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Effect of geojute technique on density,diversity and carbon stock of plant species in landslide site of North West Himalaya

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Journal of mountain Science 2018年第9期15卷 1961-1971页

作者： Harsh mEHTA Raj KUmAR m ayub dar GP JUYAL Sridhar PATRA Sneha DOBHAL AC RATHORE Rajesh KAUSHAL PK mISHRA ICAR-Indian Institute of Soil and Water Conservation 218Kaulagrh RoadDehradun-248195UttarakhandIndia ICAR-Central Soil Salinity Research Institute Karnal-132001HaryanaIndia United Nations University-Institute for Integrated management of material Fluxes and ofResources(UNU-FLORES) Ammonstrasse 74Dresden-01067Germany VCSG Uttarakhand University of Horticulture and Forestry College of ForestryRanichauri-249 199UttarakhandIndia

mountainous regions of the globe experience landslides due to heavy rainfall and unplanned construction on slopes. Geojute is adopted globally as a landslide rehabilitation measure, but its impact on natural vegetation development is poorly understood. The present study was conducted to examine the impact of geojute application on vegetation restoration, ecology and carbon stock in a recently occurred landslide, during 2012. The results revealed that the geojute application improved the richness, diversity, density and basal area of plant species at the landslide site. Likewise, biomass production, carbon stock and carbon sequestration of plant species was observed significantly higher in geojute treatments compared to control(without geojute treatment). moreover, significant improvement in soil moisture was recorded beneath the geojute treatments. Further, results showed that the geojute is highly effective in controlling soil erosion at the landslide site. The findings of this study revealed ecological and environmental benefits of geojute application in term of improvement in vegetation recovery processes, species diversity and carbon sequestration at the landslide site. The scientific outcome of this study can be helpful for planning the rehabilitation measures in landslide affected regions of the globe.

关键词：植物种类山崩地点密度存货碳西方北方

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Arbuscular mycorrhizal fungi for salinity stress: Anti-stress role and mechanisms

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Pedosphere 2023年第1期33卷 212-224页

作者： muzafar Hdar Syed mRAZVI Narender SINGH Ahmad mUSHTAQ Shahnawaz dar Shabber HUSSAIN Department of Botany Kurukshetra UniversityKurukshetraHaryana 136119India Department of Plant Breeding and Genetics Sher-e Kashmir University of Agricultural Sciences and Technology of Kashmir(SKUAST-K)ShalimarSrinagar 190021India Research Center for Residue and Quality Analysis SKUAST-KShalimarSrinagar 190021India Krishi Vigyan Kendra(KVK)Kargil 11(Zanskar) SKUAST-KShalimarSrinagar 190021India

Salinity stress is considered one of the most harmful environmental plant stresses,as it reduces irrigated land crop production by over 20%***,it is imperative to develop salt-tolerant crops in addition to understanding various mechanisms enabling plant growth under saline stress ***,a novel biological approach that aims to address salinity stress has gained momentum,which involves the use of arbuscular mycorrhizal(Am)fungi in plant-microbe *** has been observed that most terrestrial plant root systems are colonized by Am fungi,which modulate plant growth in multiple *** such interactions,Am fungi obtain organic compounds from the host plant while providing mineral nutrients,including nitrogen,phosphorus,potassium,calcium,and sulfur,to the host *** recent decades,our understanding of the multifunctional roles played by Am fungi has been broadened and advanced,particularly regarding the mediation of mineral nutrients and the alleviation of stress(especially salt stress)in most crop *** uptake of phosphorus and augmented tolerance to salinity result in enhanced plant growth and *** evident anti-stress role of Am fungi and related mechanisms have been described separately,though they need to be analyzed and discussed ***,the present review addresses the major role of Am fungi in mitigating salt stress and their beneficial effects on plant growth and *** mechanisms employed by Am fungi to amplify the salt tolerance of host plants by increased nutrient accession(e.g.,phosphorus,nitrogen,and calcium),physiological changes(e.g.,photosynthetic efficiency,cell membrane permeability,water status,and nitrogen fixation),and biochemical changes(e.g.,the accumulation of different osmolytes such as proline and soluble sugars)are also ***,this review highlights the role of Am fungi in the Na+/H+*** plants,Am fungi inoculation increases the activities of mul

