CPTED (Crime prevention through environmental design)
Arising from Newman's theory of defensible space, the theory of crime prevention through environmental design (CPTED) is premised on the idea that crime is linked to physical features of the environment and not solely predicated on individual, structural, or institutional measures. CPTED enjoyed a flourish of support in the early 1970s but, following years of limited success, it has fallen by the wayside in criminological theory. Currently, CPTED has yet to be definitively demonstrated as a successful strategy for suppressing crime. 
 
 
Keywords: 
 
Crime Prevention; 
Deterrence; 
Ecology; 
Environmental Criminology; 
Police
Fear of Crime in Relation to Three Exterior Site Features
This article examines fear of crime in relation to exterior site features on a college campus. The authors propose and test a theoretical model that posits that places that afford offenders refuge, and victims limited prospect and escape, will be seen as unsafe. In three studies, the authors observed behavior, obtained responses to site plans and on-site responses to perceptions of safety in relation to exterior campus areas that varied in prospect, refuge, and escape. The findings confirmed that fear of crime was highest in areas with refuge for potential offenders and low prospect and escape for potential victims. In places such as campuses, which have pronounced fear of crime, designs that manipulate prospect, refuge, and escape could reduce the fear of crime, as well as opportunities for crime.
La inseguridad jurídica en normas de contratación estatal
It is established by different studies that the issue of government procurement has been marred by several factors, the test objective to publicize these factors, we take as starting point the constant conflict between the branches of government to try and organize this subject; will collect and analyze diverse regulatory and case material in order to achieve evidence and demonstrate the different concepts of constant change that produces excessive regulation of the subject procurement and is in turn causing rapid changes that result in legal uncertainty for our law on the Contract Status.