in this paper, we prove the existence of fixed point for chatterjea type mappings under $c$-distance in cone metric spaces endowed with a graph. the main results extend, generalized and unified some fixed point theorems on $c$-distance in metric and cone metric spaces.

background and aim: digits are suitable materials for hearing assessment of wide range of patients including children and adults with various language abilities. single monosyllabic 1-10 digits in triplet formant have been used for measuring speech recognition threshold in signal-to-noise ratio. the purpose of this study was to determine signal-to-noise ratio (snr) needed for 50 percent correct...

background: preeclampsia is a disorder unique to pregnancy and has long been recognized as an important contributor of maternal and fetal morbidity and mortality. it is suggested that cytokines such as tumor necrosis factor-alpha (tnf-α) have an important role in the pathogenesis of preeclampsia and may cause generalized endothelial dysfunction. objective: the aim of this study was comparison o...

objectives: auditory perception or hearing ability is critical for children in acquisition of language and speech hence hearing loss has different effects on individuals’ linguistic perception, and also on their functions. it seems that deaf people suffer from language and speech impairments such as in perception of complex linguistic constructions. this research was aimed to study the percepti...