bluuebunny/crossref_metadata_2025 huggingface dataset:
¿CÓMO PUEDE TRANSFORMARSE VERDADERAMENTE LA EVALUACIÓN DEL APRENDIZAJE PRACTICADA POR LOS PROFESORES? UNA EXPERIENCIA PEDAGÓGICA POR LA MEJORA DEL PROFESORADO
Authors: Hernández Nodarse Mario , Gregori Casamayor María , Tomalá Solano Dennis Gisella
Published: June 2018

Con el presente trabajo, se procura compartir una experiencia pedagógica que fue desarrollada en una universidad cubana, con el propósito de mejorar el carácter formativo de las prácticas evaluativas efectuadas, luego de observarse rasgos tradicionales en las mismas. A tal fin, se implementó una estrategia de intervención pedagógica sustentada en preceptos formativos de la evaluación, el enfoque histórico-cultural y ciertos recursos de la investigación-acción. Los resultados obtenidos fueron progresivamente favorables, los cuales fueron valorados mediante la contrastación de observadores (triangulación de valoraciones) como criterio de validez.
Palabras claves: estrategia de intervención pedagógica, concepciones, prácticas evaluativas.
ABSTRACT
The present work intents to share a pedagogical experience that was developed in a Cuban university, with the purpose of improving the formative nature of the evaluative practices carried out, after observing traditional traits in them. To this end, a pedagogical intervention strategy was implemented, based on formative precepts of evaluation, the historical-cultural approach and certain resources of action research. The results obtained were progressively favorable, which were evaluated by means of the cross-check of observers (triangulation of valuations) as criterion of validity.
USO DE LAS TIC COMO RECURSO DIDÁCTICO POR LOS DOCENTES DE LA FACULTAD DE EDUCACIÓN, EL ARTE Y LA COMUNICACIÓN DE LA UNIVERSIDAD NACIONAL DE LOJA
Authors: Uquillas Vallejo Sonia Piedad
Published: June 2018

Este artículo presenta los principales resultados del estudio que se realizó con el objetivo de generar conocimientos sobre el uso de las TIC como recurso didáctico por parte de los docentes de las carreras de la Facultad de Educación, el Arte y la Comunicación de la Universidad Nacional de Loja en el periodo académico septiembre 2015- febrero 2016. El estudio fue de tipo transversal, descriptivo, mediante un cuestionario dirigido a los docentes. Los resultados indican que el 76% de los docentes utilizan las herramientas TIC de manera habitual para realizar explicaciones, presentaciones, reflexiones, evaluación y trabajo colaborativo; también la mayoría de los docentes propicia que los estudiantes realicen diferentes actividades para su aprendizaje con el apoyo de las TIC; sin embargo, no se aprovecha todo el potencial de estos recursos. Además, la mayoría de los docentes señala que es necesario propiciar su actualización continua en el uso pedagógico de las TIC, así como mejorar la infraestructura tecnológica de la FEAC.
ABSTRACT
This article shows the main results of the study that was implemented with the objective to generate knowledge about the use of the TICs as a didactic resource by the teachers of the Careers of the Facultad de Educación, el Arte y la Comunicación de la Universidad Nacional de Loja, in the academic period September 2015- February 2016. The type of investigation was transversal, descriptive, through a questionnaire focused on professors. The results show that 76% of the professors use the TICs tools on a regular basis to provide their students with explanations, presentations, meditations, evaluations and collaborative work; also, most of the professors encourage their students to perform different activities for their learning with the support of the TICs; however, all the potential of these resources is not used. Furthermore, the majority of professors point out that it is necessary to encourage their students to continue updating in the pedagogical use of the TICs, as well as to improve the technological infrastructure of the FEAC. (Faculty of Education, Art and Communication).
Pertenencia en la Competencia Digital en los estudiantes de la Universidad Católica de Cuenca, un estudio descriptivo
Authors: Cordero Guzman Diego , Mory Alvarado Andrea
Published: June 2018

La investigación ejecuta un análisis descriptivo de la pertenencia en la competencia digital, manifestada por los estudiantes de la carrera de Ingeniería de Sistemas de la Universidad Católica de Cuenca. Para este cometido se aplica un instrumento que recaba datos cuantitativos, cuyo fin es analizar la variable “pertenencia” que forma parte de una serie de constructos orientados a determinar competencia digital en el estudiante. Se exponen los resultados demográficos y estadísticos de las variables luego de haber aplicado a un tamaño muestral representativo de estudiantes de diversos ciclos de formación. Al final se levantan los resultados y conclusiones del estudio y se elaboran las sugerencias para futuras investigaciones en donde se incluyan variables adicionales como: derechos, privacidad, seguridad, acuerdos de nivel de servicio, etiqueta entre otras, que permitan estructurar una propuesta de modelo para competencia digital.

