Positivist school (criminology) In criminology, the Positivist School has attempted to find scientific objectivity for the measurement and quantification of criminal behavior. As the scientific method became the major paradigm in the search for knowledge, the Classical School's social philosophy was replaced by the quest for scientific laws that would be discovered by experts. It is divided into Biological, Psychological and Social.
Outdoor solar lights and solar garden lights use rechargeable batteries to keep the lights lit at night. Each solar light has a solar panel that charges the rechargeable batteries by the sun during the day.
Use only NiMH or NiCd, not one of each in your 2-or-more-battery lights. Also, typical lifespans of both batteries is about 2 years (of nightly operation/use). So, if you have had your solar lights for about 2 years and are noticing that the output is diminishing at night, it may be time for a replacement.