bluuebunny/crossref_metadata_2025 huggingface dataset:
ESTUDIO DE PERFILES Y MOTIVADORES DE LOS DONANTES DE UNA ONG
Authors: Ossa-Arboleda Natalia , Ceballos Lina
Published: July 2019

Non-governmental organizations (NGO) need funding to achieve their purposes. For this reason, it is necessary to understand the behavior of donors to achieve a more effective acquisition and retention of donations. Based on the theory of values, the main objective of this research is to identify the profiles of individuals who make donations of time and money to an NGO via the exploration of motivators and inhibitors to donate. A qualitative approach was used with a total of 22 participants in the city of Medellin. Group sessions and in-depth interviews were conducted with 19 donors of time and money between the ages of 18 and 30, as well as three in-depth interviews with experts. The results propose a value segmentation of three groups of donors: Altruists, Hedonists and Makers; mainly repre- sented by the values of “universalism,” “pleasure,” and “self-direction,” respectively. Although for all segments it is important to help those who need it most, the values expressed in the motivations that lead to donations vary from one segment to another. Knowing the different types of donors will allow NGO to generate actions to attract them and extend literature related to charitable behavior.
Didática freireana no Ensino Superior
Authors: Gerez Alessandra Galve , Amaral Débora Monteiro do , Silva Itamar Mendes da , Giovedi Valter Martins
Published: July 2019

Este artigo objetiva relatar uma experiência em sala de aula fundamentada na perspectiva freireana de educação, realizada por um dos autores junto à disciplina de Didática do curso de Licenciatura em História de uma universidade pública. Para tanto, foi realizada uma pesquisa descritiva e qualitativa, que consistiu em descrever as etapas para materialização de uma didática no Ensino Superior, com base na metodologia de investigação temática freireana. Concluímos sobre a importância de recuperar o conceito de Didática em Paulo Freire e as possibilidades reais para sua concretização na prática docente. Porém, sua adoção implica que o(a) docente universitário(a) rompa com os modos tradicionais de seleção de conteúdos e esteja radicalmente comprometido(a) com o diálogo crítico e com os ideais democráticos emancipatórios.
Projeto Político Pedagógico e a formação de professores/as de Matemática
Authors: Silva Joais Martins , Bazante Tânia Maria Goretti Donato
Published: July 2019

O artigo discute a identidade docente idealizada na formação de professores/as de Matemática. Para tanto, temos como objetivo geral: compreender o pensamento ideológico contido no Projeto Político Pedagógico (PPP) do curso de Matemática Licenciatura da Universidade Federal de Pernambuco, no que tange à identidade docente. Nas seções teóricas, se discute o conceito de identidade docente e os sentidos e significados do PPP. Na metodologia, evidenciamos o tipo e abordagem do estudo e a técnica de análise empregada, a saber: análise do conteúdo. A discussão sobre a identidade docente dos/as estudantes é realizada à luz do PPP do curso de Matemática Licenciatura (UFPE, 2017). Portanto, a partir dos conteúdos dele extraídos. Nas considerações, fechamos o artigo tecendo alguns entendimentos sobre o tema.
ACERCA DE LA PSICOLOGÍA DE LA RELIGIÓN Y LA ESPIRITUALIDAD
Authors: Salgado Lévano Cecilia
Published: July 2019

El presente trabajo tiene como objetivo ofrecer una revisión sistemática de lo que comprende la Psicología de la religión y espiritualidad, para ello en primer lugar se revisan las definiciones, condiciones y dimensiones de la religión, en segundo lugar, las definiciones y dimensiones de la religiosidad y en tercer lugar, las definiciones, modelos en salud, dimensiones y características de la espiritualidad. Se concluye que a pesar de los avances en este campo, aún es necesario destinar esfuerzos personales y colectivos para impulsar investigaciones, dado el innegable rol que tiene en la vida del ser humano variables como el afrontamiento religioso, la convicción espiritual, el bienestar espiritual, las experiencias y formas de participación religiosa, creencias y prácticas espirituales y religiosas, la conversión y la fe en Dios.
A função quadrática: variação, transparência e duas tipologias de exemplos
Authors: Figueiredo Carlos Alberto , Contreras Luis Carlos
Published: July 2019

O uso de exemplos é um recurso do qual todos os professores de matemática se valem para ensinar os conteúdos matemáticos. Ainda que as estratégias metodológicas possam ser muito diferentes, a exemplificação que elas contêm pode ter traços comuns e, neste artigo, apresentamos dois desses traços: a variação e a transparência. Estas duas características que os exemplos apresentam podem ser combinadas de modo que as generalizações e abstracções sejam mais facilmente alcançadas pelos alunos; particularmente, mostramos essa simbiose no caso do estudo das funções quadráticas.Todavia, exemplificações diferentes produzem também tipos de exemplos diferentes. No estudo que aqui descrevemos encontrámos diferenças importantes que permitiram identificar duas tipologias de exemplos muito diferentes, embora com o mesmo objectivo e igualmente eficazes.
Construcción de conocimiento sobre características de aprendizaje de las Matemáticas a través del análisis de vídeos
Authors: Climent Rodríguez Nuria , Montes Navarro Miguel Ángel , Contreras González Luis Carlos , Carrillo Yáñez José , Liñán M. Mar , Muñoz-Catalán M. Cinta , Barrera Víctor J. , León Moriales Fernando
Published: July 2019

En este artículo abordamos la construcción de conocimiento sobre las características de aprendizaje matemático. Nos centramos en cómotres estudiantes paramaestro analizan un video en el que una maestra de primaria trabaja contenidos de geometría con sus alumnos. Mostraremos cómo la discusión del video da a estos tres estudiantes para maestro la oportunidad de mirar profesionalmente el aprendizaje de los alumnos que en él aparecen, movilizando lo aprendido en cursos previos y creando la posibilidad de generar nuevo conocimiento a través de sus intentos por comprender a los alumnos.
Análisis Didáctico del proceso matemático de Modelización en alumnos de Secundaria
Authors: Socas Martín M. , Ruano Raquel Mª , Hernández Domínguez Josefa
Published: July 2019

