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马来半岛东部晚三叠世岩浆作用及其古特提斯构造意义

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大地构造与成矿学 2024年第3期48卷 493-511页

作者：余永琪钱鑫王岳军 mustapha Khairul Azlan 张玉芝中山大学地球科学与工程学院广东省地球动力作用与地质灾害重点实验室南方海洋科学与工程广东省实验室(珠海)广东珠海519082 Department of Geology University of MalayaMalaysia Kuala Lumpur 50603

马来半岛广泛发育的晚古生代‒早中生代岩浆作用完整地记录了古特提斯洋俯冲‒碰撞‒消亡的演化历史。该洋盆于中‒晚三叠世关闭,随之发生陆‒陆碰撞、地壳增厚以及造山带垮塌,区域上形成大规模的碰撞后火成岩,构成了东南亚古特提斯巨型火成... 详细信息

马来半岛广泛发育的晚古生代‒早中生代岩浆作用完整地记录了古特提斯洋俯冲‒碰撞‒消亡的演化历史。该洋盆于中‒晚三叠世关闭,随之发生陆‒陆碰撞、地壳增厚以及造山带垮塌,区域上形成大规模的碰撞后火成岩,构成了东南亚古特提斯巨型火成岩带东部和中部花岗岩省的重要组成部分,但关于其岩石成因及构造背景仍然存在不同认识。因此,本文对马来半岛东部晚三叠世花岗岩开展了详细的岩相学、年代学以及地球化学研究,并结合区域地质资料综合探讨了晚三叠世岩浆作用的演化规律及深部动力学过程。研究表明马来半岛东部晚三叠世花岗岩可以分成两组:第一组为231~222 Ma,样品显示出较为富集的同位素特征((^(87)Sr/^(86)Sr)i=0.72040~0.72518,εNd(t)=−10.4~−6.7,εHf(t)=−11.5~+0.1),来自变火成岩和变杂砂岩的混合源区;第二组样品形成于218~216 Ma,对应的(^(87)Sr/^(86)Sr)i=0.70576~0.71464,εNd(t)=−9.1~−3.9,εHf(t)=−3.9~+1.9,表明其源区存在一定新生地壳物质的参与,且Ga/Al、FeO^(T)/(FeO^(T)+MgO)值及锆石饱和温度相对较高,具有典型的A型花岗岩特征。年代学结果表明古特提斯东部和中部花岗岩省晚三叠世岩浆作用的峰期为220 Ma,且具有相似的元素‒同位素变化规律,证实古特提斯洋碰撞后造山垮塌主要发生于220 Ma,软流圈上涌促使中‒下地壳物质发生部分熔融从而形成了区域大规模的岩浆作用。

关键词：晚三叠世岩浆作用地球化学碰撞后古特提斯洋马来半岛

An Overview of the Use of Medicinal Plants in Regenerative Dentistry

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Open Journal of Stomatology 2023年第1期13卷 50-88页

作者： Sara Dhoum Samir Ibenmoussa mustapha Sidqui Faculty of Dental Medicine Hassan II University Casablanca Morocco Faculty of Medicine and Pharmacology Hassan II University Casablanca Morocco

Aim: The oral cavity has the particularity to host multiple hard and soft tissues, in this paper, we will discuss the current therapies that lead to cell differentiation by regenerative therapies and the future alternatives proposed by medicinal plants and all the regenerative potential of these different tissues. Material and Methods: A detailed review of the literature through the various search engines: Scopus, PubMed, google scholar, Cochrane, etc., uses the selected keywords to explore the effect of the regenerative potential of several medicinal plants. Results: Through our research, we have proceeded to sort different medicinal plants, according to their repairing and regenerative potential on the different tissues of the oral cavity. Conclusion: Future studies are conceivable to explore the opportunities and potential provided by medicinal plants in the field of regenerative dentistry.

关键词： Medicinal Plants Medicinal Herbs Tissue Regeneration Enamel Remineralization Dental Pulp Periodontal Regeneration Bone Regeneration Wound Healing Stem Cells Differentiation Odontoblastic Differentiation Oral Cavity Herbal Extract Oral Tissues

Improved Structure and Efficiency of a Nano-Structured Organic Light Emitting Diode

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材料科学与工程（中英文版） 2011年第1期5卷 56-60页

作者： Nazir mustapha Zakia Fekkai Department of Physics AI Imam University Riyadh 11623 Saudi Arabia

Wind Energy Conversion Systems Adapted to the Tunisian Sites

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Smart Grid and Renewable Energy 2013年第1期4卷 57-68页

