the least developed and developing countries constitute two third of the members the world trade organizations (wto). these groups of countries have different views and concerns on international trade issues. as far as development is concerned, they have different needs and their economic system is often weak and fragile and therefore, they need extra protection. the wto agreements contain spec...

[1] Iceland is a strong localized source of non-eruptive volcanic warming and cooling. Temperature trend maps show that this phenomenon is localized to an area of about twice that of Iceland. With altitude the area remains constant but the phenomenon weakens and changes sign upon passing through the tropopause. The effect’s magnitude implies a large positive feedback, according to a conventiona...

background: in this paper, paleoparasitological findings from rodent excrements ob-tained from chehrabad salt mine archeological site located in northwest of iran are demonstrated and discussed. methods : chehrabad salt mine archeological site located in northwest of iran, dated to the achaemenid (mid 1st mill. bce) and to sassanid (3rd cent. - 7th cent. ce) period, is a unique study area to in...

Introduction: A high concentration of fluoride causes health problems in man. How to remove excess fluoride from water is the objective of this project. The study focuses on an evaluation of the performance of activated bauxite mines in Yazd province in order to remove fluoride from drinking water. Materials and Methods: This study was an experimental one and conducted on synthetic samples a...

Doing large-scale genomics experiments can be expensive, and so experimenters want to get the most information out of each experiment. To this end the Maximally Informative Next Experiment (MINE) criterion for experimental design was developed. Here we explore this idea in a simplified context, the linear model. Four variations of the MINE method for the linear model were created: MINE-like, MI...

This article investigates the relationship between the exchange rate and non-oil trade balance in Iran between 1981 and 2014. A structural vector auto-regression model is built. The results indicated that the increasing effect of the real effective exchange rate worsens the non-oil trade balance in the short term. In contrast, the increasing effect of the real effective exchange rate improves t...

according to the recent literature, the expansion of intra-industry trade increases the intra-industrial excess job reallocation. based on lovely and nelson (2002), this study examined the hypothesis that marginal intra-industry trade has a positive effect on the excess job reallocation in iranian industries. therefore, we have employed a panel technique for iranian manufacturing industries at ...

We consider extensions of unital commutative rings. We define an extension R ↪→ S to be a p-extension if every principally generated ideal of S is generated by an element of R. Examples are plentiful and localizations of regular multiplicative sets are p-extensions. We develop the theory of pextensions.

The chemical and physical composition of the feldsparquartz sand-ore differ from location to location in a given open pit mine mine and the utilisation of the raw-ore, as well as its resale value will depend on these properties. Thus. a very important aspect of the operation is to determine quickly and accurately the properties of the sand at a given location. Laboratory methods are accurate bu...