bluuebunny/crossref_metadata_2025 huggingface dataset:
Iklim kelas di Sekolah Dasar Negeri 10 Ganting, Koto Tangah, Kota Padang
Authors: Hadiyanto Hadiyanto , Martini M.
Published: May 2018

Penelitian kolaborasi ini bertujuan untuk mengetahui dan membandingkan iklim kelas yang dialami (actual climate) dengan iklim kelas yang diinginkan (preferred climate) peserta didik di kelas IV, V dan VI Sekolah Dasar Negeri 10 Ganting, Kecamatan Koto Tangah Kota Padang, Sumatera Barat. Responden penelitian berjumlah 78 orang, masing-masing peserta didik di ketiga kelas tersebut merespon dua macam angket. Alat ukur iklim kelas actual form diadministrasikan terlebih dahulu untuk mengetahui iklim kelas yang dialami peserta didik, kemudian diikuti dengan alat ukur iklim kelas preferred form untuk mengukur iklim kelas yang diinginkan peserta didik.  Setelah data yang terkumpul diolah dan dianalisis maka dapat diketahui bahwa beberapa skala iklim kelas yang dialami (actual climate) peserta didik kelas IV, V dan VI SD 10 Ganting tidak jauh berbeda dengan iklim kelas diinginkan (preferred climate).  Namun demikian, skala cohesiveness dan satisfaction pada preferred climate di kelas V lebih tinggi dibandingkan dengan yang dialami peserta didik (actual climate). Untuk itu, diperlukan langkah-langkah treatment untuk meningkatkan kedua skala tersebut agar iklim kelas sesuai dengan yang diinginkan peserta didik. Kata kunci: iklim kelas, sekolah dasar, keakraban, kepuasan, demokrasi, kecepatan, kesulitan, formalitas CLASSROOM CLIMATE AT PUBLIC ELEMENTARY SCHOOL 10 GANTING, KOTO TANGAH, KOTA PADANGAbstractThis collaborative study aims to determine and compare the climate of the class experienced (actual climate) with the desired class climate (preferred climate) by students in class IV, V and VI at Public Elementary School Number 10, Sub-District Koto Tangah Padang, West Sumatra. Research respondents were 78 people, each student in the three classes responded to two kinds of questionnaires. The actual form of classroom climate instrument was administered first to know class climate experienced by students, then followed by preferred form of classroom climate instrument to measure climate of class desired by students. After the collected data were processed and analyzed it can be seen that some actual classroom climate of class IV, V and VI of Public Elementary School No. 10 Ganting are not much different from the preferred climate. Nevertheless, the scale of cohesiveness and satisfaction in preferred climate in class V is higher than that actual climate. Therefore, treatment steps are needed to improve both scales so that the classroom climate in accordance with the desired students.Keywords: class climate, elementary school, familiarity, satisfaction, democracy, speed, difficulty, formality
Pengaruh kinerja kepala sekolah terhadap keberhasilan manajemen berbasis sekolah melalui partisipasi masyarakat di SMP
Authors: Putri Novi Hardini , Wibowo Udik Budi
Published: May 2018

Penelitian ini bertujuan untuk mengukur pengaruh kinerja kepala sekolah terhadap keberhasilan manajemen berbasis sekolah melalui partisipasi masyarakat di SMP Negeri se-Kabupaten Karimun, Kepulauan Riau. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian korelasional. Penelitian dilakukan terhadap populasi dengan jumlah 39 kepala SMP Negeri se-Kabupaten Karimun, Kepulauan Riau. Pengumpulan data menggunakan instrumen angket yang telah diuji validitasnya dengan korelasi product moment dan uji reliabilitas dengan menggunakan alpha-cronbach. Adapun analisis datanya dilakukan secara deskriptif dan analisis jalur dengan taraf signifikansi 0,05. Hasil analisis data secara deskriptif ditemukan bahwa kinerja kepala sekolah, partisipasi masyarakat dan keberhasilan MBS termasuk dalam kategori sedang yakni: kinerja kepala sekolah = 46,2%, partisipasi masyarakat = 64,1% dan keberhasilan MBS = 41%. Sedangkan dari analisis jalur menunjukkan bahwa terdapat pengaruh yang positif dan signifikan terhadap keberhasilan MBS di SMP Negeri Kabupaten Karimun. Selanjutnya ditemukan pengaruh tidak langsung dari kinerja kepala sekolah terhadap keberhasilan MBS melalui partisipasi masyarakat = 57,3%.Kata kunci: kinerja kepala sekolah, partisispasi masyarakat, keberhasilan manajemen berbasis sekolah THE INFLUENCE OF THE PRINCIPALS’ PERFORMANCES ON THE SUCCESS OF SCHOOL-BASED MANAGEMENT THROUGH COMMUNITY PERFORMANCE AT JUNIOR SECONDARY SCHOOLSAbstractThis study aims to find out the influence of the principals’ performances on the success of school-based management through community participation at Public Junior Secondary Schools in Karimun Regency, Kepulauan Riau. This study used a quantitative approach through a correlational research design. 39 principals from all Public Junior Secondary Schools in Karimun Regency were involved as population. The data were collected through questionnaires. The validity of the instrument was analyzed through product moment and the reliability through alpha-Cronbach. Then, the data were analyzed descriptively by using path analysis with the significance level of 0.05. The finding showed that the performances of the principals’ performances, and community participation on the success of MBS were included into sufficient category. They were seen from the principals’ performances = 46.2%, community participation = 64.1%, and the success of MBS = 41%. Meanwhile, from path analysis, there was a positive influence and significance on the success of MBS at Public Junior Secondary Schools in Karimun Regency. In addition, there was an indirect influence of the principals’ performances on the success of MBS through community participation = 57.3%;Keywords: principals’ performances, community participation, the success of school-based management
PEDAGOGO GENERALISTA – PROFESSOR DE EDUCAÇÃO INFANTIL: IMPLICAÇÕES E DESAFIOS DA FORMAÇÃO
Authors: Barbosa Maria Carmen Silveira , Cancian Viviane Ache , Weshenfelder Noeli Valentina
Published: May 2018

