Analysis of the length weight relationships for the western Atlantic bluefin tuna, Thunnus thynnus (L.)

This is an Accepted Manuscript of an article published by Taylor & Francis in Reviews in fisheries science & aquaculture on 2016, available online: http://wwww.tandfonline.com/10.1080/23308249.2015.1112359The recently adopted model by ICCAT Standing Committee on Research and Statistics (SCRS) for the western Atlantic bluefin tuna (ABFT), Thunnus thynnus (L.) (RW D 0.0000159137 SFL3.020584, WEST), together with the model used to date (RW D 0.0000152 SFL3.0531, Ec 1) is analyzed in using a bivariant sample (SFL (cm), RW (kg)) of 698 pairs of data (K D 2.02 § 0.23 SD) in order to validate them and to establish the model that fits best the reality represented by the sample and, therefore, will have the greatest descriptive and predictive power. The result of the analysis indicates that the adopted model WEST clearly underestimates the weight of pawning ABFT being model Ec 1 that best explains the data of the sample. The result of the classical statistical analysis is confirmed by means of the quantile regression technique, selecting the quantiles 5%, 25%, 50%, 75%, and 95%. Other biological and fisheries indicators also conclude that the model WEST gradually underestimates the weight of ABFT spawners (of 2 3 m) by 11 13%, does not meet the criterion that for RW = 725 kg (Wmax), SFL = 319.93 +- 11.3 cm (Lmax), and the average value of K (1.77) obtained for a wide range of size weight values, using WEST model, represents ABFT in low fattening condition.Cort, JL.; Estruch Fuster, VD. (2016). Analysis of the length weight relationships for the western Atlantic bluefin tuna, Thunnus thynnus (L.). Reviews in Fisheries Science & Aquaculture. 24(2):126-135. doi:10.1080/23308249.2015.1112359S126135242Aguado-Giménez, F., & García-García, B. (2005). Changes in some morphometric relationships in Atlantic bluefin tuna (Thunnus thynnus thynnus Linnaeus, 1758) as a result of fattening process. Aquaculture, 249(1-4), 303-309. doi:10.1016/j.aquaculture.2005.04.064Butler, M. J. A.Prince Edward Island bluefin tuna research program 1974. Summerside, PE: Prince Edward Island Marine Fisheries and Training Centre and Department of Tourism, Parks and Conservation, P.E.I, pp. 1–65 (1974).Caddy, J., C. A. Dickson, and J. A. Butler.Age and growth of giant bluefin tuna (Thunnus thynnus thynnus) taken in Canadian waters in 1975. Manuscript Report Series, 1395, St. Andrews, N. B.: Fisheries Research Canada, 17 p. (1976).Chapman, E. W., Jørgensen, C., & Lutcavage, M. E. (2011). Atlantic bluefin tuna (Thunnus thynnus): a state-dependent energy allocation model for growth, maturation, and reproductive investment. Canadian Journal of Fisheries and Aquatic Sciences, 68(11), 1934-1951. doi:10.1139/f2011-109Cort, J. L., Arregui, I., Estruch, V. D., & Deguara, S. (2014). Validation of the Growth Equation Applicable to the Eastern Atlantic Bluefin Tuna,Thunnus thynnus(L.), UsingLmax, Tag-Recapture, and First Dorsal Spine Analysis. Reviews in Fisheries Science & Aquaculture, 22(3), 239-255. doi:10.1080/23308249.2014.931173Cort, J. L., Deguara, S., Galaz, T., Mèlich, B., Artetxe, I., Arregi, I., … Idrissi, M. (2013). Determination ofLmaxfor Atlantic Bluefin Tuna,Thunnus thynnus(L.), from Meta-Analysis of Published and Available Biometric Data. Reviews in Fisheries Science, 21(2), 181-212. doi:10.1080/10641262.2013.793284Cort, J. L., Estruch, V. D., Neves Dos Santos, M., Di Natale, A., Abid, N., & de la Serna, J. M. (2015). On the Variability of the Length–Weight Relationship for Atlantic Bluefin Tuna,Thunnus thynnus(L.). Reviews in Fisheries Science & Aquaculture, 23(1), 23-38. doi:10.1080/23308249.2015.1008625Fraser, K.Possessed. World Record Holder for Bluefin Tuna. Kingstown, Nova Scotia: T & S Office Essentials and printing, 243 pp. (2008).Golet, W. J. Somatic condition, growth and distribution of Atlantic bluefin tuna (Thunnus thynnus) in the Gulf of Maine. Ph.D. Thesis, Durham: University of New Hampshire, 319 p. (2010).Koenker, R. (2005). Quantile Regression. doi:10.1017/cbo9780511754098Koenker, R., & Bassett, G. (1978). Regression Quantiles. Econometrica, 46(1), 33. doi:10.2307/1913643Mather, F. J. III, J. M. Jr Mason, and A. C. Jones. Historical document: life history and fisheries of Atlantic bluefin tuna. NOAA Technical Memorandum, NMFS-SEFSC-370, Miami, FL, 165 p. (1995).Perçin, F., & Akyol, O. (2009). Lengthâ weight and lengthâ length relationships of the bluefin tuna,Thunnus thynnusL., in the Turkish part of the eastern Mediterranean Sea. Journal of Applied Ichthyology, 25(6), 782-784. doi:10.1111/j.1439-0426.2009.01288.xPercin, F., & Akyol, O. (2010). Some Morphometric Relationships in Fattened Bluefin Tuna, Thunnus thynnus L., from the Turkish Aegean Sea. Journal of Animal and Veterinary Advances, 9(11), 1684-1688. doi:10.3923/javaa.2010.1684.1688Restrepo, V. R., Diaz, G. A., Walter, J. F., Neilson, J. D., Campana, S. E., Secor, D., & Wingate, R. L. (2010). Updated estimate of the growth curve of Western Atlantic bluefin tuna. Aquatic Living Resources, 23(4), 335-342. doi:10.1051/alr/2011004Rodriguez-Marin, E., Ortiz, M., Ortiz de Urbina, J. M., Quelle, P., Walter, J., Abid, N., … Zarrad, R. (2015). Atlantic Bluefin Tuna (Thunnus thynnus) Biometrics and Condition. PLOS ONE, 10(10), e0141478. doi:10.1371/journal.pone.014147

