bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Cluster Intensitas Kebencanaan di Indonesia Menggunakan Metode K-Means
Authors: Heraldi Hafiz Yusuf , Aprilia Nabila Churin , Pratiwi Hasih
Published: December 2019

Indonesia is one of the most prone countries to natural disasters in the world because of the climate, soil, hydrology, geology, and geomorphology. There are many different natural disasters, but the three most common natural disasters in Indonesia are flood, landslide, and tornado. This research aimed to cluster the provinces in Indonesia based on the flood, landslide, and tornado’s intensity in 2018. The results of clustering by K-Means method in this research divided the provinces in Indonesia into four clusters. The second cluster contained West Java, Central Java, and Bali, the third cluster contained DKI Jakarta, the fourth cluster contained DI Yogyakarta, and the first cluster contained the other 29 provinces. The result of this research hopefully can help the government in order to make decision and improve the natural disaster management system, such as preparedness, disaster response, and disaster recovery based on the most common disaster in each province. Furthermore, the society is expected to be more aware on natural disaster management based on the most common natural disaster in province that they lived.

Keywords : natural disaster, cluster, k-means
Characterization of metallothionein protein from hepatopancreas organ of Pilsbryoconcha exilis collected from Cikaniki River, Western Java, Indonesia
Authors: SATA YOSHIDA SRIE RAHAYU  , WAHYU PRIHATINI
Published: December 2019

Abstract. Rahayu SYS, Prihatini W. 2020. Characterization of metallothionein protein from hepatopancreas organ of Pilsbryoconcha exilis collected from Cikaniki River, Western Java, Indonesia. Nusantara Bioscience 12: 1-5. Freshwater environment, undergoing various changes due to the presence of dangerous toxic anthropogenic waste. It causes pressure on the freshwater biota that lives in it, such as Pilsbryoconcha exilis mussel at the bottom of freshwater. This pressure is controlled by the body through the synthesis of a set of stress proteins. Endogenous proteins, metallothionein (MT), in the body of freshwater biota absorb heavy metals in the body of biota, in the form of stress control. This research identified MT protein on P. exilis from contaminated waters such as the Cikaniki river with the average of mercury levels in water, sediment, and hepatopancreas of mussels using AAS method were 0.001 mg/L, 0.120 mg/L, and 1.318 mg/L respectively. Hepatopancreas of P. exilis was extracted using a Tissue Extraction Reagent I kit (Invitrogen), with procedures following the factory manual. The extract was purified by filtration using Sephadec 50; then, the filtration results were migrated together with the PageRuler TM Unstained Low Range Protein Ladder (Fermentas) in Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis (SDS PAGE) gel medium on Biorad Protein II electrophoresis. After completion of electrophoresis, the gel was stained using Page Blue Protein Staining Solution (Fermentas), following the factory manual procedure. Characterization at this research has succeeded in obtaining the MT-I isoform protein measuring 5, 10, and 25 kDa from the hepatopancreas organ of P. exilis.
Bioactivity of Asclepias curassavica, Equisetum spp. and Rosmarinus officinalis Extracts Against Leaf-Cutting Ants
Authors: Ramos Vânia Maria , Leite Rafael Gervasoni Ferreira , Almeida Viviane Tavares de , Camargo Roberto Da Silva , Cruz João Vitor Souza , Leão Renato Marcos de , Prado Matheus Venâncio , Pereira Mariana Cristina Sousa
Published: December 2019

Chemical control of leaf-cutting ants is widely used, but alternative control with toxic plant extracts is promising. Substances with insecticidal potential extracted from plants have numerous ecological advantages. This study evaluated the insecticidal and/or fungicidal potential of the plants Asclepias curassavica (tropical milkweed), Rosmarinus officinalis L. (Lamiaceae) (rosemary) and Equisetum spp. (horsetail) for control of the leaf-cutting ant Atta sexdens rubropilosa Forel, 1908 (Hymenoptera: Formicidae). Forty laboratory-reared colonies of Atta sexdens rubropilosa were used. The plants were collected, dried out in a circulating air oven for 48 hours, ground, and macerated in 96o ethanol until exhaustion. After filtration, the products were evaporated under reduced pressure to obtain the ethanolic extracts. Acceptance of the reagent, topical application of the extracts, and application of baits containing 4% of the plant extracts were tested. The results showed that all plant extracts tested negatively influenced the development of the fungus garden. Baits produced with Asclepias curassavica caused the highest mortality of the colonies within 7 days. In conclusion, the ethanolic extracts of Asclepias curassavica, Rosmarinus officinalis and Equisetum spp. exhibit insecticidal (contact and ingestion) and fungicidal activity in colonies of the leaf-cutting ant Atta sexdens rubropilosa.
Probing shallower: perceptual loss trained Phase Extraction Neural Network (PLT-PhENN) for artifact-free reconstruction at low photon budget
Authors: Deng Mo , Goy Alexandre , Li Shuai , Arthur Kwabena , Barbastathis George
Published: December 2019

Deep neural networks (DNNs) are efficient solvers for ill-posed problems and have been shown to outperform classical optimization techniques in several computational imaging problems. In supervised mode, DNNs are trained by minimizing a measure of the difference between their actual output and their desired output; the choice of measure, referred to as “loss function,” severely impacts performance and generalization ability. In a recent paper [A. Goy et al., Phys. Rev. Lett. 121(24), 243902 (2018)], we showed that DNNs trained with the negative Pearson correlation coefficient (NPCC) as the loss function are particularly fit for photon-starved phase-retrieval problems, though the reconstructions are manifestly deficient at high spatial frequencies. In this paper, we show that reconstructions by DNNs trained with default feature loss (defined at VGG layer ReLU-22) contain more fine details; however, grid-like artifacts appear and are enhanced as photon counts become very low. Two additional key findings related to these artifacts are presented here. First, the frequency signature of the artifacts depends on the VGG’s inner layer that perceptual loss is defined upon, halving with each MaxPooling2D layer deeper in the VGG. Second, VGG ReLU-12 outperforms all other layers as the defining layer for the perceptual loss.
Single-volume dual-channel acousto-optical tunable filter
Authors: Machikhin Alexander , Batshev Vladislav , Pozhar Vitold , Naumov Alexander
Published: December 2019