ABSTRACT

This research executes a descriptive analysis of the belonging in the digital competition, manifested by the students of the Systems Engineering career of the Catholic University of Cuenca. For this purpose, an instrument that collects quantitative data is applied, whose purpose is to analyze the "belonging" variable that is part of a series of constructs oriented to determine digital competence in the student. The demographic and statistical results of the variables are presented after having applied to a representative sample size of students of different training cycles. At the end, the results and conclusions of the study are raised and suggestions for future research are elaborated, including additional variables such as: rights, privacy, security, service level agreements, and etiquette among others, to structure a model proposal for digital competition.
El impuesto a la salida de divisas y su incidencia en la economía ecuatoriana, años 2014 - 2016
Authors: Asencio Cristóbal Nelson , Asencio Cristóbal Luis , Tomalá Chavarría Mónica
Published: June 2018

La crisis económica mundial obligó al gobierno a reestructurar el sistema tributario; entre estas reformas se incluyó la creación  del Impuesto a la Salida de Divisas (ISD), el mismo que fue creado con el objetivo de desincentivar la salida de capitales al exterior, estimular la inversión y  la producción nacional. La razón que motiva este estudio es realizar un análisis de la recaudación tributaria del ISD y determinar su incidencia en la economía nacional, en los últimos años. Este impuesto es el segundo rubro de importancia en la recaudación de impuestos directos, detrás del Impuesto a la Renta. Según información del SIR en el 2016 se recaudaron 965 millones de dólares, 17,11% menos de lo recaudado en el 2015. En la investigación se aplicaron procedimientos metodológicos de tipo cuantitativo y técnicas de investigación para el análisis, cuyos resultados demuestran el logro de los objetivos planteados por el gobierno ecuatoriano.

ABSTRACT

The world economic crisis forced the government to restructure the tax system, which included the creation of the Foreign Exchange Tax (ISD), which was created with the aim of discouraging capital outflows abroad, stimulating the investment and national production. The reason that motivates this study is to perform an analysis of the tax collection of the ISD and determine its impact on the national economy in recent years. This tax is the second most important item in the collection of direct taxes, behind the Income Tax. According to information from the SIR in 2016, 965 million dollars were collected, 17.11% less than what was collected in 2015. In the research, quantitative methodological procedures and research techniques were applied to the analysis, the results of which show the achievement of the objectives set by the Ecuadorian government.
Selección de pozos candidatos a Fracturamiento Hidráulico en el campo Gustavo Galindo Velasco.
Authors: Bustos Mauricio , Chuchuca Aguilar Fidel , Portilla Lazo Carlos , Carvajal Fausto
Published: June 2018

El campo Gustavo Galindo Velasco ubicado en la provincia de Santa Elena, ha comenzado a mostrar signos de envejecimiento o madurez, denominándose campo maduro debido a la reducción de la presión del yacimiento, lo que ocasiona una disminución en la producción de los pozos. Para incrementar la producción de los pozos y prolongar la vida de este campo, se propone la selección de pozos candidatos a fracturamiento hidráulico, para ello, es necesario realizar un análisis preliminar de investigación referente al diseño de completación, historial de producción y reacondicionamiento efectuados en cada pozo, formaciones productoras, estimación de sus reservas, correlación e interpretación de registros eléctricos, calidad y tope del cemento, intervalos a punzar y diseño de fractura. Los resultados obtenidos de la investigación, permiten aproximar el incremento de la producción después de efectuar el fracturamiento hidráulico en los pozos seleccionados y el análisis económico respectivo del proyecto, mediante el uso de los indicadores de rentabilidad.

ABSTRACT

The Gustavo Galindo Velasco field located in the province of Santa Elena has begun to show signs of aging or maturity, being called mature field due to the reduction of the reservoir pressure, which causes a decrease in the production of the wells. To increase the production of the wells and prolong the life of this field, the selection of candidate wells to hydraulic fracturing is proposed, for which it is necessary to carry out a preliminary research analysis regarding the completion design, production history and reconditioning carried out in each well, production formations, estimation of their reserves, correlation and interpretation of electric logs, quality and top of cement, intervals to puncture and design of fracture. The results obtained from this research allow to approximate the increase in production after performing the hydraulic fracturing in the selected wells and the respective economic analysis of the project, through the use of profitableness indicators.
Estimación del gasto energético de los caprinos en la Península de Santa Elena
Authors: Chávez Debbye , Villacres Matías Julio
Published: June 2018

El presente estudio guarda estrecha relación con la alimentación de caprinos, las ganancias de peso y su producción; sabiendo que, para que un animal logre buenos rendimientos productivos se hace necesaria una alimentación que cubra necesidades energéticas de mantenimiento, luego de crecimiento y ganancia de peso o de producción; se determinó el recorrido en unidades de desplazamiento; luego, por medio de fórmulas de medición energética trasformar esto a energía metabolizable que es una unidad fácilmente relacionable con las necesidades energéticas de mantenimiento y de producción, siendo 60 cabras de diferentes razas las que se consideraron en este estudio, donde se registró su peso, y edad antes de que formen parte del ensayo. Con la ayuda de podómetros calibrados para usarlos en cabras, se determinó el recorrido habitual. Los podómetros fueron colocados en uno de sus miembros posteriores a la altura de la rodilla, y retirados 24h después, registrando su desplazamiento y actividades en busca del alimento. Utilizando Excel se procedió a la tabulación y organización de los datos, que fueron sometidos a estadística descriptiva y análisis de la información, como resultado se evidenció 5Km de recorridos por animal, con edades entre 2,5 años de promedios, de igual forma las razas de cabras más frecuentes fueron, en primer lugar la Criolla y en segundo la Nubia; ambas razas de animales no se diferenciaron en el recorrido y peso, lo que permitió utilizar una forma universal de estimación del gasto energético (0,49 kcal/kg /km) pudiéndose determinar que fueron 87,69Kcal involucradas en 24h de actividad.

