Issue information for History Education Research Journal 18(2).

IN THAI ..................................................................................................... I ABSTRACT IN ENGLISH .......................................................................................... III ACKNOWLEDGEMENTS ........................................................................................... V CONTENTS .....................................................

Contents 1. Introduction 2. Soil acidity and its indices 2.1. Actual acidity. 2.2. Potential acidity. 2.3. Cation (positive ion) exchange capacity and saturation with bases. 3. Natural reasons for increasing soil acidification 3.1. Leaching regime. 3.2. Soil-forming rocks and plants. 3.3. The distribution of acid soils. 4. The reasons for anthropogenic acidification of soils. The phenomenon of ...

Objective: The standardized data may easily move within a network and connect to other systems without any time or geographical limitations. This concept is fundamental to the idea of the ubiquitous robot. Method: This paper discusses those definitions briefly including the approach of Samsung Electronics Co., Ltd (SEC). Here we present a ubiquitous robot S/W platform, AnyRobot Studio which cov...

............................................................................................................................ I SAMMANFATTNING ......................................................................................................... II PREFACE............................................................................................................................. III LIST OF P...

BACKGROUND Beef cows herd accounts for 70% of the total energy used in the beef production system. However, there are still limited studies regarding improvement of production efficiency in this category, mainly in developing countries and in tropical areas. One of the limiting factors is the difficulty to obtain reliable estimates of weight variation in mature cows. This occurs due to the inte...

A multimedia instruction that integrates different types of media is a way to maximize learning effectiveness, and three-dimensional lessons through a variety of multimedia will be able to offer a more realistic education as an innovative alternative to one-sided, lecture-oriented instruction. The growth of computer engineering has an extremely positive effect on early childhood education as we...

The present work is aimed at studying the adsorption capacity of powdered Fuller’s earth for the removal of ferri/ferrous impurities found in commercial grade sodium sulphide. The latter is not suitable for the manufacture of pharmaceutical grade chemicals and dye chemicals. The author has carried out experiments taking different dosage of powdered Fuller’s earth as an adsorbent in the aqueous ...