Results 111 to 120 of about 23,828,011 (387)
VISUAL MODELS OF SYSTEMS ENGINEERING OF ADDITIVE MANUFACTURING PROCESSES
Надежность и качество сложных системBackground. The paper discusses methods for using visual systems engineering tools using the example of additive manufacturing processes. Materials and methods.
A.I. Vlasov, G.A. Volkov, K.V. Selivanov
doaj +1 more source
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Conceptual Level Design of Semi-structured Database System: Graph-semantic Based Approach [PDF]
International Journal of Advanced Computer Science and
Applications, The SAI Pubs., USA, Vol. 2 (10), 112 - 121, November, 2011.
[ISSN: 2156-5570(Online) & ISSN : 2158-107X(Print)], 2012 This paper has proposed a Graph - semantic based conceptual model for semi-structured database system, called GOOSSDM, to conceptualize the different facets of such system in object oriented paradigm. The model defines a set of graph based formal constructs, variety of relationship types with participation constraints and rich set of graphical ...
arxiv
Brucella NyxA and NyxB dimerization enhances effector function during infection
FEBS Letters, EarlyView.Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre +4 more
wiley +1 more source
Definitions of Ageing According to the Perspective of the Psychology of Ageing: A Scoping Review
GeriatricsIn the last decades, the scientific interest in ageing has increased due to the progressive ageing of the global population and due to the importance of guaranteeing the elder people and the next generations a good quality of life and biopsychological ...
Luca Gaviano +6 more
doaj +1 more source
Econophysics and Financial-Economic Monitoring [PDF]
arXiv, 2007 The author solves two problems: formation of object of econophysics, creation of the general theory of financial-economic monitoring. In the first problem he studied two fundamental tasks: a choice of conceptual model and creation of axiomatic base. It is accepted, that the conceptual model of econophysics is a concrete definition of entropy conceptual
arxiv
Oscillations, metastability and phase transitions in brain and models of cognition [PDF]
, 2006 Neuroscience is being practiced in many different forms and at many different organizational levels of the Nervous System. Which of these levels and associated conceptual frameworks is most informative for elucidating the association of neural processes
Werner, MD Gerhard
core
FEBS Letters, EarlyView.Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel +2 more
wiley +1 more source
Conceptual Models for Intangible Art
Mimesis Journal, 2014 Formal ontologies have been fruitfully employed to describe and document cultural heritage with the twofold goals of providing explicit and shared conceptual models of cultural heritage and of making documentation directly available to men and machines ...
Antonio Lieto +2 more
doaj +1 more source
Evolutionary interplay between viruses and R‐loops
FEBS Letters, EarlyView.Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi +4 more
wiley +1 more source