http://localhost:80/xmlui/handle/123456789/12766 Sat, 18 Apr 2026 14:33:58 GMT 2026-04-18T14:33:58Z http://localhost:80/xmlui/handle/123456789/19086 Title: AN EFFICIENT ALGORITHMIC SOLUTION FOR AUTOMATIC SEGMENTATION OF LUNGS FROM CT IMAGES Authors: F. Shaukat; G. Raja Abstract: A novel technique for lung segmentation from input Computed Tomography (CT) images using optimal hresholding was developed. Initially, the CT image was segmented by optimal thresholding. The lung volume was obtained using connected component labeling method by removing irrelevant information. The resultant image contained holes which were filled by morphological operations. A novel technique to separate the lungs was introduced which effectively separated the right and left lungs. Finally, the lung contour was smoothed by rolling ball algorithm to include any juxta pleural nodules. The proposed system was evaluated using 84 scans of publicly available dataset Lung Image Database Consortium (LIDC). The proposed system achieved an overlap measure of 0.985 and the root mean square difference between the proposed method and ground truth was 0.47 mm. Sat, 10 Mar 2018 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/19086 2018-03-10T00:00:00Z http://localhost:80/xmlui/handle/123456789/19071 Title: CONTENT DOMAIN AND STRATEGY FOR TEACHING LINKED LIST IN PEDAGOGICALLY EFFECTIVE MANNER Authors: M.S. Farooq; A. Abid; U. Farooq; I. Saleem Abstract: The objective of this study was to address the problem of effectively teaching linked list, which was a core topic of data structure course. For this purpose, a survey based methodology was adopted to define the ontent domain and a teaching strategy for this topic. Among the contributions of this research, firstly, the content omain of the topic was defined using a taxonomy comprising of sub categories that included structure of a inked list; implementation variants; persistence of a linked list; and advanced complex variants. Secondly, the relative importance of the sub-topics in the content domain was also defined by conducting a survey form eachers and students. It was observed that out of thirteen subtopics, only seven should be covered in the first course of data structure, while the rest of the six topics could be provided as optional reading material. Mon, 12 Mar 2018 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/19071 2018-03-12T00:00:00Z http://localhost:80/xmlui/handle/123456789/19070 Title: GEOGRAPHICAL INFORMATION SYSTEM BASED WATERSHED DELINEATION IN SOUTHERN HARIPUR TEHSIL KHYBER PAKHTUNKHWA PROVINCE, PAKISTAN Authors: R. Jamal; S.R. Ahmad; K. Khan Abstract: Presented study was to delineate the main watersheds and sub watersheds of Southern Haripur Tehsil, using the GIS (Geographical Information System) techniques. In this study, Arc GIS 9.3 software, spatial Analyst and Arc Hydro tool extension was used to delineate the watershed areas of Southern Haripur Tehsil in detail. DEM (Digital Elevation Model) data of SRTM (Shuttle Radar Topographic Mission) having 90 by 90 meter resolution of USGS was used for this watershed analysis. It was find out that the Southern Haripur Tehsil is comprised of 7 main watersheds out of which atershed of Dor River contributes to Tarbela dam, 35 sub-watersheds out of which one contributes to hanpur dam, No. of streams of watersheds, their drainage pattern, drainage points, trace origins and areas in Sq.Km of main and sub watersheds of Southern Haripur Tehsil. Wed, 14 Mar 2018 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/19070 2018-03-14T00:00:00Z http://localhost:80/xmlui/handle/123456789/19069 Title: ANTIMICROBIAL AND LARVICIDAL POTENTIAL OF SWEET BASIL (OCIMUM BASILICUM L.) EXTRACTS AGAINST LYMPHATIC FILARIASIS VECTOR CULEX QUINQUEFASCIATUS Authors: I. Laraib; F.A. Raza; A. Kiran; I. Sajid Abstract: This study was designed to evaluate the antimicrobial and insecticidal potential of the extracts of medicinal plant Ocimum basilicum (basil). The plant parts including roots, leaves and shoots were dried and grinded into fine powder. Ethanol and acetone were used for crude extraction and later on extracts were dissolved in methanol. The antimicrobial activity of the extracts was determined by disc diffusion and agar well diffusion assays. The toxicity of the extracts was determined hrough microwell cytotoxicity assay against Artimia salina. Finally, insecticidal potential of the extracts was determined by larvicidal assay against Culex quinquefaciatus mosquito. The methanolic extracts exhibited an impressive antimicrobial activity against various Gram-positive and Gram-negative bacterial test strains. A promising larvicidal activity against Culex quinquefaciatus larvae was observed with larval mortality up to 80-90% in 48 hours. LC50 value for leaf extracts after 24 hours of exposure was 0.4 ppm and LC90 of 6.3 ppm. In contrast, lower cytotoxicity (35%) was observed against brine shrimp (Artemia salina) larvae after 24 hours of exposure. The chemical screening by TLC and HPLC/UV showed that the methanolic extracts contain active molecules belonging to various plants metabolites including indols, alkaloids and flavonoids. The study revealed that the extracts of Oscimum bacillicum could be exploited commercially as antimicrobials and as insecticides. Wed, 07 Mar 2018 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/19069 2018-03-07T00:00:00Z