Tertiary and Mesozoic Echinoids of Saudi Arabia
نویسندگان
چکیده
منابع مشابه
Influence on Saudi Arabia
"Broadcast" theory is one of the common theories explaining how phenomena and ideas spread. It is used by researchers in different fields of study. Having studied broadcast theory and its different components, this article tries to represent whether Islamic revolution of Iran has exerted influence on Saudi Arabia. And if positive, how it has influenced and how much it has been. The results sug...
متن کاملTertiary care availability and adolescent pregnancy characteristics in Saudi Arabia
BACKGROUND In this study, we aimed to assess the rate of adolescent delivery in a Saudi tertiary health care center and to investigate the association between maternal age and fetal, neonatal, and maternal complications where a professional tertiary medical care service is provided. METHODS A cross-sectional study was performed between 2005 and 2010 at King Abdulaziz Medical City, Riyadh, Sau...
متن کاملLow Levels of Chlamydia Trachomatis Isolation from Patients of Obstetrics and Midwifery in Saudi Arabia
کلامیدیا یکی از علل عمده عفونت های ادراری - تناسلی در سراسر دنیا می باشد. عفونت ناشی از این ارگانیسم به طور متداول در کلینک های زنان و مامایی یافت می شود. جداسازی بوسیله کشت بافت، طریق استاندارد و بسیار حساسی جهت اثبات این عفونت می باشد هر چند که توسط روش های مستقیم تعیین آنتی ژن با استفاده از ایمونوفلورسنت یا تعیین عیار آنزیم سرمی و اخیراً نیز بوسیله بررسی ژنتیکی با تکنیک واکنش زنجیره پلیمراز ت...
متن کاملRatio Analysis: A Comparative Study of National Petrochemicals Co. and Sahara Petrochemicals Co. of Saudi Arabia
Financial Statement of a company is a reflection of the operational and financial position of a company. The comparative analysis of two companies similar in nature, size, work, location and objectives etc., facilitates an understanding of the operational and financial soundness of the companies. The Kingdom of Saudi Arabia is aiming for rapid industrialization in its economy. Sahara Petrochemi...
متن کاملA review of the regional status of Iran and Saudi Arabia during the period after ISIS
Iran and Saudi Arabia have been engaging in regional competition over the past four decades. One of the events that made this competition impressive was the emergence of ISIS in Iraq and Syria. In such a way as to bring the two actors into an open hostility. Therefore, the present study sought to answer the question of how did the end of political life of this group affect the regional status o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Smithsonian Contributions to Paleobiology
سال: 1972
ISSN: 0081-0266
DOI: 10.5479/si.00810266.10.1