Regarding our article on the association of androgen deprivation therapy (ADT) with increased Alzheimer’s disease risk, Bowen et al, Froehner and Wirth, Leow et al, and Brady et al highlight a number of significant considerations that will prove important in the design of future studies that investigate the association of ADT and Alzheimer’s disease. We agree with Bowen et al and Leow et al tha...

introduction selection of the clear and transparent index for the precipitation using long-term homogeneous data is an important point for the researchers. several investigations have led to different indices for heavy rainfall. in some cases the specific amount of precipitation was used for heavy rainfall (rahimzadeh, 2005; masoodian, 2008; kamiguchi et al., 2006), e.g. alijani (2002) has sugg...

Much attention has focused on tonal and harmonic sounds that animals produce, while less attention has focused on the production or function of atonal, non-harmonic sounds, despite these non-linear vocal phenomena being easily identified on a spectrogram (Fitch et al. 2002). Formally, only pure tones have no non-linear attributes because harmonics are one type of non-linearity. In this study, w...

     It has been reported that in different regions and sowing dates, the response of crops to past climate change is not the same, due to different rates of decrease/increase in each climatic variable at different regions and months of year. This study was aimed to assess the effect of individual versus simultaneous changes in solar radiation (S), precipitation (P) and temperature (T) on rainf...

The range resolution in conventional continuous time frequency modulation (CTFM) is inversely proportional to the signal bandwidth. The dual-demodulator continuous time frequency modulation (DD-CTFM) processing technique was proposed by Gough et al [1] as a method to increase the range resolution by making the output of DD-CTFM truly continuous. However, it has been found that in practice the r...

The Stockwell transform (ST) is a time-frequency signal decomposition that is gaining in popularity, likely because of its direct relation with the Fourier Transform (FT). A discrete and non-redundant version of the ST, denoted the Discrete Orthonormal Stockwell Transform (DOST), has made the use of the ST more feasible. However, the matrix multiplication required by the DOST can still be a for...

how to cite this article: tonekaboni sh, mollamohammadi m. neurodegeneration with brain iron accumulation: an overview. iran j child neurol. 2014 autumn;8(4): 1-8. abstract objective neurodegeneration with brain iron accumulation (nbia) is a group of neurodegenerative disorder with deposition of iron in the brain (mainly basal ganglia) leading to a progressive parkinsonism, spasticity, dystonia...