bluuebunny/crossref_metadata_2025_split huggingface dataset:
Proposta de frameworks para inventariação de Geossítios do Cariri Paraibano / Proposal of frameworks for inventory of geosites in the Cariri Paraibano
Authors: Meneses Leonardo Figueiredo de , Nascimento Marcos Antônio Leite do 
Published: June 2018

Nas últimas décadas um novo paradigma tem se construído na conservação ambiental, fundamentado na valorização dos elementos da geodiversidade ao mesmo nível de importância da biodiversidade e sociodiversidade. A impossibilidade de conservar todos os elementos da geodiversidade exige a identificação dos locais que apresentam singularidades e expressividade do ponto de vista de seus valores. O inventário de geossítios é uma das etapas principais no processo de geoconservação, no entanto, poucos trabalhos descrevem metodologias para sua realização. O objetivo principal deste trabalho é elaborar propostas de frameworks para a região do Cariri paraibano, com o intuito de serem utilizadas em estudos para a inventariação da geodiversidade da região. As propostas baseiam-se na metodologia de Abordagem Estratégica. Foi utilizado o mapa topográfico e geológico do Estado da Paraíba, sobrepondo-se a divisão administrativa municipal, em um Sistema de Informações Geográficas, resultando em 04 propostas em diferentes níveis de complexidade, considerando as diferentes litologias e suas idades geológicas. Os resultados obtidos são o passo inicial para pensar a temática da geodiversidade na região do Cariri paraibano de uma forma sistemática, viabilizando o uso das informações produzidas por parte dos gestores do território em prol de um melhor aproveitamento dos recursos naturais da região. Palavras-chave: Geodiversidade, Inventário de geossítios, Cariri paraibano ABSTRACT In the last decades a new paradigm has been built on environmental conservation, based on valuing of geodiversity elements at the same level of importance of biodiversity and sociodiversity. The impossibility to preserve all the elements of geodiversity requires the identification of sites that have singularities and expressiveness in terms of their values. The inventory of geosites is one of the main steps in the geoconservation process, however, few studies describe methods for its realization. The main objective of this paper is to develop proposals for frameworks for the region of Cariri Paraibano, in order to be used in studies to inventorying the geodiversity of the area. The proposals are based on the methodology of the Strategic Approach. It was used topographic and geological map of the State of Paraíba, overlapping the municipal administrative division, in a Geographic Information System, resulting in 04 proposals at different levels of complexity considering the different lithologies and its geological ages. The results are the first step to analyze the theme of geodiversity in the Cariri Paraibano in a systematic way, allowing the use of such information by territory managers to make better use of natural resources in the region. Keywords: Geodiversity, Inventory of geosites, Cariri paraibano
A Filosofia na Antropogeografia de Friedrich Ratzel / The philosophy in anthropogeography of Friedrich Ratzel
Authors: Souza Marquessuel Dantas de 
Published: June 2018

Ao propor uma breve abordagem sobre as influências que Ratzel sofreu para elaborar sua Geografia Humana, há que ressaltar o modo como este analisa os autores citados em seus escritos, em especial, no primeiro volume da Antropogeografia. Pois é nesta obra que o geógrafo alemão enfatiza com rigor suas críticas para com os filósofos presentes ao longo do texto. Bem entendido, todos os autores citados na referida obra recebem, por assim dizer, um elogio por parte de Ratzel. Todavia, os mesmos autores são criticados veementes quando da análise sobre a influência dos aspectos naturais do meio físico sobre os homens. Desde os geógrafos e filósofos que o precederam até os contemporâneos. Palavras-chave: Ratzel; Antropogeografia; Filosofia. Abstract By proposing a brief overview about the influences that Ratzel suffered to develop their Human Geography, would emphasize how it parses the authors cited in his writings, especially in the first volume of Anthropogeography. It is in this work that the German geographer emphasizes rigorously their criticisms of the philosophers present throughout the text. Of course, all authors cited in those works receive, so to speak, a eulogy by Ratzel. However, the authors are criticized vehement when analyzing the influence of the natural aspects of the physical environment on men. Since geographers and philosophers who preceded to contemporary. Keywords: Ratzel; Anthropogeography; Philosophy.
Mapeamentos das Desigualdades de Renda em Dourados – MS / Mapping of income inequality in Dourados-MS
Authors: Souza Luana Santos , VIEIRA Alexandre BERGAMIN 
Published: June 2018

