95 research outputs found
A comprehensive evaluation of the potential of plant growth-promoting rhizobacteria for applications in agriculture in stressed environments
No full textThe world is facing a consistent increase in human population and a noticeable decrease in cultivable lands due to soil salinization, abrupt climatic changes, and less rainfall. These problems have increased the importance of finding ecologically sustainable solutions to ensure global food security. Plant growth-promoting rhizobacteria can be advantageous to enhancing plant productivity and safeguarding against environmental stresses. They may assist plants by atmospheric nitrogen fixation, nutrient recycling, phosphate solubilization, iron sequestration via siderophore formation, and production of phytohormones like indole-3-acetic acid and 1-aminocyclopropane-1-carboxylate deaminase. They can also be used as biofertilizers and biocontrol agents as they produce antibiotics, exopolysaccharides, and hydrolytic enzymes. In this review, the connections between microbial populations, as microbial inoculants, and plant systems are highlighted, focusing on the enhancement of plant development, environmental resilience of agricultural systems, ecosystem services, and biological challenges under stressed conditions. This review also emphasizes the use of advanced molecular tools and techniques to effectively characterize potent soil microbial communities, their importance in increasing crop yield in stressed soils, and the prospects for future research
Corrigendum to “Promising electrochemical study of titanate based anodes in direct carbon fuel cell using walnut and almond shells biochar fuel” [J. Power Sources 434 (2019) 126679](S0378775319306500)(10.1016/j.jpowsour.2019.05.085)
No full text© 2019 Elsevier B.V. The authors regret that the family name of author Asia Rafique was wrongly added as ‘Asia Iftikhar’ in the original article, the corrected name is “Asia Rafique”. The authors would like to apologise for any inconvenience caused
Magnetic Anisotropy of Fe1-xGax Alloys
Get PDFCubic magnetocrystalline anisotropy constants, K1 and K2, for Fe1-xGax alloys were measured using magnetization curves with x = 0.05, 0.125, 0.14, 0.18 and 0.20. Thin circular {110} disks with all <100>, <110> and <111> in the plane of the disk were used to measure K1 and K2. K1 was also measured with {100} circular disks. K1 for 5 at% Ga content has been found to be larger than that of pure Fe. K1 and K2 both drops gradually till 18 % Ga substitution. Then there is a sharp drop in the magnitude of both the constants. <110> and <111> directions were magnetically equivalent for all the compositions considered for this study resulting in K2 to be equal to 9K1/4. A calculation of anisotropy energy density verifies this result. Magnitude of K1 measured from both {110} and {100} disks were reasonably consistent
Islam: Extremism and Moderation
Get PDFIslam has, for many years now, been torn between radical fundamentalist groups and the more intellectually moderate groups. With both groups claiming to follow the true Islam, an individual may have a difficult time in practicing one’s faith.
The ambition of this essay will be to investigate some of the major differences between the movements, more specifically the Wahhabi/Salafi movement practiced in Saudi Arabia and the more moderate approach emphasized by numerous Islamic Scholars. Grappling with these issues in my own search for the authentic Islam, this essay will provide a view of both sides with an attempt to justify the moderate position over the strict, literalist one. The intention is to show why the moderate intellectual position is more rooted in Islamic principles and values than the monotonous fanatic position. Due to the many sects, some with more extreme positions like the Khawarij alongside the more rational such as the Mu’tazilites, I decided it would be an enlightening task to break down both sides and challenge the history of both.Peer reviewedstudent peer-reviewed journal articlefinal article publishe
More Than One Path?
