Inductive sensor performance in partial discharges and noise separation by means of spectral power ratios.

Partial discharge (PD) detection is a standardized technique to qualify electrical insulation in machines and power cables. Several techniques that analyze the waveform of the pulses have been proposed to discriminate noise from PD activity. Among them, spectral power ratio representation shows great flexibility in the separation of the sources of PD. Mapping spectral power ratios in two-dimensional plots leads to clusters of points which group pulses with similar characteristics. The position in the map depends on the nature of the partial discharge, the setup and the frequency response of the sensors. If these clusters are clearly separated, the subsequent task of identifying the source of the discharge is straightforward so the distance between clusters can be a figure of merit to suggest the best option for PD recognition. In this paper, two inductive sensors with different frequency responses to pulsed signals, a high frequency current transformer and an inductive loop sensor, are analyzed to test their performance in detecting and separating the sources of partial discharges.

Expression of EPL1 from Trichoderma atroviride in Arabidopsis Confers Resistance to Bacterial and Fungal Pathogens.

During plant interaction with beneficial microorganisms, fungi secrete a battery of elicitors that trigger plant defenses against pathogenic microorganisms. Among the elicitor molecules secreted by Trichoderma are cerato-platanin proteins, such as EPL1, from Trichoderma atroviride. In this study, Arabidopsis thaliana plants that express the TaEPL1 gene were challenged with phytopathogens to evaluate whether expression of EPL1 confers increased resistance to the bacterial pathogen Pseudomonas syringae and the necrotrophic fungus Botrytis cinerea. Infection assays showed that Arabidopsis EPL1-2, EPL1-3, EPL1-4 expressing lines were more resistant to both pathogens in comparison to WT plants. After Pseudomonas syringae infection, there were reduced disease symptoms (e.g., small chlorotic spots) and low bacterial titers in the three 35S::TaEPL1 expression lines. Similarly; 35S::TaEPL1 expression lines were more resistant to Botrytis cinerea infection, showing smaller lesion size in comparison to WT. Interestingly, an increase in ROS levels was detected in 35S::TaEPL1 expression lines when compared to WT. A higher expression of SA- and JA-response genes occurred in the 35S::TaEPL1 lines, which could explain the resistance of these EPL1 expression lines to both pathogens. We propose that EPL1 is an excellent elicitor, which can be used to generate crops with improved resistance to broad-spectrum diseases.

Survey of psychiatrists and psychiatry residents in Colombia about their preventive and therapeutic practices in delirium.

OBJECTIVE: To describe pharmacological and non-pharmacological practices for delirium, carried out by psychiatry residents and psychiatrists in Colombia. METHODS: An anonymous survey was conducted based on the consensus of experts of the Liaison Psychiatry Committee of the Asociación Colombiana de Psiquiatría [Colombian Psychiatric Association] and on the literature review. It was sent by email to the association members. RESULTS: 101 clinicians participated. Non-pharmacological preventive measures such as psychoeducation, correction of sensory problems or sleep hygiene are performed by 70% or more. Only about 1 in 10 participants are part of an institutional multi-component prevention programme. The preventive prescription of drugs was less than 20%. Regarding non-pharmacological treatment, more than 75% recommend correction of sensory difficulties, control of stimuli and reorientation. None of the participants indicated that the care at their centres is organised to enhance non-pharmacological treatment. 17.8% do not use medication in the treatment of delirium. Those who use it prefer haloperidol or quetiapine, particularly in hyperactive or mixed motor subtypes. CONCLUSIONS: The practices of the respondents coincide with those of other experts around the world. In general, non-pharmacological actions are individual initiatives, which demonstrates the need in Colombian health institutions to commit to addressing delirium, in particular when its prevalence and consequences are indicators of quality of care.

Consensus of the Liaison-Psychiatry Committee of the Colombian Psychiatric Association on the Diagnosis and Treatment of Delirium in the Context of the COVID-19 Pandemic. / Consenso del Comité de Psiquiatría de Enlace de la Asociación Colombiana de Psiquiatría sobre el diagnóstico y tratamiento del delirium en el contexto de la pandemia por COVID-19.

