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| 1 | Vegetation-environment relationships in the forests of Chitral district Hindukush range of Pakistan显示文摘We investigated the composition of plant communities to quantify their relationships with environmental parameters in the Chitral Hindukush range of Pakistan. We sampled tree vegetation using the Point Centered Quarter (PCQ) method while understory vegetation was sampled in 1.5-m circular quadrats. Cedrus deodara is the national symbol of Pakistan and was dominant in the sampled communities. Because environmental variables determine vegetation types, we analyzed and evaluated edaphic and topographic factors. DCA-Ordination showed the major gradient as an amalgam of elevation (p<0.05) and slope (p<0.01) as the topographic factors correlated with species distribution. Soil variables were the factors of environmental significance along DCA axes. However, among these factors, Mg2+ , K + and N2+ contributed not more than 0.054% 0.20% and 0.073%, respectively, to variation along the first ordination axis. We conclude that the principal reason for weak or no correlation with many edaphic variables was the anthropogenic disturbance of vegetation. The understory vegetation was composed of perennial herbs in most communities and was most dense under the tree canopy. The understory vegetation strongly regulates tree seedling growth and regeneration patterns. We recommend further study of the understory vegetation using permanent plots to aid development of forest regeneration strategies. | Nasrullah Khan Syed Shahid Shaukat Moinuddin Ahmed Muhammad Faheem Siddiqui | 2013 | Journal of Forestry Research2013，24，2： | 8 |
| 2 | Evaluation of potential RNA-interference-target genes to control cotton mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcuidae)显示文摘 | Arif M. Khan Muhammad Ashfaq Azhar A. Khan Muhammad T. Naseem Shahid Mansoor | 2018 | Insect Science2018，25，5： | 5 |
| 3 | 草甘膦对转基因抗草甘膦大豆的安全性研究显示文摘采用草甘膦种子和茎叶处理研究转基因抗草甘膦大豆的安全性,为减少草甘膦用量和转基因抗草甘膦大豆的安全应用提供理论依据。以转基因抗草甘膦大豆为试材,采用田间随机区组设计方法,测定转基因大豆的生理指标和杂草防除效果。结果表明,562. 5 g. a. i./hm^2草甘膦种子处理和1 125 g. a. i./hm^2草甘膦茎叶处理后,除莽草酸含量不受影响,转基因大豆的株高、鲜质量、干质量、叶绿素含量以及光合速率各项生理指标均在施药初期受到抑制,茎叶处理后28 d、种子处理播种后61 d时各生理指标均可恢复正常;草甘膦茎叶处理对杂草具有显著的防除效果,草甘膦施用后7 d,杂草防效为94. 67%,28 d,杂草防效为72. 33%,且对大豆安全。草甘膦种子和茎叶处理对转基因抗草甘膦大豆均具有较好的安全性,且茎叶处理能有效控制杂草。 | 陈银竹 丁伟 刘胜男 Muhammad Shahid khan | 2018 | 江苏农业科学2018，46，16： | 4 |
| 4 | 干旱胁迫下转基因抗旱大豆与不同碳代谢途径杂草生存竞争的研究显示文摘以C_3代谢途径杂草苘麻(Abutilon theophrasti Medicus)、C_4代谢途径杂草反枝苋(Amaranthus retroflexus)为代表,研究干旱胁迫下它们与转DREB3基因抗旱大豆的生存竞争关系,以期为转基因抗旱大豆生存竞争性提供基础数据。采用田间试验方法,分别测定大豆、杂草的光合特性与生物量。结果表明,干旱胁迫下C_3杂草苘麻、C_4杂草反枝苋在与大豆的生存竞争中均处于优势地位,杂草的生物量与光合特性均表现出显著优势。混栽大豆株高、鲜质量、根瘤固氮酶活性均显著降低,其中C_4杂草比C_3杂草对大豆的竞争优势更强。 | 王靖宇 丁伟 Muhammad Shahid Khan 程茁 戴航宇 | 2018 | 江苏农业科学2018，46，3： | 4 |
| 5 | Phyto-Toxicity of Chromium in Maize: Oxidative Damage, Osmolyte Accumulation, Anti-Oxidative Defense and Chromium Uptake显示文摘Agricultural production systems are immensely exposed to different environmental stresses in which heavy metal stress receives serious concerns. This study was conducted to explore the deleterious effects of different chromium(Cr) stress levels, i.e., 0, 30, 6090, 120, and 150 μmol L-1, on two maize genotypes, Wandan 13 and Runnong 35. Both genotypes were evaluated by measuring their growth and yield characteristics, Cr accumulation in different plant tissues, alterations in osmolyte accumulation, generation o reactive oxygen species(ROS), and anti-oxidative enzyme activity to scavenge ROS. The results showed that Cr stress decreased the leaf area, cob formation, 100-grain weight, shoot fresh biomass, and yield formation, while Cr accumulation in different maize tissues was found in the order of roots > leaves > stem > seeds in both genotypes. The increased Cr toxicity resulted in higher free proline soluble sugars and total phenolic contents, and lower soluble protein contents. However, enhanced lipid peroxidation was noticed in the forms of malondialdehyde, hydrogen peroxide(H2O2) and thiobarbituric acid reactive substance accumulation, and electrolyte leakage. The hyperactivity of superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, especially glutathione peroxidase and glutathione reductase indicated that these anti-oxidative enzymes had a central role in protecting maize from Cr toxicity, especially for Wandan 13. Moreover, higher uptake and less translocation of Cr contents into the grains of Wandan 13 implied its importance as a potential candidate against soil Cr pollution. | Shakeel Ahmad ANJUM Umair ASHRAF Imran KHAN Mohsin TANVEER Muhammad SHAHID Abdul SHAKOOR WANG Longchang | 2017 | Pedosphere2017，27，2： | 3 |