En este trabajo se analiza didácticamenteel proceso matemático de Modelización en relación con las dificultades y errores de un grupo de alumnos de Educación Secundaria. Se consideran dos situaciones problemáticas relativas a este proceso, que se estudian desde las perspectivas epistemológica, semiótica y fenomenológica que propone el Enfoque Lógico Semiótico (ELOS) (Socas, 2007). Se concluye relacionando estas dificultades y errores de los alumnos con la organización de la enseñanza de la Modelización en la Secundaria, mostrando también el papel que juegan en dicho proceso otros como la Sustitución Formal y la Generalización, así como las estructuras y las operaciones matemáticas implicadas en el mismo.
The impact of visualization on flexible Bayesian reasoning
Authors: Böcherer-Linder Katharina , Eichler Andreas , Vogel Markus
Published: July 2019

There is wide consensus that visualizations of statistical information can support Bayesian reasoning. This article focusses on the conceptual understanding of Bayesian reasoning situations and investigates whether the tree diagram or the unit square is more appropriate to support the understanding of the influence of the base rate, which is introduced as being a part of flexible Bayesianreasoning. As a statistical graph, the unit square reflects the influence of the base rate not only in a numerical but also in a geometrical way. Accordingly, in two experiments with undergraduate students (N = 148 and N = 143) the unit square outperformed the tree diagram referring to the understanding of the influence of the base rate. Our results could inform the discussion about how to visualize Bayesian situations and has practical consequences for the teaching and learning of statistics
La probabilidad condicional y la probabilidad conjunta en la resolución de problemas de probabilidad
Authors: Huerta Palau Manuel Pedro , Arnau Bresó Joaquín
Published: July 2019

En este artículo se estudian las relaciones entre las probabilidades condicionales y conjuntas en el proceso de resolución de problemas escolares, desde una perspectiva educativa antes que cognitiva. Primero mostramos cómo los problemas básicos de probabilidad condicional presentan muchas dificultades a una amplia muestra de resolutores, desde la educación secundaria a maestros y profesores de matemáticas en formación. Apuntamos hacia las complejas relaciones entre las distintas probabilidades que participan en el proceso de resolución como una de las principales causas de dichas dificultades y cómo éstas dependen de las variables de la tarea asociadas a los problemas, tales como su estructura matemática, el contexto en el que los problemas se formulan y el vocabulario usado para expresar dichas probabilidades en cada contexto. Mostramos también cómo algunos estudiantes, cuando resuelven problemas de probabilidad condicional, no tratan con sentido las probabilidades condicionales sino que éste depende de los recursos o sistemas de representación que usan para la resolución del problema.
Conceptos y propiedades de probabilidaden libros de textoespañoles de educación primaria
Authors: Gómez Torres Emilse , Ortiz Juan Jesus , Gea Maria Magdalena
Published: July 2019

En este artículo se analiza la presentación de conceptos y propiedades asociados a cuatro significados de la probabilidad en dos series de libros de texto españoles de educación primaria. Utilizamos una metodología cualitativa, basada en identificar y describir cómo se introduce cada concepto y propiedad en los libros de texto seleccionados. Los resultados muestran la introducción de conceptos básicos ligados a los cuatro significados, así como de propiedades fundamentales de cada uno de estos conceptos. Ambas editoriales desarrollan el significado intuitivo en todos los ciclos y el significado clásico en los dos últimos; la mención al significado subjetivo es tangencial en los dos últimos ciclos. Una diferencia notoria entre las dos series de textos es el tratamiento del significado frecuencial, una serie solo presenta conceptos y propiedades desde el punto de vista estadístico; mientras que la otra, además de éstos, desarrolla el punto de vista probabilístico. Diferencias en la forma y profundidad de tratarestos contenidos en los libros analizados resaltan la importancia del profesor al seleccionarlos y usarlos en la enseñanza.
Representación matemática en el Colegio de Doctores y Licenciados de Madrid (1899 - 1949)
Authors: Peralta Javier
Published: July 2019

Los Colegios de Doctores y Licenciados en Filosofía y Letras y en Ciencias son, esencialmente, los Colegios profesionales de profesores. Velan por el ejercicio y defensa de la profesión docente, así como por la función social y la calidad de la enseñanza. En este artículo se demuestra que la representación matemática en la Junta directiva del Colegio de Madrid durante los primeros cincuenta años de su existencia ha sido muy importante. De los ilustres matemáticos que ocuparon  tales cargos se realiza además un resumen, tanto de su obra matemática como de sus aportaciones a la vida colegial.
Análisis del discurso Matemático Escolaren los libros de texto, una mirada desdela Teoría Socioepistemológica
Authors: Cantoral Ricardo , Montiel Gisela , Reyes-Gasperini Daniela
Published: July 2019

Este artículo presenta un ejemplo del análisis de libros de texto (manuales escolares) de la enseñanza secundaria mexicana para el tema de la Trigonometría. Dicho estudio se basa en la Teoría Socioepistemológica de la Matemática Educativa para la cual las prácticas sociales están en la base misma de los conocimientos más especializados. Se discute el papel de la problematización del saber, como historización y dialectización, mediante el empleo de la noción de “anidación de prácticas” para la construcción de lo trigonométrico (relativo al uso). Através de una serie de ejemplos concretos útiles teorizamossobrelas razones de la ausencia de significados que produce una enseñanza centradaen el objeto matemático.De ahí derivamos, posteriormente, propuestas para la intervención educativa en un aula extendida basada en la epistemología de prácticas.
AKTIVITAS ENZIM BROMELIN DARI EKSTRAK KULIT NENAS (Anenas comosus)
Authors: Kumaunang Maureen , Kamu Vanda
Published: July 2019

