Analysis and Characterization of Natural Products
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Analysis and Characterization of Natural Products
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- Itemمؤتم ر سقيفة ب ن ساعدة دراسة نقدية تحليلية للروايات التاريخية المبكرة(2024-03-01) عثمان إسماعيل الطلAbstract The study deals with the narratives al-Saqifa conference according to six historians lived in the third and fourth centuries A.H/ ninth and tenth A.D, they are: Ibn Ishaq, Muhammad ibn Ishaq ibn Yasar (d. 151 A.H/ 768 A.D), "Al-Sira Al-Nabawiya", Ibn Sa`ed, Muhammad ibn Manee` al-Zuhri (died 230 A.H/ 845 A.D), "Al-Ṭabaqat al-Kubra", ,Al-Balaḏeri, Ahmad ibn Jaber (died: 279A.H/892 A.D), "Ansab al-’Ashraf", Al-Ya‘qubi, Ahmad ibn Abi Ya‘qub in wahab ibn Wadih (died: 284 A.H/ 897 A.D), "Tarikh al-Ya‘qubi", the book of "Al-Imama wa Al-Siyas", to anonymous author (from the middle of the third century A.H), Al-Ṭabari, Abu Ja‘far Muḥammad ibn Jarir (died: 310 A.H/923 A.D); "Tarikh al-Rusul wa-al-Muluk. The five sources of the study were chosen because they are considered among the early and important of Islamic historical sources, and their date back to different periods. In addition, they are distributed between different Muslims sects, such as Suni and Shite. The study adopts the historical method, by presenting the narratives of these historians about al-Saqifa conference and studing and analyzing their narratives and dimensions they contain which enable to know their points of view. مؤتمر سقيفة بني ساعدة دراسة نقدية تحليلية للروايات التاريخية المبكرة د. عثمان إسماعيل الطل جامعة القدس ، القدس الملخص تتناول الدراسة الروايات الوارد ة عن مؤتم ر السقيفة عن د ستة م ن المؤرخ ي الذين عاشو ا ف القرن ي الثال ث والرابع الهجري ي، وهم: ابن اسحق ، محم د ب ن اسحق بن يسا ر ) ت 151 هـ/ 768 م(، "الس ي ة النبوية" ، ومحم د ب ن سع د بن منيع الزه ر ي )ت 230 هـ/ 844 م(، "كتاب الطبقات الك ريى" ، "الس ية النبوية"، والبلاذري، أحم د بن يح ي بن جاب ر ) ت 279 هـ/ 892 م(، "أنساب الأ ر شاف"، واليعقور ب، أحم د بن أ ر ب يعقوب )ت 292 هـ/ 904 م(، "تاري خ اليعقور ب، و"الإمام ة والسياسة" لمؤلف مجهول "تو ف أواسط القرن الثالث الهجري"، والطريي، محم د بن جرير)ت 310 هـ/ 923 م(، "تاري خ الرس ل والملوك ". تم اختيا ر مصاد ر الدراسة الخمسة كونه ا تع د من المصاد ر التاريخية الإسلامية المبكرة والهامة، ف ه تعو د إلى ف ريات تاريخية مختلفة، وموزعة ب ي المصاد ر السنية والشيعية، والمنهج المتبع ف الدراسة ه و المنهج التاري خ من حيث عر ض روايات هؤلاء المؤرخ ي لمؤتم ر السقيفة، ودراس ة وتحليل رواياتهم وم ا تضمنه م ن أبعا د تمك ن من معرفة وجهات نظرهم.
- ItemEffect of Geographical Region and Harvesting Date on Antioxidant Activity, Phenolic and Flavonoid Content of Olive Leaves(Science and Education Publishing, 2014-12-06) Al-Rimawi, Fuad; Odeh, Imad; Bisher, Abdallah; Abbadi, Jehad; Qabbajeh, MohammadThe effect of geographical region and harvesting date (seasonal change) on antioxidant activities (AA), total phenolic content (TPC) and total flavonoid content (TFC) of olive leaves obtained from different geographical regions of Palestine (north, middle, and south) at different maturation stages (June 2013, October 2013, and January 2014) was investigated in this study. Results revealed that both geographical region and maturation stage affect AA, TPC, and TFC of the olive leaves. Highest AA, TPC, and TFC were obtained for samples collected in June. TPC was found to be highest in north and lowest in south, while the highest AA, and TFC contents were alternating between north, middle, and south. During different maturation stages, TPC, TFC, and AA varied between 21.56 - 47.52 mg (GAE), 19.3 - 32.6 mg catechin equivalents, 318.53 – 1106.43 μmol FRAP equivalents per gram of dry olive leaves, respectively.