Many investigations on T. cruzi evolutionary ecology have shown strict host parasite specificity in regard to host species and parasite genotype (2 – 4 ), although exceptions have been observed.
Previous studies have shown strict limits on the types of responses that could result in effective chemotaxis [ 23] and have demonstrated that an adaptive response dynamics provides the optimal chemotaxis performance [ 24, 25].
Our study has shown that strict adherence to reference ranges developed in industrialized countries for HIV vaccine and/or treatment trials could exclude many healthy Kenyans from participating in these studies.
18, 19 In previous reports, the lathosterol/cholesterol ratio has shown a strict correlation with whole body cholesterol synthesis, measured with the direct balance method under different experimental conditions, 20 and therefore, is widely accepted as an index of cholesterol synthesis.
Multiple types of child care are exempt from government licensure or regulation in the United States, yet previous research has shown that stricter adherence to regulatory standards predicts higher quality programs.
"Our internal investigation has shown that while we have strict policies and procedures, these were not properly followed," Uber's Dallas general manager, Leandre Johns, wrote in a letter to a Dallas city compliance official.
The country's leader, Kim Jong-un, has shown few signs of relaxing the strict controls on civic life imposed by his father and grandfather, but made a point of stressing science and technology during a rare public address on New Year's Day.
Study after study has shown that states and countries with stricter gun legislation have fewer deaths from firearms.
Other studies have shown that strict enforcement of marine reserves not only helps marine life but can reduce local poverty.
Animal studies have shown that strict insulin therapy normalizes organ nitrogen contents in diabetic rats [ 19].