Prevalencia de anomalias dentomaxilares y necesidad de tratamiento ortodoncico en ninos de 12 anos de edad en colegios municipalizados de la Comuna de Talca 2007

68 p.Se realizó un estudio de tipo observacional descriptivo de prevalencia de anomalías dentomaxilares en la población de 12 años de los colegios municipalizados de la comuna de Talca, en el año 2007. El estudio consistió en un examen clínico, en colegios municipalizados de la ciudad de Talca. Para ser parte del estudio clínico se realizó autorización al los encargados de cada colegio, se les informó en que consistía el estudio y en caso de de encontrar cualquier información relevante se les informaría a los padres. Se examinaron clínicamente a 187 pacientes, y la información obtenida se traspaso a una ficha, el la cual se aplicaba el criterio de necesidad de tratamiento del DAI con el anexo de la relación molar y canina. Del total de pacientes, el 57% fueron de sexo masculino y el 43% fueron de sexo femenino. El resultado de este examen clínico para la necesidad de tratamiento fue que un 51,8% de la población total de 12 años presenta una anomalía dentoamaxilar con necesidad de tratamiento y un 48.2% presenta una oclusión normal o una maloclusión mínima sin necesidad de tratamiento. Dentro de las categorías del índice DAI, existe un 48,1% de población que no presenta maloclusión o presenta una maloclusión mínima, un 23,5% que presenta una maloclusión definitiva, un 12,8% que presenta una maloclusión severa y un 15,5% maloclusión discapacitante, no existiendo una diferencia significativa en las primeras 3 categorías, pero presentando un mayor porcentaje en el sexo masculino en la maloclusión discapacitante. En cuanto a la clasificación de Angle, se presentó un 52% de la población con Clase I y un 24% presentó con Clase II y Clase III, no se presentó una diferencia significativa entre el sexo masculino y el femenino en las 2 primeras clases, pero si se existe un mayor porcentaje de población clase III masculina (64,4%) en relación a la femenina (35,6%)

Evaluation of the Damper Condition in Synchronous Motors through the Analysis of the Transient Stray Fluxes and Currents considering the Effect of the Remanent Magnetism

