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Preparation of Cyano Derivatives of Azo Dyes and Studies of Their Physical Properties

Thesis Info

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Author

Shafi, Fozia

Program

PhD

Institute

University of the Punjab

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

1994

Thesis Completion Status

Completed

Subject

Chemistry

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/6508/1/3752H.pdf

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676726995397

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1۔قتل عمد

1۔قتل عمد
کوئی شخص ، کسی کو ایسے ہتھیار سے مارے جس کی ضرب سے عام طور پر انسان مرجاتا ہے اور اس ضرب سے اس کو مارنے کا ارادہ بھی رکھتاہو، تو یہ قتل عمد کہلائے گا۔ یہ قتل کی سب سے مہلک قسم ہے اور اس پر سب سے زیادہ سزا رکھی گئی ہے تاکہ کوئی بھی انسانی جان کو قتل کرنے کی کو شش نہ کرے۔

مسلم عائلی قوانین آرڈیننس ۱۹۶۱ء کی دفعہ ۴ (یتیم پوتے وغیرہ کی میراث) : اسلامی احکام کی روشنی میں تحقیقی جائزہ

Issues of inheritance have been thoroughly maintained in the Holy Quran and Sunnah. As per these injunctions, the principle of AL’Aqrab fal’aqrab “the closest in kin” is to be observed. According to these principles, grandchildren, even though orphaned, have no right to inherit grandfather in the presence of direct children. On the other hand, section 4 of Muslim Family Laws, 1961 grants a share to orphaned grandchildren from the inheritance of his grandfather. Whereas, as per the constitution, no law can be enacted which is repugnant to the injunctions of the Holy Quran and Sunnah, now, whether the above mentioned section is in conformity with the injunctions of the Holy Quran and Sunnah or not is to be treated properly. If not, so from which perspective, it is repugnant to the Islamic Injunctions? These questions have been analysed critically in this paper and finally it has been concluded that section 4 of Muslim Family Laws Ordinance, 1961 contrasts with the injunctions as laid down in the Holy Quran and Sunnah.

Studies on Microbial Electrochemical Cells Using Different Anode Respiring Bacteria

Microbial electrochemical cell (MXC) technology is a source of sustainable energy which comes from microorganisms. Recent advances in the fields of electromicrobiology and electrochemistry with focus on microbial electrolysis cells (MECs) has earned this technology its name as alternate “green energy”. Despite advances, this technology is still facing challenges to address low power and current density output. Thermoanaerobacter pseudethanolicus 39E (ATCC 33223), a thermophilic, Fe(III)-reducing, and fermentative bacterium, was evaluated for its ability to produce current from four electron donors xylose, glucose, cellobiose, and acetate with a fixed anode potential (+ 0.042 V vs SHE) in a microbial electrochemical cell (MXC). Under thermophilic conditions (60 °C), T. pseudethanolicus produced high current densities from xylose (5.8 ± 2.4 Am−2), glucose (4.3 ± 1.9 A m−2), and cellobiose (5.2 ± 1.6 A m−2). It produced insignificant current when grown with acetate, but consumed the acetate produced from sugar fermentation to produce electrical current. Low-scan cyclic voltammetry (LSCV) revealed a sigmoidal response with a midpoint potential of −0.17 V vs SHE. Coulombic efficiency (CE) varied by electron donor, with xylose at 34.8% ± 0.7%, glucose at 65.3% ± 1.0%, and cellobiose at 27.7% ± 1.5%. Anode respiration was sustained over a pH range of 5.4−8.3, with higher current densities observed at alkaline pH values. Scanning electron microscopy showed a well-developed biofilm of T. pseudethanolicus on the anode, and confocal laser scanning microscopy demonstrated a maximum biofilm thickness (Lf) greater than ~150 μm for the glucose-fed biofilm. Microbial electrochemical cells (MXCs) are devices powered by microorganisms to generate electricity via oxidation of organic substrates. It is critical to understand the significance of sediment inocula in forming anodic biofilms to improve MEC performance. Five environmental samples were evaluated for electrical current production using acetate-fed microbial electrolysis cells (MECs). Three of these samples were able to produce significant current densities ranging between 3 to 6.3 Am-2. 16S rDNA targeted deep sequencing comparisons of anodic biofilms and sediment bacterial community structures revealed significant differences in bacterial community structures. Bacterial community producing the highest current density x after enrichment was dominated by the class Bacteroidia, δ-proteobacteria and Erysipelotrichi. Comparison of phylogenetic information of bacterial communities with 7 previously reported enriched samples by reconstruction of unobserved states (PICRUSt) analysis clearly distinguished the biofilm communities from the sediment inocula in terms of higher abundance of genes related to anode respiration. Principal Coordinate Analysis (PCoA) also indicated that the clustering of biofilm communities was in accordance with the predominant genera in each sample, such as Geobacter dominating one cluster of biofilms. All the sediments formed a single cluster, which included the Carolina mangrove biofilm community which showed only minor changes from its originating sediment community after enrichment. Predominantly, high current densities are associated with the enrichment of a few microorganisms, often within a single family; however, this organism can be different depending on the inoculum source. Because the selective enrichment selects for just a few bacteria, the biofilm community is significantly different from that of the sediment. While δ-proteobacteria (or the family Geobacteraceae) is dominant in many samples producing high current densities, other samples show communities with yet unidentified ARB as the major fraction.