O curso de Pedagogia vem ampliando seu espectro formativo nos últimos 30 anos. Da formação de especialistas para as escolas e o sistema educacional, aderiu à formação do pedagogo generalista e licenciado para o magistério nos Anos Iniciais, Educação Infantil e Educação de Jovens e Adultos. A mudança da exigência de habilitação de professores do Ensino Médio para o Ensino Superior e as Diretrizes Curriculares Nacionais para o Curso de Pedagogia (DCNP) com ênfase na docência não acompanharam necessidades de aprofundamento de formação docente. Este artigo propõe analisar as DCNP e as diretrizes de formação de professores, e a formação generalista do pedagogo licenciado em Pedagogia, em relação às capacidades profissionais exigidas do docente da Educação Infantil, definidas pelas Diretrizes Curriculares Nacionais para Educação Infantil (DCNEI). A metodologia baseia-se na análise de conteúdo dos documentos legais balizadores da formação docente e da Educação Infantil. Observou-se que essas diretrizes, com suas múltiplas funcionalidades, não têm atendido às expectativas que as DCNEI apontam para o exercício qualificado da docência em creche e pré-escola
FORMAÇÃO INICIAL PARA A DOCÊNCIA NA EDUCAÇÃO INFANTIL: INDICADORES DA PRODUÇÃO ACADÊMICA
Authors: Côco Valdete , Vieira Maria Nilceia de Andrade , Giesen Karina Fátima
Published: May 2018

Este texto discute a formação inicial para a docência na Educação Infantil, com o objetivo de analisar indicadores decorrentes de produções acadêmicas recentes sobre a temática. Ancorado em pressupostos teórico-metodológicos bakhtinianos, o presente estudo caracteriza-se por uma abordagem qualitativa de caráter exploratório. Para a produção de dados, optou-se por procedimento de levantamento bibliográfico em periódicos nacionais. A sistematização dos resultados constituiu-se por apuração de dados quantitativos e análise dos enunciados expressos nos artigos selecionados.Essa interlocução evidenciou a relevância da dimensão pessoal na formação para a profissão docente, com destaque para a necessidade de parceria entre docentes da graduação e os estudantes e para a discussão dos desafios vinculados às políticas de reconhecimento e valorização do professor, explicitando a complexidade dos processos de formação docente.
Vulnerabilidad y riesgo como conceptos indisociables para el estudio del impacto del cambio climático en la salud
Authors: Díaz Caravantes Rolando Enrique
Published: May 2018

En diversas investigaciones, los conceptos de vulnerabilidad y riesgo se han estudiado por separado, como si no existiera una relación entre ellos. De aquí emerge nuestro objetivo de examinar las ventajas analíticas de estudiar ambos dentro de un mismo marco conceptual. Para ello, se revisaron definiciones de vulnerabilidad y riesgo utilizadas en distintos campos como el social, la salud pública y el impacto del clima y desastres. Las implicaciones analíticas se ilustran mediante el caso de las altas temperaturas en el noroeste de México. En los resultados se hace patente que la disociación entre vulnerabilidad y riesgo conduce a que se minusvaloren las capacidades analíticas de ambos conceptos. En tanto su integración proporciona herramientas metodológicas para desarrollar acciones precautorias ante las altas temperaturas, como la identificación de los grupos vulnerables en un entorno geográfico específico y, a su vez, posibles caminos para reducir la exposición y la vulnerabilidad ante el cambio climático.
Producción de leche de vacas Criollo, Guzerat y sus cruzas recíprocas F1 y su relación con el peso al destete de las crías
Authors: Martínez Velázquez Guillermo
Published: May 2018

Se analizaron 208 registros obtenidos entre 2001 y 2003 de vacas Guzerat (G), Criollo (C), Guzerat x Criollo (GC) y Criollo x Guzerat (CG) para estimar efectos genéticos directos (gi), maternos (gm) y de heterosis (hi) sobre día de máxima producción (DMP), producción máxima en lactancia (PML), producción total de leche (PTL), producción diaria de leche (PDL), persistencia de la lactancia (PER) y para estimar relaciones entre PTL y peso al destete ajustado a 210 días de edad (PA210). La curva de lactancia se estimó mediante la ecuación Y(n)=n/aekn. Las variables se analizaron con el método de cuadrados mínimos y modelos mixtos. Los modelos incluyeron grupo genético, número, año y época de parto, sexo, la covariable peso al nacer e interacciones simples. Se estimaron correlaciones y regresiones entre PA210 y PTL. Las vacas GC fueron superiores a vacas C y G para PML, PTL y PDL (P<0.10). La hi influyó (P<0.05) PML, PTL y PDL. Los gi favorecieron a G (P<0.05) en PML, PTL y PDL. Las correlaciones fueron importantes (P<0.05) para todos los grupos genéticos. Los coeficientes de regresión fueron 0.044±0.014 (C), 0.037±0.014 (GC), 0.032±0.009 (G) y 0.027±0.015 (CG). Crías de vacas C, GC, G y CG consumieron 22.5, 27.3, 30.9 y 37.3 kg de leche por cada kilogramo de peso al destete. Las diferencias estimadas en la eficiencia de utilización de la leche consumida por las crías sugieren que la producción de becerros con vacas C, GC, G y CG debe considerar estrategias diferentes de alimentación durante la lactancia.
OFICINA DESVENDANDO O CORPO HUMANO: A EDUCAÇÃO NÃO FORMAL NO ENSINO DE CIÊNCIAS MORFOLÓGICAS PARA ALUNOS DA EDUCAÇÃO BÁSICA
Authors: Lopes Rejan Daniela Cristina , Bologna Soares de Andrade Mariana Aparecida , De Almeida Araújo Eduardo José
Published: May 2018

