Search results for "Veterinary Science"
showing 10 items of 2359 documents
Becoming a beer expert: is simple exposure with feedback sufficient to learn beer categories?
2015
Category learning is an important aspect of expertise development which had been little studied in the chemosensory field. The wine literature suggests that through repeated exposure to wines, sensory information is stored by experts as prototypes. The goal of this study was to further explore this issue using beers. We tested the ability of beer consumers to correctly categorize beers from two different categories (top- and bottom-fermented beers) before and after repeated exposure with feedback to beers from these categories. We found that participants learned to identify the category membership of beers to which they have been exposed but were unable to generalize their learning to other…
Learning to learn: Theta oscillations predict new learning, which enhances related learning and neurogenesis
2011
Animals in the natural world continuously encounter learning experiences of varying degrees of novelty. New neurons in the hippocampus are especially responsive to learning associations between novel events and more cells survive if a novel and challenging task is learned. One might wonder whether new neurons would be rescued from death upon each new learning experience or whether there is an internal control system that limits the number of cells that are retained as a function of learning. In this experiment, it was hypothesized that learning a task that was similar in content to one already learned previously would not increase cell survival. We further hypothesized that in situations in…
Comparison of N-terminal proB-type natriuretic peptide levels at different stages of visceral leishmaniosis and in patients with chronic kidney disea…
2018
N-terminal proB-type natriuretic peptide (NT-proBNP) may be a useful marker in canine leishmaniosis (CanL). The aim was to compare NT-proBNP in dogs at different LeishVet stages of CanL and with idiopathic chronic kidney disease (CKD). Dogs diagnosed with CanL or CKD and a group of healthy dogs were included (group A, five normal dogs; group B, six dogs LeishVet 1-2; group C, 13 dogs LeishVet 3-4; group D, six dogs with CKD). NT-proBNP was higher (P0.001) in group C (7.616 pmol/l, interquartile range (IQR) 3537-10,000 pmol/l) than in group A (293 pmol/l, IQR 257-373), group B (388.5 pmol/l, IQR 324-793) and group D (740 pmol/l, IQR 557-962 pmol/l). International Renal Interest Society (IRIS…
Sperm kinematic characterization of alpaca ( Vicugna pacos L.) during the reproductive season
2018
Semen analysis is a key factor when determining the fertility ability in males. South American camelids, and in particular the alpaca, have been studied very little when compared with other farm animals. The aim of this work was to perform the kinematic characterization of alpaca spermatozoa collected directly from the deferent duct by using CASA-Mot (Computer Assisted Semen Analysis for Motility) technology. Samples were obtained every three days throughout the reproductive season during two periods and with a break of seven days in the middle. During both periods, the quality of the sample's motility and kinematics increased over the first two days and then subsequently decreased. This pa…
Puma (Puma concolor) epididymal sperm morphometry
2016
The Andean puma (Puma concolor) has not been widely studied, particularly in reference to its semen characteristics. The aim of the present study was to define the morphometry of puma sperm heads and classify their subpopulations by cluster analysis. Samples were recovered postmortem from two epididymides from one animal and prepared for morphological observation after staining with the Hemacolor kit. Morphometric data were obtained from 581 spermatozoa using a CASA-Morph system, rendering 13 morphometric parameters. The principal component (PC) analysis was performed followed by cluster analysis for the establishment of subpopulations. Two PC components were obtained, the first related to …
A sustainable phenolic compound extraction system from olive oil mill wastewater
2017
Abstract The reduction of environmental impact and the achievement of economic advantages based on by-product recovery is the aim of applying methodologies for phenolic compounds extraction from Olive Oil Mill Wastewater. Volume reduction of Olive Oil Mill Wastewater could generate important advantages in terms of waste disposal cost abatement and, in addition, reuse in the production of foods with health properties could lead to economic benefits. Despite the fact that literature shows that several techniques have been developed, few economic approaches have been presented. This paper assesses the economic feasibility of a system based on membrane filtration and reverse osmosis processes f…
Consumer awareness and acceptance of irradiated foods: the case of Italian consumers
2019
Purpose The purpose of this paper is to investigate consumers’ willingness to accept irradiated food and the major factors related both to socio-demographic characteristics and to the perceived risk of consumers about the assumption of foods treated with novel technologies and irradiation, in particular, affecting their behavior. Consumers’ need for information has been investigated. Design/methodology/approach An online survey, involving 392 consumers living in Italy, was carried out to respond to the aim of the study. A Probit model was performed in order to identify major factors affecting the probability to accept food treated with ionizing radiation. Findings Findings show that the ac…
Perception of mixtures of odorants and tastants: sensory and analytical points of view
2017
Perception of mixtures of odorants and tastants: sensory and analytical points of view
Soils with Specific Features
2016
This chapter deals with some specific features of soil that are relevant for interpretation of infiltration experiments. Infiltration in water repellent soils is first examined. After summarizing the causes of hydrophobicity, phenomena associated to infiltration in water repellent soil, including reduced infiltration rates and irregular wetting front advance, are illustrated. The Water Drop Penetration Time (WDPT), the Molarity of an Ethanol Droplet (MED) and the Repellency tests for quantitative assessment of soil water repellency are presented. Particular attention is given to estimation of subcritical soil water repellency by means of soil sorptivity measurements conducted with infiltrat…
Creep–recovery and oscillatory rheology of flour-based systems
2023
The chapter reviews the application of creep-recovery and oscillatory rheological tests in flour based systems, including simple flour water systems, and more complex ones, such as bread, cookies and biscuits. A theoretical introduction about the fundaments and methods of linear viscoelastic rheology is presented, including general mathematical models and their application in flour based systems. A summary of experimental conditions to perform the rheological tests is covered. Functionality of flour based systems is extremely dependent on their viscoelastic properties. Processes like mixing, pumping, lamination, baking performance have been found to be strongly dependent on the system visco…