bluuebunny/crossref_metadata_2025 huggingface dataset:
Fengycin Produced by Bacillus amyloliquefaciens FZB42 Inhibits Fusarium graminearum Growth and Mycotoxins Biosynthesis
Authors: Hanif Alvina , Zhang Feng , Li Pingping , Li Chuchu , Xu Yujiao , Zubair Muhammad , Zhang Mengxuan , Jia Dandan , Zhao Xiaozhen , Liang Jingang , Majid Taha , Yan Jingyuau , Farzand Ayaz , Wu Huijun , Gu Qin , Gao Xuewen
Published: May 2019

Fusarium graminearum is a notorious pathogen that causes Fusarium head blight (FHB) in cereal crops. It produces secondary metabolites, such as deoxynivalenol, diminishing grain quality and leading to lesser crop yield. Many strategies have been developed to combat this pathogenic fungus; however, considering the lack of resistant cultivars and likelihood of environmental hazards upon using chemical pesticides, efforts have shifted toward the biocontrol of plant diseases, which is a sustainable and eco-friendly approach. Fengycin, derived from Bacillus amyloliquefaciens FZB42, was purified from the crude extract by HPLC and further analyzed by MALDI-TOF-MS. Its application resulted in structural deformations in fungal hyphae, as observed via scanning electron microscopy. In planta experiment revealed the ability of fengycin to suppress F. graminearum growth and highlighted its capacity to combat disease incidence. Fengycin significantly suppressed F. graminearum, and also reduced the deoxynivalenol (DON), 3-acetyldeoxynivalenol (3-ADON), 15-acetyldeoxynivalenol (15-ADON), and zearalenone (ZEN) production in infected grains. To conclude, we report that fengycin produced by B. amyloliquefaciens FZB42 has potential as a biocontrol agent against F. graminearum and can also inhibit the mycotoxins produced by this fungus.
Bacterial Lipopolysaccharide Induced Alterations of Genome-Wide DNA Methylation and Promoter Methylation of Lactation-Related Genes in Bovine Mammary Epithelial Cells
Authors: Chen Jingbo , Wu Yongjiang , Sun Yawang , Dong Xianwen , Wang Zili , Zhang Zhu , Xiao Yanli , Dong Guozhong
Published: May 2019

Bacterial lipopolysaccharide (LPS) could result in poor lactation performance in dairy cows. High methylation of DNA is associated with gene repression. However, it is unclear whether LPS could suppress the expression of lactation-related genes by inducing DNA methylation. Therefore, the objective of this study was to investigate the impact of LPS on genome-wide DNA methylation, using methylated DNA immunoprecipitation with high-throughput sequencing (MeDIP-seq) and on the promoter methylation of lactation-related genes using MassArray analysis in bovine mammary epithelial cells. The bovine mammary epithelial cell line MAC-T cells were treated for 48 h with LPS at different doses of 0, 1, 10, 100, and 1000 endotoxin units (EU)/mL (1 EU = 0.1 ng). The results showed that the genomic methylation levels and the number of methylated genes in the genome as well as the promoter methylation levels of milk genes increased when the LPS dose was raised from 0 to 10 EU/mL, but decreased after further increasing the LPS dose. The milk gene mRNA expression levels of the 10 EU/mL LPS treatment were significantly lower than these of untreated cells. The results also showed that the number of hypermethylated genes was greater than that of hypomethylated genes in lipid and amino acid metabolic pathways following 1 and 10 EU/mL LPS treatments as compared with control. By contrast, in the immune response pathway the number of hypomethylated genes increased with increasing LPS doses. The results indicate LPS at lower doses induced hypermethylation of the genome and promoters of lactation-related genes, affecting milk gene mRNA expression. However, LPS at higher doses induced hypomethylation of genes involved in the immune response pathway probably in favor of immune responses.
Prevalence of Giardia intestinalis Infection in Schistosomiasis-Endemic Areas in South-Central Mali
Authors: Fofana Hassan K.M. , Schwarzkopf Maren , Doumbia Mama N. , Saye Rénion , Nimmesgern Anna , Landouré Aly , Traoré Mamadou S. , Mertens Pascal , Utzinger Jürg , Sacko Moussa , Becker Sören L.
Published: May 2019

Intestinal parasite infections are frequent causes of diarrhea and malnutrition among children in the tropics. Transmission of helminths and intestinal protozoa is intimately connected with conditions of poverty, including inadequate sanitation and hygiene. Concurrent infections with several intestinal pathogens may lead to excess morbidity. Yet, there is a paucity of epidemiological data from Mali. In this study, stool samples from 56 individuals, aged 2–63 years, from Bamako and Niono, south-central Mali were examined for intestinal parasites using stool microscopy. Additionally, stool samples were subjected to a rapid diagnostic test (RDT) and polymerase chain reaction (PCR) for the detection of Cryptosporidium spp. and Giardia intestinalis. The predominant pathogens were Schistosoma mansoni and G. intestinalis with prevalences of 41% and 38%, respectively. Hymenolepis nana was detected in 4% of the participants, while no eggs of soil-transmitted helminths were found. Concurrent infections with G. intestinalis and S. mansoni were diagnosed in 16% of the participants. For the detection of G. intestinalis, PCR was more sensitive (100%) than RDT (62%) and microscopy (48%). As helminth-protozoa coinfections might have important implications for morbidity control programs, future studies should employ diagnostic tools beyond stool microscopy to accurately assess the co-endemicity of giardiasis and schistosomiasis.
Erratum: Singh, S. et al. Ocular Manifestations of Emerging Flaviviruses and the Blood–Retinal Barrier. Viruses 2018, 10, 530
Authors: Singh Sneha , Farr Dustin , Kumar Ashok
Published: May 2019

