Three-dimensional particle size and position measurement by linear complex amplitude Wiener filtering; 35473233

Digital in-line holography (DIH) combined with a Wiener filter has been applied to measure particle size and position in the flow inside a capillary model, seeded with magnetic particles (3µm) and with solid opaque particles that simulated red and white cells. The proposed filtering process takes advantage of the linearity implicit in the numerical reconstruction of the object complex amplitude. A modified DIH set-up, with a tilted illumination beam, was used as it presents two main advantages: it solves the twin image issue associated to in-line holography and increases the out-of-plane resolution. Experiments show that the proposed method discriminates particles within a range from 3 to 30µm with a sensitivity of 0.5µm. © 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreemen

Depression symptoms and mortality in elderly peruvian navy veterans: a retrospective cohort study

Abstract: Our study was design to determine the association between depressive symptoms and mortality in adults over 60 years old Navy Peruvian Veterans. We performed a retrospective cohort study based on a previous cohort study. A total of 1681 patients over 60 years old were included between 2010–2015. Demographic information, self-reported information about falls, physical frailty assessment, tobacco consumption, hypertension, Type 2 Diabetes Mellitus, Chronic Obstructive Pulmonary Disease and was collected. Depression was assessed by the short form of the Geriatric Depression Scale. We found that depressive symptoms were present in 24.9% of the participants and 40.5% of them died. Mortality risk in patients with depressive symptoms, physical frailty, and male sex was: RR of 23.1 (95% CI: 11.7–45.7), 3.84 (95% CI: 2.16–6.82), and 1.37 (95% CI: 1.07–1.75) respectively. We concluded that depressive symptoms in Peruvian retired military personnel and their immediate relatives are high and are significatively associated with mortality. Also, being male and frail was associated with an increased risk of death. This reinforces that early detection and assessment of depressive symptoms could be an opportunity to improve the health status of older adults

DISEÑO DEL PULSO ÓPTIMO DE RIEGO EN EL CULTIVO DE FRESA CON EL MODELO NUMÉRICO HYDRUS 2D

[ES] El cultivo intensivo de fresa, que se desarrolla en macrotúneles de plástico sobre lomos acolchados, demanda volúmenes importantes de agua para satisfacer las necesidades hídricas del cultivo así como para labores de preparación del suelo o alomado y riego de apoyo en la fase de plantación. El riego de la fresa es especialmente complejo dado que es un cultivo que se produce bajo plástico en suelos muy arenosos (habitualmente con un contenido de arena superior al 90%), con escasa capacidad de retención de agua. A pesar de esta dificultad, no es habitual que exista una programación del riego basada en la medida de las principales variables que afectan al cálculo de las necesidades hídricas del cultivo. En este trabajo se proponen medidas de mejora en el manejo del riego, basadas en la determinación del pulso óptimo que evite las pérdidas por percolación en tres fases de desarrollo del cultivo. Para ello se ha utilizado el modelo de simulación del movimiento del agua en el suelo Hydrus 2D. Se han simulado diferentes estrategias de riego para aplicar la ETc del cultivo con emisores de 5 l.h-1.m en tres etapas diferentes del cultivo, inicio, mediados, y final de campaña y en las que por término medio se necesitan tiempos de riego que oscilan entre los 10-20 minutos al inicio de la campaña y 40-60 minutos al final de campañaGarcía Morillo, J.; Rodríguez-Díaz, J.; Martín Arroyo, M.; Camacho Poyato, E.; Montesinos Barrios, P. (2015). DISEÑO DEL PULSO ÓPTIMO DE RIEGO EN EL CULTIVO DE FRESA CON EL MODELO NUMÉRICO HYDRUS 2D. En XXXIII CONGRESO NACIONAL DE RIEGOS. Valencia 16-18 junio de 2015. Editorial Universitat Politècnica de València. https://doi.org/10.4995/CNRiegos.2015.1472OC

The scope of language contact as a constraint factor in language change: The periphrasis haber de plus infinitive in a corpus of language immediacy in modern Spanish

In this work an empirical study grounded in the principles and methods of the comparative variationist framework is conducted to measure the scope of language contact as a factor constraining some potentially diverging uses of a Spanish verbal periphrasis that has undergone a sharp decline over the last century (haber de plus infinitive). The analysis is based on three independent samples of text that correspond to three dialectal areas of peninsular Spanish (monolingual zones, Catalan-speaking linguistic territories and the north-western linguistic area). These samples, extracted from a corpus made up of texts of communicative immediacy from the 19th and the first half of the 20th centuries, confirm the existence of a certain linguistic convergence in the expressive habits of the speakers in the bilingual communities. In each region, however, the outcomes are different, due to parallel differences in the structural position of the periphrasis in each language. However, a thorough analysis of the variable context that surrounds the periphrasis shows that the observed differences do not affect the essence of the underlying grammar of this variant, whose decline (which favours tener que plus infinitive and becomes faster as the 20th century advances) is constrained by identical linguistic and extralinguistic conditioning factors in all the dialectal areas

