Results 61 to 70 of about 5,397,821 (298)

Representations and $K$-theory of Discrete Groups

open access: yes, 1992
Let $\Gamma$ be a discrete group of finite virtual cohomological dimension with certain finiteness conditions of the type satisfied by arithmetic groups.
A. Adem   +17 more
core   +3 more sources

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

On the Bounds for Diagonal and Off-Diagonal Elements of the Hat Matrix in the Linear Regression Model

open access: yesRevstat Statistical Journal, 2016
In the least squares analysis, an appropriate criterion to detect potentially influential observations, either individually or jointly, deals with the values of corresponding Hat matrix elements.
Mohammad Mohammadi
doaj   +1 more source

A statistical approach for modelling the effect of hot press conditions on the mechanical strength properties of HTGR fuel elements

open access: yesMechanical Engineering Journal, 2022
The high temperature gas-cooled reactors (HTGRs) are the next-generation reactors with high safety, because the cores of HTGRs would not melt. But it is important to improve the oxidation resistance of the fuel in case of a huge oxygen ingress into the ...
Jun AIHARA   +2 more
doaj   +1 more source

Conditions for cubic spline interpolation on triangular elements

open access: yesComputers & Mathematics with Applications, 1984
Algebraic conditions which permit one to interpolate twice continuously differentiable piecewise cubic splines over two triangular elements with a common edge are found. Two methods of extending such cubic spline interpolates to arbitrary triangulations are introduced. Section 1 introduces the cubic spline on triangular grids. Let \(\Omega =T_ 1\cup T_
openaire   +1 more source

The Functional Integral for a Free Particle on a Half-Plane

open access: yes, 1992
A free non-relativistic particle moving in two dimensions on a half-plane can be described by self-adjoint Hamiltonians characterized by boundary conditions imposed on the systems.
Ikeda N., Michel Carreau, Sato K.
core   +2 more sources

Ion-by-ion Cooling efficiencies [PDF]

open access: yes, 2011
We present ion-by-ion cooling efficiencies for low-density gas. We use Cloudy (ver. 08.00) to estimate the cooling efficiencies for each ion of the first 30 elements (H-Zn) individually.
Akahori   +19 more
core   +3 more sources

Results of the Childhood Cancer and Leukaemia Group's United Kingdom Relapsed Wilms Tumour Trial

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The United Kingdom relapsed Wilms tumour (UKW‐R) trial aimed to improve the historically low survival rates after relapse of Wilms tumour (WT) through a prospective national risk‐stratified protocol. The trial also evaluated efficacy and toxicity of high‐dose melphalan.
Sucheta J. Vaidya   +10 more
wiley   +1 more source

The effects of trace elements, cations, and environmental conditions on protocatechuate 3,4-dioxygenase activity

open access: yesScientia Agricola, 2013
Phenanthracene is a highly toxic organic compound capable of contaminating water and soils, and biodegradation is an important tool for remediating polluted environments.
Andréa Scaramal da Silva   +4 more
doaj  

Multi-Dimensional Plant Element Stoichiometry—Looking Beyond Carbon, Nitrogen, and Phosphorus

open access: yesFrontiers in Plant Science, 2020
Nutrient elements are important for plant growth. Element stoichiometry considers the balance between different nutrients and how this balance is affected by the environment.
Göran I. Ågren, Martin Weih
doaj   +1 more source

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