活化

Activation of heavy calcium carbonate with aluminates and other modification agents was studied, and the activation degree of calcium carbonate and the viscosity of its mixture with paraffin were characterized.

研究了铝酸酯等复合处理剂对重质碳酸钙的活化处理方法，对制得的活性重质碳酸钙的活化度及石蜡油/碳酸钙混合物的粘度行为进行了表征。

Objective: The purposes of this project include: to explore the activated basophils expression ratio of acute, chronic urticaria patients and healthy controls peripheral blood.

目的：分析急慢性荨麻疹患者外周血中活化的嗜碱性粒细胞的数量，以及在受到不同变应原刺激之后嗜碱性粒细胞的活化程度。

The topics include: development of mast cells and basophils, IgE-mediated activation of mast cells and basophils, mechanisms of exocytosis, non-IgE-mediated activation and modulation of mast cells and basophils, description of mediators including those that are lipid-derived, proteases, proteoglycans and cytokines.

文章讨论的课题包括：肥大细胞和嗜碱性粒细胞的发育，IgE介导的肥大细胞和嗜碱性粒细胞的活化，胞吐作用的机制，非IgE介导的肥大细胞和嗜碱性粒细胞的活化和调节，这些课题中涉及到的介质包括：脂类衍生物，蛋白酶、蛋白聚糖和细胞因子等。

Furthermore, these processes have low selectivities but high product costs. In the industrial production, the technologies of alkanes'activation are mainly making the alkanes transform to petrol-chemical products directly with the help of transition metal catalyzers.

在工业生产方面，烷烃活化技术主要是用过渡族金属催化剂将比较便宜的烷烃原料直接转变为石化产品，寻找低温高活性、高选择性、稳定性好、抗积炭能力强的工业化催化剂，一直是实验研究的热点，过渡金属催化剂在烷烃的活化研究中扮演着重要的角色。

Results The activation of NF-κB, proliferation response, and expression of IL-4 and I L-5 mRNA and protein in T lymphocytes stimulated by PMA were significantly hig her than those of their blank control (P.01), while those indexes of T l ymphocytes stimulated by PMA and PDTC simultaneously were significantly lower th an those stimulated by PMA alone (P.01). The apoptotic index of T lympho cytes stimulated with PMA were significantly lower than that of their blank cont rol (P.01), and the apoptotic index of asthmatic guinea pig T lymphocytes stimulated with PMA and PDTC simultaneously were significantly higher than that stimulated by PMA alone (P.01). The significant positive correlations w ere found between the activation of NF-κB and the proliferation (r=0.64, P.001), and the expression of IL-4 and IL-5 mRNA and protein of T lymph ocytes, respectively (r=0.55-0.68, P.001). There was also signific ant negative correlation between the activation of NF-κB and apoptosis of T l ymphocytes (r=0.62, P.001). Conclusions NF-κB may participate in the signal conduction of PKC regulated proliferation, apoptosis and expression of IL-4 and IL-5 of T lymphocytes in asthma.

结果加入PMA培养的哮喘组T淋巴细胞NF-κB的活化、细胞增殖反应、IL-4和IL-5的mRNA和蛋白质的表达均显著高于其空白对照(P.01)，而同时加入PMA和PDTC培养的哮喘组T 淋巴细胞以上指标均显著低于只加入PMA培养的哮喘组T淋巴细胞(P.01)；加入PMA 培养的哮喘组T淋巴细胞的凋亡指数显著低于其空白对照(P.01)，而同时加入PMA 和PDTC培养的哮喘组T淋巴细胞凋亡指数显著高于只加入PMA培养的哮喘组T淋巴细胞(P 。01)。T淋巴细胞NF-κB的活化与增殖反应呈显著正相关(r=0.64，P.00 1)，与IL-4和IL-5的mRNA和蛋白质的表达也均呈显著正相关(r=0.55-0.68，P 。001)，而与凋亡指数呈显著负相关(r=-0.62，P.001)。

Upon FGF binding, specific membrane receptors dimerize and autophosphorylate, then activate several downstream signaling pathways including Ras-MAPK.

FGF通过结合细胞表面的FGF受体，使其二聚化并自体磷酸化，活化后的FGF受体具有酪氨酸激酶活性，进而活化胞内下游多条信号通路。

According to the underground pressure theory, which takes stratum movement as key matter, the reactivating mechanical mechanism of a fault in mining floor under the action of underground pressure, and the mechanism of the interaction between pressure water and rock during the fault reactivation are studied.

根据&以岩层运动为中心&的矿山压力控制理论，研究了采场断层在矿山压力作用下活化的力学机制，以及断层活化过程中承压水和岩石相互作用的机理。

According to the underground pressure theory which takes stratum movement as key matter, the reactivating mechanical mechanism of a fault in mining floor under the action of underground pressure, and the mechanism of the interaction between pressure water and rock during the fault reactivation are studied.

基于大量的煤矿井突水案例，总结了中国煤矿井突水的一般规律及肥城煤田矿井突水的特点。根据&以岩层运动为中心&的矿山压力控制理论，研究了采场断层在矿山压力作用下活化的力学机制，以及断层活化过程中承压水和岩石相互作用的机理。

Many studies demonstrate that Aβ fibrils can activate platelet aggregation.

另一方面有研究指出，Aβ不仅能刺激血小板活化，也会由活化血小板释出。

High sensitive instrument neutron activation analysis is connected with highefficient nickel sulphide fire assay technique to establish the method for determing platinum group element s in geological materials.

将镍锍试金法同高灵敏度的仪器中子活化分析相连接，建立了铂族元素的镍锍试金中子活化方法。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。