bluuebunny/crossref_metadata_2025 huggingface dataset:
Factors that promote Progression in Schools Functioning as a Professional Learning Community
Authors: Leclerc Martine , Moreau Andre C. , Dumouchel Catherine , Sallafranque-St-Louis François
Published: July 2017

The purpose of this research is to identify factors that influence the functioning of a school working as a Professional Learning Community (PLC) and to analyze the links between these factors and the school’s progression. This research was developed within the context of an interpretative research paradigm. The primary data collection tool employed is a one-hour semistructured interview with each participant, thus allowing researchers to identify each participating school’s level of development as a PLC and clarify the underlying factors that have a positive effect on this type of functioning. The interview plan, composed of themes relevant to this research project, is structured according to the Seidman model (1998). The schools were classified according to the three stages of development identified in the Professional Learning Communities Observation Grid (PLCOG) from Authors (2009a), namely the initiation, implementation, and integration stages, using the seven indicators found in the professional literature. This study suggests certain dominant factors, particularly for schools in the initiation and integration stages. Recommendations are presented to better assist school administrators in supporting their teaching staff as a PLC.
Collaborative Learning in a Boundary Zone: A Case Study of Innovative Interinstitutional Collaboration in Israel
Authors: Tabak Edith , Margolin Ilana
Published: July 2017

This qualitative study focused on the collaboration between a school district and a college of education in Israel and aimed to explore how the participants created common understanding in order to promote educational change. The theoretical approach involved analyzing the institutional interconnections based on boundary practices and boundary objects and the ways these interconnections shaped the collaborative learning process, promoted educational change, and fostered educational leadership in the district and in the college. The study observed the formation of a community of practice within the boundary zone, which was developed over a three-year period by a group of 20 superintendents, the district head, and two teacher educators. Beyond concrete outcomes, such as improvement of pupils' scores on the state-mandated achievement tests, the study showed a transformation in the superintendents' perception of their roles and a cultural change in the district.
School Mental Health: The Impact of State and Local Capacity-Building Training
Authors: Stephan Sharon , Paternite Carl , Grimm Lindsey , Hurwitz Laura
Published: July 2017

Despite a growing number of collaborative partnerships between schools and community-based organizations to expand school mental health (SMH) service capacity in the United States, there have been relatively few systematic initiatives focused on key strategies for large-scale SMH capacity building with state and local education systems. Based on a framework of ten critical factors for capacity building, as well as existing best practices, two case studies were utilized to develop a replicable capacity-building model to advance interagency SMH development. Seventy education and mental health stakeholders from two selected states participated in baseline assessments of skill com-petency and critical factor implementation followed by two-day trainings (one in each state); 29 (41%) of the participants also completed a six month follow-up assessment. Targeted competencies increased significantly for participants from both states, with large effect sizes (d = 2.05 and 2.56), from pre- to post-training. Participant reports of critical factor implementation increased significantly for one of the two states (t[15] = -6.40, p < .001, d = 1.77). Results inform specific training recommendations for stakeholders and collaborative teams, as well as policy implications to support future development of SMH service capacity.
Educational Leadership and a Comprehensive Reform for Improving Underrepresented Urban Students’ College Access
Authors: Yavuz Olcay
Published: July 2017

Disparities in college access for underrepresented urban students are one of the most urgent educational problems of America’s education system. In response to growing national concern, this longitudinal study investigated how school leaders worked collaboratively with key stakeholders to implement research-supported student services in order to improve college access for underrepresented urban students. The quantitative investigation showed that when educational leaders and key stakeholders worked collaboratively to deliver comprehensive student services, urban students in a high-poverty school district experienced measurable benefits in terms of their college enrolment. This study may be of particular value to policymakers, school leaders, and educators concerned with the low college access rates of students in urban schools, as well as to those who are seeking to understand what works betterto prepare urban students for post-secondary education.
Are Leaders Influenced by Advocates in the Special Education Eligibility Decision?
Authors: Kirkland Erin B , Bauer Scott C
Published: July 2017

The purpose of this study was to investigate the influence of private practitioner and educational advocate opinions on instructional leaders’ decision-making thought processes when making a recommendation for special education eligibility. School-based administrators (N = 56) with varying years of experience as a special education administrator participated in this study. Using data from a series of vignettes and from structured interviews, results indicated that private practitioners and educational advocates significantly influence administrators’ recommendations for special education eligibility.
School Reform: America’s Winchester Mystery House
Authors: Meyer David Daniel , Werth Loredana
Published: July 2017

This quantitative study examines the correlation between international student achievement test outcomes and national competitiveness rankings. Student achievement data are derived from a variation-adjusted, common metric data set for 74 countries that have participated in any of the international mathematics and science achievement tests since 1964. National competitiveness data are taken from the 2014-15 Global Competitiveness Index (GCI) published by the World Economic Forum. A Spearman’s rank-order correlation was run to assess the relationship between student performance on international achievement tests and the competitiveness of nations. For all nations, there was a moderate positive correlation between student performance on international achievement tests and the competitiveness of a nation, rs(98)=0.688, p
Campos bio-energéticos e o relacionamento do homem com o espaço exterior
Authors: Codes Fernando José Maximus de
Published: July 2017

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PRÁTICA DE SAÚDE MENTAL NOS CENTROS DE ATENÇÃO PSICOSSOCIAL: O DISCURSO DO SUJEITO COLETIVO
Authors: Mont’ Alverne de Barros Márcia Maria , Bessa Jorge Maria Salete
Published: July 2017

