银漂色位移染料性能的研究

本文对几种银漂染料的色位移和复色性能与其分子结构的关系进行了研究。结果显示,以N-苯甲酰化J-酸、G-酸、变色酸为偶合组分的染料具有较好的位移和复色性能,而以R-酸、N-酰化H-酸等为偶合组分的银漂染料性能较差。位移染料M-16、C-20的初步涂布应用表明,其样片感光度分别提高了3.8和6.3倍。

Status quo and Major Causes of Traditional Sacred Natural Sites in Xishuangbanna Prefecture

In the research, sacred natural sites in the areas where Dai people, Hani people, Blang people and Zhuang people live mainly surveyed, covering 819 natural villages, 152 village committees and 31 towns. Presently, the area of sacred natural sites is only 1% of that in 1957 and the reduction of area is mainly caused by concept weakening, population increasing and economic development, as well as historical factors. Hence, it is recommended to strengthen management on sacred natural sites, in terms of formulating village rules or agreements and strengthening promotion.

双腔埋藏式心脏转复除颤器心房抗心动过速起搏终止室上性心动过速一例

患者男性,48岁,突发心悸1 h,埋藏式心脏转复除颤器(ICD)判定为室性心动过速(VT),发放抗心动过速起搏(ATP)治疗后窦性心律不能维持,用程控仪调出腔内图后诊断为室上性心动过速(SVT),予心房ATP后恢复窦性心律。随后调整ICD程控参数,随访至今未再发生ICD不恰当治疗,提示对于无房室分离的宽QRS波心动过速,ICD鉴别SVT与VT较为困难,存在误判的可能,需结合腔内图的房室一致性等图像特点以明确诊断,并及时调整ICD程控参数和治疗模式,以避免不恰当治疗的发生。

祖国妈妈，我送您一颗心

您是一个平凡的母亲．让我穿上温暖的衣服，吃上可口的饭菜：您也是一位伟大的母亲给了我一张舒服的床，每天甜甜地进入梦乡。 我是娇嫩的幼苗，您就是那茂密的森林，给了我一个温馨而宽广的家我是自由的小鸟，您就是那无边的蓝天，让我有无限飞翔的空间。