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Search Results: 1 - 10 of 3048 matches for " Ghulam Abbas "
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Ghulam Abbas
The Professional Medical Journal , 2000,
Abstract: A study was conducted at Medical Unit-I Allied Hospital/Punjab Medical College, Faisalabad to evaluateendoscopically 272 patients presenting with upper GI bleeding during the year 1999. The age of patients rangedbetween 10 to 70 years with mean age of 50 years. Sex incidence was 170 males and 102 females giving amale to female ratio of 1.6:1. Oesophagogastroduodenoscopy revealed oesophageal varices in 90(33.08%),duodenal ulcer in 49(18.01%), acute gastritis/erosions in 48(17.64%), oesophagitis in 24(8.82%), gastric ulcerin 20(7.35%), carcinoma of stomach in 6(2.2%), carcinoma of oesophagus in 4(1.47%) and duodenitis in3(1.1%) patients presenting with upper GI bleeding. In 24(8.82%) patients the cause of bleeding could notbe detected because of limitation of resources. Oesophageal varices were the only lesion in 55(61%) whilecoexistent lesions were present in 35(39%) patients, that is portal hypertensive gastropathy in 20(22.22%),peptic ulcer in 10(11.11%), portal hypertensive gastropathy and peptic ulcer both in 4(4.44%) and MalloryWeiss tear in 1(1.11%) patients. These coexistent lesions were responsible for bleeding in only 10(11.11%)patients and majority of patients were bleeding from oesophageal varices.
Towards Optimal Joint Network Management and Flow Control
Ghulam Abbas
International Journal of Computer & Electronics Research , 2012,
Abstract: This paper presents a State Estimation based Internet flow control and network management system where the objective is to maximize the aggregate bandwidth utility of network sources over their transmission rates. The network links and sources are viewed as processors of distributed computation and the control mechanism is based on estimation and optimization framework to solve the dual problem. The novelty of the proposed approach is that it allows network sources to estimate link bandwidth prices, based on the network state, rather than depending on the continuous price feedback from the network links. This is primarily to reduce the computational and communicational overhead of the routing process and to enable efficient resource allocation. The estimation framework also serves as a Network Management System to control hardware malfunctions, improves network monitoring and eliminates anomalies, such as measurement noise and other discrepancies between network system models that typically leads to poor network performance. The approach is validated using two scenarios in congestion and rate control which demonstrate favorable results in terms of enhanced data delivery with fewer packet losses and retransmissions. Moreover, the improved optimization framework in turn improves on network stability and responsiveness by allowing reduced buffer occupancy over congested links, which further enables low packet loss and low service delays.
Prostate specific antigen levels in pre-dialysis chronic kidney disease patients
Hussain Shahid,Abbas Ghulam
Saudi Journal of Kidney Diseases and Transplantation , 2010,
Charged Perfect Fluid Cylindrical Gravitational Collapse
Muhammad Sharif,Ghulam Abbas
Physics , 2011, DOI: 10.1143/JPSJ.80.104002
Abstract: This paper is devoted to study the charged perfect fluid cylindrical gravitational collapse. For this purpose, we find a new analytical solution of the field equations for non-static cylindrically symmetric spacetime. We discuss physical properties of the solution which predict gravitational collapse. It is concluded that in the presence of electromagnetic field the outgoing gravitational waves are absent. Further, it turns out that when longitudinal length reduces to zero due to resultant action of gravity and electromagnetic field, then the end state of the gravitational collapse is a conical singularity. We also explore the smooth matching of the collapsing cylindrical solution to a static cylindrically symmetric solution. In this matching, we take a special choice of constant radius of the boundary surface. We conclude that the gravitational and Coulomb forces of the system balance each other.