Objetivou-se compreender as concepções dos usuários em tratamento no Centro de Atenção Psicossocial (CAPS) Geral II, assistidos na Rede de Atenção Psicossocial de Sobral (CE). Quanto aos critérios de inclusão na pesquisa, considerou-se: saturação das informações, aceitação e não-aceitação, condições físicas e psíquicas, autonomia para decisão sobre a participação no estudo. Os usuários tornaram-se oficialmente participantes, mediante a coautorização expressa de seus familiares responsáveis. Dos 40 usuários, 10 participaram efetivamente da pesquisa. Esta se desenvolveu no período de março de 2007 a maio de 2008. Utilizaram-se a entrevista semiestruturada e a observação sistemática como técnicas de coleta dos dados. A análise foi organizada por meio do discurso do sujeito coletivo e interpretada à luz da hermenêutica de Gadamer. Constatou-se, no contexto da Rede de Atenção Psicossocial, que os discursos dos usuários evidenciaram a atenção prestada pelo CAPS Geral II como um dispositivo que vem propiciando sua inclusão social. Entretanto, apontaram também para a necessidade de o referido dispositivo priorizar a elaboração de estratégias e o desenvolvimento de ações permanentes, com vistas a propiciar a inserção dos usuários em atividades geradoras de renda.
ANÁLISE MICROBIOLÓGICA DA ÁGUA DE COZINHAS E/OU CANTINAS DAS INSTITUIÇÕES DE ENSINO DO MUNICÍPIO DE TEIXEIRA DE FREITAS (BA)
Authors: Santos Rocha Elissandro , Stevanin Rosico Fernando , Lobo Silva Fabiana , Santos da Luz Tereza Cecília , Fortuna Jorge Luiz
Published: July 2017

Este trabalho teve como objetivos avaliar as condições higiênico-sanitárias da água das torneiras nas instituições de ensino do município de Teixeira de Freitas (BA), identificar a possível presença de Escherichia coli nas amostras de água, além de fornecer às instituições de ensino orientações de como proceder para evitar a contaminação da água consumida, principalmente na higienização dos seus reservatórios. Foram analisadas 80 amostras coletadas em 36 instituições de ensino deste município, para pesquisa de coliformes totais e termotolerantes, utilizando-se a técnica do número mais provável e testes bioquímicos, para identificação de Escherichia coli. Das 36 escolas (100%) avaliadas 9 (25%) apresentaram-se em desacordo com as normas de potabilidade, sendo que de 80 (100%) amostras coletadas 2 (2,5%) resultaram positividade para coliformes totais, 5 (6,25%) para coliformes termotolerantes e 3 (3,75%) apresentaram a presença dos dois grupos (coliformes totais e termotolerantes). Concluiu-se que o risco à saúde nas instituições de ensino do município de Teixeira de Freitas (BA) pode ser diminuído com o tratamento da água, limpezas periódicas dos reservatórios, manutenção adequada das torneiras, higiene na manipulação de alimentos e a parceria dessas instituições com órgãos relacionados com a área de saúde, principalmente as Universidades, pela existência de tecnologias que possibilitam uma intervenção apropriada para situações em que o risco para saúde pública está presente.
Evaluación de la calidad de la carne de pollo en el mercado minorista: efectos del tipo y origen de las canales
Authors: Attia Youssef A. , Al Harthi Mohammed A. , Korish Mohamed A. , Shiboob Mohamed M.
Published: July 2017

El objetivo fue documentar la variabilidad en la calidad y contenido de nutrientes de la carne de pollo en el mercado de la ciudad de Jeddah (Arabia Saudita) proveniente de dos tipos de canales de pollos de engorda: congelados y frescos. También hay tres orígenes dentro de cada tipo (A, B, C) y (D, E y F), respectivamente. Estos fueron evaluados usando 45 canales de cada tipo, es decir, 15 canales de cada origen, seleccionadas durante tres meses. Los tipos de carne (congelada o fresca) y los orígenes dentro de cada tipo tuvieron una influencia significativa (P<0.05) en la apariencia y defectos de las canales, incluyendo peso de la piel y características de pechuga y pierna. Además, lascualidades físicas (pH, pérdida por goteo, ligereza y color amarillo) y la composición química (materia seca, proteínacruda, contenido de Ca, P, Na y K) fueron significativamente afectadas por cada tipo de carne y origen dentro de los tipos. La calidad de la carne de pollo en el mercado minorista mostró ser significativamente diferente en cuanto a selección  del  cliente  para  cumplir  con  su  ingesta  diaria  recomendada.  Esta  diferencia  en  la  calidad de  la  carne demostró potencial para impulsar su calidad nutritiva. Esto sugiere que los consumidores de carne pueden aumentar su ingesta de nutrientes a través de ser cuidadosos con sus compras. Además, dicha variación muestra la necesidad de la práctica constante en la cría y producción, en cuanto a la aplicación de normas y aspectos de nuevos controles de calidad. Basándose en el contenido nutricional declarado por las autoridades del mercado, esto puede impactar en el bienestar de los consumidores.
Morfometría del cerdo de traspatio en áreas rurales de México
Authors: Martínez Velázquez Guillermo , Román Ponce Sergio Iván , Vélez Izquierdo Alejandra , Cabrera Torres Eduardo , Cantú Covarrubias Antonio , De la Cruz Colín Lino , Durán Aguilar Marina , Maldonado Jaquez Jorge Alonso , Martínez Silva Fernandor Edga , Ríos Utrera Ángel , Vega Murillo Vicente Eliezer , Ruiz López Felipe de Jesús
Published: July 2017

