Urban development is the social, cultural, economic and physical development of cities, as well as the underlying causes of these processes.Cities and their development is a central topic in human geography, and the study of cities makes up the sub-discipline of city geography or urbanism.However, it is not competely clear which social processes can be defined as urban.Urban lifestyles, practices and structures, urban culture and infrastructure for example, spread to other groups that do not live in what we traditionally call cities.owever, it is not competely clear which social processes can be defined as urban. Urban lifestyles, practices and structures, urban culture and infrastructure for example, spread to other groups that do not live in what we traditionally call cities.
MEK is used as a solvent in vinyl films, paint removers, lacquers, varnishes, adhesives and cleaning fluids. It is also used in the synthetic rubber industry and in the production of paraffin wax, magnetic tapes and lubricating oil.
Kanamycin is used in molecular biology as a selective agent most commonly to isolate bacteria (e.g., E. coli) which have taken up genes (e.g., of plasmids) coupled to a gene coding for kanamycin resistance (primarily Neomycin phosphotransferase II [ NPT II / Neo ]).acteria that have been transformed with a plasmid containing the kanamycin resistance gene are plated on kanamycin (50-100 ug/ml) containing agar plates or are grown in media containing kanamycin (50-100 ug/ml).