bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of pH condition during hydrothermal synthesis on the properties of hydroxyapatite from eggshell waste
Authors: Toibah A. R. , Misran F. , Shaaban A. , Mustafa Z. 
Published: July 2020

Hydroxyapatite (HA) powders were synthesized using eggshell waste through hydrothermal method to develop bioceramics materials for medical applications. The effects of the pH conditions during the synthesis on the phase behaviour, crystallite size, crystallinity and morphology of as-synthesized ceramic powders were evaluated. The XRD patterns showed that HA was only the main phase present in the as-synthesized powder after being calcined at 400°C. However, EDX measurement detected the presence of Mg as trace elements which originated from the eggshell as starting materials. The crystallite size and crystallinity of the HA powders were increased when the powders were synthesized in acidic condition as compared to basic condition. FESEM images showed that HA powder with nano-sized rods and spherical morphologies were obtained from the powders that were synthesized at pH 5, while the powder particles synthesized at basic condition at pH 9 produced elongated rod-shape particles. The PSD results showed that the synthesized HA were in agglomerated form which were also confirmed by FESEM images.
Surface roughness effect on droplet impact characterization: Experimental and theoretical study
Authors: Zohrabi Chakaneh J. , Javid S. M. , Passandideh-Fard M. 
Published: July 2020

In this paper, the effect of surface roughness on the both normal and inclined droplet impact is investigated experimentally by image processing. The impingement of water droplets with 2.9 mm diameter and 1m/s velocity impacting on three types of stainless steel surfaces with respective arithmetic average surface roughness values of 2.24 μm (Smooth), 6.04 (Medium) and 30.2 (Rough) is examined using a high-speed camera. The dynamic behavior of the impact including droplet deformation, the maximum spreading diameter and length, contact angle and the number of fingers are studied. Experimental results demonstrate that rough surfaces not only prevent secondary droplet formation but also decrease the number of fingers formed around the droplet in the normal droplet impact. Considering the inclined droplet impact scenarios, the asymmetric spreading of droplet on inclined surfaces avoids the secondary droplet formation by decreasing the fluid kinetic energy. In the inclined impact, fingers are formed around the droplet perimeter like the normal impact. The only difference between impacts onto the inclined surfaces is a gradual decrease of the number of fingers by increasing the incline angle. The experimental results are compared with those of the analytics available in the literature for the normal droplet impacts. Next, a simple analytical model for droplet impact on an inclined surface is developed; the predictions from this model was also compared to those of measurements. Calculated values from the analytical models agreed well with experimental data for both normal and inclined impact scenarios.
Contemporary Amharic Oral Poetry from Gojjam: Classification and a sample Analysis
Authors: Gelaye Getie 
Published: July 2020

In the preceding discussion, an attempt was made to provide a classification of Amharic oral poems and songs into several themes and genres. Accordingly, such major genres as work songs, children’s poems, war chants and boasting recitals were identified and a description and analysis of selected poems and their role, particularly in local politics and administration, were provided. In their poems and songs, the peasants of East Gojjam critically express their views, attitudes and feelings either in the form of support or protest, towards the various state policies and local directives.Indeed, the Amharic oral poems and songs from the two peasant communities illustrate topics associated with the change of government, land redistribution, local authorities and their administration, as well as a variety of other contemporary issues affecting the rural society. The poems also throw some light on the understanding of the peasants’ consciousness and observations comparing past and present regimes of Ethiopia, besides their power of aesthetics and creative capabilities of the peasants’ poetic tradition.In fact, this can be seen from a wider perspective, considering the function and role of oral literature in an agrarian and traditional society such as the two peasant communities mentioned in this paper. The peasants’ response in poetry to the diverse contemporary politics and local administration need to be studied carefully and considered appropriately in the state’s future rural policies and development projects if it is intended to bring about a democratic system that leads towards a peaceful coexistence among the rural peasantry.
HEX: Hyperbolic Event eXtractor, a Seismic Phase Associator for Highly Active Seismic Regions
Authors: Woollam Jack , Rietbrock Andreas , Leitloff Jens , Hinz Stefan 
Published: July 2020