| 6 | Boron Application Improves Growth,Yield and Net Economic Return of Rice显示文摘A field trial was conducted to evaluate the role of boron (B) application at different growth stages in improving the growth,yield and net economic return of rice at farmer's fields during summer season,2009.Boron was soil applied (1.5 kg/hm2) at the transplanting,tillering,flowering and grain formation stages of rice;foliar applied (1.5% B solution) at the tillering,flowering and grain formation stages of rice,and dipped seedling roots in 1.5% B solution before transplanting;while control plots did not apply any B.Boron application (except dipping of seedling roots in B solution,which caused toxicity and reduced the number of tillers and straw yield than control) substantially improved the rice growth and yield.However,soil application was better in improving the number of grains per panicle,1000-grain weight,grain yield,harvest index,net economic income and ratio of benefit to cost compared with the rest of treatments.Overall,for improving rice performance and maximizing the net economic returns,B might be applied as soil application at flowering. | Mubshar HUSSAIN M.Ayaz KHAN M.Bismillah KHAN Muhammad FAROOQ Shahid FAROOQ | 2012 | Rice science2012，19，3： | 3 |
| 7 | Rice molecular markers and genetic mapping:Current status and prospects显示文摘Dramatic changes in climatic conditions that supplement the biotic and abiotic stresses pose severe threat to the sustainable rice production and have made it a difficult task for rice molecular breeders to enhance production and productivity under these stress factors. The main focus of rice molecular breeders is to understand the fundamentals of molecular pathways involved in complex agronomic traits to increase the yield. The availability of complete rice genome sequence and recent improvements in rice genomics research has made it possible to detect and map accurately a large number of genes by using linkage to DNA markers. Linkage mapping is an effective approach to identify the genetic markers which are co-segregating with target traits within the family. The ideas of genetic diversity, quantitative trait locus(QTL) mapping, and marker-assisted selection(MAS) are evolving into more efficient concepts of linkage disequilibrium(LD) also called association mapping and genomic selection(GS), respectively. The use of cost-effective DNA markers derived from the fine mapped position of the genes for important agronomic traits will provide opportunities for breeders to develop high-yielding, stress-resistant, and better quality rice cultivars. Here we focus on the progress of molecular marker technologies, their application in genetic mapping and evolution of association mapping techniques in rice. | Ghulam Shabir Kashif Aslam Abdul Rehman Khan Muhammad Shahid Hamid Manzoor Sibgha Noreen Mueen Alam Khan Muhammad Baber Muhammad Sabar Shahid Masood Shah Muhammad Arif | 2017 | Journal of Integrative Agriculture2017，16，9： | 2 |
| 8 | An efficient model based on artificial bee colony optimization algorithm with Neural Networks for electric load forecasting显示文摘 | Shahid M. Awan Muhammad Aslam Zubair A. Khan Hassan Saeed | 2014 | Neural Computing and Applications . 2014 (7-8)2014，，7： | 1 |
| 9 | Dietary vitamin E in White Leghorn layer breeder hens: a strategy to combat aflatoxin B1-induced damage显示文摘 | Wajid Arshad Khan Muhammad Zargham Khan Ahrar Khan Zahoor Ul Hassan Shahid Rafique Muhammad Kashif Saleemi Abdul Ahad | 2014 | Avian Pathology2014，，5： | 1 |
