32 results
Search Results
2. Geotechnical behavior of a tropical residual soil contaminated with gasoline.
- Author
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Echeverri-Ramírez, Óscar, Valencia-González, Yamile, Toscano-Patiño, Daniel Eduardo, Ordoñez-Muñoz, Francisco A., Arango-Salas, Cristina, and Osorio-Torres, Santiago
- Subjects
SOILS ,SOIL pollution ,GASOLINE ,BATHOLITHS ,SCANNING electron microscopy - Abstract
Copyright of Dyna is the property of Universidad Nacional de Colombia, Medellin, Facultad de Minas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
- Full Text
- View/download PDF
3. Large-scale releases and establishment of wMel Wolbachia in Aedes aegypti mosquitoes throughout the Cities of Bello, Medellín and Itagüí, Colombia.
- Author
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Velez, Iván Darío, Uribe, Alexander, Barajas, Jovany, Uribe, Sandra, Ángel, Sandra, Suaza-Vasco, Juan David, Mejia Torres, Maria Camila, Arbeláez, María Patricia, Santacruz-Sanmartin, Eduardo, Duque, Lorena, Martínez, Luis, Posada, Tania, Patiño, Ana Cristina, Gonzalez, Sandra Milena, Velez, Ana Lucía, Ramírez, Jennifer, Salazar, Marlene, Gómez, Sandra, Osorio, Jorge E., and Iturbe-Ormaetxe, Inaki
- Subjects
AEDES aegypti ,DENGUE hemorrhagic fever ,CITIES & towns ,WOLBACHIA ,MOSQUITOES ,DENGUE viruses - Abstract
Background: The wMel strain of Wolbachia has been successfully introduced into Aedes aegypti mosquitoes and has been shown to reduce the transmission of dengue and other Aedes-borne viruses. Here we report the entomological results from phased, large-scale releases of Wolbachia infected Ae. aegypti mosquitoes throughout three contiguous cities located in the Aburrá Valley, Colombia. Methodology/principal findings: Local wMel Wolbachia-infected Ae. aegypti mosquitoes were generated and then released in an initial release pilot area in 2015–2016, which resulted in the establishment of Wolbachia in the local mosquito populations. Subsequent large-scale releases, mainly involving vehicle-based releases of adult mosquitoes along publicly accessible roads and streets, were undertaken across 29 comunas throughout Bello, Medellín and Itagüí Colombia between 2017–2022. In 9 comunas these were supplemented by egg releases that were undertaken by staff or community members. By the most recent monitoring, Wolbachia was found to be stable and established at consistent levels in local mosquito populations (>60% prevalence) in the majority (67%) of areas. Conclusion: These results, from the largest contiguous releases of wMel Wolbachia mosquitoes to date, highlight the operational feasibility of implementing the method in large urban settings. Based on results from previous studies, we expect that Wolbachia establishment will be sustained long term. Ongoing monitoring will confirm Wolbachia persistence in local mosquito populations and track its establishment in the remaining areas. Author summary: The introduction of the naturally occurring wMel Wolbachia strain into Aedes aegypti mosquitoes has been shown to reduce the ability of the mosquitoes to transmit dengue and other viruses. Following engagement with communities to gain acceptance and support, a series of large-scale releases of Ae. aegypti mosquitoes that contained wMel Wolbachia, were undertaken across the cities of Bello, Medellín and Itagüí in Colombia. These releases were undertaken under operational conditions with the aim of rapidly scaling the intervention in response to the Zika virus crisis. Mosquito populations were monitored during and after releases to determine the levels of Wolbachia and whether it persisted in the local mosquitoes. Wolbachia was found to be stable and established at consistent levels in local mosquito populations in the majority of areas. On-going monitoring in these areas will determine whether Wolbachia persists and also whether it establishes at a high level in the remaining areas. This intervention forms the basis of an epidemiological study to assess the impact of operational deployment of wMel Wolbachia on the reduction of the incidence of notified dengue cases and virologically-confirmed dengue. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. PATRIMONIO GEOLÓGICO Y GEODIVERSIDAD: BASES PARA SU DEFINICIÓN EN LA ZONA ANDINA DE COLOMBIA: CASO SANTA FE DE ANTIOQUIA.