A Educação Não Formal é aquela que promove aprendizagem de conteúdos da Educação Formal em espaços como museus, oficinas, com atividades direcionadas e com objetivo definido. O objetivo deste trabalho foi analisar as percepções dos alunos a respeito de uma atividade de Educação Não Formal. Para isto, realizou-se um estudo do projeto de extensão “Em busca de Novos Talentos: o ensino de ciências morfológicas para professores e alunos da Educação Básica, oferecido há 7 anos, pelo Departamento de Histologia da Universidade Estadual de Londrina. A análise qualitativa envolveu coleta de dados utilizando questionários e categorização das respostas. Esperava-se que os dados coletados permitissem inferências sobre o conteúdo abordado nas oficinas, as relações interpessoais, o espaço utilizado e também, fazer reflexões sobre os aspectos do ensino de Ciências em espaços não formais. Com os resultados pode-se afirmar que a oficina oferece todas as possibilidades que caracterizam uma atividade de Educação Não Formal.
Hyperbaric oxygen for late sequelae of carbon monoxide poisoning enhances neurological recovery: case report
Authors:   Hyperbaric Medicine Center, Nebraska Medicine, Omaha, Nebraska U.S., Keim Lon W , Koneru Sreekanth ,   Department of Neurological Sciences, University of Nebraska Medical Center, Nebraska Medical Center, Omaha, Nebraska U.S., Ramos Vesper Fe Marie ,   Department of Neurological Sciences, University of Nebraska Medical Center, Nebraska Medical Center, Omaha, Nebraska U.S., Murr Najib ,   Department of Neurological Sciences, University of Nebraska Medical Center, Nebraska Medical Center, Omaha, Nebraska U.S., Hoffnung Deborah S. ,   Department of Neuropsychology, CHI Health, Omaha, Nebraska U.S., Murman Daniel L. ,   Department of Neurological Sciences, University of Nebraska Medical Center, Nebraska Medical Center, Omaha, Nebraska U.S., Cooper Jeffrey S. ,   Hyperbaric Medicine Center, Nebraska Medicine, Omaha, Nebraska U.S., Torres-Russotto Diego ,   Department of Neurological Sciences, University of Nebraska Medical Center, Nebraska Medical Center, Omaha, Nebraska U.S.
Published: May 2018

Neuropsychiatric sequelae have been reported in 15%-45% of survivors of carbon monoxide (CO) poisoning. Hyperbaric oxygen (HBO2) therapy reduces the incidence of cognitive and neurological a dysfunction. The efficacy of providing HBO2 beyond the first one to two days after initial insult is unknown. However, some evidence exists for the benefit of this treatment. We report on treating a patient 14 months after CO injury, who responded with markedly improved neurologic status. A 27-year-old scholar was found comatose due to CO poison- ing (carboxyhemoglobin = 31.7%). He received five acute HBO2 treatments. After discharge, he developed chorea, Parkinsonism, dystonia, memory loss, slowed processing speed and verbal fluency, leaving him disabled. After the patient reached a clinical plateau, HBO2 was tried again at 90 minutes at 2.4 ATA plus air breaks. Neuropsychological testing was performed at baseline and after each 20 HBO2 cycles, five of which were per- formed during the period from 14-22 months after CO exposure. After the first 20 treatments, Parkinsonism and dystonia improved. After 40 sessions, further improvements were seen on mental speed, verbal fluency, and fine motor movements. The outcome following 100 treatments was that the patient regained independence, including the ability to drive and to become gainfully employed. Our case calls into question the concept that HBO2 therapy has no role during the chronic phase of CO brain injury. Randomized clinical trials should be considered to evaluate the therapeutic efficacy of HBO2 in patients with neurological sequelae following CO injury.
Management of central retinal artery occlusion following successful hyperbaric oxygen therapy: case report
Authors:   Joint Trauma System, San Antonio, Texas U.S., Butler Frank K. , Hagan Catherine ,   Naval Hospital Jacksonville, Jacksonville, Florida U.S., Van Hoesen Karen ,   University of California at San Diego, San Diego, California U.S., Murphy-Lavoie Heather ,   Louisiana State University, New Orleans, Louisiana U.S.
Published: May 2018

Objective: This case report presents a patient with central retinal artery occlusion (CRAO) who was successfully treated with hyperbaric oxygen (HBO2) but subsequently suffered a recurrence of his visual loss. Methods: CRAO may be treated successfully with HBO2 if treatment is undertaken promptly after the onset of vision loss. The goal ofHBO2 therapy is to oxygenate the ischemic inner retinal layers via diffusion from the hyperoxygenated choroidal circulation until recanalization of the central retinal artery occurs. Results: A 71-year-old man presented with hand motion vision and fundus findings of CRAO in his left eye. Treatment with HBO2 was initiated approximately 9.5 hours after loss of vision. The patient experienced return of vision to a near-normal level during HBO2. His vision loss recurred, however, 15 minutes after the HBO2 session. There was a delay to follow-up HBO2 treatments, and the improvement of vision that resulted from these subsequent HBO2 sessions was much less than that experienced during his initial HBO2 treatment. Conclusions: Recovery of vision during initial HBO2 treatment indicated that this patient’s retina had not yet suffered irreversible ischemic damage at that point in time. CRAO patients with a good result from initial HBO2 treatment should be admitted to a stroke center and should have their visual status monitored hourly. Should vision loss recur, ag- gressive use of intermittent 100% normobaric and hyperbaric oxygen is indicated to preserve retinal function until central retinal artery recanalization occurs. An evidence-based management plan for such patients is presented.
Book review: Gas Bubble Dynamics in the Human Body
Authors: Goldman Saul , Solano-Altamirano Manuel , LeDez Kenneth
Published: May 2018

Book Review
A case-control questionnaire survey of decompression sickness risk in Okinawa divers
Authors:   1 Orthomedico Inc., 2F Sumitomo Fudosan Korakuen Bldg.,1-4-1 Koishikawa,  Bunkyo-ku, Tokyo, 112-0002, Japan, Suzuki Naoko , Yagishita Kazuyoshi ,   Hyperbaric Medical Center, Medical Hospital of Tokyo Medical and Dental University,  1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan, Enomoto Mitsuhiro ,   Hyperbaric Medical Center, Medical Hospital of Tokyo Medical and Dental University,  1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan, Kojima Yasushi ,   Hyperbaric Medical Center, Medical Hospital of Tokyo Medical and Dental University,  1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan, Oyaizu Takuya ,   Hyperbaric Medical Center, Medical Hospital of Tokyo Medical and Dental University,  1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan, Shibayama Masaharu ,   Hyperbaric Medical Center, Medical Hospital of Tokyo Medical and Dental University,  1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan, Yamamoto Kazuo ,   Orthomedico Inc., 2F Sumitomo Fudosan Korakuen Bldg.,1-4-1 Koishikawa,  Bunkyo-ku, Tokyo, 112-0002, Japan
Published: May 2018

