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showing 10 items of 120 documents
Confined crystallization of a HKUST-1 metal–organic framework within mesostructured silica with enhanced structural resistance towards water
2017
A HKUST-1 metal–organic framework was crystallized in the NH2-modified mesostructured silica FDU-12 in order to improve its structural stability upon water exposure. In-depth structural characterization studies of the designed composite confirmed successful formation of the MOF phase within the ordered spherical mesopores of the silica matrix. In spite of the confinement within the cavities, MOF exhibits full accessibility for the adsorbed gas molecules. In contrast to the bulk HKUST-1, which undergoes slow phase transition in a humid environment, the structural integrity of the HKUST-1 in the humid-protective matrix remains unchanged even after immersion and stirring in water at elevated t…
Syntaxonomic survey of the class Pegano-Salsoletea in Italy
2012
After a general outline on the syntaxonomical framework of the class Pegano harmalae-Salsoletea vermiculatae Br.-Bl. & O. Bolos 1958, the occurrence of this vegetation in the Italian territory is examined. In Italy, this vegetation is mostly found on clayish or marly substrata, particularly if slightly enriched with nitrates and chlorides. With reference to the Rivas-Martı´nez bioclimatic classification, the Italian stands have an infra- to thermo-Mediterranean thermotype (marginally up to the meso- Mediterranean one) with dry or arid ombrotype. In particular, this vegetation is well represented in Sicily, while in Sardinia and along the Italian Peninsula, it progressively becomes more rare…
Preferenču izvēles mehānismu ietekme un vēlēšanu sistēmas modelēšana
2017
Sabiedriskās izvēles teorijas problēmā par godīgākās un balsotāju preferencēm atbilstošākās sociālās izvēles funkcijas meklējumiem, ir radušies vairāki lēmuma pieņemšanas mehānismi. Vēlēšanas ir plašākais process, kur var izmantot šādus mehānismus. Tomēr, neskatoties uz pasaulē novērojamo vēlēšanu sistēmu daudzveidība, Latvijas Republikā vēlētājs ir limitēts ar tikai vienu balsi par vienu partiju. Darba mērķis ir izpētīt dažādus potenciālos vēlēšanu modeļus, kuros tiek noteikta iespēja atzīmēt vairāk par vēlētāja pirmo izvēli. Tiek izpētīti pieci modeļi. Pētījuma ietvarā tiek noskaidrots, ka šādi modeļi dotu nozīmīgi atšķirīgus rezultātus. Tiek secināts, ka 5 % barjeru pārvarētu vairāk part…
Synthesis of C3/C1-Substituted Tetrahydroisoquinolines
2015
A broad biological screening of the natural alkaloid N-methylisosalsoline (2) extracted from Hammada scoparia leaves against a panel of human and parasitic proteases revealed an interesting activity profile of 2 towards human 20S proteasome. This outcome suggests that the 1,2,3,4-tetrahydroisoquinoline skeleton may be exploited as a template for the development of novel anticancer agents. In this article, we report the synthesis and chemical characterization of a new series of isosalsoline-type alkaloids (10-11) with variations at N2 and C3 positions with respect to the natural Compound 2, obtained by a synthetic strategy that involves the Bischler-Napieralski cyclization. The substrate for…
Tautas nobalsošanas institūts demokrātiskā valstī
2020
Maģistra darbā "Tautas nobalsošanas institūts demokrātiskā valstī" autors analizē tautas nobalsošanas institūta normatīvo regulējumu, piemērošanas praksi Latvijā un valstīs ar salīdzināmu tiesību sistēmu. Maģistra darba mērķis ir izpētīt tautas nobalsošanas institūta normatīvo regulējumu un piemērošanas praksi, sniedzot priekšlikumus to pilnveidošanai. Maģistra darba izstrādē autors ir izmantojis vēsturiskās analīzes metodi, lai parādītu tautas nobalsošanas institūta vēsturisko attīstību, salīdzinošās analīzes metodi - lai salīdzinātu attiecināmo normatīvo regulējumu un tiesību normu piemērošanas praksi Latvijā un atsevišķās ārvalstīs, induktīvo metodi - lai no atsevišķiem secinājumiem izda…
Fraudolente alterazioni fisiche per impedire l’identificazione personale (art. 495-ter)
2022
Trattazione scientifica e divulgativa del delitto di cui all'art. 495-ter c.p.
False dichiarazioni alla pubblica autorità sulle proprie o altrui identità o qualità personali (artt. 495-496)
2022
Trattazione scientifica e divulgativa dei reati di cui agli artt. 495 e 496 c.p.
Paesaggi urbani e rurali nella Sicilia di Tommaso Fazello: note di geomorfologia e archeologia
2014
The studies of Sicilian ancient landscapes, the histories of sites, towns and marks of antiquity, have necessarily to trace back to Tommaso Fazello’s book. Before him, nobody else had offered such a detailed depiction of ancient Sicily, and the methodology of his research is still very authentic. In addition to describing the ruins of ancient cities and identifying them (Selinunte is for instance a very special case), one could affirm that Fazello’s interest was also in the natural characterization and transformation of both rural and urban landscapes. In brief, it is possible to define the figure of Fazello in terms of a geoarchaeologist ante litteram. The descriptions of some towns – the …
Kali dodecanesicum (Chenopodiaceae, Salsoloideae) a new species from Greece
2015
Kali dodecanesicum, a new species from some islands (i.e. Rhodes, Kos and Nisyros) of the Dodecanese in the south-eastern Aegean (Greece), is described and illustrated. According to recent literature, Kali is treated as a distinct genus from the polyphyletic Salsola s.l., which includes several annual species. The new species is morphologically well separated from the other Kali taxa mainly for the shape of the fruiting perianth, showing closer relationships with Kali ponticum. Its ecological requirements, distribution, and conservation status are also examined, together with an analytic key of the Kali species occurring in the Mediterranean area.
On the hybrid origin of the C2Salsola divaricata agg. (Amaranthaceae) from C3 and C4 parental lineages
2021
AbstractC2 photosynthesis is characterized by recapturing photorespiratory CO2 by RuBisCO in Kranz-like cells and is therefore physiologically intermediate between C3 and C4 photosynthesis. C2 can be interpreted as an evolutionary precursor of C4 and/or as the result of hybridization between a C3 and C4 lineage.We compared the expression of photosynthetic traits among populations of the Salsola divaricata agg. (C2) from humid subtropical to arid habitats on the coasts of the Canary Islands and Morocco and subjected them to salt and drought treatments. We screened for enhanced C4-like expression of traits related to habitat or treatment. We estimated species trees with a transcriptome datase…