The authors wish to correct the following erratum in this paper [...]
Variations in Illicit Compound Discharged from Treated Wastewater
Authors: Paciuszkiewicz Kasjan , Ryan Michelle , Wright Ian A. , Reynolds Jason K.
Published: May 2019

The detection and monitoring of illicit drug concentrations in environmental waters is of increasing interest. This study aimed to determine if illicit and regulated compounds, their potential pre-cursors, and metabolites varied in amount discharged into the environment from treated wastewater at different facilities. Water samples were taken from discharge points of four different tertiary wastewater treatment plants discharging directly into the Hawkesbury-Nepean River (Australia) on two different occasions and analysed to determine the concentrations of compounds including: ephedrine, pseudoephedrine, amphetamine, 3,4-methylenedioxyamphetamine, 3,4-methylenedioxymethamphetamine, methamphetamine, cocaine, and benzoylecgonine. Here, we show that detectable levels of illicit drug and metabolites are being emitted on a consistent basis after having persisted through the wastewater treatment process. The concentrations of methamphetamine are in excess of previously reported surface water concentrations. The estimated total load of compounds being discharged on a daily basis is greater than similar sized catchment areas. The results presented here are of concern from both an ecological and human health perspective.
Construction of Comprehensive Drought Monitoring Model in Jing-Jin-Ji Region Based on Multisource Remote Sensing Data
Authors: Yu Haozhe , Li Lijuan , Liu Yang , Li Jiuyi
Published: May 2019

Drought is a complex hazard that has more adverse effects on agricultural production and economic development. Studying drought monitoring techniques and assessment methods can improve our ability to respond to natural disasters. Numerous drought indices deriving from meteorological or remote sensing data are focused mainly on monitoring single drought response factors such as soil or vegetation, and the ability to reflect comprehensive information on drought was poor. This study constructed a comprehensive drought-monitoring model considering the drought factors including precipitation, vegetation growth status, and soil moisture balance during the drought process for the Jing-Jin-Ji region, China. The comprehensive drought index of remote sensing (CDIR), a drought indicator deduced by the model, was composed of the vegetation condition index (VCI), the temperature condition index (TCI), and the precipitation condition index (PCI). The PCI was obtained from the Tropical Rainfall Measuring Mission (TRMM) satellite. The VCI and TCI were obtained from a moderate-resolution imaging spectroradiometer (MODIS). In this study, a heavy drought process was accurately explored using the CDIR in the Jing-Jin-Ji region in 2016. Finally, a three-month scales standardized precipitation index (SPI-3), drought affected crop area, and standardized unit yield of wheat were used as validation to evaluate the accuracy of this model. The results showed that the CDIR is closely related to the SPI-3, as well as variations in the drought-affected crop area and standardized unit yield of crop. The correlation coefficient of the CDIR with SPI-3 was between 0.45 and 0.85. The correlation coefficient between the CDIR and drought affected crop was between −0.81 and −0.86. Moreover, the CDIR was positively correlated with the standardized unit yield of crop. It showed that the CDIR index is a decent indicator that can be used for integrated drought monitoring and that it can synthetically reflect meteorological and agricultural drought information.
“We Don’t Drink the Water Here”: The Reproduction of Undrinkable Water for First Nations in Canada
Authors: Baijius Warrick , Patrick Robert J.
Published: May 2019

First Nation communities in Canada are disproportionately plagued by undrinkable water and insufficient household sanitation. In addition, water resource management in First Nation communities has long been a technocratic and scientific mission controlled by state-led authorities. There has been limited engagement of First Nations in decision-making around water management and water governance. As such, problems associated with access to drinkable water and household sanitation are commonly positioned as hydrological or environmental problems (flood or drought) to be fixed by technical and engineering solutions. This apolitical reading has been criticized for not addressing the root cause of the First Nation water problem, but instead, of reproducing it. In this paper, an approach using political ecology will tease out key factors contributing to the current water problem in many First Nation communities. Using case study research set in source water protection planning, this paper explains how persistent colonial practices of the state continue to reproduce undrinkable water and insufficient household sanitation. Solutions to this ‘water problem’ require greater attention to First Nations water governance capacity and structures.
Simulation of Water Resources Carrying Capacity in Xiong’an New Area Based on System Dynamics Model
Authors: Sun Boyang , Yang Xiaohua
Published: May 2019

In order to comprehensively evaluate the water resources carrying capacity in Xiong’an New Area, a system dynamics (SD) model was established to evaluate the regional water resources carrying capacity, for which several scenarios were designed: the original development scenario, the accelerated industrialization scenario, the environmental governance scenario, and the optimization development scenario. The results show that, compared with the original development scenario, the water resources carrying capacity in Xiong’an New Area can be improved in other scenarios, but a water supply and demand gap will be generated due to the lack of groundwater overdraft and a water transfer project. In 2026, under the accelerated industrialization scenario, the population carrying capacity will be 2.652 million, and the water supply and demand gap will be 1.13 × 108 m3; under the environmental governance scenario, the population carrying capacity will be 2.36 million, and the water supply and demand gap will be 0.44 × 108 m3; under the optimal development scenario, the population carrying capacity will be 2.654 million, and since the supply of water resources will be greater than the demand, there will not be a gap between supply and demand, making it the most feasible scenario to effectively alleviate the tension between industry restructuring, environmental management, and water resources development and utilization. The findings of this study can provide reference and decision support for optimizing regional water resources allocation and enhancing water resources carrying capacity in Xiong’an New Area.
Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands
Authors: Liu Xiaoling , Wang Jingting , Fu Xiaoying , Luo Hongbing , Anderson Bruce C. , Zhang Ke , Li Mei , Huang Bo , Fan Liangqian , Yu Lijuan , He Guozhu , Zou Likou , Fu Shuzhi , Hu Limei , Jiang Mingshu
Published: May 2019

