小体

With the increasing of transmiting current and reducing of the minimal discriminable voltage, the influence of geological interference becomes more evident, so it is very necessary to introduce feasible mathematical methods to direct and inverse calculation of TEM, such as ANN, GA. Via an experiment on a known-profile in a copper mine, it is validated that the flexibility of the system and feasibility of the interpretation software.

数据采集软件、后期处理解释软件的编制及解释精度问题由于发送电流的加大和最小可测电压的提高，在加大了勘探深度的同时，地质噪声和各种效应的影响将更加明显，从而对解释软件也提出了更高的要求，传统的数据处理解释软件不能满足要求了，因此有必要引入成熟的数学方法：如神经网络等，增加一维、二维的解释精度与速度，并对于特殊三维体作正演计算。

In the BC〓F〓 and BC〓F〓 generation of Yannong15×Thinopyron intermedium hybrid, 4 octoploids which had chromosome number of 2n=56 and could form 28 bivalent at PMC MI, 14 disomic addition lines which had chromosome number of 2n=44 and could form 22 bivalent at PMC MI; three monosomic addition lines which had chromosome number 2n=43 and had the chromosome configuration of 21Ⅱ+1Ⅰ at PMC MI, 1 substitution line which had chromosome number 2n=42 and could form 21 bivalent at PMC MI were selected by observation of mitosis in root tip cell and meiosis in pollen mother cell.

在烟农15与中间偃麦草杂交的BC〓F〓和BC〓F〓代中，通过根尖有丝分裂和花粉母细胞减数分裂中期Ⅰ观察选出4个2n=56，PMC MI染色体构型为28Ⅱ的八倍体小偃麦；14个2n=44，PMC MI染色体构型为22Ⅱ的双体异附加系；3个2n=43，PMC MI染色体构型为21Ⅱ+1Ⅰ的单体异附加系；1个2n=42，PMC MI染色体构型为21Ⅱ的异代换系。

Other three alien translocation lines referring to chromosome Lr.14 of L.racemosus were also induced via irradiated pollens.After irradiated by gamma raysof 1KR does,the pollens of T.aestivum-L.racemosus Lr.14 disomic addition lineswere used to pollinate wheat varieties"Yangmai No.5"and"Mianyang No.11".M1plants have pairing between wheat chromosomes and Lr.14 ofL.racemosus at PMCMI stage were self-pollinated,and the M2 seeds used to be Giemsa C-banded andfluorescence in situ hybridized.As the result,three alien translocation lines wereobtained and T12 was observed to have distal translocation chromosomes betweenLr.14S and a wheat chromosome segment(TW-Lr.14S·Lr.14L).T13 wasidentified to contain mostly-alien-translocation chromosome(TLr.14L·Lr.14S-W).T14 was proved to contain a translocation between Lr.14L and 6BS,with approximatebreakpoint at 6BS2.2 region, FL0.22 in the short arm of chromosome T6BL.6BS-Lr.14L.

用普通小麦-大赖草Lr.14二体异附加系经辐射处理过的花粉给扬麦5号和绵阳11号授粉，M1代植株进行PMC MI染色体配对分析和Giemsa C-分带，选出PMCMI小麦和大赖草染色体发生配对的植株进行自交，M2代经RTC M期染色体C-分带和原位杂交，鉴定出3个小麦-大赖草易位系，其中T12为由Lr.14大部分和一个小麦染色体片段组成的易位染色体(TLr.14L·Lr.14S-W)；T13含由Lr.14染色体绝大部分与小麦染色体的一个小片段组成的易位染色体(TLr.14L·Lr.14S-W)；T14易位系的染色体易位发生在小麦6BS2.2区和大赖草Lr.14L之间，易位断点在T6BL·6BS-Lr.14L易位染色体的FL0.22附近。

Results A dense accumulation of fos and jun-positive neurons exhibited in the PVN, SON and DG, and some of fos and jun-positive neurons were also present in other hypothalamus and hippocampus areas including parvocellular PVN, dorsomedial nucleus and lateral hypothalamic area.

