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This book brings together the latest research results of air quality assessment standards and sustainable development in developing countries. The content is full and the discussion is vivid. These articles are suitable for students and researchers at all levels seeking to understand the status of air pollution, governance standards, and governance effects in developing countries.

greenhouse gases --- collaborative filtering --- Euclid approach degree method --- hierarchical linear model --- pollution --- adaptive clustering analysis --- evolutionary game --- fuzzy comprehensive evaluation --- spatial and temporal difference --- livestock --- AQI --- rough set --- air pollutant --- fuzzy optimization model --- air quality --- Beijing-Tianjin-Hebei region --- functional ANOVA --- environmental supervision --- environmental governance --- primary pollutants --- emission inventory --- N) model --- Beijing --- sustainable development --- PM2.5 concentrations --- environmental target-setting --- entropy weight method --- comprehensive pollution index analysis --- attribute reduction --- functional principal component analysis --- AQI indicators --- Jiangsu province --- vehicle --- haze --- air quality evaluation standards --- China --- interval grey number --- PM2.5 --- carbon emissions --- linear time-varying GM(1 --- forecasting --- grey correlation analysis --- measurement and environment --- performance --- whistleblowing --- relevance analysis --- PSR Model --- wind power development --- air pollution --- spatial and temporal distribution characteristics

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This book on the sustainable use of soils and water addressed a variety of issues related to the utopian desire for environmental sustainability and the deviations from this scene observed in the real world. Competing interests for land are frequently a factor in land degradation, especially where the adopted land uses do not conform with the land capability (the natural use of soil). The concerns of researchers about these matters are presented in the articles comprising this Special Issue book. Various approaches were used to assess the (im)balance between economic profit and environmental conservation in various regions, in addition to potential routes to bring landscapes back to a sustainable status being disclosed.

environmental and economic changes --- overexploitation --- stream flow downscaling --- Recharge --- Institutions --- evaluation --- geo hazards --- marginal land resources --- water resources --- contributions --- land use change --- comprehensive land carrying capacity --- land eco-security --- scale effects --- river basin --- Ghana --- urbanization --- groundwater recharge --- MicroLEIS DSS --- multiple stresses --- forest --- land use conflicts --- soil --- analytic hierarchy process --- heavy metal pollution assessment --- recharge --- environmental degradation --- spatial variation --- debris flow waste-shoal land --- Lankao county --- encounters of interests --- territorial development --- driving forces analysis --- land use policy --- climate conditions --- time series analysis --- arable soil --- urban area --- multi-criterion comprehensive evaluation --- Land Use --- agricultural and livestock products --- evapotranspiration --- hydrological processes --- Trnava district --- macromodel DNS/SWAT --- central Asia --- CA-Markov --- integrative landscape management --- Land use change --- land use and transformation --- weight --- Contemporary Yellow River Delta --- conjunctive water resources management --- set pair theory --- sustainability --- karst aquifer --- withdrawal of agricultural land --- sustainable development --- SWAT --- water resource management --- water footprint --- land-use planning --- Ecosystem service value --- Penman–Monteith equation --- cloud model --- groundwater flow field --- standard deviation --- temporal stability --- landscape as geosystem --- Gross Domestic Product --- geology --- territorial factors --- agriculture --- multi-dimension --- Groundwater --- conflicts --- Green GDP --- temporal-spatial variations --- relief --- recharge zones --- groundwater depth --- Nitrate Vulnerable Zones --- hydrologic modeling --- Managed Aquifer --- soil reclamation --- nitrogen --- discrete wavelet transform --- legislative factors --- developmental factors --- ungauged catchment --- rural households’ behaviors --- arid region --- land use/cover change --- spatialization --- sustainable agriculture

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This book is a compilation of original research articles that apply a variety of techniques to identify and evaluate water resource management policies. These papers cover a wide range of topics and methodologies applied across the world, from a local to a continental scope. They illustrate open challenges in water resource management, such as the quantitative assessment of policy impacts, trade-off analyses, understanding the water–energy–food–environment nexus, collaborative model development, stakeholder engagement, formalizing social interactions, or improving the theoretical understanding of complex adaptive systems. Therefore, this book is a representation of research areas that have emerged from the origins of water resource systems analysis, seeking to improve the way in which water policy is formulated and implemented.

