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Search Results: 1 - 10 of 266699 matches for " José Valero Martín "
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Influencia de la fertilización con lodos de depuradura compostados en las propiedades químicas del suelo de dos olivares
Eulalia Ma. Beltrán,Rosario Miralles de Imperial,Miguel ángel Porcel,José Valero Martín
Revista internacional de contaminación ambiental , 2005,
Abstract: Debido al interés creciente en el cultivo del olivo y a la necesidad de reutilizar los lodos residuales procedentes de estaciones depuradoras de la zona centro de Espa a se ha determinado el efecto que tiene el lodo de depuradora compostado (LDC) en las propiedades químicas (materia orgánica, nitrógeno, fósforo, pH y conductividad eléctrica, del suelo de dos olivares de la variedad cornicabra. El ensayo se llevó a cabo en campo durante 4 a os y se evaluaron cuatro tratamientos: a) testigo (T) b) 16,000 kg/ha de lodo de depuradora compostado (LDC) c) 1 kg/árbolde N en forma de urea (U) y d) 8,000 kg/ha de lodo de depuradora compostado más 0.5 kg/árbol de N de urea(LDC +U). Las variables estudiadas fueron concentración en el suelo de materia orgánica, nitrógeno, fósforo disponible, pH y conductividad eléctrica. Todos estos parámetros aumentaron de valor al final de los 4 a os por efecto de las aplicaciones del lodo de depuradora compostado, por lo que puede afirmarse que las propiedades químicas del suelo del olivar experimentan mejoría.
Mineralización del nitrógeno contenido en un lodo de depuradora secado térmicamente
José Valero Martín,Rosario Miralles de Imperial,Eulalia Ma. Beltrán,Miguel Angel Porcel
Revista internacional de contaminación ambiental , 2006,
Abstract: Se presentan resultados de un ensayo de mineralización con lodo de depuradoras de aguas residuales secado térmicamente con el fin de comprobar su comportamiento al aplicarlo al suelo. Se realizó un ensayo de incubación de 52 semanas con tres tipos de suelos (S1, S2, S3) que fueron mezclados con diferentes dosis de lodo secado térmicamente: 0, 15, 30 y 60 t ha-1. Los resultados mostraron que la mayor cantidad de nitrógeno mineralizado aportada por el lodo secado térmicamente se produjo en el suelo S1 (ácido) con 364.60 mg N por kg de suelo seguido del suelo S2 (básico) con 292.19 mg N por kg de suelo y por último la arena, S3 con 221.85 mg N por kg de suelo. Se ajustaron los modelos de regresión para describir la mineralización del lodo secado térmicamente, y para comprobar las variaciones existentes entre los diferentes suelos y las diversas dosis de aplicación. Los modelos se ajustaron tanto a los datos de la suma de N-amonio (N-NH4 +) y N-nitrato (N-NO3 -) como para cada una de estas variables por separado. En el caso del N-NO3 - se encontraron diferencias en el inicio de la nitrificación entre los diferentes suelos. Es importante considerar lo anterior para sincronizar la aplicación con la demanda del cultivo y evitar con ello la contaminación ambiental.
