bluuebunny/crossref_metadata_2025 huggingface dataset:
Trade and Child Labour in SAARC Countries
Authors: Ab-Rahim Rossazana
Published: February 2021

A review of past studies shows that the studies confine their analysis of trade and child labour in the setting of the trading of homogeneous goods. Hence, the presence study aims to assess the relationship of trade and child labour in South Asian Association for Regional Cooperation (SAARC) countries by incorporating the role of selection of variety or product heterogeneity in child labour demand. In the context of trade in homogeneous and heterogeneous goods, the trade-induced effects are the selection, scale, and technique effects. The panel data analysis is employed to investigate the nexus between trade and child labour over the study period of 1999 to 2019. The results imply that the opening of trade alone will not reduce child labour if it is not accompanied by supportive measures, namely the trade-related effect of child labour, the effect of scale and technique. Therefore, this study suggests that trade liberalization through trade-induced effect would hamper the child labour presence in the emerging markets.
A Systematic Review of Augmented Reality in STEM Education
Authors: Ajit Gloria
Published: February 2021

This study presents a systematic review of the existing literature on the benefits and challenges faced regarding the use of augmented reality (AR) in Science, Technology, Engineering, and Mathematics (STEM) education. Guided by the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) method, a systematic review of the ScienceDirect database identified 19 related studies. Further investigation of these articles resulted in four themes of AR advantages, namely its contribution to learners, the learning outcomes, the interaction of AR, and other benefits. These four themes further produced a total of 16 sub-themes, while the challenges aspect of AR resulted in 5 sub-themes. The most reported benefit of AR is that it stimulates learning achievement. Some observed that the challenges imposed by AR are concerned with marker detection and usability. Several other problems and advantages of AR usage in STEM education were also discovered, which will be discussed in detail. Additionally, the existing gaps of AR study in the STEM education field were identified, and recommendations are therefore presented for future research.
Modelling Nigerian Exchange Rates with Asymmetric GARCH Models
Authors: Oluwadare Ojo O. , Adepoju Adedayo A. , Yaya Olaoluwa S.
Published: February 2021

This work consider the estimation of some naira exchange rate returns by volatility models which include the asymmetric variants, with estimation performed under normally distributed assumption of Generalized Autoregressive Conditional Heteroscedastic (GARCH). The symmetric versions are Riskmetrics, ARCH and GARCH models. Initially, first order serial correlation was observed in the returns series, implying the dependencies of current returns on the immediate past. Of the asymmetric volatility models, the Exponential GARCH (EGARCH) and Asymmetric Power ARCH (APARCH) posed to perform better than the other symmetric forms in the predicting the volatility of naira exchange returns.
Scale elasticity in the presence of integer data: An application to electricity distribution companies
Authors: Amirmohammadi Homeira , Amirteimoori Alireza Amir , Kordrostami Sohrab , Vaez-Ghasemi Mohsen
Published: February 2021

Returns to scale and scale elasticity are two important issues in the field of economics and operations research. Recently, estimating returns to scale and scale elasticity using tools such as data envelopment analysis (DEA) has attracted considerable attention among researchers. The existing approaches to calculate scale elasticity in DEA context, assume all inputs and outputs are real-valued and in this sense, the underlying technology is a continuous set. In many real cases, however, we face input/output measures that are restricted to be integer-valued. Scale properties of frontier points in such cases are interesting and important. In this paper, this problem in integer-valued DEA is studied. The Lagrangian dual formulation of a mixed integer linear programming problem is used to calculate the scale elasticity of a frontier point. To illustrate the real applicability of the theoretical framework, a real case on electricity distribution companies is given.
Factors Affecting Foreign Direct Investment: The Afghanistan Case
Authors: Eryigit Mehmet , Shafaq Abdul Qayum
Published: February 2021

This study examined the factors affecting foreign direct investments (FDI) for the case of Afghanistan. Generally, the literature has focused on the factors affecting direct investments towards developing and underdeveloped countries. The primary purpose of this study is to identify the factors affecting FDI inflow to Afghanistan. Different from previous studies, this study examined the effects of the following factors; globalization indices, gross domestic product, export volume, import volume, and exchange rate (USD/AFN) of Afghani. The factors were determined based on a review of the literature. Regarding the interaction across variables, three different regression models were tested to examine the effects of those factors on FDI inflows to Afghanistan. Ordinary Least Squares estimation was employed. According to the results of the integrated model (the model that covers all exploratory variables), globalization has a statistically significant positive effect on FDI, whereas the gross domestic product (GDP) has a statistically significant negative effect on FDI. When we test the effect of GDP and exchange rate (EXC) jointly on FDI, we find the statistically significant positive effect of those variables on FDI. The results of this study recommend the economy politicians in Afghanistan implement exchange rate policies that promote the FDI and to increase the inflowing of FDI into the country.
Un estudio sobre el valor monetario de los sables japoneses y sus monturas durante el periodo Edo (1603-1868)
Authors: Sala Ivars Marcos Andrés
Published: February 2021

En Japón, desde el periodo Edo (1603-1868), los nihontō o sables japoneses y sus monturas han ocupado una parte importante dentro del mercado del arte nipón. El gran valor que llegan a alcanzar algunas de estas piezas hace que su análisis sea también el estudio de la economía japonesa durante cada uno de los periodos y eras de su historia. Los diferentes sistemas de pago que sustentaban la economía de las clases guerreras quedaron plasmados en los valores de tasación presentes en los origami o certificados de tasación monetaria y catalogación de piezas. Usaremos estos datos como indicadores de la valía del sable japonés para dibujar un mapa de la economía de Japón durante el periodo Edo, y ver en que medida estos objetos han influido en el capital de la nación japonesa.
Building Employer Brand Image for accumulating Intellectual Capital
Authors: Azam Muhammad , Qureshi Jawaid Ahmed
Published: February 2021

