Vol. 15 No. 1

View Vol. 15 No. 1

Published: 2002-12-31

Editorial

Editorial

Hada Marieta Alvarado Beteta
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Original Research Papers

Population characteristics and habitat use of the black howler monkey (Alouatta pigra) in the area of influence of Laguna Lachua National Park, Alta Verapaz

A. Baumgarten, J.F. Hernández

1-9
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Ethnomycological study of the municipal seat of Tecpán Guatemala, Chimaltenango

O. Morales, R. Flores, B. Samayoa, M.C. Bran

10-21
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"Detection of methylecgonine ethylecgonine and cocaethylene in biological fluids as a result of the simultaneous consumption of cocaine and alcohol by the method of gas chromatography coupled to mass spectrometry"

R. Garcia, M. Ovalie

22-26
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Use of a high impedance multimeter in the construction of a Potentiometer and a conductivity meter

I. Carranza, A. Gross

27-32
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Determining dietary factor in the percentage of fat in breast milk

E. Mayorga, M.A. Gonzáles, J. Bulux

33-38
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Identification of the predominant species of Malassezia sp in samples from patients with pityriasis versicolor, folliculitis and seborrheic dermatitis

C. Castillo, G. Chacón, N. Del Cid, L. Lemus, A. Zamboni

39-41
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Determination of Antioxidant Activity in Native Fruits Available in the Main Markets of the Capital City of Guatemala

A. Barahona, P. Bolaflos, P. Calderón, I. Ramírez, V. Matta, J. Salazar, R. Velásquez

42-45
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