Search results for "rites"

Weathering of evaporites: natural versus anthropogenic signature on the composition of river waters

2015

Weathering of evaporites strongly influences the chemistry of continental runoff, making surface waters poorly exploitable for civil uses. In south-central Sicily, this phenomenon is worsened by the occurrence of abandoned landfills of old sulphur and salt mines. The industrial evolution of the Bosco-S. Cataldo mining site leaved two landfills from the early exploitation of a sulphur mine followed by that of a kainite deposit. In particular, the weathering of these landfills leads the dissolved salt (TDS) values up to about 200 g l−1 in the Stincone–Salito Stream waters. This process induces the V, Cr and Fe desorption from sediments and particulates in the aqueous phase under reducing cond…

The Messian Salinity Crisis and the catastrophic Zanclean flooding of the dessicated Mediterranean: the Red Sea record

2013

Use of functional genes to quantify denitrifiers in the environment.

2006

During the last decade, application of molecular methods using cultivation-independent approaches has provided new insights into the composition and structure of denitrifying communities in various environments. However, little is known about their abundance, and quantification is still performed using cultivation-based approaches, which are not only biased by the inability to cultivate of many micro-organisms but also fastidious and time-consuming. Two types of cultivation-independent approaches have recently been developed to quantify denitrifiers. The first type, which is based on the hybridization technique, comprises the use of Southern hybridization and DNA arrays. The second type, ba…

Uzņēmuma SIA Volburg finanšu analīze

2016

Uzņēmuma finanšu analīze ir uzņēmuma finanšu rādītāju salīdzinājums par periodiem, kuru galvenā funkcija ir sniegt savlaicīgu informāciju uzņēmuma vadībai par to, kādi ir finanšu rādītāji un kādas ir to tendences. Nekvalitatīvas vai novēlotas finanšu analīzes veikšana uzņēmumā, var radīt finanšu rādītāju nekorektu atspoguļojumu, kas attiecīgi rada finansiālus zaudējumus uzņēmumam. Finanšu analīzes nozīme ir tāda, ka ar tās palīdzību tiek savlaicīgi noteikti saimnieciskās darbības kritiskie finanšu rādītāji un tiek identificētas vadlīnijas starp savstarpēji ietekmējošiem faktoriem. Šo vadlīniju identificēšana, palīdz uzņēmuma vadībai veikt nepieciešamās korektīvās rīcības kritisko rādītāju u…

Uzņēmuma SIA "Lielzeltiņi" finansiālā stāvokļa novērtējums

2020

Diplomdarba tēma ir uzņēmuma SIA “Lielzeltiņi” finansiālā stāvokļa novērtējums. Diplomdarba mērķis ir veikt SIA “Lielzeltiņi” finanšu stāvokļa analīzi uz teorētisko un praktisko materiālu pamata, lai konstatētu problēmas, izdarītu secinājumus un izstrādātu priekšlikumus darbības pilveidošanai. Darbs sastāv no četrām nodaļām, teorētiskajā daļā aplūkoti finanšu analīzes rādītāji, pētāmā uzņēmuma un gaļas pārstrādes uzņēmum rakstorojums, praktiskajā daļā balstoties uz SIA “Lielzeltiņi” pārskatiem tiek veikta finanšu analīze, rezultātu salīdzinājums ar konkurentu – AS “Putnu fabrika Ķekava” un vidējiem pārtikas ražošanas nozares rādītājiem. Kā arī izdarīti secinājumi un izstrādāti priekšlikumi.…

Dendrites are dispensable for basic motoneuron function but essential for fine tuning of behavior.

2014

Dendrites are highly complex 3D structures that define neuronal morphology and connectivity and are the predominant sites for synaptic input. Defects in dendritic structure are highly consistent correlates of brain diseases. However, the precise consequences of dendritic structure defects for neuronal function and behavioral performance remain unknown. Here we probe dendritic function by using genetic tools to selectively abolish dendrites in identified Drosophila wing motoneurons without affecting other neuronal properties. We find that these motoneuron dendrites are unexpectedly dispensable for synaptic targeting, qualitatively normal neuronal activity patterns during behavior, and basic …

Natural antioxidants to reduce the oxidation process of meat and meat products

2019

L'oralità dell'immagine. Etnografia visiva nelle comunità rurali siciliane

2018

L’opposizione ipotizzata fra tradizioni orali e scritte, che prevale in antropologia, è ingannevole: in primis perché tende ad annullare l’orale nel contrario dello scritto, e non ne comprende il modo di funzionare specifico; in secondo luogo perché non contempla la possibilità che, tra gli estremi dell’orale puro e dello scritto puro, esistano molte situazioni intermedie. Paradossalmente oggi, nella nostra società così impregnata di immagini, l’oralità è ritornata ad assumere un ruolo centrale proprio per la produzione e la comprensione del codice visivo. Questa «oralità dell’immagine» è connaturata nei nostri comportamenti quotidiani e per questo motivo risulta difficile individuarla e an…

Polarity factor 'Frizzled' in the demosponge Suberites domuncula: identification, expression and localization of the receptor in the epithelium/pinac…

2003

Until recently, it was assumed that polarity and axis formation have evolved only in metazoan phyla higher than Cnidaria. One key molecule involved in the signal transduction causing tissue polarity is Frizzled, a seven-transmembrane receptor that is activated by the Wnt family of secreted proteins. We report the isolation and characterization of a Frizzled gene from the demosponge Suberites domuncula (Sd-Fz). The deduced polypeptide comprises all characteristic domains known from Frizzled receptors of higher metazoans. In situ hybridization studies show that Sd-Fz is expressed in cells close to the surface of the sponges and in the pinacocytes of some canals. Northern blot analysis demonst…

Isolation and characterization of Wnt pathway-related genes from Porifera.

2006

The Wnt signal acts by binding to Frizzled receptors, with the subsequent activation of two different signal transduction cascades, the canonical and the non-canonical Wnt pathways, involved in cell growth, differentiation, migration and fate. The canonical pathway functions through the translocation of beta-catenin to the nucleus and the activation of TCF/LEF transcription factors; it plays an important role in developmental patterning and cell fate decisions during embryogenesis. The non-canonical Wnt pathway is responsible for the planar cell polarity process in invertebrates, and for the convergent-extension movements during vertebrate gastrulation. The final effect of the non-canonical…