bluuebunny/crossref_metadata_2025 huggingface dataset:
Los “archivos trofeo” rusos de la Gestapo y del servicio de inteligencia alemán (1912-1945) como indicio del despliegue panóptico anticomunista en América Latina
Authors: Calsapeu Losfeld Brice
Published: November 2018

El trabajo está enfocado en la presentación de los “archivos trofeo” que los soviéticos confiscaron a las autoridades alemanas durante la Segunda Guerra Mundial, a través de algunos documentos – seleccionados por su interés para la historia iberoamericana del periodo–, que puntualizan lo que podrían ser embriones de redes anticomunistas y de colaboración internacional contra el comunismo, que empezaron a formarse bajo la República de Weimar, lo cual plantea un nuevo enfoque de estudio de las relaciones entre Alemania y los países latinoamericanos en este periodo.
Expediente del reparto de bienes comunales en Tancítaro, Michoacán
Authors: Venegas González Alicia
Published: November 2018

El presente trabajo corresponde a los avances de catalogación de la serie documental “Hijuelas”, libros 5 y 6, distrito de Uruapan, comunidad indígena de Tancítaro, 1872-1911. Fondo: Secretaría de Gobierno. Sección: Gobernación, resguardada en el Archivo General Histórico del Poder Ejecutivo de Michoacán (AGHPEM); documentos generados por el proceso de reparto de bienes comunales realizado durante el siglo XIX en Michoacán. Consta de una breve historia, contenido y servicios del AGHPEM, (organismo que los custodia); un estudio institucional de la Secretaría de Gobierno como entidad generadora de la documentación en cuestión; descripción de la serie documental Hijuelas; así como un análisis archivístico del expediente del reparto de bienes comunales en Tancítaro, desde su génesis hasta su destino final.
Evaluación del desempeño del docente universitario y construcción de una cultura evaluativa integral
Authors: Maussa Diaz Esnares , Hernández romero Felipe
Published: November 2018

Objetivo:  Analizar el sistema de evaluación del desempeño docente universitario y sus posibilidades de desarrollar una cultura evaluativa integral al hacer significativa la comprensión del quehacer del profesorado universitario en la formación de competencias profesionales y ciudadanas, contextualizadas a las realidades en las que se encuentra inmerso. Metodología: Mediante estrategias mixtas de interpretación y análisis de información, se aplica la complementariedad metodológica. Resultados y conclusiones: Los resultados muestran que los proceso de evaluación coevaluación y heteroevaluación que se practican, participan en la mejora continua y calidad de los procesos de formación.  El foco de los hallazgos revela la interrelación de los ámbitos personal, disciplinar y pedagógico, como insumo en la evaluación integral y la investigación sobre el desempeño docente.
Tensiones en la evaluación del desempeño docente
Authors: Maussa  Díaz Esnares
Published: November 2018

Objetivo: Presentar los resultados de investigación sobre la evaluación del desempeño docente y las tensiones que se suceden, considerando la actuación de los docentes como fundamental para alcanzar el aprendizaje. Metodología: cualitativa, mediante análisis documental que da voz a las audiencias, también observaciones directas, entrevistas semiestructuradas en conversatorios temáticos. Resultados y conclusiones: Los hallazgos determinan que la política evaluativa genera tensiones originadas en la desconfianza de docentes y agremiaciones a la utilización de las evaluaciones, al responder a políticas excluyentes y antisoberanas, que aumentan la cobertura a costa del hacinamiento, la dotación de las escuelas y el menoscabando la profesión.
Competencias ciudadanas desde la perspectiva de la Lectura Crítica en la Educación Universitaria
Authors: Samper Ibáñez Jacqueline Esther , Ospino Rihaza Ivett Alicia
Published: November 2018

Objetivo: Fortalecer las competencias ciudadanas a través de la lectura crítica en la educación universitaria.  Metodología: El diseño metodológico se enmarcó en una investigación sistemática y empírica. Se tomó como muestra a los estudiantes de las asignaturas de Constitución Política y Construcción Textual en de la Universidad de la Costa. Los hallazgos encontrados a través de las encuestas, evidenciaron las falencias existentes en cuanto a la interpretación de los componentes de la competencia ciudadana. Resultados y conclusiones: El resultado de esta investigación, puede ser resumido en que la comunidad educativa, objeto de estudio, recibe con beneplácito la iniciativa de fortalecer las competencias ciudadanas y la lectura crítica a partir de una estrategia didáctica.
Muslimische Politikerinnen in Deutschland: Erfolgsmuster und Hindernisse politischer Repräsentation
Authors: Jenichen Anne
Published: November 2018

Muslimische Frauen sind in der deutschen Politik unterrepräsentiert. Aus einer intersektionalen Perspektive und auf Grundlage qualitativer Interviews mit muslimischen Politikerinnen identifiziert der Artikel Hindernisse und förderliche Faktoren für die politische Repräsentation muslimischer Frauen in Deutschland. Die Analyse macht deutlich, dass für die Unterrepräsentation eine Kombination aus eingeschränktem Kandidatinnenpool und noch unzureichenden Bemühungen der Parteien verantwortlich ist. Insgesamt ähneln die Hindernisse und Erfolgsfaktoren denen, die bereits für Politikerinnen mit Migrationshintergrund herausgearbeitet wurden. Gleichzeitig wird jedoch deutlich, dass Religion als Differenzkategorie quer zu Migrationshintergrund liegt. Die Ergebnisse weisen darauf hin, dass Religion gesondert von Migrationshintergrund zu betrachten ist, wenn Hindernisse, insbesondere für sichtbare Minderheiten, in der Politik genauer erfasst werden sollen.
Gendered Segregation in Danish Standing Parliamentary Committees 1990-2015
Authors: Fiig Christina
Published: November 2018

