Results 41 to 50 of about 1,271,785 (295)

Mean first-passage time of surface-mediated diffusion in spherical domains

, 2011
We present an exact calculation of the mean first-passage time to a target on the surface of a 2D or 3D spherical domain, for a molecule alternating phases of surface diffusion on the domain boundary and phases of bulk diffusion.
A. Singer, A. Singer, A.F. Cheviakov, B. Alberts, C. Chevalier, C. Loverdo, C. Loverdo, C.P. Haynes, D. S. Grebenkov, D.S. Grebenkov, E. Agliari, G. Adam, G. Barton, G. Oshanin, G.C. Bond, H. Sano, I. Eliazar, I.V. Grigoriev, M. Coppey, M. Slutsky, M.A. Lomholt, O. Bénichou, O. Bénichou, O. Bénichou, O. Bénichou, O. Bénichou, O. Bénichou, O. Bénichou, O. Bénichou, O.G. Berg, P. E. Levitz, P. Hänggi, P. Levitz, P. Levitz, R. Voituriez, R.D. Astumian, S. Condamin, S. Condamin, S. Condamin, S. Condamin, S. Pillay, S. Redner, S. Reuveni, S.A. Rice, V. Tejedor, Z. Schuss   +45 more
core   +1 more source

Demonstrating the decoupling regime of the electron-phonon interaction in a quantum dot using chirped optical excitation [PDF]

, 2017
Excitation of a semiconductor quantum dot with a chirped laser pulse allows excitons to be created by rapid adiabatic passage. In quantum dots this process can be greatly hindered by the coupling to phonons.
Chauveau, Jean-Michel, Kaldewey, Timo, Kuhlmann, Andreas V., Kuhn, Tilmann, Ludwig, Arne, Lüker, Sebastian, Reiter, Doris E., Valentin, Sascha R., Warburton, Richard J., Wieck, Andreas D.   +9 more
core   +2 more sources

Variable orifice flow regulator [PDF]

, 1991
A flow regulator for high-pressure fluids at elevated temperatures includes a body having a flow passage extending between inlet and outlet openings. First and second orifice members are arranged in the flow passage so at least one of the orifice members
Christianson, Rollin C.
core   +1 more source

First Passage Properties of the Erdos-Renyi Random Graph

, 2004
We study the mean time for a random walk to traverse between two arbitrary sites of the Erdos-Renyi random graph. We develop an effective medium approximation that predicts that the mean first-passage time between pairs of nodes, as well as all moments ...
Ahuja R K, Aldous D Fill J A, Almaas E, ben-Avraham D, Bollobás B, Bray A J, Cooper C Frieze A, D ben-Avraham, Doyle P G Snell J L, Doyle P G Snell J L, Erd?s P, Grimmett G, Grimmett G Kesten H, Harris T E, Hughes B D, Janson S, Kirkpatrick S, Koplik J, Lovász L, Lyons R, Masuda N, Monasson R, Redner S, S Redner, V Sood, van Kampen N G, Woess W   +26 more
core   +1 more source

Rate of passage of digesta in sheep [PDF]

British Journal of Nutrition, 1973
1. Three groups of sheep receiving 400, 800 and 1200 g lucerne chaff/d in equal hourly meals were killed. The large intestines were removed and divided into segments 15 cm long to provide information on the amounts and dry-matter contents of digesta and on the rates of passage of digesta and absorption of water along the large intestine.2.
W L, Grovum, V J, Williams
openaire   +2 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Inhomogeneous first-passage percolation [PDF]

, 2013
We study first-passage percolation where edges in the left and right half-planes are assigned values according to different distributions. We show that the asymptotic growth of the resulting inhomogeneous first-passage process obeys a shape theorem, and ...
Ahlberg, Daniel, Damron, Michael, Sidoravicius, Vladas   +2 more
core  

Dimension improvement in Dhar's refutation of the Eden conjecture

, 2017
We consider the Eden model on the d-dimensional hypercubical unoriented lattice , for large d. Initially, every lattice point is healthy, except the origin which is infected.
Bertrand, Quentin, Pertinand, Jules
core   +1 more source

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine, Ofélie Trudeau‐Ferrin, Caroline Laverdière, Patrick Hamel, Rosanne Superstein, Bénédicte Koukoui, Carole Provost, Paul C. Nathan, Vijay Ramaswamy, Furqan Shaikh, Brenda Gallie, Ashwin Mallipatna, Stephanie Kletke, Helen Dimaras, Hallie Coltin   +14 more
wiley   +1 more source

Evaluation of phosphate sources using ruminal fiber transit kinetics methodology

Frontiers in Animal Science
IntroductionSince the low phosphorus content is one of the reasons for the low degradation of fiber in roughage such as pasture and by-products, fiber transit kinetics can be an important tool to evaluate differences in digestion depending on phosphorus ...
Claudiney de Jesus Couto, Bruna Cardoso Braga, Raphael dos Santos Gomes, Wagner Pessanha Tamy, Severino Delmar Junqueira Villela, Fernando de Paula Leonel, Fernando de Paula Leonel   +6 more
doaj   +1 more source