bluuebunny/crossref_metadata_2025 huggingface dataset:
A MOVE ANALYSIS OF CONFERENCE ABSTRACTS IN APPLIED LINGUISTICS - PEDAGOGICAL IMPLICATIONS FOR TEACHING AND LEARNING ENGLISH FOR ACADEMIC PURPOSES
Authors: Phuong Cao Thi Hong
Published: August 2018

This current paper presents the findings of move analysis of conference abstracts from the British Association for Applied Linguistics (BAAL). Reviewing different core perspectives of move analysis such as Biber et al. (2007); Swales (1981, 1990); Santos (1996), the paper employed suitable approaches namely Biber et al. (2007) for move identification and Santos (1996) for the analysis of moves in order to examine common linguistic features identified in the moves that are used to serve the social and communicative purpose of conference abstracts. The findings revealed that moves 1 (situating the research), 2 (presenting the research), and 3 (describing the methodology) are frequently included in the conference abstracts, whereas moves 4 (summarizing the results) and 5 (discussing the research) can be less frequent. It is concluded that this persuasive writing genre possesses 3 obligatory or strongly prototypical moves and 2 optional ones. Finally, some pedagogical implications are derived from the findings to inform further practice with regard to teaching and learning English for Academic Purposes (EAP) in second and foreign language learning contexts.
A Conserved Asparagine in a Ubiquitin Conjugating Enzyme Positions the Substrate for Nucleophilic Attack
Authors: Jones Walker M. , Davis Aaron G. , Wilson R. Hunter , Elliott Katherine L. , Sumner Isaiah
Published: August 2018

We present classical molecular dynamics (MD), Born-Oppenheimer molecular dynamics (BOMD), and hybrid quantum mechanics/molecular mechanics (QM/MM) data. MD was performed using the GPU accelerated pmemd module of the AMBER14MD package. BOMD was performed using CP2K version 2.6. The reaction rates in BOMD were accelerated using the Metadynamics method. QM/MM was performed using ONIOM in the Gaussian09 suite of programs. Relevant input files for BOMD and QM/MM are available.
EXPERIMENTAL STUDY OF NATURAL FORMS AND THE VIBRATION FREQUENCIES OF THE COMPRESSOR BLADES OF AIRCRAFT AUXULARY POWER UNIT
Authors: Belousov M. G. , Mashoshin O. F.
Published: August 2018

The article presents the results of the blades vibration studies, where the blades are rigidly fixed to the disk of the high-pressure compressor of the auxiliary power unit (APU). The task of the study is set because of the destruction of the blades cascade, which led to the APU failure. The designated APU resource was not provided. Destruction of compressor blades occurred since the introduction of gas turbine engines, but it was not always possible to comprehensively investigate the problem and completely prevent the destruction of compressor blades. Analysis of fatigue failure statistics led to the conclusion that all the blades, regardless of their size and material are destroyed in certain areas on the back, edges and tip. The relative coordinates of the crack location are approximately the same. This indicates the availability of common patterns of the blades dynamic loading and the resulting tension in them with resonance vibrations. Moreover, the availability of operational damage on the blades does not affect these patterns. However, these patterns are not fully applicable to the blades represented in this study (wide-chord, with variable thickness from the leading to the trailing edge), but they have some similarities. The study of the forms spectrum and the blade frequency vibration is the first step in solving the problem of the blades destruction. Every detail has an infinite number of frequency characteristics that form the spectrum. Each frequency of natural oscillations corresponds to its own form of vibration. The form of the vibrations is determined by the pattern of alternating displacements or deflections and the position of the nodal lines. In nodal lines the displacements are infinitely small and considered null. The displacements of the vibrating sections on different sides of the nodal lines are in antiphase. The combination of the vibration shapes forms a variety of shapes. In this study, a sand method for determining the spectrum of vibration frequencies was used. This experiment will allow to define the sectors of defects occurrence with the subsequent development of fatigue cracks and to define real dynamic loading of the given blades design.
METHODOLOGY OF ESTIMATING THE POSSIBLE APPLICATION OF SOLAR ENERGY TO PROVIDE CONTINUOUS AIR STANDING PATROL OF HIGH ALTITUDE AIRSHIP OVER THE GIVEN GEOGRAPHICAL POINT
Authors: Kovalev I. E. , Mavritsky V. I. , Redkin A. V. , Kacharava I. N.
Published: August 2018

The task solution of optimizing the parameters for an unmanned high-altitude airship and its power system in order to obtain the maximum of air standing patrol duration over a given geographic point requires an effective comparative analysis of the applicability of solar insolation as the main energy source for a power plant under various altitude, latitudinal, seasonal and wind conditions. The availability of a large number of input parameters for designing such a vehicle leads to the conclusion that it is necessary to use the universal specific energy characteristics of a high-altitude airship and its power plant to simplify the analysis and evaluation of technical solutions effectiveness. The main factor determining the power consumption of the power plant is wind flow speed in a given air standing patrol area. It is also known that solar energy is the most affordable source for long-term energy supply. In most cases, the analysis of solutions is reduced to assessing the ratio between the impact of two natural phenomena, solar energy and wind energy, on the high-altitude airship, for this purpose a simplified model of an airship was designed, which can also be applied to a solar energy airplane. In this work, the value of the available and required power per unit of the aircraft mass is selected as the main performance criteria. The available power is determined for any geographical point with the parameters of latitude, altitude and season (day of the year). The required power is determined by the flight altitude, speed and wind direction. Comparing the values of specific characteristics in space-time coordinates, it is possible to perform an effective analysis of the excess or shortage of available solar energy at a given geographical air standing patrol zone, for different altitudes and days of the year. Using the parameters related to aircraft take-off mass, we are also able to define the required dimensionality of the aircraft to carry out continuous aircraft air standing patrol at a given space point.
Estrategias y estilos de aprendizaje y su relación con el rendimiento académico en estudiantes universitarios de Psicología Educativa.
Authors: Trelles Astudillo Hilda Josefina , Alvarado Maldonado Hugo Patricio , Montánchez Torres Maria Luisa
Published: August 2018

