Ключевые слова: 40 to 44 years, 4044 years, blue collar worker, caucasian ethnicity, concentration, differential focus, efficiency, factory, factory worker, focus concept, hard work, holding, indoors, industrial building, industrial facility, industrial occupation, industrial plant, industry, july 2014 release, machine, male, man, manual worker, manufacturing machinery, manufacturing plant, mature adult, mature man, mature men, men, numeral, occupation, one person, only one mature man, orthographic symbol, package, packaging, paper, preparation, real people, selective focus, standing, symbol, thinking, uniform, using, wearing, worker,