- Author
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JARAMILLO-ZAPATA, JULIÁN ESTEBAN, CABALLERO-ACOSTA, JOSÉ HUMBERTO, and MOLINA-ESCOBAR, JORGE MARTÍN
- Subjects
GEODIVERSITY ,SUSTAINABLE development ,ENVIRONMENTAL management ,VOLCANIC ash, tuff, etc. - Abstract
Copyright of Boletín de Ciencias de la Tierra is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
5. Gasificación de biomasa residual en el sector floricultor, caso: Oriente Antioqueño.
- Author
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Yepes Maya, Diego Mauricio and Janna, Farid Chejne
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BIOMASS gasification ,CUT flower industry ,BIOMASS ,HYDRANGEAS - Abstract
Copyright of Revista ION is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
6. La escalera pivotante en la arquitectura de tradición antioqueña.
- Author
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Berrío Osorio, Cristian Andrés
- Subjects
STAIR design ,VERNACULAR architecture ,TWENTIETH century ,PROBLEM solving - Abstract
Copyright of Dearq is the property of Universidad de los Andes and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
- Full Text
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7. Soil natural capital vulnerability to environmental change. A regional scale approach for tropical soils in the Colombian Andes.
- Author
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Machado, Jenny, Villegas-Palacio, Clara, Loaiza, Juan Carlos, and Castañeda, Dario A.
- Subjects
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SOIL ecology , *GLOBAL environmental change , *LAND use , *GOVERNMENT policy , *ECOSYSTEM services - Abstract
Graphical abstract Highlights • An analysis of soil natural capital vulnerability at a regional scale is presented. • Land cover trajectories determine the inherent and dynamic properties of the soil. • Inherent and dynamic properties of soil natural capital determine its vulnerability. • Replication in other basins with similar soil and climate conditions are required. Abstract In recent decades, the literature on ecosystem services has pointed to the need to quantify and characterise Soil Natural Capital (SNC) under different types of land use and cover. This points to the need of understanding the SNC processes which define the provision of ecosystem services, as well as their changes through anthropogenic time. Tropical regions are subjected to a high rate of land use transformation which may change the properties of the soil, and consequently the potential provision of ecosystem services. This paper presents a proposal for the quantification and characterization of SNC through an index of vulnerability to changes in land cover vegetation and their influence on the provision of ecosystem services for the prevention of soil erosion in tropical soils. The proposed vulnerability index considers aspects of the SNC such as the changes produced in the dynamic properties of different soil types under different types of land-use. The proposed analysis was implemented in a basin measuring 1.280 km2 situated in the department of Antioquia (Colombia) in humid tropical conditions, where 93% of the soil presents andic properties. Understanding the consequences of the land cover changes for the provision of ecosystem services, as well as how to obtain the spatial representation of the vulnerability current from SNC, allow the identification of areas in which the provision of ecosystem services is at risk inasmuch as the definition of land use policies. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
8. PRONÓSTICOS DEMENDA DE ENERÍA CORTO PLAZO. CASCO DE CONTROLDE PRONÓSTICO NOROESTE (ÁREA ANTIOQUIA-CHOCÓ).
- Author
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Ospina, Héctor Tabares and Riveros, Jesús Hernández
- Subjects
ECONOMIC forecasting ,STATISTICS ,QUALITY assurance - Abstract
Copyright of Revista Tecno Lógicas is the property of Instituto Tecnologico Metropolitano and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2009
- Full Text
- View/download PDF
9. Desarrollo local y regiones rurales en Antioquia: el papel de la gestión pública en contextos de transformación productiva.
- Author
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Lotero C., Jorge A. and Hernández A., Juan E.
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DECENTRALIZATION in government ,PUBLIC administration ,AGRICULTURE ,RURAL geography - Abstract
Copyright of Territorios: Revista de Estudios Regionales y Urbanos is the property of Universidad de los Andes and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2001
10. Modeling the Risk of Infectious Diseases Transmitted by Aedes aegypti Using Survival and Aging Statistical Analysis with a Case Study in Colombia.
- Author
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Velasco, Henry, Laniado, Henry, Toro, Mauricio, Catano-López, Alexandra, Leiva, Víctor, and Lio, Yuhlong
- Subjects
AEDES aegypti ,COMMUNICABLE diseases ,ARBOVIRUS diseases ,EMERGING infectious diseases ,STATISTICS ,VITAL capacity (Respiration) ,CHIKUNGUNYA - Abstract
Many infectious diseases are deadly to humans. The Aedes aegypi mosquito is the principal vector of infectious diseases that include chikungunya, dengue, yellow fever, and zika. Some factors such as survival time and aging are vital in its development and capacity to transmit the pathogens, which in turn are affected by environmental factors such as temperature. In this paper, we consider aging as the biological wear and tear presented in some mosquito populations over time, whereas survival is considered as the maximum time that a mosquito lives. We propose statistical methods that are commonly used in engineering for reliability analysis to compare transmission riskiness among different mosquitoes. We conducted a case study in three Colombian cities: Bello, Riohacha, and Villavicencio. In this study, we detected that the Aedes aegypi female mosquitoes in Bello live longer than in Riohacha and Villavicencio, and the females in Riohacha live longer than those in Villavicencio. Regarding aging, the females from Riohacha age slower than in Villavicencio and the latter age slower than in Bello. Mosquito populations that age slower are considered young and the other ones are old. In addition, we detected that the females from Bello in the temperature range of 27 ∘ C–28 ∘ C age slower than those in Bello at higher temperatures. In general, a young female has a higher risk of transmitting a disease to humans than an old female, regardless of its survival time. These findings have not been previously reported in studies of this type of infectious diseases and contributed to new knowledge in biomedicine. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
