A Decision Tree and S-Transform Based Approach for Power Quality Disturbances Classification

In this paper, it is presented an automated classification based on S-transform as feature extraction tool and Decision Tree as algorithm classifier. The signals generated according to mathematical models, including complex disturbances, have been used to design and test this approach, where noise is added to the signals from 40dB to 20dB. Finally, several disturbances, simple and complex, have been considered to test the implemented system. Evaluation results verifying the accuracy of the proposed method are presented.IEE

Estudio preliminar sobre el efecto del ultrasonido en las propiedades fisicoquímicas del vino tinto

Ultrasound is regarded as a potential alternative method for improving the quality of some wines. This study was initiated with the objective of evaluating the effects of ultrasound on some important physicochemical properties of red wine such as chromatic characteristics (CC), electrical conductivity (EC), pH, titratable acidity (TA), total phenolic compounds (TPCs) and DPPH (1,1-diphenyl-2-picryl-hydrazyl) free radical scavenging activity (DFRSA). The operational parameters assessed were ultrasound power, ultrasound frequency, exposure time and bath temperature. Results illustrated that there were significant changes in CC, EC and TPC while pH and TA hardly changed except for samples treated at high temperatures. DFRSA was correlated to TPC during ultrasonic treatment. Application of principal component analysis to the experimental data suggested that exposure time was the factor with the greatest ability to induce changes on wine. Results suggested that ultrasound may be applied to improve some physicochemical properties of red wine.El ultrasonido se considera uno de los métodos alternativos potenciales para mejorar la calidad de algunos vinos. Se comenzó este estudio con el objetivo de evaluar los efectos del ultrasonido en algunas de la propiedades fisicoquímicas importantes del vino tinto como son: las características cromáticas (CC), la conductividad eléctrica (EC), el pH, la acidez (TA), los compuestos fenólicos totales (TPC) y el DPPH (1,1-difenil-2-picrilhidrazil) de actividad de eliminación de radicales libres (DFRSA). Los parámetros operacionales examinados fueron: la potencia de ultrasonido, la frecuencia de ultrasonido, el tiempo de exposición y la temperatura de baño. Los resultados ilustraron la existencia de cambios significativos en CC, EC y TPC, mientras que el pH y TA prácticamente no cambiaron excepto en las muestras tratadas con altas temperaturas. DFRSA tuvo correlación con TPC durante el tratamiento con ultrasonido. La aplicación de análisis de componentes principales a los datos experimentales sugirió que el tiempo de exposición era el factor con mayor habilidad para inducir cambios en el vino. Los resultados sugirieron que el ultrasonido podría aplicarse para mejorar algunas de las propiedades fisicoquímicas del vino tinto.National Natural Science Foundation of China [No. 31101324]Natural Science Foundation of Shaanxi Province, China [No. 2015JM3097]Technology Transfer Promotion Project of Xi’an, Shaanxi Province, China [No.CXY1434(5)]Fundamental Research Funds for the Central Universities of China [Nos. GK201302039, GK201404006

Nuevos datos sobre el género Tulostoma (Gasteromycetes) en España. IV

Eleven taxa of Tulostoma are mentioned in this article, from which T crassipes represents a new record for Spain and T aff. bruchi is mentioned for the second time. Other common species such as T brumale, T caespitosum, T cyclophorum, T fimbriatum, T giovanellae, T kotlabae, T lloydii, T subsquamosum and T squamosum are recorded in new localities, too.Se mencionan once taxones de Tulostoma en este artículo, entre los cuales destaca T crassipes como especie nueva para España y T aff. bruchi que se cita por segunda vez. Ademas, se aportan datos nuevos sobre la distribución geografica de otros taxones frecuentes, tales como: T brum a/e, T caespitosum, T cyclophorum, T fimbriatum, T giovanellae, T kotlabae, T lloydii, T squamosum y T subsquamosu

Macowanites ammophilus (Russalales) a new combination based on new evidence

Macowanites ammophilus (Russulales) una nueva combinación basada en nuevos datos . Después de estudiar abundante material procedente de nuevas recolecciones, Gymnomyces ammophilus se transfiere al género Macowanites, basandonos en los nuevos datos morfológicos y genéticos encontrados. Como consecuencia, se presenta una nueva descripción de este taxon.Macowanites ammophilus (Russulales) a new combination based on new evidence. After studying abundant new collections, Gymnomyces ammophilus is transferred to the genus Macowanites based on the emergence of new data on morphological and genetic characters. A redescription of this taxon is given

