Human reproductive ecology to aid infant survival and growth. Lactational strategies vary cross-culturally, but can typically be defined by sibling sets and sex ratios, frequency of nursing, entire lactational duration, and milk composition. Milk is composed of my bioconstituents, but only a few will be outlined here. In the first days of puerperium, the first milk is thick and yellowish, also called colostrum. For weeks after that, mature milk is expressed and it has been shown that fetal-mammary gland signaling occurs even before birth in determining milk type and concentrations based on the fetus sex. Colostrum plays an important role in establishing the
Strophic form von Appen, André Doehring and Thomas Phleps. Vol. 13 (2015). Strophic form Strophic form, also called verse-repeating or chorus form, is the term applied to songs in which all verses or stanzas of the text are sung to the same music. The opposite of strophic form, with new music written for every stanza, is called through-composed. The term is derived from the Greek word , "strophē", meaning "turn". It is the simplest and most durable of musical forms, extending a piece of music by repetition of a single formal section. This may be analyzed as "A A A...". This additive