Antecedents of Professional commitment
Despite the increasing attention of organizational commitment in the management literature, most studies predominantly focus on full-time workers in traditional work settings. The results of this study highlight important directions for implementing strategies to increase casual academic’s organizational commitment. Organization commitment is important because it is known association with other important organizational variables such as turnover, absenteeism and work effort. This study provides the first step in better understanding the factors that affect the organization commitment
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Behavior of reinforced concrete deep beams strengthened with CFRP sheets
The principal objective of this paper is to investigate the behavior and load carrying capacity of reinforced concrete (indirectly loaded flanged deep beams) strengthened with carbon fiber reinforced polymer (CFRP) strips in shear. Using three types of concrete (normal strength concrete, high strength concrete, light weight concrete) group three consists of five indirectly loaded flanged deep beams (with light weight concrete) to investigate the effect of different strengthening case on the behavior and load carrying capacity of the deep beam like, three sides strengthening with CFRP (V shape), and strengthening the two opposite sides of deep beam, one side strengthening of deep beam, (L shape) strengthening.
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Bifurcations for a tuberculosis disease population model with delay
In this paper, a tuberculosis disease population model with time delays is investigated. The linear stability of the equilibrium and the existence of Hopf bifurcation with delay is investigated. Numerical simulations for justifying the theoretical results are illustrated. Finally, main conclusions are given.
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Bio-flotation of Eastern Desert Iron Ores Using Bacillus subtilis
With increasing demand for steel and depletion of high-grade iron ore deposits, more research efforts are being directed toward extending the life of existing ore reserves and developing technology to treat low-grade iron ore resources. Interaction between Bacillus subtilis and iron ore minerals such iron oxide and, quartz brought about significant surface chemical changes. Quartz was rendered more hydrophilic, while iron oxide became more hydrophobic mineral after bacterial interaction. The surface properties were studied using zeta potential, SEM, adhesion of strains to the minerals’ surface and contact angle. In this work Bacillus subtilis was isolated from Egyptian iron ore surface. The results revealed that a strong interaction was occurred. A concentrate contains 90.88% Fe2O3 [64 % Fe (total)] and 4.46% SiO2 was obtained through bio-flotation from a feed contains 70.04% Fe2O3 [49.33% Fe (total)] and 21.18% SiO2.
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Biodiversity of driftwood associated marine fungi from Punnakayal mangroves of Tuticorin district, South east coast of India
Thambraparani River empties in Arabian Sea at Punnakayal area and forms the Punnakayal estuary and it is situated in Tuticorin, South east coast of India. Mangroves are abundant in this area especially Avicennia sp. Diversity of marine fungi colonizing the drift wood samples collected from the intertidal regions at different season of the Punnakayal mangrove environment was studied. They are categorized into rare (0-25% frequency), occasional (26-50% frequency), frequent (51-75% frequency) and common (76-100% frequency) species. A total number of 62 species of fungi under 33 genera were recorded from the drift wood samples. They were assigned to Deuteromycetes (46 species), Ascomycetes (14 species), Trichomycetes (1 species) and Basidiomycetes (1 species).
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Bioreactor studies on biodegradation of phenol by Microaerophilic bacterial consortia
Environmental pollution has been a major irritant to industrial development. Chemical and chemical based industries are prime targets of the environmentalists for their crusade against pollution. Leather industry contributes to one of the major industrial pollution with the generation of pollutants causing chemicals namely lime, sodium sulphide, salts, organic solvents and phenolic compound. Leather industry has faced serious challenges on phenolic compounds. Thus this work focused on evaluation of biodegradation of phenol by using microaerophilic bacterial consortium to overcome the deleterious effect of chemical effluents to the environment. This biodegradation process will be ecofriendly and cost effective. This could be one of the ways of solving the industrial pollution resulting from tannery effluent. Tannery effluent with high phenol level fed in both batch reactor and continuous reactor by using sustainable Microaerophilic Bacterial consortia to degrade the phenolic compounds.
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Bioremediation of Copper present in waste water using isolated Micro-organism Stenotrophomonas sp. PD2 from Soil of Dhapa, Kolkata, India
Copper is one of the essential trace nutrients in all high plants and animals. But it can be toxic in high concentration. It has been found that marine life is damaging due to high copper concentration in water. This study investigated that degradation of copper by a group of bacteria isolated from copper polluted areas, Dhapa, Kolkata. Copper resistant bacteria i.e. Stenotrophomonas sp. PD2 was isolated from soil of Dhapa had shown maximum copper resistance upto 200 mg L-1 Cu(II). The influence of different parameters responsible for the bioremediation of copper by the copper-resistant bacteria, such as initial copper concentration and initial pH, contact time of the solution was studied. From experimental results it was observed that almost 95% copper can be reduced from wastewater using the isolated micro-organism.
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Caste Discrimination in Bama’s “Karukku”
This paper focused on a content analysis of the translated tamil fiction, “KARUKKU” by Bama, “Karukku” structured like a novel besides being an “autobiographical intervention as a speech act”. Most of her novels are autobiographical works. “Karukku” besides being a projection of the intersection of gender, caste and class. Bama has suffered multiple hegemonies as a dalit woman, and therefore poor and as a Christian Indian. The autobiography has several stories embedded in the narrative as a pointer to the patriarchal oppression of women.
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Changing Trends in Root Coverage Procedures using Choukroun’s Magic Wand (Platelet Rich Fibrin): A Review
Esthetics is the science of beauty and encompasses almost every field of dentistry. Gingival recession is defined as the oral exposure of the root surface due to displacement of the gingival margin apical to the cement-enamel junction and it is regularly linked to the deterioration of dental aesthetics. It has been associated with many factors such as inflammatory periodontal disease, developmental anatomic abnormalities (aberrant frenal attachment, thin bony plate), toothbrush injury, tooth malposition and iatrogenic factors. Among the various treatment modalities for root coverage, Coronally Advanced Flap (CAF) procedure demonstrates a high percentage of root coverage with a high predictability and without significant post-surgical complications. Management of gingival recession using Choukroun’s Magic Wand i.e. Platelet Rich Fibrin along with CAF, undoubtedly is a promising treatment modality for root coverage in vogue and should definitely be explored in future.
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Combined effects of chemical reactions and heat generation/absorption on unsteady transient free convection MHD flow between two long vertical parallel plates through a porous medium with constant temperature and mass diffusion
The present work analyzes the influence of first order homogeneous chemical reactions on unsteady transient free convection flow of a viscous, incompressible, electrically conducting fluid between two long vertical parallel plates through a porous medium with heat generation/absorption in the presence of transverse magnetic field. The problem is solved analytically in closed form by Laplace transform technique and the expressions for velocity, temperature and concentration has been obtained. The velocity, temperature and concentration profiles are studied for different physical parameters like Schmidt number, Prandtl number, magnetic parameter, buoyancy ratio parameter, chemical reaction parameter, time, permeability parameter and heat generation/absorption parameter. The numerical values of skin-friction have been tabulated.
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