bluuebunny/crossref_metadata_2025 huggingface dataset:
INFLUENCE OF BRAKING VALVE OPENING AND CLOSING ANGLES UPON TORQUE
Authors: MANOLACHE-RUSU IOAN-COZMIN , SUCIU CORNEL , PĂTULEANU LILIANA , ANDRONIC FLORIN
Published: October 2018

Engine brake systems are based on the concept of spending a large amount of the vehicle’s kinetic energy by releasing pressure from the cylinder. Although an important part of the kinetic energy is used during compression, unless the spring effect of gases is suppressed, a good portion of it is returned to the wheel during the power stroke. This goal can be achieved by releasing of compression just before maximum cylinder pressure is reached. The present paper illustrates investigations upon the exhaust valve opening and closing angles that determine a braking event and their influence upon engine torque.
NEW APPROACH ON MATHEMATICAL MODELING OF JAKE BRAKE PROCESS FOR DIESEL ENGINES
Authors: MANOLACHE-RUSU IOAN-COZMIN , SUCIU CORNEL , ANDRONIC FLORIN , PĂTULEANU LILIANA , RADION IVAN
Published: October 2018

Auxiliary braking systems, which include also the Jake brake system, have a decisive role in issues such as road safety and optimization of fuel consumption. These issues are raised especially for heavy vehicles such as trucks or buses. One of the most delicate problems encountered when designing such a braking mechanism is to accurately evaluate the thermal conditions present in the combustion chamber. Failure to know and control these conditions can lead to deteriorations of injection system components, such as the injectors, which are no longer cooled by fuel. The present paper aims to advance a simple and quite accurate mathematical model to describe the processes occurring in a Jake brake system. Such a model can be very interesting when high power diesel engines are designed.
A STUDY ON DRAWING BIMETALLIC BRAZED SHEET PARTS
Authors: OLARU IONEL
Published: October 2018

This paper presents the study of the process of assembling metal sheets by using brazing of joints through cold welding. The processing technology is a normal drawing procedure. This paper explains schematically the drawing process. Aluminium and copper zinc alloys were used in order to observe the increase of the age-hardening response in brazed alloys. Of great importance is the filler material and especially the way in which it diffuses in the base materials. In this study, the material used was correctly selected, the bimetallic sheets were brazed properly and the behavior of the assembled sheets was according to standards.
THERMO - MECHANICAL LOADING IN BEVELLED AREA BETWEEN TWO CYLINDRICAL SHELLS WITH DIFFERENT THICKNESSES. THEORETICAL STUDY - CONNECTION LOADS
Authors: ZICHIL VALENTIN , IATAN RADU I. , BIBIRE LUMINITA , BUSUIOCEANU (GRIGORIE) PARASCHIVA , ŞERBAN LAURENŢIU
Published: October 2018

This paper addresses the problem of stress concentration in the transition area, between two cylindrical shells with different thicknesses. To reduce the intensity of the stresses and strains developed under the action of external mechanical and /or thermal loads, an original method is proposed, using method of short structural elements for shells, respectively bending moments theory and deformations continuity (displacements and rotations). In this sense, the transition between shell rings is considered linear variable in four constructive variants (with the same inner or outer surface, respectively the same median surface, or different median surfaces). Based on the evaluated intensity of the stress, it can be concluded which is the preferred variant the design stage, or deduction of the same sizes, in case of technological deviations (cutting errors, so as to result the same inner or outer surface, as in case of the same median surface). Article content refers in this configuration the setting mode related of connection loads that will be taken into account in tensions expressions.
SIMULATION BY MEANS FINITE ELEMENTS OF A PREVENTIVE ANTI-ICING SYSTEM FOR WIND TURBINE BLADES
Authors: VELASCO P. MUÑOZ , VELASCO L. MUÑOZ , ORTIZ M.P. MORALES , GIRO M.A. MENDÍVIL , CASTELLÓ M.C. JUÁREZ , BERMEJO J.A. RUIZ
Published: October 2018

This paper describes the results of a research project undertaken under a research contract with the company DERSA, entitled “Development of a blade anti-icing system for conventional wind turbine models applicable to operational installations”. The goal of the project was developing and analyzing a system which must prevent the build-up of ice on the outer surface of buildings and must be able to melt it under extreme conditions. The idea is to apply the system to existing wind turbines, so the project starts with numerous conditioning factors and limitations. The chosen system operation has been analyzed using the ANSYS computer application.
THE EFFECT OF PLANT GROWTH-PROMOTING RHIZOBACTERIA ON MOBILITY OF TOXIC ELEMENTS FROM PHOSPHOGYPSUM AND IMPLICATION ON HUMAN EXPOSURE
Authors: STEFANESCU IOANA-ADRIANA
Published: October 2018

This study investigated the effects of a plant growth- promoting rhizobacteria on soil treated with phosphogypsum (PG) as the mineral additive. The indigenous bacterial strain was isolated from PG polluted soil and identified as Bacillus megaterium, which is able to stimulate plant growth under heavy metals stress conditions. There were nine treated soils with three replicates: (1) control (without PG and inoculums (I) application); (2) control with inoculums (without PG application); (3) - (9) PG application (1, 2, 3, 4, 6, 8 and 10%) equivalent to 10 - 220 t ha−1. The objectives of this study consisted on monitoring the heavy metals levels (Cu, Fe, Zn, Mn) in the body of soybean (Glycine max) and evaluation of the human health risk. This work demonstrates that PG-BM30 coupling effect in the soil on seed germination, seedling growth, biomass accumulation and heavy metals bioaccumulation do not exhibit risk to human health.
RISKS FOR THE CAREER DEVELOPMENT OF THE YOUNG ENGINEERS UNDER THE CONDITIONS OF ECONOMIC STAGNATION: A CASE STUDY FOR THE UNIVERSITY OF RUSE
Authors: DINOLOV OGNYAN , MIHAILOV NICOLAY
Published: October 2018

