4,846 research outputs found
FotopletismografÃa laparoscópica: Nueva técnica mÃnimamente invasiva y estudios experimentales iniciales
In the endoscopic procedures there is not possible to use the sense of touch for the detection of weak palpitations as in open surgery, neither to directly evaluate the oxygenation and perfusion of intra-corporeal organs and tissues. Here, we present the initial results after the application of laparoscopic photoplethysmography, a novel technique developed by our group, which allows obtaining specific clinical parameters and overcome the cited drawbacks. From the photoplethysmograpic signals of different wavelengths recorded in intra-abdominal organs and territories of animal models, their pulse values and oxygenation related quotients have been derived. © Sociedad Española de Óptica.Este trabajo ha sido financiado por el proyecto PI 04/0715 del Fondo de Investigaciones Sanitarias. Agradecemos la colaboración prestada durante el estudio experimental por Dr. José Carlos Manuel Palazuelos, Dr. Juan Carlos González Cueli y las diplomadas en EnfermerÃa del CENDOS. Parte de los resultados aquà expuestos han sido presentados oralmente en el Congreso de la Sociedad Española de Laparoscopia (SECLA 2009) celebrado en Santander en mayo de 2009. SMLS está contratada por el Programa I3P con financiación del Fondo Social Europeo.Peer Reviewe
Functional recovery in patients with schizophrenia: recommendations from a panel of experts
emission and encompasses multiple aspects of the patient's life, making it difficult to settle on a definition and to develop reliable assessment criteria. In this consensus process based on a panel of experts in schizophrenia, we aimed to provide useful insights on functional recovery and its involvement in clinical practice and clinical research.
Methods: After a literature review of functional recovery in schizophrenia, a scientific committee of 8 members prepared a 75-item questionnaire, including 6 sections: (I) the concept of functional recovery (9 items), (II) assessment of functional recovery (23 items), (III) factors influencing functional recovery (16 items), (IV) psychosocial interventions and functional recovery (8 items), (V) pharmacological treatment and functional recovery (14 items), and (VI) the perspective of patients and their relatives on functional recovery (5 items). The questionnaire was sent to a panel of 53 experts, who rated each item on a 9-point Liken scale. Consensus was achieved in a 2-round Delphi dynamics, using the median (interquartile range) scores to consider consensus in either agreement (scores 7-9) or disagreement (scores 1-3). Items not achieving consensus in the first round were sent back to the experts for a second consideration.
Results: After the two recursive rounds, consensus was achieved in 64 items (85.3%): 61 items (81.3%) in agreement and 3 (4.0%) in disagreement all of them from section II (assessment of functional recovery). Items not reaching consensus were related to the concepts of functional recovery (1 item, 13%), functional assessment (5 items, 6.7%), factors influencing functional recovery (3 items, 4.0%), and psychosocial interventions (2 items, 5.6%).
Conclusions: Despite the lack of a well-defined concept of functional recovery, we identified a trend towards a common archetype of the definition and factors associated with functional recovery, as well as its applicability in clinical practice and clinical research.This project was funded by Janssen. The funding body participated in study design and data interpretation
Diagnosis and report of Coccus moestus De Lotto, 1959 (Hemiptera: Coccomorpha: Coccidae), a new record from Cuba.
