bluuebunny/crossref_metadata_2025 huggingface dataset:
Nonlinear Accumulating Priority Queues with Equivalent Linear Proxies
Authors: Li Na , Stanford David A. , Taylor Peter , Ziedins Ilze
Published: July 2017

In 1964, Kleinrock proposed a queueing discipline for a single-server queue in which customers from different classes accumulate priority as linear functions of their waiting time. At the instant that a server becomes free, it selects the waiting customer with the highest accumulated priority, provided that the queue is nonempty. He developed a recursion for calculating the expected waiting time for each class. In 2014, Stanford, Taylor, and Ziedins reconsidered this queue, which they termed the accumulating priority queue (APQ), and derived the waiting time distribution for each class. Kleinrock and Finkelstein in 1967 also studied an accumulating priority system in which customers’ priorities increase as a power-law function of their waiting time. They established that it is possible to associate a particular linear APQ with such a power-law APQ, so that the expected waiting times of customers from all classes are preserved. In this paper, we extend their analysis to characterise the class of nonlinear APQs for which an equivalent linear APQ can be found, in the sense that, for identical sample paths of the arrival and service processes, the ordering of all customers is identical at all times in both the linear and nonlinear systems.
Local knowledge of the Baduy Community of South Banten (Indonesia) on the traditional landscapes
Authors: ISKANDAR JOHAN , ISKANDAR BUDIAWATI S.
Published: July 2017

Iskandar J, Iskandar BS. 2017. Local knowledge of the Baduy Community of South Banten (Indonesia) on the traditional landscapes. Biodiversitas 18: 928-938. The Baduy people are a distinctive group of 11,620 people representing 3,395 households who live in an area of 5.136,58 hectares in the mountainous region of South Banten, Java. Traditional Baduy land cultivated by Baduy alone is described as tanah Baduy (Baduy land). This paper discusses the local knowledge of the Baduy community on the traditional landscapes. A qualitative method was used in this study. The result of the study shows that based on the Baduy categories, the Baduy landscape can be divided into four types, mainly forest, swiddens, gardens, and settlements. These landscape types have been traditionally managed based on the Traditional Ecological Knowledge (TEK) and beliefs. As a result, the Baduy people have continuously been able to practice traditional swidden cultivation, despite population growth and the depletion of the forest around them.
Assessment of the successfulness of mangrove plantation program through the use of open source software and freely available satellite
Authors: NURSAMSI ILYAS , KOMALA WULAN RATNA
Published: July 2017

Nursamsi I, Komala WR.2017. Assessment of the successfulness of mangrove plantation program through the use of open source software and freely available satellite images. Nusantara Bioscience 9: 251-259. Mangrove forest has a major role in the process of human-environment interaction, but almost every mangrove forest in the world is under threat. In Indonesia alone, 25% of South East Asiaâ€™s mangroves are at a risk. The continued decline in mangrove forest induced by anthropogenic activity has made all the stakeholders who have the concern at the mangrove forest preservation worried, including the government. There were several programs have been performed by the government to preserve the mangrove forest. One of the programs was â€œMangrove Rehabilitation Program in three districts: Ciamis, Indramayu, and Subangâ€ held by Forestry Department of West Java Province in 2007. The aims of this study were to assess the changes in mangrove forest area before the program performed and to evaluate the successfulness of the program, using the increasing of mangrove forest area as a parameter. This study was conducted only in Subang and Indramayu Districts of West Java, Indonesia. The assessment was conducted using Landsat 4-5 TM, Landsat 7 ETM+, and Landsat 8 OLI acquired in 1996, 2006, and 2016 respectively. For each image, a supervised classification method was performed using open source GRASS GIS software. The resulting maps were then compared to quantify the changes. Field work activity conducted and confirmed the changes that occurred in the study areas. Our study shows that all of the two districts exhibit successfulness of the plantation program. Ground truth survey confirmed that the successfulness of the plantation program is due to the participation of communities in the area of study. This study also shows that by using open source software and freely available satellite images, the fast, robust, and reliable data as an initial step to monitor both short-term and long-term plantation program can be collected effectively and inexpensively.
Irakasleak eta familiak etxerako lanetan: TIPSen estrategia
Authors: Esnaola Balerdi Garazi , Amiama Ibarguren José Francisco , Amiama Ibarguren José Francisco
Published: July 2017

Este trabajo responde a una necesidad de profesorado y familias de una escuela rural sobre los deberes escolares. Quieren que sean acordes con el planteamiento metodológico de la escuela y que mejoren las relaciones familia-escuela. Para ello se ha recurrido a la propuesta de Epstein sobre deberes escolares interactivos (TIPS). Estas tareas dan la oportunidad de compartir con los miembros de la familia aspectos interesantes de lo trabajado y aprendido en la escuela. El objetivo de esta propuesta de investigación-acción, ha sido el de crear y revisar 3 tareas TIPS para el segundo y tercer ciclo (alumnado de 9 a 12 años) contando con el apoyo de una investigadora externa. La información cualitativa (observación y entrevista en la escuela) se ha recogido a través de las dos tutoras mientras que la cuantitativa (cuestionario en casa) ha sido aportada por las 24 familias implicadas. Teniendo en cuenta la diversidad familiar, los resultados señalan mayores grados de satisfacción en los tres colectivos: disponibilidad de información relevante para los tutores, percepción en la relación familia-escuela, interacción con los hijos y motivación del alumnado con este tipo de deberes escolares.
Letterer-Siwe’s Disease
Authors: Nasar Sri S. , Sujoko E. M. Dadi
Published: July 2017