La aplicación de gallinazas en sorgo forrajero como cultivo energético
Rosario MIRALLES DE IMPERIAL,José Valero MARTíN,Carmen RODRíGUEZ,Rosa CALVO
Revista internacional de contaminación ambiental , 2011,
Abstract: El sorgo forrajero como cultivo energético podría ser una alternativa efectiva de cultivo en zonas donde las dotaciones de agua de riego son limitadas. La producción de biomasa de este cultivo puede ser mejorada por la capacidad de rebrote después de su corte y presenta como valor a adido el contenido de azúcares en sus tallos para producción de bioetanol. Se condujo un ensayo en invernadero con sorgo forrajero (Sorghum bicolor (L.) Moench) cv. Digestivo. Se cultivaron dos plantas (planta V y planta A) por maceta. El objetivo fue evaluar el efecto de dos tratamientos: gallinazas de pollo de engorda con cama de paja (GP) y de pollo de engorda con cama de aserrín de madera (GAS), en dosis: 0, 1 y 2, y un tratamiento con abono mineral (M) N-P-K, 15-15-15, equivalente en N a la dosis 1. Las variables estudiadas fueron: biomasa total en planta V (planta cortada en verde + rebrote) (biomasa V), biomasa total en planta A (planta madura + ahijamiento) (biomasa A) y para evaluar el contenido en azúcares de los tallos de sorgo se estudió la variable porcentaje (%) grado Brix (°Bx): en planta verde V (°Bx V) y en planta madura A (°Bx A). Para GP y GAS se realizó un análisis de varianza de doble vía (tratamiento y dosis). Para biomasa V el tratamiento y la dosis fueron significativos y para °Bx V solamente la dosis. La interacción tratamiento × dosis no fue significativa en ninguna de las variables estudiadas: biomasa V, biomasa A, °Bx V y °Bx A. En este ensayo la dosis 1 de GP y GAS para biomasa A fue con la que se obtuvo mayor materia seca (m.s.), para biomasa V fue con la dosis 0 (testigo). Para °Bx los valores más altos se obtuvieron con el testigo en ambas plantas, los °Bx V fueron doble que los °Bx A. El sorgo tuvo una respuesta positiva a la fertilización con gallinazas en dosis 1 para rendimiento en m.s. de biomasa en planta madura (A) pero en m.s. de biomasa en planta verde (V) dio mejores resultados el testigo (T) y también se obtuvo con T los valores mas altos para el contenido en azúcares en el jugo de los tallos para °Bx V y °Bx A.
Estudio epidemiológico de la Obesidad y el Sobrepeso en una población pediátrica de medio rural de Castilla-La Mancha
Arias López,Isabel; Cabrerizo Martínez,José; Franco Valero,Julia; León Martín,Antonio Alberto;
Revista Clínica de Medicina de Familia , 2008, DOI: 10.4321/S1699-695X2008000200005
Abstract: objective: to determine the prevalence and trends in obesity and excess weight in the pediatric population in our work setting and whether factors such as age, sex or blood pressure are associated with obesity/excess weight. design and participants: a retrospective follow up study was carried out on a cohort of all the children born in 1992 in the basic health area of calzada de calatrava (n = 92). the sources used were clinical records, and the following measurements were recorded: weight, height and bmi for each patient in the check ups carried out at birth, 2 years, 6-7 years, 10-11 years and 14-15 years, and blood pressure in the last two check ups. results: the prevalence of obesity at 14 years old in our population was around 9.8% according to criteria of cole1 et al and 18.3 % according to the criteria of hernandez2 et al. with regards the alteration in blood pressure at the first measurements, during the 11-year and 14-year check ups, we found a statistically significant association between high blood pressure and obesity at 14 years old. conclusions: with our study we have shown there to be an alarming increase in obesity and excess weight in our population, in accordance with the literature consulted. childhood obesity can also favour other cardiovascular risk factors such as high blood pressure. we consider that obesity and excess weight are a real and established problem in the spanish population.
Management and Outcome of Pregnant Women with HIV Acquired by Vertical Transmission  [PDF]
Verónica Serrano de la Cruz Delgado, Alicia Martínez Varea, María José Nú?ez Valero, Vicente Diago Almela, Vicente Maiques Montesinos, Amparo García Tejedor, Alfredo Perales Marín
Open Journal of Obstetrics and Gynecology (OJOG) , 2015, DOI: 10.4236/ojog.2015.59068
Abstract: The majority of children with perinatally acquired human immunodeficiency virus (HIV) do not survive beyond childhood but this is changing due to the benefit of antiretroviral therapy for the perinatally infected cohort, so affected children are now approaching the age to be mothers. The aim of this article is to evaluate the outcomes of pregnant women with HIV acquired by vertical transmission in our centre and encourage the results obtained in “Thirty Years Later: Pregnancies in Female Perinatally Infected with Human Immunodeficiency Virus-1”, a review article published in this journal in 2012 [2]. We report 6 patients with eight pregnancies with HIV acquired by vertical transmission. They delivered a total of nine newborns between 2004 and 2013. In any case, mother-to-child transmission was reported. The management of pregnant women with HIV acquired by vertical transmission is complicated, since the patients are the most of the cases young and the compliance to the treatment may be poor. The prematurity was the more frequent complication and the cesarean section was the more frequent form of ending. In our case series, mother-to-child transmission was absent.
