Aplicación de enzimas como auxiliares en tintura de lana

Il s’agit d’une étude comparée sur l’action de trois enzymes ajoutées au bain de teinture comme adjuvants. Nous avons déterminé les absorptions de colorant, les différences de couleur entre les laines teintées avec et sans enzymes et la bonne tenue de la couleur. L’action des trois enzymes augmente l’absorption de colorant et semble également améliorer sa diffusion à l’intérieur de la fibre. L’emploi d’enzymes dans la teinture de la laine permet de teindre à des températures plus basses.Este trabajo es un estudio comparativo de la acción de tres enzimas cuando se añaden al baño de tintura como auxiliares. Se han determinado las absorciones de colorante, las diferencias de color entre lana teñida con y sin presencia de enzimas y las solideces del color. La acción de los tres enzimas incrementa la absorción de colorante y parece que a la vez mejora la difusión hacia el interior de la fibra. El uso de enzimas en la tintura de lana ofrece la posibilidad de teñir a temperaturas más bajas.The action of three enzymes has been comparatively studied when used as auxiliary agents in dyebath. The absorption rate of the dye, the colour differences between wool dyed with and without enzymes and the colour fastness were determined. The action of enzymes consists of increasing dye absorption and also seems to produce a better diffusion of the dye into the fibre. The use of the enzymes in wool dyeing offers the possibility of dyeing under mild temperature conditions

Protocolo informatizado de exploración funcional del sistema estomatognático

Al realizar un protocolo es necesario que todos los miembros del equipo que vayan a realizar el trabajo de recogida de datos tengan la misma unidad de criterios respecto a las distintas variables que lo integran. La redacción de este documento es tanto o más necesario que el propio protocolo

Erupció de la dentició permanent en un grup de 1.123 nens i nenes catalans

Fonament. Els estudis que tracten de l'erupció de les dents permanents estan confeccionats per a països amb un clima, una alimentació, uns hàbits i uns mitjans de vida molt diferents als nostres. Objectiu. Determinar les edats mitjanes de l'erupció de la dentició permanent de la nostra mostra de població. Mètode. S'han estudiat 605 nens i 518 nenes de raça blanca i amb edats compreses entre els 5 i els 14 anys, tots residents a la població de Tona (Osona). Les exploracions es van dur a terme a les tres escoles que hi ha a la població seguint el mètode transversal. Les dades recollides van ser les següents: nom i cognoms de l'infant explorat, data de naixement, sexe, pes, estatura i odontograma de dentició permanent. Les estimacions de les mitjanes d'edat d'erupció de cada dent es van calcular mitjançant el mètode de Kärber. Resultats. Després de validar la mostra quant a mida, edat, pes i estatura, vam confirmar que ens trobàvem davant un grup homogeni i semblant a la resta d'infants catalans. Presentem les taules de les edats mitjanes d'erupció per a cada una de les dents permanents en els dos maxillars, per a tots dos sexes. Conclusions. Les dades de pes i estatura de la mostra estudiada no presenten diferències significatives amb les que va aportar De la Puente. S'han confeccionat les taules, per primera vegada, de les edats d'erupció de totes les dents permanents (exceptuant les terceres molars permanents) per a una mostra de nens i nenes catalans

Cronología de la erupción de la dentición permanente en la población española

Se realizó un estudio sobre cronología de la erupción de la dentición permanente en un grupo de 1.123 niños, de edades comprendidas entre 5 y 15 años, residentes en la población de Tona, provincia de Barcelona. La muestra fue validada en cuanto a tamaño, edad, peso y talla, y puede considerarse representativa de la población española. Se presentan las tablas y secuencias eruptivas para ambos sexos

Mahara com a suport electrònic del portafoli de competències de l’FOOT

A l’EUOOT hem implantat un sistema de seguiment i avaluació de les competències que implica la realització d’un portafoli de competències per part dels estudiants. En primera instància el format del portafoli no està definit, però l’opció d’un portafoli electrònic sembla ser la millor opció de futur i la que els estudiants ens demanen. Hem “testejat” Mahara i l’hem valorat com una bona eina electrònica de suport al portafoli dels estudiants. També hem elaborat una petita plantilla per facilitar als estudiants el començar amb els seu portafoli. A partir d’ara, els estudiants començaran a elaborar els seus portafolis a la plataforma.Peer Reviewe

Anti-inflammatory activity in selected Antarctic benthic organisms

Antarctic benthos was prospected in search for anti-inflammatory activity in polar benthic invertebrates, in two different geographical areas: deep-bottoms of the Eastern Weddell Sea and shallow-waters of the South Shetland Islands. A total of 36 benthic algae and invertebrate species were selected to perform solubility tests in order to obtain extracts that were soluble at an innocuous ethanol concentration (0.2%) for cell culture, and further test them for anti-inflammatory activity. From these, ethanol extracts of ten species from five different phyla resulted suitable to be studied in cell macrophage cultures (RAW 264.7). Cytotoxicity (MTT method) and production of inflammatory mediators (prostaglandin E2, leukotriene B4, interleukin-1β) were determined at three extract concentrations (50, 125, 250 μg/mL). Bioassays resulted in four different species showing anti-inflammatory activity corresponding to three sponges: Mycale (Oxymycale) acerata, Isodictya erinacea, and I. toxophila; and one hemichordate: Cephalodiscus sp. These results show that Antarctic sessile invertebrates may have great value as a source of lead compounds with potential pharmaceutical applications