The trends in the number of applicants and of the admission of students in engineering specialties in the University of Ruse, Bulgaria are analyzed in this work. It is found that the admission of students constantly decreases throughout the considered period (2009-2013). The structure of the main sectors of the economy of the North-Central Region of Bulgaria, particularly Ruse District, is reviewed. The largest share is of the sector of the Mechanical Engineering followed by the Chemical Industry sector. The risk of inefficient use of financial and human resources, caused by the economic stagnation, is indicated. S-O, S-T, W-O and W-T strategies for reducing the adverse effect of the economic, social, demographic and other factors are synthesized using SWOT analysis. This will helps politicians, decision makers and managers to overcome the risk for the career development of the young engineers inRuseregion, and inBulgaria. The obtained results can be used in building, designing and implementing strategies to overcome the investigated problems.
TEXTURAL AND MORPHOLOGICAL CHARACTERIZATION OF COPPER(II)-EXCHANGED ROMANIAN CALCIUM BENTONITE
Authors: GEORGESCU ANA-MARIA , BRABIE GHEORGHE , NISTOR ILEANA DENISA , PENOT CLAUDE , NARDOU FRANÇOISE
Published: October 2018

Romanian calcium bentonite was modified by copper(II) ion-exchange, by varying the copper precursors (chloride, sulphate) and synthesis parameters (pH, temperature, time). The quantification of the Cu(II) ions was carried out by atomic absorption spectrophotometer. The modified bentonites were characterized by textural analysis (specific surface area by the Brunauer-Emmett-Teller method (BET) and by nitrogen adsorption/desorption isotherm), structural composition (X-ray diffraction (XRD)) and morphological analysis (scanning electron microscopy (SEM)). Analysis of the nitrogen adsorption/desorption isotherm shows that ion exchanged bentonites, not only contain mesopores, but micropores in larger quantities too. The values of the specific surface area increased by about 20 m2/g compared with raw bentonite, but the interlamellar distance values do not vary substantially. Scanning electron micrographs were acquired to demonstrate changes in the texture of the clay before and after ion exchange.
FITTING AN ELLIPSE TO THE SET OF INTENSITY DATA POINTS OF VRANCEA EARTHQUAKES
Authors: BURTIEV RASHID
Published: October 2018

Fitting an ellipse to the set of intensity data points of earthquakes occurred on 11.10.1940, 07.04.1977, 31.08.1986, 30.05.1990 and 31.05.1990 is performed. Test criteria indicate that the ellipse smoothes the observed line of macroseismic field. For all earthquakes, focal axes of 5, 6 and 7 EMS-98 intensity zones are directed along the y-axis. For other zones are oriented along the parallels. This fact is one more acknowledgement of the anisotropy of a geophysical medium. Approximation of the set of points with an ellipse is performed using the method proposed by Fitzgibbon. 
BALANCING THE DEEP LOOSENING MACHINE WITH ACTIVE FURROWS
Authors: DAVID ALEXANDRU-DORIN , VOICU GHEORGHE , MATACHE MIHAI , GHEORGHE GABRIEL
Published: October 2018

The stability of machines for soil preparation during the work process is influenced by a number of variable sizes of which the most important are the soil strength and configuration. The stability of deep soil loosening machines with fixed furrow during the work process is studied like vertical stability for the plow. Less studied in the scientific literature, is the stability of deep soil loosening machines with active furrows powered for the tractors PTO with a quadrilateral mechanism.
MANAGING THE ENVIRONMENTAL HAZARDS OF WASTE TIRES
Authors: KORDOGHLI SANA , PARASCHIV MARIA , KUNCSER RADU , TAZEROUT MOHAND , PRISECARU MALINA , ZAGROUBA FETHI , GEORGESCU IONUT
Published: October 2018

This paper presents an experimental approach on understanding and managing the environmental hazards of co-products resulted during energy recovery processes applied on scrap tires. As tire combustion faces serious problems related to harmful emissions, pyrolysis appear as a process that allow the management of toxic compounds.

Thus, for the reactions that occur during pyrolysis and combustion of tires organic matters the main intensive degradation thermal ranges have been established. The work was carried out by coupling thermogravimetric analysis (TGA) of tire samples with bench scale reactor in order to identify the relationships between thermochemical behaviour and products distribution. 
APPLICATION OF LOW-COST ADSORBENT IN THE TREATMENT OF SAMARU STREAM WATER
Authors: MOHAMMAD YAHAYA S. , SHAIBU-IMODAGBE EGBENYA M. , IGBORO SUNDAY B. , GIWA ABDUL-RAHEEM , OKUOFU CHARLES A.
Published: October 2018