Denmark was among the first countries to achieve female enfranchisement to the national parliament (1915) and it is a society with a long tradition for gender equality policies and women’s rights. 100 years later, the Danish case gives grounds for reflections on gender balance, on segregation and positions occupied by women in national parliaments. Drawing on insights from literature on gender and politics and on parliamentary committees, the article asks what the gendered distribution of seats and chairs is in the Danish parliament, the Folketing, and what can explain these gendered patterns. To answer these questions, this article investigates the horizontal and vertical gendered segregation of standing parliamentary committees of the Danish parliament 1990-2015 based on an explorative, longitudinal study. The results show that the Danish parliament is characterized by both vertical and horizontal segregation in relation to parliamentary committees. Both categories of segregation are declining over time, but the analysis reveals interesting patterns of change and stability especially for the horizontal segregation. Several committees have an over-representation (social, education and research and health) and under-representation of women (defence, finance and transport). A number of committees are characterized by a share of 30-40% women. This category is especially interesting as it points towards a decline in horizontal representation.
CO oxidation over Pt-modified CuO catalysts in the presence of water vapour and SO2
Authors: Nguyen Tri , Ha Anh Cam , Luu Loc Cam , Hoang Cuong Tien , Trinh Thi Thi Yen , Nguyen Phuong Thi Loan , Agafonov Yu. A. , Gaidai N. A.
Published: November 2018

The optimal Pt-modified CuO supported on γ-Al2O3 and γ-Al2O3 + CeO2 catalysts have been prepared. Physico-chemical characteristics of catalysts were investigated and determined by the methods of N2 adsorption (BET), X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), temperature-programmed reduction (TPR), and hydrogen pulse chemisorption (HPC). The characteristics of carbon monoxide (CO) adsorption on catalysts were defined by the method of infrared spectroscopy (IR) in the range of 4000 – 400 cm-1. The effect of the mixture of water vapour and SO2 on the activity of these catalysts for the CO oxidation was assessed. Reactions were conducted at 200oC and 350oC in the absence and presence of the mixture of water vapour (1.1 mol %) and SO2 (0.0625 mol %). Concentrations of O2 and CO in the gas mixture were 9.2 mol % and 0.5 mol %, respectively. The results showed that in the catalysts there exist highly active centers Cu1+ and Pt2+. On the catalysts the adsorption of CO on Cu2+, Pt2+, CeO2, and γ - Al2O3 centres was observed. Addition of CeO2 led to increase the reductivity, CO adsorption but decrease in specific surface area of catalyst. The result PtCu/CeAl catalyst shown higher active, but lower stability compared to PtCu/Al catalyst. The mixture of water vapour and SO2 showed the reversible poisoning toward the Pt-CuO catalysts at a temperature of 350oC, but irreversible at 200oC
A study on equipment and experimental process of fresh vegetables handling practices
Authors: Tran Son Anh , Dang Ky Quang
Published: November 2018

The problem of pesticide residues in vegetables, especially leafy vegetable is the big concern to both customers and exporters. These days, plants, where people use postharvest technologies, are located in Cu Chi, Hoc Mon và Binh Chanh. Due to their simple and obsolete features, those technologies are in need of significant investment with a view to serving manufacture and accommodating customers' demand. This research aims at proposing a fresh vegetables handling process based on elements affecting the process by ultrasonic, micro bubbles and Ozone. The result of research is concentrated on studying, designing and implementing the equipment in line 200 kg/h productivity. It demonstrates an effective combination of cleaning and removing pesticide residues to the extent that is regulated by of Ministry of Health’s Food safety standards.
A Comparative Simulation Study of ARIMA and Fuzzy Time Series Model for Forecasting Time Series Data
Authors: Haji Haji A. , Sadik Kusman , Soleh Agus Mohamad
Published: November 2018

Simulation study is used when real world data is hard to ﬁnd or time consuming to gather and it involves generating data set by specific statistical model or using random sampling. A simulation of the process is useful to test theories and understand behavior of the statistical methods. This study aimed to compare ARIMA and Fuzzy Time Series (FTS) model in order to identify the best model for forecasting time series data based on 100 replicates on 100 generated data of the ARIMA (1,0,1) model.There are 16 scenarios used in this study as a combination between 4 data generation variance error values (0.5, 1, 3,5) with 4 ARMA(1,1) parameter values. Furthermore, The performances were evaluated based on three metric mean absolute percentage error (MAPE),Root mean squared error (RMSE) and Bias statistics criterion to determine the more appropriate method and performance of model. The results of the study show a lowest bias for the chen fuzzy time series model and the performance of all measurements is small then other models. The results also proved that chen method is compatible with the advanced forecasting techniques in all of the consided situation in providing better forecasting accuracy.
Argumentaciones, críticas y estrategias en el discurso judicial. Aproximación a las representaciones de género sobre los delitos sexuales en el Aguascalientes porfiriano
Authors: De la Torre Ibarra Salomón
Published: November 2018

