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Acta Geologica Sinica(English Edition) 2020年第5期94卷 1440-1450页

作者： Asghar ALI Khaista REHMAN Owais TAYYAB Tahir ZAMAN Mahad JAMEEL azeem khan Rafique AHMAD Muhammad IRFAN Department of Geology University of PeshawarKhyber Pakhtunkhwa 25120Pakistan National Centre of Excellence in Geology University of PeshawarKhyber Pakhtunkhwa 25120Pakistan Department of Geology The Bacha Khan UniversityCharsadda24420Pakistan

Analysis of the anomalous magnetic mineral intensities and geochemistry for placer gold deposits are presented for those of the Attock area at the confluence of the Indus and Kabul rivers in northwestern *** grids covering an area of 10 x18 m2 and 8 x10 m2 were analyzed using a G-858 Cesium Vapor *** anomalous zones obtained were plotted on contour maps,2 D and 3 D magnetic intensity *** on the magnetic anomalies,grid-1 of the study area was sampled at three different anomalous zones for geochemical *** zones contain gold concentrations,ranging from 2.11 ppm to 6.109 ppm with an average of 4.01 *** in gold concentration in the subsurface within the anomalous zones indicates that magnetometer survey followed by a geochemical analysis can potentially narrow down the gold-bearing anomalous zones.

关键词： geochemistry geophysics placer gold deposits magnetometer survey anomalous zones Pakistan

Enhancing cotton resilience to challenging climates through genetic modifications

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Journal of Cotton Research 2024年第2期7卷 196-206页

作者： AHMED Ali Ijaz khan azeem Iqbal NEGM Mohamed A.M. IQBAL Rida AZHAR Muhammad Tehseen khan Sultan Habibullah RANA Iqrar Ahmad Department of Plant Breeding and Genetics University of AgricultureFaisalabadFaisalabad 38000Pakistan Cotton Research Institute-Giza GizaEgypt Centre for Advanced Studies in Agriculture and Food Security University of AgricultureFaisalabadFaisalabad 38000Pakistan Centre of Agricultural Biochemistry and Biotechnology University of AgricultureFaisalabadFaisalabad 38000Pakistan School of Agriculture Sciences Zhengzhou UniversityZhengzhou 450000China

Cotton is one of the most important fiber crops that plays a vital role in the textile *** production has been unstable over the years due to climate change induced biotic stresses such as insects,diseases,and weeds,as well as abiotic stresses including drought,salinity,heat,and *** breeding methods have been used to breed climate resilient cotton,but it requires a considerable amount of time to enhance crop tolerance to insect pests and changing climatic conditions.A promising strategy for improving tolerance against these stresses is genetic *** review article discusses the role of genetic engineering in cotton *** essential concepts and techniques include genome editing via clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 9(CRISPR-Cas9),overexpression of target genes,downregulation using RNA interference(RNAi),and virus-induced gene silencing(VIGS).Notably,the Agrobacterium-mediated transformation has made significant contributions to using these techniques for obtaining stable transgenic plants.

关键词： Cotton Genome editing Drought Salinity Heat

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Genome-wide association analysis for stripe rust resistance in spring wheat(Triticum aestivum L.) germplasm

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Journal of Integrative Agriculture 2020年第8期19卷 2035-2043页

作者： Sher MUHAMMAD Muhammad SAJJAD Sultan Habibullah khan Muhammad SHAHID Muhammad ZUBAIR Faisal Saeed AWAN azeem iqbal khan Muhammad Salman MUBARAK Ayesha TAHIR Muhammad UMER Rumana KEYANI Muhammad InamAFZAL Irfan MANZOOR Javed Iqbal WATTOO Aziz-ur REHMAN Department of Bioinformatics and Biotechnology GC UniversityFaisalabad 38090Pakistan Department of Biosciences COMSATS University Islamabad(CUI)Islamabad 45550Pakistan Centre of Agricultural Biochemistry and Biotechnology(CABB) University of AgricultureFaisalabad 38000Pakistan Department of Plant Breeding and Genetics University of AgricultureFaisalabad 38000Pakistan Department of Biotechnology Faculty of Life SciencesUniversity of Central PunjabLahore 54000Pakistan Wheat Research Institute Ayub Agricultural Research Institute(AARI)Faisalabad 38950Pakistan

