Some haematochemical parameters of intensively farmed rainbow trout (Oncorhynchus mykiss)

The aim of the present study was a preliminary determination of the metabolic profile (MP) of one of the most economically valuable species on the Italian market. Defining the metabolic profile (MP) of a species is not easy because of many factors affecting the blood parameters, but assessing the normality values is necessary to identify the limits out of which a production or reproduction decrease can happen

Contribution to the definition of the metabolic profile of farmed rainbow trout (Oncorhynchus mykiss)

The haematic outline of 339 rainbow trout (Oncorhynchus mykiss)from two different farms in the Lucca province was studied for a preliminary assessment of the metabolic profile of this species and for the investigation of the influence of some endogenous and exogenous factors on the variability of the studied parameters. The sampling time, as well as the weight, appears to have caused significant variations on most of the parameters analysed. The present study gives the annual means and the seasonal trends for each farm where the study was carried out

First haematic results for the sea bass (Dicentrarchus labrax) metabolic profile assessment

The assessment of blood reference ranges of farmed fish can be extremely useful in improving production and productquality. A first attempt to establish the normality ranges for the most important haematochemical parameters of farmedsea bass was carried out by analysing the trend of Haematocrit, Glucose, Total Protein, Albumin, Globulin, TotalCholesterol and some electrolytes in 353 sea bass farmed with two different farming systems within 1 year. A strong seasonaleffect was found with regard to each parameter; the role of some environmental conditions was evaluated; andsome reference ranges were proposed for the culturing methods considered

Infrared evidence of a Slater metal-insulator transition in NaOsO3

The magnetically driven metal-insulator transition (MIT) was predicted by Slater in the fifties. Here a long-range antiferromagnetic (AF) order can open up a gap at the Brillouin electronic band boundary regardless of the Coulomb repulsion magnitude. However, while many low-dimensional organic conductors display evidence for an AF driven MIT, in three-dimensional (3D) systems the Slater MIT still remains elusive. We employ terahertz and infrared spectroscopy to investigate the MIT in the NaOsO3 3D antiferromagnet. From the optical conductivity analysis we find evidence for a continuous opening of the energy gap, whose temperature dependence can be well described in terms of a second order phase transition. The comparison between the experimental Drude spectral weight and the one calculated through Local Density Approximation (LDA) shows that electronic correlations play a limited role in the MIT. All the experimental evidence demonstrates that NaOsO3 is the first known 3D Slater insulator.Comment: 4 figure

Physico-Chemical Traits of Raw and Cooked Fillets of Rainbow Trout (Oncorhynchus Mykiss) from Different Strains and Farms

Fillets and cooking yields, water holding capacity, textural properties, colour, proximate composition, collagen and fatty acids of five strains (IT1, IT2, IT3, USA, UK) of rainbow trout, Oncorhynchus mykiss, reared in three farms (F1, F2, F3), were measured before and after cooking. Physico-chemical parameters of the strains greatly differed both in raw and cooked state. IT2 and USA recorded the highest yields. IT2 distinguished from the other strains, showing lowest values of hardness, chewiness, gumminess and springiness. It also had brighter and less pigmented flesh with low fat, mainly in the raw state. USA strain showed the most valuable traits in terms of texture and colour, and had higher fat and collagen content in flesh. The physico-chemical profile of each strain was differently modified by cooking. USA strain maintained a positive texture and colour profile after cooking and its quality was the best

Las trabajadoras de la economía popular: a propósito de la experiencia de las mujeres en la CTEP

El objetivo de la investigación en la que se inscribe esta reflexión es comparar y problematizar los esfuerzos formativos de movimientos populares urbanos de diferente matriz político-ideológica en el AMBA. El interés específico por el estudio de la formación es parte de un interés mayor vinculado con el análisis de los procesos de construcción social de sentidos que legitiman e incitan a la acción colectiva en movimientos populares urbanos de diferente matriz político ideológica, entendiendo que el estudio de esos “procesos enmarcadores” (Snow, 1986) puede aportar a la inteligibilidad de las complejas y dinámicas reconfiguraciones político-ideológicas de la acción colectiva. Se trata de un análisis inscripto en la tradición de los estudios constructivistas de los movimientos sociales (Laraña, 1999), preocupados por los procesos colectivos de interpretación, atribución y construcción social del sentido, asumiendo la existencia de una relación dinámica entre estos procesos, las oportunidades políticas y la dinámica organizacional de los movimientos sociales; y una necesaria complementariedad entre la teoría de los movimientos sociales y la teoría de clases para su estudio (Bruno y Palumbo, 2016).Facultad de Periodismo y Comunicación Socia

