检索结果-南通市图书馆

Chaplygin gas inspired warm inflation and swampland conjectures through various scalar potentials

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第9期48卷 254-273页

作者： Abdul jawad Nadeem Azhar Shama Sadiq Shamaila Rani Institute for Theoretical Physics and Cosmology Zhejiang University of TechnologyHangzhou 310023China Department of Mathematics COMSATS University IslamabadLahore CampusLahore-54000Pakistan Department of Mathematics National University of Modern Languages(NUML)Lahore CampusLahore-54000Pakistan

In this paper,we analyze inflationary parameters and swampland conjectures in the presence of a scalar field and Chaplygin *** examine inflationary parameters,such as slow-roll parameters,scalar and tensor power spectra,spectral index,and tensor-to-scalar ratio,in the presence of a scalar field and Chaplygin gas *** also discuss recently proposed swampland *** assume that the inflationary expansion is driven by a standard scalar field with a decay ratioΓthat has a generic power-law dependence on the scalar field 0 and that the temperature of the thermal bath T is given byΓ(φ,T)=C_(φ)T^(a)/φ^(a-1),where C_(φ)is a dimensionless parameter and a is the inflation decay *** a scenario where our model operates within a robust dissipative environment(R>>1),we analyze both fundamental and perturbative dynamics to extract key inflationary *** include the scalar power spectrum P_(R),dissipative ratio R,scalar spectral index n_(s),tensor-to-scalar ratio r,running of the scalar spectral index dn_s/dlnk,and generalized ratio of the swampland de-Sitter conjecture T'V/V'T for three different potentials.

关键词： warm inflation swampland conjectures scalar potentials inflationary parameters

Prevalence of post-traumatic stress disorder and depressive symptoms among civilians residing in armed conflict-affected regions:a systematic review and meta-analysis

在线全文

学校读者我要写书评

暂无评论

General Psychiatry 2024年第3期37卷 324-334页

作者： Syed Hassan Ahmed Aabia Zakai Maha Zahi muhammad Youshay jawad Rui Fu Michael Chaiton Dow University of Health Sciences KarachiPakistan Department of Psychiatry and Behavioral Health Penn State College of MedicineHersheyPennsylvaniaUSA Dalla Lana School of Public Health University of TorontoTorontoOntarioCanada institute of Mental Health Policy Research The Center of Addiction and Mental HealthTorontoOntarioCanada

Background Globally,populations afflicted by armed conflict are known to have high rates of mental health *** This meta-analysis aims to estimate the prevalence of post-traumatic stress disorder(PTSD)and depressive symptoms among civilians residing in armed conflictaffected *** This meta-analysis was conducted in accordance with the Preferred Reporting Items forSystematic Reviews and Meta-Analyses.A literature search employing MEDLINE(R),Embase Classic+Embase,APA PsyclNFO,Ovid Healthstar,Journal@Ovid Full Text,Cochrane,PTSDpubs and CINAHL was conducted from inception until 19 March 2024 to identify relevant *** assessment was performed using the Joanna Briggs Institute Critical Appraisal Checklist for Prevalence Studies,and a Comprehensive Meta-Analysiswas usedto conduct the statistical *** The search yielded 38595 articles,of which 57 were considered eligible for *** included studies comprised data from 64596 *** estimated a prevalence of 23.70%(95%CI 19.50%to28.40%)forPTSD symptomsand 25.60%(95%Cl 20.70%to 31.10%)for depressive features among war-afflicted *** subgroup analysis based on time since the war and the country's economic status revealed the highest prevalence for both PTSD and depressive symptoms was present during the years of war and in low/*** The results of this study provide conclusive evidence of the detrimental impacts of armed conflict on mental health ***,it is crucial to emphasise the significance of both physical and mental health in the aftermath of war and take appropriate humanistic measures to overcome challenges in the management of psychiatric illnesses.

