′,N′-tetra-n-hexyl-3,6-dithiaoctane-1,8-diamide silica-based adsorbent on the adsorption behaviors of platinum-group metals and other metals from simulated high-level liquid waste
Authors: Osawa Naoki , Kim Seong-Yun , Ito Tatsuya , Wu Hao 
Published: October 2021

Abstract
To adsorb and separate platinum-group metals efficiently from simulated high-level liquid waste, two adsorbents, N,N,N′,N′-tetra-n-hexyl-3,6-dithiaoctane-1,8-diamide (THDTODA)/SiO2-P and (THDTODA + dodecanol)/SiO2-P, were prepared by impregnation of THDTODA with or without dodecanol into macroporous silica/styrene–divinylbenzene copolymer composite particles SiO2-P. The effect of the addition of dodecanol to THDTODA fixed silica-based adsorbents on the separation of platinum-group metals and other metals was evaluated by batch adsorption and chromatographic separation experiments. THDTODA/SiO2-P adsorbed Ru(III) and Rh(III) more than (THDTODA + dodecanol)/SiO2-P did in concentrated HNO3 solution. From the calculated thermodynamic parameters, dodecanol was considered to have little effect on the temperature dependence of the adsorptions of Ru(III), Zr(IV), Mo(VI), and Re(VII) onto the THDTODA adsorbents. Furthermore, in the results of column chromatography experiments, the effects of dodecanol addition on the separation properties were observed for Ru(III), Zr(IV), and Mo(VI), but little effect was observed for Pd(II) and Re(VII).
Use of polypropylene fibres to increase the resistance of reinforcement to chloride corrosion in concretes
Authors: Raczkiewicz Wioletta 
Published: October 2021

AbstractConcrete with the addition of polypropylene fibres is more cohesive and has better adhesion, deformability and tightness because the fibres “bind” the concrete matrix together and prevent large pores from forming in the concrete mix and limit the formation and spread of shrinkage cracks. Therefore, it can be assumed that polypropylene fibres affect the effectiveness of the concrete cover as a layer protecting steel bars against corrosion. This article presents the results of tests allowing us to estimate the effect of addition of polypropylene fibres on the reduction of reinforcing bars corrosion in concrete caused by the action of chlorides. Evaluation of the degree of corrosion of the reinforcement was analysed using the electrochemical polarisation galvanostatic pulse technique. The use of such a method allowed for the quantitative estimation of the effect of the addition of polypropylene fibre on the reduction of corrosion activity of the reinforcement in concrete.
Knock-Down of Heterogeneous Nuclear Ribonucleoprotein A1 Results in Neurite Damage, Altered Stress Granule Biology, and Cellular Toxicity in Differentiated Neuronal Cells
Authors: Anees Amber , Salapa Hannah E. , Thibault Patricia A. , Hutchinson Catherine , Hammond S. Austin , Levin Michael C. 
Published: October 2021

AbstractHeterogeneous nuclear ribonucleoprotein A1 (hnRNP A1) is an RNA binding protein (RBP) that is localized within neurons and plays crucial roles in RNA metabolism. Its importance in neuronal functioning is underscored from the study of its pathogenic features in many neurodegenerative diseases where neuronal hnRNP A1 is mislocalized from the nucleus to the cytoplasm resulting in loss of hnRNP A1 function. Here, we model hnRNP A1 loss-of-function by siRNA-mediated knock-down in differentiated Neuro-2a cells. Through RNA sequencing (RNA-seq) followed by gene ontology (GO) analyses, we show that hnRNP A1 is involved in important biological processes, including RNA metabolism, neuronal function, neuronal morphology, neuronal viability, and stress granule (SG) formation. We further confirmed several of these roles by showing that hnRNP A1 knock-down results in a reduction of neurite outgrowth, increase in cell cytotoxicity and changes in SG formation. In summary, these findings indicate that hnRNP A1 loss-of-function contributes to neuronal dysfunction and cell death and implicates hnRNP A1 dysfunction in the pathogenesis of neurodegenerative diseases.
Vergente mundi vespere
Authors: Andrea Kovács 
Published: October 2021

L’hymnaire du bréviaire conservé à la Bibliothèque Batthyánaeum de Gyulafehérvár, copié au tournant des 14–15e siècles, donne (avec l’inscription De sancto rege Stephano) le texte d’un hymne au roi Saint-Étienne (à l’incipit Exsultet gens celebris). Contrairement à cette pièce unique, à cet hymne à l’incipit de Vergente mundi vespere l’on connaît deux parallèles. L’un est localisé dans un diurnal du pays de Zips (15e siècle, Hongrie royale, aujourd’hui en Slovaquie), l’autre dans un bréviaire conservé à Sitten (Sion, Suisse). Le codex de Sitten fournit (avec l’inscription Historia sancti Ladislai) in extenso l’office Fons aeternae pietatis, avec l’hymne Vergente mundi vespere et un antiphone inconnu (Sancte Ladislae de radice stirpis).Comment expliquer la présence dans le codex de l’évéché de Sitten de l’office Saint Ladislas? Le bréviaire fut sans doute commandé par l’italien Andreas de Benzis de Gualdo, gouverneur apostolique du diocèse de 1418 à sa mort (1437) et évêque de Sitten après 1431. Avant ces dates, il avait été évêque de Spalato (après 1389; à Venise, aujourd’hui Split, Croacie), gouverneur du diocèse d’Eger et abbé de Zalavár (après 1408), archévêque d’Eger (après 1409) et archévêque de Kalocsa (après 1413). Son séjour en Hongrie et sa position élevée dans la hiérarchie ecclésiastique explique pourquoi il a tenu à emporter avec lui et à faire copier les textes liturgiques du saint hongrois le plus vénéré. La provenance, le rite et le sort ultérieur du codex renfermant l’hymne Vergente mundi vespere et l’antiphone Sancte Ladislae de radice stirpis restent un mystère. La question de savoir la provenance et le rite de l’hymnaire rattaché ultérieurement au bréviaire du pays de Zips reste également ouverte.
Desarrollo de un modelo de planeación financiera para una compañía de alimentos utilizando simulación Monte Carlo
Authors: Delgado-Vélez Luis David 
Published: October 2021

