bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mathematical modeling of thermal processes during "cassette" crystallization of chalcogenides
Authors: Prostomolotov Anatoly I. , Verezub Nataliya A. 
Published: September 2020

A new, relatively simple and highly efficient modification of the directional melt crystallization method in the form of a multi-cassette process has been considered. This study is based on Russian Patents and technological studies conducted at National Research and Technological University MISiS.
As a result, mathematical models of a multi-cassette method have been developed for 3D radiation and conduction analysis of thermal processes in the entire volume of the heating unit and 2D analysis of convection and conduction heat exchange in a separate cassette. Parameters have been calculated on the basis of these mathematical models for clarifying the effect of heating unit component arrangement and dimensions on the formation of thermal fields in cassette units, the effect of vertical homogeneity of heat supply to the cassette unit and heating power reduction rate during crystallization on the shape of the crystallization front, as well as the effect of small asymmetry in cassette design and violation of cassette bottom cooling homogeneity on convection and asymmetrical heat transfer.
Application of the conductive and radiative heat exchange model to the entire heating unit has allowed us to calculate process parameters on the basis of which we have analyzed the effect of heating unit components, their arrangement and temperature on the heat exchange conditions at the cassette unit boundaries. Application of the convective and conductive model to one growth cassette has shown that asymmetrical design and boundary thermal conditions as well as unstable vertical temperature gradient lead to the formation of convection vortices and substantial crystallization front deviation from planar shape. Calculations on the basis of the convective mass exchange model have shown that an increase in the crystallization rate by one order of magnitude greatly increases the tellurium flow into the crystal thus substantially altering the melt composition in the vicinity of the crystallization front and hence serving as a potential origin of dendrite growth. The authenticity of the calculation results has been verified in a number of tests aimed at analyzing the effect of heat and mass transport on crystallization front shape for cassette cooling rates that are typical of polycrystalline bismuth telluride growth processes.
Enhancing Presentation Dynamics Through Voice Projection
Authors: Jeffers Jeanette M , Underwood Gretchen D 
Published: September 2020

ABSTRACT
Teaching adult learners requires ongoing preparation and commitment to excellence by adult educators. Central to the educational process is the educator's teaching style. One of the most powerful yet frequently underdeveloped qualities is the educator's voice. The authors present the Voice Projection Instrument as a personal development tool for adult educators to assess and enhance their speaking effectiveness in the classroom.
Application of a Partial Least Squares Regression Algorithm for Posterior Chamber Phakic Intraocular Lens Sizing and Postoperative Vault Prediction
Authors: Oleszko Adam , Marek Jarosław , Muzyka-Wozniak Maria 
Published: September 2020

PURPOSE:
To develop and validate a new algorithm for predicting the postoperative vault of the myopic EVO Visian Implantable Collamer Lens (ICL) V4c (STAAR Surgical AG).

METHODS:
This study included 81 eyes of 43 patients who had undergone ICL implantation. Preoperative data obtained by swept-source optical coherence tomography, Scheimpflug camera, and anterior segment optical coherence tomography were applied to develop a new partial least squares (PLS) regression algorithm. ICL sizing was performed using the standard white-to-white method with the online calculation and ordering system. The postoperative vault was assessed based on anterior segment optical coherence tomography. The PLS approach was applied to create the calibration model for predicting the postoperative vault. The new PLS model was cross-validated using the leave-one-out method and compared to a recently published linear regression model. Agreement between the actual and predicted vault values for the two methods was assessed by the Bland-Altman method.

RESULTS:

There was a statistically significant correlation (
P
< .001,
r
= 0.73) between the postoperative vault values and those predicted by the PLS algorithm. Validation of the PLS model yielded lower mean differences and limits of agreement (0 and 410 µm, respectively) than the linear regression method (400 and 750 µm, respectively).

CONCLUSIONS:
The PLS algorithm increases the precision of ICL vault prediction. However, it shows a tendency to overestimate small vault values and underestimate high vaults.

[
J Refract Surg
. 2020;36(9):606–612.]
Optical Performance of a Monofocal Intraocular Lens Designed to Extend Depth of Focus
Authors: Vega Fidel , Millán María S. , Gil Miguel A. , Garzón Nuria 
Published: September 2020

PURPOSE:
To test the performance of a new monofocal intraocular lens, intended to extend depth of focus (Tecnis Eyhance, ICB00; Johnson & Johnson Vision, Inc) (ICB-IOL), in comparison to a standard monofocal IOL (Tecnis 1-piece, ZCB00; Johnson & Johnson Vision, Inc) (ZCB-IOL) of the same platform and material.

