1,811 research outputs found
Preliminary results of research cruises carried out by IEO on the High Seas of the SW Atlantic (2008-2009), regarding cephalopod target species (Illex argentinus and Loligo gahi)
In March 2008 the Instituto Español de Oceanografía (IEO) through its Oceanographic Centre in Vigo (IEO-COV) initiated a historical series of research cruises aiming the assessment of the main commercial stocks on the High Seas (HS) of the SW Atlantic, including the study of two cephalopod species of important commercial interest, Argentine short-fin squid (Illex argentinus) and Patagonian squid (Loligo gahi). This working document presents a brief description of the methodology used in the cruises and preliminary results concerning CPUE by depth strata and geographical distribution of both mentioned species
Harmonically Trapped Quantum Gases
We solve the problem of a Bose or Fermi gas in -dimensions trapped by mutually perpendicular harmonic oscillator potentials. From the
grand potential we derive their thermodynamic functions (internal energy,
specific heat, etc.) as well as a generalized density of states. The Bose gas
exhibits Bose-Einstein condensation at a nonzero critical temperature
if and only if , and a jump in the specific heat at if and
only if . Specific heats for both gas types precisely coincide as
functions of temperature when . The trapped system behaves like an
ideal free quantum gas in dimensions. For we recover
all known thermodynamic properties of ideal quantum gases in dimensions,
while in 3D for 1, 2 and 3 one simulates behavior reminiscent of
quantum {\it wells, wires}and{\it dots}, respectively.Comment: 14 pages including 3 figures and 3 table
Infección por el virus de la leucemia felina (FeLV) y linfomas mediastínicos : dos casos clínicos
Se describen los hallazgos clínicos, radiológicos y analíticos en dos casos de gatos menores de dos años, que se presentaron con un cuadro clínico de caquexia, vómitos y disnea. En ambos casos las radiografías evidenciaron la presencia de masas intratorácicas; la analítica basada en test ELISA para FeLV y FIV y las necropsias efectuadas, parecen demostrar la relación existente entre gato joven, FeLV y el desarrollo de masas tumorales mediastínicas.The clinical, radiologycal and analytic discovery, are described in two cases of cats under two years of age which were presented with dyspnea, vomiting and caquexia. In both cases the radiographs showed the presence of intrathoracic masses; ELISA test for FeLV and FIV and the necropsy demostrated the relation of young cat and FeLV with the development of mediastinic tumoral masses
Many-body approach to the nonlinear interaction of charged particles with an interacting free electron gas
We report various many-body theoretical approaches to the nonlinear decay
rate and energy loss of charged particles moving in an interacting free
electron gas. These include perturbative formulations of the scattering matrix,
the self-energy, and the induced electron density. Explicit expressions for
these quantities are obtained, with inclusion of exchange and correlation
effects.Comment: 11 pages, 5 figures. To appear in Journal of Physics
Results of the Spanish Experimental Fishing in NAFO Subarea 1
An experimental fishing was carried out with a commercial Spanish vessel from October to December of the year
2003 in the Subarea 1. The main objective of the experimental fishing was to search for cephalopods species
concentrations inside the territorial waters of Greenland. During the experimental fishing a scientific observer stayed
on board to collect effort data, catches and yields by haul and Division, strata and gear. The observer carried out
length distributions samplings of the following species: Pandalus borealis, Sebastes spp., Hippoglossoides
platessoides, Gadus morhua and Macrourus berglax. Biological samplings of Reinhardtius hippoglossoides,
Hippoglossoides platessoides, Gadus morhua and Gadus ogac were also carried out. Greenland halibut was the
main species caught and the cephalopods, target species, have not been found in the experimental fishing
Gender-based violence against women with visual and physical disabilities
Violencia de género en mujeres con discapacidad física y visual. Antecedentes: investigaciones realizadas en distintos países señalan que las mujeres con discapacidad constituyen un grupo de mayor vulnerabilidad para sufrir violencia de género que las mujeres sin discapacidad. Método:un total de 96 mujeres adultas, 45 de ellas con discapacidad visual y 51 con discapacidad física, fueron entrevistadas para conocer la prevalencia de la violencia en este colectivo y su posible relación con factores socioeconómicos, sociodemográficos y relacionados con la discapacidad. Asimismo se analizaron las consecuencias que la violencia provoca en la salud y bienestar psicológico de las mujeres. Resultados: los resultados mostraron una mayor prevalencia de la violencia en esta muestra que el conocido para la población general de mujeres en España. Igualmente, aquellas que habían sido víctimas de violencia mostraron una peor situación económica, mayores niveles de dependencia física y mayores cargas familiares que las que no lo habían sido. Además, la violencia se asoció con peores niveles de bienestar emocional, salud psicológica, autoestima y apoyo social percibido en las mujeres entrevistadas, más allá de los atribuibles a su propia condición de discapacidad. Conclusiones: estos resultados se discutirán a la luz de algunos modelos que relacionan discapacidad y violencia de género
Bioingeniería cutánea: aplicaciones preclínicas y clínicas
Regenerative Medicine is an emerging field that combines basic research and clinical observations in order to identify the elements required to replace damaged tissues and organs in vivo and to stimulate the body's intrinsic regenerative capacity. Great benefits are expected in this field as researchers take advantage of the potential regenerative properties of both embryonic and adult stem cells, and more recently, of induced pluripotent stem cells. Bioengineered skin emerged mainly in response to a critical need for early permanent coverage of extensive burns. Later this technology was also applied to the treatment of chronic ulcers. Our group has established a humanized mouse model of skin grafting that involves the use of bioengineered human skin in immunodeficient mice. This model is suitable for the study of physiologic and pathologic cutaneous processes and the evaluation of treatment strategies for skin diseases, including protocols for gene and cell therapy and tissue engineering.Our work has been funded by the Spanish Department of Science and Innovation (SAF2007-61019 and SAF 2010-16976), by the Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), and by the Ministry of Health (Advanced Therapies Plan, TRA 0160)
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