El objetivo es desarrollar un modelo de planeación financiera que permita calcular las ganancias probables de una compañía de alimentos en Colombia, en un horizonte temporal de seis años. La metodología utilizada es el Valor Presente Neto de sus flujos de caja libre, calculados a partir de 38 variables de entrada y de proceso que recogen el aspecto macroeconómico, las políticas financieras y los estados contables. Se realizaron 10.000 iteraciones con la técnica de simulación Montecarlo. Los resultados de la simulación indican que sus ganancias probables están entre $278.293 millones y $449.934 millones con un nivel de confianza del 90%. El análisis de sensibilidad del plan financiero permite concluir que la compañía debe reformular sus políticas financieras relacionadas con la administración del capital de trabajo, dado que la cartera y principalmente los inventarios tienen una influencia negativa sobre el VPN, según los coeficientes de regresión.
Biografía mediática de la apropiación de medios de comunicación y TIC en I.E. en Cartago - Colombia
Authors: Badillo-Mendoza Miguel Ezequiel , Vélez-Ortiz Gloria Patricia , Salgado Quintero Andrés Felipe 
Published: October 2021

Se presentan resultados del proyecto de investigación, mapa de conocimiento del uso de medios de comunicación en instituciones educativas de básica y media realizado en Cartago, Colombia en la I.E. (Institución educativa) GABO, la I.E Ciudad Cartago y la I.E Antonio Holguín Garcés. La metodología aplicada fue cualitativa y se utiliza la Investigación Acción Participativa para la construcción de biografías mediáticas a modo de síntesis de resultados. Se identifica una desarticulación entre las políticas públicas e iniciativas del estado a nivel nacional con las dinámicas regionales, un interés particular de la Secretaria de Educación municipal en las acciones por la calidad educativa a nivel local y una postura positiva, crítica y significativa en el papel de las TIC y los medios de comunicación en los procesos de aprendizaje en los estudiantes.
Maternal and Neonatal risk factors in retinopathy of prematurity: A study from coastal city in south India
Authors: B Anupama , Jain Rashmi , S Rashmi , Hegde Vidya , Sudhir Shyam 
Published: October 2021

Preterm babies often suffer from various systemic illnesses and struggle for survival in the neonatal intensive care unit (NICU). These preterm babies are at risk of developing ROP which is a potentially blinding condition. The presence of predisposing maternal and neonatal factors contributes for the development of ROP. Determining the association of risk factors with the development of ROP is essential in improving the screening and management of ROP. To determine maternal, neonatal risk factors and influence of retinal immaturity at first screening for development of ROP. Prospective, observational study conducted at a level of 3 PICU & department of ophthalmology. All the preterm infants with gestational age ≤ 37 weeks admitted in NICU were first screened by 2 to 3 weeks of chronological age and followed up till the completion of retinal vascularization and regression of ROP following treatment. The zone of retinal vascularization at first screening and various maternal and neonatal risk factors were noted. Out of 166 babies screened, 18.67% progressed to ROP. Of the 36 babies with immature retina 58% developed ROP, while 7.7% neonates with mature retina developed ROP. Gestational age, birth weight, retina immaturity, respiratory distress syndrome and anaemia of prematurity were statistically significant for ROP.Statistical analysis: Descriptive statistics was used to identify the association of risk factors with the development of ROP. Each risk factor was analyzed by univariate & multivariate logistic regression. Low birth weight, low gestational age, immature retina and neonatal risk factors have a significant influence on the development of ROP. Low birth weight, low gestational age and retinal immaturity are important risk factors for Retinopathy of prematurity.
O deslocamento da prisão em três Comissões Parlamentares de Inquéritos (CPIs) e sua centralidade na conformação de redes criminais transnacionais
Authors: Dias Camila Nunes , Ribeiro Natália Caruso 
Published: October 2021

Este artigo busca analisar as mudanças ocorridas nas dinâmicas criminais nas duas últimas décadas no Brasil, com base nos relatórios de três Comissões Parlamentares de Inquéritos (CPIs) de temas correlatos: Narcotráfico (1999-2000), Tráfico de Armas (2005-2006) e Sistema Carcerário (2007-2008). Argumentamos que a sequência das três CPIs acompanha a dinâmica própria do fenômeno ocorrido no Brasil, em que as prisões passam a se constituir em hubs criminais. Verificamos que a emergência e expansão dos grupos criminosos de base prisional - que no período transbordam os muros das prisões e assumem a centralidade no debate sobre segurança pública - se refletem no deslocamento da discussão das três CPIs: o foco do debate se desloca dos mercados ilícitos das drogas para as dinâmicas prisionais, evidenciando cada vez mais a importância das redes criminais constituídas nas prisões.