La presente investigación tiene por objetivo asociar el rendimiento académico y las Estrategias y Estilos de aprendizaje empleados por estudiantes del segundo ciclo de Psicología Educativa de la Universidad Católica de Cuenca, de la ciudad de Cuenca, Ecuador.  A partir de un enfoque de investigación cuantitativo, se realizó un estudio descriptivo explicativo, siguiendo un diseño no experimental observacional de corte transversal en la Unidad Académica de Pedagogía, Psicología y Educación, Universidad Católica de Cuenca, en Cuenca Ecuador, durante el período octubre 2015-marzo 2016. La muestra seleccionada mediante un muestreo no probabilístico por conveniencia fue de 29 estudiantes de ambos sexos, los cuales cursan el segundo Ciclo de la carrera de Psicología Educativa. Se aplicaron los instrumentos ACRA y CHAEA para la determinación de Estrategias y Estilos de aprendizaje respectivamente.  Se realizó estadística descriptiva, inferencial y de asociación entre las variables mediante pruebas no paramétricas y de correlación. Las estrategias de aprendizaje empleadas son insuficientes, principalmente centradas en la adquisición y codificación de la información sin asociación con el rendimiento académico de las materias evaluadas. Los Estilos de aprendizaje predominantes fueron el Activo y el Reflexivo, mostrando una asociación débil con los resultados académicos de las asignaturas cursadas. La baja influencia de las estrategias y estilos de aprendizaje sobre los resultados académicos impone la necesaria contextualización de la enseñanza en función de las actitudes y aptitudes de los estudiantes con vistas a lograr un mayor rendimiento académico.
La tutoría académica y la herramienta web 2.0: podcast, en la educación superior
Authors: Sigüenza Orellana Juan Patricio , Montánchez Torres Maria Luisa , Palta Valladares Norma Isabel
Published: August 2018

En la Educación Superior, docentes y estudiantes estamos expuestos e inmersos en la cultura de la digitalización e innovación, el uso de dispositivos móviles se está convirtiendo en un requerimiento básico en la vida diaria, pero sobre todo se inmiscuyen ya en el desarrollo de los procesos de enseñanza aprendizaje, pues en la nueva sociedad de la información y comunicación todavía no hay conciencia plena de que las herramientas digitales sirven para comunicar, investigar y por qué no para la tutoría, pues se las considera todavía como instrumentos de entretenimiento. El estudio realizado es una descripción de la situación conceptual sobre las herramientas web 2.0 y la acción tutorial en la Educación Superior. Toda innovación e incorporación de la tecnología a la educación requiere de mayor difusión, divulgación, compromiso e integración, e incluso manejar de mejor manera la tutoría concibiéndola como una actividad inherente a la enseñanza aprendizaje y no como una carga eminentemente académica. En la herramienta web 2.0 se presenta el podcast como una alternativa para archivos de audio digital grabados y almacenados en audio streams, para luego ser difundidos y escuchados en cualquier parte y lugar en donde exista conectividad, y así buscar innovar y mejorar la tutoría académica.
Enfoques educativos, culturales, éticos y en valores de la Educación Inicial
Authors: Campoverde Yugcha Nancy Viviana , García Cárdenas Jessica Michelle , Guamán Lema Mayra Alejandra , Ramonez Cárdenas María Daniela , Romero Arellano Karla Ximena
Published: August 2018

Analizar los nuevos enfoques educativos, culturales, éticos y en valores de la Educación Inicial fue el objetivo general de este estudio de investigación formativa. Promover la importancia que tiene el inspirar valores a los niños desde temprana edad es, como futuros docentes de educación infantil, un reto en una sociedad multicultural e intercultural, desarrollando seres humanos respetuosos con una sociedad democrática. La metodología de este proyecto de investigación es cuantitativa y cualitativa, de carácter exploratorio y descriptivo. El instrumento utilizado es la entrevista. La población universo del Centro de Educación Inicial fue siete docentes. Todos ellos trabajan con niños de cero a tres años de edad. El instrumento contiene quince reactivos acerca de la temática en cuestión, es decir, la interculturalidad y lo que implica la implementación de la misma en la institución permitiendo verificar los conocimientos de los docentes acerca del tema y su aplicación, rigiéndose al Plan del Buen Vivir (2013-2017).Las conclusiones extraídas son las diferencias entendidas sobre la interculturalidad, multiculturalidad y pluriculturalidad por parte de los docentes y sus características comprendiendo su importancia dentro del marco del Buen Vivir. Se resalta que la interacción de los docentes con los alumnos es constante y buscan implementar en los niños diversos valores, la aceptación de diversas culturas y tradiciones a través de temas o clases especificas; sin embargo, también se pudo comprobar que como institución no cuentan con un programa explícito donde trabajen sobre los temas antes mencionados siendo un Centro Infantil donde coexisten niños de diversas provincias y nacionalidades.
Inteligencias Múltiples en el trabajo docente y su relación con la Teoría del Desarrollo Cognitivo de Piaget
Authors: Ramírez Apud López Zaira , Ramírez Apud López Tammara
Published: August 2018

