Results 111 to 120 of about 2,403 (227)
An orbit theorem for Steiner triple systems
Discrete Mathematics, 1994 The author shows that an automorphism group of a nontrivial (possibly infinite) Steiner triple system has at least as many block-orbits as point-orbits.
openaire +2 more sources
Electrically Responsive Structural‐Color Materials
Aggregate, Volume 7, Issue 7, July 2026.This review highlights electrically responsive structural‐color materials as next‐generation electrochromic platforms, summarizing key structural designs, modulation mechanisms, and performance metrics to enable continuous, low‐voltage, and tailorable color tuning for advanced display, camouflage, and security applications.
Qiming Wang +4 more
wiley +1 more source
3N Agriculture: Growing the greenest tomorrow
Agricultural &Environmental Letters, Volume 11, Issue 1, June 2026.Abstract The global food system must confront the intertwined challenges of feeding a growing population, reversing environmental degradation, and improving nutrition. While past agricultural innovations improved yields, they often undermined sustainability and food quality. In response, we propose the 3N Agriculture framework—Net‐Zero, Nature‐Positive,
Damien J. Field +2 more
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The existence of reverse Steiner triple systems
, 1973 A Steiner triple system of order v is called reverse if its automorphism group contains an involution fixing only one point. We show that such a system exists if and only if v ≡ 1,3,9 or 19 (mod 24)
Teirlinck, Luc
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Brain and Behavior, Volume 16, Issue 6, June 2026.Fecal microbiota transplantation from patients with social anxiety disorder (SAD) into mice induces anxiety‐like behaviors, accompanied by gut microbiota alterations (increased Bacteroidota, decreased butyrate producers), downregulation of microbial metabolic pathways, and reduced plasma tryptophan, suggesting a causal role of gut dysbiosis in SAD ...
Yu‐Chao Feng +6 more
wiley +1 more source
Cancer Reports, Volume 9, Issue 6, June 2026.ABSTRACT Background N6‐methyladenosine (m6A) modification is a pivotal epitranscriptomic regulator implicated in tumor progression. As a core component of the m6A methyltransferase complex, METTL14 is known to suppress tumorigenesis; however, its specific role in tumor angiogenesis remains elusive. Given that Vascular Endothelial Growth Factor A (VEGFA)
Xinmiao Xiong +5 more
wiley +1 more source
Postbiotic Supernatants From Psychobiotic Strains Modulate Antioxidant and Serotonergic Responses
eFood, Volume 7, Issue 3, June 2026.Cell‐free postbiotic supernatants obtained from psychobiotic strains exhibit strain‐dependent antioxidant and serotonergic effects. SCFA‐rich metabolites enhance antioxidant protection and modulate serotonin release in enterochromaffin cells, supporting their potential as functional ingredients for gut and brain health.
Cocean Ana‐Maria +6 more
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Steiner triple systems and cycle structure
Since 1847 when Rev. T.P. Kirkman published his first paper [24], research in Steiner triple systems has grown steadily. With increased and ready access to more powerfiul computers in recent times, this growth has accelerated significantly.
Murphy, John Patrick
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Quadratic Hedging of American Options Under GARCH Models
Journal of Futures Markets, Volume 46, Issue 6, Page 1079-1097, June 2026.ABSTRACT American options are widely traded in financial markets, yet there is a scarcity of literature on hedging in incomplete markets. In this paper, we derive optimal hedging ratios and option values using Local Risk Minimization (LRM) and Global Risk Minimization (GRM) hedging strategies through dynamic programming.
Junmei Ma, Chen Wang, Wei Xu
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Steiner Triple Systems and Perfect Codes
, 2007 Using a computer implementation, we will show that there are perfect codes of length 15, generating Steiner triple systems which have rank 15. We will also show a strong connection between the rank/kernel of a perfect code and its systematics.
Mats Näslund
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