Results 71 to 80 of about 905,867 (296)

Three-dimensional Doppler, polarization-gradient, and magneto-optical forces for atoms and molecules with dark states

New Journal of Physics, 2016
We theoretically investigate the damping and trapping forces in a three-dimensional magneto-optical trap (MOT), by numerically solving the optical Bloch equations. We focus on the case where there are dark states because the atom is driven on a ‘type-II’
J A Devlin, M R Tarbutt
doaj   +1 more source

Photoionization spectroscopy of excited states of cold cesium dimers

, 2010
Photoionization spectroscopy of cold cesium dimers obtained by photoassociation of cold atoms in a magneto-optical trap is reported here. In particular, we report on the observation and on the spectroscopic analysis of all the excited states that have ...
Allegrini, Maria, Aymar, Mireille, Bouloufa, Nadia, Chotia, Amodsen, Comparat, Daniel, Dulieu, Olivier, Favilla, Elena, Fioretti, Andrea, Gabbanini, Carlo, Pillet, Pierre, Viteau, Matthieu   +10 more
core   +1 more source

The PI3Kδ inhibitor roginolisib (IOA‐244) preserves T‐cell function and activity

Molecular Oncology, EarlyView.
Identification of novel PI3K inhibitors with limited immune‐related adverse effects is highly sought after. We found that roginolisib and idelalisib inhibit chronic lymphocytic leukemia (CLL) cells and Treg suppressive functions to similar extents, but roginolisib affects cytotoxic T‐cell function and promotion of pro‐inflammatory T helper subsets to a
Elise Solli, Alessio Bevilacqua, Mathias Wenes, Denis Migliorini, Lars van der Veen, Sigrid S Skånland, Giusy Di Conza, Kjetil Taskén   +7 more
wiley   +1 more source

Hyperfine structure of the hydroxyl free radical (OH) in electric and magnetic fields

New Journal of Physics, 2015
We investigate single-particle energy spectra of the hydroxyl free radical (OH) in the lowest electronic and rovibrational level under combined static electric and magnetic fields, as an example of heteronuclear polar diatomic molecules.
Kenji Maeda, Michael L Wall, Lincoln D Carr   +2 more
doaj   +1 more source

Improved setup for producing slow beams of cold molecules using a rotating nozzle

, 2009
Intense beams of cold and slow molecules are produced by supersonic expansion out of a rapidly rotating nozzle, as first demonstrated by Gupta and Herschbach.
A. M. Wodtke, A. Slenczka, D. R. Miller, F. Masnou-Seeuws, F. Stienkemeier, H. Pauly, I. W. Smith, M. Mudrich, M. Strebel, R. B. Bernstein, R. Krems, R. Levine   +11 more
core   +1 more source

The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules [PDF]

, 2011
Beams of atoms and molecules are stalwart tools for spectroscopy and studies of collisional processes. The supersonic expansion technique can create cold beams of many species of atoms and molecules.
Ackermann R. J., Amirav A., Anderson D. T., Anderson J. B., Anderson M. H., André A., Ball C. D., Ball C. D., Ball C. D., Barkov L. M., Barry J. F., Beaky M. M., Bergmann K., Bethlem H. L., Bethlem H. L., Bethlem H. L., Bickman S., Bird G., Blatt S., Bouchiat M. A., Budker D., Campargue R., Campbell W., Campbell W., Campbell W. C., Campbell W. C., Carr L. D., Chichkov B. N., Chin C., Chin C., Commins E. D., Conti R., Davis G. M., Davis K. B., deCarvalho R., DeMille D., DeMille D., DeMille D., Di Rosa M. D., Dietz T. G., Dirac P. A. M., Doret S. C., Doyle J., Dzuba V. A., Edvardsson D., Even U., Falkenau M., Fernandez De La Mora J., Flambaum V., Flambaum V., Flambaum V. V., Fletcher D. A., Fortson N., Fox R., Frankcombe T. J., Fraser H. J., Friedrich B., Gilgenbach R. M., Gilijamse J. J., Gilijamse J. J., Ginges J., Greiner M., Guèna J., Hasted J. B., Hatakeyama A., Herzberg G., Hillenkamp M., Hinds E. A., Hoekstra S., Hopkins J. B., Hsin-I Lu, Hudson E. R., Hudson J. J., Hummon M., Hummon M., Hutzler N. R., Isaev T., John M. Doyle, Junglen T., Ketterle W., Khriplovich I. B., Kimball D., Klemperer W., Krems R. V., Krems R. V., Kuwamoto T., Labzovskii L., Lahaye T., Leanhardt A. E., Lee J., Levy D. H., Li K., Lovejoy C. M., Lu H., Lu M.-J., Lu M.-J., Luria K., Maussang K., Maxwell S. E., McClelland J. J., Mengel M., Messer J. K., Metcalf H. J., Micheli A., Ni K.-K., Ni K.-K., Nicholas R. Hutzler, Olander D. R., Ospelkaus S., Pandey K., Pathria R. K., Patterson D., Patterson D., Patterson D., Pauly H., Pobell F., Purcell E. M., Raab E. L., Rabl P., Ramsey N., Rangwala S. A., Ronningen T. J., Rosenband T., Rowe B. R., Rushchanskii K. Z., Sabbah H., Sandars P. G. H., Sandars P. G. H., Sawyer B. C., Sawyer B. C., Schnell M., Scoles G., Shafer-Ray N., Shuman E. S., Shuman E. S., Simon J., Skoff S. M., Smith J. H., Solmeyer N. E., Sommer C., Sommer C., Sone Y., Speller E., Stuhl B. K., Sukachev D., Sushkov A., Sushkov O. P., Szewc C., Tarbutt M. R., Tsigutkin K., Tu M.-F., Uhlenberg G., van Buuren L. D., van de Meerakker S. Y. T., van de Meerakker S. Y. T., Vogl U., Von Kármán T., Vutha A. C., Weinstein J. D., Weinstein J. D., Willey D. R., Willey D. R., Wood C. S., Youn S. H., Zel’dovich Y. B., Zwierlein M. W.   +165 more
core   +2 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2

New Journal of Physics, 2015
We report results for reaction and vibrational quenching of the collision D with para-H _2 ( $v,j=0$ ) and ortho-H _2 ( $v,j=1$ ) at cold and ultracold temperatures.
Ionel Simbotin, Robin Côté
doaj   +1 more source

Molecules and Ions at Very Low Temperatures

CHIMIA, 2009
The generation and study of 'cold' gas-phase molecules characterised by very low translational temperatures Ttrans ? 1 K is an upcoming field of research in physical chemistry which has received considerable attention over the past years.
Stefan Willitsch
doaj   +1 more source

Cold induces micro- and nano-scale reorganization of lipid raft markers at mounds of T-cell membrane fluctuations. [PDF]

PLoS ONE, 2009
Whether and how cold causes changes in cell-membrane or lipid rafts remain poorly characterized. Using the NSOM/QD and confocal imaging systems, we found that cold caused microscale redistribution of lipid raft markers, GM1 for lipid and CD59 for protein,
Yong Chen, Jie Qin, Jiye Cai, Zheng W Chen   +3 more
doaj   +1 more source