bluuebunny/crossref_metadata_2025 huggingface dataset:
Imágenes de ciencia en los textos universitarios. Aportes para nuevas retóricas desde la actividad experimental en electrostática
Authors: García Edwin Germán
Published: December 2017

El artículo presenta un estudio de la retórica de los textos universitarios de física fundamental, identificando la yuxtaposición en imágenes de ciencia, problemas conceptuales, ausencia de actividad experimental y coincidencia con explicaciones otorgadas por estudiantes en relación con los significados sobre electrostática. El proyecto se desarrolló en tres fases, primero, la selección de textos objeto de estudio, de acuerdo con el nivel de uso y consulta por parte de profesores y estudiantes universitarios en formación. Segundo, se identificó la retórica presente en el desarrollo discursivo del texto y la actividad experimental asociada a la electrostática, de acuerdo con las técnicas de análisis sugeridas por Van Dijk. Finalmente, se realizó una contrastación entre la retórica de los textos y las explicaciones de los estudiantes a los fenómenos electrostáticos. Se emplearon redes sistémicas sobre narrativas experimentales asociadas a modelos de ciencia, didácticos y de lector. Se destaca la escasa importancia dada a la actividad experimental y la ausencia del sentido histórico del conocimiento sobre la electricidad en los textos, lo cual, favorece imágenes distorsionadas de la actividad científica y carencia en las explicaciones sobre los fenómenos estudiados. Se analiza la importancia de reflexionar el sentido histórico del conocimiento, la pertinencia de la actividad experimental y el ejercicio de una retórica de construcción de explicaciones y significados asociados a la electrostática.
Las otras educaciones en el campo pedagógico latinoamericano
Authors: Castillo Guzmán Elizabeth
Published: December 2017

Este número de la Revista Nodos y Nudos convocó un ejercicio colectivo para recabar en aquella parte de lahistoria, un tanto invisible en la versión oficial de la educación latinoamericana, y bajo la deno minación de las otras educaciones fue juntando voces y letras para dar cuenta de problemas y fenómenos pedagógicos herederos de las viejas batallas del siglo pasado. Las incansables agendas políticas de comunidades indígenas de Argentina y Colombia, las formas ancestrales de educación propia de los palenqueros de Colombia, las tensiones de una educación superior que pretende interculturalizarse, el papel de la diferencia étnica en los textos escolares, y el drama de la niñez indígena y afrodescendiente en las ciudades del destierro, son los planos que nos presentan las autoras reunidas bajo este techo editorial de la Revista Nodos y Nudos de la UPN.
Universidad e interculturalidad: encuentros y desencuentros, desafíos y esperanzas
Authors: Rodríguez Gómez Hilda Mar
Published: December 2017

El reconocimiento constitucional de que Colombia es un país pluriétnico y multicultural planteó demandas específicas a diversos sectores y ámbitos de la nación. La primera de ellas está referida al reconocimiento de que el Estado monocultural (un solo Dios, una sola lengua, una sola idea de familia, de producción o desarrollo) era insuficiente para describir, explicar, comprender y nombrar la realidad de nuestro país. Surge, así, un vocabulario nuevo para nombrar el territorio, la gente, las acciones, las formas de producción, la relación con la tierra, el encuentro con otros. Y aunque la distancia entre la formulación constitucional y la realidad es grande, existe una brecha, hay avances y logros que reconocen la diversidad. Para el caso de este artículo, me centro en el ámbito educativo, especialmente en la educación superior, a partir de los resultados de la investigación “Interculturalidad y políticas de inclusión en la universidad colombiana. Lecciones aprendidas”. Lo que pretendo es dar cuenta de una de las vías para comprender la diversidad en el ámbito universitario: interculturalizarse.
Directorio
Authors: Nodos y Nudos Revista
Published: December 2017

Lista de autores y artículos por sección.
Hojeando
Authors: Nodos y Nudos Revista
Published: December 2017

Otros ejemplares.
La historia oral en las memorias de prácticas culturales para pensar un (por)venir de la educación (matemática) indígena
Authors: Higuita Carolina , Tascón Abelardo , Jaramillo Diana
Published: December 2017

Este artículo presenta el proceso de investigación titulado “La movilización de objetos culturales desde las memorias de la práctica de construcción de la vivienda tradicional Embera Chamí: posibilidades para pensar el (por)venir de la educación (matemática) indígena” y pretende visibilizar las tensiones y desafíos que implica el hacer investigación, y ser investigador, en el campo de la Etnomatemática,De esta manera se presenta tres tensiones, la primera, respecto a los vínculos relacionales entre las investigadoras y la comunidad indígena. La segunda, referida a la necesidad de considerar la lengua y los lenguajes producidos por las comunidades para ampliar los horizontes teóricos, metodológicos y prácticos del proceso de investigación. La tercera, en la apertura personal en aprender otras formas de ser y de estar en el mundoLa investigación se desarrolla desde el método de historia oral, el cual, valora y comprende la experiencia desde las voces de quienes han sido silenciados y/u oprimidos, tiene como elemento base el análisis deconstructivo. Como resultado, se consigue que los Jaibanás, (personas dedicadas a proteger el territorio y la salud de los miembros de la comunidad), participen, proponiendo alternativas para que parte de la sabiduría Embera Chamí fuese explicitada, discutida y problematizada en la escuela.
OCIO EN EL MODELO LABORAL OPERARIO COLOMBIANO
Authors: Reyes Rivera Mabir Lubieth
Published: December 2017