The purpose of this research is to explore factors that build Employer Brand Image (EBI) for attracting and retaining intellectual capital comprising human capital too. The impression of an organization as an employer in the mind of current or prospect employees is called EBI. There are certain factors that shape the image of employer as a brand. Literature review suggested that researches, already done, have been carried out in Europe, Australia, and USA. The gap in literature is found that no study has been carried out to explore the social phenomenon of EBI in Pakistan; not even in South Asia. This is exploratory, qualitative, and phenomenological research. Purposive sampling is carried out using Sequential and Emergence-driven sampling technique whereas sampling method is snowballing. Total 14 semi structured interviews are taken from permanent faculty of private universities of Karachi. Numerous themes have been emerged, out of which six are categorized as core factors and the rest of them are sub-factors. Explored core factors include Organizational Culture and Environment, Package of Benefits, Training, Development and Career Progression, Market Value and Prestige, Recognition, and Location. Employers can build good EBI if they are establishing ideal working environment and positive culture, offering competitive package of benefits, providing training, development, and career progression opportunities, have good social recognition and prestige, recognizing employees’ work, and located in nearer, safer and securer area. EBI is important for employers because they can establish huge pool of applicants and social recognition as good employer, which helps picking the best talent that serves as intellectual capital.
Creative agriculture-based economy in horticulture
Authors: Zatrova Iuliia Stanislavovna
Published: February 2021

This article is dedicated to a new trend in agriculture, such as the creative agriculture-based economy on a worldwide scale. The author reveals the prerequisites for the emergence of such economy. The general review is conducted on the variations of creative forms and industries in horticulture. Such trends as peony growing, biofuels, volcanic agriculture, and “Arctic cultivated garden” are the examples of this type of economy. The article draws attention to various types of cooperation, which leads to a positive result. Attention is given to the problematic components of creative agriculture-based economy. The conclusions are made on the fundamentals of creativity in agriculture for achieving positive results. The author’s main contribution consists in substantiation of the concept of creative agriculture-based economy, a new perspective on the creative economy. This article is first to view creative economy in agriculture, as well as to raise the problems of the creative agriculture-based economy and the need for regulation of this process. The foundation of creative agriculture-based economy consisting of the three equivalent platforms: knowledge, morality and creativity is explored. Agriculture is closely interrelated with the environment and food products; the quality of new products and services influences the quality of life, which is relevant worldwide.
Public Sector Information and Open Data: A Focus on Sweden
Authors: Svärd Proscovia
Published: February 2021

Good governance and inclusive development require governments to make their information flows accessible to all citizens. The United Nations Sustainable Development Goal 16 advocates the promotion of peaceful and inclusive societies, with the emphasis being placed on access to government information. Apart from this Sustainable Development Goal, globally, several open-data initiatives and advocates of freedom of information are pushing governments to open up their data flows. Open data are seen as a driver of public service innovation that generates new knowledge and enables the creation of new electronic services. The narrative about open data assumes that the data are within reach of the citizens to explore and to develop new electronic services based on, for example, statistical, mobility, meteorological, judicial and court data to boost national innovation. However, research shows the contrary that open data are still concentrated in the hands of a few people such as politicians, journalists, system developers and data miners. This raises questions about the openness of the data. In Sweden, most of the interactions that citizens have are with the municipalities because they offer a broad range of public services. This is why the researcher argues that to promote awareness and open data usage by ordinary citizens, the Swedish government should work with the municipalities to create platforms for the exploitation of the data and to facilitate the development of technical expertise. If open data are to be inclusive, the data will require the involvement of citizens in the current open-data developments.
A IRMANDADE DO SENHOR DOS PASSOS E A SANTA CASA DE MISERICÓRDIA: HISTÓRIA, CARIDADE E EXPERIÊNCIAS DE URBANIDADE EM PORTO ALEGRE/RS. SÉCULOS XVIII-XIX "The 'Senhor dos Passos' brotherhood and the Holy House of Mercy..."
Authors: Nascimento Mara Regina do
Published: February 2021

