L'Empremta de Jordi Peix a la ramaderia

L'autor, cap del Servei de Ramaderia sota la direcció de Jordi Peix durant onze anys, recorda, amb la col·laboració d'altres veterinaris, com es treballava a les ordres d'en Peix, com li deien, i les moltes coses que es van fer en l'àmbit de la producció ramadera mentre va estar al capdavant de la Direcció General. Recorda com suggeria en lloc de manar. Com estimulava l'autoformació del tècnic per, després, discutir-hi les idees que li exposava. Com no solament tolerava les crítiques, sinó que les provocava per generar discussions que aportessin noves idees. Recorda com li agradava parlar amb tothom, quan deixava palesa la seva àmplia formació i els dots de bon conversador. I com defensava tenaçment i amb arguments les seves idees fins a arribar a convèncer. Per millorar la producció agroramadera a Catalunya Jordi Peix volia una Administració «col·laboradora», de coresponsabilitat amb els administrats i, per aconseguir els seus objectius, es plantejava dos camins paral·lels: un sector agrari estructurat i amb voluntat de participar i una Administració dotada adequadament de tècnics qualificats i d'equipament per a donar el suport necessari. A més, tenia un model per seguir: el sector agroalimentari francès.The author, head of the Livestock Service of the Government of Catalonia for eleven years under the direction of Jordi Peix, remembers how work was carried out, in co-operation with other veterinarians, under the orders of Peix, and the many things that were achieved in the livestock production area during his time as the head of the Directorate General. The author remembers how Peix made suggestions instead of giving orders and how he encouraged the self-training of technicians, discussing with them afterwards the ideas that they acquired in this way. Peix not only tolerated criticism but encouraged it in order to generate discussions that brought up new ideas. The author also remembers how he liked to talk to everyone, making patent his broad training and his skills as a conversationalist. Healso defended his own ideas tenaciously and with sound arguments when he sought to convince people of them. To improve agro-livestock production in Catalonia, Jordi Peix wanted a “collaborative” Public Administration holding co-responsibility with the people. To achieve his objectives, he proposed two parallel paths: a structured participative agricultural sector and a Public Administration that is properly equipped with qualified technicians and with the facilities required to provide the necessary support. In this respect, he had a model: the French agriculture and food industry.El autor, jefe del Servicio de Ganadería durante once años bajo la dirección de Jordi Peix, recuerda, con la colaboración de otros veterinarios, cómo se trabajaba a las órdenes de «en Peix», como le conocían coloquialmente, y las muchas cosas que se hicieron en el ámbito de la producción ganadera, mientras estuvo al frente de la Dirección General. Recuerda cómo sugería en lugar de mandar. Cómo estimulaba la autoformación del técnico para, después, discutir con él las ideas que le exponía. Cómo no solo toleraba las críticas, sino que las provocaba para generar discusiones que aportaran nuevas ideas. Recuerda cómo le gustaba hablar con todos, evidenciando su amplia formación y sus dotes de buen conversador. Y cómo defendía tenazmente y con argumentos sus ideas, hasta llegar a convencer. Para la mejora de la producción agroganadera en Cataluña, Jordi Peix quería una Administración «colaboradora», en corresponsabilidad con los administrados y, para conseguir sus objetivos, se planteaba dos caminos paralelos: un sector agrario estructurado y con voluntad de participar y una Administración adecuadamente dotada en técnicos cualificados y en equipamiento para dar el apoyo necesario. Además, tenía un modelo que seguir, el sector agroalimentario francés

Contribution of Xenopus model to a better understanding of cardiac outflow tract

Contribution of Xenopus model to a better understanding of cardiac outflow tract. A Torres-Prioris 1, SJ Smith 2, TJ Mohun 2, B Fernández 1, AC Durán 1. 1 Department of Animal Biology, Faculty of Science, and Biomedical Research Institute of Málaga (IBIMA), University of Málaga, Spain. 2 Developmental Biology Division, The Francis Crick Institute, Mill Hill Laboratory, London, UK. The morphology and morphogenesis of the cardiac outflow tract is a major topic in the study of the vertebrate circulatory system, especially regarding the pathologies affecting this region in humans. Recent studies have demonstrated that, in fish, the cardiac outflow tract consists of a myocardial conus arteriosus and a nonmyocardial bulbus arteriosus. Moreover, the bulbus arteriosus of fish has been considered homologous to the intrapericardial base of the aortic and pulmonary trunks of birds and mammals. Under this perspective, we have conducted a study on the outflow tract of Xenopus laevis, using histological, immunohistochemical and 3D reconstruction techniques. It has been assumed that the outflow tract of Xenopus, which is intercalated between the ventricle and the great arterial trunks, is of myocardial nature. At its luminal side, it contains two sets of valves between which the so-called spiral valve lies. Our results demonstrate that, together with a proximal myocardial segment, a distal, nonmyocardial, intrapericardial segment is also present in amphibians. We propose that this distal segment, from which the pulmocutaneous and systemic arteries arise, is homologous to the bulbus arteriosus of fish. Therefore, the bulbus arteriosus is an evolutionarily conserved structure, which has become the aortic and pulmonary roots of birds and mammals. Our findings contribute to strengthening Xenopus as a good model to better understand the outflow tract morphology and evolution, and as an emerging model for studying human congenital heart diseases. This work was supported by CGL2010-16417, BES-2011-046901, Estancias Breves para FPI (2012, 2013) and FEDER funds.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. CGL2010-16417, BES-2011-046901, Estancias Breves para FPI (2012, 2013), FEDER funds

Error estimation in multitemporal InSAR deformation time series, with application to Lanzarote, Canary Islands

