Search results for ":NATURAL SCIENCES"

showing 10 items of 1090 documents

Adhesion and mechanical properties of PDMS-based materials probed with AFM: A review

2018

This work was supported by Russian Science Foundation project grant 18-19-00645 "Adhesion of polymer-based soft materials: from liquid to solid-.

:NATURAL SCIENCES:Physics [Research Subject Categories]
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Synthesis and Vibration Spectroscopy of Nano-Sized Manganese Oxides

2018

The present study has been supported by the Latvian National Research Program IMIS2. One of us, IS, was supported by MES RF RFMEFI61615X0064.

:NATURAL SCIENCES:Physics [Research Subject Categories]General Physics and Astronomy02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology0210 nano-technology01 natural sciences0104 chemical sciencesActa Physica Polonica A
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Synthesis of Eu2+ and Dy3+ Doped Strontium Aluminates and their Properties

2017

Financial support to this project was provided by National Research Programme (IMIS2).

:NATURAL SCIENCES:Physics [Research Subject Categories]luminescencestrontium aluminate phosphorssolution combustion methodspecific surface areapowder XRDKey Engineering Materials
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Ko vēstī Ostlandes (1941-1944) laika ģeoloģiskā karte?

2020

2020. gada 27. janvārī LU Muzeja telpās Kronvalda bulvārī 4 notika pirmās Sarunas Muzejā, kuru centrālais objekts bija karte, kurā redzama ne vien Latvijas, bet arī plašu blakus esošo Krievijas teritoriju ģeoloģiskā uzbūve. Karti 1942. gadā, vācu okupācijas laikā, izdevis Zemes bagātību pētīšanas institūts. Sarunas bija pulcējušas ģeoloģijas jomu pārstāvjus, vēstures pētniekus un citus interesentus. Ģeoloģiskā karte digitalizētā formā ir pieejama LU e-resursu repozitorijā. Pasākums tika ierakstīts, lai tā gaitā pārcilātā informācija saglabātos kā LU Muzeja krājumā un būtu pieejams sabiedrībai. LU Muzeja direktore, Dr. paed. Iveta Gudakovska ievadā pastāstīja, ka sarunas iecerētas kā Muzeja …

:SOCIAL SCIENCES::Social sciences::Political science::Research on Europe [Research Subject Categories]:HUMANITIES and RELIGION::History and philosophy subjects::History subjects::History of science [Research Subject Categories]:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::History of geology and palaeontology [Research Subject Categories]
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Ab initio calculations of pure and Co+2-doped MgF2 crystals

2020

This research was partly supported by the Kazakhstan Science Project № AP05134367«Synthesis of nanocrystals in track templates of SiO2/Si for sensory, nano- and optoelectronic applications», as well as by Latvian Research Council project lzp-2018/1-0214. Calculations were performed on Super Cluster (LASC) in the Institute of Solid State Physics (ISSP) of the University of Latvia. Authors are indebted to S. Piskunov for stimulating discussions.

AB INITIO CALCULATIONSNuclear and High Energy PhysicsMaterials scienceSpin statesBand gapAb initioENERGY GAP02 engineering and technologyFLUORINE COMPOUNDS01 natural sciences7. Clean energyMolecular physicsAb initio quantum chemistry methodsCobalt dopant0103 physical sciencesPhysics::Atomic and Molecular Clusters:NATURAL SCIENCES:Physics [Research Subject Categories]MgF2010306 general physicsFluorideInstrumentationCOBALT DOPANTSDopantCRYSTAL ATOMIC STRUCTUREDopingCOBALT COMPOUNDSMAGNESIUM COMPOUNDSDOPANT ENERGY LEVELS021001 nanoscience & nanotechnologyVIBRATIONAL STRUCTURESCALCULATIONSCRYSTALSGROUND STATELinear combination of atomic orbitalsCELL PROLIFERATIONAb initioGROUND STATE LEVELS0210 nano-technologyGround state
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Systematic Trends in Hybrid-DFT Computations of BaTiO3/SrTiO3, PbTiO3/SrTiO3 and PbZrO3/SrZrO3 (001) Hetero Structures

2022

We acknowledge the financial support from the funder—Latvian Council of Science. The funding number is: Grant No. LZP-2020/1-0345. The Institute of Solid State Physics, University of Latvia (Latvia), as the Centre of Excellence, has received funding from the European Unions Horizon 2020 Framework Programme H2020-WIDESPREAD01-2016-2017-Teaming Phase2 under Grant Agreement No. 739508, project CAMART-2.

ABO3 perovskites(001)interfaces:NATURAL SCIENCES::Physics [Research Subject Categories]BaTiO3/SrTiO3SrZrO3/PbZrO3ABO<sub>3</sub> perovskites; (001)interfaces; BaTiO<sub>3</sub>/SrTiO<sub>3</sub>; PbTiO<sub>3</sub>/SrTiO<sub>3</sub>; SrZrO<sub>3</sub>/PbZrO<sub>3</sub>Condensed Matter PhysicsElectronic Optical and Magnetic MaterialsCondensed Matter
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Lung on a Chip Development from Off-Stoichiometry Thiol–Ene Polymer

2021

Institute of Solid-State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2. Finally, we would like to thank Biol. Kaspars Tars from Latvian Biomedical research and study center for giving us the opportunity to participate in this consortium and contribute to Latvian scientists’ effort in response to the COVID-19 pandemic.

