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Publications (65)
This paper explores how self-management work groups are formed in higher education institutions and how this affects the effectiveness of the teams. For this, we investigated the experiences of 560 students who were members of self-management learning teams, using factorial analysis, cluster analysis and ordinal logit regression. We focus on self-m...
Background:
Most patients with severe traumatic brain injury (sTBI) in low- or-middle-income countries and surprisingly many in high-income countries are managed without intracranial pressure (ICP) monitoring. The impact of the first published protocol (Imaging and Clinical Examination [ICE] protocol) is untested against nonprotocol management.
O...
Pancreatic cancer (PanCa) is the third leading cause of cancer-related deaths in the United States with limited therapeutic options available. Gemcitabine (GEM), a deoxycytidine nucleoside analog is currently considered the most effective therapy for PanCa; however, it shows only a marginal survival benefit of 6 months. PanCa cells are addicted to...
Pancreatic cancer is the fourth leading cause of cancer-related deaths in the United States with limited therapeutic approaches. Dysregulation of the ribosome biogenesis process was observed in various cancer including pancreatic cancer. Therefore, strategically targeting ribosome biogenesis could be a novel approach for pancreatic cancer treatment...
While epoxyeicosatrienoic acids (EETs) have been implicated in breast cancer growth and progression, less is known about their effects on oncogene transcription. We have previously found that the oncogenic regioisomer (±)14,15-EET drives mitochondrial respiration, ATP synthesis, and proliferation of ER+/HER2- breast cancer cells [Cell Chem Biol. 20...
Heteroepitaxy of β-phase gallium oxide (β-Ga2O3) thin films on foreign substrates shows promise for the development of next-generation deep ultraviolet solar blind photodetectors and power electronic devices. In this work, the influences of the film thickness and crystallinity on the thermal conductivity of (2̅01)-oriented β-Ga2O3 heteroepitaxial t...
Radio frequency (RF) microelectromechanical systems (MEMS) based on Al1-xSc
x
N are replacing AlN-based devices because of their higher achievable bandwidths, suitable for the fifth-generation (5G) mobile network. However, overheating of Al1-xSc
x
N film bulk acoustic resonators (FBARs) used in RF MEMS filters limits power handling and thus the pho...
The continuous flow intersections (CFI) increase the operational capacity of road systems with congestion problems, by using shared lanes located at the access points before the intersection. However, the CFI presents road safety risks that increase the likelihood of vehicle collision. This article proposes a geometric design composed of raised del...
Purpose
To prospectively evaluate the initial human experience with an absorbable vena cava filter designed for transient protection from pulmonary embolism (PE).
Materials and Methods
This was a prospective, single-arm, first-in-human study of 8 patients with elevated risk of venous thromboembolism (VTE). Seven absorbable IVC filters (made of pol...
Mesocosm experiments have been fundamental to investigate the effects of elevated CO2 and ocean acidification (OA) on planktic communities. However, few of these experiments have been conducted using naturally nutrient-limited waters and/or considering the combined effects of OA and ocean warming (OW). Coccolithophores are a group of calcifying phy...
Introduction Since the ancient Egyptian scribes, aspirin has been the world's wonder drug. While the benefit of aspirin after myocardial infarction or stroke is indisputable, its role in primary prevention has been debated for 40 years. Methods Electronic databases were searched for RCT that compared aspirin to placebo in the primary prevention of...
Gallium nitride (GaN) has emerged as one of the most attractive base materials for next-generation high-power and high-frequency electronic devices. Recent efforts have focused on realizing vertical power device structures such as in-situ oxide, GaN interlayer based vertical trench metal-oxide-semiconductor field-effect transistors (OG-FETs). Unfor...
O alto custo de um aparato experimental faz com que as escolas não destinem seus investimentos à construção de laboratórios, causando defasagem no ensino experimental de Física. Como forma de diminuir a desigualdade entre as escolas que possuem alto investimento e as que não possuem e levar a Física experimental aos alunos, este trabalho apresenta...
En este artículo se presentan los resultados de un estudio técnico y económico sobre
riego por goteo subterráneo y riego por inundación en maíz y alfalfa. El estudio se ha
llevado a cabo entre 2016 y 2018 en la finca del Centro Agronómico de La Melusa (provincia de Huesca), dentro de la zona regable del canal de Aragón y Cataluña.
Con la ejecución del Atlas Ornitológico de Aragón tan solo se generó una primera aproximación de estatus, distribución, hábitat y abundancia de la población reproductora del gorrión alpino (Montifringilla nivalis) en el Pirineo Central (Aragón-España). En el presente artículo se ha revisado, actualizado y obtenido información sobre distribución, há...
En un contexto de medios sociales digitales, donde existen múltiples formas de vinculación entre usuarios, resulta importante contar con herramientas que permitan analizar los procesos de interacción presentes en estas plataformas. El análisis de redes sociales utiliza frecuentemente diagramas nodo-enlace para representar las relaciones entre un co...
This paper aims to examine how higher education affects entrepreneurial vocation in a very specific segment, namely university education in tourism. We used a theoretical approach based on the psychological foundations of intentional theory to analyse a sample of 122 graduate and undergraduate university students in tourism from the perspective of...