Background: Decompression sickness (DCS) is a rare condition that is often difficult to diagnose in deep-sea divers. Because of this, prevention and early diagnosis are important. In this case-control study, we examined the risk and preventive factors associated with DCS. Methods: Our original questionnaire survey was conducted among 269 recreational divers in Okinawa. Divers who were diagnosed with DCS by a physician (n = 94) were compared with healthy recreational divers (n = 175). The questionnaire consisted of 30 items and included a dive profile. Odds ratios and multiple logistic regression analysis were used to estimate the relative risk of DCS. Results: Logistic regression analysis revealed the following risk factors for DCS: a past history of DCS, drinking alcohol the evening before diving, indicating decompression stops, cold exposure after the dive, and maximum depth. Preventive factors included hydration before the dive, deep stops, safety stops and using nitrox gas. The results were reliable according to the Hosmer-Lemeshow and omnibus tests. Conclusion: We identified certain risk factors, together with their relative risks, for DCS. These risk factors may facilitate prevention of DCS among Okinawa divers.
As fontes de informação digitais em bibliotecas universitárias: Um estudo a partir das universidades de caráter público e privado do estado do Espírito Santo (ES)
Authors: Cerqueira Daire Strite de Azevedo , Nascimento Ricardo Soares do , Mata Marta Leandro da
Published: May 2018

As bibliotecas universitárias têm procurado acompanhar essas inovações para facilitar o acesso à informação aos seus usuários, oferecendo diversos recursos, serviços e produtos, incluindo as fontes de informação digitais. Neste sentido, este estudo teve como objetivo investigar as fontes de informação digitais, com ênfase nas bases de dados e e-books, disponibilizados aos usuários de duas bibliotecas universitárias, públicas e privadas, do Estado do Espírito Santo (ES). Tendo-se como objetivos específicos identificar os recursos digitais adquiridos pelas bibliotecas; verificar a forma de disponibilização; verificar se possui atividades de capacitação de usuários para o seu uso, mostrando possíveis diferenças entre essas bibliotecas. Para tanto, realizou-se uma pesquisa exploratória com análise qualitativa dos resultados. Os resultados mostram que essas bibliotecas vêm adquirindo fontes de informação digitais para disponibilizar à comunidade acadêmica. Entretanto, existem poucos recursos direcionados aos e-books. São realizadas atividades de formação de usuários, que contribui para a promoção e uso de tais fontes.
As temáticas sobre o negro na Ciência da Informação brasileira
Authors: Ortolan Luciana Pereira Vicente , Silva Marcio Ferreira da , Alves Roberta Caroline Vesu , Martínez-Ávila Daniel
Published: May 2018

A compreensão da forma como os negros são representados e a invisibilidade da sua temática motivou a investigação desse assunto em Ciência da Informação. O problema de pesquisa consistiu em averiguar, por meio de publicações científicas, as características da abordagem a temática sobre o negro em Ciência da Informação no Brasil. O objetivo da pesquisa propôs identificar como as temáticas relacionadas ao negro estão sendo representadas na literatura científica brasileira em Ciência da Informação, por meio de palavras-chave, dos autores mais produtivos e sua localidade, e as principais revistas científicas e sua localidade. A metodologia consistiu em pesquisa bibliométrica, com quantificação de dados bibliográficos da Base de Dados em Ciência da Informação (BRAPCI). Os resultados apontaram os autores e revistas que mais publicaram sobre a temática do negro na literatura científica brasileira em Ciência da Informação e, ainda, as palavras-chave mais frequentes relacionadas à temática. As palavras-chave dos artigos pesquisados representam os termos e as temáticas sobre o negro na literatura científica brasileira em Ciência da Informação.
Altmetria: Uma nova lente para os estudos métricos da informação
Authors: Santos Paula Wivianne Quirino Dos , Albuquerque João Pedro Silva de
Published: May 2018

A partir do conceito de informação e ciclo da informação proposto por Le Coadic (1994) é realizada a fundamentação acerca da importância dos Estudos Métricos da Informação (EMI’S) para o processo de comunicação científica. Posteriormente é realizada a discussão de como o desenvolvimento da comunicação científica e o surgimento e evolução da internet levam os Estudos Métricos da Informação da Bilbliometria até a Altmetria. Por fim é debatida a inserção da Altmetria como campo para os EMI’S e o valor que ela apresenta para esta área.
Effect of structure on extraction behavior of praseodymium with a series of unsymmetrical diglycolamides from hydrochloric acid
Authors: Han Jixun , Cai Xucan , Sun Guoxin , Cui Yu
Published: May 2018

The extraction behavior of Pr(III) has been investigated using four kinds of unsymmetrical diglycolamide (DGA) extractants having different alkyl chain lengths, namely N,N?-dimethyl-N,N?-didodecyldiglycolamide (DMDDdDGA), N,N?-diethyl-N,N?-didodecyldiglycolamide (DEDDdDGA), N,N?-dipropyl-N,N?-didodecyldiglycolamide (DPDDdDGA) and N,N?-dibutyl- N,N?-didodecyldiglycolamide (DBDDdDGA). The effect of the alkyl chain of amidic N atoms in DGAs on the extraction ability of Pr(III) is discussed. The extraction of hydrochloric acid and Pr(III) from hydrochloric acid medium by DGAs in sulfonated kerosene, toluene and octanol was studied. The effect of extractant concentration and diluents on the distribution ratio (D) of Pr(III) was investigated to understand the extraction mechanism. Pr(III) and Fe(III) can be separated very well by DMDDdDGA and DBDDdDGA diluted by toluene in hydrochloric acid solution. IR spectra of extracted species of DGA?HCl and DGA?Pr(III) were recorded to study the structure of the extracted species.
O processo de aprendizagem do cálculo oral de sujeitos com diferentes níveis de escolaridade e contextos sociais
The learning process of oral calculus of subjects with different levels of schooling and social contexts
Authors: Silveira Maria Eduarda De Melo , Moraes Glaucia Cabral
Published: May 2018

