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Stem taper functions for Betula platyphylla in the Daxing’an Mountains,northeast China

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Journal of Forestry Research 2021年第2期32卷 529-541页

作者： Muhammad Khurram shahzad Amna Hussain Harold EBurkhart Fengri Li Lichun Jiang Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education School of ForestryNortheast Forestry UniversityHarbin 150040People’s Republic of China Department of Forest Resources and Environmental Conservation(MC 0324) Virginia Tech310 West Campus DriveBlacksburgVA 24061USA

Accurate prediction of stem diameter is an important prerequisite of forest *** this study,an appropriate stem taper function was developed for upper stem diameter estimation of white birch(Betula platyphylla Sukaczev)in ten sub-regions of the Daxing’an Mountains,northeast *** commonly used taper functions were assessed using a diameter and height dataset comprising 1344 trees.A first-order continuous-time error structure accounted for the inherent *** segmented model of Max and Burkhart(For Sci 22:283–289,***://***/10.1093/fores tscie nce/22.3.283)and the variable exponent taper function of Kozak(For Chron 80:507–515,***://***/10.5558/tfc80507-4)described the data *** to its lower multicollinearity,the Max and Burkhart(1976)model is recommended for diameter estimation at specific heights along the stem for the ten *** comparison,the Max and Burkhart(1976)model was refitted using nonlinear mixed-effects ***-effects models would be used only when additional upper stem diameter measurements are available for *** in region-specific taper functions were indicated by the method of the non-linear extra sum of ***,the particular taper function should be adjusted accordingly for each sub-region in the Daxing’an Mountains.

关键词： White birch Taper function Multicollinearity Autocorrelation Nonlinear regression

Saline-Alkali Tolerance in Rice: Physiological Response, Molecular Mechanism, and QTL Identification and Application to Breeding

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Rice science 2022年第5期29卷 412-434页

作者： Ratan Kumar GANAPATI shahzad Amir NAVEED Sundus ZAFAR WANG Wensheng XU Jianlong Institute of Crop Sciences National Key Facility for Crop Gene Resources and Genetic ImprovementChinese Academy of Agricultural SciencesBeijing 100081China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China

Salinity-alkalinity is incipient abiotic stress that impairs plant growth and ***(Oryza sativa)is a major food crop greatly affected by soil salinity and alkalinity,requiring tolerant varieties in the saline-alkali prone *** the molecular and physiological mechanisms of saline-alkali tolerance paves the base for improving saline-alkali tolerance in rice and leads to progress in *** review illustrated the physiological consequences,and molecular mechanisms especially signaling and function of regulating genes for saline-alkali tolerance in rice *** also discussed QTLs regarding saline-alkali tolerance accordingly and ways of deployment for *** efforts are needed to identify and utilize the identified QTLs for saline-alkali tolerance in rice.

关键词： saline-alkali tolerance physiological mechanism molecular mechanism marker-assisted backcrossing rice

Functional response of Chrysoperla carnea （Neuroptera： Chrysopidae） to Helicoverpa armigera （Lepidoptera： Noctuidae） Effect of prey and predator stages

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Insect Science 2011年第2期18卷 217-224页

作者： Mehdi Hassanpour Jafar Mohaghegh shahzad Iranipour Gadir Nouri-Ganbalani Annie Enkegaard Department of Plant Protection Faculty of Agriculture University of Mohaghegh Ardabili Ardabil Iranian Research Institute of Plant Protection (IRIPP) Tehran Department of Plant Protection Faculty of Agriculture University of Tabriz Tabriz Iran Department of Integrated Pest Management Research Centre Flakkebjerg Faculty of Agricultural Sciences Aarhus University Slagelse Denmark

Understanding predator-prey interactions has a pivotal role in biological control programs. This study evaluated the functional response of three larval instars of the green lacewing, Chrysoperla carnea （Stephens）, preying upon eggs and first instar larvae of the cotton bollworm, Helicoverpa armigera Hubner. The first and second instar larvae of C. carnea exhibited typeⅡ functional responses against both prey stages. However, the third instar larvae of C. carnea showed a type II functional response to the first instar larvae of H. armigera, but a typeⅢ functional response to the eggs. For the first instar larvae of C. carnea, the attack rate on H. armigera eggs was significantly higher than that on the larvae, whereas the attack rate of the second instar C. carnea on H. armigera larvae was significantly higher than that on the eggs. For the third instar larvae of C. carnea, the attack rate on the larvae was 1.015±0.278/h, and the attack coefficient on the eggs was 0.036 ±0.005. The handling times of the third instar larvae on larvae and eggs were 0.087 ± 0.009 and 0.071 ± 0.001 h, respectively. The highest predation rate was found for the third instar larvae of C. carnea on H. armigera eggs. Results of this study revealed that the larvae of C. carnea, especially the third instar, had a good predation potential in controlling H. armigera eggs and larvae. However, for a comprehensive estimation of the bio- control abilities of C. carnea toward H, armigera, further field-based studies are needed.

