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OALib Journal期刊

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Study of Efficacy of Various Split Applications of Inorganic Nitrogen on Potato Crop  [PDF]
Choudhary Muhammad Ayyub, Shoaib Ur Reman, Rashad Waseem Khan Qadri, Muhammad Azam, Kareem Yar Abbasi, Zia Ullah Khan, Muhammad Rashid Shaheen, Muhammad Ali, Mujahid Hussain Leghari, Tehmina Asghar
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104386
Abstract:
Series of experiments have been conducted to find the optimized dose and efficacy of nitrogen to fulfill the requirements of plant at each level by making split doses. Being most important macro nutrient, afield trial was conducted to study the effect of without applying nitrogen (control) single nitrogen (N) application at planting time on yield and nitrogen uptake of potato in comparison to various split applications. Data were collected about plants vegetative growth, total yield and qualitative factors (TSS, nitrogen, phosphorus, potassium and protein percentage in tuber). Experimental design used was Randomized Complete Block Design (RCBD) having seven treatments with three replications. Data were analyzed by using standard statistical techniques. Overall, qualitative characters of tubers and yield enhanced with split nitrogen application as compared to all nitrogen applied once at planting time whereas, there was no significant difference between tuber nitrogen, potassium, phosphorus and protein contents.
Modification of c and n sources for enhanced production of cyclosporin 'a' by Aspergillus Terreus
Tanseer, Sundas;Anjum, Tehmina;
Brazilian Journal of Microbiology , 2011, DOI: 10.1590/S1517-83822011000400019
Abstract: most of the studies regarding cyclosporin 'a' production through fungi concentrate around tolypocladium inflatum. this is mainly due to lower reported production of this drug in other fungi. the present study was therefore conducted to explore indigenous isolates of aspergillus terreus for synthesis of this drug and defining a production medium for obtaining high yield of cyclosporin 'a'. for this purpose carbon and nitrogen sources were optimized for the selected best strain of a. terreus. overall results depicted that the best cyclosporin 'a' yield from selected aspergillus terreus (fcbp58) could be obtained by using production medium containing glucose 10% as carbon source and peptone 0.5% as nitrogen source. this modification in production medium enhanced drug synthesis by selected fungi significantly. the production capabilities when compared with biomass of fungi there was found no relationship between the two confirming that the medium modification increased overall drug synthesis powers of the fungi.
Wheat Straw: A Pragmatic Overview
Tehmina Saleem Khan,Umarah Mubeen
Current Research Journal of Biological Sciences , 2012,
Abstract: Wheat Straw (WS) is the agricultural by-product obtained from different parts of wheat plant like stem, leaves etc. The aim of the study is to highlight the important aspects and features of nutritional value of wheat straw and to summarize the economical and commercial values of this treasure produced abundantly in Pakistan. WS is rich in cellulosic fibers, hemicelluloses, proteins, lignin and ash. All these elements together make WS as most important and balanced substrate for microbial cultures for its diverse applications in fermentation, food, feed, medicine industries and in fields to increase soil fertility. In fermentation industry, WS can be used as a substrate for the production of vast range of hydrolytic enzymes, medicines, biofuel and other metabolites. It is the cheapest or low cost source of natural substrate.
Analysis of an Il’in Scheme for a System of Singularly Perturbed Convection-Diffusion Equations  [PDF]
Mohammad Ghorbanzadeh, Asghar Kerayechian
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.27116
Abstract: In this paper, a numerical solution for a system of singularly perturbed convection-diffusion equations is studied. The system is discretized by the Il’in scheme on a uniform mesh. It is proved that the numerical scheme has first order accuracy, which is uniform with respect to the perturbation parameters. We show that the condition number of the discrete linear system obtained from applying the Il’in scheme for a system of singularly perturbed convection-diffusion equations is O(N) and the relevant coefficient matrix is well conditioned in comparison with the matrices obtained from applying upwind finite difference schemes on this problem. Numerical results confirm the theory of the method.