In this study, low-cost adsorbent was produced and applied in the treatment of Samaru stream water. Treatment of Samaru stream water was carried out in column mode to determine the efficiency of the low-cost adsorbent for improving the quality of Samaru stream water. To achieve this, the stream water samples were collected from three different points (point 1, 2 and 3) and the values of the following parameters were analyzed before and after treatment: pH, Electrical Conductivity (EC), Total Dissolved Solid (TDS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammonium, Nitrate, Chloride, Iron (III), Copper (II), Lead (II) and Zinc (II). Results obtained from the study show that highest removal efficiency of 96.18 % was attained for chloride and this was followed by 91.76 %, 90.91 % and 90 % for iron (III), copper (II) and ammonium respectively while the least was 6.33 % (pH). Therefore, the high removal efficiency achieved for some sample parameters in the treatment of Samaru stream water implied that the low-cost adsorbent could be employed in the simultaneous removal of contaminants from a multicomponent system.
DETERMINING DYNAMIC ACCURACY INDICATORS OF MULTICOORDINATE WORKING MACHINES IN THE FORM OF ROD STRUCTURES FOR FUZZY INERTIA AND DISSIPATION PARAMETERS
Authors: STRUTYNSKIY VASYL , KOZLOV LEONID
Published: October 2018

The paper considers a manipulator design and its dynamic model developed by the authors. On the basis of this dynamic model a mathematical model of the manipulator has been created, which enables its spatial motion investigation.  The mathematical model takes into account the manipulator inertia tensor with fuzzy components. The developed computation procedure makes it possible to determine cross-angular displacements of the manipulator for impact and sinusoidal laws of torque variation. During random variations of the moment of external forces, complex cross-angular displacements of the manipulator occur. The displacement trajectory includes an elliptical region that corresponds to the ellipse of the manipulator elastic system stiffness. The range of the manipulator upper-end displacement trajectory is maximal in the direction close to that of minimal cross-angular stiffness of the manipulator elastic system.
SIGNIFICANCE OF BUILDING MAINTENANCE MANAGEMENT SYSTEM TOWARDS SUSTAINABLE DEVELOPMENT: A REVIEW
Authors: MYDIN MD AZREE OTHUMAN
Published: October 2018

The notion of building maintenance is separated into two elements specifically building maintenance management and building maintenance technology. Building maintenance management should accurately be considered as unfolding how a system of maintenance endeavor might be prearranged to deal with a problem of building maintenance. It distinguishes that, aside from locating and remedying the building deficiency an effective programme to restrain overall cost of maintenance but also in an effort to maximize the gain and benefits of the savings. There are a few factors that influence the decision to accomplish the maintenance work. There are the maintenance needs that is the principal aspire of maintenance is to protect a building in its early stage and some major rationale for maintaining building are retaining its significance and value of investments, maintaining the building in a condition that it persists to accomplish its purpose and presenting a good outer shell. Besides that, the efficient maintenance management system embraces many skills and efforts that include identifying maintenance needs and the accurate and spot on remedies. In general, there have four types of maintenance which are breakdown or corrective maintenance, scheduled maintenance, preventive maintenance and also predictive maintenance. This paper will review and discuss some of the major elements of building maintenance towards achieving sustainable building.
THE EFFECT OF WATER HARDNESS ON RHEOLOGICAL BEHAVIOR OF DOUGH
Authors: ȘTEFAN ELENA-MĂDĂLINA , VOICU GHEORGHE , CONSTANTIN GABRIEL-ALEXANDRU , FERDEȘ MARIANA , MUSCALU GHEORGHE
Published: October 2018

Flour and water are basic components in dough formation process. The water quality affects the whole breadmaking process and the quality and retention period of bakery products. In bakery, an important role is played by the hardness of water; are preferred water having a hardness by 5 - 10o D (German degrees) and, in some cases, are preferred the waters with 10 – 20o D, depending on the characteristics of gluten. For the experimental determination, presented in this paper, were used samples of FA 650 flour type (white flour) and four kinds of water with different hardness values. To determine the dough rheological characteristics were made measurements according to AACC 54-21 standard method, using the Brabender Farinograph-E model (300 g mixer capacity). 
The paper presents the study of rheological characteristics variation of wheat flour dough, depending on the water hardness used in mixing and formation process.
GEOMORPHOLOGICAL CHANGES IN BUCHAREST CITY OVER THE LAST 150 YEARS
Authors: GHEORGHE DIANA , ARMAŞ IULIANA
Published: October 2018

Bucharest, the capital of Romania, is situated in the Romanian Plain and is being drained by Dambovita and Colentina Rivers. During the last 150 years, the natural landscape has been intensely modified by its inhabitants. The most prominent change has been made in the Dambovita floodplain, where the natural land features have been completely changed. The present paper aims to highlight the major geomorphological changes that Bucharest suffered over the last 150 years. The major human intervention was the improvement of Dambovita channel and the demolition and/or the construction of different buildings during the communist period. Besides the human induced geomorphological changes, there is also soil creeping as a natural geomorphological phenomenon that shapes the landscapes of Bucharest. 
NUMERICAL SIMULATION OF THE MOVEMENT OF SMOOTH PARTICLES AT THE ELECTROMAGNETIC SEPARATORS WITH DRUM
Authors: TUDOR CĂSĂNDROIU , GABRIELA VALERIA CIOBANU , LIANA ALEXANDRA VIŞAN
Published: October 2018

The paper presents the main theoretical elements underlying the seeds separation process after their surface. During the seed cleaning and sorting process according to the surface condition machines with electromagnetic or magnetic separators drums are used. In this paper is made a comparative theoretical analyze of smooth seeds movement on electromagnetic drum surface and trajectory in free flight, neglecting and taking into consideration air resistance, detached from the separation drum and it is evaluated the collection area of detached seeds. On this basis, were carried out several case studies and numerical simulations for three different machines.
PREVENTION MEASURES OF ENVIRONMENTAL RISKS GENERATED BY UNCONTROLLED STORAGE OF WASTES – A REVIEW
Authors: MIRELA DINCĂ , GIGEL PARASCHIV , GHEORGHE VOICU , GEORGIANA MOICEANU , NICOLETA UNGUREANU , MIHAI CHIȚOIU
Published: October 2018

