Search results for "POLE"
showing 10 items of 1981 documents
Ruiša pūķgalve Latvijas Universitātes Muzeja herbārijā
2020
Par Gada augu 2020 tika izvēlēts Latvijas aizsargājamais augs ruiša pūķgalve, ko Latvijā pirmo reizi atradis dabaspētnieks Eduards Lēmanis (1841 – 1902) 1883. gadā Antonopolē. Tas kopā ar citiem ruiša pūķgalves herbārija paraugiem glabājas Latvijas Universitātes Muzeja Botānikas un mikoloģijas kolekcijās. Tie ir gan Latvijā, gan Igaunijā ievākti eksemplāri laika posmā no 1848. līdz 1977. gadam.
Dracocephalum ruyschiana L. (pie Prensas (Antonopole))
1883
Nordischer Drachenkopf: Heidekieferwald bei Presna (Antonopol); Lichte Waldhange bei Nummern (1888.10.07.) /// Ruiša pūķgalve; Atradne: viršu priežu mežs pie Prensas (Antonopole); gaiša meža nogāze pie Numernes. /// Northern Dragon-head, deposit: heather pine forest near Prensa (Antonopole); a bright forest slope near Numerne. [Attēls no LU Muzeja kolekcijas Herbarium Latvicum (RIG II); (BOT1029_21)]
INTERACTIONS OF ORGANOTIN(IV) HALIDES WITH REDUCED GLUTATHIONE IN AQUEOUS-SOLUTION
1993
Abstract Glutathione (GSH) is a compound extremely common among many living organisms in which it plays a fundamental role in the processes of detoxification. Also, organotin(IV) derivatives are more and more commonly used in technological processes or as antitumor drugs. So it seemed interesting to investigate the possible interactions between GSH and organotin compounds in water. Particularly, it has been studied because of its role in the organic radicals linked to the tin center on the stoichiometry and the structure of the adducts. Information was obtained following the reaction between Me n SnCl 4-n (n = 1 to 3) and GSH by Mossbauer and NMR spectroscopies on the assumption that change…
The interaction of organotins with native DNA
1992
The compounds R2SnCl2 and R3SnCl (RMe, Et, nBu, nOct, Ph, in ethanol solution) as well as the aqueous species [Me2Sn(OH2)n]2+ and [Me3Sn(OH2)2]+, react with aqueous native DNA, yielding solid phases. According to the pointcharge model treatment of the 119Sn Mossbauer parameter nuclear quadrupole splitting, trans-octahedral R2Sn(O2PXY)2, and trigonalbipyramidal R3Sn(O2PXY), (RMe, Et, nBu), would occur in the pellets, the tin atoms being coordinated by phosphodiester groups of the nucleic acid. The precipitates from Ph2SnIV would consist of the DNA complex as well as of the Ph2SnIV distannoxane obtained by hydrolysis of the reactant, whilst nOct2SnCl2, nOct3SnCl and Ph3SnCl would mainly yield…
Entropy of transfer of n-nitroalkanes from n-octane to water at 25�C
1984
Entropy of transfer of nitromethane, nitroethane, 1-nitrobutane, 1-nitropentane, and 1-nitrohexane from n-octane to water at 25°C is calculated using an electrostatic model. The calculations indicate that the electrostatic transfer entropy depends primarily on the dipole moment and the size of the-C−NO2 group, showing a trend which is similar to that previously found for the transfer free energy of the same process.
La question du sacrifice animal dans les rites funéraires en Gaule belgique
1998
L'etude des necopoles du l'Age du Fer du nord de la Gaule a revele la pratique courante de l'implication de l'animal dans les rites funeraires humains. Cet usage a deja ete analyse dans plusieurs syntheses, mais l'auteur s'interroge en particulier, dans cet article, sur les modalites de choix et d'acquisition des quartiers de viande dedies au rite et donc des modalites du sacrifice animal et propose d'etudier les indices receuillis a ce sujet dans des necropoles lateniennes du nord de la France, recemment fouillees
Des os dans les fossés et des animaux dans les enclos : diversité des fonctions et limites des interprétations
1999
Des animaux vivants ont pu sejourner de maniere temporaire ou permanente dans certaines des enceintes qui parsement la Gaule au deuxieme Âge du Fer. Mais ils ont pu egalement y etre mis mort, manges ou abandonnes a la decomposition. La diversite des fonctions qu'ont pu remplir les enclos vis-a-vis de l'elevage et de l'usage des animaux est grande. Notre propos est d'essayer de voir dans quelle mesure il est possible de les restituer, et quels indices peuvent nous aider dans cette demarche.
Chronique d’une découverte exceptionnelle : La nécropole et la tombe « princière » de Lavau
2017
Cet article présente la fouille archéologique préventive de Lavau sous l'angle de l'aventure humaine, du décapage, jusqu'au prélèvement du mobilier de la tombe et la fin de l'opération. Il est complété par des éléments de contenu à propos de l'environnement du site, de l'architecture funéraire des grands monuments régionaux contemporains de celui de Lavau, de la datation de la tombe princière et des caractéristiques qui font de cette découverte un ensemble exceptionnel.
Space charge and induced dipole relaxation in solid electrolytes
1996
The space charge relaxation and induced dipole relaxation in solid electrolytes is discussed. The di-electric responses of these relaxations gives a satisfactory fit to the universal conductivity behaviours in the frequency range from DC to infrared.
Binary neutron star mergers: a jet engine for short gamma-ray bursts
2016
We perform magnetohydrodynamic simulations in full general relativity (GRMHD) of quasi-circular, equal-mass, binary neutron stars that undergo merger. The initial stars are irrotational, $n=1$ polytropes and are magnetized. We explore two types of magnetic-field geometries: one where each star is endowed with a dipole magnetic field extending from the interior into the exterior, as in a pulsar, and the other where the dipole field is initially confined to the interior. In both cases the adopted magnetic fields are initially dynamically unimportant. The merger outcome is a hypermassive neutron star that undergoes delayed collapse to a black hole (spin parameter $a/M_{\rm BH} \sim 0.74$) imme…