Historia literaria : Historia de la literatura

Historia y Literatura son dos conceptos que han mantenido una relación prolongada y conflictiva. Aunque con anterioridad al siglo XVIII pueden señalarse bastantes acercamientos entre Historia y Literatura, la cultura moderna fue la que aproximó ambas nociones para originar una clase de actividad intelectual en la que la Literatura se incorporó a los presupuestos teóricos y técnicos de la Historia. Desde entonces se ha hablado de Historia literaria y de Historia de la literatura como disciplinas humanísticas cuyo estatuto epistemológico ha sido y es aún ampliamente discutido. Observar el proceso de constitución de la Historia literaria/Historia de la literatura en el plano especulativo y en su descripción histórica referida a la Literatura española es el objetivo de este libro, que reúne las comunicaciones presentadas en un seminario internacional celebrado en la Universidad de Zaragoza en abril del año 2003. Los diecinueve trabajos que forman el libro abordan con penetración y originalidad tres niveles distintos en los que se formalizan los problemas relativos a la Historia literaria: 1) sus fundamentos, 2) la revisión diacrónica del modo como se ha construido, 3) el análisis de determinadas prácticas institucionales que han obrado en la Historia de la Historia de la literatura española

Covid-19 pandemic impacts on follow-up of child growth and development

OBJECTIVE To analyze the impact of the covid-19 pandemic on the use of primary health care services to follow-up the child growth and development in Brazil. METHOD A total of 7.9 million consultations of children (0–2 years old) across Brazil between March 2017 and May 2020 were studied. Differences between medians were analyzed using non-parametric tests, the Global Moran Index (IGM) and the Local Indicators of Spatial Association. RESULTS During the initial period of the pandemic, the median number of consultations was significantly lower than the same period in previous years, reducing more than 50%. The drop in 2020, compared to 2019, ranged from 49% to 62.2% across all regions of the country, except the South. The percentage reduction registered in 2019–2020 showed significant spatial autocorrelation (IGM = 0.20; p = 0.04), with the presence of low-low (states with reduction between 29% and 51%) and high-high (states with reduction between 55% and 69%) spatial clusters. CONCLUSION The covid-19 pandemic impacted the follow-up of child growth and development in primary health care services in Brazil, with a geographically uneven reduction

Reading list: 15 recommended reads on colonial histories, colonial legacies

In this reading list, we recommend fifteen books previously reviewed on the LSE RB blog that critically explore the histories of imperialism, discuss the life and works of people who have contested colonialism and seek to better understand the legacies of empire in the present. If you would like to add to this list, please add your recommendations in the comments below

Anthropometric indicators associated with high blood pressure in children living in urban and rural areas

