自然体験活動が児童・生徒の心理的側面に及ぼす影響 少年自然の家主催事業参加者の過去の自然体験活動の有無からの比較

Following the demonstration by Pangborn (1941) that lecithin and cardiolipin were the active consti- tuents in the "crude" lipoidal antigen employed in the sero-diagnosis of syphilis, Maltaner and Mal- taner (1943, 1944, 1945) and Brown (1943, 1944 a, b, 1946, 1947) determined the optimal proportion... View More