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b>Vartanian et al., Effects of soft drink consumption on nutrition and health Methods: We focused on research investigating the effects of sugar-sweetened beverages; diet and artificially sweetened beverages are noted only in certain cases for comparison purposes. We conducted a computer search through MEDLINE and PsycINFO using the key terms “soft drink,” “soda,” and “sweetened beverage.” We identified articles that assessed the association of soft drink consumption with 4 primary outcomes (energy intake, body weight, milk intake, and calcium intake) and 2 secondary outcomes (nutrition and health). We identified additional articles by searching each article’s reference section and the Web of Science database. Finally, we contacted the authors of each included article with a request for unpublished or in-press work, and we asked each author to forward our request to other researchers who might have relevant work. Our searches yielded a total of 88 articles that were included in the present analysis. What type of study design does this Methods section describe?
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b>Simonin et al., Caffeine intake and age at onset in Huntington’s disease Abstract: To determine a possible relationship between caffeine consumption and age at onset (AAO) in HD, we retrospectively assessed caffeine consumption in 80 HD patients using a dietary survey and determined relationship with AAO. Following adjustment for gender, smoking status and CAG repeat length, caffeine consumption greater than 190mg/day was significantly associated with an earlier AAO. Based on the above description from the abstract, the study design used by the researchers was a:
Before watching the next video segment, here’s a quick trivia question that will shed light on the quantity of research produced annually.Approximately how many scientific research papers are published per year?
In the discussion of the discovery of DNA presented in the previous video, the work of Avery Oswald and Watson & Crick represent a case of simultaneous discovery.
Based on the two examples of scientific discovery presented in the previous video segment, which of the following is the best definition for ‘simultaneous discovery’?
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