负

It is also found that the level of IL-18BPa has a negative correlation with PASI score. This finding indicates that IL-18BPa as an inhibitor decreases in the plasma of psoriatic patients.

我们既往的研究发现银屑病血清中存在细胞因子异常，本文的研究发现银屑病患者血浆中IL-18BPa的浓度比正常人减少，进行期血浆中的浓度最低，退行期血浆中的浓度与正常人相近，与银屑病PASI评分呈负相关性，说明在银屑病外周血中存在抑制因子IL-18BPa的下降，IL-18/IL-18BP负反馈环路的异常，使Th1反应增强，可能在银屑病的发病机制中起到重要作用。

The motor-nerve conductive velo- city and the action potential voltage correlated negatively with press time and pressure levels. The action pote- ntial voltage correlated positively wi- th the motor-verve conductive veloci ty.

结果表明：受压后运动神经传导速度与动作电位电压呈正相关：压力与运动神经传导速度和动作电位电压呈负相关，持续压力下，压迫时间与运动神经传导速度和动作电位的电压呈负相关。

ResultsNo significant changes of NAA/Cr, Cho/Cr and NAA/Cho ratios were observed between the left and right precentral gyrus, nor between the male and female.

结果不同侧别和不同性别之间的NAA/Cr、Cho/Cr和NAA/Cho值均无显著性差异；NAA/Cr与年龄低度负相关，Cho/Cr与年龄低度正相关，NAA/Cho与年龄呈中度负相关。

The reseach on activity changes of SOD, POD and CAT during the somatic embryogenesis of Y35 showed:(1) The activty of SOD was from 52.98 to 133.20 U·g-1·h-1, and remained a rising trend after early single embryo forming, this revealed that SOD might be positively correlated to the differentiation of embryogenic cell and the development of somatic embryo.(2) The activty of POD was from 0.05 to 0.50 U·mg-1·min-1, ascended firstly and desceded later, and was highest in embryogenic callus and lowest in late single embryo , this revealed that POD might be positively correlated to the division and differentiation of proembryo mass, while negatively correlated to the development of PEMⅢto late single embryo.(3) The activty of CAT was from 0.86 to 2.81 U·mg-1·min-1, showed an up-down-up trend, reaching to the highest peak at the time of early embryo formating and decreasing to the lowest at the time of early cotyledonary embryo formating, this revealed that CAT might be positively correlated to the development of early single embryo, while negatively correlated to the formation of middle single embryo and early cotyledonary embryo.The changes in activty of SOD, POD and CAT indicated these three antioxidant enzymes coregulated the differentiation and development of embryogenic cells during Larix somatic embryogenesis.4. Differentially expressed cDNA libraries of the stages of proembryo mass and somatic embryo maturation were successfully constructed by suppression subtractive hybridization.

对Y35体细胞胚胎发生过程中抗氧化酶活性变化的研究显示：(1)SOD活性在52.98~133.20 U·g-1·h-1之间，并在早期单胚形成后一直保持上升的趋势，表明其与胚性细胞的分化及体细胞胚的发育均具呈正相关；(2)POD活性在0.05~0.50 U·mg-1·min-1之间，呈现出先下降后升高的趋势，在胚性愈伤组织中最高，而在后期单胚形成时降至最低，表明其与原胚团的分裂和分化呈正相关，但与PEMⅢ向后期单胚的发育呈负相关；(3)CAT活性在0.86~2.81 U·mg-1·min-1之间，表现出升-降-升的变化趋势，在早期单胚形成时升至最高，在早期子叶胚形成时降至最低，表明其与早期单胚的发育呈正相关，而与中期单胚和早期子叶胚的发育呈负相关。

Propionic acid from ruminal microbes fermentation is a vital glyconeogenesis substrate for prevention of negative energy balance.

奶牛围产期能量代谢的特点是能量负平衡，瘤胃发酵产生的丙酸是奶牛糖异生供能的主要底物，对预防奶牛能量负平衡具有重要的意义。

These results also provedthe presence of the same acute phase response profile in amphioxus,as observed ineutherians.Thus it pushed the evolutionary existence of the eutherian-like acute phaseresponse back to the protochordate lineage.Fourthly,we determined CAs,including epinephrine、norepinephrin anddopamine,with HPLC method optimized after LPS challenged amphioxus.Theresults demonstrated that E,DE and DA are present in amphioxus humoral fluid,andE was firstly found in amphioxus.

