bluuebunny/crossref_metadata_2025 huggingface dataset:
Perfiles de autor en repositorios institucionales
Authors: Genovés Patricia
Published: November 2017

Este trabajo describe las funciones y utilidades de la implementación de perfiles de autor en repositorios institucionales, como un servicio de valor agregado dirigido a acrecentar su uso entre los miembros de una institución y mejorar la visibilidad de la producción científica alojada en el repositorio. Incluye un relevamiento de servicios de perfiles de autor implementados en repositorios institucionales argentinos y extranjeros. Advierte que, ante el establecimiento de mandatos nacionales de depósito, la necesidad de contar con repositorios institucionales fuertes y sostenibles en el tiempo es aún mayor que antes. Integrar a los repositorios las funcionalidades de los sistemas curriculares y de gestión de información científica y tecnológica es un camino para lograr esa fortaleza, y los perfiles de autor son el resultado visible de dicha integración. Señala que el beneficio que representa para un autor contar con un perfil público en el repositorio de su institución es equivalente al beneficio que para una institución representa contar con un repositorio digital, en términos de ventaja competitiva, valor añadido, incremento de la visibilidad y facilidades de recuperación y acceso a la producción generada.
Aproximaciones al estudio de contextos informacionales de instituciones cubanas del sector de educación superior
Authors: Ponjuan Dante Gloria
Published: November 2017

Objetivos: se pretende un acercamiento al comportamiento del contexto informacional de un conjunto de organizaciones cubanas que pertenecen al Sector de la Educación Superior. Metodología: se realizó un estudio exploratorio con una muestra de instituciones de información cubanas. Para este estudio se distribuyó una encuesta anónima a profesionales que trabajan en diferentes instancias informacionales de diferentes instituciones cubanas pertenecientes al sector de educación superior. Las respuestas fueron libres, o sea sin mediar un formato para marcar opciones, lo que permitió que se pronunciaran sin sesgo alguno acerca de los aspectos ya mencionados. Resultados: se aprecia una alta concentración de respuestas que ubican tanto a la gestión como a la Tecnología en el foco principal de atención para los participantes. Es de destacar que en estos dos temas existe un balance entre las miradas positivas y las negativas. Las soluciones propuestas guardan relación con los temas que se mencionan como negativos. No se apreciaron diferencias significativas con relación a otros sectores que se encuentran en fase de estudio en la actualidad. Se aprecia el predominio de los entornos reactivo-adaptativos, al igual que en la población analizada, pero hay una reducción en la categoría inestable-turbulento, por debajo de la población, que puede ser típica de un sector dedicado a la educación. Conclusiones: un análisis de los contextos puede contribuir a identificar aquellos aspectos que pueden tener una influencia positiva o negativa para un aspecto en particular, en este caso lo relativo a la información en las organizaciones, sugiriendo que la atención a su solución favorecería el funcionamiento del sistema y su efectividad. Algunas de las valoraciones positivas encuentran también lecturas negativas por parte de los encuestados, que buscan el perfeccionamiento de determinados aspectos dentro de temas más genéricos. Se emitieron recomendaciones a las instituciones participantes.
Authors: Pazin Vitoriano Marcia Cristina de Carvalho
Published: November 2017

Apresenta um estudo sobre a presença do tema da Gestão da Informação em artigos de temáticas arquivística. O objetivo é identificar como a comunidade científica tem tratado a existência de interface entre as duas áreas no que se refere à presença de elementos da Gestão da Informação, preconizada pela Ciência da Informação, em relação às atividades específicas da Gestão Documental. Como procedimento metodológico, foi um levantamento de bibliografia produzida ao longo das últimas duas décadas (1997-2017) por pesquisadores brasileiros sobre o tema Gestão Documental, visando identificar, dentre os trabalhos elencados, quantos tratam o tema da Gestão da Informação, central ou subsidiariamente e de que forma esses temas são tratados. Como resultados, foram identificados 21 artigos, divididos em três categorias de análise, que demonstram o estado das discussões sobre a relação entre Gestão da Informação e Gestão Documental.
René Zavaleta, historiador de lo político. Seis propuestas para leer Lo nacional-popular en Bolivia
Authors: Giller Diego Martín
Published: October 2017

En 2016 se cumplieron treinta años de la aparición de Lo nacional-popular en Bolivia, de René Zavaleta Mercado. Se trata, sin dudas, de una de las obras más importantes de las ciencias sociales latinoamericanas en general, y de las bolivianas en particular. ¿Cómo leer una obra escrita en otro tiempo y lugar? ¿Cómo abordar una obra póstuma e incompleta escrita hace ya más de tres décadas? ¿Ante qué clase de libro estamos? ¿Cuál es su actualidad? En este artículo intentaremos responder estas preguntas a través de seis propuestas de lectura.
Revolución teórica y epistemología política: las lecciones de Lo Nacional-popular en Bolivia
Authors: Ortega Reyna Jaime
Published: October 2017

Con motivo del treinta aniversario de Lo nacional-popular en Bolivia se realizó una reflexión a propósito de dicha obra que busca profundizar en su sentido epistemológico. Para ello se propone una lectura a partir de conceptos como los de método y ciencia. Se argumenta que la estructura argumental apela más que a un método universal a la conformación de un objeto de estudio específico. La tensión entre universalidad y particularidad se pone a prueba en distintos momentos de la obra, particularmente en la relación entre excedente y Estado. Dicha relación es la constatación de las tensiones al seno de las renovaciones del discurso marxista que acontecieron tras la intervención de Louis Althusser.
La persistencia de lo nacional-popular (a propósito de historia y política en René Zavaleta Mercado)
Authors: Starcenbaum Marcelo
Published: October 2017

