Results 61 to 70 of about 1,057,712 (313)

From the generalized reflection law to the realization of perfect anomalous reflectors [PDF]

Science Advances, 2016
Nonlocal metasurface for perfect anomalous reflection demonstrates a new possibility for controlling electromagnetic energy flow. The use of the generalized Snell’s law opens wide possibilities for the manipulation of transmitted and reflected wavefronts.
A. Díaz-Rubio, V. Asadchy, A. Elsakka, S. Tretyakov   +3 more
semanticscholar   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Electronically Tunable Perfect Absorption in Graphene. [PDF]

Nano letters (Print), 2017
The demand for dynamically tunable light modulation in flat optics applications has grown in recent years. Graphene nanostructures have been extensively studied as means of creating large effective index tunability, motivated by theoretical predictions ...
Seyoon Kim, M. Jang, V. Brar, Kelly W Mauser, L. Kim, H. Atwater   +5 more
semanticscholar   +1 more source

Perfective – imperfective

Linguistic Variation, 2013
Tense morphology has been found to be cross-linguistically vulnerable in specific language impairment (SLI). Research on the development of aspect is rather limited and results are quite inconsistent; some studies suggest that aspect appears intact (Leonard et al. 2003), while others report severe deficits (Fletcher et al. 2005).
Konstantzou, Katerina, van Hout, Angeliek, Varlokosta, Spyridoula, Vlassopoulos, Maria   +3 more
openaire   +2 more sources

Predicting Loss of Ambulation in Limb Girdle Muscular Dystrophy R9

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Limb girdle muscular dystrophy type R9 (LGMDR9) results from biallelic variants in FKRP. There is limited data to predict loss of ambulation (LOA) among those with LGMDR9. Methods Participants in an ongoing dystroglycanopathy natural history study (NCT00313677) with FKRP variants who had achieved ambulation and were more than 3 ...
Chandra L. Miller, Lauren N. Coffey, Shelley R. H. Mockler, Katie M. Laubscher, Carrie M. Stephan, M. Bridget Zimmerman, Katherine D. Mathews   +6 more
wiley   +1 more source

Repairing Effect of Mesenchymal Stem Cells on Lead Acetate-Induced Testicular Injury in Mice

Cell Transplantation
Lead acetate can cause testicular damage in males. In this study, we assessed the repairing effects of human umbilical cord mesenchymal stem cells (MSCs) on testicular injury caused by lead acetate in mice.
Shasha Zhao, Zhaozhi Li, Kun Li, Xiaoyu Dai, Zhe Xu, Li Li, Huanhuan Wang, Xiaodun Liu, Dong Li   +8 more
doaj   +1 more source

Rainbow-trapping absorbers: Broadband, perfect and asymmetric sound absorption by subwavelength panels for transmission problems

Scientific Reports, 2017
Perfect, broadband and asymmetric sound absorption is theoretically, numerically and experimentally reported by using subwavelength thickness panels in a transmission problem. The panels are composed of a periodic array of varying crosssection waveguides,
N. Jiménez, V. Romero-García, V. Pagneux, J. Groby   +3 more
semanticscholar   +1 more source

Perfect control of reflection and refraction using spatially dispersive metasurfaces [PDF]

, 2016
Nonuniform metasurfaces (electrically thin composite layers) can be used for shaping refracted and reflected electromagnetic waves. However, known design approaches based on the generalized refraction and reflection laws do not allow realization of ...
V. Asadchy, M. Albooyeh, S. Tcvetkova, A. Díaz-Rubio, Y. Ra'di, Y. Ra'di, S. Tretyakov   +6 more
semanticscholar   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu, Yuxi Gong, Weilin Xu, Xingjian Sun, Gefei Jiang, Lei Qiu, Kexin Shi, Mengxing Wu, Yinjiao Fei, Jinling Yuan, Jinyan Luo, Yurong Li, Yuandong Cao, Minhong Pan, Shu Zhou   +14 more
wiley   +1 more source

Perfecting the Nearly Perfect [PDF]

Pure and Applied Mathematics Quarterly, 2008
We introduce a natural variant of the notion of nearly perfect complex. We show that this variant gives rise to canonical perfect complexes and prove several useful properties of this construction (including additivity of the associated Euler characteristics oil suitable exact triangles).
openaire   +1 more source