Results 91 to 100 of about 1,141,381 (319)

METHODS OF MATHEMATICAL STATISTICS AS A MEANS OF PROFESSIONAL COMPETENCE FORMATION OF STUDENTS-ECOLOGISTS

open access: yesОбразование и наука, 2018
Introduction. Today, the worsening conditions of the human habitat are generating considerable interest in terms of the active development of the system of ecological education and education of the population.
S. I. Toropova
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Discussion of: A statistical analysis of multiple temperature proxies: Are reconstructions of surface temperatures over the last 1000 years reliable?

open access: yes, 2011
Discussion of "A statistical analysis of multiple temperature proxies: Are reconstructions of surface temperatures over the last 1000 years reliable?" by B.B. McShane and A.J.
Li, Bo, Nychka, Doug
core   +3 more sources

A Model for Pottery Material Processing

open access: yesПоволжская археология, 2018
The subject of the present paper is an exemplary model for the processing of the mass archaeological material – the pottery. For this aim, a typological system has been developed and it consists of Whole Vessels Typology (WVT) and Pottery Fragment ...
Borisov Boris D.
doaj   +1 more source

Correction on Moments of minors of Wishart matrices

open access: yes, 2012
Correction on Moments of minors of Wishart matrices by M. Drton and A. Goia (Ann. Statist. 36 (2008) 2261-2283), arXiv:math/0604488Comment: Published in at http://dx.doi.org/10.1214/12-AOS988 the Annals of Statistics (http://www.imstat.org/aos/) by the
Drton, Mathias, Goia, Aldo
core   +1 more source

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

open access: yesAdvanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng   +7 more
wiley   +1 more source

Egon Vielrose (1907–1984) – Demographer, Statistician, Econometrician

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2019
Egon Vielrose was an outstanding Polish demographer, statistician and econometrician. He studied mathematics at Warsaw University and economics at the Higher School of Trade and then he qualified as an assistant professor at Warsaw University.
Czesław Domański
doaj   +1 more source

Experimentally Validated Design Principles of D‐Block Transition Metal Single‐Atom Non‐Dissociative Chemisorption Solid‐State Hydrogen Storage Materials

open access: yesAdvanced Functional Materials, EarlyView.
A novel descriptor and a bottom‐up design principle are established to enable the rational design of hydrogen storage materials based on d‐block transition metal single‐atom COFs. By modulating H₂ adsorption through d‐orbital tuning, this approach achieves both high storage capacity and fast kinetics, while revealing a volcano‐type relationship between
Qiuyan Yue   +24 more
wiley   +1 more source

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