513 resultados para Whitehead


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The Dahlgren and Whitehead ecological theory provides the framework for a cross-sectional design to compare socio-demographic characteristics, living and working conditions, and lifestyle daily habits as well as cultural and ecological factors among six diabetic multiethnic Black groups in Miami and Abidjan. Approximately 180 Black Americans (African-, Caribbean-, and Haitian-) and 180 Black Africans (Akan, Malinke, and Krou) aged 20 years and older were surveyed. During the preliminary of this study participants' attitudes and behaviors were qualitatively assessed (N=60) and a tool was developed to describe, in the main study (N=360), differences in participants' strength of commitment to diabetes lifestyle self-management. Despite similarities found in terms of age and gender, statistically significant differences were also found within and among groups in terms of living and working conditions, education level, and religion. African American groups were more likely to participate in more diabetes classes than Haitian Americans and Caribbean Americans. However, African Americans were less likely to adhere to daily dietary and weight control regimens. Although, Black African groups reported limited access to equipment, facilities, and financial support they were more likely to follow dietary and weight control recommendations than Black American groups. Overall, African American participants showed the poorest attitudes towards recommended foods, Caribbean American respondents reported the best attitudes and behaviors towards weight control regimens, and the Malinke group had significantly more strength of commitment to successful weight control. Furthermore, Black African groups had significantly more strength of commitment to successful dietary adherence and significantly less support for weight control than Black American groups. ^ Significant differences found within Black groups suggest that understanding each patient's conditions may help healthcare professionals in initiating individualized appropriate counseling before goal setting, and in developing culturally relevant type 2 diabetes management programs. Moreover, significant differences exist in strength of commitment to lifestyle adherence among Black groups in Miami and Abidjan. Cultural, socio-demographic factors and self-management habits may explain differences in participants' outcomes. At the policy level, Black groups should not be approached as a homogenous group and assessment of the vulnerability of each ethnic group may be necessary in the decision-making process.^

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Paper Presentation

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Abstract: This informative and interactive teaching symposium posits the Positive Peer Leadership Mentoring Program (PPLM) as an evidence-based wrap-around service for youth and families in Miami-Dade who are involved in the school-to-prison pipeline. Presenters first provide information to initiate the dialogic process of discerning and interpreting the school-to-prison pipeline, impacted by costs of incarceration for Black youth and families and the move toward effective mental health services in the juvenile justice system. Then, participants experience an interactive pedagogical mentoring format set forth in PPLM as the first step toward transforming the school-to-prison pipeline in their own classroom or other educational setting.

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The exponential growth of studies on the biological response to ocean acidification over the last few decades has generated a large amount of data. To facilitate data comparison, a data compilation hosted at the data publisher PANGAEA was initiated in 2008 and is updated on a regular basis (doi:10.1594/PANGAEA.149999). By January 2015, a total of 581 data sets (over 4 000 000 data points) from 539 papers had been archived. Here we present the developments of this data compilation five years since its first description by Nisumaa et al. (2010). Most of study sites from which data archived are still in the Northern Hemisphere and the number of archived data from studies from the Southern Hemisphere and polar oceans are still relatively low. Data from 60 studies that investigated the response of a mix of organisms or natural communities were all added after 2010, indicating a welcomed shift from the study of individual organisms to communities and ecosystems. The initial imbalance of considerably more data archived on calcification and primary production than on other processes has improved. There is also a clear tendency towards more data archived from multifactorial studies after 2010. For easier and more effective access to ocean acidification data, the ocean acidification community is strongly encouraged to contribute to the data archiving effort, and help develop standard vocabularies describing the variables and define best practices for archiving ocean acidification data.

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A Pliocene (2.6-3.5 Ma) age is determined from glacial sediments studied in a 20m long, 4 m deep trench excavated in Heidemann Valley, Vestfold Hills, East Antarctica. The age determination is based on a combined study of amino acid racemization, diatoms, foraminifera, and magnetic polarity, and supports earlier estimates of the age of the sedimentary section; all are beyond 14C range. Four till units are recognized and documented, and 16 subunits are identified. All are ascribed to deposition during a Late Pliocene glaciation that was probably the last time the entire Vestfold Hills was covered by an enlarged East Antarctic Ice Sheet (EAIS). Evidence for other more recent glacial events of the 'Vestfold Glaciation' may have been due to lateral expansion of the Sorsdal Glacier and limited expansion of the icesheet margin during the Last Glacial Maximum rather than a major expansion of the EAIS. The deposit appears to correlate with a marine deposition event recorded in Ocean Drilling Program Site 1166 in Prydz Bay, possibly with the Bardin Bluffs Formation of the Prince Charles Mountains and with part of the time represented in the ANDRILL AND-1B core in the Ross Sea.

