The nullity of the net Laplacian matrix of a signed graph [PDF]
arXiv, 2023 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]
arXiv, 2017 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 Polarization Dependence of Gamma-Gamma Absorption - Implications for Gamma-Ray Bursts and Blazars [PDF]
, 2014 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
Gamma globulin levels predict type 2 diabetes in the Pima Indian population.
Diabetes, 2001 It has been proposed that inflammation or infection may contribute to the development of type 2 diabetes. We examined whether serum gamma globulin, a nonspecific measure of the humoral immune system, predicted changes in glucose tolerance in 2,530 ...
Robert Lindsay +4 more
semanticscholar +1 more source
Dynamical System Modeling Of Immune Reconstitution Following Allogeneic Stem Cell Transplantation Identifies Patients At Risk For Adverse Outcomes [PDF]
arXiv, 2014 Systems that evolve over time and follow mathematical laws as they do so, are called dynamical systems. Lymphocyte recovery and clinical outcomes in 41 allograft recipients conditioned using anti-thymocyte globulin (ATG) and 4.5 Gray total-body-irradiation were studied to determine if immune reconstitution could be described as a dynamical system ...
arxiv
Radiative Decays involving a0(980) and f0(980) in the Vector Meson Dominance Model [PDF]
arXiv, 2003 We summarize some features of the vector meson dominance model which was recently proposed for studying radiative decays involving the scalar mesons. Using the experimental values of $\Gamma(a_0 \to \gamma\gamma)$, $\Gamma(f_0 \to \gamma\gamma)$ and $\Gamma(\phi \to a_0 \gamma)$ as inputs, we show that the model predicts a large hierarchy between ...
arxiv
Implications of a nonvanishing $Z γγ$ vertex on the $H\to γγγ$ decay [PDF]
arXiv, 2014 The $Z\to \gamma \gamma$ and $H\to \gamma \gamma \gamma$ decays are strictly forbidden in the Standard Model, but they can be induced by theories that violate Lorentz symmetry or the CPT theorem. By assuming that a nonvanishing $Z\gamma \gamma$ vertex is induced in some context of new physics, and by analyzing the reaction $H\to \gamma Z^*\to \gamma ...
arxiv
A new bound for Vizing's conjecture [PDF]
arXiv, 2016 For any graph $G$, we define the power $\pi(G)$ as the minimum of the largest number of neighbors in a $\gamma$-set of $G$, of any vertex, taken over all $\gamma$-sets of $G$. We show that $\gamma(G\square H)\geq \frac{\pi(G)}{2\pi(G) -1}\gamma(G)\gamma(H)$.
arxiv
An improved bound in Vizing's conjecture [PDF]
arXiv, 2017 A well-known conjecture of Vizing is that $\gamma(G \square H) \ge \gamma(G)\gamma(H)$ for any pair of graphs $G, H$, where $\gamma$ is the domination number and $G \square H$ is the Cartesian product of $G$ and $H$. Suen and Tarr, improving a result of Clark and Suen, showed $\gamma(G \square H) \ge \frac{1}{2}\gamma(G)\gamma(H) + \frac{1}{2}\min ...
arxiv
Retracted: Efficacy of Gamma Globulin Combined with Azithromycin Sequential Therapy in the Treatment of RMPP and Its Effect on Th1/Th2 Cytokine Levels. [PDF]
Comput Math Methods Med, 2023 Methods In Medicine CAM.
europepmc +1 more source