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7篇 您的检索式:作者名="Essa ALI"
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1Nitrogen(N) metabolism related enzyme activities,cell uitrastructure and nutrient contents as affected by N level and barley genotype显示文摘Development of the new crop cultivars with high yield under low nitrogen(N) input is a fundamental approach to enhance agricultural sustainability,which is dependent on the exploitation of the elite germplasm.In the present study,four barley genotypes(two Tibetan wild and two cultivated),differing in N use efficiency(NUE),were characterized for their physiological and biochemical responses to different N levels.Higher N levels significantly increased the contents of other essential nutrients(P,K,Ca,Fe,Cu and Mn),and the increase was more obvious for the N-efficient genotypes(ZD9 and XZ149).The observation of ultrastructure showed that chloroplast structure was severely damaged under low nitrogen,and the two high N efficient genotypes were relatively less affected.The activities of the five N metabolism related enzymes,i.e.,nitrate reductase(NR),glutamine synthetase(GS),nitrite reductase(NiR),glutamate synthase(GOGAT) and glutamate dehydrogenase(GDH) all showed the substantial increase with the increased N level in the culture medium.However the increased extent differed among the four genotypes,with the two N efficient genotypes showing more increase in comparison with the other two genotypes with relative N inefficiency(HXRL and XZ56).The current findings showed that a huge difference exists in low N tolerance among barley genotypes,and improvement of some physiological traits(such as enzymes) could be helpful for increasing N utilization efficiency.Jawad Munawar Shah Syed Asad Hussain Bukhari ZENG Jian-bin QUAN Xiao-yan Essa Ali Noor Muhammad ZHANG Guo-ping 2017Journal of Integrative Agriculture2017,16,1:4
2茉莉酸对油菜(Brassica napus L.)受镉毒害的缓解作用(英文)显示文摘目的:本研究目的在于了解:(1)喷施外源茉莉酸对受到镉胁迫油菜的作用;(2)是否茉莉酸能够通过增强气体交换,从而保护受到氧化胁迫的地上部分组织的叶绿体,进而通过减少镉的吸收来维持离子平衡;(3)是否通过喷施茉莉酸来对具有减缓镉毒害效应的抗氧化酶的活性进行调节。创新点:茉莉酸能够调节响应胁迫的抗氧化酶的活性,从而通过保护叶绿体免受活性氧(ROS)伤害而提高光合产物的能力,最大限度地缓解油菜植株受到的镉毒害。方法:(1)叶片气体交换;(2)叶片光合色素分析;(3)丙二醛与抗氧化酶活性分析;(4)营养成分分析;(5)透射电镜亚细胞水平观察。结论:茉莉酸对于植物受镉毒害的缓解作用的机理在于减少叶片中镉的积累,从而减轻氧化胁迫过程中产生的ROS对于膜系统的损害程度。Essa ALI Nazim HUSSAIN Imran Haider SHAMSI Zahra JABEEN Muzammil Hussain SIDDIQUI Li-xi JIANG 2018Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2018,19,2:2
3Oncogenic activation of MAPKinase by BRAF pseudo gene in thyroid tumors 显示文摘Zou M J Essa YB Ali S 2009Neoplasia2009,11,4:1
4Clinical case seminar: metastatic follicular thyroid carcinoma arising from congenital goiter as a result of a novel splice donor site mutation in the thyroglobulin gene 显示文摘Ali SA Essa YB Zou M J 2006J Clin Endoerinol Metab2006,91,3:1
5High prevalence of chronic viral hepatitis B and C in Minnesota Somalis contributes to rising hepatocellular carcinoma incidence显示文摘BACKGROUND Chronic hepatitis B virus(HBV)and hepatitis C virus(HCV)infections are known risk factors for liver disease,cirrhosis and hepatocellular carcinoma(HCC).There is substantial global variation in HBV and HCV prevalence resulting in variations in cirrhosis and HCC.We previously reported high prevalence of HBV and HCV infections in Somali immigrants seen at an academic medical center in Minnesota.AIM To determine the prevalence of chronic viral hepatitis in Somali immigrants in Minnesota through a community-based screening program.METHODS We conducted a prospective community-based participatory research study in the Somali community in Minnesota in partnership with community advisory boards,community clinics and local mosques between November 2010 and December 