bluuebunny/crossref_metadata_2025 huggingface dataset:
Governance structures and incentives in the wheat value chain in Ethiopia
Authors:   Department of Transport and Supply Chain Management, University of Johannesburg, Johannesburg, South Africa, Habte Shikur Zewdie , Legesse Belaineh ,   School of Agricultural Economics and Agribusiness, Haramaya University, Haramaya, Ethiopia, Haji Jema ,   School of Agricultural Economics and Agribusiness, Haramaya University, Haramaya, Ethiopia., Jaleta Moti ,   Department of Socioeconomics Research, International Maize and Wheat Improvement Center (CIMMYT), Addis Ababa, Ethiopia
Published: December 2021

Empirical studies on the effects of governance structures on incentives have still received little attention in the wheat value chain research of developing countries. The purpose of this paper is to investigate the effects of governance structures on actors’ incentives in different functional nodes of the wheat value chain. This study used personal interviews to collect primary data from input suppliers, wheat producers, wholesalers, wheat processors and co-operatives. Mixed sampling techniques (i.e. random, census and purposive) were applied to select sampling units. Descriptive statistics and the ordered logit model were used to analyse the data. This paper found that governance structures, opportunistic behaviour, asymmetric information and trust influence actors’ incentives in each functional node of the wheat value chain. Specifically, extension services, governance structures, power relations and price information have significant and positive effects on producers’ price incentives. The study provides pioneering evidence of the effects of governance structures on incentives in each functional node of the value chain. The study adds new knowledge to the existing empirical knowledge. The results recommend government to use effective policy interventions to reduce opportunistic behaviours and asymmetric information, and to adopt incentive strategies to encourage investment, and increase productivity and profitability.
PENGARUH PENGAWASAN TERHADAP KINERJA PEGAWAI PADA BADAN PERIJINAN DAN PENANAMAN MODAL DAERAH PROVINSI KALIMANTAN TIMUR DI SAMARINDA
Authors: Malik Abdul
Published: December 2021

The purpose of this study was to determine the effect of supervision on employee performance at the Regional Licensing and Investment Board (BPPMD) of East Kalimantan Province in Samarinda. This research was conducted using a simple regression analysis tool to find the regression equation. Then to see the level of influence used Pearson product moment correlation coefficient. Then to determine the size of the contribution or influence is used next formula determinant coefficient for hypothesis testing is done by comparing the value of rcount with the value of rtable. The results of this study produce the following equations and values. Obtained a regression equation Ŷ = 2.084 + 0.582 X. And the value of the correlation coefficient (r) of 0.463 and the determinant coefficient of 21.4% of supervision affects the performance of BPPMD employees. In the hypothesis test produces a comparison that is rcount of 0.463> rtable (attached) of 0.297 with a significance level of 5%, so it can be concluded that the working hypothesis (Ha) is accepted and the null hypothesis (Ho) is rejected which means that supervision affects the performance of BPPMD employees East Kalimantan Province in Samarinda. Based on this research, it is suggested to improve employee performance by providing training that is ongoing and increasing supervision is carried out in stages.
An Improved Metaheuristic based Node Localization Technique for Wireless Sensor Networks
Authors:   Department of Bioengineering, University of Louisville, Louisville, KY, USA, Elsharkawy Mohamed ,   Faculty of computers and information, Luxor University, Egypt, Farahat I.S.
Published: December 2021

Cloud computing (CC) becomes a familiar topic in offering unlimited access to services as well as resources via the Internet. A comprehensive CC management system is needed to collect details of the task processing and ensure proper resource allocation with the accomplishment of Quality of Service (QoS). At the same time, virtual machine (VM) migration is a crucial problem in the CC platform which contributes to energy utilization and resource usage. Therefore, this paper presents a new energy-aware elephant herd optimization-based VM migration (EAEHO-VMM) scheme. The EAEHO-VMM algorithm aims to migrate the VMs and prediction failure VMs. At the initial stage, the EHO algorithm is executed to minimize the energy utilization of the VM migration process in the CC environment. In addition, a support vector machine (SVM) model is applied to identify the failure VMs and allows relocation in an effective way. In order to make sure the better performance of the EAEHO-VMM algorithm, a series of simulations take place, and the results are investigated in terms of different aspects. The experimental outcomes ensured the enhanced VM migration performance of the EAEHO-VMM algorithm over the other techniques.
Potassium and growth-promoting fungi improve the postharvest quality of grape tomato
Authors:   Universidade Federal de Viçosa, Cardoso Deise Silva Castro Pimentel Cardoso , Martinez Herminia Emilia Prieto ,   Universidade Federal de Viçosa, Pereira Ariana Mota ,   Universidade Federal de Viçosa, Kasuya Maria Catarina Megumi ,   Universidade Federal de Viçosa, Cecon Paulo Roberto ,   Universidade Federal de Viçosa
Published: December 2021

