Covid-19 in Pseudo BH-algebra

Yang-Baxterization of the BH algebra.

The BH n (l; m) algebra is deened by two sets of generators one of which satisfy the relations of the braid group and the other the relations of the Hecke algebra of projectors.These algebras are then combined by additional relations in a way which generalize the Birman-Wenzl algebra C n (l; m). In this paper we Yang-Baxterize the algebra BH and compute solutions of the Yang-Baxter equation.The...

A note on the existence of BH(19, 6) matrices

In this note we utilize a non-trivial block approach due to M. Petrescu to exhibit a Butson-type complex Hadamard matrix of order 19, composed of sixth roots of unity. 1 A new Butson-type complex Hadamard matrix A complex Hadamard matrix H is an n × n complex matrix with unimodular entries such that HH∗ = nIn, where ∗ denotes the Hermitian adjoint and In is the identity matrix of order n. Throu...

Decomposition of ideals into pseudo-irreducible ideals in amalgamated algebra along an ideal

Let $f : A rightarrow B$ be a ring homomorphism and $J$ an ideal of $B$. In this paper, we give a necessary and sufficient condition for the amalgamated algebra along an ideal $Abowtie^fJ$ to be $J$-Noetherian. Then we give a characterization for pseudo-irreducible ideals of $Abowtie^fJ$, in special cases.

COVID-19 in Nursing Homes: The Problematic Management of Residents Without Positive COVID-19 RT-PCR

Ethical Issues in COVID-19 Vaccine Rollout

From the beginning of the COVID-19 pandemic, researchers aspired to produce an effective vaccine with appropriate efficacy and low side effects to mitigate the pandemic. It seems that vaccination is the only mean to save the world from this pandemic. In this article, we will review the ethical challenges of mass vaccination (focusing on the vaccine distribution and uptake), referring to the mai...