El objetivo de este trabajo es analizar los modos específicos de articulación entre historia y política en la obra de Zavaleta Mercado y aproximarse a los modos diferenciados en los cuales en dicho trabajo es captada la experiencia de la Revolución Nacional. A través de una lectura de sus trabajos más significativos, constatamos que el problema de lo nacional-popular constituye un elemento de permanencia a lo largo de toda su obra. Veremos que, más allá de las diferentes etapas que atraviesa su trabajo, la experiencia de la Revolución Nacional es objeto de una perspectiva analítica en la que la interpretación de la política está asociada a una fuerte noción de historicidad.
Quality Management System Program of in Vitro/in Vivo Test Facility of Boron Neutron Capture Therapy at Kartini Research Reactor
Authors: Widarto Widarto , Atmoko Isman Mulyadi Tri , Wijaya Gede Sutresna
Published: November 2017

The quality manajement system program of in vitro / in vivo test facility of  Boron Neutron Capture Therapy (BNCT) methode as quality assurance requirement for utilization of radial pearcing beamport of Kartini research have been done.  Identification and management of technical specification and parameters meassurement of to the radial piercing beamport have been determined for preparing in vitro / in vivo test facility. The parameters are epithermal neutron flux is  9,8243E+05  n cm-2 s-1and  thermal neutron flux is 3,0691E+06 n cm-2 s-1, radiation shielding of parafin,  dimension and size  of piercing radial and instrumentatin and control system for automatic transfer of in vitro / in vivo samplels have been documented. Management system of the documents for fullfil  basic guidance to perform working job of in vitro / in vivo at the piercing radial beamport of Kartini Research Reactor in order purpose utilization of the reactor  for safety worker of the radiation area, society  and invironment beeing safely
Optimization of a Beam Shaping Assembly Design for Boron Neutron Capture Cancer Therapy Facility Based on 30 MeV Cyclotron
Authors: Ardana I Made , Kusminarto Kusminarto , Sardjono Yohannes
Published: November 2017

A series of simulations has been carried out using a Monte Carlo N Particle X code to find out the final composition and configuration of a neutron Beam Shaping Assembly (BSA)  to moderate the fast neutron flux which is generated from the thick disk-type beryllium target. The final configuration for neutron BSA design included 35 cm lead as reflector, 39 cm alumina as moderator, 8.2 cm lithium fluoride as fast neutron filter and 0.5 cm boron carbide as thermal neutron filter. Bismuth, lead fluoride, and lead were chosen as the aperture, reflector, and gamma shielding, respectively. The disk-type of beryllium target is 19 cm in diameter with 0.5 cm thickness which is covered by copper plate to hold the water pressured coolant. A higher yield of neutron production requires a higher intensity of proton beams, which generate much heats and causes the target material to melt. Therefore, it is useful to consider the temperature distribution on the target material with ﬂowing water coolant by means of computer modeling while designing the target. ANSYS-Fluent code will be used to estimate the thermal transfer and heat calculation in a solid target during beam irradiation. Epithermal neutron flux in the suggested design were 1,03x109 n/cm2 s, with almost all IAEA parameters for BNCT BSA design has been satisfied.
CREATIVE ENVIRONMENTAL ENERGY TECHNOLOGY ASSESSMENT HYDROELECTRIC POWER PLANT (CASE STUDY OF WONOGIRI RESERVOIR)
Authors: Hidayani Feby , Sardjono Yohanes , Fandeli Chafid , A.R Rukmini
Published: November 2017

Hydroelectric power plants in Indonesia are widely developed. This is because the water supply in Indonesia is quite abundant. Several large reservoirs in Indonesia, in addition to being used for water reservoirs, are used to produce electricity. Wonogiri is a region that is located in Central Java province, where most of the region is arid land that cannot be planted in the dry season. In the rainy season the abundance of water plants to die and the soil is such that in the dry season crops do not grow well. Plans for the construction of Gajah Mungkur started in 1964, and it is designed to be a multipurpose dam project that aim to control floods, supply water for irrigation and hydropower in the Solo River valley. The master development plan was formulated in 1972-1974 with the help of Overseas Technical Cooperation of Japan. The results of this study include the completion of flooding problems along the Solo River, the increase in agricultural output in Winton community with irrigation facilities and good infrastructure, availability of electricity for communities around the dam and improving the local economy as the development of inland fisheries and tourism sectors.
OPTIMIZATION OF COLLIMATOR NEUTRON DESIGN FOR BORON NEUTRON-CAPTURE CANCER THERAPY (BNCT) BASED CYCLOTRON 30 MeV
Authors: Payudan Aniti , Haryadi Aris , Abdullatif Farzand
Published: November 2017

This research in BNCT has a goal to design a collimator that can be used for cancer therapy. Simulations were carried out by MCNPX software. A collimator is designed by cyclotron 30 MeV as a neutron generator. Independent variables varied were material and thickness of each collimator’s component to get five of IAEA’s standard of the neutron beam. The result is two collimator designs that can pass all IAEA’s standard. Those designs are cyclotron collimator I and cyclotron collimator II. Collimator designs obtained are tube collimator consisting of a cylindrical target 7Be length of 1.4 cm and radius 1 cm, a lead wall with thickness 23 cm, cylindrical heavy water moderator (D2O) with radius 3 cm. Filter Cd-nat for cyclotron collimator I with a thickness of 1 mm and a radius 3 cm. Cyclotron collimator II uses 60Ni with a thickness of 5 cm as a filter. The radius aperture is 3 cm. These two collimator designs can be used for cancer treatment with BNCT. Dosimetry calculation and manufacture of prototypes are needed to test the application of this design.
The seizure semiology consistent with frontal lobe symptomatogenic zone in children
Authors: Öztoprak Ülkühan , Yalnızoğlu Dilek , Oğuz Kader Karlı , Ergun Eser Lay , Söylemezoğlu Figen , Bilginer Burçak , Akalan Nejat , Topçu Meral , Turanlı Güzide
Published: October 2017

