Results 71 to 80 of about 167,608 (323)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Positional Modulation Design Based on Multiple Phased Antenna Arrays

IEEE Access, 2019
Traditional directional modulation designs are normally based on a single phased array, with the assumption that eavesdroppers and desired users are in different directions.
Bo Zhang, Wei Liu
doaj   +1 more source

Altered amygdala effective connectivity in migraine without aura: evidence from resting‐state fMRI with Granger causality analysis

The Journal of Headache and Pain, 2021
Background Granger causality analysis (GCA) has been used to investigate the pathophysiology of migraine. Amygdala plays a key role in pain modulation of migraine attack. However, the detailed neuromechanism remained to be elucidated.
Xiaobin Huang, Di Zhang, Peng Wang, Cunnan Mao, Zhengfei Miao, Chunmei Liu, Chenjie Xu, Xindao Yin, Xinying Wu   +8 more
doaj   +1 more source

Comparing readout strategies to directly detect dark matter

, 2015
Over the past decades, several ideas and technologies have been developed to directly detect WIMP from the galactic halo. All these detection strategies share the common goal of discriminating a WIMP signal from the residual backgrounds.
Billard, J.
core   +3 more sources

Characterization of rings using direct-projective modules and direct-injective modules

Journal of Pure and Applied Algebra, 1993
A module \(M\) is said to be direct-projective if, given any summand \(N\) of \(M\) with projection \(p:M \to N\) and any epimorphism \(f: M\to N\), there is a \(g\in \text{End}_ R(M)\) such that \(gf = p\). Similarly, a module \(M\) is called direct-injective if given any summand \(N\) of \(M\) with injection \(i: N\to M\) and any monomorphism \(f: N ...
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Direct sums of Rickart modules

Journal of Algebra, 2012
A right \(R\)-module \(M\) with endomorphism ring \(S=\text{End}_R(M)\) is called a Rickart module if the right annihilator in \(M\) of any single element of \(S\) is a direct summand of \(M\). In general, the class of Rickart modules is not closed under direct sums, and it is interesting to study when it has this closure property.
Lee, Gangyong, Rizvi, S. Tariq, Roman, Cosmin S.   +2 more
openaire   +2 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Multipath-Enhanced Directional Modulation for Secure mmWave On-Body Communication

IEEE Open Journal of Antennas and Propagation
This paper proposes Directional Modulation (DM) for secure millimeter-wave (mmWave) on-body communication, where security is enhanced by leveraging multipath propagation.
Wasi Ur Rehman Khan, Max. J. Ammann, Hossein Raghib Hokmabadi, William G. Scanlon, Adam Narbudowicz   +4 more
doaj   +1 more source

Electromagnetic properties of graphene junctions

, 2008
A resonant chiral tunneling (CT) across a graphene junction (GJ) induced by an external electromagnetic field (EF) is studied. Modulation of the electron and hole wavefunction phases $\varphi$ by the external EF during the CT processes strongly impacts ...
A. Iyengar, A. Schuessler, A. Tselev, A.H. Castro Neto, D.A. Areshkin, E.A. Kim, E.H. Hwang, E.J. Mele, F. Giannazzo, G. Giovannetti, I. Pletikosić, J. Nilsson, J. Tworzydlo, J.H. Chen, J.H. Chen, J.H. Chen, K. Nakada, K. Nomura, K.I. Bolotin, K.I. Bolotin, K.S. Novoselov, L. Brey, L. Brey, M. Fujita, M.I. Katsnelson, M.I. Katsnelson, M.I. Katsnelson, P. Krekora, P.L. McEuen, S. Adam, S. E. Shafranjuk, S.E. Shafranjuk, S.E. Shafranjuk, S.E. Shafranjuk, S.E. Shafranjuk, S.V. Syzranov, T. Ando, T. Ando, T. Ando, T. Ando, T. Fuse, V.V. Cheianov, Y. Kawano, Y. Kawano, Y.-W. Tan   +44 more
core   +1 more source