Archives-J 

Education students, as if they were happy, and obtain the necessary skills to solve problems and enable to proper decisions about their personal and social issues, is sightly scholars of Training and practitioners, and policy makers of education. This requires the use of modern teaching methods in education. One of the new methods of teaching that has many applications is discovery. Discovery method is based on learning search process and explains phenomena. In this paper, in order to be familiar with this approach, concepts, nature, structure and teaching methods are defined based on the discovery. Teaching techniques, such as exploratory learning and experimental Teaching methods.

Small sized iron oxide nanoparticles with were successfully synthesized on the surface of cellulose acetate (CA) by precipitation method. The cellulose acetate were dispersed in deionized water, after that ferric and ferrous chloride was added to this mixture and stirred. After the absorption of iron ions on the surface layer of the fibers, the iron formed was reduced with NaOH by a quick precipitation method. The mean diameter and standard deviation of iron oxide synthesized in cellulose/iron oxide nano-composites (CIONC) were 35 ± 2.42 nm. The prepared nanoparticles were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM) and vibrating-sample magnetometer (VSM) and FT-IR. XRD indicated the sole existence of inverse cubic spinel phase of magnetic iron oxide nanoparticles. The cellulose acetate/iron oxide prepared by this method has magnetic properties. The removal efficiency of iron and copper from wastewater by the new synthesized cellulose/ iron oxide nanocomposite after treatment were observed to be 92.96 % and 88.44 %, respectively in synthesized solution. Reduction percent of nitrate and phosphate from wastewater were 86.07% and 91.77 %, respectively. The new prepared cellulose/iron oxide nanocomposite had new physical and chemical characterization by new additives methodology that had high removal efficiency of heavy metals, nitrates and phosphates upon 86-92 % of inorganic pollutants. This research concerned with copper and iron removal from wastewater using magnetic nanoparticles of cellulose/iron oxide.

Isomeric Nickel (II) complexes of toluic acid hydrazide-hydrazone, HL have been synthesized through one pot synthesis. The ligand, HL and the complexes were characterized with FTIR, Uv-Vis, NMR and Mass Spectroscopies, Melting point, solubility, metal conductance, percentage metal and elemental analyses and magnetic susceptibility. The solubility test revealed that the compounds were generally soluble in DMSO hence the molar conductance of the complexes in DMSO showed that the complexes are electrolytic in nature. The mass spectroscopy, percentage metal and elemental analyses conformed with the formulated masses, while the compounds were stable at room temperature. The FTIR spectra of the ligand proved it to be bidentate and the ligand, HL coordinated to the Ni(II) ions through while the electronic spectra peaks showed that Ni(II) complex isomer I and Ni(II) complex isomer II assumed tetrahedral and square planar geometries respectively. The NMR spectra of Ni(II) complex isomer I gave broad bands due to paramagnetism while Ni(II) complex isomer II revealed the relevant peaks. The antibacterial activities of the compounds showed the complexes are more active against the ligand, with Ni(II) complex isomer 1 showing greater activity against k.pneumoniea.

The study was intended to investigate effects of pre-task and online task planning on IELTS Task 1 Academic Writing grammar. Forty five Iranian prospective IELTS candidates were randomly placed in three groups of Pre-task planning (PTP), Online-task planning (OTP), and Control group. In PTP, the required structures were given to the participants before the introduction of the task and then participants were asked to write the task. In OTP, as the instructor was presenting the different parts of the task, he introduced the relevant structures as well. For example, he explained the introduction and immediately he presented the types of structures candidates were supposed to write. In the control group, no planning of any sort was presented. The one-way ANOVA for the Grammatical Range and Accuracy (GRA) showed that there was a highly significant difference between the performance of both PTP and OTP participants compared with those of the control group. Comparing the performance of PTP and OTP participants, however, it was shown that the former got higher GRA scores than the latter. The results of the study indicate that presentation of grammatical structure prior to the presentation of the task can help IELTS Task 1 candidates get higher scores.

This study will reveal whether the mathematics teachers are aware of the reason why the concerned students have difficulty in learning mathematics and what measures they take if they are aware. In this context, the response to intervention (RTI) model, which is assumed to be effective for the students who need special education to gain and develop basic mathematical thinking skills, was applied and the views of the mathematics teachers on the extent of effect of this model. Student monitoring and structured interview forms constitute the data collection tools of the study. Findings show that the teachers are not aware of the reason why students who need special education have difficulty in learning mathematics. Teachers stated that the interventions under RTI increased the mathematics performances of students and that RTI offered new opportunities to students and was effective in increasing their academic achievement as they cannot show adequate attention to them in crowded classes. A RTI model approach is recommended to mathematics teachers for the students who need special education.