The aim of this study is to analyze the seizure semiology consistent with frontal lobe symptomatogenic zone in childhood. We analyzed 549 videotaped seizures from 79 patients (mean age 9.9 ± 3.8 years). Magnetic resonance imaging was normal in 30 patients. The seizures in the time interval of 10 p.m. to 6 a.m. were considered as nocturnal. The mean number of seizures per patient was 6.8 ± 7.3. The mean seizure duration was 25.7 ± 26.9 sec; postictal confusion was 27 ± 16.1 sec (7-92 seconds). The seizures were observed in sleep with a rate of 56.8%; 43.1% of them were during wakefulness. Overall 50.4% of the seizures occured during night-time sleep. Tonic seizure (77.2%) was the most frequent simple motor seizure. Versive seizures were the second most frequent type of simple motor seizure (26.7%). Clonic seizures were 17.7%, complex motor seizures were 20.5%, and dialeptic seizures were 3% of all the seizures. Epileptic spasm, myoclonic seizures, aphasia, and akinetic semiologies were not observed. Vocalization was observed in 16% of the seizures. Frontal lobe seizures in childhood have a short duration, occur frequently, especially during night time sleep, and have a brief postictal period. Tonic semiology, versive semiology are the most frequent seizure semiologies; hypermotor and secondary generalized tonic clonic seizures and vocalizations are observed less in children compared to adults.
Increasing vitamin D deficiency in children from 1995 to 2011
Authors: Seo Ji-Hyun , Youn Hee-Shang , Woo Hyang-Ok , Park Chan-Hoo , Lim Jae-Young , Park Eun-Sil , Park Ji Sook , Yeom Jung Sook , Kim Hye-Jung , Chung Hye Jin , Park Jun-Je
Published: October 2017

Serum concentrations of 25-hydroxy vitamin D < sub > 3 < /sub > [25(OH)D3] and vitamin D deficiency have changed over time in Korean children. This study assessed serum 25(OH)D3 concentrations and the prevalence of vitamin D deficiency in children. Serum samples were obtained during 1995 to 2011, and 25(OH)D3 concentrations were measured by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Tests of 948 serum samples showed that median 25(OH)D < sub > 3 < /sub > concentrations decreased significantly (P < 0.001), and the rates of vitamin D deficiency/insufficiency increased significantly (P < 0.001), over 15 years. Median serum 25(OH)D < sub > 3 < /sub > was significantly higher in males than in females in 2005-2006 and 2010-2011 (P < 0.001), whereas the rates of vitamin D deficiency/insufficiency were higher in subjects aged 11-15 years than in the other two age groups after the year 2000. These increases over time in vitamin D deficiency/insufficiency may be due to the changing lifestyles of children. Outdoor physical activity should be strongly encouraged.
Evaluation of complicated and uncomplicated parapneumonic effusion in children
Authors: Gayretli-Aydın Zeynep Gökçe , Tanır Gönül , Bayhan Gülsüm İclal , Aydın-Teke Türkan , Öz Fatma Nur , Metin-Akcan Özge , Kaman Ayşe
Published: October 2017

Parapneumonic effusion (PPE) and empyema are most often seen as a complication of bacterial pneumonia and occasionally associated with atypical bacteria or viruses. The aims of this study were to describe and compare demographic characteristics, clinical, laboratory, microbiological findings and treatment modalities of patients with PPE and empyema. We retrospectively reviewed 116 pediatric patients with PPE and empyema. Seventy (60.3%) had pleural empyema and 46 patients (39.6%) had PPE. The median age of patients with empyema [72.0 months (IQR 68.0 months)] was lower than the patients with PPE [92.5 (IQR 80.0 months)] (p=0.003). Children in the empyema group had significantly more dyspnea symptoms than the children with PPE (p=0.022). Mean fever duration before hospitalization was similar in both groups. Streptococcus pneumoniae and group A streptococcus were the most common causes of empyema. All of the patients were treated with intravenous antibiotics. In addition to medical treatment, tube thoracostomy was performed in 59 of 70 (84.3%) patients in empyema group; 27 (45.8%) of them required intrapleural fibrinolysis also. In the presence of antibiotic treatment failure or in cases with moderate or large pleural effusion with loculations and clinical deterioration; it is necessary to perform drainage of the purulent fluid by tube thoracostomy, to add intrapleural fibrinolytics or to perform video-assisted thoracoscopic surgery (VATS), in order to enhance prompt recovery.
Complete androgen insensitivity syndrome associated with bilateral sertoli cell adenomas and unilateral paratesticular leiomyoma: A case report
Authors: Savaş-Erdeve Şenay , Aycan Zehra , Keskin Melikşah , Çetinkaya Semra , Karaman Ayşe , Apaydın Sema , Çakmakçı Emin
Published: October 2017

Complete androgen insensitivity syndrome (CAIS) disorder of sex development due to mutations that cause function loss in androgen receptors in 46, XY individuals. The risk of malignancy in CAIS is 5-10% until the age of 25 years. A 17-year-old patient raised as a female presented to our clinic complaining of amenorrhea. She had a history of surgery for inguinal hernia at the age of 2 years. The patient's niece of the same age had been diagnosed with CAIS at our department and gonadectomy had been performed six months ago. She had four other nieces with the same diagnosis. Her external genital appeared phenotypically female. On physical examination, breast development was Tanner stage 5 and pubic hair Tanner stage 2 with scarce axillary hair. The gonad was palpated in the left inguinal region. Chromosome analysis revealed 46, XY and sex determining region Y (SRY) was positive. The patient was diagnosed as CAIS with laboratory and radiology results. The Sexual Orientation and Gender Identity Committee decided on gonadectomy. Histopathological evaluation of the gonad revealed bilateral Sertoli cell tumor and right paratesticular leiomyoma.
A celiac case mimicking mitochondrial neurogastrointestinal encephalomyopathy (MNGIE)
Authors: Aksoy Erhan , Tıraş-Teber Serap , Deda Gülhis
Published: October 2017

