Search results for "Opus"
showing 10 items of 346 documents
Übertragung von Verhaltensweisen durch Transplantation von Anlagen neuroanatomischer Strukturen bei Amphibienlarven: I. Xenoplastischer Austausch von…
2010
By transplantation of parts of the neural plate (latter medulla oblongata) from Xenopus laevis (Daud.) to Hymenochirus boettgeri (Torn.) larval chimaeras were obtained, which showed donorlike rhythmical movements of the mouth and pharyngeal region, movements which the host species lacks. Nevertheless, some of these tadpoles were still able to catch small prey in a reaction which is typical for the host and lacking in the donor.
Latvijas Universitātes publikāciju citējamība datubāzēs (2012-2015)
2016
Prasības izmantot citējamības datubāzes zinātniskās darbības novērtējumam ir noteiktas Latvijā spēkā esošajos normatīvajos aktos. Tās ir noderīgas arī, lai veicinātu starptautisko zinātnikso sadarbību. LU publikāciju skaits, kuras izdotas laikā no 2012. līdz 2015. gadam, saglabājas vienādā līmenī. Pieaug rakstu, bet samazinās konferenču publikāciju īpatsvars. Starptautiskajā zinātnes telpā visplašāk ir pārstāvētas publikācijas fizikā, dabaszinātnēs un inženierzinātnēs. LU publikāciju citējamībai ir vērojama augšupejoša tendence. --- The requirements to use citation databases for scientific work productivity evaluation is determined in the legislation of Latvia, as well as it is useful for p…
Tradición y Melodismo en el Género Chico: la producción lírica de José Serrano
2016
El presente artículo analiza los rasgos característicos de la obra lírica del maestro José Serrano Simeón, probablemente el compositor de zarzuelas más relevante del siglo XX, así como las opiniones que la crítica especializada de la época llevó a cabo sobre su insigne producción. La riqueza melódica de sus obras, que tenía su origen en la música popular española, la variedad rítmica de las mismas y su sencilla y eficaz instrumentación son tan sólo algunos de los rasgos más representativos de su magna obra.
Portal Hypertension and Ascites: Patient-and Population-centered Clinical Practice Guidelines by the Italian Association for the Study of the Liver (…
2021
Abstract Portal hypertension and ascites are two crucial events in the natural history of liver cirrhosis, whose appearance marks a downward shift in the prognosis of the disease. Over the years, several international and national societies have issued clinical practice guidelines for the diagnosis and management of portal hypertension and ascites. The present document addresses the needs of an updated guidance on the clinical management of these conditions. Accordingly, the AISF Governing Board appointed a multi-disciplinary committee of experts for drafting an update of the most recent EASL Clinical Practice Guidelines. The aim of this work was to adapt the EASL recommendations to nationa…
A critical conspectus of Italian Lycopodiaceae
2015
As a result of our work on the Lycopodiaceae account for the Critical Flora of Italy, a new, synonymic inventory of Italian taxa is presented, based on herbarium studies and critical re-examination of extant literature. Three genera with eight species are accepted: Huperzia (1 species), Lycopodiella (1), and Lycopodium (6). An additional, ninth species (Lycopodiella cernua) is listed as a casual alien. The genus Diphasiastrum, accepted in several recent works, is treated at sectional level within Lycopodium (three species and their three hybrids). Lycopodium lagopus ( = L. clavatum subsp. monostachyon) is a recent addition to the Italian flora. Images of five types and Internet URI of other…
A chimera carrying the functional domain of the orphan protein SLC7A14 in the backbone of SLC7A2 mediates trans-stimulated arginine transport.
2012
In human skin fibroblasts, a lysosomal transport system specific for cationic amino acids has been described and named system c. We asked if SLC7A14 (solute carrier family 7 member A14), an orphan protein assigned to the SLC7 subfamily of cationic amino acid transporters (CATs) due to sequence homology, may represent system c. Fusion proteins between SLC7A14 and enhanced GFP localized to intracellular vesicles, co-staining with the lysosomal marker LysoTracker(®). To perform transport studies, we first tried to redirect SLC7A14 to the plasma membrane (by mutating putative lysosomal targeting motifs) but without success. We then created a chimera carrying the backbone of human (h) CAT-2 and …
Starfish and Xenopus oocyte maturation
2007
Treatment with heavy metals, such as nickel, lead or cadmium, elicits different cellular stress responses according to the metal used and the length of treatment. In Paracentrotus lividus embryos the inducible forms of HSP70 (HSP70/72) are different in molecular mass from the constitutively expressed HSP75, and they can be used as markers of cellular stress. Even a short treatment with each metal induces the synthesis of HSP70/72 which remain stable for at least 20h and differ little in their isoelectric points. Continuous treatment from fertilization with nickel or lead produces late irregular pluteus embryos, with peak HSP70/72 synthesis at blastula followed by the arrest of synthesis by …
Multiple actions of fenamates and other nonsteroidal anti-inflammatory drugs on GABAA receptors
2019
The nonsteroidal anti-inflammatory drug (NSAID) niflumic acid, a fenamate in structure, has many molecular targets, one of them being specific subtypes of the main inhibitory ligand-gated anion channel, the GABA(A) receptor. Here, we report on the effects of other fenamates and other classes of NSAIDs on brain picrotoxinin-sensitive GABA A receptors, using an autoradiographic assay with [S-35]TBPS as a ligand on mouse brain sections. We found that the other fenamates studied (flufenamic acid, meclofenamic acid, mefenamic acid and tolfenamic acid) affected the autoradiographic signal at low micromolar concentrations in a facilitatory-like allosteric fashion, i.e., without having affinity to …
Mammary odor cues and pheromones: mammalian infant-directed communication about maternal state, mammae, and milk
2010
International audience; Neonatal mammals are exposed to an outstandingly powerful selective pressure at birth, and any mean to alleviate their localization effort and accelerate acceptance to orally grasp a nipple and ingest milk should have had advantageous consequences over evolutionary time. Thus, it is essential for females to display a biological interface structure that is sensorily conspicuous and executively easy for their newborns. Females' strategy to increase the conspicuousness of nipples could only exploit the newborns' most advanced and conserved sensory systems, touch and olfaction, and selection has accordingly shaped tactilely and olfactorily conspicuous mammary structures.…
Specific expression of olfactory binding protein in the aerial olfactory cavity of adult and developing Xenopus
2005
International audience