Results 11 to 20 of about 78,630 (216)

Helmholtz-Manakov solitons [PDF]

, 2005
A novel spatial soliton-bearing wave equation is introduced, the Helmholtz-Manakov (H-M) equation, for describing the evolution of broad multi-component self-trapped beams in Kerr-type media. By omitting the slowly-varying envelope approximation, the H-M
Chamorro-Posada, P, Christian, JM, McDonald, GS   +2 more
core   +1 more source

Variability, negative evidence, and the acquisition of verb argument constructions [PDF]

, 2009
We present a hierarchical Bayesian framework for modeling the acquisition of verb argument constructions. It embodies a domain-general approach to learning higher-level knowledge in the form of inductive constraints (or overhypotheses), and has been used
Perfors, Amy, Tenenbaum, Joshua B., Wonnacott, Elizabeth   +2 more
core   +2 more sources

Diffractive point sets with entropy

, 1998
After a brief historical survey, the paper introduces the notion of entropic model sets (cut and project sets), and, more generally, the notion of diffractive point sets with entropy. Such sets may be thought of as generalizations of lattice gases.
, Ammann R, Baake M, Baake M, Baake M, Baake M, Baake M, Baake M, Bauer H, Cowley J M, Grünbaum B, Guinier A, Hof A, Hof A, Hof A, Joseph D, Kowalewski G, Kramer P, Kuipers L, Lagarias J C, Lunnon W F, Mackay A L, Meyer Y, Michael Baake, Moody R V, Nissen H-U, Reed M, Richard C, Robert V Moody, Schlottmann M, Schlottmann M, Schlottmann M, Schwartz L, Schwarzenberger R L E, Sinai Ya G, Steinhardt P J, Welberry T R   +36 more
core   +2 more sources

Estimating forest uniformity in Eucalyptus spp. and Pinus taeda L. stands using field measurements and structure from motion point clouds generated from unmanned aerial vehicle (UAV) data collection

Forest Systems, 2018
Aim of study: In this study we applied 3D point clouds generated by images obtained from an Unmanned Aerial Vehicle (UAV) to evaluate the uniformity of young forest stands.Area of study: Two commercial forest stands were selected, with two plots each. The forest species studied were Eucalyptus spp. and Pinus taeda L.
Hentz, Ângela M. K., Silva, Carlos A., Dalla Corte, Ana P., Netto, Sylvio P., Strager, Michael P., Klauberg, Carine   +5 more
openaire   +5 more sources

Minimal structures, generalized topologies, and ascending systems should not be studied without generalized uniformities

Filomat, 2007
By using the Pervin relations, we show that all minimal structures generalized topologies, and ascending systems can be naturally derived from generalized uniformities. Therefore, they need not be studied separately.
openaire   +2 more sources

Code Construction and Decoding Algorithms for Semi-Quantitative Group Testing with Nonuniform Thresholds [PDF]

, 2015
We analyze a new group testing scheme, termed semi-quantitative group testing, which may be viewed as a concatenation of an adder channel and a discrete quantizer. Our focus is on non-uniform quantizers with arbitrary thresholds.
Emad, Amin, Milenkovic, Olgica
core  

Combinatorial approach to generalized Bell and Stirling numbers and boson normal ordering problem

, 2005
We consider the numbers arising in the problem of normal ordering of expressions in canonical boson creation and annihilation operators. We treat a general form of a boson string which is shown to be associated with generalizations of Stirling and Bell ...
Bergeron F., K. A. Penson, Klauder J. R., Louisell W. H., M. A. Méndez, P. Blasiak, Peshkin M. E.   +6 more
core   +2 more sources

Coarsening versus pattern formation [PDF]

, 2015
It is known that similar physical systems can reveal two quite different ways of behavior, either coarsening, which creates a uniform state or a large-scale structure, or formation of ordered or disordered patterns, which are never homogenized.
Nepomnyashchy, A. A.
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

FEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga, Toshiki Takahashi, Akiko Kuma, Hiroyuki Kawahara   +3 more
wiley   +1 more source