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Search Results: 1 - 10 of 7063 matches for " Muhammad Aleem "
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Percentile Analysis of Probability Density Function of the Concomitants of Lower Record Values from Bivariate Inverse Rayleigh Distribution
Muhammad Aleem
Lecture Notes in Engineering and Computer Science , 2012,
mitants of Order Statistics from Bivariate Inverse Rayleigh Distribution
Muhammad Aleem
Pakistan Journal of Statistics and Operation Research , 2006, DOI: 10.1234/pjsor.v2i1.85
Abstract: The probability density function (pdf) of the rth, 1 r n and joint pdf of the rth and sth, 1 r
Sajid Iqbal, Muhammad Aleem and Muhammad Amir Saeed
Pakistan Veterinary Journal , 2003,
Abstract: In the present study, 20 Nili-Ravi buffaloes were divided into two equal groups. Group A buffaloes (treatment group) were administered with prostaglandin F2 alpha (Lutalyse, Upjohn), 2 hours after calving while the group B buffaloes were not given any treatment and designated as control. The reproductive organs of each experimental buffalo were rectally palpated on days 14 and 21 postpartum, followed by twice a week rectal palpation until the first postpartum oestrus. The results revealed that cervical and uterine involution was completed significantly (P< 0.05) earlier in-group A as compared to group B (28.90 ± 1.79 vs. 35.40 ± 3.95 days). There was no difference in the diameter of cervices and gravid and non-gravid uterine horns at day 14 postpartum. A significant difference between the groups was obtained on days 21, 25, 28 and 32 postpartum in the diameter of cervices and gravid horns (on days 21, 25 and 28). The overall period required for complete regression of corpus luteum of pregnancy was 19.20 ± 4.87 days in treated group and 18.40 ± 6.07 days in control group, the difference was non-significant (P>0.05). Follicular activity resumed independently of uterine involution. It was however, delayed slightly by the retained corpus luteum of pregnancy. The mean postpartum interval of initial follicular development was 21.20 ± 5.71 days in treated and 28.20 ± 8.75 days in control groups, respectively. The difference was statistically significant (P< 0.05). Postpartum oestrus interval was shortened in treated group (79. 50 ± 19.83 days) as compared to control group (103.0 ± 17.45 days) and the difference was significant (P< 0.05). So it seems beneficial to administer prostaglandin F2 alpha in postpartum buffaloes to reduce the period for uterine involution and enhance the subsequent reproductive performance.
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.
Dystocia in Blackbucks (Antilope cervicapra)
Hasan Riaz, Nasim Ahmad* and Muhammad Aleem
Pakistan Veterinary Journal , 2012,
Abstract: Four blackbucks, 4-6 years of age were handled for dystocia with a history of straining and without successful delivery. Clinical examination revealed normal vital parameters, partially opened cervix and dry birth canal. Water bags were ruptured in all cases. In three out of four cases (75%), the fetus was extracted out using standard obstetrical operations; however, one fetus (25%) was taken out using fetotomy. All fetuses were dead after assisted delivery. Three out of four (75%) dams were found active and behaved normally after delivery, however, one dam (25%) died soon after obstetrical procedure. It was concluded that dystocia in blackbucks can be effectively handled on similar lines as in caprines and timely veterinary assistance is required in order to save the newborns.
Taxonomic Study and Medicinal Importance of Three Selected Species of the Genus Artemisia Linn
Rizwana Aleem Qureshi,Mushtaq Ahmad,Muhammad Arshad
Asian Journal of Plant Sciences , 2002,
Abstract: The study was confined to the 3 medicinally important species of the genus Artemisia Linn. The morphological features, such as, plant size, leaf-shape and size, petiole length, the inflorescence type and the details of capitulum, i.e., the disc and ray florets were studied from the herbarium specimens preserved in the Quaid-I-Azam University Herbarium. Many properties and the uses of these species were determined. The studies on morphological characters revealed that the characters like, heads either homogamous or heterogamous and the receptacle either glabrous or hairy, number of the florets per head were taxonomically most important to differentiate these species. Among these species it was observed that A. absinthium Linn. was mostly used against liver diseases.
Ethnobotanical and Phytosociological Studies of Tehsil Gujar Khan District Rawalpindi
Rizwana Aleem Qureshi,Ijaz Ahmad,Muhammad Ishtiaq
Asian Journal of Plant Sciences , 2006,
Abstract: Tehsil Gujar Khan is a typical example of Potohar region characterized by the natural beauty and specific cultural heritage. Only one family represented Pteridophytes, Gymnosperms by three families and Angiosperms by 66 families (10 monocots and 56 dicots). About 271 plants were enlisted from the study area in which 206 species of plants (76.01%) are herbs, species are trees (16.60%) and about 20 species are shrubs (07.38%). As for as conservation status of plants species is concerned 8.12% are abundant, 4.65% common, 2.14% uncommon, .71 rare and 7.38% of species are very rare. The results of utilization of plants showed that some plants have multiple uses. Based on utility, there were 197 medicinal plants (72.69%), whereas 76 species (28.04%) served as fodder and forage for animals, 2 species (15.49%) were used as fuel wood, species (17.34%) served for attracting honey bees, 2 species (11.81%) were used as vegetables and pot herbs, species (12.91%) used for thatching, sheltering and roofing, 1 species (11.43%) were planted as ornamental, species (9.96%) used for making various agricultural appliances and ropes, 1 species (07.74%) were timber yielding, 0 species (7.38%) were used for fencing and hedges whereas 22 species (08.11%) each were serving for the Category of fruit yielding plants. Lastly 7 species (02.58%) were serving as a source of spices and condiments. The species within a stand were arranged on the basis of importance values and named after the three leading species with the highest importance value as dominant; the closely approaching species were considered as co-dominant and followed by associated and rare species on the basis of I.V. So following four communities were found namely, Acacia-Aristida -Gnaphalium community, Poa-Acacia-Cymbopogon Community, Inula-Tamarix-Chenopodium community and Acacia-Prosopis-Imperata Community.
