Results 61 to 70 of about 756,349 (257)

The analysis of isurance in case of travel agency insolvency on the Czech market and the comparison with other kinds of bonding in the Great Britain

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2005
This article is focused on the topic of customer protection. The protection covers insolvency of travel agency and comes out from the Council Directive 90/314/EEC. In the Czech Republic this Council directive is implemented into Czech law through the Act
Ida Vajčnerová, Kateřina Ryglová
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Effect of antioxidant on orthodontic bracket bond strength after vital bleaching

open access: yesIndian Journal of Dental Research, 2018
Objectives: The objective of this study is to compare the neutralization effect of various antioxidant agents on the bond strength of composite resins on stainless steel and ceramic brackets immediately bonded to previously bleached teeth.
Deepti Yadav   +4 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS 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   +4 more
wiley   +1 more source

Plasma-activated direct bonding of coated optical glasses

open access: yes, 2022
S.71For spectrometric applications in space the benefits of direct bonding are highly promising. However, direct bonding of optical coatings is still challenging.
Rothhardt, C.   +8 more
core   +1 more source

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

open access: yesFEBS 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

المفارقة اللفظية في شعر محمود حسن إسماعيل ) [PDF]

open access: yesمجلة کلية الآداب. جامعة أسوان
يسهم التعبير اللفظي (المفارقة اللفظية ) في اتساع مظاهر المفارقة وأنواعها على نحوٍ يسمح لنا بتصور الاختلاف بين التطريب والتوليد؛ أي: التآلف، والانسجام، والتعارض لترابط الألفاظ مع المعاني؛ فيكون الكلام في أبهى صورة، وأقوى بيانًا، فتتجلى براعة التعبير وقوة ...
أسماء عربي عبد الرحمن   +2 more
doaj   +1 more source

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

Temporary wafer bonding by polyelectrolyte interlayers

open access: yes, 2022
S.179-186Polyelectrolyte multilayers of just a few nanometers thickness were used for direct bonding of silicon, thermally oxidized silicon, and borosilicate wafers, respectively, and the bonded wafer pairs were characterized during and after annealing ...
Klages, C.-P.   +4 more
core   +1 more source

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