Results 31 to 40 of about 233,340 (98)

Sphere-Spaces

Proceedings of the National Academy of Sciences, 1935
openaire   +4 more sources

Heegaard reducing spheres for the 3-sphere

, 2001
In a previous paper with W. Thurston the author defined an invariant in \({\mathbb Q}/2\) of a knot with unknotting tunnel \(\gamma\). To construct this invariant they characterized reducing spheres for genus two Heegaard splittings of \(S^3\). In the paper under review the author generalizes this characterisation to arbitrary genus Heegaard splittings
openaire   +2 more sources

The Generation and Control of Irregularly Shaped Perfect Vector Vortex Beams on Hybrid Poincaré Spheres Using All-Dielectric Metasurfaces. [PDF]

Nanophotonics
Sun X, Yang X, Tao H, Song H, Cai J, Zou J, He J, Wang J.   +7 more
europepmc   +1 more source

Twist-spinning spheres in spheres

Illinois Journal of Mathematics, 1965
Hsiang, W.-C., Sanderson, B. J.
openaire   +3 more sources

Feeding rates in sessile versus motile ciliates are hydrodynamically equivalent. [PDF]

Elife
Liu J, Man Y, Costello JH, Kanso E.
europepmc   +1 more source

Concerted Proton-Electron Transfer Minimizes Substituent Effects on Adsorbed Phthalocyanine Electrocatalysis. [PDF]

J Am Chem Soc
Mannava V, Smith LE, Gardner JG, Hammes-Schiffer S, Surendranath Y.   +4 more
europepmc   +1 more source

Spatial classification of clinical T1a-bN0 non-small cell lung cancer in superior segment based on three-dimensional reconstruction: optimizing surgical margin and operative strategy. [PDF]

J Thorac Dis
Yang Y, Ren Q, Wang Z, Wen W, Xu X, Zhu Q.   +5 more
europepmc   +1 more source

A Glimpse in the Metal Ion Selectivity Rules: Zn(II), Cd(II) and Co(II) Interplay With Different Protein Coordination Spheres in Determining Variable Thermal Stability and Folding Scenarios. [PDF]

Bioinorg Chem Appl
Dragone M, Caputo G, D'Abrosca G, Shitaye G, Baglivo I, Pedone PV, Russo L, Fattorusso R, Malgieri G, Isernia C.   +9 more
europepmc   +1 more source

Assessing imaging performance of ultrasound systems using a random hypoechoic sphere phantom with freehand scanning. [PDF]

Med Phys
Yu B, Wu D, Baiu C, Lu ZF.
europepmc   +1 more source

Assessing small-lesion detectability and acquisition time optimisation in silicon-detector-Based PET: a phantom study. [PDF]

EJNMMI Phys
Leybourne N, Prakash V, Hussein M, Fenwick A, Strouhal P, Evans P, Florescu L.   +6 more
europepmc   +1 more source