human 1,222 Humans 1,051 Technology: general issues 786 male 697 female 688 Male 542 Female 539 History of engineering and technology 536 adult 503 TA Engineering (General). Civil engineering (General) 484 Article 450 TJ Mechanical engineering and machinery 442 controlled study 393 Materials science 368 procedures 345 Adult 331 TP Chemical technology 329 Research & information: general 301 TK Electrical engineering. Electronics Nuclear engineering 279 middle aged 279 Middle Aged 260 History 236 adolescent 210 aged 208 young adult 198 Adolescent 195 article 195 Young Adult 191 chemistry 189 child 189