Stripe rust is a continuous threat to wheat crop all over the *** causes considerable yield losses in wheat crop every *** deployment of adult plant resistance(APR)genes in newly developing wheat cultivars is the most judicious strategy to combat this ***,we dissected the genetics underpinning stripe rust resistance in Pakistani wheat *** association panel of 94 spring wheat genotypes was phenotyped for two years to score the infestation of stripe rust on each accession and was scanned with 203 polymorphic *** on D’measure,linkage disequilibrium(LD)exhibited between loci distant up to 45 c ***-trait associations(MTAs)were determined using mixed linear model(MLM).Total 31 quantitative trait loci(QTLs)were observed on all 21 wheat *** QTLs were newly discovered as well as 19 QTLs and 35 previously reported Yr genes were validated in Pakistani wheat *** major QTLs were ***.2 AL and ***.3 BS(PVE,11.9%).Dissection of genes from the newly observed QTLs can provide new APR genes to improve genetic resources for APR resistance in wheat crop.

关键词： wheat Puccinia striiformis LD GWAS MTA PCoA

A discussion on cotton transformation during the last decade (2010–2021);an update on present trends and future prospects

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Journal of Cotton Research 2021年第4期4卷 372-385页

作者： QANDEEL‑E‑ARSH AZHAR Muhammad Tehseen ATIF Rana Muhammad ISRAR Mahwish khan azeem Iqbal KHALID Shahzad RANA Iqrar Ahmad Centre of Agricultural Biochemistry and Biotechnology(CABB) University of AgricultureFaisalabad 38000Pakistan Institute of Molecular Biology and Biotechnology Bahauddin Zakariya UniversityMultan 66000Pakistan School of Agriculture Sciences Zhengzhou UniversityZhengzhou 450000China Department of Plant Breeding and Genetics University of AgricultureFaisalabad 38000Pakistan Center of Advanced Studies in Agriculture and Food Security University of AgricultureFaisalabad 38000Pakistan Punjab Forestry Research Institute GutwalaFaisalabadPakistan Social Security Hospital FaisalabadPakistan

The introduction of genetically modified(GM)cotton in 1996 in the US and its worldwide spread later rejuvenated cotton production in many parts of the *** evolution is continued since then and currently,the 3rd and fourth generation of same GM cotton is grown in many parts of the *** GM cotton introduced in 1996 was simple Bt cotton that expressed a single Cry1Ac gene,the later generation carried multiple Cry genes along with the genes controlling herbicide *** day GM cotton does not only give stable resistance against lepidopteran insects but also facilitates the farmers to spray broad-spectrum herbicides without harming the *** evolution of GM cotton is continued both on the basic and applied side and interventions have been introduced during the last *** the cotton transformation was limited to Cocker strains which are getting possible in many other varieties,*** is successful with both gene gun,and Agrobacterium and inplanta transformation has made it a routine *** from overexpression studies for various purposes including biotic,abiotic,and quality traits,RNAi and genome editing are explored *** this review,we have tried to explore and discuss various interventions for improving transformation protocols,the applications of cotton transformation,and future strategies being developed to get maximum benefits from this technology during the last decade.

关键词： Cotton transformation Overexpression Genome editing Sustainable agriculture RNAi

On the Exact Solution for Axisymmetric Flow and Heat Transfer over a Nonlinear Radially Stretching Sheet

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Chinese Physics Letters 2012年第8期29卷 168-171页

作者： azeem Shahzad Ramzan Ali Masood khan Department of Mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan

We investigate the boundary-layer flow and heat transfer of a magnetohydrodynamic viscous fluid over a nonlinear radially porous stretching sheet within a porous *** flow is generated due to a nonlinear stretching sheet and influenced by a continuous suction/blowing of the fluid through the porous *** governing momentum and thermal boundary layer equations are converted into ordinary differential equations by appropriate similarity *** exact solution for the velocity and the temperature fields are derived in the form of an incomplete Gamma *** analytic solutions are found by the homotopy analysis *** graphical results for velocity and temperature fields are presented and ***,the numerical values of the skin friction coefficient and the Nusselt number are calculated and discussed.

