Results 31 to 40 of about 11,880 (211)

Elevation, soil pH and calcium availability shape regional and local scale spatial patterns of PhoD gene abundance in tropical and subtropical forests

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra   +3 more
wiley   +1 more source

Temporal Evolution of Contaminant Mass Discharge: Effect of Source Remediation at Contaminated Sites

open access: yesGroundwater Monitoring &Remediation, EarlyView.
Abstract Contaminant mass discharge (CMD) is a key metric for evaluating remediation performance at contaminated sites posing a risk to groundwater. This study assesses temporal CMD trends and associated uncertainties using a geostatistical approach at a chlorinated solvent contaminated site following source zone remediation, supported by two decades ...
Anton Bøllingtoft   +4 more
wiley   +1 more source

Assessment of Spatial Variation of Soil Physical Quality in a Rapeseed (Brassica napus) Field in Bilavar, Kermanshah [PDF]

open access: yesعلوم آب و خاک, 2023
In precision agriculture, a productivity rating system is a significant tool to quantitatively assess soil quality. An experiment was conducted in Bilavar, Kermanshah to evaluate the spatial variability of physical indicators of soil quality of a ...
F. Momeni, A.A. Amirinejad
doaj  

On Spatial Point Processes With Composition‐Valued Marks

open access: yesInternational Statistical Review, EarlyView.
Summary Methods for marked spatial point processes with scalar marks have seen extensive development in recent years. While the impressive progress in data collection and storage capacities has yielded an immense increase in spatial point process data with highly challenging non‐scalar marks, methods for their analysis are not equally well developed ...
Matthias Eckardt   +2 more
wiley   +1 more source

Representação e propagação de incertezas em dados de solos: I - Atributos categóricos Representation and propagation of soil data uncertainties: I - Categoric atributes

open access: yesRevista Brasileira de Ciência do Solo, 2004
Este trabalho teve por objetivos utilizar krigagem por indicação para espacializar propriedades de solos expressas por atributos categóricos, gerar uma representação acompanhada de medida espacial de incerteza e modelar a propagação de incerteza pela ...
S. Bönisch   +3 more
doaj   +1 more source

Estimating Velocities of Infectious Disease Spread Through Spatio‐Temporal Log‐Gaussian Cox Point Processes

open access: yesInternational Statistical Review, EarlyView.
Summary Understanding the spread of infectious diseases such as COVID‐19 is crucial for informed decision‐making and resource allocation. A critical component of disease behaviour is the velocity with which disease spreads, defined as the rate of change between time and space.
Fernando Rodriguez Avellaneda   +2 more
wiley   +1 more source

Weed mapping using a machine vision system Mapeamento de plantas daninhas utilizando um sistema de visão artificial

open access: yesPlanta Daninha, 2012
Weed mapping is a useful tool for site-specific herbicide applications. The objectives of this study were (1) to determine the percentage of land area covered by weeds in no-till and conventionally tilled fields of common bean using digital image ...
M.C. Silva Junior   +4 more
doaj   +1 more source

Geostatistical Learning: Challenges and Opportunities [PDF]

open access: gold, 2021
Júlio Hoffimann   +3 more
openalex   +1 more source

The Epidemiology of Sickle Cell Disease in Sub‐Saharan Africa: Current Knowledge and Gaps to be Filled

open access: yesAmerican Journal of Hematology, Volume 101, Issue S1, Page 5-16, April 2026.
What are the available data on incidence & prevalence prognosis risk factors of severity of sickle cell disease in sub‐Saharan Africa? ABSTRACT Sickle Cell Disease (SCD) is highly prevalent in sub‐Saharan Africa. Epidemiological data remain sparse, but regional screening and research initiatives are expanding.
Brigitte Ranque   +2 more
wiley   +1 more source

Assessment of Inverse Distance Weighting IDW Interpolation on Spatial Variability of Selected Soil Properties in the Cukurova Plain

open access: yesJournal of Agricultural Sciences, 2016
This study attempts to evaluate interpolation technique for mapping spatial distribution of some soil characteristics at the Lower Seyhan River Basin in Cukurova Turkey .
Tülay Tunçay   +3 more
doaj   +1 more source

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