Este artículo presenta un recorrido histórico que comienza con el surgimiento de la época reconocida como Revolución Industrial y su influencia en las luchas obreras que a través del tiempo marcaron,de alguna manera, la percepción del trabajo tanto por parte de los trabajadores como de los mismos dueños de las fábricas, y luego esta en el contexto de la vida de los trabajadores colombianos a comienzos del siglo xx. Culminando este recorrido se busca encontrar el vínculo del trabajo y del ocio con la población trabajadora colombiana que se ve envuelta en una historia de resistencia sindical y transformación educativa que, sin duda, influye en el reconocimiento que esta población tiene en la actualidad de estos dos actos, llegando a una serie de confrontaciones finales que resultan en interrogantes e invitan a la reflexión.
Sección Ludica
Authors: Revista Ludica Pedagogica
Published: December 2017

Sección Ludica
Вопросы и перспективы развития проектной деятельности в России
Authors: Боровских Ольга Николаевна
Published: December 2017

Проектные организации являются активными участниками инвестиционно-строительного процесса. В настоящее время большинство проектных организаций относятся к предприятиям малого и микробизнеса, действующих в жесткой конкурентной борьбе. Для повышения ответственности саморегулируемых организаций за своих членов было создано Национальное объединение изыскателей и проектировщиков (НОПРИЗ), включивших в себя объединения саморегулируемых организаций проектировщиков и изыскателей. Для улучшения качества выполняемых проектно-изыскательских работ был создан Национальный реестр специалистов (НРС) в области инженерных изысканий и архитектурно-строительного проектирования. Одним из механизмов снижения стоимости и повышения качества проектирования проектов, с точки зрения государства, выступает типовое проектирование. Также государство всячески стимулирует и поддерживает использование BIM технологий как один из перспективных способов проектирования в строительстве, в результате которого можно сформировать информационную модель здания на протяжении всего жизненного цикла объекта. Предупреждение завышенной стоимости объекта планируется предотвратить за счет запуска в работу федеральной системы ценообразования, основанной на мониторинге цен строительных ресурсов. Материалы статьи могут иметь практическую значимость для представителей органов государственной власти, собственников и руководителей проектных организаций, а также представителей саморегулируемых организаций.
Pluralismo constitucional y espacios transnacionales: ¿el fin de la constitución nacional o su nuevo comienzo?
Authors: Caballero Lois Cecilia , Magno Pinto Bastos Júnior Luiz Magno
Published: December 2017

El modelo clásico de organización política atraviesa un proceso de crisis profunda. Inexorablemente, las “fronteras” políticas, económicas, jurídicas, sociales y culturales de los Estados se tornan cada vez más porosas (para no decir sin sentido). Esta situación hace que las diferenciaciones entre derecho y política modernamente operadas por la constitución se diluyan, hasta el punto de que los elementos conceptuales clásicamente formulados por la teoría constitucional se muestran ahora incapaces de resolver los problemas relativos a la normativa social y las pretensiones de ordenación social. Este artículo pretende discutir en qué medida es posible mantener las funciones tradicionales asignadas a la constitución en vista de la ampliación de las áreas de regulación transnacional. Trata, en otras palabras, de entender las consecuencias y las posibilidades de (re)organización del proceso de ordenación que afectan al diseño estructural de la soberanía constitucional en su forma más fundamental, es decir, en su capacidad soberana para decidir en un determinado territorio. Se hace énfasis en la dimensión institucional de estas transformaciones, con vistas a formular, al final de este artículo, las bases para la identificación de un modelo de pluralismo constitucional apoyado sobre las máximas de pluralidad, ordenación heterárquica y conflictividad.
A History of Social Work in Public Health
Authors: Ruth Betty J. , Marshall Jamie Wyatt
Published: December 2017

Social work is a core health profession with origins deeply connected to the development of contemporary public health in the United States. Today, many of the nation’s 600 000 social workers practice broadly in public health and in other health settings, drawing on a century of experience in combining clinical, intermediate, and population approaches for greater health impact. Yet, the historic significance of this long-standing interdisciplinary collaboration—and its current implications—remains underexplored in the present era. This article builds on primary and contemporary sources to trace the historic arc of social work in public health, providing examples of successful collaborations. The scope and practices of public health social work practice are explored, and we articulate a rationale for an expanded place for social work in the public health enterprise.
Escalas de Resiliência: uma revisão narrativa
Authors: Spencer Hartmann Junior José Antônio , Araújo Pimentel de Medeiros Antônio Gabriel
Published: December 2017

A resiliência é um termo que vem ganhando destaque na psicologia graças ao surgimento da Psicologia Positiva. A proposta dessa corrente é o foco no desenvolvimento das potencialidades humanas, criando assim uma ciência capaz de trabalhar de forma séria os aspectos positivos. A possibilidade de desenvolver-se normalmente mesmo enfrentando dificuldades é o conceito que relaciona os aspectos teóricos que definem a resiliência. É um processo dinâmico, pois permite adaptação positiva e um conjunto de atitudes competentes a cada nova situação adversa. O objetivo do estudo foi identificar e descrever escalas atualmente utilizadas presentes na literatura. Foi feita uma revisão narrativa com escalas presentes na literatura. A partir dos instrumentos apresentados, podemos detectar uma crescente no referencial de avaliação da resiliência. Abre-se a possibilidade de avaliar diversas populações, o que ajuda a expandir o alcance desse construto e desenvolver a atuação do psicólogo em diversas áreas.
The effect of 8 weeks of Circuit Resistance Training on metabolic syndrome risk factors and body composition in women over age 50 with diabetes mellitus type 2
Authors: Azarmehr Seyede Amene , Esmaelzadeh toloee Mohammadreza , Akbari Esmail
Published: December 2017

Abstract

Introduction: The prevalence of type 2 diabetes mellitus (T2DM) increased significantly in the last three decades, and effective strategies to manage and prevent this disease are urgently needed. Physical activity and exercise training is an effective way for metabolic syndrome risk factors in type 2 diabetes mellitus (T2DM) patients. However, the effects of Circuit Resistance Training (CRT) program on patients T2DM are unknown. The purpose of this study is to investigation the effect of 8 weeks of Circuit resistance training (CRT) on metabolic syndrome and body composition in women over age 50 with T2DM.

