Results 31 to 40 of about 18,304 (274)
Androgen and estrogen receptor expression in the developing human penis and clitoris. [PDF]
To better understand how the human fetal penis and clitoris grows and remodels, we undertook an investigation to define active areas of cellular proliferation and programmed cell death spatially and temporally during development of human fetal external ...
Baskin, Laurence +6 more
core
Dark-field hyperlens: Super-resolution imaging of weakly scattering objects [PDF]
We propose and numerically demonstrate a technique for subwavelength imaging based on a metal-dielectric multilayer hyperlens designed in such a way that only the large-wavevector waves are transmitted while all propagating waves from the image area are ...
Lavrinenko, Andrei V. +2 more
core +3 more sources
Embryonic geometry underlies phenotypic variation in decanalized conditions
During development, many mutations cause increased variation in phenotypic outcomes, a phenomenon termed decanalization. Phenotypic discordance is often observed in the absence of genetic and environmental variations, but the mechanisms underlying such ...
Anqi Huang +2 more
doaj +1 more source
Sub-wavelength diffraction-free imaging with low-loss metal-dielectric multilayers [PDF]
We demonstrate numerically the diffraction-free propagation of sub-wavelength sized optical beams through simple elements built of metal-dielectric multilayers.
A. Farjadpour +18 more
core +2 more sources
Emergence of tissue polarization from synergy of intracellular and extracellular auxin signaling
Plant development is exceptionally flexible as manifested by its potential for organogenesis and regeneration, which are processes involving rearrangements of tissue polarities.
Krzysztof Wabnik +8 more
doaj +1 more source
The genetic architecture of skull shape has been extensively studied in mice and the results suggest a highly polygenic and additive basis. In contrast few studies have explored the genetic basis of the skull variability.
Ceferino Varón-González +5 more
doaj +1 more source
Developmental stability, canalization, and phenotypic plasticity are the most common sources of phenotypic variation, yet comparative studies investigating the relationships between these sources, specifically in plants, are lacking.
Shu Wang, Dao‐Wei Zhou
doaj +1 more source
Complex epithelial remodeling underlie the fusion event in early fetal development of the human penile urethra. [PDF]
We recently described a two-step process of urethral plate canalization and urethral fold fusion to form the human penile urethra. Canalization ("opening zipper") opens the solid urethral plate into a groove, and fusion ("closing zipper") closes the ...
Baskin, Laurence +6 more
core
Symmetry in Critical Random Boolean Network Dynamics
Using Boolean networks as prototypical examples, the role of symmetry in the dynamics of heterogeneous complex systems is explored. We show that symmetry of the dynamics, especially in critical states, is a controlling feature that can be used both to ...
Bassler, Kevin E. +2 more
core +1 more source
Molecular Network Control Through Boolean Canalization [PDF]
Boolean networks are an important class of computational models for molecular interaction networks. Boolean canalization, a type of hierarchical clustering of the inputs of a Boolean function, has been extensively studied in the context of network ...
Dimitrova, Elena S., Murrugarra, David
core +3 more sources