En este artículo, se hace una revisión teórica sobre el concepto de Inteligencia, aterrizando en las Inteligencias Múltiples de Gardner (1997) y su asociación con la Teoría del Desarrollo Genético de Piaget (1968), con la finalidad de establecer una propuesta que relaciona las inteligencias de acuerdo con las características de Piaget y que éstas, a su vez, respondan a las inteligencias que deben tener los docentes que se encuentran desempeñándose en el Nivel Inicial y Educación General Básica. En este documento se relacionan las Inteligencias que requieren los docentes dependiendo en nivel educativo en el que participan, donde las inteligencias se clasificaron de acuerdo con las características que Piaget propone en su Teoría del Desarrollo Cognitivo, con base en las edades de los niños que cursan la Educación Inicial y la Básica. La propuesta va encaminada a los docentes que se dedican a trabajar con niños de Educación Inicial y Educación Básica. El análisis busca asociar las inteligencias que pueden apoyar a los docentes dependiendo las características cognitivas de los niños, planteadas por Piaget en su Teoría de Desarrollo Genético, y asociadas a las Inteligencias Múltiples de Gardner.
New Steganography System Based on Huffman Coding and Fibonacci Decomposition
Authors: Abu-Almash Fadheela Sabri
Published: August 2018

Hiding secret information in the image is a challenging and painstaking task in computer security and steganography system. Certainly, the absolute intricacy of attacks to security system makes it more attractive.in this research on steganography system involving information hiding,Huffman codding used to compress the secret code before embedding which provide high capacity and some security. Fibonacci decomposition used to represent the pixels in the cover image, which increase the robustness of the system. One byte used for mapping all the pixels properties. This makes the PSNR of the system higher due to random distribution of embedded bits. Finally, three kinds of evaluation are applied such as PSNR, chi-square attack, and HVS attack.
E-Government Public Cloud Model (EGPCM)
Authors: Al-Hakkak Nada M. , Shukur Ban Salman , Shaker Atheel Sabih
Published: August 2018

The concept of implementing e-government systems is growing widely all around the world and becoming an interest to all governments. However, governments are still seeking for effective ways to implement e-government systems properly and successfully. As services of e-government increased and citizens’ demands expand, the e-government systems become more costly to satisfy the growing needs. The cloud computing is a technique that has been discussed lately as a solution to overcome some problems that an e-government implementation or expansion is going through. This paper is a proposal of a  new model for e-government on basis of cloud computing. E-Government Public Cloud Model EGPCM, for e-government is related to public cloud computing.
Robust Watermarking Scheme for GIS Vector Maps
Authors: Gaata Methaq Talib
Published: August 2018

With the fast progress of information technology and the computer networks, it becomes very easy to reproduce and share the geospatial data due to its digital styles. Therefore, the usage of geospatial data suffers from various problems such as data authentication, ownership proffering, and illegal copying ,etc. These problems can represent the big challenge to future uses of the geospatial data. This paper introduces a new watermarking scheme to ensure the copyright protection of the digital vector map. The main idea of proposed scheme is based on transforming  the digital map to frequently domain using the Singular Value Decomposition (SVD) in order to determine suitable areas to insert the watermark data. The digital map is separated into the isolated parts.Watermark data are embedded within the nominated magnitudes in each part when satisfied the definite criteria. The efficiency of proposed watermarking scheme is assessed within statistical measures based on two factors which are fidelity and robustness. Experimental results demonstrate the proposed watermarking scheme representing ideal trade off for disagreement issue between distortion amount and robustness. Also, the proposed scheme shows  robust resistance for many kinds of attacks.
Histopathological Effect of Zinc Oxide Nanoparticles on Kkidney and Liver Tissues in Albino Male Mice
Authors: Salman Ruqayah Ali
Published: August 2018

Objective: The present study investigated the effects of different dose levels of Zinc oxide Nanoparticles (ZnO NPs) on the liver and kidney tissues in albino male mice. Methadology: ZnO NPs was administrated as a daily oral dose of (150, 350 mg/kg body weight) gavage for 2 weeks. Eighteen male mices were used by dividing them into three groups. Result: Histopathological examination of kidney and hepatic tissues treated with ZnO NPs showed toxicity changes compared with control group. Conclusion:This study demonstrated the ability of ZnO NPs to affect on kidney and liver tissues. Recommendation: More study needed to know the effect of different doses of nanoparticles on human health.
Effect of Thyroid Disorder in Polycystic Ovarian Syndrome in the Women of Diyala Province
Authors: Abdulmajeed Alzahraa Ibrahim
Published: August 2018

Background: Polycystic ovarian syndrome (PCOS) is the most endocrine disorder common effect (5-10) % in women at reproductive age. Thyroid dysfunction with PCOS is both representing parts of the endocrine system; this link leads to problems of ovulation and pregnancy.  Aims: to investigate the prevalence of thyroid disorder in PCOS woman, and associate the outcome with obesity. Patient and method: This study was conducted in Al-batol Teaching Hospital in Baquba City /Iraq. The results reviewed included 63 women: 45 PCOS were diagnosed on the basis of Rotterdam criteria, 18 as control, aged 17- 44 year. The samples have been collected at second day of menstrual cycle, to test fT3, fT4, fTSH in serum. Information was collected for (Age, BMI, LH, and FSH) to be part of this study. Results: A significant increasing in fT3 was found in PCOS women comparison with control pvalue>0.05. T3 showed in significant differences between lean PCOS matched against control Pvalue < 0.05, along with statistically increasing of TSH level in (lean, overweight) PCOS comparison with control pvalueË‚0.05. Conclusion: PCOS is associated with hypothyroidism. Obesity or overweight is a key factor leads to increased risk of thyroid disorder.
Physiochemical and Antibacterial Studies of Two Tetradentate Ligands Type (N2O2) and Their Complexes withCoII, NiII and ZnII Ions
Authors: Hasan Hasan A. , Salman Khaled
Published: August 2018

