bluuebunny/crossref_metadata_2025 huggingface dataset:
Sustainability Challenges of Wind Power Deployment in Coastal Ceará State, Brazil
Authors: Araújo Júlio César Holanda , Souza Wallason Farias de , Meireles Antonio Jeovah de Andrade , Brannstrom Christian
Published: July 2020

Sustainable and socially just decarbonization faces numerous challenges, owing to high land demands for wind farms and weak economic and political institutions. In Brazil, a leader in the Global South in terms of rapid installation of wind power capacity since the 2001 electricity crisis, firms have built wind farms near host communities that are politically and economically marginalized, giving rise to numerous forms of subtle contention and overt opposition. We aimed to better understand the licensing materials for wind farms and the content of the host communities’ concerns about wind farms. We analyzed 18 “simplified” environmental impact reports, which created a legal path for wind farm construction, and conducted qualitative interviews in host communities in coastal Ceará state in northeastern Brazil. Our analysis reveals how firms appropriated and manipulated “crisis” in their environmental impact reports. Interviews with host community members reveal themes of ecological damage, fear, privatized land, employment, migrant workers and noise, in addition to evidence of active resistance to wind farms. These findings corroborate previous work on the overall nature of host community perceptions, add additional insight on the content of the licensing materials and expand the number of host communities analyzed for emerging sustainability challenges. More rigorous licensing procedures are needed to reduce corrupt practices, as well as the offering of avenues for community participation in the decision-making processes and eventual benefits of the wind farms.
Exploring Signals for a Nuclear Future Using Social Big Data
Authors: Roh Seungkook , Choi Jae Young
Published: July 2020

Since the start of the new Korean government in 2017, the Korean nuclear energy system has undergone a major change. This change in national energy policy can be forecasted by analyzing social big data. This study verifies whether future forecasting methodologies using weak signals can be applied to Korean nuclear energy through text mining the data of web news between 2005 and 2018, comparing and applying the methodology to notable events (i.e., the UAE nuclear power plant (NPP) contract and nuclear phase-out). In addition, we predict what changes will be made in the Korean nuclear energy system post-2019. Keywords extracted through text mining were quantitatively classified into a weak signal or a strong signal using a Keyword Emergence Map (KEM) and a Keyword Issue Map (KIM). The extracted keywords predicted the contract of the UAE NPPs in 2009 and nuclear phase-out in 2017. Furthermore, keywords revealing future signals beyond 2019 were found to be ‘nuclear phase-out’ and ‘wind energy’. The weak-signal methodology can be applied as a tool to predict future energy trends during the current circumstance of the rapidly changing world energy market.
Life Cycle Sustainability Assessment of Alternative Energy Sources for the Western Australian Transport Sector
Authors: Hoque Najmul , Biswas Wahidul , Mazhar Ilyas , Howard Ian
Published: July 2020

Environmental obligation, fuel security, and human health issues have fuelled the search for locally produced sustainable transport fuels as an alternative to liquid petroleum. This study evaluates the sustainability performance of various alternative energy sources, namely, ethanol, electricity, electricity-gasoline hybrid, and hydrogen, for Western Australian road transport using a life cycle sustainability assessment (LCSA) framework. The framework employs 11 triple bottom line (TBL) sustainability indicators and uses threshold values for benchmarking sustainability practices. A number of improvement strategies were devised based on the hotspots once the alternative energy sources failed to meet the sustainability threshold for the determined indicators. The proposed framework effectively addresses the issue of interdependencies between the three pillars of sustainability, which was an inherent weakness of previous frameworks. The results show that the environment-friendly and socially sustainable energy options, namely, ethanol-gasoline blend E55, electricity, electricity-E10 hybrid, and hydrogen, would need around 0.02, 0.14, 0.10, and 0.71 AUD/VKT of financial support, respectively, to be comparable to gasoline. Among the four assessed options, hydrogen shows the best performance for the environmental and social bottom line when renewable electricity is employed for hydrogen production. The economic sustainability of hydrogen fuel is, however, uncertain at this stage due to the high cost of hydrogen fuel cell vehicles (HFCVs). The robustness of the proposed framework warrants its application in a wide range of alternative fuel assessment scenarios locally as well as globally.
Influence of Indoor Climate on Employees in Office Buildings—A Case Study
Authors: Kapalo Peter , Vilčeková Silvia , Mečiarová Ľudmila , Domnita Florin , Adamski Mariusz
Published: July 2020

The presented research work is aimed at investigation of the influence of indoor environmental conditions on employees in office buildings. Monitoring of carbon dioxide, temperature, relative humidity and pulse, as well as subjective evaluation, was carried out in three office rooms where air conditioning systems ensured the required amount of fresh air. Investigation showed that in two offices (A and B), the amount of fresh air did not comply with EN 15251:2017. The concentration of CO2 in office A was above 1000 ppm for 72% of the total length of stay. Respondents confirmed fatigue and headaches. In offices A and B, where CO2 concentration was around 1000 ppm, people with a weight of up to 70 kg experienced a significant increase in air temperature as well as odor. Persons with weight higher than 75 kg experienced a slight decrease in air quality. In office C, where CO2 concentration was around 800 ppm, respondents reported a slight decrease in air quality. According to pulse monitoring, it can be stated that in an office where there is an insufficient supply of fresh air, the pulse of a person falls or only slightly rises. A decrease in pulses may indicate the attenuation or stunning of people caused by poor air quality.
Studying the Formation of the Charging Session Number at Public Charging Stations for Electric Vehicles
Authors: Gorbunova Anastasia , Anisimov Ilya , Magaril Elena
Published: July 2020

