Development of a Low-Cost Smart Sensor GNSS System for Real-Time Positioning and Orientation for Floating Offshore Wind Platform.

A low-cost smart sensor GNSS system has been developed to provide accurate real-time position and orientation measurements on a floating offshore wind platform. The approach chosen to offer a viable and reliable solution for this application is based on the use of the well-known advantages of the GNSS system as the main driver for enhancing the accuracy of positioning. For this purpose, the data reported in this work are captured through a GNSS receiver operating over multiple frequency bands (L1, L2, L5) and combining signals from different constellations of navigation satellites (GPS, Galileo, and GLONASS), and they are processed through the precise point positioning (PPP) and real-time kinematic (RTK) techniques. Furthermore, aiming to improve global positioning, the processing unit fuses the results obtained with the data acquired through an inertial measurement unit (IMU), reaching final accuracy of a few centimeters. To validate the system designed and developed in this proposal, three different sets of tests were carried out in a (i) rotary table at the laboratory, (ii) GNSS simulator, and (iii) real conditions in an oceanic buoy at sea. The real-time positioning solution was compared to solutions obtained by post-processing techniques in these three scenarios and similar results were satisfactorily achieved.

Recurrent voluntary termination of pregnancy. Prevalence study and exploration of associated factors. Antioquia, Colombia, 2015 ­ 2021 / Interrupciones voluntarias del embarazo recurrentes. Estudio de prevalencia y exploración de factores asociados. Antioquia, Colombia, 2015 - 2021]

Objectives: To describe the prevalence of recurrent voluntary termination of pregnancy (VTP) and to explore associated factors. Materials and methods: Descriptive, cross-sectional cohort study which included women seen between 2015 and 2021 in five sites of an institution located in the Department of Antioquia which promotes sexual and reproductive health (SRH) care in Colombia. Measured variables included sociodemographics, SRH, recurrent performance of VTP, type of procedure used in the first VTP and contraception method selected afterwards. The prevalence of global and yearly recurrent abortion period is presented. Associated factors were explored using a multivariate analysis. The research committee of the institution approved the study. Results: In total, 20,423 women were included. The prevalence of recurrent VTP was 4.07% (n = 831) during the entire period, ranging between 2.3 and 6% over the 7 years. The most commonly used method for recurrent VTP was pharmacological induction (48.50%). After the first VTP, 69.81% of women used contraceptive methods classified as "very effective" according to the World Health Organization. The risk factors identified as being associated with recurrent VTP included being part of the state-subsidized health insurance system (adjusted odds ratio [aOR] = 1.35; 95 % CI:1.05-1.72) and having had two or more pregnancies (aOR = 1.23; 95% CI: 1.06 - 1.44). Protective factors were identified and included out-of-pocket payment for VTP service (aOR = 0.71; 95% CI: 0.61-0.82), a history of late VTP (aOR = 0.30; 95% CI: 0.11-0.81), and the selection of a subdermal implant for contraception following the first abortion (sOR = 0.64; 95% CI: 0.49 ­ 0.83). Conclusions: It is possible that the prevalence of recurrent VTP is increasing. Prospective studies are required in order to determine whether there is a growing trend and to verify potential association hypotheses derived from this work.

OBJETIVOS: describir la prevalencia de las interrupciones voluntarias del embarazo (IVE) recurrentes y efectuar una exploración de los factores asociados a esta. Materiales y métodos: estudio de corte trasversal descriptivo, en el que se incluyeron mujeres atendidas entre 2015 y 2021 en cinco sedes, en el Departamento de Antioquia, de una Institución que promueve la atención en salud sexual y reproductiva (SSR) en Colombia. Se midieron variables sociodemográficas, de SSR, así como la realización de IVE recurrente, tipo de procedimiento utilizado en la primera IVE, y método de anticoncepción elegido posterior a esta. Se presenta la prevalencia de período de aborto recurrente global y por año. Se hace exploración de los factores asociados por medio de análisis multivariado. Se obtuvo aval del comité de investigación de la institución. RESULTADOS: se incluyó un total de 20.423 mujeres. La prevalencia de IVE recurrente fue del 4,07 % (n = 831) en todo el período, y varió del 2,3 al 6 % en los 6 años. El método más utilizado para la IVE recurrente fue inducción farmacológica (48,50 %). Después de la primera IVE, el 69,81 % de las mujeres utilizó métodos anticonceptivos clasificados como "muy efectivos", según la Organización Mundial de la Salud. Se identificaron como factores de riesgo de la IVE recurrente pertenecer al régimen de aseguramiento subsidiado por el Estado (Odds ratio ajustado (ORa) = 1,35; IC 95 %: 1,05-1,72) y haber tenido dos o más gestaciones (ORa = 1,23; IC 95 %: 1,06 - 1,44). Como factores protectores se identificaron: contratación del servicio de IVE bajo modalidad de pago de bolsillo (ORa = 0,71; IC 95 %: 0,61-0,82), el antecedente de IVE tardía (ORa = 0,30; IC 95 %: 0,11-0,81), y la elección del implante subdérmico posterior al primer aborto primer aborto como (ORa =0,64; IC 95 %: 0,49 - 0,83). CONCLUSIONES: la prevalencia de IVE recurrente posiblemente está incrementando. Se requieren estudios prospectivos que evalúen si existe una tendencia al incremento y que verifiquen posibles hipótesis de asociación que surgen de este trabajo.

