Results 31 to 40 of about 1,459,445 (287)

Linear breakwater reefs of the greater Caribbean: Classification, distribution & morphology

PLoS ONE, 2022
Geomorphic differences among Caribbean reefs have long been noted. These differences are considered to reflect the presence of reefs in different stages of development, following an incomplete recovery from rapid deglacial sea-level rise.
Paul Blanchon, Alexis E. Medina-Valmaseda, Eduardo Islas-Domínguez, Edlin Guerra-Castro, David Blakeway, Joaquín Rodrigo Garza Pérez, Adan Guillermo Jordan-Garza, Ismael Mariño-Tapia, Paula A. Zapata-Ramírez   +8 more
doaj   +2 more sources

The Prevalence and Factors Associated with Low Back Pain Among People with Flat Feet

International Journal of General Medicine, 2021
Adel F Almutairi,1 Ala’a BaniMustafa,1 Tagreed Bin Saidan,1 Shoug Alhizam,1 Mahmoud Salam1,2 1Science and Technology Unit, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia ...
Almutairi AF, BaniMustafa A, Bin Saidan T, Alhizam S, Salam M   +4 more
doaj  

Holographic Lieb lattice and gapping its Dirac band

Journal of High Energy Physics, 2023
We first point out that the Laia-Tong model realizes the Lieb lattice in the holographic setup. It generates a flat band of sharp particle spectrum together with a Dirac band of unparticle spectrum.
Young-Kwon Han, Jeong-Won Seo, Taewon Yuk, Sang-Jin Sin   +3 more
doaj   +1 more source

Renormalization of the nonequilibrium dynamics of fermions in a flat FRW universe [PDF]

, 1999
We derive the renormalized equations of motion and the renormalized energy-momentum tensor for fermions coupled to a spatially homogeneous scalar field (inflaton) in a flat FRW geometry.
A. L. Maroto, A. L. Maroto, A. Linde, C. Molina-Paris, Carsten Pätzold, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. J. H. Chung, E. W. Kolb, F. Cooper, F. Cooper, G. F. Giudice, G. F. Giudice, G. F. Giudice, J. Baacke, J. Baacke, J. Baacke, J. Baacke, J. Baacke, Jürgen Baacke, L. Kofman, L. Parker, N. D. Birrell, P. B. Greene, P. C. W. Davies, P. Greene, R. Kallosh, S. A. Ramsey, S. G. Mamaev, S. G. Mamaev, S. Habib, S. Tsujikawa, S. Tsujikawa, S. Tsujikawa, T. S. Bunch, T. S. Bunch, Y. Shtanov   +39 more
core   +2 more sources

Low-Loss Low-Back-Reflection Coupling of Hollow-Core Photonic Bandgap Fiber With Integrated-Optic Circuit in Fiber Optic Gyroscope

IEEE Access, 2020
Photonic bandgap fiber-optic gyroscope has excellent environment adaptability and shows great prospect. The coupling between hollow-core photonic bandgap fiber coil and integrated-optic circuit is a crucial technology in photonic bandgap fiber-optic ...
Ningfang Song, Cheng He, Xiaobin Xu, Jiaqi Liu, Fuyu Gao, Yunhao Zhu   +5 more
doaj   +1 more source

Flat foot and spinal degeneration: Evidence from nationwide population-based cohort studyKey points

Journal of the Formosan Medical Association, 2021
Background/Purpose: Flat foot can alter the lower limb alignment and cause knee and back pain. To explore the association between flat foot and spinal degeneration.
Mei-Chia Chou, Jing-Yang Huang, Yao-Min Hung, Wuu-Tsun Perng, Renin Chang, James Cheng-Chung Wei   +5 more
doaj   +1 more source

Flat Information Geometries in Black Hole Thermodynamics

, 2006
The Hessian of either the entropy or the energy function can be regarded as a metric on a Gibbs surface. For two parameter families of asymptotically flat black holes in arbitrary dimension one or the other of these metrics are flat, and the state space ...
A. Hankey, D. Lynden-Bell, D. Tranah, D.A. Johnston, G. Arcioni, I. Bengtsson, Ingemar Bengtsson, J. Katz, J.D. Nulton, J.E. Å man, J.E. Å man, Jan E. Åman, M. Bañados, Narit Pidokrajt, P.C.W. Davies, R. Emparan, R. Penrose, R. Sorkin, R.C. Myers, S. Ferrara, S.W. Hawking   +20 more
core   +2 more sources

Cosmic microwave background anisotropies in multi-connected flat spaces

, 2003
This article investigates the signature of the seventeen multi-connected flat spaces in cosmic microwave background (CMB) maps. For each such space it recalls a fundamental domain and a set of generating matrices, and then goes on to find an orthonormal ...
A. Benoît, A. Benoît, A. de Oliveira-Costa, A.A. Starobinsky, Alain Riazuelo, B. Roukema, B. Roukema, C. Adams, C.R. Contaldi, D. Spergel, D. Stevens, D.D. Sokolov, E. Feodoroff, E. Gausmann, E. Scannapieco, G. Efstathiou, G.F.R. Ellis, I.Y. Sokolov, J. Levin, J. Levin, J. Weeks, J.-P. Luminet, J.-P. Uzan, J.-P. Uzan, J.-P. Uzan, J.M. Cline, J.R. Gott, Jean-Philippe Uzan, Jean-Pierre Luminet, Jeffrey Weeks, K.T. Inoue, K.T. Inoue, K.T. Inoue, L. Bieberbach, L. Bieberbach, M. Lachièze-Rey, M. Tegmark, N.J. Cornish, R. Bowen, R. Lehoucq, Roland Lehoucq, W. Novacki   +41 more
core   +3 more sources

Segmental giant café au lait macule in neurofibromatosis 1

Pigment International, 2018
A 2-year-old male child born of third degree consanguineous marriage was brought to dermatology outpatient department with multiple dark colored flat lesions over body and one large dark colored flat lesion over right side of body since birth.
Bhagyashree B Supekar, Kinjal D Rambhia, Jayesh I Mukhi, Rajesh P Singh   +3 more
doaj   +1 more source

Initial singularity free quantum cosmology in two-dimensional Brans-Dicke theory [PDF]

, 1998
We consider two-dimensional Brans-Dicke theory to study the initial singularity problem. It turns out that the initial curvature singularity can be finite for a certain Brans-Dicke constant $\omega$ by considering the quantum back reaction of the ...
A. Bilal, A. Fabbri, C. G. Callan, F. D. Mazzitelli, J. G. Russo, J. G. Russo, J. Gamboa, J. Navarro-Salas, J. Russo, M. A. R. Osorio, M. Gasperini, M. Gasperini, M. Gasperini, M. Hotta, Myung Seok Yoon, S. Bose, S. Odintsov, S.-J. Rey, T. Kodoyoshi, W. T. Kim, W. T. Kim, Won Tae Kim   +21 more
core   +2 more sources