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Morphological, anatomical and physiological plant and leaf traits of A. distorta, an endemic species of the Central Apennines on the Majella Massif, growing at 2,675 m a.s.l, were analyzed. The length of the phenological cycle starts immediately after the snowmelt at the end of May, lasting 128 ± 10 days. The low A. distorta height  (Hmax= 64 ± 4 mm) and total leaf area (TLA= 38 ± 9 cm2) associated to a high leaf mass area (LMA =11.8±0.6 mg cm−2) and a relatively high leaf tissue density (LTD = 124.6±14.3 mg cm−3) seem to be adaptive traits to the stress factors of the environment where it grows. From a physiological point of view, the high A. distorta photosynthetic rates (PN =19.6 ± 2.3 µmol m−2 s−1) and total chlorophyll content (Chla+b = 0.88 ± 0.13 mg g−1) in July are justified by the favorable temperature. PN decreases by 87% in September at the beginning of plant senescence. Photosynthesis and leaf respiration (RD) variations allow A. distorta to maintain a positive carbon balance during the growing season becoming indicative of the efficiency of plant carbon use. The results could be an important tool for conservation programmes of the A. distorta wild populations.

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The aim of this study was to determine the haematological value and biochemical blood in baby alpacas with enteric disorder. A total of 30 blood and serum samples were collected from alpacas of 1 month old with diarrhoea and 5 blood samples of clinically healthy baby alpacas (controls). The animals were from communities in the central Andes from Peru. About haematology were determined haematocrit, haemoglobin concentration, red blood count and white blood count that were not significantly different between control animals and animals with diarrhoea. Moreover, biochemical blood parameters as total protein, albumin and calcium decrease significantly (p<0.05). We conclude that our results could be considered as factors in the mortality of baby alpaca by infectious diarrhoea.

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Introduction: Point-of-care ultrasound (POCUS) use in clinical care is growing rapidly, and advocates have recently proposed the integration of ultrasound into undergraduate medical education (UME). The evidentiary basis for this integration has not been evaluated critically or systematically. In this study, we conducted a critical and systematic review framed by the rationales enumerated by advocates of ultrasound in UME in academic publications.

Methods: This research was conducted in two phases. First, the dominant discursive rationales for the integration of ultrasound in UME were identified using techniques from Foucauldian critical discourse analysis (CDA) from an archive of 403 academic publications. We then sought empirical evidence in support of theses rationales, using a critical synthesis methodology also adapted from CDA.

Results: We identified four dominant discursive rationales, with different levels of evidentiary support. Ultrasound was not demonstrated to improve students’ understanding of anatomy. The benefit of ultrasound in teaching physical examination was inconsistent,and rests on minimal evidence. With POCUS, students’ diagnostic accuracy was improved for certain pathologies, but findings were inconsistent for others. Finally, the rationale that ultrasound training in UME will improve quality of patient care was difficult to evaluate.

Discussion: Our analysis has shown that the frequently repeated rationales for the integration of ultrasound in UME are not supported by a sufficient base of empirical research. The repetition of these dominant discursive rationales in academic publications legitimizes them and may preclude further primary research. Since the value of clinical ultrasound use by medical students remains unproven, educators must consider whether the associated financial and temporal costs are justified or whether more research is required.

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In recent years the ‘affective turn’ has permeated the arts, humanities, social sciences, and psychology, but like any influential academic movement has not escaped critique. We outline and agree in general terms with the critique by Leys (2011b), which emphasises the influence of the basic emotion paradigm; the dualisms that accompany its deployment; and concerns regarding intentionality and meaning. We then propose an alternate approach to affect and feeling, derived from the philosophies of Whitehead and Langer; demonstrate how this avoids the endorsement of cognitivism to which Leys critique succumbs; illustrate the strengths of this approach with respect to analyses of former U.S. President Reagan; and highlight two strengths of affect theory which are compatible with it. We conclude that our approach closes the intentionality gap that Leys identifies whilst retaining a fruitful emphasis upon the affective realm.

