Results 51 to 60 of about 414,156 (339)

N,N′-Bis(2-azaniumylbenzyl)ethane-1,2-diaminium tetrachloride

Acta Crystallographica Section E, 2011
The title compound, C16H26N44+·4Cl−, is based on a fully protonated tetraamine. In the cation, both benzene rings are connected by an all-trans chain, and the rings are almost parallel, with an angle between the mean planes of 8.34&
Luis Ángel Garza Rodríguez, Sylvain Bernès, Perla Elizondo Martínez, Blanca Nájera Martínez, Nancy Pérez Rodríguez   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

3β-Chlorocholest-5-en-7-one

Acta Crystallographica Section E, 2010
The title compound, C27H43ClO, is a steroid derivative composed of a saturated carbon fused-ring framework with an alkyl side chain. The A and C rings have chair conformations and the B and D rings assume half-chair conformations.
Hoong-Kun Fun, Madhukar Hemamalini, Rokiah Hashim, Othman Sulaiman, Mohd. Shaheen Khan   +4 more
doaj   +1 more source

Double Constacyclic Codes over Two Finite Commutative Chain Rings [PDF]

, 2022
Yun Fan, Hualu Liu
openalex   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

On Linear Codes over Finite Singleton Local Rings

Mathematics
The study of linear codes over local rings, particularly non-chain rings, imposes difficulties that differ from those encountered in codes over chain rings, and this stems from the fact that local non-chain rings are not principal ideal rings.
Sami Alabiad, Alhanouf Ali Alhomaidhi, Nawal A. Alsarori   +2 more
doaj   +1 more source

(2Z)-2-Benzylidene-4-(prop-2-yn-1-yl)-2H-1,4-benzothiazin-3(4H)-one

Acta Crystallographica Section E, 2014
The molecule of the title compound, C18H13NOS, is build up from two fused six-membered rings, with the heterocyclic component linked to a benzylidene group and to a prop-2-yn-1-yl chain.
Nada Kheira Sebbar, Abdelfettah Zerzouf, El Mokhtar Essassi, Mohamed Saadi, Lahcen El Ammari   +4 more
doaj   +1 more source

Sagnac effect in a chain of mesoscopic quantum rings

, 2008
The ability to interferometrically detect inertial rotations via the Sagnac effect has been a strong stimulus for the development of atom interferometry because of the potential 10^{10} enhancement of the rotational phase shift in comparison to optical ...
Christopher P. Search, John H. Davies, John R. E. Toland, M. Born, Marko Zivkovic   +4 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

N1-[(1H-Imidazol-2-yl)methylidene]-N4-phenylbenzene-1,4-diamine

Acta Crystallographica Section E, 2014
The title compound, C16H14N4, is non-planar with dihedral angles between the planes of the imidazole and phenylenediamine rings of 30.66 (4)° and between the planes of the phenylenediamine and N-phenyl rings of 56.63 (7)°.
Md. Serajul Haque Faizi, Ashraf Mashrai, M. Shahid, Musheer Ahmad   +3 more
doaj   +1 more source