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Search Results: 1 - 10 of 798577 matches for " María Inés; De la Hoz "
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Mortalidad y tuberculosis: análisis por causas múltiples en la Comunidad de Madrid (1991-1998)
Ordobás,María; Gandarillas,Ana; Fernández de la Hoz,Karoline; Fernández Rodríguez,Silvia;
Revista Espa?ola de Salud Pública , 2003, DOI: 10.1590/S1135-57272003000200002
Abstract: background: mortality from tuberculosis (tbc) is of characteristics such as to be studied with a multiple cause focus, as this disease is not generally fatal in itself, but is however linked to many deaths. this study is aimed at describing tbc as a cause of death in the autonomous community of madrid throughout the 1991-1998 period. method: a descriptive study of deaths in the autonomous community of madrid (1991-1998) entailing tbc as the main cause or as a diagnosis mentioned in the death statistics bulletin (dsb). the data was taken from the autonomous community of madrid death registry. variables analyzed: sex, age, year deceased, main cause and other diagnoses mentioned in the dsb. crude annual rates, standardized rates by age and specific rates by age and sex were calculated. a comparison was made as to the average number of diagnoses per death. results: a total of 1,206 deaths ?with tbc?, 915 males and 291 females, were recorded. the main cause was tbc in 566 of these cases, hiv/aids in 442 and other diseases in 198 cases. the ?with tbc? death rates showed peak values in 1995 among both males and females. there were an average of 3.4 diagnoses per death, this average having undergone an increase throughout the period under study (p<0.05) conclusions: with a multi-cause focus, tbc doubles in death rate statistics. its presence is associated with other diseases, especially with hiv/aids for the period analyzed.
Aproximación del dise o arquitectónico a la fractalidad
Juana María Sánchez González,Ascensión Moratalla de la Hoz,Agripina Sanz Pérez
Pensamiento Matemático , 2011,
Abstract: En el último siglo los avances de la Matemática han sidoespectaculares. Nuevas aplicaciones y nuevas necesidades handemandado “nuevas matemáticas” y la necesidad de dar respuesta a esasdemandas han propiciado nuevos descubrimientos como los objetosfractales. Por otro lado, el gran desarrollo producido en los mediosinformáticos ha potenciado su utilización en diversas ramas del arte y la técnica en general.
Epidemiología molecular de la infección por VHB y VHD en comunidades indígenas del departamento del Amazonas, Colombia
Diana Di Filippo-Villa,Fabián Cortés-Mancera,Fernando de la Hoz,María C Navas
Actualidades Biológicas , 2012,
Abstract:
Mortalidad y tuberculosis: análisis por causas múltiples en la Comunidad de Madrid (1991-1998)
Ordobás María,Gandarillas Ana,Fernández de la Hoz Karoline,Fernández Rodríguez Silvia
Revista Espa?ola de Salud Pública , 2003,
Abstract: Fundamento: La mortalidad por tuberculosis (TBC) reúne características para ser estudiada con un enfoque de causa múltiple, ya que esta enfermedad generalmente no produce la muerte pero se encuentra vinculada a muchas defunciones. El objetivo de este estudio es describir la TBC como causa de muerte en la Comunidad de Madrid (CM) entre 1991 y 1998, teniendo en cuenta las causas múltiples. Métodos: Estudio descriptivo de defunciones en la CM (1991-1998) en las que aparece TBC como causa básica o como diagnóstico mencionado en el Boletín Estadístico de Defunción (BED). Los datos se obtuvieron del Registro de Mortalidad de la CM. Variables analizadas: sexo, edad, a o de defunción, localización anatómica, causa básica y otros diagnósticos mencionados en el BED. Se han calculado tasas brutas anuales y estandarizadas por edad y específicas por edad y sexo. Se ha comparado el número medio de diagnósticos por defunción. Resultados: En el periodo estudiado se registraron 1.206 defunciones con TBC , 915 hombres y 291 mujeres. La causa básica fue TBC en 566, VIH/sida en 442 y otras enfermedades en 198. Las tasas de mortalidad con TBC han presentado valores máximos en 1995, tanto en varones como en mujeres. El número medio de diagnósticos por defunción es de 3,4 y aumenta a lo largo del período de estudio (p<0,05). Conclusiones: Con un enfoque multicausal la TBC se duplica en las estadísticas de mortalidad. Su presencia está asociada con otras enfermedades, especialmente con el VIH/sida en el período analizado.