Crude oil price directly influence the economic conditions of world. This will impact on the airlines operating of aero engines that lead to turbo machinery to future fuel conservation requirements. The continuing effort to improve performance has created in improving the efficiency of current and future gas turbine engines. The fuel efficiency of an aircraft is dependent upon factors: the drag contributed by the air frame, the drag contributed by the engine and the efficiency of the engine itself. In this paper we discuss the latest advancement in gas turbine engines that improves efficiency of the engine from a unit mass of fuel that is burnt. Turbofan engine coupled with planetary gear increases speed of low pressure compressor by three to four folds of fan takes place inside the core of the engine, which includes the compressor, the combustion chamber, and the turbines that extract mechanical energy from the hot, expanding gases. By increasing the fan diameter & by improving the overall bypass ratios up to 12, the fuel efficiency of engine increases to double digit ~15% which is revolutionary in aero engine development history.

In this paper, we study the structure of cancellative quasi commutative ternary semigroups. In fact we prove that if T is a cancellative quasi commutative ternary semigroup, then (1) T is a primary ternary semigroup, (2) proper prime ideals in T are maximal, (3) semiprimary ideals in T are primary, are equivalent. We obtain a characterization for semipseudo symmetric ternary semigroups with identity in which proper prime ideals are maximal and also we characterize semipseudo symmetric semigroups without identity in which proper prime idels are maximal and globally idempotent principal ideals from a chain. Further we characterize quasi commutative ternary semigroups containing cancellable elements in which proper prime ideals are maximal. Finally we study the ternary semigroups containing, identity with either one of the following properties. (1) Every nonzero primary ideal is prime as well as maximal, (2) every nonzero primary ideal is prime, (3) every nonzero ideal is prime.

The purpose of this study is to find out whether Senior High school teachers integrate assessment in the teaching and learning of Mathematics. Acquisition of Scientific and Mathematical knowledge is based on effective use of assessing students’ learning outcome. Therefore, there simply cannot be any meaningful learning of mathematics without using assessment. In this study Assessment Practices means what teachers use assessment to do in the teaching learning of Mathematics. A sample of 160 teachers in two districts in the Central Region were used. This comprised of 92 Beginning and 68 Experienced teachers. Questionnaire was the main research instruments used in this study. The questionnaire was administered to 160 mathematics teachers in the two districts in the Central Region of Ghana. The design used in this study is a cross-sectional survey. Data collected from the respondents were analysed using frequencies, percentages means and standard deviations. It was found out that majority (136 out of 160) of the Senior High School mathematics teachers do not frequently integrate assessment in the teaching and learning of mathematics. They rather see assessment as an added on activity which mainly comes at the end of the teaching learning process. Based on the findings, it was recommended that Senior High School mathematics teachers be equipped to carry out assessment practices that will enhance students learning in mathematics.

The present study examines the risk model comparison, the conventional wisdom predicting bankruptcy, the Tehran Stock Exchange, with the curve and the ROC, is paid. In this study, the performance model risk, in the face of conventional wisdom predicting bankruptcy, with a comprehensive exam, and using a full database of companies listed on the main Tehran Stock Exchange between 2011 to 2014, with curve and the ROC, we tested. In this study, risk models are of two types. 1. The risk model based on accounting information, and (2) risk model based on market information. And traditional bankruptcy prediction models, as well as two types, 1. Z concession model, only the use of accounting information, and (2) provided that the claim based model, in equity, as an option to decide on assets looks. The population of this research, companies listed on the Tehran Stock Exchange. The population of this study, which is now number 342, 95 of them are bankrupt and the sample number, company number is 246, 67 of them are bankrupt. In this study, the software brings new 3, Excel and SPSS (spss) is used. The individual results of each test curve ROC (receiver operating characteristics), and the ROC suggests that the ability to predict bankruptcy risk models better than the traditional approach.

This paper discusses the body of knowledge about Holonic Approach to theoretically demonstrate how Holonic Production System (HPS) can be a convincing choice to overcome the problems of traditional production systems’ architectures. Today, enterprises are trying to find ways to manage the growing environmental complexity that is well described by Complex Systems Theory (CST). After the focus on the main problem regarding environmental complexity, the Holonic system and the Holonic Production System will be analyzed. The paper will focus the potential of HPS to adapt and react to changes in the business environment whilst being able to maintain systemic synergies and coordination through the holonic structure where functional production units are simultaneously autonomous and cooperative.