EL RIEGO DE PRECISIÓN EN EL CULTIVO DE FRESA EN LA PROVINCIA DE HUELVA

[ES] El cultivo de fresa es el cultivo con mayor repercusión económica y social de la provincia de Huelva, ya que España es el principal productor de fresa fresca de Europa y el segundo del mundo, situándose el 95% de esa producción en la provincia de Huelva. Sin embargo, la zona donde se desarrolla el cultivo, el entorno del Parque Nacional de Doñana, es una de las zonas de mayor sensibilidad ambiental de Europa y cualquier actividad que se desarrolle debe evitar impactos negativos en el mismo. De lo anterior se deduce la necesidad de buscar un equilibrio para que agricultura y medio ambiente puedan convivir en el entorno de Doñana. Este trabajo se centra precisamente en eso, en optimizar el uso del agua en la zona mediante la implantación del riego de precisión en el cultivo de fresa, que consiste en dar a la planta el agua que necesita en el momento adecuado. La implantación de un sistema de riego de precisión se ha llevado a cabo en la campaña 2013/2014 en una finca comercial de la zona Almonte-El Rocío, provincia de Huelva. Para ello se ha implantado un ensayo en 5 sectores distintos, cada uno con un tipo de emisor diferente, en el que se realizó una programación óptima del riego basada en el cálculo de las necesidades teóricas del cultivo, el análisis hidráulico del sector y el movimiento del agua en el suelo, y cuyo comportamiento se comparó con un sector testigo manejado por el agricultor. Estas técnicas permitieron ahorrar un 43% de agua, en las condiciones particulares de suelo, variedad y configuración de la red riego de la finca de ensayo, obteniéndose un ligero aumento de producción respecto al manejo tradicional del agricultor, lo que se tradujo en un incremento de la rentabilidad del cultivo y de una mejora de la sostenibilidad en la producción intensiva de fresas.Martín Arroyo, M.; Fernandez García, I.; Gonzalez Perea, R.; García Morillo, J.; Rodríguez Díaz, J.; Camacho Poyato, E.; Montesinos Barrios, P. (2015). EL RIEGO DE PRECISIÓN EN EL CULTIVO DE FRESA EN LA PROVINCIA DE HUELVA. En XXXIII CONGRESO NACIONAL DE RIEGOS. Valencia 16-18 junio de 2015. Editorial Universitat Politècnica de València. https://doi.org/10.4995/CNRiegos.2015.1462OC

Association Between the Use of a Mobile Health Strategy App and Biological Changes in Breast Cancer Survivors: Prospective Pre-Post Study

The objectives of this study were to: (1) check whether it is feasible to find changes in inflammation biomarkers through an mHealth strategy app as a delivery mechanism of an intervention to monitor energy balance; and (2) discover potential predictors of change of these markers in breast cancer survivors (BCSs). Analyzing changes in inflammatory biomarker concentrations after using the mHealth app, differences between preassessment CRP (4899.04 pg/ml; SD 1085.25) and IL-6 (87.15 pg/ml; SD 33.59) and postassessment CRP (4221.24 pg/ml; SD 911.55) and IL-6 (60.53 pg/ml; SD 36.31) showed a significant decrease in both markers, with a mean difference of –635.25 pg/ml (95% CI –935.65 to –334.85; P<.001) in CRP and –26.61 pg/ml (95% CI –42.51 to –10.71; P=.002) in IL-6. Stepwise regression analyses revealed that changes in global quality of life, as well as uMARS score and hormonal therapy, were possible predictors of change in CRP concentration after using the mHealth app. In the same way, the type of tumor removal surgery conducted, as well as changes in weight and pain score, were possible predictors of change in IL-6 concentration after using the app. In conclusion, through the results of this study, we hypothesize that there is a possible association between an mHealth energy balance monitoring strategy and biological changes in BCSs. These changes could be explained by different biopsychosocial parameters, such as the use of the application itself, quality of life, pain, type of tumor removal surgery, hormonal treatment or obesity.The study was funded by the Spanish Ministry of Economy and Competitiveness (Plan Estatal de I+D+I 2013-2016), Fondo de Investigación Sanitaria del Instituto de Salud Carlos III (PI14/01627), Fondos Estructurales de la Unión Europea (FEDER), and by the Spanish Ministry of Education (FPU14/01069 and FPU17/00939)

Cortical thinning over two years after first-episode psychosis depends on age of onset

First-episode psychosis (FEP) patients show structural brain abnormalities at the first episode. Whether the cortical changes that follow a FEP are progressive and whether age at onset modulates these changes remains unclear. This is a multicenter MRI study in a deeply phenotyped sample of 74 FEP patients with a wide age range at onset (15-35 years) and 64 neurotypical healthy controls (HC). All participants underwent two MRI scans with a 2-year follow-up interval. We computed the longitudinal percentage of change (PC) for cortical thickness (CT), surface area (CSA) and volume (CV) for frontal, temporal, parietal and occipital lobes. We used general linear models to assess group differences in PC as a function of age at FEP. We conducted post-hoc analyses for metrics where PC differed as a function of age at onset. We found a significant age-by-diagnosis interaction effect for PC of temporal lobe CT (d = 0.54; p = 002). In a post-hoc-analysis, adolescent-onset (≤19 y) FEP showed more severe longitudinal cortical thinning in the temporal lobe than adolescent HC. We did not find this difference in adult-onset FEP compared to adult HC. Our study suggests that, in individuals with psychosis, CT changes that follow the FEP are dependent on the age at first episode, with those with an earlier onset showing more pronounced cortical thinning in the temporal lobe