Fourier operator: The Fourier operator is the kernel of the Fredholm integral of the first kind that defines the continuous Fourier transform.Demodulation: Demodulation is the act of extracting the original information-bearing signal from a modulated carrier wave. A demodulator is an electronic circuit (or computer program in a software-defined radio) that is used to recover the information content from the modulated carrier wave.Abdominal ultrasonographyIEEE Ultrasonics, Ferroelectrics, and Frequency Control Society: The IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society (UFFC) is a professional society of the IEEE.Quantitative electroencephalography: Quantitative electroencephalography (QEEG) is a field concerned with the numerical analysis of electroencephalography data and associated behavioral correlates.Clonal Selection Algorithm: In artificial immune systems, Clonal selection algorithms are a class of algorithms inspired by the clonal selection theory of acquired immunity that explains how B and T lymphocytes improve their response to antigens over time called affinity maturation. These algorithms focus on the Darwinian attributes of the theory where selection is inspired by the affinity of antigen-antibody interactions, reproduction is inspired by cell division, and variation is inspired by somatic hypermutation.Interbeat interval: Interbeat interval is a scientific term used in the study of the mammalian heart.Raman microscope: The Raman microscope is a laser-based microscopic device used to perform Raman spectroscopy.Microscopical techniques in the use of the molecular optics laser examiner Raman microprobe, by M.Relationship Development Intervention: Relationship Development Intervention (RDI) is a trademarked proprietary treatment program for autism spectrum disorders (ASD), based on the belief that the development of dynamic intelligence is the key to improving the quality of life for individuals with autism. The program's core philosophy is that individuals with autism can participate in authentic emotional relationships if they are exposed to them in a gradual, systematic way.Sterling Clarren: Sterling K. Clarren is one of the world's leading researchers into Fetal Alcohol Spectrum Disorder (FASD), an umbrella term encompassing fetal alcohol syndrome (FAS), alcohol-related neurodevelopmental disorder, static encephalopathy:alcohol exposed and penatal alcohol exposed.Focus on Autism and Other Developmental Disabilities: Focus on Autism and Other Developmental Disabilities is a peer-reviewed academic journal covering the field of special education. The editors-in-chief are Alisa K.