关键词： biochemical and physiological changes osmolytes plant-microbe interaction salt stress sodium accumulation

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AAV6 as an effective gene delivery vector for prolonged transgene expression in intervertebral disc cells in vivo

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Genes & Diseases 2022年第4期9卷 1074-1085页

作者： Chi Heon Kim Colleen Oliver Hamid dar Hicham Drissi Steven m.Presciutti Department of Orthopaedics Emory University School of MedicineAtlantaGA 30329USA Atlanta Veteran Affairs medical Center DecaturGA 30030USA

Intervertebral disc degeneration is the main contributor to low back pain,now the leading cause of disability *** transfer,either in a therapeutic attempt or in basic research to understand the mechanisms of disc degeneration,is a fascinating and promising tool to manipulate the complex physiology of the *** vectors based on the adeno-associated virus(AAV)have emerged as powerful transgene delivery vehicles yet a systematic investigation into their respective tropism,transduction efficiency,and relative toxicity have not yet been performed in the disc in ***,we used in vivo bioluminescence imaging to systematically compare multiple AAV serotypes,injection volumes,titers,promoters,and luciferase reporters to determine which result in high transduction efficiency of murine nucleus pulposus(NP)cells in *** find that AAV6 using a CAG promoter to drive transgene expression,delivered into the NP of murine caudal discs at a titer of 1011 GC/mL,provides excellent transduction efficiency/kinetics and low toxicity in *** also show,for the first time,that the transduction of NP cells can be significantly boosted in vivo by the use of small cell permeabilization ***,to our knowledge,we are the first to demonstrate the use of optical tissue clearing and three-dimensional lightsheet microscopy in the disc,which was used to visualize fine details of tissue and cell architecture in whole intact discs following AAV6 *** together,these data will contribute to the success of using AAV-mediated gene delivery for basic and translational studies of the IVD.

关键词： Adeno-associated virus Bioluminescence imaging Cell permeabilization peptide Intervertebral disc Lightsheet microscopy Nucleus pulposus transduction Tissue clearing

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Energy transport for ion acoustic waves in a spin polarized quantum plasma

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Communications in Theoretical Physics 2020年第1期72卷 124-129页

作者： m ayub Z Iqbal H A Shah G murtaza Salam Chair Department of PhysicsG.C.UniversityKatchery RoadLahore 54000Pakistan Department of Physics G.C.UniversityKatchery RoadLahore 54000Pakistan Department of Physics Mirpur University of Science and TechnologyMirpur-10250(AJK)Pakistan

The separate spin evolution quantum hydrodynamics(SSE-QHD)model is used to investigate the energy behavior for ion acoustic waves in degenerate quantum *** results show that the energy flow speed decreases with spin polarization *** is also shown that it decreases with the increasing rate up to a certain range of wave number and then it goes to zero *** is observed that Bohm potential suppresses the energy flow *** is also noticed that the energy flow speed deviates from the group velocity even in the absence of Bohm potential ***,the contribution of of Bohm poential effect in spin polarized plasma reduces the extent of deviation.

关键词： spin polarization quantum plasma ion acoustic wave energy flow speed

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Effects of partial slip on flow of a third grade fluid

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Acta mechanica Sinica 2006年第5期22卷 393-396页

作者： S. Asghar m. mudassar Gulzar m. ayub Department of mathematics COMSATS Institute of Information Technology H-8 Islamabad Pakistan Department of mathematics Quaid-i-Azam University

This paper is an analytical study of the rotating flow of a third grade fluid past a porous plate with partial slip effects. It serves as a flow model for the study of polymers. The analytic solution has been determin... 详细信息

关键词： Partial-slip Non-Newtonian fluid Analytic solution Homotopy analysis method

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Prediction of promiscuous T-cell epitopes in the Zika virus polyprotein:An in silico approach

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Asian Pacific Journal of Tropical medicine 2016年第9期9卷 822-828页

作者： Hamza dar Tahreem Zaheer muhammad Talha Rehman Amjad Ali Aneela Javed Gohar ayub Khan mustafeez mujtaba Babar Yasir Waheed Atta-ur-Rahman School of Applied Biosciences(ASAB) National University of Sciences and Technology Shifa College of Pharmaceutical Sciences Shifa Tameer-e-Millat University Foundation University medical College Foundation University Islamabad