AKTIVITAS ENZIM BROMELIN DARI EKSTRAK KULIT NENAS (Anenas comosus) Maureen Kumaunang1), Vanda Kamu1) 1) Program Studi Kimia FMIPA Universitas Sam Ratulangi, Manado;e-mail: maureen273@yahoo.com   ABSTRAK Limbah dalam jumlah yang cukup banyak  selalu dihasilkan dalam industri pengolahan buah nenas. Umumnya limbah nenas yang berupa batang, daun, kulit, dan bonggol belum dimanfaatkan secara optimal.  Padahal telah diketahui bahwa daging, batang, dan bonggol nenas mengandung enzim bromelin.  Bromelin tergolong kelompok enzim protease sulfhidril yang mampu menguraikan struktur molekul protein menjadi asam-asam amino.  Penelitian ini bertujuan untuk mengisolasi enzim bromelin serta menentukan kadar protein dan aktivitas enzim bromelin pada kulit nenas dengan substrat gelatin. Tahap penelitian meliputi penentuan kadar enzim bromelin dan penentuan aktivitas enzim bromelin pada kondisi optimumnya.  Hasil isolasi enzim bromelin menunjukkan kadar protein tertinggi pada pengendapan dengan amonium sulfat 60%, yaitu sebesar 0,039% (b/b). Temperatur optimum enzim bromelin adalah 65oC dengan aktivitas sebesar 0,071 unit/menit.  pH optimum yang diperoleh adalah 6,5 dengan aktivitas sebesar 0,0101 unit/menit. Kata kunci: bromelin, gelatin, kulit nenas, pengendapan amonium sulfat,   THE ACTIVITY OF BROMELAIN ENZYME ISOLATED FROM PINEAPPLE (Anenas comosus) FRUIT SKIN ABSTRACT The pineapple fruit processing industry always produce waste in the form of stems, leaves, fruit skin and tubers.  The waste hasnot been  optimally used.  The fruit, stem, and tuber of pineapple, however, contains bromelain enzyme.  Bromelain is classified as protease enzyme sulfhydryl groups that are able to break down the molecular structure of proteins into amino acids. The aim of this study was to isolate bromelain enzyme and determine the protein concentration and ezyme activity from pineapple bark against the gelatine substrate. This research consisted of determining the bromelain concentration and enzyme activity in the optimum condition.  The result of bromelain isolation showed that the highest protein concentration was resulted from precipitation with 60% ammonium sulfate. i.e. 0,039% (w/w).  The optimum temperature was 65oC with the activity of 0,071 units/min and the optimum pH obtained was 6,5 with the activity of 0,0101 units/min. Keywords: bromelain, gelatin,  pineapple fruit skin, ammonium sulphate precipitation
ANALISA ASAM LEMAK DALAM MINYAK KELAPA MURNI (VCO) DENGAN DUA PERALATAN KROMATOGRAFI GAS
Authors: Pontoh Julius , Buyung Nancy T.N
Published: July 2019

ANALISA ASAM LEMAK DALAM MINYAK KELAPA MURNI (VCO) DENGAN DUA PERALATAN KROMATOGRAFI GAS Julius Pontoh1) dan Nancy T.N. Buyung2); e-mail:pontohjulius@yahoo.com 1)Program Studi Kimia FMIPA Universitas Sam Ratulangi, Manado 95115 2)Alumni Program Studi Kimia FMIPA Universitas Sam Ratulangi, Manado 95119 ABSTRAK Komposisi asam asam lemak dalam minyak kelapa sangat penting untuk menilai kualitas dari minyak tersebut.  Untuk minyak kelapa, komposisi dari asam lemak rantai menengah seperti kaprilik, kaprat dan laurat menjadi asam asam lemak penting.  Di Indonesia ada dua laboratorium yang banyak digunakan untuk menganalisa asam asam lemak dalam minyak kelapa murni.  Tujuan penelitian ini adalah untuk membandingkan kedua laboratorium tersebut dalam menganalisa asam asam lemak.  Kromatogram dari Laboratorium pertama menunjukan garis dasar yang ebih baik, tetapi tidak dapat mendeteksi asam stearat.  Waktu retensi asam asam lemak dalam kedua komatogram sangat berbeda.  Demikian juga dengan luas puncak dari asam asam lemak berbeda dalam kedua kromatogram.  Namun demikian, persentasi luas pencak dari masing masing asam lemak dalam kedua kromatogram hampir sama. Kata kunci: kromatogarafi gas, waktu retensi   FATTY ACID ANALYSIS IN VIRGIN COCONUT OIL (VCO) WITH TWO TYPES GAS CHROMATOGRAPHY ABSTRACT Fatty acid composition in coconut oil is very important to evaluate the quality of the oil. For coconut oil, the composition of medium length of fatty acids such as caprylic, capric and lauric acids are the interest of the oil. To date, this fatty acid composition is the best to be analyzed by gas chromatography.  In Indonesia, there are two laboratories used to analyze the fatty acids.  The purpose of this study is to compare the two laboratories in the analysis the compounds.  Samples of commercial coconut oils were treated with acid and base to converted into Fatty acid methyl ester.  The derivatives were extracted with hexane and ready to be send to the laboratories.  The results show the chromatogram of the two laboratories is totally difference. The chromatograph from Laboratory 1 showed very good base line but there was no stearic fatty acid peak shown  The retention time for the same fatty acids is different. Peak areas among the same fatty acids are totally different between the two laboratories, but the percentage for each fatty acid is almost the same. Keywords: gas chromatography, retention time
Graph Model for Minimal Distance and Optimal Circulation in Urban Design
Authors: Pioh Pingkan S
Published: July 2019

GRAPH MODEL FOR MINIMAL DISTANCE AND OPTIMAL CIRCULATION IN URBAN DESIGNABSTRACT Among the important aspects in urban design are minimal distance and optimal circulation of the traffic network which include good access to the places of interests. The main road network is modeled in graph where the important places are represented by vertices and the main roads between them are represented in edges. A graph is called 3-connected if for every pair of vertices, there are three disjoint paths connecting them. Given the vertices and their locations, this paper focuses to make a 3-connected graph with minimal distance connecting them. This model is simulated in a computer program and applied in a current road network of Manado City, North Sulawesi Indonesia to see whether of not the road network in Manado is already optimal or not. Keywords: graph, n-connected, minimal distance, urban design.  MODEL GRAF UNTUK JARAK MINIMALDAN SIRKULASI OPTIMAL PADA PERANCANGAN KOTA ABSTRAK Diantara aspek penting dalam perancangan kota adalah jarak yang minimal dan sirkulasi yang baik dari lalu lintas termasuk aksesibilitas dari tempat-tempat penting. Perancangan ini dimodelkan dalam bentuk graf yang simpul-simpul mewakili tempat-tempat penting sedangkan sisi-sisi menyajikan jalan-jalan yang menghubungkan tempat-tempat tersebut. Sebuah graf dikatakan terkoneksi-3 jika untuk setiap pasangan simpul, terdapat 3 jalur saling lepas yang menghubungkan kedua simpul itu. Fokus dari paper ini adalah, jika diberikan simpul-simpul bersama lokasinya, membuat graph yang terkoneksi-3 dengan jarak minimal. Model ini diimplementasikan dalam bentuk program komputer dan diterapkan pada jaringan jalan yang ada di Manado, Sulawesi Utara, Indonesia, sekarang untuk menentukan apakah jaringan jalan di Manado sudah optimal atau belum. Kata kunci: Graf, terkoneksi-3, jarak minimal, perancangan kota
PENGEMBANGAN MODEL REGRESI POLINOMIAL BERGANDA PADA KASUS DATA PEMASARAN
Authors: Malensang Julyanti S , Komalig Hanny , Hatidja Djoni
Published: July 2019