The present report concerns a case of Letterer-Siwe's disease which satisfies the clinical and pathological findings of acute non-lipid reticuloendotheliosis. This is the third case reported in our clinic, the former two were reported by Kho et al. (1961) and Iskandar et al. (1966). Two other cases from other clinics were reported by Tangosaputra and Himawan (1970).
Congenital Defect in the Musculature of the Stomach with Spontaneous Rupture in a Newborn Infant
Authors: Zet Zaimi , Darmawan Sadikin , Kartono Darmawan
Published: July 2017

In this communication a case ofspontaneous gastric perforation dueto congenital defect in the gastricmusculature, proven by histologicalexamination, will be reported.
Cerebrospinal Fluid Otorrhea after Head Injury
Authors: Hassan Rusepno , Ongkie A. S. , Hendardji Hentyanto , Rifki Nusirwan
Published: July 2017

This report presents a case of CSF otorrhea after head injury in a boy commencing after myringotomy. We believe it to be the first documented one in the Indonesian literature.
Treatment of Cholera El Tor with Bactrim
Authors: Komalarini S. , Iswandari J.
Published: July 2017

Between November 1971 and May 1974, there were 41 children, comprising 26 boys and 15 girls, suffering from cholera El Tor gastroenteritis treated with parenteral Bactrim during the first 24 hours followed by Bactrim orally for 4 consecutive days. Rectal swabs on admission showed positive V. cholera biotype El- Tor cultures in all cases; 9 children had additional pathogenic E. coli in the stools. Besides Bactrim, treatment consisted of intravenous administration of lactated Ringer’s solution, dextrose 5% or saline. All the patients showed quick improvement of the clinical condition. Good result was found in 34 children (82.9%), fair in 6 (14.6%), and failure in 1 case (2.4%). All the children in this study survived. No drug intolerance or side effect was observed.
Intraperitoneal Fluid Therapy in Children
Authors: Noerasid Harden , Soeparto Pitono , Rudyanto Bing , Sugijanto Sugeng , Hamid Abdul , Saraswati A.
Published: July 2017

The administration of intraperitoneal fluid to 56 children, with gastroenteritis and dehydration, admitted to the Department of Child Health Dr. Soetomo Hospital, was discussed. The authors especially considered the practical aspects and the danger arising from the administration of intraperitoneal fluids. Although none of the patients died, some did show restlessness, meteorism, a raised leucocyte-count and a small rise in body temperature. The authors are of the opinion that the administration of intraperitoneal fluids is not free of danger and it should be reserved for emergency situation only.
Duplication of the Urinary Tract Occurring in One Family
Authors: Alatas Husein , Indiarto Soemarso , Alwi Usman
Published: July 2017

Duplication of the urinary tract occurring in one family is reported. The penetration of this anomaly among them was not equal. The father had a bifid ureter on the right side. Among his children, one had right bifid pelvis and the other two bilateral double kidney. The smallest child had a  non-functioning right upper kidney associated with an ureterocele causing trouble in micturition and recurrent infection. After surgical correction the symptoms disappeared.
Factors Affecting Low Birth Weight Incidence at Cipto Mangunkusumo Hospital, Jakarta
Authors: Boedjang Rachma F. , Rohsiswatmo Rinawati , Sularyo Titi S , Sastroasmoro Sudigdo
Published: July 2017

A case-control study was conducted during the period of April-July 1997 to determine factors affecting the incidence of low birth weight infants born at Cipto Mangunkusumo Hospital, Jakarta. Of the 300 singleton infants (150 LBW and 150 non-LBW) studied, five risk factors were determined: (1) maternal education (p = 0,027), (2) maternal weight gain during pregnancy (p < 0,001), (3) interval between regnancy intervals (p = 0,041), (4) history of previous LBW (p = 0,004), and (5) maternal health condition during pregnancy (p < 0,0001). The mean anthropometric measurements of male non-LBW were significantly greater than female non-LBW infants.
Meconium Aspiration Treated with Extra-Corporeal Membrane Oxygenation
Authors: Mustafa Iqbal , Rohimi Syarif , Soemanto Soemanto , Sjamsudin Embing , Hartoyo Hartoyo , Samudro Heru , Rachmat Jusuf , Wirastari Budining , Halimun Edi M. , Zuswahyudha Zuswahyudha , Rahayoe Anna Ulfah
Published: July 2017

We report the first Indonesian baby delivered by cesarean section and developed into metabolic acidosis, severe respiratory failure due to meconium aspiration accompanied by right pneumothorax. The case was successfully managed with extracorporeal membrane oxygenation (ECMO).
A Novel Method for the Synthesis of Core-shell Magnetic Nanoparticle
Authors: Mukherji D.
Published: July 2017

Core-shell type magnetic nanoparticles are finding attractive applications in biomedicine, from diagnostic to cancer therapy. Both for targeted drug delivery and hyperthermia, as well as a contrast agent used for external biomedical imaging systems, small (< 20 nm) superparamagnetic nanoparticles are desired. Some iron oxide nanoparticle formulations are already approved for human administration as contrast agent for magnetic resonance imaging. However, search continues for nanoparticles with higher saturation magnetisation. Metallic, bi-metallic and intermetallic magnetic nanoparticles are finding attention. Biocompatibility and optimal clearance are important criteria for the medical applications and therefore core-shell type particles are favored, where a biocompatible shell (e.g. polymer, Silica) can prevent inadvertent host reaction with the magnetic core. A recently developed novel synthesis method (electrochemical selective phase dissolution - ESPD), which can produce core-shell magnetic nanoparticles, is reviewed in this paper. ESPD, as the name suggests, uses electro-chemical separation of a phase from metallic alloys to synthesize nanoparticles. It is a versatile method and can be adopted to produce a wide range of nanostructures in addition to the core-shell magnetic nanoparticles.
Tráfico Autosimilar. Algoritmo algebráico para asignación dinámica del búffer
Authors: Bravo Jack , Marrone Luis
Published: July 2017