Two tetradentate ligands type (N2O2) and their complexes with CoII, NiII and ZnII ions were synthesized via two steps; in the first, the precursors W1 and W2 were synthesized from the reaction of  2,6-diamine pyridine or 2,4-diamine tolylene with 2,5-hexanedione respectively in a 2:1 mole ratio. In the second step the ligands [H2L1] and [H2L2] were prepared from the reaction of the two precursorâ€™s with 2-hydroxy-1-naphthaldehyde in 1:2 mole ratio. Metal complexes were synthesized by the reaction of the ligands with equivalent amounts of the metal chloride. The prepared compounds were characterized with the physiochemical and spectral techniques which confirmed tetrahedral structure around the metal ions. The antibacterial activity of the ligands and complexes were screened.
Two Derivative Spectrophotometric Methods for the Simultaneous Determination of 4-AminoAntipyrine in Presence of Its Acidic Products
Authors: Abbas Ruba Fahmi
Published: August 2018

Simple, economic and sensitive mathematical spectrophotometric methods were developed for the estimation 4-aminoantipyrine in presence of its acidic product. The estimation of binary mixture 4-aminoantipyrine and its acidic product was achieved by first derivative and second derivative spectrophotometric methods by applying zero-crossing at (valley 255.9nm and 234.5nm) for 4-aminoantipyrine and (peak 243.3 nm and 227.3nm) for acidic product. The value of  coefficient of determination  for the liner  graphs were  not less than 0.996 and the recovery percentage were found to be in the range from 96.555 to 102.160. Normal ratio spectrophotometric method 0DD was used 50 mg/l acidic product as a divisor and then measured at 299.9 nm with correlation coefficient 0.998 and limit of detection 0.04098. ratio derivative methods 1DD and 2DD; are based on measuring the first derivative and second derivative for normal ratio spectrum at (peak 290.7 nm and valley 310 nm) for 1DD and(peak 286, valley 301 and peak 316nm) for 2DD the correlation coefficient for linearity graph not less than 0.997 and the recovery percentage were found to be in the range from 99.64 to 100.11.
Determination of the Degree of Consumption (DoC) of Lube Engine Oils Using Fluorescence Spectroscopy
Authors: Abdul Kareem Rawnaq Qahtan , Al-Janabi Khalid W. Salih
Published: August 2018

The accreditation of a fast, inexpensive, and simple way to discriminate between different kinds of oils and their efficacy â€œdegree of consumption (DoC)â€ has been developed. The fluorescence spectroscopy provides a reliable method for oil inspection without resorting to tedious separation.

Different new and used oil samples available in the local Iraqi market were investigated. While the challenge is to build a directory containing data of all the oils available in the local market. This method expected to control the falsified (forged) trademarks of motor oils and to discriminate between different oils.

The excitation-emission spectra of oil samples were determined in the range of 200 â€“ 600 nm. The effect of the presence of trace metals on the ï¬‚uorescence intensity of oils was considered by adding few milligrams of (Cu, Al, Fe) to the diluted oil solution. No major effect noticed on ï¬‚uorescence intensity.

The research suggests installing a simple Spectrofluorometer into vehicles to check the DoC of the oil regularly and to notify the driver exactly when to replace the engine oil.

The obtained results indicate the applicability to execute such gadget to be installed in the vehicles for routine detection of the engine oil quality and its degree of consumption DoC. As well as demonstrate the potential of the technique in oil identification and could be further developed.
Gastric Cancer and Epstein-Barr Virus Infection
Authors: Barukčić Ilija
Published: August 2018

Background: Epstein-Barr virus (EBV) has an important role in the oncogenesis of several malignant diseases. Reports even demonstrated the presence of Epstein-Barr virus in gastric carcinoma (GC). However, the pathogenic role of EBV in GC is uncertain. The present investigation was carried out to investigate a possible causal relationship between GC and EBV.

Statistical Analysis: The method of the conditio sine qua non relationship was used to proof the hypothesis whether gastric cancer is a necessary condition (a conditio sine qua non) of the presence of EBV in human gastric tissues. In other words without GC no EBV in human stomach. The mathematical formula of the causal relationship k was used to proof the hypothesis, whether there is a cause effect relationship between gastric cancer and EBV. Significance was indicated by a p-value (two sided) of less than 0.05.

Results: In toto 26 ISH based studies with a sample size of N = 11860 were re-analyzed. All the studies analyzed support the null-hypothesis without GC no EBV positivity in human stomach. In other words, gastric cancer itself is a conditio sine qua non of EBV positivity in stomach tissues while the cause effect relationship between gastric cancer and EBV was highly significant.