关键词： biological control Chrysoperla carnea Helicoverpa armigera predatorprey interactions

Hot Deformation Behavior of an Ultra-High-Strength Fe–Ni–Co-Based Maraging Steel

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Acta Metallurgica Sinica(English Letters) 2019年第9期32卷 1161-1172页

作者： Le Zhang Wei Wang M. Babar shahzad Yi-Yin Shan Ke Yang Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Hot processing behavior of an ultra-high-strength Fe–Ni–Co-based maraging steel was studied in temperature range of 900–1200℃and strain rate range of 0.001–10 s^-*** processing parameters and optimum hot working window were characterized via flow stress analysis,constitutive equation construction,hot processing map calculation and microstructure evolution,*** strain value for dynamic recrystallization was determined through theoretical mathematical differential method:the inflection point ofθ–σand-αθ/ασ-σ*** was found that the flow stress increased with the decrease in deformation temperature and increase in the strain *** power dissipation maps in the strain range of 0.1–0.6 were entirely similar with the tendency of contour lines which implied that strain had no strong effect on the dissipation ***,the instability maps showed obvious strain sensitivity with increasing strain,which was ascribed to the flow localization and *** optimized hot processing window of the experimental steel was obtained as 1100–1200℃/0.001–1 s^-1 and 1000–1100℃/0.001–0.1 s^-1,with the efficiency range of 20–40%.Owing to high Mo content in the experimental steel,high dynamic activation energy,Q=439.311 kJ mol^-1,was achieved,indicating that dynamic recrystallization was difficult to occur in the hot deformation process,which was proved via microstructure analysis under different hot deformation conditions.

关键词： Maraging steel Hot working Dynamic recrystallization Constitutive equation Hot processing map

Role of authentic leadership and personal mastery in predicting employee creative behavior:a self-determination perspective

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Frontiers of Business Research in China 2021年第1期15卷 108-123页

作者： Adnan Fateh Norizah Mustamil Fakhar shahzad University of Malaya Kuala LumpurMalaysia Jiangsu University ZhenjiangJiangsuChina

Personality dispositions and their role in inducing employee creative behavior are well documented in the ***,much is unexplored about the collective and relative contribution of personality orientations and environmental factors in explaining creative *** study used a framework based on selfdetermination theory(SDT)to measure the combined and relative contribution of personal mastery orientation and authentic leadership in predicting employee creative behavior as mediated by autonomous motivation.A self-reported survey was conducted among software developers working in software *** results of the study show that both personal mastery and authentic leadership are significant predictors of employee creative *** addition,autonomous motivation significantly mediates the relationship between personal mastery,authentic leadership,and creative *** findings of the study lend support to the combined effect of personality orientation and environmental factors in predicting employee creative behavior and test the SDT framework’s efficacy in predicting creative behavior.

关键词： Authentic leadership Autonomous motivation Employee creative behavior Personal mastery Self-determination theory

Heat transfer analysis of MHD rotating flow of Fe_(3)O_(4)nanoparticles through a stretchable surface

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Communications in Theoretical Physics 2021年第7期73卷 27-41页

作者： Faisal shahzad Wasim Jamshed Tanveer Sajid Kottakkaran Sooppy Nisar Mohamed R Eid Department of Mathematics Capital University of Science and Technology(CUST)Islamabad44000Pakistan Department of Mathematics College of Arts and SciencesPrince Sattam bin Abdulaziz UniversityWadi AldawaserSaudi Arabia Department of Mathematics Faculty of ScienceNew Valley UniversityAl-KhargaAl-Wadi Al-Gadid72511 Egypt Department of Mathematics Faculty of ScienceNorthern Border UniversityArar1321Saudi Arabia

The flow of a magnetite-H_(2)O nanofluid has been considered among two rotating surfaces,assuming porosity in the upper ***,the lower surface is considered to move with variable speed to induce the forced *** as well as Coriolis forces impacting on the rotating fluid are likewise taken into *** conversions are employed for the transformation of the governing partial-differential equations into a group of non-dimensional ordinary-differential *** solution of the converted expressions is gained by means of the shooting *** is theoretically found that the nanofluid has less skin friction and advanced heat transport rate when compared with the base *** effect of rotation causes the drag force to elevate and reduces the heat transport *** are portrayed to reveal the impact of injection/suction.