Tomato plants respond well to potassium fertilization, whose insufficiency leads to a drop in fruit production and quality. On the other hand, the association of growth-promoting fungi (GPF) with roots has been shown to be able to optimize nutrient absorption, which implies lower financial costs and a decreased risk of loss of K applied to the soil. The objective of this study was to investigate the effects of inoculation with GPF and K rates on the postharvest quality of grape tomato hybrid ‘Mascot’ grown in a hydroponic system. The plants were cultivated in a hydroponic drip system using washed and sterilized sand as substrate. They were trained with two stems, leaving three bunches per stem. The experiment was carried out in a splitsplit-plot arrangement in a completely randomized design with three replicates. Ripe fruits were stored for 30 days in PET containers in storage chambers at a temperature of 25 °C. After 0, 10, 20 and 30 days of storage, five fruits were collected to determine the titratable acidity (TA) and soluble solids (SS), reducing sugars (RS) and vitamin C contents. The K rates provided an increase in the quality attributes. At low K rates, inoculation with GPF led to higher TA, SS, RS and vitamin C values. Inoculation of the plants with GPF improved the postharvest preservation of the fruits, especially when the plants underwent nutritional stress during cultivation.
Experimental Investigation of an Acoustic Field Influence on a Development of the Plane Microjet by Particle Image Velocimetry (PIV)
Authors: Litvinenko Yuriy , Litvinenko Maria , Katasonov Mikhail
Published: December 2021

An acoustic field influence on a development of the plane microjet at low Reynolds numbers were investigated experimentally employing Particle Image Velocimetry (PIV). Measurements were performed at synchronization of an acoustic signal phase with a laser flash. Instantaneous velocity fields of different cross- and longitudinal sections are occurred. Receptivity of the plane microjet to transversal acoustic disturbances is shown. PIV-images, correspond to them vector fields and vorticity fields are presented
Investigation of Stationary Vortex Structures in the Model Combustion Chamber
Authors: Anokhina Elizaveta , Dekterev Dmitriy , Shtork Sergey , Alekseenko Sergey
Published: December 2021

This work focuses on experimental and numerical study of stationary vortex structures in a model of vortex combustion chamber of the tangential type. The experiments included the visualization of vortex structures in the work area using a laser light source and a digital high-definition cameras. The calculations were performed using a commercial package STAR-CCM +. From known turbulence models have been chosen the most suitable for the problem under investigation. In the calculations we obtained results that agree well with experimental data, which confirms the adequacy of employed numerical model
The Investigation of Stages of Cross Flow Instability Developing on the Leading Edge of the Swept Wing by Liquid-Crystal Thermography Method
Authors: Tolkachev Stepan , Gorev Vasily , Kozlov Viktor
Published: December 2021

The liquid crystal thermography technique was tested for the investigation of stages of stationary disturbance developing after the roughness element and for indication of turbulence on the swept wing leading edge. It was shown, that stationary disturbance is easy to excite by the roughness element, develops along the streamline. The stationary behavior dependence from the roughness element size was investigated. It was determined, that the turbulence doesn’t develop along the leading edge in the explored speed range
To Touch and Be Touched
Authors: Hacklin Saara
Published: December 2021

In my article, I will present as a case study the collection exhibition shown at the Museum of Contemporary Art Kiasma in 2016.[1] The starting point for the exhibition was the metaphor of touch. As a concept, touch is ambivalent: it is more intimate than sight, which has been the traditional metaphor for knowledge in Western thinking. Yet touching is also about grasping or understanding, as in it we are taking hold of something. Our curatorial team, Eija Aarnio, Arja Miller, and myself, was interested in touch early on, because with it the distance to the observed is lost: when touching something we, too, are being touched. To be clear, we did not want to create an exhibition where spectators are actually able to touch. Instead, we were looking at the collections of the museum and searching for artworks that would “touch” us—works that were able get under our skin. While forming the conceptual core of the exhibition, our curatorial team recognized a tension in the way in which “touchy issues,” affects and emotions, are perceived in our society. On the one hand, we were interested in emotions and affects raised by the artworks. We wanted to focus on the immersive dimension of the art that seems to escape verbalization, a dimension that makes use of the multisensory experience and addresses the viewer in a direct manner. On the other hand, we also became aware of how society in general has been taken over by an emotional surge. If previously feelings and emotions were not meant to be shown in public, today they have become commonplace. What was emotional and affective seems no longer to be private, but shared and public.[2] In fact, strong emotions seem to be a prerequisite for success, be it a matter of reality television or politics. This is also connected to the search for extreme emotions and experiences, an aspect we felt needed to be included in the exhibition—not the least because in museums’ competition for audiences, the experience-laden works are often seen as an answer.
Vestiges of 125,660 Specimens of Natural History
Authors: Springer Anna-Sophie , Turpin Etienne
Published: December 2021

As vestiges of 125,660 Specimens of Natural History, we have selected a number of images and photographs to relay some impressions of the exhibition 125.660 Spesimen Sejarah Alam, which we curated in Jakarta, Indonesia in 2015, and which Anna-Sophie also presented at the “Between the Discursive and the Immersive” conference, held at the Louisiana Museum later that year.
responsabilidad social corporativa: concepto, ámbito de aplicación, grupos de interés y objetivos
Authors: Ayala del Pino Cristina
Published: December 2021

Este artículo analiza el concepto de Responsabilidad Social Corporativa para las empresas y, la sociedad, en general. Asimismo, expone su contexto histórico, las teorías que han influido en su concepción, su ámbito de aplicación, sus grupos de interés y objetivos.
Migración ambiental: un asunto emergente en América Latina. Caso México
Authors: Montalvo Romero María Teresa
Published: December 2021

