Results 31 to 40 of about 28,712 (296)

On polar relative normalizations of ruled surfaces

open access: yesUniversal Journal of Mathematics and Applications, 2018
This paper deals with skew ruled surfaces in the Euclidean space $\mathbb{E}^{3}$ which are equipped with polar normalizations, that is, relative normalizations such that the relative normal at each point of the ruled surface lies on the corresponding ...
Ioanna-Iris Papadopoulou   +1 more
doaj   +1 more source

PSEUDO-MINIMALITY AND RULED SURFACES [PDF]

open access: yesVestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, 2020
This paper is a follow-up to the author's series of works about shape modeling for an orthotropic elastic material that takes an equilibrium form inside the area with the specified boundaries. V.M. Gryanik and V.I. Loman, based on thin shell equilibrium equations, solved about 30 years ago a similar problem for an isotropic mesh attached to rigid ...
openaire   +2 more sources

Singularities of ruled surfaces in R3 [PDF]

open access: yes, 1999
We study singularities of ruled surfaces in JR3.
Takeuchi, N.   +3 more
core   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

ON RULED SURFACES IN MINKOWSKl SPACES [PDF]

open access: yesCommunications of the Korean Mathematical Society, 2003
Summary: We study ruled surfaces in Minkowski space, which admit 1-type Gauss map. In particular, non-cylindric-al ruled surfaces with finite type Gauss map are of \(k\)-type (\(k\geq2\)).
Kim, Dong-Soo   +2 more
openaire   +2 more sources

Ruled quartic surfaces, models and classification [PDF]

open access: yes, 2010
New historical aspects of the classification of ruled quartic surfaces and the relation to string models and plaster models are presented. In a ‘modern’ treatment of the classification of ruled quartic surfaces the classical one is corrected and ...
Top, Jakob; id_orcid   +11 more
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

On the Singularities of Surfaces Ruled by Conics [PDF]

open access: yesCommunications in Algebra, 2014
16 pages, 13 ...
BRUNDU, MICHELA, SACCHIERO, GIANNI
openaire   +3 more sources

Longitudinal circulating tumor DNA profiling in patients with advanced endometrial cancer using an off‐the‐shelf targeted NGS panel

open access: yesMolecular Oncology, EarlyView.
Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena   +15 more
wiley   +1 more source

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