Celiac disease (CD) is a chronic disease involving a number of systems in addition to gastrointestinal tract. Although not clear, it has been supposed that the neurological symptoms of CD develop due to immune-mediated mechanisms. In this paper, we present a rare case diagnosed with CD at 12 years of age, and presented with a clinical picture resembling mitochondrial neurogastrointestinal encephalomyopathy (MNGIE). She had onset of her neurological symptoms at the age of 6 years, they progressed despite various therapies, and she became wheelchair-bound.
Fonsecaea pedrosoi: A rare cause of dental infection and maxillary osteomyelitis in a child with acute lymphoblastic leukemia
Authors: Tural-Kara Tuğçe , Özdemir Halil , İnce Elif , İleri Talia , Çiftçi Ergin
Published: October 2017

Dental lesions are commonly seen in children with malignancy. We report a child with acute lymphoblastic leukemia who had black-brown dental lesion during the febrile neutropenic episode. Histopathological examination of dental lesion showed fungal hyphae and conidia. F. pedrosoi that was isolated from the tissue culture. The patient was treated with intravenous liposomal amphotericin B therapy for 5 weeks and he was discharged on oral voriconazole. On follow-up, clinical symptoms recovered. Although F. pedrosoi may be an unusual causative agent of dental infection and maxillary osteomyelitis, it should be considered in patient with black-brown lesions which do not respond to antibacterial treatment.
EFEK SISA KOMPOS SAMPAH KOTA DENGAN BERBAGAI TAKARAN PUPUK BUATAN TERHADAP PERUBAHAN BEBERAPA SIFAT KIMIA REGOSOL DAN PRODUKSI TANAMAN JAGUNG SEMI (Baby Corn)
Authors: Ruhaimah Ruhaimah , Yasin Syafrimen , Novalina Novalina
Published: October 2017

A pot trial about residue effects of compost and commercial fertilizer on Chemical Characteristics of Regosol and Production of Baby Corn for the second planting time.  This research was conducted at Greenhouse of Agriculture Faculty and P3IN Laboratory, Andalas University from August to December 2006. Lettuce was the first plant planted on the pot, then it was continued with Baby Corn. This experiment was arranged based on 3x5 Factorial Randomized design with three replications. The first factor was compost; 0 ton/ha, 5 ton/ha, and 10 ton/ha. The second factor was commercial fertilizer: 0%, 25%, 50%, 75%, and 100% of recommendation. Based on the research, it was found that the residue of residue interaction with fertilizer influenced to the growth and yield of Baby Corn for the second planting time. From the statistical analysis of the result, it cwas concluded that 5 ton compost/ha (20g compost/pot) was able to increase the chemical charesteristics of Regosol, they were pH H2O, KTK, C-organic and N-total. Whereas for pH KCL, the available-P and basic cations, its valueable measure was started from 5 ton/ha ( 20g/pot). For the analysis of  plant in the concentration of  N and P, it was taken from the treatment of 4 ton/ha (40 g/pot) by using 100 % fertilizer.Key word : The Residue Effect of Manure
EFEK SISA ASAM HUMAT DARI KOMPOS ALANG-ALANG DAN PENGELOLAAN AIR DALAM MENGURANGI KELARUTAN BESI (FE) PADA TANAH SAWAH BUKAAN BARU
Authors: Herviyanti Herviyanti , Gusnidar Gusnidar , Alfina Rina
Published: November 2017

The research about residue effect of humic acid from imperata compost and water management to decrease the dissolved of iron (fe) on recently used ricefield had been conducted from march till august 2007.  The objective is to study residue effect of humic acidity aplication and water management to controlling Fe and to increase rice production on recently used ricefield.  The experiment using design factorial 2 x 4 with three replication wich is place as the split plot.  The major factor is water management consisted of two treatment, thos were continously flooded (P1) and flooded and dried (intermittence) with two week interval (P2). The minor factor are four level from residue effect of humic acid  (0, 200, 400, 600 ppm).  The result of this study can provided the information that residue effect of humic acid at 600 ppm can reduce solubility of Fe2+ from 327,91 to 37,53 ppm for continously flooded and from 173,51 to 38,13 ppm for intermitten flooded. And the yield of rice (dry weight of 1000 grain ad straw) increase as much as 4,9 and 5,38 g with residue effect of humic acid at 600 ppm combination with intermittence flooded.Key word : humic acid, iron, recently used ricefield, intermittence, flooded.
EVALUASI TERHADAP PERUBAHAN STATUS BEBERAPA HARA TANAH SETELAH 10 TAHUN DI BUKIT GAJABUIH PADANG
Authors: Hermansah Hermansah , Juniarti Juniarti , Pribadi Utami Maya
Published: November 2017

This experiment is about the evaluation of characteristic alteration of soil nutrients after ten years at tropical rain forest Bukit Gajabuih Gunung Gadut Padang. This experiment was conducted from November 2006 - April 2007.  This experiment is arranged based on anova design with three treatments which was based on three great groups of land ( oxic-dystroudept (eutriccc, aquic), oxic-dystroudept (xanthic), oxic-typic-dystroudept (xanthic)).  The purpose of this experiment was to study the alteration of soil fertility characteristics  (K, Ca, Mg, Na, P and C/N) in ten years period (1995-2005) in tropical rain forest at Bukit Gajabuih Padang, to observe vegetation variety alteration, and the relationship with the land fertility characteristics.  From the experiment was found that nutrient status of the soils altered after ten years (*1995-2005).  Available P content increased about 77%, exchangeable Na and K  increased 86,04% and 53.65%, respectively.  On the other hand, exchangeable Mg and Ca decreased 3,05% and 65,88%, respectively.  Land C/N ratio decreased about 21,39%. The experimental plot had low soil pH.Key Words: tropical rain forest, soil nutrient status
PENGUKURAN INFILTRASI TANAH BUKIT PINANG-PINANG KAWASAN HUTAN HUJAN TROPIK GUNUNG GADUT PADANG DI LABORATORIUM
Authors: Yulnafatmawita Yulnafatmawita , Asmar Asmar , Enrella Ricci
Published: October 2017

