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Ethnomedicinal values of some selected plant species in federal college of wildlife management

Asian Pacific Journal of Tropical Medicine 2009年第4期2卷 19-26页

作者： Osunsina IOO Ogunjinmi AA Ajani MO Department of Forestry and wildlife management University of AgriculturePMB 2240AbeokutaOgun StateNigeria Department of Forestry and wildlife management Faculty of AgricultureUniversity Of Port HarcourtPMB 5323Port HarcourtRivers StateNigeria federal college of wildlife management PMB 268New BussaNiger StateNigeria

Objective:The objective of this study was to identify the ethno-medicinal values of some selected plant species in federal college of wildlife management,New Bussa,Niger state,***:Three methods of data collection were employed:(1) reconnansance survey of the college Estate was carried out to identify some selected medicinal plants found within the area:(2) field observations alongside personal recognition of some of these plant species were carried out and(3) interview was also carried out in three villages around the college Estate to determine the plants being utilized by the *** villages were Kere,Labararu and Poppoi. The various uses of the identified plants and their parts used for the said purposes were *** hundred people were interviewed altogether in these *** information gathered on the medicinal uses of plants includes the type of plants,the part used to cure sickness,preparation of concoction,and the type of sickness *** data gathered were presented and analyzed using ***:The results revealed that the identified plant species were being used in curing various diseases such as dysentery,fever, stomach pains,cough,malaria,yellow fever,diarrhea,gonorrhea,pile,body pains and other ***: The study concluded that since the vast numbers of species in the study area possess medicinal values, there is need to conserve and protect the vegetation of the area from unsustainable exploitations which are the common features of vegetation in the surrounding land uses.

关键词： Ethnomedicinal values Plant species New Bussa Nigeria

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Impacts of Human Activities and Season on Species Diversity and Abundance of Butterflies in Mpanga Kipengere Game Reserve and Surrounding Farmlands, Tanzania

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Open Journal of Ecology 2024年第4期14卷 274-291页

作者： Privatus M. Kasisi Nsajigwa Mbije Paul Lyimo Departiment of Ecosystem Science and management College of Forest Wildlife and Tourism Sokoine University of Agriculture Morogoro Tanzania Departiment of wildlife management College of Forest Wildlife and Tourism Sokoine University of Agriculture Morogoro Tanzania

Maintaining natural habitats is crucial for the preservation of insects and other species that indicate environmental changes. However, the Mpanga/Kipengere Game Reserve and its surrounding farmlands are facing disturbance due to human activities, which is putting many wildlife species, particularly larger mammals, at risk. To determine the impact of human activities on butterfly species diversity and abundance in the reserve and its surrounding areas, we conducted a study from November 2021 to October 2023. We collected butterfly data using transect walks and baited traps in two habitat types. Our study yielded 2799 butterfly Individuals ranging in 124 species divided into five families habitat, season, and anthropogenic factors are significant environmental variables influencing species diversity and abundance of butterflies. Therefore, it’s important to protect habitat and dry-season water for the conservation of invertebrates such as butterflies. Our study findings provide essential information for ecological monitoring and future assessment of the Mpanga/Kipengere Game Reserve ecosystem health.

关键词： Mpanga Kipengere Game Reserve Species Diversity Habitat Butterflies Season Human Activities

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Spatial Distribution Pattern and Influencing Factors of Bed-and-breakfasts(B&Bs)from the Perspective of Urban-rural Differences:A Case Study of Jiaodong Peninsula,China

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Chinese Geographical Science 2024年第4期34卷 752-763页

作者： WANG Xinyue MA Qian management college Ocean University of ChinaQingdao 266100China

