مجله پویش در آموزش علوم پایه
پیاپی 1 (زمستان 1394)

In this paper the goal is to investigate the simultaneous effects of laser radiation and presence of hydrogenic donor impurity on the linear and third order nonlinear optical properties of a spherical quantum dot. Hydrogenic impurity is placed at the center of quantum dot and the system is considered under the effect of a laser radiation. we obtain the energy eigenvalues and corresponding eigenfunctions using finite element method.also we investigate the effect of different incident optical intensity,dot radius and laser field amplitude on the linear and third order nonlinear optical properties.the result are shown that by increasing intensity optical properties will deacreas also by increasing dot radius and laser field optical properties will shift to low energies.also we investigate the effect of different incident optical intensity,dot radius and laser field amplitude on the linear and third order nonlinear optical properties.the result are shown that by increasing intensity optical properties will deacreas also by increasing dot radius and laser field optical properties will shift to low energies.

Improved burns Fyprvplast of factors, including inflammatory cells and keratinocytes, but the most important factor affecting the impact of the burn to prevent infection, the majority of deaths occur as a result of burns due to infection in burn and entry Infection is blood flow can result in the manufacture of drugs to improve the treatment of burns and consider taking Bgyrd.pzhvhsh show that Mvmnayy proficiency effect on the growth of Pseudomonas Yrvzhynvaz the most important causes of infection The wound is different in many years of herbal drugs and in some cases were considered the only treatment available materials are used in the pharmaceutical industry. This study compared the effects of Mvmnayy (Shilajit) and silver sulfadiazine ointment burn wound healing in rats has been investigated. The results showed that the recovery Mvmnayy singe in mice showed accelerated. It is also useful to Pmadsvlfadyazyn Mvmnayy impact on improving singe or application. In order to generalize the findings of this research on human subjects offer that clinical trials be performed prior to its use and understanding all possible mechanisms, such as the effect on Sntzklazhn Mvmnayy, increase oxygen supply, an increase of new vessels and fibroblast Filtration takes the position burns.

After the failed experiences of various countries to achieve economic development, sustainable development models that coordinate development capacity and definite environmental requirements were discussed. In these models, the role of human resources aware of environmental issues and committed to protecting the environment is a very (significant) factor. One of the manpower training platforms is science education.In this study, through analyzing written & online sources over the past 20 years and processing the data gained from them, environmental practices that are instrumental for students in understanding environmental concepts & content have been proposed. These techniques include web-quests, social simulation and educational games in the virtual media, to teach knowledge and attitudes related to the environment. Learning cycle instructional model provides appropriate structure for instruction of environmental science units. This approach begins with elicitation of learners' ideas. These ideas will be exposed to evidence from activities and after interaction with social and physical spaces, by reflection and comparison between initial ideas and argumentation, new concepts emerge.

This aim the use of cartoon characters in mathematics education at primary education level aimed to reveal theviews of teachers. The qualitative research design is used in this study. The research data was created as a result of surveys to teachers who work in primary schools in North Cyprus. The data are presented into categories. As a result of this study is the power of sanctions on children cartoon characters and teacher opinions has emerged that cartoon characters for the education can be adapted to direction of increasing student achievement in mathematics lesson.In the middle of 20th century, emerging of new technologies has reached the power to change the world conditions(Ağaoğlu, 1989; Tuncay & Uzunboylu, 2010). These technological advances in the world, the development ofeducation has become a priority (Tas, 2004).Besides being a science of mathematics, including problems in daily life are important devices that can beused. As stated in the word “problem” includes numerical problems as well as other problems that may confront inlife as general. So that teaching of mathematics’ behaviors aimed to gain which should include all of the educationallevels (Baykul, 2001).

Along with the development of science in various fields, incremental changes in the content and methods of teaching and learning has been achieved. The traditional method of teaching and transmission of knowledge from teacher to student, giving way to new approaches (in which student learning plays a major role.) Is given. But in most Iranian schools still teach the traditional method is actually a set of concepts and data transmission from teacher to student. (Such as filling an empty glass), on the other hand the content of the science curriculum of training programs similar There are many other countries, but it seems that some of our students' poor academic performance compared with their peers in other countries, mainly due to inefficient methods of teaching and learning.In this article we are going to review four educational practices, examples of active teaching-learning methods that lead to deep learning materials for students, as well.

In the present study, with review some parts of the book "Helping Children Learn Mathematics" written by Robert Reys and translated by Masood Norozian, we want to answer to this question "how much this book can be useful as a source for teaching the foundations of mathematics education for the students of primary education?" For this purpose, we compared some parts of the book with the ninth edition of the original version that we have available. In addition, based on the experiences gained from teaching this book and study other sources, we try to present some recommendations for eliminating of defects of the book. Finally, we found that by applying some changes, this book can be a good source for teaching the foundations of mathematics education for the students of primary education. Especially if the eleventh edition of the book is translated with respect to the reforms mentioned in the article, provided a more up to date source.