In this paper, we present a novel approach to spectral stereoscopic imaging. It is based on simultaneous spectral filtration of two light beams with a tunable acousto-optical filter (AOTF) of original design. It does not require large crystals and complicated optical relay systems, because two beams diffract in the same volume of the crystal medium but at different angles. We show that this geometry can be composed of a common-type AO cell and two triangular prisms of the same material. We derive equations, which specify the prism angles ensuring the necessary orientation of beams trajectories inside the crystal medium as well as parallel propagation of input and output beams. Some angles were additionally optimized for aberrations minimization by means of ray-tracing simulation. Experimental testing demonstrates rather high quality of spectral images, which is necessary for stereoscopic reconstruction procedure. The proposed approach makes possible development of spectral stereo-imaging components based on different types of previously developed AOTFs.
Nanoparticle trapping and routing on plasmonic nanorails in a microfluidic channel
Authors: Yin Shengqi , He Fei , Green Nicolas , Fang Xu
Published: December 2019

Plasmonic nanostructures hold great promise for enabling advanced optical manipulation of nanoparticles in microfluidic channels, resulting from the generation of strong and controllable light focal points at the nanoscale. A primary remaining challenge in the current integration of plasmonics and microfluidics is to transport trapped nanoparticles along designated routes. Here we demonstrate through numerical simulation a plasmonic nanoparticle router that can trap and route a nanoparticle in a microfluidic channel with a continuous fluidic flow. The nanoparticle router contains a series of gold nanostrips on top of a continuous gold film. The nanostrips support both localised and propagating surface plasmons under light illumination, which underpin the trapping and routing functionalities. The nanoparticle guiding at a Y-branch junction is enabled by a small change of 50 nm in the wavelength of incident light.
Excitation of high Q toroidal dipole resonance in an all-dielectric metasurface
Authors: Luo Xin , Li Xiangjun , Lang Tingting , Jing Xufeng , Hong Zhi
Published: December 2019

In metamaterial systems, toroidal dipole (TD) plays an important role in determining their optical properties. Here, we proposed an all-dielectric metasurface consisting of two silicon split-ring resonators (SRRs) that can support strong TD resonance. The TD resonance is excited by TD moments both inside the unit cell and between the neighboring unit cells, and can be easily manipulated by altering the gap size or distance of the SRRs, leading to powerful electric and magnetic near-field enhancement. In addition, symmetric unprotected TD bound state in the continuum (TD-BIC) was achieved in closed-ring-resonator (CRR) metasurface, and transformed into leaky resonances with ultrahigh Q factors by adjusting the distance of CRRs. The proposed structure provides a good platform for us to better understand the coupling of SRRs, which is useful for the design and application of TD metasurfaces in biological sensors, nonlinear interactions and other photonic devices.
Images of the child in preschool music education: Case studies in Australia and China
Authors: Tao Xiangyi , Ewing Robyn
Published: December 2019

This article explores images of young children in preschool music curricula in an Australian and a Chinese preschool. The ‘images of the child’ relevant to each country are presented by including children’s voices, teachers’ perceptions of children’s personalities and their ways of learning, and children’s roles in learning as designated in official documents on early childhood education. Framed by a sociocultural perspective, this qualitative case study responds to the changing contexts of early childhood music education (ECME) in both countries. Crystallization as a methodological lens is applied to shed light on the variations and complexities from the teachers’ and the children’s perspectives. Data-gathering methods include document analysis, classroom observations, teachers’ interviews and conversations with children. This article particularly reflects the images and experiences of the children through their own lenses and enriches the scope of current ECME research.

The main findings suggest the existence of both alignment and gaps, in varying degrees, between the official policy documents, the teachers’ perceptions, and the children’s understandings of their musical experiences. First, images of the child in the policy articles are interpreted differently in Australia and China, and there is a marked difference between the countries in their definitions of child-centred learning in specific contexts. Finally, implications and directions for future research are suggested to facilitate children’s musical exploration in preschools.
Active music listening: Promoting music and movement in early childhood music education
Authors: Madalozzo Tiago , Madalozzo Vivian Dell’ Agnolo Barbosa
Published: December 2019

This article’s premise is that listening can be an engaging and important way for children to interact with music, using movement and their entire bodies, leading to music learning. We present the concept of active music listening defined by different authors, as a strategy for working with music appreciation involving a completely active attitude of the listener – linking a cognitive process of interpretation with the fundamental use of movement to reflect musical aspects of a determined piece. In the first section, we propose that listening is an important part of music learning, examining Swanwick’s and Boal-Palheiros and Wuytack’s works, presenting active music listening as an appreciation mode that involves high levels of attention, intention and activity from the listener. In the section that follows, we introduce active music listening as a part of the music class, reporting Zagonel’s as well as Wuytack and Boal-Palheiros’ approaches, defining musical structures that can be activated with listening exercises by more than twenty ways of activation. We discuss our way of locating these exercises on a music lesson plan. The mentioned strategies are illustrated in four ideas of active music listening exercises directed to children, selected from our daily practices. Finally, we discuss the main concepts and practices presented, with concluding remarks and implications for early childhood music education.
Microwave-Induced Bismuth Nitrate-Catalyzed Michael
Reaction of 3-Amino β-Lactams with Enones
Authors: Yadav Ram Naresh , Srivastava Ashok Kumar , Banik Bimal Krishna
Published: December 2019