PENGEMBANGAN MODEL REGRESI POLINOMIAL BERGANDA PADA KASUS DATA PEMASARANABSTRAK Regresi polinomial merupakan regresi linier berganda yang dibentuk dengan menjumlahkan pengaruh variabel prediktor (X) yang dipangkatkan secara meningkat sampai orde ke-k. Model regresi polinomial, struktur analisisnya sama dengan model regresi linier berganda. Artinya, setiap pangkat atau orde variabel prediktor (X) pada model polinomial, merupakan transformasi variabel awal dan dipandang sebagai sebuah variabel prediktor (X) baru dalam linier berganda. Model terbaik dari kelima model yang telah diuji adalah persamaan regresi model ke-5. Hal ini dapat dilihat dari nilai koefisien determinasi sebesar 99,1% dan nilai R-Sq(adj) = 98,8%, karena nilai R2 mendekati nilai yang telah diatur dan berdasarkan pengujian yang dilakukan ternyata seluruh koefisien-koefisien dari setiap variabel bebas signifikan serta ada kelengkungan yang bersifat kubik (pangkat 3) terhadap data X3 terhadap Y. Kata kunci: Pemasaran, Regresi polynomial. DEVELOPMENT OF MULTIPOLYNOMIAL REGRESSION MODEL ON MARKETING DATA CASE ABSTRACT Polynomial regression is linear regression multiple were created by summing the effect of each predictor variable (X) is raised to increase to the order of the k.  Polynomial regression model, has the same structure with linear regression models. That is, any rank or order predictor variable (X) in polynomial models, an initial variable transformation and is seen as a predictor variable (X) has the linear regression. The best model of the six models tested were equation regression model to-5.  It can be seen from the value of the coefficient of determination of 99.1% and a value of R-Sq (adj) = 98.8%, due to the value of R2 close to the value that has been set up and based on tests performed turns all the coefficients of each independent variable significantly and there are cubic curvature (rank 3) to the data X3 to Y. Keywords : Marketing, Polynomial regression.
POPULASI KUPU-KUPU (LEPIDOPTERA ) DI PULAU MANTEHAGE, SULAWESI UTARA
Authors: Lamatoa Debry C , Koneri Roni , Siahaan Ratna , Maabuat Pience V
Published: July 2019

POPULASI KUPU-KUPU (LEPIDOPTERA ) DI PULAU MANTEHAGE, SULAWESI UTARA ABSTRAK Kupu-kupu berperan penting dalam ekosistem dan dapat membantu proses penyerbukan pada tumbuhan. Penelitian ini bertujuan untuk mengkaji populasi  kupu-kupu di Pulau Mantehage, Sulawesi Utara. Pengambilan sampel kupu-kupu dilakukan dari Maret sampai Mei 2013 di Pulau Mantehage, Sulawesi Utara.    Kupu-kupu dikoleksi dengan menggunakan metode sweeping yang diterapkan secara acak sepanjang 500m. Hasil penelitian  menunjukkan bahwa kupu-kupu di Pulau Mantehage ada 19 spesies yang termasuk ke dalam 4 famili yaitu Nymphalidae, Papilionidae, Pieridae dan Riodinidae. Spesies kupu-kupu yang paling banyak ditemukan yaitu Catopsilia scylla asema. Famili yang paling banyak ditemukan yaitu Famili Nymphalidae dengan jumlah spesies sebanyak 11 spesies. Kupu-kupu yang paling sedikit  yaitu Famili Riodinidae yang memiliki jumlah satu spesies. Kata kunci : Populasi kupu-kupu, Pulau Mantehage, Sulawesi Utara. POPULATION OF BUTTERFLY (LEPIDOPTERA) IN MANTEHAGE ISLAND, NORTH SULAWESI ABSTRACT Butterfly has ecological functions for pollination and as biodicator of ecosystem change. This study was conducted for studying butterfly population in Mantehage Island, North Sulawesi. Butterfly sampling conducted in March until May 2013 in Mantehage island, North Sulawesi. Butterfly were collected by using random sweeping along 500 m. The result showed there were 19 species in 4 families i.e. Nymphalidae, Papilionidae, Pieridae dan Riodinidae. The most commonly butterfly found was Catopsilia scylla asema. The most common family was Nymphalidae with numbers of species were 11 species. The least family was Riodinidae with only 1 species. Keywords: Butterfly population, Mantehage Island, North Sulawesi.
UJI FITOKIMIA DAN PENENTUAN Inhibition Concentration 50% PADA BEBERAPA TUMBUHAN OBAT DI PULAU TIDORE
Authors: Abdullah Wiwin , Runtuwene Max Revolta J. , Kamu Vanda Selvana
Published: July 2019

ABSTRAK Penelitian ini dilakukan untuk mengetahui senyawa aktif yang terkandung melalui pengujian fitokimia dan aktivitas antioksidan pada tumbuhan obat di pulau Tidore. Uji aktivitas antioksidan menggunakan metode DPPH dilanjutkan dengan perhitungan Inhibition Concentration 50% (IC50). Hasil yang diperoleh adalah biji buah mojoi terkandung senyawa alkaloid dan saponin, buah coro terkandung alkaloid, flavonoid, dan saponin, pada daun ofo terkandung  alkaloid, tanin, flavonoid, steroid, dan saponin dan pada rimpang kuso mafola terkandung alkaloid, tanin, flavonoid, steroid, dan saponin. Nilai IC50 sebagai berikut biji rimpang kuso mafola 37,30 ppm, buah coro 250,17 ppm, daun ofo 976,10 ppm  dan buah mojoi 1001, 07 ppm. Kata kunci :Tumbuhan  obat, DPPH, antioksidan dan uji fitokimia. PHYTOCHEMICALS TEST AND DETERMINATION Inhibition Concentration 50% ON SOME MEDICINAL PLANTS IN THE TIDORE ISLAND ABSTRACT This study was conducted to determine the active compounds contained in an assessment of phytochemical and antioxidant activity in the medicinal plants of Tidore island. The test antioxidant activity was used DPPH method. In the test results to the phytochemical , that mojoi fruit seeds contained alkaloids and saponins, fruit coro (alkaloids, flavonoids, and saponins), ofo leaves (alkaloids, tannins, flavonoids, steroids, and saponins) and ethanol extract of rhizome kusomafola (alkaloids, tannins, flavonoids, steroids, and saponins. In  calculation of IC50 values ​​for rhizome kusomafola 37.30 ppm, 250.17 ppm coro fruit, 976.10 ppm ofo leaf extract, and fruit seed extract mojoi 1001.07 ppm. Keywords: Medicinal plants, DPPH, antioxidant and phytochemical test.
PEMETAAN AKUIFER AIR TANAH DI JALAN RINGROAD KELURAHAN MALENDENG DENGAN MENGGUNAKAN METODE GEOLISTRIK TAHANAN JENIS
Authors: Sedana Dewi , As’ari As’ari , Tanauma Adey
Published: July 2019