Para caracterizar a las poblaciones del cerdo Pelón Mexicano (PPM), cerdo Cuino (PCU) y cerdos                   cruzados (PCI) se analizó información de 241 entrevistas realizadas durante 2013. Las variables analizadas fueron: peso corporal (Peco), longitud de cabeza (Loca), longitud del cuerpo (Locu), circunferencia del pecho (Circu), altura a la cruz         (Acruz), ancho de pelvis (Anpe), número de pezones (Nupe), pelo denso o escaso (Cape), presencia o ausencia de colmillos (Colm), hocico corto o largo (Hoc), orejas erguidas o no erguidas (Posio), temperamento tranquilo o inquieto (Tem),  índice de proporcionalidad (IP), índice corporal (IC) e índice de peso relativo (IPR). Los datos se analizaron con GLM y GENMOD del SAS. Los modelos estadísticos incluyeron Estado y Población. Población influyó (P<0.05) Peco, Locu, Circu, Acruz, Cape, Colm, Tem IP, IC e IPR. Los coeficientes de variación (CV) mostraron a Peco y Anpe como las características con menor y mayor variación (18.8 y 27.8 %). Para IP, IC e IPR los CV fueron 13.0, 14.6 y 45.8 %.Las medias de cuadrados mínimos para PPM, PCU y PCI fueron 48.06±6.17a, 35.93±3.04b y 61.11±7.42a kg (Peco); 77.81±3.65ab, 69.56±2.02a y 88.52±4.93b cm (Locu); 80.55±3.98ab, 71.72±2.20a y 93.23±5.37b cm (Circu); 56.88±2.45ab, 51.26±1.36a y 60.32±3.31b cm (Acruz); 57±4a, 71±19b y 62±34a% (Cape); 68±31ab, 70±14a y 61±27b% (Colm); 65±30a, 56±12b y 62±3a% (Tem). PPM y PCI fueron similares en morfometría pero diferentes de PCU. La población PCU mostró menor peso, menor talla y temperamento más inquieto. Caracterizar a estas poblaciones es importante para diseñar estrategias para su conservación y uso eficiente.
Tipología y caracterización de apicultores del estado de Morelos, México
Authors: Vélez Izquierdo Alejandra , Espinosa García José Antonio , Amaro Gutiérrez Rómulo , Arechavaleta Velasco Miguel Enrique
Published: July 2017

El objetivo fue caracterizar los tipos de productores apícolas que existen en el estado de Morelos, México con base al uso de componentes tecnológicos (CT) y de factores sociales, económicos y productivos, con el fin de generar información para el diseño de recomendaciones de apoyo a la apicultura. Se diseñó y aplicó un cuestionario a una muestra de 116 unidades de producción apícola (UPA) de donde se obtuvo información socioeconómica y de uso de CT de manejo, genética, alimentación y sanidad, de la cual se definieron 18 variables originales y seis índices tecnológicos, con las que se obtuvo la estratificación de los apicultores aplicando métodos multivariados. Para la caracterización y comparación de los grupos resultantes se realizó un análisis de varianza bajo un modelo completamente aleatorio para las variables continuas y una prueba de homogeneidad para las variables categóricas. Se detectaron cuatro factores que explican el 70 % de la variación y que por las cargas factoriales de las variables analizadas se llamaron: 1) capacidad productiva de la UPA, 2) estatus sanitario de la UPA, 3) capacidades del apicultor y 4) gestión de la UPA. Se identificaron tres tipos de apicultores; pequeños con nivel tecnológico bajo (55 %), grandes con nivel tecnológico intermedio (9 %) y medianos con nivel tecnológico intermedio (35 %). La tipología que se obtuvo puede ser útil para generar políticas públicas diferenciadas que incrementen el uso de innovaciones tecnológicas que incidan en una mayor eficiencia y productividad de las unidades de producción apícola.
Competitividad y participación de la miel mexicana en el mercado mundial
Authors: Magaña Magaña Miguel Ángel , Sanginés García José Roberto , Lara y Lara Pedro Enrique , Salazar Barrientos Lucila De Lourdes , Leyva Morales Carlos Enrique
Published: July 2017

La apicultura en México se practica desde la época precolombina; en el presente está arraigada en casi todas las regiones agrícolas del país y se exporta un poco menos de la mitad de la producción de miel. La importancia de esta actividad se lo confiere su generación de divisas, ingresos y empleos, por lo que los cambios en el mercado externo afectan el ingreso de las familias del medio rural y a la economía del subsector pecuario. Por este motivo, el presente artículo tiene por finalidad analizar el nivel y la posición competitiva de la miel mexicana frente a la oferta externa de los principales países productores, así como su relación con sus factores determinantes. Para alcanzar lo anterior se estimaron cuatro indicadores de resultado o ex post, considerando el procedimiento propuesto por el Instituto Interamericano de Cooperación para la Agricultura. El volumen de oferta primaria y el rendimiento por colmena ubican a México en la sexta posición mundial, mientras que como exportador se ubica en el tercer lugar; se encontró que la miel obtenida en el país presenta un alto nivel de competitividad en el mercado nacional e internacional, superado en este último ámbito sólo por China y Argentina. En la evolución de la producción exportación de miel influyen variables que tienen relación con la fase primaria de la cadena productiva, los procesos de comercialización y del medio físico-natural que determinan tanto la productividad, como la generación de los saldos exportables y de valor para la economía.
Contribución del sector pecuario a la economía mexicana. Un análisis desde la Matriz Insumo Producto
Authors: Sosa Urrutia Manuel Ernesto , Martínez Castañeda Francisco Ernesto , Espinosa García José Antonio , Buendía Rodríguez Germán
Published: July 2017

