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Search Results: 1 - 10 of 9331 matches for " Regina Nieves "
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Assessing Hospital Readmission Risk Factors in Heart Failure Patients Enrolled in a Telemonitoring Program
Adrian H. Zai,Jeremiah G. Ronquillo,Regina Nieves,Henry C. Chueh,Joseph C. Kvedar,Kamal Jethwani
International Journal of Telemedicine and Applications , 2013, DOI: 10.1155/2013/305819
Abstract: The purpose of this study was to validate a previously developed heart failure readmission predictive algorithm based on psychosocial factors, develop a new model based on patient-reported symptoms from a telemonitoring program, and assess the impact of weight fluctuations and other factors on hospital readmission. Clinical, demographic, and telemonitoring data was collected from 100 patients enrolled in the Partners Connected Cardiac Care Program between July 2008 and November 2011. 38% of study participants were readmitted to the hospital within 30 days. Ten different heart-failure-related symptoms were reported 17,389 times, with the top three contributing approximately 50% of the volume. The psychosocial readmission model yielded an AUC of 0.67, along with sensitivity 0.87, specificity 0.32, positive predictive value 0.44, and negative predictive value 0.8 at a cutoff value of 0.30. In summary, hospital readmission models based on psychosocial characteristics, standardized changes in weight, or patient-reported symptoms can be developed and validated in heart failure patients participating in an institutional telemonitoring program. However, more robust models will need to be developed that use a comprehensive set of factors in order to have a significant impact on population health. 1. Introduction Several predictive models can identify the risk status of patients with heart failure [1]. However, predictors used in those models are often not actionable, as they are typically based on demographic (e.g., age, race/ethnicity) or clinical data (e.g., medical history, billing or laboratory data). In our previous work, we aimed to identify a subset of high-risk patients with reversible risk factors, as our goal was to prevent their readmission by connecting those patients to appropriate interventions. Since psychosocial factors might be a root cause for cardiac decompensation, we set ourselves to develop a multivariable logistic regression model based on psychosocial predictors [2]. In that work, we identified 5 psychosocial predictors “dementia,” “depression,” “adherence,” “declining/refusal of services,” and “missed clinical appointments” as significant predictors of readmission [2]. Similarly, patient-reported symptoms and other factors collected by a telemonitoring system could potentially serve as reversible predictors to eventually strengthen our original model. In fact, body weight gain among heart failure patients is already a known factor linked to early readmissions [3]. Telemonitoring is a promising innovation that allows clinicians to monitor
La atracción turística de un espacio mítico: peregrinación al cabo de Finisterre
Herrero, Nieves
PASOS : Revista de Turismo y Patrimonio Cultural , 2009,
Abstract: This article analyzes the production of the “sense of place” of Finisterre - Cape situated in the Autonomous Community of Galicia (Spain) - and the way it is used to promote its namesake village as a tourist destination. The essay highlights the global and local factors as well as the plurality of social actors that intervene in this process and their different interests and actions. Moreover, it shows the role played in this by the mythic narrative created by the forerunners of the Galician nationalist tradition who identified Galicia as an Atlantic Land′s End. This narrative allowed actors to propose this village as the goal of the pilgrimage to Saint James of Compostela so that it could benefit from the tourist promotion of Galicia largely based on the cultural heritage of the Pilgrim′s Way. The meaning of this place today is related to a secularised experience of the pilgrimage and to the pilgrims ritual practices inspired in the aforesaid myth.
Verticillium-induced Wilt in Pepper: Physiological Disorders and Perspectives for Controlling the Disease
Nieves Goicoechea
Plant Pathology Journal , 2006,
Abstract: Verticillium wilt of pepper is mainly caused by Verticillium dahliae Klebahn. This pathogen alters physiology of infected plants, accelerates their senescence and reduces yield. The decrease in photosynthesis and consequently, in the supply of carbohydrates to forming fruits, together with a premature fall of flowers are related to the limited fruit yield observed in diseased plants. The control of V. dahliae is difficult because it can survive in field soil for several years. For intensively managed pepper, it has been usual to fumigate with methyl bromide prior to planting. However, as this chemical product causes environmental contamination and reduces the diversity of the microflora in the treated soil, its use was phased out under the 1992 Montreal Protocol. Therefore, finding alternative methods becomes essential for agriculture. At present, an integrated management of the crop would be the best strategy to preserve pepper from Verticillium-induced wilt. Such management should include the use of the less susceptible pepper cultivars, the most adequate culture practices and the exploitation of soil symbiotic microorganisms as bioprotectors. More research on the defence signalling pathways and molecular mechanisms employed by plants against pathogens may lead to novel strategies to enhance disease resistance in crop plants, including pepper.