Short-Term Environmental Enrichment Rescues Adult Neurogenesis and Memory Deficits in APPSw,Ind Transgenic Mice
Jorge Valero,Judit Espa?a,Arnaldo Parra-Damas,Elsa Martín,José Rodríguez-álvarez,Carlos A. Saura
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0016832
Abstract: Epidemiological studies indicate that intellectual activity prevents or delays the onset of Alzheimer's disease (AD). Similarly, cognitive stimulation using environmental enrichment (EE), which increases adult neurogenesis and functional integration of newborn neurons into neural circuits of the hippocampus, protects against memory decline in transgenic mouse models of AD, but the mechanisms involved are poorly understood. To study the therapeutic benefits of cognitive stimulation in AD we examined the effects of EE in hippocampal neurogenesis and memory in a transgenic mouse model of AD expressing the human mutant β-amyloid (Aβ) precursor protein (APPSw,Ind). By using molecular markers of new generated neurons (bromodeoxiuridine, NeuN and doublecortin), we found reduced neurogenesis and decreased dendritic length and projections of doublecortin-expressing cells of the dentate gyrus in young APPSw,Ind transgenic mice. Moreover, we detected a lower number of mature neurons (NeuN positive) in the granular cell layer and a reduced volume of the dentate gyrus that could be due to a sustained decrease in the incorporation of new generated neurons. We found that short-term EE for 7 weeks efficiently ameliorates early hippocampal-dependent spatial learning and memory deficits in APPSw,Ind transgenic mice. The cognitive benefits of enrichment in APPSw,Ind transgenic mice were associated with increased number, dendritic length and projections to the CA3 region of the most mature adult newborn neurons. By contrast, Aβ levels and the total number of neurons in the dentate gyrus were unchanged by EE in APPSw,Ind mice. These results suggest that promoting the survival and maturation of adult generated newborn neurons in the hippocampus may contribute to cognitive benefits in AD mouse models.
La aplicación de gallinazas en sorgo forrajero como cultivo energético
MIRALLES DE IMPERIAL, Rosario;MARTíN, José Valero;RODRíGUEZ, Carmen;CALVO, Rosa;DELGADO, María del Mar;
Revista internacional de contaminación ambiental , 2011,
Abstract: forage sorghum could be an efective alternative crop for energy purposes in areas where water irrigation are limited. the ability of regrowth after cutting of this crop can enhance biomass production. the sorghum stems sugar content could be an added value for bioethanol production. trial was carried out in a greenhouse with forage sorghum (sorghum bicolor (l.) moench) cv. digestivo. two sorghum plants (plant v and plant a) were cultivated per pot. the aim in this work was to study the effect of two fertilizer treatments: straw broiler litter (stbl) and sawdust broiler litter (sbl) at rates: 0, 1 and 2 and a mineral fertilizer treatment (m) n-p-k, 15-15-15, equivalent in n at rate 1. the variables studied were: total plant biomass v (green cutting plant + regrowth) (biomass v), total biomass plant a (mature plant + tillering) (biomass a) and in order to evaluate the sugar content of sorghum stalks we studied the variable percent (%) degree brix (°bx): in green plant v (°bx v) and in mature plant a (°bx a). we made a two-way analysis of variance (treatment and rate) for stbl and sbl. treatment and rate were significant in biomass v and only rate for °bx v. treatment × rates were not significant in the variables studied: biomass v, biomass a, °bx v and °bx a. in this trial the highest dry matter (d.m.) biomass a were obtained with rate 1 for stbl and sbl but in case of d.m. biomass v were obtained with rate 0, control (c). the highest °bx values were obtained with c in both plants; the °bx v were double than the °bx a. sorghum had a positive response to fertilization with poultry manure with rate 1 to d.m. of plant biomass (a) but in d.m. green plant biomass (v) better results were obtained with c. the sugar content in juice stems (°bxv and °bxa) was in all cases highest in control with rate 0.
