In S. postica the hypopharyngeal glands are present in workers, males and queens. The glands of newly emerged workers are in a prefunctional phase, in nurse workers they reach their highest development and in forager workers ...

In insect societies, workers often try to challenge the reproductive monopoly of the queen by laying their own eggs. Successful worker reproduction, however, is frequently prevented by queen policing or worker policing, ...

Leaf-cutting ant workers care for larvae with an elaborate behavioural repertoire to satisfy the needs of the offspring. In order to investigate worker discrimination ability in the leaf-cutting ant Acromyrmex subterraneus ...

Leaf-cutting ant workers care for larvae with an elaborate behavioural repertoire to satisfy the needs of the offspring. In order to investigate worker discrimination ability in the leaf-cutting ant Acromyrmex subterraneus ...

Neotropical swarm-founding wasps build nests enclosed in a covering envelope, which makes it difficult to count individual births and deaths. Thus, knowledge of worker demography is very limited for swarm-founding species ...

The paper presents preliminary findings of qualitative research, case study based, on the organization and collective mobilization of two groups of precarious workers in the city of Buenos Aires. Contrary to research that ...

A group labourers at a quarry.

The Workers??? Health (WH) approach understands that it is necessary to expand the ob-ject of public policies to transform the work proces-ses that determine the health-disease relationship. This broadening brings challenges ...

Limitations of the fundamental rights of workers for safety reasons: the mandatory health exams.