ABSTRACT

This study is closely related to feeding goats, weight gain and production; knowing that, for an animal to achieve good production yields a feed that covers maintenance energy requirements is necessary , after growth and weight gain or production a route was determined in units of displacement; then by using formulas of energetic measurement transform these to metabolizable energy which is a easily relatable unit with the energetic requirements of maintenance and production, 60 goats from different races were considered in this study, in which their weight and ages were recorded before forming part of the test. With the help of pedometers calibrated for use in goats, the usual route is determined. Pedometers were placed in one of his post-kneemembers, and retired after 24h, recording their movement and activities in search of food. Using Excel proceeded to the tabulation and organization of data, which were subjected to descriptive statistics and analysis of information, as a result of tours 5Km animal showed, aged 2.5 years average, similarly races more frequent goats were first Creole and secondly the Nubia; both breeds of animals did not differ in the way and weight, enabling use a universal way to estimate energy expenditure (0.49 kcal / kg / km) being able to determine which were involved in 24h 87,69Kcal activity.
Producción de pollos criollos con una incubadora artesanal de huevos en la comuna San Vicente cantón Santa Elena
Authors: Acosta Lozano Néstor , González Asencio María , Duque Marín Richad , Andrade Yucailla Verónica
Published: June 2018

Las aves ocupan un lugar primordial en la alimentación humana. Su producción se realiza cada vez con mayores niveles de tecnificación, lo que la hace costosa y requiere de condiciones especiales, sobre todo de conocimientos y financiamiento para su implementación. Dadas las condiciones de la provincia de Santa Elena y de la comuna San Vicente, en que no están dadas las condiciones para el uso de la tecnología a gran escala, se propone este trabajo, que tiene como objetivo documentar el diseño, construcción y manejo de una incubadora artesanal de huevos en la localidad de estudio. Para ello se diseñó un experimento donde se construyó con éxito una incubadora y se pudo constatar el desarrollo favorable de las variables estudiadas.

ABSTRACT

Birds occupy a primordial place in human nutrition. Its production is carried out each time with higher levels of technology, which makes it expensive and requires special conditions, especially knowledge and financing for its implementation. Given the conditions of the province of Santa Elena and the commune of San Vicente, in which the conditions for the use of technology on a large scale are not given, this work is proposed, which aims to document the design, construction and management of an egg incubator in the study location. To this end, an experiment was designed where an incubator was successfully built and the favorable development of the variables studied could be verified.
An Improved Recommender for Travel Itineraries
Authors: Gu Yajie , Zhou Jing , Liu Shouxun
Published: June 2018

Given the vast amount of information, including the numerous points-of-interest (POIs) and the various hotels, available on travel websites such as tripadvisor or booking, a recommender system would help users, who are planning their next trip, filter out unnecessary information based on their requirements. We improved our previous work on a recommendation system that was intended to facilitate the generation of daily travel itineraries. We used the X-Means clustering algorithm to divide all attraction sites and hotels into groups according to geographical location. Meanwhile, a Word2Vec model was trained using the Wikipedia text corpus to obtain similar tags of specific ones. A tag-based mapping algorithm was applied to create a list of candidate attractions that best match with the user's favorite spots. Finally, by taking into account the weather information, our recommender can further refine the list of candidate attractions and work out a daily itinerary that involves desirable hotels and attractions. The shortest itinerary (SI) and the itinerary with the highest performance/price ratio (MEI) will then be produced for user selection.  The results of a series of experiments demonstrated that, compared to others, our personalized recommender for travel planning can provide a more appealing and detailed travel plan containing daily itineraries for users. 
A Census of Actively Licensed Physicians in the United States, 2014
Authors: Young Aaron , Chaudhry Humayun J. , Pei Xiaomei , Halbesleben Katie , Polk Donald H. , Dugan Michael
Published: June 2018

Marked changes have occurred in health care delivery in the United States with the implementation of the Affordable Care Act (ACA), including the advancement of integrated health systems, the introduction of patient centered medical homes and the creation of accountable care organizations. With millions of Americans newly insured, never has there been a more pressing need for accurate physician workforce information and planning. Opinions vary about the nature and degree of anticipated physician shortages, and health care workforce determinations are fraught with variables and uncertainties that are challenging to address definitively. Identifying accurate information about the nation's currently licensed physician workforce, however, is an important starting point.

This article reviews data received in 2014 by the Federation of State Medical Boards from the nation's state medical and osteopathic boards about the current supply of actively licensed physicians in the United States and the District of Columbia. Our census data demonstrates the total population of licensed physicians (916,264) has increased by 4% since 2012, and the nation, on average, added 12,168 more licensed physicians annually than it lost. The average physician is now older (by a year), predominantly male (but increasingly female at entry level) and increasingly a graduate of a medical school in the Caribbean. Meanwhile, the percentage of physicians with a single state medical license has remained constant at 79%.
The effect of grass endophytes on earthworms and slugs under a turf mowing regime
Authors: Pennell Chris G.L. , Rolston M. Philip , Van Koten Chikako , Mace Wade J. , Hume David E. , Card Stuart D.
Published: June 2018

