Results 111 to 120 of about 1,931 (288)

Quaternionic Perfect Sequences and Hadamard Matrices

open access: yesCoRR
A finite sequence of numbers is perfect if it has zero periodic autocorrelation after a nontrivial cyclic shift. In this work, we study quaternionic perfect sequences having a one-to-one correspondence with the binary sequences arising in Williamson's construction of quaternion-type Hadamard matrices. Using this correspondence, we devise an enumeration
Aidan Bennett   +3 more
openaire   +2 more sources

ZW4864‐mediated inhibition of the β‐catenin/BCL9/BCL9L complex reveals therapeutic potential in bladder cancer

open access: yesMolecular Oncology, EarlyView.
BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi   +11 more
wiley   +1 more source

The Estimation for the Eigenvalue of Quaternion Doubly Stochastic Matrices using Gerschgorin Balls [PDF]

open access: yes, 2019
The purpose of this paper is to locate and estimate the eigen values of quaternion doubly stochastic matrices. We present several estimation theorems about the eigen values of quaternion doubly stochastic matrices.
Dr. Gunasekaran K, Mrs. Seethadevi R
core   +1 more source

Single‐cell DNA methylation profiling: Technologies, computation, and applications in precision oncology

open access: yesMolecular Oncology, EarlyView.
Single‐cell DNA methylation (scDNAme) profiling maps epimutational clonal evolution, revealing mechanisms of malignancy and therapeutic resistance across diverse cancer types. By providing a high‐resolution landscape of intratumoral heterogeneity, these technologies empower precise patient stratification, guide the development of enhanced ...
Ik Soo Kim
wiley   +1 more source

Group matrices for the quaternion and generalized dihedral groups [PDF]

open access: yes, 1986
Properties of group matrices corresponding to the (non-Abelian) quaternion group Q8 and of the generalized dihedral group are ...
Davis, P.J., Wang, K.
core   +1 more source

Advanced quaternion forward kinematics algorithm including overview of different methods for robot kinematics [PDF]

open access: yesFME Transactions, 2014
Formulation of proper and efficient algorithms for robot kinematics is essential for the analysis and design of serial manipulators. Kinematic modeling of manipulators is most often performed in Cartesian space.
Vidaković Jelena Z.   +4 more
doaj  

New families of quaternionic Hadamard matrices

open access: yesDesigns, Codes and Cryptography
AbstractA quaternionic Hadamard matrix (QHM) of ordernis an$$n\times n$$n×nmatrixHwith non-zero entries in the quaternions such that$$HH^*=nI_n$$HH∗=nIn, where$$I_n$$Inand$$H^*$$H∗denote the identity matrix and the conjugate-transpose ofH, respectively.
Santiago Barrera Acevedo   +2 more
openaire   +2 more sources

Interferon beta drives therapy resistance in a patient‐derived model of high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Interferon type 1 (IFN‐1) production and signaling is associated with the acquisition of therapy resistance, following chronic DNA damage, via Interferon‐related DNA damage resistance signature (IRDS) gene expression. An alternative, DNA damage‐independent role of sustained IFN‐1 mediated resistance was identified and characterized by the emergence of ...
Ashlyn Conant   +11 more
wiley   +1 more source

Quaternion Spin

open access: yesMathematics
We present an analysis of the Dirac equation when the spin symmetry is changed from SU(2) to the quaternion group, Q8, achieved by multiplying one of the gamma matrices by the imaginary number, i. The reason for doing this is to introduce a bivector into
Bryan Sanctuary
doaj   +1 more source

Congruence of Quaternionic Skew-Hermitian Matrices

open access: yesIrish Mathematical Society Bulletin, 1997
Any two non-singular skew-hermitian forms over the real quaternions are isometric if they have the same dimension. The author gives an elementary proof, in matrix terms, of this well-known theorem.
openaire   +2 more sources

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