关键词： function stretching porous

Spin-Split Joint Density of States in GdN

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Chinese Physics Letters 2016年第2期33卷 115-117页

作者： Muhammad azeem Department of Applied Physics University of Sharjah MacDiarmid Institute for Advanced Materials and Nanotechnology School of Chemical and Physical SciencesVictoria University

We present an investigation of the optical constants of the near stoichiometric GdN films. Transmission and reflection spectra are collected for the paramagnetic and the ferromagnetic GdN in the photon energy range of 0.5-5.5 eV. In the ferromagnetic phase, behaviors of minority and majority spin states are specifically focussed on, which indicate spin-split joint density of states. The results confirm the LSDA＋U estimates of energy gap associated with the majority-spins and also the magnitude of spin splitting.

关键词： of on it in Spin-Split Joint Density of States in GdN for

Facies Analysis, Sequence Stratigraphy and Diagenetic Studies of the Jurassic Carbonates of the Kohat Basin, Northwest Pakistan: Reservoir Implications

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Acta Geologica Sinica(English Edition) 2022年第5期96卷 1673-1692页

作者： Emadullah khan Abbas Ali NASEEM Suleman khan Bilal WADOOD Faisal REHMAN Maryam SALEEM Mubashir MEHMOOD Waqar AHMAD Zubair AHMED Tahir azeem Department of Earth Sciences Quaid-e-Azam UniversityIslamabad 45320Pakistan Department of Geology Abdul Wali Khan UniversityMardan 23200Pakistan Department of Geology University of PeshawarPeshawar 24420Pakistan State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 71006China Department of Geology University of SwabiSwabi 23561Pakistan Department of Earth&Environmental Sciences Bahria UniversityIslamabad 44000Pakistan Department of Earth&Atmospheric Sciences University of AlbertaEdmonton T6G 2R3Canada

The present study deals with the depositional facies, diagenetic processes and sequence stratigraphy of the shallow marine carbonates of the Samana Suk Formation, Kohat Basin, in order to elucidate its reservoir quality. The Samana Suk Formation consists of thin to thick-bedded, oolitic, bioclastic, dolomitic and fractured limestone. Based on the integration of outcrop, petrographic and biofacies analyses, the unit is thought to have been deposited on a gentle homoclinal ramp in peritidal, lagoonal and carbonate shoal settings. Frequent variations in microfacies based sea-level curve have revealed seven Transgressive Systems Tracts(TSTs) and six Regressive Systems Tracts(RSTs). The unit has undergone various stages of diagenetic processes, including mechanical and chemical compaction, cementation,micritization, dissolution and dolomitization. The petrographic analyses show the evolution of porosity in various depositional and diagenetic phases. The fenestral porosity was mainly developed in peritidal carbonates during deposition,while the burial dissolution and diagenetic dolomitization have greatly enhanced the reservoir potential of the rock unit, as is further confirmed by the plug porosity and permeability analyses. The porosities and permeabilities were higher in shoal facies deposited in TSTs, as compared to lagoonal and peritidal facies, except for the dolomite in mudstone, deposited during RSTs. Hence good, moderate and poor reservoir potential is suggested for shoal, lagoonal and peritidal facies,respectively.

关键词： porosity diagenesis reservoir Samana Suk Formation Kohat Basin

Vegetation-environment relationship in conifer dominating forests of the mountainous range of Indus Kohistan in northern Pakistan

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Journal of Mountain Science 2020年第8期17卷 1989-2000页

作者： Adam khan Moinuddin AHMED Muhammad Faheem SIDDIQI Mohib SHAH Eduardo Soares CALIXTO Afsheen khan Paras SHAH Javed IQBAL Muhammad azeem Department of Botany University of BunerSwari 19290Pakistan Dr.Moinuddin Ahmed Research Laboratory of Dendrochronology and Plant Ecology Department of Botany FederalUrdu University of ArtsScience and Technology Gulshan-e-Iqbal campus KarachiKarachi 75300Pakistan Department of Botany University of Karachi Karachi 75270Pakistan Department of Botany Abdul Wali Khan University MardanMardan 23200Pakistan Department of Entomology University of Sao PauloRibeirao PretoRibeirao Preto 14040-900Brazil Dr.Abdul Ghaffar laboratory of Plant Pathology and Aerobiology Department of BotanyFederal Urdu University ofArtsScience and Technology Gulshan-e-Iqbal campus KarachiKarachi 75300Pakistan

