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Atracción de deyecciones de triatominos sobre Triatoma maculata y Panstrongylus rufotuberculatus, vectores del Chagas
Luis Eduardo Traviezo Valles,Ricardo Rodríguez,Andreana Brett,María E. Albarrán
Salud, Arte y Cuidado , 2009,
Abstract: We study the ability of being attracted towards the droppings of different species oftriatomines chip on two species of epidemiological importance, noting that 28% ofTriatoma maculata and 22% of Panstrongylus rufotuberculatus shown attraction totheir own feces or other species studied
Embriogénesis somática a partir de flores masculinas de pineo gigante y cambur manzano
Albarrán Rincón,José G; González-Pacheco,Adrián E; González Salcedo,Ohytza; Salazar Yamarte,Efraín G; Trujillo Díaz,Iselen E; Fuchs Delgado,Morela M; Torrealba Vargas,María Ch;
Agronomía Tropical , 2009,
Abstract: banana is a major crop in venezuela as well as in most tropical countries, due to its high content of vitamins and minerals. due to the high demand for healthy plants, and for genetically improved materials with resistance to diseases, biotechnology is an useful alternative to produce these plants. the objective of the present work is to induce somatic embryogenesis and cell suspensions in ?giant pineo? (musa aaa) and ?manzano? (musa aab), two economically important cultivars in aragua, venezuela, though the in vitro culture of immature male flowers. flowers were selected from the 6th and 11th reduced flower bud. in order to induce somatic embryogenesis, ms culture medium, supplemented with biotin 1 mg l-1 , malt extract 0,1 g l-1 , glutamine 10 g l-1, iaa 1 mg l-1, naa 1 mg l-1 , 2,4-d (0, 2, 4 y 8 mg l-1) and agarose 7 g l-1 was used. cell suspensions were obtained in ms1 medium supplemented with 2,4-d 3 mg l-1, hydrolyzed casein 0,4 g l-1 and sucrose 20g l-1 and in ms2 medium supplemented with hydrolyzed casein 0,4 g l-1, coconut water 50 ml l-1, 2,4-d 3 mg l-1, arginine 50 mg l-1 and sucrose 30 g l-1. histological studies at the initial culture, callogenesis and somatic embryogenesis stage were done. in giant pineo cultivar friable calluses were obtained. globular somatic embryos (histologicaly evidenced) developed 6 months after culture. cell suspensions were formed 2 months later. in manzano cultivar callogenesis and somatic embrygenesis were obtained in ms-4 medium. no cell suspensions were obtained for this cultivar
LA MIGRACIóN: UNA INSTITUCIóN
María de Lourdes Jacobo Albarrán,Roberto Manero Brito
Ense?anza e Investigación en Psicología , 2010,
Abstract: El presente artículo propone retomar la perspectiva del concepto de institución, de Cornelius Castoriadis, para comprender y elucidar el circuito de la migración hacia Estados Unidos. Esta concepción se revela sumamente fructífera para evitar la reducción de la comprensión del fenómeno migratorio a una esfera estrictamente económica. Al contrario, una multiplicidad de testimonios, de los cuales se recogen algunos, muestra que el fenómeno migratorio es rico en su producción imaginaria, llena de símbolos, y constituye en sí mismo una red simbólica. Así, es patente cómo en este fenómeno se establece una confrontación ética, una prueba que remite a la catadura ética y humana del migrante, un sacrificio cuyo costo es espiritual. Cabe a adir que es en este sentido que va creando una cultura y generando en las comunidades expulsoras ciertas tradiciones y pedagogías.
Revisión sobre el dolor neuropático en el síndrome del pie diabético
Martín Mu?oz,M. C.; Albarrán Juan,M. E.; Lumbreras Marín,E. M.;
Anales de Medicina Interna , 2004, DOI: 10.4321/S0212-71992004000900008
Abstract: diabetes mellitus (dm) is the most common cause of neuropathy in the western world. recent studies estimate prevalence around 28,5% but results vary depending on measure used to define diabetic neuropathy. early detection and carefull attention to risk factors determining diabetic foot may avoid or delay complications. pain generation is due to biologic causes as well as physical and emotional ones. neuropathy may result in amputation through diferent ways including loss of one or more funtions in peripheral nerves. glycaemic control, symptom control and feet care are standard measures that affect all health professionals implied in diabetic patients attention. deeper knowledge of pathogenic mecanisms should result in new treatments which seem to be more effective if administered early, when abnormalities are more likely to be reversible.
