Results 41 to 50 of about 1,197,573 (297)

Pseudospin Dependent One-Way Transmission in Graphene-Based Topological Plasmonic Crystals

Nanoscale Research Letters, 2018
Originating from the investigation of condensed matter states, the concept of quantum Hall effect and quantum spin Hall effect (QSHE) has recently been expanded to other field of physics and engineering, e.g., photonics and phononics, giving rise to ...
Pingping Qiu, Weibin Qiu, Junbo Ren, Zhili Lin, Zeyu Wang, Jia-Xian Wang, Qiang Kan, Jiao-Qing Pan   +7 more
doaj   +1 more source

Exosomes: The Role in Tumor Tolerance and the Potential Strategy for Tumor Therapy

Pharmaceutics, 2023
Drug and radiotherapy resistance is the primary cause of treatment failure and poor prognosis in patients with tumors. Exosomes are extracellular vesicles loaded with substances such as nucleic acids, lipids, and proteins that transmit information ...
Yun Lv, Xiaobo Du, Wenqiang Tang, Qian Yang, Feng Gao   +4 more
doaj   +1 more source

Graphene Dirac fermions in one-dimensional inhomogeneous field profiles: Transforming magnetic to electric field

, 2010
We show that the low-energy electronic structure of graphene under a one-dimensional inhomogeneous magnetic field can be mapped into that of graphene under an electric field or vice versa.
Louie, Steven G., Park, Cheol-Hwan, Tan, Liang Zheng   +2 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Optimal control theory for unitary transformations

, 2003
The dynamics of a quantum system driven by an external field is well described by a unitary transformation generated by a time dependent Hamiltonian. The inverse problem of finding the field that generates a specific unitary transformation is the subject
A. Bartana, A. Bartana, A.M. Weiner, A.P. Peirce, C. Rangan, C.M. Tesch, C.M. Tesch, G. Turinici, G.M. Huang, J. Vala, J.P. Palao, José P. Palao, K. Sundermann, L. Tian, M. Sugawara, R. Kosloff, R. Kosloff, R. Zadoyan, Ronnie Kosloff, Ronnie Kosloff, S. Lloyd, S.E. Sklarz, S.G. Schirmer, S.G. Shirmer, T. Brixner, T. Hornung, V. Ramakrishna, V. Ramakrishna, W. Zhu, Y. Maday, Y. Ohtsuki, Y.S. Weinstein, Z. Amitay   +32 more
core   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Transformation through research? The AC+erm Project and Electronic Records Management [PDF]

, 2009
The article focuses on the three-year project being undertaken by Northumbria University in Northumbria, England and funded by the Arts & Humanities Research Council (ANRH) named as AC+erm. The AC+erm project is a qualitative study composed of three main
Childs, Sue, Hardiman, Rachel, McLeod, Julie   +2 more
core  

Electronic Transformation of Local Government

International Journal of Electronic Government Research, 2011
The paper examines the critical success factors for employees’ adoption of the unified Local Government Access Framework (LGAF), deployed for the Central Union of Municipalities and Communities of Greece. Following an extensive bibliographical survey, an initial conceptual framework (CF1) based on the Technology Acceptance Model (TAM) for LGAF adoption
Stamati, T., Martakos, D.
openaire   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source