| 10 | Stable Huh-7 cell lines expressing non-structural proteins of genotype 1a of hepatitis C virus显示文摘 | Imran Shahid Sana Gull Bushra Ijaz Waqar Ahmad Muhammad Ansar Sultan Asad Humera Kausar Muhammad Tahir Sarwar Muhammad Kazim Khan Sajida Hassan | 2013 | Journal of Virological Methods2013，，1： | 1 |
| 11 | Velocity and Structural Modeling of Mesozoic Chiltan Limestone and Goru Formation for Hydrocarbon Evaluation in the Bitrisim Area, Lower Indus Basin, Pakistan显示文摘The present study focuses on building a workflow for structural interpretation and velocity modeling and implementing to Jurassic-Cretaceous succession(Chiltan Limestone and Massive sand of the Lower Goru Formation).2D-Migrated seismic sections of the area are used as data set and in order to confirm the presence of hydrocarbons in the study area,P and S-wave seismic velocities are estimated from single-component seismic data.Some specific issues in the use of seismic data for modeling and hydrocarbon evaluation need to deal with including distinguishing the reservoir and cap rocks,and the effects of faults,folds and presence of hydrocarbons on these rocks.This study has carried out the structural interpretation and modeling of the seismic data for the identification of traps.The results demonstrate existence of appropriate structural traps in the form of horst and grabens in the area.2D and 3D velocity modeling of the horizons indicates the presence of high velocity zones in the eastern half of the study while relatively low velocity zones are encountered in the western half of the area.Two wells were drilled in the study area(i.e.Fateh-01 and Ichhri-01)and both are dry.Immature hydrocarbons migration is considered as a failure reason for Fateh-01 and Ichhri-01 well. | Sarfraz KHAN Zahid LATIF Muhammad HANIF Irfan U. JAN Shahid IQBAL | 2016 | Acta Geologica Sinica(English Edition)2016，90，1： | 1 |
| 12 | Mechanisms of metal-phosphates formation in the rhizosphere soils of pea and tomato: environmental and sanitary consequences显示文摘 | Annabelle Austruy Muhammad Shahid Tiantian Xiong Maryse Castrec Virginie Payre Nabeel Khan Niazi Muhammad Sabir Camille Dumat | 2014 | Journal of Soils and Sediments2014，，： | 1 |
| 13 | A Novel Compact Highly Isolated UWB MIMO Antenna with WLAN Notch显示文摘This paper presents a compact Multiple Input Multiple Output(MIMO)antenna with WLAN band notch for Ultra-Wideband(UWB)applications.The antenna is designed on 0.8mmthick low-cost FR-4 substrate having a compact size of 22mm×30 mm.The proposed antenna comprises of two monopole patches on the top layer of substrate while having a shared ground on its bottom layer.The mutual coupling between adjacent patches has been reduced by using a novel stub with shared ground structure.The stub consists of complementary rectangular slots that disturb the surface current direction and thus result in reducing mutual coupling between two ports.A slot is etched in the radiating patch for WLAN band notch.The slot is used to suppress frequencies ranging from 5.1 to 5.9 GHz.The results show that the proposed antenna has a very good impedance bandwidth of|S11|<−10 dB within the frequency band from 3.1–14 GHz.A low mutual coupling of less than−23 dB is achieved within the entire UWB band.Furthermore,the antenna has a peak gain of 5.8 dB,low ECC<0.002 and high Diversity Gain(DG>9.98). | Muhammad Awais Shahid Bashir Awais Khan Muhammad Asif Nasim Ullah Hend I.Alkhammash | 2023 | Computers, Materials & Continua2023，，4： | 1 |
| 14 | Molecular Structure of (1-Benzyl-4-phenyl-1H-1,2,3-triazol-5-yl)(4-bromophenyl) methanone: A Combined Experimental and Theoretical Study显示文摘One-pot three component reaction was used to synthesize 1,4,5-trisubstituted 1,2,3-triazole(A) from the corresponding acid chloride, benzyl azide and 1-copper(I) phenylethyne. The molecular structure was determined by single-crystal X-ray analysis. The compound crystallizes in the orthorhombic space group Pbca, a = 14.9815(14), b = 9.6496(10), c = 25.528(2) A, Z = 8. Furthermore, crystal packing demonstrated a molecular wall-like structure based on supramolecular chains of A, stabilized by CH···O, CH···Br, N···C and CH···π interactions. Molecular geometry in the ground state has been determined by density functional theory(DFT) by B3LYP/6-311G* basis set and compared with the experimental data. The computed vibrational frequencies are compared with the experimental FT-IR data and frontier molecular orbital analyses were performed at the same level of theory. Theoretical parameters are in good agreement with the corresponding X-ray diffraction values. | MUHAMMAD Naeem Ahmed IFZAN Arshad WANG Bo SHAHID Hameed BILAL Ahmad Khan KHAWAJA Ansar Yasin MUHAMMAD Moazzam Naseer | 2014 | Chinese Journal of Structural Chemistry2014，33，12： | 1 |