Este artigo apresenta um estudo realizado na disciplina de Trabalho de Curso em Matemática, do Curso de Matemática – Licenciatura, da Univesidade de Santa Cruz do Sul – UNISC, o qual originou-se a partir do intuito de estudar como se constitui a aprendizagem em diferentes níveis de escolaridade em relação aos cálculos diários presentes em seus contextos, desde sujeitos que frequentaram a escola por um curto período até os que possuem formação básica completa. Os procedimentos adotados basearam-se no estudo de caso, na aplicação de  questionários e na problematização de uma situação prática com os sujeitos da pesquisa, possibilitando verificar o cenário em que estão inseridos e quais as relações que são estabelecidas entre a matemática, suas aplicações e vivências.This article presents a study performed for the graduation task of the course of Mathematics in the University of Santa Cruz do Sul and aims to study how learning is acheved at different levels of education in relation to the daily calculations present in their contexts: from subjects who attended school for a short period to those with complete basic education. The study is based on qualitative research, application of questionnaires and problematization of a practical situation with the participants, taking in consideration methods such as case study. From this study one may observe that the people dominate the mathematical contents that are necessary to them, besides that this learning is a construction from the social coexistence.
Situações-problema elaborada por professores dos anos iniciais
Situations problem in developed by teachers in the early years
Authors: Santos Jaqueline Santana de Souza , Merlini Vera Lucia
Published: May 2018

O presente artigo tem por objetivo comparar as situações-problema de combinatória, elaboradas pelos professores dos anos iniciais antes e depois de uma formação continuada. Essa formação esteve alicerçada no Campo Conceitual Multiplicativo de Vergnaud, concomitantemente às ideias do profissional reflexivo apresentadas por Schön. A pesquisa possui uma abordagem metodológica qualitativa. A metodologia da formação é a espiral REPARE de Magina, atrelada à formação com dimensões colaborativas. No que se refere à análise dos dados é possível perceber que, mesmo após a formação continuada, há uma quantidade restrita de situações-problema, contudo na segunda elaboração os professores contemplaram as duas possíveis situações-problema de combinatória, qual seja a de parte-todo e a de parte-parte.This article aims to compare the combinatorial problem situations, developed by teachers in the early years before and after training teachers. This continuing training was founded on the of Conceptual Field Multiplicative Vergnaud, concomitantly to the reflective profissional ideas presented by Schön. The research has a qualitative approach. The methodology of training is REPARE spiral Magina, linked to training with collaborative dimensions. As regards the analysis of the data we can see that even after continuing training, there is a restricted amount of problem situations, but in the second preparation teachers encompassed the two possible types of combinatorial problem situations, which is the part-whole and part-part.
Aprehensiones y modificaciones en el registro gráfico dinámico del paraboloide elíptico
Apprehensions and modifications into the Dynamic-Graphical register of the elliptical paraboloid
Authors: Peñaloza Vara Tito Nelson , Flores Salazar Jesus Victoria
Published: May 2018

El presente artículo tiene como objetivo estudiar las aprehensiones y modificaciones del paraboloide elíptico en el Registro Gráfico Dinámico (RGD) por medio del ambiente de representaciones dinámicas Geogebra 3D. Para ello, tomamos como base aspectos de la investigación previa, realizada por el primer autor, sobre visualización del paraboloide elíptico que se fundamenta en la Teoría de Registros de Representación Semiótica de Duval, configuramos el RGD del paraboloide elíptico y analizamos cómo se desarrollan sus aprehensiones y modificaciones. Concluimos afirmando que el desarrollo de aprehensiones en tareas que involucran la noción de paraboloide elíptico puede ser realizado en el RGD y entendemos que es posible investigar otros objetos matemáticos que puedan ser representados en dicho registro. This paper aims at studying the apprehensions and modifications of an elliptic paraboloid in the Dynamic-Graphic Register (DGR) through the environment of dynamic representations Geogebra 3D. To do that, we take aspects from Duval’s Theory of Registers of Semiotic Representation as well as a study on paraboloid visualization as a benchmark. We configured the DGR of the elliptic paraboloid and analyzed how apprehensions and modifications develop in such register. We concluded stating that developing apprehensions in tasks that involve the notion of elliptic paraboloid can be done in the DGR, and we empathize that this type of research can be realized with other mathematical objects that may be represented in such register.
Respon kualitas dan ketahanan simpan cabai merah (Capsicum annuum L.) dengan penggunaan jenis bahan pengemas dan tingkat kematangan buah
Authors: Rochayat Yayat , Munika V. R.
Published: May 2018

Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi jenis bahan pengemas dan tingkat kematangan buah terhadap respon kualitas simpan cabai merah (Capsicum annuum L). Penelitian ini dilaksanakan pada bulan Maret sampai Juli 2012 di Cikole Lembang, dilanjut dengan pengamatan di Laboratorium Hortikul-tura, Fakultas Pertanian, Universitas Padja-djaran, Jatinangor, Kabupaten Sumedang, Jawa Barat. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) pola tunggal yang terdiri sepuluh kombinasi dan diulang tiga kali untuk setiap perlakuan. Tingkat kematangan buah yang digunakan yaitu kematangan 50–60% (K₁) dan kematangan 60–70 % (K₂). Jenis bahan pengemas yang digunakan adalah wadah Styrofoam tanpa tutup (P₁), wadah styrofoam di kemas dengan clear polyethylene (P₂), kotak duskarton (P₃), kotak Styrofoam berlubang5 pada bagian atas (P₄), kotak keranjang bambu (P₅). Hasil penelitian menunjukan bahwa terjadi kombinasi terbaik penggunaan jenis bahan pengemas dan tingkat kematangan buah terhadap kualitas simpan cabai merah. Perlakuan jenis bahan pengemas wadah Styrofoam dikemas dengan clear poly-ethylene (P₂) dan tingkat kematangan 50–60 % (K₁) memberikan hasil terbaik. Dapat memper-tahankan cabai layak pasar hingga 9 hari setelah penyimpanan, susut bobot pada hari ke-15 hanya 15,55 %, perubahan warna sempurna 100% merah, tanpa kerusakan mekanis dan biologis. Kata kunci : Bahan pengemas ∙ Cabai merah ∙ Pasca panen ∙ Penyimpanan buah ∙ Tingkatkematangan
Pengaruh konsentrasi giberelin dan pupuk organik cair asal rami terhadap pertumbuhan dan hasil tanaman rami (Boehmeria nivea (L.) Gaud) klon ramindo 1
Authors: Suherman Cucu , Nuraini Anne , Damayanthi R.
Published: May 2018