Microwave-induced bismuth nitrate-catalyzed reaction of 3-amino β-lactams with unsaturated ketones is performed in order to obtain substituted amino β-lactams. Amino β-lactams were obtained through the strategy of [2+2] ketene-imine cycloaddition followed by deprotection of phthalimido β-lactams with ethylene diamine.
Trace Determination of Thorium with 6-Chloro-3-hydroxy-2- (2′-furyl)-4H-chromen-4-one as an Analytical Reagent
Authors: Garg Amita
Published: December 2019

A simple, rapid, highly sensitive and selective method for the spectrophotometric determination of micro amounts of thorium(IV) has been worked out using 6-chloro-3-hydroxy-2-(2′-furyl)-4H-chromen-4-one (CHFC) as a complexing agents in a acidified (CH3COOH, pH 3.5) medium. The yellow complex shows a maximum absorbance at 425-435 nm. The method obeys Beer′s law upto 3.5 μg Th cm-2. As many as 31 cations and 11 anions and/or complexing agents do not interfere. The method has good reproducibility and can be satis-factorily applied to the determination of thorium in samples corresponding to Australian monazite in composition.
Kinetics and Photodegradation Study of Congo Red using
Mg with Ti/Al Co-Doped ZnO Nanocomposite under UV Light
Authors: Arul S. , Senthilnathan T.
Published: December 2019

ZnO nanocomposites co-doped with dopants like Mg with Ti or Al were prepared and assigned as ZnO-A and ZnO-B. All the nanocomposites were characterized by XRD, SEM and EDX and its utility towards the photodegradation of Congo red is studied. The present study was carried out in 30 W mercury lamp fitted in batch photoreactor and the effect of decomposition was measured in UV-absorption. Nanocomposite with combination of Ti dopant (ZnO-A) exhibited effective degrading ability to aqueous Congo red solution. A solution of 100 ppm of above concentrated ZnO nanocomposite
solution was reduced nearly to 5ppm within 5 h. The photodegradation kinetics revealed that the photodegradation of aqueous Congo red follows first order reaction and showed quite comparable degradation effeciency with earlier reports.
Photocatalytic TiO2 Embedded on PET-g-PAAc Fabric by Sono-gamma Irradiation Technique
Authors: Alkhursani Sheikha A. , Madani Mohamed , Ghobashy Mohamed Mohamady
Published: December 2019

Fabrication of photocatalytic TiO2 particles onto PET-g-PAAc fabric has been succeeded by ultrasonic-gamma irradiation methods. Ultrasonic irradiation assisted for good distribution of TiO2 particles onto the surface of PET fabric in a uniform manner at ambient conditions. The product modify PET fabric was characterized by attenuated total reflection-Fourier transform infrared (ATR-FTIR) confirmed the grafting of COOH groups onto PET fabric. SEM images revealed a good dispersed and adherent obtained TiO2 particle onto PET fabric. Results obtained from X-ray diffraction indicating TiO2 (Degussa P25) in the anatase and rutile phases. The degradation process of three
different dyes remazol red, amido black and toluidine blue from aqueous solutions by
TiO2@PET-g-PAAc was investigated using modified photo reactor. It was found that decoluorization of toluidine blue was 99 % after 60 min. The reused of TiO2@PET-g-PAAc showed that the activity of TiO2@PET-g-PAAc for degradation still remained good which conclude that PET fabric makes TiO2 easily recovered, which overcomes the disadvantage of separation difficulty of common catalyst after or through degradation processing.
Catalytic Hydrogenation of Cinnamic Acid and Salicylic Acid
Authors: Shinde Sunil B. , Deshpande Raj M.
Published: December 2019

Hydrogenation of cinnamic acid and salicylic acid was carried out using 5 %Ru/C, 5 % Pd/C and Ru-Sn/Al2O3 catalyst at 493 K and 6.89 MPa of hydrogen partial pressure. Ru-Sn/Al2O3 catalyst was found to be active for hydrogenation -COOH group to give cinnamyl alcohol. The selectivity to cinnamyl alcohol was low (15 %) as absolute inhibition of C=C bond hydrogenation in cinnamic acid is challenging. 5 %Pd/C catalyst was found to hydrogenate C=C bond and aromatic ring in cinnamic acid. 5 %Ru/C catalyst was found to be least selective catalyst as it hydrogenated C=C bond, aromatic ring and -COOH group in cinnamic acid. Hydrogenation of salicylic acid is not possible at 493 K as decarboxylation of salicylic acid occurs.
Synthesis of Fluorescent Rhodium(II) and Iridium(II) Complexes Promoted by 2,6-Bistetrazolate Pyridine Ligand
Authors: Malik Rayees Ahmad , Chattree Amit
Published: December 2019