| 15 | Measuring quality of experience for 360-degree videos in virtual reality显示文摘In recent years,we witness dramatic growing attention in immersive media technologies like 360-degree videos and virtual reality(VR).However,measuring the quality-of-experience(QoE)for 360-degree VR videos is not a trivial task.Streaming such videos to head mounted displays(HMDs)is extremely bandwidth-demanding when compared to traditional 2D videos.In HTTP adaptive streaming,QoE tends to deteriorate significantly during fluctuating network conditions,which results in various bitrate changes and causes multiple stalling events during playback.Thus,understanding how the human visual system perceives 360-degree video with the effect of stalling and different bitrate levels becomes inevitable.In this paper,we investigate the impact of stalling on users QoE under different bitrate levels and the interaction between stalling event and bitrate level for 360-degree videos in VR.To aim this,we first build a 360-degree videos database by encoding videos in three different bitrate levels(1,5,and 15 Mbps)with 4 K resolutions(3840×1920 pixels).We then simulate various stalling events in the videos and conduct a subjective experiment in a virtual reality environment to investigate the human responses.Finally,we use a Bayesian method to estimate and predict the QoE while measuring the quality drop owing to various stalling events and bitrate changes.Proposed solution and prediction results show a strong dependency between playback stalling and bitrate of 360-degree video in VR.Stalling always impacts the QoE of 360-degree videos,but the strength of this negative impact depends on the video bitrate level.The adverse effect of stalling events is more profound when bitrate level approaches to the high and low end,which is in close agreement with subjective opinion. | Muhammad Shahid ANWAR Jing WANG Asad ULLAH Wahab KHAN Sadique AHMAD Zesong FEI | 2020 | Science China(Information Sciences)2020，63，10： | 1 |
| 16 | Development of mutants with varying flowering times by targeted editing of multiple SVP gene copies in Brassica napus L.显示文摘Manipulation of flowering time to develop cultivars with desired maturity dates is fundamental in plant breeding.It is desirable to generate polyploid rapeseed(Brassica napus L.)germplasm with varying flowering time controlled by a few genes.In the present study,Bna SVP,a rapeseed homolog of the Arabidopsis SVP(Short Vegetative Phase)gene,was characterized and a set of mutants was developed using a CRISPR/Cas9-based gene-editing tool.A single construct targeting multiple sites was successfully applied to precisely mutate four copies of Bna SVP.The induced mutations in these copies were stably transmitted to subsequent generations.Homozygous mutants with loss-of-function alleles and free transgenic elements were generated across the four Bna SVP homologs.All mutant T_(1)lines tested in two environments(summer and winter growing seasons)showed early-flowering phenotypes.The decrease in flowering time was correlated with the number of mutated Bna SVP alleles.The quadruple mutants showed the shortest flowering time,with a mean decrease of 40.6%–50.7%in length relative to the wild type under the two growth conditions.Our study demonstrates the quantitative involvement of Bna SVP copies in the regulation of flowering time and provides valuable resources for rapeseed breeding. | Sunny Ahmar Yungu Zhai Huibin Huang Kaidi Yu Muhammad Hafeez Ullah Khan Muhammad Shahid Rana Abdul Samad Shahid Ullah Khan Olalekan Amoo Chuchuan Fan Yongming Zhou | 2022 | The Crop Journal2022，10，1： | 1 |
