Anotaciones sobre la morfología del cromosoma sexual "Y" en Ovis Aries

[ES] Anotaciones sobre la morfología del cromosoma sexual "Y" en Ovis Arie

Caracteres reproductivos en la raza rubia gallega. I. Características del semen utilizado en inseminación artificial

[ES] Caracteres reproductivos en la raza rubia gallega. I. Características del semen utilizado en inseminación artificia

Vision-based active safety system for automatic stopping

ntelligent systems designed to reduce highway fatalities have been widely applied in the automotive sector in the last decade. Of all users of transport systems, pedestrians are the most vulnerable in crashes as they are unprotected. This paper deals with an autonomous intelligent emergency system designed to avoid collisions with pedestrians. The system consists of a fuzzy controller based on the time-to-collision estimate – obtained via a vision-based system – and the wheel-locking probability – obtained via the vehicle’s CAN bus – that generates a safe braking action. The system has been tested in a real car – a convertible Citroën C3 Pluriel – equipped with an automated electro-hydraulic braking system capable of working in parallel with the vehicle’s original braking circuit. The system is used as a last resort in the case that an unexpected pedestrian is in the lane and all the warnings have failed to produce a response from the driver

Distribución del sonido en sangre, plasma y eritrocitos en doce agrupaciones caprinas autóctonas españolas

[ES] Distribución del sonido en sangre, plasma y eritrocitos en doce agrupaciones caprinas autóctonas española

Distribución del sonido en sangre, plasma y eritrocitos, en seis razas bovinas españolas

[ES] Distribución del sonido en sangre, plasma y eritrocitos, en seis razas bovinas española

Intelligent automatic overtaking system using vision for vehicle detection

There is clear evidence that investment in intelligent transportation system technologies brings major social and economic benefits. Technological advances in the area of automatic systems in particular are becoming vital for the reduction of road deaths. We here describe our approach to automation of one the riskiest autonomous manœuvres involving vehicles – overtaking. The approach is based on a stereo vision system responsible for detecting any preceding vehicle and triggering the autonomous overtaking manœuvre. To this end, a fuzzy-logic based controller was developed to emulate how humans overtake. Its input is information from the vision system and from a positioning-based system consisting of a differential global positioning system (DGPS) and an inertial measurement unit (IMU). Its output is the generation of action on the vehicle’s actuators, i.e., the steering wheel and throttle and brake pedals. The system has been incorporated into a commercial Citroën car and tested on the private driving circuit at the facilities of our research center, CAR, with different preceding vehicles – a motorbike, car, and truck – with encouraging results

Neoadjuvant intralesional methotrexate for juvenile xanthogranuloma in an adult

Juvenile xanthogranuloma (JXG) is a non-Langerhans cell histiocytosis usually occurring in infants and typically located in the head or neck.1 Clinically, solitary skin lesions are found in 60%–82% of patients and the most common variant is characterized by one yellowish nodule. Adult onset is rare, and although JXG is usually self-limiting in children, spontaneous resolution is uncommon at older ages. In addition, up to 50% of patients with spontaneous regression develop an atrophy or anetodermal area.2 Thus, complete excision is frequently performed in this population subgroup to achieve better cosmetic results. In disseminated forms, different chemotherapy regimens, corticosteroids and other systemic therapies are used. Herein, we report a case of adult JXG treated with intralesional methotrexate (MTX) resulting in a rapid reduction in size

Prognostic Value of D-dimer to Lymphocyte Ratio (DLR) in Hospitalized Coronavirus Disease 2019 (COVID-19) Patients: A Validation Study in a National Cohort

Background: This study aimed to validate the role of the D-dimer to lymphocyte ratio (DLR) for mortality prediction in a large national cohort of hospitalized coronavirus disease 2019 (COVID-19) patients. Methods: A retrospective, multicenter, observational study that included hospitalized patients due to SARS-CoV-2 infection in Spain was conducted from March 2020 to March 2022. All biomarkers and laboratory indices analyzed were measured once at admission. Results: A total of 10,575 COVID-19 patients were included in this study. The mean age of participants was 66.9 (+/- 16) years, and 58.6% (6202 patients) of them were male. The overall mortality rate was 16.3% (n = 1726 patients). Intensive care unit admission was needed in 10.5% (n = 1106 patients), non-invasive mechanical ventilation was required in 8.8% (n = 923 patients), and orotracheal intubation was required in 7.5% (789 patients). DLR presented a c-statistic of 0.69 (95% CI, 0.68-0.71) for in-hospital mortality with an optimal cut-off above 1. Multivariate analysis showed an independent association for in-hospital mortality for DLR > 1 (adjusted OR 2.09, 95% CI 1.09-4.04; p = 0.03); in the same way, survival analysis showed a higher mortality risk for DLR > 1 (HR 2.24; 95% CI 2.03-2.47; p < 0.01). Further, no other laboratory indices showed an independent association for mortality in multivariate analysis. Conclusions: This study confirmed the usefulness of DLR as a prognostic biomarker for mortality associated with SARS-CoV-2 infection, being an accessible, cost-effective, and easy-to-use biomarker in daily clinical practice

Development of a Morenas Gallegas cattle breeds preservation program starting from pilot herds

En los últimos quince años, las poblaciones bovinas autóctonas de Galicia han descendido hasta una situación de vulnerabilidad enmarcada entre el estado crítico (menos de 100 reproductoras, variabilidad genética muy disminuída) y el de peligro de extinción (de 100 a 1000 reproductoras y dificultades para sobrevivir). Para evitar una eventual desaparición se ha establecido un Programa Operativo para el mantenimiento de animales in situ (explotaciones ganaderas y reservas naturales) que garantice la preservación y facilite su estudio desde el punto de vista sociológico, genético, etnológico, productivo y reproductivo. Se han elegido ejemplares de las razas Cachena, Caldelana, Frieiresa, Limiana y Vianesa, en función de su origen, historia, localización, morfología, estado de adaptabilidad y resistencia, y marcadores genéticos. Se han formado rebaños piloto para cada raza con 30 animales cada uno (24 hembras y 6 machos), debido al escaso número de animales existentes en estas razas. Se han establecido 6 grupos de reproducción, integrados cada uno de ellos por 4 hembras y 1 macho, apareándose todas las hembras del grupo con el macho asignado, instaurándose un sistema rotatorio de apareamientos para obtener el mínimo incremento en la consanguinidad del rebaño