This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with Cyperus alternifolius L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH4 m−2 day−1 less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH4 m−2 day−1 less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6–6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH4-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH4-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH4 emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH4 emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands.
An Optimization-Evaluation Agricultural Water Planning Approach Based on Interval Linear Fractional Bi-Level Programming and IAHP-TOPSIS
Authors: Zhang Yan , Zhang Fan , Zhu Hua , Guo Ping
Published: May 2019

In this study, an interval linear fractional bi-level programming (ILFBP) model was developed for managing irrigation-water resources under uncertainty. The ILFBP can fully address system fairness, uncertainties, and the leader–follower relationship of decision makers in the optimization process, which can better reflect the complexity of real decision-making process and help formulate reasonable water policies. An interactive fuzzy coordination algorithm based on satisfaction degree was introduced to solve the ILFBP model. In order to evaluate the applicability of optimization schemes, the interval analytic hierarchy process (IAHP) and the interval technique for order preference by similarity to an ideal solution (TOPSIS) method were integrated as IAHP-TOPSIS. To verify its validity, the developed optimization-evaluation framework was applied to an irrigation water management case study in the middle reaches of the Shiyang River Basin, located in the northwest China. The ILFBP model results show that the total water allocation is [6.73, 7.37] × 108 m3, saving nearly 0.9 × 108 m3 more than the current situation. The benefit per unit of water is [2.38, 2.95] yuan/m3, nearly 0.4 yuan/m3 more than the status quo, and the Gini coefficient is within a reasonable range of [0.35, 0.38]. The ILFBP model can well balance economic benefits and system fairness. Through the evaluation bases on IAHP-TOPSIS, the results of ILFBP show better water allocation effects and applicability than the other two models in this study area. Furthermore, due to various characteristics such as geographical location, population and area, there are three irrigation districts, Xiying, Donghe, and Qinghe, showing higher importance than others when considering regional water allocation. These findings can provide useful information for limited water resource managers and help decision makers determine effective alternatives of water resource planning under uncertainty.
Implementation of an Energy Management Strategy with Drivability Constraints for a Dual-Motor Electric Vehicle
Authors: Wang Haiqing , Wu Hanfei
Published: May 2019

This paper presents a real-time energy management strategy to distribute the power demand between two independent motors properly. Based on the characteristics of the novel transmission system, an enumeration-based searching approach is used to hunt for the optimal working points for both motors to maximize the overall efficiency. Like many energy management strategies, approaches that focus on reducing energy consumption can result in frequent gearshifts. To improve drivability and make a balance between energy consumption and gearshifts, a cost function is designed. To verify the effectiveness of the proposed method, a mathematical model is built, and the simulation results demonstrate the achieved improvements.
Electric Safety Challenges with a Conductive Electric Road System—Chassis Potential Modeling and Measurement
Authors: Márquez-Fernández Francisco J. , Schuch Sönke , Lindgren Lars , Alaküla Mats
Published: May 2019

Conductive Electric Road Systems (ERS) appear as a promising solution for the electrification of transportation, particularly for heavy vehicles and long-distance trips but also for light vehicles. Significant research efforts are currently devoted to the development of conductive ERS systems, with up to four pilot test sites with different technologies in operation only in Sweden. With the help of electric models and experimental measurements on a pilot test track, this article assesses the potential safety challenges associated with one aspect of this technology: the absence of a reliable protective earth connection while the vehicle is connected to the ERS power supply. The results highlight the importance of monitoring the chassis potential at all times and the need of an active safety mechanism to disconnect the vehicle from the ERS supply if a severe fault occurs.
INTÉRPRETE DE LENGUAJE DE SIGNOS PARA LA COMUNICACIÓN DE PERSONAS CON DISCAPACIDAD AUDITIVA EMPLEANDO PROCESAMIENTO DE IMÁGENES
Authors: Parra Plaza Jaime Alberto
Published: May 2019

Se presenta una herramienta computacional basada en procesamiento de imágenes para asistir a las personas que presentan discapacidad auditiva. La herramienta está en capacidad de capturar una secuencia de imágenes que corresponde a los gestos que el usuario hace con sus manos para realizar alguno de los signos empleados para la comunicación no verbal. La herramienta somete esta información a una serie de etapas de procesamiento con miras a identifi car apropiadamente de qué gesto se trata y a emitir su equivalente textual. Los resultados obtenidos muestran que se logró identificar correctamente y en  diversidad de situaciones los signos correspondientes al lenguaje de signos americano, el más empleado a escala mundial y base del lenguaje colombiano. Más aún, la herramienta permite que el usuario cree sus propios signos, siendo de esta manera una herramienta no sólo de ayuda, sino también de soporte para la ulterior investigación en el área.
ADQUISICIÓN Y PROCESAMIENTO DE IMÁGENES MULTIESPECTRALES BIOLÓGICAS: UN CASO DE ESTUDIO EN TEJIDO CARDIOVASCULAR
Authors: Botina Monsalve Deivid Johan , Galeano July , Pérez Sandra , Garzón Johnson
Published: May 2019

