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Search Results: 1 - 10 of 376583 matches for " DARíO I.; CáRDENAS "
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Crisis del centralismo y nuevos retos para las entidades territoriales: una mirada desde Colombia
RESTREPO,DARíO I.; CáRDENAS,RAúL ERNESTO;
Cuadernos del Cendes , 2004,
Abstract: this paper explains how the relationships between decentralisation, economic globalization and privatization processes have changed the interaction and the responsibilities of several government levels, by analyzing the case of colombia. this influence can be observed in developing issues, supply of services and the political system. the paper explores the tension that arises between central, departmental and local governments about making decisions of public policies in different fields: political decentralization, fiscal issues, public funds spending, and developing and security policies
Crisis del centralismo y nuevos retos para las entidades territoriales: una mirada desde Colombia
DARíO I. RESTREPO,RAúL ERNESTO CáRDENAS
Cuadernos del Cendes , 2004,
Abstract: Este artículo explica, desde el caso colombiano, cómo las relaciones entre descentralización, globalización económica y el proceso de privatización de los activos estatales han cambiado la interacción y las responsabilidades entre los diferentes niveles de gobierno. Este hecho es observado a partir de las políticas de desarrollo, la oferta de servicios y el sistema político. Igualmente explora la tensión que surge entre los diferentes niveles de gobierno acerca de la toma de decisiones de políticas públicas en diferentes áreas: descentralización política, cuestiones fiscales, gasto de los fondos públicos y políticas de desarrollo y seguridad. This paper explains how the relationships between decentralisation, economic globalization and privatization processes have changed the interaction and the responsibilities of several government levels, by analyzing the case of Colombia. This influence can be observed in developing issues, supply of services and the political system. The paper explores the tension that arises between central, departmental and local governments about making decisions of public policies in different fields: political decentralization, fiscal issues, public funds spending, and developing and security policies
La colaboración interuniversitaria en Chile. El caso de proyectos MECESUP desde la perspectiva de las ciencias de la complejidad
Carolina Urbina,Juan Pablo Cárdenas,Darío Cárdenas
Calidad en la Educación , 2012,
Abstract: COLLABORATION AMONG CHILEAN UNIVERSITIES. THE CASE OF MECESUP PROJECTS UNDER THE PERSPECTIVE OF COMPLEXITY SCIENCES Carolina Urbina, Juan Pablo Cárdenas, Darío CárdenasABSTRACTThis study has analysed the collaboration among Chilean universities in the program MECESUP. The results show that collaboration is an unusual phenomenon where regional institutions have taken a leading role in recent years in a process characterized by homogeneous networks of units responsible for projects implementation. However, most remarkable in this study is that results obtained seem to be related with a metric of complexity proposed for the institutions involved in this program and the heterogeneity of the studied system.
Exposición a Solventes Orgánicos y Efectos Genotóxicos en Trabajadores de Fábricas de Pinturas en Bogotá
Cárdenas-Bustamante,Omayda; Varona-Uribe,Marcela; Pati?o-Florez,Rosa I.; Groot-Restrepo,Helena; Sicard-Suárez,Diana; Tórres-Carvajal,María M.; Pardo-Pardo,Darío;
Revista de Salud Pública , 2007, DOI: 10.1590/S0124-00642007000200011
Abstract: objective investigating the degree of exposure to organic solvents and related genotoxic consequences in paint-factory workers by using cytogenetic monitoring and determining micronuclei frequency in lymphocytes and dna damage as assessed by comet assays. methodology excretion of phenol and hippuric and methylhippuric acids in urine was investigated as biomarkers for benzene, toluene and xylene exposure. urine samples were taken in two paint-factories in bogotá and in a non-exposed control group. benzene, toluene and xylene concentrations in air were measured in the work setting. micronuclei and simple dna chain breakage frequency were evaluated in peripheral blood sample mononuclear cells to assess early genetic effects. results hippuric acid concentration was found to be within normal values; by contrast, phenol and methylhippuric acid sample concentrations were above normal values by 3,3 % and 50,8 %, respectively. benzene concentration in air was above permissible limits in one of the factories. there were no statistical differences regarding genetic biomarkers between exposed and non-exposed workers. conclusions organic solvent levels in the samples were apparently low, which is consistent with the absence of genotoxicity in cells. this study represents a step forward in research in occupational health surveillance.
