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Effect of Sewerage Water, Pgpr and Silver Nanoparticles Alone and in Combination on the Physiology of Maize Zea Mays L.

Thesis Info

Author

Naeem Khan

Department

Department of Plant Sciences, QAU

Program

Mphil

Institute

Quaid-i-Azam University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2012

Thesis Completion Status

Completed

Page

v, 101

Subject

Plant Sciences

Language

English

Other

Call No: DISS/M.Phil. BIO/3068

Added

2021-02-17 19:49:13

Modified

2023-02-19 12:33:56

ARI ID

1676717598188

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سیالکوٹ میں صوفیانہ شاعری کی روایت

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چمک تیری عیاں بجلی میں،آتش میں ،شرارے میں
جھلک تیری ہو یدا چاند میں سورج میں ،تارے میں
جو ہے بیدار  انساں میں وہ گہری نیند سوتا ہے
شجر میں پھول میں حیواں میں پتھر میں ستارے میں(1)
یہ ابتدائی وقت تھا جب اقبال ؒ وحدت ولوجود کے فلسفہ سے بہت زیادہ متاثر تھے لیکن بعد میں قرآن و حدیث...

اتجاهات جديدة في نثر شوقي، دراسة موضوعية

Ahmad sh┤qi is acknowledged as king of the modern Arabic poetry for his a lot of contribution towards it. He compiled the poetry in new poetical style and introduced several varieties in which he is awarded the title of “King of the Poetry”. Beside these attempts he contributed to the contemporary prosaic arts like; novels, dramas, anecdotes, dialogues, biography, social and political issues, which is somehow appreciated by a group of writers and condemned by another for some reasons. His prose did not gain the status as compared to his status in poetry. Many aspects of his prose were analytically discussed by the scholars but the thematic trend in his prose – according to my knowledge- is not taken in research. This article focused on the issue in research with the descriptive manner and the above mentioned themes are analyzed. Wherever, there is failure occurred in the prose that is pointed out and criticized. Adding more, the literary features which saved the prose from decline somehow are put in. This research will meet the deficiency we examined in the books written down about his prosaic literature. This will also open a new door for new researchers to take the themes and extend it further.

Magneto-Optical Properties of Topological Insulators and Kondo Effects in Quantum Dots

This thesis has two parts, based on work carried out during my PhD. The first part comprises discussion of magneto-optical properties of ultra thin films of topological insulators (TI) with broken inversion symmetry. We explore the magneto-optical properties of thin film topological insulators (TFTI). Topological insulators are materials with insulating bulk and symmetry protected gapless surface states. In the TIs we consider, spin-Orbit Interaction (SOI) inverts valence and conduction bands and gapless surface states appear as the bulk gap closes at the interface of a topological insulator with conventional insulator. We study the magneto-optical response of ultrathin films of topological insulators in the presence of an external magnetic field with hybridization and broken inversion symmetry. We find that inversion symmetry breaking results in Landau level crossings and opening of additional optical transition channels. Inversion symmetry can be broken due to interaction with a substrate or electrical gating. A phase transition from normal to topological insulating phase occurs by tuning system parameters with measureable signatures in static (dc) and dynamic (optical) conductivity. Moreover, we find that the optical Hall conductivity plateaus remain robust against a significant range of disorder strength. In the second part we discuss Kondo effect in a complex Quantum Dot (QD) in the presence SOI and analyze its influence on fixed points and Kondo temperature. We model a quantum dot (QD) in the Coulomb blockade regime with two localized orbitals connected to two external leads with SOI in the leads. The lead electrons couple to the dot state in different angular momentum modes in the presence of SOI. We develop an effective Hamiltonian for the system and study the multiparameter RG flows by renormalization group analysis in the weak coupling regime. Previous studies have shown that in the absence of SOI for odd electrons in the dot SU(4) and SU(2) Kondo fixed points are stable and for even electrons a universal stable fixed point exists. We determine the fixed points in the presence of SOI. We determine the Kondo temperature by numerically solving the RG equations and show that the Kondo temperature is enhanced by the SOI.