La economía mexicana ha impulsado su crecimiento principalmente por las actividades terciarias, relegando a las actividades primarias a un último lugar de importancia. A pesar de esto, la producción primaria continúa siendo muy importante para el desarrollo de otros sectores, ya que es un fuerte impulsor de la actividad económica; por ello, este trabajo se enfoca en analizar la contribución del sector pecuario en la economía, destacando sus aportes a la producción nacional y su relevancia en la demanda intermedia. Este aporte se analizó mediante la Matriz Insumo Producto, la cual permitió conocer la oferta y demanda intersectorial, identificando los sectores más importantes en la economía. Se identificó que los principales encadenamientos productivos de las actividades pecuarias se encuentran en su interior, con una demanda de insumos del 69 % para los sistemas ovino-caprino, 52 % para el bovino, 46 % para el porcino y el 45 % para el avícola. Las ramas como el cultivo de oleaginosas y cereales siguen representando una proporción importante en su esquema de insumos. En lo que se refiere al multiplicador del producto, la explotación avícola (2.28) y la explotación porcina (2.24) fueron impulsores del desarrollo económico, debido al apalancamiento que representan para otros sectores de la economía, como oleaginosas, cereales y elaboración de alimentos para animales como los principales.
Evaluación del consumo de energía metabolizable sobre el contenido energético de la canal en borregas Pelibuey
Authors: Chay-Canul Alfonso J. , Ku-Vera Juan C. , Magaña-Monforte Juan G. , Ayala-Burgos Armín J. , García-Herrera Ricardo A. , Piñeiro-Vázquez Angel T.
Published: July 2017

El objetivo del presente estudio fue evaluar el efecto del consumo de energía metabolizable (CEM) sobre el contenido energético de la canal de ovejas Pelibuey. Veinticuatro (24) ovejas con un peso vivo de 37.2±4.0 kg y condición corporal de 2.5± 0.12 se asignaron al azar a cuatro grupos de seis animales. Un grupo se sacrificó al inicio del experimento para las mediciones de referencia, y las ovejas de los grupos restantes se asignaron a uno de tres niveles de CEM: bajo (B), medio (M) y alto (A) durante 65 días. El CEM fue: 0.247, 0.472 y 0.532 MJ/kgPV0.75/día para B, M y A, respectivamente. Las ovejas se sacrificaron y la canal se dividió en dos mitades; la mitad izquierda se disecó en grasa, músculo y hueso. Las ovejas en el nivel B y M removieron 55 y el 26 % de su contenido de energía inicial de la canal respectivamente, mientras que el nivel A aumentó su contenido de energía en un 14 %. Los cambios diarios en la energía en la canal fueron -1.099, -0.515 y 0.285 MJ/día para B, M y A, respectivamente. Las proporciones de la energía en canal como músculo y grasa fueron 76 y 24 %, 68 y 32 %, y 65 y 35 % para los niveles de B, M y A, respectivamente. Las ovejas Pelibuey remueven aproximadamente el 55 % del contenido de energía de la canal cuando se someten a condiciones de subalimentación severa.
Evaluación de parámetros productivos y reproductivos en un hato de doble propósito en Tabasco, México
Authors: Arce Recinos Carlos , Aranda Ibáñez Emilio Manuel , Osorio Arce Mario Manuel , González Garduño Roberto , Díaz Rivera Pablo , Hinojosa Cuellar José Alfonso
Published: July 2017

El objetivo del estudio fue evaluar el comportamiento productivo y reproductivo de bovinos Bos taurus (BT) x Bos indicus (BI) en un sistema de doble propósito, bajo las condiciones tropicales del estado de Tabasco. Los registros se obtuvieron de la unidad de producción, UACH-URUSSE, ubicada en Teapa, Tabasco. Los años evaluados fueron 1994 a 2011, presentando información de 492 partos, y 240 lactancias completas de 130 vacas Cebú o sus cruzas (BT x BI). Los genotipos presentes en este estudio fueron las cruzas de Cebú (C) x Holstein (H): 7/8C1/8H, 3/4C1/4H, 5/8C3/8H, 1/2C1/2H, 5/8h3/8C, 11/16H5/16C y 3/4H1/4C; estos se agruparon en tres categorías 0-25%, 37.5-50% y 62.5-75% de acuerdo a la proporción de genes BT. Las variables incluyeron peso al nacimiento (PN), intervalo entre partos (IEP), producción de leche por lactancia (PLL) y duración de lactancia (DL). Los resultados indicaron que los genotipos con mayor proporción de genes BT influyó favorablemente sobre PLL (P<0.05) y DL (P<0.01), mientras que no afectó PN e IEP (P>0.05). El genotipo 62.5-75% presentó la mejor PLL (1,262.80 ± 34.80 kg) y la DL más prolongada (260.34 ± 11.20 días); comparada con los genotipos 0-25% y 37.5-50%, PLL fue 8.09 y 6.56 % mayor y con DL fue 41.72 y 33.68 días mayor, respectivamente. En conclusión, el genotipo con 62.5-75% de genes BT presentó el mejor comportamiento productivo; sin embargo, el comportamiento reproductivo fue similar en los genotipos estudiados.
Parámetros bio-económicos de la producción intensiva de la carne de bovino en México
Authors: Callejas-Juárez Nicolás , Rebollar-Rebollar Samuel , Ortega-Gutiérrez Juan Ángel , Domínguez-Viveros Joel
Published: July 2017

El objetivo de esta investigación fue evaluar la productividad de carne de bovino en confinamiento estabulado en México, a través de criterios de eficiencia, eficacia, calidad y economía, en cinco entidades (Nuevo León, Tamaulipas, Coahuila, Sonora y Baja California); considerando cinco escalas de producción (desde 3,000 a 7,000 cabezas finalizadas por ciclo). El peso vivo inicial promedio fue 267.00 ± 35.99 kg y final 470 ± 11.73 kg. El ciclo productivo promedio fue de 136 ± 22 días y 2.67 ± 0.34 ciclos por año. La eficiencia fue de 7.84 ± 1.39 kg alimento/kg y 61.20 ± 0.84 % de carne de rendimiento en canal, eficacia 99.55 ± 0.26 %, calidad 100 % y economía 3.36 ± 1.89 $/kg de ingreso neto. La relación beneficio-costo fue de 1.08 ± 0.03, con una inversión marginal promedio de 17,815.98 ± 4,795.81 pesos por cabeza. La conclusión es que la actividad económica presenta una productividad promedio de 63.50 ± 15.20 %.
Composición química, contenido mineral y digestibilidad in vitro de raigrás (Lolium perenne) según intervalo de corte y época de crecimiento
Authors: Domínguez-Vara Ignacio Arturo , Castro-Hernández Horacio , Morales-Almaráz Ernesto , Huerta-Bravo Maximino
Published: July 2017