Conclusions: Epstein-Barr virus is neither a cause, nor the cause of human gastric cancer.
KAJIAN MAKNA NGGAHI DANA DAN MAKKA PADA BUDAYA PENYAMBUTAN TAMU-TAMU BESAR DI DOMPU
Authors: Suryaningsih Lili , Rusdiawan Rusdiawan , Nuriadi Nuriadi
Published: August 2018

The purposes of this study are to describe the meaning of nggahi funds and makka,  a tradition to welcome honored guests in Dompu and to identify meanings in the nggahi and makka in the recent social values.  The tradition was derived from the indigenous local cultures that currently was retained as one of the folklore so that the researchers approached using the ethnographic study. Three informants were interviewed, tradition ceremony to welcome guests was observed records were analyzed, and introspection was conducted.   Analyses were done based on the verbatim transcripts of the traditions.  The study revealed that four symbols apply in the nggahi fund traditions and two in makka having connotative and denotative meaning.  Guests are greatly appreciated and served in high honors.  Values as the Islamic teaching denote are embedded in the social interations in the nggahi and makka.
Caracterización de las Comunidades Vegetales de la Reserva Natural Rincón de Santa María (Ituzaingó, Corrientes) y el impacto de la Represa Hidroeléctrica Yacyretá sobre ellas
Authors: Montiel M. del R , Gatti M. G. , Fontana J. L. , Zanone I. , Zaninovich S. C.
Published: August 2018

La Reserva Natural Rincón de Santa María (RNR SM) fue creada con el objeto de compensar la pérdida de ambientes naturales ocasionada por el llenado del embalse al construir la Represa Yacyretá. Durante muchos años, las distintas actividades humanas dentro del área de la Reserva ocasionaron que las distintas comunidades vegetales originales cambiaran continuamente de aspecto y estructura, e incluso desaparecieran en algunos sectores al quedar submersos por el aumento del volumen de agua retenido por la presa. Actualmente, se encuentran pajonales y espartillares que están siendo afectados por invasiones de especies exóticas, y algunos individuos agrupados de especies arbóreas. Sin embargo, los bosques de ribera que existían, se han perdido completamente. En este trabajo se estudiaron las características de las comunidades vegetales presentes en la RNR SM, su ubicación y estado actual, con el fin de responder al interrogante sobre cómo debería ser el ecosistema natural de la Reserva, si no hubiera sufrido perturbaciones antrópicas, para así poder implementar planes de manejo y Restauración. Además, se cuantificó la pérdida de superficie de la Reserva, correlacionada con el aumento del embalse. Se partió de la hipótesis de que antes de la influencia humana, en la RNR SM existía un mosaico de vegetación formado por bosques, con características transicionales entre el bosque mesófilo y el higrófilo, junto con pajonales y espartillares. Hasta el año 2011, sobre el límite NE de la reserva, se podían encontrar isletas de bosque (11 ha). Sin embargo, luego del llenado definitivo del embalse Yacyretá en ese año, estos relictos se perdieron en su totalidad. Desde el año 2004 a la fecha, se perdieron 1421,69 ha. En la actualidad, la RNR SM presenta una predominancia de Pajonales de Andropogon lateralis y A. virgatus, seguidos de Plantaciones abandonadas de P. elliottii, Espartillares de Elyonurus muticus y Plantaciones abandonadas de Eucalyptus sp.
Influencias del embalse de Yacyretá sobre los ecosistemas costeros
Authors: Fontana José Luis
Published: August 2018

La formación del embalse de la represa de Yacyretá (valle del río Paraná en las provincias de Corrientes y Misiones) determinó profundos cambios en los ecosistemas que ocupaban el valle de inundación. Con el llenado en 1994 desaparecieron unas 50.000 ha de bosques higrófilos y pajonales, más unas 300 islas con humedales, superficie que superó las 100.000 ha a cota 83 msnm. La elevación del embalse impactó sobre el régimen de agua del suelo, que se tradujo en cambios sucesionales y de sustitución en los ecosistemas costeros: fragmentos ahogados, nuevas superficies de pajonales higrófilos, invasión secundaria del bosque por elementos de la selva riparia y daños severos en especies mesófilas. La identificación de las etapas de sucesión en distintos momentos de la historia del embalse permite predecir posibles cambios bajo nuevas modificaciones del nivel de aguas y su aplicación a otros emprendimientos hidroeléctricos regionales. La predicción de estos cambios ayudará a la aplicación de acciones preventivas que impidan la pérdida de biodiversidad y de ecosistemas.
Articulación “la universidad y la escuela secundaria”: interaccion GER-Escuela tecnica Fray Luis Beltran
Authors: Palacios W. , Pelero E. , Galarza F. , Ojeda K. R. , Aguirre Nicolás de Jesús , Escalante E. G. , Rodríguez A. , Fleitas G. , Busso A. , Vara N. , Caceres M.
Published: August 2018

El presente trabajo describe de manera breve el resultado de las actividades de becarios del grupo Grupo en Energías Renovables de la FaCEN A y alumnos y profesores de la escuela técnica Fray Luis Beltrán, llevadas a cabo en el marco de la Articulación entre la Universidad y la Escuela Secundaria. En este contexto, se ha logrado presentar con éxito un auto eléctrico que incorpora un sistema de carga de baterías mediante generación solar fotovoltaica. El mismo ha pasado dos instancias del certamen TécnicaMente, resultando seleccionado para la Instancia Nacional en la ciudad de Salta. Asimismo, se capacitó a alumnos del área electrónica en la aplicación de tecnología Arduino e implementación de red tipo mesh con módulos Zigbee como elementos de enlace. Por último, se presentó además ante el INET , un proyecto institucional para la instalación de un sistema fotovoltaico conectado a red para capacitar técnicos calificados en este tipo de tecnologías.
Análisis y reestructuración del programa de una materia universitaria, bajo el enfoque de formación de competencias profesionales
Authors: Romero Lucrecia Natalia
Published: August 2018

Este artículo propone la revisión de los programas vigentes de las materias universitarias, a la luz del enfoque de la formación basada en competencias profesionales.

