Results 91 to 100 of about 3,484,802 (301)

Oxygen diffusion barrier coating [PDF]

, 1987
A method for coating a titanium panel or foil with aluminum and amorphous silicon to provide an oxygen barrier abrogating oxidation of the substrate metal is developed.
Clark, Ronald K., Unnam, Jalaiah
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Une identité impériale sans Empire? Le sens de la politique de décolonisation britannique

Revue LISA, 2007
Britain’s history as a nation and a great power cannot be dissociated from the concept of imperialism. The object of this article will be to study the way Britain managed to adapt her imperial identity to the post-colonial world that her own ...
Virginie Barrier-Roiron
doaj   +1 more source

A Simulated Microgravity Environment Causes a Sustained Defect in Epithelial Barrier Function. [PDF]

, 2019
Intestinal epithelial cell (IEC) junctions constitute a robust barrier to invasion by viruses, bacteria and exposure to ingested agents. Previous studies showed that microgravity compromises the human immune system and increases enteropathogen virulence.
Alvarez, Rocio, Marchelletta, Ronald R, McCole, Declan F, Prisk, G Kim, Sayoc-Becerra, Anica, Stork, Cheryl A   +5 more
core   +1 more source

Periodic Quantum Tunneling and Parametric Resonance with Cigar-Shaped Bose-Einstein Condensates

, 2002
We study the tunneling properties of a cigar-shaped Bose-Einstein condensate by using an effective 1D nonpolynomial nonlinear Schr\"odinger equation (NPSE).
A Parola, Arnold V I, Fribel S, Gross E P, L Reatto, L Salasnich, Landau L D, Pitaevskii L P, Pitaevskii L P, Salasnich L, Salasnich L, Zapata I   +11 more
core   +1 more source

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Dynamic splitting of a Bose-Einstein Condensate

, 2000
We study the dynamic process of splitting a condensate by raising a potential barrier in the center of a harmonic trap. We use a two-mode model to describe the phase coherence between the two halves of the condensate.
A. Galindo, A. Sinatra, A. Sinatra, A. Smerzi, A. Smerzi, A.J. Leggett, A.J. Leggett, B.P. Anderson, C. Menotti, C.K. Law, D. Jaksch, E.M. Wright, F. Sols, G.J. Milburn, I. Zapata, J. I. Cirac, J. Javanainen, J. Javanainen, J. Javanainen, J. Javanainen, J. R. Anglin, K. Berg-Sørensen, K. Mølmer, M. Lewenstein, M.L. Chiofalo, P. Villain, P. Zoller, R.W. Spekkens, V.M. Perez-García, W. Ketterle   +29 more
core   +1 more source

DDX3X induces mesenchymal transition of endothelial cells by disrupting BMPR2 signaling

FEBS Open Bio, EarlyView.
Elevated DDX3X expression led to downregulation of BMPR2, a key regulator of endothelial homeostasis and function. Our co‐immunoprecipitation assays further demonstrated a molecular interaction between DDX3X and BMPR2. Notably, DDX3X promoted lysosomal degradation of BMPR2, thereby impairing its downstream signaling and facilitating endothelial‐to ...
Yu Zhang, Jing Wang, De‐Hui Qian, Yang‐Fan Lv, Tian‐Le Cheng, Da‐Peng Wang, Jing Zhang, Ye Fan   +7 more
wiley   +1 more source

Possibility of the tunneling time determination

, 2001
We show that it is impossible to determine the time a tunneling particle spends under the barrier. However, it is possible to determine the asymptotic time, i.e., the time the particle spends in a large area including the barrier.
A. Enders, A. I. Baz’, A. M. Steinberg, A. Ranfagni, C. R. Leavens, C. R. Leavens, C. R. Leavens, Ch. Spielmann, D. Esteve, D. Sokolovski, D. Sokolovski, E. H. Hauge, G. Iannaccone, J. C. Garrison, J. G. Muga, J. R. Fletcher, Julius Ruseckas, L. A. MacColl, M. Büttiker, N. Grot, N. Yamada, P. Guéret, P. Guéret, Ph. Balcou, R. Landauer, R. S. Dumont, R. Y. Chiao, S. Brouard, T. E. Hartmann, V. Delgado, V. S. Olkhovsky, W. Heitmann   +31 more
core   +1 more source