Entendemos ser essencial a análise e a compreensão da produção e estruturação do espaço urbano das cidades brasileiras, que cada vez mais se apresentam desiguais, segregadas e excludentes. Neste artigo buscamos compreender as características gerais das discussões sobre desigualdades sociais através da elaboração do mapeamento de indicadores sociais, a fim de revelar a realidade socioespacial da cidade de Dourados – MS. Os mapas temáticos permitem-nos identificar e analisar como a exclusão social e as desigualdades se expressam no espaço intraurbano douradense. Assim o mapeamento dos indicadores sociais proporciona uma melhor visualização espacial da realidade, pois o mapa como instrumento de leitura da realidade, indicando o “o que” e o “onde”, cria uma visão da cidade que é espacial e relacional. Assim, para este texto foram elaborados mapas acerca da renda per capita do domicílio, buscando revelar onde a exclusão social é mais evidente, ao identificar o “o lugar de cada um” na cidade de Dourados. Ao mesmo tempo, os mapas auxiliam no processo de implementação de políticas que buscam amenizar o processo de exclusão social.Palavras–chave: Dourados; Mapeamento; Desigualdade Socioespacial.AbstractWe believe it is essential to the analysis and understanding of the production and structuring of urban space in brazilian cities, which increasingly have inequalities, segregated and exclusionary. In this article we try to understand the general characteristics of the discussions on social inequalities through the development of mapping social indicators in order to reveal the socio-spatial reality of the city of Dourados-MS. Thematic maps allow us to identify and analyze how social exclusion and inequalities are expressed in the intra-urban douradense space. So the mapping of social indicators provides a better spatial view of reality, because the map as a true reading instrument, indicating the "what" and "where" creates a vision of the city that is spatial and relational. So for this text were prepared maps on the per capita income of the household, seeking to reveal where social exclusion is more evident, to identify the "place of the each" in the city of Dourados. At the same time, the maps help in policy implementation process seeking to ease the process of social exclusion.Keywords: Dourados; mapping; Socio-Spatial inequalities
ATITUDES E PRÁTICAS PEDAGÓGICAS DE INCLUSÃO PARA O ALUNO COM AUTISMO
Authors: Faria Karla Tomaz , Teixeira Maria Cristina Trigueiro Veloz , Carreiro Luiz Renato Rodrigues , Amoroso Victor , Paula Cristiane Silvestre de 
Published: June 2018

O Transtorno do Espectro Autista (TEA) é um transtorno do neurodesenvolvimento que compromete o aproveitamento escolar do aluno e o funcionamento adaptativo nos ambientes social e familiar. Os objetivos do estudo foram verificar conhecimentos sobre TEA, atitudes e práticas pedagógicas junto a alunos com o transtorno. Esse estudo teve desenho transversal descritivo com a participação de 217 professores da educação básica de uma rede pública. O instrumento de coleta de dados foi um questionário que averiguou conhecimentos sobre TEA, atitudes e práticas pedagógicas dos professores em sala de aula. Foram conduzidas análises descritivas de frequência e percentual. Os resultados indicaram que 84,8% dos profissionais reconheceram corretamente a presença de fatores associados a déficits de interação social, comportamento e comunicação, mas 30% cometeram erros na compressão dos fatores etiológicos. Considerando a opinião dos 102 (47%) professores participantes do estudo que tinham tido alunos com TEA em algum momento de sua atuação profissional, verificou-se em média que 70,56% deles concordavam com praticamente todas as ações educacionais e pedagógicas do Desenho Universal da Aprendizagem. Porém, a implementação dessas técnicas na prática não conseguia atingir o mesmo nível, já que essas ações eram utilizadas em média por 56,87% dos professores. O estudo possibilitou, a partir do relato dos professores, mapear integradamente aspectos essenciais que devem fazer parte de acomodações e/ou adaptações curriculares para alunos com TEA.
SYNTHESIS AND STUDY OF PROPERTIES OF SURFACTANTS BASED ON FAT ACIDS OF PALM OIL AND METHANOL
Authors: Lutfullina Gulnaz G. , Guseva Ksenia S. , Grishin Pavel V. , Khairutdinova Razikya K. 
Published: June 2018

