Results 51 to 60 of about 316,671 (311)
Five Types of Ruled Helical Surfaces for Helical Conveyers, Support Anchors and Screws
The paper provides an overview of five types of ruled helical surfaces which can be used for helical conveyers, support anchors and screws. The geometry of helical surfaces has been well studied.
Krivoshapko S. N., Rynkovskaya Marina
doaj +1 more source
General rotational surfaces satisfying ΔxT = φxT
In the present study we consider rotational surfaces in Euclidean 4-space whose canonical vector field x(T) satisfy the equality Delta x(T) = phi x(T).
core +1 more source
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Holomorphic curves in surfaces of general type. [PDF]
This note answers some questions on holomorphic curves and their distribution in an algebraic surface of positive index. More specifically, we exploit the existence of natural negatively curved "pseudo-Finsler" metrics on a surface S of general type whose Chern numbers satisfy c(2)1>2c2 to show that a holomorphic map of a Riemann surface to S whose ...
S S, Lu, S T, Yau
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This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley +1 more source
Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas +6 more
wiley +1 more source
Irregularity of Quintic Surfaces of General Type
In this paper we prove the following theorem. Let \(X\) be a normal quintic surface in \(\mathbb{P}^3\) and let \(\widetilde X\) be a resolution of \(X\). If \(\widetilde X\) is of general type, then its irregularity vanishes. This result was proved also by \textit{J.-G. Yang} [Trans. Am. Math. Soc.
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Surfaces of Albanese general type and the Severi conjecture [PDF]
AbstractIn 1932, F. Severi claimed, with an incorrect proof, that every smooth minimal projective surface S of irregularity q = q(S) > 0 without irrational pencils of genus q satisfies the topological inequality 2c21 (S) ≥ c2(S).According to the Enriques‐Kodaira's classification, the above inequality is easily verified when the Kodaira dimension of ...
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Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez +2 more
wiley +1 more source
Phosphoinositides and inositol phosphates as molecular glues
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry +9 more
wiley +1 more source