(c) 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.[EN] This paper proposes the qualitative and quantitative analysis of stray-flux and current data under starting to detect damper faults in cylindrical rotor synchronous machines. These machines are typically employed in high power applications and their possible outages may imply huge costs for the industries or plants where they operate. The damper cage is a critical part of these machines and a potential source of catastrophic failures. However, few research works have provided feasible alternatives to monitor the condition of such element. This work analyses the viability of analyzing the electromotive force signals induced by the stray-flux in external coil sensors as well as current signals under starting to diagnose damper faults. The results obtained with laboratory machines with different levels of damper damage show that the analyses of those signals can provide very useful information for determining how the damper degrades over time. Moreover, the paper studies the effect of the remanent magnetism over the viability of the approaches and provides solutions to overcome this problem. The conclusions are valuable for field engineers since, nowadays, there are few available solutions that allow monitoring the condition of such element without motor disassembly.This work was supported in part by the Spanish "Ministerio de Ciencia Innovacion y Universidades" and in part by the FEDER program in the framework of the "Proyectos de I+D de Generacion de Conocimiento del Programa Estatal de Generacion de Conocimiento y Fortalecimiento Cientifico y Tecnologico del Sistema de I+D+i, Subprograma Estatal de Generacion de Conocimiento" (ref: PGC2018-095747-B-I00).Castro-Coronado, H.; Antonino-Daviu, JA.; Quijano-Lopez, A.; Llovera Segovia, P.; Fuster Roig, VL.; Serrano Iribarnegaray, L.; Dunai, L. (2021). Evaluation of the Damper Condition in Synchronous Motors through the Analysis of the Transient Stray Fluxes and Currents considering the Effect of the Remanent Magnetism. IEEE Transactions on Industry Applications. 57(5):4665-4674. https://doi.org/10.1109/TIA.2021.30894574665467457

Towards a classificatión of dendrogeomorphological evidences and their utility in flood hazard analysis

Se analizan los diferentes parámetros dendrogeomorfológicos válidos para la estimación de riesgo

Knowledge and Prior Use of HIV Self-Testing in Madrid and Barcelona among Men Who Have Sex with Men More than One Year after Its Legal Authorization in Spain

HIV self-testing (HIVST); Early diagnosis; Men who have sex with men (MSM)Autodiagnóstico del VIH (HIVST); Diagnóstico precoz; Hombres que tienen sexo con hombres (HSH)Autodiagnòstic del VIH (HIVST); Diagnòstic precoç; Homes que tenen sexe amb homes (HSH)This study assessed the knowledge and prior use of HIV self-testing in a sample of men who have sex with men (MSM) recruited in a sexual health clinic and two community-based testing sites in Madrid and Barcelona, >12 months after its legal authorization. Between March 2019 and December 2020, we recruited 2044 MSM. Participants completed a self-administered questionnaire while waiting to be tested for HIV and other STIs. We built two Poisson regression models to assess factors associated with prior knowledge and with use. Among those who had used self-testing in the past we assessed frequency of use and several aspects related to the last testing episode. The proportion of participants that knew about the existence of self-testing and had already used it was of 26.3% and 5.1% respectively. Both, knowledge and use were independently associated with being born in Spain or other western European countries, university education and more recent HIV testing. Additionally, knowledge was associated with older age, having a more favorable economic situation, and not living sexuality in total secrecy. Use was also associated with having received money in exchange for sex. Most (69.5%) reported having self-tested once, 64.8% had self-tested <12 months ago, 63.8% self-tested alone and 71.4% acquired the kit at a pharmacy over the counter. In spite of its authorization and becoming legally available, knowledge and use of HIV self-testing remain low among MSM attending sites specialized in the diagnosis of HIV and other STIs. When designing scale-up strategies, lower levels of knowledge and use in less favored subgroups of MSM need to be factored in.This study was supported by Delegación del Gobierno para el Plan Nacional sobre Drogas (2019I017) and Convocatoria del Plan de Consolidación de la Investigación del IMIENS (2021)

Multi-technical approach for the characterization of polychrome decorative surfaces at Spanish Mission Churches in Nueva Vizcaya (Chihuahua, Mexico)

An interdisciplinary and multi-institutional group of science and art conservation specialists has provided new insight into the painting materials used in the polychrome walls and wooden ceilings in four seventeenth century Spanish colonial churches of Nueva Vizcaya (Chihuahua, Mexico). A multi-analytical study of the decorative surfaces was performed in situ using spectroscopic approaches (XRF, FORS), False Colour Infrared Reflectography – IRFC, as well as micro sampling (ATR-FTIR, LM, GC/MS). A survey of natural resources and study (ATR-FTIR, LM) was carried out to elucidate the natural occurrence of a select number of materials in the surrounding areas of the churches. The present paper presents a multi-analytical study and characterization of green, red-orange and black colour pigments and binders selected from the decorative surfaces. The aim of this study is to highlight relationships between local materials and those from the original polychrome ceilings, in order to understand the material and technological influences that converged in the Spanish colonial architecture of northern Mexico

Accurate quantification of atherosclerotic plaque volume by 3D vascular ultrasound using the volumetric linear array method.

