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[Climate crisis and mental health: a scoping review eco-anxiety in latinamerican adults]. [PDF]
Rev Med Inst Mex Seguro SocGuarderas-Muñoz SJ +2 more
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An 8Tx/32Rx head-neck coil at 7T by combining 2Tx/32Rx Nova coil with 6Tx shielded coaxial cable elements. [PDF]
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Seroprevalence of markers and immunization for hepatitis B in community health workers: a scoping review. [PDF]
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Impact of mitral valve interventions on left ventricular hemodynamics: Insights into energy loss and flow dynamics. [PDF]
JTCVS OpenFeng S +7 more
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Meta-Dispersive 3D Chromatic Confocal Measurement. [PDF]
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Thwarts in transversal designs
Designs, Codes, and Cryptography, 1995A subset of points in a transversal design is a thwart if each block in the design has one of a small number of intersection sizes with the subset. While the details are too complicated to state here, the authors study thwarts (subconfigurations) of transversal deisgns via the use of a version of Wilson's theorem.
Colbourn Charles J
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Journal of Combinatorial Designs, 2000
Let \(G_1,G_2,\dots, G_r\) (called groups) be a partition \(G\) of a set of points \(V\), and \(B^*\) be a collection of subsets (called blocks) of \(V\). A triple \((V,G,B^*)\) is called a group-divisible design (GDD) if \(|G_i\cap B|\leq 1\) for all \(G_i\in G\) and \(B\in B^*\) and for any two points \(x\), \(y\) from distinct groups there is only ...
Mariusz Meszka, Dalibor Fronček
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Let \(G_1,G_2,\dots, G_r\) (called groups) be a partition \(G\) of a set of points \(V\), and \(B^*\) be a collection of subsets (called blocks) of \(V\). A triple \((V,G,B^*)\) is called a group-divisible design (GDD) if \(|G_i\cap B|\leq 1\) for all \(G_i\in G\) and \(B\in B^*\) and for any two points \(x\), \(y\) from distinct groups there is only ...
Mariusz Meszka, Dalibor Fronček
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Transversal designs associated with frobenius groups
Journal of Geometry, 1981To any Frobenius group G (of degree s, with Frobenius complement of order k) we associate an (s,k) -transversal design Δ(G) which admits G as a point-regular collineation group. Δ(G) is in fact also a dual translation net and furthermore admits a flag-regular collineation group. Also, Δ(G) has two orthogonal resolutions.
Dieter Jungnickel, Jungnickel Dieter
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On simple and supersimple transversal designs
Journal of Combinatorial Designs, 2000Given a positive integer \(r\), a transversal design \(\text{TD}_\lambda(k,g)\) is \(r\)-simple if and only if any two distinct blocks (of size \(k\)) have less than \(r\) elements in common. For brevity, \(k\)-simple and 3-simple are simple and supersimple, respectively. \textit{H.-D. O. F. Gronau} and \textit{R. C. Mullin} [J. Comb. Math.
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