What is on his mind?

A 28-year-old man with an asymptomatic firm plaque on his right shin: what is your diagnosis?

CLINICAL PRESENTATION A 28-year-old man referred to the dermatology clinic with an asymptomatic firm, well demarcated violaceous plaque with bumpy surface on his right medial upper shin since two years ago. At first, the lesion was an erythematous patch and gradually became like a plaque. He had pain and sensation of heaviness in his leg (Figure 1). He had no other skin lesions and was otherwis...

P-value: What is and what is not

The misinterpretation and misuse of p-value have been increasing for decades. In March 2016, the American Statistical Association released a statement to warn about the use and interpretation of p-value. In this study, we provided a definition and discussion of p-value and emphasized the importance of its accurate interpretation.    

Does God Change His Mind?

A Doctor Speaks His Mind

of this higher incidence among Negro children seems to be related to greater household exposure to sputum positive adults. In any event, the opinion that superinfection is harmless for infected children was shown not true for Negroes, who with their greater susceptibility, tend to develop progressive pulmonary tuberculosis before adolescence, as well as showing a sharp increase in incidence in ...

What Is in the Corn Judge's Mind?

In the spring of 1916, Prof. H.D. Hughes, of the Iowa Experiment Station, asked a number of experienced corn judges to score some five hundred ears of corn on the basis of what they thought the relative yields would be. These five hundred ears of corn were field run, varying from only three or four inches in length to more than ten inches. The variety was the college strain of Reid. In addition...