Este artículo presenta el uso de técnicas de adquisición y procesamiento imágenes multi-espectrales para el análisis de tejido biológico, específi camente cardiovascular. Se presentan diferentes tipos de arquitecturas, tales como los basados en fi ltros de interferencia y los que no requieren el uso de estos fi ltros. También se presentan ventajas y desventajas de ambos sistemas, así como técnicas para la calibración del color y fuentes de ruido. Además, se presentan dos tipos de técnicas de procesamiento de imágenes biológicas: análisis de componentes principales (PCA) y análisis de componentes independientes (ICA). Estas técnicas se han utilizado en el análisis de imágenes biológicas tales como piel humana y tejido gástrico. Sin embargo, y hasta nuestro conocimiento, dichas técnicas no han sido ampliamente utilizados en el análisis de tejido cardiovascular, de modo que se hace un enfoque especial en este tipo de tejido. Como resultado, se encontró que los métodos de PCA e ICA permiten la obtención de imágenes con una mejor defi nición de la morfología del tejido cardiovascular.
PERSPECTIVAS DE LA FORMACIÓN PROFESIONAL EN COLOMBIA ENFOCADA EN EL SECTOR TURÍSTICO
Authors: Castillo-Palacio Marysol , Zuñiga-Collazos Alexander
Published: May 2019

Para los países latinoamericanos, el sector turismo representa una oportunidad de crecimiento, desarrollo económico y social. Sin embargo, en países como Colombia, la investigación y la formación de personal capacitado en este sector es aún defi ciente (Castillo et al., 2011). Los objetivos del estudio son: identifi car y analizar los programas académicos enfocados hacia el sector de turismo, ofertados en Colombia. La metodología utilizada para el estudio se centró en fuentes secundarias como el sistema general de información de la educación superior “SNIES” del Ministerio de Educación Nacional “MEN” de Colombia y las páginas web de las instituciones de educación superior colombianas que ofertan los programas en turismo. Finalmente, el estudio indica que los programas de pregrado en turismo son los de mayor oferta con respecto a los programas de posgrado en turismo.
EFECTO DE LA APLICACIÓN DE ONDAS DE ULTRASONIDO DE ALTA POTENCIA (25kHz) SOBRE LAS PROPIEDADES FISICOQUÍMICAS Y MICROBIOLÓGICAS DEL MÚSCULO SEMITENDINOSO LONGISSIMUS DE LA ESPECIE BOVINA.
Authors: Terán Acuña Natalia , Castro Alexander David , Porras Oscar Orlando
Published: May 2019

Se estudió la aplicación de ultrasonido de alta potencia como tecnología no química para mejoramiento de la calidad e inocuidad de la carne, evaluando los efectos de las ondas ultrasónicas sobre las propiedades fi sicoquímicas (pH, cenizas, acidez, actividad acuosa, humedad, capacidad de retención de agua) y microbiológicas (aerobios mesófi los, coliformes totales y fecales) del músculo semitendinoso Longissimus en bovinos machos entre los 4 y 5 años de edad con 12 horas de post-morten. Para el estudio, las muestras fueron sometidas de manera independiente y por triplicado, a tratamientos con ultrasonido a una frecuencia de 25 kHz, durante tiempos de exposición de 30, 45 y 60 minutos. Los resultados obtenidos fueron analizados mediante el software comercial SPSS versión21. Se calculó el análisis de varianza (ANOVA) con diseño completamente al azar y mínima diferencia significativa α= 0,05. Estos resultado mostraron que tras el tratamiento realizado, propiedades como el pH, la capacidad de retención de agua (CRA), cenizas, acidez y actividad acuosa (ɑw) no presentan cambios estadísticamente significativos (α=0,05), lo que evidencia que el tratamiento no afecta la calidad de la carne; por otro lado, la humedad del musculo presenta una disminución signifi cativa (α=0,05) debido a la cavitación producida por las ondas de ultrasonido, lo cual genera micro evaporación del agua, mientras que los efectos sobre la carga microbiana incidieron en la disminución de aerobios mesófi los y coliformes totales y fecales sobre el músculo, llegando a una inactivación microbiana con resultados favorables tras periodos de exposición de 60 minutos.
EXTRACCIÓN DE CARACTERÍSTICAS FRECUENCIALES EN REGISTROS EEG A PARTIR DE LA TRANSFORMADA WAVELET
Authors: Jaramillo García Alexander , Acosta García Daniel F. , Ochoa Gómez John F.
Published: May 2019

La identificación de características oscilatorias en señales electroencefalográficas (EEG) ha sido ampliamente estudiada debido al bajo costo de la técnica y la utilidad de la información que provee. En el presente trabajo se introduce un esquema para el estudio de registros EEG usando Wavelet en un grupo de sujetos sanos bajo dos condiciones: reposo y memoria. Se empleó la Transformada Discreta de Wavelet (DWT) para obtener coeficientes con información frecuencial y temporal. A continuación se extrajeron las diferencias asociadas al cambio de condición entre los ritmos cerebrales en un conjunto de regiones de análisis. Mediante análisis de varianza se encontró que el mayor aporte de variabilidad está relacionado con el ritmo þ y se verificó que el comportamiento de los ritmos a, þ y y concuerda con investigaciones previas sobre procesos de memoria. El esquema propuesto constituye un primer paso en la construcción de una metodologíadeanálisis orientada alestudio de sujetos con Enfermedad deAlzheimer.
EVALUATION AND COMPARISON USING ACTIVITY SIGNALS OF SPEECH METHODS IN RIVER PLATE SPANISH USING BEPPA CORPUS
Authors: Vrangel Robles Horderlin , Molina Valentin , Martinez Luis , Davila Hermann
Published: May 2019