Assessment of Heritable Variation and Best Combining Genotypes for Grain Yield and Its Attributes in Bread Wheat  [PDF]
Nusrat Parveen, Amna Kanwal, Etlas Amin, Fariha Shahzadi, Saba Aleem, Mehvish Tahir, Abia Younas, Rasheda Aslam, Nafeesa Aslam, Iqra Ghafoor, Mehvish Makhdoom, Muhammad Amin Shakir, Muhammad Najeebullah
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.98122
Abstract: Grain yield in wheat is the resultant of several plant attributes. It is very important to assess heritable variation involved in the inheritance of these attributes in addition to find the best combining genotypes. For this purpose, the present study involving 5 × 5 full diallel analysis was performed. Twenty F1 hybrids along with their parents (9797, 9801, 9802, Chakwal-50 and Chakwal-86) were planted in field using randomized complete block design (RCBD) with three replications in the research area of Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad during 2015-2016. Plant characters like plant height, flag leaf area, spike length, No. of fertile tillers per plant, No. of grains per spike, No. of spikelets per spike, 1000 grain weight and grain yield per plant were studied in this experiment. Mean squares due to general combining ability (GCA) were highly significant for all the traits except for spike length for which GCA effects were significant. Mean squares due to specific combining ability (SCA) and reciprocal combining ability (RCA) were highly significant for all the characters studied. GCA variance was higher than the SCA variance for spike length and No. of grains per spike exhibiting the predominant role of additive genetic variation in the inheritance of these traits. However, for the characters like plant height, flag leaf area, No. of fertile tillers per plant, No. of spikelets per spike, 1000 grain weight and grain yield per plant, the value of SCA variance was higher than the value of GCA variance showing non additive gene action for these traits. The variety Chakwal-50 proved to be the best general combiner for plant height, spike length, No. of spikelets per spike, No. of grains per spike and grain yield per plant. The cross, 9802
3-Hydroxy-1,2,3,9-tetrahydropyrrolo[2,1-b]quinazolin-4-ium chloride dihydrate: (+)-vasicinol hydrochloride dihydrate from Peganum harmala L
Amir Muhammad Khan,Ghulam Abbas,Rizwana Aleem Qureshi,Uzma Khan
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809003766
Abstract: The title compound, C11H13N2O+·Cl ·2H2O, the dihydrate of (+)-vasicinol hydrochloride, is a pyrrolidinoquinazoline alkaloid. It was isolated from the ethyl acetate fraction of the leaves of Peganum harmala L. The pyrrolidine ring has an envelope conformation with the C atom at position 2 acting as the flap and the C atom at position 3, carrying the hydroxyl substituent, has an S configuration. The absolute configuration was determined as a result of the anomalous scattering of the Cl atom. In the crystal structure, molecules stack along the a axis, connected to one another via intermolecular O—H...Cl and N—H...Cl hydrogen bonds, forming approximately triangular-shaped R21(7) rings, and O—H...Cl and O—H...O hydrogen bonds, forming pentagonal-shaped R54(10) rings. The overall effect is a ribbon-like arrangement running parallel to the a axis.
Impact of Democratic/Non-Democratic Regimes on Foreign Direct Investment in Pakistan: Pre and Post September 11, 2001 Scenarios
Tahir Nawaz,Masood Amjad khan,Muhammad Akbar Ali Shah,Muhammad Aleem
Pakistan Journal of Commerce and Social Sciences , 2012,
Abstract: In this study the impact of democratic and non-democratic regime (pre and post September 11, 2001seenarios) on foreign direct investment in Pakistan have been investigated using quarterly data over the period of 1976Q1 to 2006Q4. Stepwise regression, Box-Jenkins methodologies have been applied initially then GARCH-type models are used to counter the problems of auto-correlation and ARCH effect and tomodel the conditional variance of FDI. It is found that foreign direct investment in Pakistan mainly depends upon on the past trends, as higher order auto-regressive terms are statistically significant. It has also been observed that the volatility shocks are quitepersistent and take a long time to die out. September 11, 2001incident and thereafter war on terror has increased the conditional volatility of foreign direct investment and hasstatistically significant impact while FDI was not volatile before the September, 11, 2001. CPI plays a significant role to decrease conditional volatility. One interesting finding of this study is that the impact of Non-Democratic regime before September, 11 scenario isstatistically significant and severely bad on foreign direct investment but with the inclusion of observations of post September, 11 the variable becomes insignificant.
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