Earthworms are not a direct pest of turf grass but they are considered a problem on many sports fields, disrupting playability and aesthetics due to the castings they deposit on the playing surface. Also, a number of slug species are well-known foliage destroying pests of a number of agriculturally important crop species. Perennial ryegrass and tall fescue cultivars associated with selected EpichloÃ« endophytes, originally developed for bird management at airports, were assessed to determine their deterrent properties towards worms and slugs. Plots sown with endophyte-free ryegrass had significantly higher numbers of worms and slugs than plots containing the same grass cultivar infected with the endophyte strain AR95. Also, plots sown with endophyte-free tall fescue had significantly higher numbers of slugs (but not worms) than plots containing the same grass cultivar infected with the endophyte strain AR601. Although more research is required on the exact mechanism of action, these results suggest selected novel endophyte-infected grass associations, such as those including the endophyte AR95, may substantially reduce populations of worms and slugs in areas where these grasses are sown.
Efecto de los tiempos de recolección post cosecha de Daucus carota sobre la composición química del tubérculo, hojas y tallos como sustrato para ensilaje
Authors: Soldado-Soldado G. , Valiño Cabrera E. , Fernández-Páramo L. , Viafara-Banguera D. , Huilca-Álvarez W. , Morocho-León E. , Ortíz-Nacaza P. , Riofrío-Carrión A. , Andrade-Yucailla V.
Published: June 2018

Con la intención de evaluar el efecto de los tiempos de recolección post cosecha 0, 24 y 48 horas sobre el valor nutritivo de la Daucus carota y él estudió del tubérculo (T1); hoja + tallo (T2); combinado tubérculo + tallo + hoja (T3), que fueron cultivados en la región andina en la provincia de Chimborazo, el presente estudio se realizó en el Centro de Investigación Posgrado y Conservación Amazónica, de la Universidad Estatal Amazónica contemplando que el tubérculo en estudio pertenecía a una misma área de siembra y día de cosecha con una edad de 5 meses, en la parroquia San Luis de la ciudad de Riobamba, para el análisis estadístico se aplicó una comparación de medias empleando el paquete SPSS ver. 21 los resultados obtenidos en la evaluación del efecto del tiempo de post cosecha y en las diferentes partes de la Daucus carota nos demuestran resultados favorables, se observó niveles de proteína de 0,36 g y 0,88 g en el T1 y T2 respectivamente. Se reduce a la mitad la FND a las 24 horas en el T3 con un valor de 16,73 g. Existe un efector diluyente de la lignina en 3,37, 4,46 y 2,77 veces en el T1 con respecto al T2. No se observa deterioro en el producto. Se concluye que los residuales post cosecha de la zanahoria por sus características químicas pudieran ser utilizados como una alternativa de alimentación animal
Comportamiento higiénico y nivel de infestación con Varroa destructor de Apis mellifera en la zona centro del Ecuador
Authors: Masaquiza Moposita D. , Curbelo Rodríguez L. , Díaz Monroy B. , Pilataxi R. , Andrade-Yucailla V.
Published: June 2018

Con el propósito de evaluar el comportamiento higiénico (CH) y su relación con las tasas de infestación (TIA) por Varroa destructor de abejas adultas (Apis mellifera), el presente trabajo se realizó en las provincias de Tungurahua y Chimborazo de la República del Ecuador; se muestrearon un total de 85 colonias durante los meses de abril y mayo de 2017. A cada colmena se le determinó el comportamiento higiénico a través de la técnica del perforado; conjuntamente se tomaron muestras para los diagnósticos de detección de varroa por el método de De Jong. Los resultados indican que para el CH los apiarios de Tungurahua y Chimborazo mostraron diferencias significativas (P£0,05), con valores medios de 80,3 % y 73,5 % y una TIA de 5,2 % y 3,13 % sin significancia al U de Mann-Whitney. Las colonias se clasificaron en base al CH obteniéndose tres grupos: alta CH (15 colmenas), intermedia CH (65 colmenas) y baja CH (5 colmenas), se comprobó que el acaro varroa está presente en toda la zona de estudio, con una prevalencia del 86 % de las colmenas (73/85). Se encontraron correlaciones negativas altamente significativas entre la CH y el número de ácaros en etapa forética (r= -0,547), revelando que aquellas colmenas con un mayor CH, presentaron menores cargas parasitarias. Se encontraron diferencias en el comportamiento higiénico de los apiarios de la provincia de Tungurahua y Chimborazo, mientras que se diagnosticaron tasas de infestación medias para estas provincias, comprobando que el acaro varroa está presente en la zona
Draining the Sea: Counterinsurgency as an Instrument of Genocide
Authors: Xu Cheng
Published: June 2018

All cases of genocide in the modern era feature counterinsurgency in some capacity. Often, genocidal acts are justified as counterinsurgency, and counterinsurgency doctrines and tactics are employed to carry out many genocides. While genocides often have international dimensions, they are mostly carried out within the context of intrastate armed conflicts, almost all of which can be characterized as counterinsurgency. In this article, I expand upon Martin Shaw's model of Genocide as War by exploring the theoretical linkages between counterinsurgency and genocide to demonstrate where counterinsurgency fits into the genocide process. Two specific linkages are drawn to show how counterinsurgency complements the genocide process: total transformation of society through militarization, and exploitation of the asymmetries of power between the opposing groups. The relationship between counterinsurgency and genocide is not constructed as a causal one, but recursive (i.e., mutually reinforcing). By examining the Rwandan and Guatemalan Genocides, I demonstrate how genocide is operationalized through counterinsurgency in both cases. I conclude by providing areas for further investigation toward a unifying theory between the scholarships on genocide and counterinsurgency.
Pengaruh Badai Tropis Cempaka Terhadap Kejadian Tanah Longsor di Kabupaten Bantul Yogyakarta
Authors: Aminatun Sri , Anggraheni Dinia
Published: June 2018

