Results 71 to 80 of about 4,781,981 (326)

A Remote Two-Point Magnetic Localization Method Based on SQUID Magnetometers and Magnetic Gradient Tensor Invariants

Sensors
In practical application, existing two-point magnetic gradient tensor (MGT) localization methods have a maximum detection distance of only 2.5 m, and the magnetic moment vectors of measured targets are all unknown.
Yingzi Zhang, Gaigai Liu, Chen Wang, Longqing Qiu, Hongliang Wang, Wenyi Liu   +5 more
doaj   +1 more source

Constraints from Inflation on Scalar-Tensor Gravity Theories

, 1995
We show how observations of the perturbation spectra produced during inflation may be used to constrain the parameters of general scalar-tensor theories of gravity, which include both an inflaton and dilaton field.
A. D. Linde, A. R. Liddle, A. R. Liddle, A. R. Liddle, A. R. Liddle, A.D. Linde, C. Brans, C. Mathiazhagan, C.G. Callan, C.M. Will, D. H. Lyth, D. I. Kaiser, D. La, D. S. Salopek, D. Wands, David Wands, E. J. Copeland, E. J. Copeland, E.S. Fradkin, J. A. Peacock, J. C. Hwang, J. D. Barrow, J. D. Barrow, J. D. Barrow, J. Garcí a Bellido, J. Garcí a Bellido, J. Garcí a Bellido, J. Garcí a Bellido, J. Garcí a Bellido, J. M. Bardeen, J. P. Mimoso, J. R. Bond, J.A. Casas, J.A. Casas, J.D. Barrow, Juan García-Bellido, K. M. Górski, K. Nordtvedt, K. Nordtvedt, L. Grischuk, L. Grischuk, L.F. Abbott, L.J. Garay, M. Abramowitz, M. S. Turner, M. S. Turner, N. Deruelle, N. Deruelle, N. Vittorio, P. J. Steinhardt, P. Jordan, P. Teyssandier, P.G. Bergmann, P.J. Steinhardt, R. Cen, R.H. Dicke, R.V. Wagoner, S. Mollerach, S. Mollerach, T. Damour, T. Damour, T. Damour, T. Damour, V. F. Mukhanov   +63 more
core   +1 more source

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz, Carl D. Langefeld, Mary E. Comeau, Miranda C. Marion, Tyler P. Behymer, Lee A. Gilkerson, Padmini Sekar, Weihong Yuan, Vivek Khandwala, Brady J. Williamson, Thomas Maloney, Achala Vagal, Pierce Boyne, Kari Dunning, Matthew L. Flaherty, Steven J. Kittner, Prachi Mehndiratta, Gunjan Y. Parikh, Michael L. James, David Roh, Fernando D. Testai, Farhaan S. Vahidy, James Thornton, Ranjit Bagga, Daniel Woo, Stacie L. Demel   +25 more
wiley   +1 more source

