Search results for "NIP"
showing 10 items of 775 documents
Māsas rīcības infekcijas kontroles nodrošināšanā intensīvās terapijas nodaļā
2021
Bakalaura darba tēma: „Māsas rīcība infekcijas kontroles nodrošināšanā intensīvās terapijas nodaļā”. Neskatoties uz modernās medicīnas tehnoloģiskajiem sasniegumiem, ar veselības aprūpi saistītas infekcijas turpina izplatīties un pieder pie visaktuālākām mūsdienu problēmām, it īpaši intensīvās terapijas nodaļā. Tas bieži vien ir ilgstošas, smagas, izraisa nopietnas problēmas un pat var novest pie pacienta nāves. Šīs infekcijas ir novēršamas, tāpēc jāpievērš liela uzmanība infekciju profilaktiskiem pasākumiem, jānovēro un jāizvērtē māsas rīcība un procedūru izpildes kvalitāte, no kuras ir atkarīga infekciju izplatīšanās kontrole. Bakalaura darbs ir izstrādāts ar mērķi noskaidrot māsas rīcību…
Control zeros and nonminimum phase LTI mimo systems
1999
Abstract The paper presents a new, general, inverse-model/output-zeroing approach to zeros of LTI discrete-time multivariable, possibly nonsquare systems. It is shown on simple examples that the existing definitions of multivariable zeros fail to detect certain important zeros which contribute to zeroing the system output. As a result, a concept of ‘control zeros’ is introduced, followed by a general redefinition of minimum/nonminimum phase systems, both new contributions being based on the notion of (generalized) inverse systems. Output-zeroing/inverse-model/minimum-variance control-related justifications of the new approach are presented.
Evaluation of furanocoumarins from seeds of the wild parsnip (Pastinaca sativa L. s.l.).
2018
Abstract Although the wild parsnip (Pastinaca sativa L. s.l.) fruits are known to contain linear and angular furanocoumarins, the individual components of the seeds have not been fully identified and quantitated, and, in the case of immature seeds, reported. In view of this, the main furanocoumarin compounds were extracted using pyridine, and were isolated using semi-preparative high-performance liquid chromatography. The structural elucidation of isolated compounds was done based on detailed spectral analysis conducted by liquid chromatography–electrospray ionization–mass spectrometry (LC–ESI/MS), 1H and 13C NMR and, where possible, by gas chromatography–mass spectrometry (GC–MS). The quan…
Phytosociological characterization of the Juniperus phoenicea L. subsp. turbinata (Guss.) Nyman formations in the Italo-Tyrrhenian Province (Mediterr…
2012
The Juniperus phoenicea subsp. turbinata formations of the Italo-Tyrrhenian biogeographical province (Mediterranean Region), are analyzed on the basis of literature data and unpublished relevés. The floristic-synecological characterization of the identified phytocoenoses, confirmed by multivariate analysis on a synoptic basis, has allowed their breakdown in four different alliances of the order Pistacio lentisci-Rhamnetalia alaterni: 1) Periplocion angustifoliae, with the association Periploco angustifoliae-Juniperetum turbinatae; 2) Juniperion turbinatae, with the associations Junipero turbinatae-Quercetum calliprini, Rusco aculeati-Quercetum calliprini, Phillyreo angustifoliae-Juniperetum…
Quinones and Benzophenones from the Medicinal Plants of Africa
2013
In this chapter, we discuss the chemistry of quinones and benzophenones: classification, nomenclature, biosynthesis, biological activity, and their distribution in nature. Genera such as Newbouldia, Kigelia, Aloe, Euclea, Diospyros, Bulbine, Rumex, and Kniphofia are rich sources of quinines, while the Guttiferae are rich in polyprenylated benzophenones. Most of these African species offer novel derivatives with interesting biological activities, suggesting that these species are potential sources of new drug candidates if properly investigated.
Un/doing calculation: on knowledge practices of risk management
2011
From small enterprises all the way up to financial markets, economic calculation is an activity routinely conducted in economic life-worlds. This paper argues that calculation is situated in the practice of participants involved in these life-worlds as well as in the technological tools they use. It champions a sociological analysis of the world-constituting character of calculation. As empirical examples the paper discusses risk management strategies, the embeddedness of calculation practices in banking infrastructure, and the process of internal rating procedures. Contesting the idea of the omnipresence of calculation, the paper analyzes the social phenomenon of the neutralization of calc…
Stochastical Real Time Finite State Machine LPC for Planar Manipulator Control System Model estimation
2005
This paper presents a new stochastical real-time LPC (Last Principal Component) algorithm to estimate single-input-single-output (SISO) and multiple-input-multiple-output (MIMO) varying time models from input output data clusters of non stationary black boxes. Each of data clusters is on a time window. An application to estimate the control system model of a planar manipulator is developed. In fact many mathematical models of physical systems are non stationary such as industrial manipulator model. A real time estimation algorithm via stochastical LPC algorithm and an appraiser called "finite state machine" is then described For every data cluster the finite state machine updates the parame…
Teaching Inorganic Photophysics and Photochemistry with Three Ruthenium(II) Polypyridyl Complexes: A Computer-Based Exercise
2015
Among computational methods, DFT (density functional theory) and TD-DFT (time-dependent DFT) are widely used in research to describe, inter alia, the optical properties of transition metal complexes. Inorganic/physical chemistry courses for undergraduate students treat such methods, but quite often only from the theoretical point of view. In the calculation exercise herein described, students are guided step by step through the computational study of the photophysics and photochemistry of polypyridyl Ru(II) d6-metal complexes. In particular, by means of DFT and TD-DFT calculations, they are asked to examine and interpret a set of experimental data describing the absorption, emission, and ph…
Tehokalastuksen vaikutukset mesotrofisen Lappajärven kuorepopulaatioon (Osmerus eperlanus (L.))
2007
Cynipid wasps inducing galls on plants of the genus Picris (Asteraceae) in Europe, with a description of a new species of Phanacis Foerster (Hymenopt…
2008
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