bluuebunny/crossref_metadata_2025 huggingface dataset:
Stress-deformation state of compound reinforced concrete bars with high-strength reinforcement prone to long-term compression
Authors: Zarakovskaya Kristina I. , Zakharov Vladimir F.
Published: October 2019

Introduction. Considering that reinforced concrete is the most common material in construction and reconstruction of buildings and facilities, research of work of high-strength reinforcement in reinforced concrete elements, including compressed columns, are still relevant at present. Analysis of compound-section columns with high-strength longitudinal reinforcement is of particular interest since the method of sectional build-up is widespread enough in the reconstruction of buildings and facilities. However, no information on the work of this kind of reinforced concrete structures under long-term compression was found either in foreign or domestic literature; this fact provides relevance and academic novelty of the study.

Materials and methods. The article provides the research of parameters of the strain-stress state of compound reinforced concrete bars with high-tensile reinforcement under long time compression employing the modern methods of mathematical simulation.

Results. The developed calculation method allows determining additional parameters of the strain-stress state of the compressed compound-section reinforced concrete bars considering the concrete creep deformations forming in time of the long-term compression. When comparing the analytical study results with authors’ experimental data and previous results of other researchers, an adequate degree of reliability of the developed calculation method was confirmed.

Conclusions. When applying the developed calculation method of stress-deformation state parameters for the compressed compound-section columns with high-strength longitudinal reinforcement, the study discovered that significant effort redistribution from concrete to high-strength reinforcement occurs under long-term compression. This fact was confirmed with the results of an experimental investigation on the resistance of the compound reinforced concrete bars with high-tensile reinforcement to the longtime compression.
Preparation of low-toxicity cast foamed phenolic plastics
Authors: Nguyen Viet Cong  , Sosnovskiy Nikolay Y. , Yanchuk Valentin P. , Smirnova Anastasia M. , Grigorieva Larisa S.
Published: October 2019

Introduction. Gas-filled polymers are highly efficient building thermal insulation materials, and therefore, researching to develop technologies to create them is a promising task. Phenol-formaldehyde foamed plastic can be a high-potential material with many significant advantages. However, the high toxicity of the phenol and formaldehyde compounds it releases is a significant deterrent to its usage. Therefore, the purpose of this study was to search for ways to reduce the toxicity of foamed plastic. The research considered the method of using ferric chloride as a complexing agent that binds phenol, with simultaneous use of sodium hexafluorosilicate to reduce material consumption.

Materials and methods. The studies were carried out on phenol-formaldehyde resin FRV-1A (TU 6-05-1104-78 “Resin, phenol-formaldehyde, foaming, brand FRV-1A”) and curing agent VAG-3 (TU 6-55-1116-88 “Product VAG-3”). The number of free phenol monomers was determined through gas chromatography method following GOST 11235-2017 “Phenoloformaldehyde resins. Methods for determination of free phenol”. The tests were carried out using a Tsvet-4 chromatograph. Tests on determining the foaming rate were carried out according to TU 6-05-1104-78 “Resin, phenol-formaldehyde, foaming, brand FRV-1A”. The density of the samples was measured basing on the mass-to-volume ratio of the samples. Strength was determined using samples of size 50 × 50 × 50 mm mm at 10 % compression on a test press.

Results. The conducted studies showed a decrease in the content of free phenol monomers in samples modified with ferric chloride. The use of sodium hexafluorosilicate allows significantly reducing the density of the finished material and, consequently, reducing the toxicity of foamed phenolic plastic per material mass unit.

Conclusions. According to the obtained results, the most effective for detoxifying a cast foamed phenolic plastic is the use of ferric chloride in an amount of 2 % of the FRV-1A oligomer mass with the addition of 0.5 % of the sodium hexafluorosilicate mass. The use of this method for modifying phenol-formaldehyde resin foam in the future may make it possible to obtain a much safer material and expand its areas of application.
Estimation of the condition and approaches to the rehabilitation of the geological environment disordered as a result of construction and anthropogenic activities
Authors: Chertes Konstantin L. , Shterenberg Alexander M. , Petrenko Elena N.
Published: October 2019

