Simulation of a solar funnel cooker using MATLAB

A software for the calculation of the radiation heat transfer in solar funnel cookers by means of the radiosity method has been developed in Matlab. The software has been used to study a folding solar cooker. The cooker geometry is discretized using a triangular mesh where a piecewise constant approximation is assumed for the radiosity function. Form factors, including self-occlusions, are calculated by properly refining the triangular mesh. The concentration factor of the solar cooker is estimated as a function of its position and orientation with respect to that of the Sun.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Oral health and depressive symptoms: findings from the English Longitudinal Study of Ageing

Aim We assessed the cross-sectional association between depressive symptoms and oral health using a nationally representative sample of older adults aged 50 years and older living in England.Methods Data came from wave 7 (2014-2015) of the English Longitudinal Study of Ageing. Multiple logistic regression analyses were conducted to assess the association between depressive symptoms, measured through the eight-item Centre for Epidemiologic Studies Depression Scale and three oral health outcomes, namely self-rated oral health, edentulousness and oral impacts.Results The analytical sample comprised 3,617 individuals. The proportion of participants that reported poor self-rated oral health, being edentate and having at least one oral health impact in the last six months was 19.8%, 7.7% and 8.9%, respectively. Around a tenth of the participants reported having depressive symptoms (10%). All unadjusted associations between depressive symptoms and the oral health measures were statistically significant. However, after accounting for potential confounders, only the relationship between depressive symptoms and self-rated oral health remained significant (OR = 1.38; 95% CI 1.01-1.89). Socioeconomic and general health-related variables appeared to influence the associations between depressive symptoms and oral health, particularly edentulousness and oral impacts.Conclusion Depressive symptoms were associated with poor self-rated oral health in older English adults

Dermatosis autoinmunes en caninos. Estudio retrospectivo

A retrospective study of canine skin samples diagnosed with autoimmune disease, admitted by the Veterinary Special Pathology Laboratory, was conducted between 2004 and 2016. Purposes of the study were to identify canine cases of skin lesions and to select those with a diagnosis of autoimmune disease. Autoimmune skin diseases were related to race, age, sex, type and anatomical location of the clinical lesions and, finally, different histopathological lesions characterizing each disease. Autoimmune diseases accounted for 2.07% of the total number of cases admitted in the study period, the most frequent being pemphigus foliaceus and discoid lupus erythematosus. The purebred dogs were more affected than the mixed animals, being the anatomical location of greater presentation the dorsal region of the nose (35.3%). Among the most frequent histopathological findings were pustules (54.1%), areas of dermo-epidermal separation (45.9%) and spongiosis (44.7%). Although the percentage of canines with autoimmune dermatosis is low, it is important to include differential diagnoses of the diseases that occur with pustules, papules, vesicles and inflammatory infiltrate in the dermoepidermal junction. Histopathology is a useful and accessible tool in that allows to diagnose these diseases.Se investigaron muestras de piel de caninos con diagnóstico de enfermedad autoinmune ingresadas entre los años 2004 y 2016 al Laboratorio de Patología Especial Veterinaria (FCV, La Plata, Argentina). Los objetivos fueron identificar casos de caninos con lesiones cutáneas y seleccionar aquéllos con diagnóstico de enfermedad autoinmune. También se propuso relacionar las dermatosis autoinmunes con la raza, edad, sexo, el tipo y la ubicación anatómica de las lesiones clínicas y, por ultimo, describir las diferentes lesiones histopatológicas que caracterizaron cada afección. Las enfermedades autoinmunes representaron el 2,07% del total de casos ingresados en el período de estudio, siendo las más frecuentes el pénfigo foliáceo y el lupus eritematoso discoide. Los caninos de raza pura fueron más afectados que los mestizos, siendo la región dorsal de la nariz la ubicación anatómica de mayor presentación (35,3%). Entre los hallazgos histopatológicos más reiterados se observaron pústulas (54,1%), áreas de separación dermoepidérmica (45,9%) y espongiosis (44,7%). Si bien el porcentaje de caninos con dermatosis autoinmunes es bajo, es importante incluirlas dentro de los diagnósticos diferenciales de las enfermedades que cursan con pústulas, pápulas, vesículas e infiltrado inflamatorio en la unión dermoepidérmica. La histopatología es una herramienta útil y relativamente accesible en nuestro medio, que permite arribar al diagnóstico de tales enfermedades