The energy industry is a leader of introduction and development of energy supply technologies from renewable energy sources. However, there are some disadvantages of these energy systems, namely, the low density and inconsistent nature of the energy input, which leads to an increase in the cost of the produced electric energy in comparison to the traditional energy complexes using hydrocarbon fuel resources. Therefore, the smart grid technology based on preliminary calculation parameters of the energy system develops in cities. This area should also be used to organize the charging infrastructure of electric vehicles, as the electrification of road transport is one of the global trends. As a result, a current task of the transport and energy field is the development of scientifically based approaches to the formation of the urban charging infrastructure for electric vehicles. The purpose of the article is to identify the features of the application flow formation for the charge of the electric vehicle battery. The results obtained provide a basis for building a simulation model for determining the required number of charging stations in the city, taking into account the criteria of minimizing operating costs for electric vehicle owners and energy companies.
Plant-Based Sustainable Development—The Expansion and Anatomy of the Medicinal Plant Secondary Processing Sector in Nepal
Authors: Caporale Filippo , Mateo-Martín Jimena , Usman Muhammad Faizan , Smith-Hall Carsten
Published: July 2020

There is an increasing global demand for medicinal plants. Nevertheless, the nature and scale of processing in national-level medicinal plant production networks, and how this can contribute to sustainable development, are poorly understood. This study (i) uncovers and explains the emergence of the Nepalese medicinal plant secondary processing sector, (ii) characterises the enterprises and identify the obstacles they face, (iii) quantifies the volumes and values of processed species and end markets, and (iv) discusses the potential to contribute to sustainable economic development. Empirical data were generated from key informant interviews and qualitative (n = 13) and quantitative (n = 79) semi-structured surveys of medicinal plant processing enterprises. In 2014–15, the sector purchased 3679 metric tonnes of air-dry raw materials (across 67 products) for USD 4.0 million, producing 494 tonnes of end-products valued at USD 11.2 million. The sector is characterised by small enterprises. Rising domestic demand drove the increase in the number of enterprises. Key business obstacles were export barriers, low access to technology, infrastructure and service barriers, labour challenges, socio-economic and political instability, and the inefficient bureaucracy. The actions required to change from being a supplier of raw materials and producer of lower-value domestic consumer products to integrating into the global economy as an exporter of higher-value products that are sustainably sourced are discussed.
Does the Impact of Carbon Price Determinants Change with the Different Quantiles of Carbon Prices? Evidence from China ETS Pilots
Authors: Chu Wenjun , Chai Shanglei , Chen Xi , Du Mo
Published: July 2020

Since carbon price volatility is critical to the risk management of the CO2 emissions trading market, research has focused on energy prices and macroeconomic drivers which cause changes in carbon prices and make the carbon market more volatile than other markets. However, they have ignored whether the impact of carbon price determinants changes when the carbon price is at different levels. To fill this gap, this paper applies a semiparametric quantile regression model to explore the effects of energy prices and macroeconomic drivers on carbon prices at different quantiles. The model combines the advantages of parameter estimation, nonparametric estimation and quantile regression to describe the nonlinear relationship between carbon price and its fundamentals, which do not need to make any assumptions about the random error. Carbon prices are high–tailed and exhibit higher kurtosis, the traditional models which tend to assume that data are normally distributed can’t perform well. Furthermore, the semiparametric model doesn’t need to assume that the data are normally distributed. Therefore, the semiparametric model can effectively model the data. Some new evidence from China’s emission trading scheme (ETS) pilots shows that energy prices and macroeconomic drivers have different effects on carbon prices at high or low quantiles. First, the negative impact of coal prices on carbon prices was greater at the lower quantile of carbon prices in the Shenzhen ETS pilot. However, the effects of coal prices were positive in the Beijing ETS pilot, which may be attributed to great demand for coal. Second, oil prices had greater negative effects on carbon prices at higher quantiles in Beijing and Hubei ETS pilots. This can be attributed to the fact that businesses use less oil when carbon prices are high. For the Shenzhen ETS pilot, the effects of oil prices were positive. Third, natural gas prices have a stronger effect on carbon prices as quantiles increased in the Beijing and Hubei ETS pilots. Lastly, the effects of macroeconomic drivers on carbon prices at low quantiles were stronger in the Shenzhen ETS pilots and higher at the medium quantiles in Beijing and Hubei ETS pilots. These findings suggest that the impact of determinants on the carbon prices at different levels is not constant. Ignoring this issue will lead to a missed warning about the risks of the carbon market. This study will be of positive significance for China’s emission trading scheme (ETS) pilots, in order to accurately monitor the effects of carbon prices determinants and effectively avoid carbon market risks.
An Assessment of the Applicability of Sustainability Measurement Tools to Resource-Based Economies of the Commonwealth of Independent States
Authors: Ponomarenko Tatyana , Nevskaya Marina , Marinina Oksana
Published: July 2020

