特呈岛陆地成年乔木资源的研究

对特呈岛陆地成年乔木资源进行调查与分析,结果表明,特呈岛陆地的成年乔木:第一类(胸径≥20cm)共1584株,隶属26科41属51个树种,优势树种突出,其中百株以上的树种有4种;第二类(胸径≥20cm与树高≥6m)共1445株,其中大乔木1株、中乔木368株、乔木1076株;第三类(树龄≥80a)30株,其中有古树3种共23株及古树后续资源7株,有胸径≥100cm的大树14株;第四类有二级国家重点保护野生树种樟树32株。建议调整古树后续资源规定标准为树龄≥50a,以加强成年乔木保护。     

气象因素对种猪繁殖性能的影响

1气温的影响1．1气温对公猪的影响成年公猪适宜的环境温度是18—20℃．若温度稍低,对公猪的繁殖性能影响不大,而高温对公猪影响较大。     

我的牛缘

儿时放牛识其形,成年效牛悟其性,而今画牛彰其魂,旨在弘扬牛精神.我家在太行山农村,记得在我七八岁的时候,家中有一头大黄牛.它体如山,力无穷,形容朴实,器宇轩宏.我叫它"黄哥",并主动承担起了放牛的营生,边放牛,边念书,与牛为伴,与牛为友,与牛结下了不解之缘,与牛共度了快乐的童年. 参加工作后,还常想起牛,常回忆起在牛背上唱歌、看书,拉着牛尾巴上山、过河的情景,并常领悟牛的品性,那种俯首孺子不逞强、纯良温驯时亦犟、劳瘁奉献不居功、不用扬鞭自奋蹄的精神,一直激励着我.在做工、参军、从政的生涯中,我以牛为师,以牛为鉴,对牛的感悟就又增添了很多.     

关于钻石的传说

世界上最大的宝石金刚石名叫"库利南",是1905在南非的一个矿里发现的。"库利南"重3106克拉,即621.2克,跟相当于一个成年男子的拳头。它纯净透明,带有淡蓝色调,是最佳品级的宝石金刚石。一直到现在,它还是世界上发现的最大的宝石金刚     

缙云县提前完成年度拆违任务

新建镇已拆违25004．09平方米,完成16669％,前路乡拆违2783．89平方米,完成185．59％,五云街道已拆违42315．78平方米,完成94．04％……全县“三改一拆”行动实施以来,各乡镇（街道）、相关部门认真贯彻落实县委、县政府决策,迅速行动,     

Distribution and ultrastructure of pigment cells in the skins of normal and albino adult turbot, Scophthalmus Maximus

The distribution and ultrastructure of pigment cells in skins of normal and albino adult turbots were examined with transmission electron microscopy (TEM). Three types of pigment cells of melanophore, iridophore and xanthophore have been recognized in adult turbot skins. The skin color depends mainly on the amount and distribution of melanophore and iridophore, as xanthophore is quite rare. No pigment cells can be found in the epidermis of the skins. In the pigmented ocular skin of the turbot, melanophore and iridophore are usually co-localized in the dermis. This is quite different from the distribution in larvae skin. In albino and white blind skins of adult turbots, however, only iridophore monolayer still exists, while the melanophore monolayer disappears. This cytological evidence explains why the albino adult turbot, unlike its larvae, could never resume its body color no matter what environmental and nutritional conditions were provided. Endocytosis is quite active in the cellular membrane of the iridophore. This might be related to the formation of reflective platelet and stability of the iridophore.     

成年原发性门静脉海绵样变性的CT研究

目的:探讨成年原发性门静脉海绵样变性的多排CT诊断价值及其发病原因。方法:对1例成人CTPV患者的临床资料进行分析并复习相关文献。结果:门静脉主干扭曲增粗、交织缠绕;门静脉左、右主干扩张并形成盲端;肝内门静脉分支增多,管壁欠光整并不均匀扩张及狭窄。结论:门静脉海绵样变性其CT表现具有特征性,CT检查对该病的诊断以及治疗方案的选择有重要作用。