Colon irrigation and quality of life in patients with colostomy
Francisco Javier Barbero Juárez,Francisco José Martín Ca?ete,Vicenta Galbis Valero,Josefa García López
NURE Investigación , 2004,
Abstract: One of the most important problems that a patient with a colostomy has to face after surgery is the intestinal continence. This lead these patients to experience not only a series of physical changes but also hygienic, dietetic, social, etc. As nurses, we must learn how to detect the needs of these patients in order to offer them an appropriate attention to improve their quality of life. Our aim is to assess if the irrigation technique (IT) as a method for intestinal continence improves the quality of life in these patients. Methodology: A Pretest-postest study without control group was carried out in order to evaluate the usefulness of IT to improve the quality of life in patients with colostomy. Following a normalized protocol, the technique was taught to patients whose quality of life was evaluated before and after the application of IT. Results: Quality of life rate before intervention was 54,2% and reached 77,3% (statistically significant) once the patient has used IT for two months. Conclusions: IT is associated with a remarkable improvement in the quality of life of patientes with colostomy. This improvement is reflected in the eight dimensions analysed: psychological welfare, physical welfare, body image, pain, sexual activity, nutrition, social preoccupations and device handling.
Análisis de la mortalidad en ciudades: resultados en Valencia y Alicante
Nolasco,Andreu; Melchor,Inmaculada; Moncho,Joaquín; García,Carmen; Verdú,José; Caballero,Pablo; Valero,Socorro; Martínez,Purificación; Pérez,María Jesús;
Gaceta Sanitaria , 2004, DOI: 10.1590/S0213-91112004000100003
Abstract: objectives: to describe mortality patterns, in general and by selected specific causes in valencia and alicante, to establish internal inequalities by districts, and to evaluate changes in the magnitude of these inequalities over time. methods: deaths among residents of valencia and alicante in the periods 1990-1992 and 1996-1998 were assigned to residential municipal districts. comparisons between the periods studied and between cities were carried out using the relative risk derived from a poisson regression model. a comparative mortality figure was calculated using the 17 largest groups of the 9th international classification of diseases. rates adjusted by the direct method, standardized mortality ratio, potential years of life lost (pyll) ratio and life expectancy at birth were calculated by districts in each study period. results: the risks of death from all causes decreased between the first and second periods in both men and women in both cities. life expectancy significantly increased in both cities for men and in valencia for women. the city of valencia had the greatest risk of death in both periods. some causes of death increased (groups 5 and 6, mental and nervous system disorders and sensory organ diseases). by districts, there was greater variability in valencia than in alicante, especially in districts 1 and 11 in valencia, which showed a high risk of death. conclusions: the process of internal mortality surveillance by districts is reproducible. in the city of valencia there were inequalities in mortality that were maintained over time. the city of alicante showed less internal variability in its mortality indicators.
La mortalidad evitable: ?cambios en el nuevo siglo?
Melchor,Inmaculada; Nolasco,Andreu; García-Senchermes,Carmen; Pereyra-Zamora,Pamela; Pina,José Aurelio; Moncho,Joaquín; Martínez,Purificación; Valero,Socorro; Zurriaga,óscar;
Gaceta Sanitaria , 2008, DOI: 10.1590/S0213-91112008000300005
Abstract: objectives: to analyze time trends and the geographical distribution of avoidable mortality in the autonomous community of valencia and its health departments by sex in the periods 1990-1994, 1995-1999, and 2000-2004. material and method: twenty-one causes of avoidable mortality were analyzed. the deaths analyzed corresponded to residents in the autonomous community of valencia between 1990 and 2004. age-standardized mortality rates were calculated using the direct method. to study time trends in the geographical area of interest for each period and sex, comparative mortality ratios were calculated. to analyze geographical distribution, standardized mortality rates were calculated by the indirect method. results: the total number of avoidable deaths was 38,061 (7.1% of overall deaths). men accounted for 76.2% and women for 23.8%. by groups, 82.4% were preventable and 17.6% were treatable. preventable deaths represented 86.5% of deaths in men and 69.4% of those in women. avoidable mortality in valencia significantly decreased in both sexes, this decrease being more marked in the group of treatable deaths and in men. mortality from lung cancer in women significantly increased. between 2000 and 2004, none of the health departments showed a significant excess of treatable mortality. conclusions: in the autonomous community of valencia, there was a greater decrease in avoidable mortality than in general mortality. the increase in lung cancer in women was notable.
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