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接触水平     
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  exposure level
     χ 2 test showed that there was an exposure level response relationship between exposure level and spontaneous abortion or congenital malformation( χ 2 =3.86, P <0.05 and χ 2 =14.62, P <0.001,respectively).
     护士职业接触抗癌药的接触水平 -反应关系的趋势 χ2 检验 ,自然流产及先天畸形均随抗癌药接触水平的增加有增高的趋势 ,其 χ2 值分别为 3.86和 14.6 2 (P <0 .0 5 ,P <0 .0 0 1)。
短句来源
     When mercury exposure level above0,06mg/m~3,the incidence of hypomenorrhea(4%)was significantly higherthan controls(1.2%)(P<0.05).
     汞接触水平超过0.06mg/m~3时,月经经量减少发生率明显高于对照组(P<0.05)。
短句来源
     Exposure level of total N-nitroso compounds in residents of high-and low-risk areas for esophageal cancer in southern
     南方食管癌高、低发区人群总N-亚硝基化合物接触水平
短句来源
     The medians of formaldehyde concentration in indoor air of offices and personal exposure level were 0.046 mg/m3 and 0.078 mg/m3 respectively, which showed no statistically significant difference (Z=-1.905,P=0.057). Conclusion Furnishings were the significant resource of formaldehyde and had an impact on indoor air quality in newly decorated apartments.
     办公室空气中甲醛浓度的中位数为0.046mg/m3,个体采样的中位数为0.078mg/m3,个体接触水平虽略高于空气中的浓度,但差异无显著性(Z=-1.905,P=0.057)。
短句来源
     Objective To study the relationship between workers' neurobehavioral function and the noise exposure level by means of Neurobehavioral Evaluation System Chinese 3 (NES C 3).
     目的 运用多媒体神经行为测试评价系统中文第三版 (NES -C3) ,探讨噪声作业工人的神经行为功能与噪声接触水平之间的关系。
短句来源
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  level of dust exposure
     Relationship between the level of dust exposure and the incidence of pneumoconiosis of miners with past exposure in a gold mine was studied by life table method. The results showed that with the increase of the accumulated dust load, both the pneumoconiosis prevalence rate (PR) and the accumulated prevalence rate of miners with past exposure increased( P< 0. 05 or P< 0. 01 ) and there existed a dose-effect relationship between the accumulated dust load and the prevalence rate.
     本文应用寿命表方法,对某金矿脱尘矿工粉尘接触水平与尘肺发病关系进行了研究,结果表明:随累积接尘量的增高,脱尘矿工尘肺患病率及累积患病率均依次递增,且差异显著(P<0.05或P<0.01);
短句来源
  level of exposure
     The 25-fold increase in bladder cancer incidence in the exposed group was related to the level of exposure: SIR=4.8 for low exposure,36.2 for medium exposure, and 158.4 for high exposure.
     联苯胺工人膀胱癌发病率增高25倍,与接触水平有关。 低接触组SIR=4.8;
短句来源
  exposed level
     The correlation between hemoglobin adducts level and TNT exposed level was analyzed. Results There was a correlation between total TNT exposure level,especially skin exposure level,and4A-Hb or2A-Hb content.
     结果血红蛋白加合物4A-Hb、2A-Hb与总接触水平相关,尤其与皮肤接触量相关性更强;
短句来源
     No significant difference was found between the slopes and intercepts of lin ear equation of(4A-Hb )vs TNT exposed level and linear equation of(4A-Hb +2A-Hb )vs TNT exposed level(P>0.05). Con clu sion Skin contamination is the major role of TNT exposure.
     其中4A-Hb与总接触水平的回归曲线和血红蛋白加合物总量(4A-Hb+2A-Hb)与总接触水平的回归曲线的斜率(F=0.03)及截距(F=0.11)的差异均无显著性(P>0.05)。
短句来源
     TNT exposed level can be evalu-ated by determining the content of both4A-Hb and2A-Hb ,and4A-Hb is more suitable for monitoring TNT expo-sure. [
     结论血红蛋白加合物4A-Hb、2A-Hb均可用于评价TNT总接触水平,其中4A-Hb更适宜评价TNT的接触水平
短句来源
     Objective To explore the biomarkers for monitoring trinitrotoluene(TNT)exposure,the rela-tionship between TNT hemoglobin adducts and TNT exposed level.
     目的探讨反映三硝基甲苯(TNT)接触水平的生物标志物,研究TNT作业工人体内的血红蛋白加合物与接触量的关系。
短句来源
     TNT exposed level was evaluated by determin-ing skin contaminated and inhaled TNT levels.
     接触水平以空气污染量和皮肤污染量表示。
短句来源