Tridentate N-donor ligand 2,6-bistetrazolate pyridine (H2pytz) has been prepared from 2,6-pyridinedicarbonitrile and used for coordination with transition metals [M(pytz)2](NHEt3)2, (M =Rh, Ir). The structure of Rh and Ir complexes was determined by UV, FT-IR, 1H NMR, XRD and elemental analysis. Moreover, the absorption spectra of complexes were shifted towards the visible region (367.2 nm for Rh and 370.8 nm for Ir). The π-excessive, lone pair nitrogen donors and extended unsaturation of ligand triggers the visible fluorescence spectra upto 528.5 nm for rhodium complex and 557.5 nm for iridium complex. The antibacterial activity results revealed that S. aureus and E. coli showed maximum response followed by K. pneumoniae and B. cereus, respectively. The maximum zone of inhibition of complexes was observed at 6 mg/mL concentration viz. S. aureus, 15.0 ± 1.15 mm for rhodium complex and E. coli, 14.6 ± 1.15 mm for iridium complex. Therefore, 2,6-bistetrazolate pyridine (H2pytz) ligand tune the photo-physical properties of the complexes as well as their applications in the biological fields.
Chemical Constituents of Ainsliaea yunnanensis Franch
Authors: Xiong Hui-Ping , Zhang Ning , Chen Wan-Sheng , Wu Xiang-Lei , Wu Zhi-Jun
Published: December 2019

Chemical investigation of the constituents of the whole herb of Ainsliaea yunnanensis Franch has led to isolation of hentriacontane (1), (6Z,9Z)-henicosa-6, 9-diene (2), methyl linoleate (3), dodecyl (Z)-9-hexadecenoate (4), heptadecan-8-ol (5), α-linolenic acid (6), (Z)-6-hexadecenoic acid (7), (Z)-10-eicosenoic acid (8), stearic acid (9), phytenoic acid (10), tripalmitolein (11), trilinolenin (12), phthalic acid bis-(2-ethylhexyl) ester (13), diisobutyl phthalate (14), 2-hydroxy-butanedioic acid-4-methyl ester (15), diacylgalactolipids I (16), β-D-galactopyranoside-1,2-bis[(1-oxo-9,12,15- octadecatrienyl)oxy]propyl (17), (2S)-1,2-O-(9Z,12Z-octadecadienoyl)-3-O-[α-D-galactopyranosyl-(1′′′′→6′′′)-O-β-D-galactopyranosyl]glycerol (18). The structures of the compounds were identified
by comparison of their NMR data with literature data.
Rapid Synthesis of Gold Nanoparticles with Ginger Waste using Microwave Irradiation
Authors: Reddy G. Bhagavanth , Rajkumar B. , Mangatayaru K. Girija , Prasad Rao T.V.D.
Published: December 2019

In the present investigation, synthesis of gold nanoparticles (AuNPs) was carried out with microwave irradiation of HAuCl4 and the extract of ginger waste. Synthesized AuNPs were characterized by various techniques including UV-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), dynamic light scattering (DLS) and transmission electron microscopy (TEM). The TEM images revealed that the nanoparticles were spherical in shape and the average particle size of the AuNPs was found to be approximately 6 ± 2 nm. The stability of gold
nanoparticles was analyzed by zeta potential measurements. A negative zeta potential value of -18.4 mV indicates the stability of the AuNPs. Further, gold nanoparticles exhibited the excellent catalytic activity in reducing 4-nitrophenol to 4-aminophenol in the presence of NaBH4 (reducing agent), and it was found to depend on the amount of AuNPs and temperature. Gold nanoparticles did not show any significant antibacterial activity against the pathogenic bacteria studied.
Enhanced Efficiency of Photogalvanic Cell based on Mixed Triphenylmethane Dyes
Authors: SINGH BIJENDRA , LAL CHHAGAN
Published: December 2019

The study focused on the enhancement of solar power generation and storage capacity of a photogalvanic cell ethylene diaminetetraacetic acid as reductant, xylene cyanol FF and patent blue as photosensitizers. This chemical system with changed concentrations, a combination electrode and a very small Pt electrode was used to fabricate a modified photogalvanic cell. The modified cell showed greatly enhanced performance in terms of photopotential (868.0 mV), photocurrent (230.0 μA), efficiency (0.64 %) and the maximum output (power) of the cell was found to be 199.64 W. The photogalvanic cell can be used at this power level for 115 min in the dark due to the storage capacity of the cell. The effects of various parameters such as pH, reductant concentration, dye concentration, diffusion length, light intensity, and electrode area on electrical output of the cell were also investigated. The current-voltage (i-v) characteristics of the cell have been studied and a mechanism for the photocurrent generation in photogalvanic cell has also been proposed.
Análise das Características Clínicas em Mulheres com Disfunções do Assoalho Pélvico Atendidas em um Ambulatório no Interior da Bahia / Analysis of Clinical Characteristics in Women with Pelvic Floor Disorders Attended in an Ambulatory of the Interior of Bahia
Authors: Piloto Aline Marques , Silva Eduarda Silva e , Souza Marilange Araújo de Almeida , Cirqueira Rosana Porto
Published: December 2019

O objetivo do presente estudo foi apresentar as características clínicas de mulheres com disfunções do assoalho pélvico atendidas pelo ambulatório de fisioterapia em uroginecologiade uma instituição privada de ensino superior da cidade de Vitória da Conquista – Bahia. Caracteriza-se como um estudo retrospectivo com caráter descritivo exploratório transversal e quantitativo, realizado de setembro de 2019 a outubro de 2019 no Núcleo de Estudos em Fisioterapia de uma instituição privada de ensino superior da cidade de Vitória da Conquista, no Sudoeste da Bahia. A maioria das mulheres analisadas tem idade maior ou igual a 60 anos (53%) com média de 77,12 ±10,2anos, eram casadas, da cor branca, se dedicam principalmente às atividades do lar e grande parte destas (45%) possuem o ensino médio completo.A paridade, histerectomia, idade avançada foram eventos frequentes nas pacientes com disfunções de assoalho pélvico. Apesar do amplo reconhecimento do problema entre os especialistas em saúde materna, estudos para avaliar a magnitude do distúrbio do assoalho pélvico são escassos. É importante que se faça mais estudos científicos acerca do tema, porque é algo que reflete diretamente com a população, sendo necessário que se entenda suas causas, tratamentos e formas deprevenções.
Fatores Epidemiológicos do Trauma em Pacientes Idosos Atendidos em Serviços de Emergência / Epidemiological Factors of Trauma in Elderly Patients Cared for in Emergency Services
Authors: Leite Pedro De Sousa , Gonçalves Daniel Victor Lima Gonçalves , Magalhães Bráulio Filgueira , Cruz Emanuela Fonseca , Cruz Amanda Fonseca , Balduino Cicero Hyttallo Carneiro , Saraiva Emanuelly Gonçalves , Alencar Thiago Moreira de
Published: December 2019

