bluuebunny/crossref_metadata_2025 huggingface dataset:
A Prediction based Cloud Resource Provisioning using SVM
Authors: Velayutham Vijayasherly , Chandrasekaran Srimathi
Published: February 2020

Aim:

To develop a prediction model grounded on Machine Learning using Support Vector
Machine (SVM).

Background:

Prediction of workload in a Cloud Environment is one of the primary task in provisioning
resources. Forecasting the requirements of future workload lies in the competency of predicting
technique which could maximize the usage of resources in a cloud computing environment.

Objective:

To reduce the training time of SVM model.

Methods:

K-Means clustering is applied on the training dataset to form ‘n’ clusters firstly. Then, for
every tuple in the cluster, the tuple’s class label is compared with the tuple’s cluster label. If the two
labels are identical then the tuple is rightly classified and such a tuple would not contribute much
during the SVM training process that formulates the separating hyperplane with lowest generalization
error. Otherwise the tuple is added to the reduced training dataset. This selective addition of tuples
to train SVM is carried for all clusters. The support vectors are a few among the samples in reduced
training dataset that determines the optimal separating hyperplane.

Results:

On Google Cluster Trace dataset, the proposed model incurred a reduction in the training
time, Root Mean Square Error and a marginal increase in the R2 Score than the traditional SVM.
The model has also been tested on Los Alamos National Laboratory’s Mustang and Trinity cluster
traces.

Conclusion:

The Cloudsim’s CPU utilization (VM and Cloudlet utilization) was measured and it
was found to increase upon running the same set of tasks through our proposed model.
Diversidad de hongos micorrizógenos arbusculares en plantaciones de café (Coffea arabica) del volcán Tacaná, Chiapas, México
Authors: Bertolini Vincenzo , Montaño Noé Manuel , Salazar-Ortuño Blanca Larissa , Chimal-Sánchez Eduardo , Varela Lucía
Published: February 2020

Antecedentes y Objetivos: El café genera importantes ingresos en el mundo y en particular en Chiapas, México. Sin embargo, su producción podría mejorarse usando hongos micorrizógenos arbusculares (HMA) en lugar de sustituir una especie de cafeto por otra, como ocurre en México. En este trabajo se estimó la diversidad de HMA en plantaciones de Coffea arabica y su relación con el suelo en el volcán Tacaná, en la región del Soconusco, Chiapas.
Métodos: Se recolectó suelo rizosférico en cinco plantaciones (Peloponeso, Montecristo, Chiquihuites, Finca Perú-París y Barrio Nuevo) de C. arabica. Las espo­ras de HMA fueron extraídas por tamizado húmedo y decantación, y montadas en alcohol polivinílico en lactoglicerol, con y sin reactivo Melzer. Las morfoespe­cies de HMA fueron identificadas por morfología de las esporas y su abundancia, riqueza y diversidad estimadas y asociadas con algunas propiedades edáficas.
Resultados clave: Se registraron 10 géneros y 27 morfoespecies de HMA. La abundancia varió de 55 a 198 esporas en 100 g de suelo. Ambispora reticulata fue un nuevo registro para Chiapas y México. Acaulospora fue el género más frecuente y rico en morfoespecies. Chiquihuites destacó por tener más riqueza, diversidad y equitatividad de morfoespecies de HMA, explicadas principalmente por los bajos niveles de materia orgánica y PO4-3 en el suelo. En las otras plantaciones la riqueza y diversidad de HMA dependió de la acidez como controlador del PO4-3 disponible en el suelo. Coffea arabica presentó similar riqueza y distinta composición de HMA que C. canephora, comparado con un estudio previo realizado en C. canephora.
Conclusiones: Coffea arabica favorece la riqueza de HMA en comparación con C. canephora. La disponibilidad del PO4-3 y la acidez del suelo podrían regular la diversidad de los HMA en C. arabica, así como favorecer la presencia de HMA específicos en estas condiciones edáficas. Las especies de Acaulospora y los géneros sólo registrados en C. arabica podrían conformar biofertilizantes para su cultivo en el Soconusco, Chiapas, México.
Palabras clave: acidez edáfica, Ambispora reticulata, cafeticultura, Glomeromycota, micorriza arbuscular, región del Soconusco.
Zerwanie szóstej pieczęci i „dzień wielki gniewu ich” (Ap 6, 17)
Authors: Rucki Mirosław , Szymański Karol , Abdalla Michael
Published: February 2020

W artykule przeanalizowano zagadnienie gniewu Baranka pojawiającego się w opisie wizji złamania szóstej pieczęci w Księdze Objawienia (Ap 6,17).  Gniew Baranka jest czymś niezwykłym i paradoksalnym sam w sobie, gdyż baranek nie jest zwierzęciem kojarzącym się z gniewem. Dlatego też w badaniach zazwyczaj więcej uwagi poświęca się zwycięstwu Baranka i Jego chwale, a także roli, jaką odegrał w zbawieniu ludzi, i Jego uczcie weselnej. Niniejsze studium obejmuje kontekst złamania szóstej pieczęci oraz następujących po nim plag i nieszczęść z odniesieniami do literatury rabinicznej i tekstów innych ksiąg biblijnych. Osobno omówiono poruszenie kosmosu oraz przerażenie ludzi spowodowane gniewem baranka. Dokonano też porównania gniewu ludzkiego z gniewem Bożym.
Optimizing Low–Socioeconomic Status Pregnant Women’s Dietary Intake in the Netherlands: Protocol for a Mixed-Methods Study
Authors: Beulen Yvette H , Geelen Anouk , de Vries Jeanne HM , Super Sabina , Koelen Maria A , Feskens Edith JM , Wagemakers Annemarie
Published: February 2020

Background

Although the importance of maternal nutrition is evident, adherence to dietary guidelines is limited in pregnant women, especially in those with a low socioeconomic status. Promotion of a healthy diet in midwifery practice is promising, as prenatal diet affects both maternal and child health, pregnant women are open to dietary changes during this critical transition, and midwives are their first and most important source of information. Unfortunately, nutrition communication by Dutch midwives is limited.