Exploring de association between feeding habits, non-nutritive sucking habits, and malocclusions in the deciduous dentition

Background: This study aimed to explore the association between feeding habits, non-nutritive sucking habits, and malocclusions in deciduous dentition. Methods: A cross-sectional observational survey was carried out in 275 children aged 3 to 6 years and included clinical evaluations of malocclusions and structured interviews. Statistical significance for the association between feeding habits and the development of malocclusion was determined using chi-square and Fisher's exact tests. In addition, odds ratio (OR) calculations were used for intergroup comparisons. Controlling for confounders was adjusted by excluding children with non-nutritive sucking habits. Results: The results indicated that there were no significant relationships between exclusive breastfeeding or bottlefeeding and the presence of any type of malocclusion (p>0.05). There was also no significant association between breastfeeding or bottlefeeding duration and malocclusion (p>0.05). In addition, it was observed that exclusive breastfeeding had a protective effect and diminished the risk of acquiring non-nutritive sucking habits (p=0.001). Conclusions: There was no association between feeding habits and malocclusions in the deciduous dentition in this sample of children. Exclusive breastfeeding reduced the risk of acquiring non-nutritive sucking habits

Alfabetización mediática y co-innovación en la microempresa: primeras evidencias para España

Media literacy and co-innovation in microenterprises: first evidence in Spain.- The inexorable progress of ICT has brought about radical changes in the social and business world. In this context, new pat-terns of communication and participation, especially since the advent of Web 2.0, and the widespread use of smartphones by the whole population, are particularly striking. In this situation, it is essential to establish what kind of personal skills related to the efficient use of media can be useful from a business perspective, and how these media literacy skills can be aligned with other factors, such as innovation, that determine the competitiveness of companies. In this paper, we analyze the media skills of workers and their connections to the innovation processes in microenterprises. With this analytical objective, exploratory fieldwork has been done in a sample of 154 professionals working in Spanish microenterprises

Sobre la zarza del Pare Pere (Rubus, Rosaceae)

El relato del "Miracle de l'esbarzer" del Pou del Pare Pere, cuenta como este franciscano hizo desaparecer las espinas de una zarza que crecía alrededor del Pozo de Jesús Pobre (Xàbia, Alicante, España) al cual fue a coger agua y en la que se pinchó. Esta zarza inerme es desde entonces conocida y apreciada en esta localidad, así como en los pueblos vecinos, donde es cultivada como ornamental. La zarza del Pare Pere pertenece a una forma inerme (sin espinas) de Rubus ulmifolius. Esta planta ya era conocida y fue nombrada antes de que fuera publicado el propio R. ulmifolius, lo que provoca una inestabilidad nomenclatural cuyo problema debe ser abordado. El origen, la identificación taxonómica, así como la relación que tiene con otras especies del género de las zarzas o zarzamoras (Rubus subg. Rubus) se aborda en este estudio

Lesion Index Titration Using Contact-Force Technology Enables Safe and Effective Radiofrequency Lesion Creation at the Root of the Aorta and Pulmonary Artery

BACKGROUND: Ablation of some myocardial substrates requires catheter-based radiofrequency delivery at the root of a great artery. We studied the safety and efficacy parameters associated with catheter-based radiofrequency delivery at the root of the aorta and pulmonary artery. METHODS: Thirty-six pigs underwent in-vivo catheter-based ablation under continuous contact-force and lesion index (power, contact-force, and time) monitoring during 60-s radiofrequency delivery with an open-irrigated tip catheter. Twenty-eight animals were allocated to groups receiving 40 W (n=9), 50 W (n=10), or 60 W (n=9) radiofrequency energy, and acute (n=22) and chronic (n=6) arterial wall damage was quantified by multiphoton microscopy in ex vivo samples. Adjacent myocardial lesions were quantified in parallel samples. The remaining 8 pigs were used to validate safety and efficacy parameters. RESULTS: Acute collagen and elastin alterations were significantly associated with radiofrequency power, although chronic assessment revealed vascular wall recovery in lesions without steam pop. The main parameters associated with steam pops were median peak temperature >42°C and impedance falls >23 ohms. Unlike other parameters, lesion index values of 9.1 units (interquartile range, 8.7-9.8) were associated with the presence of adjacent myocardial lesions in both univariate ( P=0.03) and multivariate analyses ( P=0.049; odds ratio, 1.99; 95% CI, 1.02-3.98). In the validation group, lesion index values using 40 W over a range of contact-forces correlated with the size of radiofrequency lesions (R2=0.57; P=0.03), with no angiographic or histopathologic signs of coronary artery damage. CONCLUSIONS: Lesion index values obtained during 40 W radiofrequency applications reliably monitor safe and effective lesion creation at the root of the great arteries.This study was supported by the Fundación Interhospitalaria para la Investigación Cardiovascular (FIC) and the Heart Rhythm Section of the Spanish Society of Cardiology. The Centro Nacional de Investigaciones Cardiovasculares (CNIC) is supported by the Ministry of Science, Innovation and Universities and the Pro CNIC Foundation. The CNIC is a Severo Ochoa Center of Excellence (SEV-2015- 0505). This study was supported by grants from Fondo Europeo de Desarrollo Regional (CB16/11/00458) and the Spanish Ministry of Science, Innovation and Universities (SAF2016-80324-R).S