En la actualidad, la comunidad internacional se enfrenta a un escenario  rodeado de riesgos globales: cambio climático, delincuencia organizada, trata de personas, migraciones ambientales desencadenadas por el aumento del nivel del mar, desertificación, falta de agua, entre otros. La región latinoamericana ha puesto especial énfasis en las migraciones ambientales, enfocándose en que, los flujos migratorios han ido modificándose a lo largo del siglo XXI, descubriendo  que ahora los impactos ambientales establecen un vínculo entre cambio climático y migración. México también tendrá que ir adaptándose a las condiciones presentes, lo que conlleva a plantear una serie de retos importantes para el Estado mexicano.
Diseño de un dispositivo electrónico para registro y transmisión inalámbrica de variables físicas, en función del buen estado de plantas domésticas, para visualización en tiempo real en aplicativo Android para el Bosque Seco del Parque Biotemático Megua
Authors: Díaz Daza Daniel , Meriño Jaimes Dairo , Soto-Montaño Carlos
Published: December 2021

El artículo a continuación presentado consiste en el diseño e implementación de un dispositivo electrónico para el registro y transmisión inalámbrica de variables físicas, en función del buen estado de plantas domésticas para su visualización en tiempo real en un aplicativo Android para el Parque Biotemático Megua. El aplicativo, llamado aka Caribe Smarts Plants, es un prototipo electrónico desarrollado con el objetivo de mejorar la conservación del ecosistema local, así como también brindar educación ambiental sobre el ciclo de vida de las plantas y recopilar información regional sobre las condiciones climáticas y de cuidado de la flora atlanticense. Es así que se logrará brindar una alternativa viable, funcional y de bajo presupuesto, que guarde la información pertinente de plantas locales y permita la adquisición, monitoreo y procesamiento de los datos de las variables ambientales de temperatura ambiente, humedad del suelo, luminosidad y fertilidad, a través de lecturas periódicas transmitidas sobre redes Wi-Fi (IEEE802-1b/g) en una aplicación Android, con el objetivo de promover la recuperación, preservación y protección del ecosistema de bosques secos.
The Image of Media and Journalism on the Pages of the Bulgarian Journalist Periodical (1959–1996): Results of а Quantitative Content Analysis
Authors:   Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria, Sapravliyski Ivaylo
Published: December 2021

This paper presents and analyzes the results of a quantitative content analysis of the periodical called Bulgarian Journalist ‒ Journalism and Society. The main research topic is the role of journalism and media in Bulgaria. Based on publications on the topic, it aims to “bring to light”, as far as possible, journalistic, political and public reflections on the role and place of media and journalism in Bulgarian society during the communist regime and the first years of democratic transformation. The main focus is on five research questions, on the basis of which the periodical is monitored and analyzed. The conclusions drawn at the end have an important research significance.
Techniques and Approaches to Generate Automatic Program Code
Authors:   ", Damyanov Daniel ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: December 2021

Raising the level of digital education is one of the main challenges facing the education system now and in the future. The use of modern technical means in the learning process is an important prerequisite for achieving this ambitious goal. However, this must go hand in hand with the introduction of new scientific methods and teaching approaches. This article presents different approaches which the author has applied in her practice with high school students. It proves the benefit of their implementation in the educational process.
The State and Media Financing: Bulgaria and the Mediterranean Media Model
Authors:   ", Indjov Ivo ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: December 2021

The study examines the applicability of the comparative framework of Hallin and Mancini (2004) with their three models of media‒politics relations (Mediterranean or Polarized Pluralist Model, North/ Central European or Democratic Corporatist Model, and North Atlantic or Liberal Model) to a post-communist country like Bulgaria. The answer to this question is sought through a study of the role of the state in relation to the media system, particularly the state funding of media in its various forms. The analysis leads to the conclusion that the Bulgarian media system is most similar to the Mediterranean Model due to the power of еtatism (the state finances public media, and the government buys media love through state and municipal advertising). At the same time, ineffective media regulation favors media concentration and the instrumentalization of large government media groups. The processes of rapid liberalization, privatization and deregulation in the media sector after 1989 brought Bulgaria closer to the countries included in the Liberal Model. Therefore, its media system is hybrid to some extent, but the similarities with the Mediterranean Model remain in the lead. The clientelism through which they are tamed, resp. corrupt the media, brings Bulgaria closer to the Latin American countries where it is much stronger than in the Mediterranean region (Hallin, Papathanassopoulos 2002). The concluding part predicts that, in the future, the analysis of the Bulgarian media system can be enhanced with a study of the applicability of the concepts of the “captured liberal model” of the media (in Latin America) and the “captured media” in the post-communist world.
Ensino superior, pandemia e trabalho: rupturas e continuidades
Authors: Silva Rusvênia , Santos da Silva Daniel
Published: December 2021

Atualmente alguns desafios se apresentam que confrontam nossas capacidades coletivas de lidar com rupturas drásticas em nossas experiências espaço-temporais. Se focamos em problemas relacionados ao ensino superior, especialmente no Brasil, a pandemia desafia a própria existência da universidade e instituições afins – como as conhecemos, pelo menos; desde o avanço da ideologia neoliberal até o estabelecimento da pandemia do novo coronavírus enlaçam-se conflitos e contradições que nos levam a indagar a respeito do que seriam mudanças estruturais ou adaptações momentâneas em tal contexto; assim, neste artigo, procuramos levantar algumas questões sobre a realidade do ensino superior e o advento da pandemia, recolocando possibilidades de sentido que correm risco de serem invisibilizadas diante de uma crise sanitária que reverbera outras crises e que segue ceifando vidas pelo mundo.
A Critical View on Pension Savings in Slovakia
Authors: Špirková Jana , Dobrovič Martin , Vinczeová Miroslava
Published: December 2021