Este texto se enfoca en las representaciones de género contenidas en los juicios por delitos sexuales como el estupro, el rapto y la violación, en la ciudad de Aguascalientes durante el porfiriato. El análisis de los documentos consultados da cuenta de un espacio de disputa desde el cual las autoridades judiciales plasmaron ideas, valoraciones, críticas, así como estrategias argumentativas en torno a los hombres y mujeres que cometieron alguna transgresión sexual. De esta manera, los distintos profesionistas que fungieron como abogado defensor, ministerio público y juez, ejercieron un poder que iba más allá de la normatividad, debido a que también evaluaban y criticaban conductas de una población particular desde un discurso de género.
Percepción de una intervención en modalidad electrónica por universitarios que consumen alcohol
Authors: Pérez Castro José Luis , Ortiz Noriega Silvia Jazmín , Vacio Muro Ma. De los Ángeles , Salazar Garza Martha Leticia
Published: November 2018

El presente trabajo tuvo como objetivo evaluar una página web de consejo breve valorando su utilidad, facilidad de uso, actitud, intención de uso, confianza percibida, riesgo percibido, así como por una lista de adjetivos dicotómicos y la identificación de ventajas y desventajas de la misma. Participaron 100 estudiantes de una universidad pública, 50 consumidores de alcohol sin riesgo y 50 en riesgo, quienes después de explorar la página web, la evaluaron considerando las variables mencionadas previamente en una sola sesión. Los datos se analizaron de manera descriptiva y se realizaron pruebas t para grupos independientes, a fin de identificar las diferencias entre los puntajes promedios para algunas de las variables evaluadas. Los datos mostraron diferencias significativas en relación con la facilidad de uso, actitud y confianza percibida entre los grupos; es decir, los universitarios sin riesgo percibieron mayor utilidad y facilidad en el uso de la página con una actitud más favorable, percibiéndola como confiable y sin riesgo de uso en comparación con los de riesgo. En general, los universitarios consideran que la página web puede ser útil, debido a que proporciona información relevante para el usuario sobre el consumo de alcohol.
Revisión sobre los factores relacionados con el consumo de tabaco en la mujer
Authors: Sánchez A. Johanna G. , Lira Mandujano Jennifer
Published: November 2018

l consumo de tabaco se considera un problema de salud pública tanto a nivel internacional como nacional. En la actualidad, es una de las primeras causas prevenibles de muerte en el mundo, y México es parte de esta realidad. Esto ha llevado a desarrollar políticas públicas e intervenciones dirigidas a alertar y eliminar el consumo de tabaco en la población, y en este esfuerzo por abordar la problemática, se ha encontrado que existen diferencias entre hombres y mujeres respecto a las características para abandonar y recaer en el consumo. Sin embargo, pese a los esfuerzos en los últimos años, el uso ha aumentado entre las mujeres, por lo cual resulta necesario establecer estrategias específicas para esta población. Entre los factores que se han destacado se encuentran: factores hormonales, afectos negativos, síntomas de depresión, síntomas de ansiedad, intensidad de los síntomas de abstinencia y las expectativas del consumo. A pesar de que existen características, hasta ahora las intervenciones han estado enfocadas a la población en general, aun cuando existen características que diferencian a los hombres de las mujeres y que influyen en el éxito del tratamiento, siendo un campo necesario de explotar. Por ello, la presente investigación tiene como objetivo realizar una revisión sobre la literatura en donde se ha reportado que existen variables específicas de las mujeres que inciden en el abandono y la recaída en el consumo de tabaco, con la visión de proponer estrategias de intervención específicas para esta población. Para ello se revisaron las bases de datos MedLine, PsycINFO y PubMed, entre los años 2006-2015.
Narrativas de la prensa escrita de Medellín como constructoras y difusoras de imaginarios sociales de las víctimas del conflicto en Colombia
Authors: Espinal Ramírez Luisa Fernanda , Mesa González Ana Isabel , Arboleda Ariza Juan Carlos
Published: November 2018

Esta investigación analizó cómo los medios de comunicación escritos de Medellín, El Mundo y El Colombiano, construyen y difunden imaginarios sociales sobre las víctimas del conflicto armado en Colombia, en el marco de los Diálogos de Paz que se desarrollan, desde el año 2012, en La Habana, Cuba, a través de las figuras retóricas empleadas en sus editoriales. La metodología utilizada para esta pesquisa fue de tipo cualitativo e implementó la técnica del Análisis Documental como estrategia para la recolección de datos y el Análisis del Discurso como estrategia para la comprensión y distinción de la construcción y la difusión de los imaginarios sociales identificados. Los hallazgos obtenidos de este proceso permiten afirmar que son los medios de comunicación quienes se atribuyen la voz de las víctimas, en la medida en que evidencian un conocimiento amplio sobre sus características, sobre las diferenciaciones que existen entre unas y otras y sobre las necesidades que parecen demandar del Proceso de Paz.
Trayectoria profesional femenina: contrastando modelos
Authors: Selva Olid Clara , Ruvalcaba Coyaso Francisco Javier
Published: November 2018

