Search results for "aste"
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Selluloosajohdannaisten rakenteen ja substituutioasteen tutkiminen
2016
Nykyään ympäristöystävällisille, biohajoaville ja uusiutuvista luonnonvaroista valmistetuille tuotteille on suuri kysyntä. Tämän takia erilaiset selluloosan johdannaiset ovat kiinnostavia. Näistä karboksimetyyliselluloosa on eniten käytetty vesiliukoinen selluloosan eetteri. Tässä pro gradu -tutkielmassa käsiteltiin karboksimetyyliselluloosan selluloosarakenteen ja substituutioasteen tutkimuksessa hyödynnettäviä analyysimenetelmiä. Kromatografiset ja spektroskopiset menetelmät ovat tärkeimpiä selluloosarungon tutkimuksessa. Substituutioaste voidaan määrittää esimerkiksi perinteisillä titrausmenetelmillä. Substituutioastejakaumaa puolestaan voidaan tutkia nestekromatografisesti.
Forme della cucina siciliana. Esercizi di semiotica del gusto
2020
Sarde a beccafico, cuscus, minestra di tenerumi, caponata, pasta alla Norma, pasta con le sarde, involtini di carne, cassate e cannoli, fritture varie: ecco i più tipici piatti della tradizione gastonomica siciliana, stereotipi alimentari tanto amati sia dai turisti sia dai siciliani doc. Ma cosa rende così apprezzate queste pietanze? E, soprattutto, cosa fa sì che siano diventate fra le più rappresentative della cucina – e in generale della cultura – siciliana? Se la tradizione è un’innovazione riuscita, un’invenzione efficace, questo volume prova a spiegare, con gli strumenti della semiotica, attraverso quali dispositivi antropologici, discorsivi e testuali sia nata – e soprattutto si sia…
Le processus de choix alimentaire et ses déterminants : vers une prise en compte des caractéristiques psychologiques du consommateur
2006
This thesis aims to explore new research opportunities in the food field, proposing to explicitly include psychological factors as potential determinants of food choice process. It notes the consequences of the central role of pleasure in the mechanisms of ingestion, and the specific role of taste: the highly emotional nature of food consumption leads then to retain experiential approach and more specifically sensory marketing as a framework. The issue of research aims to investigate how sensory stimuli and the information associated with the product combine to influence, in a differentiated manner depending on the individual, consumption behavior.Methodologically, the research combines con…
Separation of palladium and silver from E-waste leachate : effect of nitric acid concentration on adsorption to Thiol scavenger
2022
The development of recovery techniques for metals present in low concentrations in E-waste, such as silver and palladium, is important from the aspect of the circular economy. Adsorption of palladium and silver was studied in detail in a batch process with silica-based Thiol scavenger from nitric acid leachate of waste printed circuit boards (PCBs). High adsorption efficiencies of Pd(II) and Ag(I), >97%, were reached in nitric acid concentrations below 3 mol L−1. At higher acid concentrations, adsorption efficiency of Ag(I) decreased drastically which enables the separation of Ag(I) and Pd(II) based on nitric acid concentration in sample solution. Pd(II) and Ag(I) followed pseudo 2nd order …
Developmental pathways of language development : a longitudinal predictive study from prelinguistic stage to outcome at school entry
2017
This research focused on the pathways of development during the prelinguistic stage and from prelinguistic development to later language ability. The first goal was to follow and describe the development of several prelinguistic communication skills during the first two years of life (Studies I and II). The second goal was to examine the predictive relations between this development and language ability and difficulties, as well as memory, up to school age (Studies I, II, and III). The third goal evaluated the feasibility of parental screening in identifying children at risk for language and communication difficulties (Studies I, II, and III). Prelinguistic skills were followed with a paren…
Velocity-based resistance training: do women need greater velocity loss to maximize adaptations?
2021
Abstract Purpose Men and women typically display different neuromuscular characteristics, force–velocity relationships, and differing strength deficit (upper vs. lower body). Thus, it is not clear how previous recommendations for training with velocity-loss resistance training based on data in men will apply to women. This study examined the inter-sex differences in neuromuscular adaptations using 20% and 40% velocity-loss protocols in back squat and bench press exercises. Methods The present study employed an 8-week intervention (2 × week) comparing 20% vs. 40% velocity-loss resistance training in the back squat and bench press exercises in young men and women (~ 26 years). Maximum strengt…
A 10-Week Block of Combined High-Intensity Endurance and Strength Training Produced Similar Changes in Dynamic Strength, Body Composition, and Serum …
2020
Purpose: To examine the potential sex differences in adaptations to combined endurance and strength training in recreationally endurance trained (eumenorrheic) women (n = 9) and men (n = 10). Methods: Isometric (ISOMmax) and dynamic bilateral leg press (1RM), countermovement jump (CMJ), running performance (3,000 m time trial), lean mass and body fat % (LEAN and FAT% determined by dual X-ray absorptiometry) as well as serum testosterone and cortisol (TES and COR, respectively, measured using hormone-specific immunoassay kits) were examined before a control period and pre, mid, and post a supervised 10-week combined high-intensity interval endurance training (4 × 4 min intervals and 3 × 3 × …
Beware of contagion!
2003
Landscape ecology starts from the assumption that diversity and spatial arrangement of ecosystem mosaics has ecological implications and tries to understand the interactions between diversity and structure of large spatially heterogeneous areas and its ecological functions. This approach implies effective use of earth observation techniques and geographic information systems, enabling a global view of the landscape mosaics. Consequently, a large number of indices has been used to quantify the structure of categorical maps as a surrogate of actual landscapes and correlate them to ecological processes. In particular, the entropy-based contagion index has been extensively used to summarize the…