Vasculitis after blood pressure monitoring.

Introduction: Description of appearance of ecchymosis on an arm, simultaneously with a classical Leukocytoclastic Vasculitis, the proposal of alternative utilities of measuring blood pressure, and the study of side effects to that measure.

Patient: Case 80-year-old male came to ER with dyspnea, heart failure, predialysis renal failure with hyperkalemia and hemodynamic instability. During his stay he developed a skin lesion that looks like palpable purpura, from the lower limit of the blood pressure cuff to the distal area of the hand that not disappeared with vitropression, and pruritus.

[An aligned rank test for a nonparametric analysis of the two-way interaction].

An aligned rank test for a nonparametric analysis of the two way interaction. Research problems that require nonparametric analysis of the interaction frequently arise in the behavioral sciences. There is, however, a lack of available procedures in commonly used statistical packages such as SAS or SPSS.

[Quality service in supermarkets: a proposal of measurement].

This assignment has the aim of going deeply into the study of service quality perception in supermarkets. The research tries to find the criterion used when rating the services received in a supermarket and also to elaborate an instrument to measure the service quality in this context. From the review of the existing bibliography, four theoretical factors and a thirteen items scale have been composed.