1
artículo
Publicado 2011
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In this paper we study the mineralogical characterization of the clay fraction of two samples of agricultural soils from Vertisols from the Valle de San Lorenzo, Piura Region, using analytical techniques such as energy dispersion X-ray fluorescence (XRF), X-ray difractometry (XRD) and transmission Mössbauer spectroscopy (TMS). Prior to their mineralogical characterization, the samples were subjected to physicochemical analysis such as measuring their pH, removal of organic matter and textural analysis. In this work we have used two samples, which have been referred to as M1 and M2 and drawn two different calicatas at a depth of 50 cm and 150 cm respectively. Mössbauer spectra were taken at room temperature. Analysis of both samples by XRF indicated that both samples have approximately the same concentration of Fe, which was approximately 3,5% and 3,9% for M1 and M2 respectively. It als...
2
artículo
Publicado 2014
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We report our results on compositional characterization of a ceramic sample from the site of Huacramarca, located in the Ancash region (Peruvian North-Central Highlands). ese results are based don XRD, XRF AND Mössbauer Espectroscopy analyses. Previous identication of compositional variability (based on macroscopical observations) suggest a pattern between dierent kinds of tempers and clay sources. Such patterns are strongly correlated with the variability identied through the outlined techniques, which allowed to go further and consider that alternative pottery-making processes were responsible for the Huacramarca assemblage. is suggests the possibility of dierent groups of people co-habiting in the settlement during the early part of the Late Intermediate Period.
3
artículo
Publicado 2014
Enlace

We report our results on compositional characterization of a ceramic sample from the site of Huacramarca, located in the Ancash region (Peruvian North-Central Highlands). ese results are based don XRD, XRF AND Mössbauer Espectroscopy analyses. Previous identication of compositional variability (based on macroscopical observations) suggest a pattern between dierent kinds of tempers and clay sources. Such patterns are strongly correlated with the variability identied through the outlined techniques, which allowed to go further and consider that alternative pottery-making processes were responsible for the Huacramarca assemblage. is suggests the possibility of dierent groups of people co-habiting in the settlement during the early part of the Late Intermediate Period.
4
artículo
Publicado 2019
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A comparative statistical analysis carried out at the Faculty of Physical Sciences, UNMSM, allows realize that there exists a marked disproportion between the numbers of admitted female and male students at the graduate level. Likewise, a similar situation is observed between the numbers of admitted and graduated female undergraduate students. These results based on statistical data verify that this eld of science continues to be masculinized.