作者： Fathi Ben Amar mustapha Elamouri Department of Technology Preparatory Institute for Engineering Studies of Sfax (IPEIS) Sfax Tunisia

The choice of a wind turbine for a given site is a very significant operation. It is advised to make an in-depth study on the characteristics of the aerogenerator and the implantation site before any installation of a wind farm for choosing well the system best adapted to the energy needs. The objective of this study is to sensitize the users of the wind energy on the various problems involved in the aerogenerator installation on any site and to provide a decision-making aid to the judicious choice of the wind system best adapted. The idea is to estimate, for a selected implantation site, the energy production and the operating time of several wind systems. We can thus select the aerogenerator best adapted by making a compromise between a maximum recovery of energy and a high time of production. The influence height of the aerogenerator on energy profitability is also studied. We apply this step to the twenty six Tunisian synoptic sites by implantation scenarios of seven wind systems of various nominal speeds in function of the height.

关键词： Tunisia Wind Energy Wind Turbine Meteorological Method

Mathematical modeling of COVID-19 epidemic with effect of awareness programs

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Infectious Disease Modelling 2021年第1期6卷 448-460页

作者： Salihu Sabiu Musa Sania Qureshi Shi Zhao Abdullahi Yusuf Umar Tasiu mustapha Daihai He Department of Applied Mathematics Hong Kong Polytechnic UniversityHong KongChina Department of Mathematics Kano University of Science and TechnologyWudilNigeria Department of Basic Sciences and Related Studies Mehran University of Engr.&Tech.JamshoroPakistan JC School of Public Health and Primary Care Chinese University of Hong KongHong KongChina Shenzhen Research Institute of Chinese University of Hong Kong ShenzhenChina Department of Computer Engineering Biruni UniversityIstanbulTurkey Department of Mathematics Science FacultyFederal University DutseJigawaNigeria Department of Mathematics Near East University TRNCMersin 10Turkey

Severe acute respiratory syndrome coronavirus 2(SARS-COV-2)is a novel virus that emerged in China in late 2019 and caused a pandemic of coronavirus disease 2019(COVID-19).The epidemic has largely been controlled in China since March 2020,but continues to inflict severe public health and socioeconomic burden in other parts of the *** of the major reasons for China’s success for the fight against the epidemic is the effectiveness of its health care system and enlightenment(awareness)programs which play a vital role in the control of the COVID-19 *** is currently witnessing a rapid increase of the epidemic likely due to its unsatisfactory health care system and inadequate awareness *** this paper,we propose a mathematical model to study the transmission dynamics of COVID-19 in *** model incorporates awareness programs and different hospitalization strategies for mild and severe cases,to assess the effect of public awareness on the dynamics of COVID-19 *** fit the model to the cumulative number of confirmed COVID-19 cases in Nigeria from 29 March to 12 June *** find that the epidemic could increase if awareness programs are not properly *** presumed that the effect of awareness programs could be ***,our results suggest that the awareness programs and timely hospitalization of active cases are essential tools for effective control and mitigation of COVID-19 pandemic in Nigeria and ***,we perform sensitive analysis to point out the key parameters that should be considered to effectively control the epidemic.

关键词： COVID-19 Epidemic Mathematical modeling Reproduction number Public awareness

Socio-Demographic Factors Associated with Psychoactive Substance Use among Commercial Motorcycle Operators in Kano, Nigeria

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Open Journal of Psychiatry 2016年第1期6卷 76-85页

作者： mustapha Ibrahim Gudaji Zahraddeen Garba Habib Department of Psychiatry Faculty of Clinical Sciences College of Health Sciences Bayero UniversityKano Nigeria Aminu Kano Teaching Hospital Kano Nigeria

Background: Psychoactive substance use was common among commercial motorcycle operators. Studies had shown that there were some socio-demographic factors which were commoner among commercial motorcycle operators who used psychoactive substances. However, this was not explored among commercial motorcycle operators in Kano, North Western Nigeria. Aim: The aim of the study was to determine the socio-demographic factors associated with psychoactive substance use among motorcycle operators in Kano, Northwestern Nigeria. Methods: It was a cross-sectional study. Instrument used for data collection included socio-demographic questionnaire and World Health Organisation Student Drug Use Questionnaire. Data analysis was done using Statistical Package for Social Sciences (SPSS) 16th edition. Results: Commercial motorcycle operators who used substances were found to be of younger age group (X2 = 10.9, P 2 = 4.3, P = 0.034) and had a father who used tobacco (X2 = 4.28, P = 0.04). Participants who were single were more likely to use inhalants (X2 = 21.06, P =0.001), opiates (X2 = 11.82, P = 0.012), cannabis (X2 = 5.12, P = 0.028) and stimulants (X2 = 5.12, P = 0.028) compared to those who were married. Conclusion: This study found that being of younger age, being single, and having a father who smoked were significantly associated with psychoactive substance use. Participants who were singles were more likely to use inhalants, opiates, cannabis and stimulants. No relationship was observed between the age of the respondents and specific substance use. Legislations should be enacted to reduce the rate of psychoactive substance use among motorcycle operators and general population at large.

