Search results for "OMAS"
showing 10 items of 1725 documents
The Antarctic yeast Candida sake: Understanding cold metabolism impact on wine
2017
Current winemaking trends include low-temperature fermentations and using non-Saccharomyces yeasts as the most promising tools to produce lower alcohol and increased aromatic complexity wines. Here we explored the oenological attributes of a C. sake strain, H14Cs, isolated in the sub-Antarctic region. As expected, the cold sea water yeast strain showed greater cold growth, Na+-toxicity resistance and freeze tolerance than the S. cerevisiae QA23 strain, which we used as a commercial wine yeast control. C. sake H14Cs was found to be more sensitive to ethanol. The fermentation trials of low-sugar content must demonstrated that C. sake H14Cs allowed the cold-induced lag phase of growth to be el…
Model-based biotechnological potential analysis of Kluyveromyces marxianus central metabolism
2016
Abstract The non-conventional yeast Kluyveromyces marxianus is an emerging industrial producer for many biotechnological processes. Here, we show the application of a biomass-linked stoichiometric model of central metabolism that is experimentally validated, and mass and charge balanced for assessing the carbon conversion efficiency of wild type and modified K. marxianus. Pairs of substrates (lactose, glucose, inulin, xylose) and products (ethanol, acetate, lactate, glycerol, ethyl acetate, succinate, glutamate, phenylethanol and phenylalanine) are examined by various modelling and optimisation methods. Our model reveals the organism’s potential for industrial application and metabolic engi…
Synthèse et formulation de résines photopolymérisables issues de la biomasse : application pour l'impression Braille
2014
The work of the PhD deals with the synthesis of polymerizable monomers derived from biomass, the study of their photopolymerization and the characterization of the resulting materials. The formulated monomers were tested in a printing method of Braille characters.The monomers were prepared in a two-steps reaction that is simple, economic and environmentally friendly. The first step comprised a reaction between glycerol derivatives (glycerol carbonate or glycidol) and fatty acids. In the second step, the obtained [alpha]-monoglycerides were functionalized to obtain photopolymerizable monomers. The different obtained monomers that bear (meth)acrylate and/or epoxy groups were photopolymerized …
Svarīgāko klīnisko faktoru ietekme uz pacientu ārstēšanas rezultātu pie spontānām intracerebrālām hematomām
2018
Spontānas intracerebrālas hematomas sastāda 15% no visiem insultiem pieaugušo vecumā, bet šīs pataloģijas letalitāte pirmā mēneša laikā atbilst 40%. Pēdējās vadlīnijas (2015. gada) saglabājas daudz neskaidru jautājumu par optimālo terapiju, izvēles taktiku intracerebrālas hematomas ārstēšanā. Pētījuma mērķis: uzlabot pacientu stāvokļa novērtēšanu un attiecīgās ārstēšanas pielāgošanu pacientiem. Pētījuma rezultāti: Funkcionālais iznākums korelē ar GKS(r=0,5), spontānas intracerebrālas hematomas tilpumu (r=0,4) un smadzeņu viduslīnijas dislokācija (r=0,3). Spontānas intracerebrālas hematomas tilpums (p<0,0001), smadzeņu viduslīnijas dislokācija (p<0,0001), intraventrikulārās hemorāģijas esamī…
Global distributions of diazotrophs abundance and biomass - Depth integrated values computed from a collection of source datasets - Contribution to t…
2013
The MAREDAT atlas covers 11 types of plankton, ranging in size from bacteria to jellyfish. Together, these plankton groups determine the health and productivity of the global ocean and play a vital role in the global carbon cycle. Working within a uniform and consistent spatial and depth grid (map) of the global ocean, the researchers compiled thousands and tens of thousands of data points to identify regions of plankton abundance and scarcity as well as areas of data abundance and scarcity. At many of the grid points, the MAREDAT team accomplished the difficult conversion from abundance (numbers of organisms) to biomass (carbon mass of organisms). The MAREDAT atlas provides an unprecedente…
