Search results for "HOF"
showing 10 items of 271 documents
Zvaigžņotā Debess: 2007/08, Ziema
2007
Latvijas Zinātnes padome, Latvijas Universitāte
Der Gerichtshof der reinen Vernunft
2021
Die verschiedenen Urteilsstufen des Gerichtshofes der reinen Vernunft bieten einen privilegierten Zugang zur Erfassung des kantischen Begriffs menschlicher Vernunft in seiner vollen Komplexität. Wenn „menschliche Vernunft“ einerseits ein Vermögen benennt, das zur Grundausstattung unserer Erkenntnisanlagen gehört und als solches „subjektiv als ein menschliches Erkenntnisvermögen“ angesehen wird, dann ist andererseits der Mensch aufgrund eines Besitzes der Vernunft Zeuge von Entwürfen und Ansprüchen, bei deren Entsprechung er angesichts seiner Natur und seiner spezifischen Fähigkeiten nicht entscheidend ist. Die Kritik erfüllt also ihre ureigenste Aufgabe. Und das nicht nur, weil sie den Legi…
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.
An Existence Result for Fractional Kirchhoff-Type Equations
2016
The aim of this paper is to study a class of nonlocal fractional Laplacian equations of Kirchhoff-type. More precisely, by using an appropriate analytical context on fractional Sobolev spaces, we establish the existence of one non-trivial weak solution for nonlocal fractional problems exploiting suitable variational methods.
Organizational Culture Challenges of Adopting Big Data: A Systematic Literature Review
2019
Part 2: Big Data Analytics; International audience; The interest of adopting big data (BD) in organizations has emerged in recent years. Even though many organizations have attempted to adopt BD, the benefits gained by this investment has been limited, and organizations struggle to fully utilize the potential of BD. There has been done several studies on the different challenges and benefits that may occur during the process of adopting and using BD. One major factor that has been discussed in the literature to overcome such challenges has been organizational culture. This paper aims to provide a systematic literature review that reports the organizational culture’s impact on BD adoption th…
Zvaigžņotā Debess: 2005, Vasara
2005
Contents: In memoriam Arturs Balklavs-Grīnhofs ; Parting Words to Arturs Balklavs ; List of Publications by Prof. Dr.phys. Arturs Balklavs-Grīnhofs ; Astronomy in 25 Years of Soviet Latvia ; Man in Space: Based on newspaper “Pravda” materials ; U.Dzērvītis. Centenary of the Theory of Relativity ; A.Balklavs. Gamma Emission from the Galactic Centre ; A.Alksnis, Z.Alksne. Fewer Brown Dwarfs, More Red Ones ; A.Alksnis. New Observations of the Eruptive Variable Star V838 Mon ; A.Balklavs. Cosmic Objects in Captivating Photos – 5 ; J. Freimanis. On Polarization of Continuous Solar Spectrum ; J.Jaunbergs. The Very First Contact with Titan ; A.Millers. Biological Effects of Cosmic Rays ; J.Jansons…
Zvaigžņotā Debess: 2006, Pavasaris
2006
Latvijas Zinātnes padome, Latvijas Universitāte
Psihofizikāla pseidoizohromatiska testa izveide un krāsu izšķirtspējas sliekšņa novērtējums
2015
Elektroniskā versija nesatur pielikumus
Koherentas kustības uztveres sliekšņa noteikšana ar dažādām psihofizikālajām metodēm
2015
Maģistra darbs ir uzrakstīts latviešu valodā uz 45 lapām. Tas satur 28 attēlus, 2 tabulas un 40 atsauces uz literatūras avotiem. Darba mērķis: Noteikt koherentas kustības uztveres slieksni, izmantojot dažādas psihofizikālās metodes. Hipotēze: Izmantojot konstantā stimula metodi koherentas kustības sliekšņa novērtēšanā, iegūstams augstāks slieksnis nekā ar adaptīvo “trepju” metodi. Eksperimenta dalībnieki: 20 dalībnieki, 20-30 gadus veci. Metode: Datorizēta programma, ar kuras algoritma palīdzību uz datora ekrāna tiek projicēts stimuls – koherenti punkti. Rezultāti: Ar konstantā stimula metodi iegūstams augstāks slieksnis nekā ar adaptīvo “trepju” metodi, taču iegūtie rezultāti ir salīdzinām…
Photoaffinity Labeling and Photoaffinity Cross-Linking of Phosphofructokinase-1 from Saccharomyces cerevisiae by 8-Azidoadeninenucleotides
2001
Phosphofructokinase-1 from Saccharomyces cerevisiae is composed of four alpha- and four beta-subunits, each of them carrying catalytic and regulatory bindings sites for MgATP. In this paper, various photoaffinity labels, such as 8-azidoadenosine 5'-triphosphate, 8-azido-1,N6-ethenoadenosine 5'-triphosphate, and 8-N3-3'(2')-O-biotinyl-8-azidoadenosine 5'-triphosphate have been used to study their interaction with the enzyme in the dark and during irradiation. All nucleotidetriphosphates function as phosphate donor forming fructose 1,6-bisphosphate from fructose 6-phosphate. However, the kinetic analysis revealed distinctly differences between them. Photolabeling causes a decrease in enzyme a…