Abstract
The task of seismic phase association is to correlate the onsets of radiated seismic energy with an underlying source. Commonly applied within seismic monitoring networks for event detection, it forms a vital component of many seismic processing pipelines. With the complexity of this task naturally increasing with the number of phases to simultaneously correlate, rapid advancements in the number of sensors per seismic deployment, along with improved picking algorithms have greatly increased the volume of phases now recorded across seismic networks. Although traditional phase association methods work well for historic catalogs, they become unreliable when tasked with associating the frequent smaller events recorded in the latest seismic datasets. Accurately correlating such events is crucial if seismologists are to better understand the underlying physical processes. The phase association problem is, therefore, being revisited with novel techniques now being applied to improve performance. We present a new technique for associating seismic phases, Hyperbolic Event eXtractor (HEX). HEX adapts the logic of Random Sample Consensus, a model estimation approach widely used in the computer vision community and specifically designed to deal with high proportions of noise in the data distribution. We demonstrate the performance of HEX in associating phases over a synthetic dataset for a regional seismic network in northern Chile. Synthetic testing reveals that HEX can correlate seismic phases when events have up to a ∼15  s average spacing.
Using Aftershocks to Help Locate Historical Earthquakes
Authors: Ebel John E. 
Published: July 2020

AbstractFor historical earthquakes, the spatial distributions of macroseismic intensity reports are commonly used to estimate the event locations. The methods to locate historical earthquakes assume that the highest seismic intensity shows the best estimate of the location of the earthquake. Uncertainties in the locations estimated from macroseismic data can be due to an uneven geographic distribution of sites with intensity reports, variations in intensities due to local soil conditions, ambiguous historical reports, and earthquake directivity effects. Additional constraint on the location of a historical earthquake can come from places where most aftershocks were felt, because these localities may have been closest to the fault on which the mainshock took place. Examples of estimated earthquake locations based on aftershocks are those of the 1727 MLg 5.6 earthquake in northeastern Massachusetts, the MLg 5.7 earthquake in Maine, and the 1755 MLg 6.2 earthquake offshore of Cape Ann, Massachusetts. In all of these cases, the earthquake locations based on the aftershock data are somewhat different from previous locations derived from the macroseismic intensities alone. Uncertainties with this method include identifying aftershocks in historical accounts and the possibility that smaller events that are reported following a strong earthquake are not on or near the mainshock rupture. Even so, evidence of possible aftershock activity may help constrain the location of that mainshock. Because aftershocks of strong earthquakes (M≥7) can last months to years, archival research for aftershocks must be carried out with a somewhat different mindset than that for a mainshock.
Widespread Small-Scale Anisotropic Structure in the Lowermost Mantle beneath the North American Continent and Northeastern Pacific
Authors: Lei Wei , Wen Lianxing 
Published: July 2020

Abstract
We constrain D″ anisotropy beneath the North American continent and northeastern Pacific using two approaches: (1) joint splitting analysis of SKS and SKKS phase pair for a common event, in which we obtain 158 pairs exhibiting discrepant splitting results and 791 pairs nondiscrepant splitting results; and (2) group splitting analysis of SKS (or SKKS) phase from neighboring events recorded at a common station, in which we observe 109 2°×2° grids with consistent splitting parameters, and 164 grids with abrupt changes from splitting to no splitting within 30–100 km. The seismic data from both analyses indicate that small-scale variations of D″ anisotropy are widespread beneath the studied regions, with a lateral scale up to tens of kilometers. For portion of the data recorded at the stations of simple upper-mantle anisotropy, we correct for the effects of upper-mantle anisotropy and obtain the splitting parameters of D″ anisotropy. The inferred D″ anisotropy exhibits a changing geographic pattern and lateral transition of anisotropy to a lateral scale of tens of kilometers. Such a length scale of changing anisotropy is also confirmed by synthetics modeling of the seismic data. We suggest that the inferred small-scale anisotropies could be best explained by the shape preferred orientation of widespread small-scale partial melt pockets derived by a composition change produced early in the Earth’s history, a similar compositional origin that was invoked to explain the African anomaly in the lower mantle.
High-Resolution Imaging of Hydraulic-Fracturing-Induced Earthquake Clusters in the Dawson-Septimus Area, Northeast British Columbia, Canada
Authors: Roth Marco P. , Verdecchia Alessandro , Harrington Rebecca M. , Liu Yajing 
Published: July 2020