Get PDFIn the minds of many Muslims and non-Muslims the idea of salvation in Islam is quite simple: only Muslims have a chance of attaining paradise and anyone who does not profess to be a Muslim is destined for eternal doom. The ambition of this essay is to argue that from the Islamic point of view, non-Muslims do indeed have a chance of attaining God’s mercy and being saved. This will be argued by taking a look at how the Qur’an accepts diversity, verses in the Qur’an regarding other faiths, along with an explanation and commentary on these verses from some of the most learned scholars on the Qur’an. Also, this essay will look at various Prophetic precedents in Islamic history on this issue.student peer reviewed journal articlefinal article publishe
Doubly-Fed Induction Machine for use in Mini-Hydro Power Plants
No full textElectrical Power EngineeringElectrical Engineering, Mathematics and Computer Scienc
rTMS reduces cortical imbalance associated with visual hallucinations after occipital stroke
No full textThis is an author accepted manuscript of Rafique, S. A., Richards, J. R., & Steeves, J. K. E. (2016). rTMS reduces cortical imbalance associated with visual hallucinations after occipital stroke. Neurology, 87(14), 1493–1500. https://doi.org/10.1212/WNL.0000000000003180Objective: To investigate the efficacy of multiday repetitive transcranial magnetic stimulation (rTMS) to the occipital cortex in a patient with continuous visual phosphene hallucinations for more than 2 years following occipital stroke.
Methods: Low-frequency rTMS (1 Hz) was applied to the lesion site for 30 minutes daily over 5 consecutive days. Functional MRI (fMRI) was performed before and after rTMS treatment.
Results: Increased application of rTMS corresponded with a reduction in intensity of visual phosphene hallucinations and was reflected in altered blood oxygen level–dependent signal. fMRI revealed focal excitatory discharges at the border of the lesion, highlighting the origin of phosphenes. Post-rTMS, rTMS did not simply suppress activity in the patient but rather redistributed the previously imbalanced cortical activity not only at the stimulation site but in remote cortical regions so that it more closely resembled that of controls.
Conclusions: This case is rare in its presentation of chronic continuous visual phosphene hallucinations following occipital stroke. We present a case of multiday application of rTMS to visual cortex and demonstrate that rTMS provides a valuable therapeutic intervention in modulating visual hallucinations following occipital damage.
Classification of evidence: This study provides Class IV evidence in a single-case report that multiday rTMS reduces intrahemispheric and interhemispheric imbalance and associated visual phosphene hallucinations following occipital stroke.Study funded by the Natural Sciences and Engineering Research Council of Canada (grant # 327588) and the Canada Foundation for Innovation (grant # 12807
First-principles study of electronic and optical properties of boron and nitrogen doped graphene
No full textComputational Modeling of Gas Liquid Interfaces Using Different Multiphase Models
No full textA time dependent Computational Fluid Dynamics analysis of gas jets impinging onto liquid pools has been conducted. The aim of the study is to obtain a better understanding of highly complex, and industrially relevant flows in jetting system. Three different multiphase models, i.e., The Eulerian model, the volume of fluid model and the mixture model are used to analyze the surface deformations namely dimpling, splashing and penetration. The Standard k-? model is used to incorporate the Turbulence in the continuous phase. Two-dimensional axisymmetric geometries with different dimensions have been used in the study. Simulations are performed using commercial CFD code Fluent 6.1. PISO (pressure- implicit with splitting of operators) algorithm was employed to compute the pressure velocity coupling. The computed results are compared with experimental and theoretical data reported in the literature. Also the results of the study highlight and compare the discrepancies between the three multiphase models in capturing the flow structure and cavities formed at gas-liquid interfaces
Computational Cavitation Analysis of a Submerged Body at Different Depths
No full textTransient's analysis is performed to determine the cavitation inception on a submerged body and flow dynamics under different working conditions. Cavitation causing hydrodynamic, structural and noise problems is essential to avoid. Cavitation analysis is done for a particular geometry to investigate the location and determine the critical conditions for different depths at which cavitation take place. Simulation has been done using the commercial CFD code Fluent 6.1. Multiphase Mixture model and Standard K- ? turbulence model with standard wall function is used in the study. Analysis determines the region and critical velocity for a particular depth at which cavitation occurs. The time dependent analysis provides detailed insight into the hydrodynamics and highlights the capabilities and limitations of the cavitation model used
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