Introduction. The paper considers the issue of estimation of disordered areas as a result of construction and anthropogenic activities and suggests strategies for solving this problem by the example of the Samara region. Materials and methods. The article applies the generally accepted methods and research conducted by employees of Samara State Technical University. The sources of initial data are reports of state authorities. The subjects of the study are engineering-geological environmental elements, industrial facilities, polluting components and surface and Groundwater bodies. Results. The paper proposes a ranking-system for estimation of disorder areas and classification by areas of economic activity. The article provides the classification of the impact of technological losses of enterprises, the activity of which leads to the disruption of the geological environment. A resource and ecological approach for technogenic deposits of various substances and a strategy for their use and subsequent environmental restoration are proposed. The research presents the results of technogenic deposit 3D simulation as well as approaches to their interpretation. Conclusions. The developed approach and methodological basis for the analysis of the geological system, including the technogenic lens allow evaluating, analyzing, and predicting the migration of human-made lenses formed as a result of construction and economic activity. A resource-based and ecological approach was used for the simultaneous collection of pollutant fluids and the rehabilitation of the geological environment. The article recommends to use 3D digital simulation methods to increase the efficiency of research and predict the number of substances in the depths. The methods apply to human-made deposits, subject to the determination of the ambiance filtration characteristics by water and fluid. It is proposed to use biodegradable surfactants as a method of geological environment rehabilitation. This choice is stipulated by the fact that surfactants allow “washing” the rocks without increasing the burden on the environment. An alternative method is proposed for predicting fluid migration due to the description of the geosystem as a system of forced oscillations. The method allows predicting the periods of the most efficient oil production and designated engineering protection methods.
Generation of artificial transverse circulation in an open channel flow by submerged vanes
Authors: Klovsky Alexey V. , Kozlov Dmitry V.
Published: October 2019

Abstract Introduction. In this article, we describe a method for sediment control in damless water intake hydraulic units consisting in artificial transverse circulation (ATC) generated by redistributing specific water flow rates in the cross-section of the supply channel. One of the simplest and most effective anti-sediment elements working according to this principle is the submerged vane (SV). The intensity of the ATC formed in the flow depends on the flow regime and the planned-geometric characteristics of the vanes. Available recommendations on the selection of the rational characteristics of SV under the conditions of river damless water intake appear to be contradictory, thus requiring clarification. This study is aimed at examining the interaction between SV and a model flow without water trapping under various planned-geometric characteristics of the vane and experimental hydraulic regimes of its work using a physical model of the errosion-resistant channel. In addition, we set out to assess the effect of essential parameters on the intensity of the ATC generated in the flow. Materials and methods. This research was based on physical modelling hydraulic studies and theoretical calculations. Five hydraulic modes of vane operation with different planned-geometric characteristics were studied using a physical model of the erosion-resistant channel. Multiple regression analysis of the obtained experimental data was carried out. Results. The results of laboratory hydraulic studies on the SV operating conditions are presented. Experimental dependencies characterising the intensity of the ATC generated in the flow are plotted. A multiple regression equation is derived for the amount of the data obtained. Conclusions. It is established that the relative height of the vane and its angle to the side of the flume (coastline) has a significant effect on the intensity of the generated ATC. It is experimentally confirmed for the first time that SV shows little efficiency in high water horizons in terms of in-flow ATC generation.
Improving the efficiency of operational measures on reducing the sediment capture in the irrigation system water intake
Authors: Naumova Tatyana V. , Kusher Anatoliy M. , Рikalova Irina F.
Published: October 2019

Introduction. The article considers operational measures of channel process regulation in the headwater of low-pressure front water intake located on rivers with abundant sediment loads. In addition to deep hydraulic flushing, the study proposes the method of task-oriented handling of the watergate screens. It allows reducing the amount of irrigation system channel siltation and significantly reducing the expenses for mechanical cleaning. An analysis of the problems of practical implementation of hydraulic methods to reduce the sediment capture in water intakes and the necessity of moving to the advanced technological level of irrigation system management is given. The international experience of irrigation system management modernization based on the principle of integration and activation of interested parties in the decision-making process is considered.

Materials and methods. The studies of hydraulic methods of impact on channel processes during the water intake operation were carried out on physical eroded models (large-scale one and fragmented one). When conducting field research, the article analyzed the economic situations in addition to the hydraulic studies.

Results. The research has developed a schematic diagram for the creation of artificial circulation zones, Based on the results of the research on a large-scale field eroded model of the frontal water intake. This makes it possible to redirect a part of the sediment flow from the water intake to the spillway dam open gates and reduce the channel siltation intensity. The dependences were obtained for the amount of sediment captured in the water intake on the ratio of water flow taken into the main channel and discharged through the bottom flushing galleries, which allow interactive schedule adjustment of water supply to agricultural producers depending on hydrological and climatic conditions.

Conclusions. The hydraulic methods usage scale and their efficiency depend on applying modern analytical methods and digital technologies in the development of operational patterns as well as on the improvement of the regulatory framework and the organizational and economic mechanism for the irrigation system management.
Directions for the forecast analysis of the life cycle of real estate development projects
Authors: Gusakova Elena A.
Published: October 2019

