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The main objective of this study was to determine the impact of the MYPE Tax Regime on the growth of micro and small companies in the sectors, commerce, industry and services of the Olivos district in 2017. Method: The design was non-experimental, with a quantitative approach. , descriptive correlational, analytical and transversal. The population was made up of 12 MYPES from the Los Olivos district, selected according to inclusion criteria. In the data collection technique it was the survey whose instrument measured the percentage increase. Descriptive statistics were performed with measures of central tendency. The results show that in the sales sector there was a not very significant impact, due to the 4% drop in sales. At the sector level, commerce grew by 23%, assets (increased by 35%) and sales (increased by 23%), and profits significantly (increased to 105%), while the industrial ...
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Publicado 2022
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Background: Breast cancer incidence in the United States is lower in Hispanic/Latina (H/L) compared with African American/ Black or Non-Hispanic White women. An Indigenous American breast cancer-protective germline variant (rs140068132) has been reported near the estrogen receptor 1 gene. This study tests the association of rs140068132 and other polymorphisms in the 6q25 region with subtype-specific breast cancer risk in H/Ls of high Indigenous American ancestry. Methods: Genotypes were obtained for 5,094 Peruvian women with (1,755) and without (3,337) breast cancer. Associations between genotype and overall and subtype-specific risk for the protective variant were tested using logistic regression models and conditional analyses, including other risk-associated polymorphisms in the region. Results: We replicated the reported association between rs140068132 and breast cancer risk overall ...
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Publicado 2020
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South American (SA) societies are highly vulnerable to droughts and pluvials, but lack of long-term climate observations severely limits our understanding of the global processes driving climatic variability in the region. The number and quality of SA climate-sensitive tree ring chronologies have significantly increased in recent decades, now providing a robust network of 286 records for characterizing hydroclimate variability since 1400 CE. We combine this network with a self-calibrated Palmer Drought Severity Index (scPDSI) dataset to derive the South American Drought Atlas (SADA) over the continent south of 12 degrees S. The gridded annual reconstruction of austral summer scPDSI is the most spatially complete estimate of SA hydroclimate to date, and well matches past historical dry/wet events. Relating the SADA to the Australia-New Zealand Drought Atlas, sea surface temperatures and a...
