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Search Results: 1 - 10 of 326881 matches for " S. Mahmood "
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A Study of Planting Method and Spacing on the Yield of Potato Using TPS
S. Mahmood
Asian Journal of Plant Sciences , 2005,
Abstract: An experiment was carried out at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh to investigate the effect of planting method and spacing on the yield of potato using Cv. BARI TPS-2. The experiment consisted of (a) two planting methods viz., transplanting and direct sowing in the field, (b) two planting systems viz., single row and double row system and (c) three spacing viz., 50x5, 50x10 and 50x15 cm. The experiment was laid out in RCBD with 3 replications. Transplanting method produced the highest yield (46.09 t ha-1) by increasing plant height, fresh and dry weight of foliage and number and weight of tubers per plant than the direct sowing method (32.00 t ha-1). Double row system of planting and the plant spacing 50x5 cm produced the maximum yield 41.67 and 42.32 t ha-1, respectively. Transplanting with double row system gave the highest yield (48.98 t ha). Whereas, the transplanting with 50x5 cm spacing produced the maximum yield (50.72 t ha-1). The highest yield 44.19 t ha-1 was produced by the combination of double row and 50x5 cm. The combination of planting method, planting system and spacing produced marked effect on all parameters studied, being the highest yield (52.62 t ha-1) in the combination of transplanting, double row and 50x5 cm spacing.
A remark on the intersection of the conjugates of the base of quasi-HNN groups
R. M. S. Mahmood
International Journal of Mathematics and Mathematical Sciences , 2004, DOI: 10.1155/s0161171204309191
Abstract: Quasi-HNN groups can be characterized as a generalization of HNN groups. In this paper, we show that if G∗ is a quasi-HNN group of base G, then either any two conjugates of G are identical or their intersection is contained in a conjugate of an associated subgroup of G.
On centralizers of elements of groups acting on trees with inversions
R. M. S. Mahmood
International Journal of Mathematics and Mathematical Sciences , 2003, DOI: 10.1155/s0161171203205305
Abstract: A subgroup H of a group G is called malnormal in G if it satisfies the condition that if g∈G and h∈H, h≠1 such that ghg−1∈H, then g∈H. In this paper, we show that if G is a group acting on a tree X with inversions such that each edge stabilizer is malnormal in G, then the centralizer C(g) of each nontrivial element g of G is in a vertex stabilizer if g is in that vertex stabilizer. If g is not in any vertex stabilizer, then C(g) is an infinite cyclic if g does not transfer an edge of X to its inverse. Otherwise, C(g) is a finite cyclic of order 2.
On fundamental domains in groups acting on connected graphs
R. M. S. Mahmood
International Journal of Algebra , 2012,
Abstract:
Assessment of Indoor Radon Concentrations in Dwellings for Baghdad Governorate by Using RAD-7 Detector  [PDF]
Mahmood S. Karim, Hasan H. Daroysh, Ali N. Mohammed
Detection (Detection) , 2016, DOI: 10.4236/detection.2016.42006
Abstract: In the present work, radon gas concentrations in different dwellings in Baghdad governorate are measured by using RAD-7 detector. The results have shown that, the radon gas concentrations ranged between (40.67 ± 3.1 Bq/m3) to (190.00 ± 2.7 Bq/m3) with an average value (113.66 ± 30.2 Bq/m3); in the first one we draw the map radiations for indoor radon gas concentrations in Baghdad governorate. We would like to mention that the present study is considered to be very important and vital because it is concerned with people health and safety in the first place.
Experimental histopathological study of chicks infected with Cryptosporidium baileyi isolated from wild pigeons in Mosul
S. S. Al-Mahmood
Iraqi Journal of Veterinary Sciences , 2011,
Abstract: The aim of this study was to investigate naturally occurring cryptosporidiosis in pigeons in Mosul city as well as the pathology of experimental C. baileyi infection in chicks. Prevalence of the naturally occurring cryptosporidiosis in the pigeons was 30% according to morphological features of the isolated oocysts and distribution of the lesions of the experimental infection in chicks, the cryptosporidium was diagnosed as C. baileyi. Using a dose of 1000 oocysts, the infection was induced in chikens. Oocysts shedding was noted in the infected chickens at the 7th post – infection (p.i.) day and increased till the 15th p.i. day. Infected chicks showed dullness and anorexia. Microscopically p.i. day 7, there were necrosis of the tips of some of the intestinal villi, mucinous degeneration of the intestinal mucosa, and the presence of large numbers of the parasite in the tips of the intestinal villi. On p.i. day 10, necrosis of the tips of the villi was more extensive and the necrotic cells were sloughed into the lumen and accumulated as debris. Inflammatory mononuclear cells were seen infiltrating the various layers of the intestine. Similar but more extensive lesions were seen on p.i. day 15.