Siklon tropis Cempaka yang terjadi pada 28 dan 29 November 2017 menyebabkan bencana di semua kabupaten dan kota di Daerah Istimewa Yogyakarta. Kabupaten Bantul adalah kabupaten yang paling selatan dan berdekatan dengan Samudra Indonesia ini menjadi daerah yang paling banyak terkena dampak bencana ini. Siklon tropis tersebut menimbulkan dampak yang sangat besar pada daerah-daerah yang dilaluinya, seperti angin kencang, hujan lebat, tanah longsor, banjir, gelombang tinggi, dan gelombang badai. Kejadian tanah longsor sebagian besar disebabkan oleh curah hujan yang meninggi ditambah dengan stabilitas tanah yang rendah. Tujuan dari penelitian ini untuk mengetahui pengaruh curah hujan selama terjadi siklon Cempaka terhadap kejadian bencana tanah longsor di Kabupaten Bantul agar dapat dipergunakan untuk melakukan mitigasi bencana badai sklon tropis apabila terjadi lagi di waktu yang akan datang. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kualitatif yang digunakan untuk memberikan gambaran jelas tentang pengaruh curah hujan selama terjadi Siklon Tropis Cempaka terhadap kejadian tanah longsor. Sumber data yang digunakan adalah sumber data primer dan sekunder melalui wawancara dan dokumentasi. Hasil dari penelitian menunjukkan bahwa jumlah kejadian bencana tanah longsor selama Siklon Tropis Cempaka mengalami peningkatan. Selain itu, penelitian ini menghasilkan basis data yang akan dipergunakan untuk melakukan rencana mitigasi bencana.Kata kunci: siklon tropis, curah hujan, tanah longsor, mitigasi Tropical Cempaka syclones that occurred on 28 and 29 November 2017 caused disasters in all districts and cities in the Special Region of Yogyakarta. The district of Bantul is the southernmost district and adjacent to Indonesia's oceans is the area most affected by this disaster. The tropical cyclon has a huge impact on the areas they go through, such as strong winds, heavy rain, landslides, floods, high waves, and storm surges. The occurrence of landslides is mostly caused by increased rainfall and also low soil stability. The purpose of this research is to know the effect of rainfall during Cempaka cyclone to the occurrence of landslide disaster in Bantul district so that it can be used to mitigate the disaster of tropical storm when it happens again in the future. The method used in this research is descriptive method with qualitative approach used to give a clear data about the influence of rainfall during Cempaka Tropical Cyclone to the occurrence of landslide. Sources of data used are primary and secondary data sources through interviews and documentation. The results of the research show that the number of occurrences of landslide disaster during Cempaka Tropical Cyclone has increased. In addition, this research produces a database that will be used to conduct disaster mitigation plans.Keywords: tropical cyclone, rainfall, landslide, mitigation
Fabrikasi Transformator Step-up 1-kV Fasa Tunggal untuk Generator Pemicu Transduser Ultrasonik
Authors: Hidayat Darmawan , Syafei Nendi Suhendi , Wibawa Bambang Mukti , Tumbelaka Bernard Y.
Published: June 2018

Generator pulsa tegangan tinggi diperlukan untuk memicu transduser ultrasonik dalam proses pembangkitan gelombang ultrasonik. Salah satu komponen sumber daya generator pulsa ini adalah tegangan tinggi searah (DC) orde 1 kV. Makalah ini melaporkan desain dan fabrikasi tegangan tinggi DC melalui transformator step-up inti besi fasa tunggal 0,5 mA dengan tegangan punak-puncak sinusoida sekunder hingga 1 kV 50 Hz. Masukan primer adalah jala-jala 220 VAC dengan variasi tegangan AC terminal sekunder 100, 200, 400, 600, 800 dan 1000 V. Sebuah dioda jembatan penyearah digunakan untuk penyearahan penuh tegangan AC sekunder menjadi DC. Kinerja transformator meliputi rasio dan linearitas penguatan tegangan, tanggapan frekuensi, dan analisis pembebanan. Hasil pengujian menunjukkan amplitudo tegangan sekunder meningkat linear seiring kenaikan tegangan sekunder dengan tegangan sekunder maksimum adalah 1220 V untuk masukan primer 220 VAC. Hasil penyearahan menunjukkan penyearahan penuh dengan ripple kurang dari 1%. Berdasarkan hasil seluruh pengujian, transformator dapat mencatu tegangan tinggi yang diperlukan hingga ~1 kV dengan daya maksimum sekitar 400 Watt memenuhi kriteria untuk mencatu generator pulsa tegangan tinggi.Kata kunci: tegangan tinggi, transformator, arus searah, step-upA short-time-width high-voltage pulse generator is necessary for the generation of ultrasonic waves in the purposes of various material evaluations and physical quantity measurements. This necessitates a DC high voltage power supply in the order of hundreds of volts. This work reports a design and fabrication of an iron-cored single phase 0.5 mA step-up transformer which provided secondary output voltage up to 1 kV with a 50-Hz sinusoid primary working voltage of 220 VAC. An integrated bridge diode fully rectified the secondary voltage waveforms into an unrectified DC voltage. Transformer performance including the step-up ratio and gain, frequency response and load analysis were evaluated. The test results showed secondary maximum voltage of 1220 V for 220 VAC primary input, which secondary voltages proportionally increased with the increasing of primary voltage. The evaluated transformer parameters included ratio and linearity of voltage gain, frequency response and loading analysis. The frequency response analysis exhibited that the transformer working frequency was 50 Hz. In conclusion, the designed transformer were able to provide up to 1 kV DC voltage with maximum power of 400 W. This was sufficiently adequate to provide DC high voltage for the ultrasonic transducer pulse circuit.Keywords: high voltage, transformer, DC voltage, step-up
Perencanaan Arsitektur Enterprise Sistem Informasi Disnakersostrans Kabupaten Purwakarta Menggunakan TOGAF
Authors: Irmayanti Dede , Permana Budi
Published: June 2018