A new product was obtained with the use of methyl alcohol and fatty acids of palm oil. The series of experimens were performed to reveal its composition and properties with the use of modern devices and methods. The results of IR-spectroscopy have approved the presence of specific functional groups: hydroxylic, ester, carboxylic and sulfonate ones. The results of studies have shown that the synthesized substance posesses the surfactant properties: wetting, foaming, detersive; and it has a relatively low surface energy. It belongs to the group of high-despersity and mono-dispersity systems and takes an intermediate position between micro- and nano-particles. It was shown, that the contact angle of the water solution of the surfactant under study equals to at least 90 degrees and practically does not depend on the nature of wetted surface (eather hydrophylic or hydrofobic). It was founded that the foam expansion ratio and its stability are high and lay in direct relation with the substance concentration. It was found that relating to the protein composition, the detergent power of the surfactant is higher (up to 90 %) than regarding to pigment-and-oil contamination. Measuring the values of surface tension by Willhelm plate-bearing method allowed defining the critical concentration of micelle formation of 4.0 g/dm3, at which the maximum wetting is achieved. It was found that the synthezised product have a low emulsifying power towards the motor, machine oil and animal fat. Besides, the highest stability of emulsion was observed towards the machine oil (at concentration of synthesized product of 2.0 g/dm3). The emulsion stability can be increased by making compositions including the non-ionogenic surfactants. Moreover, it was found that the product under study is characterized by the high aggregative stability, since the achieved values of zeta-potential are in the range of 30 mB< ζ < -30 mB. The developed product belongs to the anionic surfactants, with рН of water solution of 7-8. It has a good water solubility. According to results of the hydrophylic-and-lipophylic balance, the synthesyzed surfactant belongs to detergents.Forcitation:Lutfullina G.G., Guseva K.S., Grishin P.B., Khairutdinova R.I. Synthesis and study of properties of surfactants based on fat acids of palm oil and methanol. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 6. P. 88-95
Anvendelsesforpligtet grundforskning på læreruddannelsen
Authors: Nielson Bo 
Published: June 2018

Siden 2013 har læreruddannelsen fået pligt til at bedrive forskning og udvikling (FoU) som en del af kerneopgaven. Denne opgave er blevet implementeret på meget forskellige måder på landets læreruddannelser. I denne artikel argumenterer jeg for, at FoU skal balancere et ideal om transformation af praksis gennem udfordringsbasering og løsningsorientering, samtidig med at der skal ydes et substantielt bidrag til forskningsfeltet. FoU skal ligeledes balancere et ideal om praksisnærhed og medinddragelse samtidig med et ønske om generaliserbarhed og skalering. Artiklen afsluttes med en introduktion til interventionsforskningen som et konstruktivt bud på en ramme og struktur, der kan rumme ovenstående fordringer. To be able to differentiate between approaches to teachers’ professional development, Cochran-Smith and Lytle have developed three conceptions of the relationships between teachers’ knowledge and their practice. One of these, Knowledge-of-practice, is the basis for this article, as we use Lesson studies to exemplify the potentials of approaches within this conceptualization. In Japan, Lesson studies are used in all subjects, whereas in the West the approach predominantly is used in Mathematics and with a focus on pedagogical content knowledge. Based on a lesson study case in the subject of Danish, we argue that approaches as lesson study provide teachers the possibility to research and solve teaching problems with a focus simultaneously on pedagogical knowledge and pedagogical content knowledge.
İndoksakarb Kalıntısı ve Bozunma Ürünü İçin Yeni Bir Tayin Yöntemi Geliştirilmesi
Authors: ÇUBUK Soner , AYDIN Adnan 
Published: June 2018

