oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2018 ( 12 )

2017 ( 4 )

2016 ( 7 )

2015 ( 10 )

Custom range...

Search Results: 1 - 10 of 336 matches for " Hala Kandil "
All listed articles are free for downloading (OA Articles)
Page 1 /336
Display every page Item
Prosthetic valve endocarditis caused by Pasteurella in a penicillin allergic patient: challenges in diagnosis and treatment
Giovanni Satta,Rebecca Louise Gorton,Hala Kandil
Infectious Disease Reports , 2012, DOI: 10.4081/idr.2012.e32
Abstract: Pasteurella multocida is a rare cause of infective endocarditis with only a few cases described. This report involves a 38-year-old penicillin-allergic patient in an immunocompromised state with several co-morbidities. Two molecular microbiological techniques, 16S rRNA sequencing and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry were used to confirm the species identification as P. multocida. Previous reports in the literature are also reviewed.
EFFECT OF SOLE AND ASSOCIATIVE ACTIONS OF ELEMENTAL SULFUR AND INOCULATION SULFUR OXIDIZING BACTERIA ON GROWTH AND NUTRIENTS CONTENTS OF PEPPER PLANTS AND THE USED SOILS
S. A. Ibrahim,M. H. El-Halfawi,Hala Kandil
Soil Forming Factors and Processes from the Temperate Zone , 2011,
Abstract: A pot experiment was conducted to study the effect of elemental sulfur (E.S) rate (2.5 g/kg soil) and sulfur oxidizing bacteria on pepper plant and some chemical properties of two representative soil samples varying in their texture and CaCO3 content. Pepper was grown in Shobrakheet clay loam and Nobaria sandy loam soils for 50 days. Each soil was treated with elemental sulfur (2.5 g kg-1 soil) and inoculated with two sulfur oxidizing bacteria (S.O.B. No.8 and S.O.B. ATCC 8158). Elemental sulfur with or without sulfur oxidizing bacteria increased shoot dry weights of pepper plants as compared with control. The highest effect was observed with E.S + ATCC 8158 treatment which resulted in increasing the pepper shoot dry weights from 1.36 to 2.08 g pot-1 with the clay loam soil and from 0.77 to 1.37 g pot-1 with the sandy loam soil. The same treatment resulted in the highest plant content of S, N, P, K and micronutrients.
EFFECT OF DIFFERENT SOURCES AND RATES OF SOME ORGANIC MANURE ON CONTENT OF SOME HEAVY METALS IN DIFFERENT SOILS AND PLANTS GROWN THEREIN: I. EFFECT ON SPINACH PLANTS.
Hala Kandil,S. Ibrahim,M.I. El-Kherbawy,A. Abd-Elfattah
Soil Forming Factors and Processes from the Temperate Zone , 2012,
Abstract: This experiment was conducted to study the influence of different sources and rates of some organic manure on growth and heavy metals concentration in spinach plants grown on two different soils. Resultsshowed that values of dry weight (DW) of roots, shoots and total plant of spinach grown on Abou-Rawash and El-Nobaria soils significantly increased by using all the organic manure sources (sewage sludge(SS), banana and cotton composts (BC and CC)) and rates (11, 22, and 44 t/fed)) as compared with control treatment. Thehighest dry weight of roots, shoots and total spinach plants grown on both soils were obtained by using cotton compost (CC) followed by banana compost (BC) and sewage sludge (SS) in decreasing order (CC > BC > SS). The obtained results revealed that DW of spinach plants grown on sandy calcareous soil of El- Nobaria was higher under all the organic manure treatments than those obtained from sandy soil of Abou-Rawash. Moreover, dry weight of spinach plants grown on Abou-Rawash and El-Nobaria soils significantly increased by increasing the application rate from all the used organic manures up to 44 t/fed. Organic manures (SS, BC and CC) led to more significantly increases in the concentration of Zn, Cu, Pb, Cd and Ni in both roots and shoots of spinach plants grown on Abou-Rawash and El-Nobaria soils as compared with control treatment. Theconcentration of Zn, Cu, Pb, Cd and Ni in roots and shoots of spinach plants grown on sandy and calcareous soils were higher when SS was applied to the tested soils in comparison with the addition of the other organic composts (BC and CC). The tested sources of organic manures could be arranged due to their inducing effect on Zn, Cu, Pb, Cd and Ni concentrations in roots and shoots of spinach plants grown on both soils in the following decreasing order: SS > CC > BC. The efficiency of studied materials on heavy metal concentrations was varied in accordance to sources and rates of application and / or the part of the grown plant. All the concentrations of Zn, Cu, Pb, Cd and Ni in spinach plants grown on Abou-Rawash and El-Nobaria soils werewithin the normal ranges of heavy metal in plants and did not reach the phytotoxic levels obtained in the literature. The highest values of extractable and total heavy metals in the two tested soils after spinach plantation were attained by using sewage sludge (SS) following by BC and CC in decreasing order (SS > BC >CC). The values of extractable and total of studied heavy metals in the used soils after spinach plantation follow the order: Zn > Cu > Pb > Ni > Cd. It could