The issue regarding the negative impact on the human health and environment, as a result of waste storage by using improper methods remains of great actuality, especially with the increasing trend of the generated wastes quantity. The present paper aims to present the most efficient methods that can be used to reduce and prevent environmental risks caused by uncontrolled storage of agricultural waste. Will be treated theoretical aspects related to the actual state of waste management in the E.U. but also in Romania, methods of treating organic waste, as well as prevention measures of environmental risks.
NOISE PREDICTION, CALCULATION AND MAPPING USING SPECIALIZED SOFTWARE
Authors: ALINA PETROVICI , CLAUDIA TOMOZEI , RICARDO GEY FLORES , FLORIN NEDEFF , OANA IRIMIA
Published: October 2018

This paper presents a set of software for prediction, calculation and noise mapping. These are useful both in assessing noise and adopting practical measures in order to reduce noise in areas with intense traffic. The software, through their working tools, allows making comparisons concerning noise before and after implementing noise reduction measures. The analyzed software's of noise prediction, calculation and mapping are specialized for noise generated by traffic.
STUDIES CONCERNING THE BEHAVIOR OF THE SUSPENDED SOLIDS IN THE MIXING PROCESS
Authors: MIHAELA-ELENA DASCĂLU , EMILIAN MOŞNEGUŢU , VALENTIN NEDEFF , ALEXANDRA-DANA CHIȚIMUȘ , NARCIS BÂRSAN
Published: October 2018

A high importance is given to the studies concerning the most reliable mixing process with a minimum of energy consumption, because the mixing process is an often used operation in various industries. The main purpose of this paper is to determine and to identify the behavior of the dispersed phase, in this case, the solid particle, during the mixing process. Through the experiment, the mixing process was recorded using a High-Speed camera, which enables following the behavior of the solid particle. The resulting data were used for different types of charts.
OVERVIEW OF WORKING OF STRILING ENGINES
Authors: SUNNY NARAYAN , VIKAS GUPTA
Published: October 2018

Engines are common devices which are important sources of power to run several devices in modern society. Many of these engines are very complex and need high levels of technological advances for smooth operations. This papers focuses on the identification, design and construction of a Stirling engine which can be easily manufactured without any special tooling or exotic materials. The underlying theory of the device is also presented and discussed with future recommendations to improve the current design.
REVIEW ON THE ROAD TRAFFIC NOISE ASSESSMENT
Authors: ALINA PETROVICI , CLAUDIA TOMOZEI , FLORIN NEDEFF , OANA IRIMIA , MIRELA PANAINTE-LEHADUS
Published: October 2018

This paper presents a synthesis of current state of the assessment of road traffic noise in urban areas considering economic, social and legal aspects. Therefore, there were described several prediction methods of the urban traffic noise. These methods are useful in calculating the exposure of the population at noise levels which exceed the permissible limits. Mapping is one of the most common methods used for the assessment of noise. Whether it is industrial, airport, rail or road traffic noise, noise mapping provides accurate data needed later in developing action plans against noise. The road traffic noise assessments are performed periodically, and a representative picture of the noise in the analysed areas is obtained. Then, the action plans can be developed in order to reduce road traffic noise, where it is necessary.
A MULTICRITERIA DESCRIPTION OF RULES FOR PUBLIC PROCUREMENT
Authors: ŽIŽOVIĆ MALIŠA , ŽIVKOVIĆ MILUTIN
Published: October 2018

At an announced tender of a contracting party, in the processes of public procurement of goods or services, a method of decision-making follows after interested bidders submit bids. Such method of choice is characteristic for all business systems with majority share of state capital. Methods of decision-making come down to selecting the best bids, because mistakes in the selection should be excluded. However, in practice, the problems of a wrong choice are manifested in dissatisfaction of the bidders. The problem then causes a delay in the procurement process, and often the retrial. In order to prevent this from happening authors of this paper suggest a somewhat different methodologies in selecting the most advantageous tender to the contracting authorities. The proposed method will be the case of the of Parking service (PC) from Belgrade (service of overhaul of the devices) will show a possible way of selecting the best alternative bids, taking into account previously adopted criteria.

 
THEORETICAL ANALYSIS OF INFLUENTIAL PARAMETERS TO COMPRESSION AND DECOMPRESSION PROCESS OF COMPRESSED OIL IN HYDRAULIC SYSTEMS OF THE PRESS
Authors: ŽIVKOVIĆ MILUTIN
Published: October 2018

Compressibility of hydraulic oil is very significant for large diameter cylinder presses, especially if they are exposed to high pressures. The paper presents a theoretical analysis of the process of compression and decompression of oil in the cylinders with and without the presence of air presenting an analog model. Although considerations are relating to the ideal conditions of the process of compaction, the paper defines the basic mathematical processes depending on compression and discharge of the same. They refer to the definition of the time discharge and elimination of adverse effects in the same.
DIOXINS / FURANS (PCDDs/PCDFs) CONTROL IN CEMENT INDUSTRY IN ROMANIA
Authors: CIOBANU CRISTIAN , VOICU GHEORGHE , TOMA MAGDALENA-LAURA , MARCU SILVIU
Published: October 2018