Introduction. Analytical studies show that monopolization, disparity trends, oversupply, and limited effectual demand become the long-term reality of the real estate market. Such a state of the market stimulates a change of ideas about a successful development project, puts in several relevant and in-demand research of new approaches and concepts of the life cycle of real estate development projects. Materials and methods. The article studies the best Russian and international practices of strategic planning of development projects using the methods of analysis and synthesis of accumulated representative experience. Results. We identified and systematized the main, topical and most popular areas of forecast analysis, which determine the specifics and strategy of development projects. These include studies of the long-term development trend of the region, analysis of the most likely scenarios for the full life cycle of the project and its harmonization with the development trend of the territory, involvement of the interests and needs of the territorial community in the project, analysis of the project’s suitability to the most likely development scenarios, study of the possibilities of consolidating the most significant positive effects life cycle and multiplicative effects of the project. Conclusions. The considered areas of strategic forecast analysis make it possible to withstand the strategy of a real estate development project at all stages of construction and, as a result, manage its life cycle from the project idea to the completion of the project. Prospects and further research include the study of methods of project life cycle management as an element of the life support environment, the subject interpretation of methods and the solution of problems of informatization of models and methods of planning a project strategy.
Evaluation of physical deterioration of roofs of apartment buildings taking into account technological features of repair
Authors: Semenov Aleksandr S. , Zakharova Tatiana V.
Published: October 2019

ANNOTATION

Introduction. Capital repairs is aimed at the elimination of physical wear and tear, the accuracy of which determines the need for and the order of execution of works. Methods for determining physical deterioration in the volume of scientific publications are currently relevant. Most of the overhaul falls on the roof structure.

Materials and methods. The project of building of the model series 1-447 was used as the materials. The method of system analysis was used to consider the roof structure as a complex system and the software package “GRAND-Estimate” to determine the cost.

Results. The analysis of the existing methods of assessing the physical deterioration of roofs of apartment buildings with the identification of its shortcomings. The roof structure is considered as a complex system consisting of a set of interrelated elements. Signs of physical wear for roof elements are grouped. Repair works for elimination of the damages which have appeared in the course of physical wear are offered. The calculated specific gravity of the roof elements, given the technological features of the repair. A diagram of the ratio of unit costs for new construction and repair of roof elements. A new method of determining the physical deterioration of roofs, which allows more accurately determine the need for and the order of major repairs.

Conclusions. Was proved that the use of this technique will reflect more reliably the state of the object under study. It is offered its further application to other elements of apartment houses of various standard series.
Effect of capital inflows on financial development in Ghana
Authors: Agyapong Daniel , Asiamah Michael , Crabbe Joop Lloyd
Published: October 2019

The study examines the effect of capital inflows on financial development in Ghana. The study employs the Johansen and Juselius multivariate cointegration approach in analysing the interactions between the variables using annual data spanning 1970 to 2014. The results show foreign direct investment (FDI), external debt, and remittance inflows have significant negative impact on financial development in the long run. Furthermore, there was significant negative relationships between external debt, remittance inflows, and financial development in the short run. However, the relationship between FDI and financial development in the short run was not significant. The study was only limited to Ghana. However, the study will help countries particularly developing countries in analysing inflows of capital and their effect on the development of financial sector for policy purposes. Furthermore, this study provides avenues for policy makers to properly formulate policies containing capital inflows for effective financial sector development. Also, the study will help policy makers in terms of how issues of capital flight must be addressed and how to take pragmatic steps to channel remittances inflows to productive sectors of the economy.
Human capital investment: an analysis of the return of higher education
Authors: Hadia Dina , Bachtiar Nasri , Elfindri Elfindri
Published: October 2019

This study is aimed to analyze particular problems related to economic return for West Sumateran workers who graduated higher education by using human capital investment concepts. The dataset is sourced from National Labor Force Survey for West Sumatera 2017 and contains 1798 records of those aging at least 15 years, graduating from academy, university and postgraduate schools and distributed in all main industries. The return to higher education is estimated using Mincerian framework by considering modulatory effects of college major graduated. Other worker characteristics including training and experience are used to measure earning differentials among worker. The result of this study shows that the return to higher education is significantly positive and amplified if workers graduated from certain college majors. It is also found that participating in job training and having working experience prior to current job significantly increase highly educated workers earning in West Sumatera.
Human capital of school-age population in West Sumatera: measurement and determinant
Authors: Firlan Firlan , Taifur Werry Darta , Indrawari Indrawari
Published: October 2019

Information on human capital, especially for school- age population is still limited. Most of Indicators of human capital only consider the dimensions of education, while human capital is formed by various dimensions not only education. Recent human capital measurement is displayed in macro level so that difficult to analys in micro level. Based on recent condition of human capital information, this study aims to measure the human capital of the school-age population of 7-18 years old using the fuzzy set approach by considering several dimensions of human capital investment and analysis the determinant. The data source is from West Sumatera Socio-Economic Survey that held by National Bureau of Statistic in March 2017. Measurement human capital of 9,950 samples of school age population shows that urban areas have higher human capital than the rural areas. Internal factors, household and spouse characteristics such as income, parent education and occupation have impact in their children human capital. External factors such as subsidies and rural-urban development inequality also have impact and tend to be larger than internal factor. The strategy of increasing human capital under conditions of limited resources can be achieved by increasing the index of indicators which have greatest weight and also reducing development inequality between urban and rural areas. The other policy is to realize growth economic that have positive impact to entire society. In terms of methodology, this approach can be adapted to regional conditions, the development of theory and related research. Adjustments can be made at the stage of selecting investment indicators, data types and weight of indicator
Does political connectedness determine stock returns in Indonesia?
Authors: Astuti Endang Dwi , Nainggolan Yunieta Anny
Published: October 2019