A research about infiltration rate of soils from Pinang-Pinang area, a super wet tropical rain forest gunung Gadut Padang, was conducted in soil laboratory Agriculture Faculty, Andalas University.  Pinang-pinang area is located in Kecamatan Pauh, in the upper footslope of Gadut mountain, functiong as water regulation for the area down under, especially Padang city.  This is caused by the fact that water from the Pinang-Pinang area will fow to the sea through Kuranji river.   This area is supposed to be protected to avoid natural disaster in the area down under.  This research was aimed to determine infiltration rate of soils under different land use in the Pinang-Pinang region.  There were three land use in this area, forest, mixed garden, and bush.  Undisturbed soil samples were taken from each land use by using 11-cm in diameter and 40 cm height tubes.  Soils samples were tightly closed, and brought into laboratory.  Infiltration rate from each soil samples were determined in laboratory.  The results showed that mixed garden gave the highest infiltration rate (38.4 cm jam-1) among the land use tested, and then followed by forest land use, and then bush land.Key Words: infiltration, land use, tropical rain forest
INKUBASI TITONIA PADA TANAH SAWAH TERHADAP ASAM-ASAM ORGANIK
Authors: Gusnidar Gusnidar , Hakim Nurhajati , Prasetyo Teguh Budi
Published: October 2017

The research about “Incubation of titonia for organic acid production in rice field”  has been conducted in soil laboratory Agriculture Collage Andalas University Padang, since  January to August 2005.  The objective of this research was to determine the best method of using titonia to produce organic acids in rice field.  The research had 2 factors, 3 series of titonia application and 5 levels of titonia dossages with 3 replications.  The series are: A1 =  Titonia was mixed with soil and then, the soil was directly flooded;  A2 =  Titonia was mixed with soil and then, let them stay on soil surface for 3 weeks before being flooded; A3 = Titonia was mixed with soil and then, the soil was moistened until field capacity for 3 weeks before being flooded.  The second factor was titonia dossages (0,000; 1,250; 2,500; 3,750; 5,000 g  dry weight of titonia per kg soil). The result showed that organic acids of the soil had been changed as a consequence of titonia application and the incubation with soil.  The highest organic acid production was found  at combination of titonia incubation with soil at field capacity for 3 weeks, that was malat acid (184-489 mgl-1). The others detected were citrate, tartarate, malate, and benzoat acids, butt fenolate acids was not detected.  Keywords: incubation, organic acids, rice field, titonia.
KARAKTERISTIK SORPSI DAN DESORPSI FOSFAT PADA OXISOL DENGAN PENDEKATAN KINETIK
Authors: Hariyanti Mimien
Published: November 2017

The phosphorous sorption and desorption characteristics were studied in Oxisols Padang Siantah West Sumatera. The amount of P (0, 20, 40, 80, 100, 200, 400, 800 g P) was added to 1 gram soil and incubated for 0.04 days (1 hour) , 0.125 days (3 h), 0.25 days (6 h), 0.375 days (9 h), 1,3, 6, 9, 18 dan 36 days. A completely factorial design in triple replication was set up. The results of P sorption and desorption experiment showed that Oxisol had very high sorption with time until 99 from added P. P desorption maximum at the time was 3 days with sorption value 1,67 % from added P.

Keywords : Oxisol, Fe and Al oksides, P sorption, P desorption, time of reaction.
PENGARUH BERBAGAI EKSTRAK AKAR DALAM STIMULASI INFEKSI CENDAWAN MIKORIZA ARBUSKULA (CMA) PADA Tithonia diversifolia
Authors: Agustian Agustian , Delfi Arwie , Maira Lusi
Published: November 2017

In the first stage of arbuscular-mycorrhiza (AMF) fungi development on plant roots showed that root exudates, is a substance that determines the success of the establishment of mycorrhizal symbiosis. This secondary metabolites produced is intended to keep mold growth during the phase preinfection. Therefore, it is interesting to know whether to add the root extract of the plant could enhance CMA fungal infection in its host plant. The purpose of this study was to determine the type of root extract can stimulate CMA infection at the root and its influence on the growth of Tithonia diversifolia. This experiment used Completely Randomized Design (CRD) with 4 treatments and 3 replications, and continued with advanced test DNMRT at level 5%. The treatments assayed were: control, Tris-HCl buffer pH 7 (A), root extract of weed Imperata cylindrica (B); root extract of taro (C), and root extract of cassava (D). Base on the results obtained we concluded that the extract of the roots of weeds, taro and cassava does not give effect to the increased growth of Tithonia. However, the roots extract stimulated and had influenced on the percentage and intensity of AMF infection at the root of Tithonia and the number of spores obtained in the rhizosphere of Tithonia. In this case the root extract of taro showed the best stimulatory effect of infection with the percentage and intensity of infection are 99.3% and 30.59% consecutively with the number of spores found reach 113 spores/ 100 g soil.Key words: Stimulation, arbuscular-mycorrhiza, root extract, Tithonia diversifolia
Perbaikan Sifat Kimia Oxisol dengan Pemberian Bahan Humat dan Pupuk P untuk Meningkatkan Serapan Hara dan Produksi Tanaman Jagung (Zea mays, L.)
Authors: Herviyanti Herviyanti , Anche Chici , Gusnidar Gusnidar , Darfis Irwan
Published: November 2017