The most important sources of dioxins are waste incineration, industrial (dioxins are by-products), volcanic eruptions, fire, etc. The Romanian law 278/2013 provides the air emissions limit of 0.1 ng/Nm3 gases for dioxins and furans emitted by the incineration and co-incineration plants. Some aspects regarding the control of these substances in the gases from a cement factory in Romania are presented in this paper. In incineration plant were used various fuels. However, the substances level mentioned above was within the allowed limits.
ENVIRONMENTAL IMPACT OF WATER TREATMENT PROCESS. A SYSTEMATIC REVIEW OF EVALUATION METHOD
Authors: FABIAN FLORINA , NEDEFF VALENTIN , PANAINTE - LEHADUS MIRELA , BÂRSAN NARCIS , IRIMIA OANA , RACOVITA SILVIA
Published: October 2018

In an international context in continuous development, water treatment processes become an important component of society where we live. Attention is directed on water treatment processes in the context of increasing water demand. This study proposes a systematic review of methods for the assessment of the environmental impact of Water Treatment process. The approach is based on the evaluation of LCA, Externalities Evaluation methodology and Carbon Footprint methodology, each of these methods have the environmental indicators able to relate direct and indirect emissions generated by any water treatment process. The present review compares and discusses the implementation of the above-cited methodologies to different case studies. The results in short show that Carbon Footprint only assesses the global warming potential of a water treatment plant, whereas Life Cycle Analysis and assess multiple environmental impact categories, which may include global warming, but also impacts on human health, ecosystems quality, etc. There are different standards and organizations around each assessment. The ExternE method on the contrary aims to quantify external impacts, from both economic and social points of view, to weight each endpoint of the impact categories.
SOLVING TECHNICAL PROBLEMS THROUGH EQUATIONS
Authors: VIERU DANILA , VOICU GHEORGHE , TOMA LAURA , TUDOR PAULA
Published: October 2018

The need for solid household waste (MSW) generated by economic and domestic activities is continuous and should be imposed to protect the health of the population and environmental factors. After sorting the generated waste, „the remaining residue” favours the occurrence of some pollutants, among which we mention suspended particulates, disagreeable odours, greenhouse gases, etc. This waste has to be managed in safe health and environment, no matter where it was generated. Managing them means either storing in statutory environmental protection facilities or incinerating in authorized installations with integrated environmental permitting. Waste storage may be subject to a mathematical equation called the time equation of a landfill. On the basis of such equation, it will be possible to calculate annually the amount of degraded waste gas generating gas (LFG) containing CH4 and CO2. The amount of degraded waste means waste with high dissolved organic carbon (DOC).
El prestigio social de la profesión según los futuros docentes de Educación Primaria y Secundaria
Authors: Martínez de la Hidalga de la Torriente Zoe , Villardón-Gallego Lourdes
Published: October 2018

Resumen:El prestigio social de la profesión docente es un factor que afecta a la configuración de la identidad del docente y a la calidad educativa. Esta investigación tiene como objetivo analizar la percepción que los estudiantes del Grado en Educación Primaria (GEP) y del Máster en Formación del Profesorado de Educación Secundaria (MES) tienen sobre la imagen social del profesor. Han participado en la investigación estudiantes del GEP, 147 de primer curso y 117 de cuarto y estudiantes del MES, 59 en el inicio de los estudios y 52 a su finalización. De ellos, 44 estudiantes respondieron en ambos momentos. La consideración que los estudiantes tienen sobre el prestigio de la profesión evoluciona a lo largo de la formación inicial, siendo cada vez más conscientes de que está infravalorada. Las razones que los estudiantes argumentan para explicar la escasa consideración social del docente giran en torno a tres ideas: insuficiente impacto social, buenas condiciones laborales, sencillez tanto de las tareas y funciones que desempeñan como de los requisitos académicos para conseguir la certificación. Los resultados tienen implicaciones para la formación inicial del profesorado y para la calidad de la educación. Abstract:Teachers’ social prestige is a factor that affects teachers’ identity and quality of education. This research aims to analyze education undergraduate and master students’ perception about the teacher’s social image. Participants in this research were 147 first year and 117 fourth year Undergraduate students in Primary Education, and 59 Master’s students in Secondary Education at the beginning of the course and 52 at the end. Among them, 44 students participated in both moments. Students’ perception about the prestige of the teaching profession develops over the initial teacher training towards a greater awareness of its undervalued status. The reasons provided by the students to explain the low social status of the teacher deal with three main ideas: a) lacking social impact; b) positive working conditions; c) simplicity of teachers’ tasks and responsibilities as well as of the academic requirements for their qualifications. Our results have implications for the initial teacher training as well as for the quality of the education.
Diseño y validación de un cuestionario para la alfabetización ambiental del profesorado de Primaria en formación inicial
Authors: Álvarez-García Olaya , Sureda-Negre Jaume , Comas-Forgas Rubén
Published: October 2018