O presente artigo tem como objetivo avaliar os fatores epidemiológicos do trauma em idosos atendidos em serviços de emergência. Foi realizada uma revisão integrativa através da busca de artigos indexados na Biblioteca Virtual em Saúde, no qual após análise final foram incluídos 08 artigos. Para melhor elucidação foram formuladas duas categorias: Perfil dos idosos vítimas de trauma e Análise do evento traumático no idoso e suas implicações. Foi possível verificar que a epidemiologia do trauma no idoso atendido na emergência é multifatorial e a identificação desses componentes são consideradas ferramentas cruciais para a formulação de estratégias de prevenção.
Ditadura militar brasileira: a educação como instrumento de poder / Brazilian Military dictatorship: The Education as an instrument of Power
Authors: Medeiros Gabriel Saldanha Lula de
Published: December 2019

Este artigo tem como finalidade investigar a respeito do uso da educação como um instrumento político de controle e legitimação de poder durante a ditadura militar brasileira a partir de 1964. A metodologia consiste em uma pesquisa bibliográfica realizada no Google utilizando palavras relacionadas a cada um dos assuntos a serem abordados, além de três livros físicos. Houve o cuidado em não coletar textos que pudessem fazer apologia ao regime autoritário. Após o levantamento bibliográfico de textos produzidos por historiadores, será realizada uma discussão a fim de elucidar a questão, baseando-se na corroboração entre os dados trazidos pelos autores consultados. Conclui-se, por fim, que o regime militar utilizou a educação como instrumento político através da implementação de novas disciplinas cívicas e ufanistas, do controle da produção do material didático, da criação de licenciaturas curtas desprovidas de conhecimento científico aprofundado e do esvaziamento do conteúdo crítico das disciplinas de humanidades. Palavras-chaves: Ditadura militar; Educação; Estudos Sociais; Moral e Cívica; Abstract: This article aims to investigate about the use of education as a political instrument of control and legitimization of power during the Brazilian military dictatorship from 1964. The methodology consists of a bibliographic search on Google using words related to each subject. addressed, as well as a physical book. Care was taken not to collect texts that could make an apology to the authoritarian regime. After the bibliographic survey of texts produced by historians, a discussion will be held in order to elucidate the issue, based on the corroboration between the data brought by the authors consulted. Finally, it is concluded that the military regime used education as a political instrument through the implementation of new civic and ufanist disciplines, the control of the production of didactic material, the creation of short degrees without deep scientific knowledge and the emptying of content. critic of the humanities disciplines. Keywords: Military dictatorship; Education; Social Studies; Moral and Civism.
Leitura e escrita: Desafios e perspectivas nas séries iniciais do Ensino Fundamental / Reading and writing: Challenges and perspectives in the early grades of elementary school
Authors: Silva Marta Suely Madruga da , Alves José Jakson Amancio
Published: December 2019

A presente pesquisa bibliográfica tem por objetivo geral analisar as dificuldades da aprendizagem de leitura e escrita nas séries iniciais do ensino fundamental. O tema diz respeito a leitura e escrita no ensino fundamental. Entende-se que o domínio da leitura e escrita é de extrema relevância para a construção de um sujeito crítico. Dessa forma, para compreender melhor as dificuldades encontradas no dia a dia da práxis pedagógica, é importante considerar o que é leitura e escrita num mundo letrado, acreditamos na necessidade desta discussão por entender que o ambiente escolar tem naturalizado inúmeras questões no que se refere à prática da leitura e da escrita. A investigação se alicerça numa metodologia de natureza bibliográfica. Foi de suma importância para a compreensão do fenômeno estudado, acreditamos que o professor deve procurar meios diferenciados a serem trabalhados para superar as dificuldades de aprendizagem relacionadas a leitura e escrita+
Relação Escola e Familia: Expectativa de Uma Educação de Sucesso / School and Family Relationship: Expectation of Successful Education
Authors: Oliveira Stefânia Da Silva , Silva João Felix Da , Bento Maria Das Graças
Published: December 2019