This study aims to investigate the influences of political connection on stock returns in Indonesia. We develop a comprehensive database of firm-level political connectedness among Indonesian firms from 2010 to 2017. Our sample is non-financial Indonesian listed firms that are selected in the Kompas 100 index for 16 consecutive periods, with a total of 448 firm-year observations. This study employs panel data regressions to estimate this relationship, then mitigate possible endogeneity issues using two-stage least square with fixed-effects. The finding of this study shows that political connectedness is associated with lower stock returns, more prominently in agriculture and consumer goods industries. Moreover, state-owned enterprises are more likely to earn lower stock returns. In summary, our result suggests that investing in politically connected firms could be a risky investment. The finding holds using alternative estimation methods
Determining the buyer-supplier relationships in international market: evidence of Indonesian products
Authors: Febrianny Ervyna Rizki , Purwanegara Mustika Sufiati
Published: October 2019

This paper examines how trust and commitment impact repurchase intention and relationship performance in international market from overseas buyers to Indonesian suppliers. To achieve this objective, data were collected through a survey using a structured questionnaire to overseas buyers who have been engaging with Indonesian suppliers. A total respondent of 84 were collected. A confirmatory factor analysis was measured in this study to test the reliability and validity of the measurement model. The Partial Least Square technique also was used to test the conceptual framework of this study.  The result shows that trust is significantly influenced commitment in the International buyer-supplier relationship. Commitment also significantly influenced repurchase intention and relationship performance of overseas buyers in buying Indonesian products.
Gotong royong (cooperation) transformation of rural communities in Jambi Province, Indonesia
Authors: Rosyani Rosyani , Muchlis Fuad , Napitupulu Dompak , Faust Heiko
Published: October 2019

One nowadays un denied phenomena is that society changed. Jambi Province rural community has also changed toward modernization. The main goal of this research is to analyze factors effect gotong royong (cooperation) transformation in Jambi Province rural communities based on its remoteness from urban area. The research analysis used in this research is the Delphi method. Research found that there has been a change in the value of gotong royong in Jambi Province. It was also found that there are differences in changes in rural locations that are close to city and that are far from city. Some factors effecting the transformation are information technology, household income and accessibility while some factors that keeps gotong royong alive are family, harmony and help. The strategy to keep gotong royong value remain solid in Jambi Province’s villages should be to wisely accept global technology, income increases and better accessibility while still maintain the social capital strength.
Competitiveness of Indonesian banking industry based on commercial bank business group: Panzar Rosse Model
Authors: Octrina Fajra , Setiawati Rike
Published: October 2019

The present research was aimed to investigating the competitiveness in Indonesian banking sector during the period of 2005 to 2016, to set the limit of the scope of the study a total sample is 84 banks. This research was conducted by grouping banks based on ownership and based on BUKU (General Bank based on Business Activities). The study also aimed to analyze the banking competitiveness based on classification of banks and groups of capital ownership. The study was conducted by evaluating the value of H-statistic for the research model comprising of three input variables, namely funds, labors and capital. The results of the research show that the market of banking industry in Indonesia is classified as monopolistic competition. The limitation of this study is that this study only looks at the competition variable, and has not seen its relationship with other variables. In subsequent studies, it is expected to conduct research related to competition and relate it to other variables, such as market share or level of market concentration.
Comparison of executive compensation practices at Nordic and US markets: a mini-review article based on empirical evidence
Authors: Rahman Ummeh Habiba Faria Benteh
Published: October 2019

This paper examines the compensation package of the CEO of both the Nordic and US markets and their roles in the organization. The paper contains the comparison between the compensation package of Nordic and US CEOs along with the harmony of the determinants. The work pattern and compensation are different in these two markets, certainly. It has been a big influence in the organization or working places to provide the most desired efforts on the particular or assigned responsibilities. This study is based on a systematic review of literatures, empirical evidences and surveys extracted from 23 articles of the previous studies on the compensation packages of CEO of both Nordic and US markets. The paper will be discussing about the chief executive body in the organization, the compensation design along with their compensation package system, discussing about the theories and determinants’ differences of their compensation practices and how this package is designed in both the Nordic and US markets. The difference between these two markets will be elaborately discussed and following by the author’s own discussion. The paper will end by providing a valid conclusion about the whole study.
Application of Altman Bankruptcy prediction model in Ghana
Authors: Musah Alhassan , Agyirakwah Josephine Agyimaa
Published: October 2019

