Search results for "RMET"
showing 10 items of 236 documents
Temporal dynamic of biofilms enhances the settlement of the central-Mediterranean reef-builder Dendropoma cristatum (Biondi, 1859).
2021
Abstract Research on marine invertebrate settlement provides baseline knowledge for restoration technique implementation, especially for biogenic engineers with limited dispersion ability. Previously, we determined that the maturity of a biofilm strongly enhances the settlement of the vermetid reef-builder Dendropoma cristatum. To elucidate settlement-related biofilm features, here we analyse the structure and composition of marine biofilms over time, through microscopic observations, eukaryotic and prokaryotic fingerprinting analyses and 16S rDNA Illumina sequencing. The vermetid settlement temporal increase matched with the higher biofilm coverage on the substratum and the reduction of th…
CONSERVATION NEEDS FOR THE VERMETID REEFS IN THE MEDITERRANEAN SEA
2015
Vermetid reefs are intertidal bioconstructions typical of many subtropical and temperate coastal areas worldwide. Distributed in the warmest waters of the Mediterranean Sea, the reefs are built by the vermetid gastropod Dendropoma petraeum and the coralline alga Neogoniolithon brassica-florida, two species included in the annexes of the Berna Convention. Vermetid reefs provide a wide set of ecosystem services, such as coastal protection from erosion, regulation of sediment transport and accumulation, serving as carbon deposit and increasing biodiversity at the intertidal level. Despite its vulnerability to several threats, such as pollution, spread of invasive species, ocean acidification a…
Trophic structure and functioning of vermetid reef community based on carbon and nitrogen stable isotope analysis.
2009
Charge-transfer driven by ultrafast spin-transition in a CoFe Prussian blue analogue
2020
Photoinduced charge-transfer is an important process in nature and technology and is responsible for the emergence of exotic functionalities, such as magnetic order for cyanide-bridged bimetallic coordination networks. Despite its broad interest and intensive developments in chemistry and material sciences, the atomic-scale description of the initial photoinduced process, which couples intermetallic charge-transfer and spin transition, has been debated for decades; it has been beyond reach due to its extreme speed. Here we study this process in a prototype cyanide-bridged CoFe system by femtosecond X-ray and optical absorption spectroscopies, enabling the disentanglement of ultrafast electr…
Mesurer la fermeture des paysages en moyenne montagne: recherches d'indices dans le Haut-Jura
2011
National audience
Corispermum intermedium, C. hyssopifolium un C. leptopterum augu sabiedrības, to ietekmējošie faktori un taksonu radniecība
2015
Latvijas endēmam Corispermum intermedium un svešzemju sugām C. hyssopifolium ar C. leptopterum ir ļoti līdzīga gan morfoloģija, gan ekoloģiskie apstākļi. Literatūrā trūkst datu par Corispermum augu sabiedrībām un to sastopamības noteicošajiem ekoloģiskajiem faktoriem. Maģistra darba mērķis – noteikt jūras piekrastes smiltājos sastopamo kamieļzāļu augu sabiedrību piederību un to ietekmējošos faktorus, kā arī C. intermedium, C. hyssopifolium un C. leptopterum radniecību. Corispermum augu sabiedrībām Latvijas smiltājos konstatēta līdzība ar Centrāleiropā sastopamo Bromo tectorum-Corispermetum leptopteri un Corispermum-Ammophila sabiedrību. Augu sabiedrību noteicošais faktors ir nabadzīgs subst…
Ferromagnetic ordering in GdPdCd
2010
Abstract GdPdCd was obtained in pure form via reaction of the elements in a sealed tantalum tube in a high-frequency furnace. The structure was investigated by X-ray diffraction on both powders and single crystals: ZrNiAl type, P 6 2m , a=758.2(1), c=391.78(7) pm, wR2=0.0410 for 358 F2 values and 14 variables. Striking structural motifs of GdPdCd are two types of palladium-centered tricapped trigonal prisms [Pd1Cd3Gd6] and [Pd2Cd6Gd3]. Together the palladium and cadmium atoms build a three-dimensional network in which the gadolinium atoms fill distorted pentagonal channels. Susceptibility measurements reveal Curie–Weiss behaviour with an effective magnetic moment of 8.2(1) μB/Gd. GdPdCd ord…
SPATIAL DISTRIBUTION OF DENDROPOMA CRISTATUM (MOLLUSCA, GASTROPODA) ADULT BIOMASS ON A VERMETID REEF
2023
A spatial characterization of Dendropoma cristatum biomass was carried out on a Vermetid reef in north-western Sicily. Biomass distribution of adult specimens is not homogenous in the different areas of the reef, with an increasing trend from the inner edge to the outer edge, while the central pool supports intermediate values of vermetid biomass. Considering the entire reef area, the cuvette has the highest Dendropoma biomasses of the bioconstruction, even if the highest surface-biomass ratio is found in the outer edege.
Road verges provide alternative habitats for some, but not all, meadow plants
2021
Questions Agricultural intensification has led to the decline of biodiverse meadows and other semi-natural grasslands. Road verges offer potential alternative habitats for meadow species, but they may not be suitable for all meadow species due to different soil properties, frequent disturbances, pollution or suboptimal management. Are the communities of vascular plants and bryophytes similar or dissimilar to those in mown or grazed meadows? What kind of species are associated with road verges, mown meadows or grazed meadows? How do the habitat types differ in their soil conditions and disturbance intensity? Location The study was conducted on 36 sites in Central Finland. Methods We compared…
Vecāku kompetences pilnveide par nepieciešamo atbalstu bērniem ar garīgās attīstības traucējumiem
2020
Diplomdarba tēma: Vecāku kompetences pilnveide par nepieciešamo atbalstu bērniem ar garīgās attīstības traucējumiem. Autore: Ilze Pavlovska Vadītāja: doc., dr. paed. Ilze Šūmane Pētījuma mērķis ir pētīt vecāku informētībās kā kompetences daļu par mācīšanas grūtībām sākumskolā bērniem ar garīgās attīstības traucējumiem un izstrādāt priekšlikumus tās pilnveidei. Pirmā nodaļa veltīta vispārīgam garīgo traucējumu raksturojumam, balstoties uz tādiem avotiem, kā S.Liepiľa, S.Tūbele, A.Šteinberga, E.Landrate,I.Freimanis,valsts izglītības satura centra izstrādātie metodiskie materiāli. Otrajā nodaļā analizētas teorētiskās nostādnes par bērnu ar SV audzināšanu ģimenē. Grūtības, kuras pārdzīvo vecāki…