ABSTRAKRami adalah salah satu jenis tanaman penghasil serat yang memiliki potensi hasil lebih tinggi dibanding tanaman kapas. Salah satu faktor penentu tinggi rendahnya hasil adalah panjang dan jumlah serat, yang antara lain ditentukan oleh tinggi dan diameter batang tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi giberelin dan pupuk organik cair rami serta memperoleh salah satu kombinasi konsentrasi giberelin dan POC rami yang memberikan pengaruh terbaik pada pertumbuhan dan hasil serat tanaman rami klon Ramindo 1. Percobaan dilaksanakan dari bulan Januari 2016 sampai bulan Maret 2016 di kebun percobaan CiparanjeFaperta  Universitas Padjadjaran, Jatinangor, dengan ketinggian tempat mencapai  829 m di atas permukaan laut, dengan tanah ordo Inceptisol, dan tipe iklim berdasarkan klasifikasi Schmidt dan Ferguson (1951) termasuk tipe C. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) yang terdiri dari 8 perlakuan dan diulang sebanyak 4 kali, dengan perlakuan kombinasi GA0 ppm+ tanpa POC, GA50 ppm + tanpa POC, GA100 ppm + tanpa POC, GA150 ppm + tanpa POC, Larutan GA0 ppm + 40 ml/L POC, GA50 ppm + 40 ml/L POC, GA100 ppm + 40 ml/L POC, GA150 ppm + 40 ml/L POC. Hasil percobaan menunjukkan bahwa pemberian kombinasi dosis giberelin dan pupuk organik cair rami dapat mempengaruhi pertumbuhan dan hasil serat tanaman rami klon Ramindo 1. Perlakuan GA 150 ppm dan 40 ml/L pupuk organik cair (POC) dapat meningkatkan tinggi tanaman, diameter batang, bobot kering tanaman, bobot basah tanaman, dan bobot segar batang tanaman rami klon Ramindo 1.Kata kunci : Giberelin, pupuk organik cair, rami
Respons tanaman jagung (Zea mays L.) akibat pemberian pupuk fosfat dan waktu aplikasi pupuk hayati mikroba pelarut fosfat pada Ultisols Jatinangor
Authors: Wahyudin Agus , Fitriatin Betty Natalie , Wicaksono Fiky Yulianto , Ruminta Ruminta , Aristiyo Muhamad
Published: May 2018

ABSTRAKJagung merupakan salah satu komoditas tanaman pangan yang mempunyai peranan strategis dalam pembangunan pertanian dan perekonomian Indonesia karena memiliki potensi dalam kebutuhan pangan, pakan, bahan baku industri, dan kerajinan tangan. Penelitian ini bertujuan untuk mengetahui pengaruh jenis pupuk fosfat dan waktu pengaplikasian pupuk hayati mikroba pelarut fosfat (MPF) terhadap pertumbuhan dan hasil tanaman jagung pada Ultisols Jatinangor. Percobaan dilaksanakan di Kebun Percobaan Ciparanje Fakultas Pertanian Universitas Padjadjaran, Jatinangor, Kabupaten Sumedang, Jawa Barat dengan ketinggian tempat +_ 750 meter di atas permukaan laut dan ordo tanah Ultisol, curah hujan rata-rata termasuk tipe C3 menurut Oldeman, dan temperatur udara berkisar antara 22,00 – 23,66 C. Percobaan dilakukan dari bulan Mei sampai Agustus 2014. Metode percobaan yang digunakan adalah Rancangan Acak Kelompok yang terdiri dari 9 perlakuan dan diulang tiga kali. Perlakuan yang diujicoba adalah sebagai berikut: control (tanpa pupuk P dan pupuk hayati MPF); pupuk SP-36 dan batuan fosfat masing-masig dengan dosis anjuran 100% tanpa pengaplikasian pupuk hayati; pupuk SP-36 dan batuan fosfat masing-masing dengan dosis 50% dari anjuran dan dikombinasikan dengan pemberian pupuk hayati MPF sebanyak 1 kali pada saat sebelum tanam, 2 kali pada saat sebelum tanam dan 4 minggu setelah tanam (MST), dan 3 kali pada saat sebelum tanam, waktu pengaplikasian pupuk hayati mikroba pelarut fosfat memberikan pengaruh terhadap panjang tongkol. Perlakuan jenis pupuk SP-36 dengan dosis 50% dari anjran dan waktu pengalikasian pupuk hayati MPF sebanyak 1 kali pada waktu sebelum tanam terbukti memberikan pengaruh yang cenderung lebih baik dan efisien terhadap hasil dari tanaman jagung.Kata kunci : jgung, pupuk fosfat, dan mikroba pelarut fosfat.
Pengaruh pola tanam tumpangsari jagung dan kedelai terhadap pertumbuhan dan hasil jagung hibrida dan evaluasi tumpangsari di Arjasari Kabupaten Bandung
Authors: Yuwariah Yuyun , Ruswandi Dedi , Irwan Aep Wawan
Published: May 2018