2015(data was analyzed in 2020).Serum was tested for hepatitis B surface antigen,hepatitis B core antibody,hepatitis B surface antibody and anti-HCV antibody.RESULTS Of 779 participants,15.4%tested positive for chronic HBV infection,50.2%for prior exposure to HBV and 7.6%for chronic HCV infection.Calculated age-adjusted frequencies in males and females for chronic HBV were 12.5%and 11.6%;for prior exposure to HBV were 44.8%and 41.3%;and for chronic HCV were 6.7%and 5.7%,respectively.Seven participants developed incident HCC during follow up.CONCLUSION Chronic HBV and HCV are major risk factors for liver disease and HCC among Somali immigrants,with prevalence of both infections substantially higher than in the general United States population.Community-based screening is essential for identifying and providing health education and linkage to care for diagnosed patients.Essa A Mohamed Nasra H Giama Abubaker O Abdalla Hassan M Shaleh Abdul M Oseini Hamdi A Ali Fowsiyo Ahmed Wesam Taha Hager Ahmed Mohammed Jessica Cvinar Ibrahim A Waaeys Hawa Ali Loretta K Allotey Abdiwahab O Ali Safra A Mohamed William S Harmsen Eimad M Ahmmad Numra A Bajwa Mohamud D Afgarshe Abdirashid M Shire Joyce E Balls-Berry Lewis R Roberts 2022World Journal of Gastroenterology2022,28,35:0
6氮肥种类与施量对油菜种子生育酚的影响(英文)显示文摘研究目的:生育酚是菜籽重要的品质指标,氮肥是影响作物生物学与籽粒产量最常用的肥料。这项研究旨在搞清楚氮肥种类与施量对油菜种子生育酚含量与组分的确切影响,以及这种影响在基因型之间的差异。创新要点:这篇论文研究了不同的氮肥种类(硝态氮与铵态氮)与低、中、高施用量对种子生育酚总量与组分的影响,并分析了其中的原因,为通过合理的氮肥施用方案配置,以达到最理想的菜籽生育酚含量或组分提供依据。研究方法:采用盆钵实验控制氮肥施量与流失的精准方法,五种基因型、二种氮肥种类、三档施量水平,三重复控制误差;尝试用气相色谱法检测菜籽生育酚含量的新方法。重要结论:尿素比硝酸氨更有利于菜籽总生育酚、阿尔法生育酚及伽马生育酚的有效形成;提高氮肥施量对于菜籽形成高含量的总生育酚与伽马生育酚非常有效,但对提高菜籽阿尔法生育酚含量的效果却不太明显。Nazim HUSSAIN Hui LI Yu-xiao JIANG Zahra JABEEN Imran Haider SHAMSI Essa ALI Li-xi JIANG 2014Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2014,15,2:0
7A Transfer Learning Based Approach for COVID-19 Detection Using Inception-v4 Model显示文摘Coronavirus(COVID-19 or SARS-CoV-2)is a novel viral infection that started in December 2019 and has erupted rapidly in more than 150 countries.The rapid spread of COVID-19 has caused a global health emergency and resulted in governments imposing lock-downs to stop its transmission.There is a signifi-cant increase in the number of patients infected,resulting in a lack of test resources and kits in most countries.To overcome this panicked state of affairs,researchers are looking forward to some effective solutions to overcome this situa-tion:one of the most common and effective methods is to examine the X-radiation(X-rays)and computed tomography(CT)images for detection of Covid-19.How-ever,this method burdens the radiologist to examine each report.Therefore,to reduce the burden on the radiologist,an effective,robust and reliable detection system has been developed,which may assist the radiologist and medical specia-list in effective detecting of COVID.We proposed a deep learning approach that uses readily available chest radio-graphs(chest X-rays)to diagnose COVID-19 cases.The proposed approach applied transfer learning to the Deep Convolutional Neural Network(DCNN)model,Inception-v4,for the automatic detection of COVID-19 infection from chest X-rays images.The dataset used in this study contains 1504 chest X-ray images,504 images of COVID-19 infection,and 1000 normal images obtained from publicly available medical repositories.The results showed that the proposed approach detected COVID-19 infection with an overall accuracy of 99.63%.Ali Alqahtani Shumaila Akram Muhammad Ramzan Fouzia Nawaz Hikmat Ullah Khan Essa Alhashlan Samar MAlqhtani Areeba Waris Zain Ali 2023Intelligent Automation & Soft Computing2023,,2:0
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