PEMETAAN AKUIFER AIR TANAH DI JALAN RINGROAD KELURAHAN MALENDENG DENGAN MENGGUNAKAN METODE GEOLISTRIK TAHANAN JENIS ABSTRAK Geolistrik merupakan salah satu metode geofisika yang dimanfaatkan dalam eksplorasi alam bawah permukaan. Prinsip kerja metode geolistrik adalah mempelajari aliran listrik di dalam bumi dan cara mendeteksinya di permukaan bumi. Penelitian ini bertujuan untuk memetakan akuifer Airtanah di Jalan Ringroad Kelurahan Malendeng berdasarkan resistivitas batuan bawah permukaan. Penelitian terdiri dari 4 titik sounding pada 1 lintasan dengan jarak setiap titik 40 meter. Hasil eksplorasi diolah dengan menggunakan software IP2WIN untuk melihat data perlapisan di bawah permukaan tanah berdasarkan nilai resistivitasnya (2D) dan pesebaran titik – titik terdapatnya akuifer Airtanah. Hasil penelitian menunjukkan bahwa akuifer Airtanah berada pada daerah yang dekat sungai yaitu pada titik 4 yang memiliki nilai resistivitas rendah kurang dari 123 Ωm. Kata kunci : Geolistrik tahanan jenis, akuifer Airtanah, software IP2WIN.   THE MAPPING OF GROUNDWATER AQUIFERS AT THE RINGROAD MALENDENG VILLAGE BY USING GEOELECTRIC RESISTIVITY METHOD ABSTRACT Geoelectric is a geophysical method that is utilized in natural subsurface exploration. The working principle of geoelectric method is to study the flow of electricity in the earth and how to detect them in the earth's surface. This study aims to map the aquifer Groundwater at the Ringroad Malendeng village based resistivity of the subsurface rocks. The study consisted of four points on 1-sounding track with the distance of each point 40 meters. Exploration results were processed using software IP2WIN to view data subsurface layering based on the value of the resistivity (2D) and  point - the point of the presence of Groundwater aquifers. The results showed that the aquifer Groundwater is the area near the river is at point 4 which has a low resistivity value of less than 123 Ωm. Keywords: Geolistrik resistivity, Groundwater aquifers, IP2WIN software.
METODE GEOLISTRIK RESTIVITAS KONFIGURASI WENNER-SCHLUMBERGER DAN KONFIGURASI DIPOLE-DIPOLE UNTUK IDENTIFIKASI PATAHAN MANADO DI KECAMATAN PAALDUA KOTA MANADO
Authors: Utiya Jefriyanto , As’ari As’ari , Tongkukut Seni HJ
Published: July 2019

METODE GEOLISTRIK RESTIVITAS KONFIGURASI WENNER-SCHLUMBERGER DAN KONFIGURASI DIPOLE-DIPOLE UNTUK IDENTIFIKASI PATAHAN MANADO DI KECAMATAN PAALDUA  KOTA MANADO ABSTRAK Telah dilakukan penelitian untuk  mendeteksi keberadaan Patahan Manado di Jalan Ringroad, Kelurahan Malendeng, Kecamatan Paaldua, Kota Manado, menggunakan metode geolistrik tahanan jenis konfigurasi Wenner-Schlumberger dan konfigurasi Dipole-dipole. Akuisisi data menggunakan multichannel and multielectrode resistivity and IP meter 46 simultaneous channel merek MAE X612-EM. Pengukuran dilakukan pada 4 lintasan dengan panjang masing-masing lintasan 480 meter. Pengolahan data dilakukan dengan menggunakan perangkat lunak RES2DINV dengan hasil berupa citra resistivitas bawah permukaan 2D. Diperoleh hasil bahwa bidang-bidang lemah pada lintasan 2  dan lintasan 4 dengan nilai resitivitas batuan berkisar (2,72-86) Ωm, memotong perlapisan antara batuan yang memiliki resistivitas yang lebih tinggi. Bidang lemah tersebut diperkirakan sebagai rekahan yang ditemukan pada kedalaman (2,50-40) meter dari permukaan tanah. Kata Kunci : Wenner-Schlumberger, Dipole-dipole, RES2DINV, Patahan Manado. GEOELECTRIC RESISTIVITY METHOD WITH WENNER-SCHLUMBERGER AND DIPOLE-DIPOLE CONFIGURATIONS FOR IDENTIFICATION MANADO FAULT IN MANADO AT PAALDUA DISTRICTS ABSTRACT The research about detecting the presence of Manado Fault in Manado, Malendeng Village, Paaldua District, by using resistivity geoelectric method with Wenner-Schlumberger  and Dipole-dipole configurations, has been done. Multichannel and multielectrode resistivity and IP meters 46 simultaneous channels MAE brand X612-EM is device for acquisition of data. The Measurements were taken on four tracks with each length of track is 480 meters. The data processing was performed with RES2DINV software that results 2D image subsurface resistivity. The results indicate that the weak areas on the track 2 and track 4 with range value of rock resitivitas is 2.72 Ωm to till 86 Ωm , cut the bedding between rocks which have higher resistivity. The weak areas is estimated as the fracture on the depth (2.50 to 40) meters from the ground. Keywords: Wenner-Schlumberger, Dipole-dipole, RES2DINV, Fault Manado.
KOMPOSISI PAKAN TIKUS EKOR PUTIH (Maxomys hellwandii) DI KANDANG
Authors: Upa Fernandez T. , Saroyo Saroyo , Katili Deidy Y.
Published: July 2019