Physiological changes in wheat during development of loose smut
Anjum, Tehmina;Fatima, Sabin;Amjad, Sana;
Tropical Plant Pathology , 2012, DOI: 10.1590/S1982-56762012000200002
Abstract: this study was planned to determine the dynamics of total phenolic content, polyphenol oxidase and peroxidase activities in wheat (var. inqlab-91) infected with ustilago tritici with the objective to investigate the role of phenolics and related enzymes in host pathogen interaction. the biochemical analysis was carried out twice, once at grain filling stage when disease emerges and second at crop maturity. roots were found most sensitive as considerable increase in both phenolic content and enzymes activity was recorded in early and later stage of disease development. conversely in case of infected stem and leaves the enzyme activities were found lower at early disease stage in comparison to the control. however, the enzyme activities increased in both parts when checked again at crop maturity with an exception of no increment in peroxidase and cresolase activities in leaves.
Impact of Novastar on the Haematological Profiles of the Rose-Ringed Parakeet
Iffat Mehmood,Hammad Ahmad Khan,Tehmina Siddique
Pakistan Journal of Biological Sciences , 2003,
Abstract: An experiment to assess the impact of novastar on the hematology of the rose-ringed parakeet, Psittacula krameri, in both sexes resulted 14.32 1.47, 10.12 0.68, 12.40 0.41 and 12.28 0.42 for males, whereas for the females, they were 12.08 0.55, 12.04 0.50, 11.34 0.18 and 10.80 0.28. It was evident that the initial doses resulted in an abrupt cessation of the feeding efficacy, followed by the reduction in the (%) hemoglobin values, past 12 h, the haemoglobin values were comparable owing to an enhanced immunological tolerance and restoration of the bone marrow tissue.
CHRONIC SUPPURATIVE OTITIS MEDIA
MUNIR LODHI,TEHMINA MUNIR,KAMRAN AZIZ
The Professional Medical Journal , 2010,
Abstract: Objective: The aim of the study was to determine the most prevalent organisms in chronic otitis media in children and their susceptibility to various antibimicrobials so that an appropriate empiric antibiotic can be started promptly while awaiting the results of the cultureand sensitivity. Design: Prospective observational study. Place and Duration of Study: The study was conducted at Combined MilitaryHospital Lahore from Jan 2006 to Dec 2007. Subject and Methods: A total of 156 patients less than 15 years of age who were having discharge from one or both ears for at least 1 week with tympanic membrane perforation were included in the study.A sample of the ear discharge was collected on the swab and cultured on appropriate media. The Gram positive organisms were identified on the basis of Gram staining, catalase and coagulase test, the Gram negative organisms were identified by API 20e. A total of 156 patients were included in the study of which 96(61.5%) were males and 59(37.8%) were females. The organisms isolated were Staphylococcus aureus in 79(50.6%), Pseudomonas aeruginosa in 45 (28.8%) patients and Proteus mirabilis 17 (10.9%), Escherichia coli, Acinetobacter sp and streptocci were isolated in occasional patients. Staphylococcus aureus was the commonest organism isolated followed by Pseudomonas aeruginosa and Proteus mirabilis Fifty four. (34.6%)of Staphylococcus aureus were sensitive to gentamicin, fifty two (33.3%) to ciprofloxacin and 42 (26.9%)% to both ciprofloxacin and gentarnicin. Among the Pseudomonas aeruginosa isolates 40 (25.6%) were sensitive to gentarnicin, 27(17.3%) to ciprofloxacin and 22 (14.1%) to both ciprofloxacin and gentarnicin. Out of 156 patients 91(58.3%) had isolates which were sensitive to ciprofloxacin and 62(39.7%) were resistant to it. One hundred fourteen patients (73.1%)had isolates which were sensitive to gentamicin whereas 33(21.2%) were resistant. Similarly 35 isolates (22.4%) were sensitive to sulphamethoxazole/trimethoprim whereas 66(42.3%) were resistant. Among Proteus mirabilis isolates 12 were sensitive to gentamicin, 11 were sensitive to ciprofloxacin and 11 were sensitive to both ciprofloxacin and gentamicin. Conclusion: Ciprofoxacin ear drops can be recommended to be given empirically in children with chronic discharging ears. The initial therapy can be modified and appropriate therapy started if the result of the culture and sensitivity report shows the isolate to be resistant to the antibiotic started empirically.