Resumen:La formación del profesorado en Educación Ambiental (EA) es fundamental para posibilitar la formación de una ciudadanía ambientalmente educada. En el presente artículo se describe el proceso seguido para el diseño y la validación de un instrumento con el que evaluar las competencias ambientales del alumnado del Grado de Maestro/a de Primaria. En una primera fase se analizaron y determinaron las competencias básicas que deben ser evaluadas entre este alumnado a partir del concepto de “alfabetización ambiental” y la literatura científica existente sobre el tema. Delimitadas dichas competencias, se definieron las variables de análisis y se elaboraron los ítems con los que se medirían cada una de estas competencias. Mediante el juicio y criterio de un panel de expertos/as en EA se validó el contenido del cuestionario. Para aplicar las pruebas de confiabilidad estadística se llevó a cabo una prueba piloto del instrumento. Como resultado se obtuvo un cuestionario validado y fiable conformado por 89 ítems con el que poder evaluar y determinar las competencias ambientales del profesorado de primaria en formación inicial -adaptable a otros colectivos de similares características. Abstract:Teacher training in Environmental Education (EE) is essential to ensure the development of an environmentally literate citizenry. In this article, we describe the process followed for the design and validation of an instrument to assess the environmental competencies of primary pre-service teachers. In a first phase the basic competencies that should be assessed among these students were determined according to the concept of "environmental literacy" and the existing scientific literature on the topic. Once delimited these competencies, the analysis variables were defined and the items that would be measured with each of these competencies were developed. Following the opinion and judgement by a panel of experts in EE the content of the questionnaire was validated. To apply statistical reliability testing, a pilot test was conducted. As a result, a validated and reliable questionnaire composed of 89 items with which to evaluate and determine the environmental competences of primary teachers in initial training -adaptable to other groups of similar characteristics- was obtained.
Statistical Equations to Estimate the In-situ Concrete Compressive Strength from Non-destructive Tests
Authors: Al-Bayati Ahmed Faleh
Published: October 2018

The aim of this study is to propose reliable equations to estimate the in-situ concrete compressive strength from the non-destructive test. Three equations were proposed: the first equation considers the number of rebound hummer only, the second equation consider the ultrasonic pulse velocity only, and the third equation combines the number of rebound hummer and the ultrasonic pulse velocity. The proposed equations were derived from non-linear regression analysis and they were calibrated with the test results of 372 concrete specimens compiled from the literature. The performance of the proposed equations was tested by comparing their strength estimations with those of related existing equations from literature. Comparisons revealed that the proposed ultrasonic pulse velocity and combined equations achieved better agreements with the test results than the related existing equations, whereas the proposed and the existing rebound hummer equations were inconsistent.
LUDOVICO MARRACCIO LUCENSI VE ALCORANI TEXTUS UNIVERSUS ARABICÈ ET LATINÈ ADLI KUR’AN TERCÜMESİ ÜZERİNE
Authors: YAŞAR Naif
Published: October 2018

Kur’an, bir
Batı diline ilk defa 1143’te Kettonlu Robert (1110-1160) tarafından tercüme
edilir. Latinceye yapılan bu tercüme ise iki konuda meşhur olmuştur: İlki; bir Batı
diline yapılan ilk tercümedir, ikincisi; bu tercüme tam olmamakla beraber, bazen
yanlış, bazen özet ve bazen de tahrif edilmiş pasajlarla doludur. Bu tercümenin
kötü şöhretinin aksine Ludovico Marraccio’nun
(1612-1700) 1698’de yayınlanan Latince Kur’an tercümesi ilmî değeri yüksek,
titiz ve yoğun bir emeğin mahsulü kabul edilmiştir. Marraccio bu çalışmasında
Kur’an metnine mümkün mertebe sadık kalarak tipik lafzî bir tercüme örneği
ortaya koymuştur. Tercümenin devamında ise ilgili ayetlere bağlı olarak İslami
literatürden bazı malumatı aktardıktan sonra hem Kur’an’a hem de İslami
öğretiye eleştirilerini yöneltmiştir. Bu tercüme her ne kadar Türkiye’de
yayınlanan bazı eserlerde kısaca tanıtılmış olsa da buralarda verilen bilgiler
genelde bizzat bu tercümeye değil de ondan bahseden kaynaklara dayanmaktadır.
Bundan dolayı biz Kur’an tercüme tarihi açısından önem arz eden bu çalışmayı
bizzat tanıtmayı gerekli gördük. Bu makalede öncelikle bu çalışmayı kısaca tanıttıktan
sonra Bakara Süresinin ilk iki yüz ayetini tercüme ederek söz konusu eserin
yakından tanınmasına katkıda bulunmaya çalışacağız.
Ensuring the competitiveness of the scientific approaches of eco-tourism. A case of Uzbekistan
Authors: Mahmudova Aziza
Published: October 2018

This article examines the ways and means of using rural tourism for the development of ecotourism. Moreover, ensuring the competitiveness of the scientific approaches of the eco-tourism in Uzbekistan. Finally, Uzbekistan has been considered as a major tourism country where the state may get developments in rural areas while making the focus on eco-tourism perspective
PENGARUH KEMASAN DAN HARGA FRESTEA TERHADAP KEPUTUSAN PEMBELIAN REMAJA KOTA MEDAN
Authors: Sudarso Andriasan
Published: October 2018

