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In all living organisms, essential micronutrients are cofactors of many ubiquitous proteins that participate in crucial metabolic pathways, but can also be toxic when present in excessive concentrations. In order to achieve correct homeostasis, plants need to control uptake of metals from the environment, their distribution to organs and tissues, and their subcellular compartmentalization. They also have to avoid deleterious accumulation of metals and metalloids such as Cd, As and Al. These multiple steps are controlled by their transport across various membrane structures and their storage in different organelles. Thus, integration of these transport systems required for micronutrient trafficking within the plant is necessary for physiological processes to work efficiently. To cope with the variable availability of micronutrients, plants have evolved an intricate collection of physiological and developmental processes, which are under tight control of short- and long-range signaling pathways. Understanding how plants perceive and deal with different micronutrient concentrations, from regulation to active transport, is important to completing the puzzle of plant metal homeostasis. This is an essential area of research, with several implications for plant biology, agriculture and human nutrition. There is a rising interest in developing plants that efficiently mobilize specific metals and prosper in soils with limited micronutrient availability, as well as those that can selectively accumulate beneficial micronutrients in the edible parts while avoiding contaminants such as Cd and As. However, there is still an important gap in our understanding of how nutrients reach the seeds and the relative contribution of each step in the long pathway from the rhizosphere to the seed. Possible rate-limiting steps for micronutrient accumulation in grains should be the primary targets of biotechnological interventions aiming at biofortification. Over the last 10 years, many micronutrient uptake- and transport-related processes have been identified at the molecular and physiological level. The systematic search for mutants and transcriptional responses has allowed analysis of micronutrient-signaling pathways at the cellular level, whereas physiological approaches have been particularly useful in describing micronutrient-signaling processes at the organ and whole-plant level. Large-scale elemental profiling using high-throughput analytical methodologies and their integration with both bioinformatics and genetic tools, along with metal speciation, have been used to decipher the functions of genes that control micronutrients homeostasis. In this research topic, we will follow the pathway of metal movement from the soil to the seed and describe the suggested roles of identified gene products in an effort to understand how plants acquire micronutrients from the soil, how they partition among different tissues and subcellular organelles, and how they regulate their deficiency and overload responses. We also highlight the current work on heavy metals and metalloids uptake and accumulation, the studies on metal selectivity in transporters and the cross-talk between micro and macronutrients. Thus, we believe a continued dialogue and sharing of ideas amongst plant scientists is critical to a better understanding of metal movement into and within the plant.
Ubiquitination --- mineral accumulation --- biofortification --- Remobilization --- uptake --- partitioning --- transport
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Phase partition. --- Biomolecules --- Separation. --- Phase partitioning --- Phase rule and equilibrium --- Separation (Technology)
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International Review of Cytology presents current advances and comprehensive reviews in cell biology-both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research.This volume provides an overview of major cytoplasmic properties and events which including cytoarchitecture and the physical properties of cytoplasm, m
Cell compartmentakon. --- Phase partition. --- Phase partitioning --- Phase rule and equilibrium --- Separation (Technology)
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Ethnopsychology. --- Recursive partitioning. --- Partitioning, Recursive --- Nonparametric statistics --- Regression analysis --- Cross-cultural psychology --- Ethnic groups --- Ethnic psychology --- Folk-psychology --- Indigenous peoples --- National psychology --- Psychological anthropology --- Psychology, Cross-cultural --- Psychology, Ethnic --- Psychology, National --- Psychology, Racial --- Race psychology --- Psychology --- National characteristics
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Except for latitudinal and elevational extremes, lizards range across a vast variety of biotopes worldwide, including environments as disparate as deserts, prairies, temperate woodlands, rainforests, or anthropic habitats. Although most species thrive on the ground, numerous lizards are fossorial, arboreal, and even aquatic, found in either fresh- or seawater. With lizards being ectotherms, accurate thermoregulation and other physiological adaptations are in most cases fundamental for their survival in such a variety of habitats. Moreover, lizard coloration may mediate thermoregulation, reproduction, and social status, among others. Lizards have also evolved some unusual antipredator adaptations, such as tail autotomy. Consequently, the astonishing morphological, ecological, and functional diversity of lizards results from extremely intense selective pressures, oftentimes opposing, many of whose interrelationships have yet to be disentangled. This Special Issue provides the international scientific community with an integrative meeting point to discuss and synthesize the current knowledge on the evolutionary pathways and mechanisms that led to today’s lizards.
