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Modelling of Submerged and Aerated Filters Modelación de filtros sumergidos y aireados
Miguel A. Díaz Marrero,Farah de Armas Machado
Revista Cubana de Ingeniería , 2010, DOI: 10.1234/rci.v1i2.21
Abstract: Biofilm processes have been profusely used during the last ten years. This, due to the more and more rigorous standards for wastewater treatment and the necessity of a better use of the space. Biofilm processes include the "submerged fixed bed reactors". Such reactors are characterized by their high buffer capacity as a consequence of the organic load fluctuations originated by the high capacity of adsorption of the biofilm. This paper shows the modeling of an aerated fixed bed submerged reactor at pilot plant scale, for the treatment of a synthetic substrate. An experiment design was used. Operational variables used were organic matter concentration as COD, hydraulic retention time, packing area and aeration level. Se realiza un estudio del comportamiento de un reactor de cama fija sumergido y aireado a escala piloto en el tratamiento de un residual sintético. Los objetivos que se persiguen son modelar el comportamiento de un filtro sumergido y aireado ante variaciones de parámetros operacionales tales como: concentración de la alimentación, tiempo de retención hidráulico, área de empaquetadura y nivel de aireación. Para ello se realizó un dise o de experimento que fue procesado a través del Stat Graphics, determinando la influencia que sobre la remoción de la demanda química de oxígeno tiene estos parámetros o la combinación entre ellos.
Trasplante renal con injertos procedentes de donantes en parada cardíaca Maastricht tipo III
Frutos-Sanz,Miguel á.; Guerrero-Gómez,Francisco; Daga-Ruiz,Domingo; Cabello-Díaz,Mercedes; Lebrón-Gallardo,Miguel; Quesada-García,Guillermo; Ruiz-Valverde,Andrés; Baena-González,Víctor; Hernández-Marrero,Domingo;
Nefrología (Madrid) , 2012, DOI: 10.3265/Nefrologia.pre2012.Jul.11522
Abstract: kidney transplantation (kt) with kidneys from non-beating-heart donors (nbhd) is a growing trend in spain. the majority of these kidneys come from type ii maastricht patients, although in recent years, organ donations from patients deceased due to cardiac arrest following limitation of life-sustaining therapy has already been in practice in certain european and north american countries, and it involves type iii maastricht patients. we present a series of 6 kt using kidneys from nhbd as a consequence of limitation of life-sustaining therapy in three different hospitals in the sector of malaga. after agreeing upon a protocol for evaluating the potential of a patient for organ donation, which was always after deciding to limit life-sustaining therapy, the patients' families were given the option of organ donation. kidneys were preserved using a porges double balloon catheter, which was placed prior to cardiac arrest. in two cases, the limitation of life-sustaining therapy took place in the intensive care unit, and in the third case, in the operating room. the interval between limitation of life-sustaining therapy and cardiac arrest ranged between 15 minutes and 40 minutes, with an interval of circulatory arrest prior to perfusion of 5-11 minutes. perfusion-cooling of the kidneys was initially carried out using saline solution, followed by organ preservation solution (celsior or belzer) and extraction of the kidney using a rapid surgical technique. true or functional hot ischaemia times were 60 minutes, 59 minutes, and 50 minutes, respectively, for each of the three donors. kidneys were evaluated for viability using time intervals for the procedure (including hypotension prior to cardiac arrest), macroscopic appearance, and histopathology of a sample taken from each kidney. the recipients of these 6 kidneys had given their consent to receive organs from expanded-criteria donors. cold ischaemia lasted between 9 hours and 20 hours (mean: 14.6 hours). one recipient develop
Tratamiento de la hipoplasia severa del pulgar con modificación de la técnica de Buck-Gramcko
Pe?a Marrero,Liván; López Díaz,Haysell;
Revista Cubana de Ortopedia y Traumatolog?-a , 2007,
Abstract: pollicization of the index thumb through buck-gramcko technique is the classical treatment for aplasia and severe hipoplasia of the thumb. this paper evaluated the efficacy of a modification introduced to buck-gramcko procedure. a preliminary study was conducted in 8 patients diagnosed with hipoplasia or aplasia of the thumb and seen at "frank pais" orthopedic hospital from january 1st, 2004 to february 28th 2006. nine surgeries were performed. the average position of palmar abduction was 42,22o. the average rest position in pronation was 118,33o. the average movement arc in palmar abduction was 58,33°. the average movement arc in pronation reached in patients was 123,33°. eight (88,9%) out of the 9 operated hands succeeded in opposing the new thumb to the rest of the fingers. no patient required a secondary oponoplasty. the outcome was excellent in 4 hands, good in 4 hands and regular in one hand. the introduced modification provided the majority of patients with a good position of the pollicized finger and opposition movement with respect to the rest of the fingers, all of which reduced the possibilities of a second surgery to attain a satisfactory result.