The study examined the applicability of the Altman Z-score model in predicting bankrupt companies or financially distressed companies on the Ghana Stock Exchange. A sample 10 listed firms were selected and one other company to be used for validation purposes. The validation process involved data for 2016 and 2017 for Aluworks which represented a distressed company and GOIL Ghana Limited which represented non-distressed company. The final analysis was based on a random sample of 10 listed firms using their 2017 financial statement. The results of the initial prediction showed 50 percent of the companies were correctly predicted whiles the others were misclassified. Additional analyses showed that the size of the company influence the probability of bankruptcy whiles the nature of the business does not. The conclusion drawn shows that the Altman Z-score cannot accurately predict financially distressed firms in Ghana but can still be useful in giving signals.
Financial Reporting Comparability and Accounting-Based Relative Performance Evaluation in the Design of CEO Cash Compensation Contracts
Authors: Nam Jonathan
Published: October 2019

This study examines how cross-firm differences in financial reporting practices affect how peer-firm accounting information is used to evaluate CEO performance. I propose that efficient relative evaluation using accounting performance requires peer firms to have comparable financial reporting systems, allowing boards to reduce the information processing costs associated with differences in firms' financial reporting practices. Supporting this view, when peer selection takes financial reporting comparability into account, I find evidence that the earnings of peer firms with high financial reporting comparability serve as a performance benchmark for determining CEOs' cash compensation. My paper empirically corroborates the substantial anecdotal evidence of the use of peer firms' accounting performance as a significant element in boards' evaluation of CEO performance.

JEL Classifications: D8; G3; J33; M41.
Does Litigation Deter or Encourage Real Earnings Management?
Authors: Huang Sterling , Roychowdhury Sugata , Sletten Ewa
Published: October 2019

In this paper, we rely on an exogenous shock to examine the impact of litigation risk on real earnings management (REM). We conduct difference-in-differences tests centered on an unanticipated court ruling that reduced litigation risk for firms headquartered in the Ninth Circuit. REM increases significantly following the ruling for Ninth Circuit firms relative to other firms, consistent with litigation risk deterring REM. Additional analyses reveal that REM rises more following the ruling when firms issue more optimistic disclosures. The evidence is consistent with litigation deterring REM by constraining managers' ability to issue optimistic and misleading disclosures that can conceal the myopic and opportunistic motives underlying REM. We further document that an increase in REM in response to a decline in litigation risk is more pronounced when managers have higher incentives to manipulate earnings and governance mechanisms are weaker.
The Effect of Office Changes within Audit Firms on Clients' Audit Quality and Audit Fees
Authors: Hollingsworth Carl W. , Neal Terry L. , Reid Colin D.
Published: October 2019

While prior research has examined audit firm and audit partner rotation, we have little evidence on the impact of within-firm engagement team disruptions on the audit. To examine these disruptions, we identify a unique sample of companies where the audit firm issuing office changed but the audit firm did not change and investigate the effect of these changes on the audit. Our results indicate that companies that have a change in their audit firm's issuing office exhibit a decrease in audit quality and an increase in audit fees. In additional analysis, we partition office changes into two groups—client driven changes and audit firm driven changes. This analysis reveals that client driven changes are more likely to result in a higher audit fee while audit quality is unchanged. Conversely, audit firm driven changes do not result in a higher audit fee but do experience a decrease in audit quality.
Are External Auditors Concerned about Cyber Incidents? Evidence from Audit Fees
Authors: Li He , No Won Gyun , Boritz J. Efrim
Published: October 2019

While the importance of addressing cybersecurity is widely acknowledged, there is no explicit requirement by regulators or standard setters for auditors to do so. This paper investigates (1) whether external auditors respond to cyber incidents by charging higher audit fees, (2) whether they anticipate and price material cybersecurity risk before cyber incidents occur, and (3) whether increases in audit fees for firms experiencing a cyber incident in the current period are associated with subsequent cyber incidents. We find that only cyber incidents are associated with increases in audit fees and that the association is driven by more severe incidents. We also find that increases in audit fees are smaller for firms with prior cybersecurity risk disclosure after 2011 when the SEC issued cybersecurity disclosure guidance. Finally, larger increases in audit fees for firms experiencing cyber incidents in the current period are associated with a lower likelihood of subsequent cyber incidents.
A Educação no Período Kubitschek: os Centros de Pesquisas do INEP
Authors: Cunha Marcus Vinícius da
Published: October 2019

O presente estudo procura descrever as atividades e o ideário do Centro Brasileiro de Pesquisas Educacionais e do Centro Regional de Pesquisas Educacionais de São Paulo — órgãos do Instituto Nacional de Estudos Pedagógicos (INEP) -, durante o período 1956-1961. O objetivo é estabelecer algumas relações entre a atuação dos referidos órgãos e as principais características da administração Juscelino Kubitschek, particularmente no tocante à ideologia desenvolvimentista adotada no período.

Abstract

The real work tries to describe the activities and the ideas of the Brazilian Center of Educational Researchs (Centro Brasileiro de Pesquisas Educacionais) and of the São Paulo's Local Center of Educationals Researchs (Centro Regional de Pesquisas Educacionais de São Paulo) - association groups from National Institute of Pedagogic Studies (Instituto Nacional de Estudos Pedagógicos - INEP) -, during the period 1956-1961. The aim of this article is to compare some works of these association with main characteristics of Juscelino Kubitschek administration, particulary with respect to the develop-ment Ideology wich has been gotten in that era.