Tensor Correlations Measured in 3He(e,e'pp)n

, 2010
We have measured the 3He(e,e'pp)n reaction at an incident energy of 4.7 GeV over a wide kinematic range. We identified spectator correlated pp and pn nucleon pairs using kinematic cuts and measured their relative and total momentum distributions. This is
Adhikari, K.P., Aghasyan, M., Amarian, M., Anghinolfi, M., Avakian, H., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Bennett, R.P., Berman, B.L., Biselli, A.S., Bookwalter, C., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Bültmann, S., Carman, D.S., Crede, V., Daniel, A., Dashyan, N., De Sanctis, E., De Vita, R., Deur, A., Dey, B., Dickson, R., Djalali, C., Dodge, G.E., Doughty, D., Dupre, R., D’Angelo, A., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fegan, S., Gabrielyan, M.Y., Gilfoyle, G.P., Giovanetti, K.L., Gohn, W., Gothe, R.W., Griffioen, K.A., Guidal, M., Guo, L., Gyurjyan, V., Hakobyan, H., Hanretty, C., Hicks, K., Holtrop, M., Hyde, C.E., Ilieva, Y., Ireland, D.G., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F.J., Konczykowski, P., Kubarovsky, V., Kuhn, S.E., Kuleshov, S.V., Kuznetsov, V., Kvaltine, N.D., Laget, J.M., Livingston, K., Lu, H.Y., MacGregor, I.J.D., Markov, N., Mayer, M., McAndrew, J., McKinnon, B., Meyer, C.A., Mikhailov, K., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Moutarde, H., Munevar, E., Nadel-Turonski, P., Nepali, C., Niccolai, S., Niculescu, G., Niculescu, I., Osipenko, M., Ostrovidov, A.I., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Pereira, S., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Protopopescu, D., Ricco, G., Ripani, M., Rosner, G., Rossi, P., Sabatié, F., Salgado, C., Schumacher, R. A., Seraydaryan, H., Smith, G.D., Sober, D. I., Sokhan, D., Stepanyan, S., Stepanyan, S.S., Stoler, P., Strauch, S., Taiuti, M., Tang, W., Taylor, C.E., Tedeschi, D.J., Ungaro, M., Vineyard, M.F., Voutier, E., Watts, D.P., Weinstein, L.B., Weygand, D.P., Wood, M.H., Zhao, B., Zhao, Z.W.   +127 more
core   +3 more sources

Combining Diffusion Tensor Metrics and DSC Perfusion Imaging: Can It Improve the Diagnostic Accuracy in Differentiating Tumefactive Demyelination from High-Grade Glioma?

American Journal of Neuroradiology, 2017
Fourteen patients with tumefactive demyelinating lesions and 21 patients with high-grade gliomas underwent MR imaging with conventional, DTI, and DSC perfusion imaging. Conventional imaging sequences had a sensitivity of 80.9% and specificity of 57.1% in
S. Hiremath, A. Muraleedharan, S. Kumar, C. Nagesh, C. Kesavadas, M. Abraham, T. Kapilamoorthy, B. Thomas   +7 more
semanticscholar   +1 more source

Glymphatic Dysfunction Reflects Post‐Concussion Symptoms: Changes Within 1 Month and After 3 Months

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mild traumatic brain injury (mTBI) may alter glymphatic function; however, its progression and variability remain obscure. This study examined glymphatic function following mTBI within 1 month and after 3 months post‐injury to determine whether variations in glymphatic function are associated with post‐traumatic symptom severity ...
Eunkyung Kim, Han Gil Seo, Roh‐Eul Yoo, Byung‐Mo Oh   +3 more
wiley   +1 more source

Experimental determination of Rashba and Dresselhaus parameters and g*-factor anisotropy via Shubnikov-de Haas oscillations

New Journal of Physics, 2017
The spin splitting of conduction band electrons in inversion-asymmetric InGaAs/InP quantum wells (QWs) is studied by Shubnikov-de Haas measurements combining the analysis of beating patterns and coincidence measurements in doubly tilted magnetic fields ...
F Herzog, H Hardtdegen, Th Schäpers, D Grundler, M A Wilde   +4 more
doaj   +1 more source

Conformal tensor discontinuities in general relativity [PDF]

Communications in Mathematical Physics, 1968
The postulate is made that across a given hypersurfaceN the metric and its first derivatives are continuous. This postulate is used to derive conditions which must be satisfied by discontinuities in the Riemann tensor acrossN. These conditions imply that the conformal tensor jump is uniquely determined by the stress-energy tensor discontinuity ifN is ...
openaire   +3 more sources

NODDI and Tensor-Based Microstructural Indices as Predictors of Functional Connectivity

PLoS ONE, 2016
In Diffusion Weighted MR Imaging (DWI), the signal is affected by the biophysical properties of neuronal cells and their relative placement, as well as extra-cellular tissue compartments. Typically, microstructural indices, such as fractional anisotropy (
F. Deligianni, D. Carmichael, Gary Zhang, C. Clark, J. Clayden   +4 more
semanticscholar   +1 more source

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung, E‐nae Cheong, Jungmin So, Heung‐Won Kang, Yangsean Choi, Eun‐Jae Lee, Hyunjin Kim, Young‐Min Lim   +7 more
wiley   +1 more source