Günümüze özellikle son 20 yıl süresince kullanımı çarpıcı bir şekilde artan pestisitler, modern tarımda böcekler, yabani otlar, mikroorganizmalar gibi zararlıları kontrol altına almak ve ürün verimini arttırmak için kullanılmakta olup hedef olmayan su, toprak ve gıdaları kirletmelerinin yanı sıra insan, evcil hayvanlar, bal arıları ve kuşlar için potansiyel sağlık riski gösterebilmektedirler. Zehirli olmalarının yanı sıra aynı zamanda bu bileşikler kanser yapıcı oluşumlara da sebep olurlar. Böceklerin ve yabani otların bu kimyasallara olan dayanıklılığının artması sonucu dünya çapında pestisit kalıntı problemlerine yol açan daha fazla pestisit geliştirilmiş ve daha yüksek dozlarda kullanılmaya başlanmıştır. Bununla birlikte pestisitler, besin zincirine çeşitli yollarla girerek canlıların vücutlarında biyolojik birikime uğramakta ve bu besin zincirinde ilerlerken her aşamada daha büyük miktarlara erişmektedirler.Balın da arasında bulunduğu gıdalar başta olmak üzere birçok matristeki pestisitlerin analizinin yapılması canlıların ona ne oranda maruz kaldığının doğru bir şekilde değerlendirilmesi bakımından büyük bir önem arz etmektedir. Bu nedenle pestisitlere ait kalıntı seviyelerinin tespiti ve kullanılan metotların güncel mevzuatlarda yer alan tolere edilebilir kalıntı konsantrasyonları da kapsaması beklenmektedir. Son yıllarda bu alanda bazı çalışmalar yapılmış olmasına rağmen ülkemizde ballardaki pestisit tayinleriyle ilgili çok az çalışma bulunmaktadır.Çalışmamızda bal örneklerinde İndoksakarb ((S)-7-kloro-3-[meteksikarbonil-(4-trifluorometoksi-fenil)-karbamoil]-2,5-dihidro-indeno[1,2-e][1,3,4]oksadiazin-4a(3H)-karboksilik asit metil esteri) kalıntısının ve bozunma ürününün belirlenmesi için yeni bir yöntem geliştirilmiştir. Diklorometan ile ekstraksiyon sonrasında, Gaz Kromatograf-Kütle Spektrometresi kullanılarak indoksakarb ve bozunma ürününü tayin edilmiştir. Geliştirilen metota ait geri kazanım yüzdesi, tespit ve tayin sınırları sırasıyla %78,7±5,5 ; 0,03mg/kg ve 0,11mg/kg olarak hesaplanmıştır.İndoksakarbile kirletilmiş kestane, çiçek, çam ve ayçiçek balı numuneleri 3 farklı sıcaklıkta 8 ay süresince izlenmiş ve beşinci ayda 4-(trifluorometoksi)fenil izosiyanat,literatürde belirtilenlerden farklı bir bozunma ürünü olarak tespit edilmiştir.
Complex 3D‐Printed Microchannels within Cell‐Degradable Hydrogels
Authors: Song Kwang Hoon , Highley Christopher B. , Rouff Andrew , Burdick Jason A. 
Published: June 2018

Abstract3D‐printing is emerging as a technology to introduce microchannels into hydrogels, for the perfusion of engineered constructs. Although numerous techniques have been developed, new techniques are still needed to obtain the complex geometries of blood vessels and with materials that permit desired cellular responses. Here, a printing process where a shear‐thinning and self‐healing hydrogel “ink” is injected directly into a “support” hydrogel with similar properties is reported. The support hydrogel is further engineered to undergo stabilization through a thiol‐ene reaction, permitting (i) the washing of the ink to produce microchannels and (ii) tunable properties depending on the crosslinker design. When adhesive peptides are included in the support hydrogel, endothelial cells form confluent monolayers within the channels, across a range of printed configurations (e.g., straight, stenosis, spiral). When protease‐degradable crosslinkers are used for the support hydrogel and gradients of angiogenic factors are introduced, endothelial cells sprout into the support hydrogel in the direction of the gradient. This printing approach is used to investigate the influence of channel curvature on angiogenic sprouting and increased sprouting is observed at curved locations. Ultimately, this technique can be used for a range of biomedical applications, from engineering vascularized tissue constructs to modeling in vitro cultures.
3D‐Ridge Stocked Layers of Nitrogen‐Doped Mesoporous Carbon Nanosheets for Ultrasensitive Monitoring of Dopamine Released from PC12 Cells under K+ Stimulation
Authors: Emran Mohammed Y. , Shenashen Mohamed A. , Morita Hiromi , El‐Safty Sherif A. 
Published: June 2018

Abstract3D‐ridge nanosheets of N‐doped mesoporous carbon (NMCS)‐based electrodes are fabricated as ultrasensitive biosensors for in vitro monitoring of dopamine (DA) released from living cells. The large‐scale ranges of dense‐layered sheets are arranged linearly with a thickness of <10 nm, soft tangled edges, stocked layer arrangements, and tunable mesoporous frameworks with 3D orientations. The intrinsic features of the active interfacial surface of the electrode based on NMCS along with polarized surfaces, dense surface‐charged matrices, fast electron transfer, and easy molecular diffusion, are present in the highly active electrode for biosensing applications. The designed electrode based on the NMCS shows high sensitivity and selectivity for DA sensing even in the presence of physiological interference molecules, such as ascorbic acid and/or uric acid, at a low applied potential of 0.25 V versus Ag/AgCl. The large‐scale NMCS‐based electrode shows low detection limits as low as 10 nmol L−1, wide linear range up to 0.5 mmol L−1, long‐term stability for more than 15 d (relative standard deviation (RSD)= 5.8%), and a low cytotoxicity with high biocompatibility. The findings demonstrated that the NMCS‐based electrode is a reliable modified electrode for ultratrace sensitivity of DA, which is secreted normally from dopaminergic cells (PC12) or under a stimulating agent (K+).
Oxidative Radical Cyclization of N‐methyl‐N‐arylpropiolamide to Isatins via Cleavage of the Carbon‐carbon Triple Bond
Authors: Liao Yan‐Yan , Gao Yong‐Chao , Zheng Wenxu , Tang Ri‐Yuan 
Published: June 2018

