Results 81 to 90 of about 116,663 (322)
Natural Perspective: Mapping Visual Space with Art and Science
Vision, 2018 Following its discovery in fifteenth-century Italy, linear perspective has often been hailed as the most accurate method of projecting three-dimensional visual space onto a two-dimensional picture plane.
Alistair Burleigh +2 more
doaj +1 more source
FEBS Open Bio, EarlyView.The contrast transfer function (CTF) is an imaging aberration that is a major resolution‐limiting factor in cryo‐electron microscopy (cryo‐EM). Precise CTF estimation is key to overcoming this limitation, but is particularly challenging in cryo‐electron tomography (cryo‐ET) data. Here, we present an approach for using geometric information to assist in
Sagar Khavnekar, William Wan
wiley +1 more source
Development of 4T1 breast cancer mouse model system for preclinical carbonic anhydrase IX studies
FEBS Open Bio, EarlyView.Carbonic anhydrase IX (CAIX) is a well‐recognised therapeutic target and prognostic biomarker in cancer. We developed and characterised a robust murine breast cancer model system that is suitable for CAIX studies in vitro and in vivo—it comprises both CAIX‐positive and CAIX‐negative controls and provides a solid platform for the comprehensive ...
Zane Kalniņa +13 more
wiley +1 more source
Analysis of the regulation of undecaprenyl diphosphate dephosphorylation in Escherichia coli
FEBS Open Bio, EarlyView.BacA, PgpB, and YbjG phosphatases are involved in undecaprenyl phosphate (C55P) synthesis in Escherichia coli. We analyzed the lipid contents and the gene expression in the gene‐disruption strains. Undecaprenyl diphosphate (C55PP) level increased in the bacA, ybjG double‐disruption strain, but C55P levels were similar in all strains.
Tomotaka Jitsukawa +2 more
wiley +1 more source
Real aspects of the moduli space of genus zero stable maps
, 2007 We show that the moduli space of genus zero stable maps is a real projective variety if the target space is a smooth convex real projective variety. We show that evaluation maps, forgetful maps are real morphisms.
Kwon, Seongchun
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Purity and hybridness of two tensors on a real hypersurface in complex projective space
Open MathematicsOn a real hypersurface MM in complex projective space, we can define two tensor fields of type (1, 2), AF(k){A}_{F}^{\left(k)} and AT(k){A}_{T}^{\left(k)}, associated with the shape operator AA of the real hypersurface, for any nonnull real number kk ...
Pérez Juan de Dios, Pérez-López David
doaj +1 more source
Characterization of ribosome heterogeneity during endothelial to hematopoietic transition
FEBS Open Bio, EarlyView.The panorama of ribosome heterogeneity during embryonic hematopoiesis has not yet been portrayed. In this study, utilizing dual‐omics data, the heterogenous dynamic of ribosome during endothelial‐to‐hematopoietic transition has been systemically described. Moreover, stage‐specific upregulation and peripheral localization of RPL27 and RACK1 in hemogenic
Xitong Tian +4 more
wiley +1 more source
An embedding theorem for real projective spaces
Topology, 1968 LET X be a topological space and iJ the diagonal in X x X. A map f: X x X A -+ S”-’ is called equivariant iff(x, y) = -f(y, x ) f or all (x, y) E X x X A. Any topological embedding F: X + R” gives rise to an equivariant map, namely define F(x) F(Y) Rx9 y, = 11 F(x) F(y) 11.
openaire +2 more sources
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study aims to develop a CycleGAN based denoising model to enhance the quality of low‐dose PET (LDPET) images, making them as close as possible to standard‐dose PET (SDPET) images. Methods Using a Philips Vereos PET/CT system, whole‐body PET images of fluorine‐18 fluorodeoxyglucose (18F‐FDG) were acquired from 37 patients to ...
Yang Liu, ZhiWu Sun, HaoJia Liu
wiley +1 more source
Convexity properties and complete hyperbolicity of Lempert's elliptic tubes
, 2010 We prove that elliptic tubes over properly convex domains of the real projective space are C-convex and complete Kobayashi-hyperbolic. We also study a natural construction of complexification of convex real projective manifolds.Comment: 11 ...
Alessandrini, Daniele, Saracco, Alberto
core