Observational test found for Planet Nine hypothesis

Computer simulations by astronomers in the US have presented a new clue in the hunt for a hypothesized planet hiding in the far reaches of the solar system.

Cosmological analysis of a Dvali-Gabadadze-Porrati stable model with H(z) observations

In this paper, we will present a Dvali-Gabadadze-Porrati stable model in order to perform an observational test using $H(z)$ data and radial BAO scale in the galaxy distribution. In this vein, we study the tension between constraints on the cosmological constant $\Lambda$ and the crossover scale $r_c$, which is associated with the DGP model. Our results show that observations do not favor the DGP stable model as a possible candidate to fit to the observations of the late cosmic acceleration.

An ethanolic extract of Desmodium adscendens exhibits antipsychotic-like activity in mice

Background:extract (DAE) is used traditionally in Ghana for the management of psychosis. The present study aimed at providing pharmacological evidence for its ethnomedical use by testing the hypothesis that an ethanolic extract ofMethods:The primary behavioral effects of DAE on the central nervous system of mice were investigated using Irwin’s test paradigm. Novelty-induced and apomorphine-induced locomotor and rearing behaviors in mice were explored in an open-field observational test system. Apomorphine-induced cage climbing test in mice was used as the antipsychotic animal model. The ability of DAE to induce catalepsy and enhance haloperidol-induced catalepsy was also investigated in mice.Results:The DAE produced sedation, cholinergic-, and serotonergic-like effects in mice when evaluated using the Irwin’s test. No lethality was observed after 24 h post-treatment. The LDConclusions:The ethanolic extract of