有毒性的

The morphous of fetal rat cortical neuron is almost intact.Discussion:1 .Establishment of AD cellular modelSince Yankner 1990 first confirmed toxic effect of synthetic Aβ on hippocamp neuron in rats,cellular model was broadly used for research of mechanism of neurotoxicity due to advantages of simplification and utility.

讨论： 1.AD细胞模型的制作自从1990年Yankner首先证实合成的Aβ对培养大鼠海马神经元有毒性作用以来，体外培养的细胞模型以其简便、实用的优点被广泛用来研究Aβ的神经毒性机制。

In the acute toxicity experiments, the 96h-LC50 were 1.0×105 cells·mL-1 for the intact algal solution and 8.0×104 cells·mL-1 for the lysate. In a 7 day subacute experiment on the larvae, higher concentrations of algal solution inhibited S. macrocephalus larvae. The toxicity of the algal solution was higher than that of the lysate at the same concentration.

在仔鱼96h的急性毒性实验中，微小亚历山大藻对仔鱼的96h理论半致死浓度分别为1.0×105 cell·mL-1、8.0×104 cell·mL-1，而在7d的亚急性实验中，高浓度藻细胞液对仔鱼的生长发育有一定的抑制作用，且相同浓度下，藻细胞液产生的毒性较藻细胞破碎液大。

In the acute toxicity experiments, the algal solution and breakup solution of the concentration of 96h-LC50 were 1.0×105cells/mL and 8.0×104cells/mL, respectively. In the subacute 7 days experiment of the larvae, higher of the algal solution has the inhibition effect on sparus macrocephalus larvae. The toxicity of algal solution was higher than that of breakup solution at the same concentration.

在仔鱼96h的急性毒性实验中，微小亚历山大藻对仔鱼的96h理论半致死密度分别为1.0105 cell·mL-1、8.0104 cell·mL-1，而在7d的亚急性实验中，高浓度藻细胞液对仔鱼的生长发育有一定的抑制作用，且相同浓度下，藻细胞液产生的毒性较藻细胞破碎液大。

Increasing concentrations of phos- phorus have been shown to slightly increase [48] or de- crease [4] the hepatotoxicity of Microcystis.

在批文化的毒性作用，用鼠标铜绿生物，已经显示降低在nitrogen-depleted条件[4、48]。phorus浓度进行了——有轻微增加(48)或德-折痕[4]的肝毒性的铜绿。

ALA had obviously toxic effect on O. chinensis. Moreover, ALA caused the photoinactivation of AChE and GPx, which induced nerve transmission blocking and the capabilities to defend oxidation damage declining. Meanwhile, high-dose ALA could activate GSTs, which caused a feedback inhibition of insect to the phototoxic substance.

ALA对雌、雄中华稻蝗均有明显的毒性效应；ALA可引起AChE和GPx光失活，从而导致中华稻蝗神经传导受阻同时抵御氧化损伤的能力下降；高剂量ALA激活GSTs，可引发昆虫对光毒性物质的自身反馈抵御反应。

A number of drugs such as formocresol,camphorated parachlorophenoland metacresylacetate have been used for root canal disinfection.

近年来，有研究表明FC存在全身有毒副作用，并有潜在的致畸性和胚胎毒性。

Sensitive tests of 24 kinds of drugs demonstrated that vibrios were most sensitive to quinotons which could be a good drug available to the larval crab.

对蟹苗有一定的毒性作用，各菌株毒力大小存在差异，且同株弧菌对Z1期蟹苗的毒性大于对M期幼体。24种药物对弧菌的敏感试验表明，喹喏酮类药物显示出很好的应用前景。

Drugs, explosives biohazards and/or other contraband.

安全： 供应商应该在工作车间，仓库和供应链有足够的安全措施，以免有不明物品(如毒品、炸药、生物毒性物或其它违禁品)随货运出。

It is easy to absorb the moisture, and can be soluble by absorbing the water in the air. The water-free Zinc Chlorideis easily soluble in water. It is soluble in ethanol ,acetone and

易吸潮，能自空气中吸收水分而溶化，氯化锌水合物有1、2、3、4个结晶水，无水氯化锌极易溶于水中，能溶于乙醇、丙酮和丙三醇中，具有腐蚀性，并具有使纤维素润胀的性质，有毒性，灼热时，有浓厚白烟生成。

Since the substrates and products of DAS and DAK, Xu5P, DHAP and GAP are the intermediates of the Calvin cycle, the present study attempted to express DAS and DAK from the yeasts into plant chloroplasts and construct a HCHO-fixing pathway with DAS and DAK.

甲醛目前已成为一种无处不在的空气污染气体，几乎对所有的生物来说都有毒性，它对植物来说也是一种毒性很强的气体。

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。