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     The model was developed as follows:Lgk=0.1521g Kow -0. 299~2X~V-0. 208n=8, R=0. 944, F=20. 412, Sig.
     Lgk=0.1521g Kow-0.299~2X~v-0.208 n=8,R=0.944,F=20.412,Sig.=0.004
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     The ANAE positive rates of lymphocytes from peripheral blood in every treatment group(44.81±1.44、39.91±0.15、30.54±1.52)were decreased sigˉnificantly compared with the control(51.84±0.40)(P<0.01).
     各辐射组ANAE阳性率(44.81±1.44、39.91±0.15、30.54±1.52)比对照组(51.84±0.40)明显降低(P<0.01);
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     The model was developed as follows:BOD_5=-0.034MW+0.4471g Kow +5.57n=10, R=0.878, F=11.741, Sig. =0.006
     BOD_5=-0.034MW+0.447lg Kow+5.57 n=10,R=0.878,F=11.741,Sig.=0.006
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     The expression level of TEY1in HCCLM3was also sig nificantly different from those in MHCC97-H and MHCC97-L(P<0.05).
     HCCLM3的TEY1基因表达水平与MHCC97-H和MHCC97-L相比差异有显著性(P<0.05);
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     The experiment indicated that 10mg /L EDTA,200mg /L Vc,150mg /L NaHSO 3 and200mg /L Na 4 P 2 O 7 inhabited the activities of PPO and POD sig nificantly.
     结果表明,10mg/L的EDTA、200mg/L的Vc、150mg/L的NaHSO3、200mg/L的Na4P2O7对PPO和POD具有十分有效的抑制作用。
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     Aseptic System from SIG
     塑料瓶的无菌灌装系统
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     SIG Combibloc: Made in China
     康美包 中国造——记SIG康美包(苏州)有限公司开业典礼
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  sig
Analysis of the evolution of the family of the Sig genes encoding plant sigma factors
      
In the higher plants, sigma subunits are encoded by the family of nuclear Sig genes comprising 5-6 genes.
      
It is established that for weakly ionizing radiation (as also in the case of strongly ionizing alpha particles) the sig-nal is amplified by no less than a factor of several tens.
      
A linear regression analysis of the data is found to be sig-nificant for all the four months.
      
Somatosensory cortical potentials evoked by stimulation of leg nerves: analysis of normal values and variability; diagnostic sig
      
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Modulators are important elethents in the amplificatiou of weak d.c.sig-nals.Magnetic modulator have the ProPerties of providing highest voltage ga-can,stably amplify weak d.c.signals of the order of 10~13 watta Being stmpie in construe-tion of hasic frequency magnetic modulators,and a simple metbod of calculations from graphs together with an example and some discussion on manufacturing techniques

调制器是放大微弱直流信号的重要环节。目前通用的各种调制器中,磁调制器具有最高电压放大倍数、灵敏度和稳定性能。基频磁调制器可稳定地放大功率为10~(-13)瓦的微弱直流信号,并且简单可靠,在一般自动调节和随动系统中得到广泛应用。本文阐述一种改进的基频磁调制器线路结构,提出一种简捷图解计算法,并给出了计算举例、实验结果和制造工艺中某些问题。

Thioacetamide is a hepatotoxic agent.In this paper,the effects of thioacetamide on the pentobarbital sleeping time and the rate of hepatic drug metabo- lism in mice and rats are reported. Mice treated with a dose of thioacetamide (60mg/kg s.c.) 48 hours prior to an in- jection of pentobarbital slept much longer than untreated animals.Similar results were obtained in rats treated 12-72 hours previous to injection.One hour after pentobarbital administration,whole-body levels of the hypnotic in thioacetamide-treated...

