The present invention relates to novel compounds, methods, and formulations useful for the oral delivery of a GLP-1 compound or an MC4 agonist peptide. An outer shroud extends circumferentially about the inner shroud. The configuration information may be shared with other personal digital assistants in a wireless or non-wireless manner. Immunoassays and kits to detect the presence of BMAA in a sample by contacting the sample with an antibody that binds to BMAA, and detecting the antibody bound to the sample, are disclosed. The circulation valve is employed in a wellbore treatment assembly and methods. The first arm assembly is suitable for collecting a fluid from a fluid vessel and transferring it to a sample vessel, the second arm assembly is suitable for collecting an amount of sample and fluid from the sample vessel, and the support surface further comprises a mixing assembly suitable for mixing the fluid and the sample.