Résumé

Cette étude décrit les activités et les idées du Centre National de Recherches à I'Education ( Centro Brasileiro de Pesquisas Educacionais) et du Centre Regional de Recherches à I'Education de São Paulo (Centro Regional de Pesquisas Educacionais de São Paulo) - organismes de l'Institut National d'Études Pédagogiques (Instituto Nacional de Estudos Pedagógicos — INEP), pendant là période 1956-1961. Son objectif est détablir quelques rapports ente V action de ses organismes et les principales caracteristiques de l'Administration Juscelino Kubitschek, notamment en ce qui concerne 1'idéologie du développement adoptée pendant cette période de I'Histoire Brésilienne.

Resumen

El presente estúdio se propone describir Ias actividades y el ideário del Centro Brasileho de Investigaciones Educacionales (Centro Brasileiro de Pes-quisas Educacionais) y del Centro Regional de Investigaciones Educacionales de São Paulo (Centro Regional de Pesquisas Educacionais de São Paulo) -órganos del Instituto Nacional de Estúdios Pedagógicos (Instituto Nacional de Estudos Pedagógicos — INEP), durante el período 1956-1961. El objetivo que se persigue es establecer algunas relaciones entre là actuación de los referidos órganos y Ias principales caracteerísticas de là administracion Juscelino Ku-bitschek, particularmente en Io que respecto a là ideologia desarrollista adoptado en ese período.
O Papel e a Função do Erro na Avaliação Escolar
Authors: Davis Cláudia , Esposito Yara Lúcia
Published: October 2019

Este estudo tem como objetivo discutir a questão da avaliação escolar, a partir do enfoque da teoria psicogenética de Piaget. Assim, num primeiro momento, o estudo procura mostrar os usos inadequados dessa teoria quando aplicada à prática pedagógica; num segundo momento, destacando sobretudo o seu caráter epistemológico, busca aproveitar algumas das contribuições piagetianas para a discussão dos problemas da aprendizagem, mais especificamente os que dizem respeito à questão do erro.

Abstract

This paper aims at discussing the educational evaluation issue based on Piaget's psychogenetic theory approach. Firstly, the study intends to show the inadequate employment of such theory, when applied to pedagogic praxis. Afterwards, emphasizing above ali its epistemological character, it seeks to make good use of some Piaget' s contributions in the question linked to learning problems, particularly those related to the error question.

Résumé

Cette étude a comme objectif là discussion de là question de l'evaluation scolaire, à partir de l'approche de là Théorie Psychogénetique de Piaget. Dars un premier moment, l' étude cherche de montrer les usagens inadéquats de cette théorie lorsque appliquée à là praxis pédagogique; dans un Second moment, en relevant surtout son caractère épistémologique, il cherche de profiter quelques contributions piagetiennes, pour là discussion des problèmes de l'apprentissage, mais particulièrement ceux qui s'occupent de Ia question de là faute.

Resumen

Este estúdio tiene como objetivo discutir là cuestión de la Evaluación Escolar, a partir del enfoque de là Teoria Psicogenética de Piaget. Así, en un primer momento, el estúdio busca mostrar los usos inadecuados de esa teoria cuando se aplica a là práctica pedagógica; en un segundo momento, destacando sobretodo su caracter epistemológico, busca aprovechar algunas de las contribuciones piagetianas para là discusión de los problemas de aprendizaje, especificamente los referidos a là cuestión del error.
Perception of Ethiopian Mango Farmers on the Pest Status and Current Management Practices for the Control of the White Mango Scale, Aulacaspis Tubercularis (Homoptera: Diaspididae)
Authors: Anjulo Melesse tora
Published: October 2019

White Mango Scale (WMS), Aulacaspis tubercularis Newstead (Hemiptera: Diaspididae), was occurred in Ethiopia in 2010. It was introduced from Asia (India) through infected mango seedlings. Currently the insect problems increase to different parts of Ethiopia. This survey was initiated with the objectives of gathering perception of mango growing farmers on mango WMS insect status and its management methods. Semi-structured questionnaires were administered to mango growing farmers selected at random with majority being members of the banana and mango producers. Survey result shows that white mango scale insect is present at all the studied area and all the interviewed farmers responded that their mango tree was faced with some sort of insect problem and some farmers started to manage this insect by cultural and chemical methods. From the interviewed mango growers, 57.3% were knowledge on white mango scale insect and they thought it causes high amount of yield loss. Sixty percent of the respondents use one or combination of control methods of the pest. Further systematic study is needed to implement informed management system to control this emerging mango pest.
Chemical Speciation and Mobility of Heavy Metals in Soils Around Nasara Sack and Packaging Company Akwanga, Nigeria
Authors: Yerima Emmanuel Amuntse , Hikon B.N. , Ogbodo C.V. , Ataitiya H. , Ani J.D.
Published: October 2019