In almost all countries around the world, pension systems are based on several pillars. This is also the case of Slovakia with its three-pillar pension system. The paper presents a case study underlying the risks that can seriously affect the amount of future pensions. The case study clearly indicates that current pensions in Slovakia paid under all three pillars do not correspond with the expectations from the implementation of the three-pillar pension system. The aim of the paper is to the risks that can seriously affect the amount of future pensions. Our own contribution is the determination of the amount of pension for a specific pensioner specified in the presented case study. Within the saving phase of pension contributions the development of investment fund returns, the amount of future pensioner´s contributions, as well as administrative costs are analyzed on a monthly basis. The payout phase is modelled using actuarial functions applying the mortality tables of Slovakia.
Food Consumption and Availability in Czechia in the Years 1993–2019
Authors: Mácová Marcela
Published: December 2021

The article deals with comparison of consumption of food and beverages in the Czech Republic in the years 1993 and 2019 as well as of two main sources of food and food materials, their domestic production and cross border movements.
The Causal Relation Between Revenue And Expenditure of Bangladesh
Authors: Jewel Jafrul Shahriar
Published: December 2021

Bangladesh is a developing country that has been experiencing budget deficits since its independence in 1971. It means the government spending has been exceeding the government revenue. This phenomenon calls for a study of government spending or expenditure and government revenue. This study tries to establish a causal relation between expenditure and revenue of governments of Bangladesh. To accomplish this, this study uses the Vector Autoregressive (VAR) model and the Granger Causality model on the data for the financial year from 1993-1994 to 2017-2018. The study reveals that in the context of Bangladesh, total revenue affects total expenditure, whereas total expenditure does not affect total revenue.
TERAPI NUTRISI PADA PASIEN CARDIAC CACHEXIA ET CAUSA CHRONIC HEART FAILURE NYHA III DENGAN PENYULIT EDEMA PARU KARDIOGENIK AKUT
Authors: Layle Rahmiyanti  , Suryani As’ad  , Nurbaya Syam
Published: December 2021

Pendahuluan Cardiac cachexia (CC) adalah penurunan berat badan dengan/ tanpa muscle wasting pada pasien gagal jantung. Terapi nutrisi merupakan salah satu upaya untuk mencegah perburukan klinis CC.

Laporan Kasus Ny.R, 54 tahun dikonsultasikan dengan diagnosa edema paru kardiogenik akut dan congestive heart failure NYHA III. Keluhan utama berupa masukan makan berkurang sejak 1 tahun dan memberat dalam 8 hari terakhir karena sesak  napas. Ada riwayat penurunan berat badan, namun tidak diketahui besar penurunannya. Tampak lemah dan sesak napas. Antropometri: TB 154 cm, LLA 19.5 cm. Terdapat kehilangan jaringan lemak subkutan dan muscle wasting tanpa edema. Handgrip strength 5.2 kg. Food recall 24 hour 343 kkal. Status gizi buruk berdasarkan SGA. Terapi nutrisi: kalori 1600 kkal diberikan bertahap, dengan komposisi makronutrien: karbohidrat 45-50%, protein 1.5 gr/kgBBI/hari dan lemak 32-37%. Diberikan nutrient spesifik berupa EPA dan BCAA. Suplementasi mikronutrien: zink, curcuma, vitamin Bkompleks, thiamin dan ekstrak ikan gabus. Setelah Pasien dipulangkan, kami lakukan pemantauan selama 8 bulan untuk menilai asupan kalori, berat badan dan kapasitas fungsional serta kepatuhan pasien terhadap program terapi nutrisi yang diberikan. Terdapat perbaikan klinis peningkatan asupan energi, berat badan yang stabil, dan peningkatan kapasitas fungsional.

Kesimpulan Terapi nutrisi yang adekuat dan pemberian nutrient spesifik dapat mencegah perburukan CC.
Habilidades gerenciales, toma de decisiones y gestión de las instituciones educativas de la UGEL 07
Authors: Huerta Solis Hans
Published: December 2021

En el presente artículo se explora la relación que existe entre las habilidades gerenciales y la toma de decisiones en la gestión institucional de los directores de las instituciones educativas públicas de la UGEL 07. El objetivo principal de la investigación es responder sobre qué relación existe entre las habilidades gerenciales, la toma de decisiones y la gestión de las instituciones educativas públicas, teniendo como punto de partida que en los últimos años el proceso de modernización de la gestión pública exige que los servidores públicos tengan mayores competencias para afrontar distintas situaciones y puedan alcanzar las metas y objetivos de manera eficiente y eficaz. Para el estudio se aplicó una encuesta a cien trabajadores de las instituciones educativas de la UGEL 07 en la que se preguntó sobre habilidades gerenciales, toma de decisiones, gestión institucional y administrativa, a fin de analizar la correlación entre dichas variables y el nivel en el que se encuentran los directores.
La subsanación voluntaria y el reconocimiento de responsabilidad en el derecho administrativo sancionador peruano:
Authors: Jiménez Alemán José Alonzo
Published: December 2021

