bluuebunny/crossref_metadata_2025 huggingface dataset:
A review of Mukta : An Ancient drug in Rasa Shastra
Authors: Thakre Roshan , Barve Mayur , Khedekar Sanjay , Sawant Pandit
Published: May 2017

Rasa Shastra or preferably called as the ancient Indian Alchemy, deals with the preparation of medicines that has helped mankind since thousands of years. Rasa which means Mercury has been the chief area of interest for the Ancient Alchemists of Rasa Shastra. Along with safe use of Mercurial preparations as medicines since many years, Rasa Shastra also deals with preparation of other herbo-mineral compounds using varied drugs of plant as well as animal origin. One of the drug, that has been used widely in Rasa Shastra is Mukta or Pearl. There are several categories or groups of drugs (Varga) used in Rasa Shastra viz. Maharasas, Uparasas etc. whereas Mukta is classified under Ratna (precious gems) Varga. Mukta is a shining off white coloured hard spherical object found in sea shells. Due to its lucrative appearance it is widely used in jewelry, cosmetics, as well as in clothing. It is formed by deposition of several concentric layers of calcium carbonate and conchiolin around central nucleus. According to Rasa Shastra classics, Mukta has Madhura, Sheeta and Laghu properties. And so is widely used as a potent Pitta Shamaka. Its purification and Pishti processes are also mentioned in Rasa Shastra classics which makes pearl more potent to cure diseases. Mukta is also widely used in conditions like Amlapitta, Jwara, Daha etc.
Repetitive Strain Injuries (RSI) - An Ayurvedic Approach
Authors: Naiker Ashok
Published: May 2017

Repetitive strain injury, a new term of the last years, is used for a broad class of injury to the musculoskeletal and nervous system, which affects people’s ability to work and live normally without pain. This occupational disease is not well known because it takes the form of disorders named after the part of body affected such as arms, hands, neck and shoulder attributed to perform a repetitive task such as typing, clicking a mouse, writing/computer in the work place that require long periods if repetitive motions in a fixed posture. Neck (Cervical spondylitis), arm, hands (tennis elbow, carpel tunnel syndrome, back strain, bursitis etc). The common factor is that RSI may cause by overuse or strain of certain tissues of the muscles and tendon. Number of treatment principle mentioned and practiced in allied sciences like self care system consisting of personal food therapy, herbal remedies, Panchakarma and medication techniques, medicated oils and psychological guidance from Ayurvedic system of medicines.
Concept of Yapan Basti and importance of Rajyapan Basti in Ayurvedic Chikitsa
Authors: Agrawal Mahendra , Dive Mukund , Gupta Madhusudan
Published: May 2017

Panchakarma therapy is one of the vital branch of Ayurveda, which deals mainly with purification of the provoked Doshas (physiological/pathological) from the body. These Doshas (toxins and waste material) should be purified from the body. Basti is vital Panchakarma, Yapana Basti promotes the longivity of life. Basti is effective treatment in Avaran Avastha. Rajayapana Basti having Sadhya Balajanana (increase strength), Brimhana (nourishment to Dhatu), Rasayana (rejuvenation) properties and can be used for all the causes of vitiation of Vata viz. Dhatukshaya (decrease in various tissues) and Avarana.
A Critical study on Twak as a Matruja Bhava
Authors: N Krishnamurthy , U. Govindraju
Published: May 2017

Twak is a Matruja Bhava. Organs derived from the maternal source in the embryo are nothing but the organs formed from the Shonita (Artava) of the mother. X chromosome of both the ovum and sperm can be considered as a part of Artava as a female child retains her two X chromosomes from her mother and father’s mother (grandmother) and a male child retains his X chromosome from his mother. Mutations in the genes of X chromosome lead to abnormalities in skin, which explains the possibility of Twak as a Matruja Bhava.
A Review on Pishti Kalpana
Authors: Khairnar Bhupendra , Barve Mayur , Khedekar Sanjay , Sawant Pandit
Published: May 2017

Rasa Shastra deals with the preparation of variety of medicaments and formulations that include Bhasmas, Kharaliya Rasayanas, Kupipakwa Rasayanas, etc. These sections of formulations also depend upon the different types of raw materials that are to be used in it as chief ingredients. Rasa Shastra has a vast and varied history of preparing these medicines and its safer use since thousands of years. Pishti is one such section of formulations that is chiefly used when the raw materials cannot tolerate heat but at the same time are very effective without heat treatment. In Rasa Shastra, mainly the drugs of animal origin or precious gems are subjected to levigation or trituration in a particular media to form a particular Pishti. The word Pishti literally means that which is finely triturated and made into a very fine powder similar to flour. Mukta Pishti, Prawal Pishti being some of the important examples.
A Review of Obesity and its management in Ayurveda
Authors: Gupta Vikas , Sodhi Danisha , Mittal Rakesh
Published: May 2017

