Results 91 to 100 of about 122,064 (340)

Wavefronts, caustic sheets, and caustic surfing in gravitational lensing

Journal of Mathematical Physics, 2002
Very little attention has been paid to the properties of optical wavefronts and caustic surfaces due to gravitational lensing. Yet the wavefront-based point of view is natural and provides insights into the nature of the caustic surfaces on a gravitationally lensed lightcone.
Frittelli, Simonetta, Petters, A. O.
openaire   +3 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Height–plane contact along edges, corners, and cusps

AIMS Mathematics
We study pairs $ \widetilde X = (X, S) $ which consist of regular surfaces $ X\subset{\mathbb{R}}^3 $ endowed with a distinguished boundary $ S $ given by $ y^2-x^s = 0 $ ($ s = 1, 2, 3 $: edge, corner, cusp).
Fawaz Alharbi
doaj   +1 more source

Effect of caustic soda on the intensity of gassing in the production of non-autoclaved aerated concrete

MATEC Web of Conferences, 2017
This article discusses the effect of caustic soda on the intensity of gassing in the production of non-autoclaved aerated concrete. It has been found out that adding 0.8 and 1.0 percent of caustic soda increases the amount of released hydrogen by 20-40%.
Halyushev Alexander, Holodnyak Mikhail, Nazhuyev Muhuma   +2 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Vector fields on bifurcation diagrams of quasi singularities

AIMS Mathematics
We describe the generators of the vector fields tangent to the bifurcation diagrams and caustics of simple quasi boundary singularities. As an application, submersions on the pair $ (G, B) $, which consists of a cuspidal edge $ G $ in $ \mathbb{R}^3 ...
Fawaz Alharbi, Yanlin Li
doaj   +1 more source

Endoscopic findings of the digestive tract secondary to caustic ingestion in children seen at the Emergency Department.

Archivos Argentinos de Pediatria, 2018
BACKGROUND Caustic ingestion in pediatrics is a common cause of visits to the Emergency Department. An indiscriminate use of cleaning chemicals and an easy access to them are determining factors for these injuries.
Alejandro Barrón Balderas, Mireya Robledo Aceves, P. Coello Ramírez, Elizabeth García Rodríguez, Javier A Barriga Marín   +4 more
semanticscholar   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Efficient Caustic Rendering with Lightweight Photon Mapping

Computer graphics forum (Print), 2018
Robust and efficient rendering of complex lighting effects, such as caustics, remains a challenging task. While algorithms like vertex connection and merging can render such effects robustly, their significant overhead over a simple path tracer is not ...
Pascal Grittmann, Arsène Pérard-Gayot, Philipp Slusallek, Jaroslav Křivánek   +3 more
semanticscholar   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source