El presente artículo tiene por objeto advertir una inconsistencia en la aplicación del Texto Único Ordenado de la Ley de Procedimiento Administrativo General que enfrenta, de una parte, a los supuestos de subsanación voluntaria y reconocimiento de responsabilidad, como causas eximente y atenuante de responsabilidad, respectivamente; y, de otra, a los principios de razonabilidad y proporcionalidad (parámetros indispensables en el ejercicio de la potestad sancionadora de la administración). Además de las críticas a las causas eximente y atenuante de responsabilidad, se advierte que su aplicación a casos concretos en ordenamientos sectoriales contravendría el principio de razonabilidad y proporcionalidad, pues incentivaría comportamientos oportunistas, como sería beneficiarse del beneficio ilícito producto del incumplimiento. Para graficar esta situación desarrollamos el régimen del encaje bancario a cargo del Banco Central de Reserva del Perú. En este contexto, resaltamos la existencia de una antinomia jurídica de tipo irresoluble, pues estamos frente a la colisión de normas de un mismo cuerpo legal, que vaciaría los incentivos para el cumplimiento de la normativa sectorial y, por ende, podría frustrar los objetivos trazados por el Banco Central con el uso de esta herramienta de política monetaria. Para solucionar esta situación, se desarrollan métodos interpretativos trabajados por la doctrina y el propio Tribunal Constitucional; el más apropiado para resolver este caso en concreto es la interpretación abrogante. Para dicho efecto, se utiliza la asignación de jerarquías axiológicas a las normas bajo conflicto a la luz de los principios involucrados. El resultado de este ejercicio interpretativo es la inaplicación de las causas eximente y atenuante de responsabilidad, en tanto se considera que el principio de razonabilidad y proporcionalidad desarrollados en el TUO de la LPAG ostentan una jerarquía axiológica superior. Este resultado no involucra que en otros ordenamientos sectoriales sea perfectamente aplicable la eximente o atenuante de responsabilidad.
Autonomous Mobile Robot Navigation in Structured Rough Terrain
Authors: Asar Azad , Uslu Erkan , Altuntas Nihal , Amasyali Mehmet Fatih , Yavuz Sirma
Published: December 2021

Main study areas for robotics research can be given as: mapping, localization, navigation and exploration. Given a robot’s current position, partial map of the environment and a goal position; navigation problem can be defined as optimal path planning and path following. Path planning and path following problem should be handled according to environment being static or dynamic, robot's mobility capabilities, sensors used on the robot and the roughness of the environment. In the study a four wheeled, skid-steering robot with laser range finder and depth sensor is built for Gazebo simulation environment. Also a statically structured labyrinth that consists of 15 degree continuous ramps, 15 degree discontinuous ramps, amorphous holes that robot cannot autonomously escape from if fallen into, walls and discontinuous obstacles that are below the robot laser height. 2D simultaneous localization and mapping, 3D mapping, path planning and path following with respect to the 3D map are implemented on Robot Operating System (ROS). Optimal path planning in rough terrain is accomplished by combining A* heuristic with a function of height difference of the 3D map nodes. Path following is carried out by turning-to and moving-towards actions on each sequential path node pairs. Tests performed on the labyrinth shows that obstacle avoidance, path planning and path following can be carried out successfully with the given implementation.
Aquathermolysis of high-viscosity oil terrigenic sediments in the presence of iron oxide (II, III)
Authors: Vakhin A. V. , Sitnov S. A. , Mukhamatdinov I. I.
Published: December 2021

Nowadays, it is especially important and relevant to improve the efficiency of existing methods of enhanced oil recovery, in particular, thermal methods using water steam. The use of catalysis at the stage of development of unconventional hydrocarbon fields, namely super-viscous and bituminous oils, will allow solving this problem. This work is devoted to the study of the transformation of heavy oil from the Ashalchinskoye field in the process of catalytic aquathermolysis. The oil samples were extracts from sandstone, which was subjected to thermal steam treatment in a high-pressure reactor at temperatures of 200 and 250C for 24 h. Nanosized iron (II, III) oxide in complex with a hydrogen donor was used as a catalytic composition. According to the results of SARA-analysis, it was found that at a temperature of 200C, iron oxide does not show its catalytic properties, and there is no noticeable improvement in the composition of heavy oil. The destruction of resins and asphaltenes is observed after thermocatalytic treatment at 250C. This leads to the enrichment of oil with lighter hydrocarbons, which is confirmed by GC-MS data of the saturated fraction of oil. All this provides a significant decrease in the viscosity of heavy oil compared to the non-catalytic process from 1140 cP to 37 cP The formation of coke-like substances adsorbed on sandstone as a result of thermocatalytic action at 250C was revealed by the results of TG-DSC.
Justification for application of in-situ combustion method at high-viscosity oil fields
Authors: Tokarev V. I. , Akhmet A. A. , Garifov A. K.
Published: December 2021

The article describes one of the methods of enhancing oil recovery, the experience of its application, including global, and the design of the development (using 3D reservoir simulation) with the arrangement of the pilot area, taking into account the peculiarities of the method.
SOCIAL CLAUSES AS AN INSTRUMENT SUPPORTING THE SOCIAL ECONOMY SECTOR
Authors: Hebda-Czaplicka Izabela
Published: December 2021