ABSTRAK Tikus ekor putih (Maxomys hellwandii) adalah hewan endemik Sulawesi dengan status konsevasinya yaitu least concern yang keberadaannya masih kurang diperhatikan. Ancaman utama tikus ekor putih adalah perburuan untuk dijual penelitian ini bertujuan untuk menginventarisasi jenis-jenis pakan tikus ekor putih dan porsinya. Penelitian ini dilakukan untuk memberikan informasi tentang komposisi pakan tikus ekor putih sehingga dapat dimanfaatkan dalam upaya konservasi terutama dalam kegiatan penangkaran dengan upaya domestikasi. Metode yang digunakan dalam penelitian ini ialah ad libitum sampling dengan menghitung berat pakan yang dikonsumsi. Hasil penelitian menunjukkan bahwa komposisi jenis pakan tikus ekor putih terdiri dari: pepaya (51,3%), umbi singkong (15,7%), buah kelapa (15,6%), serangga (belalang) (13,9%),  daun sirih (2,9%),  kulit buah ketapang (0,4%), buah sirih (0,2%), buah beringin (0,1%). Dari hasil penelitian tersebut dapat disimpulkan bahwa tikus ekor putih mengonsumsi buah pepaya lebih dari 50% dari total pakan dan tikus ekor putih bukan spesies herbivora sejati, tetapi cenderung omnivora. Kata kunci: tikus ekor putih (Maxomys hellwandii), endemik, Sulawesi, komposisi pakan COMPOSITION OF FEED WHITE-TAIL RAT (Maxomys hellwandii) IN THE CAGE ABSTRACT White-tailed Rat (Maxomys hellwandii) is an endemic species from Sulawesi with least concern (LC) conservation status. The existence of this species is still less attention. The main threat is hunting White-tailed rats for sale, this research aims to inventory the types of feed and the white rat tail portion. This study was conducted to provide information on the composition of the feed white-tailed rats that can be utilized in conservation efforts, especially in the activities of breeding with domesticated effort. The method used in this study was ad libitum sampling to calculate the weight of feed consumed.From the results obtained that the composition of White-tailed Rat feed types such as: papaya (51.3%), cassava tubers (15.7%), coconuts (15.6%), insects (grasshoppers) (13.9% ), leaf Piper beetle (2.9%), fruit peel Terminalia catappa (0.4%), vine Pieper beetle (0.2%), fruit Ficus sp. (0.1%). From these results it can be concluded that the white-tailed rat eating papaya fruit of more than 50% of the total feed and white-tailed rat is not true herbivorous species, but tend to be omnivorous. Keywords: white-tailed rat (Maxomys hellwandii), endemic to Sulawesi, feed composition
AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL DARI DAUN SOYOGIK (Saurauia Bracteosa DC.)
Authors: Muaja Marfel G.D. , Runtuwene Max R.J. , Kamu Vanda S.
Published: July 2019

AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL DARI DAUN SOYOGIK (Saurauia Bracteosa DC.) ABSTRAKPenelitian ini bertujuan untuk mempelajari akivitas antioksidan dari ekstrak metanol daun Soyogik (Saurauia Bracteosa DC.). Daun Soyogik diekstraksi dengan metode maserasi menggunakan pelarut metanol. Ekstrak pekat kemudian dilakukan pengujian aktivitas antioksidan dengan metode DPPH. Hasil penelitian menunjukkan bahwa ekstrak metanol daun Soyogik memiliki nilai IC50­ sebesar 0,16 ppm.Kata Kunci: Saurauia Bracteosa DC., Ekstrak Metanol, Antioksidan, Nilai IC50. ANTIOXIDANT ACTIVITY OF METHANOL EXTRACT FROM SOYOGIK (Saurauia Bracteosa DC.) LEAVES ABSTRACTThis research aims to study on the antioxidant activity of methanol extract from Soyogik (Saurauia Bracteosa DC.) leaves. Soyogik leaves extracted by maceration method using methanol. Concentrated extract then testing the antioxidant activity by DPPH method. The results showed that the methanol extract of leaves Soyogik have IC50 value of 0.16 ppm.Keywords­: Saurauia Bracteosa DC., methanol extract, Antioxidant, IC50 value
PEMANFAATAN KARBON AKTIF DARI BAMBU SEBAGAI ELEKTRODA SUPERKAPASITOR
Authors: Tumimomor Farly , Maddu Akhiruddin , Pari Gustan
Published: July 2019

PEMANFAATAN KARBON AKTIF DARI BAMBU SEBAGAI ELEKTRODA SUPERKAPASITOR ABSTRAKPada penelitian ini, karbon aktif berbasis bambu telah digunakan untuk pembuatan superkapasitor. Uji daya jerap iodin dilakukan untuk mengukur tingkat serapan pori sampel karbon aktif yang ukurannya relatif kecil (mikropori). Karakteristik bahan karbon aktif yang meliputi struktur kristal dan morfologi permukaannya diuji dengan menggunakan SEM dan XRD. Bahan elektroda dengan komposisi (Karbon aktif : PVDF = 9:1 (b/b)), kolektor arus dan separator telah dirangkai untuk diuji kinerjanya sebagai perangkat penyimpanan muatan listrik. Metode siklik voltametri digunakan untuk melihat kinerja perangkat superkapasitor dengan mengukur nilai kapasitansi spesifik berdasarkan kurva voltammogram. Berdasarkan hasil perhitungan nilai kapasitansi spesifik diperoleh nilai kapasitansi spesifik tertinggi pada superkapasitor dengan elektroda bambu yang diaktivasi dengan steam 50 mL/bar yaitu sebesar  59.50 F.Kata kunci: Karbon aktif bambu, siklik voltametri, kapasitansi spesifik, superkapasitor.  UTILIZATION OF BAMBOO BASED ACTIVATED CARBON AS SUPERCAPACITOR ELECTRODE ABSTRACT In this study, bamboo based activated carbon has been used for fabrication of supercapacitors. Iodine absorption test is performed to measured absorption level porous activated carbon sample size is relatively small (microporous). Characteristics of the activated carbon material covering the surface morphology and structure were tested using SEM and XRD. Electrode materials with composition (Activated charcoal: PVDF = 9: 1 (w / w)), the current collector and separator has been assembled to be tested its performance as an electrical charge storage device. The test results by cyclic voltammetry method was to look at the performance supercapacitor devices at once to obtain the value of the capacitance curve obtained voltammograms. Based on the results of the calculation of the capacitance, the highest capacitance values obtained in the supercapacitor with activated carbon electrodes in bamboo steam 50 mL / bar with a capacitance value is 59.50 F / g.Keywords: Bamboo activated carbon, cyclic voltammetry, the specific capacitance, supercapacitor.
IDENTIFIKASI PERUBAHAN STRUKTUR DNA TERHADAP PEMBENTUKAN SEL KANKER MENGGUNAKAN DEKOMPOSISI GRAF
Authors: Morihito Rondo V.S.A , Chungdinata Stephanie E , Nazareth Timboeleng A , Pulukadang M Iqbal , Makalew Roy A.M , Pinontoan Benny
Published: July 2019