Los modelos de tráfico realísticos son un requerimiento fundamental para comprender el diseño del hardware y software de red en campos como en el comportamiento de las colas, manejo de la congestión y ancho de los buffers. Se ha determinado que muchas trazas de tráfico en el mundo real son estadísticamente consistentes con modelos de tráfico autosimilares. Esto impone nuevos requerimientos en lo que a diseño de switch se refiere, especialmente en lo que respecta a las estrategias de bufferiado. En este trabajo se propone un modelo de asignación dinámica del espacio de buffer para condiciones de tráfico autosimilar y lo comparamos en términos de probabilidad de bloqueo, mediante simulación, con la política de Umbral dinámico proporcional y Umbral Estático. El Umbral de Control Dinámico propuesto ha demostrado ser más robusto para las condiciones cambiantes del tráfico autosimilar que las otras dos.
Control críticos (APPCC) en las industrias agrarias
Authors: Astudillo Sergio
Published: July 2017

El sistema de análisis de peligros y puntos de control críticos (APPCC) es un método reconocido y aceptado ¡ntemacionalmente para garantizar la seguridad de los alimentos. El sistema supone un planteamiento científico, racional y sistematizo para la identificación, la valoración y el control de los peligros de tipo microbiológico, bacteriológico, químico y físico, y para garantizar que los alimentos durante el proceso productivo sean seguros en el momento de su consumo.
Management of traumatic liver injuries, Mafraq hospital experience, UAE
Authors: Alkatary Mohammed M. , Miller Jody R. , Turekeyev Bakhyt , Al Ayoubi Fawzi
Published: July 2017

Background: The purpose of this retrospective study is to evaluate our institutional practice on the management of traumatic liver injuries and evaluate the main causes of failure of non-operative management (NOM).Methods: This is a retrospective study done in Mafraq Hospital, Abu Dhabi, UAE, during the period between January 2014 and January 2016. The patients were reviewed with regards of the grade of liver injuries, blood transfusion, imaging done, surgical intensive care unit (SICU) admission and serial vital signs and hemoglobin level. Also, we included the patient who required emergency laparotomy and damage control surgery. Focused assessment by ultrasound for trauma (FAST) was done in all liver trauma patients upon arrival to ED along with arterial blood gases, chest and pelvic X-rays. Computed tomography (CT) scans with angiography was done in all responder and stable patients. In transient responder patient CT was done on the window period of responding to resuscitation. Non-responder patients were taken immediately for exploration laparotomy, which include either control of bleeding or perihepatic packing.Results: This study included 75 patients admitted to our facility with different grades of liver injuries. 36 (48%) patients were admitted with grade I, II liver injuries which represent most of our admissions. 27 (36%) patients were admitted with grade III, 10 (13.33%) patients with grade IV while the least number was with grade V (2 patient, 2.66%). Non-operative management (NOM) or conservative treatment was successful in 34 patients admitted with grade I, II liver injuries whereas other 2 patients were explored for associated mesenteric and splenic injuries. On the patients admitted wit grade III liver injuries NOM was successful on 22 patients. The results of management of grade IV injuries showed that NOM was successful on 5 patients while the patients with grade V were managed operatively due to instability.Conclusions: Management of traumatic liver injuries is a multidisciplinary team work requiring trauma surgeon, interventional radiology, intensive care unit beside facility for trauma CT and massive blood transfusion. Management of traumatic liver injuries is depending on hemodynamic status of the patient and not the grade of injury.
Sinérgico alternativo para inseticidas inibidores de acetilcolinesterase
Authors: Fazolin Murilo , VIDAL ESTRELA JOELMA LIMA , MONTEIRO Medeiros ANDRÉ FÁBIO , DA SILVA IRIANA MARIA , GOMES LUIARA PAIVA
Published: July 2017

A importância da utilização de sinergistas está relacionada à minimização da quantidade de inseticida químico necessária para o controle de insetos, podendo contribuir com a diminuição da contaminação ambiental e preservação de insetos benéficos. Assim, objetivou-se com este trabalho avaliar o efeito sinérgico e da homogeneidade de resposta de lagartas de Spodoptera frugiperda (J. E. Smith, 1797) às doses subletais do óleo essencial de Piper aduncum L. (OEPA) em combinações com formulações de organofosforados e carbamato, comparadas àquelas com butóxido de piperonila (PBO). Foram obtidos fatores de sinergismo (FS) para comparação dos tratamentos entre si. Por contato residual, evidenciou-se significativa potencialização dos inseticidas Profenofós (FS= 5,4 – 7,7), Fenitrotiona (FS= 3,9 – 29,2) e Clorpirifós (FS= 3,4 – 7,8). Já por contato tópico ocorreu significativa potencialização dos inseticidas: Profenofós + ¼ da DL50 do OEPA (FS= 5,4), Fenitrotiona + ¼ da DL50 do OEPA (FS= 33,8) e Clorpirofós + 1/2 da DL50 do OEPA (FS= 2,5). O metomil não foi sinergizado pelo OEPA nas duas vias de contaminação e não apresentou aumento da pressão de seleção para resistência na população avaliada de lagartas de S. frugiperda. Não foi possível concluir sobre a homogeneidade de resposta e consequentemente da pressão de seleção com relação aos inseticidas organofosforados para S. frugiperda. Os resultados indicam que o óleo essencial de Piper aduncum apresenta potencial como sinergista para Fenitrotiona, Profenofós e Clorpirifós, podendo ser uma alternativa ao butóxido de piperonila.
Cifras cruentas. Las víctimas mortales de la violencia sociopolítica en la Segunda República (1931-1936)
Authors: Ortiz Heras Manuel
Published: July 2017

Reseña de la obra mencionada.
El lazo azul en el País Vasco: una aproximación desde la historia oral veinte años después
The Lazo Azul (blue ribbon) in the Basque Country: an approach from oral history twenty years after
Authors: Moreno Bibiloni Irene
Published: July 2017

