Bio-inspired self-healing strategies are much innovative and potentially viable for the production of healable cement mortar matrix. The present research explores the feasibility of gram-positive “Bacillus subtilis” microorganisms in the... more
Bio-inspired self-healing strategies are much innovative and potentially viable for the production of healable cement mortar matrix. The present research explores the feasibility of gram-positive “Bacillus subtilis” microorganisms in the effective healing of nano-/micro-scale-induced structural and non-structural cracks. The main concern related to the survival of such microorganisms in cementitious environment has been successfully addressed by devising proficient immobilization scheme coherently. The investigated immobilizing media includes iron oxide nano-sized particles, micro-sized limestone particles, and milli-sized siliceous sand. The effect of induced B. subtilis microorganisms immobilized on nano-micro-additives was analyzed by the quantification of average compressive resistance of specimens (ASTM C109) and healing evaluation. The healing process was mechanically gauged by compressive strength regain of pre-cracked specimens after the healing period of 28 days. The pre-cr...
Objective: To compare the frequency of recurrence after surgical excision versus aspiration and injection of Steroids of wrist ganglion Study Design: Comparative cross-sectional study. Place and Duration of Study: Department of General... more
Objective: To compare the frequency of recurrence after surgical excision versus aspiration and injection of Steroids of wrist ganglion Study Design: Comparative cross-sectional study. Place and Duration of Study: Department of General Surgery at Combined Military Hospital, Kohat Pakistan, from Sep 2018 to Aug 2019. Methodology: Seventy patients reported to the Outpatient Department, Combined Military Hospital, Kohat Pakistan, with complaints of ganglion and wanted treatment. Patients were randomly allocated into two Study Groups 1 and 2, by lottery method. Group-1 was treated by aspiration of the cyst contents followed by Steroid injection, while Group-2 was by excisionof the ganglion surgically under a local anaesthetic agent. The patient was followed up after three months to look for recurrence in both groups. Results: The frequency of recurrence was 34.29% in Group-1 and 5.71% in Group-2, (p-value was less than 0.001). Conclusion: Surgical excision results in lesser recurrence w...
