Rodrigo H. Palma

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OBJECTIVES To compare several risk factors in the testicular biopsy of patients with pure seminoma with and without clinical metastasis at diagnosis. METHODS We performed a retrospective study of patients with pure seminoma. The retroperitoneum was staged with computed tomography and the thorax with simple radiography and/or computed tomography, taking(More)
BACKGROUND In developed countries, the prevalence of asthma in children has significantly increased in the last decades. However, there is no information about the trends of asthma in Latin America. AIM To determine changes in asthma prevalence between 1994 and 2002 in Chilean schoolchildren. MATERIAL AND METHODS The prevalence of asthma symptoms in(More)
The effect of different photon flux densities (PFD) and temperatures on the relative growth rate (RGR) and the concentration of three halogenated monoterpenes in samples of Plocamium cartilagineum L.( Dixon), a marine alga (Rhodophyceae), were studied. The highest RGR (22.8 +/- 0.04 d(-1)) was obtained at 15 degreebC and 41 ,mol m(-2) s)(-1) of PFD and the(More)
The creep behavior of two Cu-2 vol% TiC alloys prepared by reaction milling and extrusion are presented. Creep tests were performed at 773–1123 K. The activation energy values between 109 and 156 kJ/mol and the stress-exponent values between 3.1 and 6.3 indicated that no dispersion-strengthening effect occurred. & 2013 Elsevier B.V. All rights reserved.
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