El siguiente trabajo tiene como objetivo fundamental realizar un acercamiento a las campañas del lazo azul que se dieron en los años noventa en el País Vasco propiciadas por la Coordinadora Gesto por la Paz de Euskal Herria, en tanto que iniciativa social novedosa ante la violencia terrorista en el País Vasco. Partimos de la hipótesis de la importancia de los movimientos sociales, en este caso el pacifista, para comprender la historia reciente del País Vasco y la evolución de la actitud frente a ETA. La clave para este acercamiento ha sido el estudio de los sentimientos y las emociones como elemento a tener en cuenta en el comportamiento colectivo, más allá de los aspectos racionales que han venido destacando las teorías clásicas de la movilización social. Propongo para este análisis una metodología basada en la historia oral, para tratar de centrar la atención en lo que la emoción genera en relación a la acción colectiva y la movilización ciudadana. Así pues, a las fuenteshemerográficas y documentales se han sumado las orales, a través del análisis de entrevistas semiestructuradas a integrantes de Gesto por la Paz, para reconstruir y comprender qué suponía significarse públicamente contra la violencia política.PALABRAS CLAVE: País Vasco, movilizaciones pacifistas, Gesto por la Paz, historia oral, lazo azul.ABSTRACTThe following study seeks to carry out an examination of the so-called lazo azul (blue ribbon) campaigns during the 1990s in the Basque Country, promoted by the Coordinadora Gesto por la Paz de Euskal Herria. The key to this approach is the study of the feelings and emotions as the primary element to consider in collective behaviour, going beyond the rational aspects which have been highlighted by the classical theories concerning social mobilizations. In order to develop the analysisI use a methodology based on oral history to try to focus on what emotion generates in relation to collective action and citizen mobilizations. Apart from documentary and newspapers sources, oral ones have been added through the analysis of semi-structured interviews of members of Gesto por la Paz, so that what it meant to declare oneself in public against political violence and what was felt when participating in these mobilizations can be rebuilt and understood.KEY WORDS: Basque Country, peace demonstrations, Gesto por la Paz, oral history, blue ribbon.
La Guerra de Churchill. La historia ignorada de la Segunda Guerra Mundial
Authors: Cayuela Fernández José Gregorio
Published: July 2017

Reseña de la obra mencionada.
Zeolites for Fine Chemical Production State of Art and Perspectives
Authors: Clerici Mario G.
Published: July 2017

The paper analyses the role of catalysis and that of renewable resources in the frame of a sustainable development. The possible uses of natural feedstocks for chemical production and the application of catalytic
methods to their transformations are reviewed, with emphasis on carbohydrates and vegetable oils and on zeolite catalysts, respectively. The problems arising from the embedment of active sites on the catalyst
surface are discussed, with the aid of specific examples taken from oxidation and acid catalysed reactions.
Some chemical and physical characteristics of farmed pheasant hens (Phasianus cholchicus) breast meat
Authors: Fernye Csaba , Erdélyi Márta , Ancsin Zsolt , Bócsai Andrea , Mézes Miklós
Published: July 2017

Ring necked pheasant is the most significant game bird in Hungary. Around 300.000 pheasant harvested (hunted) annually and generally these birds are consumed by the hunters. As there are limited data on the quality of pheasant meat, in the present study we aimed to analyze some physical and chemical properties of it. At 20 weeks of age 63 pheasant hens were exterminated by cervical dislocation and meat, liver, spleen and heart samples were taken. The live weight of the birds was 1045±92g (870 to 1300g). The average weight of the liver, spleen and heart was 14.12±2.58, 0.47±0.13 and 4.30±0.49, respectively. The average drip loss was 5.90±2.38% (0.68±0.28g). As was expected the average protein content (26.2±0.7%) of the pheasant breasts was markedly higher than in broiler or turkey. The average fat content (0.4±0.2%) was similar to that in turkey. The unique chemical and physical properties of the pheasant meat make it suitable to fit in the human nutrition.
Mortalidade materna no Brasil e nos munic�pios de Belo Horizonte e Uberaba, 1996 a 2012
Authors: Biano Roberta Kiara Costa , Souza Patr�cia Cristine Barbosa de , Ferreira Maria Beatriz Guimar�es , Silva Sueli Riul da , Ruiz Mariana Torreglosa
Published: July 2017

Objetivos: conhecer o perfil de mortalidade materna no munic�pio de Uberaba entre 1996 e 2012 e comparar com dados nacionais e de Belo Horizonte. M�todo: estudo de abordagem quantitativa, realizado a partir de dados secund�rios do Departamento de Inform�tica do Sistema �nico de Sa�de. Os dados foram submetidos � an�lise univariada. Resultados: a maioria das mulheres era solteira e possu�a baixa escolaridade. No Brasil, foram registrados 28.713 �bitos, 26 em Uberaba, com predom�nio de mortes obst�tricas diretas, tendo como causa agravamento de doen�as preexistentes, s�ndromes hipertensivas e hemorragias, perfil encontrado em Uberaba e Belo Horizonte, enquanto no Brasil os �bitos foram decorrentes das s�ndromes hipertensivas. Conclus�o: o estudo refletiu um padr�o insuficiente de assist�ncia e necessidade de pol�ticas p�blicas educacionais para ado��o de uma pr�tica baseada em evid�ncias, capacitando os profissionais a realizar diagn�stico e interven��es precoces que garantam uma assist�ncia segura e de qualidade.
A arte como experiência
Authors: Duarte Miguel Mesquita
Published: July 2017

[Resenha de: DEWEY, John. Art as Experience. New York: A Perigee Book, 1980.]
O Trickster de Huarochiri
Authors: Medeiros Sérgio
Published: July 2017