Objective

The objective of this study is to optimize the dietary intake of low–socioeconomic status pregnant women by contributing to the further development and adjustment of a tool or toolbox to support midwives in providing nutrition communication.

Methods

This interdisciplinary, mixed-methods study includes 2 phases, in which quantitative and qualitative research are complementary. In phase 1, we will conduct a literature study and interviews to gain insight into midwives’ knowledge, needs, and practice. We will obtain data on the dietary intake of low–socioeconomic status pregnant women and factors influencing this intake from another literature study, an interviewer-administered meal-based food frequency questionnaire, and qualitative interviews with pregnant women. We will identify the availability of suitable tools to improve pregnant women’s dietary intake from the literature, interviews, focus groups, and expert meetings. In phase 2, we shall adapt an existing tool or develop a new tool(box), depending on the results of phase 1, and implement it in 5 midwifery practices. Ultimately, a process evaluation will provide insight into barriers and facilitating factors playing a role in the implementation of the tool(box).

Results

The main outcome of this study will be a tool(box) to optimize the dietary intake of Dutch pregnant women. We anticipate that the developed or adjusted tool(s) will be available in February 2020. After we implement the tool(s) and evaluate the implementation process, the final results should be available by February 2021.

Conclusions

This study is scientifically and socially relevant, as we will study low–socioeconomic status pregnant women’s contextual dietary intake in-depth from an ecological perspective on health. The results obtained will lead to recommendations for multidisciplinary strategies to promote a healthy maternal dietary intake in low–socioeconomic status populations.

International Registered Report Identifier (IRRID)

DERR1-10.2196/14796
Seeking Meaningful Innovation: Lessons Learned Developing, Evaluating, and Implementing the Electronic Patient-Reported Outcome Tool (Preprint)
Authors: Steele Gray Carolyn
Published: February 2020

UNSTRUCTURED

Digital health solutions, in particular information communication technologies, often experience implementation failures leading to slower adoption than expected. This implementation challenge has spurred the development of frameworks to help navigate this uncertain and messy process. These frameworks point to environmental, organizational, individual, and technological factors that can drive or hinder implementation, with some in the field suggesting that perceived value may play a pivotal role. However, the concept of value can have varying meanings and be challenging to operationalize as a means to support implementation. Attending to philosophical and psychological meaningfulness for users and organizations in which technologies are adopted may offer a useful lens, by linking perceived value to individual behavior changes often required as part of implementing digital health technologies. Lessons learned from developing, evaluating, and implementing the electronic Patient-Reported Outcome (ePRO) tool demonstrate how qualitative methods can be used to uncover meaningfulness. By drawing from this example and other similar studies, this viewpoint offers suggestions on how future inquiry could deepen an understanding of meaningful innovation to help drive the implementation of digital health technologies.
GSA to Obtain SVM Kernel Parameter for Thyroid Nodule Classification
Authors: Pramudita Dias Aziz , Musdholifah Aina
Published: February 2020

Support Vector Machine (SVM) is one of the most popular methods of classification problems due to its global optima solution. However, the selection of appropriate parameters and kernel values remains an obstacle in the process. The problem can be solved by adding the best value of parameter during optimization process in SVM. Gravitational Search Algorithm (GSA) will be used to optimize parameters of SVM. GSA is an optimization algorithm that is inspired by mass interaction and Newton's law of gravity. This research hybridizes the GSA and SVM  to increase system accuracy. The proposed approach had been implemented to improve the classification performance of Thyroid Nodule. The data used in this research are ultrasonography image of Thyroid Nodule obtained from RSUP Dr. Sardjito, Yogyakarta. This research had been evaluated by comparing the default SVM parameters with the proposed method in term of accuracy. The experiment results showed that the use of GSA on SVM is capable to increase system accuracy. In the polynomial kernel the accuracy rose up from 58.5366 % to 89.4309 %, and 41.4634 % to 98.374 % in Polynomial kernel
The Evaluation QS-WFQ Scheduling Algorithm For IoT Transmission To Cloud
Authors: Hasfani Hirzen , Riasetiawan Mardhani
Published: February 2020

This study using the Weighted Fair Queue scheduling algorithm when the weights can change and calculated based on changes in the average queue size in the buffer. This algorithm divides the priorities of each sensor into three priorities, namely high, medium and low priority. Each queue is given a weight that is adjusted to the resource requirements of each traffic. High priority data will take precedence, but medium and low priority data will remain underserved and guaranteed by network resources.The results of this study show packet loss ratio when the ratio of the number of buffers and the amount of data is 1: 3 with variations in the number of high, medium and low priority buffers 75: 75: 150 and 50: 50: 200 is 0%. The delay time in the high priority and the medium priority buffer has almost the same delay time when data is transmitted, whereas for the low priority buffer increased in the delay time.
Classification of Traffic Vehicle Density Using Deep Learning
Authors: Kholik Abdul , Harjoko Agus , Wahyono Wahyono
Published: February 2020