Perencanaan arsitektur enterprise Sistem Informasi Dinas Tenaga Kerja, Sosial, dan Transmigrasi (Disnakersostrans) Kabupaten Purwakarta dirancang dengan menggunakan kerangka kerja The Open Group Architecture Framework (TOGAF) dengan metode Architecture Development Method (ADM). Penggunaan kerangka kerja TOGAF ADM digunakan sebagai acuan dalam merencanakan suatu arsitektur enterprise sistem informasi sehingga dapat dibangun suatu sistem informasi dan teknologi informasi yang saling terintegrasi dan selaras dengan kebutuhan aktivitas bisnis organisasi khususnya dalam pelayanan terhadap masyarakat. Pengumpulan data dilakukan dengan cara wawancara dan melakukan pengamatan langsung terhadap organisasi. Alat bantu analisis yang digunakan yaitu metode Unified Modelling Language (UML) dan metode Value Chain. Perencanaan arsitektur enterprise ini bertujuan untuk membangun sistem informasi dan teknologi informasi yang selaras dengan proses bisnis yang ada di Disnakersostrans Kabupaten Purwakarta. Hasil dari penelitian ini berupa blue print arsitektur bisnis, arsitektur data, arsitektur aplikasi yang menghasilkan lima aplikasi lama yaitu IPK, SIMPKH, SIMDA, SISKOTKLN dan TKA online dan dua puluh tiga aplikasi baru. Serta menghasilkan arsitektur teknologi berupa arsitektur jaringan sebagai acuan dalam pembangunan sistem lebih lanjut, sehingga dapat menunjang proses bisnis yang ada di Disnakersostrans Kabupaten Purwakarta.      Kata kunci: TOGAF, ADM, arsitektur enterprise, sistem informasi, blue print The enterprise information system architecture planning of Manpower, Social and Transmigration Office (Disnakersostrans) of Purwakarta is designed using The Open Group Architecture Framework (TOGAF) with Architecture Development Method (ADM). The TOGAF ADM framework is used as a reference in planning an enterprise information system architecture so that it can build an information system and information technology that is integrated and aligned with the needs of the organization's business activities especially in the service to the community. Data collection is done by interview and direct observation to the organization. Analytical tools used are Unified Modeling Language (UML) and Value Chain method. Enterprise architecture planning is aimed to build information systems and information technology in harmony with existing business processes in the Disnakersostrans Purwakarta. The results of this research are the blue print of business architecture, data architecture, application architecture that produces five old applications namely IPK, SIMPKH, SIMDA, SISKOTKLN and TKA online and twenty three new applications. As well as produce technology architecture in the form of network architecture as a reference in further development of the system, so it can support the existing business processes in the Office of Disnakersostrans Purwakarta.Keywords: TOGAF, ADM, enterprie architect, information system, blue print
Studi Alternatif Pengembangan Trase Jalur Kereta Api DAOP VI Yogyakarta Menuju NIYA Kulon Progo
Authors: Chasanah Faizul , Putro Aziz Anjasmoro Harjoko
Published: June 2018

Berdasarkan Keputusan Menteri Perhubungan Nomor KP 1164 Tahun 2013, Bandara Adi Sutjipto Yogyakarta direncanakan pindah ke Kabupaten Kulon Progo karena jumlah penumpang saat ini sudah melebihi daya tampung terminal. Salah satu moda transportasi untuk menunjang aksesibilitas integrasi ini adalah kereta api. Tujuan penelitian ini adalah mengevaluasi alternatif trase penelitian sebelumnya, memberikan alternatif trase baru, dan menentukan trase terbaik. Survei pendahuluan berupa pengamatan langsung di lokasi penelitian untuk mengevaluasi trase penelitian sebelumnya dan mensurvei daerah yang memungkinkan untuk direncanakan alternatif trase baru. Pembobotan kriteria dan pemilihan alternatif trase dilakukan dengan wawancara dan pengisian kuesioner oleh stakeholder dan dianalisis menggunakan metode Analytical Hierarchy Process (AHP). Stakeholder ditentukan dengan teknik purposive sampling yang terdiri dari berbagai instansi terkait. Hasil penelitian menunjukkan bahwa trase yang direncanakan penelitian sebelumnya (Trase A) berpotensi konflik sosial dan tidak sesuai dengan masterplan bandara baru. Alternatif trase baru (Trase B) memiliki panjang trase lebih pendek dan sebagian besar menggunakan lahan pertanian sehingga konflik sosial rendah. Trase terbaik berdasarkan metode AHP adalah Trase B dengan total bobot akhir lebih tinggi daripada total bobot Trase A.  Kata kunci: Analytical Hierarchy Process (AHP), bandara, jalur kereta api, trase Based on the Minister of Transportation decision number KP. 1164-2013, Adisutjipto Yogyakarta Airport is planned to move to Kulon Progo Regency because the existing passangers number exceeds the terminal's capacity. One mode of transportation to support the integration accessibility is the train. This research aims to evaluate the trace alternative of previous research, give a new alternative trace approach, and determine the best tracking. Preliminary survey was done by direct observation at the research sites to evaluate the previous research track and to survey possible areas for new plan. The criteria scoring and selection of trace alternatives were done by interviewing and filling questionnaires by stakeholder and analyzed using Analytical Hierarchy Process (AHP) method. Stakeholders are determined by purposive sampling technique involved in institution variation. The result of the research show that the trace planned by prvious research (Trace A) has the potential for social conflict and is not in accordance with new airport master plan. The new trace alternative (Trace B) has the shorter trace length and mostly using agricultural land so that social conflic is low. The best tracking based on AHP method is Trace B with total score is higher than Trace A.  Keywords: Analytical Hierarchy Process (AHP), airport, railway, trace
Penyusunan Prosedur Operasional Standar Pengelolaan Proyek Berdasarkan Kerangka Kerja ITIL V3 dan PMBOK 5th
Authors: Hikmawati Erna
Published: June 2018

