106,563 dokumen ditemukan
(Menampilkan 1-20 | Halaman 1 dari 5329)
Urutkan
#
Judul
Penulis
Tahun
Akses
Jurnal Institusi
LITERATURE ANALYSIS OF PHYLOTAXIS PATTERN VARIATION IN PLANTS: SYMMETRY, CLASSIFICATION, AND SPECIES REPRESENTATION
Bio-Lectura : Jurnal Pendidikan Biologi; Vol. 12 No. 1 (2025); 127-137
Phyllotaxis, or the pattern of leaf arrangement along a plant stem, plays a crucial role in physiological efficiency and morphological adaptation. This study aims to examine the variation in phyllotactic patterns among plants, identify their relation...
Jurnal Institusi
Surface Morphology of Fe(III)-Porphyrin Thin Layers as Characterized by Atomic Force Microscopy
Indonesian Journal of Chemistry; Vol 16, No 3 (2016); 233-238
Surface morphology of Fe(III)–porphyrin thin layers was studied using atomic force microscopy. The thin layer samples used in these experiments were deposited by spin coating methods on indium–tin-oxide substrates at room temperature under atmosp...
PubMed
Rotational-symmetry in a 3D scene and its 2D image
J Math Psychol
A 3D shape of an object is N-fold rotational-symmetric if the shape is invariant for 360/N degree rotations about an axis. Human observers are sensitive to the 2D rotational-symmetry of a retinal image, but they are less sensitive than they are to 2D...
PubMed
Symmetry-Projected Nuclear-Electronic Hartree–Fock: Eliminating Rotational Energy Contamination
J Phys Chem A
[Image: see text] We present a symmetry projection technique for enforcing rotational and parity symmetries in nuclear-electronic Hartree–Fock wave functions, which treat electrons and nuclei on equal footing. The molecular Hamiltonian obeys rotati...
PubMed
Microscopic Symmetry Imposed by Rotational Symmetry Boundary Conditions in Molecular Dynamics Simulation
J Chem Theory Comput
A large number of viral capsids, as well as other macromolecular assemblies, have icosahedral structure or structures with other rotational symmetries. This symmetry can be exploited during molecular dynamics (MD) to model in effect the full viral ca...
PubMed
Rotational Symmetry Effects on Multibody Lateral Interactions between Co-Adsorbates at Heterogeneous Interfaces
ACS Phys Chem Au
[Image: see text] Heterogeneous interfaces are critical in a wide range of applications, and their material properties can be tuned via changes in the coverage and configuration of chemical adsorbates. However, the tunability of such adlayers is limi...
PubMed
Effects of symmetry-breaking on electromagnetic backscattering
Sci Rep
Systems with a discrete rotational symmetry [Formula: see text] where [Formula: see text] that also have electromagnetic duality symmetry exhibit zero backscattering. The impact of breaking one of the two symmetries on the emerging backscattering has...
PubMed
Symmetry, homology, and phrasing in the recognition of helical regulatory sequences in DNA.
Nucleic Acids Res
Regulatory regions in DNA which have been sequenced have generally been found to contain one or more axes of two-fold rotational symmetry. If this symmetry is to be maintained in the helical sequence, the axis of rotation must be aligned with one of ...
PubMed
Geometric morphometrics of nested symmetries unravels hierarchical inter- and intra-individual variation in biological shapes
Sci Rep
Symmetry is a pervasive feature of organismal shape and the focus of a large body of research in Biology. Here, we consider complex patterns of symmetry where a phenotype exhibits a hierarchically structured combination of symmetries. We extend the P...
PubMed
NiS ultrafine nanorod with translational and rotational symmetry
Natl Sci Rev
Anisotropy is a significant and prevalent characteristic of materials, conferring orientation-dependent properties, meaning that the creation of original symmetry enables key functionality that is not found in nature. Even with the advancements in at...
PubMed
BioSuper: A web tool for the superimposition of biomolecules and assemblies with rotational symmetry
BMC Struct Biol
BACKGROUND: Most of the proteins in the Protein Data Bank (PDB) are oligomeric complexes consisting of two or more subunits that associate by rotational or helical symmetries. Despite the myriad of superimposition tools in the literature, we could no...
PubMed
Structural studies of local environments in high-symmetry quasicrystals
Sci Rep
The statistics of how the local environment of a particle looks like, e.g., given by the distribution of nearest neighbor distances or the sizes of Voronoi cells, is important as a starting point for the calculation of many material properties like e...
PubMed
Correction: Rotational symmetry dication assembling ferroelectric, thermochromic and circularly polarized luminescent multifunctional manganese(ii) bromide hybrid
Chem Sci
Correction for “Rotational symmetry dication assembling ferroelectric, thermochromic and circularly polarized luminescent multifunctional manganese(ii) bromide hybrid” by Jiayi Yuan et al., Chem. Sci., 2026, https://doi.org/10.1039/d5sc08499g.
PubMed
Breaking Rotational Symmetry in Supertwisted WS(2) Spirals via Moiré Magnification of Intrinsic Heterostrain
Nano Lett
[Image: see text] Twisted stacking of van der Waals materials with moiré superlattices offers a new way to tailor their physical properties via engineering of the crystal symmetry. Unlike well-studied twisted bilayers, little is known about the over...
PubMed
A Step-by-Step Guide for Geometric Morphometrics of Floral Symmetry
Front Plant Sci
This paper provides a step-by-step guide for the morphological analysis of corolla and the decomposition of corolla shape variation into its symmetric and asymmetric components. The shape and symmetric organisation of corolla are key traits in the de...
PubMed
Violation of emergent rotational symmetry in the hexagonal Kagome superconductor CsV(3)Sb(5)
Nat Commun
Superconductivity is caused by electron pairs that are canonically isotropic, whereas some exotic superconductors are known to exhibit non-trivial anisotropy stemming from unconventional pairings. However, superconductors with hexagonal symmetry, the...
PubMed
Electrophysiological priming effects demonstrate independence and overlap of visual regularity representations in the extrastriate cortex
PLoS One
An Event Related Potential (ERP) component called the Sustained Posterior Negativity (SPN) is generated by regular visual patterns (e.g. vertical reflectional symmetry, horizontal reflectional symmetry or rotational symmetry). Behavioural studies sug...
PubMed
Symmetry and dynamics of molecular rotors in amphidynamic molecular crystals
Proc Natl Acad Sci U S A
Rotary biomolecular machines rely on highly symmetric supramolecular structures with rotating units that operate within a densely packed frame of reference, stator, embedded within relatively rigid membranes. The most notable examples are the enzyme ...
PubMed
The rotational order–disorder structure of the reversibly photoswitchable red fluorescent protein rsTagRFP
Acta Crystallogr D Biol Crystallogr
The rotational order–disorder (OD) structure of the reversibly photoswitchable fluorescent protein rsTagRFP is discussed in detail. The structure is composed of tetramers of 222 symmetry incorporated into the lattice in two different orientations r...
PubMed
Superalgebra and fermion-boson symmetry
Proc Jpn Acad Ser B Phys Biol Sci
Fermions and bosons are quite different kinds of particles, but it is possible to unify them in a supermultiplet, by introducing a new mathematical scheme called superalgebra. In this article we discuss the development of the concept of symmetry, sta...