Direct quantification of atherosclerotic plaque volume by three-dimensional vascular ultrasound (3DVUS) is more reproducible than 2DUS-based three-dimensional (2D/3D) techniques that generate pseudo-3D volumes from summed 2D plaque areas; however, its accuracy has not been reported. We aimed to determine 3DVUS accuracy for plaque volume measurement with special emphasis on small plaques (a hallmark of early atherosclerosis). The in vitro study consisted of nine phantoms of different volumes (small and medium-large) embedded at variable distances from the surface (superficial vs. >5 cm-depth) and comparison of 3DVUS data generated using a novel volumetric-linear array method with the real phantom volumes. The in vivo study was undertaken in a rabbit model of atherosclerosis in which 3DVUS and 2D/3D volume measurements were correlated against gold-standard histological measurements. In the in vitro setting, there was a strong correlation between 3DVUS measures and real phantom volume both for small (3.0-64.5 mm(3) size) and medium-large (91.1-965.5 mm(3) size) phantoms embedded superficially, with intraclass correlation coefficients (ICC) of 0.99 and 0.98, respectively; conversely, when phantoms were placed at >5 cm, the correlation was only moderate (ICC = 0.67). In the in vivo setting there was strong correlation between 3DVUS-measured plaque volumes and the histological gold-standard (ICC = 0.99 [4.02-92.5 mm(3) size]). Conversely, the correlation between 2D/3D values and the histological gold standard (sum of plaque areas) was weaker (ICC = 0.87 [49-520 mm(2) size]), with large dispersion of the differences between measurements in Bland-Altman plots (mean error, 79.2 mm(2)). 3DVUS using the volumetric-linear array method accurately measures plaque volumes, including those of small plaques. Measurements are more accurate for superficial arterial territories than for deep territories.S

Additives Type Schiff’s Base as Modifiers of the Optical Response in Holographic Polymer-Dispersed Liquid Crystals

Schiff’s bases with specific π-electron system have been synthesized and used as additives in holographic polymer-dispersed liquid crystals. It was observed that these substances modify different parameters such as current intensity, voltage, and diffracted light intensity. In addition, the maximum diffraction efficiency obtained in the reconstruction of the holograms is related to the additive molecule. We propose a relationship between this behavior and the molecular structure of these substances.This work was supported by “Ministerio de Economía, Industria y Competitividad”, Spain, projects: FIS2015-66570-P, FIS2014-56100-C2-1-P, “Generalitat Valenciana”, Spain, project: PROMETEOII/2015/015 and “Agencia de Ciencia y Tecnología de la Región de Murcia”, Spain, projects: 19278/PI/14, CTQ2015-67927-R

COPD Clinical Control : predictors and long-term follow-up of the CHAIN cohort

Control in COPD is a dynamic concept that can reflect changes in patients' clinical status that may have prognostic implications, but there is no information about changes in control status and its long-term consequences. We classified 798 patients with COPD from the CHAIN cohort as controlled/uncontrolled at baseline and over 5 years. We describe the changes in control status in patients over long-term follow-up and analyze the factors that were associated with longitudinal control patterns and related survival using the Cox hazard analysis. 134 patients (16.8%) were considered persistently controlled, 248 (31.1%) persistently uncontrolled and 416 (52.1%) changed control status during follow-up. The variables significantly associated with persistent control were not requiring triple therapy at baseline and having a better quality of life. Annual changes in outcomes (health status, psychological status, airflow limitation) did not differ in patients, regardless of clinical control status. All-cause mortality was lower in persistently controlled patients (5.5% versus 19.1%, p = 0.001). The hazard ratio for all-cause mortality was 2.274 (95% CI 1.394-3.708; p = 0.001). Regarding pharmacological treatment, triple inhaled therapy was the most common option in persistently uncontrolled patients (72.2%). Patients with persistent disease control more frequently used bronchodilators for monotherapy (53%) at recruitment, although by the end of the follow-up period, 20% had scaled up their treatment, with triple therapy being the most frequent therapeutic pattern. The evaluation of COPD control status provides relevant prognostic information on survival. There is important variability in clinical control status and only a small proportion of the patients had persistently good control. Changes in the treatment pattern may be relevant in the longitudinal pattern of COPD clinical control. Further studies in other populations should validate our results. Trial registration: Clinical Trials.gov: identifier NCT01122758