关键词： analysis stress armed

Genome wide identification and characterization of light-harvesting Chloro a/b binding(LHC)genes reveals their potential role in enhancing drought tolerance in Gossypium hirsutum

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Cotton Research 2021年第2期4卷 147-159页

作者： MEHARI Teame Gereziher XU Yanchao MAGWANGA Richard Odongo UMER muhammad jawad KIRUNGU Joy Nyangasi CAI Xiaoyan HOU Yuqing WANG Yuhong YU Shuxun WANG Kunbo ZHOU Zhongli LIU Fang State Key Laboratory of Cotton Biology/Institute of Cotton Research Chinese Academy of Agricultural Sciences(ICRCAAS)Anyang455000HenanChina Ethiopian Institute of Agricultural Research Mekhoni Agricultural Research CenterP.O.Box 47MekhoniTigrayEthiopia School of Biological and Physical Sciences(SBPS) Main CampusJaramogi Oginga Odinga University of Science and Technology(JOOUST)Main CampusP.O.Box 210-40601BondoKenya School of Agricultural Sciences Zhengzhou UniversityZhengzhouHenan450001China

Background: Cotton is an important commercial crop for being a valuable source of natural *** production has undergone a sharp decline because of abiotic stresses,*** is one of the major abiotic stress causing significant yield losses in ***,plants have evolved self-defense mechanisms to cope abiotic factors like drought,salt,cold,*** evolution of stress responsive transcription factors such as the trihelix,a nodule-inception-like protein(NLP),and the late embryogenesis abundant proteins have shown positive response in the resistance improvement to several abiotic ***: Genome wide identification and characterization of the effects of Light-Harvesting Chloro a/b binding(LHC)genes were carried out in cotton under drought stress conditions.A hundred and nine proteins encoded by the LHC genes were found in the cotton genome,with 55,27,and 27 genes found to be distributed in Gossypium hirsutum,***,and ***,*** proteins encoded by the genes were unevenly distributed on various *** Ka/Ks(Non-synonymous substitution rate/Synonymous substitution rate)values were less than one,an indication of negative selection of the gene *** expressions of genes showed that majority of the genes are being highly upregulated in the roots as compared with leaves and stem *** genes were found to be highly expressed in MR-85,a relative drought tolerant ***: The results provide proofs of the possible role of the LHC genes in improving drought stress tolerance,and can be explored by cotton breeders in releasing a more drought tolerant cotton varieties.

关键词： Cotton G hirsutum LHC genes Gene expression Drought tolerance

在线全文

学校读者我要写书评

暂无评论

籽瓜、黏籽和普通西瓜的果实代谢组比较

中国农业科学 2021年第19期54卷 4179-4195页

作者：袁平丽何楠赵胜杰路绪强朱红菊刁卫楠龚成胜 muhammad jawad Umer 刘文革中国农业科学院郑州果树研究所/河南省果树瓜类生物学重点实验室

【目的】西瓜是一种广受欢迎的夏季水果,籽用西瓜(籽瓜)、黏籽西瓜和普通西瓜是3种重要的栽培类型,但对其果实中代谢物全面鉴定的研究很少,比较这3种西瓜果实的代谢组学差异,为明确驯化改良对不同类型西瓜代谢组的影响提供新见解。【方... 详细信息

【目的】西瓜是一种广受欢迎的夏季水果,籽用西瓜(籽瓜)、黏籽西瓜和普通西瓜是3种重要的栽培类型,但对其果实中代谢物全面鉴定的研究很少,比较这3种西瓜果实的代谢组学差异,为明确驯化改良对不同类型西瓜代谢组的影响提供新见解。【方法】试验以5份籽用西瓜、5份黏籽西瓜和6份普通西瓜为材料,对成熟期果肉进行广泛靶向代谢组学检测,采用SIMCA-P、MetaboAnalyst 5.0、Origin等软件对代谢组数据进行分析。【结果】LC-MS分析共检测到323种代谢物,包括51种氨基酸及其衍生物、21种核苷酸及其衍生物、14种碳水化合物、32种有机酸、52种脂质、36种类黄酮、32种羟基肉桂酰衍生物等。PCA和聚类分析显示,籽用西瓜和黏籽西瓜的代谢组学轮廓差异较小,籽用西瓜的代谢组轮廓介于黏籽西瓜和普通西瓜之间。对分类贡献率较大的代谢物是蔗糖、柠檬酸、L-谷氨酸、L-苏氨酸、葫芦素类、香草酸糖苷异构体、脂质类等。聚类热图分析显示黏籽西瓜中特有的代谢物是葫芦素及其衍生物等,籽用西瓜中的绿原酸、LysoPE脂质类等化合物含量较高,普通西瓜中的糖类、精氨酸、阿魏酸及C18-2和C18-3不饱和脂肪酸等物质含量较高。比较分析共鉴定出156种差异代谢物,籽用西瓜与黏籽西瓜的主要差异代谢物有对香豆醛、阿魏酸、肉桂酸、蔗糖、葫芦素D O-葡萄糖苷、葫芦素E异构体、牡荆素、松柏醇等。籽用西瓜与普通西瓜的主要差异代谢物有脂质类、类黄酮类、有机酸类和糖类等。随着作物进化的程度增加,营养类代谢物质含量增加,抗性相关的代谢物质含量减少。【结论】籽用西瓜和黏籽西瓜的果实代谢组差异比籽用西瓜和普通西瓜的差异小,籽用西瓜的代谢轮廓介于黏籽西瓜和普通西瓜之间。除了表型和基因组差异外,代谢组差异也可以作为区分品种的重要依据。本研究首次在代谢组学水平比较了3种类型西瓜果实的差异,对深入理解西瓜种质资源,培育保健型西瓜新品种有重要的指导意义。