Incidental diagnosis of bladder cancer in a national observational study in spain.

INTRODUCTION: Bladder cancer (BC) is a common malignancy in Spain. The aims of this study were: to identify the proportion of patients diagnosed with BC incidentally or after symptomatic presentation in a contemporary period in Spain; to compare demographic, clinical, and pathologic characteristics between these groups. METHODS: This was a retrospective analysis of a multi-centre observational study of 26 hospitals in the Spanish National Health System of all BCs newly diagnosed in 2011. The study represented 21.5% of the Spanish population and hospitals were selected in proportion to Spain's regions to ensure a representative sample. Patients were categorized by whether the cancer was diagnosed incidentally or after symptomatic presentation and baseline demographic, pathologic, and clinical characteristics were analyzed. RESULTS: 2472 were newly diagnosed with BC at the 26 participating Spanish hospitals with 308 (12.5%) of cases diagnosed incidentally and 2164 (87.5%) diagnosed after symptomatic presentation. No differences were observed between patients diagnosed incidentally vs. symptomatically in terms of demographics or measured co-morbidities. Compared to symptomatically diagnosed bladder tumours, those diagnosed incidentally were more likely to have a papillary appearance, to be significantly smaller, and less likely to have positive/suspicious cytology. Additionally, incidentally diagnosed bladder tumours were less likely to be muscle-invasive (11.7% vs. 25.0%, p < 0.01) nor aggressive at pathology, with 33.6% Grade 3 compared to 50.1%, (p < 0.01). CONCLUSIONS: We identified a significant percentage (12.5%) of new bladder cancer diagnosis made incidentally in a representative sample of the Spanish population. These tumours exhibited less aggressive pathologic characteristics than their symptomatic counterparts.

[Renal angioleiomyoma with a myogenic and melanocytic immunophenotype, as a variant of angiomyolipoma]. / Angioleiomioma renal con patrón inmunohistoquímico miogénico y melanocítico como variante del angiomiolipoma.

We present a case of a 67 year old male with a cortical nodular tumour of the left kidney. During a year's follow-up with ultrasound and MRI, the tumour was seen to increase in size by 16-20 mm. The nodule was surgically removed. Microscopically it was well defined and unencapsulated, with a proliferation of typical fusiform cells of smooth muscle cell appearance, clumped around well vascularized areas. Immunohistochemically, the neoplasm was positive for muscle markers (smooth muscle actin, desmin and caldesmon) and melanocyte markers (HMB-45 and Melan A). Our case would appear to be a renal neoplasm with an angioleiomyomatous pattern, but with immunohistochemical characteristics of angiomyolipoma (PEComa), however, without either a lipomatous or lipid cell component. We found no previous reports of this type of tumour in the literature.

Interrupciones voluntarias del embarazo recurrentes. Estudio de prevalencia y exploración de factores asociados. Antioquia, Colombia, 2015 - 2021 / Recurrent voluntary termination of pregnancy. Prevalence study and exploration of associated factors. Antioquia, Colombia, 2015 ­ 2021

