Campos de juego de Noguchi y Van Eyck. El plano horizontal

Campos de juego de Noguchi y Van Eyck. El plano horizonta

Balance de líquidos - vapor para mezcla de metanol - benzen usando los modelos Peng Robinson y Van- Laar

This paper is related to the procedure for calculating curves dew point and bubble point of a binary system, consisting of the methanol and benzene mixture to 45°C, using the Peng-Robinson cubic equation to calculate the fugacity coefficient of gas i in the mixture, and Van Laar model to calculate the activity coefficient of component i in the liquid mixture. Then a comparison between the theoretical data with the experimental data and later with the commercial simulator Hysys-Aspen, which applies the model of Wilson. The simulation was validated with experimental data,in addition to comparing the results with a commercial simulator.El  presente  artículo  está  relacionado  con  el  procedimiento  para  obtener  las  curvas  de  punto  de  rocío  y  de  punto  de  burbuja  en  un  equilibrio  líquido  -  vapor  (VLE)  para  una  mezcla  binaria  con  azeótropo  de  Metanol  y  Benceno  a  45°C,  utilizando  la  ecuación  cúbica  de  Peng Robinson para calcular el coeficiente de fugacidad del gas i en la mezcla gaseosa, y el modelo de Van Laar para calcular el coeficiente de actividad del componente i en la mezcla líquida.  Luego  se  compararon  los  datos  teóricos  con  datos  experimentales,  posteriormente con   el   simulador   comercial,   el   cual   aplica   el   modelo   de   Wilson,   se   logró   validar   los   datos  experimentales,  además  de  comparar  los  resultados  con  un  simulador  comercial

Relaciones personales y de poder en los centros libertarios madrileños: el caso del Ateneo Libertario de Ventas (verano-otoño de 1936)

Resumen: La Guerra Civil española generó una serie de dinámicas que modificaron las relaciones de género, siendo más notorias éstas en la retaguardia republicana. En el Madrid de la Guerra Civil, la mayor parte de los centros obreros adquirieron una serie de nuevas atribuciones que les consolidaron como una alternativa al modelo republicano burgués. Uno de estos centros fue el Ateneo Libertario de Ventas, donde se desempeñaron funciones culturales, heredadas del periodo republicano, y otras nuevas fruto de las necesidades de la guerra, tales como: la función defensiva y la humanitaria. Este trabajo tiene como objeto estudiar no solo el funcionamiento interno de este centro, sino también analizar las relaciones de género e interpersonales dentro del mismo. Palabras clave: Guerra Civil, relaciones de género, anarquismo, ateneos, Madrid. Abstract: The Spanish Civil War produced changes which modified gender relationships, especially in the Republican rear. During the Civil War the majority of working centre gained new responsibilities which transformed it into an alternative bourgeois republican model. One of these centres was The Libertarian Ateneo of Ventas, where roles such as cultural matters, which were inherited during the Republican period, were carried out alongside others new activities during the civil war: defensive and humanitarian. The purpose of this work is not only to study the internal system of this centre, but to study gender and interpersonal relationships in The Libertarian Ateneo of Ventas. Keywords: Civil War, gender relationships, anarchism, ateneos, Madrid

SfM-3DULC: Reliability of a new 3D wound measurement procedure and its accuracy in projected area

[EN] Three-dimensional (3D) wound measurement lacks a gold standard to test accuracy. It is useful to develop procedures to scan wounds and reconstruct their 3D model with low-cost techniques. We present a new procedure (Structure from Motion [SfM]-3DULC) that uses photographs for measuring nine wound variables. We also propose a new variant of ImageJ in which an orthophoto is used to measure the projected area (Ortho-ImageJ). In addition, we compare the wound measurements made by dermatologists and non-experts. A group of five experts in dermatology and five non-specialists measured 33 leg wounds five times per procedure. Intra-rater and inter-rater reliability scores of SfM-3DULC were evaluated with the intraclass correlation coefficient (ICC 2,1). The accuracy of the two new procedures (SfM-3DULC and Ortho-ImageJ) in the measurement of projected area was assessed by comparing their values with those obtained using ImageJ, with the Wilcoxon matched-pairs signed rank test (alpha = 0.05). This test was also used to analyse the differences between the measurements made by dermatologists and non-experts. All the variables measured by dermatologists using SfM-3DULC showed excellent scores of intra-rater reliability (ICC > 0.99) and inter-rater reliability (ICC > 0.98). No significant differences between the three procedures were found when comparing their projected area values. Significant differences between the measurements of dermatologists and non-experts were found in most of the variables: circularity coefficient, perimeter, projected area, surface area, and reference surface area. The wound measurement procedure SfM-3DULC has an excellent reliability, is accurate for the measurement of projected area, and can be used by dermatologists for wound monitoring in everyday clinical practice.The authors thank Mr. Ramon Dura Mora and the Unidad de Enfermeria, ulceras y Heridas complejas La Fe. This work is part of the Ph.D. research of D.S-J., which is supported by a grant from Generalitat Valenciana-Conselleria de Educacion, Investigacion, Cultura y Deporte, and the European Social Fund (ACIF/2018/160).Sánchez-Jiménez, D.; Buchón Moragues, FF.; Escutia-Muñoz, B.; Botella-Estrada, R. (2022). SfM-3DULC: Reliability of a new 3D wound measurement procedure and its accuracy in projected area. International Wound Journal. 19(1):44-51. https://doi.org/10.1111/iwj.13595S445119