A parceria entre família e escola é um dos principais elementos para o sucesso da educação. É comum acreditar que cada um deve cumprir seu papel separadamente. No entanto, os pais e a instituição de ensino devem estar em constante sintonia, tendo como objetivo final o pleno desenvolvimento infantil. Diferentes motivos levam a essa separação. Os pais deixam de se envolver no ambiente escolar e nas atividades e estratégias pedagógicas que envolvem a sua participação. Por outro lado, a família não sente que as suas demandas são acolhidas pelos gestores escolares. Uma das formas para reverter esse cenário é compreender que a educação não é responsabilidade restrita da escola, assim como não está confinada aos muros da instituição. A sociedade como um todo, a escola, a família e outros ambientes estão envolvidos no desenvolvimento humano. Também é importante que a família permita ao aluno resolver questões relacionadas a socialização com outros colegas no ambiente escolar, sem interferir de maneira direta.   Já a escola deve possuir uma gestão democrática, capaz de incentivar a participação constante dos pais no ambiente escolar. Essa relação deve ir além dos encontros para discussão de questões burocrática, como reclamações, boletins, reuniões, etc. É importante estar à disposição em horários mais acessíveis e demonstrar que a escola está aberta para  o diálogo e novas sugestões. Tanto escola quanto família exercem papéis diferentes na construção de conhecimento e formação de uma pessoa. É preciso entender que cada parte está afetando diretamente a formação da criança. O que acontece, em muitos casos, é o desentendimento de qual o papel de cada um no processo de formação da criança, deixando o aluno à margem desse impasse. Entretanto, o objetivo é o contrário: a melhoria da relação entre escola e família objetiva o desenvolvimento do aluno. É a família que ajuda a criança a se descobrir como indivíduo e fazer com que ela interaja com o meio, absorvendo o que for benéfico e importante. Ela pode colaborar com o processo de desenvolvimento do saber e com o desenvolvimento de hábitos para a socialização e comportamento do aluno. Cabe a família incentivar o estudo, a leitura e a construção de conhecimentos diversos e aplicados ao dia a dia, a escola deve também construir relacionamento com a família, demarcando a importância da participação ativa.
Dificuldades de Aprendizagem da Criança com Deficiência Intelectual / Learning Disabilities of Children with Intellectual Disabilities
Authors: Lima Maria de Fátima Teixeira , Sobreira Mariza Danielli Pereira
Published: December 2019

Este artigo discorre acerca da educação especial, suas limitações, os déficits cognitivos que se manifestam antes dos 18 anos de idade e afetam o funcionamento adaptativo dos alunos nas áreas de comunicação, cuidados pessoais, vida doméstica, habilidades sociais/interpessoais, uso de recursos comunitários, independência, habilidades acadêmicas, trabalho, lazer, saúde, segurança. O presente estudo tem como finalidade contribuir com a atual discussão a respeito das dificuldades de aprendizagem da criança com deficiência intelectual, e especialmente perceber essas dificuldades a partir do estudo de caso de uma estudante com Síndrome de Down da Escola de Ensino Fundamental Izabel da Luz em Juazeiro do Norte — CE, instituição de ensino regular. Foram realizadas pesquisas, observações, testes através de jogos e questionários aplicados à aluna e à família para enriquecer o trabalho. A aluna com D.I. (Deficiência Intelectual) frequenta o A.E.E. (Atendimento Educacional Especializado), em sala de Recursos Multifuncionais, sendo assistida por uma equipe multifuncional da APAE. Percebeu-se, a partir dos resultados levantados, que a criança com Síndrome de Down tem elevadas chances de um desenvolvimento saudável e de externar diversas potencialidades, sem distinção de outras crianças, se contar com apoio familiar, de saúde e educacional, longe de preconceitos e discriminações.
Obligatoriedad e inclusión en la educación secundaria: tensiones y traducciones
Authors: Cantini María Celeste , Carlachiani Camila , Hereñú Adriana
Published: December 2019

El presente trabajo constituye un avance de lainvestigación titulada: «Inclusión y obligatoriedad en laeducación secundaria: análisis de las políticas educativasnacionales y sus traducciones en la provincia de SantaFe», radicada en la Facultad de Ciencias de la Educacióny Psicopedagogía de la Universidad Abierta Interamericana,sede regional Rosario. El objetivo general de lamisma consiste en identificar y analizar las nociones deinclusión en las políticas educativas nacionales para laeducación secundaria y sus traducciones en la provinciade Santa Fe desde el 2006 hasta la actualidad.En este primer avance se realiza un análisis de lasrelaciones, diálogos, tensiones y traducciones que sedesarrollan en lineamientos de la Organización de lasNaciones Unidas para la Educación, la Ciencia y la Cultura-United Nations Educational, Scientific and CulturalOrganization (UNESCO), la Ley de Educación Nacional,las resoluciones del Consejo Federal de Educación84/09 y 93/09 y el Programa Secundario Completodesarrollado en la provincia de Santa Fe. Se analizanespecialmente los significados que subyacen, respectode las categorías inclusión y obligatoriedad en la educaciónsecundaria y los modos en que son plasmadose implementados en las políticas con el fin de dilucidarciertas continuidades y rupturas en sus sentidos.
La Educación Sexual en la Universidad. Narrativa de la experiencia del dictado del seminario 2018 FHUC-UNL
Authors: Pagura María Fernanda , Blesio Marcel Mónica , Faccioli Melisa , Lione Sacha Victoria , Weiss Pamela Vanina
Published: December 2019

El presente artículo es una narrativa sobre elSeminario Optativo «Género y Educación Sexual Integralinterpelando las ciencias y las políticas públicas» dictadodurante el 2018 en la Facultad de Humanidadesy Ciencias de la Universidad Nacional del Litoral. Semuestran trazos sobre el contexto de surgimiento de lapropuesta, decisiones pedagógicas, dilemas didácticosy algunas certezas provisorias, desde la mirada delequipo docente y recuperando las voces del estudiantadoparticipante*. La enseñanza y el aprendizaje sonprácticas humanas privilegiadas para repensar-nos enclave de derechos sexuales, develando las matrices queperpetúan el sexismo homolesbotransfóbica sobre loscuerpos, el placer y el deseo, revisitando los camposdisciplinares, las formaciones y prácticas profesionales.La propuesta está enmarcada en el enfoque de lapedagogía feminista que convoca a la horizontalidad,el trabajo colectivo y la participación con la libertadnecesaria para discutir con lo abordado, como tambiénmanifestar otras posturas. Poniendo en reflexividad eldictado del seminario se intenta demostrar que la educaciónsexual integral en la universidad abre el juegopara imaginar estrategias de construcción de justicia degénero y sexual desde el hacer profesional. Y que nosólo es deseable, sobre todo, es posible.
Análisis ontosemiótico de un problema que promueve la puesta en funcionamiento del razonamiento conjetural
Authors: Gallo Sonia , Etchegaray Silvia Catalina , Markiewicz María Elena
Published: December 2019