Ayurveda is originated from the Atharvaveda and was preached by Lord Brahma. Its Prayojana is to maintain the health of healthy and to cure the diseases of diseased. In Ayurveda, Sthaulya has been described in all the literatures. Acharya Charaka has described Sthaulya Purusha mong one of the Ashta Nindita Purusha. Sthaulya is caused due to Medovriddhi which includes abnormal and excessive accumulation of Medodhatu in the body. This is caused by frequent and excessive intake of Madhur and Snigdhaahara, lack of physical and mental exercises. These all results into the increase in Kapha Dosha and Medo Dhatu results in the Sthaulya. In modern science, Sthaulya can be compared to the obesity. Obesity is one of the metabolic disorder. WHO considers obesity as a Global epidemic and a public health problem. It is estimated that more than 300 million adults are obese and many are overweight. Sthaulya (obesity) is discouraged by the society for social as well as on the medical grounds. Three main causes have been described in modern literature viz. Dietetic, Genetic and Hormonal. Person of every age and sex is suffering by this widely spreaded epidemic i.e. obesity. It is the major chronic disease in developing as well as in developed countries. The line of treatment includes the treatment of Dhatvagnimandya. In pathogenesis of Sthaulya, Kledaka Kapha, Samana and Vyana Vayu, Meda (fat /lipid) and Medodhatvagni Mandyata are main responsible factors. So the proper treatment should be selected, that can effect on all these factors .
An Ayurvedic approch to Knee Ligament Injury - A case study
Authors: Ruparel Sweety J. , Jani Jaykrishna , Ramani Hetal , Sharmaz Akanksha
Published: May 2017

Knee joint is heavily stressed joint in the body. It has two completely incompatible properties of stability and mobility. It heavily depends on quadriceps femoris and collateral ligaments for stability. Due to increasing number of accidents and sports injuries, knee ligament injuries are also increasing in number, which more commonly occurs in anterior cruciate ligament (ACL), medial collateral ligament (MCL) and meniscus. However, surgical reconstruction does not guarantee a previous level of activity. In this single case study an effort is made to manage knee ligament injury through Ayurveda. A 38 years old female suffering from anterior cruciate ligament tear and complex tear in body and posterior horn of medial meniscus was treated with Janu basti and internal medicine. The duration of the treatment was 30 days, which provided relief from pain with noticeable improvement in the movement of knee joint.
Scrotal Lipoma - A Case Study
Authors: Naregal Manjunath  S. , K Prashanth , R. Ramachandra  K.
Published: May 2017

Lipoma is one of the commonest benign mesenchymal tumor. It occurs with an incidence of 1% of the population. It is composed of fat cells of adult type. It may occur any where in the body, hence called Universal tumor or ubiquitous tumor. But lipomas with in the scrotum are rare and are included under para testicular or extra testicular tumors. To date, definite etiology of lipoma remains uncertain. One theory suggests cytokine release may trigger pre-adipocyte differentiation and maturation. Here we report a case of scrotal lipoma presented as a painless swelling in the scrotum.
Role of Rhizome Powder of Turmeric in the management of Madhumeha w.s.r. to Diabetes Mellitus - A Case Study
Authors: Vasavda Krup , L Hegde Prakash , A. Harini
Published: May 2017

Diabetes mellitus is a group of metabolic disorders characterized by chronic hyperglycemia associated with disturbances of carbohydrates, fat, protein metabolism due to absolute or relative deficiency in insulin secretion, that metabolic disorder is considered as the Madhumeha in Ayurveda based on their symptoms. It is one of the types of Vataja Prameha. It results from various etiological factors. Here objective was to evaluate the efficacy of Ayurveda treatment in management of Madhumeha. A 35years old male came to SDM College of Ayurveda Hospital Kayachikitsa special OPD with complaint of Prabhoothamutra, Karapada Daha, Avila Mutrata and Kshudaathi Pravrthi. Examination, investigations and history leads to diabetes mellitus. So patient was treated with Haridra Choorna, Pathya, Apathya and Yogasananas. Ayurveda treatment has effective results in the management of Madhumeha by single drug administration orally.
Multiple Fistula-In-Ano treated by Kshara Sutra - A Case Report
Authors: Yadav Rajesh , Barve Mayur , Ramchandra K. R.
Published: May 2017

Fistula-in-ano is a chronic and troublesome disease encountered in general practice. It consists of 1.6% of all surgical admissions and leads to physical, psychological and social problems. The management includes various treatment modalities with variable outcomes. Ksharasutra is a medicated thread used in ano-rectal disorders particularly for the management of fistula-in-ano in Ayurveda. In this study Ksharasutra was prepared by Apamarga Kshara (Ash of Achyranthus aspera Linn.), Snuhi Ksheera (Euphorbia neriifolia Linn.) and turmeric powder (Curcuma longa Linn.). A patient with multiple fistula-in-ano was treated by application of Ksharasutra. This case study demonstrates the utility of Ksharasutra in Multiple Fistula-in ano.
Cuantificación voltamétrica de carbofurano en papa (Solanum tuberosum L., Solanaceae)
Authors: Lara Sandoval Adriana Elizabeth
Published: May 2017

El exceso en la aplicación de plaguicidas puede
generar acumulaciones en los tubérculos de papa
que sobrepasen el límite máximo residual (LMR)
presentado por el Codex Alimentarius, lo cual
representa riesgos para la salud de los consumidores.
La cuantificación de plaguicidas es un proceso
costoso y de difícil acceso para los cultivadores y
entes de salud y de vigilancia. En este artículo se
presenta una metodología sencilla, económica y
asequible para la cuantificación de carbofurano en
tubérculos. El método de voltametría diferencial
de pulso (DPV) para carbofurano fue validado para
su cuantificación en papa. El estudio fue realizado
usando como electrolito de soporte la solución buffer
Britton-Robinson, un electrodo de trabajo de carbón
vítreo, Ag/AgCl como electrodo de referencia y
platino como electrodo auxiliar. El insecticida
en papa fue extraído por reparto sólido-líquido y
los resultados obtenidos fueron contrastados por
espectroscopía UV-Vis, lo cual permitió deducir que el
método voltamétrico genera resultados satisfactorios,
precisos y confiables para la cuantificación de carbofurano
en muestras de este tubérculo. Estos resultados
son una evidencia del uso de carbofurano en el
municipio de Ventaquemada (Boyacá). Este método
de detección de carbofurano puede utilizarse como
una herramienta para monitorear el uso de estos
compuestos químicos en la papa.
Diagnóstico molecular de Phytophthora cinnamomi asociado a la pudrición radicular en zonas productoras de aguacate en Ecuador
Authors: Toapanta Gallegos Diana Elizabeth
Published: May 2017

