Results 91 to 100 of about 4,423,036 (299)

A comment about estimable functions in linear models with non estimable constraints

Revista Colombiana de Estadística, 1999
In the Searle's (1987) book, Linear Models for Unbalanced Data, a characterization of the estimable functions in linear models with non estimable constraints is presented.
Nieto Fabio Humberto
doaj  

Assessing non-linear models for galaxy clustering I: unbiased growth forecasts from multipole expansion

The Open Journal of Astrophysics, 2019
We assess the performance of the Taruya, Nishimichi and Saito (TNS) model for the halo redshift space power spectrum, focusing on utilising mildly non-linear scales to constrain the growth rate of structure f.
Katarina Markovic, Benjamin Bose, Alkistis Pourtsidou   +2 more
doaj   +1 more source

Non-linear response to electric field in extended Hubbard models

, 2014
The electric-field response of a one-dimensional ring of interacting fermions, where the interactions are described by the extended Hubbard model, is investigated.
Covaci, L., Esfahani, D. Nasr, Peeters, F. M.   +2 more
core   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

Linear and Non-Linear Regression Models Assuminga Stable Distribution

Revista Colombiana de Estadística
In this paper, we present some computational aspects for a Bayesian analysis involving stable distributions. It is well known that, in general, there is no closed form for the probability density function of a stable distribution.
JORGE A. ACHCAR, SÍLVIA R. C. LOPES
doaj  

The Quantum Geometry of N=(2,2) Non-Linear Sigma-Models

, 1997
We consider a general N=(2,2) non-linear sigma-model in (2,2) superspace. Depending on the details of the complex structures involved, an off-shell description can be given in terms of chiral, twisted chiral and semi-chiral superfields.
A. Sevrin, Alvarez-Gaumé, Buscher, Buscher, Callan, Fradkin, Gates, Gates, Grisaru, Grisaru, Grisaru, Grundberg, Grundberg, Howe, Hull, Hull, Ivanov, J. Troost, Jack, Kiritsis, M. Massar, M.T. Grisaru, Nemeschansky, Ooguri, Ooguri, Roček, Roček, Sevrin, Spindel, Spindel, Zumino   +30 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Non-linear Mixed Models in a Dose Response Modelling

InPrime, 2019
Study designs in which an outcome is measured more than once from time to time result in longitudinal data. Most of the methodological works have been done in the setting of linear and generalized linear models, where some amount of linearity is retained.
Madona Yunita Wijaya
doaj   +1 more source

Non Linear Models for Extremal Dependence

SSRN Electronic Journal, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mhalla, Linda, Chavez-Demoulin, Valérie, Naveau, Philippe   +2 more
openaire   +4 more sources