Investigation of Iron Complex Formation of Anti-Hypertensive Drug: Methyldopa  [PDF]
Tehmina Fiaz, Nasreen Fatima, S. Zafar Abbas Zaidi, Tanveer Abbas, Mohib R. Kazimi
American Journal of Analytical Chemistry (AJAC) , 2015, DOI: 10.4236/ajac.2015.66053
Abstract: The drug administered for any disease may play an unwanted function in biological system. They may have multiple counter effects, one of which is their interaction to bioactive metals. Iron is most common bio essential metal and is reported to interact with antihypertensive drug methyldopa. In the present study, above said complex is analyzed by UV-Visible spectrophotometry. Formation constant of the complex is calculated by using mole ratio method and single point statistical method which is in the range of 1010, values are also calculated which are independent of pH like formation constant. Absorbance maxima were found to be dependent on pH. At lower pH complex shows two broad bands centered at 430 nm and 730 nm. With the rise in pH later peak shifts toward lower wavelength, so 615 nm is selected for further studies. Molar extinction coefficient of the complex is explored by serial dilution method. At all wavelengths it increases with increase in pH. Mole ratio and slope ratio methods are used for exploring stoichiometry. Metal to ligand combining ratio in the complex is 1:2 at pH 4.0 and pH 4.5 while 1:3 at pH 5.0 and pH 5.5.
Assessment of Groundwater Quality and its Suitability for Drinking and Agricultural Uses in the Oshnavieh Area, Northwest of Iran  [PDF]
Nosrat Aghazadeh, Asghar Asghari Mogaddam
Journal of Environmental Protection (JEP) , 2010, DOI: 10.4236/jep.2010.11005
Abstract: The Oshnavieh plain is part of the West Azarbaijan province, which is located; 100 km south of Urmia City, northwestern of Iran, and its groundwater resources are developed for water supply and irrigation purposes. In order to evaluate the quality of groundwater in study area, 31 groundwater samples were collected and analyzed for various parameters. Physical and chemical parameters of groundwater such as electrical conductivity, pH, total dissolved solids, Na, K, Ca, Mg, Cl, HCO3, CO3, SO4, NO3, NH3, PO4, Fe, F were determined. Chemical index like percentage of sodium, sodium ad-sorption ratio, and residual sodium carbonated, permeability index (PI) and chloroalkaline indices were calculated. Based on the analytical results, groundwater in the area is generally fresh and hard to very hard. The abundance of the major ions is as follows: HCO3 > SO4 > Cl and Ca > Mg > Na > K. The dominant hydrochemical facieses of groundwater is Ca-HCO3 and Ca-Mg-HCO3 type. According to Gibbs diagrams samples fall in the rock dominance field and the chemical quality of groundwater is related to the lithology of the area. The results of calculation saturation index by computer pro-gram PHREEQC shows that the nearly all of the water samples were saturated to undersaturated with respect to carbon-ate minerals and undersaturated with respect to sulfate minerals. Assessment of water samples from various methods in-dicated that groundwater in study area is chemically suitable for drinking and agricultural uses. Fluoride and nitrate are within the permissible limits for human consumption and crops as per the international standards.
Psychological effects of infertility in clinical varicocele patients  [PDF]
Ali Asghar Ketabchi, Mahsa Ketabchi
Health (Health) , 2011, DOI: 10.4236/health.2011.38083
Abstract: Objective. The general objective of this study was to analyze the perception and attitude of Clinical varicocele patients treated for infertility at the Shafa Hospital of Kerman, Iran. Method. This is a case control study of 62 infertile patients with Clinical varicocele, they invited to participate to a survey by demographic and Hamilton Depression Rating Scale (HDRS) questionnaires prior to the surgical procedure and compared the results with a control group (50 age matched healthy men), from April 2009 to May 2010 at the Shafa Hospital of Kerman, Iran. Results. In the study group 45% of patients (28/62) said that they used to isolate themselves from the public. 32 % (n = 20) patients have doubt about the results of operation, % 20 (n = 12) believed operation will cause erectile dysfunction; 16 % (n = 10) declared that their infertility problem is mainly due to their wife infertility not themselves; 17.7 % (n = 11) of them divorced (regarding to infertility). Hamilton Depression Rating Scale were respectively (28.8 +/– 6.5) and (15.6 +/–1 7) in the study and control groups (p = 0.001). Conclusions. Clinical varicocele patients have a very negative perception about their condition specially whose primary infertility and in comparing to general population have more depression grades. So, it is strongly recommended that for improve their psychological status by detailing their problem and changing negative perception and attitude to encourage them to follow and continue treatment options.
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