El objetivo fue evaluar la calidad nutritiva del forraje raigrás (Lolium perenne) a diferente madurez (0, 7, 14 y 28 días) en tres épocas del año, otoño (O), invierno (I) y primavera-verano (PV), en un diseño experimental completamente al azar con arreglo factorial 4x3. La madurez del forraje aumentó de forma lineal y cuadrática el contenido de materia seca, fibra detergente ácido y lignina ácido detergente, y de forma cuadrática la fibra detergente neutro; la materia orgánica (MO) bajó de forma lineal y cuadrática, y la proteína cruda (PC) disminuyó linealmente al madurar el forraje. La MO y PC  fueron mayores en PV (P<0.01). La producción total de gas, degradabilidad y producción de gas relativa, bajaron de forma lineal y cuadrática (P<0.05) al madurar la planta; la degradabilidad y producción de gas relativa fueron mayores al día cero y en la época PV; el volumen de gas por efecto del intervalo de corte, en las tres épocas, disminuyó con la edad del forraje. El tiempo de retardo de incubación fue mayor (P<0.01) en PV. El contenido mineral del forraje se afectó (P<0.05) por el intervalo de corte y época del año; el mayor aporte fue al día cero y en PV. Los niveles de P, Ca, K, Mg y Zn del forraje no cubren los requerimientos de vacas en producción en las distintas épocas y edades de corte evaluadas. El forraje tuvo mayor calidad en la época PV, antes de 28 días de edad.
Ribotipificación de aislamientos de Mannheimia haemolytica serotipo 1 obtenidos de exudado nasal de bovinos productores de leche en México
Authors: Jaramillo-Arango Carlos J , Hernández-Castro Rigoberto , Campuzano-Ocampo Víctor M , Delgado-Sapiénd Gabriela , Morales-Espinosa Rosario , Xicohtencatl-Cortés Juan , Suárez-Güemes Francisco , Trigo-Tavera Francisco
Published: July 2017

Se realizó la caracterización genética de 106 aislamientos de Mannheimia haemolytica serotipo 1 (S1) obtenidos de exudado nasal de bovinos clínicamente sanos (BCS) (n= 80) y enfermos (BCE) (n= 26) de neumonía de dos granjas lecheras del centro y norte de México, mediante la técnica de ribotipificación. De los cuales se extrajo el DNA para realizar el proceso de digestión con la endonucleasa de restricción HindIII y la posterior ribotipificación, que se realizó utilizando una sonda que contenía el operon rrnB rRNA. Se identificaron dos patrones de ribotipos: Rt1 y Rt2, en ambos casos, con bandas de hibridación con tamaños aproximados entre 0.78 y 19.70 kb. El Rt1 presentó 11 bandas de hibridación y el Rt2 13. El 96 % de los aislamientos (102/106) se agruparon en un cluster dentro del Rt1. Entre el Rt1 y el Rt2 se presentó un valor de similitud de 70 %. No se identificaron diferencias entre los Rt de los aislamientos de los animales BCS o BCE. Estos resultados indican que la mayoría de las cepas se agrupan dentro un mismo Rt (Rt1) conformando un solo cluster, independientemente del origen de las mismas y del estado de salud
An Energy-efficient Virtual Machine Placement Algorithm based Service Level Agreement in Cloud Computing Environments
Authors: Mazidi Arash , Damghanijazi Elham , Tofighy Sajad
Published: July 2017

The cloud computing has given services to the users throughout the world during recent years. The cloud computing services have been founded according to ‘As-Pay-You-Go’ model and some leading enterprises give these services. The giving these cloud-computing services has been developed every day and these requirements necessitate for more infrastructures and Internet providers (IPs). The nodes of data centers consume a lot of energy in cloud structure and disseminate noticeable amount of carbon dioxide into the environment. We define a framework and structure for cloud environment of efficient energy in the present paper. We examine the present problems and challenges based on this structure and then present and model management algorithms and source allocation in cloud computing environment in order to manage energy in addition to considering Service Level Agreement. The proposed algorithm has been implemented by cloudsim simulator where the obtained results from simulation of real-time data indicate that the proposed method is superior to previous techniques in terms of energy consumption and observance of Service Level Agreement. Similarly, number of live migration of virtual machines and quantity of transferred data has been improved.
Modified New Flexible Weibull Distribution
Authors: Ahmad Zubair , Hussain Zawar
Published: July 2017

The present paper is devoted to introduce a four-parameter modification of new flexible Weibull distribution. The proposed model will be called modified new flexible Weibull distribution, able to model lifetime phenomena with increasing or bathtub-shaped failure rates. Some of its mathematical properties will be studied. The approach of maximum likelihood will be used for estimating the model parameters. A brief mathematical description for the reliability function will also be discussed. The usefulness of the proposed distribution will be illustrated by an application to a real data set.
Examining metallic glass formation in LaCe:Nb by ion implantation
Authors: Sisson Richard , Reinhart Cameron , Bridgman Paul , Jevremovic Tatjana
Published: July 2017