Methods: Twenty women over 50 years old with diabetes Referred to diabetes Center of 17 Shahrivar hospital in Amol and they were divided randomly into two groups; Circuit resistance (n=10) and Control (n=10).

Resistance training consisted of 10 stations for 8 weeks and 3 sessions per week (Intensity 60-80% 1RM). Levels of Lipid profile and body composition before and after eight weeks training in both groups were measured. Statistical analysis of the data was carried out by SPSS (v. 22).

Results Fasting Blood Sugar (FBS) levels (P=0.021), Triglycerides (0.010), high-density lipoprotein cholesterol (0.042), significant decreased in CRT. Also after 8 weeks circuit resistance training, BMI (P= 0.003), WHR (P=0.004) and body fat present (0.019) significant decreased in CRT.

Conclusion: According to our results, CRT was an effective approach to improve the Anthropometrics, FBS, lipid profile in women over age 50 with diabetes mellitus type 2. Moreover, CRT did have influence on LDL level. 

Keywords: Circuit resistance training, insulin resistance, metabolic syndrome, body composition
TEOLOGIA DO QOHELET: UMA PROPOSTA
Authors: Castro Neto José Carlos Camillo , Leal Jônatas De Mattos
Published: December 2017

O livro de Eclesiastes tem sido considerado um dos mais difíceis de ser interpretado nos estudos do Antigo Testamento. Prova disso são as inúmeras visões que os diversos estudiosos têm sobre esse livro. Ainda mais complicado se torna tentar entender o modo como o livro apresenta Deus. Este é o tema deste artigo. Para alcançar o objetivo de tentar entender como Deus é apresentado nesse livro enigmático, recorreu-se à revisão de literatura sobre o tema, bem como à exegese de várias passagens. Percebeu-se que duas visões são apresentados sobre Deus em Eclesiastes: uma de um Ser distante e incompreensível e outra de um Ser que atua pelo juízo. As duas visões são harmonizadas por características literárias do livro. Essa visão dupla e aparentemente paradoxal sobre a divindade aparece em outras partes do Antigo Testamento (AT), especialmente no corpus sapiencial da Bíblia Hebraica.
Cáncer de Colon Hereditario no Polipósico o Síndrome de Lynch
Authors: Cire Bah Mariama
Published: December 2017

En el cáncer colorrectal los tumores se forman en el revestimiento del colon y del recto. Este tipo de cáncer es la segunda causa de muerte por cáncer en los países industrializados tras el cáncer de pulmón. El 80% de los cánceres colorrectales son de aparición esporádica, el 10% son familiares y el restante 5-10% tienen carácter hereditario de los cuales un 4-5% se asignan al Síndrome de Lynch o CCHNP. Los genes que se asocian con una mayor proporción de casos al CCHNP son MLH1, MSH2, MSH6 y PMS2. En el SL, el carcinoma de colon se caracteriza por aparecer a una edad temprana (antes de los 50 años), localizarse en el colon derecho y a una mayor frecuencia de tumores sincrónicos o metacrónicos. Como objetivo se plantea realizar una búsqueda bibliográfica de lo más exhaustiva posible en bases de datos actualizadas, tanto nacionales como internacionales.
Mundo plural: ¿por qué los individuos hacen lo que hacen?
Authors: Lahire Bernard
Published: December 2017

En un contexto de hiper-especialización, el artí­culo se pregunta por una visión panorámica de la sociedad y una concepción compleja de los individuos, que no olvide a la vez la ambición teórica y el pulso empí­rico. Con este objetivo, se pregunta: “ ¿por qué los individuos hacen lo que hacen?” y propone responder con una fórmula de estudio de las prácticas de carácter universal que combina una dimensión disposicionalista con una contextualista. De un lado, las disposiciones y competencias de los individuos, entendidas como el producto interiorizado de la frecuentación más o menos intensa a determinados contextos de acción. Del otro lado, los contextos de la acción presente y su diversidad. Desde esta fórmula, el artí­culo evalúa distintas aproximaciones a lo social: por un lado, el olvido del pasado, caracterí­stico de las sociologí­as pragmatistas, interaccionistas y de la elección racional; por el otro lado, el olvido de los contextos, tí­pico de las sociologí­as bourdieanas y de ciertas teorí­as psicoanalí­ticas. Para finalizar, el artí­culo repasa la diversidad de las investigaciones contemporáneas en ciencias sociales (en relación con la escala de la observación, el nivel de la realidad social estudiado, el interés de conocimiento, el tipo de objeto, las escalas temporales, el número de actores estudiados, etc.), mostrando que el enfoque disposicional-contextualista puede orientar trabajos en dichas direcciones tan diferentes.
Acompanhamento de gestantes: nível de informação e influências de familiares, amigos e da mídia para a decisão do tipo de parto
Authors: Silva Heslley Machado , Ribeiro Camila Danielle , Costa Angélica Rodrigues
Published: December 2017