AbstractThe number of earthquakes in the western Canada sedimentary basin (WCSB) has increased drastically in the last decade related to unconventional energy production. The majority of reported earthquakes are correlated spatially and temporally with hydraulic fracturing (HF) well stimulation. In this study, we use waveform data from a new deployment of 15 broadband seismic stations in a spatial area of roughly 60×70km2, covering parts of the Montney Formation, to study the relationship between earthquakes and HF operations in the Dawson-Septimus area, British Columbia, Canada, where the two largest HF-related earthquakes in WCSB to date, an Mw 4.6 on 17 August 2015 and an ML 4.5 on 30 November 2018, have occurred. We use an automated short-term average/long-term average algorithm and the SeisComP3-software to detect and locate 5757 local earthquakes between 1 July 2017 and 30 April 2019. Using two clustering techniques and double-difference relocations of the initial catalog, we define event families that are spatially associated with specific wells, and exhibit temporal migration along a horizontal well bore and/or multiple fractures close to wells. Relocated clusters align in two dominant orientations: one roughly perpendicular to the maximum horizontal regional stress direction (SH) and several conjugate structures at low angles to SH. Comparing the two predominant seismicity lineations to regional earthquake focal mechanisms suggests that deformation occurs via thrust faulting with fault strike oriented perpendicular to SH and via strike-slip faulting with strike azimuth at low angles to SH. Local scale seismicity patterns exhibit clustering around individual HF wells, whereas regional scale patterns form lineations consistent with deformation on faults optimally oriented in the regional stress field.
Créditos
Authors: Guimarães Gustavo Cerqueira 
Published: July 2020

Créditos do v. 2, n. 1, jan.-abr. 2017.EDITORESElcio Loureiro CornelsenGustavo Cerqueira Guimarães SUBEDITORMarcus Vinícius Costa Lage EDITORES DE SEÇÃO Dossiê – A performatividade do futebol na cultura: identidade e gêneroGustavo Cerqueira Guimarães (UFMG) ParalelasMarcus Vinícius Costa Lage Resenha e PoéticaGustavo Cerqueira Guimarães COORDENAÇÃO EDITORIAL, DIAGRAMAÇÃO E EDITORAÇÃO ELETRÔNICA Gustavo Cerqueira Guimarães Preparação de originais – alunos da turma de Edição em ambiente virtual, 2º/2016 Adriana Streahl FerreiraBeatriz Chaves FontenelleBruna Honório VianaCirce ClingertDaniela Mattos MenezesFlávia Aparecida AndradeGiulia Leroy Alves MarquesIago Passos SouzaIsabella Aparecida de Souza LisboaLorena Cristiane de Souza CamiloLuiza Fontes MartinsMaria Alice da SilvaMariana GusmãoMelina Sousa da RochaNatália Rodrigues RochaPedro Rena TodeschiThaís Rayanna Menezes Dalariva PROJETO GRÁFICOPeDRa LeTRa IMAGEM DA CAPA DO PORTALPablo Lobato (Brasil)Um a zero #2, 2012 IMAGEM DA CAPA DESTE NÚMEROEugênio Sávio (Brasil)Tropeirão do Mineirão, 2009
Créditos
Authors: Cerqueira Guimarães Gustavo 
Published: July 2020