关键词：黏籽西瓜籽用西瓜普通西瓜代谢组学差异代谢物驯化改良

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

基于协作中继LTE-A系统性能优化研究

基于协作中继LTE-A系统性能优化研究

作者：贾瓦德（jawad muhammad）北京理工大学

学位级别：硕士

近年来无线通信取得了飞速的发展。随着LTE的出现,它取得了前所未有的突破性进展。LTE-A在为LTE所面临的很多问题提供了解决办法的同时,还面临着更加巨大的挑战:必须满足现代通信高速率、高质量和高吞吐量的要求。LTE-A引入了Relays、...

近年来无线通信取得了飞速的发展。随着LTE的出现,它取得了前所未有的突破性进展。LTE-A在为LTE所面临的很多问题提供了解决办法的同时,还面临着更加巨大的挑战:必须满足现代通信高速率、高质量和高吞吐量的要求。LTE-A引入了Relays、载波聚合和MIMO等关键功能来实现高效率的无线通信系统。本课题旨在研究Relays及其DF协议,并且提出一个更加高级的E-DF协议。我们将使用Cooperative Relays来获取一个更好的DF协议。E-DF协议的目的是为了改善其多样性和获取更高的数据传输速率。本课题使用半解析法和模拟法来研究E-DF误码率及其应用场合。

关键词：

Recent advances in the diagnosis of drug-induced liver injury

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

World Journal of Hepatology 2024年第2期16卷 186-192页

作者： Taqwa Ahmed jawad Ahmad Department of Medicine Icahn School of Medicine at Mount SinaiNew YorkNY 10029United States Department of Recanati-Miller Transplantation Institute Icahn School of Medicine at Mount SinaiNew YorkNY 10029United States

Drug-induced liver injury(DILI)is a major problem in the United States,commonly leading to hospital *** DILI is difficult as it is a diagnosis of exclusion requiring a temporal relationship between drug exposure and liver injury and a thorough work up for other *** addition,DILI has a very variable clinical and histologic presentation that can mimic many different etiologies of liver *** scoring systems can assess the probability that a drug caused the liver injury but liver biopsy findings are not part of the criteria used in these *** review will address some of the recent updates to the scoring systems and the role of liver biopsy in the diagnosis of DILI.

关键词： Drug induced liver injury Liver biopsy Diagnosis RUCAM RECAM

Classifying Modulations in Communication Intelligence Using Deep Learning Networks

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Systems Science and Information 2024年第3期12卷 379-392页

作者： Yahya BENREMDANE Said JAMAL Oumaima TAHERI jawad LAKZIZ Said OUASKIT Department of Physics Faculty of Science Ben M'sikUniversity HassanⅡCasablanca 20100Morocco

The present research employs artificial intelligence to come up with an automatic solution for the modulation's classification of various radio signal *** a result,the work we performed involved selecting the database required for supervised deep learning,evaluating the performance of current techniques on unprocessed communication signals,and suggesting a deep learning networkbased method that would enable the classification of modulation types with the best possible ratio between computation time and *** started by examining the automatic classification models that are currently in *** light of the difficulty of forecasting in low Signal Noise Ratio(SNR)situations,we suggested an ensemble learning strategy based on adjusted Res Net and Transformer Neural Network,which is effective at extracting multi-scale features from the raw I/Q sequence ***,we produced an architecture that is simple to use and apply to communication *** architecture of this solution is strong and optimal,enabling it to determine the type of modulation with up to 95%accuracy automatically.

