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probabilistic packet marking scheme integrate with firewall and intrusion detection system

Thesis Info

Author

Norin Abdul Sattar

Supervisor

Muhammad Sher

Department

Department of Computer Science & Software Engineering

Program

MS

Institute

International Islamic University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2015

Thesis Completion Status

Completed

Page

46

Subject

Computer Science

Language

English

Other

MS 004 NOP

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676721944008

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آج کا طالب علم غیر ذمّہ دار ہے

آج کا طالب علم غیر ذمہ دارہے
نحمدہ ونصلی علی رسولہ الکریم امّا بعد فاعوذ بااللہ من الشیطن الرجیم
بسم اللہ الرحمن الرحیم
معزز اسا تذہ کرام اور میرے ہم مکتب ساتھیو!السلام علیکم ! آج مجھے جس موضوع پر گفتگو کرنی ہے وہ ہے:’’آج کا طالب علم غیر ذمہ دار ہے‘‘
جنابِ صدر!
آج کا طالب علم واقعی غیر ذمہ دار ہے، اس کی ہمہ وقت الیکٹرانک میڈیا کے ساتھ نشست ، پورا وقت غیر ضروری پروگرام کی سماعت، جملہ اوقات ضرور یہ کے ضیاع میں دلچسپی، یہ تمام امور اسی بات کے غماض ہیں کہ اس دور میں علم کے طالب غیر ذمہ دار ہیں۔
جنابِ والا!
تعلیم کے حصول میں چستی ،لگن اور دلچسپی انتہائی اہمیت کی حامل ہیں ، چاک وچوبند طالب علم حصول علم میں کوئی دقیقہ فروگذاشت نہیں کرتا۔ تساہل، غفلت، سستی اور کاہلی کے چیتھڑوں میں ملبوس نونہال کسی میدان میں بھی کار ہائے نمایاں سرانجام نہیں دے سکتا اور یہی خصلت ِقبیحہ اسے غیر ذمہ دار بناتی ہے۔
صدرِ ذی وقار!
آج کا طالب علم غیر ذمہ دار کیوں ہے، اس لیے کہ اسے وقت کی قدرنہیں ہے، اپنے عظیم لمحات زیست وہ لہو د لعب میں گزار دیتا ہے۔ وقت کا ضیاع اور اس عظیم نعمت کی بے قدری اس کی فطرت ثانیہ بن چکی ہے۔ وقت کی قدرنہ کرنے والانو نہال کبھی شجر سایہ دار نہیں بن سکتا اور ایسی چیز اس کے جسم و جان سے ذمہ داری کی قوت لایموت کوختم کردیتی ہے۔
محترم سامعین!
جدید سائنسی ایجاد موبائل کے غیر ضروری استعمال نے اس سے صفت ذمہ داری چھین لی ہے اور وہی ہمہ وقت اس ایجاد سے وابستہ رہنے کے باعث دیگر ضروری امور کی انجام دہی سے قاصر رہتا ہے، نیز اس میں مشغولیت کی بدولت اپنے وقت...

Religiosity for Promotion of Behavior: Role of Islamic Worships in Moral Development of Muslim Youth

The question of moral rectitude and upbringing of youth in the current social arena is the contemporary discovery attributed to social and family norms that also undergo change due to social and economic reasons. Consequently, deferring levels of piety become more or less acceptable according to an individual’s surroundings and age. The study was done to determine the association between religiosity and behaviors likely to improve the moral, social and psychological habits of young Muslims. The discussion of the article contextualizes the effects of observing practices of Islam on a larger scale. A sample study of this research can be used as evidence to counter the contemporary environment which inevitably generates contradictions for young people. The contradictions result in uncertainty and materialistic atmosphere which does not cater to their spiritual needs and the requirements to develop as the youth of Ummah. Yet, we cannot stop or avoid the negative channels and their effects prevailing on the internet. We can; however, extend the positive spiritual energy in youth that is only possible through careful observance of religious practices comprising regular prayers, fasting, charity and pilgrimage (Hajj). The current apathy of our youth towards the religious injunctions may be attributed to social and family norms that are in some cases relative to the economic conditions and social backup. This will evaluate and assess the way and means of effective inlaying of moral fields where our young people can improve their moral aptitude and rectitude. The impasse of current moral turpitude can be shattered with the bounding relation of human activity and Islamic ritual.