Objective: to evaluate anthropometric and demographic indicators associated with high blood pressure in children aged 6 to 10 years in urban and rural areas of Minas Gerais. Method: this is a cross-sectional study with 335 children. Anthropometric, demographic and blood pressure data were collected. The statistics analyzes were performed using the chi-square, t-student, Mann-Whitney and logistic regression tests, and the odds ratio was the association measure. Results: the prevalence of high blood pressure was significantly higher among rural children. In the urban area, the chance of high blood pressure was higher in children who had a high body mass index (2.97 [1.13-7.67]) and in the rural area, in those who had increased waist circumference (35.4 [3.0-406.2]) and the age range of 9-10 years (4.29 [1.46-12.6]). Conclusion: elevated body mass index and waist circumference were important anthropometric indicators for high blood pressure, as well as age in children living in rural area. The evaluation of body mass index and waist circumference, in addition to nutritional assessments, represents an important action for the screening of high blood pressure in children from different territorial contexts.Objetivo: evaluar los indicadores antropométricos y demográficos asociados a la presión arterial elevada de niños entre 6 y 10 años de edad en zonas urbana y rurale de Minas Gerais. Método: se trata de un estudio transversal realizado entre 335 niños. Se recopilaron datos antropométricos, demográficos y de presión arterial. Los análisis se realizaron con las pruebas de Chi-cuadrado, t de Student, Mann-Whitney y regresión logística, considerando el odds ratio como medida de asociación. Resultados: la prevalencia de la presión arterial elevada era significativamente más alta entre los niños de las zonas rurales. En la zona urbana, la probabilidad era mayor en los niños con índice alto de masa corporal [2,97(1,13-7,67)] y en la zona rural, en los que tenían más perímetro de cintura [35,4(3,0-406,2)] y grupo de edad de 9-10 años [4,29(1,46-12,6)]. Conclusión: el índice de masa corporal y la circunferencia de la cintura altos fueron indicadores antropométricos importantes para la presión arterial elevada, así como la edad en niños residentes de la zona rural. La evaluación del índice de masa corporal y del perímetro de la cintura, además de las evaluaciones nutricionales, son factores importantes para el sondeo de la hipertensión arterial en niños de diferentes contextos territoriales.Objetivo: avaliar indicadores antropométricos e demográficos associados à pressão arterial elevada em crianças de 6 a 10 anos de idade de áreas urbana e rural de Minas Gerais. Método: estudo transversal realizado com 335 crianças. Foram coletados dados antropométricos, demográficos e de pressão arterial. As análises foram realizadas por meio dos testes Qui-quadrado, t student, Mann-Whitney e regressão logística, com cálculo do odds ratio como medida de associação. Resultados: a prevalência de pressão arterial elevada foi significativamente maior entre as crianças da área rural. Na área urbana, a chance de pressão arterial elevada foi maior nas crianças que possuíam o índice de massa corporal elevado (2,97 [1,13-7,67]) e, na área rural, naquelas que possuíam a circunferência da cintura aumentada (35,4 [3,0-406,2]) e faixa etária de 9-10 anos (4,29 [1,46-12,6]). Conclusão: o índice de massa corporal e a circunferência da cintura elevados foram importantes indicadores antropométricos para a pressão arterial elevada, assim como a idade em crianças residentes na área rural. A avaliação do índice de massa corporal e da circunferência da cintura, para além das avaliações nutricionais, representa importante ação para o rastreio de pressão arterial elevada em crianças de diferentes contextos territoriais

Features of the normal choriocapillaris with OCT-angiography: Density estimation and textural properties

The main objective of our work is to perform an in depth analysis of the structural features of normal choriocapillaris imaged with OCT Angiography. Specifically, we provide an optimal radius for a circular Region of Interest (ROI) to obtain a stable estimate of the subfoveal choriocapillaris density and characterize its textural properties using Markov Random Fields. On each binarized image of the choriocapillaris OCT Angiography we performed simulated measurements of the subfoveal choriocapillaris densities with circular Regions of Interest (ROIs) of different radii and with small random displacements from the center of the Foveal Avascular Zone (FAZ). We then calculated the variability of the density measure with different ROI radii. We then characterized the textural features of choriocapillaris binary images by estimating the parameters of an Ising model. For each image we calculated the Optimal Radius (OR) as the minimum ROI radius required to obtain a standard deviation in the simulation below 0.01. The density measured with the individual OR was 0.52 ± 0.07 (mean ± STD). Similar density values (0.51 ± 0.07) were obtained using a fixed ROI radius of 450 μm. The Ising model yielded two parameter estimates (β = 0.34 ± 0.03; γ = 0.003 ± 0.012; mean ± STD), characterizing pixel clustering and white pixel density respectively. Using the estimated parameters to synthetize new random textures via simulation we obtained a good reproduction of the original choriocapillaris structural features and density. In conclusion, we developed an extensive characterization of the normal subfoveal choriocapillaris that might be used for flow analysis and applied to the investigation pathological alterations

Violation of the fluctuation-dissipation theorem in glassy systems: basic notions and the numerical evidence