TINCIóN DENTAL TRAS TRATAMIENTO CON IMIPENEM
Martínez-Cuevas E,Albarrán A,Barbero ML,Cuevas-Ruiz B
Electronic Journal of Biomedicine , 2011,
Abstract: Many drugs have the side effect of dental staining may be permanent or transitory. The antibiotic Imipenem has a broad spectrum of activity against gram positive and negative which is indicated in severe infections in both adults and children.We report the case of a child who developed a transient dental staining after treatment with Imipenem
Riesgo de infecciones y control metabólico en pacientes con diabetes mellitus tipo 2
Martín Mu?oz,M. C.; Gómez de la Cámara,A.; Román Martínez,A.; Ferrando Vivas,P.; Albarrán Juan,M. E.; Hawkins,F.;
Anales de Medicina Interna , 2004, DOI: 10.4321/S0212-71992004000300004
Abstract: background and objective: although association between diabetes mellitus (dm) type 2 and prevalence of infections is a frequently considered issue in current literature there is few evidence of it. the objective of this study has been to analyse the infection risk in dm type 2 patients according to their glycemic control level (hb aic%). patients and method: in this cohort-study of740 patients, we evaluated the incidence rates of infectious episodes indm2-type diabetic patients during a period of 5 years, from may, 1997 to may, 2002. results: the average period of follow-up was 4.26 years. we found no significant correlation (p=0.33) between higher levels of hbaic% and presentation of infections. data clearly show a direct correlation betweenrisk of infection and number of associated chronic diseases (p=0.035), age (p=0.007) and diabetes duration (0.012). we also found an unexplained association between more aggressive treatment and higher glycemic levels (hb aic%) (p=0.0001) and also higher infection risk (0.038). conclusions: although there is no association between risk of infection and glycemic control (hb aic%) among analysed patients, this study shows a clear correlation between risk of infection and number of complications or number of associated chronic diseases.
Effect of Flooding Frequency and Nutrient Addition on Plant Growth and Total Petroleum Hydrocarbons Removal in Mangrove Microcosms  [PDF]
María E. Hernández, José L. Marín-Muniz, Eugenia J. Olguín
Journal of Water Resource and Protection (JWARP) , 2014, DOI: 10.4236/jwarp.2014.618154
Abstract: The addition of nutrients to accelerate biodegradation of oil is an adequate strategy to clean up polluted mangrove soils which pollutes mangrove soils. However, the hydrology of these ecosystems might interfere with such strategy. The effect of flooding frequency and nutrient addition on hydrocarbon removal in mangrove sediments was investigated in this study. Microcosms consisted of pots with 5 kg of fresh mangrove sediments and one seedling of Avicennia germinans. Treatments included: planted microcosms with fertilizer and crude oil (PNC), planted microcosms with oil (PC), non-planted microcosms with oil and fertilizer (NC), planted microcosms with fertilizer (PN) and planted microcosms without oil or fertilizer (P). Mexican Maya crude oil and inorganic nutrients were added in a single dose of approximately 5.0 g DW·kg-1, 0.33 g of N DW·kg-1 and 0.06 g P DW·kg-1. Microcosms were either permanently flooded (PF) or intermittently flooded (IF: 14 hours drained and 10 hours flooded), and kept in a glasshouse in Xalapa, Veracruz, Mexico. In both flooding conditions, oil decreased the relative growth rate of A. germinans by 56% in (PC) treatments and 40% in (PNC) treatments. Redox potential in the oiled treatments (-44.73 to +75.34 mV) was lower than non-oiled treatments (-1.31 to +163.43 mV). Total Petroleum Hydrocarbons (TPHs) removal in PC treatments was low in both permanent (2.99% ± 3.51%) and intermittently flooding conditions (11.75% ± 1.46%). The highest TPHs removal was observed in (PNC) and (NC) under IF conditions (47% ± 3.86% and 50.32% ± 7.15% after 4 months, respectively). It was concluded that nutrient addition increased TPHs removal but only under IF conditions and helped mangrove plants to deal with TPHs toxicity.
