Search results for "SAP"

Timing of the emergence of the Europe-Sicily bridge (40-17 cal ka BP) and its implications for the spread of modern humans

2014

The submerged sill in the Strait of Messina, which is located today at a minimum depth of 81 m below sea level (bsl), represents the only land connection between Sicily and mainland Italy (and thus Europe) during the last lowstand when the sea level locally stood at about 126 m bsl. Today, the sea crossing to Sicily, although it is less than 4 km at the narrowest point, faces hazardous sea conditions, made famous by the myth of Scylla and Charybdis. Through a multidisciplinary research project, we document the timing and mode of emergence of this land connection during the last 40 kyr. The integrated analysis takes into consideration morphobathymetric and lithological data, and relative sea…

Mapping Retrotransposon LINE-1 Sequences into Two Cebidae Species and Homo sapiens Genomes and a Short Review on Primates

2022

This work focuses on the distribution of LINE-1 (a Long Interspersed Nuclear Element) in primates and its role during evolution and as a constituent of the architecture of primate genomes. To pinpoint the LINE-1 repeat distribution and its role among primates, LINE-1 probes were mapped onto chromosomes of Homo sapiens (Hominidae, Catarrhini), Sapajus apella, and Cebus capucinus (Cebidae, Platyrrhini) using fluorescence in situ hybridisation (FISH). The choice of platyrrhine species are due to the fact they are taxa characterised by a high level of rearrangements; for this reason, they could be a useful model for the study of LINE-1 and chromosome evolution. LINE-1 accumulation was found in …

Sapņi un sapņošana Homēra eposos: funkcionālais aspekts

2016

Bakalaura darba tēma ir Sapņi un sapņošana Homēra eposos: funkcionālais aspekts. Darba mērķis ir pētīt sapņu un sapņošanas funkcionālo aspektu Homēra eposos Īliada un Odiseja. Mērķa sasniegšanai tika izpētīta zinātniskā literatūra par Homēra eposiem, antīko episko stilu un sapņu un sapņošanas nozīmi antīkajā literatūrā. Tika atlasīti sapņi Homēra eposos un sadalīti pa funkcijām – nākotnes paredzējuma funkcija, mudināšanas funkcija un maldināšanas funkcija. Tika izpētīti tēli sapņos un to nozīme, kā arī pats sapņošanas process. Pētījuma laikā tika atklāts, ka sapņu iesaiste literārā darbā var būtiski mainīt notikumu gaitu, kā arī tika gūts priekšstats par sapņu nozīmi antīkajā pasaulē.

Application of accelerated solvent extraction followed by gel performance chromatography and high-performance liquid chromatography for the determina…

2005

Accelerated solvent extraction (ASE) has been evaluated as a fast alternative to methanolic saponification for the extraction of 12 polycyclic aromatic hydrocarbons (PAHs) from mussel tissue. Several solvent systems and different operating conditions were investigated. The mixture dichloromethane-acetone (1:1, v/v) gave the best recoveries at 125 degrees C and 1500 psi, in a total time of 10 min. No yield difference was found between freeze-drying (Fd) or drying the wet mussel with diatomaceous earth (Ded) prior to extraction. The ASE method was validated using the standard reference material SRM 2977, a freeze-dried mussel tissue with naturally present organic contaminants. The performance…

Combined use of eddy covariance and sap flow techniques for partition of ET fluxes and water stress assessment in an irrigated olive orchard

2013

Correct estimation of crop actual transpiration plays a key-role in precision irrigation scheduling, since crop growth and yield are associated to the water passing through the crop. Objective of the work was to assess how the combined use of micro-meteorological techniques (eddy covariance, EC) and physiological measurements (sap flow, SF) allows a better comprehension of the processes involving in the Soil–Plant–Atmosphere continuum. To this aim, an experimental dataset of actual evapotranspiration, plant transpiration, and soil water content measurements was collected in an olive orchard during the midseason phenological period of 2009 and 2010. It was demonstrated that the joint use of …

La consapevolezza metacognitiva degli insegnanti di scuola dell’infanzia nell’uso delle TIC

2018

La metacognizione assume un ruolo significativo nello sviluppo professionale dei docenti. La rilevazione della consapevolezza metacognitiva degli insegnanti nell’uso delle tecnologie didattiche consente di riflettere sul senso e sull’efficacia delle scelte che si operano e, soprattutto, sugli obiettivi che si perseguono. Il presente contributo si prefigge di indagare la consapevolezza metacognitiva degli insegnanti di scuola dell’infanzia durante la realizzazione di un prodotto multimediale. La ricerca è stata condotta nell’anno accademico 2017/18, coinvolgendo 115 inseganti siciliani in servizio frequentanti un corso di formazione riguardante le tecnologie didattiche, della durata compless…

La Iglesia Parroquial y Casa-Abadía de Fuente la Higuera

1996

Diacylglycerols containing Omega 3 and Omega 6 fatty acids bind to RasGRP and modulate MAP kinase activation.

2003

We elucidated the effects of different diacylglycerols (DAGs), i.e. 1-stearoyl-2-arachidonoyl-sn-glycerol (SAG), 1-stearoyl-2-docosahexaenoyl-sn-glycerol (SDG), and 1-stearoyl-2-eicosapentaenoyl-sn-glycerol (SEG), on [3H]PDBu binding to RasGRP. The competition studies with these DAGs on [3H]PDBu binding to RasGRP revealed different Ki values for these DAG molecular species. Furthermore, we transfected human Jurkat T cells by a plasmid containing RasGRP and assessed the implication of endogenous DAGs on activation of MAP kinases ERK1/ERK2, induced by phorbol-12-myristate-13-acetate (PMA). In control cells, GF109203X, a protein kinase C inhibitor, inhibited ERK1/ERK2 activation. However, this…

Headspace Volatile Composition of the Flowers of Caralluma europaea N.E.Br. (Apocynaceae)

2009

The volatile constituents of the flowers of Caralluma (Apteranthes) europaea (Guss.) N.E. Br. (Apocynaceae - Asclepiadoideae) from Lampedusa Island were analyzed by headspace method. The analyses allowed the identification and quantification of 41 compounds. The main components were, among the monoterpenoids, terpinolene (23.3%), a-terpinene (19.1%) and linalool (18.4%), whereas, among the carbonylic compounds the major constituents were heptanal (2.0%), octanoic acid (2.4%) and hexanoic acid (1.7%). It is worth to mention the presence of a nitrogen containing compound, indole (0.8%) and of a sulphur containing compound, dimethylsulphide (t). The compounds found in the flowers of C. europea…

Discussion

1999

Homo sapiens L. has been described as the naked ape, and this nakedness undoubtedly constitutes one of the most striking differences in appearance between man and the apes. Nakedness has been attributed at various times to sexual selection [1], aquatic stage [2], hunting [3], cooling [4], sex [5], neoteny [6] and allometry [7], most proposed explanations logically revealing some aspect of the phenomenon. However, most fail to account for the distinctiveness of man's hairlessness among mammals of the same size. Unfortunately, fossils cannot help us to explain how denudation occurred, and how it helped hominids to survive. In this paper I will present an old hypothesis with a new point of vie…