Para perceber  o nível de informação e detectar as influências de familiares, amigos e mídia para a decisão   do   tipo   de   parto,   realizaram­se   entrevistas   quinzenais   com   dez   gestantes   durante   período intermediário   do   acompanhamento   pré­natal.   Os   resultados   evidenciaram   que,   quanto   ao   nível   de informação, as gestantes apresentaram situações díspares, com gestantes considerando­se devidamente informadas e outras não. No que se refere às influências, tanto a família e o seu meio social quanto a mídia, especialmente a local, revelaram­se importantes no processo de tomada de decisão. Conclui­-se que ocorre uma fragilidade na transmissão da informação, gerando uma aparente insegurança na tomada de decisão. Também se deduziu que é preciso difundir a informação adequada via mídia, que abarque a sociedade como um todo, especialmente a família, pelo grau de influência sobre as gestantes detectado nesses agentes.
PENGARUH ACCOUNTING DISCLOSURE, ACCOUNTING HARMONIZATION DAN KOMITE AUDIT TERHADAP KUALITAS LABA (Studi pada Perusahaan Manufaktur yang terdaftar di BEI)
Authors: Suryanto Tulus
Published: December 2017

Penelitian ini bertujuan untuk menguji pengaruh pengungkapan akuntansi, akuntansi harmonisasi dan pemeriksaan committies untuk mendapatkan kualitas. Penelitian ini dilakukan untuk perusahaan manufaktur yang terdaftar di excange saham dari 2009 sampai 2013. Berdasarkan sampel mengumpulkan menggunakan purposive sampling untuk mendapatkan sampel dari 48 perusahaan. Analisis data menggunakan program SPSS dengan analisis regresi berganda. Hasil penelitian menunjukkan bahwa pengungkapan akuntansi belum berpengaruh ke pendapatan quality.In sisi lain, akuntansi harmonisasi dan pemeriksaan committies memiliki efek positif untuk mendapatkan kualitas.This research aims to examine the effect of accounting disclosure, accounting harmonization and audit committies to earning quality. This research was conducted to manufacturing company listed on the stock excange from 2009 until 2013. Based on sample collecting using purposive sampling to obtain a sample of 48 companies. Data analysis uses SPSS programs with multiple regression analysis. The result showed that accounting disclosure hasn’t effect to earning quality.In other hand, accounting harmonization and audit committies have a positif effect to earning quality.
Design of Kouchigawa Bridge on the Shin-Tomei Expressway - a Steel- Prestressed Concrete Composite Multiple-span Balanced Arch Bridge
Authors: Kuroda Kenji , Kawakami Tetsuharu , Aizawa Shinichi , Maeda Yoshito , Yoshida Tadahiro
Published: December 2017

A three-span composite balanced arch structure was adopted as the river-crossing section of the bridge, using a balanced truss cantilever erection method. The arch ribs were designed as prestressed concrete (PC) box girders and the stiffening girders were designed as steel box girders. PC box girders were also adopted on the approach spans. In order to improve driving comfort of passing traffic and minimize maintenance cost, the stiffening girders of the balanced arch are connected with the PC box girders of the approach spans without expansion joints. In order to increase the seismic resistance of the bridge, rigid connections were used at most joints between the substructures and superstructures, and between the vertical members and stiffening girders.
Walton Bridge – a new arch bridge over the River Thames, UK
Authors: Smith David A. , Hendy Chris , Wheatley Rob , Chiarello Manuela
Published: December 2017

Walton Bridge comprises a steel thrust arch with pad foundations supporting a steel-concrete composite ladder deck. The arch ribs have parabolic profile and varying hexagonal cross-section, tapering from springing points to crown, and span 96.1 m. The total rise of the arch is 14.77 m with a span to rise ratio of 6.5. The bridge deck is suspended from the arch by bar-type hangers. Continuous end spans carry the bridge deck between the arch and end abutments, which are full height reinforced concrete. This paper discusses the method of design employed, including the impact of construction methodology and environmental constraints, together with analysis of aerodynamic effects. It focuses on a number of innovations that were introduced and challenges that were resolved. Two key issues were:

Arch design utilising plastic section properties with reductions to account for the continuously curved steel plating making up the arch ribs;

Design and specification of bar-type arch hangers for brittle fracture and fatigue, noting that there was insufficient industry guidance on either subject.
Contributing human and organizational factors for damage of Bos & Lommer plaza in Amsterdam
Authors: Terwel Karel
Published: December 2017

The Bos & Lommer plaza complex in Amsterdam was completed in 2004. This complex consisted of apartments, shops and a parking for over 500 cars. In 2006, an 11 ton truck was positioned on the plaza deck and caused structural damage. Part of the load bearing structure had failed and the apartments were evacuated, until the deck was strutted.

Forensic investigations showed that detailing of the reinforcement was questionable and the amount of reinforcement was insufficient, or deviated from drawings. The whole complex was evacuated until measures were taken. Subsequently, investigations of the shops and apartments above the parking showed that the design of a 1 m thick transfer floor might have been erroneous.

Profound investigation of this case showed various human and organizational factors, that might have contributed to the failure. The stacking of various functions resulted in a complex load bearing structure. The building process was complex with over 50 subcontractors. The safety culture was not well developed, given heavily economizing on costs and very tight planning, fragmentation and no clear final responsibility. Risk analysis and checking procedures were lacking. Communication and collaboration could have been improved.

