This pattern outlines a samba variation known as 
"Partido alto"

You can also syncopate the second beat of the first 
measure by an eight note (Figure 1).

Musical examples:

Example 1
Notice that the harmony changes on the last 16th of 
the measure, followed by a 16th note rest on the first 
beat.

Example 2
You can also switch from low to high voices simulating 
an "agogo" pattern

Example 3
This example is the transcription of the guitar part 
played by Joao Bosco on the song "Incompatibilidade 
de Ginios" (Joao Bosco / Aldir Blanc), as recorded on 
the album "Joao Bosco -- Galos de Briga" -- R.C.A. 
1976.

Example 4
This example is a transcription of the first 22 measures 
of the guitar part played by Joao Bosco on the song 
"Coisa Feita" (Joao Bosco / Aldir Blanc / Paulo 
Emilio), as recorded on the album "Joao Bosco -- 
Comissao de Frente" -- Ariola Discos, 1982.