There are significant differences between urban and rural bed-and-breakfasts(B&Bs)in terms of customer positioning,economic strength and spatial *** identifying the differences in spatial characteristics and influencing factors of each type,is essential for creating urban and rural B&B agglomeration *** study used density-based spatial clustering of applications with noise(DBSCAN)and the multi-scale geographically weighted regression(MGWR)model to explore similarities and differences in the spatial distribution patterns and influencing factors for urban and rural B&Bs on the Jiaodong Peninsula of China from 2010 to *** results showed that:1)both urban and rural B&Bs in Jiaodong Peninsula went through three stages:a slow start from 2010 to 2015,rapid development from 2015 to 2019,and hindered development from 2019 to ***,urban B&Bs demonstrated a higher development speed and agglomeration intensity,leading to an increasingly evident trend of uneven development between the two sectors.2)The clustering scale of both urban and rural B&Bs continued to expand in terms of quantity and *** B&B clusters characterized by a limited number,but a higher likelihood of transitioning from low-level to high-level *** the number of rural B&B clusters steadily increased over time,their clustering scale was comparatively lower than that of urban B&Bs,and they lacked the presence of high-level clustering.3)In terms of development direction,urban B&B clusters exhibited a relatively stable pattern and evolved into high-level clustering centers within the main urban ***,rural B&Bs exhibited a more pronounced spatial diffusion effect,with clusters showing a trend of multi-center development along the coastline.4)Transport emerged as a common influencing factor for both urban and rural B&Bs,with the density of road network having the strongest explanatory power for their spatial *** terms of differences,populati

关键词： urban-rural bed-and-breakfasts(B&Bs) spatiotemporal evolution density-based spatial clustering of applications with noise(DBSCAN)model multi-scale geographically weighted regression(MGWR) Jiaodong Peninsula China

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Energy exchange between charged relativistic fluids in f(T) gravity

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Communications in Theoretical Physics 2024年第10期76卷 108-120页

作者： Z Yousaf U A Khokhar Nasser Bin Turki T Suzuki Department of Mathematics University of the Punjab Quaid-i-Azam Campus Department of Mathematics College of Science King Saud University Department of Regional management Faculty of Management Fukushima College

This study focuses on the effects of a polytropic fluid on a charged gravitational source within f(T) gravity, where T is the torsion scalar. We investigate how the electromagnetic field affects the flow of energy in spherically symmetric and static celestial objects that contain relativistic fluids. By using the gravitational decoupling technique, we analyze the effects of polytropic fluid on the dynamics of the gravitational source, accompanied by the matching of the interior geometry with an exterior at the hypersurface Σ. Finally, with the help of the Tolman ⅡV solution, we observe the conduct of energy conditions with the existence of charge using f(T)field equations and got the intended outcomes.

关键词： anisotropy complexity energy exchange hydrodynamics self-gravitating systems

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DBN-GABP model for estimation of aircraft wake vortex parameters using Lidar data

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Chinese Journal of Aeronautics 2024年第9期37卷 347-368页

作者： Zhiqiang WEI Tong LU Runping GU Fei LIU college of Air Traffic management Civil Aviation University of ChinaTianjin 300300China

Aircraft wake turbulence is an inherent outcome of aircraft flight,presenting a substan-tial challenge to air traffic control,aviation safety and operational *** upon data obtained from coherent Doppler Lidar detection,and combining Dynamic Bayesian Networks(DBN)with Genetic Algorithm-optimized Backpropagation Neural Networks(GA-BPNN),this paper proposes a model for the inversion of wake vortex *** the wake vortex flow field simulation analysis,the wind and turbulent environment were initially superimposed onto the simulated wake velocity ***,Lidar-detected echoes of the velocity field are simulated to obtain a data set similar to the actual situation for model *** the case study validation,real measured data underwent preprocessing and were then input into the established *** allowed us to construct the wake vortex characteristic parameter inversion *** final results demonstrated that our model achieved parameter inversion with only minor *** a practical example,our model in this paper significantly reduced the mean square error of the inverted velocity field when compared to the traditional *** study holds significant promise for real-time monitoring of wake vortices at airports,and is proved a crucial step in developing wake vortex interval standards.