enhanced vegetation index --- Lacerta --- Mediterranean --- niche partitioning --- Sauria --- Timon --- colouration --- social signals --- Psammodromus algirus --- lizards --- altitudinal gradient --- Indochina --- Southeast Asia --- phylogeny --- Indo-Australian Archipelago --- Bent-toed geckos --- karst --- conservation --- high elevation --- hyperoxia --- sprint performance --- thermal performance curve --- thermal preference --- lizard --- autotomy --- tail --- locomotion --- performance --- temperature --- predation --- n/a
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This Special Issue of Metals was dedicated to recent advances in low-carbon and stainless steels. Although these types of steels are not new, they are still receiving considerable attention from both research and industry sectors due to their wide range of applications and their complex microstructure and behavior under different conditions. The microstructure of low-carbon and stainless steels resulting from solidification, phase transformation, and hot working is complex, which, in turn, affect their performance under different working conditions. A detailed understanding of the microstructure, properties, and performance for these steels has been the aim of steel scientists for a long time. This Issue received quality papers on different aspects of these steels including their solidification, thermomechanical processing, phase transformation, texture, etc., and their mechanical and corrosion behaviors.
pitting --- sigma phase --- 2205 --- duplex stainless steel --- austenitic stainless steel --- cold deformation --- microstructures --- mechanical properties --- austenite --- steel --- thermomechanical processing --- phase transformation --- nucleation --- ferrite --- CCT --- TTT --- incubation --- transformation start --- FAC --- LBE --- turbulent flow --- dissolution --- modelling --- low-carbon AHSS --- Q& --- P --- toughness --- precipitation --- martensite packet --- mechanical characterization --- martensitic transformations --- dynamic transformation --- Nb-microalloyed steel --- roughing passes --- hot forming --- multiphase steel --- quenching and partitioning --- austempering --- Gleeble simulation --- press hardening --- martensite --- quenching --- partitioning --- dilatometry --- EBSD-IQ --- fast heating rate --- formation of austenite --- initial microstructure --- PAGS --- transformation behavior --- tensile properties --- metastability --- LCF --- HCF --- VHCF --- ambient and elevated temperatures --- carbon steel --- rotationally accelerated shot peening --- nanocrystalline --- corrosion resistance --- transformation kinetics --- local equilibrium --- para equilibrium --- Cr-rich precipitate --- interphase boundary --- type 430 stainless steel --- HSLA steel --- alloy design --- grain refinement of austenite --- Zener pinning force --- recrystallization --- Niobium Nb
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"Source-sink theories provide a simple yet powerful framework for understanding how the patterns, processes and dynamics of ecological systems vary and interact over space and time. Integrating multiple research fields, including population biology and landscape ecology, this book presents the latest advances in source-sink theories, methods and applications in the conservation and management of natural resources and biodiversity. The interdisciplinary team of authors uses detailed case studies, innovative field experiments and modeling, and comprehensive syntheses to incorporate source-sink ideas into research and management, and explores how sustainability can be achieved in today's increasingly fragile human-dominated ecosystems. Providing a comprehensive picture of source-sink research as well as tangible applications to real world conservation issues, this book is ideal for graduate students, researchers, natural-resource managers and policy makers"--
ecology --- Landscape conservation --- Natural resources management --- Source sink relations --- Biodiversity --- comminution --- Sustainable development --- Animal populations --- Habitat selection. --- Animals --- Ecological heterogeneity. --- Ecosystem management. --- Research. --- Dispersal. --- Biotic communities --- Ecosystems management --- Applied ecology --- Environmental management --- Nature conservation --- Biodiversity conservation --- Heterogeneity, Ecological --- Ecology --- Fragmented landscapes --- Animal dispersal --- Dispersal of animals --- Selection of habitat --- Animal ecology --- Habitat (Ecology) --- Resource partitioning (Ecology) --- Demography, Wildlife --- Populations, Animal --- Wildlife demography --- Wildlife populations --- Population biology --- Management --- Habitat selection
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Evapotranspiration (ET) is a critical component of the water and energy balances, and the number of remote sensing-based ET products and estimation methods has increased in recent years. Various aspects of remote sensing of ET are reported in the 11 papers published in this book. The major research areas covered by this book include inter-comparison and performance evaluation of widely used one- and two-source energy balance models, a new dual-source model (Soil Plant Atmosphere and Remote Sensing Evapotranspiration, SPARSE), and a process-based model (ETMonitor); assessment of multi-source (e.g., remote sensing, reanalysis, and land surface model) ET products; development or improvement of data fusion frameworks to predict continuous daily ET at a high spatial resolution (field-scale or 30 m) by fusing the advanced spaceborne thermal emission reflectance radiometer (ASTER), the moderate resolution imaging spectroradiometer (MODIS), and Landsat data; and investigating uncertainties in ET estimates using an ET ensemble composed of several land surface models and diagnostic datasets. The effects of the differences between ET products on water resources and ecosystem management were also investigated. More accurate ET estimates and improved understanding of remotely sensed ET products are crucial for maximizing crop productivity while minimizing water losses and management costs.