The pandemic caused by the new coronavirus named SARS-CoV-2 poses unprecedented challenges in the health care. Among them is the increase in cases of delirium. The severe SARS-CoV-2 disease, COVID-19, has common vulnerabilities with delirium and produces alterations in organs such as the lungs or the brain, among others, which have the potential to trigger the mental disorder. In fact, delirium may be the first manifestation of the infection, before fever, general malaise, cough or respiratory disturbances. It is widely supported that delirium increases the morbidity and mortality in those who suffer from it during hospitalization, so it should be actively sought to carry out the relevant interventions. In the absence of evidence on the approach to delirium in the context of COVID-19, this consensus was developed on three fundamental aspects: diagnosis, non-pharmacological treatment and pharmacological treatment, in patients admitted to the general hospital. The document contains recommendations on the systematic use of diagnostic tools, when to hospitalize the patient with delirium, the application of non-pharmacological actions within the restrictions imposed by COVID-19, and the use of antipsychotics, taking into account the most relevant side effects and pharmacological interactions.

Survey of psychiatrists and psychiatry residents in Colombia about their preventive and therapeutic practices in delirium. / Encuesta a psiquiatras y residentes de psiquiatría en Colombia sobre sus prácticas preventivas y terapéuticas del delirium.

OBJECTIVE: To describe pharmacological and non-pharmacological practices for delirium, carried out by psychiatry residents and psychiatrists in Colombia. METHODS: An anonymous survey was conducted based on the consensus of experts of the Liaison Psychiatry Committee of the Asociación Colombiana de Psiquiatría [Colombian Psychiatric Association] and on the literature review. It was sent by email to the association members. RESULTS: 101 clinicians participated. Non-pharmacological preventive measures such as psychoeducation, correction of sensory problems or sleep hygiene are performed by 70% or more. Only about 1 in 10 participants are part of an institutional multi-component prevention programme. The preventive prescription of drugs was less than 20%. Regarding non-pharmacological treatment, more than 75% recommend correction of sensory difficulties, control of stimuli and reorientation. None of the participants indicated that the care at their centres is organised to enhance non-pharmacological treatment. 17.8% do not use medication in the treatment of delirium. Those who use it prefer haloperidol or quetiapine, particularly in hyperactive or mixed motor subtypes. CONCLUSIONS: The practices of the respondents coincide with those of other experts around the world. In general, non-pharmacological actions are individual initiatives, which demonstrates the need in Colombian health institutions to commit to addressing delirium, in particular when its prevalence and consequences are indicators of quality of care.

Consenso del Comité de Psiquiatría de Enlace de la Asociación Colombiana de Psiquiatría sobre el diagnóstico y tratamiento del delirium en el contexto de la pandemia por COVID-19 / Consensus of the Liaison-Psychiatry Committee of the Colombian Psychiatric Association on the Diagnosis and Treatment of Delirium in the Context of the COVID-19 Pandemic

RESUMEN La pandemia por el nuevo coronavirus denominado SARS-CoV-2 plantea retos sin precedentes en la atención de la salud. Entre ellos se cuenta el aumento en los casos de delirium. La enfermedad grave por SARS-CoV-2, COVID-19, tiene vulnerabilidades comunes con el delirium y produce alteraciones en órganos como el pulmón o el cerebro, entre otros, que tienen potencial para precipitar el trastorno mental; de hecho, este puede ser la primera manifestación de la infección, antes de la fiebre, el malestar general, la tos o las alteraciones respiratorias. Está ampliamente sustentado que el delirium incrementa la morbilidad y la mortalidad de quienes lo padecen durante una hospitalización, por lo que se debe buscar activamente para realizar las intervenciones pertinentes. Ante la ausencia de evidencia sobre el abordaje del delirium en el contexto de la COVID-19, se elaboró este consenso sobre tres aspectos fundamentales: diagnóstico, tratamiento no farmacológico y tratamiento farmacológico, en pacientes ingresados en el hospital general. El documento contiene recomendaciones sobre uso sistemático de herramientas diagnósticas, cuándo hospitalizar al paciente con delirium, la aplicación de acciones no farmacológicas dentro de las restricciones que impone la COVID-19 y la utilización de antipsicóticos teniendo en cuenta los efectos secundarios más relevantes y las interacciones farmacológicas.