The concept of sustainable development (SD) is aimed at ensuring public well-being for the present and future generations. Hundreds of methods have been proposed for assessing and comparing the sustainable development of countries and analyzing their contribution to the future of the world. When applied to resource-based economies (RBEs), assessment tools do not take into account the value and impact of mineral resources on SD indicators. The purpose of the study is to reveal the limitations of applying some tools by taking into consideration the specific features of RBEs. Research methods include a correlation analysis between gross national income (GNI) per capita and aggregated indices (the Sustainable Society Index (SSI), the Human Development Index (HDI), and the Environmental Performance Index (EPI)), a comparative analysis of these indices and mining companies’ performance indicators. Object Eurasian RBEs were selected, but Norway was analyzed separately from the sample. The results of the study show that correlations between GNI per capita and SD indicators are heterogeneous. There is no statistically significant correlation between GNI per capita and SSI, a strong correlation with HDI, and a weak correlation with EPI. The EPI and SSI structures do not reflect the specific features of RBEs.
Model and Solution of Complex Emergency Dispatch by Multiple Rescue Centers with Limited Capacity to Different Disaster Areas
Authors: Duan Zaipeng , Huang Yueling , Huang Ping , Guo Jin , Yang Fuqiang , Fu Libi
Published: July 2020

A disaster emergency consists of many unfavorable factors, such as different disaster areas, the limited capacity of the rescue centers, and complex rescue conditions. After taking into account the resources of the rescue centers, the ability of rescue teams, and the distance between the rescue centers and the disaster areas, this paper has established a complex model for multiple centers with limited capacity to dispatch teams for emergencies in different disaster areas. The model is solved by the genetic algorithm. Firstly, the paper takes the rescue task as the subunit to perform integer programming. Secondly, a rule is designed according to the symmetry of parents’ crossing. According to the rule, single parent crossover only allows two situations, (1) different rescue mission for the same rescue center and (2) different rescue centers under the same rescue mission. Finally, the performance of parent crossing and symmetric single parent crossing is compared. The results show that the two algorithms can converge to the optimal solution, but each of them has unique advantages in terms of convergence speed and stability. It is suggested that the strategy of the single-parent crossover should be used to deal with local emergency responses and that the two-parent crossover strategy is be used for more complicated global emergency responses.
Exact Likelihood Inference for an Exponential Parameter under Generalized Adaptive Progressive Hybrid Censoring
Authors: Lee Hyojin , Lee Kyeongjun
Published: July 2020

In this paper, we propose a new type censoring scheme named a generalized adaptive progressive hybrid censoring scheme (GenAdPrHyCS). In this new type censoring scheme, the experiment is assured to stop at a pre-assigned time. This censoring scheme is designed to correct the drawbacks in the AdPrHyCS. Furthermore, we discuss inference for one parameter exponential distribution (ExD) under GenAdPrHyCS. We derive the moment generating function of the maximum likelihood estimator (MLE) of scale parameter of ExD and the resulting lower confidence bound under GenAdPrHyCS.
Symmetric Potentiometric Cells for the Measurement of Unified pH Values
Authors: Heering Agnes , Stoica Daniela , Camões Filomena , Anes Bárbara , Nagy Dániel , Nagyné Szilágyi Zsófia , Quendera Raquel , Ribeiro Luís , Bastkowski Frank , Born Rasmus , Nerut Jaak , Saame Jaan , Lainela Silvie , Liv Lokman , Uysal Emrah , Roziková Matilda , Vičarová Martina , Snedden Alan , Deleebeeck Lisa , Radtke Valentin , Krossing Ingo , Leito Ivo
Published: July 2020

A unified pH scale of absolute values (pHabs scale) enables the comparison of acidities in different solvents. To date, very few different experimental setups have been used for the measurement of values on this scale. The article describes the design and performance of the different symmetric cells used for unified pH measurement by several institutions. Well-established and reliable standard aqueous buffer solutions are the first step of method validation necessary to achieve a robust metrological level for more complex media. The pH of aqueous standard buffers was measured by differential potentiometry, where the potential between two glass electrodes is measured directly. All the tested electrochemical cells prove to be suitable for unified pH measurements. This validation highlights that the method is, to a large extent, independent of the used equipment, including the cell geometry. The inherent symmetry of the cell design helps to reduce the experimental workload and improve the accuracy of obtained results.
Changing River Flood Timing in the Northeastern and Upper Midwest United States: Weakening of Seasonality over Time?
Authors: Dhakal Nirajan , Palmer Richard N.
Published: July 2020

Climate change is likely to impact precipitation as well as snow accumulation and melt in the Northeastern and Upper Midwest United States, ultimately affecting the quantity and seasonal distribution of streamflow. The objective of this study is to analyze seasonality of long-term daily annual maximum streamflow (AMF) records and its changes for 158 sites in Northeastern and Upper Midwest Unites States. A comprehensive circular statistical approach comprising a kernel density method was used to assess the seasonality of AMF. Temporal changes were analyzed by separating the AMF records into two 30-year sub-periods (1951–1980 and 1981–2010). Results for temporal change in seasonality showed mixed pattern/trend across the stations. While for majority of stations, the distribution of AMF timing is strongly unimodal (concentrated around spring season) for the period 1951–1980, the seasonal modes have weakened during the period 1981–2010 for several stations along the coastal region with simultaneous emergence of multiple modes indicating changes of seasonality therein. The fresh statistical approach based on non-parametric circular density estimates reduces some of the limitations of previous studies to detect and model event timing distributions with multiple seasons and addresses issues of non-stationarity in the data records of extreme events.
Towards Monitoring of Nutrient Pollution in Coastal Lake Using Remote Sensing and Regression Analysis
Authors: Mortula Maruf , Ali Tarig , Bachir Abdallah , Elaksher Ahmed , Abouleish Mohamed
Published: July 2020

