Search results for " LED"
showing 10 items of 79 documents
Nurse‐led counseling for coronary artery disease patients: A 1‐year follow‐up study
2021
Nurse-led counseling and systematic follow-up has been shown to reduce cardiovascular risk factor levels. The study aim was to investigate if cardiovascular risk factor levels could be reduced in patients with coronary artery disease with a nurse-led intervention and to report patients’ evaluations of nurse-led counseling. The study design was a real-life longitudinal follow-up counseling intervention. Data were collected from November 2017 to May 2020. The nurse-led intervention and patients’ follow-up time was one year. Of the 78 patients recruited, 74 completed the study. The most significant findings were in the levels of total cholesterol, low-density lipoprotein cholesterol and trigly…
Using Blockchain in Digitalizing Enterprise Legacy Systems: An Experience Report
2021
Blockchain technology and distributed ledger technology (DLT) offer a secure, distributed, and tamper-proof way to store and exchange information. However, apart from standard cryptocurrency-based networks, innovations and process improvements based on the blockchain technology have mostly remained on the conceptualizing stage and have not yet reached mass adoption. There is a high demand for practical experiences from developing blockchain and DLT based systems in various domains outside FinTech. This work seeks to contribute to this gap by presenting real-world experiences from developing a proof of concept for automatizing conditional payments in social benefits and healthcare domains. W…
Vārtājas ledājkušanas ūdeņu drenāžas ieleja
2018
Bakalaura darba mērķis ir izpētīt Vārtājas ledajkušanas ūdeņu drenāžas ielejas ģeomorfoloģisko un ģeoloģisko uzbūvi un attīstību, noskaidrot, kādā deglaciācijas posmā ieleja ir izveidota, un klasificēt, kāda tipa ielejai pieder Vārtājas ieleja. Darba autors, izstrādājot bakalaura darbu, lauku pētījumu ietvaros izveidoja 4 atsegumus, kuros tika veikta fāciju aprakstīšana un trijos atsegumos tika veikti slāņu mērījumi. Iegūtie slāņu mērījumu dati ļāva interpretēt ledājkušanas ūdeņu straumju virzienus. Darba teorētiskajā sadaļā tiek apskatīta teritorijas ģeoloģiskā uzbūve, glacigēnā reljefa uzbūve, fluviālā un glaciofluviālā reljefa uzbūve, deglaciācijas vēsture un Baltijas ledus ezera attīstī…
Effect of methaacrylic acid on the structure of Eu:YAG-PMMA composites
2014
Polymeric composites of lanthanide-doped materials were recently considered as potential candidates for the development of light emitting diodes, lasers and luminescent concentrators for solar cells. In particular, nanoparticles of yttrium aluminum garnet (YAG) doped with cerium ions embedded in polymetylmetacrylate (PMMA) have been valuable for white LED devices [1,2]. Different structures and micromechanical properties have been observed when the methacrylic acid (MAA) is present in the composite. With the aim to understand the effect of MAA on the composite structure, a series of Eu:YAG composites prepared by in situ polymerization starting from mixtures of MAA and methylmetacrylate (MMA…
Regulation of security tokens as financial instruments in the EU: is there a need for amendments?
2022
In 2020 the European Commission proposed laws on crypto-assets and DLT. The EU treats security tokens as financial instruments, provided that they fall into the MiFID II definition. This Thesis aims to provide classification for crypto-asset as a financial instrument, to identify regulatory gaps in the EU legislation applicable to crypto-assets that qualify as financial instruments (security tokens), and to provide recommendations in relation to security tokens regulation in the EU. The results indicate that Amending Directive will harmonize the procedure for classification of a crypto-asset as a financial instrument across the EU, but the requirement for the expected profit to be derived f…
Zvaigžņotā Debess: 2012, Vasara (216)
2012
Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: E.Bervalds. From Intention to Reality (abridged) ; A.Egle. Conceptions of Our Ancestry About Heavenly Bodies and Astronomical Phenomena (abridged) ; NEWS: I.Eglītis. Asteroid Discovered at Baldone Observatory Named after Ikaunieks ; A.Alksnis. ALMA Helps to Study Planetary System of Star Fomalhaut ; A.Alksnis. More than Ten Light-Years Long Filament of Cosmic Dust Discovered ; A.Alksnis. Billions of Rocky Planets in the Milky Way ; SPACE RESEARCH and EXPLORATION: M.Sudārs. The Little Secret Space Shuttle Is Flying! ; M.Sudārs. Too Much Litter! Not in Rubbish Dump, but in the Space! ; “ENERĢIJA un PASAULE” VISITS “ZVAIGŽŅOTĀ DEBESS”: Talk with D…
Zvaigžņotā Debess: 2011, Pavasaris (211)
2011
Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: A.Alksnis. XIV General Assembly of the International Astronomical Union (abridged) ; H.Strods. Jaunlaicene’s Watchmaker (abridged) ; I.Daube. At the Radioastrophysical Observatory of the Latvian Academy of Sciences (abridged). 50 YEARS SINCE GAGARIN’S SPACE FLIGHT: R.Misa. Dream about Cosmos ; A.Zalcmane. Konstantin Tsiolkovsky Astronautics Museum in Kaluga; E.Bērziņa. Outer Space in Pauls Stradins Museum of History of Medicine. NEWS: A.Alksnis. Different Faces of Whirpool Galaxy ; A.Alksnis. The Kleopatra’s Trio and other Minor Planets Groups. SPACE RESEARCH and EXPLORATION: V.Kalniņš. NASA Preparing Solar Probe Plus to Plunge into Sun's Atmos…
Constituents of leaves and flowers essential oils of Helichrysum pallasii (Spreng.) Ledeb. growing wild in Lebanon.
2009
The chemical compositions of the essential oils obtained from leaves and flowers of Helichrysum pallasii were analyzed by gas chromatography and gas chromatography-mass spectrometry. Among the 102 identified constituents, hexadecanoic acid (16.2%), (Z,Z)-9,12-octadecadienoic acid (6.8%), tetradecanoic acid (2.6%), and (Z)-caryophyllene (4.2%) were the main constituent of the oil from leaves, while in the oil from flowers hexadecanoic acid (14.7%), (Z,Z)-9,12-octadecadienoic acid (14.2%), (Z)-caryophyllene (3.6%), and delta-cadinene (3.1%) predominated. The oils were both characterized by sesquiterpenes (33.4% for leaves and 33.7% for flowers, respectively) and fatty acids and esters (30.3% …
Helēnas Ledus - Starcas herbāriji
2022
Raksts par Helēnas Ledus-Starcas (1915 – 2005) herbārijiem Herbarium Latvicum (RIG II), kas glabājas Latvjas Universitātes Muzeja Botānikas un mikoloģijas kolekcijās.
Helēnas Ledus dzimtenes mīlestība
2022
Raksts par latviešu botāniķes Helēnas Ledus-Starcas (1915 – 2005) dzīvi, zinātnisko un sabiedrisko darbību.