Phytophthora cinnamomi Rands está asociado
con la pudrición radicular, una de las enfermedades
más importantes en el cultivo de aguacate
(Persea americana Mill.) debido a que ocasiona
marchitez progresiva hasta provocar la muerte del
árbol. El objetivo de este estudio fue identificar
molecularmente la presencia de P. cinnamomi con
la técnica PCR-RFLP, en plantaciones de aguacate
en dos zonas productoras del Ecuador. Con este
fin, se obtuvieron muestras de raíces de árboles con
sintomatología de pudrición radicular en las zonas
Palabras clave: aislamiento, Ecuador, Persea americana, Phytophthora cinnamomi
de producción. A partir de estas se obtuvieron diez
aislamientos donde se identificó morfológicamente
a Phytophthora sp. Para la distinción de especies
de Phytophthora se realizó un análisis molecular
con marcadores en la región ITS de ADN ribosomal
(ADNr). La digestión del fragmento ITS obtenido
por PCR con la enzima TaqI permitió confirmar la
presencia de P. cinnamomi en los aislamientos y,
por lo tanto, asociar su presencia con la pudrición
radicular en las zonas de producción muestreadas.
Reacción de genotipos de lulo (Solanum quitoense Lam.) a Meloidogyne spp. en condiciones de campo
Authors: Salazar González Claudia
Published: May 2017

En Colombia, los nematodos del nudo radical
Meloidogyne spp. son considerados como uno de los
principales inconvenientes en la producción de
lulo, por los daños que ocasionan en las raíces y
la pérdida de producción asociada. El objetivo de
este estudio fue evaluar en condiciones de campo la
reacción de 16 genotipos de lulo (Solanum quitoense
Lam., Solanaceae), variedad Castilla y la especie
S. hirtum Vahl (seleccionados previamente en un
experimento en invernadero y categorizados como
resistentes y mode-radamente resistentes) al ataque de
Meloidogyne sp. Además, se incluyeron dos testigos:
uno químico (nematicida) y uno absoluto (que correspondió
al genotipo con mayor susceptibilidad en
invernadero).
El ensayo se estableció en un lote naturalmente
infestado por el nematodo, en un diseño de bloques
completos al azar con tres repeticiones y nueve
plantas por cada unidad experimental. Las variables
de respuesta fueron incidencia, severidad y rendimiento.
La incidencia fue superior al 80 % en todos
los casos, pero la severidad varió debido a su condición
genética. BR03 y BR01 fueron los genotipos con
índices de severidad más bajos, con valores de 1,0
y 0,8 respectivamente. El análisis de varianza de
rendimiento mostró diferencias significativas y
evidenció que los genotipos SQBR01 y SQLF04
alcanzaron los valores más altos con 4,77 y 4,74 t/ha
en tres pases de cosecha.
Evaluación de sustancias antimicrobianas naturales en la conservación de avena sinuana
Authors: Pastrana Puche Yenis Ibeth
Published: May 2017

El objetivo de globalizar el consumo de los alimentos
autóctonos es contribuir al aumento de la exportación y
a la propagación de las diferentes culturas alimentarias.
En el mercado mundial, no obstante, la competencia es
fuerte y se requiere que los productos sean diferentes
con el fin de no perecer. Actualmente, la sociedad
demanda productos naturales con menos aditivos
químicos, de modo que los productores de alimentos
se han visto en la necesidad de evitar al máximo el uso
de antimicrobianos químicos y de adoptar alternativas
naturales para el mantenimiento o extensión de la vida
útil de sus productos. El propósito de esta investigación
Palabras clave: avenas, Cinnamomum verum, Córdoba (Colombia), preservación de alimentos, procesamiento de
alimentos, Syzygium aromaticum
fue evaluar el tiempo de vida útil de la avena sinuana,
una bebida autóctona del departamento de Córdoba
(Colombia), adicionada con clavo (Syzygium aromaticum)
y canela (Cinnamomum verum) en tres concentraciones
diferentes (0,073, 0,146 y 0,219 % v/v), envasada
en frascos de plástico (PET) y de vidrio de 500 mL,
almacenados a 4 °C durante 15 días. A los datos se
les aplicó un análisis de varianza y prueba de
comparación de Tukey (p≤0,05), utilizando el paquete
estadístico SAS. La avena con la concentración más
alta de especias (0,219 % v/v) logró un mayor tiempo
de almacenamiento.
Entre Babilonia y París. El azar domesticado de Borges a Cortázar
Authors: Hernández Escobar María Cristina
Published: May 2017

En Borges, la vida entera se organiza alrededor de una pasión colectiva: el riesgo. Además del tema del azar y el destino, se introduce un tercero: el caos en la sociedad o la construcción de un nuevo cosmos recombinando las ruinas del anterior. Sorteo sobre sorteo se va estructurando un sistema totalitario donde no queda espacio para el libre albedrío, en un entramado cerrado e infinito. En Cortázar, el azar y el libre albedrío se entrecruzan trazando los ejes sobre los que correrán las reglas de un juego −esta vez individual y sin fines pecuniarios—, persiguiendo una ruptura “con las cadenas estúpidas de la causalidad cotidiana”. Todo inicia en el subterráneo del metro de París.
El equilibrio del diálogo: Los siete locos y Los lanzallamas de Roberto Arlt
Authors: Chávez Jiménez Daniar
Published: May 2017

