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Analyzing the effects of 2,4-dichlorophenoxyacetic acid on the Callogenesis of super Basmati and Shaheen Basmati

Thesis Info

Author

Maria Jabeen

Supervisor

Nayla Jabeen

Department

Department of Bioinformatics and Biotechnology

Program

BS

Institute

International Islamic University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2017

Thesis Completion Status

Completed

Page

v, 35

Subject

Bioinformatics & Biotechnology

Language

English

Other

BS 572.2 MAA

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676723577066

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اعترافِ جرم

 اعترافِ جرم

چئیر مین ذوالفقار علی بھٹو کا قتل سابق چیف جسٹس سپریم کورٹ کا اعتراف جرم جن ججوں نے انہیں پھانسی کی سزا سنائی انہیں قبروں سے نکال کر مقدمات چلائے جائیں ۔انہوں نے وہ ظلم کیا جس کی سزا پاکستان آج تک بھگت رہا ہے ۔

 

Research on Learning Strategies in Arabic Language Education

The learning of Arabic language like any other foreign language contains four main aspects; reading, writing, speaking and understanding while listening.[i] This learning process can be enhanced if the most appropriate Learning Strategy is used. In this paper the most appropriate Learning Strategy of Arabic Language is suggested. The course outlines for Arabic language are thoroughly studied and several professors and experts of Arabic Language from Pakistan, Egypt, Saudi Arabia and Sudan are interviewed. The author, who himself has vast experience in teaching Arabic language, also had the opportunity to sit in the Arabic language classes to observe various strategies and methodologies adopted by different professors while teaching Arabic. In this paper the time spent on teaching Arabic to the students is also discussed. The appropriate size of the class room i.e, the number of students in Arabic language class also matters in improving the quality of Arabic among the students. The matter of teaching Arabic in Arabic only or in the native language of the students will also be touched in here. As the time has changed and the world is moving ahead on a fast pace, it seems necessary to apply the “Direct Method” while teaching Arabic or any foreign language.[ii] This paper will shed light on what is meant by “Direct Method”. The idea of making the student sit and memorize the dry rules of grammar has become obsolete. The idea of telling the student what part of the phrase is subject or predicate, or what is object and what is a noun or verb, may come later. The idea of memorizing the bulk of new vocabulary in the beginning can also be postponed. Hence a paradigm shift is needed here while talking about the Methodology of Teaching Arabic Language, under the heading of “Direct Method”.   [i]     Muhammad Abdul Khaliq, Professor of Arabic and co-author of 'al-Arabia baina Yadaik'. The author of this research paper had a personal interview with him on 21.03.2014, in the Institute of Arabic Language, King Saud University, Riyadh, Saudi Arabia. [ii]    This method is adopted roughly by some great scholars of Arabic language like Dr. V. Abdur Rahim who taught Arabic language for decades in the Islamic University of Madina, Kingdom of Saudi Arabia. The author was fortunate to meet with him many times and get benefitted from his experience. See for details: Abdurrahim, V. (1999), Arabic Course for English-Speaking Students, Leicester: UK Islamic Academy. See also: Abdullah, F. Ibrahim. (1999), Iqra Arabic Reader. Chicago: Iqra International Educational Foundation. Moreover see: Fawzan, Abdurrahman and others. (2004), Al-Arabia Baina Yadaik, Riyadh: Ministry of Education.

Freshwater Mussel Anodonta Cygnea As a Bioindicator for Monitoring of Pollution Status in River Kabul, Pakistan

The main objectives of this work were to investigate physico-chemical and heavy metal contaminations in water and sediments as well as their accumulation, histopathology and genotoxicity in Freshwater mussels of River Kabul. For this purpose water sample A (reference site 1), water sample B (polluted site 2), water sample C (polluted site 3) and water sample D (polluted site 4) upstream and downstream of River Kabul were collected during winter and summer periods and analyzed for eight physico-chemical parameters (pH, TSS, TDS, TA, Cl, K, EC, Na) and nine heavy metals (Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Zn) and compared with water sample A and NEQS recommended limits. All the studied physico-chemical and heavy metal parameters in water samples A, B, C and D except TSS andHg were below the NEQS proposed limits, where the values of TSS and Hg were above the NEQS recommended limits in all the water samples A, B, C and D. Thus the overall sequence of different water samples was D > C > B > A. This highlights that water sample D had higher and sample A had lower physico-chemical and heavy metal contaminations. Water samples A and B had highest TDS and lowest K for low flow and had highest TSS and lowest K for high flow seasons. Similarly water samples C and D showed highest TDS and lowest pH for low flow and showed higher TSS and lower K for high flow periods. Among heavy metals water sample A had highest Zn and lowest Cr for both summer and winter seasons. Water sample B showed higher Zn and lower Cu for summer and greater Zn and smaller Hg for winter seasons. Similarly water samples C had greater Zn and smaller Cu for both summer and winter seasons. Similarly water samples D had higher level of Zn for summer and greater Zn and lower Hg for winter seasons. Similarly among the studied heavy metals in sediments sample A had highest Fe and lowest Hg for both summer and winter seasons. Sediments sample B, had highest concentration of Fe and lowest concentration of Hg for both summer and winter seasons. Similarly sediments sample C had highest Fe and lowest Hg for both summer and winter seasons. Similarly sediments sample D had highest concentration ofFe and lowest concentration of Hg for both summer and winter seasons. This investigation was further aimed to determine bioaccumulation of heavy metals including Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, and Zn in soft tissues of freshwater mussels.Overall order of metals concentration in different tissues showed that Fe was the highly and Hg was the lowest accumulated metals. This study was further meant to investigate histopathological impacts of heavy metals in soft tissues were degeneration of epithelium, lipofusin pigments, atrophy, inflammation, necrosis and granulocytoma in digestive gland. In gonads necrosis, inflammation, atresia, lipofusin pigments and granulocytoma were found. While in gills the degeneration of cilia, fusion of gills lamellae, haemocytic infiltration and gills swelling was recorded. Similarly in intestine degeneration of epithelium and its cillia were found. The highest intensity of histopathological lesions was recorded in site 4 and lowest in site1. Furthermore the present investigation was conducted to assess genotoxical impacts of heavy metals in hemolymph of selected freshwater mussels. Therefore degree of DNA damage like TCS and comet class 0, class 1, class 2, class 3 and class 4 were determined. The order of sites according to DNA damage was 4 > 3 > 2 > 1, i.e. the highest DNA damage was noticed in site 4 while lowest in site 1.