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1.
ACS Omega ; 9(7): 8037-8047, 2024 Feb 20.
Article in English | MEDLINE | ID: mdl-38405453

ABSTRACT

The decolorization of the Basic violet I (BVI) dye when interacted with a corona discharge is studied in the present work, taking in account two systems, batch and flux. The current and voltage were measured during the whole process in which a corona plasma was generated, with an applied power of 51.9 and 167.72 W where the transport gas was air. A batch reactor and a flow reactor were used, where 500 and 5000 mL of samples were treated, respectively. Optical emission spectra (OES) were measured where the oxidizing species ·OH were at wavelengths of 307.597 and 310.148 nm, associated with the A2∑+ - X2Π transition. The absorption spectra for the batch system showed a discoloration of 85.7% in the first 10 min, while in the flow system, the absorption was 93.9% at the same time and 4.5% at the same time by conventional heating. Characteristics of the final sample included an acidic solution with an electrical conductivity of 449.20 ± 55.44 and 313.6 ± 39.58 µS/cm, a dissolved oxygen concentration of 7.74 ± 0.2 and 6.37 ± 0.23 mg/L, an absorbance of 0.04 ± 0.01 and 0.03 ± 0.01 au, with turbidity measuring 1.22 ± 1.59 and 10.34 ± 4.96 NTU, and an energy cost of 1.1 × 10-1 and 6.3 × 10-1 g/kWh in the batch and continuous flow systems, respectively. The interaction of the corona plasma with water promoted the production of reactive species, resulting in the discoloration of the Basic Violet I dye.

2.
Arch. argent. dermatol ; 65(4): 128-132, jul.-ago. 2015. ilus, tab
Article in Spanish | LILACS | ID: biblio-837070

ABSTRACT

Las pustulosis neonatales son un grupo de enfermedades frecuentes, que deben ser reconocidas en forma precoz ya que pueden conllevar a una gran morbimortalidad en un grupo etario muy vulnerable. Realizamos una revisión de los conceptos de algunas de las entidades dentro de este grupo a partir de cinco casos clínicos estudiados en nuestro servicio (AU)


Neonatal pustulosis is a group of common diseases, which should be recognized at an early stage and that can lead to a high morbidity and mortality in a very vulnerable age group. We review the concepts of some of the entities within this group due to five clinical cases studied in our service (AU)


Subject(s)
Humans , Male , Female , Infant, Newborn , Skin Diseases, Vesiculobullous/diagnosis , Biopsy , Candidiasis/congenital , Cytodiagnosis , Erythema , Incontinentia Pigmenti , Melanosis
3.
Invest Clin ; 54(2): 171-9, 2013 Jun.
Article in Spanish | MEDLINE | ID: mdl-23947006

ABSTRACT

We analyzed in 31 subjects, regular guests of the University food service of the Central University of Venezuela (UCVFS), in Caracas, the effects of replacing sunflower oil, commonly used in the preparation of meals, by a mix of sunflower oil and palm olein 70/30 (v/v) respectively. Plasma concentrations of total cholesterol, low and very low density lipoproteins were not changed after 40 days of the substitution. On the contrary, concentrations of high density lipoprotein and total triglycerides increased. The resistance to the oxidation of low-density lipoproteins increased considerably (p < 0.01). Today this resistance is considered as a protective factor of great importance in the prevention of the initiation of the atherogenic process. Taking into account the favorable modifications of HDL cholesterol and the clear increased resistance to the oxidation of LDL, we think that palm olein, mixed with other oils with a high ratio linoleic/palmitic (sunflower, corn, soya an the likes), can be used as a healthy alternative in human nutrition.


Subject(s)
Cholesterol/blood , Dietary Fats, Unsaturated/pharmacology , Lipoproteins/blood , Plant Oils/pharmacology , Adult , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Cholesterol, VLDL/blood , Dietary Fats, Unsaturated/administration & dosage , Female , Food Analysis , Humans , Lauric Acids/analysis , Linoleic Acid/analysis , Male , Myristic Acid/analysis , Oxidation-Reduction , Palm Oil , Palmitic Acid/analysis , Plant Oils/administration & dosage , Plant Oils/chemistry , Sunflower Oil , Triglycerides/blood , Vitamin E/analysis , Young Adult
4.
Invest. clín ; 54(2): 171-179, jun. 2013. ilus, tab
Article in Spanish | LILACS | ID: lil-740346

