Search results for " Rob"
showing 10 items of 689 documents
Evolutionary and transcriptional analyses of a pentraxin-like component family involved in the LPS inflammatory response of Ciona robusta
2020
Pentraxins (PTXs) are a superfamily of conserved proteins which are components of the humoral arm of innate immunity. They are considered to be functional ancestors of antibodies and are classified into short and long types. In this study, we show that a pentraxin-like component (Ptx-like) with a C-terminal PTX domain, highly homologous to the short PTX of H. sapiens CRP, and a long N-terminal domain typical of long PTXs, is involved in the inflammatory response of Ciona robusta under LPS exposure in vivo. Analyses of protein domains as well as 3D modelling and phylogenetic tree supported the close relationship of Ptx-like with mammalian CRP, suggesting that C. robusta Ptx-like shares a com…
Transcriptomic Analyses Reveal 2 and 4 Family Members of Cytochromes P450 (CYP) Involved in LPS Inflammatory Response in Pharynx of Ciona robusta
2021
Cytochromes P450 (CYP) are enzymes responsible for the biotransformation of most endogenous and exogenous agents. The expression of each CYP is influenced by a unique combination of mechanisms and factors including genetic polymorphisms, induction by xenobiotics, and regulation by cytokines and hormones. In recent years, Ciona robusta, one of the closest living relatives of vertebrates, has become a model in various fields of biology, in particular for studying inflammatory response. Using an in vivo LPS exposure strategy, next-generation sequencing (NGS) and qRT-PCR combined with bioinformatics and in silico analyses, compared whole pharynx transcripts from naïve and LPS-exposed C. robusta…
Phytopathogenic Bacteria Associated with Bacterioses of Common Oak (Quercus robur L.) in Ukraine
2022
Studying the biological characteristics of the causative agents of bacteriosis of the common oak (Quercus robur L.) (to highlight the links between the key factors of pathogenesis and bacterial groups) is a new and relevant area of research. This work aims to identify the species composition of phytopathogenic bacteria associated with common oak bacteriosis and to study the morphological, cultural, and biochemical properties of pathogens. To establish the general phytosanitary state of the surveyed stands, classical forest inventory and phytopathological (visual on based on typical symptoms of the disease and macroscopic) methods were used. The properties of isolated bacteria were studied u…
Stationary and Initial-Terminal Value Problem for Collective Decision Making via Mean-Field Games
2017
Given a large number of homogeneous players that are distributed across three possible states, we consider the problem in which these players have to control their transition rates, following some optimality criteria. The optimal transition rates are based on the players' knowledge of their current state and of the distribution of all the other players, thus introducing mean-field terms in the running and the terminal cost. The first contribution is a mean-field model that takes into account the macroscopic and the microscopic dynamics. The second contribution is the study of the mean-field equilibrium resulting from solving the initial-terminal value problem, involving the Kolmogorov equat…
Neural Petri Control: an application on a mobile robot
2006
In the present work, an innovative nonlinear controller of nonholonomic mechanical systems, characterized by a dynamic not well known model a priori, using a new neural model obtained by the combination of a Petri net with a neural network, is proposed. The performances of the control algorithm are evaluated for tasks of tracking of time trajectories. The study of the stability of the total system to closed loop is based on the Lyapunov theory. Simulation experiments, made taking into consideration a nonholonomic mobile robot, to two wheels, allowed to verify the theoretical results.
Robust control of continuous-time systems with state-dependent uncertainties and its application to electronic circuits
2014
In this paper, the problems of robust stability and stabilization are investigated for a class of continuous-time uncertain systems. The uncertainties in the model are state-dependent and belong to a polytopic convex set, as can be found in many electronic circuits and some other applications. The global asymptotic stability conditions for such systems are first established by the classic common quadratic Lyapunov function approach. To reduce conservativeness, a particular class of nonquadratic parameter-dependent Lyapunov functions is introduced, by which improved robust stability conditions for the underlying systems are also derived. Based on the stability criteria, a static output feedb…
Vieglo elementu stabilo izotopu masas attiecību masspektrometrijas metodes pielietojums miežu graudu pētījumos
2019
Vieglo elementu stabilo izotopu masas attiecību masspektrometrijas metodes pielietojums miežu graudu pētījumos. Kobzarevs D. Zinātniskais vadītājs Mg. Chem. Bērtiņš M. Bakalaura darbs 35 lappuses, 10 tabulas, 15 attēli, 29 literatūras avoti, 3 pielikumi. Latviešu valodā. Darbā veikta literatūras analīze par izotopu attiecībām masu spektrometrijā. Pētīti un sagatavoti gan bioloģiskie, gan konvencionālie miežu paraugi. Paraugi tika iegūti no vairākām miežu šķirnēm. Bakalaura darba ietvaros tika analizēti C, N un O izotopu attiecības. Tika novērtēti rezultāti un meklētas likumsakarības par izotopu attiecībām.
Improving Of The Productivity And The Quality Of A Manufacturing Robotized Cell For Mig/Mag Welding
2007
During the last years, globalization and the necessity to reduce production costs have pushed industry to employ more and more manufacturing robotized cells. This trend has been assimilated by arc welding too. The use of robotic systems allows to increase the performance of productive systems by means of reduction in lead-time, reproducibility of processes and increase in quality. However, process automation needs pre-scheduling of manufacturing cell movements and also a setup of different welding parameters, such as power provided by the welding generator, arc length and robot speed, all of which allows to get a joint without defects. An online scheduling of robotic systems brings certainl…
Imigranta kā drauda sabiedriskajai kārtībai jēdziena tvērums Eiropas Savienības tiesas judikatūrā
2020
Imigranta kā drauda sabiedriskajai kārtībai jēdziena tvērums Eiropas Savienības tiesas judikatūrā. Freibergs A. V., Darba vadītājs, Dr. iur. Broks E. Bakalaura darbs. 64 lappuses. Latviešu valodā. Darbā analizēts imigranta kā drauda sabiedriskajai kārtībai jēdziena tvērums Eiropas Savienības tiesas judikatūrā. Pētījuma gaitā noteikti pamati, pamatojoties uz kuriem persona var tikt izraidīta no Eiropas Savienības. Analizēts sabiedriskās kārtības apdraudējums kā pamats personas izraidīšanai no Eiropas Savienības. Veikta atbilstošajam tematam veltītās tiesu prakses izpēte un uzstādītas vairākas problēmas ar ko juridiski jāsaskaras brīvai personu kustībai migrācijas procesu rezultātā. Piedāvāts…