Search results for "heterogeneous"
showing 10 items of 460 documents
Immunobiology of normal and diabetic pregnancy
1990
The International Congress of Immunobiology of Normal and Diabetic Pregnancy brought together a heterogeneous group of workers to consider one of the most fascinating areas of immunology. The meeting, which proved to be a thinkshop as much as a workshop, developed along two major lines: (1) an examination of new data in normal pregnancy immunology, from both the research and clinical points of view and (2) analysis of the suspected problems of diabetic pregnancy. 'Suspected' because pregnancy-related problems in diabetic women are not due solely to metabolic disturbances, but also involve immunological aspects of diabetes, particularly where type I diabetes is concerned.
Long‐term molecular differences between resilient and susceptible mice after a single traumatic exposure
2022
Post-traumatic stress disorder (PTSD) is a heterogeneous disorder induced by trauma, resulting in severe long-term impairments of an individual's mental health. PTSD does not develop in every individual and, thus, some individuals are more resilient. However, the underlying molecular mechanisms are poorly understood. Here, we aimed to elucidate these processes.We used a single-trauma PTSD model in mice to induce long-term maladaptive behaviours and profiled the mice 4 weeks after trauma into resilient or susceptible individuals. The classification of phenotype was based on individual responses in different behavioural experiments. We analysed microbiome, circulating endocannabinoids, and lo…
A quantitative method of photoadsorption determination for irradiated catalyst in liquid–solid system
2009
WOS: 000266963000002
Photoadsorption determination for irradiated catalyst in liquid-solid system
2008
Photoassisted Mechanisms in Heterogeneous Catalysis: The Role of Surface OH in the Decomposition of Ethanoic Acid on Magnesium Oxide
1989
The photodecomposition of adsorbed ethanoic acid was studied on a number of pure and mixed insulator and semiconductor systems having a wide range of acid-base features. MgO appeared to be much more active than any other oxide when oxygen was not present in the reactant mixture. On the basis of infrared, U.V.-Vis. reflectance and photoluminescence data it is suggested that in this case the surface hydroxy-groups which are known to absorb at wavelengths longer than 300 nm are involved in the photodecomposition process.
Topology of multiplex heterogeneous networks of Hodgkin-Huxley-type of models with bistability leading to stabilization stable equilibrium
2021
The dynamics of a multiplex heterogeneous networks of oscillators is studied. Two types of very similar models based on the Hodgkin-Huxley formalism are used as the basic elements of the network: the first one demonstrates bursting oscillations; the second one manifests bistability between bursting oscillations and stable equilibrium. Multiplex networks were developed and investigated, assuming more active communication between models with bistability. Different topologies of the networks are studied. It is shown that in this case it is enough to have one element with bistability in the subnetworks in order to stabilize the equilibrium state in the entire network.
One-Dimensional Diffusion
2009
Effect of Topological Structure and Coupling Strength in Weighted Multiplex Networks
2018
Algebraic connectivity (second smallest eigenvalue of the supra-Laplacian matrix of the underlying multilayer network) and inter-layer coupling strength play an important role in the diffusion processes on the multiplex networks. In this work, we study the effect of inter-layer coupling strength, topological structure on algebraic connectivity in weighted multiplex networks. The results show a remarkable transition in the value of algebraic connectivity from classical cases where the inter-layer coupling strength is homogeneous. We investigate various topological structures in multiplex networks using configuration model, the Barabasi-Albert model (BA) and empirical data-set of multiplex ne…
Partially time invariant panel data regression
2023
When dealing with panel data, considering the variation over time of the variable of interest allows to get rid of potential individual effects. Even though the outcome variable has a continuous distribution, its variation over time can be equal to zero with a strictly positive probability and thus its distribution is a mixture of a mass at zero and a continuous distribution. We introduce a parametric statistical model based on conditional mixtures, build estimators for the parameters related to the conditional probability of no variation and to the conditional expectation related to the continuous part of the distribution and derive their asymptotic consistency and normality under a specif…
Semiconductor mixed oxides as innovative materials for the photocatalytic removal of organic pollutants
2020
Abstract This work aims to provide a critical survey of the extensive literature concerning the potential applications of nanostructured mixed oxides for environmental remediation. In particular, our attention was focused on the feasibility to employ these materials as photocatalysts for the elimination of toxic organic pollutants contained in water and wastewater. The advantages and perspectives of the various nanocomposites are briefly discussed.