Environmental variables play a crucial role in shaping vegetation structure,mainly in mountainous *** studies have attempted to identify the environment-vegetation relationship of Conifer Dominating Forests(CDF)***,due to differences in local climate and soil composition,different environmental drivers can be *** applying multivariate analysis techniques,this study investigated the vegetation-environment relationship of CDF of Indus Kohistan in northern *** results showed that CDF of Indus Kohistan are distributed in five distinct ecological groups,which are dominated by different trees and understory species.A total of 7 trees and 71 understory species were recorded from the sampling *** deodara was the leading species among four groups,having the highest importance value(IV),density and basal *** I was dominated by Pinus wallichiana with the second highest importance value,density and basal *** addition,elevation,slope,maximum water holding capacity(MWHC),soil moisture(SM),total organic matter(TOM),sodium,phosphorus and nickel showed highly significant influence on composition and distribution pattern of Indus Kohistan ***,this study shows a new evidence of vegetation-environment relationship,pointing out specific drivers of vegetation structure in CDF of Indus Kohistan region in northern Pakistan.

关键词： Conifer forests Understory species Environmental variables Multivariate analysis Indus Kohistan Northern Pakistan

Asymmetric nexus between commercial policies and consumption‑based carbon emissions:new evidence from Pakistan

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Financial Innovation 2023年第1期9卷 865-888页

作者： Muhammad Zubair Chishti Hafiz Syed Muhammad azeem Muhammad Kamran khan School of Business Zhengzhou UniversityZhengzhouHenanChina School of Economics Quaid I Azam UniversityIslamabadPakistan Department of Economic University of ChakwalChakwalPunjabPakistan Ministry of Finance Government of PakistanIslamabadPakistan Management studies department Bahria Business SchoolBahria UniversityIslamabadPakistan

The current study extends the previous literature by exploring the effects of a newly discovered driver,i.e.,import taxes(as a proxy for commercial policies),on the consumption-based carbon emissions(CCO2e)for *** empirical analysis,several tests and methods,including Augmented Dickey–Fuller unit root test,Zivot–Andrews unit root test,asymmetric cointegration bound testing approach,non-linear ARDL,Wald-test,Granger causality test and wavelet quantile correlation(WQC)method are ***,NARDL technique estimates reveal that contractionary commercial policy enhances the environmental quality by disrupting the detrimental effects of ***,expansionary commercial policy escalates the environmental pollution by boosting the carbon ***,the exports and the renewable energy improve the ecological quality;however,GDP deteriorates the atmospheric quality by increasing the ***,WQC method and the trivariate Granger causality test are deployed to confirm the robustness of the *** on the findings,some crucial policies are also recommended for sustainable and green development in Pakistan.

关键词： Commercial policies Consumption-based carbon emissions Asymmetric ARDL Wavelet quantile correlation(WQC) Pakistan

Spark Spectrum Allocation for D2D Communication in Cellular Networks

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Computers, Materials & Continua 2022年第3期70卷 6381-6394页

作者： Tanveer Ahmad Imran khan azeem Irshad Shafiq Ahmad Ahmed TSoliman Akber Abid Gardezi Muhammad Shafiq Jin-Ghoo Choi Department of Electrical and Electronic Engineering Auckland University of TechnologyAuckland1010New Zealand Department of Electrical Engineering University of Engineering and TechnologyPeshawar25120Pakistan Department of Computer Science and Software Engineering International Islamic University IslamabadIslamabad44000Pakistan Industrial Engineering Department College of EngineeringKing Saud UniversityP.O.Box 800Riyadh11421Saudi Arabia Department of Computer Science COMSATS University IslamabadIslamabadPakistan Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

The device-to-device(D2D)technology performs explicit communication between the terminal and the base station(BS)terminal,so there is no need to transmit data through the BS *** establishment of a short-distance D2D communication link can greatly reduce the burden on the BS *** present,D2D is one of the key technologies in 5G technology and has been studied in depth.D2D communication reuses the resources of cellular users to improve system key parameters like utilization and ***,repeated use of the spectrum and coexistence of cellular users can cause co-channel *** at the interference problem under the constraint of fair resource allocation and improving the system throughput,this paper proposes an effective resource optimization scheme based on the firework *** main idea is to expand the weighted sum rate and convert the allocated resource expression into fireworks to determine the correlation *** simulation results show that,compared with the existing scheme,this scheme improves system performance by reducing interference.

关键词： D2D communication 5G technology spectrum allocation