Shape resonances in nested diffraction gratings

The diffraction problem of a plane wave impinging on a grating formed by nested cavities is solved by means of the modal method, for $s$ and $p$ polarization modes. The cavities are formed by perfectly conducting sheets that describe rectangular profiles. The electromagnetic response of the grating is analyzed, paying particular attention to the generation of resonances within the structure. The dependence of the resonances on the geometrical parameters of the grating is studied, and results of far and near field are shown. The results are checked and compared with those available in the literature for certain limit cases.Comment: 18 pages, 8 figure

Understanding and addressing pseudoscientific practices in the treatment of neurodevelopmental disorders: Considerations for applied behavior analysis practitioners

Pseudoscientific practices are commonly used and promoted in the field of developmental disabilities. Behavior analysts should anticipate encountering such treatments in practice and understand their ethical obligations with regard to these practices. Thoughts on why pseudoscientific practices are frequently sought are presented for context in understanding this complex issue. This discussion will serve to prepare behavior analysts for how to address situations in which clients may ask behavior analysts to use pseudoscientific practices. Additionally, this discussion covers arguments for the dangers of using pseudoscientific practices, a guide to resources for information on evidence‐based practice and ethics, and ideas on how to handle a situation in which a parent or caregiver asks the behavior analyst to integrate a pseudoscientific approach into the treatment of a child with a neurodevelopmental disorder.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/166340/1/bin1750_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/166340/2/bin1750.pd