This paper will give insight in technical causes of the failure and in underlying contributing factors. These underlying factors will be systematically studied, by using a theoretical framework.
A Comparative Study of Online Item Calibration Methods in Multidimensional Computerized Adaptive Testing
Authors: Chen Ping
Published: December 2017

Calibration of new items online has been an important topic in item replenishment for multidimensional computerized adaptive testing (MCAT). Several online calibration methods have been proposed for MCAT, such as multidimensional “one expectation–maximization (EM) cycle” (M-OEM) and multidimensional “multiple EM cycles” (M-MEM). However, M-MEM often fails to converge when the correlations between dimensions are relatively high. To solve the nonconvergence issue and more accurately calibrate new items, this article combines Bayes modal estimation with M-OEM and M-MEM to make full use of the prior information from the item parameters of the new items. The obtained two new Bayesian methods were compared with the existing methods under several conditions, assuming the new items were assigned to examinees via random design or optimal Bayesian adaptive design. The simulation results showed that adding prior to the new item parameters was helpful to improve the calibration precision and efficiency of M-MEM but not so much for M-OEM, and the two online calibration designs exemplified very similar calibration precision.
Statistical Power for Causally Defined Indirect Effects in Group-Randomized Trials With Individual-Level Mediators
Authors: Kelcey Benjamin , Dong Nianbo , Spybrook Jessaca , Cox Kyle
Published: December 2017

Designs that facilitate inferences concerning both the total and indirect effects of a treatment potentially offer a more holistic description of interventions because they can complement “what works” questions with the comprehensive study of the causal connections implied by substantive theories. Mapping the sensitivity of designs to detect these effects is of critical importance because it directly governs the types of evidence researchers can bring to bear on theories of action under realistic sample sizes. In this study, we develop closed-form expressions to estimate the variance of and the power to detect causally defined indirect effects in two-level group-randomized studies examining individual-level mediators (i.e., 2-1-1 mediation). We formulate our approach within the purview of typical multilevel mediation models and anchor their interpretation in the potential outcomes framework. The results provide power analysis formulas that reduce calculations to simple functions of the primary path coefficients (e.g., treatment–mediator and mediator–outcome relationships) and common summary statistics (e.g., intraclass correlation coefficients). Probing these formulas suggests that group-randomized designs can be well powered to detect indirect effects when carefully planned. The power formulas are implemented in the PowerUp software ( causalevaluation.org ).
Reporting Subscores Using R: A Software Review
Authors: Dai Shenghai , Svetina Dubravka , Wang Xiaolin
Published: December 2017

There is an increasing interest in reporting test subscores for diagnostic purposes. In this article, we review nine popular R packages (subscore, mirt, TAM, sirt, CDM, NPCD, lavaan, sem, and OpenMX) that are capable of implementing subscore-reporting methods within one or more frameworks including classical test theory, multidimensional item response theory, cognitive diagnostic models, and factor analysis. A real data example is used to illustrate how to examine whether subscores should be reported and how to obtain subscores. We also briefly compare the features of selected packages for reporting subscores.
Different roles of water in secondary organic aerosol formation from toluene and isoprene
Authors: Jia Long , Xu Yongfu
Published: December 2017

Abstract. Roles of water in the formation of secondary organic aerosol (SOA) from the irradiations of toluene-NO2 and isoprene-NO2 were investigated in a smog chamber. Experimental results show that the yield of SOA from toluene almost doubled as relative humidity increased from 5 % to 85 %, whereas the yield of SOA from isoprene under humid conditions decreased by 2.6 times as compared to that under dry conditions. The distinct difference of RH effects on SOA formation from toluene and isoprene is well explained with our experiments and model simulations. The increased SOA from humid toluene-NO2 irradiations is mainly contributed by O–H-containing products such as polyalcohols formed from aqueous reactions. The major chemical components of SOA in isoprene-NO2 irradiations are oligomers formed from the gas phase. SOA formation from isoprene-NO2 irradiations is controlled by stable Criegee intermediate (SCI) that is greatly influenced by water. As a result, high RH can obstruct the oligomerization reaction of SCI to form SOA.
CO2 partial pressure and CO2 emissions from the lower Red River (Vietnam)
Authors: Le Thi Phuong Quynh , Marchand Cyril , Ho Cuong Tu , Duong Thi Thuy , Nguyen Huong Thi Mai , XiXi Lu , Vu Duy An , Doan Phuong Kieu , Le Nhu Da
Published: December 2017

Abstract. The Red River (Vietnam) is a good example of a South-East Asian river system, strongly affected by climate and human activities. This study aims to quantify the spatial and seasonal variability of carbon dynamic and CO2 outgassing at the water–air interface of the lower Red River system. The monitoring of water quality and CO2 emission were carried out for 24 h cyclings at the five stations during the dry and monsoon seasons. The riverine water pCO2 was supersaturated with CO2 in contrast to the atmospheric equilibrium (400 ppm), averaging about 1588.6 ± 884.6 ppm, thus resulting in a water–air CO2 ﬂux of 26.9 ± 18.4 mmol m−2 day−1. The CO2 outgassing rate was characterized by significant spatial variations, highest at Hoa Binh station (Da River) due to the dam impoundment and the highest river flow. Surprisingly, CO2 outgassing was higher in the day time (30.4 ± 21.2 mmol m−2 day−1) than in the night time (23.3 ± 15.4 mmol m−2 day−1), probably as a result of the combined effect of higher wind speed and water temperature in the day time. Seasonal differences were also observed, higher in the wet season (30.7 ± 23.1 mmol m−2 day−1) than in the dry season (23.0 ± 12.2 mmol m−2 day−1), due to higher river discharges and higher external inputs of organic matters from watersheds. Conversely during dry season, temperature was among the main factors influencing C dynamic, with higher pCO2 and fluxes, probably as a result of increased metabolic rates.
La investigación en comunicación en Latinoamérica: Una aproximación histórica (1950-2016)
Authors: González-Samé Héctor , Romero-Rodríguez Luis M. , Aguaded Ignacio
Published: December 2017

