objective:the aim of this research is to identify common characteristics of invalid journals and to analyse iranian articles published in those journals.methodology; in this study, bibliometric methods are used. a checklist was used to collect information about journals included in the ministry of science, research and technology’s journals black list (october 2013 edition). journals’ websites ...

Mathematics is a science that plays an important role in various fields, including and technology. Therefore, as the times progress, economic problems exist everyday life become increasingly complex. By studying mathematics, these can be solved using linear programming. Linear programming way of solving optimization (maximizing or minimizing) by modeling them form objective functions constraint...

The article is dedicated to the study of history development popular science and scientific-methodical journals in Physics Mathematics, that were published distributed modern Ukraine late nineteenth – early twentieth century. One most authoritative among teachers high school students enthusiasts Mathematics period was journal «Bulletin Experimental Elementary Mathematics». As aim authors conduc...

the present article studies the appearnace of iranian authors in sci database for the 1993-1997 period. it tries to present an actual picture of scientific activities in iran and the world. for this purpose, scientific information of iranian origin in form of articles dealing with basic sciences, were extracted. irans position has been compared with the rest of the world. it was found that 0.1 ...

Conceptual understanding is one indicator of an expert in mathematics. important for students addition to procedural skills. Students who have a good conceptual will be able find solutions with new or different procedures, while do not only use standard procedures. Teaching the most thing process developing students' understanding. The teacher as learning designer classroom has role that must d...

This research aims to examine the overall on developing Android-based facilities in Indonesia. The method used is Systematic Literature Review read 68 documents obtained from journals accredited by Ministry of Education, Culture, Research and Technology Indonesia with keyword "android". study results show that junior high schools are most targeted, studied subject mathematics support 21st-centu...

introduction: websites of academic journals have an important role in communicating and providing services to researchers. the present study aimed to determine the number of incoming links of iranian journal of medical sciences websites. besides, it aimed to determine the rate of visibility of core websites based on these findings. methods: this descriptive study was performed using webometrics...