Search results for " cra"

Physicochemical properties, sugar profile, and non-starch polysaccharides characterization of old wheat malt landraces

2021

Abstract Craft beers produced by small breweries are becoming increasingly popular worldwide due to their unique composition, taste, and flavour. Wheat malt is a traditional brewing raw material with great potential to improve beer properties such as mouthfeel, foam, haze, and flavour. In this study, the malting quality of eight wheat varieties (four common and four durum) was evaluated to explore the feasibility of producing 100 % wheat malt beer from old landraces. The physicochemical characteristics such as friability, Kolbach index, viscosity, and colour, of the wheat malts indicated a better degree of modification in the common wheat varieties when compared to that of the durum wheat v…

Micro and Macro Resilience Measures of an Economic Crisis

2020

Using Italian Households Budget Survey data over the period 1997-2013, a Cragg model in a life-cycle context is specified to compare the consumption behaviour in the pre- and post-crisis time and develop different micro and macro measures of resilience against crisis shocks. Cohort profiles for participation in and for consumption of tourism services in the pre- and post-crisis time are determined so as to explore the households’ resilience by generations. Next, the households’ resilience according to socio-demographic characteristics is addressed. As for the macro-resilience, combining individual expenditure elasticity, we examine whether and how Italian regions have responded to the recen…

Reclaimed asphalt binders and mortars fatigue behaviour

2017

Fatigue cracking is one of the most important failure mechanisms occurring in asphalt pavements, especially when mixtures incorporate considerable amount of rReclaimed asphalt pavement (RAP). In fact, aged binders contained in RAP generally make asphalt more brittle and specifically reduce fatigue resistance of the resulting asphalt mixtures. Binders and mortars play a key role in this phenomenon, considering fatigue cracking usually starts within these asphalt components. However, performance-related tests and specifications commonly regard binders and there are no sound methodologies allowing the use of mortars to predicting fatigue performance of asphalts containing RAP. For this reason,…

Automatic crack detection results using a novel device for survey and analysis of road pavement condition

2019

To accurately schedule maintenance operations, it is crucial to monitor the pavement state and, thus, evaluate the structural and functional indices during its entire service life. In particular, surface conditions (cracks, potholes, patches, rutting, etc.) must be properly checked – especially in terms of detection, identification, and classification of distresses – for avoiding reaching dangerous values for users (overpassing safety thresholds). However, monitoring and survey activities can be so costly (not only in economic terms, but further considering the execution time) to discourage their execution, with evident drawbacks for a proper maintenance management and the related intervent…

Halogen activation in the plume of Masaya volcano: field observations and box model investigations

2020

Volcanic emissions are a source of halogens in the atmosphere. Rapid reactions convert the initially emitted hydrogen halides (HCl, HBr, and HI) into reactive species such as BrO, Br2, BrCl, ClO, OClO, and IO. The activation reaction mechanisms in the plume consume ozone (O3), which is entrained by ambient air that is mixed into the plume. In this study, we present observations of the oxidation of bromine, chlorine, and iodine during the first 11 min following emission, examining the plume from Santiago crater of the Masaya volcano in Nicaragua. Two field campaigns were conducted: one in July 2016 and one in September 2016. The sum of the reactive species of each halogen was determined by g…

Heritage-making: Written Texts in the Transmission of Traditional Knowledge of Natural Dyeing

2022

Natural dyeing is an element of intangible cultural heritage which is gaining new relevance today. Heritage-making as a set of purposeful activities has become an object of interest for researchers relatively recently, and this study is reflective of that. The paper aims to focus on natural dyeing as a component of cultural heritage, its documentation process, and how written texts have influenced the living tradition of natural dyeing. One of the sources for the study was ethnographic material, which provides insight into the little researched tradition of natural dyeing. To understand how the tradition was described and explained, Latvian press publications on natural dyeing were evaluate…

Neuroimagen y adicción I: Correlatos neuroanatómicos y funcionales de la administración aguda, el craving y el consumo crónico de psicoestimulantes

2007

En los últimos años ha aumentado el interés por el estudio de los correlatos neurobiológicos del consumo de drogas psicoestimulantes, como la cocaína o el éxtasis. La aplicación de las técnicas de neuroimagen ha permitido examinar in vivo los efectos agudos de la administración de estas sustancias, los correlatos cerebrales del deseo intenso por consumirlas (craving), o las alteraciones funcionales o morfológicas asociadas al consumo crónico. Los objetivos de esta revisión son: (1) explicar brevemente las técnicas de neuroimagen utilizadas en la investigación de drogodependencias (2) presentar los hallazgos más actualizados de neuroimagen en el estudio de los correlatos cerebrales del consu…

Neuroimagen y adicción II: Correlatos neuroanatómicos y funcionales de la administración aguda, el craving y el consumo crónico de opiáceos, alcohol …

2008

En las últimas décadas las técnicas de neuroimagen han contribuido en gran medida al estudio in vivo de los efectos neurobiológicos del consumo agudo y crónico de sustancias de abuso. El incremento en los últimos años del consumo de alcohol y cannabis, así como las graves consecuencias asociadas al consumo de opiáceos han contribuido al aumento del interés por estudiar los efectos de estas sustancias en el sistema nervioso central. Los objetivos de esta revisión son: (1) presentar los hallazgos más actualizados de neuroimagen en el estudio de los correlatos cerebrales del consumo de opiáceos, alcohol y cannabis, teniendo en cuenta: (i) la administración aguda de estas sustancias, (ii) el cr…

Vaccinium macrocarpon (Cranberry)-Based Dietary Supplements: Variation in Mass Uniformity, Proanthocyanidin Dosage and Anthocyanin Profile Demonstrat…

2020

Vaccinium macrocarpon (syn. American Cranberry) is employed in dietary supplements (DS) with the aim to improve urinary tract well-being. This property is linked to the antiadhesion-activity of proanthocyanidins (PACs) against uropathogenic-bacteria. However, the current European legislation has been criticized for being weak and ineffective. Indeed, recent scientific works report mislabeled, contaminated, and adulterated supplements containing dangerous or unknown compounds, or sold at toxic doses. In this work, we analysed 24 DS that claim to contain cranberry, and to have a specific dosage of PACs. Our tests included the control of the good manufacturing practice according to the Europea…

2014

In this paper mathematical modeling of a vehicle crash test based on a single-mass is studied. The model under consideration consists of a single-mass coupled with a spring and/or a damper. The parameters for the spring and damper are obtained by analyzing the measured acceleration in the center of gravity of the vehicle during a crash. A model with a nonlinear spring and damper is also proposed and the parameters will be optimized with different damper and spring characteristics and optimization algorithms. The optimization algorithms used are interior-point and firefly algorithm. The objective of this paper is to compare different methods used to establish a simple model of a car crash an…