Bianchi Type-II, VIII &IX Perfect Fluid Cosmological Models in Brans Dicke Theory of Gravitation

Field equations in the presence of perfect fluid distribution are obtained in a scalar tensor theory of gravitation proposed by Brans and Dicke[1] with the aid of Bianchi type-II, VIII & IX metrics. Exact prefect fluid Bianchi type- IX cosmological model is presented since other models doesn’t exist in Brans-Dicke scalar tensor theory of gravitation. Some physical properties of the model are also discussed.

新生儿血友病七例

目的探讨新生儿血友病的临床特点及诊治经验。方法选择本院新生儿重症监护病房2010年4月至2012年3月收治的新生儿血友病患儿,回顾性分析其临床特点及诊疗过程,并复习国内外相关文献。结果研究期间收治的7例新生儿血友病患儿均为男性,有出血表现,首次出血日龄平均3.7天,2例有明确血友病家族史。3例入院时有休克,出血部位包括头颅血肿、颅内、皮下、肌肉、肾脏出血等。7例患儿活化部分凝血活酶时间均延长,凝血酶原时间、血小板计数等正常,5例因子Ⅷ促凝活性降低诊断血友病A,2例因子Ⅸ促凝活性降低诊断血友病B。入院后予对症治疗,确诊后,血友病A予以静脉输注Ⅷ因子,血友病B予以凝血酶原复合物。6例好转,1例家长放弃。结论新生儿期发病的血友病多起病急,对有出血表现者,尽早进行血友病筛选及确诊试验,以提高该病在新生儿期的诊断率、改善预后。