Based on the research results, the article presents opinions of the representatives of social economy sector and local authorities on the current use of social clauses indicated in public procurement regulations, which are a tool oriented at increase of participation of the social economy sector in the public procurement market. The research confirms low usage of social clauses mechanism. The main constraints in use of these tools by local authorities include: lack of sufficient knowledge about social benefits arising from providing social services by social economy units and fear of using a legal measure that limits competition of entities operating on the free market. The respondents underline that information about the goals of social economy and the its potential are the basis for activities aimed at increasing interest in using the social clause mechanism.
Defects Analysis and Root Cause Robustness of Product Labels of an Acaricide Product in East Africa
Authors: Ogodo Moses Ogal , Ekeocha Zita , Byrn Stephen Robert , Clase Kari L
Published: December 2021

This project aimed at investigating online damages of packaging materials generated during production because of imperfectness of production processes. These online damages may lead to upsurge in production cost and/or market returns, causing the company to experience losses and even damage its reputation. Data on online damages were collected for 20ml, 40ml and 100ml labels of an acaricide product for the period between July 2018 and June 2019 and statistically analyzed. Investigation was done on the causes of online damages, then corrective and preventive actions carried out. Analysis of online damages of labels of the three pack sizes revealed a loss of 1.01% on labels alone during the year under analysis. After implementing corrective and preventive actions, there was a reduction of online damages of labels.
QUATÉRNIOS: GENERALIZAÇÃO DOS NÚMEROS COMPLEXOS NA PERSPECTIVA DO USO DO SOFTWARE EDUCATIVO GEOGEBRA E O SOFTWARE ON-LINE LIVRE QUATERNION
Authors: Silva Alessandro Ribeiro da , Silva Renato César da , Romanini Edivaldo
Published: December 2021

This article was carried out under the Tutorial Education Program (PET Mathematical Knowledge connections), of the Mathematics Degree Course at the Federal University of Mato Grosso do Sul (UFMS) - Três Lagoas Campus (CPTL). Our objective was to present both the consolidation of Complex Numbers (1833) and the class of hyper-complex Quaternions (1843), both conceptualized by Sir William Rowan Hamilton, as well as using the Free Educational Software GeoGebra and the Free Online Software QUATERNION, as alternative pedagogical resources facilitating the development of the teaching and learning process of abstract mathematical content.
O Tio Sam de olho no Brasil: análise da visão dos think tanks estadunidenses sobre a política externa brasileira nos BRICS (2009-2016)
Authors: Wietchikoski Luciana
Published: December 2021

O presente artigo analisa as representações dos think tanks estadunidenses a respeito da atuação internacional do Brasil através do BRICS durante as presidências de Lula da Silva e Dilma Rousseff. Entre os anos de 2003 a 2016 o Brasil desenvolveu uma política externa voltada a elevar sua relevância internacional. Como uma das estratégias centrais utilizadas para ampliar sua participação nas principais decisões de cunho multilateral bem como firmar-se como liderança do Sul Global, o país se envolveu na formação, com outros atores intermediários e reemergentes, do BRICS. Marcando uma grande inovação das relações internacionais no início do século XXI, a coalizão passou a ser uma referência à identificação das intenções e do potencial de influência desses novos atores no sistema internacional. Nesse contexto, buscamos reconhecer quais foram as opções estratégicas em relação a atuação do Brasil através do BRICS circulantes no ambiente político dos EUA, particularmente junto aos think tanks. A partir da análise de conteúdo verificamos que, para a grande maioria dos articulistas, o Brasil foi definido com um ator pouco comprometido com a manutenção do ordenamento internacional. Segundo essa visão, o Brasil questionava a posição dos EUA e atuava ao lado de países violadores dos direitos humanos e da democracia.
Subnational activism and conflicts within Jair Bolsonaro’s government: an analysis of the Brazilian states’ actions in the Sustainable Development Goals (SDG) agenda during 2019
Authors: Prado Débora Figueiredo Mendonça , Junqueira Cairo Gabriel Borges , Mauad Ana Carolina Evangelista
Published: December 2021

The article analyzes the international engagement of Brazilian subnational governments in the Sustainable Development Goals (SDGs) agenda during the first year of the Bolsonaro’s government with an emphasis on the role of states in supporting the environmental axis. We argue that subnational governments have been strongly active in defending this agenda, unlike the federal government, generating foreign policy tensions. Therefore, the research analyzes the performance of these actors in the scope of the Northeast and the Legal Amazon Consortia.
MIDET: A Method for Indexing Traffic Events
Authors: Duarte Mariana M. G. , Pontarolo Marcos V. , Schroeder Rebeca , Hara Carmem S.
Published: December 2021

