2 research outputs found
Speech Identification Test in Telugu: Considerations for Sloping High Frequency Hearing Loss
No full textThe present study developed two high frequency word lists (HFWLs) with each list consisting of 25 words for assessing individuals with sloping high frequency hearing loss (SHFHL). Speech identification score (SIS) testing was carried out on normal hearing subjects who were equally divided into three groups. The results revealed that there was no significant difference (p>0.05) in mean SIS of each group between two lists, and between three groups for each list. The groups’ mean SISs were 99.68% and 99.60% for two lists respectively which are in the normal range of SIS. In order to check the applicability of HFWLs, SIS testing was carried out on subjects with sensorineural hearing loss who were equally divided into two groups. Group I: Individuals with flat frequency hearing loss (FFHL-Group). Group II: Individuals with sloping high frequency hearing loss (SHFHL-Group). SIS testing was carried out using four conventional word lists (CWLs) already existing in Telugu and two HFWLs developed in the present study. The results revealed that there was no significant difference (p>0.05) in mean SIS between CWLs and HFWLs in FFHL-Group. However, there was a significant difference (p<0.05) in mean SIS between CWLs and HFWLs in SHFHL-Group. SHFHL-Group obtained significantly lower (p<0.05) mean SIS for HFWLs compared to CWLs. Hence it can be concluded that CWLs would not indicate true nature of communication difficulties caused by SHFHL. On the other hand, the developed HFWLs were found be effective in identifying the true nature of communication difficulties caused by SHFHL
Reduced glutathione and cysteine hydrochloride on crossbred bull semen
Get PDFOver the last few years, good quality freezable semen was not utilized effectively due to less knowledge about the freezability of semen. One reason is the lack of sufficient antioxidants in the seminal plasma and semen extender. The antioxidant content is reduced during the cryopreservation process and causes premature cryo-capacitation and modification of sperm membrane structure upon thawing. So the study of pre-freezing and post thaw seminal parameters like viability, motility, acrosomal integrity, lipid peroxide assay, vanguard distance traveled by sperm, mitochondrial membrane potential, velocity and motility parameters (CASA) and field fertility trial helped to assess the effectiveness of the additives. The conception rate was better in reduced glutathione than the cysteine hydrochloride treated group. The glutathione has improved the poor freezing and maintained the good freezable semen. Thus the field fertility rate was enhanced and in turn helped to prevent waste of good quality germplasm and repeat breeder syndrome in cows