 

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      exposure level
    We found two kinds of the respirators have significant effect on decreasing the CS2 exposure level for the subject, especially for the spinners.
          
    While DNA was not recovered from samples at the 200 kGy exposure level, protein activity was reduced by 19 to 78%, depending on the method of cell preparation.
          
    About 9 wk after cessation of treatment, the lead content in hair declined to the pre-exposure level, but 64% of the maximal lead concentration did remain in bone.
          
    The critical Cd exposure level to induce tubular dysfunctions is a focus of public concern among general populations in Japan.
          
    Host age, sex, and pathogen exposure level as factors in the susceptibility of Musca domestica to Entomophthora muscae
          
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      level of dust exposure
    However, the relatively low level of dust exposure does not support the hypothesis that present day levels of diesel exhaust particulates play a significant role in the excess occurrence of lung cancer observed in professional truck drivers.
          
    Table 6 shows chronic changes in FEV1.0 according to the level of dust exposure and smoking habit.
          
      level of exposure
    The aim of the study was to investigate coping strategies used by civilians during the air attacks in Yugoslavia in 1999, and their association with the level of exposure, gender and psychological symptoms 1 year later.
          
    There was no evidence of an improved rate of recovery among those helpers who were debriefed, even when level of exposure and helping-related stress were taken into account.
          
    Depression in children was low but associated with the level of exposure to violence as reported in the interview, and greater levels of posttraumatic stress.
          
    Fetal cadmium concentration was not related to the level of exposure.
          
    Although the level of exposure was significantly higher than the 30.0 μg/l permissible limit, or the average occupational exposure, similar or even higher peak exposure values were reported from the viscose rayon industry.
          
    更多          
      exposed level
    Phase I comprised an initial period during which finger temperature remained close to the pre-exposed level, due to delayed vasoconstriction in the finger.
          
    The presently exposed level of the fault is thought to represent a section of the mid-crustal brittle-ductile transition in the seismogenic zone.
          
    Preliminary results of AChE activity in human blood showed 60-97% and 43-89% of pre-exposed level after one and three days of donepezil administration (5 mg daily), respectively.
          


    The chemical compounds, N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), af-latoxin B1 (AFB1), benzopyrene (BP), dinitrosopiperazine (DNP) and 2-acetylami-nofluorene (2-AAF), are all powerful carcinogens and SCE inducers. This paper reports the SCE changes of the workers of long term exposure to those chemicals in cancer research laboratory in two years. The results showed that the SCE value detected in the exposer in first year approximated to that of the second year, and both were significantly higher than that...

    The chemical compounds, N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), af-latoxin B1 (AFB1), benzopyrene (BP), dinitrosopiperazine (DNP) and 2-acetylami-nofluorene (2-AAF), are all powerful carcinogens and SCE inducers. This paper reports the SCE changes of the workers of long term exposure to those chemicals in cancer research laboratory in two years. The results showed that the SCE value detected in the exposer in first year approximated to that of the second year, and both were significantly higher than that of normal controls. The fact that the peripheral lymphocytes from exposer and normal controls are of the same sensitivity to mitomycin C verified that the chromosomes of lymphocytes from exposer have a normal stability. This suggested that although the variations of chromosomal stability in the exposer with normal DNA repair system do not occur in a given period of time, the long term exposure to carcinogenic environments can result in the damage of chromosomal DNA and the increase of SCE value.