climate change --- water resources --- water availability --- uncertainty --- WAAPA model --- Western Europe --- water quality --- background pollutants --- export coefficient model --- chemical oxygen demand --- ammonia nitrogen --- water resource accessibility --- spatial pattern --- coupling coordination degree --- water resource management --- Southwest China --- pump efficiency --- water distribution systems --- water supply systems --- optimization --- design policies --- design --- BMPs --- Revised GWLF --- NSGAII --- hydrological dam safety --- initial reservoir level --- maximum conservation level --- water conservation volume --- flood control volume --- yield reliability --- regular operation --- stochastic methodology --- water management --- resources --- system dynamics --- drought management --- drought impacts --- urban public services --- inter-administrative cooperation --- border studies --- internal borders --- river municipalities --- freshwater health --- river chief system --- ecological integrity --- social services --- water governance --- national standard --- risk assessment --- water-saving --- set pair analysis --- China --- fluvial ecosystems --- hydropeaking --- InSTHAn tool --- short-term flow regimes --- subdaily flows --- sustainable river management --- droughts --- hydrological risk --- agri-food sector --- event study --- financial markets --- BOVESPA --- stormwater --- industrial facilities --- run off --- self-reported data --- multifunctional water source area --- ecotourism, people with different stakeholders --- balanced decision-making --- sponge city --- fuzzy comprehensive evaluation method --- water resource carrying capacity --- gray correlation analysis --- multiple linear regression models --- water environment capacity --- reservoir performance --- water resources systems --- participatory modeling --- river basin planning --- watershed management --- water scarcity --- water conflicts --- Robust Decision Support --- WEAP --- Integrated Water Resources Management --- Bolivia --- n/a

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This volume consists of a collection of 14 accepted submissions (including several invited feature articles) to the Special Issue of MDPI's journal Symmetry on the general subject area of integral transformations, operational calculus and their applications from many different parts around the world. The main objective of the Special Issue was to gather review, expository, and original research articles dealing with the state-of-the-art advances in integral transformations and operational calculus as well as their multidisciplinary applications, together with some relevance to the aspect of symmetry. Various families of fractional-order integrals and derivatives have been found to be remarkably important and fruitful, mainly due to their demonstrated applications in numerous diverse and widespread areas of mathematical, physical, chemical, engineering, and statistical sciences. Many of these fractional-order operators provide potentially useful tools for solving ordinary and partial differential equations, as well as integral, differintegral, and integro-differential equations; fractional-calculus analogues and extensions of each of these equations; and various other problems involving special functions of mathematical physics and applied mathematics, as well as their extensions and generalizations in one or more variables.

Stancu-type Bernstein operators --- Bézier bases --- Voronovskaja-type theorems --- modulus of continuity --- rate of convergence --- bivariate operators --- approximation properties --- statistical convergence --- P-convergent --- statistically and relatively modular deferred-weighted summability --- relatively modular deferred-weighted statistical convergence --- Korovkin-type approximation theorem --- modular space --- convex space --- N-quasi convex modular --- N-quasi semi-convex modular --- vehicle collaborative content downloading --- fuzzy comprehensive evaluation --- VANET --- delay differential equations --- integral operator --- periodic solutions --- subordinations --- exponential function --- Hankel determinant --- fractional differential equations with input --- Mittag-Leffler stability --- left generalized fractional derivative --- ρ-Laplace transforms --- functional integral equations --- Banach algebra --- fixed point theorem --- measure of noncompactness --- Geometric Function Theory --- q-integral operator --- q-starlike functions of complex order --- q-convex functions of complex order --- (δ,q)-neighborhood --- meromorphic multivalent starlike functions --- subordination --- univalent function --- symmetric differential operator --- unit disk --- analytic function --- analytic functions --- conic region --- Hadamard product --- differential subordination --- differential superordination --- generalized fractional differintegral operator --- Convex function --- Simpson’s rule --- differentiable function --- weights --- positive integral operators --- convolution operators --- n/a --- Bézier bases --- Simpson's rule

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This collection that is based on the Special Issue contains 37 high-quality, rigorously peer-reviewed, cutting-edge pieces of original research applying a multi-disciplinary academic approach to study how to improve environment quality and healthy living in contemporary and future urban environments. This multidisciplinary collection helps to disseminate and communicate scientific knowledge and impactful discoveries of how to make healthy cities available to researchers, academics, and the general public globally.