This review reports on the research done during the past years on violations of the fluctuation-dissipation theorem (FDT) in glassy systems. It is focused on the existence of a quasi-fluctuation-dissipation theorem (QFDT) in glassy systems and the currently supporting knowledge gained from numerical simulation studies. It covers a broad range of non-stationary aging and stationary driven systems such as structural-glasses, spin-glasses, coarsening systems, ferromagnetic models at criticality, trap models, models with entropy barriers, kinetically constrained models, sheared systems and granular media. The review is divided into four main parts: 1) An introductory section explaining basic notions related to the existence of the FDT in equilibrium and its possible extension to the glassy regime (QFDT), 2) A description of the basic analytical tools and results derived in the framework of some exactly solvable models, 3) A detailed report of the current evidence in favour of the QFDT and 4) A brief digression on the experimental evidence in its favour. This review is intended for inexpert readers who want to learn about the basic notions and concepts related to the existence of the QFDT as well as for the more expert readers who may be interested in more specific results.Comment: 120 pages, 37 figures. Topical review paper . Several typos and misprints corrected, new references included and others updated. to be published in J. Phys. A (Math. Gen.

Fractionation of impulsive and compulsive trans-diagnostic phenotypes and their longitudinal associations.

OBJECTIVE: Young adulthood is a crucial neurodevelopmental period during which impulsive and compulsive problem behaviours commonly emerge. While traditionally considered diametrically opposed, impulsive and compulsive symptoms tend to co-occur. The objectives of this study were as follows: (a) to identify the optimal trans-diagnostic structural framework for measuring impulsive and compulsive problem behaviours, and (b) to use this optimal framework to identify common/distinct antecedents of these latent phenotypes. METHOD: In total, 654 young adults were recruited as part of the Neuroscience in Psychiatry Network, a population-based cohort in the United Kingdom. The optimal trans-diagnostic structural model capturing 33 types of impulsive and compulsive problem behaviours was identified. Baseline predictors of subsequent impulsive and compulsive trans-diagnostic phenotypes were characterised, along with cross-sectional associations, using partial least squares. RESULTS: Current problem behaviours were optimally explained by a bi-factor model, which yielded dissociable measures of impulsivity and compulsivity, as well as a general disinhibition factor. Impulsive problem behaviours were significantly explained by prior antisocial and impulsive personality traits, male gender, general distress, perceived dysfunctional parenting and teasing/arguments within friendships. Compulsive problem behaviours were significantly explained by prior compulsive traits and female gender. CONCLUSION: This study demonstrates that trans-diagnostic phenotypes of 33 impulsive and compulsive problem behaviours are identifiable in young adults, utilising a bi-factor model based on responses to a single questionnaire. Furthermore, these phenotypes have different antecedents. The findings yield a new framework for fractionating impulsivity and compulsivity, and suggest different early intervention targets to avert emergence of problem behaviours. This framework may be useful for future biological and clinical dissection of impulsivity and compulsivity

Unc5B Interacts with FLRT3 and Rnd1 to Modulate Cell Adhesion in Xenopus Embryos

The FLRT family of transmembrane proteins has been implicated in the regulation of FGF signalling, neurite outgrowth, homotypic cell sorting and cadherin-mediated adhesion. In an expression screen we identified the Netrin receptors Unc5B and Unc5D as high-affinity FLRT3 interactors. Upon overexpression, Unc5B phenocopies FLRT3 and both proteins synergize in inducing cell deadhesion in Xenopus embryos. Morpholino knock-downs of Unc5B and FLRT3 synergistically affect Xenopus development and induce morphogenetic defects. The small GTPase Rnd1, which transmits FLRT3 deadhesion activity, physically and functionally interacts with Unc5B, and mediates its effect on cell adhesion. The results suggest that FLRT3, Unc5B and Rnd1 proteins interact to modulate cell adhesion in early Xenopus development