Two-photon exclusive decays $B_s \to η(η') γγ$ and $B \to K γγ$ [PDF]
The exclusive decay modes $B \to K \gamma\gamma$ and $B_s \to \eta (\eta') \gamma\gamma$ are shown to have significant branching ratios of approximately $0.5\times 10^{-7}$. This first calculation of these modes employs a model based on a cascade transition $B\to V\gamma\to P\gamma\gamma$ for estimating the long-distance contribution and the process $b\
arxiv +1 more source
Magnetic Relaxometry of Methemoglobin by Widefield Nitrogen-Vacancy Microscopy [PDF]
Hemoglobin (Hb) is a multifaceted protein, classified as a metalloprotein, chromoprotein, and globulin. It incorporates iron, which plays a crucial role in transporting oxygen within red blood cells. Hb functions by carrying oxygen from the respiratory organs to diverse tissues in the body, where it releases oxygen to fuel aerobic respiration, thus ...
arxiv +1 more source
Lepton-flavor-violating decays L->l gamma gamma as a new probe of supersymmetry with broken R-parity [PDF]
Lepton-flavor-violating decays of the type L->l gamma gamma (mu->e gamma gamma, tau->e gamma gamma, and tau->mu gamma gamma) are proposed as new probes of R-parity-violating supersymmetry. Non-penguin diagrams with a sneutrino that decays into two photons via a triangle graph might trigger such decays even in the absence of the corresponding radiative ...
arxiv +1 more source
Biochemical markers of nephrotic syndrome: An observational, cross-sectional study
Background: Blood protein leakage, especially albumin, into the urine is the hallmark of nephrotic syndrome (NS), which poses a serious public health problem.
Emmanuel Kwaku Ofori+6 more
doaj
Biochemical screening of Hisex brown cross chickens after multiple vaccinations
It is impossible to imagine the epizootic well-being of poultry without immunoprophylaxis. Today, there are many vaccines to prevent infectious diseases in poultry.
T. S. Budnik, S. V. Guralska
doaj +1 more source
On geodesic ray bundles in hyperbolic groups [PDF]
We construct a Cayley graph $\mathbf{Cay}_S(\Gamma)$ of a hyperbolic group $\Gamma$ such that there are elements $g,h\in\Gamma$ and a point $\gamma \in \partial_\infty\Gamma = \partial_\infty\mathbf{Cay}_S(\Gamma)$ such that the sets $\mathcal{RB}(g,\gamma)$ and $\mathcal{RB}(h,\gamma)$ in $\mathbf{Cay}_S(\Gamma)$ of vertices along geodesic rays from ...
arxiv +1 more source
The nullity of the net Laplacian matrix of a signed graph [PDF]
Let $\Gamma = (G, \sigma)$ be a signed graph, where $G = (V(G),E(G))$ is an (unsigned) graph, called the underlying graph. The net Laplacian matrix of $\Gamma$ is defined as $L^{\pm}(\Gamma) = D^{\pm}(\Gamma) - A(\Gamma)$, where $D^{\pm}(\Gamma)$ and $A(\Gamma)$ are the diagonal matrix of net-degrees and the adjacency matrix of $\Gamma$, respectively.
arxiv
Aqueous solution interactions with sex hormone-binding globulin and estradiol: A theoretical investigation [PDF]
Sex hormone-binding globulin (SHBG) is a binding protein that regulates availability of steroids hormones in the plasma. Although best known as steroid carrier, studies have associated SHBG in modulating behavioral aspects related to sexual receptivity.
arxiv
The objectives of this study were to evaluate the serum biochemical profile in Quarter Horse mares in their peripartum, and neonates on their birth date, and to compare the values obtained for male and female foals, as well as values obtained for foals ...
Fernando Cristino Barbosa+5 more
doaj +3 more sources
The Polarization Dependence of Gamma-Gamma Absorption - Implications for Gamma-Ray Bursts and Blazars [PDF]
This paper presents an analysis of the dependence of the opacity for high-energy gamma-rays to gamma-gamma absorption by low-energy photons, on the polarization of the gamma-ray and target photons. This process has so far only been considered using the polarization-averaged gamma-gamma absorption cross section.
arxiv +1 more source