In this talk I summarize a recently proposed mechanism to understand ππ scattering to 1 GeV. The model is motivated by the 1/NC expansion to QCD, and includes a current algebra contact term and resonant pole exchanges. Chiral symmetry plays an important role in restricting the form of the interactions. The existence of a broad low energy scalar (σ) is indicated.

the omega polynomial(x) was recently proposed by diudea, based on the length of stripsin given graph g. the sadhana polynomial has been defined to evaluate the sadhana index ofa molecular graph. the pi polynomial is another molecular descriptor. in this paper wecompute these three polynomials for some infinite classes of nanostructures.

2 3 Background: A high rate of resistance to 3 rd generation cephalosporins among Enterobacteriaceae 4 isolates from Egypt has been previously reported. This study aims to characterize the resistance 5 mechanism (s) to extended spectrum cephalosporins among resistant clinical isolates at a medical 6 institute in Cairo, Egypt. 7 Methods: Nonconsecutive Klebsiella pneumoniae (Kp), Enterobacter cl...

π-calculus is a framework that aims to describe concurrent calculations through a formal definition of processes. Originally, π-calculus is defined by a formal language and a set of reduction rules, much in the spirit of λ-calculus. Our aim is to provide a graphical representation of π-calculus using multi-wired interaction nets, in the spirit this time of proof-nets of linear logic. 1 π-calcul...

Abstract Background Small RNAs (sRNAs) are 20–30 nt regulatory elements which responsible for plant development regulation and participate in many stress responses. Insufficient inorganic phosphate (Pi) concentration triggers responses to balance the internal Pi level. Results In this study, we describe Pi-starvation-responsive small transcriptome changes barley ( Hordeum vulgare L.) using Next...

A search for the doubly charmed baryon $\it{\Omega}_{cc}^{+}$ with decay mode $\it{\Omega}_{cc}^{+}\to\it{\Xi}_c^{+}K^{-}\pi^{+}$ is performed using proton-proton collision data at a centre-of-mass energy of 13$\mathrm{\,Te\kern -0.1em V}$ collected by LHCb experiment from 2016 to 2018, corresponding an integrated luminosity $5.4\,\mathrm{fb}^{-1}$. No significant signal observed within invaria...