A child with a germline duplication of chromosome 2p, 46,XY,der(13)t(2;13)(p23;q34), who developed a fatal neuroblastoma confirmed at necropsy is reported. Fluorescent in situ hybridisation studies showed chromosome 2p (p23-pter) duplicated on chromosome 13 (q34). The clinical features of the present case shared many similarities to previous reports of trisomy 2p and there have been two cases d...

Three dissociative electron attachment channels have been detected and identified in NO via measurement of the O(:P) fragment energy. In addition to the known N(2D °) + O (2p) channel, two new channels N(4S °) + O (2p) and N(2P °) + O (2p) were detected. Cross sections for each of the channels are reported by normalizing the scattering intensities to previously measured total cross sections. Th...

We study the problem of minimizing the vector norm ||·||p of the workloads. We examine move-optimal assignments and prove a performance guarantee of 2p − 1 p · ( p − 1 2p − 2 ) p−1 p , for any integer p > 1 and moreover, we show that this guarantee is tight. Additionally, we consider assignments obtained by applying the LPT-heuristic of Graham (1969). We prove that an LPT-assignment has a perfo...

Unlike most other cells, hyphae of filamentous fungi permanently elongate and lack nonpolar growth phases. We identified AgBoi1/2p in the filamentous ascomycete Ashbya gossypii as a component required to prevent nonpolar growth at hyphal tips. Strains lacking AgBoi1/2p frequently show spherical enlargement at hyphal tips with concomitant depolarization of actin patches and loss of tip-located a...

Ground-state two-proton (2p) radioactivity is a decay mode found in isotopes of elements with even atomic numbers located beyond the two-proton drip line. So far, this exotic process has been experimentally observed in a few light- and medium-mass nuclides with Z≤30. In this study, using state-of-the-art nuclear density functional theory, we globally analyze 2p radioactivity and for the first t...

2014 The atomic nitrogen metastable densities of N(2D) and N(2P) have been measured by optical absorption in a continuous glow dis harge. Electronic densities have been measured with a microwave resonant cavity. The evolution of N(2D) and N(2P) densities as a function of electronic density allows the estimation of the overall creation coefficient by electronic collisions CeM : e + N2 $$ e + N(2...

The saturation of the photoconductivity due to Is-2p+ shallow donor transitions in n-GaAs has been investigated using a high power cw-FIR-laser. Magnetic field strengths were chosen in such a way that 2p+ energy levels were either below or above the N = O conduction band Landau level. In the former case Is-2p+ transitions are found to be inhomogeneously broadened with a saturation intensity as ...

Two-photon (2P) microscopy is widely used in neuroscience, but the optical properties of brain tissue are poorly understood. We have investigated the effect of brain tissue on the 2P point spread function (PSF₂p) by imaging fluorescent beads through living cortical slices. By combining this with measurements of the mean free path of the excitation light, adaptive optics and vector-based modelin...

The electron-ion recombination rate coefficient for Si IV forming Si III was measured at the heavyion storage-ring TSR. The experimental electron-ion collision energy range of 0–186 eV encompassed the 2p nl n′l′ dielectronic recombination (DR) resonances associated with 3s→ nl core excitations, 2s 2p 3s nl n′l′ resonances associated with 2s → nl (n = 3, 4) core excitations, and 2p 3s nl n′l′ re...

Let T + 2p be the set of all trees on 2p (p ≥ 1) vertices with perfect matchings. In this paper, we prove that for any tree T in T + 2p , the kth largest eigenvalue λk(T ) satisfies λk(T ) ≤ 1 2 “q ̊ p k ˇ − 1 + q ̊ p k ˇ + 3 ” (k = 1, 2, . . . , p). This upper bound is known to be best possible when k = 1. The set of trees obtained from a tree on p vertices by joining a pendent vertex to each ve...