Seroprevalence and risk factors associated to BHV-1 and DVBV in dairy herds in Pasto, Colombia, in 2011
Cede?o Quevedo,Darío; Benavides Benavides,Bibiana; Cárdenas,Guillermo; Herrera,Carlos;
Revista Lasallista de Investigación , 2011,
Abstract: introduction. the bovine herpes virus type i (bhv-1) causes the disease called infectious bovine rhinotracheitis (ibr), infects cattle and presents clinical manifestations such as pustular vulvo-vaginitis, abortion, rhinotracheitis and meningoencephalitis. objective. this research work aims to determine the prevalence of serum antibodies to bovine herpesvirus-1 (bhv-1) and bovine diarrhea (bvd) virus and risk factors associated to these infections in dairy herds in the municipality of pasto, colombia. materials and methods. farms above 2527 meters over the sea level were selected. a total of 238 serum samples were collected and analyzed using the elisa test to determine the seropositivity against bhv-1 and bvd virus. a questionnaire, which included variables related to cattle, plus a health and a management measure were filled out in each herd. a multivariate analysis binary logistic regression was used with a confidence interval of 95% (p <0.05) using the program spss19 ?. results. the estimated prevalence of exposure to bhv-1 in the municipality of pasto was 17.65% and 32.77% for bovine viral diarrhea at the herd level. the binary logistic regression showed that the use of a bull instead of artificial insemination (or = 30.56, ci 6.87, 135.98, p <0.0001) is a risk factor with bhv-1, and abortion (or = 22.70, ci 4.21, 122.42, p <0.0001) and acquisition of new animals (or = 34.90, ci 6.30, 193.43. p <0.0001) are risk factors with bvd. conclusions. the prevalence of infectious rhinotracheitis and bovine viral diarrhea in dairy herds in pasto does not indicate the existence of the disease in animals serologically positive, but suggests that at some point in their lives they were exposed to the virus. from the risk factors identified in this work, recommendations can be established for an effective control of reproductive diseases in the region.
Seroprevalence and risk factors associated to BHV-1 and DVBV in dairy herds in Pasto, Colombia, in 2011
Darío Cede?o Quevedo,Bibiana Benavides Benavides,Guillermo Cárdenas,Carlos Herrera
Revista Lasallista de Investigación , 2011,
Abstract: Introduction. The bovine herpes virus type I (BHV-1) causes the disease called Infectious Bovine Rhinotracheitis (IBR), infects cattle and presents clinical manifestations such as pustular vulvo-vaginitis, abortion, rhinotracheitis and meningoencephalitis. Objective. This research work aims to determine the prevalence of serum antibodies to bovine herpesvirus-1 (BHV-1) and bovine diarrhea (BVD) virus and risk factors associated to these infections in dairy herds in the municipality of Pasto, Colombia. Materials and methods. Farms above 2527 meters over the sea level were selected. A total of 238 serum samples were collected and analyzed using the ELISA test to determine the seropositivity against BHV-1 and BVD virus. A questionnaire, which included variables related to cattle, plus a health and a management measure were filled out in each herd. A multivariate analysis binary logistic regression was used with a confidence interval of 95% (p <0.05) using the program SPSS19 . Results. The estimated prevalence of exposure to BHV-1 in the municipality of Pasto was 17.65% and 32.77% for bovine viral diarrhea at the herd level. The binary logistic regression showed that the use of a bull instead of artificial insemination (OR = 30.56, CI 6.87, 135.98, P <0.0001) is a risk factor with BHV-1, and abortion (OR = 22.70, CI 4.21, 122.42, P <0.0001) and acquisition of new animals (OR = 34.90, CI 6.30, 193.43. P <0.0001) are risk factors with BVD. Conclusions. The prevalence of infectious rhinotracheitis and bovine viral diarrhea in dairy herds in Pasto does not indicate the existence of the disease in animals serologically positive, but suggests that at some point in their lives they were exposed to the virus. From the risk factors identified in this work, recommendations can be established for an effective control of reproductive diseases in the region.
Emociones como Predictores del Perdón en el Contexto de la Violación a los Derechos Humanos en Chile
Cárdenas,Manuel; Ascorra,Paula; San Martín,Marcela; Rodríguez,Marcela; Páez,Darío;
Psicoperspectivas , 2013, DOI: 10.5027/psicoperspectivas-Vol12-Issue1-fulltext-241
Abstract: data was taken from a sample of people that were/were not affected by political violence in chile (n=1267) in order to study the predictive ability of emotions on beliefs about forgiveness. the multiple regression analysis conducted indicates that the effect of assessed emotions, even if statistically significant, is of little relevance for the general sample (r2=0.05). with direct victims the regression coefficient was higher than for the other groups (r2=0.11), emotions that are the top contributors to the explanation are wrath (b=-30), pain (b=0.26) and hope (b=0.20), predict that lower levels of wrath and higher levels of pain and hope, will increase the level of agreement in victims of political violence to forgive those that hurt them in the past.