IDENTIFIKASI PERUBAHAN STRUKTUR DNA TERHADAP PEMBENTUKAN  SEL KANKER MENGGUNAKAN DEKOMPOSISI GRAFABSTRAKKerusakan DNA adalah salah satu penyebab yang dapat mebuat sel normal bertumbuh menjadi sel kanker. Hal ini dikarenakan DNA yang rusak dapat menyebabkan mutasi di gen vital yang mengontrol pembelahan sel sampai terjadi pembelahan sel yang tidak terkendali dan memicu pertumbuhan sel kanker. Beberapa mutasi dibutuhkan untuk mengubah sel normal menjadi sel kanker. Dalam hal ini, teori dekomposisi graf digunakan untuk menganalisa proses terjadinya pertumbuhan sel kanker yang dimulai dari kerusakan DNA yang menyebabkan terjadinya mutasi gen. Dengan teori dekomposisi graf, sebuah graf bisa difaktorkan ke dalam beberapa subgraf. Pemfaktoran ini dapat digunakan untuk melihat pola perubahan hubungan antar objek. Tujuan dari penelitian ini untuk mengidentifikasi struktur DNA terhadap pembentukan sek kanker dengan menggunakan dekomposisi graf. Yang  diidenfikasi adalah mutasi delesi, addisi, dan substitusi dimana dari mutasi-mutasi ini dilihat hasil dekomposisi graf dan apakah dari ketiga mutasi ini dapat membentuk sel kanker.Kata Kunci : Struktur DNA, Sel Kanker, Dekomposisi Graf, Perfect Matching, Hamilton cycle IDENTIFICATION OF CHANGES OF DNA STRUCTURES ON CANCER CELL FORM USING GRAPH DECOMPOSITIONABSTRACTDNA damage is one of the causes that can make normal cells grow into cancer cells. This is because damaged DNA can cause mutations in vital genes that control cell division until uncontrolled cell division and trigger the growth of cancer cells. Some mutations are needed to convert normal cells into cancer cells. In this case theory of graph decomposition will be used to analyze the process of cancer cell growth that starts from the DNA damage that causes gene mutation. With the graph decomposition theory, a graph can be factored into several subgraphs. This factoring can be used to see patterns of relationship changes between objects. The purpose of this study was to identify the structure of DNA against the formation of cancer cells by using decomposition graph. What will be identified are the deletion mutations, additions, and substitutions from which these mutations are seen in the decomposition of the graph and whether these three mutations can form cancer cells.Keywords :  Structure of DNA, Cancer Sel, Dekomposition Graph, Perfect Maching, Hamilton cycle
Karakteristik Terasi Jeroan Ikan Cakalang (Katsuwonus pelamis L) Berdasarkan Hasil Uji Organoleptik
Authors: Nenabais Fernando , Fatimah Feti , Kamu Vanda S.
Published: July 2019

KARAKTERISTIK TERASI JEROAN IKAN CAKALANG (Katsuwonus pelamis L) BERDASARKAN HASIL UJI ORGANOLEPTIKABSTRAKTerasi adalah suatu jenis bahan penyedap makanan yang berbentuk padat, berbau  khas, hasil fermentasi udang atau ikan atau campuran keduanya dengan  garam,atau  tanpa bahan tambahan lain yang diizinkan. Tujuan dari penelitian ini Menentukan karakteristik terasi  dari jeroan ikan cakalang berdasarkan Hasil Organoleptik. Metode yang dikembangkan Teknik Kering (TK) dan  Teknik Semi Basah (TSM), dengan proses lama fermentasi (t): (5,10, dan 15 hari ) serta konsentrasi garam (G) : ( 5%, 10% dan 20%).  Pengujian Organoleptik berdasarkan SNI No. 2716:2016. Penelitian ini dilakasanakan Fakultas MIPA dan selama 2-3 bulan. Hasil pengujian mendapatkan terasi terbaik dari Teknik Kering, berdasarkan uji kenampakan, Bau, Rasa dan Tekstur yaitu waktu fermentasi 15 hari (G3) dan konsentrasi garam 20% (G3). Untuk Sampel TTK (G3,t3)  uji kenampakan : 7,227, Bau: 7,345, Rasa : 7,299 dan Tesktur : 7,33, sehingga berdasarkan SNI Terasi Udang No. 2716:2016, minimla uji organoleptik 7, maka pengujian pada sampel TTK (G3,t3) sesuai dengan standar yang ditetapkan  dengan Standar deviasi (1,96) dan P (95%).Kata kunci : Terasi, Organoleptik, Ikan Cakalang, Karakteristik THE OPTIMIZATION AND CHARACTERIZATION OF FISH PASTEINNARDS FROM SKIPJACK,  (Katsuwonus pelamis, L). ABSTRACT Terasi (the Indonesian seafood fermented paste) is a type of solid-shaped flavoring ingredients, with its distinctive odor, is a fermented shrimp or fish or a mixture of both with salt, orno other permitted additives. The aim of this research is to determine the characteristics of Terasi from the offal of skipjack tuna based on the Organoleptic Test Result. The methoddevelopedthrough Dry Technique (TK) and Semi-Wet Technique (TSM), with the fermentation process (t): (5,10 and 15 days) and salt concentration (5%, 10% and 20%). Organoleptic Test is based on the Indonesian National Standard (SNI) No. 2716: 2016. The test result obtained the best Terasithrough Dry Technique, based on the appearance, odor, taste and texture test that were 15 days of fermentation process (G3) and 20% of salt concentration (G3). For the sample of TTK (G3, t3) the appearance test : 7.227, Odor: 7,345, Taste: 7,299 and Texture: 7,3302. So that based on the SNI, Terasi UdangNo. 2716: 2016, with the minimun organoleptic test of 7, has determined that the testing on TTK samples (G3, t3) is in accordance with the Deviation Standard (1.96) and P (95%).Keyword: Terasi, Organoleptic, Skipjack tuna, Characteristic
A Framework for Wetlands' Ecological Integrity Assessment in Rwanda
Authors: Kubwimana Jean Paul , Kanyamibwa Sam
Published: July 2019

