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Association of homocysteine and smoking with cerebral microemboli in patients with mechanical heart valves:a transcranial Doppler study

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Stroke & Vascular Neurology 2017年第4期2卷 199-204页

作者： Alicia Mattia M Reza Azarpazhooh claudio munoz Chrysi Bogiatzi Mackenzie A Quantz J David Spence Stroke Prevention and Atherosclerosis Research Centre Robarts Research InstituteWestern UniversityLondonOntarioCanada Department of Neurology McMaster UniversityHamiltonOntarioCanada Division of Epidemiology and Biostatistics Western UniversityLondonOntarioCanada Division of Neurology Western UniversityLondonOntarioCanada Division of Cardiac Surgery Western UniversityLondonOntarioCanada Division of Clinical Pharmacology Western UniversityLondonOntarioCanada

Objectives Microembolic signals(MES)on transcranial Doppler(TCD)predict stroke and cognitive *** levels of total homocysteine(tHcy),a prothrombotic factor,are higher in patients with microemboli in carotid stenosis and in patients with paradoxical *** this study we assessed the association between the level of tHcy and the number of MES in patients with mechanical heart valves(MHVs).Methods TCD monitoring was performed to detect MES before and after breathing 100% oxygen and repeated every 2-4 weeks up to six *** Twenty-five patients with MHVs(mean age:63.60±10.15 years)participated in this study;15 were men(66.47±7.25 years)and 10 were women(59.30±12.60 years).In total,there were 126 study *** multiple regression,higher tHcy was associated with more MES in both preoxygenation(OR 1.34(95%CI 1.07 to 1.68,P=0.009))and postoxygenation(OR 1.40(95% CI 1.07 to 1.83,P=0.01))*** smoking and the length of time between the operation and monitoring also correlated with a higher number of MES before and after breathing oxygen,particularly in *** Higher tHcy and smoking were associated with a higher MES count in both preoxygenation and postoxygenation *** smoking can be stopped and hyperhomocysteinaemia is treatable,these are clinically important findings.

关键词： patients assessed cerebral

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Study of Electromagnetic Compatibility in Hospital Environments

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Journal of Electromagnetic Analysis and Applications 2014年第7期6卷 141-155页

作者： Oscar Gutierrez Miguel Angel Navarro Francisco Saez de Adana Adolfo Escobar Maria E.Moncada claudio Marcelo munoz Department of Computer Science Universidad de AlcalaAlcala de HenaresSpain Faculty of Engineering Instituto Tecnologico MetropolitanoMedellinColombia CAERCEM-Department of Electrical Engineering Instituto Tecnologico de Buenos AiresBuenos AiresArgentima

This paper presents a study on the effects of radiation from electronic equipment in hospitals. This study was performed in Argentinean, Colombian and Spanish hospitals. The work consists of two parts: a survey to determine the hospital personnel’s knowledge of the problem and a technical part consisting of a measurements campaign to determine the levels of radiated electrical and magnetic fields in several hospitals due to the presence of electromagnetic interferences, such as the use of mobile phones. The study of this problem has been of special interest in countries such as the USA and Canada, and this paper attempts to convey the necessity of creating regulations that can be applied to the hospitals of the countries analyzed. More than fifty hospitals were studied in these three countries, considering the following aspects: the hospital personnel’s awareness of the problem, whether the hospitals have performed previous studies of this type, the appearance of problems in medical equipment due to this interference, the origin of the interference, and the failures that have appeared in computers due to electromagnetic interference. The results show that, most hospitals have a lack of knowledge regarding this issue and that field levels above those allowed by international regulations are present. Therefore, a regulation must be established to avoid the problem.

关键词： Electromagnetic Compatibility Radiated Emissions Magnetic Field Measurements Electric Field Measurements

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Unveiling the controversial mechanism of reversible Na storage in TiO2 nanotube arrays： Amorphous versus anatase TiO2

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Nano Research 2017年第8期10卷 2891-2903页

作者： Federico Bella Ana B. munoz-Garcia Giuseppina Meligrana Andrea Lamberti Matteo Destro Michele Pavone claudio Gerbaldi GAME Lab CHENERGY Group Department of Applied Science and Technology - DISAT Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy Department of Chemical Sciences University of Naples Fedefico II Via Cintia 21 University Campus of Monte Sant'Angelo 80126 Napoli Italy MPMNT Group Department of Applied Science and Technology - DISAT Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy LITHOPS S.r.l. Strada del Portone 61 10137 Torino Italy

Due to their inherent safety, low cost, and structural stability, TiO2 nanostructures represent a suitable choice as anode materials in sodiumion batteries. In the recent years, various hypotheses have been proposed regarding the actual mechanism of the reversible insertion of sodium ions in the TiO2 structure, and previous reports are often controversial in this respect. Interestingly, when tested as binder- and conducting additive-free electrodes in laboratory-scale sodium cells, amorphous and crystalline （anatase） TiO2 nanotubular arrays obtained by simple anodic oxidation exhibit peculiar and intrinsically different electrochemical responses. In particular, after the initial electrochemical activation, anatase TiO2 shows excellent rate capability and very stable long-term cycling performance with larger specific capacities, and thus a clearly superior response compared with the amorphous counterpart. To obtain deeper insight, the present materials are thoroughly characterized by scanning electron microscopy and ex situ X-ray diffraction, and the insertion of sodium ions in the TiO2 bulk phases is systematically modeled by density functional theory calculations. The present results may contribute to the development of more systematic screening approaches to identify suitable active materials for highly efficient sodium-based energy storage systems.

