Results 31 to 40 of about 4,423,036 (299)

Non-linear modelling of breast tissue

Mathematical Medicine and Biology, 2007
Previous approaches to modelling the large deformation of breast tissue, as occurs, e.g. in imaging using magnetic resonance imaging or mammography, include using linear elasticity and pseudo-non-linear elasticity, in which case the non-linear deformation is approximated by a series of small linear isotropic deformations, with the (constant) Young's ...
Whiteley, J, Gavaghan, D, Chapman, S, Brady, J   +3 more
openaire   +5 more sources

Two dimensional non-linear sigma models as a limit of the linear sigma models

, 2004
We show how to obtain the O(N) non-linear sigma model in two dimensions as a strong coupling limit of the corresponding linear sigma model. In taking the strong coupling limit, the squared mass parameter must be given a specific coupling dependence that ...
Sonoda, Hidenori
core   +1 more source

Inbreeding depression in Holstein cattle in Brazil

Revista Brasileira de Zootecnia
The objective of this study was to evaluate inbreeding depression in Holstein cows in Brazil, considering their 305-day milk production (MP), age of first calving (AFC), and calving interval (CI).
Mário Henrique Magalhães Araújo da Silva, Carlos Henrique Mendes Malhado, Elisandra Lurdes Kern, Darlene dos Santos Daltro, Jaime Araujo Cobuci, Paulo Luiz Souza Carneiro   +5 more
doaj   +1 more source

Aging in Models of Non-linear Diffusion

, 1996
We show that for a family of problems described by non-linear diffusion equations an exact calculation of the two time correlation function gives C(t,t')=f(t-t')g(t'), t>t', exhibiting normal and anomalous diffusions, as well as aging effects, depending ...
A. Compte, A. R. Plastino, C. Tsallis, C. Tsallis, C. Tsallis, C. Tsallis, D. G. Aronson, D. H. Zanette, Daniel A. Stariolo, E. M. F. Curado, E. M. F. Curado, E. Marinari, G. Zumofen, H. Spohn, J. P. Bouchaud, J. P. Bouchaud, L. C. E. Struik, L. Cugliandolo, L. F. Cugliandolo, N. Goldenfeld, P. A. Alemany   +20 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Some Non-Local Population Models with Non-Linear Diffusion

Revista Integración, 2010
In this paper we present some theoretical results concerning to a non-local elliptic equation with non-linear diffusion arising from population dynamics. Resumen.
Francisco Julio S.A. Corrêa, Manuel Delgado, Antonio Suárez   +2 more
doaj   +2 more sources

Reliability of imperfect structures (simple non-linear models)

Journal of Civil Engineering and Management, 2002
Limit states of simple, spatial, non-linear models of structures with two degrees of freedom are considered. Geometric and material imperfections are taken in the form of random variables.
Eugeniusz Bielewicz, Jarosłlaw Goórski
doaj   +1 more source

Chiral non-linear sigma-models as models for topological superconductivity

, 2000
We study the mechanism of topological superconductivity in a hierarchical chain of chiral non-linear sigma-models (models of current algebra) in one, two, and three spatial dimensions. The models have roots in the 1D Peierls-Frohlich model and illustrate
A. Fetter, A. G. Abanov, A. G. Abanov, A. G. Abanov, A. G. Abanov, A. J. Heeger, A. M. J. Schakel, A. M. Polyakov, D. Loss, D. Senechal, G. Fröhlich, I. Affleck, J. Goldstone, L. Pontrjagin, N. Dorey, P. A. Lee, P. B. Wiegmann, P. B. Wiegmann, P. B. Wiegmann, P. Wiegmann, R. B. Laughlin, S. B. Treiman, T. Jaroszewicz, T. Jaroszewicz, X.-G. Wen, Y-H. Chen   +25 more
core   +1 more source

Non-linear Evolution of Matter Power Spectrum in Modified Theory of Gravity [PDF]

, 2009
We present a formalism to calculate the non-linear matter power spectrum in modified gravity models that explain the late-time acceleration of the Universe without dark energy.
Atsushi Taruya, Kazuya Koyama, T. Nishimichi, Takashi Hiramatsu, W. H. Press, Y. Fujii   +5 more
core   +3 more sources

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie, Kara A. Gray‐Burrows, Peter F. Day, Bob Phillips, Carl A. Thompson   +4 more
wiley   +1 more source