The volume density of vehicles is a problem that often occurs in every city, as for the impact of vehicle density is congestion. Classification of vehicle density levels on certain roads is required because there are at least 7 vehicle density level conditions. Monitoring conducted by the police, the Department of Transportation and the organizers of the road currently using video-based surveillance such as CCTV that is still monitored by people manually. Deep Learning is an approach of synthetic neural network-based learning machines that are actively developed and researched lately because it has succeeded in delivering good results in solving various soft-computing problems, This research uses the convolutional neural network architecture. This research tries to change the supporting parameters on the convolutional neural network to further calibrate the maximum accuracy. After the experiment changed the parameters, the classification model was tested using K-fold cross-validation, confusion matrix and model exam with data testing. On the K-fold cross-validation test with an average yield of 92.83% with a value of K (fold) = 5, model testing is done by entering data testing amounting to 100 data, the model can predict or classify correctly i.e. 81 data.
Klasifikasi Sel Darah Putih dan Sel Limfoblas Menggunakan Metode Multilayer Perceptron Backpropagation
Authors: Liyantoko Apri Nur , Candradewi Ika , Harjoko Agus
Published: February 2020

Leukemia is a type of cancer that is on white blood cell. This disease are characterized by abundance of abnormal white blood cell called lymphoblast in the bone marrow. Classification of blood cell types, calculation of the ratio of cell types and comparison with normal blood cells can be the subject of diagnosing this disease. The diagnostic process is carried out manually by hematologists through microscopic image. This method is likely to provide a subjective result and time-consuming.The application of digital image processing techniques and machine learning in the process of classifying white blood cells can provide more objective results. This research used thresholding method as segmentation and  multilayer method of back propagation perceptron with variations in the extraction of textural features, geometry, and colors. The results of segmentation testing in this study amounted to 68.70%. Whereas the classification test shows that the combination of feature extraction of GLCM features, geometry features, and color features gives the best results. This test produces an accuration value 91.43%, precision value of 50.63%, sensitivity 56.67%, F1Score 51.95%, and specitifity 94.16%.
Pertautan Citra Tampak Atas dengan Metode Stereoskopik untuk Menghilangkan Distorsi Perspektif
Authors: Pertiwi Endang , Prastowo Bambang Nurcahyo , Awaluddin Lukman
Published: February 2020

Stitching citra with different object’s depth and disposed close to the camera willing caused panoramic citra with distortion perspective (caused double or disappear object) because the camera see in two dimension with large horizontal disparity by each camera. For solve that problem, stereoscopic method purpose to give depth perception of three dimension from two images with same background so information of depth by the object be able to get with intuitive way.This research presented system with ROI segmentation for any static objects, stitching for each objects and combine them become a panoramic image then shown in citra panoramic. SIFT descriptor used for detect and extract feature from the images. The result of this system successful presented combination for stitching by the static objects.
Sistem Pengenal Isyarat Tangan Untuk Mengendalikan Gerakan Robot Beroda menggunakan Convolutional Neural Network
Authors: Adi Habib Astari , Candradewi Ika
Published: February 2020

Currently, Human and computer interaction is generally done using a remote control. This approach tends to be impractical for wheeled robot operation because it must always carry an intermediary tool during the operation. The application of hand gesture recognition using digital image processing techniques and machine learning in the control process of wheeled robots will facilitate the control of wheeled robots because control no longer requires an intermediary tool.In this study, hand image taken using a camera then will be processed using a single board computer to be recognized. The results of recognized are passed on to arduino leonardo and DC motor to control twelve wheeled robot movement. The method used in this study is contrast stretching for preprocessing and Convolutional Neural Network (CNN) for hand recognition. This method is tested with a variation of  bright 26-140 lux, the distance from the face to the camera is 120-200cm. Hand recognition systems using this method resulting accuracy 97,5%, precision 97,57%, sensitivity 97.5%, spesificity 99,77 and f1 score 97.45%.
La producción discursiva de profesores de química en formación inicial: Una experiencia en la enseñanza de ciencias mediada por el cine
Authors: Zambrano González Néstor Alexander , Muñoz Albarracín Liz Mayoly
Published: February 2020

Esta investigación se fundamentó en un dispositivo teórico derivado de los estudios del discurso de Mijaíl Bajtín (1982); con el objetivo de caracterizar el discurso de naturaleza científica de tres profesores de química en formación inicial que participaron en la implementación de una secuencia de enseñanza y de aprendizaje diseñada alrededor de la química detrás de algunos efectos especiales mecánicos utilizados en producciones cinematográficas. En particular, este artículo muestra los resultados de la experiencia mediante la construcción de lo que se denominó: Plano de Caracterización Discursiva, un modelo inédito de análisis fundamentado teórica y metodológicamente, emergente de este trabajo, con el que se identificó y caracterizó el discurso de los participantes.
REFUGIADOS ECONÔMICOS E VISTO HUMANITÁRIO NO BRASIL: DESAFIOS E POSSIBILIDADES A PARTIR DA ATUAÇÃO DA DEFENSORIA PÚBLICA DA UNIÃO EM CRICIÚMA
ECONOMIC REFUGEES AND HUMANITARIAN VISA IN BRAZIL: CHALLENGES AND POSSIBILITIES FROM THE WORK OF THE PUBLIC DEFENDER OF THE UNION IN CRICIÚMA
Authors: Lima Fernanda da Silva , Duarte Mônica , Stefani Pedro Henrique
Published: February 2020