The results obtained after comparing several algorithms which use basic methods of signal processing for speech activity detection of voice or VAD (Voice Activity Detection-VAD), were assessed in order to determine their effectiveness. The algorithms presented in this article are short-time or spectral energy based endpoint detection algorithm, the zero crossing rate method, and the higher order differential (High Order Difference, HOD) method. First, an introduction of the concept of VAD is presented and the need to apply such language algorithms in River Plate is Spanish. Then a summary of the state of the art techniques and algorithms for detecting voice activity is shown with evidence and experiments used to implement algorithms with BEPPA corpus (Evaluation Battery for Patients with Auditive Prostheses, BEPPA – in Spanish).
The synthesis of selenium nаnоpаrtiсle (SeNPs) – Review
Authors: Badgar Khandsuren
Published: May 2019

Selenium is an important dietary miсrоnutriеnt required for the nоrmаl physiоlоgy and mеtаbоlism of humans and аnimаls. The biоlоgicаl prоperties оf selenium nаnо pаrticle depend оn their size аnd fоrms. Sеlenium nаnоpаrticle (SeNPs) аttrасts еvеn mоrе аttеntiоn, thanks to its high biоаvаilаbility аnd muсh lоwеr tохiсity thаn inоrgаniс аnd оrgаniс fоrms. In this review, I summаrized the infоrmаtiоn аnd wаys оf prоductiоn оf selenium nаnоpаrticle. SeNPs hаve been prоduced in chemicаl, physicаl, аnd biоlоgicаl wаys. In recent years, biоlоgicаl wаys hаve been especially important in the prоductiоn оf selenium nanoparticles.
Studying the effects of traits in the genotype of three maize hybrids in Hungary
Authors: Nasir Mousavi Seyed Mohammad , Bodnár Karina Bianka , Nagy János
Published: May 2019

In this study, we selected three hybrids (Armagnac, Loupiac, and Sushi) for evaluation of the effect of traits in genotype in Debrecen. In 2017, the total rainfall from May to October was 314 mm in Debrecen, which was 236 mm in the winter period before sowing. The obtained results showed that there was a positive correlation between the weight of the cob maize and the rate of seed/cob, number of rows with number of seeds in column and outer diameter ear with weight of cob and number of rows in grain per ear and the rate of seed / cob; Also, there was a negative correlation between grain weight in ear with seed/cob rate, outer diameter ear and the rate of seed/cob and outer diameter ear with the number of leaves. There was a positive correlation between stem diameter, Seed/cob rate and the number of nodes by GGE biplot. In addition, there are traits of weight of all seeds and outer ear diameter that had the highest effect on average yield. Moreover, the number of seeds per row showed the least effect on the average yield of hybrids.
Investigation of the decomposition and leaching dynamics of Salix, Populus and mixed leaves in the area of Lake Balaton and Kis-Balaton Wetland
Authors: Simon Brigitta , Kucserka Tamás , Anda Angéla
Published: May 2019

In lakes and wetlands, leaf litter input from the coastal vegetation represents a major nutrient load and plays a basic structural and functional role in several ecosystems. In Hungary, at the banks of lakes and wetlands, Salix and Populus trees are the most common species. In an experiment in Lake Balaton and Kis-Balaton Wetland between 16 November 2017 to and 3 June 2018, the decomposition rates and leaching dynamics of Salix, Populus and mixed leaves (50% Salix and 50% Populus) were investigated. Total nitrogen and phosphorus content of biomass samples were measured at the beginning and end of the experiment for the leaching dynamics experiment. We found that litter mass losses (Salix, Populus and mixed leaves) were not significantly different between the two mesh size litterbags and between Lake Balaton and Kis-Balaton Wetland. Different amounts of the total nitrogen and phosphorus leaching from Salix, Populus and mixed leaves were detected. The total nitrogen contents of the plant samples were around 8-18% at the end of the investigated period. Slightly higher values were measured compared to phosphorous (27-29%).
BRAIN GYM DAPAT MERINGANKAN NYERI DISMENORE
Authors: Wulandari Dyah Ayu , Muawanah Anisatul
Published: May 2019