Traffic events announcements such as jams and road closures are continuously reported by mobile and Web applications. This collection of spatio-temporal data is an important source of information for urban planning, and can be used to orchestrate a number of actions to mprove the mobility, such as traffic control, traffic lights synchronization and preventive maintenance. Such analysis usually involves computation of spatial relationships among data, and may involve location of landmarks, roads and different types of events. In this paper, we propose a Method for Indexing Traffic Events (MIDET) for querying spatio-temporal data, whose location can be represented as a point or collection of points. MIDET is based on a fixed-grid space-oriented partitioning. In order to tackle the data skew, each grid cell is associated with a set of blocks containing event records. Moreover, a bitmap index is used for filtering out blocks without retrieving the actual data. MIDET provides the following benefits: adoption of a simple bulk loading process to manage dynamic insertion streams, and in-memory spatial joins. We conducted an experimental study using real data obtained from Waze. MIDET’s query performance was compared with Postgis, which adopts an R-tree index structure.
Proximity Graphs for Similarity Searches: Experimental Survey and the New Connected-Partition Approach HGraph
Authors: Shimomura Larissa C. , Kaster Daniel S.
Published: December 2021

Similarity searching is a widely used approach to retrieve complex data (images, videos, time series, etc.). Similarity searches aim at retrieving similar data according to the intrinsic characteristics of the data. Recently, graph-based methods have emerged as a very efficient alternative for similarity retrieval, with reports indicating they have outperformed methods of other categories in several situations. This work presents two main contributions to graph-based methods for similarity searches. The first contribution is a survey on the main graph types currently employed for similarity searches and an experimental evaluation of the most representative graphs in a common platform for exact and approximate search algorithms. The second contribution is a new graph-based method called HGraph, which is a connected-partition approach to build a proximity graph and answer similarity searches. Both of our contributions and results were published and received awards in international conferences.
A Thorough Exploitation of Distance-Based Meta-Features for Automated Text Classification
Authors: Canuto Sergio , Gonçalves Marcos André , Rosa Thierson Couto
Published: December 2021

The definition of a set of informative features capable of representing and discriminating documents is paramount for the task of automatically classifying documents. In this doctoral dissertation, we present the most comprehensive study so far on the role of meta-features (high-level features built from lower-level ones) as an alternative for representing documents. We start by proposing new sets of (meta-)features that exploit distance measures in the original (bag-of-words) feature space to summarize potentially complex relationships between documents. We then (i) analyze the discriminative power of such meta-features with novel multi-objective feature selection strategies; (ii) provide new GPU implementations to reduce computational time; (iii) enrich distance relationships with labeled or context-specific information; (iv) adapt the proposed meta-features for tasks as hard as sentiment analysis. Our experimental results show that our meta-features can achieve remarkable classification results by distance exploitation, being the state-of-the-art in many situations and scenarios.
Leitor digital autônomo de baixo custo M-Reader: Tecnologia Assistiva como possibilidade de inclusão sociodigital dos sujeitos com deficiência visual
Authors: Rezende André L. A. , Jesus Cayo P. S. de , Nogueira Amanda E. S. , Pereira Isis B. S. , S. Neto Aderaldo C. da , Costa Gustavo J. da S. , Souza Márcio V. S.
Published: December 2021

Considerando os avanços das sociedades, em particular pelo uso das Tecnologia Digitais da Informação e Comunicação (TDIC) e a grande parcela de excluídos digitais, especialmente dos deficientes visuais, este artigo aborda o projeto que pretende desenvolver uma proposta de um leitor digital autônomo para pessoas com deficiência visual que permita a leitura de conteúdos disponibilizados em formato analógico ou impresso: M-Reader. A metodologia fundamenta-se na Metodologia Colaborativa Aplicada e nos métodos PDCA e PDSII. Ainda em fase de desenvolvimento, a pesquisa tem como resultados preliminares a produção do hardware e software, com base nas proposições dos participantes e aguarda as fases finais para conclusão.
Cordel Aumentado: Um aplicativo para utilização da realidade aumentada aplicada na literatura de cordel
Authors: Santos Ezequiel França dos
Published: December 2021

O Cordel Aumentado é um aplicativo de realidade aumentada que tem como objetivo ser uma ferramenta auxiliar de ensino de literatura, no contexto da literatura de cordel. O aplicativo busca estimular os alunos a explorarem os elementos da literatura de cordel, possibitando-os criarem varais de cordeis digitais e interativos, em um ambiente de mundo compartilhado, além da possibilidade de interação através de marcadores, criados através das imagens de xilogravuras características da literatura de cordel, possibilitando uma nova forma de interação da literatura tradicional de cordel e modernas técnicas de realidade aumentada.
Tutoria: uma Plataforma para Apoiar Boas Práticas de Feedback no Processo de Ensino e Aprendizagem
Authors: Falcão Taciana Pontual , Arêdes Verenna , Souza Samuel , Luisi Victória , Fiorentino Neto Giuseppe , Neto Rodrigues , Morais Dyego , Miranda Pericles B. C. , Mello Rafael Ferreira
Published: December 2021

O feedback dado por professores a estudantes sobre atividades avaliativas é fundamental para a construção do conhecimento dos estudantes e compreensão acerca de sua trajetória de aprendizagem. Entretanto, frequentemente professores não conseguem fornecer feedback de qualidade e em tempo hábil, devido a sobrecarga de trabalho e falta de tempo, gerando frustração para todos os envolvidos. Tutoria é uma plataforma com o objetivo de apoiar professores na correção de atividades avaliativas de maneira mais rápida, mas mantendo a qualidade e a personalização. Para isso, Tutoria foi desenvolvida priorizando a usabilidade, recursos de correção de questões discursivas, e técnicas de inteligência artificial.
Software Educativo ContaKg Bilíngue
Authors: Oliveira Amanda Maria Domingos de , Cabral Alcione Costa de Aquino Pinto , Barreto Gabriel Vieira , Nascimento Jason Willyan Castro do , Rodrigues Samir Pessoa , Viana Flávia Roldan
Published: December 2021