Wetland's Ecological Integrity Assessment refers to "an assessment approaches that measures overall wetland condition with an emphasis on the structure, composition, and function of an ecosystem in reference to a natural habitat of the region" It provides government agencies, and key stakeholders with critical information on factors that may be degrading, maintaining or helping to restore an ecosystem, therefore supporting decision making. With continued degradation of protected areas over the last four decades, wetland ecosystems served as soft edges for biodiversity and genetic resources in Rwanda. However, there is no holistic framework to assess the ecological integrity of these important ecosystems, and the little and incomplete information collected is scattered, hence difficult to access. Consequently, wetlands are under continued overexploitation, reclamation pollution, biodiversity and ecological functions loss (Singh et al. 2015). Throughout a six months period, with a participatory planning process that involved individual expert consultations and workshops, supported with a robust literature review and the established multidisciplinary technical team, we came up with a holistic and Integrated Framework for Wetlands' Ecological Integrity Assessemnt. The framework is cost-effective and was designed to collect and analyse data on the structure (soil, hydrology), composition (biota), and functions (Ecosystem services mapping and valuation) as well as the social economy status within and around wetland landscapes in the region. In addition, the ARCOS Biodiversity Information Management System (ARBIMS), an online platform for data sharing, was developed and upgraded. The developed assessment framework will help to mobilize and integrate biodiversity data into relevant documents to inform wetland management plans and support other investment decisions in Rwanda.
La sédation profonde et continue maintenue jusqu’au décès à défaut d’une demande de mort anticipée, dans un contexte de souffrance morale : comment l’appréhender ?
Authors: Louarn Catherine , Plançon Morgane
Published: July 2019

La sédation profonde et continue maintenue jusqu’au décès (SPCMJD) à la demande du patient bouscule les pratiques et mobilise les valeurs soignantes. Nous choisirons d’aborder le lien entre demande de mort anticipée et SPCMJD. Dès lors qu’elle est émise dans le contexte d’une détresse psychologique, comment la penser ? Dans ce contexte la caractérisation du syndrome de démoralisation au moment de la phase terminale nous paraît cliniquement pertinente.
Perception of entomophagy by residents of Korea and Ethiopia revealed through structured questionnaire
Authors: Ghosh S. , Jung C. , Meyer-Rochow V.B. , Dekebo A.
Published: July 2019

A survey involving 329 randomly selected respondents (172 male; 157 female) from Korea and 203 (109 male; 94 female) from Ethiopia has revealed that significantly fewer of the Ethiopian respondents were prepared to accept insects as human food than Koreans did. Vertical transmission of entomophagic knowledge was important for Koreans, but of negligible importance to Ethiopians. In both cultures male subjects were more inclined to accept insects as food. Koreans and Ethiopians would accept cookies containing insect components in preference to other food items with insects, but only 11.1% of the Ethiopians versus 45.6% of the Koreans would be willing to serve a meal containing insects. The results show that the widely held opinion that citizens of industrialised, developed countries were less inclined towards eating insects than inhabitants of poorer, less industrialised, developing countries is not generalizable and therefore is wrong. Reasons for the observed differences in attitudes towards entomophagy between Ethiopians and Koreans appear to be related to history, habits, traditions and familiarity as well as possibly religious beliefs and the channels through which the information on insects as human food reaches the people.
Effects of pulsed ultrasound at 20 kHz on the sonochemical degradation of mycotoxins
Authors: Liu Y. , Li M. , Liu Y. , Bai F. , Bian K.
Published: July 2019

Mycotoxins, such as aflatoxin B1 (AFB1), deoxynivalenol (DON), zearalenone (ZEA) and ochratoxin A (OTA) are toxic secondary compounds that can reduce the quality of many kinds of food and may lead to other ill effects, both in humans and animals. This study aimed to investigate the potential of the ultrasound (US) treatment in the removal of AFB1, DON, ZEA and OTA from aqueous solution and maize by examining degradation rates and influencing factors of ultrasonication, such as the initial concentrations, power intensity, sonication duration, and duty cycle. The results showed that US treatment could simultaneously reduce AFB1, DON, ZEA and OTA effectively in aqueous solution. The degradation of mycotoxins was significantly affected by the ultrasonic intensity (2.2-11 W/cm3) and sonication time range from 10 to 50 min. DON is more stable than AFB1, ZEA, and OTA in the US treatment. It was found that, for the first time to our knowledge, the highest degradation rates of AFB1, DON, ZEA and OTA were attained at a duty cycle of 25%, and they were 96.5, 60.8, 95.9 and 91.6%, respectively. US strategy can be considered as an effective treatment to degrade the mycotoxins in aqueous solutions and food matrix.
El Castelo dos Mouros y la iglesia de São Pedro de Canaferrim en Sintra (Portugal). Un análisis desde la Arqueología de la Arquitectura
Authors: Barahona Oviedo Marisa , Murillo Fragero José Ignacio , Cauce Cañizares Carlos
Published: July 2019

El conjunto monumental Patrimonio de la Humanidad del Castelo dos Mouros de Sintra (Portugal) es un complejo arquitectónico formado por dos recintos amurallados, con una gran cisterna en el interior del mayor, y la pequeña iglesia de São Pedro de Canaferrim extramuros. Considerado “obra de moros” en la historiografía, y enmascarado en el siglo XIX bajo una restauración romántica que le dotó de aires de cuento, su análisis desde la Arqueología de la Arquitectura retrasa la construcción originaria del conjunto hasta la segunda mitad del siglo XII, en relación con la conquista cristiana de Lisboa.