This study quantified and assessed the mobility of iron, nickel, cobalt and lead in soils around a sack and packaging company using indices such as mobility factor and risk assessment code. The results evaluating the mobility factor of heavy metals in soils around the sack and packaging company reveal that all the metals determined exceed the minimum limit of 10% mobility factor and are mobile with the mobility factor being in the order of: Ni > Pb > Co > Fe in the test soil. The risk assessment of heavy metals in the area based on risk assessment code ranged from low risk to medium risk (1-30%) where the risk level of the heavy metals is in the order:  Co > Ni > Pb > Fe in the test soil.
Analyzing the Relationship of English Language Learning Anxiety and English Language Learning Strategy Use Among English Major Undergraduates in Shi Jiazhuang, China
Authors: Fei Wang
Published: October 2019

The study investigated the general state of foreign language learning anxiety and the relationship between foreign language learning anxiety and foreign language learning strategy among English major college students in Shi Jiazhuang, China. The quantitative research method was adopted in this study. The instruments were Foreign Language Class Anxiety Scale and Strategy Inventory Language Learning. The subjects were 400 English major students from Shi Jiazhuang College. The results showed that there exists a negative relationship between foreign language learning anxiety and the use of foreign language learning strategy. According to the findings of this study, it is necessary to reduce learners’ foreign language learning anxiety so as to apply more types of foreign language learning strategies efficiently, especially for those foreign language learners with high-level learning anxiety. Some suggestions were put forward for pedagogical implications, which will make Chinese learners be more successful during the process for foreign language acquisition.
Study of the Effects of Frequency on the Compression Process in Old and New Persian Dialogues in the Bybee Phonological Framework
Authors: Kashefi Khishan Razieh , Iraji Maryam
Published: October 2019

The purpose of this research is an analytical analysis of the compression process (including deletion and merging) in old cinematic films compared to new cinematic films in Persian language. The old cinematic films selected for this study include two films, "Kaiser" and "Treasure of the Qaroon," and new cinematic films that examine two films," Life+1 Day "and “Lottery.” The theoretical framework has been used in Cognitive Phonology, Bybee (1999). The method of the present study is descriptive-analytical, and data collection is in library method. All the data has been pulled out from the dialouge of films, which been examined the compression process in the old and new films separately. In this research, we first examine the Utterance and discourse of the intended films in detail. At the end of the work, the elements of the Persian language are analyzed. The results indicate that the compression process in Persian language films has been araised, and in cases where more compressions have been done, their frequency has been higher. That is, in " Life+1 Day and “Lottery’s film, there are more compression processes than "Kaiser" and Treasure of the Qaroon’s film. The fact that the two categories of nouns and verbs are part of the basic entity of a phrase, such that if these categories are frequent then they are compressed or eliminated. On the other hand, the presence of an adjective, adverb, or letter to describe the replacement of noun or verb in the conceptual connection, which is sufficient to represent them, and this will support with Bybee's view point. So the compression, deleting or merging processes in data has shown less frequently.
ON INTUITIONISTIC FUZZY IDEALS BITOPOLOGICAL SPACES
Authors: Tuaimah Mohammed
Published: October 2019

In this paper  we  introduce  the  notion  of  intuitionistic  fuzzy  ideals in intuitionistic  fuzzy  bitopological  spaces  and  we  prove  some  results  about  it .
The Complete Solution of some Kinds of Linear Third Order Partial Differential Equations with Three Independent Variables and variable coefficients
Authors: Naser Rusul Hassan , Hanoon Wafaa Hadi , Mohsin Layla Abd Al-Jaleel
Published: October 2019

In this paper we find the complete solution of some kinds of linear third order partial differential equations of variable coefficients with three independent variables which have the general form  Where A,B,â€¦,T are variable coefficients . By use the some assumptions will transform the above equation to thenonlinear second order ordinary differential equations
On the Remes Algorithm for Rational Approximations
Authors: Saad Husam L , Hassan Noori Yasir Abdul
Published: October 2019

This paper is concerned with the minimax approximation of a discrete data set by rational functions. The second algorithm of Remes is applied. A crucial stage of this algorithm is solving the nonlinear system of leveling equations. In this paper, we will give a new approach for this purpose. In this approach, no initial guesses are required. Illustrative numerical example is presented.
The global attractors and their Hausdorff and fractal dimensions estimation for the higher-order nonlinear Kirchhoff-type equation with nonlinear strongly damped terms
Authors: Wang Wei , Chen Ling , Lin Guoguang
Published: October 2019

