Chemical constituents, anti-rheumatic potential, and anti-inflammatory properties of the aqueous extract from the aerial parts of Aristolochia esperanzae Kuntze.

Although Aristolochia plants remain controversial due to their toxicity, this group of perianth-bearing plants, which includes the medicinal species Aristolochia esperanzae, is among the most relevant from an ethnobotanical perspective. All parts of A. esperanzae are used in popular medicine in the form of infusion for the treatment of rheumatism.

THREE NEW SPECIES OF DIXELLA DYAR & SHANNON (DIPTERA: DIXIDAE) FROM SANTA CATARINA, BRAZIL.

We describe three new species of Dixella Dyar & Shannon: Dixella moultoni sp. nov., Dixella jailtoi sp.

In situ spheroid formation in distant submillimetre-bright galaxies.

Most stars in today's Universe reside within spheroids, which are bulges of spiral galaxies and elliptical galaxies. Their formation is still an unsolved problem. Infrared/submillimetre-bright galaxies at high redshifts have long been suspected to be related to spheroid formation.

Exploring the hierarchical structure of human plans via program generation.

Human behavior is often assumed to be hierarchically structured, made up of abstract actions that can be decomposed into concrete actions. However, behavior is typically measured as a sequence of actions, which makes it difficult to infer its hierarchical structure. In this paper, we explore how people form hierarchically structured plans, using an experimental paradigm with observable hierarchical representations: participants create programs that produce sequences of actions in a language with explicit hierarchical structure.