314 is an action resistance group for elected scientist to political positions.
http://www.314action.org/home/
https://www.acsh.org/news/2018/02/22/314-action-wants-elect-scientists-only-if-theyre-democrats-12612
LEMP has a few meanings. First in german it can be 'Lamp'
second it can have different acronym meanings
LEMP Leucoencephalopathie Multifocale Progressive (French: Progressive Multifocal Leukoencephalopathy)
LEMP Lightning Electromagnetic Pulse
LEMP Lay Ecclesial Ministry Program (Las Vegas, NV)
LEMP Lesotho Energy Master Plan
LEMP Leadership Enhancement Mentoring Program (Women’s Forum of Jordan)
LEMP Lower Extremity Muscle Performance
https://www.allacronyms.com/LEMP/lightning_electromagnetic_pulse