Objetivos: Describir la prevalencia de las interrupciones voluntarias del embarazo (IVE) recurrentes y efectuar una exploración de los factores asociados a esta. Materiales y métodos: Estudio de corte trasversal descriptivo, en el que se incluyeron mujeres atendidas entre 2015 y 2021 en cinco sedes, en el Departamento de Antioquia, de una Institución que promueve la atención en salud sexual y reproductiva (SSR) en Colombia. Se midieron variables sociodemográficas, de SSR, así como la realización de IVE recurrente, tipo de procedimiento utilizado en la primera IVE, y método de anticoncepción elegido posterior a esta. Se presenta la prevalencia de período de aborto recurrente global y por año. Se hace exploración de los factores asociados por medio de análisis multivariado. Se obtuvo aval del comité de investigación de la institución. Resultados: Se incluyó un total de 20.423 mujeres. La prevalencia de IVE recurrente fue del 4,07 % (n = 831) en todo el período, y varió del 2,3 al 6 % en los 6 años. El método más utilizado para la IVE recurrente fue inducción farmacológica (48,50 %). Después de la primera IVE, el 69,81 % de las mujeres utilizó métodos anticonceptivos clasificados como "muy efectivos", según la Organización Mundial de la Salud. Se identificaron como factores de riesgo de la IVE recurrente pertenecer al régimen de aseguramiento subsidiado por el Estado (Odds ratio ajustado (ORa) = 1,35; IC 95 %: 1,05-1,72) y haber tenido dos o más gestaciones (ORa = 1,23; IC 95 %: 1,06 - 1,44). Como factores protectores se identificaron: contratación del servicio de IVE bajo modalidad de pago de bolsillo (ORa = 0,71; IC 95 %: 0,61-0,82), el antecedente de IVE tardía (ORa = 0,30; IC 95 %: 0,11-0,81), y la elección del implante subdérmico posterior al primer aborto primer aborto como (ORa =0,64; IC 95 %: 0,49 - 0,83). Conclusiones: La prevalencia de IVE recurrente posiblemente está incrementando. Se requieren estudios prospectivos que evalúen si existe una tendencia al incremento y que verifiquen posibles hipótesis de asociación que surgen de este trabajo.

Objectives: To describe the prevalence of recurrent voluntary termination of pregnancy (VTP) and to explore associated factors. Material and methods: Descriptive, cross-sectional cohort study which included women seen between 2015 and 2021 in five sites of an institution located in the Department of Antioquia which promotes sexual and reproductive health (SRH) care in Colombia. Measured variables included sociodemographics, SRH, recurrent performance of VTP, type of procedure used in the first VTP and contraception method selected afterwards. The prevalence of global and yearly recurrent abortion period is presented. Associated factors were explored using a multivariate analysis. The research committee of the institution approved the study. Results: In total, 20,423 women were included. The prevalence of recurrent VTP was 4.07 % (n = 831) during the entire period, ranging between 2.3 and 6 % over the 7 years. The most commonly used method for recurrent VTP was pharmacological induction (48.50 %). After the first VTP, 69.81 % of women used contraceptive methods classified as "very effective" according to the World Health Organization. The risk factors identified as being associated with recurrent VTP included being part of the state-subsidized health insurance system (adjusted odds ratio [aOR] = 1.35; 95 % CI:1.05-1.72) and having had two or more pregnancies (aOR = 1.23; 95% CI: 1.06 - 1.44). Protective factors were identified and included out-of-pocket payment for VTP service (aOR = 0.71; 95% CI: 0.61-0.82), a history of late VTP (aOR = 0.30; 95% CI: 0.11-0.81), and the selection of a subdermal implant for contraception following the first abortion (sOR = 0.64; 95% CI: 0.49 - 0.83). Conclusions: It is possible that the prevalence of recurrent VTP is increasing. Prospective studies are required in order to determine whether there is a growing trend and to verify potential association hypotheses derived from this work.

Uso de métodos anticonceptivos de alta eficacia posterior a la interrupción voluntaria del embarazo en Profamilia, 2015-2020

Objetivo: Describir los métodos anticonceptivos reportados por las usuarias de servicios de interrupción voluntaria del embarazo (IVE), antes y posterior a la consulta, y explorar la asociación entre las características sociodemográficas y los antecedentes ginecológicos con la elección de anticonceptivos de alta eficacia posterior a la IVE, con gestaciones menores de 15 semanas, en el departamento de Antioquia, Colombia, en la institución Profamilia, entre el 2015 y el 2020. Metodología: Estudio de corte transversal. Se analizaron los 13 067 registros de consultas de IVE realizadas en Profamilia de la regional Antioquia, del 2015 al 2020. Las variables cualitativas se midieron con frecuencias y porcentajes, y las cuantitativas, con la media y la desviación estándar. Se implementaron modelos de regresión logística para establecer la asociación de las variables independientes con la variable de interés. Resultados: La consulta de IVE contribuyó al incremento del uso de métodos anticonceptivos de alta eficacia. Antes de la IVE, el 53 % de las mujeres no usaban ningún método. Posterior a la interrupción, el 97 % empezó a utilizar métodos de alta eficacia. Además del uso de métodos poco eficaces o el uso de preservativo, obtuvieron una posibilidad 13 veces más alta de elegir un método de alta eficacia. Conclusiones: La educación en métodos anticonceptivos posterior a una IVE es fundamental para promover el uso de opciones muy efectivas, con el fin de disminuir la aparición de nuevos embarazos no deseados que puedan llevar a una IVE recurrente.