Hasil penelitian menunjukan bahwa secara parsial, kemasan berpengaruh secara positif dan signifikan terhadap keputusan pembelian produk Frestea. Besarnya pengaruh secara parsial antara kemasan dan keputusan pembelian adalah 0,286; atau dapat dikatakan bahwa 28,6% pengaruh kemasan terhadap keputusan pembelian konsumen dengan ketentuan variabel lainnya adalah tetap. Sedangkan harga berpengaruh secara negatif dan parsial terhadap keputusan pembelian produk Frestea. Besarnya pengaruh secara parsial antara harga dan keputusan pembelian adalah -0,307; atau dapat dikatakan bahwa 30,7% pengaruh negative dari harga terhadap keputusan pembelian konsumen dengan ketentuan variabel lainnya adalah tetap. Secara serempak, kemasan dan harga berpengaruh secara signifikan terhadap keputusan pembelian konsumen. Besarnya pengaruh secara serempak antara kedua varibel tersebut dengan keputusan pembelian adalah 0,138; atau dapat dikatakan bahwa 13,8% pengaruh positif dari kemasan dan harga secara serempak terhadap keputusan pembelian konsumen dengan ketentuan variabel lainnya adalah tetap.
Linguistik dan Psikolinguistik, Hubungan Psikologi dengan Linguistik dan Objek Kajian Psikolinguistik
Authors: Rahmat Wahyudi
Published: October 2018

Psikolingustik merupakan teori antara psikologi dan linguistik. Teori tersebut sangat berbeda tetapi teori tersebut berhubungan dalam meneliti bahasa sebagai objek formal. Artikel ini membahas tentang linguistik, psikolinguistik dan kajiannya. Di dalam kata psikologi membahas ilmu yang mengkaji jiwa manusia yang bersifat abstrak sedangkan kata linguistik membahas tentang bahasa sebagai objek kajian. Untuk itu teori psikolinguistik dapat menguraikan proses-proses psikologi yang berlangsung jika seseorang mengucapkan kalimat-kalimat yang didengarnya pada waktu berkomunikasi dan kemampuan berbahasa tersebut bisa diperoleh dari manusia.
Inconsistent curiosity: Augmentation and blunting of curiosity in daily life and implications for well-being
Authors: Lydon-Staley David M. , Zurn Perry , Bassett Danielle S
Published: October 2018

Curiosity promotes focused engagement in novel and challenging situations and the accruement of resources that promote well-being. A critical open question is the extent to which curiosity lability, the degree to which curiosity fluctuates over short timescales, impacts well-being. We use data from a 21-day daily diary protocol as well as trait measures collected prior to the daily diary in 167 participants (mean age = 25.37 years, SD = 7.34) to test (i) the importance of curiosity lability for depression, flourishing, and life satisfaction, (ii) day-to-day associations among curiosity and happiness, depressed mood, anxiety, and physical activity, and (iii) the extent to which day’s mood acts as a mediator between day’s physical activity and day’s curiosity. Regression analyses indicate positive associations among curiosity lability and depression, as well as negative associations among curiosity lability and life satisfaction, above and beyond trait curiosity. No evidence for an association between curiosity lability and flourishing emerge when controlling for trait curiosity. Multilevel model results indicate that curiosity is higher on days of greater happiness and physical activity, and that curiosity is lower on days of greater depressed mood. We observe no association between curiosity and anxiety. Multilevel mediation models indicate evidence consistent with day’s depressed mood and happiness as mediators between physical activity and curiosity. In sum, we find that greater consistency in curiosity is associated with well-being, identify several sources of augmentation and blunting of curiosity in daily life, and provide support for purported mechanisms linking physical activity to curiosity via mood.
The Effect of Preregistration on Trust in Empirical Research Findings
Authors: Field Sarahanne Miranda , Wagenmakers Eric-Jan , Kiers Henk , Hoekstra Rink , Ernst Anja Franziska , van Ravenzwaaij Don
Published: October 2018

The crisis of confidence has played a primary role in undermining the trust researchers place in the findings of their peers, and our beliefs about the credibility of research results. Thus, the importance of increasing trust in credible reported research is paramount. Incentives such as preregistration are aimed at establishing a more trustworthy scientific literature, in that they help prevent various questionable research practices. As it stands, however, no empirical evidence exists demonstrating that preregistration does increase trust. Indeed, the objective merits of preregistration greatly lose in value if a researcher's subjective assessment of the value of preregistration does not align. Additionally, the picture may be complicated by a researcher's familiarity with the author of the study, regardless of the preregistration status of the research. The following proposal describes how we aim to test the extent to which preregistration increases the trust of participants in the reported outcomes. We also aim to assess how familiarity with another researcher might influence trust. We expect that preregistration increases researchers' trust in findings, relative to no preregistration, and that registered reporting increases trust more than preregistration alone. We also expect that familiarity enhances trust judgments to some extent, however we do not have specific expectations regarding the nature of this effect. We therefore include familiarity as an exploratory effect in our analyses. The OSF page for this registered report proposal and its pilot can be found here: http://dx.doi.org/10.17605/OSF.IO/B3K75
DIALEKTIKA RITUAL DAN HIBURAN DALAM KESENIAN BARONGAN DI KABUPATEN BLORA JAWA TENGAH
Authors: Guntaris Endik
Published: October 2018