ABSTRACT

En 31 comensales regulares del Comedor Universitario de la Universidad Central de Venezuela (CUUCV), en Caracas. Se observó el efecto de la sustitución del aceite de girasol que se utiliza corrientemente en la preparación de las comidas en ese comedor, por un aceite obtenido de la mezcla de aceite de girasol y oleína de palma, en la proporción 70/30 (v/v) respectivamente. Después de 40 días continuos de la sustitución no hubo cambios significativos en las concentraciones de colesterol total (CT), ni del colesterol de las lipoproteínas de baja densidad (LDL) y muy baja densidad (VLDL). La concentración del colesterol de las lipoproteínas de alta densidad (HDL) aumentó significativamente (p<0,05). Los triglicéridos (TG) del plasma aumentaron en un 30%. La resistencia a la oxidación de las LDL aumentó considerablemente (p< 0,01). Hoy se considera a esta resistencia como un factor protector de gran importancia en la prevención del inicio del proceso aterogénico. Tomando en cuenta las modificaciones favorables como el aumento de colesterol de HDL sin modificación de la LDL y el claro aumento de la resistencia a la oxidación de la LDL, se considera que la oleína de palma es un aceite vegetal que puede ser utilizado sin mayores riesgos en mezcla con otros aceites que tengan una relación linoleico/palmítico más elevada como los aceites de girasol, maíz, soja y otros.


We analyzed in 31 subjects, regular guests of the University food service of the Central University of Venezuela (UCVFS), in Caracas, the effects of replacing sunflower oil, commonly used in the preparation of meals, by a mix of sunflower oil and palm olein 70/30 (v/v) respectively. Plasma concentrations of total cholesterol, low and very low density lipoproteins were not changed after 40 days of the substitution. On the contrary, concentrations of high density lipoprotein and total triglycerides increased. The resistance to the oxidation of low-density lipoproteins increased considerably (p<0, 01). Today this resistance is considered as a protective factor of great importance in the prevention of the initiation of the atherogenic process. Taking into account the favorable modifications of HDL cholesterol and the clear increased resistance to the oxidation of LDL, we think that palm olein, mixed with other oils with a high ratio linoleic/palmític (sunflower, corn, soya an the likes), can be used as a healthy alternative in human nutrition.


Subject(s)
Adult , Female , Humans , Male , Young Adult , Cholesterol/blood , Dietary Fats, Unsaturated/pharmacology , Lipoproteins/blood , Plant Oils/pharmacology , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Cholesterol, VLDL/blood , Dietary Fats, Unsaturated/administration & dosage , Food Analysis , Lauric Acids/analysis , Linoleic Acid/analysis , Myristic Acid/analysis , Oxidation-Reduction , Palmitic Acid/analysis , Plant Oils/administration & dosage , Plant Oils/chemistry , Triglycerides/blood , Vitamin E/analysis
5.
Med. UIS ; 22(1): 12-18, ene.-abr. 2009.
Article in Spanish | LILACS | ID: lil-612984

ABSTRACT

Objetivo: identificar los argumentos de rechazo manifestados por las puérperas derecho-habientes usuarias del Instituto Mexicano del Seguro Social (IMSS), Cárdenas, Tabasco, que rechazan métodos de planificación familiar (MPF) postparto de alta continuidad (dispositivo intrauterino y oclusión tubárica bilateral). Material y métodos: estudio de diseño observacional, prospectivo, transversal y descriptivo. Puérperas, derechohabientes usuarias del IMSS, Cárdenas, Tabasco. Agosto/2006–Marzo/2007. Muestra por conveniencia: pacientes cuyo parto fue atendido en el Hospital General de Zona No. 2 de Cárdenas, Tabasco, captadas durante el pase diario de visita. Variables: edad, estado civil, número de embarazos, vía del parto, argumento de rechazo del MPF. Los datos se obtuvieron por método de encuesta, previo consentimiento informado. Se estimaron estadísticas descriptivas, y se analizó parcialmente el discurso. Resultados: 183 puerperas de 15 a 44 años de edad. Estado civil predominante 140 casadas (76,5%). Media de embarazos 2, moda 2, mínimo 1, máximo 9. Vía de atención del parto: 85 vaginales (46,4%), 98 abdominales (53,6%). Aceptantes de MPF 105 (57,4%), rechazantes 78 (42,6%). 18 manifestaron 1 argumento (23%), 60 declararon más de 1 argumento (77%). Argumento de rechazo manifestado como primera consideración: “mi pareja y/o familia no lo consiente” 34,2%. Explicación brindada con mayor frecuencia como segundo argumento de rechazo: “temor a complicaciones médicas secundarias a éste” 35,6%. Conclusiones: La cobertura de anticoncepción postparto en la unidad es baja. Los argumentos manifestados por las pacientes al rechazar los MPF, muestran que la mujer posee falta de sentimiento de propiedad sobre su cuerpo; y que existe desinformación sobre el uso, indicaciones, beneficios y riesgos de los métodos de planificación familiar...