A research was carried out at glass house and at Soil Laboratory of Faculty of Agriculture, Andalas University Padang. The experiment was aimed to determine the interaction between humic material from compost and P fertilizer on some chemical properties of Oxisol, nutrient uptake and corn production. This experiment consisted of 2 factors (4 x 4) with three replications which were allocated in completely randomized design (CRD). The first factor was humic material having 4 doses (0, 400, 800, and 1200 ppm) and the 2nd factor was P fertilizer having 4 doses (100%, 75%, 50%, and 25% of recomendation (R)). The result showed that there was : 1) Interaction between humic materials and P fertilizer for the quality the corn seeds. Application of 800 ppm humic material improved the quality of the seeds even though at low level of P fertilizer. 2) Then, it also increased availability of P by 23.03 ppm, N total by 0.09 %, and decreased Al-exch by 0.53 me (100 g)-1 and Fe-exch by 25.62 ppm compared to threatment without application of humic material. Likewise, nutrients (N and P) uptake by plant also increased by 0.28 and 0.03 %, respectively. 3) Application of P fertilizer at 75 % R increased soil P availability by 3.77 ppm, N and P content of plant by 0.43 % and 0.06 %, and seed weight by 13.20 g and decreased Fe-exch by 21.16 ppm, compared to 25 % R of P fertilizer.Keywords : humic material, P- fertilizer, nutrient uptake
TOTAL FENOL DAN AKTIVITAS ANTIOKSIDAN BUBUK KULIT MANGGIS (Garcinia mangostana L.) DARI BUAH SEGAR DENGAN VARIASI LAMA PENYIMPANAN YANG DIOLAH SECARA MEKANIS
Authors: Roza Irwan , Evawati Evawati , Alfia Fadri Rince , Gusmalini Gusmalini
Published: November 2017

This study aims to determine the total content of phenolic compounds and antioxidant activity of mangosteen skin powder from fresh fruit with variations of storage duration which processed mechanically. Methods of research done by determining the total content of phenolic compounds using the method of DPPH free radical scavengers. The fresh mangosteen skin was dried with a drying oven, with a capacity of 0.12 kg/h and a drying rate of 2.79 kg. Furthermore, dry mangosteen skin was milled by grinding machine with 2870 rpm rotation and obtained rendemen mangosteen skin powder as much as 38.04% with water content 8.33%. Total content of phenolic mangosteen powder with variation of storage duration 0 days, 10 days, and 20 days ranged 81.17 mgGAE / g - 195.51 mgGAE /g. The range of IC 50 for the three treatment is 6.80 ppm - 26.47 ppm. The highest total phenolic content and antioxidant activity werw found at zero days of storage.
ANALISIS DEBIT PADA DAS AIR DINGIN MENGGUNAKAN MODEL SWAT
Authors: Rahma Yanti Nika , Rusnam Rusnam , Ekaputra Eri Gas
Published: November 2017

Perubahan penggunaan lahan dari lahan bervegetasi ke non vegetasi mengakibatkan besarnya limpasan (run off) sehingga debit menjadi meningkat terutama pada musim hujan. Penelitian ini dilakukan untuk menganalisis debit pada DAS Air Dingin menggunakan model SWAT dan apakah model SWAT dapat diterapkan dalam mempresentasikan debit pada DAS Air Dingin. Model SWAT memerlukan data iklim, peta dan data tanah, curah hujan, kelerengan dan peta penggunaan lahan. Adapun tahapan yang dilakukan yaitu penyiapan data dan peta, deliniasi DAS, pembentukan HRU, simulasi visualisasi, kalibrasi, dan simulasi dengan model SWAT terkalibrasi. Debit DAS Air Dingin berkisar antara 3 – 30 m3/s. Setelah dilakukan kalibrasi model SWAT dapat mempresentasikan keadaan hidrologi DAS Air Dingin dengan R2 0,76 dan NS 0,64 sehingga model SWAT yang dijalankan dapat dikategorikan memuaskan.
STUDI KARAKTERISTIK HASIL FERMENTASI OLAHAN BENGKOANG (Pachyrizus erosus ) MENGGUNAKAN BERBAGAI KONSENTRASI RAGI
Authors: Dini Hari Purnama , Surya Murtius Wenny , Desri Rahmi Ira
Published: November 2017

Bengkoang (Pachyrizus erosus) adalah tanaman berumbi yang banyak ditanam di Kota Padang. Umbi umumnya dikonsumsi mentah. Untuk itu diperlukan pengolahan lanjut sebagai diversifikasi produk. Penelitian mengenai karakter hasil fermentasi olahan Bengkoang (Pachyrizus erosus) menggunakan berbagai konsentrasi ragi telah dilaksanakan pada bulan Mei - Juli 2017. Penelitian tersebut bertujuan untuk mengetahui karakter fisik, kimia dan mikrobiologi hasil fermentasi Bengkoang menggunakan ragi pada berbagai konsentrasi. Hasil olahan bengkoang yang menjadi objek antara lain bubur, sari dan konsentrat. Sementara konsentrasi ragi yang digunakan adalah 1%, 2%, 3% dan 4% dari berat objek. Dari hasil penelitian diperoleh kadar air berkisar 84,66 % - 96,5 %, pH 3,8 – 4,37 , total gula 1,548% – 11,375% , gula pereduksi 0,0003% - 4,88% total bakteri asam laktat (BAL) 7,38 – 8,46 Log CFU/g dan kadar alkohol 1,06% - 3,03%. Total BAL, total gula, gula pereduksi menunjukkan potensi produk bengkoang fermentasi untuk dibuat minuman dengan manfaat probiotik. Namun demikian diperlukan penelitian lanjutan untuk mengetahui lebih lanjut mengenai hal tersebut.
EFFECT OF METAL NANOPARTICLES ON THE GROWTH OF NGOC LINH GINSENG (PANAX VIETNAMENSIS) LATERAL ROOTS CULTURED IN VITRO
Authors: Nhut Duong Tan , Linh Nguyen Thi Nhat , Loc Nguyen Hoang , Tung Hoang Thanh , Hien Vu Thi , Luan Vu Quoc , Huy Nguyen Phuc
Published: November 2017

