宁夏家畜“猝死症”调查及综合防制的研究(初报)

１９９１～１９９５年宁夏回族自治区１３个县（市）发生家畜“猝死症”，经流行病学调查、病理剖解检查以及对病原微生物分离和微量元素监测，并通过诊断性防制的研究，初步调查结果表明，发生在我区的家畜“猝死症”是由魏氏梭菌引起的肠毒血症为主因，硒缺乏是家畜猝死的诱因之一。     

Nuclear Terrorism and International Prevention Regimes

The term ＂nuclear terrorism＂ refers to terrorists who are engaged in nuclear proliferation activities for terrorist attacks. At present, nuclear terrorism poses a growing threat to international security. It is, therefore, a pressing need for the world community to make utmost effort to prevent and eliminate this threat.