Menstruasi merupakan perubahan fisiologis pada wanita yang terjadi secara berkala dan dipengaruhi oleh hormon reproduksi. Periode ini penting dalam hal reproduksi, biasanya terjadi setiap bulan antara remaja sampai menopause. Prevalensi kejadian dismenore terjadi hampir pada semua wanita. Dengan rata-rata lebih dari 50% wanita disetiap Negara mengalami dismenore. Pada umumnya 50-60% wanita diantaranya memerlukan obat-obatan analgesik dan beberapa terapi untuk mengatasi dismenore. Ada berbagai cara atau metode yang digunakan untuk mengalihkan perhatian terhadap rasa nyeri yang dialaminya, antara lain: distraksi visual, distraksi pendengaran,distraksi pernafasan, tehnik pernafasan, imajinasi terbimbing, distraksi intelektual salah satunya adalah brain gym. Brain gym merupakan sebuah senam yang tujuan utamanya untukmempertahankan kesehatan otak dengancara melakukan gerakan badan. Penelitian ini bertujuan untuk mengetahuai pengaruh Brain Gym terhadap nyeri dismenore pada mahasiswa DIII Keperawatan STIKes Karya Husada Semarang. Quasi Eksperimental dengan rancangan one group pre and post test. Jumlah sampel 38 responden. dan analisis yang digunakan adalah Wilcoxon. diperoleh rerata sebelum sebesar 3.26 dan sesudah 5.92. Hasil uji Wilcoxon Signed Rank Test  dengan nilai p = 0,000, <α (0,05). Ada pengaruh Brain Gym terhadap penurunan nyeri dismenore pada mahasiswi D III Keperawatan Tingkat 1 STIKes Karya Husada Semarang.Kata kunci            :   Brain Gym dan Dismenore
MANFAAT SARI SARI KURMA DALAM MEMPERCEPAT PERSALINAN KALA 1
Authors: Astutti Lestari Puji , Puri Shyntia Estika , Prasida Dita Wasthu
Published: May 2019

Persalinan yang dimulai secara spontan dalam presentasi belakang kepala pada usia kehamilan 37-42 minggu lengkap dan setelah persalinan ibu maupun bayi berada dalam kondisi sehat. Dan partus lama merupakan alasan 68% seksio sesaria non elektif pada persentasi kepala. Sementara berdasarkan kelompok umur, kejadian kematian maternal terbanyak adalah pada usia 20-34 tahun sebesar 68,50%. Salah satu terapi nonfarmakologis untuk memicu kinerja hormone oksitosin guna mempercepat persalinan kala 1, dapat diberikan sari kurma. Yang mengandung hormone oksitosin yang akan menyebabkan kontraksi pada rahim. Tujuan dari penelitian ini adalah mengetahui pengaruh sari kurma terhadap kemajuan persalinan kala 1 fase aktif primigravida. Jenis penelitian ini menggunakan quasi eksperiment dengan desain pre test post test control grup desain . Sampel penelitian ini adalah ibu hamil 37 minggu primigravida. Subyeknya adalah 30 responden. Pengambilan data dilakukan dengan lembar observasi. Kemajuan persalinan diukur dengan lembar partograf. Penelitian ini dilakukan di RB Citra Insani pada bulan Januari 2018. Analisis bivariat menggunakan  uji t-test independent dengan hasil rata-rata lama persalinan kala 1 untuk kelompok control sebesar 253,67 menit dan untuk kelompok intervensi 233,00 menit. Hasil uji t-test menunjukkan pvalue=0,020. Ada pengaruh sari  kurma terhadap kemajuan persalinan kala 1 fase aktif primigravida. Ibu hamil usia 37-42 minggu dapat memanfaatkan sari  kurma untuk kemajuan persalinan nonfarmakologis. Kata Kunci: Persalinan; kala 1 fase aktif; Sari  kurma;
Accessibility to park in Łódź in view of individual transport, public transport and cycling
Authors: Borowska-Stefańska Marta , Wiśniewski Szymon
Published: May 2019

In this article, the goal was to assess spatial accessibility to the parks in Łódż for example of cycling, individual transport and public transport. Parks represent basic units of recreational greenery in the city. (Czerwieniec, Lewińska 2000). In Łódź are 43 parks, which are located mainly in the rail peripheral or right behind her (Jakóbczyk-Gryszkiewicz 2008). To determine the spatial accessibility to the parks in the analyzed city, were calculated the number and percentage of the population, which living in 2016 in isochrones: 0-5; 5-10; 10-15; 15-20; 20-25; 25-30 minutes from the parks. In the study were taken into account the different means of transport - car, bicycle and public. It was found that the most beneficial for the residents of the city is by bike. In the case of 3/4 of the population of Łódż travel time by bike to the park is less than 5 minutes. Bicycle and public transport provide access to the parks, the vast majority of inhabitants of the city in time to 5 minutes, while individual transport in time 5-10 minutes. Most preferably, due to the accessibility for the residents of the city, are located parks in the city center, and behind its borders, in turn, within the rail perimeter. Over there the population density is greatest, unfortunately, a small area of parks.
Influence of the use of spring vibration isolators in the construction of track pavement for damping vibrations from the track
Authors: Kwiatkowska Ewelina , Fiebig Wiesław
Published: May 2019

The paper presents tuned track bed vibration isolation systems used for the railway and tramway lines. The presented solution based on mass spring systems and is effective especially at lower frequencies. The tuning frequency of such systems is mostly in the range 5 to 8 Hz. With measures based on spring elements elaborated by GERB company the significant vibration and noise reduction coming from the railways and tramways can be achieved. This new technology in Poland can be used during the track structure modernization as well as in the new projects, in which the track bed vibration isolation is required.
El aprendizaje-servicio (APS) como práctica expansiva y transformadora
Authors: Ochoa Cervantes Azucena , Pérez Galván Luis Manuel , Salinas José Juan
Published: May 2019

