Results 51 to 60 of about 12,807,756 (320)

Simulations of Wide-Field Weak Lensing Surveys II: Covariance Matrix of Real Space Correlation Functions

, 2011
Using 1000 ray-tracing simulations for a {\Lambda}-dominated cold dark model in Sato et al. (2009), we study the covariance matrix of cosmic shear correlation functions, which is the standard statistics used in the previous measurements.
Albrecht, Albrecht, Cooray, Doré, Eisenstein, Hamana, Hicken, Hu, Jarvis, Kaiser, Komatsu, Mantz, Masahiro Takada, Masanori Sato, Miyazaki, Okumura, Perlmutter, Refregier, Riess, Sato, Seo, Spergel, Takahashi, Takahiko Matsubara, Takashi Hamana, Taruya, Van Waerbeke, Van Waerbeke, Vikhlinin, White   +29 more
core   +1 more source

Estimação de parâmetros genéticos para peso do nascimento aos 550 dias de idade para animais da raça Tabapuã utilizando-se modelos de regressão aleatória Genetic parameters for weights from birth to 550 days of age of Tabapuã cattle using random regression models

Revista Brasileira de Zootecnia, 2006
Foram utilizados 21.762 registros de peso do nascimento aos 550 dias de idade de 4.221 animais para estimativa das funções de covariância empregando modelos de regressão aleatória.
Laila Talarico Dias, Lucia Galvão de Albuquerque, Humberto Tonhati, Rodrigo de Almeida Teixeira   +3 more
doaj   +1 more source

The cost function of the data fusion process and its application [PDF]

Atmospheric Measurement Techniques, 2019
When the complete data fusion method is used to fuse inconsistent measurements, it is necessary to add to the measurement covariance matrix of each fusing profile a covariance matrix that takes into account the inconsistencies.
S. Ceccherini, N. Zoppetti, B. Carli, U. Cortesi, S. Del Bianco, C. Tirelli   +5 more
doaj   +1 more source

Break point detection for functional covariance

Scandinavian Journal of Statistics, 2022
AbstractMany neuroscience experiments record sequential trajectories where each trajectory consists of oscillations and fluctuations around zero. Such trajectories can be viewed as zero‐mean functional data. When there are structural breaks in higher‐order moments, it is not always easy to spot these by mere visual inspection.
Shuhao Jiao, Ron D. Frostig, Hernando Ombao   +2 more
openaire   +3 more sources

Effects of Biological Sex and Age on Cerebrospinal Fluid Markers—A Retrospective Observational Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cerebrospinal fluid (CSF) analysis is a key diagnostic tool for neurological diseases. To date, only a few studies have investigated in larger cohorts the effect of age and biological sex on diagnostic markers extracted from CSF. Methods For this retrospective observational study, 4163 CSF findings (2012–2020) were evaluated.
Isabel‐Sophie Hafer, Simon Faissner, Ralf Gold, Aiden Haghikia   +3 more
wiley   +1 more source

Random regression analyses using B-splines to model growth of Australian Angus cattle

Genetics Selection Evolution, 2005
Regression on the basis function of B-splines has been advocated as an alternative to orthogonal polynomials in random regression analyses. Basic theory of splines in mixed model analyses is reviewed, and estimates from analyses of weights of Australian ...
Meyer Karin
doaj   +1 more source

Association of CDKN2A/B Homozygous Deletion and Extent of Resection With Survival of Patients With WHO CNS5 Grade 4 Astrocytoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives WHO grade 4 astrocytomas are associated with poor prognosis, and their prognostic factors remain controversial. This study aimed to identify the prognostic factors and develop a management algorithm for these patients. Methods This study retrospectively included 151 CNS5 adult grade 4 astrocytomas from two medical centers.
Jiawei Cai, Guanglin Zhu, Qiu He, Chen Luo, Lingyun Zhuo, Xingfu Wang, Yiming Chen, Xiaoyong Chen, Wendong You, Jiaheng Xu, Yuanxiang Lin, Dezhi Kang, Shuai Wu, Zanyi Wu   +13 more
wiley   +1 more source

The application of photogrammetric numerical methods to the analysis of chromosome digital images

Geodesy and Cartography, 2012
The article discusses research on identifying the possibilities and accuracy of chromosome digital images applying the theory of photogrammetric numerical methods and covariation functions.
Jonas Skeivalas, Algirdas Utkus, Beata Aleksiūnienė   +2 more
doaj   +1 more source

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang, Yujie Liu, Fei Li, Xuelin Li, Lanlan Li, Jie Zhang, Yali Xu   +6 more
wiley   +1 more source

QUANTITATIVE ANALYSIS OF BANDED STRUCTURES IN DUAL-PHASE STEELS

Image Analysis and Stereology, 2011
Dual-Phase (DP) steels are composed of martensite islands dispersed in a ductile ferrite matrix, which provides a good balance between strength and ductility.
Benoit Krebs, Alain Hazotte, Lionel Germain, Mohamed Gouné   +3 more
doaj   +1 more source