Este artigo propõe-se a ser uma colaboração com os estudos dedicados às irmandades religiosas brasileiras, na sua face regional. A linha de pensamento adotada toma a cidade, a experiência urbana e as ditas associações religiosas como instâncias sociais intimamente relacionadas e interdependentes. Durante o século XIX, a irmandade gestora da Santa Casa de Misericórdia em Porto Alegre cumpria um papel fundamental não apenas para a composição material de seu espaço, mas igualmente para conferir-lhe o status de importante cidade dentro do mosaico urbano que compunha o Império brasileiro. Tomando por base o histórico de ações concretas da irmandade, como a construção do Hospital, as iniciativas para a caridade e filantropia e a promoção das festas litúrgicas, este artigo analisa o vínculo indissociável entre o associativismo católico e o estilo de vida urbano dos setecentos e oitocentos. Palavras-chave: Irmandades Religiosas. Santa Casa de Misericórdia. Cultura Urbana.AbstractThis paper intends to collaborate with other works dedicated to the study of brazilian religious brotherhoods, in their regional aspect. The line of thought  adopted takes the city, the urban experience and the religious associations above mentioned as closely related and interdependent social instances. During the XIX century, the brotherhood in charge of the Holy House of Mercy in the city of Porto Alegre played a fundamental role, not just in the material composition of the urban space, but also in giving it the status of an important city within the urban mosaic comprised by the Brazilian Empire. Based on the (historic of) concrete actions of this brotherhood, as were the construction of the Hospital, the creation of a social representation for the notion of charity, and the promotion of liturgic feasts, this article analyses the unbreakable bond between catholic associativism and the urban lifestyle of the XVIII and XIX centuries.Keywords: Religious Brotherhoods. Holy House of Mercy. Urban Culture.
Produção científica sobre o acolhimento nos serviços de saúde na perspectiva cienciométrica
Authors: Seixas Ana Luiza Montalvão , De Oliveira Valéria Gonzaga Botelho , Santos Virginia Ruas , Batista Ana Cecília Dias , Braga Giuliana de Fátima Gonçalves , Da Conceição Ravena Amaral , Silva Karla Talita Santos , Monteiro Sylmara Corrêa , Amaral Bruno de Pinho , Junior Renê Ferreira da Silva
Published: February 2021

Objetivo: Avaliar o nível de conhecimento e sistematização da produção científica vinculada à Política Nacional de Humanização em sua diretriz de acolhimento. Métodos: Realizou-se um estudo cienciométrico entre os meses de setembro e outubro de 2020, tendo como descritor o termo acolhimento nas bases de dados secundários United States National Library of Medicine e na Scientific Eletronic Library Online. Resultados: Foram selecionados 67 artigos sobre acolhimento, o ano de 2014 teve o maior número de publicações, o maior quantitativo de estudos tiveram como foco a Unidade Básica de Saúde e setores hospitalares, seguido de estudos que abordavam o acolhimento no Centro de Atenção Psicossocial, quanto ao local de origem São Paulo, Ceará, Pernambuco e Minas Gerais obtiveram 49% dos 67 artigos relacionados ao acolhimento nos serviços de saúde, 47,7% dos artigos não foram classificados nos estratos qualis, sendo A2 com 11,9% e B1 com 32,8%. Considerações finais: Após dezessete anos da implementação da Política Nacional de Humanização em relação a sua diretriz acolhimento, constou-se que houve produções voltadas mais fortemente à implementação do acolhimento, sobretudo, no cenário da Atenção Primária à Saúde, nesse sentido, houve uma produção limitada em relação às práticas de acolhimento como determina a política.
Third ventricular colloid cyst causing acute hydrocephalus during early pregnancy: Clinical lessons from a case
Authors: Foo Ching Chung , Gallo Pasquale , Kaliaperumal Chandrasekaran
Published: February 2021

Background:

Colloid cysts of third ventricle are rare lesions which may present with symptoms of acute hydrocephalus. We report a case of acute obstructive hydrocephalus secondary to third ventricular colloid cyst and its management during 1st trimester pregnancy.

Case Description:

A 31-years-old lady presented to the emergency department with reduced consciousness. Computed tomography head showed obstructive hydrocephalus and an obstructing lesion near foramen of Monro suggestive of third ventricle colloid cyst. She underwent endoscopic resection of colloid cyst. Her pregnancy was only confirmed after surgery and she delivered a healthy neonate at full term. She has remained clinically well and had resumed her work as a general practitioner.

Conclusion:

This case illustrates that urinary pregnancy test may show false negative result but pregnancy should not preclude radiological investigation and neurosurgical intervention in patients with deteriorating neurological function.
Specifics of Russian-Chinese Cross-Cultural Communication in the Field of Fine Art of the Second Half of the 20th — Early 21st Century
Authors: Qin Xiaofeng , Fedorovskaya Natalia A.
Published: February 2021

Research in the field of cross-cultural communications in the context of modern globalization processes is becoming particularly relevant. Each specific case in cross-cultural interaction has a set of specific features that require detailed study. The article discusses the features of Russian-Chinese cross-cultural communication in the field of fine art, which have been especially pronounced since the second half of the 20th century and until now. The analysis of generally accepted types of communication made it possible to show specific forms of interaction between Russia and China.

There is demonstrated that these features are largely related to the fact that the process of cross-cultural interaction occurs not only at the level of communication between representatives of the two peoples, but also in the process of artistic and stylistic exchange at the level of art works perception. Thus, cross-cultural communication refers to the process of information exchange at different levels. Russian-Chinese communication features include the intrapersonal perception of Russian art, style and genre features of the Russian realistic school, that influenced the style of Chinese artists; the interaction between individual artists and students, the unique contacts between a teacher-master and a student studying individually in the art studio. In the period under review, the communications were often unilateral — Chinese students and artists adopting the traditions of the Russian realistic school of painting, both by inviting Russian artists to China and studying in Russia. The specificity is also shown in the interaction between professional creative unions of artists, joint holding of exhibitions, and organization of plein-airs, during which a multi-level exchange of cultures can happen.
Dancing in the Modus of Self-Identification
Authors: Drobysheva Elena E.
Published: February 2021

