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1.
Rev Sci Instrum ; 93(9): 093508, 2022 Sep 01.
Article in English | MEDLINE | ID: mdl-36182487

ABSTRACT

This paper describes two new helical arrays of magnetic coils recently installed inside the TJ-II vacuum vessel. Their main objective is the precise measurement of the spatial periodicity of the magnetohydrodynamic perturbations usually found in the TJ-II plasmas. Given the high probability of coil failures due to the harsh plasma environment and in view of the extremely difficult access to the TJ-II vessel interior for maintenance, the coil system has been divided in two quasi-identical helical arrays. Both arrays consist of 32 triaxial sensors measuring orthogonal components of the local magnetic field along an ideal helical path whose trajectory runs close to the plasma edge. A description of the main characteristics of coils and arrays as well as their nominal positioning along an ideal helical path, inside the vessel, is given. A precise experimental determination of the real spatial orientation of the coils is performed by comparing the signals measured in current ramp-up and ramp-down experiments with calculations based on a filamentary model for the TJ-II magnetic coils. After this fine calibration procedure, it is possible to analyze the dependence of the amplitude of the measured magnetic field and its fluctuations as a function of the coil distance to the last closed flux surface. The study of the phase evolution of the parallel and perpendicular oscillatory components is also enabled. Finally, two examples of mode number determination are shown. One corresponds to a low frequency mode appearing in pure electron cyclotron resonance heating plasma, and the other one shows several modes observed during combined injection of both co and counter neutral beams and identified as shear Alfvén waves.

2.
An. pediatr. (2003, Ed. impr.) ; 82(3): 183-191, mar. 2015. graf, tab
Article in Spanish | IBECS | ID: ibc-133788

ABSTRACT

INTRODUCCIÓN: El objetivo de esta investigación es contribuir al conocimiento de la conducta motora fetal humana espontánea normal durante el 2.◦ trimestre de gestación. Se focaliza sobre 5 patrones de movimiento fetal: sobresaltos masivos (SM), ritmias axo-rizomélicas (RAR), estiramientos axiales (EA), movimientos generales (MG) y excursiones diafragmáticas (ED). MÉTODOS: Se ha observado la motricidad fetal espontánea, mediante ecografía obstétrica en 2 D, en una cohorte de 13 sujetos, en las semanas 12, 16, 20 y 24 de gestación. Constituye criterio de inclusión comprobar posteriormente la normalidad del estado neurológico neonatal a término y del desarrollo motor y cognitivo hasta la edad de 5 a˜nos. RESULTADOS: Los 5 patrones de movimiento citados se observan en todos los fetos durante el 2.◦ trimestre gestacional, pero su presencia y cualidad varían con la edad. Los movimientos fásicos SM y RAR son prominentes en las semanas 12 y 16 de gestación; en cambio, los movimientos prolongados EA y MG poseen mayor incidencia, duración, extensión y complejidad en las semanas 20 y 24. Las ED aumentan su incidencia a lo largo del 2.◦ trimestre, generalmente en series de 2-6 excursiones, con amplitud irregular. El ritmo cardiaco se acelera durante los periodos de movimiento fetal, frente al estado de reposo. CONCLUSIONES: Los 5 patrones de conducta estudiados ecográficamente reflejan el progresivo afinamiento de generadores de patrones motores en el sistema nervioso humano normal durante el 2.◦ trimestre de gestación. Llamamos la atención sobre las RAR, no diferenciadas en otros estudios


INTRODUCTION: The aim of this research is to contribute to knowledge of the normal spontaneous motor behavior of the human fetus during the second trimester of pregnancy. This study focuses on five patterns of spontaneous fetal movement: startle (S), axo-rhizomelic rhythmia (ARR), axial stretching (AS), general movement (GM), and diaphragmatic contraction (DC). METHODS: A cohort of 13 subjects was followed up using 2 D obstetrical ultrasound images at 12, 16, 20, and 24 weeks of gestation. As inclusion criteria, neonatal neurological examination and general movements after eutocic delivery at term were normal in all of the subjects, and their neuromotor and cognitive development until the end of pre-school age were also normal. RESULTS: All these five motor patterns are present at the beginning of the 2nd gestational trimester, but their quantitative and qualitative traits are diverse according to gestational ages. The phasic, isolated or rhythmically repeated movements, S and ARR, are prominent at 12 and 16 weeks of gestation, and then their presence gradually diminishes. By contrast, tonic and complex AS and GM movements increase their presence and quality at 20 and 24 weeks. RAR constitute a particular periodic motor pattern not described in previous literature. Moreover, the incidence of DC is progressive throughout the trimester, in clusters of 2-6 arrhythmic and irregular beats. Fetal heart rate increases during fetal motor active periods. CONCLUSIONS: All five normal behavioral patterns observed in the ultrasounds reflect the progressive tuning of motor generators in human nervous system during mid-pregnancy


Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Fetal Movement , Pregnancy Trimester, Second , Ultrasonography, Prenatal
3.
An Pediatr (Barc) ; 82(3): 183-91, 2015 Mar.
Article in Spanish | MEDLINE | ID: mdl-25001373

ABSTRACT

INTRODUCTION: The aim of this research is to contribute to knowledge of the normal spontaneous motor behavior of the human fetus during the second trimester of pregnancy. This study focuses on five patterns of spontaneous fetal movement: startle (S), axo-rhizomelic rhythmia (ARR), axial stretching (AS), general movement (GM), and diaphragmatic contraction (DC). METHODS: A cohort of 13 subjects was followed up using 2D obstetrical ultrasound images at 12, 16, 20, and 24 weeks of gestation. As inclusion criteria, neonatal neurological examination and general movements after eutocic delivery at term were normal in all of the subjects, and their neuromotor and cognitive development until the end of pre-school age were also normal. RESULTS: All these five motor patterns are present at the beginning of the 2(nd) gestational trimester, but their quantitative and qualitative traits are diverse according to gestational ages. The phasic, isolated or rhythmically repeated movements, S and ARR, are prominent at 12 and 16 weeks of gestation, and then their presence gradually diminishes. By contrast, tonic and complex AS and GM movements increase their presence and quality at 20 and 24 weeks. RAR constitute a particular periodic motor pattern not described in previous literature. Moreover, the incidence of DC is progressive throughout the trimester, in clusters of 2-6 arrhythmic and irregular beats. Fetal heart rate increases during fetal motor active periods. CONCLUSIONS: All five normal behavioral patterns observed in the ultrasounds reflect the progressive tuning of motor generators in human nervous system during mid-pregnancy.


Subject(s)
Fetal Movement , Ultrasonography, Prenatal , Adult , Female , Humans , Longitudinal Studies , Pregnancy , Pregnancy Trimester, Second , Prospective Studies , Young Adult
4.
Clín. investig. ginecol. obstet. (Ed. impr.) ; 41(4): 146-150, oct.-dic. 2014. ilus, tab
Article in Spanish | IBECS | ID: ibc-128904

ABSTRACT

Evaluar la utilidad de un separador semiautomático durante intervenciones ginecobstétricas. Material y métodos El estudio fue abierto, prospectivo, longitudinal y exploratorio, el separador fue evaluado en intervenciones quirúrgicas. Muestra: 100 pacientes; 45 con antecedentes de cesárea, 49 pacientes con obesidad, 36 con sobrepeso, 10 normales. Intervenciones quirúrgicas realizadas: 82 por vía abdominal, 18 por vía vaginal. Médicos participantes: 14 especialistas en ginecobstetricia, 86 médicos residentes. Análisis estadístico: se utilizó el programa SPSS. Resultados La articulación, desarticulación, colocación y extracción del separador fue satisfactoria en 98 intervenciones. Hubo un caso de inestabilidad y otro donde la amplitud fue insuficiente. Las intervenciones vaginales requirieron un solo cirujano. Hubo reducción en el tiempo de duración de la cirugía, en la pérdida de sangre, menor cantidad de anestesia y material de curación. Conclusión El separador Soriano fue útil en el 98% de los casos lo que mejoró la calidad y tiempo de las intervenciones quirúrgicas


To evaluate the usefulness of automatic surgical retractor in obstetric and gynecological interventions. Material and methods Open, prospective, longitudinal, exploratory study to evaluate the retractor in surgical interventions.Sample100 patients: 45 patients with previous cesarean sections, 49 patients classified as obese, 36 who were overweight, and 10 with normal weight. Surgical interventions: 82 abdominal, 18 vaginal. Participating physicians14 obstetric and gynecological surgeons, and 86 residents in gynecology and obstetric. Statistical analysis Was used the SPSS program. Results Articulation, disarticulation, collocation and retraction of the retractor was satisfactory in 98 interventions. There was one case of instability, and another of insufficient width. Vaginal interventions required only one operator. The instrument reduced the duration of surgery, blood loss, and the use of anesthetics and other material. Conclusion The Soriano surgical retractor was useful in 98% of the patients and improved the quality and time of the surgical interventions


