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Oaxaca is one of the three main producing states of jamaica sorrel or roselle, Hibiscus sabdariffa L., of Mexico. This crop is affected by various pests such as pseudococcids. In 2022, the mealybug Phenacoccus solenopsis was detected causing damage in an experimental plot. The damage it causes to plants is wilting, drying, and defoliation of some terminal apices of the branches. Infestation levels ranged from 14 to 86%. [ABSTRACT FROM AUTHOR]

In this paper we study a large class of Weingarten surfaces which includes the constant mean curvature one surfaces and flat surfaces in the hyperbolic 3-space. We show that these surfaces can be parametrized by holomorphic data like minimal surfaces in the Euclidean 3-space and we use it to study their completeness. We also establish some existence and uniqueness theorems by studing the Plateau problem at infinity: when is a given curve on the ideal boundary the asymptotic boundary of a complete surface in our family? and, how many embedded solutions are there? [ABSTRACT FROM AUTHOR]

The article presents a reprint of a short story "Monologue for Jutito," by Antonio Gálvez Ronceros, which appeared in the book "Monólogo desde las tinieblas," published in 1975. The story revolves around an Afro-Peruvian boy named Jutito. In the story the author says to Jutito, the things he will have to learn when he grows up to be a man like working on fields to fulfill his life.

The short story "Jutito" by Antonio Gálvez Ronceros, previously published in Monólogo desde las tinieblas is presented.

Abstract  A bacteriocin-producing lactic acid bacterium (strain 2.5) isolated from cow’s milk used in cheese production from Northern Morocco was selected for its strong anti-listerial activity. The producer strain was identified as Enterococcus faecalis by molecular methods. Strain 2.5 carried the genetic determinants for the two-peptide enterococcal bacteriocin enterocin 1071, and the active bacteriocin was purified to homogeneity by reversed-phase chromatography from culture broths of the producer strain. Strain 2.5 carried two plasmids (of ∼7 and 40 kb). Characterization of strain 2.5 at biosafety level indicated that this strain is non-haemolytic, and lacks the genetic determinants for most of the virulence factors described in enterococci (cylB, cylM, gelE, ace and agg) although it carried the genetic determinants cylA, efaAfs as well as determinants for the sex pheromone peptides cpd, cob, and ccf. Strain 2.5 was resistant to tetracycline, rifampicin, and ciprofloxacin, but it was sensitive to penicillin, ampicillin, vancomycin, and teicoplanin. Results from the present study support the potential role of strain 2.5 as an anti-listerial agent to be tested in traditional fermented foods. [ABSTRACT FROM AUTHOR]