El siguiente estudio realiza un recorrido a través de dos de las obras del autor argentino Roberto Arlt, Los siete locos y Los lanzallamas; el artículo intenta llamar la atención sobre las múltiples influencias filosóficas e ideológicas que la literatura arltiana ha obtenido de los ambientes intelectuales europeos del siglo XIX y principios del XX, y que a través de diferentes lecturas y ciertos procesos culturales y sociales actuales al autor, llegan al imaginario narrativo de estos textos. Con base en la propuesta analítica de Arthur Herman, en su obra La idea de decadencia en la historia de Occidente, se establece un diálogo entre el texto y su contexto.
Vecindad y conflicto: una perspectiva de las relaciones entre Colombia y Ecuador
Authors: Ostos Cetina María Del Pilar
Published: May 2017

Este artículo analiza el desarrollo de las relaciones entre Colombia y Ecuador desde una perspectiva del espacio, la frontera y el conflicto armado. Para lo cual se recurren a elementos históricos, pero también se hace mención a la formación de las primeras organizaciones armadas y sus repercusiones en el ámbito del desarrollo del Estado colombiano y de su relación con los países vecinos; lo que ha dado lugar en Colombia a la formación de un modelo de fragmentación territorial heredado de la época precolombina y virreinal, que durante los siglos XX y XXI se ha transformado en un tipo de conflicto armado o de guerra civil, como consecuencia de una disputa por el control político del territorio colombiano y de sus recursos naturales.
La Revolución cubana a 50 años de su triunfo. ¿Dónde está y hacia dónde va?
Authors: Domínguez Guadarrama Ricardo
Published: May 2017

A partir de que Fidel Castro dejó sus funciones en el gobierno, los dirigentes al frente de la administración debieron agilizar el proceso de transformación de la Revolución cubana, y con ello poner a prueba las enseñanzas de la gesta liberadora frente a la escasez, la apatía política y social, la corrupción, el despilfarro, la disidencia interna y externa, la presión internacional, el bloqueo económico y los efectos de la crisis financiera internacional.
La integración económica y la competitividad en el sector eléctrico: análisis de casos en América Latina
Authors: Brown del Rivero Alfonso , Bacaria Colom Jordi
Published: May 2017

Se analiza la relación entre los procesos de reforma y liberalización eléctrica emprendidos a partir de los años ochenta, y su conexión con diferentes modelos de integración latinoamericana. Se contrasta la configuración de los mercados y las experiencias de reforma en Argentina, Chile y México con la de España. La conclusión es que los procesos de reforma y liberalización están íntimamente correlacionados con la integración económica, y para que ésta sea más profunda se requiere la existencia de instituciones supranacionales que dicten políticas de competencia y libre circulación de capitales, al mismo tiempo que vigilen su cumplimiento.
Praxis liberacionista de Enrique Dussel: la concepción del indio
Authors: Saladino García Alberto
Published: May 2017

Enrique Dussel es uno de los forjadores de la filosofía de la liberación cuya impronta estriba en desplegar una crítica radical de carácter anticapitalista. Toda vez que en su amplia y rica obra existen diversas referencias al indio americano, me pareció pertinente sistematizar sus reflexiones al respecto. Lo corroboran dos de sus obras: su tesis doctoral en la década de los años sesenta y otro texto de los años noventa, que apareció con dos títulos diferentes. En sus planteamientos se bordan tópicos para construir la explicación de la génesis del problema del indio latinoamericano, su ubicación como colonizado y las posibilidades acerca de la necesaria superación de esa situación.
La legitimación de la Ciencia social en las bases de datos científicas más importantes para América Latina
Authors: Morales Gaitán Katia Andrea
Published: May 2017

Se analizan desde la Sociología de la ciencia tres ejes de su campo. El primero, rescata la epistemología de la producción científica social. El segundo, trata la construcción de la legitimidad de los científicos a través de sus publicaciones. El tercero, refiere el estudio de los indicadores más importantes para América Latina generados por la Cienciometría. Se concluye que la incorporación de las Tecnologías de Información y Comunicación son canales a través de los cuales se legitiman los resultados de investigación, productividad y visibilidad entre las comunidades científicas.
El fin del gobierno militar estadounidense en Cuba, 1901-1902. La opinion de la prensa mexicana oficialista
Authors: Rodríguez Díaz María Del Rosario
Published: May 2017

Se analizan y reconstruyen las representaciones y opiniones del periódico oficialista El Imparcial ante el fin del gobierno militar estadounidense en Cuba y la candidatura del Tomás Estrada Palma, primer presidente de la república. Otro de los ejes de este trabajo es demostrar que las elecciones presidenciales de 1901-1902 fueron un elemento importante en la formación y generación de actitudes alrededor del actuar de Washington en el entorno geopolítico inmediato del México porfirista.
Acción exterior y propaganda. Las visitas de líderes latinoamericanos a Franco
Authors: Eiroa San Francisco Matilde
Published: May 2017

En este artículo se aborda el análisis de uno de los instrumentos de acción exterior del franquismo desde 1939 hasta 1975, concretamente las visitas de dirigentes latinoamericanos concebidas como grandes operaciones políticas, propagandísticas y de relaciones públicas. De todas las que se produjeron, hemos seleccionado tres casos de gran relevancia y repercusión política y mediática: el de Eva Perón, Rafael Leónidas Trujillo y Alfredo Stroessner.
La influencia pedagógica del exilio republicano español: la edad de oro de la enseñanza en Colombia
Authors: Hernández García José Ángel
Published: May 2017