La trayectoria profesional femenina sigue siendo una temática de interés recurrente. Esto se explica por la multiplicidad de ámbitos de investigación, aproximaciones metodológicas y ópticas que presenta su estudio. El objetivo de este artículo es revisar los modelos de carrera identificados en la literatura especializada respecto al desarrollo profesional de la mujer hacia cargos directivos, contrastarlos y abordar las limitaciones más esgrimidas en estos trayectos. Tras la revisión realizada, los resultados apuntan a cuatro grandes agrupaciones o modelos de carrera que explican las trayectorias de la mujer hacia los cargos de dirección y una clasificación de desarrollo aplicable a cada uno de ellos. Como principal aportación, este trabajo articula los modelos de carrera presentes en el corpus literario, acota y vincula las limitaciones más presentes en la realidad laboral y rompe con caducas creencias que operan en el mundo profesional respecto a las trayectorias de las mujeres.
Monismo, dualismo mente-cuerpo y perezhivanie
Authors: Palacios Montoya José Carlos , Reynaga Estrada Pedro , Colunga Rodríguez Cecilia
Published: November 2018

Existe un debate abierto en diferentes frentes de la teorización en psicología y ciencias sociales. El debate radica en los efectos de posicionamientos dualistas en la producción y aplicación de conocimiento. Presentamos argumentos a favor de una postura integradora presente en la tradición histórico-cultural. Sostenemos que una alternativa a los dualismos es la perspectiva monista propuesta en la tradición histórica cultural a partir de sus raíces en la filosofía de Spinoza. Presentamos el termino perezhivanie como un concepto que conduce a una aproximación monista del problema mente-cuerpo.
Cruce de caminos: trabajo informal y economía social
Authors: Maza Díaz Cortés Octavio Martín , Pocoroba García Ángel Alejandro
Published: November 2018

La presente investigación es una discusión teórica que problematiza al autoempleo desde el trabajo informal (TI) y la economía social y solidaria (ESS), contextualizándola en la industria textil de Moroleón y Uriangato, Guanajuato. Se centra el autoempleo en las casas-taller porque es en este espacio donde se conjuga una doble cara: la solidaridad y la explotación. A pesar de que informalidad y economía social abordan el tema del autoempleo, éstas corresponden a lógicas diferentes. Ambas son opuestas a la economía capitalista; es decir, se les considera como alternativas al capital, pero se diferencian porque la primera persigue una cultura capitalista y la segunda se basa en prácticas de solidaridad donde el trabajo se antepone al capital. Sin embargo, TI y ES proporcionan ingresos para aquellas personas que se encuentran en situaciones desfavorables o han sido desplazados por la economía de mercado.
Jóvenes, trabajo y emancipación: llaga neoliberal de nuestro tiempo
Authors: Álvarez Cooper Olga Leticia
Published: November 2018

En el presente ensayo analizamos el desarrollo del neoliberalismo durante el siglo veinte e inicios del siglo veintiuno y la relación que guarda con la emergencia de lo juvenil. Interesa comprender el vínculo existente entre el programa neoliberal y la emancipación de los jóvenes; es decir, cómo los modelos laborales del siglo XXI han impactado las trayectorias rumbo a la independencia familiar y económica que se suponía inauguraban el tránsito de la condición juvenil a la adulta. Consideramos que las fuentes elegidas ayudan a entender de manera sintética la historia evolutiva del programa neoliberal y, a la par, permiten comprender el proceso de transformación de la condición juvenil.
Insulin administration Devices–an update
Authors: Yasmeen BH Nazma
Published: November 2018

Abstract not availableNorthern International Medical College Journal Vol.9(2) Jan 2018: 283-285
Mode of delivery and fetal outcome in meconium stained amniotic fluid in DMCH
Authors: Nesa Fazilatun , Chowdhury Fahmida , Yasmeen BH Nazma , Rahman Shabnam , Begum Nasreen , Hossain SK Akbar
Published: November 2018

Background : Meconium is a dark greenish mass of desquamated cells, mucus, and bile that accumulates in the bowel of a fetus and is typically discharged shortly after birth. Meconium stained amniotic fluid (MSAF) has long been considered to be a bad predictor of fetal outcome.Objective : The aim of this study was to determine if the perinatal outcome is affected by mode of delivery in meconium-stained amniotic fluid.Methodology : This ovservational study was carried out in the department of Obstetrics and Gynaecology in Dhaka Medical College Hospital from July 2016 to June 2017. A total of 204 women who satisfied the inclusion and exclusion criteria were taken for the study. The study group comprised of 102 women admitted in labour and having meconium stained amniotic fluid and 102 women in labour but having clear amniotic fluid were taken as comparision group.Results : The mean age was found 26.6±5.9 years in MSAF group and 26.2±5.0 years in clear liquor group. The mean gestational age was found 38.9±1.8 weeks in MSAF group and 38.5±1.3 weeks in clear liquor group. Risk factors were not statistically significant (p>0.05) between two groups. Forty-one (40.2%) patients had caesarian section in MSAF group and 19(18.6%) in clear liquor group. APGAR score at 1 minute and at 5 minute were statistically significant (p<0.05) between two groups. About 100(98.0%) babies were alive in MSAF group and 101(99.0%) in clear liquor group.Conclusion : Meconium stained amniotic fluid group was associated with higher rate of cesarean delivery, increased need for neonatal resuscitation, increased rate of PIH, pre-eclamsia, Oligohydramnios, IUGR, Post dated pregnancy, Rh incompatibility, GDM and long time hospital stay and hospital mortality.Northern International Medical College Journal Vol.9(2) Jan 2018: 304-307
III-Nitride Short Period Superlattices for Deep UV Light Emitters
Authors: Nikishin Sergey A.
Published: November 2018