Este trabajo tiene como objetivo realizar un recorrido cronológico acerca de la investigación en Comunicación en Latinoamérica, identificando sus principales hitos y precisando si epistemológicamente ha existido una Escuela Latinoamericana de Comunicación. El método utilizado es la revisión crítica de literatura académica, organizando los aportes en decenios estructurados y el cotejo de los hallazgos con relación a otros estudios de la materia. Los principales resultados destacan que ha habido períodos de desarrollo epistemológico independiente, aun cuando no existe uniformidad en la producción y difusión científica. Asimismo se destaca el papel integrador que han tenido los esfuerzos asociativos de la investigación latinoamericana.
Finger Millet (Eleusine coracana L. Gaertn.) Production System: Status, Potential, Constraints and Implications for Improving Small Farmer’s Welfare
Authors: Sakamma S. , Umesh K. B. , Girish M. R. , Ravi S. C. , Satishkumar M. , Bellundagi Veerabhadrappa
Published: December 2017

This article aims to investigate the growth in area, production and productivity, mapping of cultivation technologies, economics, potentials and constraints for area and production expansion of finger millet. The exponential growth rates, indicated that though there was deceleration both in area and production there was significant growth in productivity due to introduction of high yielding varieties. The respondents under different production system (rainfed and irrigated situation) were homogeneous with respect to the age and family size except land holding and education level. Finger millet possesses tremendous potential for product diversification and export. Mapping of cultivation technologies indicated that, farmers applied more fertilizers than recommended. Hence, there is a need to strengthen extension/outreach programmes to create awareness among farmers to use the optimum level of nutrients, which helps in reducing the cost incurred by farmers as well as subsidy burden on government. The existing procurement price for finger millet was Rs. 2100/q which failed to cover the cost of production under rainfed situation. In the total land holding, the area under finger millet accounted for major (64%) share in rainfed situation and thus the procurement price must be fixed looking into the cost of production of rainfed (Rs. 2624/q) finger millet, which helps in improving the welfare of finger millet growing small farmers.
NOVA REGULATIVA O OSIGURANJU EVROPSKE UNIJE - SOLVENTNOST 2 I NUZNE REFORME ZA NJENUIMPLEMENTACIJU U MAKEDONIJI
Authors: Petrevska Biljana
Published: December 2017

Osnovni cilj ovog rada je da analizira Solventnost 2 - nova regulativa o osiguranja Evropske Unije, uvedena da bi se poboljsala finansijska stabilnost kompanije za osiguranje i reosiguranje, i da bi se osigurenici i korisnici osiguranja bolje zastitili od nesolventnih osiguranja. Ovaj rad ce opisati koncept Solventnost 2 i predlozi ce nuzne reforme u zakonodavstvu i institucionalne reforme, koji bi bili analizirani iz razlicitih aspekata, kako bi se u potpunosti implementirao ovaj koncept u Republici Makedoniji. Ovaj rad bice sastavljen iz 4 dela. Prvi deo ovog rada ce biti uvod koji ce objasniti predmet istrazivanja, dok u drugom delu cemo detaljno analiziratipravni okvir Evropske Unije koji regulise pitanje Solventnost 2, kao sistem koji je zasnivan na 3 stuba, a to su: kvantitativni zahtevi, kvalitativni zahtevi i obavezno objavljivanje podataka o trzistu. U trecem delu ovog rada cemo objasniti reforme koje su nuzne za sprovodenje Solventnost 2 u Republici Makedoniji. Na kraju, u cetvrtom delu ovog rada, “Zakljucak” dajemo nase osnovne zakljucke koji proizlaze iz naseg rada.
A COMPARATIVE ANALYSIS OF THE ONLINE VIDEO PLATFORMS FOR INTERACTIVE MULTIMEDIA DELIVERY
Authors: Ljubojević Miloš , Orlić Nenad , Vasković Vojkan , Šćepanović Ivan
Published: December 2017

In this paper the technical performances and the effectiveness of four open source platforms for online video delivery were evaluated in order to find optimal solution in developing the ICT countries’ market. The paper draws upon literature reviews to address the development trends in online video delivery and presents the advantages of using open source video platforms. In order to reduce the costs of service realization and possibilities for expansion of the system for online video delivery, the four open source video platforms were tested in real test environment and the differences between them were analyzed. The experiment was performed by analyzing the online video advertising as a good example of online information delivery application. The scientific and systematic method for open source video online serving platforms evaluation, that can enable project designers to determine the important factors for the implementation of online video delivery systems, was proposed. Furthermore, this study focuses on the characteristics that open source platforms offer in order to overcome problems related to the development of the ICT countries’ markets.
Reassessment of the conservation status of the Iberian lynx Lynx pardinus for the IUCN Red List of Threatened Species
Authors: Rodríguez Alejandro , Calzada Javier
Published: December 2017