O Manuscrito de Huarochiri oferece um resumo da tradição religiosa andina nativa e uma imagem do mundo sobre-humano e humano como foi ideado por volta de 1600. Vislumbra-se nele um retrato de deus como um trickster (ao mesmo tempo criador e destruidor).
Experiência urbana e romance de formação na contemporaneidade: um estudo analítico de Fiel, de Jessé Andarilho
Authors: Salgado Marcus Rogério
Published: July 2017

Fiel é um híbrido contemporâneo de romance social com romance de formação, no qual são apresentadas paisagens sociais e ritos de passagem característicos da vida urbana. O objetivo do presente artigo é entender as relações entre forma estética e experiência urbana no âmbito dos processos sociais encenados em uma obra importante da chamada Literatura Periférica.
A influência da crônica na prática da leitura de jornais: Plínio Marcos, Jornal da Orla, 1999
Authors: Moura Sérgio , Miranda Mozarth
Published: July 2017

O presente artigo faz um breve contexto sobre a crônica e a sua potencialidade na conquista de novos leitores. O estilo aceito pelos jornais é um espaço livre para abordagem de diferentes temas. É o local de reflexão e respiro longe dos fatos diários. O cronista Plínio Marcos fugia do cotidiano e utilizava nos seus textos personagens reais e fictícios, histórias que ele muitas vezes busca na infância e na juventude. Outro ponto abordado neste trabalho são as características presentes na produção feita pra o Jornal da Orla, entre os meses de janeiro e outubro de 1999, de outros gêneros literários como conto, coluna e artigo.
Avaliação da erosão hídrica em estradas rurais: Um estudo de caso na comunidade rural da Placa, Alegre/ES, Brasil
Authors: Ferrari Leonardo Lã , Ferrari Stéphanie Lã , Santos Alexandre Rosa dos , Ferrari Jéferson Luiz
Published: July 2017

Objetivou-se estimar a perda de terra por erosão hídrica que ocorre num trecho da estrada rural do município de Alegre/ES, Brasil. A estimativa foi realizada com base no volume de terra acumulado por quatro estruturas do tipo “bacias de retenção” de formato semicircular, dispostas em série (7 em 7 m) e instaladas à margem da estrada. Os resultados indicam que a estrada rural apresenta processo de erosão avançada. Os volumes de terra de 0,0310 m³, 0,0122 m³, 0,0068 m³ e 0,0065 m³, retidos nas estruturas ao final de seis meses de observação, reforçam a necessidade de práticas conservacionistas no local.
Ethnomathematics and the pursuit of peace and social justice
Authors: D'Ambrosio Ubiratan
Published: July 2017

Atualmente, as questões que afetam a sociedade hoje em dia como a segurança nacional, a segurança pessoal, a economia, as perturbações sociais e ambientais, as relações entre as nações, as relações entre as classes sociais, o bem-estar das pessoas, a preservação dos recursos naturais e culturais e muitos outros podem ser sintetizados como Paz em suas várias dimensões: Paz Interior, Paz Social, Paz Ambiental e Paz Militar. Essas quatro dimensões estão intimamente relacionadas. A Justiça Social conduz naturalmente à Paz Social. Embora, como eu disse, as quatro dimensões da Paz estejam intimamente relacionadas, neste ensaio vou focar a minha reflexão sobre a Justiça Social e como a etnomatemática como um programa pode contribuir para isso.
Conversations, controversy, and calculations in an unpublished chilam balam of Yucatan
Authors: Tun Molly
Published: July 2017

Neste artigo, eu exploro os benefícios e os perigos do contato intercultural no contexto da criação e da difusão dos livros Chilam Balam, que são textos sagrados que foram compilados, principalmente, durante o período colonial e utilizados por comunidades maias de Yucatan. Apresento os resultados de meu trabalho de campo nessa área que inclui a narrativa do desaparecimento e da re-criação de um Chilam Balam inédito, bem como uma reprodução parcial de seu conteúdo, incluindo um capítulo sobre os Números Maias e uma coleção de hieróglifos maias. Essa reprodução do manuscrito original inédito de Chilam Balam é uma contribuição única para o campo dos estudos maias e evidencia a episteme maia com relação aos números, ao tempo e ao universo.
Using SOWISO to realize interactive mathematical documents for learning, practising, and assessing mathematics
Authors: Heck André
Published: July 2017

Successes of computer aided learning in mathematics education have led to high expectations of teachers and learners. A teacher would like to be able to review what students actually do when learning online, how much progress they make, which difficulties arise during learning, and to which subjects attention must be paid in the next lessons. Learners expect that they can consult their instructional materials anywhere, anytime and device-independent, and that they receive immediate and intelligent feedback on their work. At the Faculty of Science of the University of Amsterdam we realize the envisioned interactivity and support in SOWISO. This is a cloud-based environment in which a course has the look-and-feel of an interactive module: texts, randomised examples and randomised exercises with automated feedback are integrated, and online formative and summative assessments are fully supported. We describe and evaluate a SOWISO-based course in basics mathematics for first-year psychobiology students, in which formative assessment and learning through worked examples are key elements of the instructional design.
Research and Application of a New Polycrystalline-Diamond-Compact Bit With Suction-Type Minicore Drills
Authors: Kuang Yuchun , Luo Jinwu , Wang Fang , Yang Yingxin , Li Shu , Zhang Liang
Published: July 2017

The powdery or laminar cuttings that are produced by a conventional polycrystalline-diamond-compact (PDC) bit are not suitable for geological logging. To solve this problem, this paper introduces a new PDC bit with suction-type minicore drills. The basic working principle of this new PDC bit is to remove the main cutters in the center of the PDC bit. The new PDC bit can generate minicores of formations with a certain diameter and break these cores in a timely manner during drilling. By use of a special hydraulic design, the broken minicores are sucked from the bottom of the well through the internal coring channel of the bit.

