A research study is planned to determine the effect of nutritional supplementation and type of support surface on the rate of wound healing in sacral myocutaneous flap failures. Which are independent variables in this study?

Which of the following statements best describes the roles of england and france in new world? a. englandand france became involved in the americans only after a papal decision granting the control of north america. b. jacques cartier claimed canada for england in 1534. c. most of england’s voyages of exploration were focused on south america. d. english and french explorations in the arctic turned europe on to the opportunities of whaling and fishing in the area.

How and why has british society changed over the last 50 years?

Which of the following is an example of how the principle of beneficence can be applied to a study employing human subjects? providing detailed information about the study and obtaining the subject's consent to participate. ensuring that the selection of subjects includes people from all segments of the population. ensuring that persons with diminished autonomy are protected. determining that the study has a maximization of benefits and a minimization of risks.