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Background Many acute stroke trials have given neutral results. Sub-optimal statistical analyses may be failing to detect efficacy. Methods which take account of the ordinal nature of functional outcome data are more efficient. We compare sample size calculations for dichotomous and ordinal outcomes for use in stroke trials. Methods Data from stroke trials studying the effects of interventions known to positively or negatively alter functional outcome – Rankin Scale and Barthel Index – were assessed. Sample size was calculated using comparisons of proportions, means, medians (according to Payne), and ordinal data (according to Whitehead). The sample sizes gained from each method were compared using Friedman 2 way ANOVA. Results Fifty-five comparisons (54 173 patients) of active vs. control treatment were assessed. Estimated sample sizes differed significantly depending on the method of calculation (Po00001). The ordering of the methods showed that the ordinal method of Whitehead and comparison of means produced significantly lower sample sizes than the other methods. The ordinal data method on average reduced sample size by 28% (inter-quartile range 14–53%) compared with the comparison of proportions; however, a 22% increase in sample size was seen with the ordinal method for trials assessing thrombolysis. The comparison of medians method of Payne gave the largest sample sizes. Conclusions Choosing an ordinal rather than binary method of analysis allows most trials to be, on average, smaller by approximately 28% for a given statistical power. Smaller trial sample sizes may help by reducing time to completion, complexity, and financial expense. However, ordinal methods may not be optimal for interventions which both improve functional outcome

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This symposium will discuss the expansion of The Education Effect – Booker T. Washington, as a university community school partnership designed to engage urban youth for college and career readiness. The partnership is focused on developing collective impact and capacity for academic achievement, social success and college completion. The partnership aligns university expertise, resources and evidenced based strategies to address educational needs through the improvement of teaching and learning; increase graduation rate and parental involvement.

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Este trabajo rastrea el tratamiento dado a las categorías Actividad Física e Imagen Corporal en una selección de textos científicos del área de la salud; revisa la relación entre categorías y examina si en dichos textos son abordadas desde el enfoque de los Determinantes Sociales de la Salud o desde el enfoque de la Determinación Social de la Salud, usando la categoría de equidad como parámetro y explorando las implicaciones de ello. Su paradigma epistemológico es la construcción social del conocimiento y el eje metodológico el análisis de contenido. Los resultados muestran una construcción insipiente de las categorías, una relación diversa entre ellas y un privilegio del enfoque de los determinantes sociales de la salud en los textos académicos. Finalmente, el trabajo indaga sobre las implicaciones prácticas mediante un análisis de contenido de dos documentos de la OMS. Se concluye que en la práctica sí se reflejan las diferencias de enfoque.

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El presente trabajo analiza la definición de la categoría posición socioeconómica (PSE) y las variables con las cuales se representa en los productos académicos del campo de la actividad física, además de su relación con la categoría de imagen corporal. Para lograr el objetivo, se rastrean elementos que permiten dar cuenta si los documentos de investigación se abordan desde alguno de los dos contextos: determinantes (DDSS) o determinación social de la salud (DSS). Se inicia con un rastreo global por medio de los motores de búsqueda, las bases de datos y los repositorios institucionales. Posteriormente se parametriza la ruta, desde las categorías imagen corporal (IC) y PSE. Las investigaciones pretenden dar cuenta de la evaluación a 15 años del programa "Salud para Todos" de la ONU de 2001, en el marco de los Objetivos Del Milenio. Se revisaron resúmenes de los productos, descartando aquellos donde la categoría PSE o sus descriptores asociados tuvieran un papel secundario. Se limitó a Latinoamérica y España por su tradición histórica colonizadora; con el ánimo de conocer la postura de esta comunidad frente al proceso globalizado de la salud en el mundo. Al grupo final se le aplican criterios parametrizados a partir de la revisión teórica, para responder los interrogantes basados en las implicaciones que tiene la PSE en el pensamiento actual de la producción científica en el campo de la actividad física; y cómo las otras categorías de análisis se ven o no manifiestas. El índice de calidad científica CASPe, determina la pertinencia de los textos. En el aspecto teórico, se encuentra que la categoría PSE, a pesar de ser muy utilizada, tiene una conceptualización difusa. Por tal motivo, se propone una definición de PSE sustentada en el pensamiento sociológico. En el aspecto empírico, al rastrear las variables con que se reemplaza la PSE en las investigaciones, se encuentran grandes diferencias y el uso de múltiples y disímiles subcategorías.