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Trichomonas vaginalis infection in a low-risk women attended in Obstetrics and Gynaecology Clinic, Universiti Kebangsaan Malaysia Medical Centre

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Asian Pacific Journal of Tropical Biomedicine 2016年第8期6卷 702-705页

作者： norhayati Moktar nor Liyana ismail Phoy Cheng Chun Mohamad Asyrab Sapie nor Farahin Abdul Kahar Yusof Suboh noraina Abdul Rahim nor azlin mohamed ismail Tengku Shahrul Anuar Department of Parasitology and Medical Entomology Universiti Kebangsaan Malaysia Medical Centre Department of Obstetrics and Gynaecology Universiti Kebangsaan Malaysia Medical Centre Department of Medical Laboratory Technology Faculty of Health Sciences Universiti Teknologi MARAPuncak Alam Campus

Objective: To investigate the presence of trichomoniasis among women attending the Obstetrics and Gynaecology Clinic, Universiti Kebangsaan Malaysia Medical ***: A total of 139 high vaginal swabs were taken from the subjects and sent to the laboratory in Amies gel transport media. The specimens were examined for the presence of Trichomonas vaginalis using wet mount, Giemsa staining and cultured in Diamond's medium. Sociodemographic characteristics and gynaecological complaints were obtained in private using structured questionnaire applied by one ***: The median age was 32 years, with an interquartile interval of 9.96. Most of the subjects were Malays(76.9%) and the remaining were Chinese(15.1%), Indians(2.2%)and other ethnic groups(5.8%). One hundred and thirty eight(99.3%) of the women were married and 98.6% had less than 6 children. More than half(75.5%) of the women's last child birth was less than 6 years ago. Forty seven percent of them were involved in supporting administrative work and 64.7% of the women gave a history of previous or current vaginal ***: The present study reported zero incidence rate of trichomoniasis. The low incidence rate was postulated due to all women who participated in this study were categorized into a low-risk group.

关键词： Trichomoniasis Incidence rate Wet mount Giemsa staining Culture

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Retained placenta: Do we have any option?

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World Journal of Obstetrics and Gynecology 2014年第3期3卷 124-129页

作者： Pei Shan Lim nor azlin mohamed ismail Nur Azurah Abd Ghani Nirmala Chandralega Kampan Aqmar Suraya Sulaiman Beng Kwang Ng Kah Teik Chew Abdul Kadir Abdul Karim Muhammad Abdul Jamil Mohd Yassin Department of Obstetrics and Gynecology Faculty of Medicine Universiti Kebangsaan Malaysia

Retained placenta is a known cause of post-partum haemorrhage and maternal mortality. A recent systemic review has confirmed that the incidence of retained placenta had increased all over the world, which is more common in developed countries. Failure of retroplacental myometrium contraction is the main cause of retained placenta. Maternal age greater than 35 years, grandmultipara, preterm labor, history of previous retained placenta, and caesarean section were the risk factors for retained placenta. Manual removal of the placenta has been the treatment of choice. Attempts had been made by clinician and researchers to find a safe, effective and reliable method to avoid the need for surgical intervention. The efficacy and safety of prostaglandin, nitroglycerin or acupuncture in the management of retained placenta are yet to be further evaluated. Nonetheless, till date only intraumbilical vein oxytocin has been studied extensively but with varied success. More randomized clinical trials are needed to address this issue. However, if immediate manual placenta removal service is unavailable, a trial of intra-umbilical vein oxytocin 100 IU at a totalvolume of at least 40 m L while preparing for transfer to a tertiary center or theatre may result in spontaneous expulsion of the placenta.