O artigo aborda a temática do refúgio motivado por razões econômicas. Expressa o conceito de refúgio e analisa os instrumentos jurídicos internacionais e Convenções Regionais ligados aos direitos dos refugiados, destacando a importante participação da Defensoria Pública da União na materialização desses direitos. Assevera a construção da expressão refugiado econômico e traça um conceito para essa categoria. Estuda o procedimento para a obtenção do status de refugiado, apresentando os obstáculos e as alternativas que podem ser adotadas. Apresenta a lacuna jurídica existente em relação aos refugiados econômicos no âmbito do direito internacional dos refugiados e a necessidade da Defensoria Pública da União em encontrar viabilidade jurídica para garantir os direitos fundamentais dos solicitantes em Criciúma. Apura a importância da resolução normativa nº 27 do Conselho Nacional de Imigração frente à ineficácia da Lei 9.474/97 bem como a omissão da legislação, no que diz respeito aos direitos econômicos, culturais e ao desenvolvimento, e conclui pela necessidade de proteção dos refugiados econômicos independente do enquadramento nos exatos termos dos instrumentos específicos de proteção aos refugiados. A metodologia usada no presente artigo foi bibliográfica e indutiva.
A (NÃO) UTILIZAÇÃO DOS INSTRUMENTOS JURÍDICOS DO MERCOSUL, PELO BRASIL, NA RECEPÇÃO DOS IMIGRANTES VENEZUELANOS
THE (NON) USE OF MERCOSUR LEGAL INSTRUMENTS, BY BRAZIL, ON THE RECEPTION OF VENEZUELAN IMMIGRANTS
Authors: Costa Vitória Volcato da , Vieira Luciane Klein
Published: February 2020

A crise humanitária instaurada na Venezuela, nos últimos anos, provocou intenso fluxo migratório, impondo desafios para a região. O MERCOSUL, enquanto ator regional, possui normas e órgãos especializados amparados na livre circulação de pessoas e proteção dos direitos humanos dos migrantes, instituindo políticas que, inclusive, buscam constituir um conceito de cidadania regional. O Brasil é Estado Parte fronteiriço com a Venezuela, sendo um dos destinos dos migrantes venezuelanos. Diante do cenário exposto, este artigo aborda o seguinte problema de pesquisa: o Brasil vem utilizando os instrumentos do MERCOSUL, nas suas medidas jurídicas e políticas migratórias adotadas em relação aos imigrantes venezuelanos, de modo a cumprir os objetivos do bloco relativos à livre circulação de pessoas e à proteção dos direitos humanos dos migrantes? Os métodos de pesquisa empregados são o histórico e o normativo-descritivo, através de revisão bibliográfica e análise documental. Os resultados demonstram que o Brasil não aplica as normas do MERCOSUL sobre livre circulação de pessoas aos imigrantes venezuelanos, e a política migratória não é coordenada em sincronia com os demais Estados Partes. Logo, tal recepção não está ocorrendo conforme os objetivos do bloco na temática migratória, ainda que tenham sido tomadas medidas de proteção aos direitos humanos.
Estimación del riesgo ambiental causado por plaguicidas en cultivos de arveja de Ipiales, Nariño-Colombia
Authors: Álvarez-Sánchez David , Chaves-Morillo Diana , Gómez-López Eyder , Hurtado-Benavides Andrés
Published: February 2020

En el municipio de Ipiales, departamento de Nariño, se concentra la mayor área cultivada con arveja (Pisum sativum) de Colombia, con cerca de 3.070 ha, en donde se ha identificado un alto uso de plaguicidas asociado al establecimiento del modelo productivo. Por tanto, el objetivo de este estudio es evaluar el riesgo de impacto ambiental que genera la aplicación de los principales fungicidas, insecticidas, herbicidas y bactericidas. Para ello, se consideraron tres grupos de campesinos, previamente identificados como C1, C2 y C3 con una muestra de diez fincas por grupo. En una parcela de cada finca se determinó la materia orgánica, pH, textura, densidad aparente, distancia a fuentes hídricas y se caracterizaron los plaguicidas usados en dos ciclos de cultivo de arveja. La información recolectada fue ingresada al sistema de soporte IIRAmb para estimar el indicador I-PHY, el cual determinó el impacto ambiental de los plaguicidas. Los resultados sugieren la presencia de 44 ingredientes activos, con un uso promedio finca de 25,1 kg/ha/año; el indicador I-PHY global presentó diferencias estadísticas significativas entre C1 (4,04) respecto a C2 (5,06) y C3 (5,28), estos últimos grupos, mostraron el mayor riesgo ambiental principalmente por el tipo de moléculas usadas y las condiciones en las cuales se desarrolló el cultivo. A partir de estos resultados se genera una herramienta de monitoreo y evaluación, con el fin de mejorar las intervenciones en el sistema para incrementar el nivel de sustentabilidad.
Scenarios for Small and Medium Enterprises (Smes) Provisions in the North American Free Trade Agreement (Nafta) Renegotiation: a Critical Analysis of Challenges and Opportunities
Authors: Vargas Hernández José , Orozco-Quijano Elsa Patricia , Vichez Jorge
Published: February 2020

The aim of this paper is to set some scenarios for small and medium enterprises (SMEs) from a critical analysis of the provisions in the North American Free Trade Agreement (NAFTA) renegotiation, its challenges and opportunities. The critical analysis departs from the questionable position of the withdrawal from NAFTA and their consequences for SMEs of not giving continuity through a process of renegotiation among the three partners. The method used is the critical analysis based mainly in some sources of information, analysis of results of NAFTA, and the strategic examination of its challenges and opportunities for SMEs. Finally, the analysis establish some possible scenarios post-NAFTA renegotiation and some strategic proposals for the SMEs.
Mapas del conocimiento y su elaboración
Authors: Garzón Castrillon Manuel Alfonso
Published: February 2020