Jagung dan kedelai merupakan tanaman pangan terpenting setelah padi di Indonesia. Konsumsi jagung dan kedelai akan terus mengalami peningkatan setiap tahun dikarenakan pertambahan jumlah penduduk. Salah satu upaya untuk meningkatkan produksi tanaman dapat dilakukan dengan cara tumpangsari. Sistem tumpangsari merupakan sistem pertanaman dengan menanam dua atau lebih jenis tanaman secara serentak pada lahan yang sama dalam waktu satu tahun. Penelitian bertujuan untuk mengetahui genotip jagung hibrida yang terbaik ditumpangsarikan dengan kedelai. Percobaan dilaksanakan dari bulan Maret 2016 sampai bulan Agustus 2016 di Arjasari, Kabupaten Bandung dengan ketinggian tempat mencapai  960 m di atas permukaan laut. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) yang terdiri dari 20 perlakuan dan diulang sebanyak 2 kali, dengan perlakuan 18 genotip dan 2 genotip cek, terdiri dari F1B X 4.8.8, F1E X 1.1.3, F1D X 3.1.4, F1F X G203, F1A X 4.8.8,, F1E X 3.1.4, F1H X G-673, F1I X G203, F1B X 1.1.3, F1E X 3.1.4, F1C X G203-1, F1G X 16.5.15, F1D X 16.5.15, F1H X 1.1.3, F1A X 16.5.15, F1I X G673, F1G X 673, F1C X 4.8.8, Maros 1 x 2 dan Maros 11 x 12 yang masing-masing ditumpangsarikan dengan tanaman kedelai. Hasil percobaan menunjukkan bahwa sistem tanam tumpangsari jagung dan kedelai dapat memberikan pengaruh yang lebih baik terhadap pertumbuhan dan hasil tanaman jagung genotip F1F x 3.1.4, Maros 1 x 2, dan Maros 11 x 12.  Perlakuan jagung hibrida genotip F1B x 1.1.3, F1B x 4.8.8, F1C x 4.8.8, F1I x G203-1, Maros 1 x 2 dan Maros 11 x 12  yang ditumpangsarikan dengan kedelai memberikan pengaruh terbaik terhadap bobot biji pipilan kering per petak sebesar 2,60 – 3,30  kg/m2 setara dengan 5,77 – 7,34 ton/ha.Kata kunci : Jagung Hibrida, Kedelai, Tumpangsari
Respon pertumbuhan dan hasil panen rebung periode pertama lima kultivar asparagus pada berbagai konsentrasi larutan garam
Authors: Sanchenia Zalora , Onggo Tino Mutiarawati , Sutari Wawan
Published: May 2018

Rebung asparagus (Asparagus officionalis L.) termasuk salah satu sayuran yang bernilai ekonomi tinggi di dunia juga di Indonesia. Kultivar asparagus yang ditanam di Indonesia umumnya merupakan kultivar introduksi dari daerah subtropis, sehingga pertumbuhan dan produksinya di Indonesia kurang optimal. Indonesia memiliki suhu dan kelembaban yang cukup tinggi sehingga dapat menyebabkan serangan berbagai penyakit pada tanaman asparagus. Aplikasi larutan garam pada media tanam mampu mengendalikan penyakit akar sehingga asparagus akan tumbuh dengan baik. Percobaan bertujuan mengetahui pengaruh konsentrasi larutan garam dan kultivar asparagus yang cocok untuk dataran medium Jatinangor supaya diperoleh pertumbuhan dan hasil rebung asparagus yang baik. Percobaan dilaksanakan di Laboratorium Kultur Terkendali Fakultas Pertanian Universitas Padjadjaran Jatinangor Kabupaten Sumedang pada ketinggian tempat sekitar 730 mdpl, sejak bulan Januari sampai Juli 2016. Penanaman dilakukan di bawah naungan plastik transparan. Rancangan percobaan menggunakan Rancangan Petak Terbagi (RPT) atau Split-Plot Design dengan dua ulangan. Petak utama adalah kultivar asparagus yang terdiri dari lima taraf yaitu kultivar Atlas F1, De Paoli F1, Jing Green F1, San Knight F1 dan Jaleo. Anak petak adalah konsentrasi larutan garam yang terdiri dari tiga taraf yaitu 1 g/L, 2 g/L dan 3 g/L. Hasil percobaan menunjukkan tidak terdapat hubungan yang saling mempengaruhi antara lima kultivar asparagus dan konsentrasi larutan garam terhadap pertumbuhan, hasil dan kualitas rebung. Pertumbuhan dan kualitas rebung asparagus dari lima kultivar yang di uji tidak berbeda nyata. Kultivar Atlas dan Jaleo mampu  menghasilkan persentase jumlah dan bobot rebung layak pasar lebih tinggi dibandingkan kultivar De Paoli. Perbedaan konsentrasi larutan garam tidak berpengaruh terhadap pertumbuhan, hasil panen dan kualitas rebung. Kata kunci: tinggi tanaman, jumlah batang, bobot brangkasan, bobot rebung, jumlah rebung
Haar-LikeWavelets over Tetrahedra
Authors: Boscardín Liliana Beatriz , Castro Liliana Raquel , Castro Silvia Mabel
Published: May 2018

In this paper we define a Haar-like wavelets basis that form a basis for L2(T,S,μ), μ being the Lebesgue measure and S the σ -algebra of all tetrahedra generated from a subdivision method of the T tetrahedron. As 3D objects are, in general, modeled by tetrahedral grids, this basis allows the multiresolution representation of scalar functions defined on polyhedral volumes, like colour, brightness, density and other properties of an 3D object.
Estimating Illumination Direction for Augmented Reality in Real-Time by using Low-Cost Sensors
Authors: Soulier Kevin E. , Selzer Matías Nicolás , Larrea Martín Leonardo
Published: May 2018

In recent years, Augmented Reality has become a very popular topic, both as a research and commercial field. This trend has originated with the use of mobile devices as computational core and display. The appearance of virtual objects and their interaction with the real world is a key element in the success of an Augmented Reality software. A common issue in this type of software is the visual inconsistency between the virtual and real objects due to wrong illumination. Although illumination is a common research topic in Computer Graphics, few studies have been made about real time estimation of illumination direction. In this work we present a low-cost approach to detect the direction of the environment illumination, allowing the illumination of virtual objects according to the real light of the ambient, improving the integration of the scene. Our solution is open-source, based on Arduino hardware and the presented system was developed on Android.
Effects of organic and conventional management on physical properties of soil aggregates
Authors: Król A. , Lipiec J. , Turski M. , Kuś J.
Published: May 2018