METHODS:
Assessment of the optical performance of the two IOLs was made in vitro using an optical test bench with a model eye. The spherical aberration, modulation transfer function (MTF), and area under the MTF (MTFa) were obtained for pupil sizes ranging from 2 to 5 mm. Through-focus MTFa curves between −3.00 and +1.00 diopters (D) were obtained with three pupil sizes (2, 3, and 4.5 mm). Halo formation was also assessed for both lenses.

RESULTS:
The ICB-IOL had slightly worse optical quality at its best focus (ie, lower MTF scores at distance vision) and more negative spherical aberration than the ZCB-IOL for pupils ranging from 2 to 3 mm. The maximum of the through-focus MTFa curve of the ICB-IOL with a 2-mm pupil shifted to a myopic defocus of −0.50 D. For larger pupils (≥ 3.5 mm), there were no differences in spherical aberration, MTF scores, and halo energy between the two lenses.

CONCLUSIONS:
The new ICB-IOL is a modified monofocal lens with 0.50 D of additional power in its central 2-mm zone and more negative spherical aberration values, which induce a myopic shift of the maximum of optical quality and could improve intermediate vision. For pupils larger than 3.5 mm, there were no differences between IOLs. The new ICB-IOL design would produce photic phenomena comparable to a standard IOL.

[
J Refract Surg
. 2020;36(9):625–632.]
Trifocality Achieved Through Polypseudophakia: Optical Quality and Light Loss Compared With a Single Trifocal Intraocular Lens
Authors: Łabuz Grzegorz , Auffarth Gerd U. , Knorz Michael C. , Son Hyeck-Soo , Yildirim Timur M. , Khoramnia Ramin 
Published: September 2020

PURPOSE:
To compare the optical performance of a twointraocular lens (IOL) system with that of a single capsular bag trifocal IOL.

METHODS:
The two-IOL configuration of a monofocal RayOne Aspheric (Rayner Intraocular Lenses, Ltd) and a Sulcoflex Trifocal (Rayner Intraocular Lenses, Ltd) lens was compared in vitro with a single-lens option (RayOne Trifocal; Rayner Intraocular Lenses, Ltd). Two samples of each IOL model were studied with an optical metrology device. The optical quality was assessed using the area under the modulation transfer function (MTF). The impact of the supplementary lens mis-alignment on the MTF was tested. The light loss was also measured using a power meter.

RESULTS:
The two-IOL system produced three well-defined focal peaks comparable to those of the single lens. The MTF area of the single- and two-IOL configuration was, respectively, 22.5 and 20.7 at far, 16.4 and 15.4 at intermediate, and 14.9 for each configuration at near. A moderate decentration (up to 0.6 mm) had a minimal effect at intermediate and near on the supplementary lens MTF and no impact at far. A 5° tilt did not alter the MTF. The supplementary lens caused a 1.3% decrease in the optical power.

CONCLUSIONS:
The optical quality of the two-IOL system matched that of the single trifocal lens. A low-power supplementary IOL demonstrated high tolerance to misalignment and minimal light attenuation. The reversibility of the two-IOL approach may prove advantageous clinically.

[
J Refract Surg
. 2020;36(9):570–577.]
Mathematical Foundations of Isogeometric Analysis
Authors: Buffa Annalisa , Hughes Thomas J.R. , Kunoth Angela , Manni Carla 
Published: September 2020

Isogeometric analysis is a recent technology for numerical simulation, unifying computer aided design and finite element analysis. It offers a true design-through-analysis pipeline by employing the same representation models for both creating geometries and approximating the solution of partial differential equations defined on those geometries. This combined concept leads to improved convergence and smoothness properties of the solutions and dramatically faster overall simulations.
Even though substantial progress has been made in the isogeometric context over the last few years, there are several profound theoretical issues that are not yet well understood and that are currently investigated by researchers in numerical analysis, approximation theory, and applied geometry.
The workshop reported the substantial progress, both from the theoretical and applicative point of view, which has been made in the isogeometric context over the last three years. It offered a meeting point for leading scientists from isogeometric analysis and the mentioned mathematically relevant fields, and provided a rich and open ground of discussion within a diversified audience, profiting of different backgrounds and various perspectives.
Low Birth Weight Newborns and Associated Factors at Selected Referral Hospital in Rwanda
Authors: Murekatete Fatuma , Muteteli Claudine , Mujawamariya Françoise , Chironda Geldine 
Published: September 2020