La metodología de proyectos de Aprendizaje-Servicio en México, específicamente en el Estado de Querétaro ha sido impulsada recientemente. Como parte de las actividades de mejora de la convivencia del Observatorio de la Convivencia Escolar se desarrolla un programa piloto en 7 escuelas de nivel secundario de la ciudad de Querétaro con el objetivo de analizar el impacto de la metodología de proyectos de APS en la convivencia escolar, así como de valorar los resultados, para que, en el siguiente ciclo escolar se extienda a otras instituciones. Para alcanzar el objetivo, se realiza un estudio exploratorio de casos, la población es de 400 estudiantes, con el acompañamiento de 53 docentes. Los instrumentos de recolección de información son: cuestionario de participación infantil, escala de convivencia, observación estructurada. Dado que es un proyecto en curso, lo que se presenta en este trabajo son los avances acerca del proceso de la puesta en marcha de la metodología en las escuelas participantes. Como resultados parciales se destaca la modificación de las prácticas pedagógicas de los docentes, los cuales han adoptado en sus actividades escolares relaciones democráticas horizontales con los alumnos. Así mismo, se destaca el papel del alumnado como protagonista principal del proceso de APS al llevar a cabo el diagnóstico y la elección de la temática a intervenir, mostrando que esta estrategia permite mirar la parte social de la pedagogía pues lo que se promueve va más allá de los contenidos curriculares.
O movimento de economia solidária: essencialidades do princípio educativo
Authors: Régis Oliveira Alysson André
Published: May 2019

objetivo deste estudo foi entender a essência do princípio educativo que rege o Movimento de Economia Solidária (MES), seus sentidos e significados, indagando sobre seu caráter emancipatório, partindo do pressuposto de que o processo educativo na economia solidária seja capaz de criar novos significados e orientações políticas estratégicas, buscando ir além da própria esfera econômica, alcançando campos cada vez mais amplos da política e da cultura.Nesta pesquisa, para a discussão da emancipação e seus elementos norteadores, deu-se destaque a intelectuais que têm a educação como objeto de suas preocupações filosóficas. Assim, nos apropriamos, principalmente, das ideias do italiano Antônio Gramsci e do brasileiro Paulo Freire. A dimensão de estudo que abrigou esta tese foi o da História Social, voltada para uma história das massas ou para uma história dos grupos sociais, ou seja, o que haveria de relevante a ser estudado não era certamente a história dos grandes homens, ou mesmo a história política dos grandes Estados e das instituições, mas sim a história das relações entre os diversos grupos sociais presentes em uma sociedade, particularmente nas suas situações de conflito. Sendo assim, foi possível afirmarmos que a educação promove a aprendizagem de conhecimentos emancipatórios, que contribuam e possibilitem o indivíduo a agir conscientemente, engajando-se na luta por transformações das condições perversas, injustas e negadoras da dignidade humana. Em suma, isso nos permitiu concluir que, para este estudo específico, as práticas socioeducativas nos EES colaboram com a perspectiva da formação humana para a emancipação, considerando estes espaços não escolares como um celeiro de desenvolvimento ideológico contra-hegemônico.
Implementación de una innovación tecnológica: Espacio de Formación Multimodal, e-UAEM
Authors: Castillo Díaz Maribel , Zorrilla Abascal María Luisa
Published: May 2019

Este trabajo es parte de los resultados de la tesis “Análisis del proceso de implementación de un entorno virtual de aprendizaje en educación superior: estudio de caso e-UAEM (Espacio de Formación Multimodal)”, realizada en la Universidad Autónoma del Estado de Morelos (UAEM) México. El objetivo general de la investigación fue caracterizar, analizar y comprender, el proceso de implementación de una solución educativa de educación superior basada en un entorno virtual de aprendizaje, en este caso particular, e-UAEM. Uno de los objetivos específicos fue “identificar y describir la concepción del Espacio de Formación Multimodal de la Universidad Autónoma del Estado de Morelos” con el fin de contestar lo siguiente ¿Cómo se define el Espacio de Formación Multimodal en la Universidad Autónoma del Estado de Morelos? Fue un estudio cualitativo en donde se entrevistaron a docentes, directivos e implementadores del proyecto; se realizó análisis documental y se hizo un grupo focal con las personas involucradas en la parte académica de e-UAEM. La perspectiva teórica fue sobre el cambio organizacional.
Evaluar la práctica docente a partir de los comentarios de estudiantes universitarios
Authors: Reyes Piñuelas Erika Paola , González Machado Emilia Cristina , Be Ramírez Pedro Antonio
Published: May 2019

Se analizan los comentarios emitidos por estudiantes sobre la práctica de sus docentes en una universidad pública. Los comentarios constituyen información utilizada con frecuencia como parte de la evaluación docente, a partir de estos se realizan juicios y son considerados un elemento cualitativo dentro de la toma de decisiones por parte de los administrativos y directivos, no obstante escasos estudios los abordan. El presente trabajo analiza los comentarios de 568 estudiantes de las seis áreas del conocimiento, a partir del Modelo de Evaluación de la Competencia Docente el cual contempla tres dimensiones: previsión, conducción y valoración del impacto del proceso E-A. Los resultados indican que el 81% de los comentarios se clasificaron en alguna dimensión del modelo; se destaca cómo consideran a sus docentes con dominio para impartir clase, resolver problemas en clase, desarrollar actividades que fomentan el aprendizaje; mientras que, puntualidad, organización del tiempo, asistencia, y sobre todo la forma de valorar el proceso enseñanza-aprendizaje son valorados negativos. Se resalta la utilidad de la interpretación de los comentarios como información de tipo cualitativo en el sistema de evaluación docente, no solo al confirmar elementos evaluados por el instrumento de corte cuantitativo como los cuestionarios de opinión estudiantil y sino además evidenciar aspectos no contemplados por este.
La calidad e innovación educativa en la formación continua docente: un estudio cualitativo en dos centros educativos
Authors: Iglesias Martínez Marcos Jesús , Lozano Cabezas Inés , Roldán Soler Irene
Published: May 2019

