Results 51 to 60 of about 834,230 (306)

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

On asymmetric structures

Discrete Mathematics, 1992
A given structure is asymmetric if its automorphism group is trivial. Such structures are usually enumerated by Möbius inversion techniques. The author introduces an asymmetry indicator series and applies it to the systematic classification and enumeration of certain asymmetric structures. Illustrations include rooted trees.
openaire   +3 more sources

Asymmetric Leptons for Asymmetric Tops

, 2011
We propose an efficient method to explore models which which produce like-sign tops at the LHC, using the total charge asymmetry of single lepton events instead of like-sign dileptons. As an example, the method is implemented on a Z' Model, which can explain the top pair forward-backward asymmetry at Tevatron.
Rajaraman, Arvind, Surujon, Ze'ev, Tait, Tim M. P.   +2 more
openaire   +2 more sources

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Asymmetric desymmetrization of meso-vic-diols by carbamoylation catalyzed with a chiral Cu(II) complex [PDF]

, 2006
Asymmetric desymmetrization of meso-vic-diols was achieved by carbamoylation in the presence of copper triflate and (S,S)-Ph-BOX as a catalyst without any use of bases.
Ushijima, Nobuto, Demizu, Yosuke, Kazuya Matsumoto, Mitsuda, Masaru, Yosuke Demizu, Nobuto Ushijima, Matsumura, Yoshihiro, Onomura, Osamu, Yoshihiro Matsumura, Masaru Mitsuda, Osamu Onomura, Matsumoto, Kazuya   +11 more
core   +1 more source

Asymmetric Thickness Intracorneal Ring Segments for Keratoconus [PDF]

, 2020
Purpose: To describe the anatomical and functional results of the implantation of asymmetric thickness intracorneal ring segments (AS-ICRS) in eyes with keratoconus and asymmetric/irregular astigmatism (type 2 - Duck - and type 3 - Snowman - phenotypes ...
Gomes, Miguel, Baptista, Pedro Manuel, OLIVEIRA, LUIS, Marques, Joao Heitor, Neves, Miguel Mesquita, Pedro Manuel Baptista, Miguel Gomes, Luís Oliveira, João Heitor Marques, Miguel Mesquita Neves   +9 more
core   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Governing Cross-Border Cyber Threat Intelligence Sharing for Maritime Security Resilience in the Strait of Malacca

Journal of Contemporary Governance and Public Policy
The Straits of Malacca and Singapore are among the most strategically important maritime chokepoints in the global trading system. Although conventional threats such as piracy have been managed through regional cooperation, the rapid digitalisation of ...
Suhirwan Suhirwan
doaj   +1 more source

Asymmetric errors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
We present a procedure for handling asymmetric errors. Many results in particle physics are presented as values with different positive and negative errors, and there is no consistent procedure for handling them. We consider the difference between errors quoted using pdfs and using likelihoods, and the difference between the rms spread of a measurement
Barlow R., Brazzale A. R., Volobouev I.
openaire   +2 more sources

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

FEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana, Xiaowei Bogetti, Stuti Sharma, Ivet Bahar   +3 more
wiley   +1 more source