向性

METHODS: After isolated the PBMCs and blood-plasma from adult human peripheral blood by Ficoll-Hypaque centrifugation, the PBMC culture procedure with or without the self-blood -plasma was applied to polarize T cells in vitro , these cells were polarized by PHA(20 mg/L),non-PHA respectively.

用Ficoll-Hypaque梯度离心法分离出正常成人抗凝外周血单个核细胞和血浆，将PBMC置于含或不含有自身血浆环境中，并在植物血凝素(PHA ，2 0mg L)的刺激下进行培养，培养 2 4、48、72h后收获细胞，分别用双色免疫荧光标记，以流式细胞术对CD4+ T细胞表达表面分子CCR3、CCR5进行分析。结果：CD4+ T细胞受自身血浆和PHA刺激后向Th1 Th2两个方向极化，2 4、48、72h后极化率分别达到(13 2 8± 1 5 9)%(12 70± 1 6 5 )%、(17 19± 1 0 3)%(17 5 0± 1 30 )%、(19 49± 2 87)%(18 5 8± 1 49)%；而只有PHA刺激的极化率很低，两组有显著性差异(P 0 1)；Th1∶Th2之比约等于 1。

Inwheat intercropped with soybean not only N situation could be improved butalso P situation could be.2In intercropping,the pH of soybean rhizospherewas decreased by increasing the R-Apase activity,which could decelerate thetransforming and fixing P fertilizer.3In both monoculture and intercroppingsystem,the soil pH of rhizosphere was affected by cropping system at two Plevel which only 0.1-4mm distance from the root surface,but the effect of S-Apase activity in the rhizospher soil by cropping system was less than3mm.In effect,the rhizosphere P was really available nutrient,and applyingP to rhizosphere was effective ways to reduce the P nutrient competition.4Inwheat/soybean intercropping,the peak stage of reduction ability of roots wasthe same as that of the root growth,so that the time compensation appearedin intensity of nutrient absorption.

间套作大豆、小麦、玉米根系Apase的差异又反映出大豆利用土壤磷的潜在能力最大，而玉米最小，可见禾谷类的小麦与大豆间套后不但能改善小麦的氮素营养状况还使磷素营养也得以好转。2）间套大豆根际pH值的下降，导致磷肥施入土壤后形成〓-P的比例显著提高，转化成〓-P等难溶性磷减少，说明间套的大豆能减缓肥料磷在土壤中的转化和固定，减少磷素向无效化方向转化。3）复合群体根际土壤pH值的影响一般只发生在0.1-4mm的根际微区，而土壤磷酸酶的影响供磷与否在距根表3mm以外都无多大差异，说明根际磷才是真正有效磷，根际施磷是解决磷素竞争的有效途径。4）。

The relationship between reduction potential of the oxides and the corrosion resistance of cold-rolled steel sheet was revealed.

在冷轧钢板退火过程中，钢中的锰、硅等元素会向钢板表面迁移，与环境中微量的氧化性气体发生反

According to CorpWatch and even Wikepedia, DynCorp International provides training for police forces worldwide, is the primary "private security force" in Iraq and provides top security for the CIA's extensive poppy fields in Afghanistan, provided the security for New Orleans following Hurricane Katrina, is responsible for patrolling the entire U.S./Mexican Border, performs "essential services" in Colombia to known drug cartels, and of course is deeply involved in the international "sex slave" trade so vividly portrayed in the recent movie "Taken" starring Liam Neeson.

根据&企业观察&甚至是&维基百科&，德阳国际为世界范围的警察提供训练；是伊拉克主要的&私人保安部队&；为CIA在阿富汗的广泛的罂粟种植园提供一级安保；在卡特里纳飓风后为新奥尔良提供安保；负责在整个美国／墨西哥边境巡逻；在哥伦比亚向臭名昭著的毒品卡特尔提供&核心服务&；并且当然，深深地卷入国际&性奴&贸易，后者在近期影星利亚姆尼森出演的电影《攫取》中得到如此生动地刻画。

Mardi Gras means "Fat Tuesday" and of course is celebrated on that day of the week.

今年3月8日，我们试图以最清晰明了的手法、从不同侧面向您传递这样一个信息：国际妇女节是全世界所有女人的节日，只要您在性别上可以被界定为&女&性，您就有权利和义务来接受来自各方的祝福。

But I bet you can't tell me what it smells like in the Sistine Chapel.

他和教皇…性向，所有作品，对吗？

The main objective of the project is to strengthen the use of Chinese and non-governmental organizations and non-governmental organizations, civil society organizations through the use of the unique power to fill vacancies and AIDS Control Project in the expansion of existing coverage to the most vulnerable and hard-to-reach populations to provide the necessary Prevention, treatment and other support services.

项目的主要目标是利用并加强中国民间组织以及非政府组织的能力，通过利用民间组织的独特力量来填补空缺并扩展现有艾滋病控制项目的覆盖面，向最脆弱人群和难以接触的人群提供必要的预防、治疗以及其他支持性服务。

The measured brightnesses of half a billion stars have been combined into colors representing three distinct wavelengths of infrared light: blue at 1.2 microns, green at 1.6 microns microns, and red at 2.2 microns.

这2mass形象，涵盖领域大约10 × 8度（约领域你的拳头举行于手臂的长度），揭示了众多的，否则隐藏星级，穿透性各种方式向中央星簇的银河。

By using global reanalysis data from NCEP/NCAR,the durative of a floating dust over Beijing during 7-10 in April of 2006 was analyzed.It was found that the impact systems of the floating dust weather were West Siberia cold eddy,Okhotsk warm high and Tibetan Plateau high ridge at the level of 500 hPa;the dry-cold air at the level of 700 hPa transferred to Beijing ceaselessly,and the cold advection and baroclinic instability were strong,the gale and dust storm occurred in the strong cold advection area;the weak instability stratification in surface layer and mid-low level in the south of North China resulted in weak ascending air flow,then transported dust particles to Beijing depending on the easterly wind in front of the surface low pressure.

文章摘要：使用NCEP/NCAR再分析资料对2006年4月7-11日北京浮尘天气过程的持续性进行分析，指出此次浮尘天气过程主要受500 hPa西西伯利亚冷涡、鄂霍次克海暖高压以及青藏高原高压脊影响；700 hPa有干冷空气不断向北京地区输送，冷平流和斜压性都很强，大风和沙尘暴发生在强冷平流区域；由于华北南部地区近地面至中低层存在弱的不稳定层结，容易产生弱的上升运动。

We introduce an accurate online-learning support vector machine algorithm, including incremental and decremental algorithm, which efficiently updates a trained regression function whenever a sample is added to or removed from the training set.

本文充分利用支撑向量机解的稀疏性并结合KKT条件，当向训练样本集中添加新样本时，调用&递增&算法修改原有回归函数来得到新回归函数；当从训练样本集中剔除旧样本时，调用&递减&算法修改原有回归函数得到新回归函数，即在线学习方法。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。