The main idea of the article is to address the phenomenon of dancing as a type of creative activity in the modus of self-identification. Sociocultural (self-)identification within the framework of art is taken as the process and space of forming an outline — personal and collective — in relation to certain groups of values, norms and traditions, as a way to discover the boundaries of reflexivity and the possibility of their representation in an artistic act. Basing on the interpretation of reflection as self-directed thinking, this article solves the problem of showing the potential of art in general, and dancing in particular, in the aspect of formation and preservation of identity parameters. The identity is considered as the result of constructing metaphysical supports and methods of self-representation in the widest range: national, religious, ideological, gender, but above all — the actual artistic-stylistic one. In addition to the obvious value of beauty and harmony, the article highlights expressiveness and authenticity as the main axiological guidelines for the art of choreography. The author analyzes the high communicative potential of dancing as a type of artistic activity both at the professional and amateur levels. The article focuses on the specifics of self-identification procedures in the space of modern dance, interpreted in this context in a wide chronological field — from the emergence of “free dance” by Isadora Duncan to current trends in postmodern dance, “contemporary dance” and performative practices. The study concludes that dancing has a high axiological potential as an artistic activity that combines physical and metaphysical practices.
Quantum-based algorithm and circuit design for bounded Knapsack optimization problem
Authors: Hou Wenjun , Perkowski Marek
Published: February 2021

The Knapsack Problem is a prominent problem that is used in resource allocation and cryptography. This paper presents an oracle and a circuit design that verifies solutions to the decision problem form of the Bounded Knapsack Problem. This oracle can be used by Grover Search to solve the optimization problem form of the Bounded Knapsack Problem. This algorithm leverages the quadratic speed-up offered by Grover Search to achieve a quantum algorithm for the Knapsack Problem that shows improvement with regard to classical algorithms. The quantum circuits were designed using the Microsoft Q# Programming Language and verified on its local quantum simulator. The paper also provides analyses of the complexity and gate cost of the proposed oracle. The work in this paper is the first such proposed method for the Knapsack Optimization Problem.
An astonishing simple cerium-based chemosensor for fluorescent selective phosphate detection in aquaeous medium
Authors: Rossel Thibaud
Published: February 2021

Phosphate ions are socially important chemicals. They are involved in crucial processes such as for example in medicine or agriculture. However, their sensing with a chemosensor is ardous due to their chemical properties. In this context, a remarkable chemosensor would reveal an outstanding affinity, a high selectivity and a low detection limit in favor of an analyte. This has long been addressed in the past by chemists in synthesizing com- plex chemical architectures as receptors but with questionable successes. Astonishingly, here, for phosphate detection, we address this problem profiting by a simple fluorescent indicator displacement assay (FID) with only commercially available chemicals. We used cerium ammonium nitrate (CAN) combined with a fluorophore to probe phosphate ions in aqueous mediums. The inorganic complex detects phosphate ions in low millimolar concentrations either spectrophotometrically or with the naked-eye with high selectivity and affinity over other anions. To our knowledge, this is the first description of a simple sensitive, selective and high affinity cerium-based chemosensor for the fluorescent selective naked-eye detection of phosphate in aqueous medium. It proved useful for the detection of phosphate in Coca-Cola©.
CO2-Involved and Isocyanide-based Three-component Polymerization toward Functional Heterocyclic Polymers with Self-assembly and Sensing Properties
Authors: Liu Dongming , Song Bo , Wang JIa , Li Baoxi , Wang Bingnan , Li Mingzhao , Qin Anjun , Tang Ben Zhong
Published: February 2021

CO2 utilization has been a hot research topic in academic and industrial respects. Besides converting CO2 into chemicals and fuels, incorporating it into the polymers to construct functional materials is another promising strategy. However, the CO2-involved polymerization techniques should be further developed. In this work, a facile and efficient CO2-involved multicomponent polymerization is successfully developed. The reaction of monomers of CO2, isocyanides and 2-iodoanilines readily produces soluble and thermally stable poly(benzoyleneurea)s with well-defined structures under mild conditions. Thanks to the formed amide groups in the heterocyclic units in the main-chains, the resultant polymers could self-assemble into spheres with sizes between 200 and 1000 nm. The polymers containing tetraphenylethylene (TPE) unit show the unique aggregation-enhanced emission (AEE) features, which could be used to visualize the self-assembly process and morphologies under UV irradiation, and serve as fluorescence probe to selectively and sensitively detect Au3+ ions. Notably, the polymers containing cis- and trans-TPE units exhibit different behaviors in self-assembly and limit of detection for Au3+ ions due to the different intermolecular interactions. Thus, this work not only provides a new strategy for CO2 utilization but also furnishes a series of functional heterocyclic polymers for diverse applications.
Structure-Guided Design, Synthesis, and Evaluation of 1-Indanone and 1,3-Indandione Derivatives as Ligands for Misfolded α-Synuclein Aggregates
Authors: Sun Xianwei , Admane Prasad , Starosolski Zbigniew A. , L Eriksen Jason , V. Annapragada Ananth , Tanifum Eric
Published: February 2021

