Trabajos de Prehistoria: su trayectoria como revista de impacto internacional

[ES] En 2008 Trabajos de Prehistoria entró en las bases de datos internacionales del SSCI, A&HCI y Scopus siendo la primera revista española del área de Arqueología con factor de impacto JCR. En el trabajo se muestra cómo este proceso de internacionalización es consecuencia de diferentes iniciativas de política científica del estado a nivel nacional y del propio CSIC. Se analiza la trayectoria de la revista desde su creación y se valora el impacto de esta internacionalización en su gestión reciente. Cabe destacar el papel[EN] Trabajos de Prehistoria was included in 2008 in the SSCI, A&HCI and Scopus international scientific databases. It was the first Spanish archaeological journal with a JCR impact factor. This paper shows how several initiatives in scientific policy by the National Spanish Government and the CSIC lead to international recognition. This study also shows the trajectory of the journal since its creation and evaluates the effects of the internationalisation on the current management. The role played by the reviewers has been fundamental in attaining and maintaining the journal’s high scientific quality.Peer reviewe

Los estudios de Grado en la formación inicial de Maestros en Educación Primaria. Miradas de formadores y de futuros maestros.

Presentamos a los lectores de la Revista Profesorado un Monográfico sobre el desarrollo del conocimiento profesional en la formación inicial de Maestros en Educación Primaria. Es fruto de la realización de un Proyecto de Investigación Coordinado entre las universidades de Santiago de Compostela (USC) y Barcelon (UB), financiado por el Ministerio de Economía y Competitividad (MINECO)1 y realizado en el periodo 2013-201

Case study as an innovative teaching methodology for environmental engineering learning

Este trabajo recoge la experiencia de incorporar el estudio mediante un caso como método docente dentro la asignatura Ingeniería Ambiental (Grado en Ingeniería Química, UAM). Se pretende profundizar en el desarrollo de varias competencias de la asignatura que no se adquieren de manera adecuada con los métodos docentes tradicionales. Dichas competencias incluyen pensamiento crítico, toma y comunicación de decisiones. El caso de estudio está basado en una situación real y resulta más complejo que los problemas resueltos en clase por el profesor. El caso se desarrolla junto a diversas cuestiones que guían a los estudiantes hacia la solución del problema. Los estudiantes resuelven el caso en clase trabajando en pequeños grupos siempre con la ayuda y guía del profesor. Posteriormente, los estudiantes exponen sus principales resultados y conclusiones generando un debate con sus compañeros y con el profesor. La implementación de esta metodología docente ha dado lugar a un aprendizaje más consistente favoreciendo la asimilación de conceptos teóricos complejos, la discusión de ideas y el razonamiento crítico. Además, se ha potenciado la capacidad de transmitir los conocimientos adquiridos por parte de los estudiantesIn this work, the application of a case study has been implemented as a new teaching methodology in the subject of Environmental Engineering (B.Sc. in Chemical Engineering at UAM University). The main goals are focused on improving important competences of the subject which are not correctly acquired by the students with the traditional theoretical lessons. These competences include critical thinking, decisions making and communication skills. The case has been inspired in a real situation and it is more complex than the problems usually solved by the professor in regular classes. The proposed case study has been developed together with questions which will guide the students to solve the problem. The students have solved the case in the classroom working in small groups, always with the support of the professor. Afterwards, the students showed their main results and conclusions generating a debate with their colleagues and the professor. The case study approach has proved to improve the assimilation of complex theoretical concepts, to favor the discussion and the ability to communicate the acquired knowledge as well as to develop critical thinkin

Role of sulfites and 4-hexylresorcinol in microbial growth and melanosis prevention of deepwater pink shrimp (Parapenaeus longirostris) using a controlled atmosphere

A controlled atmosphere containing 48% CO2 and 7% O2 was used in association with refrigeration for storage of deepwater pink shrimp (Parapenaeus longirostris). Shrimp were treated with two different concentrations of sodium metabisulfite or 4-hexylresorcinol and subjected to the controlled atmosphere immediately after capture onboard ship or on arrival in port. Total volatile basic nitrogen, total viable counts, enterobacteria, lactic acid bacteria, and luminescent bacteria were determined, and black spot progression was evaluated. The combined effect of controlled atmosphere and melanosis inhibitors was used to delay black spot development as compared to the shrimp stored in ice alone. Storage under the controlled atmosphere without ice limited microbiological quality, namely, total viable counts, but enterobacterial growth was lower.Peer Reviewe