Este artículo se desarrolla a través de la revisión teórica y conceptual sobre los mapas del conocimiento y su elaboración, se desarrollan en los siguientes temas: los antecedentes; que es un mapa del conocimiento; beneficios del mapeo del conocimiento; principios para la creación del mapa del conocimiento; fuentes del mapeo del conocimiento; etapas para el mapeo del conocimiento y conclusiones, se ubicaron sesenta y ocho (68) documentos en fuentes secundarias de bases de datos de artículos científicos como: Scopus, WoS, y Scielo, y el tipo de revisión es cualitativo, descriptivo.
Aplicación de un Software en Comprensión de Textos en Inglés para Estudiantes en Perú
Authors: Laura De La Cruz Kevin Mario , Velarde Molina Jehovanni Fabricio
Published: February 2020

El presente artículo está referido a determinar los resultados de la aplicación Software JClic en la comprensión de textos en el área de inglés, en las estudiantes del nivel secundario de una institución educativa en Perú, en este caso en la I.E.P Santa Ana en el año 2018.
Se desarrolló bajo un diseño pre experimental pretest y postest con un solo grupo luego de la prueba de entrada se utilizó el software JClic a través de computadoras en laboratorios, hasta tomar la prueba de salida finalizando el semestre de estudios.
De un total de 19 estudiantes después de la aplicación software JCLIC, el  89.47% de los estudiantes han alcanzado un nivel logro destacado, el 10.53% de los estudiantes están en el nivel logro esperado, el 0% de los estudiantes están en el nivel en proceso y un 0% de los estudiantes están en el nivel en inicio.
Por los resultados obtenidos se puede afirmar: con la aplicación del software JClic las estudiantes del cuarto grado de nivel secundario de la I.E.P Santa Ana en el año 2018 han logrado mejorar su nivel  en la comprensión de textos en la forma afirmativa del pasado simple en el área de inglés.
A dyke as a relic of Dutch settlement on the example of Vogla street in Wilanów
Authors: Sikora Dorota
Published: February 2020

Artykuł dotyczy genezy i historii przekształceń ulicy Vogla, historycznie znajdującej się w granicach położonych w pobliżu Warszawy Dóbr Wilanowskich, obecnie będącej jedną z najintensywniej użytkowanych dróg dzielnicy Wilanów. Ulica Vogla w swoim obecnym przebiegu powstała w XIX w., w związku z intensyfikacją osadnictwa, w tym głównie osadnictwa holenderskiego, na nadwiślańskich obrzeżach Dóbr Wilanowskich. Osadnicy, przystosowując do celów użytkowych tereny zalewowe, wprowadzili wiele charakterystycznych dla swojej kultury i tradycji form zagospodarowania krajobrazu. Jedną z nich były wzmacniane faszyną i kamieniami drogi budowane na wysokich ziemnych wałach, czasami obsadzane topolami lub wierzbami czyli trytwy. Ulica Vogla, a w szczególności jej wyniesiona ponad podmokłe tereny część środkowa jest właśnie przykładem trytwy. Stanowi ona obecnie jeden z nielicznych elementów dokumentujących historyczny wpływ kultury osadników holenderskich na rozwój nadwiślańskich terenów Wilanowa i ze względu na swoja wartość powinna podlegać ochronie konserwatorskiej.
The phenomenon of heterosis and experience in crossing different breeds of sheep in Serbia
Authors: Petrovic Milan , Caro-Petrovic Violeta , Ruzic-Muslic Dragana , Maksimovic Nevena , Pavlovic Ivan , Cekic Bogdan , Cosic Ivan
Published: February 2020

Crossbreeding serves as a predictable and cost-effective method to
genetically increase lamb body weight by mating two or more breeds of sheep.
The crossing over breed comes to a far greater number of combinations of
genes and thus is more likely to express favorable allele carriers of
economically important traits. The phenomenon of heterosis has used since
the beginning of the last century. However, its genetic basis has remained
unclear. From the very beginning of the knowledge of heterosis to the
present day, there are several theories, but neither theory able to answer
all questions that arise regarding the apparent strength of the F1
generation offspring. Not assert anything about the genetic or molecular
phenomenon that causes heterosis. It has been increasingly experimentally
confirmed that heterosis is the result of highly complex interactions within
the genome as well as between the genome and the environment. In Serbia,
some activity of domestic researchers regarding crossbreeding of sheep after
the Second World War has been recorded up to date. It found out that crosses
have a higher body weight than the maternal base in the F1 generation. In
other words, they had better fattening capacity than purebreds. However, the
results are not always in line with expectations due to the influence of
various known and unknown factors. This review paper aims to draw attention
to the phenomenon of heterosis through experience in its application in
Serbia, in the hope that this biological phenomenon would clarify in the
near future by applying modern scientific understandings and technologies.
The attitudes of table egg consumers in Serbia on the welfare of laying hens
Authors: Tolimir Natasa , Maslovaric Marijana , Skrbic Zdenka , Radisic Robert , Lukic Milos , Rajkovic Borislav
Published: February 2020