The development of imaging agents for in vivo detection of alpha-synuclein (α-syn) pathologies faces several challenges. A major gap in the field is the lack of diverse molecular scaffolds with high affinity and selectivity to α-syn fibrils for in vitro screening assays. Better in vitro scaffolds can instruct the discovery of better in vivo agents. We report the rational design, synthesis, and in vitro evaluation of a series of novel 1-indanone and 1,3-indandione derivatives from a Structure-Activity Relationship (SAR) study centered on some existing α-syn fibril binding ligands. Our results from fibril saturation binding experiments show that two of the lead candidates bind α-syn fibrils with binding constants (Kd) of 9.0 and 18.8 nM, respectively, and selectivity of greater than 10x for α-syn fibrils compared with amyloid-β (Aβ) fibrils. Our results demonstrate that the lead ligands avidly label all forms of α-syn on PD brain tissue sections, but only the dense core of senile plaques in AD brain tissue, respectively. These results are corroborated by ligand-antibody colocalization data from Syn211, which shows immunoreactivity towards all forms of α-syn aggregates, and Syn303, which displays preferential reactivity towards mature Lewy pathology. Our results reveal that 1-indanone derivatives have desirable properties for the biological evaluation of α-synucleinopathies.
Analisis privasi data pengguna contact tracing application pengendalian COVID-19 di Indonesia berdasarkan PERPRES RI No. 95 tahun 2018 tentang sistem pemerintahan berbasis elektronik
Authors:   Institut Teknologi Sepuluh Nopember, Surabaya, Suwandi Syifa Ilma Nabila , Seloatmodjo Xavier Wahyuadi ,   Institut Teknologi Sepuluh Nopember, Surabaya, Situmorang Alexandra ,   Institut Teknologi Sepuluh Nopember, Surabaya, Rakhmawati Nur Aini ,   Institut Teknologi Sepuluh Nopember, Surabaya
Published: February 2021

The presence of user contact applications in the community as a means of preventing and overcoming the spread of COVID-19 can pose another risk to the potential dangers of protecting data privacy from contact tracing. This research examines more deeply related to user privacy policies through 3 (three) samples of android-based user contact applications that are used as a means of preventing, overcoming and controlling the spread of the COVID-19 virus in today's society and by reviewing the rules contained in the Presidential Regulation of the Republic. Indonesian No. 95 of 2018 concerning Electronic-Based Government Systems (SPBE). The study in this study was prepared using the method of literature study, observation and qualitative analysis. A comparison was made regarding the data privacy of the three samples, which was then evaluated and matched with the form of the privacy policy according to Presidential Regulation No. 95 of 2018 concerning Electronic-Based Government Systems (SPBE) and according to the ideal form of data privacy policy based on several experts. Comparative data is obtained through related applications and other electronic media which are then discussed together to conclude and evaluate the data privacy policies of the three sample applications. Based on this research, it can be concluded that privacy intervention to deal with damage and save lives is legal as long as its use is in accordance with regulations in the health, disaster, telecommunications, informatics and other related fields; in this case listed in the Presidential Decree No. 95 of 2018 concerning Electronic-Based Government Systems (SPBE) and there needs to be an increase in efforts to maintain the security and confidentiality of user data privacy through continuous system and data maintenance, encryption of data privacy storage in the manager's data warehouse and added with other data privacy policies can guarantee the security and confidentiality of the privacy of user data.
The Official Information Act
Authors: King Paula , Baker Gabrielle , Jones Bernadette , Ingham Tristram
Published: February 2021

This article presents a case study of the use of the Official Information Act 1982 (OIA), for research commissioned by the Waitangi Tribunal in 2018 into disability-related issues for Mäori. The responses of Crown organisations to OIA requests examined in this research highlight both issues with inconsistent application of the OIA, and limited access to information held and made available by Crown agencies for Mäori with lived experience of disability.1 The statutory time frame for responses to OIA requests was rarely met. Organisations also resisted providing information, while crucial information for ensuring equity for Mäori with lived experience of disability was often not able to be released because it was not collected at all. The impact of these limitations is discussed, particularly pertaining to core government roles of performance monitoring and ensuring accountability. In addition to querying who benefits from, and is privileged by, the OIA and its application, questions are raised around the necessary components of a legislation rewrite in order to deliver on a modern approach to official information that ensures equitable, high-performing and truly democratic public administration.
Ambient seismic noise tomography of Canada and adjacent regions: Part I. Crustal structures
Authors: Kao H , Behr Y , Currie C , Hyndman R , Townend John , Lin FC , Ritzwoller M , Shan S , He J
Published: February 2021

This paper presents the first continental-scale study of the crust and upper mantle shear velocity (Vs) structure of Canada and adjacent regions using ambient noise tomography. Continuous waveform data recorded between 2003 and 2009 with 788 broadband seismograph stations in Canada and adjacent regions were used in the analysis. The higher primary frequency band of the ambient noise provides better resolution of crustal structures than previous tomographic models based on earthquake waveforms. Prominent low velocity anomalies are observed at shallow depths (<20 km) beneath the Gulf of St. Lawrence in east Canada, the sedimentary basins of west Canada, and the Cordillera. In contrast, the Canadian Shield exhibits high crustal velocities. We characterize the crust-mantle transition in terms of not only its depth and velocity but also its sharpness, defined by its thickness and the amount of velocity increase. Considerable variations in the physical properties of the crust-mantle transition are observed across Canada. Positive correlations between the crustal thickness, Moho velocity, and the thickness of the transition are evident throughout most of the craton except near Hudson Bay where the uppermost mantle Vs is relatively low. Prominent vertical Vs gradients are observed in the midcrust beneath the Cordillera and beneath most of the Canadian Shield. The midcrust velocity contrast beneath the Cordillera may correspond to a detachment zone associated with high temperatures immediately beneath, whereas the large midcrust velocity gradient beneath the Canadian Shield probably represents an ancient rheological boundary between the upper and lower crust. Key Points Unprecedented large-scale and homogeneous analysis Considerable crustal variations across Canada Prominent mid-crust velocity gradients beneath Cordillera and Canadian Shield ©2013. American Geophysical Union. All Rights Reserved.
Stress, strain, and mountain building in central Japan
Authors: Townend John , Zoback M
Published: February 2021