This paper examines the effect of curricular and extracurricular activities on the entrepreneurial motivation and competences of university students. In order to address these issues, the authors have used Ajzen's model of planned behaviour, including curricular and extracurricular activities, analysing their effect on university students’ attitude...
Mass transfer of H2 to the liquid phase is the main barrier to perform the chemoautotrophic removal of CO2 from the biogas. In this study, the potential of a pilot hollow-fiber membrane bioreactor for the conversion of H2 and CO2 to CH4 was evaluated. The system transformed 95% of H2 and CO2 fed at a maximum load rate of 40 m3 H2⁄m3 reactor d and p...
With the completion of the Ornithological Atlas of Aragon only a first approximation of the distribution of the breeding population of Wallcreeper (Tichodroma muraria) in Aragon was made. In this paper we update the information about its distribution and we made a first estimate of population size. Overall total 145 records were obtained during the...
España solo posee una población reproductora de Quebrantahuesos en los Pirineos, constituida por 112 unidades reproductoras (UR) (datos de 2011), de las cuales el 66% se ubican en el Pirineo Central (Aragón). Entre 1987 y 2011 la población reproductora del Pirineo aragonés creció a una media anual del 4,36%. Simultáneamente se produjo un aumento de...
What challenges do researchers face when surveying immigrant populations and ethnic minorities? What are the best ways to ensure that general population surveys adequately represent minority groups? The first book to systematically address these questions, this volume analyzes more than a dozen surveys conducted in eight Western countries on topics...
La acertada identificación de problemas de fondo es esencial en el bombeo mecánico para lograr una producción óptima y reducir los costos de operación y mantenimiento. Es necesario desarrollar y aplicar metodologías que permitan identificar de forma rápida problemas que puedan afectar la operación. La condición mecánica y desempeño del equipo de fo...
This paper explores the use of repetitive peripheral magnetic stimulation (RPMS) techniques in order to feedback forces in telerobotics systems. These techniques would be applied in teleoperation systems where a non-mechanical interface, e.g. a gesture interface, is used by the operator to control the remote slave. The paper proposes to stimulate t...
The immigration debates took center stage in 2006 after the massive immigrant marches of that year. Although media pundits and politicians pontificated on the issue, there was an absence of solid information regarding the internal decision making process on the topic of immigration as it unfolded in the corridors of power of both the U.S. and the M...
This paper studies the effects of social insurance policies on efficiency and dis-tribution of resources in a general equilibrium model of a closed economy with heterogeneous agents and repeated moral hazard. I compare optimal allocations in stationary recursive equilibria for economies with different guaranteed minimum consumption levels (social i...
TREG is a new, easy to use recoverable virtual memory library. It implements transactional services using Incremental Messages (IMs), a set of operating system kernel services that provide support for flexible and efficient user-level management of replicated data. Unlike other recoverable virtual memories, TREG automatically tracks data changes, r...
En: Boletín de la Institución Libre de Enseñanza Madrid 2001, II época, n. 42-43, mayo ; p. 175-179 Este artículo se dedica a la vida y obra de Antonio de Lara Gavilán, Tono. Autodidacta, Tono aplicó formulaciones gráficas de vanguardia, próximas al futurismo, a al constructivismo. Con su obra 'El arca de Noé' se alinea con las propuestas de otros...
A descriptive cross-sectional study was conducted aimed at knowing the behaviour of violence against women at the "Ignacio Agramonte" microdistrict belonging to the "Tula Aguilera" Teaching Polyclinic, in the municipality of Camagüey, from August Ist, 1997, to January 3Ist, 1998. Of a universe of 1 088 women aged 15-49, 310 were surveyed. The size...
Incremental messages have been designed to efficiently and
flexibly manage replicated copies of critical data. We describe this new
type of messages and show how applications benefit from an extended
message passing interface which provides support for creating updating
and recovering data copies, combining the advantages of both kernel and
user-le...
To say that in the last fifteen years participatory research has bloomed is almost an understatement. Participatory forms of research are now accepted and well integrated in development practice, particularly in international development. Although this transformation has not been entirely smooth and without controversies, it represents quite a chan...
The authors present 27 cases of vertebral hydatidosis with clinical and laboratory findings. The most frequent location of the lesion was the lumbar spine. Principal neurological symptoms were paraparesis, sphincter disturbances, paresthesia and paraplegia. The average number of surgical interventions per patient was 2.6; the most common procedure...
A chemical study of the petroleum ether, ethanol and water extracts of Coryphantha palmeri and Echinocactus grandis afforded β–sitosterol in both plants, a tetracyclic triterpenoid and a crude alkaloid from C. palmeri and an aliphatic saturated tetrol, Ci7H36O4 and a polyhydroxylated steroid, C27H46O5 from the E. grandis. Both cacti contain galacto...
In this paper the control and supervision through Internet of a process managed by PLCs (Programmable Logic Controller) is presented. The proposed software architecture allows remote users to know the sensors state and to send control signals to process actuators, by means of a graphical interface that is accessible via a web browser. Also the remo...
The cartographic solutions are in continuous evolution with the new developments of space programs for high and very high space resolution sensors, such as QuickBird, Ikonos and secondarily Aster. The scene is instantaneous and faithful to the reality; these properties make it suitable in environment applications: risk forecast and analysis, natura...
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