Results 71 to 80 of about 2,377,765 (304)

TRANSITIVITY IN POINT-FREE TOPOLOGY [PDF]

Bulletin of the Australian Mathematical Society, 2009
AbstractThe main purpose of this paper is to develop a point-free notion of topological transitivity. First, we define transitive frame maps and transitive completely prime filters inFrm, the category of frames and frame maps. Then we discuss the relationship between these notions inFrmand the notions of topological transitive and transitive points ...
openaire   +1 more source

Electric field driven quantum phase transition between band insulator and topological insulator [PDF]

, 2009
We demonstrate theoretically that electric field can drive a quantum phase transition between band insulator to topological insulator in CdTe/HgCdTe/CdTe quantum wells.
Chang K (Chang Kai), Kai Chang, Jun Li, Li J (Li Jun), Li, J, Chinese Acad Sci, Inst Semicond, SKLSM, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: kchang@red.semi.ac.cn   +4 more
core   +1 more source

Topological Metal-Insulator Transition in Narrow Graphene Nanoribbons? [PDF]

, 2020
We show that very narrow armchair graphene nanoribbons (AGNRs) of length L and width of 2 zigzag-rings undergo a metal-insulator-like transition at a critical length of 10nm, where the energy gap drops rather abruptly, and the conductivity, estimated ...
Eleftherios, Economou, Aristides, Zdetsis   +1 more
core   +2 more sources

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

Molecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska, Stephany Gallardo, Nur S. Zainal, Leena Arora, Matthew Ellis, Maria‐Antoinette Lopez, Judith Austine, Sai Pittla, Serena J Chee, Aiman Alzetani, Emily C Shaw, Christian H Ottensmeier, Gareth J Thomas, Christopher J Hanley   +13 more
wiley   +1 more source

Accurate and noninvasive prostate cancer detection using plasma‐derived extracellular vesicle RNA

FEBS Open Bio, EarlyView.
Plasma extracellular vesicles were captured with WGA‐conjugated magnetic beads and profiled for RNA biomarkers. A three‐RNA panel (NM_024955, NR_047469, and NR_002564) distinguished prostate cancer from healthy controls and benign prostatic hyperplasia, supporting a simple, noninvasive approach to improve prostate cancer detection.
Hanping Wei, Haoran Wu, Wei Feng
wiley   +1 more source

Topological weak-measurement-induced geometric phases revisited

Frontiers in Physics
We present an analytical and numerical study of a class of geometric phase induced by weak measurements. In particular, we analyze the dependence of the geometric phase on the winding (W) of the polar angle (φ), upon a sequence of N weak measurements of ...
Graciana Puentes, Graciana Puentes
doaj   +1 more source

Signature of topological band crossing in ferromagnetic Cr_{1/3}NbSe_{2} epitaxial thin film

Physical Review Research, 2022
In intercalated transition metal dichalcogenides (I-TMDCs), transition metal intercalation introduces magnetic phases which in some cases induce topological band crossing. However, evidence of the topological properties remains elusive in such materials.
Bruno Kenichi Saika, Satoshi Hamao, Yuki Majima, Xiang Huang, Hideki Matsuoka, Satoshi Yoshida, Miho Kitamura, Masato Sakano, Tatsuto Hatanaka, Takuya Nomoto, Motoaki Hirayama, Koji Horiba, Hiroshi Kumigashira, Ryotaro Arita, Yoshihiro Iwasa, Masaki Nakano, Kyoko Ishizaka   +16 more
doaj   +1 more source

Topology, Phase Transitions, and the Spherical Model [PDF]

Physical Review Letters, 2005
The Topological Hypothesis states that phase transitions should be related to changes in the topology of configuration space. The necessity of such changes has already been demonstrated. We characterize exactly the topology of the configuration space of the short range Berlin-Kac spherical model, for spins lying in hypercubic lattices of dimension d ...
Risau-Gusman, S., Ribeiro-Teixeira, A. C., Stariolo, D. A.   +2 more
openaire   +3 more sources

CSF Cytokine Network Organization Predicts Progression Independent of Relapse and MRI Activity in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Progression independent of relapse activity is a major determinant of long‐term disability in multiple sclerosis, but its immunopathologic basis remains incompletely understood. We investigated whether relapse‐independent progression in radiologically stable relapsing–remitting multiple sclerosis is associated with distinct ...
Antonio Bruno, Matteo Conti, Ettore Dolcetti, Federica Azzolini, Angela Borrelli, Roberta Fantozzi, Mario Stampanoni Bassi, Giovanni Galifi, Giuseppe Maccarrone, Luca Montaguti, Marco Cervigni, Maddalena Dal Pozzo, Roberto Furlan, Annamaria Finardi, Girolama Alessandra Marfia, Marco Salvetti, Antonella Conte, Fabio Buttari, Diego Centonze, Luana Gilio   +19 more
wiley   +1 more source

Spin-controlled topological phase transition in non-Euclidean space

Frontiers of Optoelectronics
Modulation of topological phase transition has been pursued by researchers in both condensed matter and optics research fields, and has been realized in Euclidean systems, such as topological photonic crystals, topological metamaterials, and coupled ...
Zhuochen Du, Jinze Gao, Qiuchen Yan, Cuicui Lu, Xiaoyong Hu, Qihuang Gong   +5 more
doaj   +1 more source