Bioassay-Guided Isolation and Structure Elucidation of Steroidal Alkaloids from Sarcococca Saligna D. Don Muel

The main focus of this PhD research project is the isolation, structure elucidation and bioassay of steroidal alkaloids of medicinally important plant Sarcococca saligna, belongs to Buxaceae family. Five compounds were isolated from the chloroform fraction of S.saligna through phytochemical investigation i.e. Alkaloid-C (1), Dictyophlebine (2), Sarcovagine-D (3), Saracodine (4) and Holaphylline (5). The structure of compounds was determined through modern spectroscopic techniuqes. These steroidal alkaloids were then screened for various In-vivo biological assays such as hepatoprotective and antidiabetic, while also tested In-vitro biological activities such as immunosuppresent, antibacterial, antifungal, phtotoxicity, insecticidal, cytotoxicity and leshmanicidal activity. The compounds were also investigated as steroidal aromatase inhibitors through molecular docking studies against breast cancer. The selected steroidal alkaloids were screened for In-vivo hepatoprotective and antidiabetic activities. The compounds 1, 3 and 5 markedly decreased hepatic injury by CCl4-injury inducer and mixed inflammatory penetration. Therefore, we explored and suggest that steroidal alkaloids from S.saligna could be excellent hepatoprotective agents. The isolated steroidal alkaloids were also tested for the antidiabetic potential and the result showed that compounds 3 and 5 reduced the glucose level significantly in blood and also make better others diabetes associated complications. The isolated steroidal alkaloids were screened for In-vitro biological assays. Compound 1, 3 and 5 were screened for immunosuppressant activity. Compounds showed inhibitory activities of T-cell proliferation in the range of 78 to 95% and also inhibit IL-2 production which means the tested compounds were excellent immunosuppressive agents. The compounds 2, 3 and 5 were screened for antibacterial activity. The compound 2 showed significant antibacterial activity against S.aureus (79%). The compound 3 showed significant antibacterial activity against P.aeruginosa (79%), while compound 5 showed good antibacterial activity against B.subtilus (72%) and P.aeruginosa (69%) respectively. The isolated steroidal alkaloids were screened for antifungal activity against various pathogenic fungi and showed low to moderate antifungal actions. Compounds 1 and 3 showed low antifungal activity while compound 5 showed moderate antifungal activity against selected pathogenic fungi. The selected steroidal alkaloids were also screened for antileshmanial activity. Compounds 4 showed moderate antileshmainal activity while compound 5 showed significant inhibition against the promastigotes of L. tropica. The phytotoxic effect of compound 5 was observed maximum 66%, while 1 and 2 showed low activity at different concentration level. The isolated steroidal alkaloids were tested for insecticidal activity and among them compound 5 showed maximum activity 65% against T.castaneum, while showed low activity against R.dominica and C.analis (20% and 10%) respectively. The selected steroidal alkaloids were screened for antioxidant actions in which compounds 3 and 5 showed significant antioxidant actions and radical scavenging activity increased up to 78% and 80%. The isolated compounds were also screened for anticancer activity in which compound 2 found to be more active with IC50 value 6.13±0.345, while compound 1 showed moderate anticancer activity with IC50 values 12.98±0.235 against HeLa cells lines. The compounds were to explore as a new steroidal aromatase inhibitors through molecular docking studies in which compound 5 and 1 were active against aromatase enzyme in breast cancer could provide new lead compounds.