The aim of this study was to compare the effect of organic and conventional management systems on total porosity, water and ethanol sorptivity, repellency index, and tensile strength of soil aggregates. Two size fractions of soil aggregates (15-20 and 30-35 mm) were collected from the 0-10 and 10-20 cm depths. Data on water and ethanol sorptivities of the initially air-dry soil aggregate fractions were obtained from the steady state flow measurements using an infiltration device. Water repellency was identified by the ethanol/water sorptivity method. The total porosity was higher in aggregates from the conventionally than organically managed soil irrespective of soil layer or aggregate size. Infiltration and sorptivity of ethanol (60 mm3) were faster under the conventional than organic management irrespective of aggregate size and depth. Infiltration and sorptivity of water in 30-35mmaggregates were greater under organic than conventional management. The repellency index was mostly higher for the conventional management of soil and for agregates 30-35 than 15-20 mm in each management system. Aggregate crushing strength was in most cases greater under the organic than conventional management and could increase resistance to compaction and carbon sequestration under the former.
Improving growth and productivity of tomato by some biostimulants and micronutrients with or without mulching
Authors: Ibrahim, K.H. Ghoniem M.N. Helaly, A.A. Arafa, Heba M.
Published: May 2018

Two field experiments were doled out during 2014 and 2015 growing seasons to assess tomato growth and yield as affected by some biostimulants and micronutrients with or without mulching type. Certain physiological characters were also examined, plant height, the number of branches per plant chlorophyll a, nitrogen %, red fruit weight and total yield per plant as well as fruit firmness and ascorbic acid concentration in fruit was increased in tomatoes under black plastic mulch compared with bar soil. Application of either biostimulants or micronutrient used to increase all growth and yield characters as well as photosynthetic pigments, ions percentage, and fruit quality. Additive effects were shown under mulching, seaweed extract proved to be the most effective in this respect. It could be recommended that spraying tomato crop at 35 and 50 days from transplanting with 500 mg/l seaweed extract under clear or black plastic mulch in order for inducing the highest yield and improve fruit quality.
Illiteracy among Caregivers: Implications for Children's Educational and Social Development
Authors: Makunga Barrington , Schenck Catherina Johanna , Roman Nicolette V , Spolander Gary
Published: May 2018

The ability of primary caregivers to provide a healthy, nurturing and stimulating environment for their children is essential for childrenâ€™s educational advancement and emotional development. However, caregivers who live in the rural areas in South Africa face many challenges, ranging from acute poverty and limited education and skills to feelings of social inadequacy and marginalisation. These factors directly and indirectly affect their ability to care for children and thus these childrenâ€™s educational progress and future economic and social prospects. This article describes the experiences of illiterate caregivers in the Eastern Cape, South Africa, in attempting (or otherwise) to assist the children in their care with their schoolwork. An exploratory study was conducted in the village of Ku Jonga in the Eastern Capeâ€™s rural Coffee Bay, which used focus groups comprising caregivers and teachers. Among the findings was that many childrenâ€™s lack of educational advancement in the school system has complex origins, but that the illiteracy of their primary caregivers (which results in their inability to help with schoolwork or to provide the motivation or environment for learning) is a leading cause. A key conclusion was that caregivers, teachers and external stakeholders (for example the government and civil organisations) need to work together to arrive at a common understanding of the specific problems and priorities of rural communities, particularly with regard to education, and to introduce practical initiatives to help these communities become more motivated, productive and self-sustaining.
KESENIAN DONGKREK (STUDI NILAI BUDAYA DAN POTENSINYA SEBAGAI SUMBER PENDIDIKAN KARAKTER)
Authors: Hanif Muhammad
Published: May 2018

Penelitian ini  untuk menganalisis dan mendeskripsikan nilai budaya kesenian Dongkrek Madiun dan potensinya yang dapat dijadikan sumber pendidikan karakter.Penelitian ini menggunakan pendekatan kualitatif etnografis dengan menggunakan sumber data primer dan skunder. Informan ditentukan dengan purposive sampling. Pengumpulan datanya menggunakan wawancara, observasi, pencatatan dokumentasi. Sedangkan analisis datanya dengan Teknik Coding Model Strauss dan Corbin. Hasil penelitian menggambarkan bahwa kesenian dongkrek memiliki nilai-nilai; kerohanian, spiritual, moral, kepahlawanan, kepemimpinan, keadilan, kesejahteraan, dan estetika. Nilai-nilai secara fungsional dan eksperimental berpotensi untuk dijadikan sebagai sumber pendidikan karakter terutama dalam penegakan nilai-nilai kemasyarakatan dan menumbuhkembangkan kepemimpinan, kepahlawanan, keikhlasan, dan kesetiaan.
Kesantunan Berbahasa Siswa dalam Berdiskusi
Authors: Cahyaningrum Fitria , Andayani Andayani , Setiawan Budhi
Published: May 2018

Kegiatan diskusi dapat menjadi upaya dalam meningkatkan keterampilan berbicara siswa melalui pengungkapan gagasan, ide, dan pendapat tentang suatu masalah. Namun, kadang masih muncul penggunaan bahasa yang kurang santun saat siswa menyampaikan pendapatnya. Diperlukan cara berdiskusi yang santun dengan diksi yang tepat saat berinteraksi dengan orang lain. Penelitian ini bertujuan untuk mendeskripsikan bentuk kesantunan berbahasa siswa dalam diskusi kelas dan ciri penanda lingualnya. Metode yang digunakan ialah metode penelitian deskriptif kualitatif dengan pendekatan sosiopragmatik. Data berupa tuturan siswa dalam diskusi kelas. Teknik pengumpulan data melalui teknik perekaman dengan metode simak bebas libat cakap (SBLC). Teknik analisis data menggunakan model interaktif berupa pengumpulan data, reduksi data, analisis data, dan penarikan simpulan. Hasil penelitian menunjukkan terdapat pematuhan maksim kebijaksanaan, maksim kedermawanan, maksim kesederhanaan, maksim penghargaan, maksim kesepakatan, dan maksim kesimpatian. Adapun ciri penanda kesantunan linguistik berupa kata “silakan”, “tolong”, “maaf”, “terima kasih”, dan “mari”.