关键词： sodium battery TiO2 nanotube array anode modeling insertion mechanism

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Interprofessional education in nursing: The impact of collaboration between physical and mental health care professionals

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International Journal of Nursing Sciences 2020年第3期7卷 262-268页

作者： Cristina Amparo munoz-Rubilar Carolina Pezoa Carrillos claudio Barrales Díaz Universidad Central de Chile SabtiagoChile

Objectives:lnterprofessional collaboration in the training of nursing and psychology students helps provide students of both disciplines with the ability and competences they need to best attend to their *** study implemented and analyzed a method for developing the competences of each discipline in a scenario of joint clinical simulation that incorporates mental and physical health simultaneously,and measured the caring ability of the participating ***:Participants took a self-applied survey measuring their own caring ***,a clinical simulation was performed where nursing students performed clinical interviews on psychology students,who acted as standardized *** abilities were measured in the nursing students,and the psychology students implemented an intervention service measuring caring ability and brief-debrief simulation by coaching to nursing ***:The results indicated that the self-applied questionnaire of caring ability resulted in scores significantly higher than what was measured by ***:The results contribute to the development of protocols,training and collaborative work practices in interprofessional education,which allow the scaling of these competences.

关键词： Caring ability Mental health Nursing education Nursing students Simulation training Surveys and questionnaires

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Utility of the“RMSSD-Slope”to Assess the Internal Load in Different Sports Situations

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Health 2019年第6期11卷 683-691页

作者： Jose F.Ruso-Alvarez claudio Nieto-Jiménez Alejandro munoz-López Jose Naranjo Orellana Pablo de OlavideUniversity SevillaSpain Universidad del Desarrollo SantiagoChile

The control of training load has become a very interesting field for investigation in sports, but few tools are used to assess internal training load (ITL). The aim of this study is to use a post-exercise analysis methodology in different athletes and situations to establish its utility and reliability as a measure of ITL. In a retrospective review, we analysed 112 measurements of 74 subjects (38 men and 36 women) grouped in: University students (UNI);national team (FUTSAL 1);university team (FUTSAL 2);athletes (ATL);badminton players (BADM). Measures of Heart Rate Variability (HRV) were made with a Polar V800 with a thoracic band H10, during 5 minutes in a seated position after exercise. We calculated the Root Mean Square of the successive differences between adjacent RR intervals (RMSSD) and its slope from exercise to recovery. Measurements from UNI, FUTSAL-2, ATL-M and ATL-F were grouped into three categories of intensity (60%, 75% and 100%). RMSSD-Slope values were lower as intensity increased but different for every subject. In the BADM and FUTSAL-1 groups, RMSSD-Slope was progressively lower after consecutive matches for every player. The RMSSD-Slope seems to be a very accurate method to assess ITL.

关键词： HRV Training Load rMSSD Recovery

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Exposure to Fine Particles by Mine Tailing and Lung Function Effects in a Panel of Schoolchildren,Chanaral,Chile

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Journal of Environmental Protection 2015年第2期6卷 118-128页

作者： Karla Yohannessen Vasquez Sergio Alvarado Orellana Stephanie Mesias Monsalve Jose Klarian Vergara claudio Silva Zamora Daniella Vidal munoz Dante D.Caceres Lillo Programa de Salud Ambiental Escuela de Salud PublicaFacultad de MedicinaUniversidad de ChileSantiago de ChileChile Grups de Recerca d’America i AfricaLlatines Unitat de BioestadisticaFacultat de MedicinaUniversitat Autonoma de BarcelonaBarcelonaEspana Facultad de Ciencias de la Salud Universidad de TarapacaAricaChile Departamento de Prevencion de Riesgos y Medio Ambiente Universidad Tecnologica MetropolitanaSantiagoChile

There is much literature on the effects of fine particulate matter (PM2.5) on respiratory and cardiovascular health. However, few studies have evaluated the impact of PM2.5 on a population living in the vicinity of a massive deposit of mine tailings. A longitudinal panel study was performed to evaluate the association between exposure to PM2.5 and acute effects on lung function in schoolchildren from November 2012 to May 2013. Ambient levels of PM2.5 and its metal composition were measured. Lung function was evaluated using spirometric testing. Associations were quantified using GEE multilevel analysis controlling for confounders by using different lag time periods. The chemical characterization of PM2.5 had high levels of S > Na > Cl > Ca > Si > Fe > Al > Mg > K > Cu > Ti > and Zn, which would be associated with metals present in tailings. We found a negative association between the temporal variation of PM2.5 and changes in lung function specifically on forced vital capacity. Our results suggest that schoolchildren exposed to fine particulate matter from tailings deposited in the bay of Chanaral have their forced vital capacity decreased, which would affect their present and future lung development, increasing the risk of developing chronic respiratory diseases.

关键词： Mine Tailings Fine Particulate Matter Heavy Metals Lung Function Schoolchildren

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