EFFECT OF DIFFERENT SOURCES AND RATES OF SOME ORGANIC MANURE ON CONTENT OF SOME HEAVY METALS IN DIFFERENT SOILS AND PLANTS GROWN THEREIN: II. EFFECT ON CORN PLANTS
Hala Kandil,M.I. El-Kherbawy,S. Ibrahim,A. Abd-Elfattah
Soil Forming Factors and Processes from the Temperate Zone , 2012,
Abstract: This experiment was conducted to study the influence of different sources and rates of some organic manure on growth and heavy metals concentration in spinach plants grown on two different soils. The important results could be summarized in the following: results show that values of dry weight (DW) of roots, shoots and total plant of corn grown on Abou-Rawash and El-Nobaria soils significantly increased by using all the organic manure sources (sewage sludge(SS), banana and cotton composts (BC and CC) and rates (11, 22, and 44 t/fed)) as compared with control treatment. There is no significant effect between all the used organic manures (SS, BC, and CC) on dry weight production of roots, shoots and total plant of corn grown on Abou-Rawash sandy soil, but in El-Nobaria sandy calcareous soil, the SS and BC treatments significantly increased dry weight of roots, shoots and total plant of corn in comparison with those obtained by using CC treatment. Furthermore, there is no any significant effect between sewage sludge (SS) and (BC) on the production of the dry weight of different organs of corn plant grown on El-Nobaria soil. Dry weight of corn plants grown on both soils significantly increased by increasing the application rate from all the used organic manures up to 44 t/fed. The highest DW of corn plants grown on both soils were obtained by using BC and rate of 44 t/fed, while the lowest values were attained by using CC and rate of 11 t/fed. All the organic manures (SS, BC and CC) led to more significantly increases in the concentration of Zn, Cu, Pb,Cd and Ni in both roots and shoots of corn plants grown on both soils as compared with control. The concentrations of Zn, Cu, Pb, Cd and Ni in corn plants grown on Abou-Rawash significantly increased when BC was applied as compared with CC. Moreover, there is no clear difference could be found between BC and CC used in sandy calcareous soil of El-Nobaria, and the concentration of all the heavy metals in corn plants followed the order of SS > BC > CC in decreasing order. All the concentration of Zn, Cu, Pb, Cd and Ni in corn plants grown on both soils were within the normal range of heavy metals in plants and did not reach phytotoxic studies in the literature. Application of organic manures (SS, BC and CC) resulted in significantly increases of the extractable DTPA and the total metals of Zn, Cu, Pb, Cd and Ni in both used soils after corn plantation as compared with untreated control. Application of SS significantly increased both extractable and total heavy metals (Zn, Cu, Pb, Cd and Ni) in Abou-Rawash and El
INFLUENCE OF ELEMENTAL SULFUR AND/OR INOCULATION WITH SULFUR OXIDIZING BACTERIA ON GROWTH, AND NUTRIENT CONTENT OF SORGHUM PLANTS GROWN ON DIFFERENT SOILS
Hala Kandil,M. H. El-Halfawi,S.A. Ibrahim
Soil Forming Factors and Processes from the Temperate Zone , 2011,
Abstract: A pot experiment was conducted to study the effect of elemental sulfur(E.S) rates (300 and 600 ppm) and/or sulfur oxidizing bacteria (S.O.B. ATCC 8158) on growth and nutrients content of sorghum plants grown on different soils (sandy soils(I & II) and clay loam soil).The obtained results could be summarized in the followings:Sorghum plants:Significant increases over the control were observed in fresh and dry weights of sorghum plant as well as its content of SO4=, N, P, K, Fe, Mn, Zn and Cu by using all the sulfur and/or the oxidizing bacteria treatments. Addition of E.S (300 & 600 ppm) in combination with S.O.B. ATCC 8158 significantly increased both fresh and dry weights as well as SO4=, N, P, K, Fe, Mn, Zn and Cu contents of sorghum plants grown on the used soils as compared with either of them alone.E.S rates (300 & 600 ppm) significantly increased the fresh and dry weights as well as all the studied nutrients content (SO4=, N, P, K, Fe, Mn, Zn and Cu) of sorghum plants grown on the different soils as compared with S.O.B. ATCC 8158 treatment alone. The highest rate of E.S (600 ppm) significantly increased all the previous parameters under study as compared with the lower rate (300 ppm). The highest values of fresh and dry weights as well as nutrients content (SO4=, N, P, K, Fe, Mn, Zn and Cu) of sorghum plants grown on the used soils were obtained by 600 ppm E.S + S.O.B. ATCC 8158 treatment followed by 600 ppm E.S; 300 ppm E.S + S.O.B. ATCC 8158; 300 ppm E.S; S.O.B. ATCC 8158 and control treatments in decreasing order.The used soils:E.S rates (300 & 600 ppm) and/or S.O.B. ATCC 8158 decreased pH values of the used soils after 3, 6 and 9 weeks from sowing as compared with their corresponding control