Bioaccumulation of heavy metals in the tissues of Schizothorax plagiostomus at River Swat.

Snow trout (Schizothorax plagiostomus) is an economically important freshwater fish, mostly found in northern areas of water reservoirs of Pakistan. The current study was conducted in River Swat to analyze the bioaccumulation of heavy metals (Pb, Cr, Ni, and Zn) in tissues of Schizothorax plagiostomus. Tissues were extracted and dissolved in perchloric acid (HClO4) and nitric acid (HNO3) along with hotplate.

Wide eyes and drooping arms: adult-like congruency effects emerge early in the development of sensitivity to emotional faces and body postures.

Adults' and 8-year-old children's perception of emotional faces is disrupted when faces are presented in the context of incongruent body postures (e.g., when a sad face is displayed on a fearful body) if the two emotions are highly similar (e.

Recognizing identity in the face of change: the development of an expression-independent representation of facial identity.

Perceptual aftereffects have indicated that there is an asymmetry in the extent to which adults' representations of identity and expression are independent of one another. Their representation of expression is identity-dependent; the magnitude of expression aftereffects is reduced when the adaptation and test stimuli have different identities. In contrast, their representation of identity is expression-independent; the magnitude of identity aftereffects is independent of whether the adaptation and test stimuli pose the same expressions.