Objective:To predict immunogenic promiscuous T-cell epitopes from the polyprotein of the Zika virus using a range of bioinformatics *** date,no epitope data are available for the Zika virus in the IEDB ***:We retrieved nearly 54 full length polyprotein sequences of the Zika virus from the NCBI database belonging to different outbreaks.A consensus sequence was then used to predict the promiscuous T cell epitopes that bind mHC 1 and mHC II alleles using Propred1 and Propred immunoinformatic algorithms *** antigencity predicted score was also calculated for each predicted epitope using the Vaxi Jen 2.0 ***:By using Pro Pred1,23 antigenic epitopes for HLA class I and 48 antigenic epitopes for HLA class II were predicted from the consensus polyprotein sequence of Zika *** greatest number of mHC class I binding epitopes were projected within the NS5(21%),followed by Envelope(17%).For mHC class II,greatest number of predicted epitopes were in NS5(19%) followed by the Envelope,NS1 and NS2(17% each).A variety of epitopes with good binding affinity,promiscuity and antigenicity were predicted for both the HLA ***:The predicted conserved promiscuous T-cell epitopes examined in this study were reported for the first time and will contribute to the imminent design of Zika virus vaccine candidates,which will be able to induce a broad range of immune responses in a heterogeneous HLA ***,our results can be verified and employed in future efficacious vaccine formulations only after successful experimental studies.

关键词： Zika Virus B-Cell Epitopes T-Cell Epitopes Vaccine Antigenicity

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Stokes'first problem for the fourth order fluid in a porous half space

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Acta mechanica Sinica 2007年第1期23卷 17-21页

作者： T.Hayat F.Shahazad m.ayub Department of mathematics Quaid-I-Azam University 45320Islamabad 44000Pakistan

In this study, the flow of a fourth order fluid in a porous half space is modeled. By using the modified darcy＇s law, the flow over a suddenly moving flat plate is studied numerically. The influence of various parame... 详细信息

关键词： Fourth order fluid Porous space Numerical solution modified darcy's law

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Improved hybrid position/force controller design of a flexible robot manipulator using a sliding observer

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Journal of Systems Engineering and Electronics 2009年第1期20卷 146-158页

作者： Farooq m Wang Daobo dar N. U Coll. of Automation Engineering Nanjing Univ. of Aeronautics & Astronautics Nanjing 210016 P. R. China Coll. of mechanical Engineering Univ. of Engineering and Technology Taxila Pakistan

An improved hybrid position/force controller design of a flexible robot manipulator is presented using a sliding observer. The friction between the end effector and the environment is considered and compensated. For systematic reasons the controller is designed taking into consideration the rigid link subsystems and the flexible joints. The proposed control system satisfies the stability of the two subsystems and copes with the uncertainty of robot dynamics. A sliding observer is designed to estimate the time derivative of the torque applied as input to the rigid part of the robot. For the stability of the observer, it is assumed that the uncertainty of the observed system is bounded. A mRAC algorithm is used for the estimation of the friction forces at the contact point between the end effector and the environment. Finally simulation and experimental results are given, to demonstrate the effectiveness of the proposed controller.

关键词： force control sliding control Lyapunov stability robot end effector friction force.

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Distribution,Etiology,molecular Genetics and management Perspectives of Northern Corn Leaf Blight of maize(Zea mays L.)

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Phyton-International Journal of Experimental Botany 2022年第10期91卷 2111-2133页