In order to combine niobium (Nb) with lanthanum (La) and cerium (Ce), Nb ions
were deposited within a thin film of these two elements. According to the
Hume-Rothery rules, these elements cannot be combined into a traditional
crystalline metallic solid. The creation of an amorphous metallic glass
consisting of Nb, La, and Ce is then investigated. Amorphous metallic glasses
are traditionally made using fast cooling of a solution of molten metals. In
this paper, we show the results of an experiment carried out to form a
metallic glass by implanting 9 MeV Nb 3+ atoms into a thin film of La and Ce.
Prior to implantation, the ion volume distribution is calculated by Monte
Carlo simulation using the SRIM tool suite. Using multiple methods of
electron microscopy and material characterization, small quantities of
amorphous metallic glass are indeed identified.
Rapid and long-term gamma-radiation annealing in low-dropout voltage regulators
Authors: Vukic Vladimir
Published: July 2017

Samples of four types of low-dropout voltage regulators, with both serial pnp
and npn transistors, were examined in room-temperature isothermal gamma
radiation annealing. After uninterrupted exposure to a total ionising dose of
500 Gy, biased and loaded voltage regulators were examined in
room-temperature annealing within the first 30 minutes after the exposure.
Beside the on-line measurement of output voltage and quiescent current during
the thirty-minute period immediately after irradiation, also results were
procured after 10-year room-temperature spontaneous recovery. Data obtained
during the irradiation and rapid annealing were fitted with linear,
exponential, and power-law regression functions. A simple procedure was
proposed, based on the quiescent current annealing factor, for the quick
estimation of the integrated voltage regulator's radiation sensitivity during
the post-irradiation isothermal annealing. In order to estimate the circuit's
radiation sensitivity, immediately after irradiation, tested devices have to
be left in the same operating conditions as during the exposure. If a clear
trend of the quiescent current recovery can be observed, further examinations
have to be implemented to estimate if a circuit is acceptably
radiation-tolerant. If no recovery trend can be observed within the first
hour after irradiation, or even further degradation is noticed, then the
examined voltage regulator is a radiation-sensitive device and cannot be used
in radiation environments. The described procedure is based on the
macroscopic effects of the radiation-induced charge-trapping in field oxides
and interfaces. [Project of the Serbian Ministry of Education, Science and
Technological Development, Grant no. 171007: Physical and functional effects
of the interaction of radiation with electrical and biological systems]

 This article has been corrected. Link to the correction 10.2298/NTRP1703305E
The impact of currently used oral antihyperglycemic drugs on dysfunctional adipose tissue
Authors: Tomic-Naglic Dragana , Mitrovic Milena , Novakovic-Paro Jovanka , Pejin Radoslav , Popovic Djordje , Pejakovic Sladjana , Srdic-Galic Biljana , Benc Damir
Published: July 2017

Obesity is a disease with pandemic frequency, often accompanied by chronic metabolic and organic complications. Type 2 diabetes mellitus (T2DM) is among the most common metabolic complications of obesity. The first step in the treatment of T2DM is medical nutrition therapy combined with moderate physical activity and with advice to patients to reduce their body weight. Pharmacotherapy starts with metformin, and in the case of inadequate therapeutic response, another antihyperglycemic agent should be added. The most clinical experience exists with sulfonylurea agents, but their use is limited due to high incidence of hypoglycemia and increase in body weight. Based on the fact that dysfunction of adipose tissue can lead to the development of chronic degenerative complications, precise use of drugs with a favorable effect on the functionality of adipose tissue represents an imperative of modern T2DM treatment. Antihyperglycemic drugs of choice in obese individuals are those which cause maturation of adipocytes, improvement of secretion of protective adipokines, and redistribution of fat mass from visceral to subcutaneous depots. Oral antihyperglycemic agents that can affect the functionality of adipose tissue are metformin, SGLT-2 inhibitors, DPP-4 inhibitors, and thiazolidinediones.
Medical students, beneficiaries of the state scholarships of the Republic of Serbia, and their education in the 21st century: The possibility of improvement
Authors: Vasojevic Nena , Filipovic Mirko
Published: July 2017

In the 19th century, at the time when Serbia was being established, the
education of students scholars abroad was viewed as one of the main tools for
professional development and a strong society. Medical students were one of
the first who were sent to study abroad. This practice was associated with
increasing vertical social mobility of society. The results achieved in the
19th century encouraged us to focus on the study of temporary migrations of
students scholars from Serbia in the 21st century. This article was created
as a result of this study.4 Our goal was to define the profile of medical
students scholars who studied abroad in the 21st century thanks to the state
funds, to determine the reasons why they opted for education outside their
country, and to determine the level of openness of the Serbian society
towards them. However, the main objective was to contribute to the research
of reverse migration.
Identity in social constructionism: A review
Authors: Milivojevic Djordje
Published: July 2017

The terms personality, identity, self or person and many others, are used in
the literature in different ways. Sometimes the term implies the personality
of the self and the person (Leary, 2004), and sometimes the identity (Harre,
2001). An important source of terminological confusion in the study of self
and identity lies in a variety of different perspectives in the social
sciences. The subject of this paper is to present the concept of identity in
social constructionist paradigm. The paper focuses on works of social
psychologist Kenneth Gergen (Gergen, 1991; Gergen, 2002; Gergen, 2009), Rom
Harre (Harre, 2001, Harre, 2004; Harre & Tisaw, 2005) and John Shotter
(Shotter, 1989; Shotter, 1997) whose speaking of the fragmented nature of
identity. The similarities and differences between these approaches are
shown. In conclusion, theoretical, methodological and political implications
of adopting a new understanding of identity are reconsidered.
PENGARUH KINERJA KEUANGAN DAN KEBIJAKAN DIVIDEN TERHADAP HARGA SAHAM (Survey Pada Perusahaan Sektor Property dan Real Estate di Bursa Efek Indonesia (BEI) Tahun 2013)
Authors: Mariana Citra
Published: July 2017