Créditos do v. 2, n. 3, set.-dez., 2017. EDITORESElcio Loureiro CornelsenGustavo Cerqueira Guimarães SUBEDITORMarcus Vinícius Costa Lage EDITORES DE SEÇÃO Dossiê: Crônica esportiva no Brasil: história e narrativaBernardo Borges Buarque de Holanda (FGV)ParalelasElcio Loureiro CornelsenResenha e PoéticaGustavo Cerqueira GuimarãesPARECERISTAS DESTA EDIÇÃOAline Alves Arruda, CEFET-MGAndré Alexandre Guimarães Couto, CEFET-RJAndré Mendes Capraro, UFPRBernardo Borges Buarque de Hollanda, FGVEduardo de Souza Gomes, UFRJFábio Franzini, UNIFESPJosé Carlos Marques, UNESPLeda Maria da Costa, UFFMarcelino Rodrigues da Silva, UFMGPlínio Ferreira Guimarães, IFESRafael Lovisi Prado, UFMGSérgio Settani Giglio, UNICAMPThiago Carlos Costa, UFMGVictor Andrade de Melo, UFRJPROJETO GRÁFICOPeDRa LeTRaCOORDENAÇÃO EDITORIAL, DIAGRAMAÇÃO E EDITORAÇÃO ELETRÔNICAGustavo Cerqueira Guimarães Preparação de originais Alunos-editores da disciplina Oficina de edição: editoração de revista eletrônica, 1º/ 2018 Camila Lopes SchirmerDébora Estevam AraújoFernando Gomes de Oliveira e SilvaGabriela Vilela Souza MartinsIgnacio Maroun BilbaoIsrael Fernandes de OliveiraMaria Eugenia Araújo de OliveiraNatália Carin da Silva OliveiraOctavio Cardozzo IMAGEM DA CAPA DO PORTALPablo Lobato (Brasil)Um a zero #2 (2012) IMAGEM DA CAPA DESTE NÚMEROEd Marte (Brasil) Camisa 10
Development Strategy of the Clothing Marketing in China from the Perspective of Network Marketing
Authors: Wang Chengxi 
Published: July 2020

<p>Network marketing is a new thing for adapting to the development of network technology and the social change in the era of information network. The progress of science and technology, the change of consumer concept and the aggravation of business competition promote its emergence and development. As a new marketing method, network marketing will inevitably greatly affect the sales of clothing enterprises. Based on the connotation and characteristics of network marketing, this paper first expounds the main direction of clothing network marketing development, then constructs a multi-network marketing system from the aspects of product quality, brand construction, user tendency, real-time interaction, online and offline, and finally improves the network marketing system. It is expected to provide the corresponding references for the innovation of China's clothing marketing work under the background of Internet.</p>
Analysis on Evaluation of Economic Vitality of Some Cities in China Based on Principal Component Analysis
Authors: Li Xuming , Pu Teng , Huang Jing , Li Xiaoyuan 
Published: July 2020

<p>Through the research on the development indicators of major cities in China, this paper analyzes the development factors and achievements as the basis of data analysis, tries to rank some cities in China for economic vitality, and finds out the relevant factors that can promote the development of urban economy, and provides a reference for the government to formulate policies.</p>
Factores asociados a resultados funcionales en pacientes con ictus isquémico tratados con trombolisis endovenosa en un hospital del Perú.
Authors: Gallo-Guerrero Marla L. , Zevallos Cynthia B. , Quiñones Miguel 
Published: July 2020

Objetivo: Describir el tratamiento del ictus isquémico agudo con reperfusión endovenosa y determinar los factores asociados al rendimiento funcional de pacientes sometidos a trombolisis en un hospital peruano. Material y Métodos: Estudio prospectivo y longitudinal de una cohorte de pacientes con ictus isquémico que recibieron rtPA en un periodo de 3 años. Se evaluó la relación entre datos demográficos y clínicos y el estado funcional a los 3 meses de la intervención. La asociación del pronóstico funcional se valoró mediante el modelo de regresión simple y multivariado de Poisson, y el Riesgo Relativo (RR) con un intervalo de confianza (IC) al 95%, como medida de asociación. Resultados. Durante el periodo del estudio, 74 pacientes (1.19% del total) recibieron el tratamiento. El 68,18% logró independencia funcional (mRS 0-2) a los 90 días. La mortalidad fue de 6 % y un 3% mostró hemorragia intracerebral (HIC). Glicemia >140 mg/dl (OR 5,12; 1,31-20,02; p=0,019) e infarto de tipo posterior (OR 7,47; 1,01-55,15; p =0,04) se asociaron a un mayor riesgo de dependencia funcional. Conclusiones: En la cohorte estudiada, la mayoría de los pacientes alcanzaron independencia funcional a los 3 meses de tratamiento trombolítico. La hiperglicemia (>140gr/dl) y el infarto vertebro-basilar se asociaron con un mayor riesgo de dependencia funcional.
Hubungan Tingkat Kecukupan Gizi, Tingkat Pengetahuan Ibu, dan Tinggi Badan Orangtua dengan Stunting di Wilayah Kerja Puskesmas Tambak Wedi Surabaya
Authors: Wulandari Rizqita Catur , Muniroh Lailatul 
Published: July 2020