Este trabajo se enmarca en una investigación en Didáctica de la Matemática, cuyo objetivo general es el análisis de los procesos argumentativos para elaborar y contrastar conjeturas en la clase de matemática de 4to. año de la escuela secundaria. Para llevar a cabo nuestro objetivo seleccionamos una serie de situaciones–problemas que promueven el funcionamiento del razonamiento conjetural en los alumnos y realizamos un análisis a priori de las mismas que se constituyó en un significado de referencia pretendido para el análisis posterior de los significados personales de los alumnos al enfrentarse a este tipo de situaciones. Una de estas situaciones y sus respectivos análisis se presentarán en este trabajo.Como marco teórico–didáctico para llevar a cabo esta investigación hemos tomado herramientas del Enfoque Onto–semiótico del Conocimiento y la Instrucción matemáticos (EOS), así como también algunas investigaciones que abordan cuestiones específicas y transversales acerca del razonamiento conjetural.Los análisis realizados ponen de manifiesto la complejidad ontosemiótica de este mega proceso de producción de conjeturas, la dependencia de este proceso respecto de la diversidad de objetos y de procesos cognitivos involucrados, así como también los conflictos semióticos potenciales y efectivos, todo lo cual brinda herramientas para reflexionar sobre algunas pautas para mejorar el grado de idoneidad epistémica, cognitiva e instruccional de la situación planteada y analizada.
Towed Acoustic Countermeasures for Defending Acoustic Homing Torpedoes
Authors: George Jomon , Sinchu P. , Kumar K. Ajith , Santhana Krishnan T.
Published: December 2019

The growing torpedo threat to ships and submarines demands effective countermeasures for defence. Detection, classification and localisation of an attacking torpedo is the first step towards launching effective countermeasures. Studies are on the rise to use the existing sonar systems to detect torpedoes and subsequently use countermeasures. The use of towed array sonar systems for torpedo detection and acoustic counter measures are the most recent and not reported much in open literature. This paper presents a modular acoustic counter measure approach using towed decoy against acoustic homing torpedoes. Describes the technologies and algorithms required for different modes of towed decoy, which is effective against both active and passive acoustic homing torpedoes. Towed decoy signal generation schemes and their realisation using digital signal processing hardware are outlined in this paper.
Heavy Military Land Vehicle Mass Properties Estimation Using Hoisting and Pendulum Motion Method
Authors: Risby M. S. , Suhaimi Khalis , Sheng Tan Kean , M. S. Arif Syafiq , N Mohd Hafizi
Published: December 2019

Mass properties such as the centre of gravity location, moments of inertia, and total mass are of great importance for vehicle stability studies and deployment. Certain parameters are required when these vehicles need to be arranged inside an aircraft for the carrier to achieve proper mass balance and stability during a flight. These parameters are also important for the design and modelling process of vehicle rollover crash studies. In this study, the mass properties of a military armoured vehicle were estimated using hoisting and pendulum method. The gross total weight, longitudinal and vertical measurements were recorded by lifting the vehicle using a mobile crane and the data were used to estimate the centre of gravity. The frequency of vehicle oscillation was measured by applying swing motion with a small angle of the vehicle as it is suspended on air. The centre of gravity and mass moment of inertia were calculated using the vector mechanics approach. The outcomes and limitations of the approach as discussed in details.
Synta-Pragmatics of The Conjunctions in Kurdish Language
Authors: Rasoul Salah H. , Kareem Omar M.
Published: December 2019

The title of this research is (The Syntax-Pragmatics of the Conjunctions in Kurdish Language). The conjunctions have a great role in language by connecting between words, phrases and sentences. They also have a significant role in deletion of reduction extra elements. These are some examples of them in Kurdish; ‘belam, û, belku, ne…ne, keçî, and so on’. They have a great role in clarifying the aims of the speaker and its ideas. The study consists of two main parts and the bibliography. In the first part of the research, the syntactical role of the conjunctions is shown. Furthermore, the places of the conjunctions in compound sentences are explained. According to the Kurdish language grammatical rules, there is not a specified gap for the conjunctions, and their places are changeable within compound sentences. Besides that, compound sentences also categorized according their dual or multi branches. Each part of the compound sentences have its importance, and their level are not same. The second part of the research deals with the pragmatics role of the conjunction. The focus is on the new meaning that are made in collocation with other parts of the sentence to send the message of the speaker. This is because their meaning is very related with the context. Eventually, the conclusion is drawn.
Examining teachers’ opinions on social Justice leadership
Authors: Koçak Seval , Özdemir Murat
Published: December 2019