During the last 70 years, the Iberian lynx Lynx pardinus has experienced dramatic changes in its environment, range size, and population size. In a context of widespread support for Iberian lynx conservation, its recent downgrading from Critically Endangered to Endangered in the IUCN Red List has drawn some public concern. Here we expand the summarized account published in the IUCN Red List website to illustrate how assessments are performed in well studied species. Assessment requires assignment to the highest threat category for which the species qualifies according to any of five criteria. Using 2012 as the reference year, no decline was observed during the last three lynx generations, and criteria regarding Population size reduction (A1, A2 and A4) were not met. Under criterion B (Geographic range) the species should be listed as Vulnerable. Considering Criterion D (Very small or restricted population), the Iberian lynx should be assigned to the Endangered category because in 2012 the estimated number of mature individuals (168) was under the established threshold of 250. A complex population model incorporating the combined effects of climate change, prey availability and conservation strategies reveals the critical need of maintaining current reintroduction efforts to avoid lynx extinction. If this condition is fulfilled, the species should be downgraded to Endangered under criterion E (Quantitative analysis). If reintroductions are discontinued, the category Endangered would be assigned under criteria A3 (Projected population reduction) and C (Small population and decline). We discuss the objectivity, transparency and conservation implications of the Iberian lynx downlisting.
History and Its Objects
Authors: Miller Peter N.
Published: December 2017

Cultural history is increasingly informed by the history of material culture—the ways in which individuals or entire societies create and relate to objects both mundane and extraordinary—rather than on textual evidence alone. Books such as The Hare with Amber Eyes and A History of the World in 100 Objects indicate the growing popularity of this way of understanding the past. This book uncovers the forgotten origins of our fascination with exploring the past through its artifacts by highlighting the role of antiquarianism—a pursuit ignored and derided by modem academic history—in grasping the significance of material culture. From the efforts of Renaissance antiquarians, who reconstructed life in the ancient world from coins, inscriptions, seals, and other detritus, to amateur historians in the nineteenth century working within burgeoning national traditions, the book connects collecting—whether by individuals or institutions—to the professionalization of the historical profession, one which came to regard its progenitors with skepticism and disdain. The struggle to articulate the value of objects as historical evidence, then, lies at the heart both of academic history writing and of the popular engagement with things. Ultimately, this book demonstrates that our current preoccupation with objects is far from novel and reflects a human need to re-experience the past as a physical presence.
Traditional Religious Beliefs of Tropical Africa Peoples in the Collections of Kazan University Ethnographic Museum
Authors: Titova Tatyana A. , Gushchina Elena G. , Frolova Elena V.
Published: December 2017

The interest regarding to African cultural values has intensified in all countries of the African continent in the second half of the twentieth - early twenty-first century. The aim of the article is to analyze the traditional religious beliefs of Tropical Africa peoples. The interdisciplinary approach that allows us to consider social realities in the context of historical and cultural changes has become the leading one to the study of this problem. The article shows the role of religion in African society. They considered the system of traditional beliefs and cults, the main forms of religious beliefs, as well as the diversity of religious attributes and its use on the basis of materials from the museum collection of the Ethnographic Museum of the University. The materials of the article can be useful for ethnologists, anthropologists, museum staff and everyone who is interested in this topic.
Formoterol attenuates increased oxidative stress and myosin protein loss in respiratory and limb muscles of cancer cachectic rats
Authors: Salazar-Degracia Anna , Busquets Sílvia , Argilés Josep M. , López-Soriano Francisco J. , Barreiro Esther
Published: December 2017

Muscle mass loss and wasting are characteristic features of patients with chronic conditions including cancer. Therapeutic options are still scarce. We hypothesized that cachexia-induced muscle oxidative stress may be attenuated in response to treatment with beta2-adrenoceptor-selective agonist formoterol in rats. In diaphragm and gastrocnemius of tumor-bearing rats (108 AH-130 Yoshida ascites hepatoma cells inoculated intraperitoneally) with and without treatment with formoterol (0.3 mg/kg body weight/day for seven days, daily subcutaneous injection), redox balance (protein oxidation and nitration and antioxidants) and muscle proteins (1-dimensional immunoblots), carbonylated proteins (2-dimensional immunoblots), inflammatory cells (immunohistochemistry), and mitochondrial respiratory chain (MRC) complex activities were explored. In the gastrocnemius, but not the diaphragm, of cancer cachectic rats compared to the controls, protein oxidation and nitration levels were increased, several functional and structural proteins were carbonylated, and in both study muscles, myosin content was reduced, inflammatory cell counts were greater, while no significant differences were seen in MRC complex activities (I, II, and IV). Treatment of cachectic rats with formoterol attenuated all the events in both respiratory and limb muscles. In thisin vivomodel of cancer-cachectic rats, the diaphragm is more resistant to oxidative stress. Formoterol treatment attenuated the rise in oxidative stress in the limb muscles, inflammatory cell infiltration, and the loss of myosin content seen in both study muscles, whereas no effects were observed in the MRC complex activities. These findings have therapeutic implications as they demonstrate beneficial effects of the beta2agonist through decreased protein oxidation and inflammation in cachectic muscles, especially the gastrocnemius.
Sr‐Nd‐Hf Isotopic Analysis of <10 mg Dust Samples: Implications for Ice Core Dust Source Fingerprinting
Authors: Újvári Gábor , Wegner Wencke , Klötzli Urs , Horschinegg Monika , Hippler Dorothee
Published: December 2017

