Estudio de las condiciones de agitación por oleaje en un puerto mediante simulación numérica

Se describe una aplicación del sistema computacional DIFRAC para estudiar la s condiciones de agitación por oleaje dentro de un puerto, teniendo en cuenta el efecto combinado de difracción, refracción y reflexión de las olas . Se presentan resultados para la amplitud y dirección de propagación del oleaje en su interior y de las condiciones de resonancia en la s distintas dársenas del puerto .Peer Reviewe

Estudio de las condiciones de agitación por oleaje en un puerto mediante simulación numérica

Se describe una aplicación del sistema computacional DIFRAC para estudiar la s condiciones de agitación por oleaje dentro de un puerto, teniendo en cuenta el efecto combinado de difracción, refracción y reflexión de las olas . Se presentan resultados para la amplitud y dirección de propagación del oleaje en su interior y de las condiciones de resonancia en la s distintas dársenas del puerto .Peer Reviewe

Multi sensor system for pedestrian tracking and activity recognition in indoor environments

The widespread use of mobile devices and the rise of Global Navigation Satellite Systems (GNSS) have allowed mobile tracking applications to become very popular and valuable in outdoor environments. However, tracking pedestrians in indoor environments with Global Positioning System (GPS)-based schemes is still very challenging. Along with indoor tracking, the ability to recognize pedestrian behavior and activities can lead to considerable growth in location-based applications including pervasive healthcare, leisure and guide services (such as, hospitals, museums, airports, etc.), and emergency services, among the most important ones. This paper presents a system for pedestrian tracking and activity recognition in indoor environments using exclusively common off-the-shelf sensors embedded in smartphones (accelerometer, gyroscope, magnetometer and barometer). The proposed system combines the knowledge found in biomechanical patterns of the human body while accomplishing basic activities, such as walking or climbing stairs up and down, along with identifiable signatures that certain indoor locations (such as turns or elevators) introduce on sensing data. The system was implemented and tested on Android-based mobile phones. The system detects and counts steps with an accuracy of 97% and 96:67% in flat floor and stairs, respectively; detects user changes of direction and altitude with 98:88% and 96:66% accuracy, respectively; and recognizes the proposed human activities with a 95% accuracy. All modules combined lead to a total tracking accuracy of 91:06% in common human motion indoor displacement

Attitudes to acute pain and the use of pain assessment scales among Spanish small animal veterinarians

Evaluation of acute pain in dogs and cats is the basis for an appropriate treatment and improved well-being. The difficulties involved in pain assessment pose a challenge for veterinarians, and recent findings indicate that the most effective tools available—validated pain assessment scales—may not be widely utilized.ObjectivesThis study aimed to characterize the level of concern among Spanish veterinarians regarding acute pain in companion animals. Additionally, it sought to determine whether this concern correlates with the utilization of optimal assessment tools.MethodsA survey was conducted to explore Spanish veterinarians’ attitudes toward pain and its assessment. The survey was distributed through two most prominent small animal veterinary associations, the Spanish association for veterinary anesthesia and analgesia, as well as key industry players committed to proactive pain management. Descriptive analysis of the collected data was performed using Excel and SPSS.ResultsA total of 292 veterinarians participated in the study. A high level of concern regarding pain in dogs and cats was determined where 44% of surveyed veterinarians assessed pain in all patients. Despite an awareness of validated pain scales, only 28% used them. The preferred scales were the Glasgow CMPS for dogs (94%) and the Feline Grimace Scale for cats (93%). Among respondents who do not use these validated tools, there was a considerable interest in incorporating these scales into practice (85%) and considered lack of training was the most relevant issue (32%). Other challenges to scale utilization were identified, including constraints related to time, staffing, and the need to establish a habit.Conclusions and relevanceSpanish small animal veterinarians demonstrated a strong awareness to pain in their patients and employed various methods for pain assessment. However, a limited use of validated tools was identified and likely attributed to challenges such as a lack of established routine, time constraints, insufficient personnel, and, notably, a knowledge gap among veterinarians who do not employ pain assessment scales. The most commonly used scales were the Glasgow CMPS for dogs and the FGS for cats. Overall, these results suggest a window of opportunity for the implementation of training programs in small animal pain assessment at a national level