Effect of Selected Insecticides on Helicoverpa armigera Hubner (Lepidoptera: Noctuidae) on Tomato (Lycopersicon esculentum Miller) and Their Successful Management  [PDF]
Ghulam Abbas, Najamul Hassan, Muhammad Farhan, Ikramul Haq, Haider Karar
Advances in Entomology (AE) , 2015, DOI: 10.4236/ae.2015.31003
Abstract: Helicoverpa armigera H. is a polyphagous notorious pest of a number of economic crops including tomato. In tomato, it can reduce its yield as high as 70% due to fruit boring. Although some predators and parasitoids have been recorded in the field for their natural control, their manipulation to a successful crop management is still awaited. To overcome this pest, insecticides play a significant role in its effective crop management program globally. Tomato is an absolutely perishable commodity and needs the specified period required between the application, of conventional pesticides of organophosphate group, and consumption which can hardly be afforded. Therefore, nine insecticides from the new chemistries, which were relatively safer to human and environment, i.e. Coragen (chlorantraniliprole), steward (indoxacarb), Belt (flubendamide), Delegate (spintoram), Volium Flexy (chlorantraniliprole + thiamethaxim), Fipronil (grafter), Proclaim (emamectin benzoate), Pirate (chlofenapyr) and Lufenuron (lufenuron), were tested on tomato crop heavily infested by this pest in the farmers field in districts Lodhran and Bahawalpur (Pakistan) in the month of April 2014. The mortality was compared after 4, 7 and 10 days and treatments were compared with control as well with one another. The average maximum % mortality, i.e. 89.36 and 85.09 of the pest, was observed with Volium Flexy, and Delegate also worked well even after 7 and 10 days. Similarly, the results on the basis of damaged fruits and percent loss of yield pointed out that Chlorantraniliprole, Flubendiamide and Indoxacarb had resulted better as compared with others, although the difference was statistically non significant. These new chemistry pesticides are suggested to be used at tomato crop against Helicoverpa armigera which are best fitted in the IPM program for the control of the pest.
Zerotillage Sowing Method of Wheat Followed by Transplanted Rice (In Rice-Wheat System
Ghulam Abbas Khuhro,Ghulam Sarwar Tunio,Nizamuddin Maitlo,Nihaluddin Mari
Journal of Applied Sciences , 2002,
Abstract: This study was conducted at the Rice Research Institute Dokri for three years from Rabi 1997-98 to 1999-2000. The object of this study was to compare zerotillage-sowing method of wheat with conventional method for grain yield and net benefit. Zerotillage sowing method gave 8.30% more yields than conventional method. Moreover tillage cost was reduced up to 8 % while increase in net benefit 28 % was achieved. Economically zerotillage-sowing method proved better with CBR 1.25 than conventional method with CBR 0.926.
Seasonal Abundance of Aphids and Aphidophagous Insects in Pecan
James D. Dutcher,Haider Karar,Ghulam Abbas
Insects , 2012, DOI: 10.3390/insects3041257
Abstract: Seasonal occurrence of aphids and aphidophagous insects was monitored for six years (2006–2011) from full leaf expansion in May to leaf fall in October in “Desirable” variety pecan trees that were not treated with insecticides. Aphid outbreaks occurred two times per season, once in the spring and again in the late summer. Yellow pecan and blackmargined aphids exceeded the recommended treatment thresholds one time and black pecan aphids exceeded the recommended treatment levels three times over the six seasons. Increases in aphidophagous insect abundance coincided with aphid outbreaks in five of the six seasons. Among aphidophagous insects Harmonia axyridis and Olla v-nigrum were frequently collected in both the tree canopy and at the ground level, whereas, Coccinella septempunctata, Hippodamia convergens were rarely found in the tree canopy and commonly found at the ground level. Green lacewing abundance was higher in the ground level than in the tree canopy. Brown lacewings were more abundant in the tree canopy than at the ground level. Dolichopodid and syrphid fly abundance, at the ground level increased during peak aphid abundance in the tree canopy. Application of an aqueous solution of fermenting molasses to the pecan foliage during an aphid outbreak significantly increased the abundance of ladybeetles and lacewings and significantly reduced the abundance of yellow pecan, blackmargined and black pecan aphids.