La llegada de exiliados españoles a Colombia como consecuencia de la Guerra Civil española (1936-1939) supuso un florecer del mundo educativo colombiano, hasta ese momento apático y anticuado. El que entre los exiliados hubiera una cantidad considerable de docentes y pedagogos explicaría esta “Edad de oro” de la educación en Colombia. La apuesta decidida de las instituciones del Estado por las nuevas técnicas pedagógicas que representaban los pedagogos españoles fue fundamental para el despegue de la educación en Colombia en los años treinta, cuarenta y cincuenta, abandonando viejas prácticas educativas. Este artículo intenta explicar el devenir de estos exiliados desde el punto de vista laboral y vital, así como de las instituciones en que compartieron sus conocimientos pedagógicos en Colombia.
Una revisión del caudillo a dos voces. Notas sobre reescritura e intertextualidad en el teatro de David Peña y David Viñas
Authors: Sosa Carlos Hernán
Published: May 2017

Este trabajo analiza la recuperación que dos obras teatrales realizan de una misma situación histórica relevante de la historia argentina: el levantamiento militar (1828) por el que se fusiló al caudillo Manuel Dorrego. Ambos textos: el Dorrego de David Peña  (1909) y el Dorrego de David Viñas (1974), presentan vínculos intertextuales mediante los cuales han revisado algunos temas decisivos para la cultura política argentina (el caudillismo, el populismo, la participación del ejército en la política). Por otra parte, al reinterpretarse cada pieza en su contexto, se recuperan alusiones veladas a la realidad contemporánea que los textos cuestionaban indirectamente apelando a la relectura histórica.
Del sueño americano a la utopía desmoronada: cuatro novelas sobre la inmigración de México a Estados Unidos
Authors: Mora Ordonez Edith
Published: May 2017

El fenómeno de la inmigración hacia Estados Unidos constituye uno de los tópicos de la narrativa latinoamericana contemporánea. El espacio de las cuatro novelas de frontera, que estudiamos en este artículo desde el enfoque de los estudios culturales y de la pragmática de la comunicación literaria, dialoga con el contexto social extraliterario del viaje migratorio de los mexicanos. A través del discurso literario interpretamos el imaginario sobre la utopía prefigurada en el sueño americano, cuya cristalización es una investigación del mito: el encuentro desafortunado con otro círculo periférico donde se repite la rutina de la que partieron
Entre la militarización y la democracia: la historia en el presente de Guatemala
Authors: Romano Silvina María
Published: May 2017

Con el derrocamiento de Arbenz (1954) se fue consolidando el proceso de militarización de la política como alternativa frente a sectores en permanente reivindicación de sus derechos y como respuesta a un movimiento contrarrevolucionario heterogéneo y carente de legitimidad. Esto contribuyó a profundizar un orden económico y político excluyente (asentado en el modelo primario-exportador), atravesado por la violencia diaria perpetrada desde el estado. La cúpula de las Fuerzas Armadas, como parte de la clase dominante, adquirió un papel protagónico en la transición de gobiernos militarizados a gobiernos democráticos. La inconsistencia del poder civil frente al militar debilitó la democracia y los logros de los Acuerdos de Paz. La asunción de Otto Pérez Molina como presidente (ex militar vinculado a los crímenes perpetrados en los ochenta) invita a reflexionar sobre las continuidades y los cambios en la relación entre las Fuerzas Armadas y el poder civil, la estructura económica y los límites de la democracia.
Comparación de ortesis para el tratamiento de la artrosis de la base del pulgar
Authors: Tuljak A
Published: May 2017

El tratamiento de la osteoartritis (OA) tiene como primer objetivo reducir el dolor y mejorar la función de la articulación afectada. La primera indicación para el tratamiento conservador de la rizartrosis es la inmovilización. La intención de inmovilizar es proveer soporte a la articulación carpometacarpiana (CMC) del pulgar mientras se permiten movimientos funcionales de la mano. Hay una variedad de ortesis para el pulgar disponibles, tanto prefabricadas como hechas a medida, y en diferentes tipos de material. Lamentablemente no hay lineamientos específicos del tipo de ortesis adecuada para la OA de la articulación CMC. El abordaje del Terapista Ocupacional incluye la consideración de la utilización de ortesis. Además el Terapista Ocupacional confecciona ortesis termoconformadas hechas a medida.
Relación entre sensibilización alérgica por pruebas cutáneas y grados clínicos de rinitis
Authors: Sosa Aguirre A , Berardi I , Lozano N , Ianiero L , Saran R , Concari E , Alegre G , Lozano A
Published: May 2017

La rinitis alérgica (RA) es una enfermedad inflamatoria de la mucosa nasal mediada por IgE. Existen controversias en los diferentes estudios acerca de la relación entre la gravedad de los síntomas de RA y la magnitud de la sensibilización medidas por pruebas cutáneas con alergenos.
Concentration of cane-sugar syrup in a pilot scale climbing film evaporator
Authors: Ahmad Muhammad , Shah Mansoor , Muhammad Khan , Kamran Muhammad , Ahmad Afzal , Irfan Muhammad , Durrani Ali
Published: May 2017