Evolution of a Prevention Program in Mental Health in a Municipal Therapeutic Service  [PDF]
Milagros de la Rosa Hormiga, Juan Manuel Herrera Hernández, Candelaria de la Merced Díaz-González, Inmaculada Rodríguez Matos, María Sandra Marrero Morales
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.58108
Abstract:

This study shows the evolution of the demand and assistance in a municipal therapeutic service portfolio in Tenerife. It is a descriptive, qualitative and quantitative study. The sample is made up of 1175 patients assisted in this program in the period of time which ranges from 2005 to 2012. The results show the high demand of this program. Moreover, the results of the intervention coincide with those expected by international and national organisms. Most of the demand is centred on the area of problems called role transitions, followed by those problems grouped in the area of interpersonal conflicts. In the third place, the demand is centred on those problems grouped in the area of interpersonal deficits, and finally on those problems grouped in the category of grieving or mourning problems. It is extremely important to offer this program in the municipal service portfolio as a complementary resource which facilitates the prevention and approach to problems related to mental health in the community because of its high demand, effectiveness and efficacy.

The Identification of Knowledge and Educational Requirements for Secondary School Teachers in the Field of Health Education  [PDF]
David Pérez-Jorge, Milagros De la Rosa Hormiga, Pedro álvarez Pérez, Candelaria de la Merced Díaz-González, María Sandra Marrero Morales
Psychology (PSYCH) , 2015, DOI: 10.4236/psych.2015.66076
Abstract: The present society requires the individuals to have the ability to adapt to changes, as an instrument to achieve the full integration of all of its members. Problems related to health care, both individual and collective, are considered as an essential aspect in the set of social values. Thus, the value attributed to health and wellbeing is a relevant aspect in that set of social values. It can be stated that health education should be a guiding principle in the integral education of the person. In this sense, educational institutions should act as providing basic resources which allow individuals their full development, without forgetting health care and promotion through the development of educational programmes in the field of health. This research shows the design of an instrument for assessing the teachers’ degree of knowledge as regards school health and their attitude and predisposition to learn to solve situations related to health problems in the school context.