Genetic variability among populations of Lutzomyia (Psathyromyia) shannoni (Dyar 1929) (Diptera: Psychodidae: Phlebotominae) in Colombia
Cárdenas, Estrella;Munstermann, Leonard E;Martínez, Orlando;Corredor, Darío;Ferro, Cristina;
Memórias do Instituto Oswaldo Cruz , 2001, DOI: 10.1590/S0074-02762001000200010
Abstract: polyacrylamide gel electrophoresis was used to elucidate genetic variation at 13 isozyme loci among forest populations of lutzomyia shannoni from three widely separated locations in colombia: palambí (nari?o department), cimitarra (santander department) and chinácota (norte de santander department). these samples were compared with a laboratory colony originating from the magdalena valley in central colombia. the mean heterozygosity ranged from 16 to 22%, with 2.1 to 2.6 alleles detected per locus. nei's genetic distances among populations were low, ranging from 0.011 to 0.049. the estimated number of migrants (nm=3.8) based on wright's f-statistic, fst, indicated low levels of gene flow among lu. shannoni forest populations. this low level of migration indicates that the spread of stomatitis virus occurs via infected host, not by infected insect. in the colony sample of 79 individuals, the gpi locus was homozygotic (0.62/0.62) in all females and heterozygotic (0.62/0.72) in all males. although this phenomenon is probably a consequence of colonization, it indicates that gpi is linked to a sex determining locus.
Genetic variability among populations of Lutzomyia (Psathyromyia) shannoni (Dyar 1929) (Diptera: Psychodidae: Phlebotominae) in Colombia
Cárdenas Estrella,Munstermann Leonard E,Martínez Orlando,Corredor Darío
Memórias do Instituto Oswaldo Cruz , 2001,
Abstract: Polyacrylamide gel electrophoresis was used to elucidate genetic variation at 13 isozyme loci among forest populations of Lutzomyia shannoni from three widely separated locations in Colombia: Palambí (Nari o Department), Cimitarra (Santander Department) and Chinácota (Norte de Santander Department). These samples were compared with a laboratory colony originating from the Magdalena Valley in Central Colombia. The mean heterozygosity ranged from 16 to 22%, with 2.1 to 2.6 alleles detected per locus. Nei's genetic distances among populations were low, ranging from 0.011 to 0.049. The estimated number of migrants (Nm=3.8) based on Wright's F-Statistic, F ST, indicated low levels of gene flow among Lu. shannoni forest populations. This low level of migration indicates that the spread of stomatitis virus occurs via infected host, not by infected insect. In the colony sample of 79 individuals, the Gpi locus was homozygotic (0.62/0.62) in all females and heterozygotic (0.62/0.72) in all males. Although this phenomenon is probably a consequence of colonization, it indicates that Gpi is linked to a sex determining locus.
Efectividad de las presiones de sello en la vía aérea con la máscara laríngea clásica y la supreme en pacientes adultos sometidos a cirugía oftalmológica por personal de anestesia en entrenamiento
álvarez,Catalina María; Cárdenas,Sergio; Soto,Mónica Lucía; Arroyave,Héctor Darío; Arenas,Iván Darío; González,Nelson Javier;
Revista Colombiana de Anestesiología , 2009,
Abstract: introduction: new anaesthetic techniques mean that devices must be developed which provide advantages in terms of sealing pressure and ventilation (without intubation′s sympathetic system component). this study involved a new extraglotic device which was inserted by personnel undergoing training in the use of anaesthesia during ophthalmology surgery. the main objective was to compare differences in airway sealing pressure in latin-american adults undergoing outpatient ophthalmology surgery when two types of extraglotic devices were inserted by trainee medical personnel. the secondary objectives involved comparing insertion time, percentage amventilatory success rate and evidence of postoperative airway trauma. methods: this was a randomised, double-blind, clinical trial which compared the effectiveness of the classic laryngeal mask airway (clma) to the laryngeal mask airway supreme (lma-s) to ensure airway sealing pressure in 97 asa i-iii adults having no difficult airway predictors who were undergoing programmed ophthalmology surgery. results: lma-s reached higher mean sealing pressures at the beginning (24.2 cm h2o cf 19.2 cm h2o) and at the end of the procedure (24.6 cm cf 20.4 cm h2o) (p<0.05). insertion times were similar and there was no difference in the incidence of postoperative adverse effects. conclusions: lma-s achieved a higher mean sealing pressure than clma. they had similar insertion times and adverse effect incidence when trainee medical inserted them into adult patients undergoing outpatient ophthalmology surgery.
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