The last few decades have witnessed a tremendous increase in nutrient levels (phosphorus and nitrogen) in coastal water leading to excessive algal growth (Eutrophication). The presence of large amounts of algae turns the water’s color into green or red, in the case of algal blooms. Chlorophyll-a is often used as an indicator of algal biomass. Due to increased human activities surrounding Dubai creek, there have been eutrophication concerns given the levels of nutrients in that creek. This study aims to map chlorophyll-a in Dubai Creek from WorldView-2 imagery and explore the relationship between chlorophyll-a and other eutrophication indicators. A geometrically- and atmospherically-corrected WorldView-2 image and in-situ data have been utilized to map chlorophyll-a in the creek. A spectral model, developed from the WorldView-2 multispectral image to monitor Chlorophyll-a concentration, yielded 0.82 R2 with interpolated in-situ chlorophyll-a data. To address the time lag between the in-situ data and the image, Landsat 7 Enhanced Thematic Mapper Plus (ETM+) images were used to demonstrate the accuracy of the WorldView-2 model. The images, acquired on 20 May and 23 July 2012, were processed to extract chlorophyll-a band ratios (Band 4/Band 3) following the standard approach. Based on the availability, the 20 May image acquisition date is the closest to the middle of Quarter 2 (Q2) of the in-situ data (15 May). The 23 July 2012 image acquisition date is the closest to the WorldView-2 image date (24 July). Another model developed to highlight the relationship between spectral chlorophyll-a levels, and total nitrogen and orthophosphate levels, yielded 0.97 R2, which indicates high agreement. Furthermore, the generated models were found to be useful in mapping chlorophyll-a, total nitrogen, and orthophosphate, without the need for costly in-situ data acquisition efforts.
Reactivation of a Huge, Deep-Seated, Ancient Landslide: Formation Mechanism, Deformation Characteristics, and Stability
Authors: Luo Shilin , Jin Xiaoguang , Huang Da , Kuang Xibin , Song Yixiang , Gu Dongming
Published: July 2020

In this study, an investigation on the formation mechanisms, deformation characteristics, and stability of the Outang landslide, composed by three independent blocks (O1, O2, and O3), is performed by integrating site surveys, multi-technique monitoring data, and numerical simulation. The results show that the formation mechanism for blocks O1 and O3 is slide-bulking, and is planar slide for block O2. These three blocks slide along the incompetent layers (ILs): IL1 is the slip surface of block O1 and O2, and IL3 is the slip surface of block O3. Furthermore, the west local fast movement zone might evolve into deep failure. The slope surface movement is step-like, characterized by the alternation of rapid displacement followed by imperceptible displacement over each hydrological year. The surface displacement velocities increased upslope. Based on the numerical simulation, both precipitation and reservoir water are believed as the major factors driving the slope behaviors, and the slope stability would be decreased gradually under the effect of the periodic variation of water level and seasonal precipitation infiltration. As a result of this study, some countermeasures of landslide and long-term monitoring are recommended.
Meninos órfãos vindos do Reino para a América Portuguesa: mestiçagem cultural
Authors: Hernandes Paulo Romualdo
Published: July 2020

Este artigo analisa cartas jesuíticas que descrevem a vinda de meninos órfãosdo Reino português, do Colégio dos Órfãos de Lisboa, para a América Portuguesa, para o Colégio dos Meninos de Jesus, de Salvador, e acompanha a narrativa dos padres sobre a peregrinação dos meninos pelas matas, pelas aldeias, pelos aldeamentos. Apresenta-se também o encanto e, por vezes, o desencanto no relato dos missivistas sobre a ação dos meninos órfãos com os habitantes das selvas e sua cultura. As cartas revelam, nas descrições da ação junto aos nativos, possíveis encontros e desencontros de culturas e algumas misturas que estão nas bases da formação da cultura brasileira.
Requirement and Development of Hydrogel Micromotors towards Biomedical Applications
Authors: Lin Xinyi , Xu Borui , Zhu Hong , Liu Jinrun , Solovev Alexander , Mei Yongfeng
Published: July 2020

With controllable size, biocompatibility, porosity, injectability, responsivity, diffusion time, reaction, separation, permeation, and release of molecular species, hydrogel microparticles achieve multiple advantages over bulk hydrogels for specific biomedical procedures. Moreover, so far studies mostly concentrate on local responses of hydrogels to chemical and/or external stimuli, which significantly limit the scope of their applications. Tetherless micromotors are autonomous microdevices capable of converting local chemical energy or the energy of external fields into motive forces for self-propelled or externally powered/controlled motion. If hydrogels can be integrated with micromotors, their applicability can be significantly extended and can lead to fully controllable responsive chemomechanical biomicromachines. However, to achieve these challenging goals, biocompatibility, biodegradability, and motive mechanisms of hydrogel micromotors need to be simultaneously integrated. This review summarizes recent achievements in the field of micromotors and hydrogels and proposes next steps required for the development of hydrogel micromotors, which become increasingly important for
in vivo
and
in vitro
bioapplications.
CRECIMIENTO DE PLÁNTULAS DE DOS ESPECIES DE MEZCAL EN FUNCIÓN DEL TIPO DE SUELO Y NIVEL DE FERTILIZACIÓN
Authors: Martínez-Ramírez Saúl , Trinidad-Santos Antonio , Bautista-Sánchez Gilberto , Pedro-Santos E. César
Published: July 2020

