1. 부동산시장의 개념
부동산시장(不動産市場)은 여러 가지 개념으로 파악되고 정의될 수 있으나, 본 글에서는 "부동산시장을 부동산권리의 교환(exchange), 상호 유리한 교환으로서의 가액결정, 경쟁적 이용에 따른 공간분배, 토지와 공간이용의 패턴결정 및 수요와 공급의 조절을 돕기 위하여 의도된
of CO2 concentration 250ppm
※ Recently, CO2 concentration soaring 400ppm
• 1st Biofuel Generation : Potato, Cone, Sugar cane
• 2nd Biofuel Generation : Wood Pieces, leaves
• 3rd Biofuel Generation : Seaweed, Microalgae
Lack of field → Not appropriate with Grain
Surrounded by Water on Three sides → Algae
Growing Short period
Raised up with High Techni
US’s strategy toward Northeast Asia
For many centuries, international order has been moving by the West, and West-oriented. However, due to the increase of importance on the Asia-Pacific region, the international order is focusing to this region gradually. In the 21st century, this region is facing confusion from its transition period and increase of uncertainty. The reason is that, although t
of the reproductive organs and sexual genitalia and the development of secondary sex characteristics.
2. Physical changes in adolescence
①The growth spurt
The adolescent growth spurt affects virtually the entire body including most aspects of the skeletal and muscular structure. However boys and girls grow differently during this period. Boys’ shoulders get relatively wider, and their
신체적․심리적 측면에서 살펴보면 다음과 같다.
1) 노화(senility) 및 갱년기(climasteric)증상
신체적인 모든 기능이 저하되는 생리적 변화와 더불어 성 능력의 감소, 피로감, 집중력 감소 등 갱년기 증세를 경험하면서 신체적인 변화가 심리적으로 상실감을 가져와 성의 의미와 의욕을 잃고 열등감