Eddy-covariance --- surface energy balance model --- evapotranspiration --- Oklahoma Mesonet --- Chi river basin --- SADFAET --- a stratification method --- ecosystem management --- process-based model --- heterogeneous conditions --- land surface temperature --- ETMonitor --- model --- latent heat flux --- multi-source --- water resources management --- remote sensing --- ET --- fusion --- Google Earth Engine --- water stress --- component temperature decomposition --- data fusion --- Mun river basin --- Murrumbidgee River catchment --- remote-sensing --- Thailand --- uncertainty --- field-scale --- partition --- land surface model --- two-source energy balance model --- Surface Energy Balance System --- China --- evapotranspiration partitioning --- yield --- calibration --- unmixing-based method --- Landsat 8 --- eddy covariance observations --- METRIC --- MODIS --- surface energy balance algorithm for land (SEBAL) --- West Africa --- MPDI-integrated SEBS --- STARFM --- multi-source satellite data
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The Special Issue on Advances in Water Distribution Networks (WDNs) explores four important topics of research in the framework of WDNs, namely simulation and optimization modelling, topology and partitioning, water quality, and service effectiveness. With regard to the first topic, the following aspects are addressed: pressure-driven formulations, algorithms for the optimal location of control valves to minimize leakage, the benefits of water discharge prediction for the remote real time control of valves, and transients generated by pumps operating as turbines. In the context of the second topic, a topological taxonomy of WDNs is presented, and partitioning methods for the creation of district metered areas are compared. In relation to the third topic, the vulnerability to trihalomethane is assessed, and a statistical optimization model to minimize heavy metal releases is presented. Finally, the fourth topic focusses on the estimation of non-revenue water, including leakage and unauthorized consumption, and on the assessment of service under intermittent supply conditions.
water distribution system --- artificial neural network --- 24 --- non-revenue water --- runaway conditions --- water quality (WQ) --- release of heavy metals (HMR) --- water service quality --- district metered areas --- modularity --- water distribution network --- optimization --- multiple source waters blending optimization (MSWBO) --- disinfection by-products --- multiple regression analysis --- snapshot simulation --- blending --- pump --- graph partitioning --- dual response surface optimization (DRSO) --- pressure-driven --- topological analysis --- pressure --- unsteady flow --- vulnerability --- water quality --- water distribution modelling --- real time control --- mathematical model --- water distribution network management --- energy recovery systems --- valve --- water hammer --- intermittent water supply --- leakage --- complex network theory
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African ecosystems comprise a wealthy repository of biodiversity, with a high proportion of native and endemic plant species, which makes them biologically unique and providers of a wide range of ecosystem services. A large part of African populations, in both rural and urban areas, depend on plants for their survival and welfare, but many ecosystems are being degraded, mostly due to the growing impacts of climate change and other anthropogenic actions and environmental problems. Loss of habitat and biodiversity affects livelihoods, water supply and food security and reduces the resilience of ecosystems in the African continent. The knowledge about the great African plant and ecosystem diversity, and the structure, composition and processes involved in vegetation dynamics, is crucial to promote their sustainable use and to preserve one of the most understudied regions in the world. This Special Issue aimed to gather contributions that update and improve such knowledge.
ecotone --- fire --- forest core --- habitat preference --- Ngel Nyaki --- niche partitioning --- savannah --- species sorting --- torus translation --- vegetation --- aridification in NW Africa --- Macaronesian islands --- distribution patterns --- West African Monsoon (WAM) --- vascular flora --- African potato --- conservation --- commercialization --- cultivation --- Hypoxidaceae --- medicinal plant --- unsustainable harvesting --- wild harvesting --- woodland --- miombo --- savanna --- diversity --- disturbance --- Baikiaea --- biogeographic vicariance --- extinction --- phylogenomics --- gene shopping --- gene capture --- molecular dating --- Africa --- biome --- RADseq --- Monechma --- Justicia --- phylogeny --- plant diversity --- Bia Tano Forest Reserve --- gap --- regeneration --- species composition --- species diversity --- wildfires --- MODIS burnt area product --- WWF ecoregions --- land cover --- Miombo woodlands --- biodiversity conservation --- sub-Saharan Africa --- flora --- tropical biodiversity
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