Los magueyes de la Mixteca oaxaqueña no han sido objeto de fertilización, a pesar de que se emplean para producir mezcal. En este estudio se evaluó en invernadero la influencia de tres suelos (Acatlima, Leptosol; Miltepec, Regosol; y Yodoyuxi, Regosol) y de cuatro dosis de fertilización con 0-0-0, 30-20-15, 60-40-30 y 90-60-45 kg de N-P-K ha-1, en el crecimiento y producción de biomasa de plántulas de dos especies de Agave (A. angustifolia Haw. y A. potatorum Zucc.). Se empleó un arreglo factorial de tratamientos 2 x 3 x 4 bajo un diseño experimental completamente al azar. Se evaluaron 24 tratamientos con cuatro repeticiones y 96 unidades experimentales (plantas). Siete meses después de la germinación se evaluaron las variables: altura de planta (A), diámetro de roseta (D), número de hojas desplegadas (HD) y biomasa seca (BS). Los datos se sometieron a análisis de varianza y pruebas de Tukey (α = 0.05). El suelo de Miltepec promovió que la plántulas produjeran 300 y 220 % más BS que los suelos de Acatlima y Yodoyuxi, respectivamente. Las plántulas fertilizadas con 30-20-15 kg de N-P-K ha-1 tuvieron 58.3 % más BS que las plántulas no fertilizadas. No se detectó interacción alguna de importancia en el crecimiento de las dos especies de agave mezcalero. Se concluyó que el suelo de Miltepec y la fertilización con 30-20-15 kg de N-P-K ha-1 fueron los factores que más favorecieron el crecimiento y el rendimiento de biomasa de A. angustifolia y A. potatorum.
LA NIXTAMALIZACIÓN Y SU EFECTO EN EL CONTENIDO DE ANTOCIANINAS DE MAÍCES PIGMENTADOS, UNA REVISIÓN
Authors: Escalante-Aburto Anayansi , Ramírez-Wong Benjamín , Torres-Chávez Patricia I. , Barrón-Hoyos J. Manuel , Figueroa-Cárdenas Juan de Dios , López-Cervantes Jaime
Published: July 2020

El objetivo de esta revisión es compilar el conocimiento disponible acerca del contenido y los tipos de antocianinas identificadas en diferentes variedades de maíces (Zea mays L.) pigmentados. Principalmente, se pretende identificar el efecto en estos compuestos causado por la nixtamalización tradicional, y especificar los estudios desarrollados con tecnologías alternativas de nixtamalización para disminuir los efectos negativos en la calidad funcional del producto final. El uso de maíces pigmentados se ha incrementado debido al contenido superior de compuestos fenólicos, sobre todo por su contenido de antocianinas. Las antocianinas son los compuestos responsables del color rojo-azul de plantas como el maíz, y poseen propiedades antioxidantes benéficas para la salud. Estos pigmentos se encuentran en la capa de aleurona del endospermo y en el pericarpio del grano. Las antocianinas no aciladas de mayor abundancia en los maíces pigmentados son cianidina 3-glucósido (70 %), pelargonidina 3-glucósido y peonidina 3-glucósido, las cuales poseen una alta capacidad antioxidante. En general, los maíces de variedades de color morado, azul y negro son las que contienen más antocianinas. La nixtamalización tradicional es un proceso agresivo para las antocianinas contenidas en los granos pigmentados, ya que provoca pérdidas hasta de 100 % en los productos obtenidos por esta tecnología. No obstante, se puede retener una mayor cantidad de compuestos fenólicos, antocianinas y mayor capacidad antioxidante en productos obtenidos con nixtamalización por extrusión y nixtamalización fraccionada, los cuales son procesos alternativos eficientes a la nixtamalización tradicional. Sin embargo, son necesarias más investigaciones que permitan disminuir la pérdida de estos compuestos naturales útiles para la obtención de nuevos productos nutracéuticos desarrollados con maíces pigmentados.
MODELOS DE PREDICCIÓN DE RENDIMIENTO DE CANOLA EN FUNCIÓN DEL CONTENIDO DE HUMEDAD DISPONIBLE EN EL SUELO
Authors: Inzunza-Ibarra Marco A. , Catalán-Valencia Ernesto A. , Villa-Castorena M. Magdalena , Sánchez-Cohen Ignacio , Sifuentes-Ibarra Ernesto , Román-López Abel
Published: July 2020

La canola (Brassica napus L.) es un cultivo de gran demanda por su aceite de alta calidad para consumo humano y por ser alternativa viable en la rotación de cultivos por sus reducidas necesidades hídricas. El estudio se realizó en Gómez Palacio, Durango en 2009, con el objetivo de determinar un modelo matemático que prediga confiablemente a la producción de grano de la canola ante diferentes condiciones de estrés hídrico en el suelo en dos etapas de su crecimiento. Se ensayaron siete tratamientos resultantes del diseño de tratamientos San Cristóbal para dos factores: humedad aprovechable consumida del suelo (HAC) [40-40, 40-80, 60-60, 60-100, 80-40, 80-80, y 100-60], en combinación con dos etapas fenológicas (vegetativa, que comprende de emergencia a inicio de floración; y reproductiva, de inicio de floración a madurez fisiológica). Los tratamientos se distribuyeron en forma aleatoria en un diseño experimental de bloques al azar con cuatro repeticiones. Las variables medidas fueron: rendimiento de grano (kg ha-1), eficiencia de uso de agua de la canola (kg m-3), evapotranspiración del cultivo, y régimen efectivo de humedad en el suelo. Los resultados mostraron que la canola alcanza los mayores valores de rendimiento de grano y de eficiencia de uso del agua (3.3 t ha-1 y de 0.585 kg m-3), al desarrollarse con 65 y 61 % de HAC en las etapas vegetativa y reproductiva, respectivamente. Los modelos de predicción mostraron que la canola maximiza su producción de grano (3.15 t ha-1) al consumir láminas de agua de 21 y 35 cm, en las dos etapas fenológicas citadas.
PREDICCIÓN FENOLÓGICA DEL CULTIVO DE PAPA MEDIANTE TIEMPO TÉRMICO
Authors: Flores-Magdaleno Héctor , Flores-Gallardo Hilario , Ojeda-Bustamante Waldo
Published: July 2020