Interferometric Synthetic Aperture Radar (InSAR) is a reliable technique for measuring crustal deformation. However, despite its long application in geophysical problems, its error estimation has been largely overlooked. Currently, the largest problem with InSAR is still the atmospheric propagation errors, which is why multitemporal interferometric techniques have been successfully developed using a series of interferograms. However, none of the standard multitemporal interferometric techniques, namely PS or SB (Persistent Scatterers and Small Baselines, respectively) provide an estimate of their precision. Here, we present a method to compute reliable estimates of the precision of the deformation time series. We implement it for the SB multitemporal interferometric technique (a favorable technique for natural terrains, the most usual target of geophysical applications). We describe the method that uses a properly weighted scheme that allows us to compute estimates for all interferogram pixels, enhanced by a Montecarlo resampling technique that properly propagates the interferogram errors (variance-covariances) into the unknown parameters (estimated errors for the displacements). We apply the multitemporal error estimation method to Lanzarote Island (Canary Islands), where no active magmatic activity has been reported in the last decades. We detect deformation around Timanfaya volcano (lengthening of line-of-sight ∼ subsidence), where the last eruption in 1730–1736 occurred. Deformation closely follows the surface temperature anomalies indicating that magma crystallization (cooling and contraction) of the 300-year shallow magmatic body under Timanfaya volcano is still ongoing.Peer reviewe

Organic Molecules in the Galactic Center. Hot Core Chemistry without Hot Cores

We study the origin of large abundances of complex organic molecules in the Galactic center (GC). We carried out a systematic study of the complex organic molecules CH3OH, C2H5OH, (CH3)2O, HCOOCH3, HCOOH, CH3COOH, H2CO, and CS toward 40 GC molecular clouds. Using the LTE approximation, we derived the physical properties of GC molecular clouds and the abundances of the complex molecules.The CH3OH abundance between clouds varies by nearly two orders of magnitude from 2.4x10^{-8} to 1.1x10^{-6}. The abundance of the other complex organic molecules relative to that of CH3OH is basically independent of the CH3OH abundance, with variations of only a factor 4-8. The abundances of complex organic molecules in the GC are compared with those measured in hot cores and hot corinos, in which these complex molecules are also abundant. We find that both the abundance and the abundance ratios of the complex molecules relative to CH3OH in hot cores are similar to those found in the GC clouds. However, hot corinos show different abundance ratios than observed in hot cores and in GC clouds. The rather constant abundance of all the complex molecules relative to CH3OH suggests that all complex molecules are ejected from grain mantles by shocks. Frequent (similar 10^{5}years) shocks with velocities >6km/s are required to explain the high abundances in gas phase of complex organic molecules in the GC molecular clouds. The rather uniform abundance ratios in the GC clouds and in Galactic hot cores indicate a similar average composition of grain mantles in both kinds of regions. The Sickle and the Thermal Radio Arches, affected by UV radiation, show different relative abundances in the complex organic molecules due to the differentially photodissociation of these molecules.Comment: 18 pages, 10 Postscript figures, uses aa.cls, aa.bst, 10pt.rtx, natbib.sty, revsymb.sty revtex4.cls, aps.rtx and aalongtabl.sty. Accepted in A&A 2006. version 2. relocated figures and tables. Language editor suggestions. added reference

Las sociedades científicas de estudiantes de odontología: una fuerza motriz para la investigación.

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Geodetic signature produced by different sources in a gravitational layered Earth model

Presented in the First Meeting of Special Study Group 4.176 (Models of temporal variations of the gravity field) of the International Association of GeodesyWe describe theoretical and computational methods developed by our group for the calculation of displacement, gravity and potential changes resulting from different sources (representing magma bodies and faults) in elastic-gravitational and viscoelastic-gravitationallayered media. The existing codes corresponding to the models are also presented with the information about how they can be obtained for scientific use. The results obtained and work currently in progress are also described in this paper.Peer reviewe

Cultural Representations of Gender Vulnerability and Resistance: A Mediterranean Approach to the Anglosphere, edited by María Isabel Romero-Ruiz and Pilar Cuder-Domínguez (Cham: Palgrave Macmillan, 2022)

Review of Cultural Representations of Gender Vulnerability and Resistance: A Mediterranean Approach to the Anglosphere (2022) edited by María Isabel Romero-Ruiz and Pilar Cuder-Domínguez

Microwave-assisted extraction of Ulva spp. including a stage of selective coagulation of ulvan stimulated by a bio-ionic liquid

Microwave-assisted hydrothermal processing was proposed to recover high valuable compounds with antioxidant and gelling features from Ulva spp. green seaweed. The influence of the extraction conditions on the solubles, ulvan fraction and residual solid phase was studied to achieve a global valorization of the seaweed. A particular emphasis was placed on the selective coagulation of ulvan stimulated by a bio-ionic liquid during the extraction process. The achieved outcomes indicated that the selected microwave treatment exhibited a notable impact on the phytochemical properties of the soluble extracts, with the highest values of sulfate and protein content at 160 °C, and the highest antioxidant features at 200 °C. The most prominent molecular weight distributions were also identified for systems hydrothermal treated at 160 °C. The ulvan analyses showed that those extracted after microwave treatment at 160 °C showed the highest yields, molecular weight and the strongest gel features from the rheological point of view. The presence of the chloride chlorine during the extraction process favored the ulvan performance and the enhancement of the corresponding viscoelastic properties.Agencia Estatal de Investigación | Ref. RYC2018-024454-IXunta de Galicia | Ref. ED431F 2020/01ED481D-2022/018Financiado para publicación en acceso aberto: Universidade de Vigo/CISU