结果 游泳应激结束后3h，室旁核和视上核及齿状区内可见密集深染的c-fos和c-jun阳性细胞，室旁核小细胞部，背内侧核等区域亦有疏密不一的阳性胞体。

Dosimetric study on dose perturbation in inhomogeneities for small beamlets has been a very intractable question in the field of tumor radiation physics at all times. The measured uncertainty and the complexity of the media, such as bone, lung, cavity and their boundaries, lead to the difficulty of this kind of problems.

小射野在非均匀异质组织中的剂量特性研究一直是肿瘤放射物理领域中一个难点问题，其原因在于测量的不确定性和体中骨头、肺、气腔中以及它们和组织交界处的复杂性。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

In aggregate, our smaller insurance operations produced an excellent underwriting profit in 2000 while generating significant float - just as they have done for more than a decade. If these companies were a single and separate operation, people would consider it an outstanding insurer. Because the companies instead reside in an enterprise as large as Berkshire, the world may not appreciate their accomplishments - but I sure do. Last year I thanked Rod Eldred, John Kizer, Don Towle and Don Wurster, and I again do so. In addition, we now also owe thanks to Tom Nerney at U.S. Liability and Michael Stearns, the new head of Cypress.

总的来说，其它规模较小的保险业务在2000年产生了可观的承保利益，同时一如过去十年来持续贡献大量的浮存金，如果把这些公司视为单一独立的企业，那么他们绝对可以称得上是一家经营绩效优异的保险公司，而因为这些事业隐身在Berkshire如此庞大的事业体中，外界无法理解他们的努力与成就，但至少我个人能够深深地体会地，去年我感谢过Rod、John、Don等人，今年则还要再加上美国责任险的Tom以及Cypress的新任主管Michael。

In aggregate, our smaller insurance operations produced an excellent underwriting profit in 2000 while generating significant float - just as they have done for more than a decade. If these companies were a single and separate operation, people would consider it an outstanding insurer.第 24 页共 56 页 www.buffettism.com 巴菲特研究中心 Research Centre for Buffettism Because the companies instead reside in an enterprise as large as Berkshire, the world may not appreciate their accomplishments - but I sure do. Last year I thanked Rod Eldred, John Kizer, Don Towle and Don Wurster, and I again do so. In addition, we now also owe thanks to Tom Nerney at U.S. Liability and Michael Stearns, the new head of Cypress.

总的来说，其它规模较小的保险业务在 2000 年产生了可观的承保利益，同时一如过去十年来持续贡献大量的浮存金，如果把这些公司视为单一独立的企业，那么他们绝对可以称得上是一家经营绩效优异的保险公司，而因为这些事业隐身在 Berkshire 如此庞大的事业体中，外界无法理解他们的努力与成就，但至少我个人能够深深地体会地，去年我感谢过 Rod，John，Don 等人，今年则还要再加上美国责任险的 Tom 以及 Cypress 的新任主管

On the base of review the research development in tissue culture and genetic transformation, Comparative analyses were made on the callus induction and embryogenetic abilities of anther and non-pollinated ovules of rubber tree. Fluorescence detection was implemented with the different in vitro material of Hevea brasiliensis.

本研究在综述了橡胶树组织培养及遗传转化研究进展的基础上，系统地比较了橡胶花药和未授粉胚珠愈伤组织诱导及体细胞胚胎发生能力，对橡胶树不同离体组织进行荧光背景检测，将在植物胚胎发育时期起重要作用的BBM基因导入橡胶树，对电激法转化游离小孢子细胞以及农杆菌介导花药愈伤组织进行初步探索。

We believe that CKLFSF8 is localized in early endosome, endosome recycling compartment and multivescular bodies in view of the colocalization between CKLFSF8 and LAMP1, a marker for late endosome and lysosome.

结合CKLFSF8与LAMP1的共定位情况，可以认为CKLFSF8定位于早期内体、内体循环小室和多胞体内。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。