Penelitian ini bertujuan mengungkapkan pengaruh kinerja keuangan dan kebijakan dividen terhadap harga saham pada sektor property dan real estate di Bursa Efek Indonesia tahun 2013. Sampel dalam penelitian ini sebanyak 43 perusahaan. Analisis data dilakukan dua tahap. Pertama menggunakan paired sample t-test dan kedua analisis regresi linier berganda. Bersadarkan hasil analisis paired sample t-test ditemukan bahwa tidak terdapat perubahan signifikan terhadap harga saham yang terjadi pada periode sebelum publikasi, tanggal publikasi dan periode sesudah publikasi. Selanjutnya berdasarkan hasil analisis regresi linier berganda ditemukan bahwa price earnings ratio, price book value, earnings per share berpengaruh positif terhadap harga saham. Return on assets berpengaruh negatif terhadap harga saham. Debt to equity ratio, net profit margin dan kebijakan dividen tidak berpengaruh terhadap harga saham.
Saamelainen elokuvakulttuuri muotoutuvana "verkostoelokuvana"
Authors: Moffat Kate , Pönni Antti
Published: July 2017

Saamelainen elokuvakulttuuri muotoutuvana ”verkostoelokuvana”

Saamelaiset elokuvakulttuurit ovat yksi pohjoismaisen elokuvateollisuuden kehittyvistä haaroista. Myös viimeaikainen tutkimus (Mecsei 2015; Kääpä 2015) on korostanut kasvavaa kiinnostusta tämän pienen väestönosan elokuva- ja mediatuotantoihin. Pohjois-Norjan Kautokeinossa sijaitseva ISFI (International Sámi Film Institute) on tämän hetken suurin saamelainen mediaorganisaatio, joka tukee taloudellisesti ja materiaalisesti saamelaisia elokuvantekijöitä. Yhdessä pienempien tuotantoyhtiöiden kuten Bautafilmin ja alkuperäiskansojen elokuvakeskus Skábman kanssa ISFI tarjoaa nouseville tekijöille lisäksi yhteistyö- ja harjoittelumahdollisuuksia. Tämänkaltainen yhteistyö ilmentää alkuperäiskansojen elokuvakäytäntöjen transnationaalia ja -alueellista verkostoitumispotentiaalia.Pienten saamelaisten tuotantoyhtiöiden toiminnan analyysi auttaa ymmärtämään myös valtion avustusten merkitystä suhteessa saamelaisten itsemääräämisoikeuteen. Saamelaisyritykset pyrkivät vahvistamaan alueellisia kytköksiään ja niiden tähtäimenä on yhteinen saamelaisen median keskus. Pääosa niiden resursseista on kuitenkin lähtöisin erilaisilta pohjoismaisilta elokuvainstituuteilta. Tämä artikkeli tarkastelee saamelaista elokuvatuotantoa muotoutuvana ”verkostoelokuvana” Manuel Castellsin (1996) ja Marijke de Valckin (2007) näkökulmia soveltaen. Se osoittaa, miten verkostomainen yhteistyö tukee tämän nousevan elokuvakulttuurin autonomiaa.

 

Sámi Film Culture as an Emerging ‘Network Cinema’

The film cultures of the indigenous Sámi people are part of a developing branch of the Nordic film industries. Recent publications (Mecsei 2015; Kääpä 2015) highlight a growing interest in the film and media production of this small population. Currently, the International Sámi Film Institute (ISFI), based in the Kautokeino region of Northern Norway, represents the largest Sámi media organization, providing financial and material support for Sámi filmmakers. Additionally, the ISFI works with small-scale production companies like Bautafilm and Skábma – The Indigenous Peoples’ Film Centre in Finland, by providing training and other collaborative opportunities for aspiring practitioners at all levels. This collaborative work highlights both the transregional and transnational ‘networking’ potential of indigenous filmmaking practices.Analysing the workings of these small Sámi production companies also helps us to understand what role state support plays in Sámi self-determination. Although these Sámi companies are working to strengthen their regional communication links and form a collective Sámi media outlet, the bulk of their resources come from the respective Nordic film institutes. Drawing on the work of Manuel Castells (1996) and Marijke de Valck (2007), this article considers Sámi film production as part of an emerging ‘network cinema’, and looks at how network collaboration plays a complex, but nevertheless key role in the sovereignty of this emerging film culture.
Tutkija katastrofin keskellä
Authors: Hämäläinen Tuukka
Published: July 2017

Tutkija katastrofin keskellä – tutkijakuvaus ja realismi katastrofielokuvassa The WaveArtikkeli analysoi tutkijahahmojen representaatiota norjalaisessa katastrofielokuvassa The Wave (Bølgen, Norja 2015). Luonnonkatastrofista kertova The Wave on lajityyppinsä tunnistettava edustaja, joka ottaa vahvasti vaikutteita Hollywoodin esikuvistaan. Samaan aikaan se kuitenkin luopuu osasta lajityypin ominaispiirteitä ja muuttaa tämän ansiosta myös tieteellisten tutkijoiden representaatiota. Aiemman tutkimuksen perusteella elokuvien tutkijakuvaus on muuttumassa realistisemmaksi ja positiivisemmaksi. The Waven voi nähdä asettuvan osaksi tätä muutosta pohjoismaisena tuotantona, joka laventaa tutkijahahmojen representaatiota omassa genressään. Vaikka elokuvan keskeisellä tutkijahahmolla on tunnistettavasti stereotyyppisiä piirteitä, näkyvät ne laimennettuina suhteessa hahmon yhdysvaltalaisiin edeltäjiin. Vertailemalla The Wavea ja sen päähenkilöä aiempiin tutkimustuloksiin ja Hollywoodin katastrofielokuvien tutkijahahmoihin artikkeli osoittaa tavat, joilla The Wave avartaa tutkijahahmojen kuvausta realistisempaan suuntaan. Lisäksi artikkeli osoittaa, että realistisemmasta ja positiivisemmasta tutkijakuvasta huolimatta elokuva pitää yllä joitakin tieteeseen ja tutkijoihin kohdistuvia negatiivisia asenteita.