El objetivo del presente estudio fue evaluar tres métodos para predecir la fenología en el cultivo de papa (Solanum tuberosum L.) mediante tiempo térmico, para lo cual se trabajó con un total de 15 parcelas a nivel comercial sembradas con la variedad ‘Alpha’ en el norte de Sinaloa, México. Los métodos comparados fueron: temperatura media, grados día (°D) y días fenológicos de papa (P-days), los tres calculados con los datos obtenidos mediante el monitoreo en campo de cada fase fenológica durante los ciclos agrícolas otoño-invierno 2005-2006 y 2006-2007. Los resultados indicaron que el mejor método para predecir la fenología de esta variedad de papa con base en el tiempo térmico fue el P-days, porque presentó los menores valores de coeficiente de variación con 0.07 y de desviación estándar con 18.03 para todas las etapas fenológicas analizadas. Al comparar los errores encontrados para cada método en el grupo de parcelas en las que se determinaron las necesidades térmicas más un grupo de otras parcelas usadas para validar dichas necesidades, se confirmó que el método P-days tuvo menores errores, pues los valores encontrados fueron 3.6 y 3.2 % para la raíz cuadrada del cuadrado medio del error RMSE y el error medio absoluto MAE, respectivamente.
Os Acidentes no Voo Livre
Authors: Moura Diego Luz , Soares Antonio Jorge Gonçalves
Published: July 2020

O objetivo é identificar as causas de acidentes no voo livre a partir dos relatos de seus atletas. A metodologia foi uma análise documental através de fontes que descrevem relatos dos atletas de voo livre. A partir da análise dos dados verificamos que os acidentes ocorrem na interação com os equipamentos e na interação com as condições de voo. E que parte dos acidentes podem ser evitados com cuidados na checagem dos equipamentos. Entretanto, outra parte se torna mais difícil, pois está relacionada com a necessidade de busca de excitação, onde os investimentos tecnológicos ajudam a aumentar a segurança e os riscos simultaneamente. Pudemos perceber que a crença na tecnologia é uma das características da narrativa moderna do risco que exclui qualquer tipo de acontecimento aleatório.
Pengaruh Latihan Keseimbangan Terhadap Keseimbangan Tubuh Dan Risiko Jatuh Lansia
Authors: Faidah Nurul , Kuswardhani Tuty , Artawan E.P I Wayan Gede
Published: July 2020

Penurunan keseimbangan tubuh pada lansia di provinsi Bali sebesar 30-50% sehingga berdampak terhadap risiko jatuh dan kualitas hidup lansia. Risiko jatuh diperkirakan 25 % dan meningkat pada usia 70 tahun menjadi 35% Penelitian ini bertujuan mengetahui pengaruh latihan keseimbangan terhadap peningkatan keseimbangan tubuh. Penelitian ini merupakan penelitian kuantitatif dengan design quasy eksperiment, sampel dalam penelitian ini 234 lansia, 117 untuk kelompok yang diberikan intervensi dan 117 kelompok kontrol. Penelitian ini dilakukan di wilayah kerja puskesmas 3 Denpasar utara kelurahan Peguyangan Kaja. Pengumpulan data dilakukan bulan juni agustus 2016. Penelitian ini dilakukan dengan observasi dan mengisi kuesioner, observasi untuk mengukur keseimbangan tubuh. Data dianalisis menggunakan statistik deskriptif dan analisis perbandingan dengan Stata SE 2.12. Berdasarkan analisis multivariat didapatkan rerata keseimbangan tubuh (3,7 95% CI:2,7-4,6), risiko jatuh pada kelompok yang diberikan LKS (RR 0,19 95% CI: 0,105-0,346); yang berarti LKS menurunkan risiko jatuh (1/5). Latihan keseimbangan meningkatkan keseimbangan tubuh dan menurunkan risiko jatuh
Ecos da Resistência em O pequeno príncipe, de Antoine de Saint-Éxupery, e A trilha dos ninhos de aranha, de Ítalo Calvino
Authors: Meireles João Ricardo Da Silva , Moraes Cintia Da Silva
Published: July 2020

Este estudo propõe uma reflexão acerca dos romances O pequeno príncipe (1946), de Antoine de Saint-Éxupery e A trilha dos ninhos de aranha (1947), de Ítalo Calvino, evidenciando a posição anticanônica dos romances na época de seus lançamentos. Colocando-se em evidência as suas fortes relações com a realidade, observa-se a modificação dos horizontes e modos de perceber o cotidiano. Ressalta-se, enfim, a funcionalidade dos personagens infantis à representação da resistência ao Fascismo, na Itália, e à dominação nazista, na França.
Impressões da ditadura brasileira na correspondência de Caio Fernando Abreu
Authors: Silva Mara Lúcia Barbosa da
Published: July 2020