Arte de género: cuerpos profanados y fenómenos andróginos
Nieves Febrer
Revista Observaciones Filosóficas , 2009,
Abstract: In the present test we analyze different discourse of genre contextualized inside the contemporary feminist art. Along the following pages, we have selected a series of works realized by artists women, investigating the image that the genre occupies in her works, in order to complement, to facilitate and to go deeply into the comprehension and reflection of the same one. We think that far from being an exhausted topic, they come together in it great quantity of debates of cultural and social, political and historical interest.
Los diálogos lucianescos de Francisco Sobrino
Nieves Arribas
Enthymema , 2010, DOI: 10.6092/2037-2426/761
Abstract: En 1708, el impresor Fran ois Foppens publica en Bruselas los Dialogues Nouveaux [...] de Francisco Sobrino, un oficial reformado y maestro de Corte que plagia, incrementándola, la colección de César Oudin (Dialogos muy apazibles [...] Marc Orry, 1608), quien a su vez había hecho lo propio con los siete de John Minsheu (Pleasant and Delightfull Dialogues, Londres, 1599) en una de la líneas editoriales más importantes, paralela a la de otras constelaciones (como la inaugurada por Noel de Berlaimont) de la riquísima tradición paneuropea de coloquios didácticos creados para dar muestras de conversacionalidad a quienes desearan aprender segundas lenguas. De los seis diálogos originales de Sobrino, cuatro son fantasiosos y de éstos, hay tres lucianescos en el sentido de que usan la ‘estrategia de Luciano’ pues sus interlocutores son personajes muertos (Mahoma, Colón, Moctezuma, etc.). Será trazado aquí un análisis de las características de los mismos, con especial atención a los componentes didácticos e ideológicos.
Rese a de "Memories and Migrations: Mapping Boricua & Chicana Histories" de Vicki L. Ruiz and John R. Chávez
Yolanda Nieves
Centro Journal , 2009,
Renormalization of the 1S0 One-Pion-Exchange NN Interaction in Presence of Derivative Contact Interactions
J. Nieves
Physics , 2003, DOI: 10.1016/j.physletb.2003.05.009
Abstract: We use standard distorted wave theory techniques and dimensional regularization to find out solutions of the nucleon-nucleon Lippman--Schwinger equation with a kernel determined by the Weinberg's next-to-leading potential, which consists of one--pion exchange and additional contact terms with derivatives. Though for simplicity, we restrict the discussion to the $^1S_0$ channel and to contact terms containing up to two derivatives, the generalization to higher waves and/or number of derivatives is straightforward. The undetermined low energy constants emerging out of the renormalization procedure are fitted to data.
Simple Linear Model of Tumor Growth in a Changing Environment  [PDF]
Jose F. Nieves, Marcelo R. Ubriaco
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.67104
Abstract: In an environment that is neither static nor in equilibrium, but is dynamic and changing, the kinetics of the reactions that cause the growth of a tumor, which depend on the state of the evolving environment, cannot be parametrized in terms of constant rates. We propose a simple model for describing the growth on an untreated tumor in such environments, which is characterized by a minimal number of parameters and is generalizable to include the effects of various types of therapies. In the simplest version that we consider here, it consists of a linear equation with a time-dependent growth rate, which we interpret as the coupling of the system with a dynamic environment. A complete solution is given in terms of the integral of the growth rate. The essential features of the general solution are illustrated with a few examples, and comparison is made with the models that have been proposed to describe recent data.
Alberto Fuguet, un (in)digno descendiente de una buena tradición
Alonso,María Nieves;
Acta literaria , 2004, DOI: 10.4067/S0717-68482004002900002
Abstract: mala onda (1993) forms part of a corpus of chilean novels of learning (bildungsroman) and of the formation of the hero. within this group novels like martin rivas (1861) by blest gana and hijo de ladrón (1951) by manuel rojas stand out, due to their creation of paradigmatic and exemplary tales and characters. the interrogatory character, the constant irony, the selected model of agency, the structure and contents of the story, and the forms of discourse of fuguet?s novel subvert the above mentioned models, historicizing a myth of the chilean novel, parodying canonical discourse and problematizing the drawing room or salon, a privileged space in previous novels already subverted by donoso and eltit, and desacralizing the scheme of the canonical family novel, positively and negatively, but always in a univocal form, with the power, the knowledge and the figure of the father
Ciencia y desarrollo turístico en México
Gómez Nieves,Salvador;
Estudios y perspectivas en turismo , 2008,
Abstract: it has been established that education, science and technology go hand in hand with development. however, the lack of scientific knowledge related to tourism in mexico and the simulation and forgery that prevails in this field due to scientific illiteracy are the main causes of the lack of feasible alternatives to the tourism development model that dominates in the country. this paper intends to persuade researchers in this field to be more predisposed towards social sciences, it is to say, to be better informed about the methodological and theoretical contributions in these field.
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