Background
Low birth weight (LBW) is a major public health problem worldwide that is linked to childhood morbidity and mortality. Newborns considered ‘Very LBW’ have a high risk of disease and death during infancy. Maternal socioeconomic status, medical factors, and lifestyle are linked to LBW, but these factors remain unknown in Rwanda is unknown.
Objective
To describe the factors associated with LBW among newborns at a selected referral hospital in Rwanda.
Methods
A prospective, cross-sectional design study was used to assess 108 mothers who delivered a low birth weight newborn.
Results
Mothers had a mean age of 30.6 years, 79.6% married, 23.1% primary educated, 50.6% unemployed, and 61.9% lived in a rural area. The majority of LBW (63%) were in the first category of LBW (2500-1500g), and over a quarter (25.9%) with Very LBW (VLBW). Mothers were 89.7% multigravida, and 88.8% had a previous unsuccessful pregnancy, 81.3% premature birth, 97.9% LBW. Over half, 59.8% had hypertension during pregnancy. Lifestyle included 45.5% doing strenuous work, and 50.9% heavy lifting during pregnancy. The level of education (p=0.009), spouse employment (p=0.017), having previous premature baby (p=0.025), previous history of miscarriage (p=0.028), presence of hypertension (p=0.020) and antenatal care visits (p=0.025) the trimester of miscarriage were significantly associated to type of low birth weight.
Conclusion
Demographic, pregnancy history and lifestyle factors remain a concern to mothers and neonates born with low birth weight. Educational awareness campaigns among mothers with the factors above are crucial to reduce morbidity and mortality related to low birth weight.
Rwanda J Med Health Sci 2020;3(2):214-224
Mandatory and Default Rules in Serbian Company Law
Authors: Malagurski Branislav 
Published: September 2020

The matter of company law in Serbia is regulated by the Law on Companies, which does not contain the general provision defining whether it is based on the freedom of will, unlike the Law on Obligations, which defines so. Even therefrom, it can be concluded that the rules of the Law on Companies are in general mandatory. Such conclusion only confirms the exception-provision which defines that founders of the LLC their mutual relations and their relations with the Company regulate freely, unless by this Law otherwise defined. So, only the rules regulating mutual relations of founders and their relations with the LLC are default, unless otherwise provided in particular case. Other rules of the company law in Serbia are in general mandatory. However, even when the provisions regulating certain matter being mandatory, it does not mean that there is absolutely no space for deviations, like in below described cases of special duties, for example. But such deviations do not necessarily mean that the rules from which it is deviated are default ones.
Capital psicológico como mediador entre adicción al trabajo y burnout en trabajadoras en la industria de maquila en Guanajuato
Authors: Colín Flores Carlos Gabriel 
Published: September 2020

El objetivo de este estudio está orientado hacia el entendimiento de las relaciones que existen entre la adicción al trabajo, el capital psicológico y el burnout en una muestra de trabajadoras mexicanas en la industria de maquila en Guanajuato, en el que se buscó identificar si el capital psicológico, media entre las otras dos variables. Para este propósito, se calcularon las correlaciones de Spearman entre las variables de estudio y posteriormente se efectuó un análisis de mediación teniendo como variable independiente a la adicción al trabajo, variable mediadora el capital psicológico y variable dependiente el constructo burnout.
Para el estudio se integró una muestra de 451 de trabajadoras de la industria maquiladora en Guanajuato, México. Los hallazgos del estudio indican una correlación fuerte y positiva (r = + 0.73) entre la adicción al trabajo y el burnout; así como correlaciones fuertes y negativas entre la adicción al trabajo y el capital psicológico (r = - 0.67), por una parte, y entre el capital psicológico y el burnout (r = - 0.62) por otra.
En cuanto al análisis de mediación, se pudo corroborar que el capital psicológico, media parcialmente entre la adicción al trabajo y cada dimensión del constructo burnout.
‘HABITO, MAS NÃO VIVO AQUI’:
Authors: Preve Ana Maria H. 
Published: September 2020