Water Pollution in Fim Kassar Well 1A
Ghulam Abbas,Muhammad Yousaf,Rizwana Aleem Qureshi
Pakistan Journal of Biological Sciences , 2006,
Abstract: The present study has been conducted to determine the water quality and estimation of heavy metals of Fim Kassar Nallah. The water quality parameter including Hardness, Alkalinity, Total Suspended Solids and pH. The water samples were collected from the selected site for the period of six month from January to June 2005 on monthly basis. The data indicates that the amount of total suspended solids and electrical conductivity is not suitable for aquatic life. The values of pH were found more or less same during the six months. The values of total suspended solid were found to be higher during the month of June while there is no significance difference could be found between dissolved oxygen. The heavy metals including Copper, Zinc, Lead and Cadmium were tested by using Atomic Absorption Spectrophotometer. The data show that there is no significance difference among the concentration of heavy metals. The level of Copper and Zinc were found to be tolerable range which is 2 and 5 mg L-1 respectively, while the values of Cadmium and Lead were found higher than tolerable range for aquatic life which were 0.005 and 0.015 mg L-1, respectively.
Effect of Antiviral Therapy on Hepatitis C Virus Related Glomerulopathy
Abbas Ghulam,Hussain Shahid,Shafi Tahir
Saudi Journal of Kidney Diseases and Transplantation , 2008,
Abstract: To determine the efficacy of antiviral therapy in hepatitis C virus associated glome-rulopathy, we studied 30 patients with HCV-associated glomerulopathy at Sheikh Zayed Hospital, Lahore, Pakistan from June 2004 to February 2007. Membranoproliferative glomerulonephritis (MPGN) was the commonest kidney lesion, being reported in 25/30 (83%), followed by membra-nous glomerulonephritis (MGN) in 3/30 (10%) and mesangioproliferative glomerulonephritis (MesGN) in 2/30 (7%). Cryoglobulinaemia was positive in 8/20 (40%) cases. Most common HCV genotype was 3a. All the patients received interferon alpha combined with ribavirin therapy for 6-12 months based on viral genotypes and doses were adjusted according to renal function. Anti-viral response was achieved in the form of aviremia at completion of 6 months treatment in 8/30 (26.6%), decreased transaminases levels from a mean of 96.4 ± 72.2 to 60.1 ± 44.3 IU/L, p= 0.005, 24-hour proteinuria decreased significantly from a mean of 4.8 g to 1.20 g, p= 0.001, and complement C3 and C4 concentrations returned to normal in those subjects who responded to treatment. The rate of relapse was 50%. We conclude that though the overall antiviral response of HCV was not high, there was a significant reduction in proteinuria suggesting indirectly an improvement in renal patho-logy. Further studies with large number of patients with follow-up renal biopsies are warranted.
Soil Fertility Status of Quaid-i-Azam University Islamabad, Pakistan
Sohail Jamil Qureshi,Ghulam Abbas,Sofia Bano
Journal of Biological Sciences , 2001,
Abstract: A study was conducted to investigate the soil fertility status of Quaid -I- Azam University Campus Islamabad for the provision of guidelines to researchers and farmers for better crop production. A total of thirty composite soil samples were collected, analyzed and classified for texture, soil pH, electrical conductivity (EC), organic matter, available phosphorus and potassium. Texture of the soil varied, sandy loam (10%), loam (47%), and clay loam (43%). The pH values ranged between 6.9-8.5.Out of total all soil samples were normal with no hazard of salinity. Organic matter was deficient or poor in 93% samples and satisfactory in 7% samples. Available phosphorus was poor in 77% samples, satisfactory in 3% samples and adequate in 20% samples. In available potassium 60% soils in Quaid -I- Azam University have satisfactory level and 40% samples fall in adequate level. Fertilizer recommendations were advised according to soil condition and fertility status of the soil.
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