Subject(s)
Humans , Female , Obesity, Morbid/surgery , Gynecologic Surgical Procedures/methods , Surgical Instruments , Abdomen/surgery , Prospective Studies , Operative Time , Postoperative Complications
5.
Nutr Hosp ; 29(6): 1305-10, 2014 Jun 01.
Article in Spanish | MEDLINE | ID: mdl-24972467

ABSTRACT

INTRODUCTION: A food graph is a guide that helps individuals controlling and improving their feeding quality; it provides recommendations on what should a particular population eat with a correct selection of the nutrients to be consumed. OBJECTIVE: The aim of this publication was to create a food education tool for bariatric surgery patients in the long run of the post-surgical period. METHODS: Graduates in nutrition and physicians specialized in nutrition were invited to participate in workshops at a meeting that took place in 2011. The scientific bases were the First Argentinean Consensus on Nutrition in Bariatric Surgery and the Feeding Guidelines for Normal Argentinean Population. In this way, these guidelines are adapted to the Argentinean population submitted to bariatric surgery, together with the experience of the healthcare professionals. RESULT: This yielded an oval-shaped food graph, an adaptation of the Feeding Guidelines for Normal Argentinean Population, 12 messages or recommendations focused on individuals with bariatric surgery, a recommended menu with a mean energetic value of 1,273 calories per day, 145 g of carbohydrates, 76 g of proteins and 43.2 g of fat; 45.5% of the calories coming from carbohydrates, 24% from proteins, and 30.5% from fat, with 1,160 mg of calcium.


Introducción: Una gráfica alimentaria es una guía que ayuda a los individuos a controlar y a mejorar la calidad de su alimentación; ofrece pautas sobre lo que debe comer una determinada población en términos de alimentos dando un marco para la correcta selección de los nutrientes a consumir. Objetivo: El objetivo de la presente publicación fue crear una herramienta de educación alimentaria destinada a pacientes de cirugía bariátrica para el postoperatorio en el largo plazo. Métodos: Se convocó a participar en mesas de trabajo a licenciados en nutrición y médicos especialistas en nutrición en un congreso realizado en el 2011. Se tomó como base científica el Primer Consenso Argentino de Nutrición en Cirugía Bariátrica y las "Guías alimentarias para la Población Argentina normal". De esta forma se adapta la misma a la población argentina con cirugía bariátrica sumada a la experiencia de los profesionales. Resultado: Como resultado se obtuvo un gráfica alimentaria en forma de óvalo, adaptación de la gráfica de las "Guías alimentarias para la población argentina", 12 mensajes o recomendaciones dirigidas a individuos con CB, una sugerencia de menú que responde a un valor calórico promedio de 1.273 calorías diarias, 145 g de carbohidratos, 76 g de proteínas y 43,2 g de grasas; 45,5% de calorías proveniente de los carbohidratos, 24% de calorías proveniente de las proteínas y 30,5 % de calorías proveniente de las grasas, 1.160 mg de calcio.


Subject(s)
Bariatric Surgery/statistics & numerical data , Nutritional Status , Argentina/epidemiology , Diet , Eating , Guidelines as Topic , Humans , Patient Education as Topic , Recommended Dietary Allowances
6.
Nutr. hosp ; 29(6): 1305-1310, jun. 2014. ilus
Article in Spanish | IBECS | ID: ibc-143872