O texto parte de uma situação vivenciada no trabalho de campo de minha pesquisa de doutorado. Tal situação, apresentada em detalhes no texto, poderia ter sido apenas um detalhe incômodo escamoteado da pesquisa uma vez que não interessava à intenção inicial de desenvolver junto aos participantes habilidades cartográficas, tão importantes para a compreensão da Geografia. A opção, à época, de considerar o referido evento, foi a mais difícil e, hoje percebo, a mais frutífera, com impacto radical nos objetivos, no problema, na metodologia, no referencial teórico e na concepção de saberes geográficos. No presente artigo retorno àquele fragmento, tanto de experiência quanto do texto da tese, para explorar suas potências sobre os limites que o educador encontra quando se depara com algo novo sem resposta na linguagem usual da cartografia escolar. O que está em evidência é a dificuldade de encontrar signos na linguagem para a expressão da questão: ‘habito este lugar, mas não vivo aqui’. A experiência de lidar com uma questão sem resposta na linguagem oficial nos fez entrar em contato com a liberação de aspectos da linguagem cartográfica para que se pudesse experimentar o que não comunica, e, no entanto, expressa as intensidades que compõem os meios.
Palavras-chave
Educação em geografia, Cartografias intensivas, Cartografia escolar.
CONTRIBUIÇÃO AO ENSINO DE GEOGRAFIA A PARTIR DA TRAJETÓRIA DE UMA CARREIRA:
Authors: Da Silva Faria Galvão dos Santos Fátima Aparecida 
Published: September 2020

O texto narra a trajetória de minha caminhada de trinta anos no magistério, iniciada em 1985, ao iniciar a carreira como professora alfabetizadora por nove anos, quando em 1994 passei a atuar também no ensino fundamental II e no ensino médio. Em 2000 me efetivei em Geografia e História na Rede Estadual de São Paulo, deixando a alfabetização e seguindo com os adolescentes. Ainda em 1999 inicio a busca por aprofundamentos teórico- metodológicos, indo em direção às pesquisas acadêmicas, com especialização em lato sensu, depois o mestrado, a segunda especialização e por fim o doutorado, sempre me enveredando para literaturas e teóricos que me dessem sustentação para avançar nos conhecimentos acerca do ensino de geografia e cartografia escolar. Foram três décadas de buscas e estudos constantes. Pesquisar a partir de diferentes autores da área da educação, do ensino de Geografia e da Cartografia escolar, não tem preço para uma professora da escola pública que saiu do interior de São Paulo para a Universidade na capital atrás de pesquisadores que a adotassem para que pudesse avançar em sua práxis e saberes. Eis aí, a minha contribuição para o ensino de geografia e para a educação brasileira.
Palavras-chave
Trajetória docente, Formação continuada, Ensino de Geografia, Cartografia escolar
IMPLICAÇÕES DAS POLÍTICAS EDUCACIONAIS RECENTES PARA OS PROFESSORES E FORMADORES DE PROFESSORES DE GEOGRAFIA
Authors: De Santana Filho Manoel Martins 
Published: September 2020

Este artigo apresenta o texto atualizado da palestra proferida no 14o Encontro Nacional de Práticas de Ensino em Geografia (ENPEG). Seu enfoque buscou atender à proposta da mesa- redonda, apresentando, primeiro, um questionamento sobre as políticas educacionais recentes, no âmbito geral e para a geografia brasileira: as mudanças na política educacional estão a serviço de combater desigualdades, muitas históricas? Segundo, como, na educação geográfica escolar, tais documentos dialogam com docentes e estudantes, especialmente dos sistemas públicos. Seguindo, desenvolve uma leitura do cenário recente, apontando problemas relativos ao lugar dos sujeitos dominantes nas proposições e o lugar reservado à educação popular e a relação com a universidade e escolas. Sob a ideia das hierarquias socioespaciais, alguns problemas servem para tensionar o debate: identifica-se alguma ruptura com a matriz neoliberal burguesa, qual o lugar da docência, qual docência? Para a interlocução no evento, foram apresentadas algumas questões: nesses documentos, qual o lugar do geográfico e da Geografia na educação escolar; qual futuro? Este artigo se encerra propondo ações e desafios à prática curricular sob a autoria de professoras e professores em distintos espaços, especialmente na prática pedagógica: uma geografia do Brasil que expresse sua condição de país inventado, sua diversidade étnica, linguística e territorial. Uma docência como ato de rebeldia, uma afronta.
Palavras-chave
Políticas educacionais, Educação geográfica, Docência, Geografia
A BASE NACIONAL COMUM CURRICULAR E A PRODUÇÃO DE PRÁTICAS PEDAGÓGICAS PARA A GEOGRAFIA ESCOLAR:
Authors: Roque Ascenção Valéria de Oliveira 
Published: September 2020