Combined Sr‐Nd‐Hf isotopic data of two reference materials (AGV‐1/BCR2) and 50, 10, and 5 mg aliquots of carbonate‐free fine grain (<10 μm) separates of three loess samples (Central Europe/NUS, China/BEI, USA/JUD) are presented. Good agreement between measured and reference Sr‐Nd‐Hf isotopic compositions (ICs) demonstrate that robust isotopic ratios can be obtained from 5 to 10 mg size rock samples using the ion exchange/mass spectrometry techniques applied. While 87Sr/86Sr ratios of dust aluminosilicate fractions are affected by even small changes in pretreatments, Nd isotopic ratios are found to be insensitive to acid leaching, grain‐size or weathering effects. However, the Nd isotopic tracer is sometimes inconclusive in dust source fingerprinting (BEI and NUS both close to ɛNd(0) –10). Hafnium isotopic values (<10 μm fractions) are homogenous for NUS, while highly variable for BEI. This heterogeneity and vertical arrays of Hf isotopic data suggest zircon depletion effects toward the clay fractions (<2 μm). Monte Carlo simulations demonstrate that the Hf IC of the dust <10 μm fraction is influenced by both the abundance of zircons present and maturity of crustal rocks supplying this heavy mineral, while the <2 μm fraction is almost unaffected. Thus, ɛHf(0) variations in the clay fraction are largely controlled by the Hf IC of clays/heavy minerals having high Lu/Hf and radiogenic 176Hf/177Hf IC. Future work should be focused on Hf IC of both the <10 and <2 μm fractions of dust from potential source areas to gain more insight into the origin of last glacial dust in Greenland ice cores.
Observations of Dramatic Enhancements to the Mesospheric K Layer
Authors: Jiao J. , Yang G. , Wang J. , Feng W. , Plane J. M. C.
Published: December 2017

Highly concentrated layers of atomic K have been observed in the mesosphere above Yanqing near Beijing (40°N, 116°E). The K density in these narrow layers exceeds 1,100 cm−3 (at least 4 times higher than reported elsewhere), and the K/Na ratio is superchondritic by a factor of 3–4. A model with detailed metal ion chemistry, supported by ancillary measurements from a nearby ionosonde and meteor radar, is used to show that these sporadic K layers can be produced from a strong sporadic E layer (critical frequency > 11 MHz) that descends from above 100 km at a velocity of 1–2 km h−1. This allows most of the Na+ ions to be neutralized before the remaining ions are dumped around 90 km, where the higher pressures and colder temperatures facilitate the formation of K+.N2 and K+.CO2 cluster ions. These cluster ions then undergo dissociative recombination with electrons to form K.
An Optimally Stable and Accurate Second‐Order SSP Runge‐Kutta IMEX Scheme for Atmospheric Applications
Authors: Rokhzadi Arman , Mohammadian Abdolmajid , Charron Martin
Published: December 2017

The objective of this paper is to develop an optimized implicit‐explicit (IMEX) Runge‐Kutta scheme for atmospheric applications focusing on stability and accuracy. Following the common terminology, the proposed method is called IMEX‐SSP2(2,3,2), as it has second‐order accuracy and is composed of diagonally implicit two‐stage and explicit three‐stage parts. This scheme enjoys the Strong Stability Preserving (SSP) property for both parts. This new scheme is applied to nonhydrostatic compressible Boussinesq equations in two different arrangements, including (i) semiimplicit and (ii) Horizontally Explicit‐Vertically Implicit (HEVI) forms. The new scheme preserves the SSP property for larger regions of absolute monotonicity compared to the well‐studied scheme in the same class. In addition, numerical tests confirm that the IMEX‐SSP2(2,3,2) improves the maximum stable time step as well as the level of accuracy and computational cost compared to other schemes in the same class. It is demonstrated that the A‐stability property as well as satisfying “second‐stage order” and stiffly accurate conditions lead the proposed scheme to better performance than existing schemes for the applications examined herein.
Nonlocality of Tropical Cyclone Activity in Idealized Climate Simulations
Authors: Frisius T. , Abdullah S. M. A.
Published: December 2017

The response of tropical cyclone activity in the predicted warmer future climate is still a topic of scientific research. However, by the nonlocality hypothesis, tropical cyclone activity depends rather on relative than absolute sea surface temperature (SST). This hypothesis is investigated through idealized experiments performed with the global atmospheric climate model PlaSim. The model includes a prescribed SST and adopts a spectral resolution of T170 for resolving tropical cyclones. An idealized land‐sea configuration with two oceans and two continents has been used to study the nonlocality mechanism. The sensitivity experiments WARMBASIN and COLDBASIN include a positive and negative SST anomaly of 2.5 K in the northeastern basin. The tropical cyclone activity in the control run is similar in all four ocean basins while experiment WARMBASIN simulates a striking local increase of tropical cyclones. However, they nearly vanish in the other three ocean basins. The response is weaker and in the opposite way in COLDBASIN with a local reduction and a nonlocal increase. Analysis of well‐known cyclogenesis indices shows that nonlocality could be explained by the vorticity, relative humidity, and upper tropospheric temperature changes in experiment WARMBASIN while only vorticity is in agreement with nonlocality in experiment COLDBASIN. The vorticity anomalies determine the presence or absence of a steady state large‐scale low at the location where tropical cyclones favorably form. This low is modified by an SST‐induced change of a Walker‐like planetary circulation.