 
Instrumento autónomo para la medición, visualización y almacenamiento de variables climáticas
Authors: Vera L , Cuestas C , Firman A , Cáceres M , Busso A
Published: August 2018

En este trabajo se presenta el diseño, implementación y calibración de un medidor portátil de irradiancia, PAR, temperatura y humedad, así como de todos los componentes que forman parte del sistema. El instrumento ha sido desarrollado en el Grupo en Energías Renovables (GER ) de la Universidad Nacional del Nordeste. El mismo contiene sensores digitales que le permiten medir la temperatura ambiente, humedad relativa y sensores analógicos para determinar el valor de la irradiancia y PAR. Es portable, posee una autonomía de 5 (cinco) días, una pantalla para mostrar las variables medidas y es capaz de registrar datos en una tarjeta SD cumpliendo con la función de datalogger. Conjuntamente se ha desarrollado un software para la lectura y representación en un display de las magnitudes medidas en función del tiempo. En esta etapa de la investigación se cuenta con un prototipo funcional calibrado en etapa de pruebas experimentales finales.
Estrategias innovadoras para favorecer el ingreso y la permanencia en carreras STEM
Authors: Dapozo Gladys N. , Greiner Cristina L. , Petris Raquel H.
Published: August 2018

Los profesionales formados en disciplinas STEM (Ciencia, Tecnología, Ingeniería y Matemáticas) utilizan sus conocimientos para entender cómo funciona el mundoy resolver problemas, utilizandocomputadoras y otras herramientas tecnológicas. La problemática que se plantea a nivel mundial es una marcada disminución de estudiantes en estas carreras, y escasez de recursos humanos calificados, cuando paradójicamente son altamente demandados. En este trabajo se presenta una reseña de los esfuerzos institucionales que se realizan para apoyar a los ingresantes de las carreras STE M que se ofrecen en esta unidad académica y se describe una experiencia innovadora de incorporación de herramientas lúdicas como modalidad de aprestamiento para los ingresantes a la carrera Licenciatura en Sistemas de Información de la Universidad Nacional del Nordeste. Los resultados indican que la experiencia fue positiva para la comprensión de los conceptos propios de la asignatura, dándose además una leve mejoría en el desempeño de los alumnos.
Determination of the effect of some pesticides on honey bees
Authors: KARAHAN Ahmed , KUTLU Mehmet Ali , KARACA İsmail
Published: August 2018

Although the bee deaths that started in 2006 have
passed for a long time, no solution has been found and even bee deaths have
started to increase again in recent years. The end of winter and spring months
are periods when bee deaths are seen intensely. When these periods are
examined, it can be seen that many factors (disease-harmfulness, hunger, cold,
etc.) cause bee deaths. One of these factors is the pesticides used in
springtime in the wintering region. In this study, the effects of pesticides,
which are commonly used against factors damaging agricultural crops grown in
regions where bee deaths is high, on the body motor movements of the bees are
investigated. The most commonly used product used for agricultural combat in
pesticides used in our study and the label dose (recommended dose) used for
this product was fed twice with the label dose and half by oral gavage, after
1, 4 and 24 hours, the bees were checked and some of the body parts (antenna,
leg, abdomen and mouth parts) were rated according to motor movements. As a
result of the study, pesticides affecting body motor movements of bees are
listed as Chlorpyrifos-Ethyl, Imidacloprid, Deltamethrin, Thiacloprid,
Acetamiprid, Abamectin and Tau-fluvalinate active substances from high to low.
Spirodiclofen, Glyphosate Potassium Salt, and Penconazole active substance
chemicals arranged in the same group with control and did not changed their
body motor movements.
La escena urbana como estrategia apostólica. Un aporte trunco de la Compañía de Jesús para Montevideo.
Authors: Levinton Norberto
Published: August 2018

La idea de este trabajo es que la Compañía de Jesús implementó el proyecto de una iglesia y colegio para Montevideo en un lugar preferencial con el objetivo de poner en valor la identidad cultural de los vecinos e incorporarlos a una vida cristiana “para mayor gloria de Dios”. La elección del sitio dando marco a la plaza principal y enfrente del cabildo constituyó, desde nuestro punto de vista, una estrategia apostólica. Para sustentar esta conceptualización analizaremos el proyecto arquitectónico propuesto, el perfil cultural de los vecinos y la estructura de la ciudad. Para ello incluiremos este diseño arquitectónico comparativamente dentro de una serie de proyectos y obras del mismo coadjutor arquitecto de la Compañía de Jesús, incursionaremos en la arquitectura mudéjar canaria y daremos cuenta de la traza urbana tomando como referencia una pintura realizada algunos años después.
La autobiografía del P. Diego de Boroa
Authors: Lovay Silvana M.
Published: August 2018

Los jesuitas impulsaron el género biográfico con dos fines particularmente precisos, uno motivado por las continuas críticas a la Compañía de Jesús y otro muy importante, el de dar a conocer y poner en relevancia a sus miembros como modelos de santidad, de virtud y de piedad, conformando de este modo un rico acervo documental. En este caso trabajamos una autobiografía, como documento poco usual, particularmente en la provincia del Paraguay. Nos referimos a un relato de su propia vida, escrita por el P. Diego de Boroa, quien hace un detallado recorrido de su andar, desde la infancia hasta su ingreso a la Orden, donde podremos no solo conocer sobre su opción cristiana, sino poner en valor su devoción y su dedicación manifiesta en el otro, descubriendo de este modo su real vocación por los excluidos, mundo en el que se siente uno más entre de ellos.
Para la propagación de la Fe, para el servicio del rey, y utilidad de sus estados y vasallos. Proyecto anónimo para la instalación de una misión en las Islas Malvinas alrededor de 1766.
Authors: García Insausti Joaquín
Published: August 2018

