Results 71 to 80 of about 77,715 (211)

Multiple Access Channels with Combined Cooperation and Partial Cribbing

open access: yes, 2014
In this paper we study the multiple access channel (MAC) with combined cooperation and partial cribbing and characterize its capacity region. Cooperation means that the two encoders send a message to one another via a rate-limited link prior to ...
Kopetz, Tal   +2 more
core   +1 more source

This is not normal! (Re‐) Evaluating the lower n guidelines for regression analysis

open access: yesTeaching Statistics, Volume 48, Issue 2, Page 130-137, Summer 2026.
Abstract The rule of thumb that a sample size of n≥30 is sufficient for valid regression analysis is often cited but rarely scrutinized. This paper evaluates the minimum number of observations required by examining how distributional characteristics like skewness and kurtosis affect the convergence of estimated t‐statistics to the t‐distribution in ...
David Randahl
wiley   +1 more source

Competing Risks Models for an Enterprises Duration on the Market

open access: yesFolia Oeconomica Stetinensia, 2020
Research background: Enterprises are an important element of the economy, which explains that the analysis of their duration on the market is an important and willingly undertaken research topic.
Urbańczyk Dominika M.
doaj   +1 more source

Multiparametric Characterization of Telomere Length in T Cells by Flow‐FISH

open access: yesCurrent Protocols, Volume 6, Issue 4, April 2026.
Abstract Telomere shortening is a hallmark of aging and immune dysfunction, offering a reliable indicator of cellular replicative history and biological age. Measuring telomere length in defined immune subsets provides critical insights into immune aging and disease‐associated remodeling.
Macedonia Trigueros   +6 more
wiley   +1 more source

Impact analysis of the factors influencing the development of the alternative finance market in Moldova

open access: yesFinancial Internet Quarterly, 2023
The emergence of a decentralized peer-to-peer platforms that matches lending and borrowing without collateral requirements and bank lending channels allowed to develop the new market of alternative financial instruments.
Paslari Andrei
doaj   +1 more source

RF‐Shielding of Laser‐Cut Venous Stents: Calculations, Simulations, and Experiments

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 4, Page 2331-2344, April 2026.
ABSTRACT Purpose To develop an analytical model of the RF‐shielding of laser‐cut venous stents for different orientations and stent geometries. Methods Laser‐cut venous stents are modeled as a grid composed of circular and rectangular loops. As these loops are orthogonal they shield different components of the transmit RF field.
Lisa Regler   +7 more
wiley   +1 more source

FUNDAMENTAL FORCES AFFECTING THE U.S. FRESH BERRY AND LETTUCE/LEAFY GREEN SUBSECTORS [PDF]

open access: yes
Berries, Competitiveness, Fresh Produce, Leafy Greens, Lettuce, Market Forces, Porter's Five Forces, Shipper, Structural Change, Resource /Energy Economics and Policy, Q13, L10, L22, M21,
Cook, Roberta L.
core   +1 more source

How can exact and approximate solutions of Einstein's field equations be compared?

open access: yes, 2004
The problem of comparison of the stationary axisymmetric vacuum solutions obtained within the framework of exact and approximate approaches for the description of the same general relativistic systems is considered.
Belinskii V A   +29 more
core   +1 more source

What Is a Polyolefin? A Critical Overview of Ethylene Copolymers Used as Solar Photovoltaic Module Encapsulants

open access: yesProgress in Photovoltaics: Research and Applications, Volume 34, Issue 4, Page 367-395, April 2026.
Polyolefin encapsulants are gaining dominance in PV modules, yet confusion persists around PO, POE, and TPO definitions. This study clarifies terminology, reviews materials, and properties and proposes a taxonomy to improve understanding, communication, and reliability in solar module manufacturing.
Gernot Oreski   +14 more
wiley   +1 more source

European Seaports Information Systems. The Impacts of Directive 2010/65/EU

open access: yesEconomics and Culture, 2020
Research purpose. The European Union recognizes the importance of information systems for improving the performance of trans-European transport network ports by promoting a set of initiatives focused on their use.
Pinto Claudio Jose   +1 more
doaj   +1 more source

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