Development of Computer Vision Applications to Automate the Measurement of the Dimensions of Skin Wounds

[EN] This paper shows the progress in the development of two computer vision applications for measuring skin wounds. Both applications have been written in Python programming language and make use of OpenCV and Scipy open source libraries. Their objective is to be part of a software that calculates the dimensions of skin wounds in an objective and reliable way. This could be useful in the clinical follow-up, assessing the evolution of skin wounds, as well as in research, comparing the efficacy of different treatments. Merging these two applications into a single one would allow to generate two-dimensional results in real time, and three-dimensional results after a few hours of processingThis work is part of the Ph.D. research of D.S., which is supported by a grant from Generalitat Valenciana - Consellería de Educación, Investigación, Cultura y Deporte and the European Social Fund (ACIF/2018/160)Sánchez-Jiménez, D.; Buchón Moragues, FF.; Escutia-Muñoz, B.; Botella-Estrada, R. (2019). Development of Computer Vision Applications to Automate the Measurement of the Dimensions of Skin Wounds. Proceedings. 19(18):1-4. https://doi.org/10.3390/proceedings2019019018S14191

Towards AER VITE: building spike gate signal

Neuromorphic engineers aim to mimic the precise and efficient mechanisms of the nervous system to process information using spikes from sensors to actuators. There are many available works that sense and process information in a spike-based way. But there are still several gaps in the actuation and motor control field in a spike-based way. Spike-based Proportional-Integrative-Derivative controllers (PID) are present in the literature. On the other hand, neuro-inspired control models as VITE (Vector Integration To End point) and FLETE (Factorization of muscle Length and muscle Tension) are also present in the literature. This paper presents another step toward the spike implementation of those neuro-inspired models. We present a spike-based ramp multiplier. VITE algorithm generates the way to achieve a final position targeted by a mobile robotic arm. The block presented is used as a gate for the way involved and it also puts the incoming movement on speed with a variable slope profile. Only spikes for information representation were used and the process is in real time. The software simulation based on Simulink and Xilinx System Generator shows the accurate adjust to the traditional processing for short time periods and the hardware tests confirm and extend the previous simulated results for any time. We have implemented the spikes generator, the ramp multiplier and the low pass filter into the Virtex-5 FPGA and connected this with an USB-AER (Address Event Representation) board to monitor the spikes.Ministerio de Ciencia e Innovación TEC2009-10639-C04-0

New Promoters for Metabolic Engineering of Ashbya gossypii

[EN]Ashbya gossypii is a filamentous fungus that is currently exploited for the industrial production of riboflavin. In addition, metabolically engineered strains of A. gossypii have also been described as valuable biocatalysts for the production of different metabolites such as folic acid, nucleosides, and biolipids. Hence, bioproduction in A. gossypii relies on the availability of well-performing gene expression systems both for endogenous and heterologous genes. In this regard, the identification of novel promoters, which are critical elements for gene expression, decisively helps to expand the A. gossypii molecular toolbox. In this work, we present an adaptation of the Dual Luciferase Reporter (DLR) Assay for promoter analysis in A. gossypii using integrative cassettes. We demonstrate the efficiency of the analysis through the identification of 10 new promoters with different features, including carbon source-regulatable abilities, that will highly improve the gene expression platforms used in A. gossypii. Three novel strong promoters (PCCW12, PSED1, and PTSA1) and seven medium/weak promoters (PHSP26, PAGL366C, PTMA10, PCWP1, PAFR038W, PPFS1, and PCDA2) are presented. The functionality of the promoters was further evaluated both for the overexpression and for the underexpression of the A. gossypii MSN2 gene, which induced significant changes in the sporulation ability of the mutant strains

Three-dimensional laparoscopic sleeve gastrectomy: improved patient safety and surgeon convenience