Humanities --- Social interaction --- urban sprawl --- physical health --- mental health --- Smog Free Tower --- air purification --- housing price --- moderating effect --- traffic convenience --- urban resilience --- spatiotemporal differentiation --- ESDA --- geographical detector model --- YRB --- social capital --- social participation --- volunteering --- urban China --- urban governance --- Chinese national scenic areas --- tourism economy --- time-limited rectification --- pilot free trade zones --- green total factor productivity --- green development --- difference-in-differences --- quasi-natural experiment --- land use evolution --- land ecological security --- AHP-FCE model --- evaluation --- China --- business environment --- FDI --- BRI countries --- status elevation the global value chain --- pilot free trade zone --- port --- green TFP --- environmental constraints --- regional heterogeneity --- air pollution --- health shocks --- labor mobility --- mediating effect --- threshold effect --- production-living-ecology --- spatial transformation characteristics --- spatial conflicts --- urban agglomeration --- carbon emissions --- Tapio decoupling --- LMDI model --- provincial level --- low-carbon economy --- physical inactivity --- prolonged sitting --- unhealthy diet --- sports facilities --- street greenery --- spatial accessibility --- medical system --- multi-tiered two-step floating catchment area (MT2SFCA) method --- equity --- healthcare --- Hu Line of land --- “production-living-ecology” coordination --- spatial heterogeneity --- ESDA-GWR --- COVID-19 --- mask --- willingness to pay --- protection motivation theory --- contingent value method --- urban --- health impact assessment --- bibliometric analysis --- CiteSpace --- knowledge mapping --- disaster-preventive migration (DPM) --- social stability risk --- fuzzy comprehensive evaluation (FCE) --- ethnic minority area --- green finance --- ecological environment --- coupling coordination rate --- spatiotemporal evolution --- driving factor --- environmental equality --- guanxi network --- pig farming pollution --- cost and benefit sharing --- technological innovation --- coupling coordination --- green economy --- aging migration --- housing tenure --- social integration --- Beijing --- environmental pollution control investment efficiency --- three-stage DEA --- super-efficient SBM --- Global-Malmquist-Luenberger index --- regional differences --- digital financial inclusion --- green innovation --- financing constraints --- life cycle --- carbon emissions trading --- total factor productivity of agricultural enterprises --- double difference --- policy mix --- policy design --- pandemic management --- policy outcomes --- compound crisis --- urban sustainability --- healthy cities --- projects --- risks --- expert evaluation --- fuzzy sets --- European Green Deal --- Industry 5.0 --- decision-making --- transport --- medical infrastructure --- healing and therapeutic design --- blockchain --- building information modeling (BIM) --- landscape information modeling (LIM) --- city information modeling (CIM) --- art therapy --- sustainable development --- non-fungible token (NFT) --- Health Metaverse --- workplace --- avoidance behavior --- public health --- regression discontinuity design --- migration intention --- high human capital --- instrumental variable --- regional economic resilience --- influence mechanism --- Yellow River Basin --- quality of life --- healthy region --- healthy environment --- spatial --- synthetic measure --- voivodship --- national fitness policy --- national health --- human capital --- public finance health expenditures --- civil registration --- block chain --- digitization governance --- smart contract --- urban young returnees --- happiness --- healthy China --- HLM --- SEM --- rural-to-urban migrant --- performance analysis --- science mapping --- network analysis --- environmental policy uncertainty --- enterprise pollution emission --- enterprise innovation --- the foreign investment