Results 31 to 40 of about 6,881,329 (142)

A review of reactivity assessment of solid waste-derived binders: from conventional testing to data-driven approaches

open access: yesCleaner Materials
There is a growing trend of exploring solid waste as sustainable construction materials. However, solid waste varies greatly in their chemistry, structure, and reaction mechanisms, which makes accurate reactivity measurement difficult.
Xinyu Zhang, Zifan Geng, Guoqing Geng
doaj   +1 more source

Frattini-resistant direct products of pro-$p$ groups

open access: yes, 2022
A pro-$p$ group $G$ is called strongly Frattini-resistant if the function $H \mapsto \Phi(H)$, from the poset of all closed subgroups of $G$ into itself, is a poset embedding. Frattini-resistant pro-$p$ groups appear naturally in Galois theory.
Snopce, Ilir, Tanushevski, Slobodan
core  

A multi‐level process perspective on refugee workplace integration

open access: yesEuropean Management Review, Volume 23, Issue 3, Page 666-690, September 2026.
Abstract Prior research has suggested the need for complementary efforts by multiple stakeholders (government, NGOs, employers) to support workplace integration for refugees, but has paid less attention to how such programs are developed and enacted in specific settings, and how they then influence refugees' workplace integration trajectories.
Vedran Omanović, Ann Langley
wiley   +1 more source

Abelian groups have/are near Frattini subgroups [PDF]

open access: yes, 2002
summary:The notions of nearly-maximal and near Frattini subgroups considered by J.B.
Călugăreanu, Grigore, Breaz, Simion
core  

Beta Diversity and Rarity Assessment of Sessile Cryptobenthic Communities Across Depth and Islands Can Inform Coral Reef Conservation

open access: yesDiversity and Distributions, Volume 32, Issue 8, August 2026.
ABSTRACT Aim This study investigates a poorly known component of coral reefs, the cryptobiome, species that live hidden within the reef matrix, essential for reef functioning and productivity. It focuses on patterns of diversity and rarity of sessile cryptobenthic communities across Mascarene islands, and across shallow and mesophotic habitats (in deep
Baptiste Frattini   +7 more
wiley   +1 more source

Electrical Conductivity and pH Tests for Rapid and Direct Assessment of Pozzolanic Reactivity

open access: yesInternational Journal of Concrete Structures and Materials
This study investigates the effectiveness of rapid (6-h) pH and electrical conductivity measurements of a lime-pozzolan solution for direct assessment of reactivity during initial screening of pozzolanic materials.
Farzaneh Elyasigorji   +2 more
doaj   +1 more source

Sample Origin Effect on Chemical Reactivity of Tajogaite Volcanic Ashes for Ancient Mortar Repair

open access: yesSustainable Chemistry
Volcanic ashes (VA) ejected by the Tajogaite Volcano were studied to determine their potential as pozzolanic materials for construction applications.
Imren Basar   +5 more
doaj   +1 more source

Two-generator groups with perfect Frattini subgroups

open access: yes, 1987
In this paper, 2 2 -generator groups with perfect Frattini subgroups are constructed. The construction also shows that every countable group can be embedded in the Frattini subgroup of a 2 2 -generator group.
M. J. Evans
core   +1 more source

Smart Timing for Smart Products? Complementor Multihoming in Nascent Platform Markets

open access: yesJournal of Product Innovation Management, Volume 43, Issue 4, Page 690-714, July 2026.
ABSTRACT In multi‐platform markets, complementors often choose to offer their products or services across several platforms—a strategy known as complementor multihoming. This approach has gained significant attention from both industry practitioners and management scholars.
Senem Aydin Ozden   +3 more
wiley   +1 more source

Land Subsidence Susceptibility Mapping in Semi‐Arid Regions Using PS‐InSAR and Tree‐Based Ensemble Machine Learning: A Case Study From Çumra, Türkiye

open access: yesTransactions in GIS, Volume 30, Issue 4, June 2026.
ABSTRACT Land subsidence is an increasing environmental hazard in semi‐arid agricultural basins where intensive groundwater abstraction, compressible geological units, and expanding land‐use pressures interact. This study presents a PS‐InSAR and machine‐learning‐based framework for land subsidence susceptibility mapping in the Çumra District of the ...
Burhan Baha Bilgilioğlu
wiley   +1 more source

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