No prólogo de Escrita de si, escrita da História (2014), Angela de Castro Gomes, discorre acerca de uma nova forma de pensar a correspondência e sobre a relevância que lhe passou a ser dada. Para Gomes, essa escrita integra um conjunto de modalidades do que se convencionou chamar de produção de si no mundo moderno ocidental. Essa denominação pode ser melhor entendida a partir da ideia de uma relação que se estabeleceu entre o indivíduo moderno e seus documentos, pois diários íntimos e memórias sempre despertaram interesse, mas, mais recentemente, ganharam novo impulso. Os tempos modernos consagrariam, então, o lugar do indivíduo na sociedade e essa nova categoria de indivíduo faz com que se transformem as noções de memória, documento, verdade, tempo e história. Através da análise da correspondência ativa de Caio Fernando Abreu, entre 1969 e 1985, utilizando como corpus principal de pesquisa o livro organizado por Italo Moriconi, Caio Fernando Abreu: cartas (2002), e tendo como base norteadora a noção de rastro estabelecida por Walter Benjamin, identificamos a percepção do autor sobre os acontecimentos que se sucediam no Brasil durante o período do Regime Militar.
¿Son las Comisiones parlamentarias de investigación un instrumento efectivo de lucha contra la corrupción pública?
Authors: Gude Fernández Ana
Published: July 2020

El Parlamento es el lugar de la publicidad por excelencia y  la  sede  adecuada para examinar las actuaciones del  Gobierno y la Administración, sobre todo, de aquéllas que pudieran motivar la exigencia de responsabilidades políticas o ser sospechosas de corrupción pública. El artículo 76.1 de la Constitución española establece, de forma expresa, que el Congreso y el Senado o en su caso ambas Cámaras conjuntamente podrán nombrar comisiones de investigación sobre cualquier asunto de interés público. En este trabajo hacemos una reflexión acerca de si la regulación de estos mecanismos de control es la más adecuada para el desarrollo de esta labor  en el Estado democrático.
Propuesta metodológica para el estudio de los intersticios urbanos y su potencial uso como espacio público
Authors: Fernández-Gómez Mónica Paola
Published: July 2020

La presente investigación analiza los procesos de expansión socio-espacial yterritorial que generan una desconexión y desarticulación de la estructura urbana, queda origen a espacios intersticiales o vacíos urbanos.Dichos espacios conllevan condiciones de segregación y marginación, por lo que esteestudio resulta determinante para proponer alternativas de regeneración urbana queintegren a la sociedad, en donde los nuevos modelos de planificación se definan bajo laspremisas de intervención de sus principales vacíos urbanos determinando oportunidadesy posibilidades que generen estrategias adecuadas a las realidades sociales.Se estudia a partir de un enfoque morfológico los componentes de la estructura urbanacomo son: soporte estructural, físico, temporal y fenomenológico, para comprenderlas problemáticas que inciden en el deterioro del tejido urbano social y a su vezdefinir variables para tipificar los intersticios urbanos (como zonas abandonadas, vacíosgeográficos e intersticiales), se analizan sus procesos de configuración y se describen suscaracterísticas morfológicas, funcionales y socio-espaciales que favorecen en procesos deadaptación, ocupación y apropiación del espacio.La importancia de esta investigación radica en desarrollar una metodología decaracterización para la elegibilidad de intersticios urbanos transformables a espaciospúblicos, con la finalidad de que estos sirvan como elementos articuladores de laestructura urbana existente, teniendo como caso de estudio una zona inserta en unpolígono de desarrollo denominado por el IMPLAN (2015) como “Las Joyas” en laciudad de León Guanajuato, México.
Meme educativo: Experiencia para una pedagogía de la cultura visual
Authors: Ligarretto Feo Rennier Estefan
Published: July 2020

Este articulo presenta los resultados de una estrategia educativa que tiene como objeto mediar la práctica docente a partir del uso, creación e interpretación de memes para favorecer los procesos de lectura, análisis y síntesis de contenidos de asignaturas en la educación superior. Para ello, se aborda la cultura visual y la cibercultura como nuevas alternativas multimediales para incorporar al meme. El método empleado presenta un enfoque mixto de corte exploratorio; entre los resultados se evidencia tendencia positiva en relación con generar hábitos de lectura, participación y comprensión de contenidos.
Factors That Influence Thrombus Formation in Early Catheter Dysfunction and Success of Alteplase Therapy in Children with Hemodialysis
Authors: Utama Alexander Jayadi , Trihono Partini Pudjiastuti , Suhartono Raden
Published: July 2020

