Results 21 to 30 of about 76,654 (163)

Predicting plankton net community production in the Atlantic Ocean [PDF]

, 2009
We present, test and implement two contrasting models to predict euphotic zone net community production (NCP), which are based on 14C primary production (PO14CP) to NCP relationships over two latitudinal (ca.
Agustí, Anderson, Arístegui, Bender, Berges, Bisset, Blight, Boyd, Burke, Carol Robinson, Cota, Cyr, del Giorgio, del Giorgio, Doney, Duarte, Duarte, Duarte, Emerson, Emerson, Emilio Fernández, Eva Teira, Fasham, Fogg, Gavin Tilstone, González, Gruber, Hairston, Hairston, Hansell, Hansell, Hansell, Hanson, Harris, Jansson, Karl, Karl, Kiddon, Kiørboe, Laws, Legendre, Longhurst, Longhurst, Ludwig, Margalef, McGrady-Steed, McNaughton, Michaels, Najjar, Ono, Pablo Serret, Pace, Peters, Polis, Polis, Pomeroy, Pérez, Quay, Rivkin, Robinson, Robinson, Robinson, Scavia, Schindler, Serret, Serret, Serret, Serret, Serret, Smith, Sokal, Steinberg, Stephens, Strayer, Tamigneaux, Teira, Teira, Teira, Tremblay, Valesca Pérez, Vézina, Wiens, Williams, Williams, Williams, Yamanaka   +85 more
core   +1 more source

Effects of Channel Wall Twisting on the Mixing in a T-Shaped Micro-Channel

Micromachines, 2019
A new design scheme is proposed for twisting the walls of a microchannel, and its performance is demonstrated numerically. The numerical study was carried out for a T-shaped microchannel with twist angles in the range of 0 to 34π.
Dong Jin Kang
doaj   +1 more source

Mixing times of random walks on dynamic configuration models [PDF]

, 2018
The mixing time of a random walk, with or without backtracking, on a random graph generated according to the configuration model on $n$ vertices, is known to be of order $\log n$.
Avena, Luca, Guldas, Hakan, Hollander, Frank den, van der Hofstad, Remco   +3 more
core   +2 more sources

Self-organization of collaboration networks [PDF]

, 2004
We study collaboration networks in terms of evolving, self-organizing bipartite graph models. We propose a model of a growing network, which combines preferential edge attachment with the bipartite structure, generic for collaboration networks. The model
A. Bekessy, A. Wagner, B. Bollobás, G. Chartrand, H. A. Simon, José J. Ramasco, M. Abramowitz, M. Boguñá, N. C. Wormald, R. Albert, R. Pastor-Satorras, Romualdo Pastor-Satorras, S. N. Dorogovtsev, S. N. Dorogovtsev, S. Wasserman   +14 more
core   +3 more sources

Estimating the Demand for Health Care with Panel Data: A Semiparametric Bayesian Approach [PDF]

, 2003
This paper is concerned with the problem of estimating the demand for health care with panel data. A random effects model is specifed in a semiparametric Bayesian fashion using a Dirichlet process prior. This results in a very exible mixture distribution
Jochmann, M., Leon-Gonzalez, R.
core   +2 more sources

Evidence for an axion-like particle from PKS 1222+216? [PDF]

, 2012
The surprising discovery by MAGIC of an intense, rapidly varying emission in the energy range 70 - 400 GeV from the flat spectrum radio quasar PKS 1222+216 represents a challenge for all interpretative scenarios.
A. Celotti, A. Nikishov, C. M. Urry, D. Moss, F. Tavecchio, F. A. Aharonian, Fabrizio Tavecchio, G. Maier, G. Sinnis, G. G. Raffelt, Giacomo Bonnoli, Giorgio Galanti, J. R. Primack, J. R. Primack, M. J. Rees, Marco Roncadelli, S. Wagner, V. S. Weisskopf, W. Heitler   +18 more
core   +1 more source

On the influence of topological characteristics on robustness of complex networks

, 2013
In this paper, we explore the relationship between the topological characteristics of a complex network and its robustness to sustained targeted attacks.
Kasthurirathna, Dharshana, Piraveenan, Mahendra, Thedchanamoorthy, Gnanakumar   +2 more
core   +1 more source

Rich-club connectivity dominates assortativity and transitivity of complex networks [PDF]

, 2010
Rich-club, assortativity and clustering coefficients are frequently-used measures to estimate topological properties of complex networks. Here we find that the connectivity among a very small portion of the richest nodes can dominate the assortativity ...
Jie Zhang, Michael Small, P. Erdős, Xiao-Ke Xu   +3 more
core   +2 more sources

Spatial Patterning of Modular Gelatin‐Peroxide Microspheres in Melt‐Electrowritten Scaffolds Provides Controlled Oxygen Generation and Mitigates Hypoxia and Cytotoxicity

Advanced Healthcare Materials, EarlyView.
A bioassembly approach is described using photo‐crosslinked gelatin‐based microgels containing calcium peroxide (CaO2) to generate oxygen (O2) and enhance cell survival in hypoxic conditions (1% O2). Bioassembly enables spatial patterning of individual CaO2‐laden and mesenchymal stem cell (MSC)‐laden microgels and allows for decoupling and mitigating ...
Axel E. Norberg, F. Max Yavitt, Ezgi Bakirci, Khoon Lim, Tim B. F. Woodfield, Gabriella C. J. Lindberg   +5 more
wiley   +1 more source

Social dilemmas in an online social network: the structure and evolution of cooperation [PDF]

, 2007
We investigate two paradigms for studying the evolution of cooperation--Prisoner's Dilemma and Snowdrift game in an online friendship network obtained from a social networking site.
Abramson, Albert, Anderson, Chen, Colman, Doebeli, Feng Fu, Hauert, Hofbauer, Lianghuan Liu, Long Wang, Maslov, Masuda, Maynard Smith, Newman, Nowak, Nowak, Nowak, Ohtsuki, Pacheco, Pennisi, Ravasz, Ren, Santos, Santos, Santos, Santos, Santos, Santos, Szabó, Szabó, Szabó, Szabó, Tang, Tomassini, Turner, Vukov, Xiaojie Chen, Xulvi-Brunet   +38 more
core   +2 more sources