Panax vietnamensis (Ngoc Linh ginseng) plays critical roles in pharmaceutical industry because triterpenoid saponins from its roots produce medicine for improving health and treating many diseases. Metal nanoparticles reveal completely new or improved properties based on specific characteristics such as size, distribution and morphology compare to metal ion or salt; and their potential for in vitro plant cultures. Present study investigated the effects of metal nanoparticles including nZnO (0.5-2.5 mg/l), nAg (1-3 mg/l), and nCu (1-3 mg/l) supplemented in free-hormone-MS medium to in vitro Panax vietnamensis lateral root growth. Our results showed that metal nanoparticles have the positive effect on the growth of in vitro P. vietnamensis lateral roots with nAg, nCu, and nZnO. At different concentrations, in vitro P. vietnamensis lateral root growth also has various effects on the growth of lateral roots. In supplemented metal nanoparticle treatments, nCu is the most optimum for in vitro P. vietnamensis lateral root growth; the highest increase was obtained at 1.5 mg/l nCu treatment (99.3% lateral root formation and all root growth indexes are the highest). Besides, 2.5 mg/l nAg is also significantly noticed in ginseng root growth. However, the negative impact on the growth of the in vitro P. vietnamensis lateral roots showed when culture medium contained the highest concentration; such as the root growing inhibition of nCu and nAg above 2.5 mg/l. Especially, this decrease was higher with the application of nZnO0.5-2.5 mg/l (decrease the lateral root number) and 2.5 mg/l (decrease percent of lateral root formation).
La exclusión social bajo el enfoque de género en las comunidades campesinas de Copca y Santa Rosa de Roncha
Authors: Cardenas Espejo Luis Gonzaga , Puchoc Cuestas Esteban
Published: October 2017

En estas últimas décadas, muchos países del Tercer Mundo han alcanzado importantes tasas de crecimiento económico. Sin embargo, en muchos de ellos la tasa de pobreza se ha mantenido o ha disminuido de manera poco significativa. En este contexto, las sociedades sienten la necesidad de desarrollar determinadas estrategias de inclusión social que permitan alcanzar una mayor igualdad de oportunidades y la eliminación de las distancias en la participación social, económica y política entre hombres y mujeres. En tal sentido, en la presente investigación sobre “La Exclusión Social Bajo un Enfoque de Género en las Comunidades Campesinas de Copca y Santa Rosa de Roncha”, se buscó describir y comparar el comportamiento de las características de la exclusión social para determinar cómo es que se originan las diferencias de oportunidades entre hombres y mujeres, las interrelaciones existentes entre ellos y los distintos roles que socialmente se les asigna.

El método científico fue asumido como método general para el desarrollo de la investigación en referencia. Así mismo, se aplicaron como métodos particulares el deductivo e inductivo.

La prueba paramétrica U de Mann Whitney, y la prueba chi cuadrado permitieron establecer como características de exclusión en el área de estudio el nivel de ingreso y el empleo precario.  Como principal conclusión de la investigación

desarrollada se tiene que en la comunidad de Copca el nivel de ingreso y el empleo precario constituyen características de exclusión social. Mientras que en la comunidad de Roncha, sólo el nivel de ingreso constituye una característica de exclusión social.
Pemilihan Supplier Rubber Parts Dengan Metode Analytical Hierarchy Process Di PT.XYZ
Authors: Rimantho Dino , Fathurohman Fathurohman , Cahyadi Bambang , Sodikun Sodikun
Published: November 2017

In order to facing an increasingly competitive world of manufacturing industry, it is necessary to select appropriate suppliers to produce quality products at competitive prices. This requires producers to make efficiency. Supplier selection is one way to make efficiency by considering several factors. In this research, the ideal supplier selection is made on rubber component using AHP (Analytic Hierarchy Process) method with three criteria factors that are considered important by the company such as, production factor (48%), quality (40%), and price (12%). Furthermore, this study shows The TRHI as suppliers with the largest value of 51.6% compared to other suppliers such as IKP (24.8%) and IRC (23.6%).
Analisis Resiko Postural Stress Pada Pekerja Di UD.XYZ Dengan Metode Rapid Upper Limb Assessment
Authors: Sie Katherine Macella Silvanus , Valentino Felix , Dearosa Elvina Yunia , Rahardjo Benedictus
Published: November 2017

UD.XYZ is a company that produce accessories for car. UD. XYZ have a factory that produce car accessories with small size like a safety belt accessories, car pillow, and tissue case. This research will be focus to analyze postural stress risk for worker that produce car accessories. This research is based on the complaints of workers who feel that some parts of their body sick and stiff because the work is a job that has a repetitive movement with almost the same position every time. The posture of the worker will be observed to determine whether the posture has a dangerous risk or not. The method used is the Rapid Upper Limb Assessment that will assess the worker's posture from the waist to the head. Research indicates that the worker's posture score is between 3 to 5 where the score is assessed to suggest that further investigation of posture is necessary. Giving a small desk to the worker and also socializing about good posture while working helps to improve the score from worker posture to 2 to 3 which means that posture can be used and minimize postural stress on the workers.
La utopía y su posibilidad en el "principio esperanza" de Ernst Bloch
Authors: Rojas Castillo John Larry
Published: November 2017

Este artículo busca comprender el sentido de la Utopía y su posibilidad en el primer tomo del principio Esperanza de Ernst Bloch. Se realiza una presentación básica de algunos elementos propios al filosofar del autor que permiten hacer inteligible la utopía como condición de la construcción de la humanidad a través del trabajo. De esta manera se concluye que la utopía es una forma humana y brillante de fantasía que se crea de forma sensata y esperanzada, que nace de la inconformidad con lo dado y que hace posible la crítica de lo presente, lo cual moviliza a la sociedad a construir un mundo sin clases en la que el hombre se naturalice y la naturaleza se humanice, es decir, en donde no exista alienación humana ni natural, sino armónico encuentro. De esta forma, la utopía se acompaña por la conciencia de lo imposible de una satisfacción plena de este deseo, pero al tiempo de lo fundamental de su búsqueda.
Reseña: Lo abierto. El hombre y el Animal
Authors: Rincón Higuera Edisson Eduardo
Published: November 2017

Sin resumen.
Pengembangan Perangkat Pembelajaran Fisika Dengan Menggunakan Model Pembelajaran Kooperatif Tipe STAD
Authors: Kahar Muhammad Syahrul
Published: October 2017

