Results 81 to 90 of about 6,856,252 (290)

Geometrical intuition and the learning and teaching of geometry

, 2004
Intuition is often regarded as essential in the learning of geometry, but how such skills might be effectively developed in students remains an open question.
Yamamoto, Shinya, Fujita, Taro, Jones, Keith   +2 more
core   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Ontology-based semantic interpretation of cylindricity specification in the next-generation GPS [PDF]

, 2015
Cylindricity specification is one of the most important geometrical specifications in geometrical product development. This specification can be referenced from the rules and examples in tolerance standards and technical handbooks in practice.
Li, Tukun, Qin, Yuchu, Zhou, Liping, Qi, Qunfen, Liu, Xiaojun, Lu, Wenlong   +5 more
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Fault Geometrical Control on Fault Slip: Experimental Validation of Theoretical Models

Geophysical Research Letters
Slip distribution along tectonic faults is recognized as highly heterogeneous across all spatial scales and is linked to various aspects of the earthquake cycle, such as aftershock density and stress‐drop variability.
Tom Gabrieli, Pierre Romanet, Marco M. Scuderi, Yuval Tal   +3 more
doaj   +1 more source

Modeling, validation and verification of three-dimensional cell-scaffold contacts from terabyte-sized images

BMC Bioinformatics, 2017
Background Cell-scaffold contact measurements are derived from pairs of co-registered volumetric fluorescent confocal laser scanning microscopy (CLSM) images (z-stacks) of stained cells and three types of scaffolds (i.e., spun coat, large microfiber, and
Peter Bajcsy, Soweon Yoon, Stephen J. Florczyk, Nathan A. Hotaling, Mylene Simon, Piotr M. Szczypinski, Nicholas J. Schaub, Carl G. Simon, Mary Brady, Ram D. Sriram   +9 more
doaj   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

FEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan, Amias Alstrom‐Moore, Gary W Black   +2 more
wiley   +1 more source

Numerical simulations of human respiratory flows: a review

Discover Applied Sciences
This paper presents an overview of selected past and recent works on mathematical modeling and numerical simulations in respiratory fluid mechanics. The primary aim of this review is to systematically review, categorize and assess the state-of-the-art ...
Anna Lancmanová, Tomáš Bodnár
doaj   +1 more source

GEOMETRICAL APPROACH TO THE DATA MODELS DESIGN, BASED ON THE GRANULATION THEORY

Вестник Дагестанского государственного технического университета: Технические науки, 2016
A different kinds of databases, based on the relational algebra models, are used at present time. In case of graphical databases the known models are need of very large information resources for the data store and data management.
S. A. Butenkov, Z. O. Beslaneev, A. L. Nagorov   +2 more
doaj   +1 more source

Genetic dissection of human ABCE1 in yeast reveals separable requirements for ribosome recycling and suppression of aberrant reinitiation

FEBS Open Bio, EarlyView.
Human ABCE1 cannot functionally replace its yeast ortholog. Yeast–human chimera analysis identified NBD1 as a major interspecies barrier. Genetic screening yielded hABCE1 revertants that rescue yeast viability but fail to suppress aberrant translation reinitiation in the 3′ UTR.
Eriko Nakata, Yuxin Li, Kei Endo, Koichi Ito   +3 more
wiley   +1 more source