Ayer is a surname. Notable people with the surname include:

El diálogo psicoanalítico ayer y hoy. ?Qué ha sido de la asociación libre y de la atención flotante? Primera parte: Asociación...
Qué hicieron ayer los 18 diputados cordobeses
Siria es hoy más fuerte que ayer
Nuclear receptor repression mediated by a complex containing SMRT, mSin3A, and histone deacetylase.
A HELIX-LOOP-HELIX ZIPPER PROTEIN THAT FORMS A SEQUENCE-SPECIFIC DNA-BINDING COMPLEX WITH MYC AND MAD
Osmotic system having laminar arrangement for programming delivery of active agent
Expression of the KAL Gene in Multiple Neuronal Sites During Chicken Development
Mad: a heterodimeric partner for Max that antagonizes Myc transcriptional activity.
Autologous bone marrow-derived cultured mesenchymal stem cells delivered in a fibrin spray accelerate healing in murine and human cu...
A switch from Myc:Max to Mad:Max heterocomplexes accompanies monocyte/macrophage differentiation.