PERHATIAN! Artikel ini merupakan pra-publish, sebuah publikasi awal sebelum naskah ujian thesis dilakukan sekaligus pemberitahuan bahwa karya ini asli dan belum dipublikasikan sebeumnya. Penelitian ini bertujuan mengkaji kesenian Barongan (local wisdom) yang tengah mengalami masalah perbedaan kepentingan, yakni kepentingan ritual dan kepentingan hiburan. Barongan merupakan refleksi kreatifitas seni dan budaya masyarakat Blora yang memiliki sifat kerakyatan dan syarat makna. Di antara maknanya adalah kekuatan dahsyat yang disimbolkan dengan bentuk Singa dari topeng Barongan. Lokasi penelitian di empat desa kabupaten Blora Jawa Tengah Indonesia. Penelitian kualitatif ini menggunakan pendekatan performance studies dengan sub pendekatan etnokoreologi. Pengumpulan data dilakukan dengan teknik observasi, wawancara mendalam, studi dokumen, dan analisis isi. Hasil penelitian menunjukkan bahwa ada dialektika antara kepentingan ritual dan hiburan dalam pertunjukan Barongan. Kedua kepentingan tersebut saling bersaing, saling bersanding, dan saling mempengaruhi dalam hal penyajian maupun strategi menarik animo penontonnya. Selain itu, ada dua bentuk (model) penyajian Barongan yang berhubungan dengan fungsinya, yaitu bentuk arak-arakan dan dramatari.
Sudjelovanje roditelja u procjeni potreba učenika za socijalnopedagoškim intervencijama – standardizacija mjernog instrumenta
Authors: Bouillet Dejana , Velimirović Irena
Published: October 2018

Cilj istraživanja koje je prikazano u ovom radu jest razviti mjerni instrument koji će omogućiti da se temeljem roditeljske procjene problema u ponašanju učenika identificiraju potrebe učenika za uključivanjem u socijalnopedagoške intervencije u osnovnoj školi. Radi se o Upitniku za procjenu potreba učenika za socijalnopedagoškim intervencijama - verzija za roditelje koji je konstruiran u sklopu projekta Razvoj modela socijalnopedagoških intervencija u osnovnoj školi Agencije za odgoj i obrazovanje. Istraživanje je provedeno na uzorku 2.865 roditelja učenika trećih, petih i sedmih razreda u 43 osnovne škole u Republici Hrvatskoj. U radu je prikazana procedura kreiranja konačne verzije upitnika koji ima zadovoljavajuće metrijske karakteristike (valjanost, objektivnost i pouzdanost). Faktorskom analizom je utvrđeno da upitnik mjeri: procjenu odnosa učenika prema obrazovanju, obavezama, vršnjacima, roditeljima, razredniku i materijalnoj dobiti, komunikativnost, mogućnost kontrole osjećaja i odgovornost u ponašanju učenika.
Pokazalo se da Upitnik za procjenu potreba učenika za socijalnopedagoškim intervencijama - verzija za roditelje primjereno razlikuje učenike s problemima u ponašanju od ostalih učenika, pri čemu normiranje kategorija učenika ovisi o njihovom spolu i dobi. Također je ustanovljeno da prema procjenama roditelja u osnovnim školama 13% učenika ima probleme u ponašanju, što je podudarno procjenama dobivenima od strane samih učenika.
Attitudes and decision-making in the child protection system
Authors: Delgado Paulo , Pinto Vânia S. , Carvalho João M. S.
Published: October 2018

In the contexts of family neglect or maltreatment, the State intervenes by safeguarding the development and well-being of the child or young person in danger. In more severe situations, the intervention may lead to the child’s removal from the family. The Portuguese Law on the Protection of Children and Young People in Danger (Law 142/2015 of September 8th) favours the placement of the child in a family environment, especially for children up to the age of six. Despite this, in Portugal, in 2015, 8 600 children were in out-of-home care, only 3.5% of which were placed in foster care, while the remaining children were in residential care. Therefore, one of the fundamental rights of the child – living in a family environment – is compromised in practice. This study aims to understand the decision-making process of 200 higher education students in domains related to child protection, and those of 200 professionals who are responsible for providing case assessments and recommendations for intervention in the Portuguese child protection system. Using the Child Welfare Attitudes Questionnaire (Davidson-Arad & Benbenishty, 2008, 2010), the study aimed to identify the participants’ attitudes regarding removal of at-risk children from home, reunification and optimal duration of alternative care, children’s and parents’ participation in the decision-making process, and assessment of foster care and residential care, with the purpose of promoting children’s development and well-being.
We concluded that both sets of participants (professionals and students) can be divided in two groups, one which is pro-removal and the other, which is less so. In comparison with students, professionals less often favour the removal of the child and more often defend reunification. There are no significant differences among participants regarding their opinion about the role of foster and residential care, and the participation of the child in the decision-making process. However, professionals tend to support parents’ participation in the decision-making process more than students do. Finally, we present some implications of our findings for the practice of child protection.
Current state of selective prevention practice of drug abuse in Croatia
Authors: Caha Dinka , Križan Helena , Velimirović Irena
Published: October 2018

Drug use is a phenomenon which seriously disturbs the health and the ability to function socially and in a balanced manner for a large number of young people in Croatia who are at the most sensitive stage of their individual development (Petrović, 1983; as cited in Bouillet, 2007). The perspective of developmental psychopathology helps to create all-encompassing theoretical models that explain the development of problems related to drug abuse, identify the groups that have the highest risk and guide the creation of logical models for prevention programs. This paper offers a hypothesized model of development of addiction problems in adolescence from the perspective of developmental psychopathology and uses it as a tool to analyse the current state of selective prevention practice in Croatia. The national focal point for drugs and drug addiction is located within the Office for Combating Drug Abuse of the Government of the Republic of Croatia. This Office also runs a Database of projects and programs administered in the field of drug demand reduction. According to the database review performed by the authors on June 26th 2016, 57 selective prevention programs were identified that fit the criteria for being “selective” (according to the definition by Mrazek & Haggerty, 1994). Among these, 15 selective prevention programs were identified as matching the criteria of “program” used by the US Department of Health and Human Services (US DHHS, 2013a & 2013b). The suggested theoretical model was subsequently compared to the goals and activities of these programs.