human 151 Humans 112 TP Chemical technology 78 Technology: general issues 78 female 72 male 70 TA Engineering (General). Civil engineering (General) 67 article 60 History of engineering and technology 55 Research & information: general 54 TJ Mechanical engineering and machinery 52 adult 51 Article 45 Female 45 TK Electrical engineering. Electronics Nuclear engineering 42 friend 40 Biology, life sciences 39 Environmentally-friendly architecture & design 39 Male 39 software 38 controlled study 37 Software 35 genetics 33 History 31 Adolescent 27 Chemistry 27 Environmentally-friendly ('green') architecture and design 27 COVID-19 26 Malaysia 26 QD Chemistry 26