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The themes in Huis Clos are as follows: suffering, judgement, sexual desire, dishonesty and the afterlife. Our three main characters, Garcin, Inès and Estelle, arrive in a mysterious hotel together only t...

Lumen sizes in blood vessels differ due to the differing functions of the vessels themselves.

Arteries have to carry oxygenated blood away from the heart to the tissues at high pressure. Small lume...

Adrenaline is released from the adrenal medulla in response to the activation of the sympathomedullary pathway, in response to acute stress. The direct effects of adrenaline include the increase of heart ...

The preterite is used to describe actions that were completed at a specific moment in the past. For example, "Ayer, Marina me pidió ir al cine". This action happened yesterday (ayer) and is not ...

You should write a^x as (e^lna)^x = e^xlna . ln(a) is a constant, so use the chain rule to differentiate this: lna(e^xlna) = lna(a^x)