关键词： Psycho-Active Substance Sociodemographic Factors Motorcycle Operators SDUQ Nigeria

Ocular syphilis: resurgence of an old disease in modern Malaysian society

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International Journal of Ophthalmology(English edition) 2018年第9期11卷 1573-1576页

作者： Mushawiahti mustapha Zakaria Abdollah Amin Ahem Hazlita Mohd Isa Mae-Lynn Catherine Bastion Norshamsiah Md Din Department of Ophthalmology Pusat Perubatan Universiti

Dear Editor,Syphilis is a spirochaetal bacterial sexually transmitted disease（STD） caused by Treponema pallidum. Outbreaks of syphilis have been described in Western communities, especially in men who have sex with men（MSM） and people infected with human immunodeficiency virus（HIV）^（[1]）. Reports of the condition from Asian countries remains limited.

关键词： Ocular syphilis OS OD HIV MSM resurgence of an old disease in modern Malaysian society

Lithological Mapping Using Landsat 8 OLI in the Meso-Cenozoic Tarfaya Laayoune Basin (South of Morocco): Comparison between ANN and SID Classification

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Open Journal of Geology 2021年第12期11卷 658-681页

作者： Amine Bouwafoud mustapha Mouflih Abdelmajid Benbouziane Hassan II University of Casablanca Faculty of Sciences Ben M’sik Geosciences and Application Laboratory (LGA) Sidi Othmane Casablanca Morocco

In the Saharian domain, the Tarfaya-Laayoune coastal basin developed in a stable passive margin, where asymmetrical sedimentation increase from East to West and reach a sediment stack of about 14 kilometers. However, the morphology of the studied area corresponds to a vast plateau (hamada) presenting occasional major reliefs. For this purpose, remote sensing approach has been applied to find the best approaches for truthful lithological mapping. The two supervised classification methods by machine learning (Artificial Neural Network and Spectral Information Divergence) have been evaluated for a most accurate classification to be used for our lithofacies mapping. The latest geological maps and RGB images were used for pseudo-color groups to identify important areas and collect the ROIs that will serve as facilities samples for the classifications. The results obtained showed a clear distinction between the various formation units, and very close results to the field reality in the ANN classification of the studied area. Thus, the ANN method is more accurate with an overall accuracy of 92.56% and a Kappa coefficient is 0.9143.

关键词： Tarfaya-Laayoune Basin Geological Mapping Supervised Classification Artificial Neural Network Spectral Information Divergence

Parents’ and caregivers’ attitudes towards malaria, and health care seeking practices for their febrile children in a hospital in north-eastern Nigeria

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Advances in Health and Behavior 2019年第1期2卷 69-74页

作者： Mohammed Abba mustapha Ahmed Dahiru Balami Department of Paediatrics State Specialist Hospital Maiduguri Borno state Nigeria Department of Community Health Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia

Despite the very high burden of malaria among children in Borno state, the proportion of those who receive standard treatment has been very low. This study aimed to determine malaria knowledge, attitude towards prevention, and health care seeking behaviours of parents or caregivers of children presenting with fever at the paediatric clinic of a secondary-level hospital in Maiduguri, Borno state, Nigeria. A cross-sectional study design was used to obtain information from the respondents. Data were collected using a structured questionnaire, from the parents or caregivers of children presented to the Paediatric clinic with history of fever, and analysed in SPSS. A total of 331 respondents were finally recruited into the study. The ages of the children ranged from one to fourteen years. Some of them (15.3%) were internally displaced persons (IDPs). As many as 90.7% and 91.9% of the respondents believed that malaria is a life-threatening illness, and ITNs could prevent malaria, respectively. Less than a half of them (42.3%) had immediately brought their children to the hospital once they detected the fever. At the hospital, only 202 (60.7%) of the children had had malaria parasite test done on them, of which 89.1% tested positive. Permanent residents were more likely to promptly take their children to the hospital, one they detected fever, compared to IDPs ( 2=12.401, df =1, p=0.002). There is the need for promoting early presentation of febrile children to health centres, and also promoting routine malaria tests for febrile persons.

关键词： malaria attitudes health care seeking behaviour fever children