Thioacetamide is a hepatotoxic agent.In this paper,the effects of thioacetamide on the pentobarbital sleeping time and the rate of hepatic drug metabo- lism in mice and rats are reported. Mice treated with a dose of thioacetamide (60mg/kg s.c.) 48 hours prior to an in- jection of pentobarbital slept much longer than untreated animals.Similar results were obtained in rats treated 12-72 hours previous to injection.One hour after pentobarbital administration,whole-body levels of the hypnotic in thioacetamide-treated mice were significantly higher than those in control animals.The rate of biotransformation of pentobarbital in vitro by liver slices from rats pretreated with thioacetamide was found to be less rapid than those from control animals.These facts indicate that the hepatic metabolism of pentobarbital was lowered by thioacetamide pretreatment,and thus may explain,at least in part,the prolonging effect of thioacetamide on pentobarbital sleeping time.On the other hand,at the time of recovery from narcosis,the whole body levels of pentobarbital in thioacetamide pretreated mice as well as the concentrations of bar- biturate in the brain of rats pretreated similarly,were significantly lower than those in control animals.In addition,it was found that the ED-50 of pentobarbital action was decreased,and that the diethylbarbital sleeping time was increased by pretreatment with thioacetamide.It appears,therefore,that an extra-hepatic mechanism of the effect of thioacetamide on pentobarbital action is also involved. In in vitro experiments using liver slices from rats treated with thioacetamide 48 hours previously,only a slight decrease in the rate of metabolism of chlorpromazine was observed,while the rate of biotransformation of p-nitrobenzoic acid was not sig- nificantly affected.When added in vitro,thioacetamide was shown to exert no inhibitory effect on pentobarbital metabolism.The decrease in the pentobarbital-metabolizing ability of liver slices from rats pretreated with thioacetamide was found to correlate to a certain extent with the fall of hepatic glycogen and aseorbic acid contents,as well as with the histological changes induced by this hepatotoxic agent. Thioacetamide was shown not to block completely the shortening of phenobarbital sleeping time or the increase in hepatic aseorbio acid content induced by phenobarbital pretreatment.

给小鼠皮下注射硫代乙酰胺60毫克/公斤后48小时戊巴比妥钠睡眠时间明显延长;同剂量的硫代乙酰胺给大鼠后在12—72小时内戊巴比妥钠睡眠时间也都明显延长,而以48小时者最为明显。进一步实验发现48小时前接受一剂硫代乙酰胺处理的小鼠,戊巴比妥钠自体内消失的速率比正常动物者明显减慢;12—72小时前曾接受一剂硫代乙酰胺的大鼠肝切片转化戊巴比妥钠的速率比正常动物肝切片者小,此与戊巴比妥钠睡眠时间的延长相一致。可见,经硫代乙酰胺处理的动物的戊巴比妥钠睡眠时间延长的原因之一,是由于硫代乙酰胺抑制了肝脏对戊巴比妥钠的转化。另一方面,48小时前曾接受过硫代乙酰胺处理的小鼠,睡眠刚醒时,体内戊巴比妥钠含量明显地低于对照组;曾经硫代乙酰胺处理的大鼠刚醒时,脑组织的戊巴比妥钠含量明显低于对照组者。在经硫代乙酰胺处理后的小鼠,戊巴比妥钠引起睡眠的 ED_(50)明显减小;二乙基巴比妥钠的睡眠时间亦明显延长。这些结果说明硫代乙酰胺处理也增加了动物中枢对戊巴比妥类药物的敏感性。

It has been proved by practice in the last few years that sugarbeets can grow well in the South of our country.Neverthless,the overwintered sugarbeet plants grown in that area rarely flower so that the seed production of the crop is in difficulties,and consequently disadvantageous to the agricultural extension work. According to the results of two years research work we have done in Miloo River State Farm of Hunan,it has been found that the major reason why the plant fail to produce flower in that area is the...

It has been proved by practice in the last few years that sugarbeets can grow well in the South of our country.Neverthless,the overwintered sugarbeet plants grown in that area rarely flower so that the seed production of the crop is in difficulties,and consequently disadvantageous to the agricultural extension work. According to the results of two years research work we have done in Miloo River State Farm of Hunan,it has been found that the major reason why the plant fail to produce flower in that area is the insufficient daily photoperiod during the key period in the spring season.Accordingly with a light extension or night-break treatment the percentage of flowering plant can be raised remarkably.Moreover,it is of interest to note that application of GA accompanied by the supplimentary illumination can sig- nificantly increase the percentage further,although the promotive effects of GA treat- ment alone on flowering of this crop is by no means noticeable. It is reasonable to suppose that such a promotive effect of GA on flowering of sugarbeets should be helpful to the seed production industry in Hunan as well as some other areas,and also it is a possible approach in researching the mode of action of GA on flowering.

甜菜留种是我国南方甜菜生产要求解决的关键问题之一。两年的试验结果表明,春季光周期长度不足是湖南汨罗地区甜菜留种困难的原因之一。用短期补充光延长光期或加光打断暗期并配合赤霉素(GA)处理的方法,能有效地调节留种甜菜的抽苔和开花,从而使有效留种植株百分率有较大幅度的提高。GA 处理配合光照促进甜菜开花,除有助于解决汨罗和其他气候条件类似地区的甜菜留种问题外,还为探究 GA 促进植物开花的作用机理提供了一个线索。

 
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