Objective: identify the rejection arguments manifested for the puerperae claimant users of the Mexican Institute of Social Security (MISS), Cardenas, Tabasco, that reject family planning methods post-childbirth of high continuity (intrauterine device and bilateral tubal occlusion). Material and methods: study of design observational, prospective, traverse and descriptive. Puerperae, claimant users of the MISS, Cardenas, Tabasco. August/2006-March/2007. Sample for convenience: patients whose childbirth was attended in the General Hospital of Zone No. 2 of Cardenas, Tabasco, captured during the daily pass of visit. Variables: age, civil status, pregnancies number, childbirth way, rejection argument of the family planning methods. Data was obtained for survey method, previous informed consent. Be estimated descriptive statistics, and be analyzed partially the discourse. Results: 183 puerperae of 15 to 44 years-old. Predominant civil status 140 married (76,5%). Pregnancies mean 2, mode 2, minimum 1, maximum 9. Childbirth way: 85 vaginal (46,4%), 98 abdominal (53,6%). Family planning methods acceptors 105 (57,4%) rejection 78 (42,6%). 18 manifested 1 argument (23%), 60 declared more of 1 argument (77%). Rejection argument manifested as fi rst consideration: “my partner and/or family doesn’t consent” 34,2%. Explication offered with major frequency as second rejection argument: “fear to medial complications secondary to it” 35,6%. Conclusions: The covering of family planning post-childbirth in the medical unit is low. The arguments manifested for the patients to reject the FPM, show that the women possess lack of property sentiment over your body; and that exist disinformation over use, indications, benefi ts and risks of the family planning methods...


Subject(s)
Contraceptive Devices, Female , Family Development Planning , Reproduction , Family Practice , Mexico
6.
Rev. enferm. Inst. Mex. Seguro Soc ; 11(3): 133-142, Sept.-Dic. 2003. tab
Article in Spanish | LILACS, BDENF - Nursing | ID: biblio-969192

ABSTRACT

Metodología: Se evalúo la asertividad y no asertividad en las enfermeras jefes de piso (gerentes) del HECMN La Raza, mediante la aplicación del Inventario de Asertividad de Gambrill y Richey (1975), teniendo como universo de trabajo 86 gerentes, de los diferentes turnos institucionales. Resultados: Del universo de trabajo se evaluaron 57 gerentes obteniendo diferentes tipos de conductas: En donde el mayor número de enfermeras tienen un grado de incomodidad promedio (PR) 29 (50.88%) y asertivas 23 (40.35%). Discusión y conclusiones: La asertividad es la forma de afrontar las situaciones que se nos presentan sin embargo en la práctica vemos que la causa global de conflictos laborales son de tipo conductual que repercuten gravemente en la calidad de atención al cliente o usuario, haciendo necesaria la enseñanza de actitudes asertivas.


Introduction: Assertiveness means as the behavior that affirms, endorses or ratifies the own opinions in interpersonal situations and it makes and maintains self back ups as a consequence, without using aversive behavior for others. Objective: To identify the assertive-not assertive behavior of nursing managers' staff during the management of processes. Methodology: It was evaluated the assertiveness-not assertiveness of 86 nursing managers of different shifts from HECMN La Raza throughout the Gambrill &Richey Assertiveness Inventory Survey. Results: 57 managers were evaluated obtaining different kinds of behaviors. The biggest percentage was 50.88 % (29) in Deficit of Behaviors, in contrast of 40.35% (23) in Assertive Behavior. Discussion and Conclusions: Assertiveness is the way to face diverse situations what are going on daily. However, during the professional practice it can see that the global cause of labor conflicts is from behavioral issue which rebound as a major concern on the delivery care quality what makes a necessity of teaching assertive attitudes.


Subject(s)
Humans , Behavior , Nursing, Supervisory , Employee Discipline , Hospitals, Special , Interpersonal Relations , Interprofessional Relations , Mexico
7.
Bol. méd. Hosp. Infant. Méx ; 42(3): 196-200, mar. 1985. tab
Article in Spanish | LILACS | ID: lil-28176

ABSTRACT

Se presentaron 100 neonatos con crisis convulsivas; 75 de ellos eran del sexo masculino; cinco eran de pretérmino, 88 de término y siete de postérmino. La edad postnatal de presentación de las crisis fue de 11.22 días. Las crisis tónicas generalizadas fueron las más frecuentes: 59 pacientes; de estos, 55 eran de término y cuatro de postérmino. Todos los pacientes de pretérmino presentaron crisis de tipo sutil. En la etiología de las crisis, la más frecuente fue la hipoxia que se presentó en 64 pacientes de los cuales en 25 fue causa única y en 39 se asoció a otra etiología. En 34 pacientes fue alteración metabólica y en 16 infecciosa. Estos tres tipos de procesos patológicos cubren el 75% de la etiología de todos los pacientes. El electroencefalograma fue de un procedimiento de gran utilidad para identificar daño neurológico por crisis convulsivas en el 60% de los casos, existiendo correlación con el grado de anormalidad


Subject(s)
Infant, Newborn , Humans , Male , Female , Emergencies , Seizures
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