Introduction: The vascular access modality that is often used to perform regular hemodialysis (HD) measures in children with kidney failure is a tunneled double lumen catheter (TDLC), which has increased its use from 60% in 2011 to 78% in 2014 in Indonesia. The incidence of blockage caused by thrombosis is around 50%. These conditions can occur within the first 24 hours after TDLC, and usually develop within two weeks, causing early catheter dysfunction. Alteplase (rt-PA) is a thrombolytic choice for TDLC dysfunction and heparin, streptokinase, and urokinase. This study aims to determine the factors of thrombus formation in early catheter dysfunction and the effectiveness of alteplase as a therapeutic modality. Method: This study was a case-control study with children aged 0-18 years and suffering from stage 4-5 chronic kidney disease (CKD) who underwent regular HD at Cipto Mangunkusumo National Hospital. Statistical analysis using Mann-Whitney, Chi-square, Fisher’s exact, linear regression, and receiver operating characteristic (ROC) statistical tests. The test was carried out using SPSS version 20 for Windows software. Results: During the period of January 2016 to November 2017, 111 subjects met the criteria. A total of 65 subjects (58.6%) were male, and 46 subjects (41.1%) were female. Analysis showed that each albumin level <3.5 g/dL, hemoglobin (Hb) <10 g/dL, and creatinine> 5 mg/dL were risk factors for early catheter dysfunction that improved with rt- PA (p<0, 05). In multivariate analysis, only albumin levels <3.5 g/dL were associated with early catheter dysfunction. Receiver operating characteristics (ROC) curves show that early catheter dysfunction is at risk of albumin levels with a cutoff of ≤3.71 g/dL (sensitivity of 90.9% and specificity of 52.5%) and Hb levels with a cutoff of ≤8.58 g/dL (sensitivity 54.5% and specificity 77.5%). Rt-PA therapy successfully improves the condition of early catheter dysfunction in 20/22 (90.9%) cases. There were no significant side effects on the use of rt- PA in this study. Conclusion: In children undergoing regular HD with TDLC, hypoalbuminemia <3.5 g/dL, Hb <10 g/dL, and creatinine >5 mg/dL were risk factors for early catheter dysfunction. Alteplase may be useful as a safe therapeutic option. Keywords: tunneled double lumen catheter in children, early catheter dysfunction, rt-PA
Implementasi Knowledge Management System Pada Bank Tabungan Negara di Provinsi Sumatera Selatan
Authors: Antony Fery
Published: July 2020

ABSTRACT

This study discusses the Implementation of Knowledge Management System (KMS) at the National Savings Bank (BTN) in South Sumatra, as a government bank. Given the role of banks in the economy and the extraordinary level of competition. This research is expected to be a reference in implementing KMS in banking. Banks need KMS to run business processes in the application of expertise in organizations, because KMS is able to improve the bank's core competencies. KMS acts as a liaison in the knowledge provider to broaden and deepen knowledge, contribute to overcoming competition between banks in raising funds to create forms of innovative product services provided to the public. This research is to identify the implementation of KMS in the organization, so it can be seen the success factors of KMS in banking institutions. Data collected by questionnaire, then made a research model. The survey results revealed that the KMS model suitable for use as a reference model for KMS implementation in BTN South Sumatra was influenced by factors, namely KM; organizational factors measurement objectives / specific strategies and leadership support, information technology and service innovation to consumers.

Keywords : Implementation KMS, KMS on Banking, KMS Success Factors

ABSTRAK

Penelitian ini membahas Implementasi Knowledge Management System (KMS) di Bank Tabungan Negara (BTN) di Sumatera Selatan, sebagai Bank pemerintah. Mengingat peran bank dalam perekonomian dan tingkat persaingan yang luar biasa. Penelitian ini diharapkan dapat menjadi referensi dalam mengimplementasikan KMS di perbankan. Bank membutuhkan KMS untuk menjalankan proses bisnis dalam penerapan keahlian dalam organisasi, karena KMS mampu meningkatkan kompetensi inti bank. KMS bertindak sebagai penghubung dalam penyedia pengetahuan untuk memperluas dan memperdalam pengetahuan, berkontribusi untuk mengatasi persaingan antara bank dalam mengumpulkan dana untuk menciptakan bentuk-bentuk layanan produk inovatif yang disediakan untuk publik. Penelitian ini untuk mengidentifikasi implementasi KMS dalam organisasi, sehingga dapat dilihat faktor keberhasilan KMS di lembaga perbankan. Data yang dikumpulkan dengan kuesioner, kemudian dibuat model penelitian. Hasil survei mengungkapkan model KMS yang cocok untuk digunakan sebagai model referensi implementasi KMS di BTN Sumatera Selatan dipengaruhi oleh faktor-faktor, yaitu KM; faktor organisasi tujuan pengukuran / strategi tertentu dan dukungan kepemimpinan, teknologi informasi dan inovasi layanan kepada konsumen.
Kata kunci : Implementasi KMS, KMS di Perbankan, Faktor Keberhasilan KMS
Watermarking Video Menggunakan Metode Transformasi Wavelet Diskrit
Authors: Syamsuryadi Syamsuryadi , Aqil Ibnu
Published: July 2020

Abstract

Watermarking videos are useful to determine authentication rights to a video. The step of watermarking is by inserting binary images on an MPEG1 format video using discrete wavelet transformations, and extracting watermark videos. Analysis of video watermark quality can be known by calculatong PSNR. Video watermark quality analysis is done after carrying out the watermarking and extraction process to find out the difference the original video quality and the video watermark and the insertion image used. The results of video watermark quality analysis showed that 100% video watermarks did not change from the original video and binary imagery was better than the color image in the insert image.

Keyword : video watermarking, authentication, binary imagery, insert image, discrete wavelet transformation, PSNR.

Abstrak

Watermarking video berguna untuk menentukan hak otentikasi terhadap suatu video. Tahapan watermarking adalah penyisipan citra biner terhadap suatu video berformat MPEG1 menggunakan transformasi wavelet diskrit, dan melakukan ekstraksi terhadap video watermark. Analisis kualitas video watermark dapat diketahui dengan perhitungan PSNR. Analisis kualitas video watermark dilakukan setelah melakukan proses watermarking dan ekstraksi untuk mengetahui apakah perbedaan  kualitas video asli dengan video watermark dan citra sisipan yang digunakan. Hasil analisis kualitas video watermark menunjukkan bahwa 100% video watermark tidak mengalami perubahan dari video asli dan citra biner lebih baik daripada citra berwarna pada citra sisipan.

Kata kunci : watermarkingi video, otentikasi, citra biner, citra sisipan, transformasi wavelet diskrit, PSNR.