En este artículo se analiza brevemente un documento anónimo en el cual se exponen los beneficios que conllevaría la instalación de una misión y un establecimien-to naval en las Islas Malvinas. Dos son los ejes sobre los que se centró el análisis de dicho proyecto. El primero aborda el fuerte contenido geopolítico del mismo, coherente con las reformas promovidas por la Corona. Mientras que el segundo indaga sobre el complejo aparato crítico que le sirve de apoyatura, el cual da cuenta la vasta red infor-mativa a la que tenía acceso el autor como miembro de la Compañía de Jesús.
A idea de Comunidade universal em Francisco Suárez
Authors: Calafate Pedro
Published: August 2018

Estudamos o modo como Suárez aprofundou uma tradição decisiva para fortalecer a ideia de comunidade universal de natureza supraestatal, assente em regras morais superiores à soberania dos estados, tendo como fundamento a dignidade da pessoa humana, a unidade do género humano, o bem comum universal e a igualdade natural das soberanias do orbe, tanto do ponto de vista do domínio de jurisdição como no de propriedade, suportada por conceções democráticas sobre a origem do poder civil. Visava-se, assim, um conceito de comunidade não meramente internacional, mas propriamente universal, ao mesmo tempo que se proclamava a legitimidade das soberanias indígenas no Novo Mundo, porque o poder civil não radicava na fé ou na caridade mas sim na razão natural e na sociabilidade dos homens.
Joel Santos Ramírez (2015). Las misiones jesuíticas de Sinaloa. Pasado y presente de los monumentos históricos de Sinaloa. México, Instituto Nacional de Antropo-logía e Historia-Sinaloa, 224 pp., ISBN 978-607-8039-62-3.
Authors: López Castillo Gilberto
Published: August 2018

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Erva mate em debate: Federico Borromeu, jesuítas e médicos
Authors: Massini Marina
Published: August 2018

O trabalho aborda o processo de circulação e transmissão de saberes acerca da erva mate, iniciado pela correspondência epistolar entre Federico Borromeu, Cardeal da cidade de Milão, o missionário jesuíta Diego de Torres Bollo e outros informantes da Companhia, e o médico milanês Iacopo Antonio Clerici. Focam-se diferentes modalidades de apropriação das informações recebidas da America Latina, em conformidade ao universo cultural e religioso dos receptores.
La relación del jesuita José Mazo sobre la segunda toma de Colonia de Sacramento (1704-1705)
Authors: Barrabino Martín
Published: August 2018

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Improvement of health preservation system for Kazakhstan Republic workers within «Kazakhstan–2050» strategy
Authors: Khamitov T. N. , Smagulov N. K.
Published: August 2018

The article covers main principles of improvement of health preservation system forKazakhstanRepublicworkers within «Kazakhstan–2050» strategy. In 2015, economically active population reached 9 million people, economic activity level equaled 71.7%. Share of workers subjected to hazardous and unsafe work conditions is 22.2%. Maximal shares of workers subjected to hazardous and unsafe work conditions are seen in mining and processing industries. Legal documents were specified inKazakhstanto provide medical care for occupational diseases and for patients’ rights protection. In 2015, Kazakhstan Republic Law set «examination of disease connection with workers’ occupational activities». Main directions of workers’ health care improvement inKazakhstanRepublicare presented.
Influence of chemical load on cardiovascular system in Aral sea region inhabitants
Authors: Mashina T. F. , Battakova Sh. B. , Otarbayeva M. B. , Shaуkenov D. S. , Shokabayeva A. S. , Kozlova S. N. , Kisapov B. G.
Published: August 2018

An important objective of environmental hygiene is to minimize consequences of technogenic and anthropogenic factors influence, that necessitates evaluation of their toxic properties including prenosologic and long-term mutagenic and carcinogenic effects. Human body pollution due to intake of subliminal but longstanding exotoxins decreases human resources, can cause various diseases and lower health of population. The article presents results of study concerning inhalation dose load of chemicals on cardiovascular system inAral searegion dwellers. The study covered 6984 individuals. Based on the models established, the authors revealed that such metals as nickel and zinc decrease myocardial contractility.
Search for associations of polymorphic variants of nucleotide excision repair genes with the increased risk of bronchopulmonary pathology in workers of hazardous and dangerous industries
Authors: Andrushchenko Т. A. , Goncharov S. V. , Dosenko V. Е.
Published: August 2018

The study covered workers of asbestos cement plants and miners (n = 214). Polymerase chain reaction method in real time helped to identify genotypes of genes XPD (rs13181, rs799793) and ERCC1 (rs11615).

The study results prove that XPD*C/C genotype is associated with bronchopulmonary disease risk (p≤0.02, χ2=4.97; OR=2.40; 95% CI: 1.03–5.64).Carriers of XPD*A/C genotype appeared to have relative resistance to bronchopulmonary diseases risk (χ2=3,52, р≤0,06; OR=0,57; 95%CI: 0,30–1,07).
Biological risk factor of occupational morbidity with tuberculosis among medical professionals
Authors: Pasechnik O. A. , Plotnikova O. V. , Stasenko V. L. , Dymova M. A.
Published: August 2018

The article presents molecular genetic characteristics of M. tuberculosis circulating in Omsk region, as a biologic risk factor of tuberculosis morbidity among medical institutions workers. The authors used descriptive method of epidemiologic study, method of MIRUVNTR-typing of M. tuberculosis DNA. Findings are M. tuberculosis stains of Beijing genotype with VNTR-profile 233325173533424, isolated out of tuberculosis patients cluster being under stationary treatment. 65.2% of the stains had multiple drug-resistance to anti-tuberculosis medications. Respiratory tuberculosis was diagnosed in 85.4% of the cases, extra-pulmonary tuberculosis (urinary system, peripheral lymph nodes, eyes, CNS tuberculosis) equaled 14.6%. Nearly 30% of tuberculosis cases in the health care workers were associated with the bacterioexcretion.
Hormonal profile assessment in third generation inhabitants living near Semipalatinsk test site
Authors: Namazbaeva Z. I. , Tsvetkova E. V. , Sabirov Z. B. , Sembaev Zh. H.
Published: August 2018