Combined with the theory of rock-breaking simulation and solid/liquid two-phase flow, the effects of different jet-nozzle diameters (6, 8, and 10 mm) on the suction in the coring channel were investigated by considering the quality of the minicores, cuttings, and drilling fluid. The numerical-simulation data show that the cores, cuttings, and drilling fluid that are discharged from the discharge hole have the highest quality if a jet nozzle with a diameter of 8 mm is used. In other words, the suction force generated from the negative-pressure cavity is stronger than that generated with the other two jet-nozzle sizes (6 and 10 mm) investigated.

A test bit was subjected to laboratory and field tests to verify the coring. The experimental results show that the collected cores are generally columnar, and both the integrity and the collection rate of the core are high.

This study demonstrates the feasibility of the concept of the new PDC bit with suction-type minicore drills and provides a design scheme to reduce the coring cost and improve the quality of geological logging.
Producción y calidad del forraje de tres variedades de yuca bajo tres densidades de siembra
Authors: Gómez Willian Rafael , Cardona Ayala Carlos Enrique , Rivero Sandra
Published: July 2017

Una limitante de la ganadería, de la región Caribe colombiana es la disminución de la producción y calidad del forraje en épocas de sequía o de lluvias. El objetivo del estudio fue evaluar la producción y calidad del forraje de tres variedades de yuca (SM 2546-40, SM 1511-6 y SM 2081-34) bajo tres densidades de siembra (40.000, 55.000 y 70.000 plantas ha-1 ) y tres edades de cosecha (75, 90 y 105 días). El experimento se realizó en el Centro de Investigación Turipaná-Corpoica, en 2011, bajo un diseño de parcelas subdivididas, con tres repeticiones. Se evaluaron las producciones de forraje verde (PFV), materia seca (PMS), proteína bruta (PPB), contenido de proteína bruta (CPB), fibra detergente neutro (FDN), fibra detergente acida (FDA) y cenizas. En el periodo húmedo (mayo-agosto), la PFV y PMS fue 150% más alta que en el seco (enero-abril) y, la de proteína 100% mayor. La variedad de yuca SM 2081-34 produjo mayores PFV y PMS, y menor contenido de FDA. En las tres densidades de siembra las PFV y PMS fueron similares, pero con 55.000 y 70.000 plantas/ha, la PPB fue más alta. A los 105 días, se obtuvieron mayores PFV, PMS y PPB; mientras que, a los 75 días, el forraje presentó menores contenidos de FDN y FDA, y mayor contenido de proteína (CPB). A los 105 días, el contenido de cenizas fue más alto. La variedad SM 2081-34 produjo más materia seca y proteína a los 105 días con 55.000 plantas ha-1 . Palabras clave: Yuca forrajera, materia seca, proteína bruta, fibra detergente ácida.
Вплив препарату BNO 1030 на про-/антиоксидантний статус крові при експериментальному цукровому діабеті 1-го типу
Authors: Gavrylenko Yu.V. , Layko А.А. , Kuchmirovska T.M. , Gudzyk M.M.
Published: July 2017

Актуальність. Серед механізмів, що призводять до розвитку і погіршення перебігу цукрового діабету (ЦД) 1-го типу і його ускладнень, значна роль належить інтенсифікації окисного стресу. В розвитку багатьох пізніх ускладнень ЦД, зокрема мікро- і макроангіопатій, нефропатії та інших, одним із основних патогенетичних механізмів є окислювальний стрес. Мета: оцінити вплив фітопрепарату BNO 1030 на про-/антиоксидантний статус крові при експериментальному ЦД 1-го типу. Матеріали і методи. Дослідження були проведені на інтактних щурах-самцях лінії Wistar, у яких моделювали експериментальний ЦД 1-го типу. Продукцію активних форм кисню (АФК) в лейкоцитах крові вимірювали, використовуючи 2’,7’-ди­хлорфлуоресцеїн діацетат. Вміст живих, апоптотичних і некротичних лейкоцитів визначали, використовуючи анексин V, кон’югований з GFP (green fluorescent protein) і РІ (Propidium iodidi). Результати. На тлі зниження маси тіла і підвищення концентрації глюкози в крові діабетичних тварин встановлено посилене утворення активних форм кисню порівняно з контрольною групою тварин, що свідчить про інтенсифікацію окисного стресу. У цих умовах знижувалася активність супероксиддисмутази (СОД), що свідчить про порушення регуляції між про- і антиоксидантними процесами. Висновки. Введення препарату BNO 1030 тваринам при експериментальному ЦД 1-го типу призводило до незначної інтенсифікації вироблення АФК як в контрольній, так і в діабетичній групі, проте його прийом підвищував життєздатність імунних клітин, запобігаючи їх загибелі. Застосування препаратуBNO 1030 сприяло підвищенню активності СОД на 10 % порівняно з групою діабетичних тварин.
DISAIN SISTEM KONTROL MESIN AUTO WASHER FEEDER BERBASIS KENDALI PLC UNTUK PERAKITAN BVC (BASE VALVE COMPLETE) PADA PEMBUATAN SHOCK ABSORBER
Authors: Ardi Syahril , Wibowo Bayu
Published: July 2017