Latar Belakang: Stunting merupakan masalah pertumbuhan fisik yang disebabkan oleh kurangnya kecukupan gizi, rendahnya pengetahuan gizi, serta tinggi badan orangtua. Puskesmas Tambak Wedi Surabaya merupakan salah satu puskemas yang mengalami peningkatan prevalensi stunting 2,7% dari tahun 2017. Meningkatnya angka prevalensi menandakan bahwa pencegahan dan penanganan stunting di Surabaya harus dioptimalkan agar prevalensinya dapat ditekan.Tujuan: Menganalisis hubungan tingkat kecukupan zat gizi (energi, protein, kalsium), tingkat pengetahuan ibu dan tinggi badan orangtua dengan stunting di Puskesmas Tambak Wedi.Metode: Penelitian ini merupakan penelitian observasional dengan desain case control. Besar sampel adalah 48 balita yang terdiri dari sampel kasus (24 balita stunting) dan sampel kontrol (24 balita non-stunting). Variabel dependen adalah stunting. Variabel independen adalah tingkat kecukupan energi, protein, kalsium, tingkat pengetahuan ibu, dan tinggi badan orangtua. Analisis data menggunakan uji statistik chi-square dan regresi sederhana.Hasil: Terdapat hubungan antara tingkat kecukupan energi (p=0,02;OR=0,11), protein (p=0,018;OR=2,3), kalsium (p=0,023;OR=0,2), pengetahuan ibu (p=0,029;OR=‒0,265) dengan kejadian stunting pada balita. Tinggi badan ayah (p=0,77) dan ibu (p=0,76) tidak memiliki hubungan dengan kejadian stunting pada balita di Puskesmas Tambak Wedi.Kesimpulan: Tingkat kecukupan zat gizi dan tingkat pengetahuan ibu pada balita non-stunting lebih baik daripada balita stunting. Tingkat kecukupan zat gizi meliputi energi, protein, kalsium dan pengetahuan ibu memiliki hubungan dengan stunting pada balita usia 24-59 bulan di wilayah kerja Puskesmas Tambak Wedi Surabaya.
Mujeres que usan drogas inyectadas y violencia: Necesidad de una respuesta integrada
Authors: Folch Toda Cinta , Casabona Jordi , Majó Xavier , Meroño Mercè , González Victoria , Colom Joan , Brugal M. Teresa , Espelt Albert 
Published: July 2020

El objetivo de este estudio fue describir la prevalencia de violencia física y/o sexual experimentada por mujeres que usan drogas por vía inyectada (MUDVI) e identificar factores asociados. Se realizó un estudio transversal en 120 MUDVI usuarias de centros de reducción de daños mediante un cuestionario anónimo y recogida de muestras de fluido oral para estimar la prevalencia del VIH y de la hepatitis C. Los factores asociados a la presencia de violencia se analizaron mediante un modelo de regresión de Poisson con varianza robusta univariante y multivariante, obteniendo razones de prevalencia (RP) y sus intervalos de confianza al 95%. Los resultados muestran que la prevalencia de agresiones en los últimos 12 meses fue del 45,8% (42,2% agresiones físicas y 11,9% agresiones sexuales). A nivel multivariante, las variables asociadas a la presencia de violencia fueron estar sin domicilio fijo (RP=1,59; IC: 1,07-2,38), ejercer el trabajo sexual (RP=1,65; IC: 1,19-2,29), haber sufrido alguna infección de transmisión sexual (RP=1,49; IC: 1,04-2,15) y/o inyectarse drogas no de forma diaria (RP=2,29; IC: 1,49-3,54). Este estudio pone de manifiesto la importancia de establecer protocolos de detección, y derivación a la red de atención a la violencia de género, dentro de los centros de la red de atención a las drogodependencias, así como el desarrollo de estrategias multinivel que tengan en cuenta no solamente factores individuales sino también otros aspectos sociales y/o estructurales que pueden estar jugando un papel relevante a la hora de abordar este problema.