Multidimensional evaluation of performance with experimental application of balanced scorecard: a two year experience

<p>Abstract</p> <p>Background</p> <p>In today's dynamic health-care system, organizations such as hospitals are required to improve their performance for multiple stakeholders and deliver an integrated care that means to work effectively, be innovative and organize efficiently. Achieved goals and levels of quality can be successfully measured by a multidimensional approach like Balanced Scorecard (BSC). The aim of the study was to verify the opportunity to introduce BSC framework to measure performance in St. Anna University Hospital of Ferrara, applying it to the Clinical Laboratory Operative Unit in order to compare over time performance results and achievements of assigned targets.</p> <p>Methods</p> <p>In the first experience with BSC we distinguished four perspectives, according to Kaplan and Norton, identified Key Performance Areas and Key Performance Indicators, set standards and weights for each objective, collected data for all indicators, recognized cause-and-effect relationships in a strategic map. One year later we proceeded with the next data collection and analysed the preservation of framework aptitude to measure Operative Unit performance. In addition, we verified the ability to underline links between strategic actions belonging to different perspectives in producing outcomes changes.</p> <p>Results</p> <p>The BSC was found to be effective for underlining existing problems and identifying opportunities for improvements. The BSC also revealed the specific perspective contribution to overall performance enhancement. After time results comparison was possible depending on the selection of feasible and appropriate key performance indicators, which was occasionally limited by data collection problems.</p> <p>Conclusions</p> <p>The first use of BSC to compare performance at Operative Unit level, in course of time, suggested this framework can be successfully adopted for results measuring and revealing effective health factors, allowing health-care quality improvements.</p

Interband characterization and electronic transport control of nanoscaled GeTe/Sb2_2Te3_3 superlattices

The extraordinary electronic and optical properties of the crystal-to-amorphous transition in phase-change materials led to important developments in memory applications. A promising outlook is offered by nanoscaling such phase-change structures. Following this research line, we study the interband optical transmission spectra of nanoscaled GeTe/Sb$_2$Te$_3$ chalcogenide superlattice films. We determine, for films with varying stacking sequence and growth methods, the density and scattering time of the free electrons, and the characteristics of the valence-to-conduction transition. It is found that the free electron density decreases with increasing GeTe content, for sub-layer thickness below $\sim$3 nm. A simple band model analysis suggests that GeTe and Sb$_2$Te$_3$ layers mix, forming a standard GeSbTe alloy buffer layer. We show that it is possible to control the electronic transport properties of the films by properly choosing the deposition layer thickness and we derive a model for arbitrary film stacks

Macronutrient and fatty acid profiles of meagre (Argyrosomus regius) fillets as influenced by harvesting time and boiling

The effect of harvesting time and cooking on water, protein, lipid, ash and fatty acid content of farmed meagre was assessed. Significant differences in nutrient content of raw fillets were detected in relation to harvesting time. Cooking by boiling induced loss of some macronutrients, mainly lipids and some fatty acids. Retention of total lipids, C18:2n-6 and C18:3n-3 decreased significantly with harvesting time, while C20:5n-3 (EPA) and C22:6n-3 (DHA) were retained in the same quantity. DHA retention was higher than that of the other FAs considered, at all harvesting times. The changes detected did not diminish the nutritional value of the fish. Despite losses induced by cooking and the low fat content, typical of this species, 100 g of fillet ensured an intake of EPA plus DHA more than double the recommended daily intake (250 mg day–1), at all harvesting times. The ability to preserve nutrients is an essential requirement for quality maintenance and suggests the possibility of heat-processing fillets. </p

Preliminary approach on early post mortem stress and quality indexes changes in large size bluefin tuna (Thunnus thynnus)

Bluefin tuna (Thunnus thynnus) is very appreciated on Japan and USA market for the preparation of sushi and sahimi. The market price of the fresh product can vary from 8 to 33 Euro/kg (gate farm/producers prices) according to size, shape, fat level, meat colour, consistency and freshness (absence of "hyake"), all parameters strictly connected to feeding quality and quantity, rearing and killing stress factors and refrigeration times and conditions after death. Excessive levels of stress during the slaughtering can affect meat quality, contributing to significantly decrease of tuna's price. The present trial was carried out to evaluate the possible harvesting/slaughtering stress effect on reared bluefin tuna meat quality, starting from the examination of the most important stress and quality parameters changes during the early post mortem period