关键词： Air traffic control Wake vortex flow field simulation Lidar echo simulation DBNmodel GA-BP model Wakevortex characteristic parameter inversion model

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Dual carbon goal and agriculture in China:Exploring key factors influencing farmers’behavior in adopting low carbon technologies

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Journal of Integrative Agriculture 2024年第9期23卷 3215-3233页

作者： Jinpeng Zou Lulin Shen Fang Wang Hong Tang Ziyang Zhou college of management Sichuan Agricultural UniversityChengdu 611130China

Identifying the factors influencing farmers’adoption of low-carbon technologies(FA)and understanding their impacts are essential for shaping effective agricultural policies amied at emission reduction and carbon sequestration in *** study employs a meta-analysis of 122 empirical studies,delves into 23 driving factors affecting FA and addresses the inconsistencies present in the existing *** systematically examine the effect size,source of heterogeneity,and time-accumulation effect of the driving factors on *** find that significant heterogeneity in the factors influencing FA,except for farming experience,sources of heterogeneity from the survey zone,methodology model,technological attributes,report source,financial support,and the sampling ***,age,farming experience,and adoption cost negatively correlate with *** contrast,educational level,health status,technical training,economic and welfare cognition,land contract,soil quality,terrain,information accessibility,demonstration,government promotion,government regulation,government support,agricultural cooperatives member,peer effect,and agricultural income ratio demonstrate a positive ***,demonstration and age show a particularly strong ***,the effect of demonstration,age,economic and welfare cognition,farming experience,land contract,soil quality,information accessibility,government promotion,and support,as well as agricultural cooperative membership and peer effects on FA,are generally stable but exhibit varying degrees of attenuation over *** effect of village cadre,family income,farm scale,gender,health status,technical training,and off-farm work on FA show notable temporal shifts and maintain a weak correlation with *** study contributes to shaping China’s current low-carbon agriculture policies across various *** encourages policymakers to comprehensively consider the stability of key factors,other potential factors,technologic

关键词： farmers influencing factors low-carbon technology adoption meta-analysis

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Response of Indonesian mineral supply to global renewable energy generation:Analysis based on gravity model approach

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Geoscience Frontiers 2024年第4期15卷 383-396页

作者： Md.Monirul Islam Kazi Sohag Suleiman O.Mamman Heyvon Herdhayinta Graduate School of Economics and management Ural Federal UniversityYekaterinburgRussia Bangladesh Institute of Governance and management(BIGM) University of DhakaBangladesh Department of Accounting Faculty of Economics and BusinessUniversitas Gadjah MadaIndonesia

The captivating surge of energy transitions in the major industrialized nations has elevated the global demand for critical *** demand pattern has enabled mineral-abundant emerging economies like Indonesia to enter the international market by exporting mineral ***,we investigate the Indonesian mineral export supply's response to the renewable energy production of the 18 clean energy-generating countries,considering crude oil and mineral prices,exchange rates,and economic growth of the resource and importer countries from 1990 to *** doing so,we apply the Poisson Pseudo-maximum Likelihood(PPML)approach to measuring the panel gravity model for mineral exports in *** a result,we observe a significant response of Indonesia's mineral export supply to the renewable energy generation of the 18 mineral importing ***,mineral and crude oil prices are insignificant,whereas the importer countries'exchange rates and income growth positively influence Indonesia's mineral export ***,Indonesia's income factor negatively affects its mineral export ***,we validate our results using an alternative estimator,the Driscoll-Kraay robust standard error estimation ***,our findings suggest implementing Indonesia's existing mineral policy to produce finished mineral goods to materialize the worldwide vision of energy transitions toward a crossroad of net-zero emissions by the middle of the current century.

关键词： Mineral export supply Energy transformation Gravity model PPML approach Indonesia Renewable energy-producing countries

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Predicting carbon storage of mixed broadleaf forests based on the finite mixture model incorporating stand factors,site quality,and aridity index

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Forest Ecosystems 2024年第3期11卷 276-286页

作者： Yanlin Wang Dongzhi Wang Dongyan Zhang Qiang Liu Yongning Li college of Forestry Hebei Agricultural UniversityBaoding071001China college of Economics and management Hebei Agricultural UniversityBaoding071001China