Results of a study covering population of Maisk settlement near Semipalatinsk test site demonstrated possible thyroid diseases in 32.6% of the examinees. Predisposition to autoimmune diseases of thyroid gland (presence of antibodies to thyroid peroxidase) was revealed in 23% of the population. Increased production of stress hormone (cortisol) is characteristic for 39.4% of the females and 37.7% of the males — that is confirmed by changes in the body adaptation system of the third generation inhabitants, if ionizing radiation influence on the previous generations.
VERTEX ORDERING OPTIMIZATION
Authors: Nguyen Thinh D.
Published: August 2018

We show that ordering vertices of a graph subject to some objective function is a difficult task.
Temporal stability of sexual excitation and sexual inhibition in women
Authors: Velten Julia , Zahler Lisa , Scholten Saskia , Margraf Jürgen
Published: August 2018

The dual control model of sexual response proposes two factors, sexual excitation (SE) and sexual inhibition (SI), that aim to predict sexual behavior and response. While SE and SI are described as stable traits that influence sexuality-related outcomes such as sexual function or sexual risk-taking, only few studies have presented data on the stability of these factors. The aim of this study was to evaluate the temporal stability of SE and SI, and to investigate whether changes in sexual function or partnership status influence SE and SI in a longitudinal sample of women. To address these research questions, the Sexual Excitation/Sexual Inhibition Inventory for Women (SESII-W) was administered five times over the course of four years. The SESII-W includes two main scales of SE and SI which consist of five (Arousability, Partner characteristics, Sexual power dynamics, Smell, and Setting) and three subscales (Concerns about sexual function, Arousal contingency, Relationship importance), respectively. Data from 553 women (Mage = 31.38, SD = 10.25, Range = 18 – 67) who participated in at least two assessment points were included in this study. Bivariate correlations between baseline and the fifth follow-up assessment indicated a high temporal stability of SE and SI in women (.47 < r < .71). A series of generalized linear models was conducted to investigate the impact of time, changes in sexual function, partnership status, and changes in partnership status on SE and SI. Partner characteristics (SE) was the only scale that showed small increases over time. Across different subscales, improvements in sexual function were associated with higher SE and lower SI. Changes in partnership status and partnership status itself were predictors of one SE- and three SI-related scales. This study suggests a relatively high temporal stability of SE and SI in women and supports the dual control model’s assertion that both factors are stable individual traits. Certain life events such as a new partnership or sexual difficulties may, however, impact time stability of both factors.
PWM as a Low Cost Method for the Analog Control of MEMS Devices
Authors: Pollock Corey , Barrett Lawrence , del Corro Pablo G. , Stange Alexander , Bifano Thomas G. , Bishop David J.
Published: August 2018

In this paper we discuss the use of pulse width modulation (PWM) to control analog MEMS devices. We achieve precise linear analog control of MEMS by applying a PWM signal with a frequency well above the system's mechanical natural frequency. We first demonstrate this using a parallel plate actuator and comb-drive, then extend the technique to control a commerical deformable mirror. Such an approach allows the system designer to replace expensive drive electronics such as high precision DACs and high voltage, linear amplifiers with a simple on-off switch. Advancements in the electronics industry tend to make precise timing cheaper and faster; our approach exploits these long term trends to create low cost control circuits. We also show how PWM control can linearize the positional response of devices where typically the position would depend quadratically on the applied, analog voltage.
Analisis Kelayakan Ekonomi Usahatani Padi Sawah di Kecamatan Pamona Puselemba
Authors: MAMONDOL MARIANNE REYNELDA
Published: August 2018

Penelitian ini bertujuan untuk mengetahui kelayakan ekonomi usahatani padi sawah di Kecamatan Pamona Puselemba. Indikator kelayakan ekonomi yang digunakan ialah pendapatan usahatani, R/C Ratio, π/C Ratio, BEP penerimaan, BEP produksi, BEP harga, dan batas aman penurunan harga produk. Pengumpulan data dilakukan dengan cara survey, meliputi observasi, wawancara, dan pengisian kuisioner. Sampel penelitian ditentukan melalui teknik purposif sampling. Data dianalisis dengan menggunakan analisis pendapatan, analisis R/C Ratio, analisis π/C Ratio, analisis BEP, dan analisis perubahan harga. Hasil penelitian menunjukkan bahwa usahatani padi sawah di Kecamatan Pamona Puselemba dengan luas tanam sebesar 1 ha pada umumnya memiliki kelayakan secara ekonomi. Rata-rata pendapatan usahatani ialah sebesar Rp 19.328.170/ha/MT, rata-rata nilai R/C Ratio 2,62, rata-rata nilai π/C Ratio 161,65 %, rata-rata BEP penerimaan Rp 4.473.192,63, rata-rata BEP produksi 612,40 kg, rata-rata BEP harga Rp 3.377,55/kg, dan rata-rata batas aman penurunan harga beras sebesar 55,88 %. Tingkat produksi, harga jual beras, dan efisiensi biaya produksi merupakan faktor-faktor yang mempengaruhi tingkat kelayakan ekonomi usahatani padi sawah. Produksi yang lebih besar, harga jual beras yang lebih tinggi, dan biaya produksi yang efisien akan meningkatkan kelayakan ekonomi usahatani.