La escama blanda Coccus moestus De Lotto, 1959 (Hemiptera: Coccidae) se registra por primera vez para Cuba. Los ejemplares fueron recolectados en la Ciénaga de Majaguillar, al noreste de la provincia de Matanzas, Cuba, sobre Calophyllum antillanum Britton (Calophyllaceae). La especie se diagnostica e ilustra con base en material colectado en este estudio. Se provee una clave taxonómica para separar las especies del género Coccus Linnaeus registradas en Cuba
UCP2 Regulates the Glucagon Response to Fasting and Starvation
Glucagon is important for maintaining euglycemia during fasting/starvation, and abnormal glucagon secretion is associated with type 1 and type 2 diabetes; however, the mechanisms of hypoglycemia-induced glucagon secretion are poorly understood. We previously demonstrated that global deletion of mitochondrial uncoupling protein 2 (UCP2−/−) in mice impaired glucagon secretion from isolated islets. Therefore, UCP2 may contribute to the regulation of hypoglycemia-induced glucagon secretion, which is supported by our current finding that UCP2 expression is increased in nutrient-deprived murine and human islets. Further to this, we created α-cell–specific UCP2 knockout (UCP2AKO) mice, which we used to demonstrate that blood glucose recovery in response to hypoglycemia is impaired owing to attenuated glucagon secretion. UCP2-deleted α-cells have higher levels of intracellular reactive oxygen species (ROS) due to enhanced mitochondrial coupling, which translated into defective stimulus/secretion coupling. The effects of UCP2 deletion were mimicked by the UCP2 inhibitor genipin on both murine and human islets and also by application of exogenous ROS, confirming that changes in oxidative status and electrical activity directly reduce glucagon secretion. Therefore, α-cell UCP2 deletion perturbs the fasting/hypoglycemic glucagon response and shows that UCP2 is necessary for normal α-cell glucose sensing and the maintenance of euglycemia
Effect of Grazing Management on Herbage Accumulation of Lucerne-Orchard Grass Sward
Throughout most of México, lucerne (Medicago sativa) is the primary forage legume used in the dairy industry. Unfortunately, lucerne does not grow in late autumn and winter due to adverse weather. Recent studies with lucerne have suggested that the inclusion of a companion grass will invariably increase the seasonal distribution and total annual yield of swards (Laidlaw & Teuber, 2001). However the management of mixed swards containing lucerne is difficult as a grazing frequency or intensity which suits one species may be detrimental to the other. Changes in balance between grass and legume, especially in grazed swards, have been observed. In México mixtures of lucerne-orchard grass have a good persistence and productivity. However the explanation for this is unclear. This study examined the effects of different grazing management practices on lucerne-orchard grass production and seasonal distribution
Startup facilitador de procesos de atenci?n, pago de cuentas y marketing de fidelizaci?n para aumentar el tr?fico de consumidores a los disco bares
En la actualidad, los startups que pertenecen al modelo de negocio del tipo orquestadores de redes son utilizados en diferentes sectores de negocio, facilitando sus operaciones y mejorando el servicio al cliente a trav?s de la tecnolog?a. Es as? que, teniendo conocimiento de un sector desatendido, se opta por el desarrollo de una soluci?n orientada al segmento de bares, donde estos puedan utilizar el modelo de negocio mencionado en sus locales. La idea de negocio que se ha planteado en el siguiente trabajo es la de ser intermediadores entre los bares y los consumidores, en la cual los consumidores puedan seleccionar el bar, realizar reservas de mesas en cualquiera de los diferentes bares afiliados, elegir piqueos y tragos, pagar la cuenta de manera individual, en conjunto o dividirla de acuerdo a la conveniencia de los consumidores. Por parte del bar, podr?n tener mayor informaci?n de sus clientes, presentar la carta del local, enviar promociones al aplicativo y brindar una soluci?n de pago r?pida y eficaz para sus clientes. El objetivo del presente proyecto de negocio es evaluar la viabilidad operativa, econ?mica y comercial para que el aplicativo sea atractivo y utilizado en los bares del distrito de Miraflores y Barranco
Tachyonic Universes in Patch Cosmologies with
In this article we study closed inflationary universe models by means of a
tachyonic field. We described a general treatment for created a universe with
in patch cosmology, which is able to represent General Relativity,
Gauss-Bonnet or Randall-Sundrum patches. We use recent data from astronomical
observations to constrain the parameters appearing in our model.Comment: 15 pages, 2 figures. Accepted by Modern Physics Letters
Best standards for data collection and reporting requirements on FOBs: towards a science-based FOB fishery management.
A major concern for tropical tunas, on these last years, has been the worldwide increasing use of drifting FOBs
by purse seiners, which are equipped with satellite buoys and echo-sounders. The use of these floating objects
has contributed to increase the catch of skipjack tuna, but also of juveniles of yellowfin and bigeye tunas.
Moreover, it has increased the amount of by-catch (including some species classified as vulnerable or
endangered) and has likely resulted in adverse effects on the ecology of fish and on vulnerable areas (e.g.
beaching events on coral reef areas). Despite the increasing FOB use and concerns, little information is
available on FOB use worldwide for an appropriate monitoring and management. Thus, FOB monitoring has
become a priority in all tuna t-RFMOs. However, the data collection and reporting requirements around FOBs
are not standardized and there are significant data gaps. The aim of this document is to review current
requirements and procedures in place and propose standards for data collection and submission on FOBs to tRFMOs. The proposals included in this document are the result of a collaborative work between scientists and
the fishing industry
- …