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Kamal Fouad Abdellatif,Yehia Abdallah Khidr,Yasser Mohammad El-Mansy,Mohammad Mohammad El-Lawendey,Yasser Abdelraouf Soliman 한국작물학회 2012 Journal of crop science and biotechnology Vol.15 No.2
Twenty-eight Egyptian cotton (Gossypium barbadense L.) genotypes (varieties and hybrids) were used for analysis of genetic diversity using DNA based markers (ISSR, SSR, and EST) and to study varietal development of cotton. The ISSR markers gave the highest percentage of polymorphic bands as well as polymorphic information content compared with the other molecular markers (i.e. EST and SSR markers). Using clustering analysis, no general clustering according to the pedigree history of the genotypes was observed. Using principal coordinate analysis (PCOORDA), cotton genotypes were separated by the first three principal coordinates (PC1, PC2, and PC3) accounting for 11.5, 8.6, and 7.2% of the total genetic variance, respectively. The cotton genotypes were distributed into three parts based on the first PC, each part containing a group of varieties having a common ancestor. ‘Giza 12’ variety was the common ancestor for the varieties included in the first part and ‘Ashmouni’ variety was the common ancestor for the varieties included in the second part, while both ‘Sakha 3’ and ‘Sakha 4’ varieties were common ancestors for the varieties included in the third part. The results of the PCOORDA also showed better resolution of the genetic diversity than cluster analysis especially in the illustration of the varietal development of cotton. That means that principal coordinate analysis can be strongly used either alone or in combination with cluster analysis to discuss both genetic diversity and varietal development in the cotton genotypes.
( Mohammad Kamal Abdelnasser ),( Mohamed Eslam Elsherif ),( Hatem Bakr ),( Mohamed Mahran ),( Moustafa H. M. Othman ),( Yaser Khalifa ) 대한슬관절학회 2019 대한슬관절학회지 Vol.31 No.1
Purpose: Outcomes following total knee arthroplasty (TKA), whether clinical, radiological or survival analysis, have been well-studied. Still, there are some concerns about patient satisfaction with the outcome of the surgery and factors that might contribute to a suboptimal result. This study aims to determine if there is correlation between primary TKA malalignment and early patient-reported outcome measures (PROMs). Materials and methods: Sixty patients, who had primary TKA and a minimum of 2 years of follow up, were recruited for a detailed clinical and radiological examination. Knee alignment was measured in the coronal, sagittal and axial planes. Normal and the outlier measurements of the patients’ knees were defined and the clinical results (PROMs) compared to see if there was a statistically significant difference. Results: Correlation between postoperative limb malalignment in the coronal and the sagittal planes and PROMs was not significant. Conversely, there was significant negative correlation between all types of malrotation and PROMs. Conclusions: Although malalignment has been linked to inferior outcome and implant survival, our results showed that coronal and sagittal limb malalignment has no significant effect on early PROMs. However, all types of component rotational malalignment significantly worsen early PROMs.
Mohammad M. Kamal,Sharmin Akter,Chin‑Nu Lin,Sami Nazzal 대한약학회 2020 Archives of Pharmacal Research Vol.43 No.4
Sulforaphane is an isothiocyanate compound thathas been derived from cruciferous vegetables. It was shownin numerous studies to be active against multiple cancertypes including pancreatic, prostate, breast, lung, cervical,and colorectal cancers. Sulforaphane exerts its therapeuticsaction by a variety of mechanisms, such as by detoxifyingcarcinogens and oxidants through blockage of phase Imetabolic enzymes, and by arresting cell cycle in the G2/Mand G1 phase to inhibit cell proliferation. The most strikingobservation was the ability of sulforaphane to potentiatethe activity of several classes of anticancer agents includingpaclitaxel, docetaxel, and gemcitabine through additiveand synergistic effects. Although a good number of reviewshave reported on the mechanisms by which sulforaphaneexerts its anticancer activity, a comprehensive review on thesynergistic effect of sulforaphane and its delivery strategiesis lacking. Therefore, the aim of the current review was toprovide a summary of the studies that have been reportedon the activity enhancement effect of sulforaphane in combinationwith other anticancer therapies. Also provided is a summary of the strategies that have been developed for thedelivery of sulforaphane.
Abdellatif, Kamal Fouad,Khidr, Yehia Abdallah,El-Mansy, Yasser Mohammad,El-Lawendey, Mohammad Mohammad,Soliman, Yasser Abdelraouf 한국작물학회 2012 Journal of crop science and biotechnology Vol.15 No.2
Twenty-eight Egyptian cotton (Gossypium barbadense L.) genotypes (varieties and hybrids) were used for analysis of genetic diversity using DNA based markers (ISSR, SSR, and EST) and to study varietal development of cotton. The ISSR markers gave the highest percentage of polymorphic bands as well as polymorphic information content compared with the other molecular markers (i.e. EST and SSR markers). Using clustering analysis, no general clustering according to the pedigree history of the genotypes was observed. Using principal coordinate analysis (PCOORDA), cotton genotypes were separated by the first three principal coordinates (PC1, PC2, and PC3) accounting for 11.5, 8.6, and 7.2% of the total genetic variance, respectively. The cotton genotypes were distributed into three parts based on the first PC, each part containing a group of varieties having a common ancestor. 'Giza 12' variety was the common ancestor for the varieties included in the first part and 'Ashmouni' variety was the common ancestor for the varieties included in the second part, while both 'Sakha 3' and 'Sakha 4' varieties were common ancestors for the varieties included in the third part. The results of the PCOORDA also showed better resolution of the genetic diversity than cluster analysis especially in the illustration of the varietal development of cotton. That means that principal coordinate analysis can be strongly used either alone or in combination with cluster analysis to discuss both genetic diversity and varietal development in the cotton genotypes.