 

Researcher in a Disaster – Representation of Scientists and Realism in the Disaster Film The WaveThe article discusses the representation of scientist characters in the Norwegian disaster film The Wave (Bølgen, Norway 2015). A film focusing on a natural disaster, The Wave is a recognisable work of the genre, and it takes strong influences from Hollywood disaster films. At the same time, however, it abandons some of the typical features of the genre, and subsequently changes the representation of scientific researchers as well.Previous research has shown that the cinematic representation of scientists is changing to a more realistic and positive direction. The Wave can be seen as part of this transition as a Nordic production, which expands the representation of scientist characters within its own genre. By comparing The Wave and its leading character with previous research as well as scientist characters in Hollywood disaster films, the article presents the ways in which The Wave broadens the representation of scientists to a more realistic direction. The article also shows that, despite its more positive and realistic image of scientists, the film still holds up a few negative attitudes towards science and scientists.
An overview on short and long-term response energy storage devices for power systems applications
Authors: Sérgio Faias  , Patrícia Santos  , Jorge Sousa  , Rui Castro
Published: July 2017

Energy storage devices provide valuable benefits to improve stability, power quality and reliability of supply. Storage technologies have developed significantly in order to meet the challenges of practical power systems applications.
Energy storage devices can be classified into short and longterm response, depending on their application. Technologies with high power density and with the ability to respond to the requests in short time fractions like flywheels, capacitors or superconducting magnetic coils belong to the so-called shortterm response energy storage devices category. Energy storage devices with the capability to absorb and supply electrical energy for long periods of time like pumping hydro, batteries, compressed air and hydrogen fuel cells are considered in the long-term response category.
This paper concentrates on the latest short and long-term energy storage technology developments, performance analysis, and cost considerations.
Control of series active power filter by state feedback
Authors: S. P. Litrán  , P. Salmerón  , R. S. Herrera  , J. R. Vázquez
Published: July 2017

The active power filters in series connection or series APF, are static compensation systems based on an electronic converter PWM (Pulse Width Modulation). The systematic use of series APFs in the power systems allows the elimination of the harmonics caused by specific loads named voltage source harmonic loads. To obtain this compensation objective, several strategies have been proposed up now. Nevertheless, each strategy development has been based on the equivalent electrical circuit and on the results obtained in simulation and/or experimental tests. Generally, the control structure formal analysis is not carried out. In this work, the whole system state model has been obtained. Besides, the system behavior has been analyzed from the state equations for each compensation strategy. As a consequence, the analysis has allowed the establishment of design rules respect to the resultant control strategy. Finally, a practical case is presented, whose results illustrate the proposed method.
A dynamic model of a vertical direct expansion ground heat exchanger
Authors: B. Beauchamp  , L. Lamarche  , S. Kajl
Published: July 2017

The paper presents a general distributed model of a vertical U-tube direct expansion heat exchanger coupled with the ground. This model is developed for studying the dynamic thermal behavior of a buried heat exchanger (the evaporator or condenser) which is an integral part of the so-called direct expansion heat pump. The transient conservative equations of mass and energy considering the two-phase flow of refrigerant are derived and presented. The heat exchange with the ground is treated using an analytical approach to treat short time response of vertical boreholes based on an imposed heat flux. The thermal interference between the two pipes of the heat exchanger is also considered. The mathematical equations of the model are numerically presented using a finite difference scheme and the solution of the system of equations is obtained using a built-in iterative solver function of MatLab®. The dynamic behavior of a condenser and an evaporator are first obtained by imposing a change of the inlet conditions. Experimental data from a test rig are used to demonstrate the validity of the dynamic model
Influence of converter - connected distributed generation on distribution network losses
Authors: Lieven Degroote  , Bert Renders,  , Bart Meersman  , Lieven.Degroote@UGent.be
Published: July 2017

Distributed generation (DG) is predicted to play an increasing role in the electric power system of the near future. There are different types of DG units from the constructional and technological points of view, which have a different influence on the distribution network. The impact of DG on the network is considered, with a more extensive discussion on the influence of DG on the network losses. The calculation of these network losses is applied in several optimisation programs to quantify an optimal size and location of the DG unit. In these programs the power quality can be taken into account but harmonic losses are rarely considered, although it is known that several DG topologies can have a negative influence on the total harmonic distortion and thus on the harmonic losses. Therefore, this paper will investigate the influence of converter-connected DG units on fundamental and harmonic losses in the distribution network
MAKASSARESE AND BUGINESE LOCAL WISDOMS IN SCL-BASED WRITING CLASS (A CASE STUDY)
Authors: Jubhari Ria , Bazergan Etty , Mokoginta Karmila , Sitoto Simon , Syarif Besse Puspita , Iswari Ery
Published: July 2017

This descriptive-qualitative case study aims to (1) identify the values of Buginese/Makasaresse local wisdoms that shape the learning process of Hasanuddin University students attending the Writing2 (MBI2) subject in the even semester, 2014; (2) find out which of the local wisdoms that strongly shape the student-centred learning (SCL) process in the Writing II class. The study focused on students classroom interaction. Data were collected from classroom observations, questionnaires, interviews and teachers note on the learning process in classroom. This study found that what is thought as Buginese or Makassarese local wisdoms can both support and inhibit the SCL process in MBI2. Such local wisdoms include respect to older people and mutual help