A climbing film evaporator is similar to a vertical tube heat exchanger, where a hot fluid, such as steam is introduced in shell side and a cold fluid such as sugar syrup is fed in tube side. In this work, variation of the overall heat transfer coefficient due to changes in process variables was investigated experimentally for concentration of cane-sugar syrup in a pilot scale climbing film evaporator. A full two-level factorial experiment was performed and significant factors were determined using Analysis of Variance. The factors investigated in this work were feed flow rate, re-circulation ratio, steam pressure, and feed temperature. The selected process response was the overall heat transfer coefficient for the climbing film evaporator. Feed flow rate and steam pressure were found to have a significant influence on the overall heat transfer coefficient.
Antibiotic resistance in bacteria isolated from fish in Serbia
Authors: Aksentijevic Ksenija , Asanin Jelena , Nisavic Jakov , Markovic Maja , Milanov Dubravka , Misic Dusan
Published: May 2017

Introduction. Bacteria isolated from skin, gills, and fish intestines from
aquaculture ponds, ornamental fish stores/aquariums and live fish markets
were investigated. Materials and Methods. Disk diffusion and E-test were used
for susceptibility testing to carbapenems, ureidopenicillins with or without
?-lactamase inhibitor, 3rd and 4th generation cephalosporins,
aminoglycosides, colistin, fluoroquinolones, and chloramphenicol. PCR was
used to detect resistance genes in the bacterial isolates. Results and
Conclusions. Among the total number of bacteria tested, regardless of the
genus and species, 56.7% of isolates were found to be sensitive to all
antibiotics, 23.1% of isolates were resistant to one or two antibiotics, and
20.2% of isolates were resistant to three and up to 16 antibiotics. In A.
hydrophila isolated from a guppy (Poecilia reticulata) sampled in an
ornamental fish store aquarium, 16S rRNA methyltransferase was confirmed by
finding the rmtB gene. Pseudomonas isolates showing phenotypic resistance to
carbapenems, ureidopenicillins with or without ?-lactamase inhibitor and 3rd
and 4th generation cephalosporins were tested and found negative for
different resistance genes by PCR (M?L, ESBL, KPC, OXA-23, OXA-24, OXA-40,
OXA-58, VIM, IMP, SPM, GIM, NDM, TEM, SHV, CTX-M-1, CTX-M-9, OXA-1, OXA-9 and
the AmpC group, as well as single genes, MOXM, CITM, ACCM, EBCM, FOXM, DHAM).
Based on E-test results, three Pseudomonas isolates from common carp
(Cyprinus carpio) were found to be resistant to colistin with MIC values of 4
?g/mL.
Input Current Distortion and Output Voltage Regulation of the Boost PFC Converter Operating with Different Control Method
Authors: António P. Martins  , António M. Cardoso
Published: May 2017

There are many possible topologies for implementing power factor correction converters. Due to its advantages, the average current control method is one of the most widely used. The critical conduction mode control method is also very used and is employed here for comparison purposes. The main issues to be analyzed in the paper are the input current wave shape and the output voltage regulation. Simulation and experimental results are presented and discussed.
Flicker Emission Analysis of a Wind Farm
Authors: Diego Sebastián Giacosa Berriel  , Gabriela Bonessi Menoni  , Tomás Di Lavello Mussi  , Diego Nieves Martín
Published: May 2017

In this paper is presented the criteria used by UTE, with respect to the Flicker emission of power plants; considering that this is one of the quality parameters monitored at the connection node. This work is focused in the flicker emission phenomenon. It sets out the criteria used to determine the emission limits for individual users connected to the distribution network. Additionally it presents a theoretical method, based on international standards, to estimate the total emission of flicker that will produce a wind farm in the connection node. The aim of this paper is to compare the theoretical emission flicker, with the field measurements in the connection node of a power generator. Here are calculated individual emission limits and the theoretical estimation of the flicker emission from a wind farm of 10MW connected to a network of 31.5kV. Finally, these values are compared with Pst and Plt parameters, short-term flicker disturbance factor and long-term flicker disturbance factor of the installation of wind turbines, which arise from a registry conducted in the field, with real data measured in the connection node of the wind farm.
Voltage Dip Measurements along MV lines vs Primary Substations Measurements
Authors: F. Belloni  , C. Chiappa  , R. Chiumeo  , L. Garbero  , F. Malegori  , L. Tenti
Published: May 2017

The Italian MV networks voltage quality monitoring system has been collecting power quality data since 6 years by 600 instruments, 400 of which installed on HV/MV substations MV bus-bars and statistical representative of the network, the other 200 installed at some nodes of the MV lines [1]. The paper is focused on the analysis of voltage dips monitored at some of the 200 measuring points considered more significant. The aims were to confirm, on a wider scale, the representativeness of the statistics gathered on the HV/MV stations MV bus-bars with respect to that expected along the MV lines and to investigate the events way of propagation along different voltage levels. The analysis has been performed by both statistical methods on real data and DIgSILENT1 simulations. The possibility to get the MV network voltage dip performance along the lines by measurements at HV/MV stations level has been widely confirmed. Measurements at MV lines have also confirmed the percentages of probable HV origin voltage dips, evaluated at national and macro area levels. The voltage dips duration distributions have shown a good accordance with the typical tripping times of the HV and MV protection system.
Low Cost Dynamic Voltage Restorer
Authors: M. E. C. Brito  , M. C. Cavalcanti  , L. R. Limongi  , F. A. S. Neves
Published: May 2017

In this paper a low cost topology for compensation of voltage sags and swells is proposed. The dynamic voltage restorer neither uses rectifier stage nor dc capacitor and thyristors can be used as switching devices, resulting in a significant cost reduction. The control system is simple, eliminating the use of powerful computational platforms, causing also a cost reduction and reliability increase. To validate the simulation models, an experimental control platform is used to evaluate the proposed dynamic voltage restorer
Numerical analysis of a modified evacuated tubes solar collector
Authors: A. I. Sato  , V. L. Scalon  , A. Padilha
Published: May 2017