ABSTRACT

Introducción: Una gráfica alimentaria es una guía que ayuda a los individuos a controlar y a mejorar la calidad de su alimentación; ofrece pautas sobre lo que debe comer una determinada población en términos de alimentos dando un marco para la correcta selección de los nutrientes a consumir. Objetivo: El objetivo de la presente publicación fue crear una herramienta de educación alimentaria destinada a pacientes de cirugía bariátrica para el postoperatorio en el largo plazo. Métodos: Se convocó a participar en mesas de trabajo a licenciados en nutrición y médicos especialistas en nutrición en un congreso realizado en el 2011. Se tomó como base científica el Primer Consenso Argentino de Nutrición en Cirugía Bariátrica y las «Guías alimentarias para la Población Argentina normal». De esta forma se adapta la misma a la población argentina con cirugía bariátrica sumada a la experiencia de los profesionales. Resultado: Como resultado se obtuvo un gráfica alimentaria en forma de óvalo, adaptación de la gráfica de las «Guías alimentarias para la población argentina», 12 mensajes o recomendaciones dirigidas a individuos con CB, una sugerencia de menú que responde a un valor calórico promedio de 1.273 calorías diarias, 145 g de carbohidratos, 76 g de proteínas y 43,2 g de grasas; 45,5% de calorías proveniente de los carbohidratos, 24% de calorías proveniente de las proteínas y 30,5 % de calorías proveniente de las grasas, 1.160 mg de calcio (AU)


Introduction: A food graph is a guide that helps individuals controlling and improving their feeding quality; it provides recommendations on what should a particular population eat with a correct selection of the nutrients to be consumed. Objective: The aim of this publication was to create a food education tool for bariatric surgery patients in the long run of the post-surgical period. Methods: Graduates in nutrition and physicians specialized in nutrition were invited to participate in workshops at a meeting that took place in 2011. The scientific bases were the First Argentinean Consensus on Nutrition in Bariatric Surgery and the Feeding Guidelines for Normal Argentinean Population. In this way, these guidelines are adapted to the Argentinean population submitted to bariatric surgery, together with the experience of the healthcare professionals. Result: This yielded an oval-shaped food graph, an adaptation of the Feeding Guidelines for Normal Argentinean Population, 12 messages or recommendations focused on individuals with bariatric surgery, a recommended menu with a mean energetic value of 1,273 calories per day, 145 g of carbohydrates, 76 g of proteins and 43.2 g of fat; 45.5% of the calories coming from carbohydrates, 24% from proteins, and 30.5% from fat, with 1,160 mg of calcium (AU)


Subject(s)
Humans , Recommended Dietary Allowances , Bariatric Surgery/rehabilitation , Argentina , Menu Planning/methods , Food Guide , Nutritional Support/instrumentation , Diet/methods
7.
Rev Neurol ; 44 Suppl 3: S39-42, 2007 May 21.
Article in Spanish | MEDLINE | ID: mdl-17523109

ABSTRACT

INTRODUCTION AND DEVELOPMENT: Some of the most known classical forms for neurological examination of neonates and infants are reviewed, and their predictive qualities are discussed. Moreover the Prechtl's method of observation of general movements in preterm and term neonates and young infants up to four months posterm is particularly powerful for prediction of normality or abnormality of the future motor control. CONCLUSION: In general, the clinical approach is the principal tool in developmental neurology, even if it must be complemented by technological examinations, specially neuroimaging.


Subject(s)
Developmental Disabilities/diagnosis , Developmental Disabilities/physiopathology , Diagnostic Techniques, Neurological , Early Diagnosis , Humans , Infant , Infant, Newborn , Movement , Prognosis
8.
Rev. neurol. (Ed. impr.) ; 44(supl.3): s39-s42, 15 mayo, 2007.
Article in Es | IBECS | ID: ibc-055075

ABSTRACT

Introducción y desarrollo. Se revisan algunos de los protocolos clásicos más difundidos para el examen neurológico de neonatos y lactantes y se estudian sus cualidades pronósticas del desarrollo. Una técnica que ha emergido con particular fuerza en los últimos veinte años es el método de observación de los movimientos generales, que posee una alta fiabilidad para predecir, desde el primer trimestre de vida, la normalidad o el riesgo de patología del control motor en años ulteriores sin necesidad de manipular al bebé. Conclusión. Los métodos clínicos siguen siendo la mejor herramienta en neurología del desarrollo, ya que permiten discernir y ver emerger las formas de comportamiento normal o anómalo en los niños con riesgo, aunque los hallazgos deben complementarse con los datos que nos ofrece la tecnología actual, especialmente la neuroimagen (AU)


Introduction and development. Some of the most known classical forms for neurological examination of neonates and infants are reviewed, and their predictive qualities are discussed. Moreover the Prechtl’s method of observation of general movements in preterm and term neonates and young infants up to four months posterm is particularly powerful for prediction of normality or abnormality of the future motor control. Conclusion. In general, the clinical approach is the principal tool in developmental neurology, even if it must be complemented by technological examinations, specially neuroimaging (AU)