Caracterización clínica y sociodemográfica de casos nuevos de lepra en municipios endémicos y no endémicos de Colombia
Cuevas Ortiz,Liliana; La Hoz,Fernando de; León,Clara Inés; Inírida Guerrero,Martha; Gamboa,Luis Arturo; Araujo,María Juliana;
Revista de Salud Pública , 2004, DOI: 10.1590/S0124-00642004000400003
Abstract: objective: to describe some socio-demographical, clinical and epidemiological characteristics of the new cases of leprosy and household reported from 9 endemic and 1 non-endemic towns in colombia. methodology: a descriptive analysis was made from the information of the new leprosy cases included in the leprosy control and elimination program of the participant towns in the study carried out between november 2002 and october 2003. results: 62.2 % of the cases presented the multibacillary form and 63 % of them were males; the median age was 46.5 years. 55.6 % of the new cases had first or second level impairments at the moment of diagnosis. this percentage is higher than the one reported in 2003 at a nationwide level, 37.5 %. a positive correlation was observed between the unsatisfied basic needs index (nbi) and the disease incidence by town (r=0.69, p=0.0180). conclusions: our findings highlight the little response of the leprosy control program in some towns to carry out the active and timely detection of the diseased people, besides making evide nt the historical relationship that this disease has had with poverty.
Seroprevalencia de infección por virus de la hepatitis B y por virus de la inmunodeficiencia humana en una población de pacientes con múltiples transfusiones en cuatro hospitales, Colombia, Sur América
Beltrán,Mauricio; Navas,María Cristina; Arbeláez,María Patricia; Donado,Jorge; Jaramillo,Sergio; De la Hoz,Fernando; Estrada,Cecilia; Cortés,Lucía del Pilar; de Maldonado,Amalia; Rey,Gloria; ,;
Biomédica , 2009,
Abstract: introduction. although the transfusion of blood products is a common therapy, it carries risk of transmission of infections, especially hepatitus b virus (hbv) and human immunodeficiency virus (hiv). objective. as part of the blood safety initiative, the pan american health organization supported studies to estimate the prevalence of human immunodeficiency virus and hepatitis b virus infection in colombia. materials and methods. between february and september 2003, a cross sectional study examined 500 multiply-transfused patients at four hospital centers in the cities of bogotá and medellín. the serum samples were analyzed by enzyme immunoassay (eia) using commercial kits. results. the seroprevalence of hiv infection was 1.8% (ci 95% 0.5-3.1). the seroprevalence of hbv infection was 18.6% (ci 95% 15.1-22.1). six risk factors were associated with hiv and hbv infection: (1) receiving more than 48 units of blood or blood components, (2) diagnosis of hemophilia, (3) receiving transfusions for more than one year, (4) receiving whole blood, (5) co-infection with hepatitis c virus and (6) receiving transfusions before 1993. conclusions. this is the first epidemiological study with a significant sample size performed in multiply-transfused patients in colombia. the principal finding was the high prevalence of hbv and hiv infection in patients with diagnosis of hemophilia compared with the other five groups of multiply-transfused patients.
Metodología del estudio de cohortes del proyecto ITINERE sobre consumidores de heroína en tres ciudades espa?olas y características básicas de los participantes
Fuente de Hoz,Luis de la; Brugal Puig,M Teresa; Ballesta Gómez,Rosario; Bravo Poetela,María J; Barrio Anta,Gregorio; Domingo Salvany,Antonia; Silva do Rosario,Teresa; Ambrós Hortensi,Mireia; ,;
Revista Espa?ola de Salud Pública , 2005, DOI: 10.1590/S1135-57272005000400005
Abstract: background: cohort studies make it possible to monitor the health impact of drug use and to identify related factors. we describe the methodology and baseline characteristics of a cohort of heroin users designed with this objective. methods: the participants were 991 young, community-recruited heroin users in barcelona, madrid and seville. most subjects were named by other participants (39.7%) or by non-participating drug users or ex-users (44.7%). a computer-aided questionnaire was administered (self-administered with audio for questions related with sex). a dried-blood spot sample was collected and anthropometric measurements were made. both participants and recruiters received remuneration. univariate and bivariate statistical methods were used. results: some 42.4% had changed the main route of heroin administration, mainly to injection in barcelona and to the pulmonary route in seville. about 75.8% (barcelona), 49.8% (madrid), and 15.5% (seville) had injected drugs in the last 12 months. in madrid and seville, 96-97% used heroin in base form, while in barcelona heroin hydrochloride predominated. heroin and cocaine were frequently mixed in the same dose (generally base cocaine in madrid and seville, and cocaine hydrochloride in barcelona). conclusions: important geographic differences persist in the prevalence of drug injection and in the patterns of heroin and cocaine use, which could explain the unequal distribution of some health problems. the difficulties encountered in recruiting the sample suggest that the incidence of heroin use has declined considerably.