La innovación educativa es un aspecto fundamental para mejorar la calidad de la enseñanza y el aprendizaje en los centros escolares. Este estudio enfoca su atención tanto en los intereses y motivaciones como en las dificultades e inquietudes que presenta el profesorado en su formación permanente sobre la innovación educativa. En esta investigación participan un total de 30 profesores y profesoras de Educación Infantil y Primaria de centros públicos y concertados. La recogida de datos se realiza a través de una entrevista semiestructurada que reflexiona y valora la innovación docente y curricular en la formación continua del profesorado. Se adopta una metodología cualitativa mediante narrativas, apoyada para el tratamiento de los datos en el programa AQUAD. Los resultados evidencian la necesidad del profesorado de recibir una formación permanente acorde a sus intereses y necesidades, enfocada en la mayoría de casos a innovaciones educativas metodológicas. El conocimiento y la valoración de las concepciones y creencias de los docentes participantes sobre la innovación educativa y su formación continua resulta de interés para avanzar hacia una mejora en el desarrollo profesional docente.
El impacto educativo de los programas intergeneracionales: un estudio desde la escuela y las diferentes instituciones sociales implicadas
Authors: Moreno Abellán Pedro , Martínez de Miguel López Silvia , Escarbajal de Haro Andrés
Published: May 2019

El presente artículo analiza el impacto de los programas intergeneracionales desde la escuela y las diferentes instituciones sociales para la mejora y calidad de futuros proyectos que generen la construcción de nuevos aprendizajes, y fortalezca un acercamiento entre generaciones. Para abordarlo, se han descrito y analizado los programas orientados al ámbito de intervención intergeneracional en sus diferentes contextos de actuación, las funciones y características de todos los agentes implicados en la acción intergeneracional, y se han identificado las carencias desde la percepción que tenían los protagonistas de esos programas. Para atender a los aspectos planteados, se ha llevado a cabo una metodología de carácter cualitativo a través de entrevistas semiestructuradas y grupos de discusión. Entre los principales resultados obtenidos se reconoce la satisfacción personal de los mayores por el hecho de sentirse útiles y seguir aprendiendo a través de estas iniciativas. En el caso de los niños entrevistados que interactúan con mayores, se configuran beneficios relacionados esencialmente con el conocimiento y la sabiduría que les aportan esas personas; adquisición de numerosos valores de empatía, respeto y solidaridad; aprender a ser mejores personas en la vida; disminuir estereotipos hacia la vejez; y reconocer una imagen positiva de las personas mayores.
[Reseña] Identidad profesional docente
Authors: Calatayud Salom María Amparo
Published: May 2019

Canton Mayo, Isabel y Tardif, Maurice (2018). Identidad profesional docente. Madrid: Narcea - Universitaria. 229 páginas. ISBN: 978-84-277-2396-2

Desde hace algún tiempo hay un gran debate por abordar el problema de la identidad profesional (o de las identidades profesionales) de los profesores. A nivel pedagógico, la gran pregunta que sigue generándose entre los profesionales de la educación se centra en ser capaces de definir ¿Qué es un profesor hoy en día? ¿Cuál es la experiencia, las expectativas y las competencias de los docentes sobre su identidad profesional, es decir, su trabajo frente a los estudiantes en el seno de una institución educativa? Para aportar luz, sobre estas cuestiones, cabe destacar la impecable labor de coordinación de Isabel Cantón Mayo y Maurice Tardif quienes han sabido aglutinar a grandes expertos nacionales e internacionales en torno a un tema que es imprescindible abordar a día de hoy: la redefinición del trabajo docente...
Composite Outcome Improves Feasibility of Clinical Trials in Peritoneal Dialysis
Authors: Boehm Michael , Niewczas Julia , Herkner Harald , Koenig Franz , Kratochwill Klaus , Rutherford Peter , Aufricht Christoph , Vychytil Andreas
Published: May 2019

Background

Peritoneal dialysis (PD) is complicated by a high rate of adverse events that might be attributed to cytotoxicity of currently used PD fluids. However, clinical development of novel PD fluids is virtually non-existent, in part due to difficulties in recruiting sufficiently large populations for adequately powered trials. The aim of this study is to understand the potential impact of introducing composite outcomes on clinical trial feasibility in PD.

Methods

A composite outcome “major adverse peritoneal events (MAPE)” was designed to combine clinically relevant complications of PD, such as ( 1 ) technical failure (cause-specific for peritonitis and/or insufficient dialysis), ( 2 ) peritonitis, and ( 3 ) peritoneal membrane deterioration. Incidence rates of individual endpoints were obtained from the literature and expert panel estimations, and population sizes were computed based on Chi-square test for adequately powered confirmatory randomized controlled clinical trials with 2 parallel arms.

Results

Incidence rates for technical failure, peritonitis, and peritoneal membrane deterioration were estimated at 15%, 50%, and 23%, respectively, at 2 years follow-up, with adequate agreement between the literature and expert opinion. Assuming that a given intervention reduces adverse outcomes by 30%, an adequately powered clinical trial needs to recruit up to 1,720 patients when studying individual outcomes. Combining endpoints increases power in simulated trials despite considerable overlap, and the composite outcome MAPE reduces the required population to 202 patients aiming for 80% power.

Conclusion

Introduction of the composite outcome MAPE, covering relevant major adverse peritoneal events, may improve the feasibility of clinical trials to adequately test novel PD fluids.