关键词： Retained placenta Manual removal of the placenta Intra-umbilical vein Oxytocin Prostaglandin Misoprostol Carboprost Acupuncture

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Production of High Purity Multi-Walled Carbon Nanotubes from Catalytic Decomposition of Methane

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Journal of Natural Gas Chemistry 2006年第4期15卷 266-270页

作者： Kong Bee Hong Aidawati azlin Binti ismail mohamed Ezzaham Bin Mohd Mahayuddin Abdul Rahman mohamed Sharif Hussein Sharif Zein School of Chemical Engineering Engineering CampusUniversiti Sains Malaysia14300 Nibong TebalSeberang Perai SelatanPulau PinangMalaysia

Acid-based purification process of multi-walled carbon nanotubes （MWNTs） produced via catalytic decomposition of methane with NiO/TiO2 as a catalyst is described. By combining the oxidation in air and the acid refluxes, the impurities, such as amorphous carbon, carbon nanoparticles, and the NiO/TiO2 catalyst, are eliminated. Scanning electron microscopy （SEM） and transmission electron microscopy （TEM） images confirm the removal of the impurities. The percentage of the carbon nanotubes purity was analyzed using thermal gravimetric analysis （TGA）. Using this process, 99.9 wt% purity of MWNTs was obtained.

关键词： multi-walled carbon nanotubes purification acid refluxes oxidation methane decomposition

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Beamforming techniques for massive MIMO systems in 5G:overview,classification,and trends for future research

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Frontiers of Information Technology & Electronic Engineering 2017年第6期18卷 753-772页

作者： Ehab ALI Mahamod ismail Rosdiadee norDIN nor Fadzilah ABDULAH Department of Electrical Electronic and System EngineeringUniversiti Kebangsaan Malaysia(UKM)Bangi 43600Malaysia

Massive multiple-input multiple-output(MIMO) systems combined with beamforming antenna array technologies are expected to play a key role in next-generation wireless communication systems(5G), which will be deployed in 2020 and beyond. The main objective of this review paper is to discuss the state-of-the-art research on the most favourable types of beamforming techniques that can be deployed in massive MIMO systems and to clarify the importance of beamforming techniques in massive MIMO systems for eliminating and resolving the many technical hitches that massive MIMO system implementation faces. Classifications of optimal beamforming techniques that are used in wireless communication systems are reviewed in detail to determine which techniques are more suitable for deployment in massive MIMO systems to improve system throughput and reduce intra-and inter-cell interference. To overcome the limitations in the literature, we have suggested an optimal beamforming technique that can provide the highest performance in massive MIMO systems, satisfying the requirements of next-generation wireless communication systems.

关键词： Beamforming classifications Massive MIMO Hybrid beamforming Millimetre-wave beamforming

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Primary gastroduodenal tuberculosis presenting as gastric outlet obstruction:A case report and review of literature

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World Journal of Clinical Cases 2024年第8期12卷 1536-1543页

作者： Abdihamid mohamed Ali Yahye Garad mohamed Abdirahman Ahmed Mohamud Abdulkadir nor mohamed mohamed Rage Ahmed ismail Mohamud Abdullahi Tuba Saydam Department of General Surgery Mogadishu Somali Turkey Recep Tayyip Erdogan Training and Research HospitalMogadishu 2526Somalia Department of Radiology Mogadishu Somali TurkeyTraining and Research HospitalMogadishu 2526Somalia Department of Pathology Mogadishu Somali Turkey Recep Tayyip Erdogan Training and Research HospitalMogadishu 2526Somalia

BACKGROUND Mycobacterium tuberculosis(TB)is the causative agent of TB,a chronic granulo-matous *** disease is prevalent in low-income countries,posing a significant global health *** TB is one of the three *** disease can mimic other intra-abdominal conditions,leading to delayed diagnosis owing to the absence of specific *** gastric outlet obs-truction(GOO)remains a frequent complication,its incidence has declined with the advent of proton pump inhibitors and Helicobacter pylori eradication *** TB can cause upper gastrointestinal hemorrhage,obstruction,and malignancy-like *** SUMMARY A 23-year-old male presented with recurrent epigastric pain,distension,nausea,vomiting,and weight loss,prompting a referral to a gastroenterologist *** examination revealed distorted gastric mucosa and signs of chronic ***,treatment was interrupted,possibly owing to vomiting or comorbidities such as human immunodeficiency virus infection or *** surgical intervention revealed a dilated stomach and diffuse thickening of the duodenal *** revealed gastric wall effacement with *** Primary gastric TB is rare,frequently leading to *** its rarity,suspicions should be promptly raised when encountering relevant symptoms,often requiring surgical intervention for diagnosis and treatment.