treatments. The values of pH of sand soil (I) and clay loam soil slightly decreased by time i.e they decreased from 3 weeks to 9 weeks from plantation. E.S rates (300 & 600 ppm) with or without inoculation the used soils with S.O.B. ATCC 8158 significantly increased SO4=, N, P, K, Fe, Mn, Zn and Cu content of all the used soils as compared with the control and sole S.O.B. ATCC 8158 treatments each alone. The highest values of SO4=, N, P, K, Fe, Mn, Zn and Cu contents of sandy soils (I & II) and clay loam soil took the same trend of these nutrient in sorghum plants. The highest rate of E.S (600 ppm) significantly increased SO4=, N, P, K, Fe, Mn, Zn and Cu contents in all the used soils as compared with the lower rates (300 ppm). All the values of fresh and dry weights as well as all the determined elements in sorghum plants and the used soils were higher wh
Influence of Freezing and Freeze Drying on Intracellular Enzymatic Activity and Autolytic Properties of Some Lactic Acid Bacterial Strains  [PDF]
S. Kandil, M. El Soda
Advances in Microbiology (AiM) , 2015, DOI: 10.4236/aim.2015.56039
Abstract: Lactic acid bacteria possess several interesting properties of great economic importance. Improvement and stabilization of these industrially important features are an active research area at the present time. The objectives of this work are to study the effect of freezing and freeze-drying on the survival rate, autolytic activity and intracellular enzymatic activity of the main species of lactic acid bacteria used in the dairy industry. The article focused on several characteristics that were not well covered in the past. The obtained results revealed that both preservation methods have a significant effect on viability, autolytic activity and intracellular enzymatic activity. After six months of storage we found that frozen cultures exhibited higher survival rate, higher rate of intracellular enzymatic activity and lower rate of autolysis. The impact of conservation treatments was only strain specific in the case of survival rate. The results obtained lead to the selection of the best preservation method for the selected cultures based on survival rate, autolytic activity and intracellular enzymatic activity.
Does Demand Volatility Lower Growth and Raise Inflation? Evidence from the Caribbean
Kandil, Magda;
Economía mexicana. Nueva época , 2009,
Abstract: the paper investigates asymmetry in the allocation of aggregate demand shocks between real output growth and price inflation over the business cycle in a sample of fifteen caribbean countries. in most countries, the evidence indicates the existence of a kinked supply curve, which implies that positive demand shocks feed predominantly into prices while negative demand shocks mainly affect output. this suggests that the high variability of aggregate demand in caribbean countries, frequently exposed to shocks, tends to create an upward bias on inflation and a downward bias on real output growth, on average, over time. the analysis highlights the benefits of eliminating structural rigidities responsible for the kinked nature of the supply curve, and points to the dangers of pro-cyclical macroeconomic policies.
A revolta no Egito
Kandil, Hazem;
Novos Estudos - CEBRAP , 2011, DOI: 10.1590/S0101-33002011000300009
Abstract: this interview focuses on the fall of hosni mubarak's authoritarian regime in egypt: the reasons leading to the popular uprising, the social strata that engaged in it and its mobilization strategies, the forces that supported mubarak's regime and perspectives for the future of democracy in egypt.
Does Demand Volatility Lower Growth and Raise Inflation? Evidence from the Caribbean
Magda Kandil
Economía Mexicana , 2009,
Abstract: Este trabajo investiga la asimetría en la distribución de choques de demanda agregada entre el crecimiento real de la oferta y la inflación de precios durante el ciclo de negocios, en una muestra de quince países caribe os. En la mayoría de ellos, la evidencia indica la existencia de una curva de oferta con elasticidad discontinua, lo cual implica que los choques de demanda positivos alimentan predominantemente los precios, mientras que los choques de demanda negativos afectan principalmente la oferta. Esto sugiere que la alta variabilidad de la demanda agregada en países caribe os, expuesta frecuentemente a choques, tiende a crear, en promedio y a lo largo del tiempo, un sesgo hacia arriba en la inflación y un sesgo hacia abajo en el crecimiento verdadero de la oferta. Este análisis enfatiza los beneficios de eliminar las rigideces estructurales responsables de la discontinuidad de la elasticidad de la curva de oferta, y se ala los peligros de políticas macroeconómicas pro cíclicas.
Spatial Modeling of Optimum Zones for Wind Farms Using Remote Sensing and Geographic Information System, Application in the Red Sea, Egypt  [PDF]
Hala A. Effat
Journal of Geographic Information System (JGIS) , 2014, DOI: 10.4236/jgis.2014.64032
Abstract:

