Results 81 to 90 of about 848,796 (301)

Compact polarization converter in InP-based material

Optics Express, 2005
We present a polarization converter using one-dimensional grating principles. The device is based on slanted slots etched deeply into an InP/InGaAsP heterostructure. Almost complete polarization conversion, with a 14 dB extinction ratio, is observed for a device less than 2 microm long.
M. V. KOTLYAR, L. BOLLA, MIDRIO, Michele, L. O'FAOLAIN, T. F. KRAUSS   +4 more
openaire   +5 more sources

Stabilization of highly polar BiFeO$_3$-like structure: a new interface design route for enhanced ferroelectricity in artificial perovskite superlattices

, 2016
In ABO3 perovskites, oxygen octahedron rotations are common structural distortions that can promote large ferroelectricity in BiFeO3 with an R3c structure [1], but suppress ferroelectricity in CaTiO3 with a Pbnm symmetry [2].
Chen, Mohan, Lee, Ho Nyung, Miller, Dean J., Rabe, Karin M., Wang, Hongwei, Wen, Jianguo, Wu, Xifan, Zhou, Qibin   +7 more
core   +2 more sources

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

Molecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute, Madeleine Birgersson, Paolo Ceriani, Margareta Wilhelm, Ourania N Kostopoulou   +4 more
wiley   +1 more source

Polarization holography materials and applications

Imaging and Applied Optics 2016, 2016
Modulating orientation of optical anisotropy axis can transform half-wave retardation films into lenses, prisms, axicons, spiral phase plates, and more. Polarization holography, particularly, digital, expands the variety and capabilities of the new generation optics. Article not available.
Luciano De Sio, David E. Roberts, Nelson Tabiryan, Diane M. Steeves, Brian R. Kimball   +4 more
openaire   +2 more sources

Generic theory of active polar gels: a paradigm for cytoskeletal dynamics

, 2004
We develop a general theory for active viscoelastic materials made of polar filaments. This theory is motivated by the dynamics of the cytoskeleton. The continuous consumption of a fuel generates a non equilibrium state characterized by the generation of
116, 14, 292, 389, 95, Fabry, Hatwalne, Head, Joanny, Jülicher, Korean, Kruse, Kruse, Kruse, Kruse, Kruse, Lee, Liverpool, Manneville, Martin, Nédélec, Ramaswamy, Sankararaman, Sekimoto, Simha, Verkhovsky, Vicker, Wilhelm   +27 more
core   +3 more sources

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Microgravity-activated high-performance van der Waals InSe ferroelectric semiconductor

Nature Communications
The space microgravity environment, scarcely attainable on Earth, is considered to have a positive effect on crystal growth, especially the van der Waals layered materials with low interlayer sliding energy barriers.
Rong Jin, Fengrui Sui, Yilun Yu, Beituo Liu, Min Jin, Xuechao Liu, Jiawen Dai, Yufan Zheng, Shujing Jia, Ruijuan Qi, Fangyu Yue, Junhao Chu   +11 more
doaj   +1 more source

Structural and Electronic Effect Driven Distortions in Visible Light Absorbing Polar Materials ATa₂V₂O₁₁ (A = Sr, Pb). [PDF]

J Phys Chem C Nanomater Interfaces, 2022
Babaryk AA, Odynets IV, Lobato Á, Adawy A, Recio JM, Garcia-Granda S.   +5 more
europepmc   +1 more source

Polarized representation for depolarization-dominant materials

Optics Express
The light-matter interactions which occur in common indoor environments are strongly depolarizing, but the relatively small polarization attributes can be informative. This information is used in applications such as physics-based rendering and shape-from-polarization.
Quinn Jarecki, Meredith Kupinski
openaire   +2 more sources

Identification and Comparison of Gray Literature in Two Polar Libraries: Australian Antarctic Division and Scott Polar Research Institute [PDF]

, 2009
Gray literature collections were investigated and compared at the libraries of the Australian Antarctic Division (AAD) and the Scott Polar Research Institute (SPRI) in order to improve accessibility.
Carle, Daria O.
core