In order to examine the attitude of egg consumers about the poultry welfare
and their willingness to spend more money to buy eggs produced in accordance
with animal welfare principles, 529 consumers were surveyed in three regions
of Serbia (Belgrade, region of Sumadija and Western Serbia and South and
Eastern Serbia region). Through the survey questionnaire, consumers have
stated how important the welfare of laying hens is to them and if they are
willing to spend more money on eggs produced acording to principles of
animal welfare. The answers of the surveyed consumers were analyzed by
gender, age, education, number of children in the family and the environment
in which they live. According to the results of the survey, it can be
concluded that in Serbia, poultry welfare is moderately important to 28.17%
of egg consumers and very important to 50.77% of consumers, while not at all
or little to 21.13%, and that there are differences between individual
regions. The willingness to pay more for eggs produced according to welfare
principles was expressed by 78.53% of consumers, on average for all three
regions. The analysis of data within the category of consumers for which the
poultry welfare is very important, revealed that 54.15% are women and 44.02%
are men, and that the welfare is more important for consumers with higher
education (52.66%) compared to middle school (47.67%), also, for consumers
in the 35-55 age group (55.60%) compared to younger and older respondents
and those with three or more children in the family (52.94%) compared to
families with fewer children. The survey results indicate that consumers in
Serbia attribute more importance to the welfare of laying hens, and show
their willingness to pay more for eggs produced in compliance with the
welfare principles. In the coming period, the education focusing on the
increase of consumer awareness of the importance of the welfare of laying
hens and the connection with the quality of the product will be necessary.
Trend analysis of harvested area, total production and yield of alfalfa in Vojvodina
Authors: Mandic Violeta , Bijelic Zorica , Krnjaja Vesna , Petricevic Maja , Simic Aleksandar , Krga Ivan
Published: February 2020

Vojvodina Province is a major alfalfa producer in Serbia with approximately
35.7% of total area and total production share of approximately 43.1%. In
this paper, the data on area, production and yield of alfalfa observations
from 1947 to 2018 and their variation and trends are analysed. The data
indicate wide differences in the harvested area, total production and yield
of alfalfa. The analysis of data indicates that harvested area and total
production of alfalfa have declined over the past decades. Yield trend shows
strong yield increase during 1950-1980 followed by periods of declined
growth rates to 1990. After 1990s, dry matter yield has been stagnant.
However, the increase, decrease and stagnation in yield are not strictly
linear.
Subclasses of meromorphic functions associated with a convolution operator
Authors: Aouf Mohamed , Bulboacă Teodor , Seoudy Tamer
Published: February 2020

The purpose of the present paper is to introduce a subclass of meromorphic
functions by using the convolution operator, that generalizes some
well-known classes previously defined by different authors. We discussed
inclusion results, radius problems, and some connections with a certain
integral operator.
New hybrid algorithms for global minimization of common best proximity points of some generalized nonexpansive mappings
Authors: Puangpee Jenwit , Suantai Suthep
Published: February 2020

In this paper, we introduce two hybrid algorithms for finding a common best
proximity point of two best proximally nonexpansive mappings. We establish
strong convergence theorems of the proposed algorithms under some control
conditions in a real Hilbert space. Moreover, some numerical examples are
given for supporting our main theorems.
Characterizing approximate global minimizers of the difference of two abstract convex functions with applications
Authors: Sattarzadeh A.R. , Mohebi H.
Published: February 2020

In this paper, we first investigate characterizations of maximal elements of
abstract convex functions under a mild condition. Also, we give various
characterizations for global "-minimum of the difference of two abstract
convex functions and, by using the abstract Rockafellar?s antiderivative, we
present the abstract ?-subdifferential of abstract convex functions in terms
of their abstract subdifferential. Finally, as an application, a necessary
and sufficient condition for global ?-minimum of the difference of two
increasing and positively homogeneous (IPH) functions is presented.
Grüss-Landau inequalities for elementary operators and inner product type transformers in Q and Q* norm ideals of compact operators
Authors: Lazarevic Milan
Published: February 2020

For a probability measure ? on ? and square integrable (Hilbert space) operator
valued functions {A*t}t??, {Bt}t??, we prove Gr?ss-Landau type operator
inequality for inner product type transformers |?? AtXBtd?(t)- ?? At
d?(t)X ?? Btd?(t)|2? ? ||??AtA*td?(t)- |??A*td?(t)|2||? (?? B*tX*XBtd?(t)- |X?? Btd?(t)|2)?, for all X ? B(H) and for all ? ? [0,1]. Let p ? 2, ? to be a
symmetrically norming (s.n.) function, ? (p) to be its p-modification, ?
(p)* is a s.n. function adjoint to ?(p) and ||?||?(p)* to be a norm on
its associated ideal C?(p)*(H) of compact operators. If X ? C?(p)*(H)
and {?n}?n=1 is a sequence in (0,1], such that ??n=1 ?n = 1 and ??n=1
||?n-1/2 An f||2+||?-1/2n B*nf||2 < +? for some families {An}? n=1
and {Bn}? n=1 of bounded operators on Hilbert space H and for all f ? H,
then ||?? n=1 ?-1n AnXBn-?? n=1 AnX ?? n=1 Bn||?(p)* ? ||???n=1 ?-1n |An|2-|??n=1 An|2 X ? ??n=1 ?-1n |B*n|2-|??n=1 B*n|2||?(p)+, if
at least one of those operator families consists of mutually commuting
normal operators. The related Gr?ss-Landau type ||?||?(p) norm
inequalities for inner product type transformers are also provided.
A competition model with herd behaviour and allee effect
Authors: Sen Prosenjit , Maiti Alakes , Samanta G.P.
Published: February 2020

In this work we have studied the deterministic behaviours of a competition
model with herd behaviour and Allee effect. The uniform boundedness of the
system has been studied. Criteria for local stability at equilibrium points
are derived. The effect of discrete time-delay on the model is investigated.
We have carried out numerical simulations to validate the analytical
findings. The biological implications of our analytical and numerical
findings are discussed.
Growth and yield response of okra (Abelmoschus esculentus (L.) Moench) to fertilizer types and times of application in the southern guinea savanna agro-ecozone of Nigeria
Authors: Fasakin Kola , Afe Ade , Saka Nurat
Published: February 2020