The need for renewable energy sources, facing the consequences of Climate Change, results in growing investment for solar collectors’ use. Research in this field has accompanied this expansion and evacuated tube solar collector stands as an important study focus. Thus, several works have been published for representing the stratification of the fluid inside the tubes and the reservoir, as well as analytical modeling for the heat flow problem. Based on recent publications, this paper proposes the study of solar water heating with evacuated tubes, their operation characteristics and operating parameters. To develop this work, a computational tool will be used - in this case, the application of computational fluid dynamics (CFD) software. In possession of the implemented model, a numerical simulation will be performed to evaluate the behavior of the fluid within this solar collector and possible improvements to be applied in the model.
Development of Multifunctional Platform for Education, Research and Promotion of Renewable Energy Sources
Authors: V. Stoilkov  , D. Dimitrov  , M. Stankovski  , H. Spasevska
Published: May 2017

The development of renewable energy sources (RES) in recent decades faced a rapid growth, especially in wind and solar applications. During the implementation of RES from different aspects, many issues have arisen, especially with technology development, grid connection and power quality. The paper is focusing on a project for creation a multifunctional platform with basic aims directed to educational, research and promotional activities for renewable energy sources in general and with special attention to solar/wind applications and energy utilization in both: grid connected and stand-alone applications
Characterization of spray atomization and heat transfer for a swirl nozzle
Authors: Alwadie , A  , M. Abdel-Hamid
Published: May 2017

This paper presents a serious trial to formulate a model for the whole Egyptian power system network which may be appropriate for academic as well as field research purposes. The model is based on the latest published data taken from the website and annual reports of the Egyptian Ministry of Electricity and Energy (EMEE) in addition to many other resources. This network provides more than 110 billion MWh and is growing steadily with a rate within 7 and 8 percent every year. It is an ideal exemplar for a very hybrid large scale system since it includes all the possible power system technologies. The Egyptian power stations include hydraulic, steam, gas, solar as well as wind farm plants. The next significant part of this paper is to simulate the presented model with one of the most recent computer packages. PSAT has been selected for such simulation since it is a free and open source package that suits complicated and large scale systems with minimum effort. Even if we take only those significant portions of the Egyptian grid, we’ll get 731 states (57 buses and 46 synchronous machines in addition to the induction generators of the wind farm) to be simulated and monitored. PSAT as an open source code allows the designer to change the package kernel to lay down such sophisticated model. Other packages are too expensive if one demands versions able to simulate more than specific nodes other the number of nodes which are distributed with the commercial versions. Even so, these packages have prices ranging from $8000 (PSCAD) to $50000 (EDSA). On the other side PSAT is free and can be broadening by professional users to deal with any power system topology. Moreover, it has been found that PSAT application reduces a lot of time in setting up the power system topology and in preparing several additional files for the same case study if it is dealt with other packages.
Wind Farm and System Modelling Evaluation in Harmonic Propagation Studies
Authors: G. A. Mendonça  , H. A. Pereira  , S. R. Silva
Published: May 2017

Wind power plants are playing an important role in renewable energy generation in this decade. With the enhancements in its technology, mainly based on the aggregation of power electronics, many studies have been carried for evaluating their impact in power quality. Although the Brazilian Electrical System National Operator, who is responsible for transmission and generation system management, has suggested a procedure for such studies, there are many aspects related to the simulation algorithm and the electrical components modelling that are left aside from the problem, without an adequate reasoning of its impacts on power quality simulation results. This paper presents a detailed analysis of a wind farm impact on the Brazilian distribution system power quality. Both internal (wind park elements) and external (power grid) components modelling effects on harmonic propagation are considered, and these effects are evaluated
High Voltage Live Works: Comparative Safe Distance Approach Calculation
Authors: S. Belkhir  , H. Moulai  , T. Ainouche  , F. Soukeur
Published: May 2017

High Voltage Live Works: Comparative Safe Distance Approach Calculation
Efficiency analyze Borehole Heat Exchangers (BHEs) of the research geothermal polygon placed at VŠB-Technical University of Ostrava
Authors: P. Bujok  , V.K. Chistyakov  , M. Klempa  , I.A. Straupnik
Published: May 2017

Among renewable energies, low-temperature geothermal energy is gaining importance due the different applications that are being accomplished within residential sector. Forecasts suggest a “promising future” for this energy source.
A study carried out during the realization and operation of the Research Polygons placed at VSB – Technical University of Ostrava. New University Hall is heated up by the heat pumps. This object is the biggest building in the Czech Republic and in the Central Europe which uses this type of the system. Monitoring boreholes are situated in the area of heat pumps boreholes. They are equipped with heat sensors which monitoring temperature changes in circulations systems and in the rock massive during heating (accumulation of heat that comes from air conditioning in summer) and during cooling (pumping of heat from the rock massive by heat pumps in winter). The main goal is to efficiency analyze Borehole Heat Exchangers (BHEs) of the Research geothermal Polygons
Dynamic Modeling and Analysis of Fuel Cell Powered Electric Vehicle
Authors: Osama A. Al-Naseem  , Mohamed A. H. El-Sayed
Published: May 2017

An Electric Vehicle is digitally simulated and presented in this paper. The proposed electric vehicle scheme has four key subsystems to ensure stabilized driving speed. The first subsystem includes Fuel Cell as clean energy resource. The second is the deriving electric motor of the vehicle. The third is the interfacing converters between the energy resource and the driving motor. The fourth subsystem is the control strategy to adjust the hydrogen rate to the fuel cell and to regulate the motor speed to follow up the vehicle load. The different vehicle configurations using either DC or AC motor, PID, Sliding Mode (SM) and direct torque Controllers (DTC) are digitally simulated and compared using Matlab/Simulink/Sim-Power software environment to validate the vehicle performance under varying speed and to justify the appropriate vehicle configuration.
An autonomous photovoltaic system sizing program for office applications in Africa
Authors: Bert Herteleer  , Jan Cappelle  , Johan Driesen
Published: May 2017