No description supplied
Evidence for tectonic, lithologic, and thermal controls on fracture system geometries in an andesitic high-temperature geothermal field
Authors: Massiot C , Nicol A , McNamara DD , Townend John
Published: February 2021

©2017. American Geophysical Union. All Rights Reserved. Analysis of fracture orientation, spacing, and thickness from acoustic borehole televiewer (BHTV) logs and cores in the andesite-hosted Rotokawa geothermal reservoir (New Zealand) highlights potential controls on the geometry of the fracture system. Cluster analysis of fracture orientations indicates four fracture sets. Probability distributions of fracture spacing and thickness measured on BHTV logs are estimated for each fracture set, using maximum likelihood estimations applied to truncated size distributions to account for sampling bias. Fracture spacing is dominantly lognormal, though two subordinate fracture sets have a power law spacing. This difference in spacing distributions may reflect the influence of the andesitic sequence stratification (lognormal) and tectonic faults (power law). Fracture thicknesses of 9–30 mm observed in BHTV logs, and 1–3 mm in cores, are interpreted to follow a power law. Fractures in thin sections (∼5 μm thick) do not fit this power law distribution, which, together with their orientation, reflect a change of controls on fracture thickness from uniform (such as thermal) controls at thin section scale to anisotropic (tectonic) at core and BHTV scales of observation. However, the ∼5% volumetric percentage of fractures within the rock at all three scales suggests a self-similar behavior in 3-D. Power law thickness distributions potentially associated with power law fluid flow rates, and increased connectivity where fracture sets intersect, may cause the large permeability variations that occur at hundred meter scales in the reservoir. The described fracture geometries can be incorporated into fracture and flow models to explore the roles of fracture connectivity, stress, and mineral precipitation/dissolution on permeability in such andesite-hosted geothermal systems.
Modelo de simulación del crecimiento de callo óseo en consolidación de fracturas
Authors: Naveiro Gómez José Manuel , Rosell Pradas Jorge
Published: February 2021

Desarrollo de un modelo de simulación de crecimiento del callo óseo en la consolidación de fracturas, con aplicación a las fracturas femorales tratadas mediante clavos intramedulares. En la bibliografía se puede encontrar que es un problema cada vez más presente [1] y que los enfoques son orientados a remodelación [2].
Technical and Operational Feasibility, for the business analysis, of running an Autopista Ferroviaria with Iberian track gauge between Port of Algeciras and Zaragoza-Plaza
Authors: Escobar de la Iglesia Jaime , Larrodé Emilio
Published: February 2021

The aim of this study is to evaluate the feasibility to run an Autopista Ferroviaria (AF) with Iberian track gauge from a technical and operational point of view in order to analyse the business model in the short term
Automatic Feature Extraction from Biosignals Using Convolutio-nal Neural Models
Authors: Torres Ruiz Jorge , Buldain Pérez Julio David
Published: February 2021

Nuestro objetivo principal consiste en desarrollar un modelo neuronal convolucional que pueda ser usado como etapa de entrada para clasificadores, extrayéndo las características más relevantes de una señal biomédica y eliminando la necesidad de estudiar la señal para seleccionar las características a usar en el entrenamiento del clasificador.
File-based race conditions in UNIX: TOCTOU
Authors: Raducu Razvan , Rodríguez Ricardo J , Álvarez Pedro J
Published: February 2021

This work presents an introduction to the Time Of Check to Time Of Use (TOCTOU) vulnerability as well as the development of a user-space library that hooks vulnerable system calls and modifies their behavior.
Adrian Parr, a polyhedral relationship with water
Authors: Jover Biboum Margarita , García Rubio Rubén , Ávila Calzada Carlos
Published: February 2021

Adrian Parr is a transdisciplinary scholar who brings the design disciplines into conversation with the humanities, social sciences, and science. Rather than work within the clearly defined boundaries of a specialized discipline, her writings and movies create ethical montages consisting of theoretical criticism, poetics, imagery, and sound. The daughter and niece of two of Australia's most well-known contemporary artists, she has a sensitivity toward the affective potential of thought and ethical reflection. Her writings encompass a journey through the notebooks of Leonardo da Vinci, Deleuze, feminism, contemporary art, sustainability culture, urbanism, climate change, policy, collective memory, trauma theory, and Marxist thinking. Her films set out to humanize the water and sanitation statistics driving national and international policy. In this interview Adrian Parr talks about the environmental and water problems in different parts of the world under a vision in which humanism, education, ethics, awareness and leadership play a transcendental role.
JEDEDIAH PURDY - After Nature: A Politics of the Anthropocene
Authors: Shannon Kelly
Published: February 2021

Jedediah PurdyAfter Nature: A Politics of the AnthropoceneCambridge, Massachusetts: Harvard University Press, 2015. 336 p. Language: English. Hardcover. 31,50 €ISBN: 9780674368224
FELIPE CORREA - Asentamientos extractivos en América del Sur: un urbanismo más allá de la ciudad
Authors: Flores Soto José Antonio
Published: February 2021