Análisis de las sentencias judiciales contra neurocirujanos resueltas en segunda instancia en Espa?a entre 1995 y 2007
Santiago-Sáez,A.; Perea-Pérez,B.; Labajo-González,E.; Albarrán-Juan,M.E.; Barcia,J. A.;
Neurocirugía , 2010, DOI: 10.4321/S1130-14732010000100008
Abstract: objectives: with the aim of identifying the factors related to sentences against neurosurgeons, we have analyzed all the sentences issued in the second court of justice in spain against neurosurgeons in the period from 1995 to 2007. material and methods: of a total of 1899 sentences of the second or last appeal, during the period from 1995 to 2007 issued in spain, 61 were chosen which fulfill the criteria to be included in our study. 25 variables were included on the record of compiled data. a complete descriptive and comparative study was elaborated, as well as an analysis of the type of suits, circumstances, and professionals involved. results: in a third of the cases, complete malpraxis was identified. in regards to the sentences, they were absolved in approximately half the cases, resolved with one fifth of the cases being penal, and four fifths with compensation. indemnity quantities range from 60,000 to 600,000€. deficiency of information or consent was noted in 17% of lawsuits. 62.5% of operations in our sample were on the anatomic region of the vertebral column followed in frequency by the cranial region with 28.6%. consequences of surgical procedure included major permanent sequelae in 40% of the cases and death in 22%. conclusions: it is wise to invest time to deal with patients, including the verbal informed consent, which must be confirmed by the written informed consent form. it is also important to leave a written proof of medical praxis, both related to surgical records and to diagnosis and follow-up of the patient. procedures with a lower life-threatening risk should not be underestimated, since they comprise the greatest demanded group. the greatest amount of demands is related to economic reimbursement, especially in private practice.
Análisis de las sentencias judiciales contra neurocirujanos resueltas en segunda instancia en Espa a entre 1995 y 2007 Analysis of Judicial Sentences Against Neurosurgeons Resolved in Second Court of Justice in Spain in the Period from 1995 to 2007
A. Santiago-Sáez,B. Perea-Pérez,E. Labajo-González,M.E. Albarrán-Juan
Neurocirugía , 2010,
Abstract: Objetivos: Con el fin de identificar los factores relacionados con las condenas judiciales contra neurocirujanos, el presente estudio analiza todas las sentencias emitidas en segunda instancia en Espa a contra neurocirujanos en el periodo de 1995 al 2007. Material y método: De un total de 1899 sentencias de segunda instancia o última durante el periodo de 1995 a 2007 emitidas en Espa a se han escogido 61 que cumplen los criterios de inclusión para nuestro estudio. Se han cumplimentado 25 variables en la ficha de recogida de datos. Se ha realizado con ellas un completo estudio descriptivo y comparativo, además de un análisis de la tipología de las demandas, las circunstancias y los profesionales implicados. Resultados: En un tercio de los casos se apreció completa mal praxis. En relación a las condenas, se absolvió aproximadamente en la mitad de los casos, siendo las resueltas con condena 1/5 de ellas de carácter penal y 4/5 indemnizatorias. Las cuantías indemnizatorias predominan en el rango de 60.000 a 600.000 euros. En un 17% de las demandas se apreció deficiencia en la información o el consentimiento. El 62,5% de las intervenciones de nuestra muestra se produjeron en la región anatómica de la columna vertebral siguiéndole en frecuencia la región craneal con un 28,6%. De las consecuencias del procedimiento quirúrgico las secuelas permanentes mayores constituyen el 40% de los casos y el fallecimiento el 22%. Conclusiones: Es rentable dedicar tiempo a la relación con el paciente, incluyendo el consentimiento informado verbal, que debe ser refrendado por la firma del documento que lo recoge. También es importante dejar constancia escrita de la praxis, tanto en lo referente a los procesos quirúrgicos como al diagnóstico y seguimiento del paciente. No se debe bajar la guardia ante procedimientos de menor riesgo vital, como la patología degenerativa, ya que son los más demandados. La demanda más importante tiene que ver con la satisfacción económica, especialmente en la práctica privada. Objectives: With the aim of identifying the factors related to sentences against neurosurgeons, we have analyzed all the sentences issued in the second court of justice in Spain against neurosurgeons in the period from 1995 to 2007. Material and methods: Of a total of 1899 sentences of the second or last appeal, during the period from 1995 to 2007 issued in Spain, 61 were chosen which fulfill the criteria to be included in our study. 25 variables were included on the record of compiled data. A complete descriptive and comparative study was elaborated, as well as an analysis
Direct Determination of Polychlorinated-Biphenyls in Automotive Shredder Residues by Gas Chromatography-Mass Spectrometry  [PDF]
María de los D. E. Otero, Mohamed N. K. Sayadi, Luis María Polo Díez
Journal of Analytical Sciences, Methods and Instrumentation (JASMI) , 2013, DOI: 10.4236/jasmi.2013.32011
Abstract:

An easy and rapid method is proposed for the determination of PCBs in automotive shredder residues, using gas chromatography combined with low resolution mass spectrometry (GC-MS). It is based on direct n-hexane solid-liquid extraction, subtracting background of the lineal aliphatic hydrocarbon interferences and integration of chromatographic peaks containing selected ion PCBs masses (256, 292 and 326 m/z), which are common in all PCBs formulations. Recoveries were in the 80% - 120% range; PCBs were detected and quantified in shredder samples from an automotive shredder industry, thus indicating the validity of the method.

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