Metabolomic Heterogeneity of Pulmonary Arterial Hypertension

published_or_final_versio

Enabling symmetric collaboration in public spaces through 3D mobile interaction

Collaboration has been common in workplaces in various engineering settings and in ourdaily activities. However, how to effectively engage collaborators with collaborative tasks has long been an issue due to various situational and technical constraints. The research in this paper addresses the issue in a specific scenario, which is how to enable users to interact with public information from their own perspective. We describe a 3D mobile interaction technique that allows users to collaborate with other people by creating a symmetric and collaborative ambience. This in turn can increase their engagement with public displays. In order to better understand the benefits and limitations of this technique, we conducted a usability study with a total of 40 participants. The results indicate that the 3D mobile interaction technique promotes collaboration between users and also improves their engagement with the public displays

Enabling symmetric collaboration in public spaces through 3D mobile interaction

© 2018 by the authors. Collaboration has been common in workplaces in various engineering settings and in our daily activities. However, how to effectively engage collaborators with collaborative tasks has long been an issue due to various situational and technical constraints. The research in this paper addresses the issue in a specific scenario, which is how to enable users to interact with public information from their own perspective. We describe a 3D mobile interaction technique that allows users to collaborate with other people by creating a symmetric and collaborative ambience. This in turn can increase their engagement with public displays. In order to better understand the benefits and limitations of this technique, we conducted a usability study with a total of 40 participants. The results indicate that the 3D mobile interaction technique promotes collaboration between users and also improves their engagement with the public displays

Prevalence and molecular identification of zoonotic Anisakis and Pseudoterranova species in fish destined to human consumption in Chile

Zoonotic larvae of the family Anisakidae found in several fish species represent a serious risk in public health since they may cause food-borne anisakidosis in humans. Chile has culinary preferences including eating raw fish in many traditional preparations. In the present study, a total of 180 fish specimens representing three different fish species, i.e., Chilean hake (Merluccius gayi), snoek (Thyrsites atun), and sea bream (Brama australis), were caught at central coast of Chile. Parasitological examination was performed on musculature and abdominal cavity for subsequent extraction and quantification of anisakid larvae. Estimation of infection parameters, such as prevalence, was performed indicating 100% (CI: 0.94-1.0) prevalence of anisakid L3 in Chilean hakes and snoeks. Moreover, sea breams reached a prevalence of 35% (CI: 0.23-0.48). Prevalence of anisakid larvae in muscle was also analyzed showing values of 18.6% (CI: 0.097-0.309) in Chilean hakes, 15% (CI: 0.07-0.26) in snoeks, and 1.7% (CI: 0-0.089) in sea breams. Meanwhile, prevalence of anisakid larvae in internal organs showed highest values for peritoneum (100% and 83.3%) for snoeks and Chilean hakes, respectively, for liver (96.7%) and gonads (86.6%) in Chilean hakes, and for intestine (98.3%) in snoeks. Molecular analysis of collected anisakid L3 unveiled presence of two potentially zoonotic nematode species, i.e., Pseudoterranova cattani and Anisakis pegreffii. P. cattani was found in Chilean hakes and snoeks being the first molecular host species report for Chilean snoeks. Besides, A. pegreffii was also identified in these species being the first molecular report on this regard. These findings are relevant for better understanding of epidemiology of anisakiasis in Chilean coasts and for public health issues considering potential risk of human population due to its culinary preferences in eating raw fish