Variational approach to dynamics of bright solitons in lossy optical fibers
M. F. Mahmood,S. Brooks
International Journal of Mathematics and Mathematical Sciences , 2003, DOI: 10.1155/s0161171203201277
Abstract: A variational analysis of dynamics of soliton solution of coupled nonlinear Schrödinger equations with oscillating terms is made, considering a birefringent fiber with a third-order nonlinearity in the anomalous dispersion frequency region. This theoretical model predicts optical soliton oscillations in lossy fibers.
AN ANALYTICAL STUDY OF STRESS MANAGEMENT ON EXECUTIVES IN LUCKNOW CITY AND NEW PERSPECTIVES FOR UNDERSTANDING STRESS IN ORGANIZATIONAL CONTEXT
S. Athar Mahmood,Gaurav Bisaria
Lex et Scientia , 2008,
Abstract: The contingencies of modern life have changed the scenario for people today. New aspects have crept into life styles due to hectic work schedules and pressures. Stress is one such aspect that is receiving unprecedented attention from practitioners and academicians alike. Needless to say, stress is present in every one but shows up in some people more than others, the cause of which is a wide area of research. This paper aims to fill in the above mentioned information by investigating the causes of stress on executives. In the initial part of the paper, stress is discussed in detail and supported by information and facts. Some remedies to counter stress are also mentioned. In second part, the research and its findings are described which was conducted on executives in Luck now city. The results are shown through figures as well as described in detail. The main causes of stress are listed out as shown through the research. Based on this research, three new perspectives have been developed to understand stress in organizational context. The first approach is quantitative in nature and includes certain important variables like bad performance, inter personal relations, health problems and obsolescence. The second approach is qualitative in nature and depicts how stress aggravates in people. The final approach describes a sort of tussle between stress and ‘anti stress’ measures and hence is termed as Counter Balance approach. Conclusions are drawn from the research as well as from the new proposed perspectives and include a complete picture of how stress is being tackled by executives themselves as well as from efforts by organizations.
COMPARATIVE EFFICACY OF RT-PCR, AGPT AND REVERSE PASSIVE HAEMAGGLUTINATION ASSAY FOR THE DETECTION OF INFECTIOUS BURSAL DISEASE VIRUS IN BROILERS
M. S. MAHMOOD AND M. SIDDIQUE
Pakistan Veterinary Journal , 2006,
Abstract: The reverse transcription polymerase chain reaction (RT-PCR), reverse passive haemagglutination assay (RPHA) and agar gel precipitation test (AGPT) were compared for the detection of infectious bursal disease virus (IBDV) in various organs of experimentally infected broilers. RT-PCR and RPHA required a time of 8 and 1 hour, respectively, whereas AGPT showed precipitation reaction at least after 24-48 hours of incubation. RT-PCR and RPHA were found sensitive to detect IBDV in tissues, whereas AGPT was less sensitive in the detection of IBDV. The RT-PCR was significantly more sensitive to detect IBDV as compared to RPHA, which was significantly more sensitive than AGPT in bursa of Fabricius, liver, kidneys, spleen and thymus samples. RPHA has given economical results for the detection of IBDV in samples from various organs and can be used in field conditions. However, RT-PCR was found to be the most sensitive test among the three tests compared in this study.
Hopkinson peak and superparamagnetic effects in BaFe12-xGaxO19 nanoparticles
Mahmood S. H.,Bsoul I.
EPJ Web of Conferences , 2012, DOI: 10.1051/epjconf/20122900039
Abstract: In this article, the thermomagnetic properties of a system of Ga-substituted barium hexaferrite nanoparticles (BaFe12-xGaxO19) prepared by ball milling were investigated. The thermomagnetic curves for the samples with x ranging from 0.0 to 1.0 exhibited sharp peaks with high magnetization just below TC (Hopkinson peaks). The height of the peak for our samples was similar or larger than previously observed or calculated values. Theoretical treatment of the experimental data demonstrated that the peaks are due to the effect of superparamagnetic relaxations of the magnetic particle. This effect was confirmed by hysteresis measurements at, and just below the temperature at which the peak occurred. Consequently, the particle diameters were calculated from the experimental data using a theoretical model based on the superparamagnetic behavior of a system of uniaxial, randomly oriented, single domain, non-interacting particles. The calculated diameters of 11 – 26 nm are less than the physical diameters determined from TEM measurements. The factors responsible for the low calculated values are discussed.
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