时基

Floral organ determination is best explained by the ABCDE model postulated by genetic studies of Arabidopsis thaliana. Sepals are determined by A and E class genes; petals are determined by A, B, and E; stamens by B, C, and E; and carpels by C and E class genes. A, B, C, and E class gene lineages are known having duplicated several times during the evolution of angiosperms. One of the noted major duplication events occurred in the origin of the early angiosperms, leading to the formation of subgroups of B/C/D/E class. Another one occurred near the basal eudicots and gave rise to further subgroups in A/B/C/D/E class genes among core eudicots. The phylogenetic position of the family Buxaceae is located right where the second major duplication of ABCDE genes might have occurred, which is supported by multiple gene (nuclear 18S rDNA, chloroplast rbcL and atpB) phylogenetic analyses.

目前经由模式植物阿伯芥的研究，建花部器官决定基因的调控，即花萼由A、E 群基因共同决定，花瓣由A、B、E 群基因，雄蕊由B、C、E 群基因，而心皮由C 和E 群基因决定。A、B、C、E 四群基因在被子植物的演化过程中发生过次的复制事件，其中比较重要的一次发生在早期被子植物演化出之时，形成B/C/D/E 群基因的次系群；另一次复制事件则发生在真双子植物基群附近，形成仅於核心真双子植物的A/B/C/D/E 群基因之次系群。

AIM: To investigate the morphological changes of apoptosis in human colon cancer cell line SW1116 induced by 2 ［(3 carboxy 1 oxoprogy1) amino］ 2 deoxy D glucose.

目的：研究D 葡萄糖衍生物2 （3 羧基 1 丙酰氨基） 2 脱氧 D 葡萄糖诱导人结肠癌细胞SW1116凋亡时，其形态学的变化。

In no particular order of difficulty, here is a list of the complications facing the young Michelangelo as he approached a block of newly quarried Carrara marble in the late summer of l499, and prepared to embark upon the carving of his first pieta.

这就是年轻的米开朗基罗在1499年夏末走近一块新采的卡拉拉大理石准备开始雕刻第一座《圣母怜子像》时面对的一系列难题。有没有一首歌会让你想起我。。。

Hypogene high thermal or deep source epi-mesothermal condition and it is not only stressed the mantle source simply but also the crust-mantle;②in order to guid ore exploration better the artificial classification of uranium deposits should be broken and uranium ore-forming system strengthened;③much attention should be paid to searching the diabase-hosted rich uranium ore in strongly argillized cataclastic zone;④attention should be paid to the influence of basement of volcanic basin on the uranium ore formation that should be undstood both in feeling and theoretically through the ore propect process;⑤relation of red basin with uranium ore formation can be made clear from analyzing tectonics, paleo-climate and time and it is not only theoretically important but also helpful to uranium ore prediction;⑥crypto explosive pipe is an uranium ore, rich uranium ore host structure and it is the next goal for uranium ore exploration in east China.

摘要文章论述了华东火山岩型铀矿找矿值得重视的地质问题：①铀成矿既可形成于浅源浅成低温条件，也可形成于深源深成高温或深源浅成中低温条件，在强调深源时，不是简单地认为是幔源就可以了，还必须强调壳幔作用的地质过程；②打破人为的&类型&划分，加强&铀成矿系统&的研究，更好地指导找矿；③研究基性脉体与铀成矿问题应注意构造、岩石矿物成分、成因、蚀变与成矿3大问题，注意寻找泥岩化作用强烈的破碎辉绿岩脉中的富铀矿；④火山盆地基底对铀成矿的作用主要是提供铀源，将基底对铀成矿的影响从感性认识推向理性认识，有效地指导找矿；⑤红盆与铀成矿关系可以从构造、古气候及时间分析研究中得出结论，它不仅仅是一个理论问题，而且有助于铀成矿预测；⑥隐爆角砾岩筒是铀成矿、成富矿的重要储矿构造，是华东火山岩型铀矿找矿的新领域。

It is shown from experiment that the catalytical activity is the highest when the ratio of FeTSPC toγ-CD is 1. The inclusion model was formed between FeTSPC andγ-CD according to the simulated test by CS Chem 3D Pro.

研究发现铁酞菁和γ-CD的混合比例为1：1时具有较高的催化活性，并通过模拟计算证明四磺基铁酞菁与γ-CD形成了特定的包合结构。

Epoxycedrane was firstly synthesized at home and abroad from α-cedrene by epoxidation of hydrogen peroxide under the catalysis of ruthenium trichloride and pyridine-2, 6-dicarboxylic acid.

以三氯化钌和2，6-二羧基吡啶为催化剂，双氧水为氧化剂，时α-柏木烯进行环氧化反应合成环氧柏木烷。本合成方法在国内外尚未见报道。

But when Cephas was come to Antioch, I withstood him to the face, because he was to be blamed.

但是，当刻法来到安提约基雅时，我当面反对了他，因为他有可责的地方。

Leading an expe－dition on tile Chickahominy River, Captain Smith and his men are attacked by Indians, and Smith is taken prisoner.

这支队伍是由帕门基河的大王领导的，他们在分散搜索河流的转弯处时，在火堆边发现了罗宾逊和爱穆利，他们乱箭齐发，把这两个人杀死了。

Therefore, our data show that in cases when clear cell chondrosarcoma and chondroblastoma pose a diagnostic challenge, the presence of type II collagen in the extracellular tumour matrix significantly supports the diagnosis of clear cell chondrosarcoma and aids in distinguishing it from chondroblastoma.

我们的数据表明，在诊断透明细胞软骨肉瘤和成软骨细胞瘤受阻时，细胞外肿瘤基质中II型胶原的存在对于诊断透明细胞软骨肉瘤相当有帮助，并有助于和成软骨细胞瘤间的鉴别。

After Mr Bush was choppered into Baghdad, a bemused Mr Maliki was obliged to stand squirming alongside his beaming visitor, as pictures of president and stooge were flashed unhelpfully to Muslims in Iraq and around the world.

当布什先生乘坐直升机抵达巴格达时，满脸困惑的马利基不得不局促地站在他满面春风的到访者身边。总统与跟班的照片闪遍伊拉克以及全世界。这对于穆斯林人是毫无意义的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。