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Sufian Eltayeb Mohamed,MOISE G. SIDIROPOULOS 중앙대학교 경제연구소 2010 Journal of Economic Development Vol.35 No.2
The paper is concerned with the analysis of the main determinants of foreign direct investment in MENA countries. The estimation is run on the eterminants of FDI in our sample which consist of 36 countries. 12 of these countries were in MENA countries and another 24 were the major recipients of FDI in their respective regions in developing countries. By employing a panel data methodology the study investigates whether the determinants of FDI are similar to the other FDI receiving developing countries. The study reveals that the key determinants of FDI inflows in MENA countries are the size of the host economy, the government size, natural resources and the institutional variables. The paper concludes that, countries that are receiving fewer foreign investments could make themselves more attractive to potential foreign investors. So, the policy makers in the MENA region should remove all barriers to trade, develop their financial system and build appropriate institutions.
Sufian, Saira Naz,Masroor, Imrana,Mirza, Waseem,Butt, Sehrish,Afzal, Shaista,Sajjad, Zafar Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.15
Background: Breast malignancies are one of the leading causes of deaths in females worldwide. There are a number of risk factors associated with breast cancer but in Karachi Pakistan there are insufficient data available. Materials and Methods: A case control study was conducted on females in age group between 30-80 years. This study was accomplished by retrospective data collection in Aga Khan University Hospital Karachi, Pakistan. A total of 108 females with primary malignancy of breast were included along with 108 matched controls. Relationship of various factors with disease was studied using logistic regression to calculate odds ratios with 95 % confidence intervals. Results: A total of 14 variables were analyzed and based on and 7 were found to be risk factors: old age, family history of breast cancer, family history of other carcinomas, personal history of breast carcinoma, early age of menarche, older age of mother at first delivery and lower number of children. Five factors, parity, breast feeding, history of oral contraceptive pills intake, past history of oophorectomy and hysterectomy showed protective associations. One variable, use of hormonal replacement therapy, showed a controversial link and one other, marital status, was not significant in this study. Conclusions: It is concluded that most of the well-known risk factors for breast cancer are also associated with the disease in the female population of Karachi, Pakistan. High risk patients should be the focus with the help of this study so that screening can be more effective for early diagnosis before clinically evident breast malignancy.
Sufian Rasheed,Naseer Ahmad,Muhammad Anwar Ul Haq,Waqas Ahmad,Dilshad Hussain,Sirajuddin 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.128 No.-
The present work focuses on the synthesis and optimization of highly stable, bare silver nanoparticles(AgNPs) as colorimetric sensor for trace-level detection of omeprazole. A novel approach combiningAgNPs-based paper sensor and smartphone technology enables real-time analysis of omeprazole. Thecolor change observed by the naked eye and shift in localized surface plasmon resonance (LSPR) wereused to construct calibration curves. Both LSPR-based colorimetric sensing and paper-based sensingapproaches were utilized for omeprazole detection in complex matrices. The limits of detection (LODs)were determined as 15 nM and 240 nM, with linear dynamic ranges of 0.05–40 lM and 0.1–50 lM,respectively. Recovery studies demonstrated % recoveries within the acceptable range of 90–110% andrelative standard deviation (RSD) below 2%. Detailed characterizations including Fourier-TransformInfrared - (FTIR) Spectroscopy, Dynamic Light Scattering (DLS), zeta potential, Atomic ForceMicroscopy (AFM), and Field-Emission Scanning Electron Microscopy (FE-SEM) provided insights intosensing mechanism. This work offers a promising and practical solution for real-time omeprazole analysiswith potential applications extending beyond pharmaceutical formulations. The developed colorimetricsensor based on AgNPs demonstrates high stability, sensitivity, and versatility, making it suitable foron-site and point-of-care omeprazole detection in various samples, including serum, plasma, urine, seawater, and tap water.
Sufian, Saira Naz,Masroor, Imrana,Mirza, Waseem,Hussain, Zainab,Hafeez, Saima,Sajjad, Zafar Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.11
Objective: To determine the accuracy of magnetic resonance imaging (MRI) in detection of metastasis in pelvic and para-aortic lymph nodes from different gynecological malignancies. Materials and Methods: This retrospective cross sectional analytic study was conducted at the Department of Diagnostic Radiology, Aga Khan University Hospital Karachi Pakistan from January 2011 to December 2012. A sample of 48 women, age range between 20-79 years, fulfilling inclusion criteria were included. All patients had histopathologically proven gynecological malignancies in the cervix, endometrium or ovary and presented for a pretreatment MRI to our radiology department. Results: MRI was 100% sensitive and had a 100% positive predictive value to detect lymph node metastasis in lymph nodes with spiculated margins and 100% sensitive with a 75% positive predictive value to detect lymph node metastasis in a lymph node with lobulated margins. The sensitivity and positive predictive value of MRI to detect heterogeneous nodal enhancement were 100% and 75% respectively. Conclusions: Our study results reinforce that MRI should be used as a modality of choice in the pretreatment assessment of lymph nodes in proven gynaecological malignancies in order to determine the line of patientmanagement, distinguishing surgical from non-surgical cases.
SUFIAN ELTAYEB MOHAMED;MOISE G. SIDIROPOULOS 경제연구소 2010 Journal of Economic Development Vol.35 No.2
The paper is concerned with the analysis of the main determinants of foreign direct investment in MENA countries. The estimation is run on the determinants of FDI in our sample which consist of 36 countries. 12 of these countries were in MENA countries and another 24 were the major recipients of FDI in their respective regions in developing countries. By employing a panel data methodology the study investigates whether the determinants of FDI are similar to the other FDI receiving developing countries. The study reveals that the key determinants of FDI inflows in MENA countries are the size of the host economy, the government size, natural resources and the institutional variables. The paper concludes that, countries that are receiving fewer foreign investments could make themselves more attractive to potential foreign investors. So, the policy makers in the MENA region should remove all barriers to trade, develop their financial system and build appropriate institutions.
Sufian, Fadzlan,Kamarudin, Fakarudin KNU The Institute of Management Economy Research 2014 Asia-Pacific Journal of Business Vol.5 No.1
The study provides new empirical evidence on the level of profit efficiency and returns to scale of the Bangladesh banking sector. We employ the Slack-Based Data Envelopment Analysis (SBM-DEA) method to assess the level of profit efficiency of individual banks over the years 2004 to 2011. The empirical findings indicate that the Bangladesh banking sector has exhibited the highest and lowest level of profit efficiency during years 2004 and 2011 respectively. We find that only eight banks have been profit efficient throughout the period under study. The empirical findings seem to suggest that most of the Bangladesh banks have been experiencing economies of scale due to being at less than the optimum size, or diseconomies of scale due to being at more than the optimum size. Thus, decreasing or increasing the scale of production could result in cost savings or efficiencies.