关键词： rotating frame magnetite-water nanofluid flow magnetic field stretching sheet

Financial inclusion and carbon emissions in Asia:Implications for environmental sustainability

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Economic and Political Studies 2024年第1期12卷 88-104页

作者： shahzad Hussain Tanveer Ahmad Sabeeh Ullah Ajid Ur Rehman Syed Jawad Hussain shahzad Department of Business Administration Rawalpindi Women UniversityRawalpindiPakistan Institute of Business Studies Kohat University of Science and TechnologyKohatPakistan Institute of Business and Management Sciences Faculty of Management and Computer SciencesThe University of AgriculturePeshawarPakistan NUST Business School National University of Sciences and TechnologyIslamabadPakistan Finance Control and Law DepartmentMontpellier Business SchoolMontpellierFrance

This study explores how carbon emissions are affected by financial *** a balanced panel data set of 26 Asian countries,we compute a composite index,through the principal component analysis(PCA)technique,of financial inclusion based on a set of attributes related to financial *** main analysis also delineates the subsamples of developed and developing Asian *** results reveal a long(short)-run positive(negative)impact of financial inclusion on carbon emissions across the Asian *** finding is also true for the developed country subsample,implying nonlinearity in shortand long-run *** the developing countries,a more pronounced long-run positive impact compared to developed countries is ***,the pairwise causality test results indicate the existence of bi-directional causality between financial inclusion and carbon *** findings have important policy implications,especially in the context of the strategic integration of financial inclusion and climate change strategies.

关键词： Financial inclusion CO_(2) emissions climate change sustainable development Asian countries

Clinical applications of stem cell-derived exosomes

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Signal Transduction and Targeted Therapy 2024年第2期9卷 621-651页

作者： Fei Tan Xuran Li Zhao Wang Jiaojiao Li Khawar shahzad Jialin Zheng Department of ORL-HNS Shanghai Fourth People’s Hospitaland School of MedicineTongji UniversityShanghaiChina Plasma Medicine and Surgical Implants Center Tongji UniversityShanghaiChina The Royal College of Surgeons in Ireland DublinIreland The Royal College of Surgeons of England LondonUK Center for Translational Neurodegeneration and Regenerative Therapy Tongji Hospital affiliated to Tongji University School of MedicineShanghaiChina Shanghai Frontiers Science Center of Nanocatalytic Medicine Tongji UniversityShanghaiChina

Although stem cell-based therapy has demonstrated considerable potential to manage certain diseases more successfully than conventional surgery,it nevertheless comes with inescapable drawbacks that might limit its clinical *** to stem cells,stem cell-derived exosomes possess numerous advantages,such as non-immunogenicity,non-infusion toxicity,easy access,effortless preservation,and freedom from tumorigenic potential and ethical *** can inherit similar therapeutic effects from their parental cells such as embryonic stem cells and adult stem cells through vertical delivery of their pluripotency or *** a thorough search and meticulous dissection of relevant literature from the last five years,we present this comprehensive,up-to-date,specialty-specific and disease-oriented review to highlight the surgical application and potential of stem cell-derived *** derived from stem cells(e.g.,embryonic,induced pluripotent,hematopoietic,mesenchymal,neural,and endothelial stem cells)are capable of treating numerous diseases encountered in orthopedic surgery,neurosurgery,plastic surgery,general surgery,cardiothoracic surgery,urology,head and neck surgery,ophthalmology,and obstetrics and *** diverse therapeutic effects of stem cells-derived exosomes are a hierarchical translation through tissue-specific responses,and cell-specific molecular signaling *** this review,we highlight stem cell-derived exosomes as a viable and potent alternative to stem cell-based therapy in managing various surgical *** recommend that future research combines wisdoms from surgeons,nanomedicine practitioners,and stem cell researchers in this relevant and intriguing research area.

关键词： viable stem capable

Ultra-thin Laminated Metal Composites with Ultra-high Strength and Excellent Soft Magnetic Properties

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Acta Metallurgica Sinica(English Letters) 2020年第3期33卷 385-390页

作者： Le Zhang Wei Wang Xiaofei Xiao M.Babar shahzad Yiyin Shan Ke Yang Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Structural metallic materials with excellent functional performance and lightweight features have always been the goal of material scientists’ *** this work,laminated metal composites of different thicknesses(less than 0.4 mm) composed of structural materials with great differences in deformation ability were successfully fabricated via a novel processing ***-high strength and excellent soft magnetic properties were combined perfectly in the ultra-thin and super-light laminated metal composite strips due to unique structural design and essential attributes of the initial *** results emphasize the significant potential application value of the ultra-thin laminated metal composites in the field of structural and functional integration.

关键词： Laminated metal composites Ultra-high strength Ultra-thin Soft magnetic property Maraging steel