关键词： automatic modulation classification artificial intelligence deep learning radio frequency electronicwarfare

Linkages among leaf nutrient concentration,resorption efficiency, litter decomposition and their stoichiometry to canopy nitrogen addition and understory removal in subtropical plantation

在线全文

学校读者我要写书评

暂无评论

Ecological Processes 2024年第2期13卷 90-102页

作者： jawad Ali Shah Wenfei Liu Saif Ullah Honglang Duan Fangfang Shen Yingchun Liao Guomin Huang Jianping Wu Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Institute of Biodiversity School of Ecology and Environmental Science Yunnan University Laboratory of Soil Ecology and Health in Universities of Yunnan Province Yunnan University Jiangxi Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology Nanchang Institute of Technology Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province Institute for Forest Resources and Environment of Guizhou College of ForestryGuizhou University

Background The prevalence of understory removal and anthropogenic nitrogen(N) deposition has significantly altered the ecological processes of forest ecosystems at both regional and global scales. However, it remains a pressing challenge to understand how N deposition and understory removal affect leaf nutrient dynamics, nutrient resorption, litter decomposition, and their linkages for better managing forest ecosystems under nutrient imbalances induced by N enrichment. To address this research gap, a field manipulation experiment was carried out in a subtropical Cunninghamia lanceolata plantation with four treatments including: control(CK), canopy N addition(CN), understory removal(UR), and canopy N addition plus understory removal(CN × UR). Green and senesced leaf N and phosphorus(P) concentrations, N and P resorption efficiencies, litter decomposition, and their correlations were *** The results revealed that the average N concentrations of green early and late leaves in UR were increased by 6.61 and 18.89% compared to CK. UR had the highest whereas CN had the lowest P concentrations in green leaves across the two sampling seasons. Following this, UR, leaf type, season, and their interactions significantly affected leaf N, P, and N:P(P < 0.05). The highest leaf N resorption(32.68%) and P resorption efficiencies(63.96%) were recorded in UR. Litter decomposition was significantly retarded in UR(P < 0.01) relative to CN. The regression analysis demonstrated that leaf nutrient status was significantly interconnected with leaf nutrient resorption efficiencies. In addition, leaf nutrient dynamics were strongly correlated with litter nutrients, indicating that both were *** These findings can deepen our knowledge of biogeochemical cycling and reveal contrasting nutrientacquisition strategies on N and P limitation in response to UR and CN. Considering the P limitation, it is important to note that P was resorbed more efficiently, illustrating a

关键词： Nutrient resorption Nitrogen deposition Litter decomposition Stoichiometry Understory removal Subtropical plantation

黏籽西瓜、籽瓜和普通西瓜的植物学性状比较分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国瓜菜 2021年第9期34卷 15-25页

作者：袁平丽龚成胜何楠刁卫楠 muhammad jawad Umer 朱红菊杨东东 muhammad Anees 路绪强 Kaseb M O 赵胜杰刘文革河南省南亚瓜果学国际联合实验室·中国农业科学院郑州果树研究所郑州450009

西瓜属于葫芦科的重要水果作物,栽培类型丰富多样,其中黏籽西瓜、籽瓜和普通西瓜是被人类栽培和食用的主要类型,但是这3种类型西瓜的植物学性状差异并没有被系统调查过。针对18份黏籽西瓜、38份籽瓜、174份普通西瓜品种的14个植物学性... 详细信息

西瓜属于葫芦科的重要水果作物,栽培类型丰富多样,其中黏籽西瓜、籽瓜和普通西瓜是被人类栽培和食用的主要类型,但是这3种类型西瓜的植物学性状差异并没有被系统调查过。针对18份黏籽西瓜、38份籽瓜、174份普通西瓜品种的14个植物学性状进行调查和统计分析,结果显示,供试西瓜品种的植物学性状变异范围大,不同性状在3种类型西瓜之间的差异显著,籽瓜和黏籽西瓜的表型更相似。系统聚类和PCA分析可以将3种类型的西瓜品种基本区分开来,籽瓜介于黏籽西瓜和普通西瓜之间。该研究结果有助于充分了解和利用西瓜种质资源,能够为培育理想株型和优质的西瓜新品种提供科学依据。

关键词：黏籽西瓜籽瓜普通西瓜植物学性状