High Relative Accuracy Computations With Covariance Matrices of Order Statistics
ABSTRACT In many statistical applications, numerical computations with covariance matrices need to be performed. The error made when performing such numerical computations increases with the condition number of the covariance matrix, which is related to the number of variables and the strength of the correlation between the variables. In a recent work,
Juan Baz +3 more
wiley +1 more source
The demand for urban transport: An application of discrete choice model for Cadiz [PDF]
The study of the demand for transport has among others applications, the valuation of travel time saving that is a very important question in cost-benefit analysis, and to adopt transport policy tools. Since McFadden developed a discrete choice model for
Candelaria Barrios Gonzalez +1 more
core
Multiple Roles of Protamine Kinase SRPK1 and Phosphatase PP1γ in Sperm Development
ABSTRACT Protein phosphorylation regulates key events of male germ cell differentiation. In the testis, SRPK1 and PP1γ are involved in protamine phosphorylation and dephosphorylation, respectively, and their deregulation is linked to defective chromatin structure and male infertility.
Alberto de la Iglesia +7 more
wiley +1 more source
Introducción: Es la Economía Circular un modelo de desarrollo basado en la gestión más efectiva de los ciclos productivos, de modo que se satisfagan las necesidades de la humanidad con mayor racionalidad.
Darly Ramírez Jiménez +2 more
doaj
[Level of knowledge about periodontal disease among university students in health and other fields. A cross-sectional study]. [PDF]
Aquino Valverde AJ +2 more
europepmc +1 more source
Air Curtains Equipped With Hydroalcoholic Aerosol Sprayers for Massive COVID-19 Disinfection. [PDF]
Raventós J, Sabate R.
europepmc +1 more source
Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha +3 more
wiley +1 more source
[Nutrition with a planetary health perspective: Strategies for Primary Health Care]. [PDF]
Bellido Izquierdo P +3 more
europepmc +1 more source
Validation of the Attitude Scale on Prospective Teachers' Perceptions of the Consequences on Their Psychological State: Well-Being and Cognition. [PDF]
Hervás-Gómez C +3 more
europepmc +1 more source
Gravity Equation and Trade Agreements: A Different Econometric Approach [PDF]
This paper is aimed at multiplicatively estimating the parameters of the gravity equation by using the Poisson Pseudo-Maximum-Likelihood (PPML) estimator, and taking heteroskedasticity into account at the same time.
Iván Iturralde +2 more
core