ABSTRACT The pandemic caused by the new coronavirus named SARS-CoV-2 poses unprecedented challenges in the health care. Among them is the increase in cases of delirium. The severe SARS-CoV-2 disease, COVID-19, has common vulnerabilities with delirium and produces alterations in organs such as the lungs or the brain, among others, which have the potential to trigger the mental disorder. In fact, delirium may be the first manifestation of the infection, before fever, general malaise, cough or respiratory disturbances. It is widely supported that delirium increases the morbidity and mortality in those who suffer from it during hospitalization, so it should be actively sought to carry out the relevant interventions. In the absence of evidence on the approach to delirium in the context of COVID-19, this consensus was developed on three fundamental aspects: diagnosis, non-pharmacological treatment and pharmacological treatment, in patients admitted to the general hospital. The document contains recommendations on the systematic use of diagnostic tools, when to hospitalize the patient with delirium, the application of non-pharmacological actions within the restrictions imposed by COVID-19, and the use of antipsychotics, taking into account the most relevant side effects and pharmacological interactions.

Encuesta a psiquiatras y residentes de psiquiatría en Colombia sobre sus prácticas preventivas y terapéuticas del delirium / Survey of psychiatrists and psychiatry residents in Colombia about their preventive and therapeutic practices in delirium

RESUMEN Objetivo: describir las prácticas farmacológicas y no farmacológicas para el delirium, realizadas por residentes de psiquiatría y psiquiatras en Colombia. Métodos: encuesta anónima basada en el consenso de expertos del Comité de Psiquiatría de Enlace de la Asociación Colombiana de Psiquiatría y en la literatura. Enviada por correo electrónico a los adscritos a la asociación. Resultados: Participaron 101 clínicos. Las medidas preventivas no farmacológicas como psi-coeducación, corrección de problemas sensoriales o higiene del sueno son realizadas por el 70% o más. Solo cerca de uno de cada 10 hace parte de algún programa multicomponente preventivo institucional. La prescripción preventiva de fármacos fue menor del 20%. Respecto al tratamiento no farmacológico, más del 75% hace corrección de dificultades sensoriales, control de estímulos y reorientación. Nadie indicó que en su centro la atención esté organizada para potenciar el tratamiento no farmacológico. El 17,8% no usa fármacos en el tratamiento. Los que los usan prefieren haloperidol o quetiapina, especialmente en casos hiperactivos o mixtos. Conclusiones: Las prácticas de los encuestados coinciden con las de otros expertos en el mundo. En general, las acciones no farmacológicas son iniciativas individuales, lo que evidencia la necesidad de que las instituciones colombianas de salud se comprometan con el abordaje del delirium, especialmente cuando su prevalencia y consecuencias son indicadores de calidad en la atención.

ABSTRACT Objective: To describe pharmacological and non-pharmacological practices for delirium, carried out by psychiatry residents and psychiatrists in Colombia. Methods: An anonymous survey was conducted based on the consensus of experts of the Liaison Psychiatry Committee of the Asociación Colombiana de Psiquiatría [Colombian Psychiatric Association] and on the literature review. It was sent by email to the association members. Results: 101 clinicians participated. Non-pharmacological preventive measures such as psychoeducation, correction of sensory problems or sleep hygiene are performed by 70% or more. Only about 1 in 10 participants are part of an institutional multi-component prevention programme. The preventive prescription of drugs was less than 20%. Regarding non-pharmacological treatment, more than 75% recommend correction of sensory difficulties, control of stimuli and reorientation. None of the participants indicated that the care at their centres is organised to enhance non-pharmacological treatment. 17.8% do not use medication in the treatment of delirium. Those who use it prefer haloperidol or quetiapine, particularly in hyperactive or mixed motor subtypes. Conclusions: The practices of the respondents coincide with those of other experts around the world. In general, non-pharmacological actions are individual initiatives, which demonstrates the need in Colombian health institutions to commit to addressing delirium, in particular when its prevalence and consequences are indicators of quality of care.

Self-integrating inductive loop for measuring high frequency pulses.

High frequency pulses can be measured by means of inductive sensors. The main advantage of these sensors consists of non-contact measurements that isolate and protect measuring equipment. The objective of this paper is to present the implementation of an inductive sensor for measuring rapidly varying currents. It consists of a rectangular loop with a resistor at its terminals. The inductive loop gives the derivative of the current according to Faraday's law and the resistor connected to the loop modifies the sensor's frequency response to obtain an output proportional to the current pulse. The self-integrating inductive sensor was validated with two sensors, a non-inductive resistor and a commercial high frequency current transformer. The results were compared to determine the advantages and drawbacks of the probe as an adequate inductive transducer.