Absorption (pharmacology)Materials scienceNanotechnology02 engineering and technologyOrgan-on-a-chipArticlelung on a chip03 medical and health scienceschemistry.chemical_compoundPDMS:NATURAL SCIENCES:Physics [Research Subject Categories]TJ1-1570Mechanical engineering and machineryElectrical and Electronic Engineering030304 developmental biologychemistry.chemical_classification0303 health sciencesPolydimethylsiloxaneMechanical Engineeringoff-stoichiometry thiol–enefungitechnology industry and agricultureorgan on a chipPolymer021001 nanoscience & nanotechnologyFluorescenceSmall moleculeMembranechemistryControl and Systems EngineeringThiol0210 nano-technologyMicromachines
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Analysis of the U L3-edge X-ray absorption spectra in UO2 using molecular dynamics simulations

2017

This work was supported by a grant from the Swiss National Supercomputing Centre (CSCS) under the project ID s444. The resource allocation within the PSI share at CSCS and on the PSI compute cluster Merlin4 is also acknowledged. D. B. is grateful for a fellowship within the Sciex-NMS programme. A. K. was supported by Latvian Science Council Grant no. 187/2012.

Absorption spectroscopyUranium dioxideAb initioEnergy Engineering and Power Technologychemistry.chemical_elementNanotechnology02 engineering and technologyMolecular dynamics01 natural sciencesMolecular physicschemistry.chemical_compoundUranium dioxide0103 physical sciences:NATURAL SCIENCES:Physics [Research Subject Categories]Safety Risk Reliability and QualitySpectroscopyAbsorption (electromagnetic radiation)Waste Management and Disposal010302 applied physicsPhysicsX-ray absorption spectroscopyExtended X-ray absorption fine structureX-ray absorption spectroscopyUranium021001 nanoscience & nanotechnologyEXAFSNuclear Energy and Engineeringchemistry0210 nano-technologyCP2K
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Latvijas kvarca smiltis

2017

Izdevums tapis ar Valsts pētījumu programmas Nr. 2014.10-4/VPP-6/4 1. projekta GEO atbalstu.

Aizsargājamie ģeoloģiskie objekti - LatvijaDerīgie izrakteņi - LatvijaSmiltis:NATURAL SCIENCES::Earth sciences [Research Subject Categories]
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Zvaigžņotā Debess: 2017, Pavasaris (235)

2017

Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: E.Mūkins. Clouds of Venus: Structure and Composition (abridged) ; J.Miezis. 3rd All-union Young Astronomers Gathering (abridged) ; DEVELOPMENTS in SCIENCE: K.Schwartz. New Discoveries in the Milky Way ; DISCOVERIES: I.Eglītis. Small Planets Get Latvian Names ; I.Pundure. Earth-mass World Revealed around Proxima Centauri ; SPACE RESEARCH and EXPLORATION: J.Jaunbergs. Mysteries of Saturn’s Clouds ; A.Slavinskis. Contribution of Estonian Student Satellite Programme ESTCube to Largest Challenges for Humanity ; R.Misa. Impossible Engine that Is likely Possible ; I.Pundure. ESO VLT to Search for Planets in Alpha Centauri System ; EARTH and COSMOS: J.…

Akadēmiķim Oļģertam Dumbrājam – Artura Balklava balva 2017Kosmologs un matemātiķis abats Žoržs LemetrsStarptautiskā matemātikas olimpiāde 2015 – uzdevumu atrisinājumiErnestam Ābelem – 110Pasaules laiks UTC 31.XII 2016. liekā sekunde un LU AI atompulkstenisAsteroīdi – Saule EglitisZemes masas citplanēta Proxima bDzinējs EmDriveIgaunijas Studentu satelītu programma ESTCubeZemes vulkānismsLU Astronomiskais tornis – trešā desmitgadePiena Ceļa galaktika – struktūraSeminārs “Ērglis 2016” MazsalacāESO VLT – planētas Centaura Alfas sistēmāMārīte Eglīte (1951-2016)Vidējās masas melnā cauruma kandidātsTiho Brahe Vēnas salāDebess spīdekļi – 2017.gada pavasarisAgrim J. Kalnājam – 80Nozīmīgākie sasniegumi Latvijas zinātnē 2016:NATURAL SCIENCES::Physics::Astronomy and astrophysics [Research Subject Categories]Saturns – atmosfēraĶīnas nesējraķete CZ-5Mārim Ābelem – 80Zvaigžņotais visums grafikas mākslāIzstāde LU Bibiliotēkā – ar Latviju saistīti asteroīdu nosaukumi
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