作者： m.Ashraf Ahangar Shabir Hussain Wani Zahoor A.dar Jan Roohi Fayaz mohiddin monika Bansal mukesh Choudhary Sumit K.Aggarwal S.A.Waza Khursheed Ahmad dar Ayman El Sabagh Celaleddin Barutcular Omer Konuşkan mohammad Anwar Hossain mountain Research Centre for Field Crops Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirJammu&Kashmir192124India Dry Land Agriculture Research Station Rangreth Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirJammu&Kashmir191132India School of Agricultural Biotechnology Punjab Agricultural UniversityLudhiana141001India Indian Institute of maize Research PAU CampusLudhiana141001India College of Temperate Sericulture Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirJammu&Kashmir191132India Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33516Egypt Department of Field Crops Faculty of AgricultureSiirt UniversitySiirt56100Turkey Department of Field Crops Faculty of AgricultureUniversity ofÇukurovaAdana01330Turkey Department of Field Crops Faculty of AgricultureHatay Mustafa Kemal UniversityHatay31060Turkey Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh2202Bangladesh

maize is cultivated extensively throughout the world and has the highest production among ***,Northern corn leaf blight(NCLB)disease caused by Exherohilum turcicum,is the most devastating limiting factor of maize *** disease causes immense losses to corn yield if it develops prior or during the tasseling and silking stages of crop *** has a worldwide distribution and its development is favoured by cool to moderate temperatures with high relative *** prevalence of the disease has increased in recent years and new races of the pathogen have been reported *** fungus *** is highly variable in *** different management strategies have proved effective to reduce economic losses from NCLB,the development of varieties with resistance to *** is the most efficient and inexpensive way for disease manage*** resistance for NCLB governed by Ht genes is a race-specific resistance which leads to a higher level of ***,some Ht genes can easily become ineffective under the high pressure of virulent strains of the ***,it is imperative to understand and examine the consistency of the genomic locations of quantitative trait loci for resistance to NCLB in diverse maize *** breeding approaches for pyramiding resistant genes against *** in maize can impart NCLB resistance under high disease pressure ***,the genome editing approaches like CRISPR-cas9 and RNAi can also prove vital for developing NCLB resistant maize *** such this review delivers emphasis on the importance and current status of the disease,racial spectrum of the pathogen,genetic nature and breeding approaches for resistance and management strategies of the disease in a sustainable manner.

关键词： Northern corn leaf blight etiology Exherohilum turcicum pathogenic variability disease resistance management strategies

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Paleo-glacial reconstruction of the Thajwas glacier in the Kashmir Himalaya using 10Be cosmogenic radionuclide dating

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Geoscience Frontiers 2022年第6期13卷 30-40页

作者： Omar Jaan Paul Shakil Ahmad Romshoo Reyaz Ahmad dar Pankaj Kumar Soumya Prakash Dhal Sundeep Chopra Department of Earth Sciences University of KashmirSrinagarIndia Islamic University of Science and Technology(IUST) KashmirIndia Inter-University Accelerator Centre(IUAC) New DelhiIndia Department of Geoinformatics University of KashmirSrinagarIndia

Quantitative glacial chronologies of past glaciations are sparse in the Himalaya, and mostly absent in the Kashmir Himalaya. We used cosmogenicBe exposure dating, and geomorphological mapping to reconstruct glacial advances of the Thajwas Glacier(TG) in the Great Himalayan Range of the Kashmir Himalaya. FromBe exposure dating of ten moraine boulders, four glacial stages with ages ~20.77 ±2.28 ka, ~11.46 ± 1.69 ka, ~9.12 ± 1.39 ka and ~4.19 ± 0.78 ka, were identified. The reconstructed cosmogenic radionuclide ages confirmed the global Last Glacial maximum(g LGm), Younger Dryas, Early Holocene, and Neoglaciation episodes. As per area and volume change analyses, the TG has lost 51.1 km~2 of its area and a volume of 2.64 km~3 during the last 20.77 ± 2.28 ka. Overall, the results suggested that the TG has lost 64% of area and 73% of volume from the Last glacial maximum to Neoglaciation and about 85.74% and 87.67% of area and volume, respectively, from Neoglaciation to the present day. The equilibrium line altitude of the TG fluctuated from 4238 m a.s.l present to3365 m a.s.l during the g LGm(20.77 ± 2.28 ka). The significant cooling induced by a drop in mean ambient temperature resulted in a positive mass balance of the TG during the g LGm. Subsequently the melting accelerated due to the continuing rise of the global ambient temperature. Paleo-glacial history reconstruction of the Kashmir Himalaya, with its specific geomorphic and climatic setting, would help close the information gap about the chronology of past regional glacial episodes.

关键词： Glacier reconstruction Cosmogenic 10Be gLGm Kashmir Himalaya Equilibrium Line Altitude

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