A field study was carried out at the Kwara State University Teaching and
Research Farm, Malete, to evaluate the response of vegetative growth and
immature fruit yield of okra (Abelmoschus esculentus (L.) Moench) to three
fertilizer types and three times of application. The fertilizer types, used
at the rate of 60 kgN/ha, were Kwasu organic-based fertilizer type 2
(KOBF-2), Aleshinloye organo-mineral fertilizer grade A (AOMF-A), and
inorganic NPK 15- 15-15 fertilizer (NPK), each applied at planting time, 2
weeks after planting (WAP), and 4 WAP. The trial was laid out in a 3 x 3
factorial arrangement in a randomized complete block design and replicated
three times. All the data collected were subjected to analysis of variance,
using the SAS statistical package, and the treatment means were separated
using Duncan?s Multiple Range Test at 5% probability level. The result
indicated no significant differences in plant height, number of
leaves/plant, number of fruits/plant, and the average length of the fruits
between fertilizer types and application times. However, there were
significant differences in leaf area/plant at 6WAP and fruit yield.
Irrespective of the times of application, KOBF-2 gave significantly higher
immature fruit yield (2.84 t/ha) than NPK (1.93 t/ha) and AOMF-A (1.72
t/ha). The results thus suggest that the new organic-based fertilizer
formulated in this study (KOBF) deserves incorporation into national
fertilizer programs for sustainable crop production.
Genetic polymorphism of β-Lactoglobulin gene in indigenous Nigerian goat breeds
Authors: Ezewud Anthony , Abubakar Rukayyat , Egena Acheneje , Alabi John
Published: February 2020

Polymorphism at the ?-Lactoglobulin (?-LG) gene of three Nigerian goat
breeds, namely: the West African Dwarf, Sahel and Red Sokoto goats, was
investigated using the Polymerase Chain Reaction-Random Fragment Length
Polymorphism (PCR-RFLP) method. The restriction endonucleases used in the
study were Rsal and Mspl, respectively. The results revealed the existence
of only one polymorphic variant (allele A) with a gene frequency of 1.0 in
all the three goat breeds studied. The amplified products were observed at
120 bp and the restriction digestion with Rsal revealed just one genotype at
the ?-LG locus. It was concluded that there was the absence of polymorphism
at the ?-LG locus of the goats investigated.
New promises and future challenges of fractal calculus: From two-scale thermodynamics to fractal variational principle
Authors: He Ji-Huan , Ain Qura-Tul
Published: February 2020

Any physical laws are scale-dependent, the same phenomenon might lead to debating theories if observed using different scales. The two-scale thermodynamics observes the same phenomenon using two different scales, one scale is generally used in the conventional continuum mechanics, and the other scale can reveal the hidden truth beyond the continuum assumption, and fractal calculus has to be adopted to establish governing equations. Here basic properties of fractal calculus are elucidated, and the relationship between the fractal calculus and traditional calculus is revealed using the two-scale transform, fractal variational principles are discussed for 1-D fluid mechanics. Additionally planet distribution in the fractal solar system, dark energy in the fractal space, and a fractal ageing model are also discussed.
Duality for a class of second order symmetric nondifferentiable fractional variational problems
Authors: Prasad Ashish , Singh Anant , Khatri Sony
Published: February 2020

The present work frames a pair of symmetric dual problems for second order nondifferentiable fractional variational problems over cone constraints with the help of support functions. Weak, strong and converse duality theorems are derived under second order F-convexity assumptions. By removing time dependency, static case of the problem is obtained. Suitable numerical example is constructed.
Efectos físicos de la iluminación en medios impresos para la lectura en discapacidad visual
Authors: Cano Celestino María Graciela , Ramírez Martínez Claudia
Published: February 2020

Si bien se han realizado esfuerzos enfocados a las mejoras de los productos de lectura en términos de comprensión, retención, memoria, velocidad de lectura, entre otros, y su eficacia en asociación con determinados usos ortotipográficos, se ha estudiado poco la incidencia de la iluminación ambiental sobre el soporte papel, material en el que se conllevan los escritos y su efectividad o limitación en el rendimiento y la permanencia en el lector, sobre todo en personas con discapacidad visual. En esta investigación se estudió el nivel de luminosidad de los sustratos para textos impresos con la finalidad de optimizar el proceso de lectura en espacios universitarios. Se seleccionaron tres muestras de papel de uso común y se midió su nivel de luminosidad a través de luxómetro en ambiente natural y artificial. Se compararon las medias de la luminosidad del papel cuché con las del tipo prensa por la mañana (p = 0.005) y por la tarde (p = 0.002) y se observó una diferencia significativa a favor del primero; y una diferencia también significativa al mediodía a favor del offset (p = 0.002) al comparar sus medias de luminosidad con las del tipo prensa (cuyo índice fue menor en todos los casos). Los resultados exponen el nivel de luminosidad de estos sustratos y su conocimiento supone mejoras en términos de bienestar para el usuario en condiciones de uso temporal o permanente del objeto en atención a su índice de reflectancia.
SUMBER STRES, STRATEGI KOPING, GEJALA STRES, DAN KEPUASAN PERKAWINAN PADA ISTRI BEKERJA
Authors: Fala Maulidia , Sunarti Euis , Herawati Tin
Published: February 2020