Felipe CorreaAsentamientos extractivos en América del Sur: un urbanismo más allá de la ciudadBarcelona: Reverté, 2018. 196 p. Tapa blanda. Idioma: español. 35 €ISBN: 9788429121315
BERTA BARDÍ I MILÀ, DANIEL GARCÍA-ESCUDERO (EDS.) - JIDA. Textos de arquitectura, docencia e innovación 6
Authors: Bambó Naya Raimundo
Published: February 2021

Berta Bardí I Milà, Daniel García-Escudero (Eds.)JIDA. Textos de arquitectura, docencia e innovación 6Málaga / Barcelona: Recolectores Urbanos / Iniciativa Digital Politècnica, 2019, 258 p. Idioma: español. Encuadernación en rústica con solapas. 15€. PDF de acceso abierto.ISBN: 978-84-949664-3-9 / 978-84-9880-811-7URI: http://hdl.handle.net/2117/174083
ACTIVACIÓN Y PRODUCCIÓN DE SUPERFICIES SILANIZADAS
Authors: Poveda G. Ana , Bonilla V. Pablo , Rivera Q. Joseth , SANTAMARÍA AGUIRRE JAVIER RODRIGO , RON GARRIDO LENIN JAVIER , MOSQUERA CARRERA PAMELA MISHELL
Published: February 2021

En el presente trabajo se estandarizó una metodología para la activación y producción de superficies silanizadas de naturaleza hidrofóbica. La metodología fue realizada mediante la activación de grupos OH de superficies de vidrio eliminando la materia inorgánica con etanol y la materia orgánica por reacciones de oxidación, mediante la construcción de una cámara de UV/ozono con dos longitudes de onda diferentes (253,7 nm y 180 nm). Se realizó la silanización de las superficies de vidrio activadas exponiéndolas con el reactivo (7-octen-1-il) trimetoxisilano/n-heptano a diferentes tiempos. La hidrofobicidad obtenida en las superficies silanizadas se determinó midiendo el ángulo de contacto (q). Los resultados permitieron concluir que existe influencia del tiempo de exposición en la formación de superficies hidrofóbicas. Se obtuvieron ángulos de contacto de 92,417° ± 0,631, tras 7 h de exposición seguidas de un proceso de limpieza de las superficies.
ESTUDIO DEL GRADO DE DETERIORO DEL HORMIGÓN SIMPLE Y ARMADO EMPLEANDO UNA CÁMARA DE ENVEJECIMIENTO
Authors: Bohorquez Karen , Piñeiros-Mendoza José Luis
Published: February 2021

El hormigón es uno de los materiales más usados en el área de construcción. Debido al uso diario de este material se realizó el estudio del envejecimiento del hormigón simple y del hormigón armado para prevenir futuras afectaciones a este tipo de materiales. Se ubicaron muestras de hormigón en una cámara de simulación climática en la que se controlaron las condiciones de humedad, temperatura y radiación de acuerdo a un modelo multivariable de los parámetros mencionados para simular el envejecimiento acelerado de los materiales. De esta manera se logró representar la degradación acelerada que sufrirían los materiales en la ciudad de Quito en 0, 5, 10, 15 y 20 años de exposición ambiental. Se emplearon técnicas gravimétricas, técnicas volumétricas, y la técnica de espectrofotometría de absorción atómica. Todos los resultados obtenidos fueron tabulados y graficados para visualizar su variación y tendencia en función del tiempo de exposición. El análisis más destacado fue el de la humedad, ya que presentó una tendencia de aumento y disminución con valores que varían entre 2,17 % y 3,37 % para el hormigón simple y 1,21 % y 2,32 % en el caso del hormigón armado, lo cual se debe a la evaporación del agua por las temperaturas elevadas. Otro análisis importante fue el equilibrio carbonato-bicarbonato debido al paso de iones hidronio (H+) que provocó un cambio de pH en el medio, y los óxidos de hierro que variaron significativamente por la presencia de un refuerzo de hierro en el hormigón armado con valores de 2,26 % a 7,23 % con respecto al hormigón simple que presentó valores de 0,89 % a 5,48 %. Se concluyó que sí existieron cambios en la composición química del hormigón simple y del hormigón armado al pasar los años.
Efecto radiosensibilizante del succinato de ciclohexanol.
Authors: Custode Eduardo , Utreras Armin , Naranjo Plutarco
Published: February 2021

El presente trabajo tuvo como objeto valorar el efecto del radiosensibilizante del ciclohexanol, droga antagonista de la glucosa. Se consideraron, fundamentalmente, los efectos de letalidad, efecto depilatorio y acción sobre los fetos en las ratonas gestantes.

Se encontró que la dosis letal media de radioterapia, en 30 días de observación (DL50/30), fue de 655 r., tanto para los animales de control como para los depilados manualmente antes de la irradiación, dosis menores de 600r, ya fueron capaces de producir aumento de la regeneración pilosa, eritema y úlcera cutánea. No hubo diferencias significativas entre los animales de control y aquellos tratados con ciclohexanol.

