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Search Results: 1 - 10 of 401451 matches for " M. Afzal "
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Re-designing Smallholder Dairy Production in Pakistan
M. Afzal
Pakistan Veterinary Journal , 2010,
Abstract: No Abstract
Pakistan Veterinary Journal , 2009,
Abstract: No abstract
Active Learning
M. Nasir Afzal
Al Ameen Journal of Medical Sciences , 2010,
Global Warming: A Public Health Concern
Brenda M. Afzal
Online Journal of Issues in Nursing , 2007,
Abstract: Over the last 100 years the average temperature on the Earth has risen approximately 1oFahrenheit (F), increasing at a rate twice as fast as has been noted for any period in the last 1,000 years. The Arctic ice cap is shrinking, glaciers are melting, and the Arctic permafrost is thawing. There is mounting evidence that these global climate changes are already affecting human health. This article provides a brief overview of global warming and climate changes, discusses effects of climate change on health, considers the factors which contribute to climate changes, and reviews individual and collective efforts related to reducing global warming.
Effect of Abiotic Factors Against the Infestation of American Bollworm (Heliothis armigera Hub.) on Different Varieties of Cotton under Unsprayed Conditions
Bilal Saeed Khan,M. Afzal,M. Afzal Murtaza
Journal of Biological Sciences , 2003,
Abstract: The study was conducted at Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad. There were eight cotton varieties namely, N-K, K-I, K-2, FH-109, MNH-554, N-86, N-98 and CIM-482. The study was conducted to see the effect of abiotic factors against the infestation fluctuation of American bollworm on different nectarid and nectariless cotton varieties under unsprayed conditions. American bollworm infestation on squares and green bolls was maximum on N-98 and CIM-482 in 2nd and last week of September, when the temperature was 32.06 and 30.11oC, relative humidity o ranges from 59.21 and 57.42% and rainfall was only 0.10 and 0.0 mm. The minimum infestation was recorded on nectariless varieties i.e., K-1, N-K and K-2 in the month of August. The results concluded that correlation between infestation and weather factors indicated that temperature and relative humidity affected positively while the rainfall was negatively correlated on different varieties under unsprayed conditions.
Growth Esponses of Various Chrysanthemum Cultivars Propagated Through Soft Wood Cuttings
M. Jamil Ahmed,Abida Afzal
Asian Journal of Plant Sciences , 2003,
Abstract: Eight cultivars of chrysanthemum namely, `Korean hybrid white`, `Single pink` `Spready purple`, `Korean hybrid yellow`, `Anemone red`, `Single red`, `Reflex light yellow` and `Single magenda` were evaluated for their responses to propagation through soft wood. Studies were carried at University College of Agriculture, Rawalakot during 2001-2002. Among these cultivars `Single magenda` showed maximum survival percentages (100%). `Reflex light yellow` and `Anemone red` presented good survival percentages (83.33%). `Single pink` showed survival percentages of (75.0). `Single red` and `Korean hybrid white` responded equally (66.66). `Spready purple` and `Korean hybrid yellow` presented survival percentages of 58.3 and 50.0 respectively. For other growth characteristics `Reflex light yellow` produced maximum branches (10.66), maximum leaves (206.6) and maximum flowers (58.0) per plant. Keeping in view the survival percentages, vegetative and floral characteristics these cultivars and propagation through soft woodcutting is recommended for general cultivation.
Bandita DATTA,M. Afzal PASHA
催化学报 , 2011, DOI: 10.1016/S1872-2067(10)60252-5
Abstract: ?Aseriesof1,4-dihydropyridineshavebeenpreparedbyaone-potcondensationofaldehydes,ethylacetoacetate,andammoniumacetateinthepresenceofaheterogeneouscatalystsilicasulfuricacidatroomtemperatureundersolvent-freecondition.Thisnewprotocolhastheadvantageofshortreactiontimeandexcellentyields,andisanenvironmentallybenignroutetothesynthesisof1,4-dihydropyridines.
Role of Gal and GalNAc containing glycans in various physiological processes
MRM Hussain, M Hassan, I Afzal, A Afzal
Egyptian Journal of Medical Human Genetics , 2012,
Abstract: Glycoconjugates are involved in the vital physiological functions including blood group determination, cancer recognition, protein stabilization, sperm-egg adhesion and pathogenic interaction in body. These diverse biological functions of glycoconjugates are regulated by complex oligosaccharide structures linked with proteins and lipids in macromolecular assemblies. The diversity in oligosaccharide chains attached with lipids and proteins is specifically linked with the conformational behavior of sugar residues giving rise to unique carbohydrate structures with wide range of sequence and anomeric linkage. This is a challenging task to explore the relationship between biological processes and stereochemical behavior of sugar residues. Current review article focuses the specific stereochemical involvement (anomery and linkages) of Gal and its derivative GalNAc in wide range of cellular activities. These sugar residues exhibit different physiological functions at the terminal and subterminal position in glycans.
Pakistan Veterinary Journal , 2007,
Abstract: Effects of parity, lactation length, calving season, calf sex and service period on milk yield for 426 records in 134 Nili Ravi buffaloes maintained at the National Agricultural Research Center, Islamabad Pakistan during 1988-2004 were evaluted. The effects of parity, calving season, calf sex and service period were also recorded on lactation length of these buffaloes. The overall average milk yield was 1831.6 ± 530.9 litres per lactation and the average lactation length was 273.3 ± 52.8 days. Milk production was lower in first lactation than that in 2nd, 3rd and 4th lactations (P<0.05). Milk yield per lactation increased with increasing lactation length (P<0.05). The season of calving had significant effect on milk yield. Buffaloes calving in spring showed the highest and those calving in summer showed the lowest milk yield. Sex of calf did not affect milk yield. Milk yield of the animals conceiving within 31–100, 101–200 and 201–300 days after calving did not differ from one another. However, milk yield of the animals conceiving >300 days after calving (2045.6 ± 588.5 litres per lactation) was significantly higher than that of the animals conceiving within 31–100 days after calving (1846.1 ± 527.5 liters per lactation). The lactation length was not affected by parity, calving season, calf sex and service period. It is concluded that parity and lactation length significantly affected milk production in Nili Ravi buffalo, however, a service period of <300 days and calf sex did not affect the yield.
Effect of Zn(II) deposition in soil on mulberry-silk worm food chain
M Ashfaq, W Afzal, MA Hanif
African Journal of Biotechnology , 2010,
Abstract: The present study was conducted to evaluate the entrance of Zn(II) into the food chain of Bombyx mori (silk worm) from mulberry plants irrigated using Zn(II) containing synthetic effluents. The soil, plant, silkworm and their excreta were sampled to determine Zn(II) amount by using atomic absorption spectrometry (AAS). The amount of Zn(II) deposited by synthetic effluent to soil was increased with pH of the effluent. However, the bioaccumaltion of Zn(II) in Morus alba leaves and B. mori larvae was high when the effluent pH was in the acidic range. B. mori excreted considerable amount of Zn(II) but still most of Zn(II) resided inside its body. The maximum Zn(II) amount detected in soil, leaves, larvae and faeces were 386.51 ± 0.03, 142.85 ± 0.001, 91.375 ± 0.019 and 42.13 ± 0.69 mg/kg, respectively. Zn(II) present in B. mori body was responsible for toxic effects on its life cycle. First instar of B. mori was most affected by Zn(II) toxicity. Body length, body weight of B. mori decreased with increase in bioaccumlated Zn(II) amount in larval body. Higher Zn(II) concentration in larval body increased B. mori death rate significantly.
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