Subject(s)
Infant, Newborn , Infant , Humans , Movement Disorders/diagnosis , Developmental Disabilities/diagnosis , Reproducibility of Results , Prognosis
9.
Rev. Med. Univ. Navarra ; 49(1): 53-58, ene.-mar. 2005. ilus, tab
Article in Es | IBECS | ID: ibc-69961

ABSTRACT

Los trastornos del sueño son un problema prevalente en la atención primaria infantil. La alteración de la calidad y de la cantidad del sueño puede tener repercusiones físicas y cognitivas en el niño. El Síndrome de Apneas Obstructivas del Sueño (SAOS) es un proceso que se produce como consecuencia de una obstrucción prolongada(durante al menos 10 segundos) de la vía aérea superior. Puede dar lugar al desarrollo de alteraciones físicas y cognitivas. Sus manifestaciones clínicas son sutiles en la niñez. La polisomnografía nocturna es la técnica recomendada para diagnosticar los trastornos delsueño. Se han sugerido otros métodos, que pueden servir como “screening” para el estudio del SAOS. Existen tres tipos de abordaje terapéutico: el quirúrgico, el médico y el farmacológico. Dado que la principal causa de SAOS en los niños es la hipertrofia adenoamigdalar, la adenoamigdalectomía es el tratamiento más utilizado. Es importante realizar un seguimiento a largo plazo de los niños con SAOS, con el fin de detectar recidivas del cuadro clínico en la adolescencia o en la edad adulta


Introduction: Sleep disorders are frequent in infancy and childhood. Although obstructive sleep apnoea (OSA) is not as prevalent as other sleep disorders in childhood, this review is focused on OSA as it has a larger impact on children's health than other sleep disturbances.Obstructive sleep apnoea: OSA is caused by a prolonged upper respiratory airway obstruction during sleep. Symptoms in children are subtle and may pass unrecognised. Subsequent changes in quality and quantity of sleep may have an impact on children's cognitive and physical growth. Diagnosis: Polysomnography is the gold standard technique for OSA diagnosis, although other methods can be used as screening tools. Treatment: Treatment may be surgical, medical or pharmacological.Surgical approach with adenotonsillectomy is the most frequently indicated, as adenotonsillar hypertrophy is the commonest cause of OSA in childhood. Prognosis: Outcome of childhood OSA in adulthood is not well known.Long term follow-up of treated patients throughout adolescence and adulthood is indicated to detect relapses.Conclusions: OSA in childhood may have an impact on physical and cognitive development. Early diagnosis and treatment and adequate follow up are important to prevent physical disturbances secondary to chronic hypoxemia and to avoid cognitive deficits associated with disrupted sleep architecture (AU)


Subject(s)
Humans , Male , Female , Child , Respiratory Tract Diseases/complications , Sleep Wake Disorders/complications , Polysomnography , Cognition Disorders/diagnosis , Attention Deficit Disorder with Hyperactivity/complications
10.
Rev. méd. domin ; 58(1): 33-4, ene.-abr. 1997. ilus
Article in Spanish | LILACS | ID: lil-269212

ABSTRACT

El himen imperforado es una anomalía poco frecuente y más aún con ausencia de vagina. Este caso se trata de una femenina de 28 años, cuyo chequeo ginecológico comenzó desde los 16 años, cuando acudió al médico por presentar amenorrea primaria y dolor en hipogastrico de aparición mensual. Motivada por el matrimonio, la paciente recurre al médico para resolver su problema a la cual se le sometió a diversos estudios por el departamento de ginecología, decidiendo así hacer una recección de himen y contruir una neovagina. Actualmente la paciente refiere relaciones sexuales estable


Subject(s)
Humans , Female , Adult , Vagina/abnormalities
11.
J Am Health Care ; 4(5): 22-6, 1994.
Article in English | MEDLINE | ID: mdl-10142812

ABSTRACT

A fervent anti-immigrant sentiment is picking up momentum, and it is reflected in state and federal legislative proposals, including those addressing health reform. If these bills become law, including a California initiative, doctors and nurses could be turned into border patrol guards, and as many as one million legal immigrants could be denied non-emergency medical care.


Subject(s)
Emigration and Immigration/legislation & jurisprudence , Health Services Accessibility/legislation & jurisprudence , Mexican Americans , Public Assistance/legislation & jurisprudence , California , Politics , State Government , United States
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