AbstractA radical cyclization of N‐methyl‐N‐arylpropiolamide to isatins via an oxidative cleavage of a carbon‐carbon triple bond has been developed. In the presence of oxone and NaNO2, a variety of N‐methyl‐N‐arylpropiolamides were smoothly transformed into isatins. A nitration reaction proceeded along with the oxidative cyclization; both nitrated and non‐nitrated isatins were obtained in a one‐pot reaction with moderate to good total yields. This is the first example for the synthesis of isatins via the oxidative radical cleavage of a carbon‐carbon triple bond.magnified image
Aqueous Synthesis of Methylammonium Lead Halide Perovskite Nanocrystals
Authors: Geng Chong , Xu Shu , Zhong Haizheng , Rogach Andrey L. , Bi Wengang 
Published: June 2018

AbstractMethylammonium lead halide perovskite nanocrystals offer attractive optoelectronic properties but suffer from fast degradation in the presence of water. In contradiction to this observation, we demonstrate the possibility of a direct aqueous synthesis of CH3NH3PbX3 (X=Br or Cl/Br) nanocrystals through the reaction between the lead halide complex and methylamine when the pH is maintained in the range of 0–5. Under these synthetic conditions, the positively charged surface of the perovskite nanocrystals and the proper ionic balance help to prevent their decomposition in water. Additional surface capping with organic amine ligands further improves the photoluminescence quantum yield of the perovskite nanocrystals to values close to 40 %, ensures their stability under ambient conditions for several months, and their photoluminescence performance under continuous 0.1 W mm−2 405 nm light irradiation for over 250 hours.
Boosting Size‐Selective Hydrogen Combustion in the Presence of Propene Using Controllable Metal Clusters Encapsulated in Zeolite
Authors: Shan Yuling , Sui Zhijun , Zhu Yian , Zhou Jinghong , Zhou Xinggui , Chen De 
Published: June 2018

AbstractA strategy is presented for making metal clusters encapsulated inside microporous solids selectively accessible to reactant molecules by manipulating molecular sieve size and affinity for adsorbed molecules. This expands the catalytic capabilities of these materials to reactions demanding high selectivity and stability. Selective hydrogen combustion was achieved over Pt clusters encapsulated in LTA zeolite (KA, NaA, CaA) in a propene‐rich mixture obtained from propane dehydrogenation, showing pore‐size dependent selectivity and coking rate. Propene tended to adsorb at channels or external surfaces of zeolite, interfering the diffusion of hydrogen and oxygen. Tailoring the surface of LTA zeolite with additional alkali or alkaline earth oxides contributed to narrowing zeolite pore size and their affinity for propene. The thus‐modified Pt@KA catalyst displayed excellent hydrogen combustion selectivity (98.5 %) with high activity and superior anti‐coking and anti‐sintering properties.
Enantioseparation of Au20(PP3)4Cl4 Clusters with Intrinsically Chiral Cores
Authors: Zhu Yanfei , Wang Hui , Wan Kaiwei , Guo Jun , He Chunting , Yu Yue , Zhao Luyang , Zhang Yin , Lv Jiawei , Shi Lin , Jin Renxi , Zhang Xinxiang , Shi Xinghua , Tang Zhiyong 
Published: June 2018

AbstractAu20(PP3)4Cl4 (PP3=tris(2‐(diphenylphosphino)ethyl) phosphine), abbreviated as Au20, is the only Au nanocluster with an intrinsically chiral core without a chiral environment (chiral ligands or Au‐thiolate staples), making it a unique object to understand chiral evolution and explore chiral applications. Unfortunately, the synthesized Au20 is racemic, and its enantiomers have not yet been separated. Herein, we report a supramolecular assembly strategy with α‐cyclodextrin (α‐CD) to afford enantiopure Au20 in bulk, and an enantiomer excess (ee) value of as‐separated Au20 of 97 %. As a result of its high purity, the distinctive optical activity of Au20, which originates from electronic transitions confined in chiral cores, is fully explored. Theoretical studies reveals that the enantioseparation results from the preferential self‐assembly of α‐CD with organic ligands on the surface of right‐handed Au20.