III-Nitride short period superlattices (SPSLs), whose period does not exceed ~2 nm (~8 monolayers), have a few unique properties allowing engineering of light-emitting devices emitting in deep UV range of wavelengths with significant reduction of dislocation density in the active layer. Such SPSLs can be grown using both molecular beam epitaxy and metal organic chemical vapor deposition approaches. Of the two growth methods, the former is discussed in more detail in this review. The electrical and optical properties of such SPSLs, as well as the design and fabrication of deep UV light-emitting devices based on these materials, are described and discussed.
Liquid-Crystal-on-Silicon for Augmented Reality Displays
Authors: Huang Yuge , Liao Engle , Chen Ran , Wu Shin-Tson
Published: November 2018

In this paper, we review liquid-crystal-on-silicon (LCoS) technology and focus on its new application in emerging augmented reality (AR) displays. In the first part, the LCoS working principles of three commonly adopted LC modes—vertical alignment and twist nematic for amplitude modulation, and homogeneous alignment for phase modulation—are introduced and their pros and cons evaluated. In the second part, the fringing field effect is analyzed, and a novel pretilt angle patterning method for suppressing the effect is presented. Moreover, we illustrate how to integrate the LCoS panel in an AR display system. Both currently available intensity modulators and under-developing holographic displays are covered, with special emphases on achieving high image quality, such as a fast response time and high-resolution. The rapidly increasing application of LCoS in AR head-mounted displays and head-up displays is foreseeable.
Active Compact Wearable Body Area Networks for Wireless Communication, Medical and IoT Applications
Authors: Sabban Albert
Published: November 2018

The development of compact wearable antennas and transceivers for communication, IoT (Internet of Things), and biomedical systems will be presented in this paper. Development of Compact efficient wearable antennas is one of the major challenges in development of wearable communication, IoT, and medical systems. The main goal of wireless body area networks (BANs), WBANs, is to provide continuously medical data to the physician. Body area network (BAN) antennas should be flexible, lightweight, compact, and have low production cost. However, low efficiency is the major disadvantage of small printed antennas. Microstrip antennas resonant frequency is altered, due to environment conditions, different antenna locations, and different system operation modes. These disadvantages may be solved by using compact active and tunable antennas. A new class of wideband active wearable antennas for medical applications is presented in this paper. Amplifiers may be connected to the wearable antenna feed line to increase the system dynamic range. Small lightweight batteries supply the bias voltage to the active components. An active dual polarized antenna is presented in this paper. The active dual polarized antenna gain is 14 ± 3 dB for frequencies ranging from 380 to 600 MHz. The active transmitting dual polarized antenna output power is around 18 dBm. A voltage-controlled diode, varactor, may be used to control the antenna electrical performance at different environments. For example, an antenna located in patient stomach area has VSWR (Voltage Standing Wave Ratio) better than 2:1 at 434 MHz. However, if the antenna will be placed on the patient back, it may resonate at 420 MHz. By varying the varactor bias voltage, the antenna resonant frequency may be shifted from 420 to 434 MHz. An ultra-wideband passive and active printed slot antenna may be employed in wideband wearable communication systems. The active slot antenna gain is 13 ± 2 dB for frequencies from 800 MHz to 3 GHz.
Prolonged Waking and Recovery Sleep Affect the Serum MicroRNA Expression Profile in Humans
Authors: Weigend Susanne , Holst Sebastian C. , Meier Josefine , Brock Matthias , Kohler Malcolm , Landolt Hans-Peter
Published: November 2018

MicroRNAs (miRNAs) are small, abundant, non-coding RNA fragments that regulate gene expression and silencing at the post-transcriptional level. The miRNAs each control various downstream targets and play established roles in different biological processes. Given that miRNAs were recently proposed to contribute to the molecular control of sleep–wake regulation in animal models and narcoleptic patients, we investigated the impact of acute sleep deprivation on blood miRNA expression in healthy adult men of two different age groups. Twenty-two young (mean age: 24 ± 3 years) and nine older (65 ± 1 years) volunteers completed a controlled in-lab study, consisting of 8 h baseline sleep, followed by 40 h of extended wakefulness, and a 10-h recovery sleep opportunity. At the same circadian time in all three conditions (at 4:23 p.m. ± 23 min), qPCR expression profiling of 86 miRNAs was performed in blood serum. Thirteen different miRNAs could be reliably quantified and were analyzed using mixed-model ANOVAs. It was found that miR-30c and miR-127 were reliably affected by previous sleep and wakefulness, such that expression of these miRNAs was upregulated after extended wakefulness and normalized after recovery sleep. Together with previous findings in narcolepsy patients, our preliminary data indicate that miR-30c and its target proteins may provide a biomarker of elevated sleep debt in humans.
A Study on the Multi-Agent Based Comprehensive Benefits Simulation Analysis and Synergistic Optimization Strategy of Distributed Energy in China
Authors: Song Xiaohua , Shu Mengdi , Wei Yimeng , Liu Jinpeng
Published: November 2018