DEEP EUTECTIC SOLVENTS E LIQUIDI IONICI: SOLVENTI PER LO SVILUPPO DI PROCESSI ECO-COMPATIBILI
2020
L’obiettivo di questi tre anni di Dottorato è stato lo studio e l’utilizzo nuovi solventi di reazione in grado di sostituire i solventi organici classici. In particolare sono stati studiati i Deep Eutectic Solvent (DES) e le miscele di Liquidi Ionici (IL). I DES sono stati utilizzati come solventi per lo studio di reazioni organiche, usate per la formazione di nuovi legami C-C. Nello specifico sono state studiate la reazione di Diels-Alder, e diverse reazioni di coupling C-C catalizzate da Pd. In seguito, i DES sono stati utilizzati per la formazione di nuovi gel supramolecolari, chiamati eutectogel. Questi gel sono stati formati usando come gelator amminoacidi naturali, consentendo quindi …
Greenhouse gases from wastewater treatment — A review of modelling tools
2016
Nitrous oxide, carbon dioxide and methane are greenhouse gases (GHG) emitted from wastewater treatment that contribute to its carbon footprint. As a result of the increasing awareness of GHG emissions from wastewater treatment plants (WWTPs), new modelling, design, and operational tools have been developed to address and reduce GHG emissions at the plant-wide scale and beyond. This paper reviews the state-of-the-art and the recently developed tools used to understand and manage GHG emissions from WWTPs, and discusses open problems and research gaps. The literature review reveals that knowledge on the processes related to N2O formation, especially due to autotrophic biomass, is still incompl…
Nazwa własna a nazwa pospolita – dylematy z pogranicza chrematonimii
2019
<p>Przedmiotem artykułu są nazwy produktów cukierniczych, które jako chrematonimy sytuują się na pograniczu nazw własnych. Materiał wyekscerpowany został z różnych blogów kulinarnych, dostępnych w latach 2017–2018. Cel rozważań to odpowiedź na pytania z zakresu onomastyki, gdzie jest granica między nazwą własną a pospolitą i czy jest możliwe precyzyjne jej wyznaczenie. Analiza semantyczna onimów, określenie ich funkcji (marketingowo-perswazyjnej) i testy gramatyczne (test orzecznikowy i zaimkowy), którym poddano poszczególne jednostki, prowadzą do podziału nazw produktów na trzy grupy: nazwy pospolite, nazwy pospolite z członem dyferencjalnym i nazwy własne. Istnieją jednak elementy p…
LO STUDIO DELLE MATRICI GEOMETRICHE DEL PROGETTO PER LA CHIESA DEI PADRI SOMASCHI A MESSINA ATTRAVERSO LA MODELLAZIONE DIGITALE
2016
Il contributo è dedicato all'analisi delle geometrie sottese al progetto della chiesa per i Padri Somaschi di Messina di Guarino Guarini, progetto non datato e mai realizzato, noto grazie alla pubblicazione all'intero del trattato Architettura Civile dell'architetto modenese. L'indagine si avvale del processo di ricostruzione digitale della chiesa, che ha consentito un approfondimento delle geometrie che informano ogni singolo elemento dell'architettura, nonché del constante confronto con le opere esistenti d Guarini, in particolar modo la chiesa di San Lorenzo e la cappella del SS. Sudario di Torino.
Testicular tumors in childhood: a national report
1993
The authors report preliminary data of an Italian multicentric, retrospective study of primary testicular tumors (PTT) in childhood involving 20 Italian departments of pediatric surgery. Forty cases of PTT were observed during a 10-year period (1977–1987), with yolk-sac tumors being the most frequent (45%). Most testicular tumors were first perceived as a unilateral testicular mass. Scrotal ultrasonography represents the main diagnostic investigation, together with serum marker levels.