d-d Transitions In a d–d transition, an electron in a d orbital on the metal is excited by a photon to another d orbital of higher energy. In complexes of the transition metals, the d orbitals do not all have the same energy. … An example occurs in octahedral complexesRead More →

Olshansky and Ault proposed a “fourth stage” of epidemiologic transition, “The Age of Delayed Degenerative Diseases,” in which declining age-specific mortality results in a gradual shift of non-communicable burden to older ages, with underlying causes of death showing little change overall. When was the epidemiologic transition? Background. The epidemiologic transitionRead More →

How long does it take to transition MTF? According to a 2017 article , a person can expect a decrease in sexual desire and function within 1–3 months. However, these changes can take 3–6 years to reach their maximum effect. After 3–6 months, a person can expect: a decrease inRead More →