With the economic and social development of China, the continuous growth of the energy demand is the trend for now and the future. As a consequence, distributed energy, especially distributed electricity power generation, has received more and more attention. Thus, the scale and utilization level of distributed energy has been continuously improved. However, due to the limitations of current technologies, resources, policies and other issues, the comprehensive benefits and synergy levels of energy sources need to be greatly enhanced. Based on the system dynamics model, this paper examines the factors affecting the comprehensive benefits of distributed energy in China, screens the key subjects, and using the literature review method, combined with the existing literature analysis, constructs a comprehensive benefit evaluation index system and evaluates the comprehensive benefits through case analysis. This paper also sorts out the distributed energy-related Chinese government policies from 2001 to 2017, and considers the scale of distributed energy development, then divides it into two development stages. The synergetic entropy is used to analyze the synergetic development degree of the two-stage distributed energy entities. The synergistic optimization strategy is proposed from the Chinese government side, power supply side, power grid side and user side, which provides theoretical methods and optimization suggestions for improving the comprehensive benefits of distributed energy and promoting sustainable development of energy.
Study of the Intelligent Behavior of a Maximum Photovoltaic Energy Tracking Fuzzy Controller
Authors: Tchoketch Kebir Gul Filiz , Larbes Cherif , Ilinca Adrian , Obeidi Thameur , Tchoketch Kebir Selma
Published: November 2018

The Maximum Power Point Tracking (MPPT) strategy is commonly used to maximize the produced power from photovoltaic generators. In this paper, we proposed a control method with a fuzzy logic approach that offers significantly high performance to get a maximum power output tracking, which entails a maximum speed of power achievement, a good stability, and a high robustness. We use a fuzzy controller, which is based on a special choice of a combination of inputs and outputs. The choice of inputs and outputs, as well as fuzzy rules, was based on the principles of mathematical analysis of the derived functions (slope) for the purpose of finding the optimum. Also, we have proved that we can achieve the best results and answers from the system photovoltaic (PV) with the simplest fuzzy model possible by using only 3 sets of linguistic variables to decompose the membership functions of the inputs and outputs of the fuzzy controller. We compare this powerful controller with conventional perturb and observe (P&O) controllers. Then, we make use of a Matlab-Simulink® model to simulate the behavior of the PV generator and power converter, voltage, and current, using both the P&O and our fuzzy logic-based controller. Relative performances are analyzed and compared under different scenarios for fixed or varied climatic conditions.
Multiobjective Joint Economic Dispatching of a Microgrid with Multiple Distributed Generation
Authors: Hou Hui , Xue Mengya , Xu Yan , Tang Jinrui , Zhu Guorong , Liu Peng , Xu Tao
Published: November 2018

Based on the operation characteristics of each dispatch unit, a multi-objective hierarchical Microgrid (MG) economic dispatch strategy with load level, source-load level, and source-grid-load level is proposed in this paper. The objective functions considered are to minimize each dispatching unit’s comprehensive operating cost (COC), reduce the power fluctuation between the MG and the main grid connect line, and decrease the remaining net load of the MG after dispatch by way of energy storage (ES) and clean energy. Firstly, the load level takes electric vehicles (EVs) as a means of controlling load to regulate the MG’s load fluctuation using its energy storage characteristics under time-of-use (TOU) price. Then, in order to minimize the remaining net load of the MG and the COC of the ES unit through Multiobjective Particle Swarm Optimization (MPSO), the source-load level adopts clean energy and ES units to absorb the optimized load from the load level. Finally, the remaining net load is absorbed by the main grid and diesel engines (DE), and the remaining clean energy is sold to the main grid to gain benefits at the source-grid-load level. Ultimately, the proposed strategy is simulated and analyzed with a specific example and compared with the EVs’ disorderly charging operation and MG isolated grid operation, which verifies the strategy’s scientificity and effectiveness.
Towards Smart Florianópolis: What Does It Take to Transform a Tourist Island into an Innovation Capital?
Authors: Yigitcanlar Tan , Sabatini-Marques Jamile , Lorenzi Cibele , Bernardinetti Nathalia , Schreiner Tatiana , Fachinelli Ana , Wittmann Tatiana
Published: November 2018

During the last several decades, the diversification of economic activities has become a paramount policy for nations and cities with heavy dependence on a single economic driver. Particularly island economies, relying mainly on tourism income, are among the most vulnerable ones to the shocks of global financial crises. In the recent years, some of these tourist islands had attempts to diversify their economic activities by moving towards a knowledge and innovation economy. This paper places one of these islands—Florianópolis, the capital city of the Brazilian state of Santa Catarina—under the microscope to address the question of ‘what it takes to transform a tourist island into an innovation capital’. In order to tackle this question, the study examines economic, social, spatial, and governance conditions and performances, along with the plans and processes of Florianópolis in moving towards an internationally recognized smart innovation island. The methodologic approach includes systematic review of the literature and qualitative analysis of the key development domains of Florianópolis through the lens of knowledge-based urban development. The results of this study provide insights into how to transform a resource-based economy into a knowledge-based one—by disclosing the transition journey of Florianópolis, including progress, challenges, and the new path creation processes. The findings are particularly useful for tourist islands that are aiming for an aspiring knowledge-based urban development and smart city transformation.
Realistic Wind Farm Layout Optimization through Genetic Algorithms Using a Gaussian Wake Model
Authors: Kirchner-Bossi Nicolas , Porté-Agel Fernando
Published: November 2018

