Search results for "LMA"
showing 10 items of 3320 documents
On the Construction of Lusternik-Schnirelmann Critical Values with Application to Bifurcation Problems
1987
An iterative method to construct Lusternik-Schnirelmann critical values is presented. Examples of its use to obtain numerical solutions to nonlinear eigenvalue problems and their bifurcation branches are given. peerReviewed
Fuzzy/Kalman Hierarchical Horizontal Motion Control of Underactuated ROVs.
2010
A new closed loop fuzzy motion control system including on-line Kalman's filter (KF) for the two dimensional motion of underactuated and underwater Remotely Operated Vehicle (ROV) is presented. Since the sway force is unactuated, new continuous and discrete time models are developed using a polar transformation. A new hierarchical control architecture is developed, where the high level fuzzy guidance controller generates the surge speed and the yaw rate needed to achieve the objective of planar motion, while the low level controller gives the thruster surge force and the yaw torque control signals. The Fuzzy controller ensures robustness with respect to uncertainties due to the marine envi…
Latvijas Vēstures Institūta Žurnāls. 2013, Nr. 4 (89)
2013
Valsts kultūrkapitāla fonds
Coupling of Contact Sensitizers to Thiol Groups is a Key Event for the Activation of Monocytes and Monocyte-Derived Dendritic Cells
2003
Strong contact sensitizers are able to induce distinct signal transduction mechanisms in antigen-presenting cells by coupling to cell proteins. The predominant target structures of haptens are thought to be thiol and amino groups in cysteine and lysine residues. We studied whether coupling of small reactive chemicals to thiol or amino groups might be responsible for the activation of monocytes and mature monocyte-derived dendritic cells. Human peripheral blood mononuclear cells were stimulated in vitro with subtoxic concentrations of the strong haptens 5-chloro-2-methylisothiazolinone plus 2-methylisothiazolinone and 2, 4, 6-trinitrochlorobenzene, the thiol-reactive reagents N-hydroxymaleim…
Niels SHOE Meulman: Un homme de lettres
2019
International audience
The Politics of Explanatory Nationalism and the Evolution of the United Nations Agenda on Multinational Enterprises
2020
The contemporary world continues to suffer from a number of social problems that are global in scope but impact the Global South disproportionately. While broad and coordinated policy responses to overcome these problems exist, such policies are not shaped solely by the political will to address the problems. On the contrary, their content largely depends on how societies in general and the social problems in particular are routinely explained and conceptualized. We refer to these as explanatory tendencies or paradigms of explanation. As complex problems always have multiple root causes with long causal chains, explanations of these causes necessarily involve some assumptions about relevant…
3,5-Diaizvietotu-4-fenil-2-pirolidonu un to strukturālo analogu sintēze
2017
5-Alkil-4-fenil-3-metilēn-2-pirolidonu un to strukturālo analogu sintēze. Baškevičs V., Darba vadītājs: Dr. ķīm. Maksims Vorona. Maģistra darbs. 102 lappuses, 18 attēli, 30 pielikumi, 32 literatūras avoti. Latviešu valodā. Uz Morita-Baylis-Hillman reakcijas produktu bāzes realizēta to acilēšana un nitroalkānu pievienošanas starpproduktam. Iegūtie starpprodukti tika pakļauti reducēšanas reakcijai un iekšmolekulārai ciklizācijai ar eksometilēn grupu saturošo 2-pirolidonu veidošanu. Šim nolūkam bija izmēģinātas vairākas literatūrā eksistējošas 5-alkil-4-fenil-3-metilēn-2-pirolidonu iegūšanas metodes, no kuriem tika izvēlēta reducēšanas reakcija ar dzelzs pulvera palīdzību ledus etiķskābē. Iegū…
Rezistences pret antibakteriālajiem līdzekļiem un bioplēvju veidošanās noteikšana no ķirurģiskā materiālā izolētiem Staphylococcus epidermidis celmiem
2021
Staphylococcus epidermidis ir komensāls oportūnists, kas ir plaši sastopams kā daļa no ādas normālās mikrofloras. Bieži tas kā kontaminants nokļūst uz protēžu vai katetru virsmas un veicina noturīgu infekciju attīstību. Pateicoties S. epidermids biofilmu veidojošai īpašībai 80% grūti ārstējamu infekciju gadījumos novērojama to klātbūtne. Meticilīna rezistence ir plaši izplatīta pateicoties mecA gēna klātbūtnei. Svarīgi izprast rezistences mehānismus un biofilmu dabu, lai tās varētu laboratoriski noteikt un atrastu veidu, kā cīnīties ar sarežģītām infekcijām. Darba ietvaros noteikts, ka klīniskajos izolātos novērojama izteikta rezistence pret ciprofloksacīnu, klindamicīnu, eritromicīnu, cefo…