نتایج جستجو برای: l69
تعداد نتایج: 210 فیلتر نتایج به سال:
positron plasma for antihydrogen production C. Amole, M. D. Ashkezari, M. Baquero-Ruiz, W. Bertsche, E. Butler, A. Capra, C. L. Cesar, M. Charlton, A. Deller, S. Eriksson, J. Fajans, T. Friesen, M. C. Fujiwara, D. R. Gill, A. Gutierrez, J. S. Hangst, W. N. Hardy, M. E. Hayden, C. A. Isaac, S. Jonsell, L. Kurchaninov, A. Little, N. Madsen, J. T. K. McKenna, S. Menary, S. C. Napoli, K. Olchanski,...
*Correspondence: Claire Mahaffey, Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Nicholson Building, 4 Brownlow Street, Liverpool, Merseyside L69 3GP, UK e-mail: [email protected] Phosphorus is an essential nutrient for all life on earth. In the ocean, the most bioavailable form of phosphorus is inorganic phosphate, but in the extensive subtropical gyres, phosphat...
In this paper, we propose a chaotic interleaving scheme for the continuous phase modulation based single-carrier frequency-domain equalization (CPM-SCFDE) system. Chaotic interleaving is used in this scheme to generate permuted versions from the sample sequences to be transmitted, with low correlation among their samples, and hence a better bit error rate (BER) performance can be obtained. The ...
While numerous studies have compared urban and rural fertility rates across Europe, virtually no studies have distinguished suburbs as a distinct residential context. This study examines fertility variation across different residential contexts in four Northern European countries: Denmark, Finland, Norway and Sweden. We move beyond the conventional urban-rural focus of most previous studies of ...
Partition functions, also known as homomorphism functions, form a richfamily of graph invariants that contain combinatorial invariants such as thenumber of k-colourings or the number of independent sets of a graph and alsothe partition functions of certain “spin glass” models of statistical physicssuch as the Ising model.Building on earlier work by Dyer and Greenhill [7]...
A. M. Hurst, P. A. Butler, D. G. Jenkins, P. Delahaye, F. Wenander, F. Ames, C. J. Barton, T. Behrens, A. Bürger, J. Cederkäll, E. Clément, T. Czosnyka, T. Davinson, G. de Angelis, J. Eberth, A. Ekström, S. Franchoo, G. Georgiev, A. Görgen, R.-D. Herzberg, M. Huyse, O. Ivanov, J. Iwanicki, G. D. Jones, P. Kent, U. Köster, T. Kröll, R. Krücken, A. C. Larsen, M. Nespolo, M. Pantea, E. S. Paul, M....
Recent studies showed that p34(SEI-1), also known as TRIP-Br1 or SEI-1, plays a dual role in the regulation of cell-cycle progression. It exhibits the transactivation activity and regulates a number of genes required for G1/S transition, while it also binds and activates cyclin-dependent kinase 4 (CDK4) independent of the inhibitory activity of p16. The goals of this paper are to further dissec...
We propose a new approach for modeling non-linear multivariate interest rate processes based on time-varying copulas and reducible stochastic differential equations (SDEs). In the modeling of the marginal processes, we consider a class of non-linear SDEs that are reducible to Ornstein-Uhlenbeck (OU) process or Cox, Ingersoll, and Ross (1985) (CIR) process. The reducibility is achieved via a non...
The effects of nicotine on carotenoid biosynthesis have been investigated in a non-photosynthetic Flavobacterium strain 0147, and in two photosynthetic bacteria, Rhodopseudomonas spheroides and Rhodomicrobium vanrtielii. In Flavobacterium, nicotine inhibits the synthesis of the nOrmal main carotenoid, zeaxanthin, and causes an accumulation of lycopene at high nicotine concentration, and rubixan...
*Correspondence: Andrew J. Biggin, Geomagnetism Laboratory, Oliver Lodge Laboratories, School of Environmental Sciences, University of Liverpool, Oxford Road, Liverpool L69 7ZE, UK e-mail: [email protected] Records of reversal frequency support forcing of the geodynamo over geological timescales but obtaining these for earlier times (e.g., the Precambrian) is a major challenge. Changes in the me...
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