Exploring honey bee toxicological data as a proxy for assessing dimethoate sensitivity in stingless bees.

The high diversity and distinctive characteristics of stingless bees pose challenges in utilizing toxicity test results for agrochemical registrations. Toxicity assessments were performed on 15 stingless bee species, along with the honey bee, using the insecticide dimethoate, following adapted OECD protocols. Median lethal doses over 24 h (24 h-LD50) were determined for exposure routes (acute oral or contact) and species. Species sensitivity distribution (SSD) curves were constructed and the 5% hazard doses (HD5) were estimated based on 24 h-LD50 values. The SSD curve was adjusted as the body weight and dimethoate response were correlated. Lighter bees (<10 mg) had lower 24 h-LD50 values. Contact exposure for adjusted HD5 suggested insufficient protection for Melipona mondury, whereas the oral exposure HD5 indicated no risks for the other 14 species. Comprehensive risk assessments are crucial for understanding the agrochemical impact on stingless bees, emphasizing the need for a broader species range in formulating conservation strategies.

Escrevendo em mim: me inscrevo e me descrevo / By Writing on me; I subscribe myself and describe myself

O presente trabalho visa apreender o corpo pensado como um espaço de inscrição simbólica. O trabalho é resultado da interlocução entre psicanalistas que, estudando as vicissitudes da adolescência, tomaram como viés a investigação acerca de diferentes modalidades de inscrições e marcas corporais. Como crivo das nossas elaborações psicanalíticas, enfocamos as tatuagens, que se apresentam como formas de linguagem e expressão. Nessa fase da vida, o corpo passa a ocupar espaço privilegiado de manifestações e comunicações de conflitos psíquicos. A investigação aqui proposta reflete sobre as contribuições da psicanálise ao que se refere ao ato de ferir o corpo, como também reflete sobre as inscrições corporais pigmentadas na pele, como possíveis formas identitárias e integradoras, que estabelecem a comunicação entre mundo interno e externo, corpo e mente.

The present study aims to apprehend the body conceived as a space for registration mark. The work is a result of the interlocution between psychoanalysts who, by studying the vicissitudes of adolescence, took as a bias research about different modalities of inscriptions and marks. As sieve of our psychoanalytic elaborations, we focus on the tattoos, which present themselves as forms of language and expression. During this phase of life, the body is to occupy a privileged area of manifestations and communications of conflicts. This research proposed here reflects the contributions of psychoanalysis on both that refers to the act of injuring the body, as well as the inscriptions pigmented body in the skin, as possible forms of identity and integrative, establishing communication between the world inside and outside, between body and mind.