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Prevalence of HTLV infection in the Dominican Republic: association with neurological disease
(PulbMed, 1992-02)
The presence of the human T-cell leukemia virus (HTLV) in Dominican blood donors and patients with tropical spastic paraparesis (TSP) was first detected in 1987. To define further the seroprevalence in the country, nearly ...
Mineralogical analysis with the firing temperature of limestone and clay mixture from Dominican Republic using Mössbauer spectroscopy and X-ray powder diffractometry
(Springer Link, 1991)
The study of a limestone and clay mixture using Mössbauer spectroscopy, and X-ray powder spectrometry (XRD) for different firing temperatures are presented. This type of mixture is used in raw minerals in order to obtain ...
Cognitive abilities in androgen-insensitive subjects: comparison with control males and females from the same kindred
(PUBLMed, 1991-05)
To determine the effect of androgen insensitivity on cognitive abilities, subjects with the syndrome of complete androgen insensitivity (AI) were compared to control males and females from the same kindred on the Spanish ...
Determination of trace elements in organic specimens by energy-dispersive x-ray fluorescence using a fundamental parameters method
(Wiley Analytical Science, 1991)
A rapid method for the simultaneous determination of trace elements in milk powder by energy-dispersive x-ray fluorescence has been developed. The measurement system consists of an Si(Li) detector, an x-ray tube coupled ...
Mössbauer study on indigenous ceramics in La Isabela City, Dominican Republic
(Springer Link, 1990)
The following study deals with the determination of the firing temperature of some of the ceramics found in La Isabela City, Dominican Republic, first settlement of the Spaniards in the New World. These ceramics were ...
Radioisotope X-ray fluorescence analysis of vanadium in petroleum coke samples
(Journal of Radioanalytical and Nuclear Chemistry, 1990)
Radioisotope X-ray fluorescence spectrometry, RIXRF, was used for the determination of vanadium in Venezuelan petroleum coke samples using a simple standardless method and fundamental parameter approach. The values obtained ...
Glass disk fusion method for the X-ray fluorescence analysis of rocks and silicates
(Wiley Analytical Science, 1990-08)
A study of the physical and practical aspects needed for a successful solid solution method for XRF analysis is presented in the light of the theory and practice of the glass-making industry. An inexpensive manual glass ...
Performance of the parallel plate avalanche counter (PPAC) for improving the depth profile of conversion electron Mössbauer spectroscopy (CEMS)
(Journal of Radioanalytical and Nuclear Chemistry, 1991)
The parallel plate avalanche counter (PPAC) built in our laboratory was used to measure the CEM spectra of iron electrodeposited over a steel substrate. The electron counter was operated with ketone gas inside the ionization ...
Extraction of vanadium from petroleum coke samples by means of microwave wet acid digestion
(Elsevier, 1990-01)
Certified coal standards and Venezuelan petroleum coke samples were submitted to microwave acid digestion to evaluate the convenience of this procedure for the extraction of their vanadium content. The solution and the ...
The biochemical and phenotypic characterization of females homozygous for 5 alpha-reductase-2 deficiency
(The Journal of Clinical Endocrinology & Metabolism,, 1995-11)
The biochemical and physiologic manifestations of decreased 5 alpha-dihydrotestosterone (DHT) in females are characterized. Three females from the large Dominican kindred with 5 alpha-reductase-2 deficiency were identified ...