Eyes wide shut - unusual two stage repair of pectus excavatum and annuloaortic ectasia in a 37 year old marfan patient: Case report

We report about a 37 year old male patient with a pectus excavatum. The patient was in NYHA functional class III. After performed computed tomography the symptoms were thought to be related to the severity of chest deformation. A Ravitch-procedure had been accomplished in a district hospital in 2009. The crack of a metal bar led to a reevaluation 2010, in which surprisingly the presence of an annuloaortic ectasia (root 73 × 74 mm) in direct neighborhood of the formerly implanted metal-bars was diagnosed. Echocardiography revealed a severe aortic valve regurgitation, the left ventricle was massively dilated presenting a reduced ejection fraction of 45%. A marfan syndrome was suspected and the patient underwent a valve sparing aortic root replacement (David procedure) in our institution with an uneventful postoperative course. A review of the literature in combination with discussion of our case suggests the application of stronger recommendations towards preoperative cardiovascular assessment in patients with pectus excavatum.

Numeros cromosomaticos de plantas occidentales 35-37

Se estudió la meyosis en botones florales fijados directamente en el campo. Los testigos se conservan en el Herbario de la Facultad de Farmacia de Barcelona (BCF).

Radio continuum and near-infrared study of the MGRO J2019+37 region

MGRO J2019+37 is an unidentified extended source of very high energy gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653 , discovered by AGILE and associated with PSR J2021+3651 , could contribute to the emission from MGRO J2019+37 . Aims. Our aim is to identify radio and near-infrared sources in the field of the extended TeV source MGRO J2019+37 , and study potential counterparts to explain its emission. Methods. We surveyed a region of about 6 square degrees with the Giant Metrewave Radio Telescope (GMRT) at the frequency 610 MHz. We also observed the central square degree of this survey in the near-infrared -band using the 3.5 m telescope in Calar Alto. Archival X-ray observations of some specific fields are included. VLBI observations of an interesting radio source were performed. We explored possible scenarios to produce the multi-TeV emission from MGRO J2019+37 and studied which of the sources could be the main particle accelerator. Results. We present a catalogue of 362 radio sources detected with the GMRT in the field of MGRO J2019+37 , and the results of a cross-correlation of this catalog with one obtained at near-infrared wavelengths, which contains ~3105 sources, as well as with available X-ray observations of the region. Some peculiar sources inside the ~1° uncertainty region of the TeV emission from MGRO J2019+37 are discussed in detail, including the pulsar PSR J2021+3651 and its pulsar wind nebula PWN G75.2+0.1 , two new radio-jet sources, the H II region Sh 2-104 containing two star clusters, and the radio source NVSS J202032+363158 . We also find that the hadronic scenario is the most likely in case of a single accelerator, and discuss the possible contribution from the sources mentioned above. Conclusions. Although the radio and GeV pulsar PSR J2021+3651 / AGL J2020.5+3653 and its associated pulsar wind nebula PWN G75.2+0.1 can contribute to the emission from MGRO J2019+37 , extrapolation of the GeV spectrum does not explain the detected multi-TeV flux. Other sources discussed here could contribute to the emission of the Milagro source.

Recomendaciones para la implementación del artículo 37 Difusión en Acceso Abierto de la Ley de la Ciencia, la Tecnología y la Innovación

La Ley de la Ciencia, la Tecnología y la Innovación, publicada en junio de 20111, recoge en su artículo 37 los principales aspectos a tener en cuenta a la hora de llevar a cabo la difusión en abierto de los resultados de la investigación financiada con fondos públicos y aceptados para su publicación en publicaciones de investigación seriadas o periódicas. Sin embargo, las dudas que han surgido en los diferentes ámbitos de aplicación han motivado la realización de un ejercicio de reflexión que permita ordenar cuáles son los pasos que los diferentes agentes involucrados deberían abordar para un correcto cumplimiento de la normativa legal y facilitar así la adecuada aplicación del artículo sobre “Difusión en acceso abierto”.El objetivo de este documento es contar con una guía práctica que defina los aspectos principales de la política nacional de acceso abierto y despeje el camino a todos los actores afectados, al especificar cuáles son los nuevos roles que habrán de adoptarse y elaborar una serie de recomendaciones destinadas a todos los colectivos implicados en la producción y gestión del mercado de la información científica...

Recomendaciones para la implementación del artículo 37 Difusión en Acceso Abierto de la Ley de la Ciencia, la Tecnología y la Innovación

La Ley de la Ciencia, la Tecnología y la Innovación, publicada en junio de 20111, recoge en su artículo 37 los principales aspectos a tener en cuenta a la hora de llevar a cabo la difusión en abierto de los resultados de la investigación financiada con fondos públicos y aceptados para su publicación en publicaciones de investigación seriadas o periódicas. Sin embargo, las dudas que han surgido en los diferentes ámbitos de aplicación han motivado la realización de un ejercicio de reflexión que permita ordenar cuáles son los pasos que los diferentes agentes involucrados deberían abordar para un correcto cumplimiento de la normativa legal y facilitar así la adecuada aplicación del artículo sobre “Difusión en acceso abierto”.El objetivo de este documento es contar con una guía práctica que defina los aspectos principales de la política nacional de acceso abierto y despeje el camino a todos los actores afectados, al especificar cuáles son los nuevos roles que habrán de adoptarse y elaborar una serie de recomendaciones destinadas a todos los colectivos implicados en la producción y gestión del mercado de la información científica...

Radio continuum and near-ingrared study of the MGRO J2019+37 region

Context. MGRO J2019+37 is an unidentified extended source of very high energy gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653, discovered by AGILE and associated with PSR J2021+3651, could contribute to the emission from MGRO J2019+37. Our aim is to identify radio and near-infrared sources in the field of the extended TeV source MGRO J2019+37, and study potential counterparts to explain its emission. Methods: We surveyed a region of about 6 square degrees with the Giant Metrewave Radio Telescope (GMRT) at the frequency 610 MHz. We also observed the central square degree of this survey in the near-infrared Ks-band using the 3.5 m telescope in Calar Alto. Archival X-ray observations of some specific fields are included. VLBI observations of an interesting radio source were performed. We explored possible scenarios to produce the multi-TeV emission from MGRO J2019+37 and studied which of the sources could be the main particle accelerator. Results: We present a catalogue of 362 radio sources detected with the GMRT in the field of MGRO J2019+37, and the results of a cross-correlation of this catalog with one obtained at near-infrared wavelengths, which contains ∼3 × 105 sources, as well as with available X-ray observations of the region. Some peculiar sources inside the ∼1◦ uncertainty region of the TeV emission from MGRO J2019+37 are discussed in detail, including the pulsar PSR J2021+3651 and its pulsar wind nebula PWN G75.2+0.1, two new radio-jet sources, the Hii region Sh 2-104 containing two star clusters, and the radio source NVSS J202032+363158. We also find that the hadronic scenario is the most likely in case of a single accelerator, and discuss the possible contribution from the sources mentioned above. Conclusions: Although the radio and GeV pulsar PSR J2021+3651 / AGL J2020.5+3653 and its associated pulsar wind nebula PWN G75.2+0.1 can contribute to the emission from MGRO J2019+37, extrapolation of the GeV spectrum does not explain the detected multi-TeV flux. Other sources discussed here could contribute to the emission of the Milagro source