Line sub assembly merupakan line di mana komponen bagian dalam dari shock absorber dirakit. Salah satu proses pada line sub assembly adalah proses perakitan Base Valve Complete (BVC). BVC merupakan salah satu komponen penting pada shock absorber yang berfungsi mengatur sirkulasi fluida pada saat shock absorber mengalami kompresi. BVC untuk model shock absorber ini terdiri dari guide, non-return spring, non-return valve, base valve case, leaf valve, shim, dan valve stopper. Leaf valve merupakan plat tipis berbentuk lingkaran dengan ketebalan 0.1-0.2 mm. Permasalahan pada proses perakitan BVC adalah operator kesulitan dalam memisahkan leaf valve sesuai dengan jumlah yang ditentukan. Kesalahan jumlah leaf valve yang dirakit akan menyebabkan BVC menjadi reject. Solusi dari permasalahan tersebut adalah dengan dibuat mesin auto washer feeder. Mesin ini berfungsi untuk mengeluarkan leaf valve sesuai dengan jumlah yang ditentukan. Kontrol pada mesin auto washer feeder terdiri dari perangkat input, perangkat proses, dan perangkat output. Perangkat input terdiri dari push button, selector switch, toogle switch, emergency switch, photoelectric sensor, proximity sensor, reed switch. Perangkat proses menggunakan PLC Omron CJ1M-CPU11. Perangkat output yang digunakan adalah lampu indikator, silinder pneumatik, dan cool muscle ac servo motor. Hasil yang diperoleh dari pembuatan mesin ini adalah operator menjadi lebih mudah dalam melakukan perakitan leaf valve, berkurangnya waktu perakitan leaf valve dari 81 detik menjadi 50.6 detik, dan berkurangnya jumlah BVC yang reject dari 8 pcs per minggu menjadi 0 pcs per minggu.
IMPLEMENTASI SINGLE MINUTE EXCHANGE OF DIES (SMED) UNTUK OPTIMASI WAKTU CHANGEOVER MODEL PADA PRODUKSI PANEL TELEKOMUNIKASI
Authors: Mulyana Ahmad , Hasibuan Sawarni
Published: July 2017

Sebagai salah satu perusahaan pembuat panel telekomunikasi dan panel elektrik, PT. Cometal dihadapkan pada tantangan waktu delivery yang kompetitif.  Permasalahannya perusahaan masih mengalami keterlambatan pengiriman produk ke konsumen akibat lamanya waktu changeover model yang menyebabkan downtime mesin punching pada proses produksi panel telekomunikasi. Untuk mengurangi lead time maka perlu diupayakan minimasi waste pada changeover model di mesin punching.  Tujuan penelitian ini adalah mengidentifikasi faktor penyebab tingginya waktu changeover model pada mesin punching dan melakukan improvement dengan metode SMED (single minute exchange of dies).  Penerapan metode SMED dilakukan dengan mengotimalkan aktifitas eksternal pada produksi panel telekomunikasi melalui koordinasi kegiatan Pengamatan dilakukan selama 30 hari menggunakan studi waktu sebelum dan sesudah implementasi SMED.  Penerapan konsep SMED dilakukan dengan  mengubah 15 aktifitas internal menjadi 5 aktifitas internal dan merekayasa alat bantu gauge tool untuk mengurangi downtime mesin.  Improvement yang diperoleh adalah berkurangnya waktu downtime mesin punching dari 44,90 jam menjadi 10,96 jam atau terjadi penurunan waktu setup sebesar 75, 59 persen.
Diseño curricular de un programa de Artes Visuales en modalidad virtual
Authors: Martínez Espinosa Raúl Alejandro , Barbosa Ortiz Sonia Alexandra
Published: July 2017

El texto aborda nociones involucradas en los procesos de enseñanza  - aprendizaje de las artes visuales a partir de una propuesta de diseño curricular en la modalidad virtual. Éste desarrolla aspectos de la relación entre los seres humanos y las artes visuales, para sustentar la necesidad de formar artistas que comprenden su entorno cultural y que provoquen transformaciones en él a partir de la creatividad y la expresión. A continuación se dedica al desarrollo del programa y las conexiones existentes entre el entorno, la técnica, la teoría, la creatividad, la sensibilidad y la obra, que contribuyen a la formación de artistas visuales autónomos comprometidos con su práctica y el entorno en el que viven.

 
Los ambientes virtuales de aprendizaje: un camino para la educación superior de las personas con alguna necesidad especial de aprendizaje
Authors: Ochoa Guevara Nancy Edith
Published: July 2017

La alta simulación computacional ha permitido crear ambientes virtuales para que un individuo pueda interactuar en ellos y sentir la realidad como si ocurriera en un entorno verdadero. Este artículo pretende reflexionar sobre la realidad latente de la situación en la formación académica de Educación Superior de la población con alguna necesidad especial de aprendizaje (ciegos, sordos, baja visión, poca audición, pérdida de movilidad física, limitaciones cognitivas, síndrome de Down, autismo, baja estatura y muchas otras formas de discapacidad), que está participando en ambientes virtuales (instructores, estudiantes). Así mismo se analiza el diseño, estructura, esquema y aspectos éticos que debería tener un campus virtual de aprendizaje accesible para esta población en particular. Finalmente, con los aportes de algunos resultados de investigaciones en el tema de los ambientes virtuales, se analizará qué aspectos del diseño del ambiente virtual se deben tener presentes para atender a la población con alguna discapacidad intelectual o física.
Reflexión sobre la metodología de investigación en el proyecto: argumentación intercultural
Authors: Amador Lesmes Beatriz H.
Published: July 2017

En este artículo se presenta una reflexión sobre la metodología utilizada en el proyecto de investigación Argumentación intercultural a través del uso del software Dígalo, que se desarrolló en el Colegio Sagrado Corazón de Jesús en Cumaribo (Vichada) en el año 2010. Para esta reflexión se propone la necesidad de replantear las metodologías de la investigación, las técnicas de recolección de información y las estrategias didácticas tradicionales en contextos de bilingüismo e interculturalidad, e introducir metodologías que permitan la construcción de sentido con las comunidades mismas. De este modo, se analizan percepciones sobre los modos de interacción y comunicación de los miembros de la comunidad educativa, se presentan sus características comunicacionales e interculturales en un contexto bilingüe y se plantean elementos teóricos que sustentan las posibilidades de una argumentación intercultural a partir de la relación entre interculturalidad, bilingüismo y la generación de espacios para la argumentación, la discusión, la negociación y el debate. Con lo anterior, se identifica en qué medida a través del uso del software mencionado se puede desarrollar la argumentación intercultural y los efectos de las brechas digitales en la generación del aprendizaje a través de las Tecnologías de la Información y la Comunicación, TIC.
Si se puede construir desde la escuela una mejor sociedad
Authors: Benitez Elsi Janeth
Published: July 2017

¿Cómo transformar el aula de clase en ambientes del entorno y construir una mejor sociedad desde aquel lugar? ¿Cómo transformar este espacio para lograr un alto grado de motivación y liderazgo en los niños, potenciar el desarrollo de sus dimensiones y entrelazar el currículo con la realidad?