Cuando se irradió hembras preñadas, se encontró que mientras que las que recibieron ciclohexanol dieron a  luz sólo 21 a 54% de crías vivas, que murieron en los siguientes días, las hembras que no recibieron drogas, dieron a luz 90% de crías vivas y hubo una supervivencia del 53%, lo que demostraría que el ciclohexanol produce efecto radiosensibilizante sobre tejidos jóvenes.
Ranciere’owska interpretacja pracy własnej w warszawskim niepublicznym liceum: emancypacja jako de-instrumentalizacja
Authors: Blumsztajn Anna
Published: February 2021

W swojej odpowiedzi na artykuł Joanny Rutkowiak skupiam się na reinterpretacji wyjściowej dla jej wywodu analizy umasowienia edukacji oraz towarzyszącej jej instrumentalizacji kształcenia przez uczniów i studentów. Próbuję zestawić ten fenomen z moimi doświadczeniami nauczycielki w społecznym liceum ogólnokształcącym oraz z dyskusją toczącą się wokół kwestii egalitaryzacji edukacji pomiędzy Bourdieu, Rancière’m oraz Dubetem. W konkluzji odwołuje się do Arendt, która zdaje się sugerować myślenie o tym problemie w kategoriach edukacyjnego dialogu pomiędzy pokoleniami.
Dydaktyka na scenie. Autoetnografia performatywna performansów studentów i wykładowcy
Authors: Szwabowski Oskar , Wężniejewska Paulina , Stodolna Monika
Published: February 2021

To jest performatywny tekst – zapis autoetnograficznego performance’u dotyczącego dydaktyki akademickiej. Pokazujemy dynamikę pracy podczas projektu „Autoetnografie studiowania”. Był to projekt dydaktyczny prowadzony przez kilka lat. Nasza prezentacja dotyczy najbardziej rozbudowanej i najowocniejszej jego realizacji w latach 2015/2016 (szerzej zob. Szwabowski, Wężniejewska 2017; Szwabowski 2019; Kaczmarczyk et al. [w druku]). W ramach projektu wykorzystano autoetnografię zarówno jako narzędzie dydaktyczne, jak również jako metodę badawczą. Studentki i studenci mieli stać się badaczami swojego życia (Richardson 2002) akademickiego – którym jesteśmy „życi”. Z odbiorców wiedzy przekształcić się mieli w jej producentów. Mieli przestać wyczekiwać, aż ktoś zacznie snuć im małe opowieści o tym, jakie ich życie jest i jak powinno wyglądać, opowieści o tym, kim są i kim powinni być, to znaczy: co powinni myśleć. Mieli spróbować spojrzeć na siebie okiem badacza, wyjść poza mury wytworzonego przez znaczenia świata, spróbować odczytać go i siebie w nim na nowo.

Tekst został zaprezentowany na konferencji dotyczącej dydaktyki akademickiej. Zamiast przygotować typowy referat, postanowiliśmy pokazać, jak to się odbywało. Pokazać proces tworzenia znowu. Po raz kolejny. Tym razem jednak nie na papierze (nie w formie artykułu), lecz na żywo, z udziałem naszych ciał i towarzyszących nam emocji. To jedna z wielu opowieści. Powtórzenie – znowu inne (zob. Szwabowski 2019; Wężniejewska, Szwabowski 2017; Kaczmarczyk et al. [w druku]). Tekst składa się z opisu procesu jego tworzenia. Elementu performansu (wystąpienia na konferencji, któremu nadaliśmy formę przedstawienia teatralnego). Na zakończenie wyjaśniamy raz jeszcze nasze stanowisko odnośnie roli tekstu/przedstawienia oraz staramy się zwerbalizować emocje, które nam towarzyszyły, a także prezentujemy głosy innych osób.
Breastfeeding Experience in Young Mothers: A Scoping Review
Authors:   Universitas ‘Aisyiyah Yogyakarta, Rusdi Annisa , Rokhanawati Dewi ,   Universitas ‘Aisyiyah Yogyakarta
Published: February 2021

ABSTRACT Background: Young mothers go through the transitional stages of becoming parent and adult simultaneously. This poses a breastfeeding challenge that older mother does not encounter. The coverage of breastfeeding in young mothers was lower and the average duration of breastfeeding was shorter than that of adult mothers. The study aimed to review experience of breastfeeding in young mothers. Subjects and Method: A scoping review framework were adapted from Arksey and O’Malley method. It consists of five stages: 1) Identify research questions, 2) Identify relevant articles, 3) Select studies, 4) Comply data, 5) Summarize and report results. The inclusion criteria were original research, published from 2009-2019, and in English language. The exclusion criteria were randomized controlled trial study, reviewed articles, and reports or books. The quality of the article was assessed using Hawker’s Quality Assessment Tool and reported by PRISMA flowchart. Results: Eleven articles were selected from 562. The experience of breastfeeding in young mothers has been described in three mains thematic: (1) Mother decision to breastfeed were more self-centered, (2) The success of breastfeeding was supported by many factors, including feeling comfortable while breastfeeding, family and peer support, knowledge of breastfeeding benefits, and support from health workers, and (3) Obstacles during breastfeeding such as mothers feeling confined, community responses, worries about food consumption, have many roles, the assumption that babies are more satisfied with formula milk, physical discomfort, and inadequate response from health workers. Conclusion: Experience of breastfeeding in young mothers is influenced by three aspects: 1) Decision making to breastfeed, 2) Factors that support the implementation of breastfeeding, and 3) Constraints during breastfeeding. Keywords: Breastfeeding, experience, adolescents, young mothers Correspondence: Annisa Rusdi. Universitas ‘Aisyiyah Yogyakarta. Faculty of Health Sciences Master Program of Midwifery. Jl. Ringroad Barat No.63, Mlangi Nogotirto, Gamping, Sleman district, Yogyakarta, Indonesia. Email: Ann isa.rusdi0196@yahoo.com Mobile: 081275121348/089502800478 DOI: https://doi.org/10.26911/the7thicph.03.33