Pure-tone audiometric changes following spinal intradural and epidural anaesthesia

Pure tone audiometry was done for 20 patients subjected to spinal intradural anesthesia and 20 patients subjected to epidural [extradural] anesthesia. The recording of hearing acuity was done 24 hours before and after anesthesia and 7 days postoperatively. Twenty-four hours postoperatively, 55% of the patients subjected to intradural anesthesia suffered from low tone sensorineural hearing loss which was slight to moderate ranged 5-35 dB, while 40% of patients subjected to epidural anesthesia suffered from low tone hearing loss ranging 5-30 dB. This hearing loss returned more or less to normal levels within one week postoperatively. It was transient and required no treatment but was often overlooked

Studies on the soil algal flora of the canal bank habitats at Sohag District, Egypt

The soil algal flora of the canal bank habitat at Sohag District, Egypt, together with the edaphic, climatic factors and physicochemical characters of the soil were seasonally studied during the year 1992. The maximum values of electric conductivity, sodium, potassium, calcium, chloride, sulfate, bicarbonate, soluble, silicate and ammonia-nitrogen were recorded in summer. The highest values of magnesium and available phosphate were detected in autumn. The maximum values of algal biomass [100.3 kg/ha] was estimated in winter. This was accompanied by maximum values of organic carbon and nitrate nitrogen. On the other hand, the minimum values of algal biomass [9.1 kg/ha] and organic carbon were detected. Thirty-four species were isolated and identified, 24 Cyanophyta, 8 Chlorophyta, one Xanthophyta and Bacillariophyta. The blue-green algae frequently encountered constituted 70.58% of the total population of all soil samples with predominance of Anabaena, Calothrix, Lyngbya, Nastoc and Phormidium. Green algae were mostly represented by Asterococcus chlorella and Kirchneriella. Both Xanthophyta and Bacillariophyta were represented by one species, Hanzschia and Tribonema, respectively

Effect of cool brooding climate on chick performance

Brooding of young chicks [0-4 wk] in cool environment [24.4 C] exposed them to acute stress especially for the 1st few days which was reflected on the health state of the bird all over the growing period. Economic losses were, due to the decrease in live body weight [60.3 gm] and the difference in food conversion [1.96] in comparison with [1.48] in control one [1.48]