Este artigo é um desdobramento da mesa de debates ocorrida em agosto de 2019, no 14º Encontro Nacional de Prática de Ensino em Geografia-ENPEG, na UNICAMP, Currículo e a teoria do Conhecimento Pedagógico do Conteúdo com as proposições da Base Nacional Comum Curricular de Geografia (BNCC Geografia) para os anos iniciais e finais do ensino fundamental brasileiro. O objetivo central do trabalho é colocar em diálogo os desafios postos pela proposição de conhecimentos geográficos pela atual BNCC ao professor de Geografia, à sua formação - inicial e continuada -,e à organização de suas práticas pedagógicas a partir dos currículos construídos sob a égide da base. Buscarei apontar uma alternativa de leitura da base com vistas a subsidiar o professor atuante na educação básica. Quanto à formação docente, me aterei a discorrer sobre os limites dos atuais currículos formativos das licenciaturas em Geografia e as possibilidades que eu vejo expressas na BNCC.
Palavras-chave
Base Nacional Comum Curricular Geografia, Formação Docente, Conhecimento Pedagógico do Conteúdo
PRODUÇÃO ACADÊMICA SOBRE ENSINO DE GEOGRAFIA:
Authors: Cavalcanti Lana de Souza , Bueno Míriam Aparecida 
Published: September 2020

Este artigo apresenta atividades desenvolvidas no Laboratório de Estudos e Pesquisa em Educação Geográfica – LEPEG, sediado no Instituto de Estudos Socioambientais da Universidade Federal de Goiás, com o intuito de mostrar sua expressividade no campo da pesquisa do ensino de Geografia no Brasil. Nas três últimas décadas vários estudos têm apontado a ampliação e consolidação desse campo de pesquisa, qualificando-o e legitimando-o como campo relevante para a área. Nesse contexto, foi criado o LEPEG, um espaço de referência que tem se dedicado à formação inicial e continuada de professores, à pesquisa em diferentes temáticas do ensino de Geografia, à extensão de suas atividades para a sociedade, norteando-se pelos princípios do trabalho coletivo, crítico-colaborativo, pela integração entre teoria e prática, pela articulação efetiva e sistemática entre a Universidade e as escolas de Educação Básica. O grupo de profissionais que desenvolvem suas atividades nesse laboratório caracteriza-se pela especialidade na pesquisa sobre ensino de Geografia, dedicando-se a diferentes temáticas, como a Cartografia Escolar, o Ensino de Cidade e Cidadanias, fundamentos teórico-metodológicos do pensamento geográfico no ensino e o Ensino de temáticas físico-naturais.
Palavras-chave
Pesquisa e ensino, Formação de professores, Trabalho coletivo e colaborativo, Educação Básica
Analisis Indeks Kerapatan Vegetasi Untuk Identifikasi Kejadian Dan Potensi Puting Beliung Di Wilayah Kabupaten Klaten
Authors: Ayik Zauyik nana ruslana 
Published: September 2020

Dengan melakukan analisa citra landsat 8 yaitu Citra Satelit Landsat 8 OLI/TIRS yaitu berupa citra yang diperoleh dari USGS (United State Geological Survey) dengan pengolahan pertama dengan software ENVI untuk meningkatkan ketajaman dan kejelasan citra satelit, kemudian dilakukan pengolahan dengan ArcGIS 10.4 untuk menghasilkan peta NDVI dengan dua klasifikasi yaitu klasifikasi kerapatan dan vegetasi serta titik kejadian puting beliung di wilayah Kabupaten Klaten sesuai hasil pengolahan citra satelit Landsat 8 menjadi peta NDVI didapat bahwa di hampir seluruh wilayah Kabupaten Klaten lebih sedikit vegetasi dengan kerapatan tinggi, yang lebih banyak adalah lahan terbuka seperti sawah/ladang dan pemukiman penduduk. Kejadian puting beliung di wilayah Kabupaten Klaten berdasarkan data tahun 2018–2019 terjadi pada bulan Desember–April. Dengan semakin sedikitnya vegetasi yang kerapatannya tinggi dan semakin meningkatnya pemukiman penduduk dan lahan terbuka, maka potensi puting beliung akan semakin meningkat selain karena faktor lain seperti suhu udara, tekanan udara dan awan kumulonimbus. Manfaat yang diperoleh adalah dapat sebagai pertimbangan dalam membangun dan penataan infrastruktur yang lebih hijau dan berkesinambungan, serta sebagai mitigasi dan adaptasi terhadap wilayah yang paling rawan terdampak puting beliung di Kabupaten Klaten