Publications by authors named "V Barragan"
The entropy production in the polarization phenomena occurring in the underlimiting regime, when an electric current circulates through a single cation-exchange membrane system, has been investigated in the 3-40 °C temperature range. From the analysis of the current-voltage curves and considering the electro-membrane system as a unidimensional heterogeneous system, the total entropy generation in the system has been estimated from the contribution of each part of the system. Classical polarization theory and the irreversible thermodynamics approach have been used to determine the total electric potential drop and the entropy generation, respectively, associated with the different transport mechanisms in each part of the system.
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- Leptospirosis is a widespread zoonotic disease in humans, linked to severe symptoms and caused by various Leptospira species carried by asymptomatic animals.* -
- A study was conducted in a coastal Ecuador community, using urine samples from dogs to detect leptospiral DNA through molecular biology and next-generation sequencing.* -
- Findings revealed that dogs can be coinfected with multiple Leptospira species, challenging the belief that carriers typically harbor only a single strain.*
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- Plasmacytoid dendritic cell neoplasms are rare types of cancer that arise from specific immune cells and are divided into two categories: blastic and mature proliferations.
- A case study of a 62-year-old woman with severe skin lesions and febrile episodes revealed a diagnosis of plasmacytoid dendritic cell proliferation after extensive biopsy and testing.
- The woman's condition also indicated acute myelomonocytic leukemia, highlighting the need for awareness of the similarities between symptoms of pDC neoplasms and myeloid neoplasia to avoid misdiagnosis.
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was declared a pandemic by the World Health Organization in March 2020. Since then, viral spread from humans to animals has occurred worldwide. Nonhuman primates (NHPs) have been found to be susceptible to reverse-zoonosis transmission of SARS-CoV-2, but initial research suggested that platyrrhine primates are less susceptible than catarrhine primates.
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- - Leptospirosis, a disease caused by bacteria prevalent mostly in tropical areas, is transmitted through contact with infected rat urine or contaminated environments, with brown rats being key urban reservoirs.
- - A study conducted in Boston from 2016-2022 involved analyzing DNA from 328 rat kidney samples, revealing that 59 rats were positive for leptospirosis and indicating significant genetic structure and limited dispersal among rat populations.
- - The researchers discovered distinct genetic clades of the bacteria linked to specific rat groups, suggesting that rat movement influences the spread of leptospirosis, and indicated a connection between the disease in humans and urban rat populations based on genomic analysis.