Dalam hal pengelolaan proyek, ada suatu standar yang dikeluarkan oleh Project Management Institute (PMI) yaitu Project Management Body of Knowledge (PMBOK) yang berisi mengenai standar dalam mengelola sebuah proyek. Selain itu, ada juga kerangka kerja (framework) yang memberikan best practice dalam manajemen layanan IT yaitu IT Infrastructure Library (ITIL). PT. Pasim Sentra Utama merupakan salah satu perusahaan IT Consultant di Bandung yang belum memiliki Prosedur Operasional Standar (POS) dalam pengelolaan proyek. Untuk meningkatkan daya saing dan performa dari perusahaan, maka sebaiknya PT. Pasim Sentra Utama menyusun POS yang standar dalam hal pengelolaan proyek. Melihat kondisi yang ada saat ini, maka penyusunan POS di PT. Pasim Sentra Utama sangat cocok menggunakan metode Business Process Reengineering (BPR). Hasil dari penelitian ini berupa 10 proses bisnis pengelolaan proyek di PT. Pasim Sentra Utama yang dapat diselaraskan dengan proses-proses yang ada pada standar PMBOK 5th dan kerangka kerja ITIL sehingga setiap aktivitas di dalamnya menjadi lebih efektif, efisien, dan terarah.Kata kunci: Prosedur Operasional Standar (POS), PMBOK, ITIL, Business Process Reenginering (BPR), proyek IT In project operational, there is a standard established by Project Management Institute (PMI) known as Project Management Body of Knowledge (PMBOK) containing standards in managing a project. In addition, there is also framework which describes best practice in IT service management i.e. IT Infrastructure Library (ITIL). PT. Pasim Sentra Utama is one of IT consultant in Bandung having project experiences and clients from many kinds of fields. Nonetheless, the company has not possessed SOP in project management. In order to improve company’s competitiveness and performances, the SOP has to be established. According to this condition, the arrangement of SOP in the company is assumed to be done by using Business Process Reengineering (BPR) methods. The result of this thesis shows that there are ten business process of project management in the company which can be synchronized to the process on PMBOK 5th standards and ITIL framework. Therefore, the standard operational procedures are arranged based on the requirement of input, process, equipment, technic, output, resources, related parties, and also infrastructures need mentioned in PMBOK 5th standards and ITIL V3 framework. This caused all activities become more directional, effective, and efficient.Keywords: Standard Operational Procedures (SOP), PMBOK, ITIL, Business Process Reengineering (BPR), IT projects
Salpleflavone, A New Flavone Glucoside from Salvia Plebeia
Authors: Yu Hang-Fei , Zhao Hong , Liu Ruo-Xi , Ma Lie-Feng , Zhan Zha-Jun
Published: June 2018

Salpleflavone, a new flavone glucoside bearing a sinapinoyl moiety, was isolated from the aerial parts of Salvia plebeia R. Br., together with three known compounds, salplebeone A, salplebeone D and 6- O-methyl-scutellarein. The structure of the new compound was established by detailed analyses of the spectroscopic data, especially 1D and 2D NMR and HR-ESI-MS.
Histopathological Study of Malignant Neoplasm of Breast of Different Age and Sex Groups In a Tertiary Care Hospital
Authors: Nahar Nazmun , Iqbal Mohammed , Rahman Kazi Md Shahidur , Yusuf Md Abdullah , Iqbal Shahed , Hossain Shahana
Published: June 2018

Background: Various types of female breast cancer associated with rapidly increasing age incidence. Objective: The purpose of the present study was to find out the frequency of different types of malignant neoplasm of breast in different age and sex.Methodology: This cross-sectional study was carried out at the Department of Pathology, Chittagong Medical College, Chittagong, Bangladesh from May 2005 to June 2006. Patients presented with breast lump of different age and sex were subjected to this study. Details gross examination was done followed by H & E staining for histopathological study.Result: A total number of 48 samples were selected after fulfilling the inclusion and exclusion criteria. This present study conducted in 27 specimens out of 48 breast lump. Among these benign and malignant were 21 and 27, respectively. Majority of the malignancy found in age group 41-50 years. Histopathologically Invasive ductal carcinoma was common 81.5%.There was significant association between different age group and type of neoplasm. In relation to sex malignant breast neoplasm was more common in female.Conclusion: In conclusion invasive ductal carcinoma was the commonest lesion of breast. In relation to sex malignant breast neoplasm was more common in female.Journal of Current and Advance Medical Research 2018;5(2):42-44
Anxiety and Academic Performance among Private Medical College Students
Authors: Das Shila Rani , Biswas Chinmay
Published: June 2018

