Search results for "LIES"
showing 10 items of 1093 documents
Temperature dependence of desolvation effects in hydrogen-bonded spin crossover complexes
2021
The synthesis, crystal structure and (photo)magnetic properties of the anhydrous spin crossover salt of formula [Fe(bpp)2](C6H8O4) (1) (bpp = 2,6-bis(pyrazol-3-yl)pyridine; C6H8O4 = adipate dianion), obtained by desolvation at 400 K of the original tetrahydrate in a single-crystal-to-single-crystal (SC–SC) transformation, are reported. This work offers a comparison between this compound and the previously reported hydrated material ([Fe(bpp)2](C6H8O4)·4H2O, 1·4H2O), highlighting the significance of the thermal conditions used in the dehydration-rehydration processes. In both compounds, a hydrogen-bonded network between iron(II) complexes and adipate anions is observed. The original tetrahyd…
Insertion of a [Fe II (pyimH) 3 ] 2+ [pyimH = 2‐(1 H ‐Imidazol‐2‐yl)pyridine] Spin‐Crossover Complex Inside a Ferromagnetic Lattice Based on a Chiral…
2015
The insertion of the [FeII(pyimH)3]2+ [pyimH = 2-(1H-imidazol-2-yl)pyridine] spin-crossover complex into a ferromagnetic bimetallic oxalate network affords the hybrid compound [FeII(pyimH)3][MnIICrIII(ox)3]2·X (ox = C2O42–). This spin-crossover complex templates the growth of crystals formed by a chiral 3D oxalate network. The magnetic properties of this hybrid magnet show the coexistence of long-range ferromagnetic ordering at 4.5 K and a spin crossover of the intercalated [FeII(pyimH)3]2+ complex above 250 K. The compound presents a light-induced excited spin-state trapping (LIESST) effect below 60 K although with limited photoconversion (less than 8 %).
An overview of the Ephydridae (Diptera) of Saudi Arabia
2019
Despite the species richness of Ephydridae world-wide (2000 species) and its prominent environmental roles as a minor pest and as a food for wildlife, only 13 species have been recorded from Saudi Arabia. Between 2012 and 2016, a biodiversity study of Diptera was conducted at Jazan, Asir, and Najran in south-western Saudi Arabia, at 22 sites, was performed mainly using Malaise traps and sweep nets. In this study, 43 known species of Ephydridae were identified, 37 of them for the first time from southwestern Saudi Arabia and 16 from Arabian Peninsula. This brings the total number of Ephydridae species in Saudi Arabia to 49 (including previous records). There were a further four species, whic…
On the analysis of viability data: an example with Drosophila.
1990
Larval competition experiments involving two wild type and eight mutant strains of Drosophila melanogaster have been carried out following the substitution procedure proposed by Mather and Caligari (1981). Our main goal has been to compare the competitive abilities of two phenotypically indistinguishable strains (wild and Oregon-R) by means of their responses with eight different mutants. Prior to the analyses of viability data, we have studied the normalizing effect of several transformations in order to determine which was best suited for the analyses. The differences found among the five transformations tested and the untransformed data were not very great. The folded power transformatio…
Lucian, a new Odysseus? : role and issue of a Homeric character in the work of Lucian of Samosata
2015
The aim of our thesis, which comes within the scope of considering the process of rewriting classic texts in the time period of the second sophistic, is to study the unique importance of Odysseus in the writings of Lucian of Samosata. At first, Odysseus is distinguished from Achilles, a character more monolithic who, even in Homer’s works is constructed in contrast to Odysseus. Moreover, from an isolated quote to intricate references, scattered to create echoes between works seemingly very different, the context in which Odysseus appears is more elaborate and subtler than that of Achilles. Hence, studying and comparing references to both heroes is sufficient to imply Odysseus’ primacy, asso…
Synthesis, physico-chemical and biological study of trialkylsiloxyalkyl amine coated iron oxide/oleic acid magnetic nanoparticles for the treatment o…
2008
New original water-soluble magnetic nanoparticles based on natural components, magnetite–oleic acid–biologically active silyl modified alkanolamine, were synthesized. Physico-chemical characterization, i.e. magnetic properties, concentration of magnetite, size of iron oxide core, of the nanoparticles synthesized and the corresponding magnetic fluids obtained, was carried out. Magnetic fluids were screened for in vitro cytotoxicity concerning human fibrosarcoma (HT-1080), mouse hepatoma (MG-22A) monolayer tumour cell lines and normal mouse fibroblasts (NIH 3T3). They possess low or moderate cytotoxic effects, are non-toxic, exhibit high NO-induction ability and strongly change tumour cell mo…
DELL’UTRI E CONTRADA “GEMELLI DIVERSI”: È LA REVISIONE EUROPEA LO STRUMENTO DI OTTEMPERANZA ALLE SENTENZE CEDU
2017
La Cassazione nega l’origine giurisprudenziale del concorso esterno in associazione mafiosa e individua il rimedio della revisione europea per l’attuazione della decisione CEDU nei confronti di soggetti in posizioni simili a quella di Contrada. Il percorso offre l’occasione per riflettere sulla connotazione “oggettiva” della prevedibilità e sull’uguaglianza di trattamento dei condannati. Italian supreme Court denies that the origin of external participation in mafia-type criminal association lies in case law and envisages the European review as the tool to comply with ECtHR judgements in similar cases to that of Contrada. This jurisprudence provides a proper opportunity for an in-depth exam…
Zvaigžņotā Debess: 2007/08, Ziema
2007
Latvijas Zinātnes padome, Latvijas Universitāte
Unterschiede im Erhaltungszustand zwischen vorderem und hinterem Kreuzband bei rheumatoider Arthritis
2008
In rheumatoid arthritis (RA) we examined the cruciate ligaments of 16 patients by the use of light- and transmission electron microscopy. Considerable differences between the anterior (ACL) and the posterior cruciate ligament (PCL) were observed. The ACL showed dramatic ultrastructural changes, against that the PCL was compact and well conserved. The preservation of PCL in joint surgery can morphologically be recommended. Perhaps the greater inflammatory process on the surface of ACL is responsible for the observed differences.
Zvaigžņotā Debess: 60.gadskārta
2019
Contents: In Remembrance of Jānis Ikaunieks, Arturs Balklavs and Andrejs Alksnis: I.Pundure. «ZVAIGŽŅOTĀ DEBESS» Was Leading to the Truth … ; I.Pundure. Astronomers of Latvian Origin in IAU Management ; DISCOVERIES: I.Pundure. Gaia’s Most Accurate Star Map of Milky Way and Its Surroundings ; SPACE RESEARCH and EXPLORATION: I.Pundure. ESA Selects Three New Missions to Explore the Universe ; LATVIAN SCIENTISTS: The List of Popular Science Papers (1958-2016) by Professor Andrejs Alksnis (concluded) ; In memoriam: Dr.sc.ing. Edgars Bervalds (1936-2019) ; In memoriam: Dr.phys. Natālija Cimahoviča (1926-2019) ; FLASHBACK: I.Pundure. On Hawking’s Publication in the Vatican’s Commentarii Series ; F…