关键词： Tuberculosis Gastrointestinal tuberculosis Gastric outlet obstruction Gastroduodenal tuberculosis Case report

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Automatic Fall Detection Using Membership Based Histogram Descriptors

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Journal of Computer Science & Technology 2017年第2期32卷 356-367页

作者： mohamed Maher Ben ismail Ouiem Bchir College of Computer and Information Sciences King Saud University Riyadh 11495 KSA

t We propose a framework for automatic fall detection based on video visual feature extraction. The proposed approach relies on a membership histogram descriptor that encodes the visual properties of the video frames. This descriptor is obtained by mapping the original low-level visual features to a more discriminative descriptor using possibilistic memberships. This mapping can be summarized in two main phases. The first one consists in categorizing the low-level visual features of the video frames arid generating homogeneous clusters in an unsupervised way. The second phase uses the obtained membership degrees generated by the clustering process to compute the membership based histogram descriptor （MHD）. For the testing stage, the proposed fall detection approach categorizes unlabeled videos as ＂Fall＂ or ＂Non-Fall＂ scene using a possibilistic K-nearest neighbors classifier. The proposed approach is assessed using standard videos dataset that simulates patient fall. Also, we compare its performance with that of state-of-the-art fall detection techniques.

关键词： fall detection possibilistic approach feature extraction clustering

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Monitoring and analysing the Emirate of Dubai’s land use/land cover changes:an integrated,low-cost remote sensing approach

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International Journal of Digital Earth 2018年第11期11卷 1132-1150页

作者： Samy ismail Elmahdy mohamed Mostafa mohameda Civil and Environmental Engineering Department College of Engineering United Arab Emirates UniversityAl-AinUnited Arab Emirates Irrigation and Hydraulics Department Faculty of EngineeringCairo UniversityGizaEgypt

This study presents a modified low-cost approach,which integrates the spectral angle mapper and image difference algorithms in order to enhance classification maps for the purpose of monitoring and analysing land use/land cover change between 2000 and 2015 for the Emirate of *** approach was modified by collecting 320 training samples from QuickBird images with a spatial resolution of 0.6 m,as well as carrying out field observations,followed by the application of a 3×3 Soble filter,sieving classes,majority/minority analysis,and clump classes of the obtained classification *** accuracy assessment showed that the targeted 2000,2005,2010 and 2015 classification maps have 88.1252%,89.0699%,90.1225%and 96.0965%accuracy,*** results showed that the built-up area increased by 233.721 km^(2)(5.81%)between 2000 and 2005 and continues to increase even up and till the present *** assessment of changes in the periods 2000–2005 and 2010–2015 confirmed that net vegetation area losses were more pronounced from 2000 to 2005 than from 2010 to 2015,dropping from 47,618 to 40,820 km^(2),*** study is aimed to assist urban planners and decision-makers,as well as research institutes.

关键词： Dubai change detection image difference SAM algorithm

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C3-Modules

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Algebra Colloquium 2015年第4期22卷 655-670页

作者： ismail Amin Yasser Ibrahim mohamed Yousif Department of Mathematics Faculty of Science Cairo University Giza Egypt Department of Mathematics The Ohio State University Lima Ohio 45804 USA

One of the continuity conditions identified by Utumi on self-injective rings is the C3-condition, where a module M is called a C3-module if whenever A and B are direct summands of M and A A B = 0, then A B is a summand of M. In addition to injective and direct-injective modules, the class of C3-modules includes the semisimple, continuous, indecomposable and regular modules. Indeed, every commutative ring is a C3-ring. In this paper we provide a general and unified treatment of the above mentioned classes of modules in terms of the C3-condition, and establish new characterizations of several well known classes of rings.