Penelitian ini adalah penelitian pengembangan yang bertujuan untuk mengembangkan perangkat pembelajaran Fisika dalam pembelajaran Kooperatif tipe STAD di kelas E Prodi Pendidikan Matematika. Subjek penelitian ini adalah mahasiswa kelas E Prodi Pendidikan Matematika sebanyak 35 mahasiswa. Pengembangan pembelajaran Fisika ini terdiri dari empat tahap, yakni tahap pembatasan, tahap rancangan, tahap pengembangan dan tahap penyebaran. Hasil penelitian pengembangan ini menunjukkan bahwa: (1). Untuk tes awal diperoleh skor rata-rata kemampuan penguasaan Fisika mahasiswa 61,85 dari skor ideal 100 dengan standar deviasi 11,05 dan berada pada kategori sedang, (2). Untuk tes akhir diperoleh skor rata-rata 75,57 dari skor ideal 100 dengan standar deviasi 6,94 berada pada kategori tinggi. (3). Terdapat peningkatan penguasaan Fisika mahasiswa dari kategori sedang menjadi kategori tinggi, (4).Tanggapan mahasiswa terhadap perangkat pembelajaran Fisika berupa bahan ajar mahasiswa, lembar kerja mahasiswa, dan rencana pembelajaran cenderung positif, (5). Mahasiswa lebih aktif mengikuti kegiatan pembelajaran
Identifikasi Miskonsepsi Buku Ajar Fisika SMA Kelas X Pada Pokok Bahasan Kinematika Gerak Lurus
Authors: Khoiri Hasan , Wijaya Andika Kusuma , Kusumawati Intan
Published: October 2017

Penelitian ini bertujuan untuk memaparkan bentuk-bentuk miskonsepsi pada buku ajar fisika SMA kelas X. Buku ajar dalam penelitian ini, yaitu: (1) Fisika untuk SMA/MA Kelas X Semester I karangan Rinawan Abadi dan Syarifah Isnaini diterbitkan tahun 2012 oleh penerbit Intan Pariwara, (2) Fisika untuk SMA/MA Kelas X Semester I karangan Supiyanto diterbitkan tahun 2007 oleh penerbit Phibeta Aneka Gama, dan (3) Fisika untuk SMA/MA Kelas X karangan Kamajaya diterbitkan tahun 2012 oleh penerbit Grafindo Media Pratama. Berdasarkan analisis data yang telah dilakukan, pada buku ajar Intan Pariwara mengalami miskonsepsi pada aspek penjelasan konsep dengan persentase 20%, penulisan rumus dengan persentase 66,67%, penulisan simbol dengan persentase 40%, dan penyajian gambar dengan persentase 20%. Buku ajar Phibeta Aneka Gama mengalami miskonsepsi pada aspek penjelasan konsep dengan persentase 10%, penulisan rumus dengan persentase 22,22%, penulisan simbol dengan persentase 10%, dan penyajian gambar dengan persentase 20%. Buku ajar Grafindo Media Pratama mengalami miskonsepsi pada aspek penjelasan konsep dengan persentase 20%, penulisan rumus dengan persentase 44,44%, penulisan simbol dengan persentase 10%, dan tidak mengalami miskonsepsi pada aspek penyajian gambar. Pada aspek penulisan satuan, tidak terdapat miskonsepsi pada buku ajar Intan Pariwara, Phibeta Aneka Gama, dan Grafindo Media Pratama. Dari kesimpulan hasil penelitian yang dilakukan, memberikan informasi kepada seluruh guru khususnya pada bidang studi fisika kelas X untuk lebih berhati-hati dalam memilih buku yang digunakan dalam proses pembelajaran di kelas. Penelitian ini sebaiknya dapat dijadikan masukkan bagi penerbit dan dinas pendidikan untuk pembaruan isi dari bahan ajar pada buku tersebut.
Kliwonan dalam Perspektif Historis Dan Sosial Budaya Masyarakat Batang
Authors: Hermawan Ambar
Published: October 2017

Kliwonan is a cultural ritual, tradition for society Stem held every Friday Kliwon per selapanan (35 days) is housed in the square and the great mosque of Rods with an intent expression of gratitude and commemorate the services of its ancestors in the open Trunk of land and fight for Islam in the region stems. This research aims to know the historicity, the value and meaning of Kliwonan in the socio-cultural community perspective on the stem. This research used the qualitative approach, with data collected through methods of observation, interviews, documents and question form to get a response to the tradition of Kliwonan according to the public perception of the stem. Data analysis with qualitative descriptive analysis techniques. The results showed the public response of the stem against the ritual tradition of Kliwonan is strong enough, 70% of respondents indicate an attitude very agree with kliwonan event that became the hallmark of Batang. Results of interviews with many people indicate a different response. Among the theologian Kliwonan respond that Stem merely a tradition, the myths that are circulating in the community indeed deliberately created. Among the artists thus holds the stem of bermetamorfasa already kliwonan rituals-Mystic pragmatical event transformed into economic reality means that kliwonan is a purely pragmatic interests pageant reality.
THE BOTTOM SUBSTRATE SHALLOW WATER MAPPING USING THE QUICK BIRD SATELLITE IMAGERY
Authors: Siregar Vincentius
Published: October 2017

The objective of this study was to explore the capability of high resolution satellite data of QuicBird to map the characteristics of the bottom shallow water (habitat) using the transformation method of two bands (blue and green) by implementing "depth invariant index" algorithm i.e., Y = ln Band 1 - (ki/kj) ln Band 2. The result provide more detail information on the characteristic of the bottom shallow water comparing to the used of original band (RGB). The classification of the transformed image showed 6 classes of bottom substrats i.e., Live coral, Death, Coral, Sand mix coral, Sand mix algae, and
Macro algae with Sand. The accuracy test of the map derived from the classification was about 79%.

Keywords: bottom shallow water, Quick Bird image, depth invariant index, classification