Wind power is a safe form of renewable energy and is one of the most promising alternative energy sources. Worldwide, the wind power industry has been rapidly growing recently. It is crucial that the locating of new projects must address both environmental and social concerns. The Red Sea shoreline in Egypt provides excellent wind power potential sites for the Red Sea Governorate. In this study, appropriate zones for wind power farms were mapped using remotely sensed data and a GIS-based model namely Spatial Multi-Criteria Evaluation (SMCE). This model incorporated several criteria, two sets of factors and a set of constraints. First, resource factors included wind speed, elevation zones used to derive the wind power density. Second, economic factors included distances from urban areas, roads and power-lines. Third, land constraints were excluded from the evaluation. The land constraints set included land slope angles, shoreline, urban areas, protectorates airports and ecologically sensitive and historical areas. The Analytical Hierarchy Process was used to assign the criteria relative weights. The weighted criteria and constraints maps were combined in the MCE model. The model identified the zones with potential wind power energy. Such zones were found to exist along the northern parts of the Red Sea shoreline. Some of which are unsuitable due to their location within a sensitive eco-system, high slopes and/or a nearby airport. By excluding such land constrains, the model identified the most appropriate zones satisfying all assigned suitability conditions for wind farms. Ideal zones amount to 706 sq. km with suitability values ranging from 83% to 100% and highly suitable zones amount to 3781 sq. km having suitability values ranging from 66% to 83%.

Page 1 /336
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.