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On the Second Method of Liapunov and its Application to the Steady Motion of a Gyroscope

Thesis Info

Author

Choudhary Muhammad Idrees

Department

Deptt. of Mathematics, QAU.

Program

MSc

Institute

Quaid-i-Azam University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

1967

Thesis Completion Status

Completed

Page

34

Subject

Mathematics

Language

English

Other

Call No: DISS/M.Sc MAT/17

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676715807857

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سفر ہے شرط۔۔۔

سفر ہے شرط۔۔۔۔

                                                                                                ڈاکٹرعارف حسین عارفؔ

دنیا کی سیر کرنا ، آنکھوں سے دیکھنا اور لفظوں میں دکھانا سب مختلف ہنر ہیں۔ جو شخص دنیا کی سیر کا حوصلہ رکھتا ہے وہ اپنی آنکھیں اور دل کھلا رکھے اور قلم رواں رکھے تو اس کا سفر نہ صرف اپنا سفر رہ جاتا ہے بلکہ وہ اپنے ساتھ ساتھ دوسروں کو بھی ،جو کبھی قیدِ مقام سے نہیں گزرے، اپنے ساتھ ساتھ لیے پھرتا ہے۔ سفر نامہ نگار کی یہی خوبی ہوتی ہے کہ وہ ایک افسانوی فضا قائم کر تے ہوئے داستانوی ماحول بناتے ہوئے ، قاری کو اس طرح اپنی گرفت میں لیتا ہے کہ اُس کے ذہن کی سکرین پر وہ تمام مناظر اپنا عکس لیے ساتھ ساتھ چلتے جاتے ہیں۔

ڈاکٹر الطاف یوسف زئی کا سفر نامہ’’ نیل کے سنگ‘‘ اس لحاظ سے ایک منفرد سفر نامہ ہے کہ جس میں داستانوی عنصر بھی پایا جاتا ہے اور افسانے کا اختصار بھی۔ انھوں نے چند صفحات میں ہی مصر کی ایسی سیر کرادی ہے کہ جو آدمی ایک مہینہ میں بھی شاید نہ کر سکتا ہو۔ تاریخ کی بھاری بھرکم کتابوں کو ہاتھ لگانے سے ڈر لگتا ہے اور پھر ان کا اسلوب بھی اتنا دل خراش ہوتا ہے کہ ایک آدھ صفحے کے بعد کتاب کو طاق پہ سجا دینا ہی مناسب لگتا ہے مگر الطاف صاحب نے سفرنامے کو اس طرح خوبصورت اسلوب اور دل کش پیرائے سے مزین کیا ہے کہ قاری ساتھ ساتھ سفر کرتا چلا جاتا ہے۔ سب سے بڑھ کر ان کے اسلوب میں جو بر محل اشعار اور احادیث اور اسلامی روایات کا استعمال ہے وہ ان کی علمیت کی خبر بھی دیتا ہے اور ساتھ ہی قاری کو ایک اسلامی اور ادبی روایت سے بھی...

الإسلام وقضايا المرأة

Fundamental aims of Islamic culture include welfare, happiness and progress of human society. Human being was created as the representative of Allah. Both man and woman are required to play an imperative role for the cause of serving humanity in a better way. No progress in the field of culture can be possible unless and until woman plays her divergent role in the society. Islam raised the status of woman to a great extent. She has been given rights to property, rights to take part in economic activities, rights to choose life partner, rights to determine his financial requirements and to overcome these and an honorable social status which was not given by the prior and other contemporary cultures and societies. It is a matter off act that woman occupied an important place during the Islamic Era and played an active role for the uplift of Society. In this article, I have tried to bring out the importance of the role of woman for the development of Islamic Culture and improvement of an Islamic Society.

Application of Chemicals to Break Corm Dormancy and Enhance Production in Gladiolus Gladiolus Grandiflorus

Ornamental bulbous plants have great value in the world floriculture industry and gladiolus possesses prominent position among them. Gladiolus plant is mainly grown for its flower spike but it can be used as an bedding and potting plant. The increase in demand of its spikes needs continuous cultivation to meet the market demands throughout the year but occurrence of dormancy in corms limits its cultivation to only one growing season in a year. Various chemicals were used to break corms dormancy and their effect on corm health was also studied. The effect of important factors which affects the breaking of corm dormancy including corm source, scales and varieties was studied. Among treatments the soaking of dormant corms in different concentrations of methanol in combination with plant growth regulators (gibberellic acid, 6-benzylaminopurine and indole acetic acid) was effective to break corm dormancy rather than individual application of chemicals. The descaled corms responded better to application of chemicals than the scaled ones. In another set of chemical treatments, the combined application of gibberellic acid with benzylaminopurine enhanced their effect to get the maximum germination percentage under controlled conditions of temperature at 26 o C in complete darkness. The combination of gibberellic acid with benzylaminopurine was found the best from the initial experiments and this combination was used to break corm dormancy under field conditions. The germination percentage increased as the concentration of gibberellic acid in combination with benzylaminopurine increased. The chemical analysis of treated and non treated corms revealed that there was maximum increase in total soluble sugars (6.98mg/g), gibberellic acid content (112.80ηg/g) and decrease in starch content (22.25mg/g), total phenolic content (91.57μg/g) and abscisic acid (27.32ηg/g) was recorded in treated corms. In the second part of the study, foliar application of gibberellic acid, 6-benzylaminopurine and salicylic acid was done at three different stages of growth of gladiolus plants. The plants which received foliar application of gibberellic acid showed an improvement in their vegetative characters i.e. the maximum increase in plant height (122.14cm), spike length (58.41cm), number of florets (13.49), corm diameter (4.43 cm), corm weight (25.34g), number of cormels plant-1(75.64), cormel weight plant-1(20.45 g), and also the chemical constituents of leaves including, chlorophyll content (7.72mg/g), total carotenoids (1.61mg/g), total soluble sugars (3.68mg/g), nitrogen (1.52%), phosphorus (0.28%) and potassium (0.64%). Whereas benzylaminopurine application increased the spike diameter (7.23 mm) and salicylic acid application acted to decrease the number of days to flower (64.93) and total phenolic content (0.62mg/g) of leaf compared to control plants. The foliar application of polyamines (putrescine and spermine) and vitamins (ascorbic acid and thiamine) at 0.1, 0.4, 0.7 and 1mM concentrations improved the morphological and physiological parameters. Putrescine application at 1mM concentration resulted in increased morphological parameters, the plant height (107.85cm), spike length (53.19cm), spike diameter (7.53 mm), florets spike-1(13.99), 1st floret diameter (9.66 cm), floret weight (4.90g), corm diameter (4.57cm) corm weight (26.16g), cormels plant-1(80.86), cormel weight (23.03g) and also improved the physiological attributes like chlorophyll content(8.06mg/g), total carotenoids (1.66mg/g), total phenolic content (0.89mg/g), total soluble sugars (4.75mg/g), nitrogen (1.42%), phosphorus (0.27%) and potassium (0.84%). Thus foliar application of gibberellic acid and putrescine is helpful to improve the economically valuable characteristics of gladiolus plant which may helpful for gladiolus growers to fetch more price in the market.