Social justice leadership is a leadership approach that focuses on utilizing educational opportunities of disadvantaged students equally with others. The purpose of this research is to examine school principals' social justice leadership behaviors according to teacher's views. It was designed in terms of qualitative research method. The data were collected through focus group interviews with six teachers and individual interviews with 16 teachers. Semi-structured interview form was used for interviews. The data were analyzed by descriptive analysis. The themes were built on the dimensions of social justice leadership: supporting disadvantaged students, inclusion and critical consciousness. Based on the findings, it is concluded that the school principals concentrate more on the dimension of supporting disadvantaged students and the behaviors displayed in the other two dimensions are limited. ​Extended English summary is in the end of Full Text PDF (TURKISH) file. Özet Sosyal adalet liderliği,  dezavantajlı öğrencilerin eğitim olanaklarından diğerleri ile eşit düzeyde yararlanmalarına odaklanan bir liderlik yaklaşımıdır. Bu araştırmanın amacı, okul müdürlerinin sosyal adalet liderliği davranışlarını öğretmen görüşlerine göre incelemektir. Çalışma nitel araştırma yöntemine göre desenlenmiştir. Veriler altı öğretmenle gerçekleştirilmiş olan odak grup görüşmesi ve 16 öğretmenle yapılmış olan birebir görüşmelerle toplanmıştır. Görüşmelerde yarı yapılandırılmış görüşme formu kullanılmıştır. Veriler betimsel analiz ile çözümlenmiştir. Temalar sosyal adalet liderliğinin, dezavantajlı öğrencilerin desteklenmesi, kapsama/kaynaştırma ve eleştirel bilinç boyutları çerçevesinde oluşturulmuştur. Bulgular ışığında okul müdürlerinin, dezavantajlı öğrencilerin desteklenmesi boyutuna görece daha fazla yoğunlaştıkları, diğer iki boyutta sergilenen davranışların sınırlı olduğu genel sonucuna ulaşılmıştır
Fostering multidisciplinary research on interactions between chemistry, biology, and physics within the coupled cryosphere-atmosphere system
Authors: Thomas Jennie L. , Stutz Jochen , Frey Markus M. , Bartels-Rausch Thorsten , Altieri Katye , Baladima Foteini , Browse Jo , Dall’Osto Manuel , Marelle Louis , Mouginot Jeremie , Murphy Jennifer G. , Nomura Daiki , Pratt Kerri A. , Willis Megan D. , Zieger Paul , Abbatt Jon , Douglas Thomas A. , Facchini Maria Cristina , France James , Jones Anna E. , Kim Kitae , Matrai Patricia A. , McNeill V. Faye , Saiz-Lopez Alfonso , Shepson Paul , Steiner Nadja , Law Kathy S. , Arnold Steve R. , Delille Bruno , Schmale Julia , Sonke Jeroen E. , Dommergue Aurélien , Voisin Didier , Melamed Megan L. , Gier Jessica
Published: December 2019

The cryosphere, which comprises a large portion of Earth’s surface, is rapidly changing as a consequence of global climate change. Ice, snow, and frozen ground in the polar and alpine regions of the planet are known to directly impact atmospheric composition, which for example is observed in the large influence of ice and snow on polar boundary layer chemistry. Atmospheric inputs to the cryosphere, including aerosols, nutrients, and contaminants, are also changing in the anthropocene thus driving cryosphere-atmosphere feedbacks whose understanding is crucial for understanding future climate. Here, we present the Cryosphere and ATmospheric Chemistry initiative (CATCH) which is focused on developing new multidisciplinary research approaches studying interactions of chemistry, biology, and physics within the coupled cryosphere – atmosphere system and their sensitivity to environmental change. We identify four key science areas: (1) micro-scale processes in snow and ice, (2) the coupled cryosphere-atmosphere system, (3) cryospheric change and feedbacks, and (4) improved decisions and stakeholder engagement. To pursue these goals CATCH will foster an international, multidisciplinary research community, shed light on new research needs, support the acquisition of new knowledge, train the next generation of leading scientists, and establish interactions between the science community and society.
An appraisal of characteristic mechanical properties and microstructure of friction stir welding for Aluminium 6061 alloy – Silicon Carbide (SiCp) metal matrix composite
Authors: Sabry Ibrahim , El-Kassas A. M.
Published: December 2019

It is expected that the demand for Metal Matrix Composite (MMCs) will increase in these applications in the aerospace and automotive industries sectors, strengthened AMC has different advantages over monolithic aluminium alloy as it has characteristics between matrix metal and reinforcement particles.  However, adequate joining technique, which is important for structural materials, has not been established for (MMCs) yet. Conventional fusion welding is difficult because of the irregular redistribution or reinforcement particles.  Also, the reaction between reinforcement particles and aluminium matrix as weld defects such as porosity in the fusion zone make fusion welding more difficult. The aim of this work was to show friction stir welding (FSW) feasibility for entering Al 6061/5 to Al 6061/18 wt. % SiCp composites has been produced by using stir casting technique. SiCp is added as reinforcement in to Aluminium alloy (Al 6061) for preparing metal matrix composite. This method is less expensive and very effective. Different rotational speeds,1000 and 1800 rpm and traverse speed 10 mm \ min was examined. Specimen composite plates having thick 10 mm were FS welded successfully. A high-speed steel (HSS) cylindrical instrument with conical pin form was used for FSW. The outcome revealed that the ultimate tensile strength of the welded joint (Al 6061/18 wt. %) was 195 MPa at rotation speed 1800 rpm, the outcome revealed that the ultimate tensile strength of the welded joint (Al 6061/18 wt.%) was 165 MPa at rotation speed 1000 rpm, that was very near to the composite matrix as-cast strength. The research of microstructure showed the reason for increased joint strength and microhardness. The microstructural study showed the reason (4 %) for higher joint strength and microhardness.  due to Significant   of SiCp close to the boundary of the dynamically recrystallized and thermo mechanically affected zone (TMAZ) was observed through rotation speed 1800 rpm. The friction stir welded ultimate tensile strength Decreases as the volume fraction increases of SiCp (18 wt.%).