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Ecoaldeas or Self-Sustainable Communities and renewable energy solutions (SSC). First approach Ecuador and Mexico
Authors: A.López Agüera  , J. Domingues Azevedo  , I. Rodríguez Cabo  , D. Rey Rey  , V. Gándara Villadoniga  , E. Vieites Montes  , J Peralta  , I. Sosa  , J. Guerra  , M. Alguacil
Published: May 2017

A multidisciplinary project focused on the development of self-sustainable communities (ecoaldeas) is presented. The final objective is to implement a protocol of actions able to prove that common integral solutions based on renewable energies and sustainable development can fulfil the community’s requirements. Moreover, it will be reproducible in other communities in different geographical, social and economic conditions, making them as self-sustainable as possible improving their quality of life. Initial hypothesis, dominant communities parameters, protocol development, technical solutions and first experiences are presented.
Determination of Controllers Constraints for Frequency Stability in Islanded Microgrid
Authors: M. Kohansal  , G. B. Gharehpetian  , M. Abedi  , M. J. Sanjari
Published: May 2017

With large scale integration of micro-generation into low voltage grids, stability becomes an important issue for a Microgrid (MG). The unique nature of the MG requires that it becomes stable in both grid-connected and islanded modes. In grid-connected mode, the main grid guarantees the stability of MG but in islanded mode, the stability is related to all elements of the system and their control units. In this paper, the changes in droop coefficient influencing the frequency stability of the MG are investigated in islanded MG. The simulation results determine the new constraint for controllers in MG
Saturated Induction Machine Modelling Based on High Frequency Signal Injection
Authors: S. Damkhi  , MS. Naït-Saïd  , N. Naït-Saïd
Published: May 2017

The classical induction motor model is not able to analyze the interaction between the low frequency main field and the field generated by high frequency signal injection. To remedy this problem we introduce in this paper a new saturated induction motor model adopts to describe the phenomena produced by adding high frequency signal .This model contains saturation which is considered as the difference between unsaturated and saturated magnetizing flux. The machine is modelling with two different rotor circuits because due to the saturation the air gap flux contains the fundamental and the third harmonic. In order to describe the effects produced by injection of high frequency signal, a rotating voltage signal is added to normal supply of saturated induction motor. The simulation tests are used to verify the validity and accuracy of proposed model.
A (des)articulação do ensino fundamental e a formação dos professores
Authors: Dos Santos Mauricio , Gisi Maria
Published: May 2017

Esse estudo busca analisar o cotidiano escolar e as práticas pedagógicas características dos anos iniciais e finais do ensino fundamental, considerando o processo de municipalização ocorrido no estado do Paraná nas últimas décadas e a acentuada elevação da taxa de distorção idade-série e de reprovação no 6º ano, apuradas pelo Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira (Inep). O foco é a investigação sobre a desarticulação que existe dentro de uma mesma etapa da educação básica, contemplando o ponto de vista dos profissionais da educação que atuam diretamente com esses estudantes. Os dados foram obtidos mediante entrevista semiestruturada com 20 professores de escolas estaduais do município de Curitiba que atuam no 6º ano; análise documental relativa à legislação vigente; dados divulgados pelo Inep/Ministério da Educação (MEC); e estudos existentes sobre a temática. As análises apontam para a necessidade de ações colaborativas que proporcionem a ampliação do debate conjunto entre professores que atuam numa e noutra fase, uma vez que as dificuldades presentes nessa transição, identificadas pela pesquisa, evidenciam-se tanto nas escolas da rede estadual quanto nas escolas da rede municipal de ensino que ofertam as duas fases do ensino fundamental. É preciso, assim, considerar as dificuldades relacionadas à estrutura curricular e à prática pedagógica que são distintas nas duas fases e que apresentam indícios associados às dificuldades de aprendizagem.
Desafios de propostas interventivas de letramentos na Amazônia paraense: a escola brasileira em contextos de hibridização cultural
Authors: Maués Júlia , Guedes-Pinto Ana Lúcia
Published: May 2017

Este artigo apresenta um recorte do projeto A Formação do Professor em Contextos de Hibridização Cultural: Propostas Interventivas de Letramentos na Amazônia Paraense (2015-2016) sobre as práticas de trabalho colaborativas na escola, com o objetivo de contribuir com as reflexões sobre o letramento como uma prática social situada. Para tanto, centra-se em eventos de letramentos na Escola de Ensino Fundamental de Aicaraú –Barcarena, Pará, com o objetivo de focalizar que é possível ensinar e aprender nesse espaço. A metodologia de pesquisa empregada é a etnografia aliada à elaboração de projetos de letramento, ou seja, tomando-se as práticas de escrita voltadas para a as necessidades da cultura local. O arcabouço teórico se fundamenta nas contribuições das áreas de Educação, Linguística Aplicada e dos Estudos de Letramentos na formação do professor, assumindo a palavra como um signo social ideológico. Ao focalizar a compreensão da cultura ribeirinha local mostramos os encaminhamentos instanciados numa escola multisseriada do campo no espaço amazônico, evidenciando a necessidade de atendimento de objetivos imediatos das escolas inseridas nas áreas de impacto dos grandes projetos governamentais providos da década de 1970 no Brasil.