Wind Farm Layout Optimization (WFLO) can be useful to minimize power losses associated with turbine wakes in wind farms. This work presents a new evolutionary WFLO methodology integrated with a recently developed and successfully validated Gaussian wake model (Bastankhah and Porté-Agel model). Two different parametrizations of the evolutionary methodology are implemented, depending on if a baseline layout is considered or not. The proposed scheme is applied to two real wind farms, Horns Rev I (Denmark) and Princess Amalia (the Netherlands), and two different turbine models, V80-2MW and NREL-5MW. For comparison purposes, these four study cases are also optimized under the traditionally used top-hat wake model (Jensen model). A systematic overestimation of the wake losses by the Jensen model is confirmed herein. This allows it to attain bigger power output increases with respect to the baseline layouts (between 0.72% and 1.91%) compared to the solutions attained through the more realistic Gaussian model (0.24–0.95%). The proposed methodology is shown to outperform other recently developed layout optimization methods. Moreover, the electricity cable length needed to interconnect the turbines decreases up to 28.6% compared to the baseline layouts.
Modelling and Experimental Analysis of a Polymer Electrolyte Membrane Water Electrolysis Cell at Different Operating Temperatures
Authors: Liso Vincenzo , Savoia Giorgio , Araya Samuel Simon , Cinti Giovanni , Kær Søren Knudsen
Published: November 2018

In this paper, a simplified model of a Polymer Electrolyte Membrane (PEM) water electrolysis cell is presented and compared with experimental data at 60 °C and 80 °C. The model utilizes the same modelling approach used in previous work where the electrolyzer cell is divided in four subsections: cathode, anode, membrane and voltage. The model of the electrodes includes key electrochemical reactions and gas transport mechanism (i.e., H2, O2 and H2O) whereas the model of the membrane includes physical mechanisms such as water diffusion, electro osmotic drag and hydraulic pressure. Voltage was modelled including main overpotentials (i.e., activation, ohmic, concentration). First and second law efficiencies were defined. Key empirical parameters depending on temperature were identified in the activation and ohmic overpotentials. The electrodes reference exchange current densities and change transfer coefficients were related to activation overpotentials whereas hydrogen ion diffusion to Ohmic overvoltages. These model parameters were empirically fitted so that polarization curve obtained by the model predicted well the voltage at different current found by the experimental results. Finally, from the efficiency calculation, it was shown that at low current densities the electrolyzer cell absorbs heat from the surroundings. The model is not able to describe the transients involved during the cell electrochemical reactions, however these processes are assumed relatively fast. For this reason, the model can be implemented in system dynamic modelling for hydrogen production and storage where components dynamic is generally slower compared to the cell electrochemical reactions dynamics.
Nitrogen Nutrition of European Beech Is Maintained at Sufficient Water Supply in Mixed Beech-Fir Stands
Authors: Magh Ruth-Kristina , Yang Fengli , Rehschuh Stephanie , Burger Martin , Dannenmann Michael , Pena Rodica , Burzlaff Tim , Ivanković Mladen , Rennenberg Heinz
Published: November 2018

Research highlights: Interaction effects of coniferous on deciduous species have been investigated before the background of climate change. Background and objectives: The cultivation of European beech (Fagus sylvatica L.) in mixed stands has currently received attention, since the future performance of beech in mid-European forest monocultures in a changing climate is under debate. We investigated water relations and nitrogen (N) nutrition of beech in monocultures and mixed with silver-fir (Abies alba Mill.) in the Black Forest at different environmental conditions, and in the Croatian Velebit at the southern distribution limit of beech, over a seasonal course at sufficient water availability. Material and methods: Water relations were analyzed via δ13C signatures, as integrative measures of water supply assuming that photosynthesis processes were not impaired. N nutrition was characterized by N partitioning between soluble N fractions and structural N. Results: In the relatively wet year 2016, water relations of beech leaves, fir needles and roots differed by season, but generally not between beech monocultures and mixed cultivation. At all sites, previous and current year fir needles revealed significantly lower total N contents over the entire season than beech leaves. Fir fine roots exhibited higher or similar amounts of total N compared to needles. Correlation analysis revealed a strong relationship of leaf and root δ13C signatures with soil parameters at the mixed beech stands, but not at pure beech stands. While glutamine (Gln) uptake capacity of beech roots was strongly related to soil N in the monoculture beech stands, arginine (Arg) uptake capacities of beech roots were strongly related to soil N in mixed stands. Conclusions: Leaf N contents indicated a facilitative effect of silver-fir on beech on sites where soil total N concentrations where low, but an indication of competition effect where it was high. This improvement could be partially attributed to protein contents, but not to differences in uptake capacity of an individual N source. From these results it is concluded that despite similar performance of beech trees at the three field sites investigated, the association with silver-fir mediated interactive effects between species association, climate and soil parameters even at sufficient water supply.
Video-Based Human Action Recognition Using Spatial Pyramid Pooling and 3D Densely Convolutional Networks
Authors: Yang Wanli , Chen Yimin , Huang Chen , Gao Mingke
Published: November 2018

In recent years, the application of deep neural networks to human behavior recognition has become a hot topic. Although remarkable achievements have been made in the field of image recognition, there are still many problems to be solved in the area of video. It is well known that convolutional neural networks require a fixed size image input, which not only limits the network structure but also affects the recognition accuracy. Although this problem has been solved in the field of images, it has not yet been broken through in the field of video. To address the input problem of fixed size video frames in video recognition, we propose a three-dimensional (3D) densely connected convolutional network based on spatial pyramid pooling (3D-DenseNet-SPP). As the name implies, the network structure is mainly composed of three parts: 3DCNN, DenseNet, and SPPNet. Our models were evaluated on a KTH dataset and UCF101 dataset separately. The experimental results showed that our model has better performance in the field of video-based behavior recognition in comparison to the existing models.
Application of Hydrodynamic Cavitation Reactors for Treatment of Wastewater Containing Organic Pollutants: Intensification Using Hybrid Approaches
Authors: Thanekar Pooja , Gogate Parag
Published: November 2018