Objective: To describe the contraceptive methods reported by users of voluntary termination of pregnancy (VTP) services, before and after consultation, and to examine the association between sociodemographic characteristics and gynecological history with choosing highly effective contraceptive methods after VTP, in gestations shorter than 15 weeks, in the department of Antioquia, Colombia, at the Profamilia institution, from 2015 to 2020. Methodology: This is a cross-sectional study. We analyzed 13 067 records of VTP consultations performed in Profamilia in Antioquia from 2015 to 2020. Qualitative variables were measured with frequencies and percentages, and quantitative variables with the mean and standard deviation. Logistic regression models were implemented to establish the association of the independent variables with the variable of interest. Results: VTP consultation contributed to increased use of highly effective contraceptive methods. Before VTP, 53% of women were not using any method. After the termination, 97% started using highly effective methods. Likewise, those using low efficacy methods or condoms were 13 times more likely to choose a highly effective method. Conclusions: Post-VTP contraceptive education is essential for promoting the use of highly effective methods to reduce the occurrence of new unwanted pregnancies that may lead to repeated VTP

Objetivo: Descrever os métodos anticoncepcionais referidos pelas usuárias de serviços de interrupção voluntária da gravidez (IVG), antes e depois da consulta, e estudar a associação entre as características sociodemográficas e os antecedentes ginecológicos com a eleição de anticoncepcionais de alta eficiência depois da IVG, com gestações menores de 15 semanas, no departamento de Antioquia, Colômbia, na instituição Profamilia, entre 2015 e 2020. Metodologia: Estudo de corte transversal. Analisaram-se os 13067 registros de consultas de IVG realizadas em Profamilia na sede Antioquia, de 2015 a 2020. As variáveis qualitativas mediram-se com frequências e porcentagens, e as quantitativas com a média e o desvio padrão. Implementaram-se modelos de regressão logística para estabelecer a associação das variáveis independentes com a variável de interesse. Resultados: A consulta de IVG contribuiu ao incremento do uso de métodos anticoncepcionais de alta eficiência. Antes da IVG, o 53% das mulheres não usavam nenhum método. Depois da interrupção, o 97% começou a usar métodos de alta eficiência. Além do uso de métodos pouco eficientes ou o uso da camisinha, obtiveram uma possibilidade 13 vezes maior de escolher um método de alta eficiência. Conclusões: A educação em métodos anticoncepcionais posterior a uma IVG é fundamental para promover o uso de opções muito efetivas, com o fim de diminuir a aparição de novas gravidezes não desejadas que podem levar a uma IVG recorrente.

Angioleiomioma renal con patrón inmunohistoquímico miogénico y melanocítico como variante del angiomiolipoma / Renal angioleiomyoma with a myogenic and melanocytic immunophenotype, as a variant of angiomyolipoma

Se presenta el caso de un varón de 67 años con tumoración cortical nodular renal izquierda. Fue intervenido quirúrgicamente por crecimiento tumoral progresivo de 16-20mm a lo largo de un año y tras seguimiento por estudio ecográfico y de resonancia magnética. Se practicó tumorectomía del nódulo y en el examen microscópico se observó una formación bien delimitada y no encapsulada, resultante de proliferación tumoral de células fusiformes sin atipias y de apariencia muscular lisa, que adoptaban disposición arremolinada junto a zonas ricamente vascularizadas. En el estudio inmunohistoquímico, en la proliferación fusocelular se demostró positividad para marcadores musculares (actina de músculo liso, desmina y caldesmón) y marcadores melanocíticos (HMB-45 y Melan A). Nuestro caso parece tratarse de una neoplasia renal de patrón angioleiomiomatoso, pero con características inmunohistoquímicas de angiomiolipoma (PEComa) sin componente lipomatoso o lipídico, tipo de tumoración sobre la que no poseemos información previa en la literatura revisada

We present a case of a 67 year old male with a cortical nodular tumour of the left kidney. During a year's follow-up with ultrasound and MRI, the tumour was seen to increase in size by 16-20 mm. The nodule was surgically removed. Microscopically it was well defined and unencapsulated, with a proliferation of typical fusiform cells of smooth muscle cell appearance, clumped around well vascularized areas. Immunohistochemically, the neoplasm was positive for muscle markers (smooth muscle actin, desmin and caldesmon) and melanocyte markers (HMB-45 and Melan A). Our case would appear to be a renal neoplasm with an angioleiomyomatous pattern, but with immunohistochemical characteristics of angiomyolipoma (PEComa), however, without either a lipomatous or lipid cell component. We found no previous reports of this type of tumour in the literature