Indicadores de rentabilidad: herramientas para la toma decisiones financieras en hoteles de categoría media ubicados en Maracaibo
De La Hoz Suárez,Betty; Ferrer,María Alejandra; De La Hoz Suárez,Aminta;
Revista de Ciencias Sociales , 2008,
Abstract: this study seeks to establish the importance of information for taking financial decisions within businesses; it describes a system of management control based on indicators as an important tool for information flow. the research is of a descriptive type, with a documentary, field, non-experimental design. initially, it deals with theory documented using different authors, a study that permitted the preparation of a data-collecting questionnaire and its application to five mid-category hotels located in maracaibo. conclusions were that in companies it is important to have financial indicators as tools for taking business decisions. empirical information demonstrates that the companies under study increased their profitability moderately during three economic periods (2001-2003). for example, in terms of economic profitability, most of the hotels went from a profitability that oscillated between 1% and 10% in 2001, to profitability between 11% and 20% in 2002 and 2003, a product of good decisions taken regarding the formulation and implementation of financial strategies and at the same time, thanks to management control based on indicators.
Detección de hepatitis B oculta en donantes de bancos sangre, Colombia 2008-2009
Beltrán,Mauricio; Berrío-Pérez,Maritza; Bermúdez,María Isabel; Rey-Benito,Gloria; Camacho,Bernardo; Forero,Patricia; Molina,Gloria Cristina; Fals,Orlando; Pisciotti,Isabel; Oliveros,Yulieth; Cortés,Armando; De La Hoz,Fernando;
Biomédica , 2011,
Abstract: introduction. in colombian blood banks, screening for the surface antigen of hepatitis b is mandatory in all units collected. testing of antibody against core antigens is not administered, although this method may be useful to detect donors infected with the hepatitis b virus. objective. the prevalence of occult hepatitis b was determined by applying a full-serological profile of hepatitis b virus to blood samples of blood donors. materials and methods. between april 2008 and october 2009, a prospective cross sectional study was conducted using 628 samples from donors to blood banks located in four colombian cities. prevalence for hepatitis b had been previously recorded for these cities. serological screening was performed for the complete virus; then nucleic acid amplification was tested in sera that were anti-hb creactive and with a titer of anti-hbs a?¤30 mui/ml. results. of the 628 samples tested, 129 met the serological criteria established to be tested nucleic acid amplification. none of them demonstrated evidence of nucleic acid amplification of hepatitis b virus. conclusions. this is the first study in colombia to detect the presence of blood donors that may be occult hepatitis b carriers. none was detected.
DINáMICA DEL FITOPLANCTON DE LA CIéNAGA GRANDE DE SANTA MARTA, CARIBE COLOMBIANO
De La Hoz Aristizábal,María Virginia;
Boletín de Investigaciones Marinas y Costeras - INVEMAR , 2004,
Abstract: in order to assess phytoplankton dynamics in the ciénaga grande de santa marta, bimonthly sampling was done at six stations from march 1996 to february 1997. salinity showed wide ranges so the year could be divided in four seasons. higher salinities were related to higher phytoplankton density, while lower salinities were related to lower phytoplankton densities and increased species richness. 224 taxa were recorded, and the general trend was towards a low diversity with a few dominant species, and most of them rare. cyanophytes showed the highest abundances all year. salinity, turbidity and orthophosphates were the environmental factors best related to the biotic data. seasonal changes in phytoplankton concerning to meteorological conditions, fresh and tidal floods and dredging of clarín canal are discussed.
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