Results 31 to 40 of about 16,427,329 (274)

Kinetics of K release from soils of Brazilian coffee regions: effect of organic acids Cinética de liberação do potássio em solos de regiões cafeeiras: efeito de ácidos orgânicos

open access: yesRevista Brasileira de Ciência do Solo, 2008
Kinetic studies on soil potassium release can contribute to a better understanding of K availability to plants. This study was conducted to evaluate K release rates from the whole soil, clay, silt, and sand fractions of B-horizon samples of a basalt ...
Vladimir Antônio Silva   +5 more
doaj   +1 more source

Fisheries‐induced evolution of alternative male life history tactics in Coho salmon

open access: yesEvolutionary Applications, 2020
Fisheries‐induced evolution (FIE) can result when harvest imposes artificial selection on variation in heritable phenotypic traits. While there is evidence for FIE, it remains difficult to disentangle the contributions of within‐generation demographic ...
Kyle A. Young   +2 more
doaj   +1 more source

Approach to first-order exact solutions of the Ablowitz-Ladik equation [PDF]

open access: yes, 2011
We derive exact solutions of the Ablowitz-Ladik (A-L) equation using a special ansatz that linearly relates the real and imaginary parts of the complex function.
Akhmediev, Nail   +2 more
core   +1 more source

First-order aggregation models with alignment [PDF]

open access: yes, 2015
We include alignment interactions in a well-studied first-order attractive-repulsive macroscopic model for aggregation. The distinctive feature of the extended model is that the equation that specifies the velocity in terms of the population density ...
Fetecau, Razvan C.   +2 more
core   +1 more source

Mathematical Kinetic Modeling on Isoniazid Release from Dex-HEMA-PNIPAAm Nanogels [PDF]

open access: yesNanomedicine Research Journal, 2016
Objective(s): The quantitative calculation of release data is more facil when mathematics come to help. mathematically modeling could aid optimizing and amending the delivery systems design. Aim of this study is to find out the isoniazid release kinetic.
Maryam Jafari, Babak Kaffashi
doaj   +1 more source

Interactive Interpretation Viewer for Typed First-order Logic

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference, 2023
This poster describes the Interactive Interpretation Viewer - IIV, for finite interpretations in typed first-order logic written in the (new) TPTP format for interpretations.
Jack McKeown, Geoff Sutcliffe
doaj   +1 more source

Spectral asymptotics for first order systems [PDF]

open access: yes, 2016
This is a review paper outlining recent progress in the spectral analysis of first order systems. We work on a closed manifold and study an elliptic self-adjoint first order system of linear partial differential equations.
Avetisyan, Zhirayr   +2 more
core   +2 more sources

On behaviours of functional Volterra integro-differential equations with multiple time lags

open access: yesJournal of Taibah University for Science, 2018
In this paper, the authors consider a non-linear Volterra integro-differential equation (NVIDE) of first order with multiple constant time lags. They obtain new sufficient conditions on stability (S), boundedness (B), global asymptotic stability (GAS) of
Cemil Tunç, Osman Tunç
doaj   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

Defining Roles in Pediatric Palliative Care: Perspectives From Oncology and Palliative Care Teams

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Early integration of pediatric palliative care (PPC) is associated with improved symptom management, quality of life, and healthcare utilization for children with cancer. Despite this, variation persists in how PPC is understood, operationalized, and integrated within pediatric oncology programs. In particular, ambiguity surrounding
Leeat Granek   +13 more
wiley   +1 more source

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