| 17 | Removal of toxic elements from aqueous environments using nano zero-valent iron-and iron oxide-modified biochar:a review显示文摘Biochar(BC)has gained attention for removal of toxic elements(TEs)from aqueous media;however,pristine biochar often exhibits low adsorption capability.Thus,various modification strategies in BC have been developed to improve its removal capability against TEs.Nanoscale zero-valent iron(nZVI)and iron oxides(FeOx)have been used as sorbents for TE removal.However,these materials are prone to agglomeration and also expensive,which make their usage limited for large-scale applications.The nZVI technical demerits could be resolved by the development of BC-based composite sorbents through the loading of nZVI or FeOx onto BC surface.Nano zero-valent iron modified BC(nZVIBC),FeOx-modified BC(FeOxBC)have attracted attention for their capability in removing pollutants from the aqueous phases.Nonetheless,a potential use of nZVIBC and FeOxBC for TE removal from aqueous environments has not been well-realized or reviewed.As such,this article reviews:(i)the preparation and characterization of nZVIBC and FeOxBC;(ii)the capacity of nZVIBC and FeOxBC for TE retention in line with their physicochemical properties,and(iii)TE removal mechanisms by nZVIBC and FeOxBC.Adopting nZVI and FeOx in BC increases its sporptive capability of TEs due to surface modifications in morphology,functional groups,and elemental composition.The combined effects of BC and nZVI,FeOx or Fe salts on the sorption of TEs are complex because they are very specific to TEs.This review identified significant opportunities for research and technol-ogy advancement of nZVIBC and FeOxBC as novel and effective sorbents for the remediation of TEs contaminated water. | Sabry M.Shaheen Ahmed Mosa Natasha Hamada Abdelrahman Nabeel Khan Niazi Vasileios Antoniadis Muhammad Shahid Hocheol Song Eilhann E.Kwon Jörg Rinklebe | 2022 | Biochar2022，4，1： | 1 |
| 18 | Green Synthesis of Silver Nanoparticles: Structural Features and In Vivo and In Vitro Therapeutic Effects against Helicobacter pylori Induced Gastritis显示文摘 | Muhammad Amin Sadaf Hameed Asghar Ali Farooq Anwar Shaukat Ali Shahid Imran Shakir Aqdas Yaqoob Sara Hasan Safyan Akram Khan Sajjad-ur-Rahman Imre Sovago | 2014 | Bioinorganic Chemistry and Applications2014，，： | 1 |
| 19 | Prevalence of Campylobacter species in meat, milk and other food commodities in Pakistan显示文摘 | Iftikhar Hussain Muhammad Shahid Mahmood Masood Akhtar Ahrar Khan | 2006 | Food Microbiology2006，，3： | 1 |
| 20 | Field evaluation of some bait additives against Indian crested porcupine(Hystrix indica)(Rodentia:Hystricidae)显示文摘This research study evaluated the effect of different additives on the bait consumption by Indian crested porcupine,a serious forest and agricultural pest,under field conditions.Different additives(saccharin,common salt,bone meal,fish meal,peanut butter,egg yolk,egg shell powder,yeast powder,mineral oil and coconut oil)at 2 and 5%each were tested for their relative preference,using groundnut-maize(1:1)as basic bait.All the additives were tested under a no-choice test pattern.For control tests,no additive was mixed with the basic bait.Saccharin at 5%concentration significantly enhanced the consumption of bait over the basic bait,while 2%saccharin supplemented bait resulted in a non-significant bait consumption.All other additives did not enhance the consumption of the bait material;rather,these worked as repellents.However,the repellency was lowest with the common salt,followed by egg yolk,egg shell powder,bone meal,peanut butter,mineral oil,fish meal and yeast powder,while coconut remained the most repellent compound.The present study suggested that groundnut-maize(1:1)supplemented with 5%saccharin was the preferred bait combination,and can be used with different rodenticides for the management of Indian crested porcupine. | Muhammad MUSHTAQ Iftikhar HUSSAIN Afsar MIAN Shahid MUNIR Irfan AHMED Abdul Aziz KHAN | 2013 | Integrative Zoology2013，8，3： | 0 |
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