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Abstract : Geoelectrical Investigations at Three Bridge Sites, North Nyala, Southern Darfour State, West-Sudan
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Abstract: Resistivity measurements were carried out to delineate the depth of the basement rocks (bedrock) and the lithology of the overlying sediments for the purpose of bridges construction route. The survey was conducted at three sites: Andro, Duma and Manwashi, north Nyala, Southern Darfur State, Western Sudan. These sites (Andro, Duma and Manwashi ) are located along Nyala _ El-Fashir road at a distance approximately of 15km, 42km and 75km from Nyala (respectively). The surface geology of the area is dominated by the basement complex rocks which are overlain by thin layer of superficial deposits The modeling of the VES data was done using IX1D software. The final results of the modeled and interpreted resistivity data are presented in the form of geoelectrical sections. These sections have shown a close agreement with the geological and hydrogeological conditions of the area. Three zones were identified in these sections, they are the top dry zone (<1m to >3m) representing the superficial deposits, the middle zone (Saturated zone) represents the groundwater aquifer. It varies in lithology from weathered and cracked basement rocks to the Alluvial deposits with a significant heterogeneous nature which varies from clayey, silty, sandy, pebbly and boulders layers. The bottom zone (Fresh basement rocks) represents the bedrock. It indicate an increase of hardness and compaction from Andro , Duma and Manshawi sites respectively. These findings can be used successfully for constructions the bridges of the three sites. Keywords: Resistivity, VES, Bridge, Site Investigation & Darfur.Download Full Article |
Abstract : Role of Tissue Specific Plantar Fascia Stretching Exercises Versus Myofascial Released Technique in Chronic Plantar Fasciitis
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Abstract: Objective: The effectiveness of tissue specific stretching exercises and myofascial released technique on intensity of pain and Foot function was compared in chronic plantar fasciitis patients. Study Design: Randomized controlled trial study Place and Duration of Study: This study was conducted at Al-Ain Poly clinic Karachi between 2012-13. Materials and Methods: Fifty patients with chronic plantar fasciitis were enrolled through convenience sampling and were randomly assigned into Stretching Exercise and Myofascial Release Technique groups. Intensity of pain and foot function were evaluated by Visual Analouge Scale and foot function index, respectively. Ten sessions were done for both groups. T-tests and ANCOVA test were used for statistical analysis (p<0.05). Results: The score of visual analogue scale (VAS) and foot functioning index (FFI) improved in both groups, though the decrease of intensity of pain was more in stretching exercises Group (p<0.01). Additionally, improvement in foot functioning index did not significantly differ between two groups. Conclusion: The stretching exercises can reduce pain and improve foot functioning in chronic plantar fasciitis. Keywords: Chronic plantar fasciitis, supervised stretching exercises, Myofascial released technique, Pakistan.Download Full Article |
Abstract : Biosortion of Cr(VI) from Aqueous Solutions Using Chemically Modified Okra Powder
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Abstract: The main objective of this work was to use the okra powder modified with citric acid as biosorbent for the removal of Cr(VI) from aqueous solutions. Samples of Cr(VI) solution were prepared by diluting the 100 ppm solution diluted from the 1000 ppm stock solution prepared with K2Cr2O7. The determination of Cr(VI) was performed spectrophotometrically by the method of complexation with 1,5-diphenylcarbazide, measuring the absorbance at a 540 nm wavelength. The experiments were conducted at 25 ± 1 °C; 2, 5, 7 and 8 initial pH; 10-240 minutes contact time and 0.05 g of adsorbent. The Freundlich and Langmuir models were used to fit the experimental data. The Freundlich model provided R2=0.9599, indicating adsorption on heterogeneous conditions. Analysis of fluorescence of X-rays, SEM and FTIR were used to prove the okra powder efficiency in the removal of Cr(VI) from aqueous solutions. Keywords: Okra powder, biosorbent, removal of Cr(VI), equilibrium study.Download Full Article |
Abstract : Influence of Rootstocks (Gisela 5, Gisela 6, MaxMa, SL 64) on Performance of ‘0900 Ziraat’ Sweet Cherry
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Abstract: This study was carried out in order to determine the effect of rootstocks (Gisela 5, Gisela 6, MaxMa 14 and SL 64) on performance of sweet cherry cultivar ‘0 900 Ziraat’ during 2010-2013 years. The trail in randomized block design was established as to factorial design. Each graft combination included 20 trees. The trees was trained as Spanish Bush training system. At the end of study, effect of rootstocks on vegetative growth was found significant. It has been determined that the trees grafted on SL 64 and MaxMa 14 rootstocks were more vigorous than the those grafted on Gisela 5 and Gisela 6. The rootstocks formed significant differences at the precocity. While the first blooming on the trees grafted on Gisela 5 and Gisela 6 rootstocks occurred at the second year after planting, the first blooming on the trees on MaxMa 14 and SL 64 rootstocks occurred at fourth year after planting. It has been determined that occur significant differences on yield per tree and yield efficiency among rootstocks. In terms of yield per tree and yield efficiency, While the lowest value was in SL 64 rootstock, the highest value was recorded in Gisela 5, and it has been determined that the differences between three rootstocks (Gisela 5, Gisela 6 and MaxMa 14) were not significant. While fruits weight varied according to the rootstock used in study, the trees grafted on Gisela 5 had the smallest fruit. Accompanied with differences between MaxMa 14 and SL 64 rootstocks were not significant, the biggest fruits were produced on trees grafted on SL 64 rootstock. As a result of the statistical analysis, it has determined that the rootstocks that used in trial did not create significant differences on soluble solids content (SSC) value. One of the most significant diagnosis was 6 % mortality rate that occurred on trees grafted Gisela 5 and Gisela 6 rootstocks. Keywords: Rootstock, Gisela 5, Gisela 6, MaxMa, SL 64, Prunus avium, 0900 Ziraat.Download Full Article |