关键词： injective and quasi-injective modules C2-modules and C3-modules

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Optimized system for combined production of electricity/green hydrogen for multiple energy pathways:a case study of Egypt

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Clean Energy 2024年第4期8卷 219-236页

作者： Reda Ragab mohamed HamdiHafez A.El Salmawy mohamed A.ismail Mechanical Power Engineering Department Zagazig UniversityZagazig 44519Egypt Mechanical Engineering Department College of EngineeringKing Faisal UniversityAl-Ahsa 31982Saudi Arabia

By optimal sizing of a wind/photovoltaic hybrid renewable-energy(RE)system,trimming the surplus capacity to reduce the fluctuations in the electricity supplied to the grid,and using it to produce green hydrogen through electrolysis,a stable output with maximum possible capacity factor(CF)is generated to maintain the electricity grid ***,the trimmed energy is used in a secondary conversion path that minimizes the weighted average cost of the energy generated from the entire *** surplus power-to-gas conversion allows the use of green hydrogen to produce electricity,methanol,or ammonia subject to the resource availability,site characteristics,and financial *** on robust site selection criteria,the best performance is obtained at two sites:Ras Ghareb and Minya,achieving the lowest energy cost with some variance in their *** the Ras Ghareb site,the optimally sized RE plant provided the grid with a quasi-steady capacity of 423 MW with a CF of 80.04%and was capable of injecting 2965.8648 GWh throughout the year with the lowest cost of 2.4355¢/kWh.A surplus of 3.9%of the total energy produced from the plant was directed to produce 1922-ton H_(2)/year,achieving the lowest cost of hydrogen production of$1.9745/kg H_(2).For the other selected site,Minya,the clipped energy is used to produce 3330.47-ton H_(2)/year with an optimized lowest cost of$3.5268/kg H_(2).The difference in hydrogen costs was attributed to the number of full operating hours of the electrolyser in both *** cost is mainly affected by the electricity price and the electrolyser *** both tending to decrease,future forecasts show hydrogen cost reductions.

关键词： hybrid renewable-energy system(HRES) green hydrogen electrolysis power-to-gas methanol ammonia

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Super-Resolution Based on Curvelet Transform and Sparse Representation

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Computer Systems Science & Engineering 2023年第4期45卷 167-181页

作者： Israa ismail mohamed Meselhy Eltoukhy Ghada Eltaweel Department of Computer Science Faculty of Computers and InformaticsSuez Canal UniversityIsmailia51422Egypt Department of Information Technology University of JeddahCollege of Computing and Information Technology at KhulaisJeddahSaudi Arabia

Super-resolution techniques are used to reconstruct an image with a high resolution from one or more low-resolution image(s).In this paper,we proposed a single image super-resolution *** uses the nonlocal mean filter as a prior step to produce a denoised *** proposed algorithm is based on curvelet *** converts the denoised image into low and high frequencies(sub-bands).Then we applied a multi-dimensional interpolation called Lancozos interpolation over both *** parallel,we applied sparse representation with over complete dictionary for the denoised *** proposed algorithm then combines the dictionary learning in the sparse representation and the interpolated sub-bands using inverse curvelet transform to have an image with a higher *** experimental results of the proposed super-resolution algorithm show superior performance and obviously better-recovering images with enhanced *** comparison study shows that the proposed super-resolution algorithm outperforms the *** mean absolute error is 0.021±0.008 and the structural similarity index measure is 0.89±0.08.

关键词： Super-resolution Curvelet transform non-local means filter lancozos interpolation sparse representation

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