The Boy In The Strped Pajamas

pajamas
(pajama) (usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers
A suit of loose pants and jacket or shirt for sleeping in
A pair of loose pants tied by a drawstring around the waist, worn by both sexes in some Asian countries
(pajama) a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries
Pajamas, also spelled pyjamas (see also spelling differences) can refer to several related types of clothing. The original paijama are loose, lightweight trousers fitted with drawstring waistbands and worn in South and West Asia by both sexes.

in the
“steady state” thermal values obtained from laboratory testing, it is assumed that temperatures at both sides of a wall are constant and remain constant for a period of time, unlike what actually occurs in normal conditions.
(in this) therein: (formal) in or into that thing or place; "they can read therein what our plans are"
Overview (total time = 00:29:39), I cover some definitions of lean, its roots in the Toyota Production System, and how resource planning and lean work together.

boy
male child: a youthful male person; "the baby was a boy"; "she made the boy brush his teeth every night"; "most soldiers are only boys in uniform"
a friendly informal reference to a grown man; "he likes to play golf with the boys"
son: a male human offspring; "their son became a famous judge"; "his boy is taller than he is"
Used to express strong feelings, esp. of excitement or admiration