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Proportion, Function, and Generation of Dual Receptor Lymphocytes [PDF]

Journal of Immunology Research, Volume 2026, Issue 1, 2026.
The specific immune response mechanisms of B cells and T cells are centered on the classic clonal selection theory, which posits that “a single lymphocyte expresses only one type of antigen receptor.” This mechanism is primarily achieved through V(D)J allelic exclusion rearrangement on germline chromosomes and rigorous self‐tolerance selection. However,
Qi Peng, Lanwei Zhu, XiaoPing Lu, Xinsheng Yao, Poorani Gurumallesh   +4 more
wiley   +2 more sources

Causes of delayed angiosperm diversification: The photosynthetic revolution, increased opportunity costs of anti‐herbivore defenses, selection for qualitative toxins, and acceleration of plant–herbivore coevolution [PDF]

American Journal of Botany, Volume 112, Issue 11, November 2025.
Abstract Why did it take so long for angiosperms to diversify after they arose? Here I consider the indirect but potentially crucial impact of the “photosynthetic revolution” on plant–herbivore coevolution. Increased vein density in fossil leaves implies a doubling in photosynthesis 125–100 million years ago.
Thomas J. Givnish
wiley   +2 more sources

HLA‐A*02:01 Presents Penicillin‐Modified Cysteinylated Peptides for T Cell Recognition [PDF]

Allergy, Volume 80, Issue 11, Page 3165-3177, November 2025.
We describe, for the first time, HLA presentation of benzylpenicillin‐modified peptides incorporating a cysteine‐benzylpenicillin conjugate (CysBP), disulfide linked to an in‐chain cysteine. A dominant HLA‐A*02:01 restricted benzylpenicillin‐specific T cell clone, TRAV3/TRBV20‐1 (BP‐TCR), was identified within PBMCs of a penicillin‐hypersensitive ...
Shawn J. R. Goh, Hovey H. W. Lu, Katherine E. Scull, Kirti Pandey, Mohammadreza Dorvash, Kirsten Deckert, Robert Puy, Robyn E. O'Hehir, Anthony W. Purcell, Nicole A. Mifsud, Patricia T. Illing   +10 more
wiley   +2 more sources

On some properties of k-circulant matrices with the generalized Pell-Padovan numbers

Journal of Innovative Applied Mathematics and Computational Sciences
In this paper, we investigate the properties of the $k$-circulant matrix generated by the generalized Pell--Padovan numbers. We derive explicit formulas for the sum of entries, the maximum column sum norm ($\Vert \cdot \Vert _{1}$), the maximum row sum ...
Yüksel Soykan, Erkan Taşdemir
doaj   +1 more source

Determinants and Inverses of Ppoeplitz and Ppankel matrices

Special Matrices, 2018
In this paper, we consider two kinds of special matrices, which are called Ppoeplitz matrix and Ppankel matrix. The idea of matrix transformation is used to compute the determinants and inverses of the Ppoeplitz matrix and the Ppankel matrix.
Zuo Baishuai, Jiang Zhaolin, Fu Deqian
doaj   +1 more source

Quadratic Approximation of Generalized Tribonacci Sequences

Discussiones Mathematicae - General Algebra and Applications, 2018
In this paper, we give quadratic approximation of generalized Tribonacci sequence {Vn}n≥0 defined by Vn = rVn−1 + sV n−2 + tV n−3 (n ≥ 3) and use this result to give the matrix form of the n-th power of a companion matrix of {Vn}n≥0. Then we re-prove the
Cerda-Morales Gamaliel
doaj   +1 more source

Tiling Models for Palindromic and n‐Colored Compositions With 1 s and 3 s

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In this work, we explore compositions of positive integers into parts consisting of 1 and 3 s, highlighting their close connection to the Narayana numbers. We also examine palindromic compositions of this type and introduce arithmetic functions that reflect their structural properties.
Orhan Dişkaya, Bahar Kuloğlu, Hayrullah Özimamoğlu, Ahmet Kaya, Hamza Menken, Smritijit Sen   +5 more
wiley   +1 more source

Privacy Preserving Message using Padovan Sequence

Journal of Physics: Conference Series, 2021
Abstract An evolution of wireless technology created tremendous change in this era. Large quantities of messages are registered, altered and transmitted through wireless or network cable by fixed devices. Privacy of the transmitted message is a main concern in networks. A diversified encryption algorithm has been suggested in these years
D A Angel Sherin, V Maheswari, V Balaji
openaire   +1 more source

Spectral Study of Five Major Impact Basins and Their Volcanic Infills on Mercury: A Window Into the Mantle's Properties

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission has revealed that about 27% of the surface of Mercury is covered by smooth plains, which are mostly volcanic in origin. These plains are mainly located in the northern hemisphere, as well as within and around major impact basins.
E. Caminiti, S. Besse, A. Doressoundiram, J. Wright   +3 more
wiley   +1 more source

The Impact of a Long‐Lived Basal Magma Ocean on the Thermochemical Evolution of Mars

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract A basal magma ocean (BMO) has been suggested to form as a consequence of cumulate overturn following crystallization of an initial global magma ocean. As a consequence of enrichment in iron and heat‐producing elements (HPE), the BMO stabilizes gravitationally at the base of the planetary mantle, affecting the efficiency of mantle convection ...
Kar Wai Cheng, Maxim D. Ballmer, Paul J. Tackley, Amir Khan   +3 more
wiley   +1 more source