O software ContaKg Bilíngue é um recurso educativo desenvolvido para auxiliar a aprendizagem matemática nos campos da probabilidade e estatística por estudantes surdos e ouvintes. O recurso tem todo o seu conteúdo informativo apresentado em duas línguas: Português e Libras. O desenvolvimento do software se deu através do trabalho colaborativo de uma equipe interdisciplinar composta por estudantes dos níveis de graduação e mestrado nas áreas de Educação e Tecnologia da Informação. Este trabalho apresenta o processo de desenvolvimento e detalha o funcionamento do recurso.
PC Pratique+: uma ferramenta web para auxiliar no desenvolvimento do Pensamento Computacional
Authors: Martins Juliana Fernandes , Mourão Andreza Bastos
Published: December 2021

Este artigo apresenta uma ferramenta web, voltada para estudantes a partir do Ensino Fundamental I, com intuito de auxiliá-los na compreensão dos quatro pilares do Pensamento Computacional (PC), bem como proporcionar que os mesmos ponham em prática o conhecimento adquirido, através de questões provenientes da Olimpíada Brasileira de Informática (OBI) e do Bebras Challenge. Espera-se que a ferramenta contribua para o desenvolvimento de habilidades provenientes do Pensamento Computacional, como por exemplo sistematizar, representar, analisar e resolver problemas.
Estudo sobre um curso de formação em Pensamento Computacional para professores do ensino básico das áreas de Matemática e Informática
Authors: Barros Taiser T. T. , Reategui Eliseo Berni , Teixeira Adriano C.
Published: December 2021

O Pensamento Computacional é definido como um tipo de raciocínio analítico empregado na resolução de problemas, com o debate sobre sua introdução em atividades curriculares tendo se intensificado no Brasil com a inclusão do tema na Base Nacional Comum Curricular. Ainda não há, no país, indicações específicas de como pode ser efetivamente integrado ao currículo escolar. Este trabalho teve como objetivo compreender como professores de Matemática e Informática, se apropriaram dos conhecimentos de um curso de formação em Pensamento Computacional. Foi realizado um estudo de caso com 49 professores, com análise de suas produções e falas coletadas em entrevistas. O trabalho interdisciplinar entre os professores proveu os melhores resultados, sendo este resultado considerado como uma contribuição significativa desta pesquisa.
Effect of Simulation-based Medical Education in Small Groups on Improving the Quality of Nursing Care in Patients Under Electroconvulsive Therapy
Authors: Shakernejad Fatemeh , Zarea Kourosh , Rokhafrooz Darioush , Maraghei Elham
Published: December 2021

Background: Considering the high risk and vital nature of electroconvulsive therapy (ECT) process, as well as the subsequent intensive, essential, and life-saving cares, it is necessary to promote the skills of nurses providing this kind of care. Objectives: This study aimed to determine the effect of simulation on developing the quality of care in nurses working in the ECT department. Methods: This experimental study compared two groups before and after the intervention. Fifty nurses who met the inclusion criteria were randomly allocated into two groups of intervention and control. Low-tech (static) task trainer was used for simulation-based medical education (SBME) in the intervention group. Data were collected using a checklist to investigate the quality of nursing care before and after the intervention. Results: The mean scores obtained from initial preparation subscales, preparation of tools and equipment, measures during ECT, post-ECT measures, and checking patient’s status in pre-test and post-test in the intervention group were significantly different. This suggests that simulation intervention in small groups is effective in improving the quality of nursing care in ECT (P < 0.05). Conclusions: Our results showed that promoting ECT nursing care knowledge among the nurses in small groups by simulation method is an effective intervention.
Sedative and Analgesic Effects of Intravenous Midazolam and Ketamine Combination in Bone Marrow Aspiration and Biopsy of Childhood Cancer
Authors: Tabatabaei Seyed Mohammad Nasiraldin , Miri-Aliabad Ghasem , Borjian Boroojeny Shahram , Arab Ali
Published: December 2021

Background: Various drugs, including ketamine and midazolam, are used for sedation in children. Objectives: This study aimed to evaluate the effectiveness of intravenous midazolam and ketamine combination in bone marrow aspiration and biopsy in children with cancer. Methods: This descriptive cross-sectional study was conducted on 100 children aged six months to 17 years candidates for bone marrow aspiration or biopsy. Sampling was easy, accessible, and sequential. Children were injected with 0.05 mg/kg midazolam and 1 mg/kg ketamine for sedation and analgesia. Then, sedation rate, restlessness, nausea, vomiting, laryngospasm, and decreased oxygen saturation were assessed. Data were analyzed using SPSS version 18 software. Results: The mean age of children was 6.8 ± 4.3 years. The mean degree of sedation based on the modified Ramsey score was 5.2 ± 0.74. Nausea and vomiting were observed in nine (9%) children. Six (6%) children had arterial saturation of less than 90%. Twelve (12%) children showed restlessness when waking up. There were no cases of laryngeal spasms. Conclusions: The present study showed that the intravenous midazolam and ketamine combination provides suitable sedation and analgesia to children, with low and negligible side effects.