The concentration of hazardous pollutants in the wastewater streams has to keep below a certain level in order to comply with the stringent environmental laws. The conventional technologies for wastewater treatment have drawbacks in terms of limited applicability and efficiency. Utilization of hydrodynamic cavitation (HC) reactors for the degradation of pollutants at large scale has shown considerable promise over last few years, due to higher energy efficiencies and low cost operation based on lower consumption of chemicals for the treatment. The present work overviews the degradation of different pollutants, such as pharmaceuticals, pesticide, phenolic derivatives and dyes, as well as the treatment of real industrial effluents using hybrid methods based on HC viz. HC/H2O2, HC/Ozone, HC/Fenton, HC/Ultraviolet irradiations (UV), and HC coupled with biological oxidation. Furthermore, based on the literature reports, recommendations for the selection of optimum operating parameters, such as inlet pressure, solution temperature, initial pH and initial pollutant concentration have been discussed in order to maximize the process intensification benefits. Moreover, hybrid methods based on HC has been demonstrated to show good synergism as compared to individual treatment approach. Overall, high energy efficient wastewater treatment can be achieved using a combined treatment approach based on HC under optimized conditions.
A Functional Connection between the Circadian Clock and Hormonal Timing in Arabidopsis
Authors: Singh Manjul , Mas Paloma
Published: November 2018

The rotation of the Earth entails changes in environmental conditions that pervasively influence an organism’s physiology and metabolism. An internal cellular mechanism known as the circadian clock acts as an internal timekeeper that is able to perceive the changes in environmental cues to generate 24-h rhythms in synchronization with daily and seasonal fluctuations. In plants, the circadian clock function is particularly important and regulates nearly every aspect of plant growth and development as well as proper responses to stresses. The circadian clock does not function in isolation but rather interconnects with an intricate network of different pathways, including those of phytohormones. Here, we describe the interplay of the circadian clock with a subset of hormones in Arabidopsis. The molecular components directly connecting the circadian and hormone pathways are described, highlighting the biological significance of such connections in the control of growth, development, fitness, and survival. We focus on the overlapping as well as contrasting circadian and hormonal functions that together provide a glimpse on how the Arabidopsis circadian system regulates hormone function in response to endogenous and exogenous cues. Examples of feedback regulation from hormone signaling to the clock are also discussed.
DNA Aptamers for the Functionalisation of DNA Origami Nanostructures
Authors: Sakai Yusuke , Islam Md. Sirajul , Adamiak Martyna , Shiu Simon Chi-Chin , Tanner Julian Alexander , Heddle Jonathan Gardiner
Published: November 2018

DNA origami has emerged in recent years as a powerful technique for designing and building 2D and 3D nanostructures. While the breadth of structures that have been produced is impressive, one of the remaining challenges, especially for DNA origami structures that are intended to carry out useful biomedical tasks in vivo, is to endow them with the ability to detect and respond to molecules of interest. Target molecules may be disease indicators or cell surface receptors, and the responses may include conformational changes leading to the release of therapeutically relevant cargo. Nucleic acid aptamers are ideally suited to this task and are beginning to be used in DNA origami designs. In this review, we consider examples of uses of DNA aptamers in DNA origami structures and summarise what is currently understood regarding aptamer-origami integration. We review three major roles for aptamers in such applications: protein immobilisation, triggering of structural transformation, and cell targeting. Finally, we consider future perspectives for DNA aptamer integration with DNA origami.
A Two-Cohort RNA-seq Study Reveals Changes in Endometrial and Blood miRNome in Fertile and Infertile Women
Authors: Rekker Kadri , Altmäe Signe , Suhorutshenko Marina , Peters Maire , Martinez-Blanch Juan F. , Codoñer Francisco M. , Vilella Felipe , Simón Carlos , Salumets Andres , Velthut-Meikas Agne
Published: November 2018

The endometrium undergoes extensive changes to prepare for embryo implantation and microRNAs (miRNAs) have been described as playing a significant role in the regulation of endometrial receptivity. However, there is no consensus about the miRNAs involved in mid-secretory endometrial functions. We analysed the complete endometrial miRNome from early secretory (pre-receptive) and mid-secretory (receptive) phases from fertile women and from patients with recurrent implantation failure (RIF) to reveal differentially expressed (DE) miRNAs in the mid-secretory endometrium. Furthermore, we investigated whether the overall changes during early to mid-secretory phase transition and with RIF condition could be reflected in blood miRNA profiles. In total, 116 endometrial and 114 matched blood samples collected from two different population cohorts were subjected to small RNA sequencing. Among fertile women, 91 DE miRNAs were identified in the mid-secretory vs. early secretory endometrium, while no differences were found in the corresponding blood samples. The comparison of mid-secretory phase samples between fertile and infertile women revealed 21 DE miRNAs from the endometrium and one from blood samples. Among discovered novel miRNAs, chr2_4401 was validated and showed up-regulation in the mid-secretory endometrium. Besides novel findings, we confirmed the involvement of miR-30 and miR-200 family members in mid-secretory endometrial functions.