Background: Medical students are in a huge pressure due to their academic syllabus. Objective: The purpose of the present study was to assess the relationship between anxiety and academic performance among private medical college.Methodology: This cross sectional study was done in private medical College Hospital, Dhaka, Bangladesh and 3rd and 4th year medical student were included. Data was   collected by using semi structured Socio-demographic questionnaire and Burn Anxiety Inventory scale and Checklist. Finally all data and results were analyzed using latest version of SPSS software. For descriptive statistics means, medians, SD and range will be calculated as required. Data will be presented in frequency table, bar, pie and scattered diagram as per need.  Statistical test chi-square test were used and p<0.05 was consider to be statistically significant.Results: A total number of 200 medical students were studied after fulfilling the inclusion and exclusion criteria. Among them 87.0% were Muslim; 98.0% were unmarried; 83.0% were in nuclear family; family member of 42.5% respondents had 4 to 6 persons; monthly income of 64.7% respondents were less than 50,000 Taka; 47.0% of the respondents’ father occupation was businessman. In 1st profession examination 68.0% in Anatomy, 73% in Physiology, 76% in Biochemistry were passed in anatomy. In 1st professional exam, students suffered from moderate to extreme anxiety were passed 78% and referred 22% as well as suffered from minimal to mild anxiety were passed 43% and referred 57% in Physiology. So there was strong association between the two variables (p<0.05).Conclusion: Three fifth of the students are suffered from moderate anxiety level and those who are suffered moderate to extreme anxiety passed more and their class attendance are good.Journal of Current and Advance Medical Research 2018;5(2):68-72
Cardiovascular Tests for Risk Assessment in Asymptomatic Adults and Implications for Pilots
Authors: Ady Wirawan I. Made , Griffiths Robin F. , Larsen Peter D.
Published: June 2018

BACKGROUND: This study aims to examine which marker or testing protocols have been suggested for cardiovascular disease (CVD) risk assessment in asymptomatic populations, at which CVD risk level, and how this can be implemented for CVD risk assessment in pilot populations.METHODS:
A systematic search was performed using Systematic Reviews Subset on PubMed; the OvidSP interface, including all EBM reviews and EMBASE databases; and the G-I-N International Guideline Library. From each recommendation, we extracted data on consideration of the use of a marker or test for
cardiovascular risk assessment in asymptomatic populations.RESULTS: Included were 45 guidelines, systematic reviews, or meta-analyses relevant to cardiovascular risk assessment in asymptomatic populations. The majority (9/12) of the citations recommend coronary artery calcium score
(CACS) for CVD risk assessment in intermediate-risk (10-yr CVD risk score of 10–20%) asymptomatic adults. Other cardiac and vascular tests that may also be considered include the measurements of carotid-intima media thickness, supplemented by carotid plaque, and the ankle brachial index
for prevention of peripheral artery disease and stroke. Stress myocardial perfusion scan is the potential cardiac functional test to be used with pilots with 5-yr risk of ≥15%. Among laboratory markers, only hs-CRP has a potency to be used in CVD risk assessment in intermediate-risk asymptomatic
adults; however, the strength of the recommendation is not adequate.DISCUSSION: Among the cardiac and vascular testing available, CACS is the most frequently suggested test. The implications of findings for CVD risk assessment in airline pilots are highlighted in this paper.Wirawan
IMA, Griffiths RF, Larsen PD. Cardiovascular tests for risk assessment in asymptomatic adults and implications for pilots. Aerosp Med Hum Perform. 2018; 89(7):648–656.
Recurrent On-Duty Sleepiness and Alertness Management Strategies in Long-Haul Airline Pilots
Authors: Sallinen Mikael , Åkerstedt Torbjörn , Härmä Mikko , Henelius Andreas , Ketola Kimmo , Leinikka Marianne , Kecklund Göran , Sihvola Maria , Tuori Antti , Virkkala Jussi , Puttonen Sampsa
Published: June 2018

INTRODUCTION: We examined whether long-haul airline pilots without recurrent on-duty sleepiness obtain more prior sleep and use more effective in-flight alertness management strategies than their colleagues with recurrent on-duty sleepiness.METHODS: There were 51 pilots
who flew at least twice from Helsinki to Asia. Of them, 44 flew at least twice back to Helsinki following 1 local night. On-duty sleepiness was measured by the Karolinska Sleepiness Scale (KSS), alertness management strategies by a diary, and sleep by a diary and activity monitor. Pilots who
rated KSS ≥ 7 on each, some, or none of the flights were classified as ”regularly”, “sometimes”, and “never” sleepy, respectively. This classification was performed separately for the outbound and inbound flights.RESULTS: On the outbound flights,
22% of the pilots were “never”, 54% “sometimes”, and 24% “regularly” sleepy. For the inbound flights, the respective distribution was 25%, 48%, and 27%. Compared to the “regularly” sleepy group, the “never” sleepy group obtained 54
min more night sleep prior to the outbound flights. For the inbound flights, the respective difference was 1 h 23 min. Also, the “never” sleepy pilots slept 31 min more between days off than the ”regularly” sleepy pilots. The results of the in-flight alertness management
strategies were mixed.DISCUSSION: The study demonstrates that pilots without recurrent on-duty sleepiness obtain more sleep than their colleagues with recurrent on-duty sleepiness. The result emphasizes the need to investigate whether the sleep of recurrently sleepy pilots can be
increased and whether this increase would reduce their on-duty sleepiness.Sallinen M, Åkerstedt T, Härmä M, Henelius A, Ketola K, Leinikka M, Kecklund G, Sihvola M, Tuori A, Virkkala J, Puttonen S. Recurrent on-duty sleepiness and alertness management strategies in
long-haul airline pilots. Aerosp Med Hum Perform. 2018; 89(7):601–608.