Results 31 to 40 of about 8,183 (128)
Бюллетень Почвенного института им. В.В. ДокучаеваThe paper analyzes the elemental composition of soils and plants of agrocenosis on the gray forest soil of Vladimir opolye under long-term application of mineral and organic fertilizers. The content of total and mobile forms of Ni, Cu, Zn, Co, Mn, Fe and
A. D. Kotelnikova +6 more
doaj +1 more source
Adaptive time-stepping for incompressible flow part I: scalar advection-diffusion [PDF]
, 2007 Even the simplest advection-diffusion problems can exhibit multiple time scales. This means that robust variable step time integrators are a prerequisite if such problems are to be efficiently solved computationally.
Gresho, Philip M. +2 more
core +3 more sources
Development and establishment of the laboratory for plant immunity of the FSBSI “ARC “Donskoy”
Зерновое хозяйство РоссииThe current paper has presented the stages of the development on plant protection study over 115 years and the history of the establishing and functioning of the laboratory for plant immunity since 1974 (50 years) at the Federal State Budgetary ...
T. G. Derova, N. V. Shishkin
doaj +1 more source
Quasiparticle band structure based on a generalized Kohn-Sham scheme
, 2008 We present a comparative full-potential study of generalized Kohn-Sham schemes (gKS) with explicit focus on their suitability as starting point for the solution of the quasiparticle equation.
F. Bechstedt +5 more
core +1 more source
Plant Pathology, Volume 74, Issue 5, Page 1266-1276, June 2025.RNAseq was used to identify the second natural infection of bidens mottle virus on sunflowers in an open field setting in South Africa and is the first detection of the virus in the country and significantly stunted plant growth and yield. ABSTRACT Sunflower (Helianthus annuus) is an oilseed crop of global economic importance, and South Africa ranks ...
Phrasia Mapfumo +5 more
wiley +1 more source
, 2017 We consider an approximate solution for the one-dimensional semilinear singularly-perturbed boundary value problem, using the previously obtained numerical values of the boundary value problem in the mesh points and the representation of the exact ...
Barakovic, Elvis +3 more
core +1 more source
Role of WAVE3 as an actin binding protein in the pathology of triple negative breast cancer
Cytoskeleton, Volume 82, Issue 3, Page 130-144, March 2025.Abstract Breast cancer, a prevalent global health concern, has sparked extensive research efforts, particularly focusing on triple negative breast cancer (TNBC), a subtype lacking estrogen receptor (ER), progesterone receptor, and epidermal growth factor receptor.
Kruyanshi Master +3 more
wiley +1 more source
A robust DPG method for singularly perturbed reaction-diffusion problems
, 2017 We present and analyze a discontinuous Petrov-Galerkin method with optimal test functions for a reaction-dominated diffusion problem in two and three space dimensions. We start with an ultra-weak formulation that comprises parameters $\alpha$, $\beta$ to
Heuer, Norbert, Karkulik, Michael
core +1 more source
Advances in Mathematical Physics, Volume 2025, Issue 1, 2025.This study introduces a fitted numerical approach for solving singularly perturbed time‐fractional parabolic differential equations incorporating a delay term. The stability of the method is rigorously examined using the comparison principle and solution bounds, while its convergence is analyzed through the barrier function approach and the Peano ...
Nuru Ahmed Endrie +2 more
wiley +1 more source
Fermion confinement induced by geometry
, 2011 We consider a five-dimensional model in which fermions are confined in a hypersurface due to an interaction with a purely geometric field. Inspired by the Rubakov-Shaposhnikov field-theoretical model, in which massless fermions can be localized in a ...
A. Trautman +26 more
core +1 more source