The diameter distribution function(DDF)is a crucial tool for accurately predicting stand carbon storage(CS).The current key issue,however,is how to construct a high-precision DDF based on stand factors,site quality,and aridity index to predict stand CS in multi-species mixed forests with complex *** study used data from70 survey plots for mixed broadleaf Populus davidiana and Betula platyphylla forests in the Mulan Rangeland State Forest,Hebei Province,China,to construct the DDF based on maximum likelihood estimation and finite mixture model(FMM).Ordinary least squares(OLS),linear seemingly unrelated regression(LSUR),and back propagation neural network(BPNN)were used to investigate the influences of stand factors,site quality,and aridity index on the shape and scale parameters of DDF and predicted stand CS of mixed broadleaf *** results showed that FMM accurately described the stand-level diameter distribution of the mixed *** and *** forests;whereas the Weibull function constructed by MLE was more accurate in describing species-level diameter *** combined variable of quadratic mean diameter(Dq),stand basal area(BA),and site quality improved the accuracy of the shape parameter models of FMM;the combined variable of Dq,BA,and De Martonne aridity index improved the accuracy of the scale parameter *** to OLS and LSUR,the BPNN had higher accuracy in the re-parameterization process of ***,LSUR,and BPNN overestimated the CS of *** but underestimated the CS of *** in the large diameter classes(DBH≥18 cm).BPNN accurately estimated stand-and species-level CS,but it was more suitable for estimating stand-level CS compared to species-level CS,thereby providing a scientific basis for the optimization of stand structure and assessment of carbon sequestration capacity in mixed broadleaf forests.

关键词： Weibull function Finite mixture model Linear seemingly unrelated regression Back propagation neural network Carbon storage

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Carbon Abatement Cost-Sharing Strategy for Electric Power Sector Based on Incentive and Subsidy Mechanisms

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Energy Engineering 2024年第10期121卷 2907-2935页

作者： Hui Wang Wen Wang Wenhui Zhao college of Economics and management Shanghai University of Electric PowerShanghai200090China

The green and low carbon transition and development of the electricity industry is the most crucial task in realizing the“dual-carbon target”,and it is urgent to explore the incentive and subsidy mechanism to promote green electricity consumption and the cost-sharing strategy of carbon reduction,to alleviate the pressure of carbon abatement cost of each subject of the electricity supply *** this background,this paper takes into account the low-carbon subsidies provided by the government and the incentive subsidies for users,and studies the optimal decision-making of each subject in the electricity supply chain,so that each of them can obtain the optimal profit and achieve carbon emission reduction at the same ***,taking into account the direct power purchase mode of large users and the electricity-selling companies emerging after the reform of the power sales side,we have established a cooperative mechanism for sharing the cost of carbon emission reduction in the electricity supply chain and clarified the relationship between the supply and demand of electricity among the main ***,considering government low-carbon subsidies and user incentive subsidies,the optimal decisionmaking model is established under two scenarios of decentralized and centralized cooperative games in the supply chain,respectively,with the objective of maximizing profits and carbon reduction *** for the optimal proportion of carbon abatement costs shared by each participant in the electricity supply chain in achieving game ***,we analyze the role of the government’s low-carbon subsidies,users’incentive subsidies,and other factors on the profit and carbon reduction effect of the electricity industry through the example analysis and further analyze the impact of carbon abatement cost-sharing measures to provide recommendations for the electricity industry to realize low-carbon abatement and make decisions.

关键词： Electricity supply chain incentive subsidy mechanisms carbon abatement cost-sharing green electricity consumption

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The impact of supply chain resilience on customer satisfaction and financial performance:A combination of contingency and configuration approaches

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Journal of management Science and Engineering 2024年第1期9卷 38-52页

作者： Baofeng Huo Dan Li Minhao Gu college of management and Economics Tianjin UniversityTianjin300072China

Supply chain resilience(SCR)refers to a supply chain's(SC's)ability to recover from disruptions timely and *** study uses a combination of contingency and configuration approaches to examine the direct and contingent relationships between SCR dimensions(i.e.,internal,supplier,and customer resilience)and *** analyzes survey data collected from 206 Chinese *** results show that the three SCR dimensions are positively related to customer satisfaction,whereas customer resilience has no direct contribution to financial *** resilience moderates the relationship between supplier resilience and performance(negative for customer satisfaction and positive for financial performance).A taxonomy for SCR was developed based on internal,supplier,and customer resilience,providing a holistic perspective for examining the performance discrepancies among four different SCR patterns:high externalleaning,high uniform,medium uniform,and low *** findings offer insights for managers in building SCR from the crisis-management process.

关键词： Supply chain resilience Risk management Taxonomy Performance China

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