Macowanites ammophilus (Russalales) a new combination based on new evidence

Macowanites ammophilus (Russulales) una nueva combinación basada en nuevos datos . Después de estudiar abundante material procedente de nuevas recolecciones, Gymnomyces ammophilus se transfiere al género Macowanites, basandonos en los nuevos datos morfológicos y genéticos encontrados. Como consecuencia, se presenta una nueva descripción de este taxon.Macowanites ammophilus (Russulales) a new combination based on new evidence. After studying abundant new collections, Gymnomyces ammophilus is transferred to the genus Macowanites based on the emergence of new data on morphological and genetic characters. A redescription of this taxon is given

Tratamiento de las fracturas conminutas de cabeza radial mediante exéresis cabeza radial: resultados a largo plazo de 18 casos

La resección de la cabeza radial en las fracturas conminutas supone una opción de tratamiento comúnmente aceptada. El objetivo de este estudio es la evolución de los resultados a largo plazo tras escisión de la cabeza radial. Se realizó un estudio prospectivo en 18 pacientes con fracturas Mason tipo III y IV. La media de edad fue de 50 años con un tiempo medio de seguimiento de 6,8 años. Sólo 4 pacientes presentaron una pérdida de 15 grados o más de la extensión. Se produjo una pérdida den la pronación y supinación de 3,7º y 8,4 respectivamente. De acuerdo a la clasificación funcional utilizada, la media según EMPS fue de 83,3 con un 88,3% de resultados satisfactorios y según la HSSS la media fue de 71,1 con un 94% de excelentes o buenos resultados.Radial head resection is the accepted treatment of comminuted radial-head fractures in adults. The purpose of the present study was to evaluate the long-term outcomes of primary radial head excision. A retrospective study was undertaken of 18 patients with Mason type III and IV. The average age at operation was 50 years and the average length of follow-up was 6,8 years. Only four patients lost 15 degrees or more of extension of the elbow. Pronation and supination were decreased by an average of 3,7º and 8,4º respective. According to the functional classification that we use, the average of EMPS score was 83,3 with a 88,3% of satisfactory results and the average of HSSS score was 71,1 with a 94% of excellent o good results

Nuevos datos sobre el género Tulostoma (Gasteromycetes) en España. IV

Eleven taxa of Tulostoma are mentioned in this article, from which T crassipes represents a new record for Spain and T aff. bruchi is mentioned for the second time. Other common species such as T brumale, T caespitosum, T cyclophorum, T fimbriatum, T giovanellae, T kotlabae, T lloydii, T subsquamosum and T squamosum are recorded in new localities, too.Se mencionan once taxones de Tulostoma en este artículo, entre los cuales destaca T crassipes como especie nueva para España y T aff. bruchi que se cita por segunda vez. Ademas, se aportan datos nuevos sobre la distribución geografica de otros taxones frecuentes, tales como: T brum a/e, T caespitosum, T cyclophorum, T fimbriatum, T giovanellae, T kotlabae, T lloydii, T squamosum y T subsquamosu

Massive Loss of Proprioceptive Ia Synapses in Rat Spinal Motoneurons after Nerve Crush Injuries in the Postnatal Period

Altres ajuts: NIH-NINDS R01 NS11196Peripheral nerve injuries (PNIs) induce the retraction from the ventral horn of the synaptic collaterals of Ia afferents injured in the nerve, effectively removing Ia synapses from α-motoneurons. The loss of Ia input impairs functional recovery and could explain, in part, better recovery after PNIs with better Ia synaptic preservation. Synaptic losses correlate with injury severity, speed, and efficiency of muscle reinnervation and requires ventral microglia activation. It is unknown whether this plasticity is age dependent. In neonates, axotomized motoneurons and sensory neurons undergo apoptosis, but after postnatal day 10 most survive. The goal of this study was to analyze vesicular glutamate transporter 1 (VGluT1)-labeled Ia synapses (which also include II afferents) after nerve crush in 10 day old rats, a PNI causing little Ia/II synapse loss in adult rats. We confirmed fast and efficient reinnervation of leg muscles; however, a massive number of VGluT1/Ia/II synapses were permanently lost. This synapse loss was similar to that after more severe nerve injuries involving full transection in adults. In adults, disappearance of ventrally directed Ia/II collaterals targeting α-motoneurons was associated with a prolonged microglia reaction and a CCR2 mechanism that included infiltration of CCR2 blood immune cells. By contrast, microgliosis after P10 injuries was fast, resolved in about a week, and there was no evidence of peripheral immune cell infiltration. We conclude that VGluT1/Ia/II synapse loss in young animals differs in mechanism, perhaps associated with higher microglia synaptic pruning activity at this age and results in larger losses after milder nerve injuries