Wives who work in the public sector have increased every year in both formal and informal occupations. This study aims to analyze the differences and effects of stress sources, coping strategies, and stress symptoms on marital satisfaction in working for married families. This study uses a cross-sectional study design. Research respondents are wives who work in the formal-informal sector, intact families, and are willing to be involved in the research. Withdrawal of respondents using probability sampling methods and disproportional stratified random sampling techniques with respondents totaling 120 (n = 65 formal) and (n = 55 informal). The results showed that age, length of education, per capita income, sources of stress, coping strategies, and marital satisfaction with wives with formal occupations had higher mean values. Large family, length of the marriage, long hours of work, length of workdays, and symptoms of stress on wives with informal types of work have a higher average value. Marriage satisfaction is significantly positively influenced by coping strategies and negatively affected significantly by stress symptoms. Job characteristics (the type of work, length of work hours, length of workdays) have an indirect effect on marital satisfaction.
SELF-ESTEEM REMAJA PADA KELUARGA UTUH DAN TUNGGAL: KAITANNYA DENGAN KOMUNIKASI DAN KELEKATAN ORANG TUA-REMAJA
Authors: Hadori Rachmawati , Hastuti Dwi , Puspitawati Herien
Published: February 2020

The developmental of self-esteem is very important for adolescents. The high self-esteem refers to ability to predict the success and well-being of adolescents in their adulthood. This study examines the influence of parents-adolescent communication and attachment on adolescents’ self-esteem in intact and single-parent families. This research design was cross-sectional study and was conducted in public and private high schools and vocational schools in Bekasi City. School selection is done purposively. Participants of this study were 200 students who fit with the criteria which are students of class X - XII with an age range of 14-19 years from selected schools in the city of Bekasi from intact and single families. Data analysis wa done by descriptive and inferential analysis (independent t-test and multiple linear regression test). The results showed that family status has a significant influence on adolescent’s self-esteem. Parent-adolescent communication and parent-adolescent attachment have significant positive influence on adolescent’s self-esteem. The implications of research indicates the importance of support and education for families and adolescents to improve self-esteem, especially in adolescents from a single family, for example, changing negative perceptions to positive (feeling yourself useless, worthless to be useful and valuable for others).
IMPLEMENTASI PROGRAM BANTUAN PANGAN NON TUNAI (STUDI KASUS DI KOTA CIMAHI)
Authors: Fadlurrohim Ishak , Nulhaqim Soni Akhmad , Sulastri Sri
Published: February 2020

Bantuan Pangan Non Tunai adalah bantuan sosial pangan yang disalurkan dalam bentuk non tunai dari pemerintah kepada KPM (keluarga penerima manfaat) setiap bulannya melalui mekanisme uang elektronik yang digunakan hanya untuk membeli bahan pangan di pedagang bahan pangan atau disebut E-warong yang bekerjasama dengan Bank Penyalur. Kekuatan bantuan sosial pangan non tunai ini adalah penerima manfaat secara efisien dan efektif mampu mengoptimalkan bantuan yang diberikan berdasarkan tingkat kebutuhannya sehingga secara tidak langsung dapat menggairahkan kehidupan ekonomi yang bersangkutan, terjadinya proses internalisasi keuangan inklusif kepada fakir miskin melalui revitalisasi peran lembaga perbangkan, terhindarnya sejumlah kasus inefisien dan inektivitas sebagaimana penyaluran bantuan sosial pangan sebelumnya dan memerlukan manajemen yang baru. Pelaksanaan program BPNT (mencakup : registrasi, penggantian data, kontak informasi dan pengaduan) yang terdiri dari Kordinator Tenaga Kesejahteraan Sosial (TKS) Kabupaten/ Kota, Kordinator Program Keluarga Harapan (PKH) Kabupaten/ Kota, Tenaga Kesejahteraan Sosial Kecamatan (TKSK), Pendamping PKH dan Asisten pendamping PKH untuk daerah sulit. Hal ini sejalan dengan yang disampaikan Weinbach (1994) dalam Kettner (2002), mengatakan bahwa, manajemen dapat dianggap sebagai fungsi spesifik yang dilakukan oleh orang-orang dalam lingkungan kerja yang dimaksudkan untuk meningkatkan produktivitas dan pencapaian tujuan organisasi. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kualitatif yang bertujuan menggambarkan tentang implementasi program Bantuan Pangan Non Tunai (studi kasus di Kota Cimahi). Informan ditentukan berdasarkan purposive sampling (Informan ditentukan berdasarkan pertimbangan tertentu peneliti), teknik pengumpulan data yang digunakan yaitu wawancara mendalam (indeph interview, observasi partisipatif dan studi dokumentasi. Artikel ini menunjukkan Penyaluran bantuan sosial non tunai dengan menggunakan sistem perbankan dapat mendukung perilaku produktif penerima bantuan serta meningkatkan transparansi dan akuntabilitas program bagi kemudahan mengontrol, memantau dan mengurangi penyimpangan. Inilah yang menjadi sistem manajemen baru.
Incidencia de valores religiosos en la regulación de derechos en el final de la vida:análisis de proyectos parlamentarios sobre el rechazo de tratamientos médicos en Argentina
Authors: Alonso Juan Pedro , Esquivel Juan Cruz
Published: February 2020

El artículo examina la influencia de valores religiosos -específicamente de la Iglesia católica- en la regulación de los derechos de los pacientes con enfermedades terminales a rechazar tratamientos por parte del Congreso Nacional de Argentina. A partir del análisis de las iniciativas parlamentarias sobre la temática (entre 1996 y 2012), se discuten las tensiones y articulaciones entre argumentos confesionales y laicos en los intentos de legislar sobre las decisiones en el final de la vida. Se describen las fuentes y los argumentos presentes en estas iniciativas, y la invocación a valores religiosos para fundamentar posiciones divergentes respecto a los derechos de los pacientes terminales. La importante presencia y la apelación a valores religiosos responden a una particular configuración de la laicidad y de la cultura política argentina, que refleja la cristalización de espacios de complementariedad entre lo religioso y lo político.