Revisión del complejo de géneros de chinches de encaje del Nuevo Mundo <i>Tigava</i> (Hemiptera: Heteroptera: Tingidae), con la descripción de dos nuevos géneros y dos nuevas especies y una clave para géneros

The lace bug (Tingidae) genera belonging to the New World Tigava complex are reviewed. The two new genera and new species Mexicotingis brailovskyi, from México, and Paraceratotingis convergens, from Venezuela, are described. Diagnoses, descriptions, and digital color photographs of the new taxa, diagnoses and digital photographs of the heads and pronota of all genera, an updated checklist and distributions of the included species, and a key to genera are provided to help distinguish these closely related Tingidae.Se revisan los géneros de chinches de encaje (Tingidae) del Nuevo Mundo pertenecientes al complejo Tigava. Se describen dos nuevos géneros y especies Mexicotingis brailovskyi de México, y Paraceratotingis convergens, de Venezuela. Se brindan diagnosis, descripciones, y fotos en color de los nuevos taxa, diagnosis y fotografías de la cabeza y el pronoto de todos los géneros, una lista actualizada de las distribuciones de todas sus especies, y una clave para géneros para distinguir estos Tingidae estrechamente emparentados.Facultad de Ciencias Naturales y Muse

The Impact of Family Support and Rejection on Suicide Ideation and Attempt Among Transgender Adults in the U.S.

We evaluate the association of familial factors and suicidality among transgender adults in the U.S. by estimating the odds of lifetime suicide ideation and attempt using the 2015 U.S. Transgender Survey. Predictors include family support, family rejection, and specific experiences related to both. About 79% of sample respondents have experienced suicidal ideation and nearly 43% have made a suicide attempt. The predicted probability of suicide attempt is 0.35 for those with no family rejection experiences, 0.75 for those who have had all five experiences in our models. Rejection predicts both outcomes and experiences of rejection have a cumulative impact

Hacia una antropología económica de las formas contemporáneas de ganarse la vida Towards an economic anthropology of contemporary ways of making a living

En este artículo se presenta un conjunto de reflexiones teóricas para orientar el estudio de la reproducción social en sociedades rurales. Se considera que los procesos de globalización neoliberal han derivado en la des-especialización de las economías locales, lo que ha redundado en la diversificación de bases de reproducción dentro de las que se incluye tanto el acceso irregular al empleo asalariado, como la articulación desigual y discontinua de éste con la vida sin salario. Se propone el estudio de los modos diversos en que las poblaciones rurales se ganan la vida como alternativa antropológica para estudiar los procesos contemporáneos de reproducción social

Antagonistic Interaction of Staphylococcus aureus Toward Candida glabrata During in vitro Biofilm Formation Is Caused by an Apoptotic Mechanism

Background: Infections caused by Candida species and Staphylococcus aureus are associated with biofilm formation. C. albicans–S. aureus interactions are synergistic due to the significant increase in mixed biofilms and improved resistance to vancomycin of S. aureus. C. glabrata and S. aureus both are nosocomial pathogens that cause opportunistic infections in similar host niches. However, there is scarce information concerning the interaction between these last microorganisms.Results: The relationship between C. glabrata and S. aureus was evaluated by estimating the viability of both microorganisms in co-culture of planktonic cells and in single and mixed biofilms. An antagonistic behavior of S. aureus and their cell-free bacterial supernatant (CFBS) toward C. glabrata, both in planktonic form and in biofilms, was demonstrated. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and confocal laser scanning microscopy (CLSM) images showed yeast cells surrounded by bacteria, alterations in intracytoplasmic membranes, and non-viable blastoconidia with intact cell walls. Concomitantly, S. aureus cells remained viable and unaltered. The antagonistic activity of S. aureus toward C. glabrata was not due to cell-to-cell contact but the presence of CFBS, which causes a significant decrement in yeast viability and the formation of numerous lipid droplets (LDs), reactive oxygen species (ROS) accumulation, as well as nuclear alterations, and DNA fragmentation indicating the induction of an apoptotic mechanism.Conclusion: Our results demonstrate that the S. aureus CFBS causes cell death in C. glabrata by an apoptotic mechanism