91 research outputs found
Phase Bifurcation and Zero Reflection in Planar Plasmonic Metasurfaces
We introduce a general formalism
combining the coupled oscillator
model with the transfer matrix method to analyze and engineer the
phase of the light reflected from a Fano-resonant metasurface. This
method accounts for periodicity and the presence of substrates, and
we demonstrate that these factors can be used to tune the reflected
phase at will. Utilizing these effects and adjusting the coupling
strength of the underlying unit cell, we achieve zero reflection at
the dark resonance of the metasurface. We show that the resulting
phase singularity can dramatically increase the sensitivity of phase-based
detection schemes. The phase bifurcation unveiled in this work can
be used to design plasmonic metasurfaces that explore the unusual
phase behavior of light
Data_Sheet_1_Mapping and Analysis of a Novel Genic Male Sterility Gene in Watermelon (Citrullus lanatus).PDF
Seed production is critical for watermelon production, which mostly involves first-generation hybrid varieties. However, watermelon hybrid seed production currently requires complex procedures, including artificial isolation and pollination. Therefore, the development and use of a male-sterile system to generate watermelon hybrids can simplify the process. The scarcity of male-sterile watermelon germplasm resources necessitates the use of molecular breeding methods. Unfortunately, the genes responsible for male sterility in watermelon have not been cloned. Thus, the genetic basis of the male sterility remains unknown. In this study, two DNA pools derived from male-sterile and normal plants in the F2 population were used for whole-genome resequencing. The Illumina high-throughput sequencing resulted in 62.99 Gbp clean reads, with a Q30 of 80% after filtering. On the basis of the SNP index association algorithm, eight candidate regions (0.32 Mb) related to specific traits were detected on chromosome 6. Expression pattern analyses and watermelon transformation studies generated preliminary evidence that Cla006625 encodes a pollen-specific leucine-rich repeat protein (ClaPEX1) influencing the male sterility of watermelon. The identification and use of genic male sterility genes will promote watermelon male sterility research and lay the foundation for the efficient application of seed production technology.</p
Forest plot for progression free survival in postmenopausal patients with HR+ advanced breast cancer.
Forest plot for progression free survival in postmenopausal patients with HR+ advanced breast cancer.</p
Forest plot for overall response rate in postmenopausal patients with HR+, HER2- advanced breast cancer.
Forest plot for overall response rate in postmenopausal patients with HR+, HER2- advanced breast cancer.</p
Forest plot for discontinuations in postmenopausal patients with HR+ advanced breast cancer.
Forest plot for discontinuations in postmenopausal patients with HR+ advanced breast cancer.</p
Forest plot for clinic benefit rate in postmenopausal patients with HR+, HER2- advanced breast cancer.
Forest plot for clinic benefit rate in postmenopausal patients with HR+, HER2- advanced breast cancer.</p
Forest plot for CTCAE≥3 in postmenopausal patients with HR+ advanced breast cancer.
Forest plot for CTCAE≥3 in postmenopausal patients with HR+ advanced breast cancer.</p
Risk of bias summary: Review authors’ judgements about each risk of bias item for each included study.
Risk of bias summary: Review authors’ judgements about each risk of bias item for each included study.</p
Assembling Au<sub>4</sub> Tetrahedra to 2D and 3D Superatomic Crystals Based on Superatomic-Network Model
Thiolate-protected gold nanoclusters (denoted as Aum(SR)n or AunLm) have received
extensive
attention both experimentally and theoretically. Understanding the
growth mode of the Au4 unit in Aum(SR)n is of great significance for experimental
synthesis and the search for new gold clusters. In this work, we first
build six clusters of Au7(AuCl2)3, Au12(AuCl2)4, Au16(AuCl2)6, Au22(AuCl2)6, and Au30(AuCl2)6 with the Au4 unit as the basic building blocks. Density functional theory
(DFT) calculations show that these newly designed clusters have high
structural and electronic stabilities. Based on chemical bonding analysis,
the electronic structures of these clusters follow the superatom network
(SAN) model. Inspired by the cluster structures, we further predicted
an Au4 two-dimensional (2D) monolayer and a three-dimensional
(3D) crystal using graphene and diamond as templates, respectively.
The computational results demonstrate that the two structures have
high dynamic, thermal, and mechanical stabilities, and both structures
exhibit metallic properties according to the band structures calculated
at the HSE06 level. The chemical bonding analysis by the solid-state
natural density partitioning (SSAdNDP) method indicates that they
are superatomic crystals assembled by two electron Au4– superatoms. With this construction strategy, the new
bonding pattern and properties of AunLm are studied and the structure types of gold
are enriched
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