Results 71 to 80 of about 614,247 (264)

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

Advanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou, Kenny A. van Kampen, Pierpaolo Fucile, Carlos Mota, Lorenzo Moroni   +4 more
wiley   +1 more source

Finite element approximation of a population spatial adaptation model

Mathematical Biosciences and Engineering, 2013
In [18], Sighesada, Kawasaki and Teramoto presented a system of partial differential equations for modeling spatial segregation of interacting species.
Gonzalo Galiano, Julián Velasco
doaj   +1 more source

Gene diversity in finite populations

Genetical Research, 1985
DNA sequence comparison among homologous genes sampled at random from one or two populations allows one to estimate the ultimate amount of genetic variation maintained in a population and to construct the gene genealogy within and between populations. Moreover, if we use the finding of the molecular clock (Zuckerkandl & Pauling, 1965), it is also ...
openaire   +2 more sources

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

Evolutionary dynamics of the most populated genotype on rugged fitness landscapes

, 2007
We consider an asexual population evolving on rugged fitness landscapes which are defined on the multi-dimensional genotypic space and have many local optima.
C. L. Burch, C. Sire, D. M. Weinreich, E. Mayr, G. Arfken, G. Fernandez, H. A. David, I. Gradshteyn, J. Drake, K. Jain, K. Jain, K. Jain, Kavita Jain, N. Eldredge, P. Stadler, S. A. Kauffman, S. Gavrilets, S. Sabhapandit, S. Wright   +18 more
core   +1 more source

Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
State‐of‐the‐art computations unravel the intricate decoherence dynamics of the boron vacancy center in hexagonal boron nitride across magnetic fields from 0 to 3 T. Five distinct regimes emerge, dominated by nuclear spin interactions, revealing optimal coherence times of 1–20 µs in the 180–350 mT range for isotopically pure samples.
András Tárkányi, Viktor Ivády
wiley   +1 more source

Does Good Mutation Help You Live Longer?

, 1999
We study the dynamics of an age-structured population in which the life expectancy of an offspring may be mutated with respect to that of its parent. When advantageous mutation is favored, the average fitness of the population grows linearly with time $t$
B. Charlesworth, D. A. Kessler, D. Ridgway, J. D. Murray, L. Tsimring, M. Ya. Azbel, P. L. Krapivsky, P. M. C. de Oliveira, R. M. Nisbet, S. M. de Oliveira, S. Redner, T. J. P. P. Penna, W. Hwang   +12 more
core   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Cavity implementation of quantum interference in a $\Lambda$-type atom

, 2000
A scheme for engineering quantum interference in a $\Lambda$-type atom coupled to a frequency-tunable, single-mode cavity field with a pre-selected polarization at finite temperature is proposed.
A. Imamoglu, A.K. Patnaik, A.S. Manka, A.S. Zibrov, C.H. Keitel, D. Kleppner, D.A. Cardimona, D.J. Gauthier, D.J. Heinzen, E. Arimondo, E. Paspalakis, G.S. Agarwal, G.S. Agarwal, G.S. Agarwal, H. J. Kimble, H.R. Xia, J. Javanainen, J. Wang, J.E. Field, K.J. Boller, L.M. Narducci, M. Fleischauer, M. Xiao, M.D. Lukin, M.D. Lukin, M.D. Lukin, M.O. Scully, M.O. Scully, M.O. Scully, P Zhou, P. Goy, P. Meystre, P. Zhou, P. Zhou, P. Zhou, P. Zhou, P. Zhou, P. Zhou, P.R. Berman, Peng Zhou, R.G. Hulet, S. Menon, S.E. Harris, S.E. Harris, S.Y. Zhu, S.Y. Zhu, W. Lange, Y. Zhu   +47 more
core   +1 more source

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source