第三，我们用生物化学方法，选取海洋中广泛存在、众多水产动物的常见致病菌-溶藻弧菌作为天然反应原感染文昌鱼，从另外一个角度探讨并丰富文昌鱼体液中的八种炎性蛋白的急性时相反应，结果显示，与LPS感染文昌鱼相比，六种正APPs的浓度变化幅度相对较小，曲线相对平缓，但仍然呈正急性时相反应，蛋白电泳也证实了这一点；而二种负APPs：RBP和白蛋白(Albumin，ALB)浓度实验周期内总体呈下降的趋势，呈负急性时相反应，结论与上述LPS相同。

Objective To study the mechanism in which the personality, copying style influenced survival time by changing immunity function in the patients with gastric cancer Methods The Minnesota Multiphase Personality Inventory, coping style questionnaires and immunity function were measured in patients with gastric cancer on late stage, gastric cancer patients with longer survival time, and normal control Results Psychopathic deviate, social introversion subscale scores of MMPI in groupⅡ were significantly lower than that in the other two groups ( P 05) Statistical difference were found between groupⅠand groupⅡ in problem saving factor and help seeking factor of CSQ ( P 05) Natural killer cell level in groupⅡ was significantly higher than in groupⅠ( P 05) There was negative correlation between the NKC and depression, psychopathic deviate, paranoia, psychasthenia, schizophrenia subscale scores of MMPI, there was positive correlation between NKC and SP, coping type in patients with gastric cancer Conclusion The gastric cancer patients with longer survival time are more extroversive and have more mature coping styles Their NKC level is relatively higher The results may be advantageous to improve the prognosis of gastric cancer

作者中文名：王健；邹义壮；唐丽丽；李杰；张东；金山；刘娟摘要：目的研究胃癌患者的生存期与个性特征、应付方式等心理因素，以及免疫功能的关系。方法对胃癌晚期患者、胃癌较长生存期患者及正常健康人分别进行明尼苏达多相个性测验、应对方式问卷、免疫功能测试，并做相关分析。结果(1)MMPI：胃癌Ⅱ组人格障碍评分(42.0±10.5)及社会内向评分(42.2±11.6)，低于其他两组[胃癌Ⅰ组为(49.3±11.2)分和(48.3±9.4)分，对照组为(48.6±10.9)分和(39.9±11.5)分；P均＜0.05]；(2)CSQ：解决问题和求助因子分，胃癌Ⅰ组[分别为(0.68±0.27)分和(0.42±0.18)分]均低于胃癌Ⅱ组[分别为(0.82±0.18)分和(0.65±0.21)分；P＜0.05和P＜0.01]，胃癌Ⅱ组更多采取成熟的应对方式；(3)自然杀伤细胞：胃癌Ⅱ组水平(21.4±9.2)高于胃癌Ⅰ组[(14.2±8.8)；P＜0.05]；而NK细胞水平与MMPI的抑郁(r=-0.35)、人格障碍(r=-0.39)、偏执(r=-0.29)、精神衰弱(r=-0.30)及精神分裂(r=-0.30)等量表呈负相关，与CSQ的解决问题因子(r=0.35)及应付方式类型(r=0.34)呈正相关。结论与胃癌Ⅰ组比较，胃癌Ⅱ组更为外向，负性情绪较少，更多采取成熟的应对方式，其NK细胞水平较高，对胃癌的预后产生了积极的影响。

Halogenated aromatic compounds with great q〓(the most negative net atomic charges on an atom of the molecule), ENC (electron-nuclear attraction energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), qc (thenet atomic charges on the carbon atom of the weakest carbon-halogen bond) and E〓 tend to be reductively dehalogenated slow, while halogenated aromatic compounds with high values of △E (the difference of front-line orbital energy), EEC (electron-electron repulsion energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), Mw, q〓 and α tend to be reductively dehalogenated fast.

卤代芳烃化合物的整个分子的最负的原子净电荷，键序最小的碳卤键中碳原子的单中心项电子-核吸引能，该碳-卤键上碳原子的净电荷和E〓与该卤代芳烃化合物还原脱卤的速率常数负相关；而前线轨道间隙能，键序最小的碳卤键中碳原子的单中心项电子-电子推斥能，Mw，q〓和α与该卤代芳烃化合物还原脱卤的速率常数正相关。

A brief introduction to domestic research of negative refracting materials is given, and two possible routes to negative refracting via functional polymeric materials are suggested.

本文还简要介绍了国内负折射材料的研究现状，提出了利用高分子功能材料实现负折射的两种可能的途径。

Methods Based on the model of round axial symmetry turbulent jet, three simplified categories of the mitral regurgitant jet were proposed.

方法据圆形轴对称自由紊动射流模型，利用超声成像模拟软件FieldⅡ模拟简化的二尖瓣反流的三种情况：①完全正向射流；②中心为正向射流，边缘为负向反流；③上半部分为正向射流，下半部分为负向反流。

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％。