الروايات التاريخية الأندلسية بين الفن والواقع دراسة مقارنة بين الأدبين العربي والأردي

Comparative study is one of the most important aspects of literary criticism in literature. It helps us to discover what differentiates the work of different writers in different literatures. It clarifies many important aspects which may have been left unnoticed while studying independently. It opens many vistas of literary research. In the present dissertation an effort has been made to compare Jurj฀ Zayd฀n, M฀r฀f al Arnaw฀t, Abdul Hal฀m Sharar and An฀yatull฀h Al-Tamash as historical novelists because most of these writers considered as pioneer of historical novels, while everyone is at top list in novel writing in respective country. The present work on a comparative study of historical novelists of Arabic and Urdu literature (about Spanish Era) may, perhaps, be the first research work in Arabic on four writers belonging to four different climates, cultures and origins by any University in Pakistan In this research work you will find out, the similarities and differences in the narrative techniques of writers in their novels and how these writers creates a conformity between romance and real history through literary innovation. In what way they represent the distinctive individualities and civilizations of a particular era. What aspects of theme, characterization and various narrative techniques they use to make the historical novel an attractive and coherent representation of the social and political life. There is a certain connection and dependence on history but using imagination how they contributes to color the descriptive details with romantic flavor. You will find out whether these writers work subordinated to history or distorting history. History tells us what really happens and fiction relates what can happen. In the historical novel the writer tries to create a coalition between history and fiction. In this research you will find that coalition.

Growth Bioregulation of Heat Stressed Maize by Exogenous Application of Thiourea

Heat stress is a main growth reducing factor for most crop plants. It is a serious risk for crop production around the world due to high ambient temperature. High temperature stress reduces yield of maize by negatively affecting the stomatal conductance, net photosynthetic rate, chlorophyll content and metabolites biosynthesis. Tolerance to heat stress can be increased by using different growth regulators. Thiourea has since long been known for its stress tolerance. The experiments were performed to determine physiological role of medium-supplemented thiourea (0.25 mM) in improving heat stress tolerance in maize using five hybrids (30Y87, DK6789, 30R50, 31R88 and 32B33) in autumn and spring seasons of the years 2014 and 2015. Data were recorded for growth, photosynthetic pigments, gas exchange, oxidative stress and antioxidants, osmoprotectant and mineral elements. The result revealed that autumn conditions were more toxic as compared to spring. Data on interactive studies of heat stress and thiourea showed that medium supplemented thiourea ameliorated the adverse effect of heat stress and improved proliferation of roots. Thiourea applied to heat stressed plants enhanced chlorophyll a and chlorophyll b, while its influence was more prominent on the sensitive (32B33) than tolerant (30Y87) maize hybrids. Thiourea application enhanced the net assimilation rate (A) and stomatal conductance (gs) and reduced sub-stomatal CO2 concentration (Ci). Moreover, thiourea application was effective in improving the contents of soluble phenolics, anthocyanins, ascorbic acid, niacin and riboflavin, which proved of great advantage to scavenge hydrogen peroxide and reduced malondialdehyde synthesis. Medium supplementation of thiourea enhanced the tissue contents of mineral nutrients such as N, P, K+, S, Ca2+ and Mg2+ in the shoot and root of maize meagerly under control and excessively under heat stress, which appeared to improve the root area and its function. In short, these studies described some specific properties of thiourea in enhancing growth of plant under heat stress which makes thiourea as an important bioregulator for root proliferation under control and stressful conditions.