Results 61 to 70 of about 197,943 (293)

BOLD specificity and dynamics evaluated in humans at 7 T: comparing gradient-echo and spin-echo hemodynamic responses.

PLoS ONE, 2013
High-field gradient-echo (GE) BOLD fMRI enables very high resolution imaging, and has great potential for detailed investigations of brain function. However, as spatial resolution increases, confounds due to signal from non-capillary vessels increasingly
Jeroen C W Siero, Nick F Ramsey, Hans Hoogduin, Dennis W J Klomp, Peter R Luijten, Natalia Petridou   +5 more
doaj   +1 more source

Nuclear Feedback in a Single Electron-Charged Quantum Dot under Pulsed Optical Control

, 2010
Electron spins in quantum dots under coherent control exhibit a number of novel feedback processes. Here, we present experimental and theoretical evidence of a feedback process between nuclear spins and a single electron spin in a single charged InAs ...
De Greve, Kristiaan, Forchel, Alfred, Friess, Benedikt, Hoefling, Sven, Kamp, Martin, Ladd, Thaddeus D., McMahon, Peter L., Press, David, Schneider, Christian, Yamamoto, Yoshihisa   +9 more
core   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

Molecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos, Gilar Gorji‐bahri, Lejla Gradjan, Julia Zajac, Kacper Gil, Yvonne Thokozile Nduku, Anna M. Blom   +6 more
wiley   +1 more source

Diagnostic accuracy of MRI in differentiating non-muscle invasive from muscle invasive bladder carcinoma taking histopathological staging as a standard

International Journal of Endorsing Health Science Research, 2014
To Determine Diagnostic accuracy Of MRI in differentiating non-muscle invasive from muscle invasive bladder carcinoma taking Histopathological staging as a standard.
Syed Muhammad Faiq, Khujasta Mehtab, Nazish Naz , Fatima Batool , Kiran Naz, Anwar Naqvi, Adeeb ul Hassan   +6 more
doaj   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Echo in Optical Lattices: Stimulated Revival of Breathing Oscillations

, 1997
We analyze a stimulated revival (echo) effect for the breathing modes of the atomic oscillations in optical lattices. The effect arises from the dephasing due to the weak anharmonicity being partly reversed in time by means of additional parametric ...
A. Bulatov, A. Gorlitz, A. Hemmerich, A. Kuklov, B. E. Vugmeister, E. L. Hahn, F. L. Moore, G. A. Garett, G. Grynberg, G. Raithel, H. Rabitz, I. Averbukh, I. Sh. Averbukh, J. C. Robinson, L. P. Pitaevskii, M. Raizen, P. Meystre, P. Rudy, P. S. Jessen, R. Graham, S. Conolly, V. Natarayan   +21 more
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

Unveiling contextual realities by microscopically entangling a neutron

Nature Communications, 2020
Exploring correlations in strongly entangled quantum materials is of interest. Here the authors generate a tunable spin-, trajectory-, and energy-entangled neutron beam using a neutron spin-echo interferometer and show violations of Clauser-Horne-Shimony-
J. Shen, S. J. Kuhn, R. M. Dalgliesh, V. O. de Haan, N. Geerits, A. A. M. Irfan, F. Li, S. Lu, S. R. Parnell, J. Plomp, A. A. van Well, A. Washington, D. V. Baxter, G. Ortiz, W. M. Snow, R. Pynn   +15 more
doaj   +1 more source

Spin diffusion in liquid 3He confined in nafen

, 2015
We report results of spin diffusion measurements in normal phase of liquid 3He confined in nafen. Nafen is a new type of aerogel and it consists of Al2O3 strands which are nearly parallel to one another at macroscopic distances. We examine two samples of
Dmitriev, V. V., Melnikovsky, L. A., Senin, A. A., Soldatov, A. A., Yudin, A. N.   +4 more
core   +1 more source

KLK7 overexpression promotes an aggressive phenotype and facilitates peritoneal dissemination in colorectal cancer cells

FEBS Open Bio, EarlyView.
KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani, Tobias Dreyer, Meriem Naim, Rea Lo Dico, Natalia A. Ignatenko, Viktor Magdolen, Dalila Darmoul   +6 more
wiley   +1 more source