In this paper ,we study the long time behavior of solution to the initial boundary value problems for higher -orderkirchhoff-type equation with nonlinear strongly dissipation:At first ,we prove the existence and uniqueness of the solution by priori estimate and Galerkin methodthen we establish the existence of global attractors ,at last,we consider that estimation of upper bounds of Hausdorff and fractal dimensions for the global attractors are obtain.
The global attractors and exponential attractors for a class of nonlinear damping Kirchhoff equation
Authors: Zhu Huixian , Ai Chengfei , Lin Guoguang
Published: October 2019

This paper consider the long time behavior of a class of nonlinear damped Kirchhoff equationï€¨ ï€© ï€¨ ï€© 2 tt 1 t t u u u u u f x ï² ï€«ï¡ ï€­ï§ï„ ï€­ ï¡ ï€«ï¢ ïƒ‘ ï„ ï€½ . Study the attractor problem with initial boundary value conditions, then using priori estimate and the Galerkin method prove existence and uniqueness of solution, we obtain to the existence of the global attractors. The squeezing property of the nonlinear semi-group associated with this equation and the existence of exponential attractors are also proved.
OSCILLATION OF THREE DIMENSIONAL NEUTRAL DELAYDIFFERENCE SYSTEMS
Authors: THANGAVELU K , SARASWATHI G
Published: October 2019

This paper deals with the some oscillation criteria for the three dimensional neutral delay difference system of the form Î” xn+pnxn-k =bnynÎ± Î” yn =cn znÎ² Î”(zn)=-anxn-l+1Î³ , n=1,2,â€¦, Examples illustrating the results are inserted.
Annual Reviewer Acknowledgement
Authors: Editor Chief
Published: October 2019

The editorial team of the journal would like to thank the reviewers for their work in referring manuscripts during 2016.
Quasiregular mapping that preserves plane
Authors: Duka Anila , Sadikaj NdriÃ§im
Published: October 2019

Quasiregular mappings are a natural generalization of analytic functions to higher dimensions. Quasiregular mappings have many properties. Our work in this paper is to prove the following theorem: If f ï€½ a ï€«b is a quasiregular mapping which maps the plane onto the plane, then f is a bijection. We do this by finding the connection between quasiregular and quasiconformal mappings.
The global attractors and their Hausdorff and fractal dimensions estimation for the higher-order nonlinear Kirchhoff-type equation*
Authors: Chen Ling , Wang Wei , Lin Guoguang
Published: October 2019

We investigate the global well-posedness and the longtime dynamics of solutions for the higher-order Kirchhoff-typeequation with nonlinear strongly dissipation:2( ) ( )m mt t tu ï€« ï€­ ï„ u ï€« ï¦ ï D u ï ( ) ( ) ( )mï€­ ï„ u ï€« g u ï€½ f x . Under of the properassume, the main results are that existence and uniqueness of the solution is proved by using priori estimate and Galerkinmethod, the existence of the global attractor with finite-dimension, and estimation Hausdorff and fractal dimensions of theglobal attractor.
A Simulation Comparison of Bootstrap Procedures in Periodically Correlated Time Series Models
Authors: Margo Lorena , Milo Eljona
Published: October 2019

The presence of periodicity in data with periodic structure has become an important issue in parameter estimation. Several methods have been studied with intention estimating different parameters or constructing confidence intervals for the parameters. In this paper we investigate the performance of the bootstrap procedures designed for dependent data in the case of Periodically Correlated time series models. Several models with periodic structure are studied in this paper and we use R programming language to realize a simulation comparison of the performance of bootstrap procedures presented.
DETERMINATION OF SOME AGRONOMICAL CHARACTERISTICS AND ESSENTIAL OIL VARIATION IN DIFFERENT LOCAL Ocimum basilicum L. ECOTYPES UNDER SEMI-ARID CLIMATIC CONDITIONS
Authors: Kizil Suleyman , Toncer Ozlem , Sogut Tahsin , Diraz Emel , Karaman Sengul
Published: October 2019

The study aimed to determine agronomic characteristics and essential oil components of different basil ecotypes in semi-arid climatic conditions of South Eastern Anatolia, Diyarbakir, Turkey. Two-year harvest data about fresh and dry herb yield, dry leaf yield, essential oil content and its components from the plants of year 2015 and 2016 was analyzed in this study. Essential oil components were detected by gas chromatography/mass spectrometry (GC/MS). The resulting outcomes demonstrated that both ecotypes and harvests had important effects on fresh and dry herb, dry leaf yield and essential oil contents of sweet basil. The highest dry leaf yield was noted from green leafy ecotypes and from second harvest stage. Twenty-three constituents were detected in the essential oil of O. basilicum ecotypes. The main components of basil essential oil were linalool, methyl chavicol, neral, geranial and methyl cinnamate that differed according to ecotypes and harvests during experimental years 2015 and 2016. Purple leafy basil ecotypes were determined as linalool rich, while greenish leaf ecotypes were abundant in methyl chavicol. Silbe – green ecotype contains higher neral and geranial levels than the other ecotypes. It was concluded that basil plant could be grown successfully and harvested two or more times to prefer for maximum dry leaf yield and essential oil contents under semi-arid climatic conditions.