Activation of aromatic C−C bonds of 2,2’-bipyridine ligands

4,4’-Disubstituted-2,2′-bipyridine ligands coordinated to Mo and Re cationic fragments become dearomatized by an intramolecular nucleophilic attack from a deprotonated N-alkylimidazole ligand in cis disposition. The subsequent protonation of these neutral complexes takes place on a pyridine carbon atom rather than at nitrogen, weakening an aromatic C−C bond and affording a dihydropyridyl moiety. Computational calculations allowed for the rationalization of the formation of the experimentally obtained products over other plausible alternatives.Financialsupport from Ministerio de Economía y Competitividad/FEDER (grant CTQ2015-70231-P) and Principado de Asturias (grant GRUPIN14-103) is gratefully acknowledged. J.D.thanks COMPUTAEX for granting access to LUSITANIA supercomputing facilities.Peer Reviewe

The role of conductive additives on the performance of hybrid carbon xerogels as electrodes in aqueous supercapacitors

Three different hybrid carbon xerogels containing Graphene Oxide (AXGO), Micronized Graphite (AXMG) and Carbon Black (AXCB) were synthesized using an easy, fast and affordable method. These three additives were initially selected to improve the electrical conductivity of the pristine activated carbon xerogel (AX) thus expecting to improve its performance in aqueous supercapacitors. Capacitances of the corresponding devices were measured as a function of current density and results of the high and low charge transfer regime of the supercapacitors were discussed separately. In both regimes, the differences observed between the hybrid electrodes were analyzed on the basis of the concurrent influence of the micro and mesoporosity, surface chemistry and electrical conductivity of the materials. Accordingly, even though all the hybrid carbon xerogels showed higher electrical conductivities, only AXGO rendered a better performance than AX, showing the highest capacitances in the whole interval of intensities studied. Consequently, at 16 A g−1, the energy and power densities of the AXGO supercapacitors increased up to 16% and 97%, respectively, with respect to AX, and of 143% and 409%, respectively, with respect to a commercial activated carbon used as reference. The performance of AXCB and, especially AXMG was worse than AX supercapacitors due to a combination of inadequate pore size distributions and/or a poor surface chemistry. Finally, TEM analysis helped to understand the different way the three additives were affecting the nanostructure (and final properties) of the hybrid carbon xerogels.Authors gratefully acknowledge the financial support from the Ministerio de Economía, Industria y Competitividad from Spain (Project CTQ2017-87820-R). MCR also acknowledges CSIC (Project I.E. 201880E010)

Toxoplasmosis in domestic rabbit

Se describe un brote de Toxoplasmosis en conejos domésticos, desde el punto de vista clínico y anatomopatológicos macro y microscópico, el diagnóstico se realizó exclusivamente en base al estudio histopatológico. Se relatan las formas de presentación en otras especies domésticas, ciclo evolutivo y epidemiología del parásito y los antecedentes en veterinaria en nuestro país.An outbreak of Toxoplasmosis in domestic rabbits is described clinically and anatomopathologically.Diagnosis was performed under hlstologlc studies carried out with hematoxylin and eosin stains and other special techniques. Its occurrence in other domestic animals, biological cycle and epidemiology are also described as well as the antecedents in veterinary in our country.Facultad de Ciencias Veterinaria

Toxoplasmosis in domestic rabbit

Se describe un brote de Toxoplasmosis en conejos domésticos, desde el punto de vista clínico y anatomopatológicos macro y microscópico, el diagnóstico se realizó exclusivamente en base al estudio histopatológico. Se relatan las formas de presentación en otras especies domésticas, ciclo evolutivo y epidemiología del parásito y los antecedentes en veterinaria en nuestro país.An outbreak of Toxoplasmosis in domestic rabbits is described clinically and anatomopathologically.Diagnosis was performed under hlstologlc studies carried out with hematoxylin and eosin stains and other special techniques. Its occurrence in other domestic animals, biological cycle and epidemiology are also described as well as the antecedents in veterinary in our country.Facultad de Ciencias Veterinaria