La autoría en Derecho penal. Caracterización general y especial atención al Código Penal colombiano
Miguel Díaz y García Conlledo
Derecho Penal y Criminología , 2004,
Abstract:
La problemática de la codelincuencia en el Código Penal colombiano. Complicidad y acuerdo previo; el “interviniente” del artículo 30, párrafo final
Miguel Díaz García Conlledo
Derecho Penal y Criminología , 2005,
Abstract:
Delitos contra la propiedad intelectual e industrial especial atención a la aplicación práctica en Espa a
Miguel Díaz y García Conlledo
Derecho Penal y Criminología , 2009,
Abstract:
Staphylococcus e infección nosocomial
Junco Díaz,Raquel de los A.; Marrero,María Luisa; Lara Ortiz,César;
Revista Cubana de Higiene y Epidemiolog?-a , 2000,
Abstract: we studied a total of 366 strains of staphylococcus isolated from patients with in-hospital infections from various hospitals throughout the country in 1991-1994 period. of these, 303 strains were identified as staphylococci aureus which were characterized using the following epidemiologic markers: phage typing, antibiotic typing and determination of enterotoxin production (a, b, c2, d and e. the most frequent phago types were 47,85 (13,80 %) and 53,54 (10,87 %). 64 strains resulted non-typable in a routine testing dilution (rtd) so, a one-hundred time more concentrated phago dilution, i.,e. 100 x rtd. was used. antibiotic typing revealed that the most frequente pattern of resistence was a-p (ampicilline- penicilline) with 37 strains and these two antimicrobial agents were present in 97,7 % of studied strains. the determination of production of enterotoxins a, b, c2, d and e disclosed that 30 % of strains were enterotoxigenic in which enterotoxin e-producing strains (14 %) predominated. there was an association of enterotoxigenic strains with those stains of phage group iii and phage type 94,96. no relationship was found between the patterns of resistance and the identified phage types, which is explained by the small number of strains studied in each hospital. sixty-three strains were identified as coagulase-negative staphylococci which corresponded to staphylococci epidemidis. fifty of them (79,36 %) were slime producers.
Staphylococcus e infección nosocomial
Raquel de los A. Junco Díaz,María Luisa Marrero,César Lara Ortiz
Revista Cubana de Higiene y Epidemiología , 2000,
Abstract: Fue estudiado un total de 366 cepas de Staphylococcus aisladas de pacientes con infecciones intrahospitalarias en el período 1991-1994 procedentes de diferentes hospitales del país. De ellas 303 cepas fueron identificadas como staphylococcus aureus, las cuales fueron caracterizadas mediante el empleo de los siguientes marcadores epidemiológicos: fagotipia, antibiotipia y determinación de la producción de enterotoxinas (A, B, C2, D y E). Los fagotipos que se encontraron con mayor frecuencia fueron 47,85 (13,80 %) y 53,54 (10,87 %); un total de 64 cepas resultaron no tipables a la dilución de trabajo de rutina (RTD) y utilizando una dilución de fagos 100 veces más concentrada, es decir 100 x RTD. La antibiotipia reveló que el patrón de resistencia más frecuente fue -A-P- (Ampicilina- Penicilina) con 37 cepas, estando presentes estos 2 antibióticos en el 97,7 % de las cepas estudiadas. La determinación de la producción de enterotoxinas A, B, C2, D y E mostró que el 30,0 % de las cepas resultaron enterotoxigénicas, predominando las cepas productoras de enterotoxina E (14,0 %). Se encontró asociación entre las cepas enterotoxigénicas y las pertenecientes al grupo fágico III y fagotipo 94,96. No se encontró asociación entre los patrones de resistencia y los fagotipos identificados, lo cual se explica por el peque o número de cepas estudiadas por cada hospital. Se identificaron 63 cepas como estafilococos coagulasa negativos los que correspondieron a Staphylococcus epidermidis, de los cuales 50 (79,36 %) resultaron ser productores de slime. We studied a total of 366 strains of Staphylococcus isolated from patients with in-hospital infections from various hospitals throughout the country in 1991-1994 period. Of these, 303 strains were identified as Staphylococci aureus which were characterized using the following epidemiologic markers: phage typing, antibiotic typing and determination of enterotoxin production (A, B, C2, D and E. The most frequent phago types were 47,85 (13,80 %) and 53,54 (10,87 %). 64 strains resulted non-typable in a routine testing dilution (RTD) so, a one-hundred time more concentrated phago dilution, i.,e. 100 x RTD. Was used. Antibiotic typing revealed that the most frequente pattern of resistence was A-P (ampicilline- penicilline) with 37 strains and these two antimicrobial agents were present in 97,7 % of studied strains. The determination of production of enterotoxins A, B, C2, D and E disclosed that 30 % of strains were enterotoxigenic in which enterotoxin E-producing strains (14 %) predominated. There was an association of enterotox
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