To argue for a cause-and-effect relationship, scientists must attempt to explain why and how a connection could occur.
想要证明因果关系，科学家们必须尽量解释这种联系可能出现的原因和方式。
As yet a challenge to explain the cause-and-effect relationship between sleep and nutrition, there may be a third factor that impacts both of them.
要解释睡眠和营养之间的因果关系，还有一个挑战，那就是可能有第三个因素对它们两者都有影响。
It's as yet a challenge to explain the cause-and-effect relationship between sleep and nutrition. There may be a third factor that impacts both of them.
迄今为止，解释睡眠和营养间的因果关系仍是一个挑战。可能存在第三个因素影响这两者。
Even carefully constructed observational studies that correct for such variables can only find correlations, not prove a cause-and-effect relationship.
即便是那些精心设计、对这些变量已作调整的观察性研究也只能发现其中的相关性，而无法证实一种因果关系。
Although it might seem intuitive that under-sleeping leads to overeating, science hasn't yet found a direct cause-and-effect relationship between lack of sleep and being overweight.
尽管直觉上认为睡眠不足会导致饮食过量，但是科学界还没据找到睡眠不足与超重两者之间最直接的联系。
The role of curcumin presents certain dose-effect relationship.
姜黄素的作用呈一定的量效关系。
There's no cause-effect relationship between all these things and attraction.
所有的这些事情和吸引力之间没有因果关系。
There seems to be a natural cause-to-effect relationship between optimism and success.
在乐观与成功之间似乎有一种天然的因果关系。
There seems to be a natural cause-and-effect relationship between optimism and success.
在乐观与成功之间似乎有着某种自然的因果关系。
The distance of DNA migration in BALF and PBMC increased with a dose-effect relationship.
各剂量组PBMC、BALF细胞的DNA迁移长度显著增加，有剂量效应关系。
Conclusion: The laxative action of galactitol displays certain dosage-effect relationship.
结论：半乳糖醇的通便作用具有一定的量效关系。
A new study shows that height and weight may have a direct cause-and-effect relationship with pay.
一项新研究显示，身高和体重可能与薪酬有直接的因果关系。
Methods Agar dilution method was used to study the dose - effect relationship of antibiotic effect.
方法采用琼脂稀释法进行抗菌作用量效关系的研究。
The movements of DNA migration in the BALF and lung cells increased with a dose effect relationship.
各染毒组细胞DNA链断裂的迁移长度显著增加，且存在剂量效应关系。
Results The Ditong rhinitis gel had a better anti-inflammation effect by a quantity-effect relationship.
结果滴通鼻炎凝胶具有较好的抗炎作用，并呈一定的量效关系。
Conclusion Anshen capsule produces obvious sedative hypnotic effect. The dose effect relationship is remarkable.
结论安神胶囊具有明显的镇静催眠作用，并且量效关系明显。
In choosing cost drivers, the principal idea is that the drivers must reflect the cause-and-effect relationship.
选择成本动因最基本的原则是，成本动因必须反映前因后果之间的关系。
The experiment found that THH can inhibit the polymerization significantly and showed a dose-effect relationship.
结果发现：THH能显著抑制体外微管蛋白的聚合，该抑制效应呈明显的剂量——效应关系。
Cell proliferation rate declines with the prolongation of exposure time to DMF, and time-effect relationship exists.
随染毒时间延长，同一染毒剂量组内细胞增殖活性变化率有下降趋势，有一定染毒时间-效应关系。
The results indicated the dose-effect relationship between the MDA, SOD and the air concentration at the work-place.
SOD与作业场所空气锰浓度呈现一定的剂量反应关系。
Objectives: To explore the mechanism and the dose-effect relationship of Fongchuan Mixture on guinea-pigs with asthma.
目的探讨防喘合剂对哮喘豚鼠的作用机制及量效关系。
The expression level of HSP70 was enhanced with the exposure days increasing and showed a good time-effect relationship.
随着暴露天数的增加，肝脏组织和脑组织HSP70表达也显著增加，且存在着较好的时间-效应关系。
Objective: To study the time-effect relationship of mice embryonic toxicity and teratogenicity induced by HCHO in vitro.
目的：探讨甲醛对植入后小鼠胚胎发育毒性及时间-效应关系。
The study was not designed to detect a direct cause-and-effect relationship between consumption of salt and cardiac death.
该研究并非设计用来验证盐摄入量与心脏猝死之间是否存在直接的因果关系。
MATDA can damage DNA and induce unscheduled DNA synthesis (UDS) in human lymphocytes in vitro, on a dose-effect relationship.
敌枯双在体外对人淋巴细胞的UDS(程序外dNA合成)有诱导作用，呈剂量-反应关系。
The defects of the Balanced Scorecard primarily derive from the incompleteness of its internal cause-and-effect relationship.
平衡计分卡的缺陷主要源自于其内在因果关系的不完备。
Future research may prove whether there is a cause-and-effect relationship between coffee-drinking and a lower risk of depression.
未来研究可能证明饮用咖啡和减低抑郁症风险之间的因果关系。
Results Significant dose-effect relationship and time-course were found between arsenic exposure and DNA damage in the treated cells.
结果细胞DNA损伤与砷处理量间呈显著的剂量反应关系和时效关系。
Sensible people might look at it as an interactive process which involves interaction and cause-and-effect relationship on both sides.
理性的人会认为这是互相影响，互为因果的互动过程。
Sensible people might look at it as an interactive process which involves interaction and cause-and-effect relationship on both sides.
理性的人会认为这是互相影响，互为因果的互动过程。
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