Novel Method for Stripping of Molybdenum(VI) after Its Extraction with Cyanex 301
Saberyan, Kamal,Maragheh, Mohammad Ghannadi,Ganjali, Mohammad Reza Korean Chemical Society 2004 Bulletin of the Korean Chemical Society Vol.25 No.4
Hydrofluoric acid has been used as a novel stripping agent for molybdenum(VI) after its extraction with Cyanex 301. In the extraction step, the effects of parameters such as type and initial concentration of acid, type of diluent, extractant concentration, metal concentration and temperature have been studied. In the stripping step, the effects of various stripping agents on stripping efficiency have been investigated. Hydrofluoric acid has been chosen as an effective stripping agent, and the effects of concentration of hydrofluoric acid, stripping time, volume of hydrofluoric acid and the number of stages of stripping have been studied. Molybdenum(VI) has been effectively separated from a large number of elements in binary mixtures, with a very high tolerance limit. Finally, the optimized method has been extended for the analysis of Mo(VI) in spent molybdenum catalysts.
Extraction and Characterization of Pectin from Citrus sinensis Peel
Kamal Md. Mostafa,Kumar Jibon,Mamun Md. Akter Hamid,Ahmed Md. Nazim Uddin,Shishir Mohammad Rezaul Islamd,Mondal Shakti Chandra 한국농업기계학회 2021 바이오시스템공학 Vol.46 No.1
Purpose The industrial application of pectin is increasing although its production was far away from the demand, which exerts extra pressure on the existing pectin sources. The present study was focused on the extraction and quality evaluation of pectin from Citrus sinensis (sweet orange) peel as a potential pectin source. Methodology Pectin was extracted from sweet orange peel powder in a shaking water bath at three different extraction conditions, viz. temperatures (65, 75, 85, and 95 °C), pH (1.0, 1.5, 2, and 2.5), and time (45, 60, 75, and 90 min). The extracted pectin was dried to constant weight in a cabinet dryer at 50 °C and packed in the high-density polyethylene pouch and stored at 4 °C until used for quality analysis. After single factor experiments, optimization of process variables was done statistically using the response surface methodology (RSM), where the experimental data were fitted to a second-order polynomial model. Results The pectin yield was found to vary between 12.52 and 22.45% and the best extraction condition was recorded to be higher in yield at the temperature of 95 °C (21.53%), pH of 1.5 (21.28%), and extraction time of 90 min (22.45%) from the single factor optimization. The quality parameters of pectin, e.g., equivalent weight (1744.66~1899.33 g), methoxyl group content (5.02~5.64%), and degree of esterification (73.26~77.56%), were found to be in satisfactory levels. On the contrary, anhydrouronic acid content (38.47~41.30%) was very low compared to the existing data for various pectin sources. The developed polynomial model has effectively explained the data variation and adequately described the actual correlation between the independent and dependent variables. Results from both single factor experiments and RSM revealed that extraction temperature, pH, and time had a significant influence on the yield and quality of the extracted pectin. Fromthe optimization study, the optimum condition was found as the temperature of 94.13 °C, pH of 1.45, and time of 114.70 min, which yielded 23.64% pectin. Conclusion Conclusively, extraction of pectin from sweet orange peel could be of great interest for application in the food and pharmaceutical industries.
Smart Grid Cooperative Communication with Smart Relay
Mohammad Helal Uddin Ahmed,Md. Golam Rabiul Alam,Rossi Kamal,홍충선,이성원 한국통신학회 2012 Journal of communications and networks Vol.14 No.6
Many studies have investigated the smart grid architecture and communication models in the past few years. However,the communication model and architecture for a smart grid still remain unclear. Today’s electric power distribution is very complex and maladapted because of the lack of efficient and costeffective energy generation, distribution, and consumption management systems. A wireless smart grid communication system can play an important role in achieving these goals. In this paper, we describe a smart grid communication architecture in which we merge customers and distributors into a single domain. In the proposed architecture, all the home area networks, neighborhood area networks,and local electrical equipment form a local wireless mesh network (LWMN). Each device or meter can act as a source, router,or relay. The data generated in any node (device/meter) reaches the data collector via other nodes. The data collector transmits this data via the access point of a wide area network (WAN). Finally,data is transferred to the service provider or to the control center of the smart grid. We propose a wireless cooperative communication model for the LWMN.We deploy a limited number of smart relays to improve the performance of the network. A novel relay selection mechanism is also proposed to reduce the relay selection overhead. Simulation results show that our cooperative smart grid (coopSG)communication model improves the end-to-end packet delivery latency,throughput, and energy efficiency over both the Wang et al. and Niyato et al. models.