One of the aims of laparoscopic surgery is to improve upon the results obtained by open surgery. This clearly appears to have been achieved in bariatric surgery. Two-dimensional (2-D) systems have been used to date, though new 3-dimensional (3-D) technologies have been introduced in an attempt to improve surgeon vision and thus increase the safety of the surgical techniques. Sixty obese patients underwent sleeve gastrectomy using a device equipped with 3-D optics allowing surgery to be viewed by the surgeon in 3 dimensions by using a specific monitor and wearing appropriate glasses. The mean patient age was 48.1 years. The mean weight was 114 kg (range, 92–172), with a mean body mass index (BMI) of 44 ± 5.21 kg/m2. All surgeries were performed using the 3-D system, with a mean surgical time of 71 ± 49.6 minutes and a mean hospital stay of 3.0 ± 1.2 days. Only 1 intraoperative complication was recorded: retroperitoneal bleeding on insertion of the optical trocar. Over a mean follow-up period of 12 months, the mean body weight of the patients was 88 kg (range, 71–121), with a BMI of 30.56 ± 3.98 kg/m2 and a percentage excess weight loss of 68.14% ± 7.89%. There was clear improvement of both the blood pressure and glucose levels. Three-dimensional sleeve gastrectomy is safe, viable, and fully reproducible compared with 2-D surgery, improving visualization of the surgical field, safety, and surgeon convenience. Randomized studies involving larger patient samples are needed for the comparison of result

Structure 1-2 in the necropolis of Los Algarbes (Tarifa, Cadiz). Its interpretacion on the basis of new investigations

Las investigaciones que estamos desarrollando sobre la necrópolis de Los Algarbes (Tarifa, Cádiz), nos están proporcionando un conocimiento preciso sobre la tipología de los sistemas constructivos, los rituales empleados,... En esta línea, una de las estructuras funerarias más significativas de la necrópolis por sus características constructivas se corresponde con la Estructura 1-2, relacionada con una “sepultura de construcción mixta”, que bien recuerdan a las construcciones dolménicas. Pero que en este caso, el corredor está excavado en la roca y la cubierta está formada por ortostatos. A raíz de nuestras recientes investigaciones, realizamos una descripción más precisa sobre el sistema constructivo empleado en la Estructura 1-2, la procedencia de las materias primas empleadas y su contextualización dentro de la necrópolis.Research we are doing on the Necropolis de los Algarbes (Tarifa,Cadiz), is providing us an accurate Knowledge on the typology of construction systems, the funerary rituals,... In this line, one of the most significant funerary structures in the necropolis for its constructive characteristics corresponds to 1-2 Structure, related to a “burial composite construction”, that is reminiscent to the dolmen construction. However, in this case, the corridor is excavated in the rock and cover consists of megaliths. As a result of our recent research, we carry out a more precise description about the construction system used in the 1-2 Structure, the origin of the raw materials and its contextualization within the necropolis

Motion-Based Design of Passive Damping Systems to Reduce Wind-Induced Vibrations of Stay Cables under Uncertainty Conditions

Stay cables exhibit both great slenderness and low damping, which make them sensitive to resonant phenomena induced by the dynamic character of external actions. Furthermore, for these same reasons, their modal properties may vary significantly while in service due to the modification of the operational and environmental conditions. In order to cope with these two limitations, passive damping devices are usually installed at these structural systems. Robust design methods are thus mandatory in order to ensure the adequate behavior of the stay cables without compromising the budget of the passive control systems. To this end, a motion-based design method under uncertainty conditions is proposed and further implemented in this paper. In particular, the proposal focuses on the robust design of di erent passive damping devices when they are employed to control the response of stay cables under wind-induced vibrations. The proposed method transforms the design problem into a constrained multi-objective optimization problem, where the objective function is defined in terms of the characteristic parameters of the passive damping device, together with an inequality constraint aimed at guaranteeing the serviceability limit state of the structure. The performance of the proposed method was validated via its application to a benchmark structure with vibratory problems: The longest stay cable of the Alamillo bridge (Seville, Spain) was adopted for this purpose. Three di erent passive damping devices are considered herein, namely: (i) viscous; (ii) elastomeric; and (iii) frictions dampers. The results obtained by the proposed approach are analyzed and further compared with those provided by a conventional method adopted in the Standards. This comparison illustrates how the newly proposed method allows reduction of the cost of the three types of passive damping devices considered in this study without compromising the performance of the structure.Ministerio de Ciencia, Innovación y Universidades RT12018-099639-B-I00Universidad de Sevilla USE-17047-