    本文观察了长期接触化学致癌物的实验室工作人员的姊妹染色单体互换(SCE)频率的变化;发现第一、第二次测定的结果极其接近,且其SCE值的明显高于正常的非接触者。结果还表明,接触者与非接触者外周淋巴细胞对交联剂/致突变剂丝裂霉素C有相同的敏感性,证实接触者的淋巴细胞染色体的稳定性没有改变。文中讨论了接触者SCE 值改变的可能机理,为长期接触致癌物的实验室工作人员改善工作环境,减轻致癌物接触水平提供了实验根据。

    Studies on hazardous effects of wood dust and the relationship between effects and airborne dust concentration were made through a survey in a wood processing factory. Evidence suggested that exposure to wood dust could result in chronic bronchitis, rhinitis, the fall in FEV1/FVC and the abnormalities of chest radiograph. Exposure to higher dust concentration tended to show higher prevalences of above disorders. Allergic reactions of airway and skin were brought about in a few cases dominantly due to pine and...

    Studies on hazardous effects of wood dust and the relationship between effects and airborne dust concentration were made through a survey in a wood processing factory. Evidence suggested that exposure to wood dust could result in chronic bronchitis, rhinitis, the fall in FEV1/FVC and the abnormalities of chest radiograph. Exposure to higher dust concentration tended to show higher prevalences of above disorders. Allergic reactions of airway and skin were brought about in a few cases dominantly due to pine and oak dust. A conclusion was made that current maximum allowable concentration of 10mg/m3 for some kinds of wood dust involved in this study could not protect workers from their harmfulness.

    本文通过对某木材加工厂的调查,探讨了木生对工人健康的危害及其浓度与危害之间的关系。结果表明,木生接触可引起慢性支气管炎,鼻炎,第一秒用力呼气量比值(FEV_(1.0)/FVC)降低和X线胸片异常。并看到上述危害与浓度之间存在一定接触水平-反应关系的趋势。调查中还发现个别工人对松木和柞木等木尘出现了气道和皮肤的过敏性反应。结论认为,对于本研究中所涉及的几个木种的木生,采用10mg/m~3的最高容许值似不能充分保护工人的健康不受危害。

    The purpose of present paper is to clarify which is more appropriate index, nickel in urine or in hair, for biological monitoring. 25 workers were randomly selected as subjects to be examined.They worked in smeltery in a nickel mine.Personal samplers were used to measure their exposure to airborne nickel. The nickel contents in urine and in hair were determined. The duration of exposure to nickel and their smoking habit were recorded. By means of Z-80 microcomputer partial correlation and stepwise regression...

    The purpose of present paper is to clarify which is more appropriate index, nickel in urine or in hair, for biological monitoring. 25 workers were randomly selected as subjects to be examined.They worked in smeltery in a nickel mine.Personal samplers were used to measure their exposure to airborne nickel. The nickel contents in urine and in hair were determined. The duration of exposure to nickel and their smoking habit were recorded. By means of Z-80 microcomputer partial correlation and stepwise regression analysis were provided for the five variables. The results suggested that there existed a correlation between the nickel concentration in urine and the exposure level to airborne nickel, while correlation between the nickel content in hair and the exposure level to airborne nickel in current condition was rather poor. And neither nickel content in urine nor its content in hair showed associations with the duration of exposure to nickel or smoking habit.

    本文目的乃在于探讨尿镍或发镍作为生物学监测指标哪个更合适。随机选取某镍矿冶炼车间工人25名为对象,用个体采样器采样测定其接触空气镍的水平,并测定尿镍与发镍含量,调查其接镍作业时间和吸烟与否。用Z-80微机进行了5个变量间的偏相关分析和逐步回归分析。结果表明,尿镍浓度与空气镍接触水平有相关趋势,发镍与目前空气镍接触水平关系不大,尿镍、发镍含量均与接镍作业时间、是否吸烟无明显关系。

     
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