Melanosis inhibition and SO2 residual levels in shrimps (Parapenaeus longirostris) after different sulfite-based treatments

The effectiveness of different sulfite-based treatments to prevent melanosis in fresh deepwater pink shrimp (Parapenaeus longirostris) was evaluated. Increasing the concentration of sulfites, different methods of application (immersion and dust) and synergy with other compounds, such as citric acid and chelants, were investigated. The level of SO2 residues in the muscle was determined in a selection of the most effective treatments. One-hour dip treatment with 50 g kg-1 sulfite, together with citric acid and chelants, was effective for melanosis prevention for at least one week. With this treatment, the statutory limit of 0.3 g kg -1 SO2 in edible part was not exceeded by the majority of samples analysed. © 2005 Society of Chemical Industry.Peer Reviewe

Quality of thawed deepwater pink shrimp (Parapenaeus longirostris) treated with melanosis-inhibiting formulations during chilled storage

This work investigates how the treatment of thawed deepwater pink shrimp (Parapenaeus longirostris) with several melanosis-inhibiting formulations, affects the quality of the shrimp during chilled storage. Formulations were as follows: a formulation containing 4-hexylresorcinol (0.1 and 0.05%), in combination with organic acids and chelating agents, a commercial formula based on sulphites, and a mixture of gluconic acid and commercial sulphites. No noticeable differences were observed for both trimethylamine and total volatile bases during chilled storage. pH evolution was irrespective of the treatment condition. Microbial load enlarged after the sixth day of chilled storage. Higher total bacteria counts were associated with the control and sulphite treatment conditions, while lactic acid bacteria growth seemed to be favoured under formulations based on 4-hexylresorcinol. The appearance of melanosis occurred more rapidly in control shrimp or in shrimp treated with commercial sulphites. 4-hexylresorcinol formulations preserved the quality of thawed shrimp and could replace traditional sulphites. © 2007 The Authors. Journal compilation 2007 Institute of Food Science and Technology Trust Fund.Peer Reviewe

The entangling side of the Unruh-Hawking effect

We show that the Unruh effect can create net quantum entanglement between inertial and accelerated observers depending on the choice of the inertial state. This striking result banishes the extended belief that the Unruh effect can only destroy entanglement and furthermore provides a new and unexpected source for finding experimental evidence of the Unruh and Hawking effects.Comment: 4 pages, 4 figures. Added Journal referenc

Rectal Metastases from Squamous Cell Carcinoma: A Case Report and Review of the Literature

Non-small-cell lung cancer (NSCLC) represents 85% of lung cancer. The most frequent sites of distant metastasis are the liver, adrenal glands, bones and brain. Gastrointestinal metastases are uncommon and rectal metastases are extremely rare. Here we report a case of squamous cell carcinoma of the lung with rectal metastases

Dissemination of multiresistant Enterobacter cloacae isolates producing OXA-48 and CTX-M-15 in a Spanish hospital

Twenty-one multiresistant Enterobacter cloacae isolates producing OXA-48 (n = 10), CTX-M-15 (n = 7) or both (n = 4) β-lactamases were detected in a Spanish hospital during a 1-year period (June 2013 to June 2014). The isolates were also resistant to non-β-lactam antimicrobials, further complicating the therapeutic options. Genotyping of the isolates identified two major clones (ST74 and ST66) that caused prolonged outbreaks in different buildings of the hospital as well as some sporadic isolates (ST78, ST45 and ST295). Isolates belonging to clone 1 (n = 7) were carbapenem-resistant and carried the blaOXA-48 gene on a conjugative IncL/M plasmid of ca. 65 kb. Clone 2 isolates (n = 11) were resistant to cefepime and harboured the blaCTX-M-15 gene on an ca. 150-kb, non-conjugative plasmid of the IncF group, co-harbouring the qnrB and aac(6′)-Ib-cr genes encoding quinolone resistance. Four clone 2 isolates were also resistant to carbapenems owing to the co-production of OXA-48. Most of the isolates were recovered from critically ill patients and were admitted to intensive care units; a single patient was transferred from another Spanish hospital. Intrahospital and interhospital dissemination of multiresistant E. cloacae isolates is of major clinical concern as it could lead to endemic nosocomial situations