Se ha podido constatar que los niños en la actualidad muestran un alto índice de violencia en la resolución de sus problemas, una falta de pertenencia hacia el entorno y la naturaleza, baja autoestima, poca disposición para llevar a cabo actividades que necesiten esfuerzo y una rebeldía temprana que se refleja en los distintos ambientes. Por tal motivo, es importante crear espacios que les permitan expresarse y potenciar en cada uno aquellas aptitudes y actitudes. Así, estarán en capacidad de transformar y trascender dentro de una comunidad
Elaboración del mapa del conocimiento de la investigación en la escuela de ciencias básicas tecnología e ingeniería-ECBTI y plan de acción
Authors: Riaño Luna Campo Elías
Published: July 2017

Este trabajo tiene como propósito identificar, y evaluar los activos componentes del capital intelectual de la Escuela de Ciencias Básicas, Tecnología e Ingeniería (ECBTI) de la Universidad Nacional Abierta y a Distancia, tomando como referente las líneas de investigación y el marco de la sociedad del conocimiento. Para el efecto se siguió un método descriptivo dentro de la tradición cualitativa. Identificándose trece grupos y sendas redes de investigación; trece publicaciones disciplinares y seis publicaciones atinentes al modelo académico y pedagógico de la UNAD, de los cuáles diez, de estos diecinueve documentos, han sido editados en revistas indexadas en categoría C y uno en categoría A2. Documentos que acreditan siete líneas activas de investigación disciplinar y una genérica en los diez programas de la escuela en comento. Con esta información se elaboró un mapa de conocimiento (http://mapainvestigacion.jimdo.com/), el cual permitió concluir que la investigación desarrollada hasta mayo de 2010 está alineada con lo recomendado por el Ministerio de Educación Nacional (MEN), en cuanto a las áreas de conocimiento, las líneas de investigación en ejecución y la producción avalada por pares. Igualmente se concluye que los mapas de conocimiento son una herramienta de apoyo para la gestión del conocimiento y el direccionamiento curricular y profesional de los programas académicos cuando de alta acreditación académica se trata.
Accounting Crimes: The Case of the Neapolitan Public Banks (17th–18th Centuries)
Authors: Avallone Paola
Published: July 2017

This paper examines new research on crimes and punishments in Neapolitan public banks between the 17th and the early 18th centuries. This is a new area of study, based on the archives of the banks, that can explain the failures of these institutions, the lack of controls, and the damages the fraudulent actions caused. The appropriation of the “public good” (money deposited in the banks) was carried out by bank employees whose illicit behavior violated the set of norms common to all Christianity, norms that constituted a solid foundation for the patrimony of trust at the heart of all commercial transactions in the ancien régime. Archival records are used to examine the possible motivations that led to the circumvention of the norms, including lack of economic gratification, a scarcely efficient internal control system, a judicial system that did not apply strict punishments, and marketplace economic factors.
CAPACITANCE EVALUATION ON PARALLEL-PLATE CAPACITORS BY MEANS OF FINITE ELEMENT ANALYSIS
Authors: S. Catalan-Izquierdo  , Jose-M. Bueno-Barrachina  , César-S. Cañas-Peñuelas  , Francisco Cavallé-Sesé
Published: July 2017

The electric field distribution produced by any disposition of insulating and conducting materials is a key aspect in electrical design, but exact values can only be obtained in simple geometries. In this work, using commercially available F.E.M. software we show the influence of the edge-effect on the electric field distribution of a two parallel-plane conducting plates system surrounded by an insulating medium taking into account the thickness of the conducting plates. We compare our results with previous published works. Finally, we obtain the relationship between capacitance and insulation characteristics, insulation gap, plate dimensions and plate thickness.
Eucalyptus globulus waste as fuel in a power plant
Authors: S. Pérez  , C. J. Renedo  , A. Ortiz  , M. Mañana  , C. Tejedor  , N. Sanke  , F. Delgado
Published: July 2017

This paper analyzes the energy potential which waste from the forestry eucalyptus globulus in Cantabria, with particular reference to their potential for direct combustion in power plants. This has made a software in which introducing the values for the various parameters that affect combustion, provides results in flame temperature and electrical performance.
Design and operation of a local cogeneration plant supplying a multi-family house (9,5 kW electrical / 35 kW thermic power) – a field report
Authors: Thomas Schuster
Published: July 2017

In the paper at hand a small cogeneration plant that is suitable to supply heat and electric power to a three family house is presented. The plant is capable of delivering 9.5 kW electrical power to the mains and 30 kW thermal power used for heating the domestic hot water and the building respectively. Woodchips, a renewable energy carrier, are used to power the plant, so it is CO2 neutral. Powering an internal combustion engine with wood gas made from woodchips has turned out to be the right technology for small cogeneration plants. Such units are not available from stock; hence a prototype has been constructed. More than two years of operation experience with this prototype show the practicability of the system. The amount of maintenance work is acceptable and will be reduced in the future by optimization. Measurements concerning the electrical as well as the thermal efficiency are presented. During these measurements further room for improvement has been discovered to maximise output power and to lower losses. In summary it figured out that the plant operates reliable with acceptable amount of maintenance work. And, if we don’t calculate the amount of development work for the prototype, it is profitable.