At Thirty

Yet Another Look at Thirty Categorization Results

We re-analyzed thirty data sets reported in the literature and summarized by Smith and Minda (2000), based on Medin and Schaffer’s (1978) 5-4 structure. In their meta-analysis, Smith and Minda (2000) focused on comparing the prototype and the exemplar model. In our meta-analysis, we applied the varying abstraction model, a multiple-prototype model proposed by Vanpaemel, Storms, and Ons (2005), ...

Thirty Years of Sweat Chloride Testing at One Referral Center

Objective To conduct a descriptive analysis of the sweat test (ST), associating ST results with epidemiological data, CFTR (cystic fibrosis transmembrane conductance regulator) mutations and reasons to indicate the ST, as well as correlating sweat sodium and sweat chloride concentrations in subjects. Methods Retrospective survey and descriptive analysis of 5,721 ST at a university referral ce...

Age at menarche: Accuracy of recall after thirty-nine years.

Coevolution theory of the genetic code at age thirty.

The coevolution theory of the genetic code, which postulates that prebiotic synthesis was an inadequate source of all twenty protein amino acids, and therefore some of them had to be derived from the coevolving pathways of amino acid biosynthesis, has been assessed in the light of the discoveries of the past three decades. Its four fundamental tenets regarding the essentiality of amino acid bio...

Thirty-day postoperative death rate at an academic medical center.

OBJECTIVE To improve understanding of perioperative deaths at an academic medical center. SUMMARY BACKGROUND DATA Because published data have typically focused on specific patient populations, diagnoses, or procedures, there are few data regarding surgical deaths and complications in institutional or regional studies. Specifically, surgical adverse events and errors are generally not studied ...