Results 101 to 110 of about 25,433 (194)
The EUROmediCAT Network and Databases: A Resource for Pharmacovigilance in Pregnancy
ABSTRACT Background The evidence gap relating to the risk of congenital anomalies (CA) associated with first trimester medication exposure in pregnancy is well recognized. Aims We describe the EUROmediCAT network and databases, and the methodological approach to pregnancy pharmacovigilance.
Helen Dolk +27 more
wiley +1 more source
The examination of quantitative structure-property relationship (QSPR) paradigms uses topological indices to explain the chemical and physical properties of molecular entities. In the current study, the analysis primarily focused on the omicron degree of
İdris Çiftçi
doaj +1 more source
The Zagreb indices 30 years after [PDF]
The original formulation of the Zagreb indices is presented and their relationship to topological indices such as self-returning walks, Platt, Gordon-Scantlebury and connectivity indices is discussed. Their properties are also listed. Modified Zagreb indices are introduced and the Zagreb complexity indices reviewed.
Nikolić, Sonja +3 more
openaire +4 more sources
Demographic and Structural Variability Modulate Growth Dynamics in European Beech Primary Forests
Climate change is increasing drought and heat stress on European beech (Fagus sylvatica L.), causing widespread tree vitality losses and growth declines across Europe. Using a large tree ring network from montane primary beech forests, we found that trees of various ages and sizes respond differently to climate warming, leading to contrasting within ...
Krešimir Begović +13 more
wiley +1 more source
Entropy measures of dendrimers using degree based indices
Topological indices play a crucial role as molecular descriptors in QSAR/QSPR research. Graph entropy measurements are of great importance in various fields like chemistry, discrete mathematics, and biology.
Ali Ovais +4 more
doaj +1 more source
Let \(G\) be a graph with vertex set \(V(G)\) and edge set \(E(G)\). Let \(d_i\) be the degree of the vertex \(v_i \in V(G)\). The first and second Zagreb indices, \(M_1 = \sum_{v_i \in V(G)} d_i^2\) and \(M_2 = \sum_{v_iv_j \in E(G)} d_i\,d_j\) are the oldest and most thoroughly investigated vertex degree-based molecular structure descriptors.
Borovićanin, Bojana +3 more
openaire +1 more source
Computing connection-based topological indices of a carbon nanotubes
Topological indices (TIs) are mathematical codings of the molecular graphs that predict the physicochemical, biological, toxicological, and structural properties of the chemical compounds.
Ejaz Ul Haq +4 more
doaj +1 more source
Extremal values on Zagreb indices of trees with given distance k-domination number. [PDF]
Pei L, Pan X.
europepmc +1 more source
Lower bounds for the Zagreb indices of trees with given total domination number and its applications in QSPR studies of alkanes. [PDF]
Manuel M, Parthiban A.
europepmc +1 more source
Reverse Zagreb Indices and Their Application in the Evaluation of Physiochemical Properties of Anticancer/Antibacterial Drugs. [PDF]
Rao Y, Chen R, Ahmad H, Ahmad U.
europepmc +1 more source