11. Differential Hatching, Development, Oviposition, and Longevity Patterns among Colombian Aedes aegypti Populations.
- Author
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Arévalo-Cortés, Andrea, Granada, Yurany, Torres, David, and Triana-Chavez, Omar
- Subjects
AEDES aegypti ,OVIPARITY ,LONGEVITY ,ARBOVIRUS diseases ,INSECTICIDE resistance ,INFECTIOUS disease transmission ,LIFE cycles (Biology) ,MOSQUITOES - Abstract
Simple Summary: Aedes aegypti is a mosquito that transmits viruses responsible for several diseases in humans, such as dengue, Zika, and chikungunya. It is crucial to study mosquito populations from different countries and regions because control of disease transmission with insecticides can be more effective if adjusted to each population's characteristics. For this reason, we determined several features of mosquitoes captured in different cities of Colombia: Neiva, Bello, Itagüí, and Riohacha. These included the length of their lifespan, the number of eggs they lay, and the stages in which they die. We found specific patterns for each population. This knowledge will help control programs determine the optimal times to apply insecticides and make surveillance, as well as the type of insecticide used. Dengue, Zika, and chikungunya are arboviral diseases for which there are no effective therapies or vaccines. The only way to avoid their transmission is by controlling the vector Aedes aegypti, but insecticide resistance limits this strategy. To generate relevant information for surveillance and control mechanisms, we determined life cycle parameters, including longevity, fecundity, and mortality, of Colombian Ae. aegypti populations from four different geographical regions: Neiva, Bello, Itagüí, and Riohacha. When reared at 28 °C, Bello had the shortest development time, and Riohacha had the longest. Each mosquito population had its own characteristic fecundity pattern during four gonotrophic cycles. The survival curves of each population were significantly different, with Riohacha having the longest survival in both males and females and Bello the shortest. High mortality was observed in mosquitoes from Neiva in the egg stage and for Bello in the pupae stage. Finally, when mosquitoes from Neiva and Bello were reared at 35 °C, development times and mortality were severely affected. In conclusion, each population has a unique development pattern with an innate trace in their biological characteristics that confers vulnerability in specific stages of development. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
12. Factores del perfil del emprendedor y de la gestión del servicio que inciden en la supervivencia empresarial: casos del oriente de Antioquia (Colombia).
- Author
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Morales-Gualdrón, Silvia Teresa and Pineda Zapata, Uriel
- Subjects
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ENTREPRENEURSHIP , *QUALITY control , *TOTAL quality management , *QUALITY of service , *BUSINESS success - Abstract
This paper explores the relationships between the characteristics of the entrepreneur's profile, the management service practices and the impact of these factors on firm survival, as an indicator of success. Nine cases of native successful entrepreneurs of Eastern Antioquia (Colombia) were analyzed using structured interview technique. The results suggest that some features of the entrepreneur's profile and pivotal attributes of the service quality are common to the studied cases. Finally, a causal model structured it is proposed for establish what are the characteristics of the entrepreneur that can affect their attributes of service quality, and also, which kind of attributes can affect the survival. A further work would be to establish if there are cultural aspects of the origin region that affect their management practices, in turn, that could be decisive for the survival and growth of the firms. [ABSTRACT FROM AUTHOR]
- Published
- 2015
13. COEFICIENTE "U" DE INNOVACIÓN -- PROPUESTA DE MEDICIÓN DE BARRERAS PARA LA INNOVACIÓN. APLICACIÓN EN 200 EMPRESAS DE COLOMBIA.
- Author
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Zartha Sossa, Jhon Wilder, Arango Alzate, Bibiana, Medina, Jose Gamaliel, and Avalos, Andres Felipe
- Subjects
INNOVATIONS in business ,BUSINESS enterprises ,NONTARIFF trade barriers ,COEFFICIENTS (Statistics) - Abstract
Copyright of Revista de Administração e Inovação (RAI) is the property of Revista de Administracao e Inovacao- RAI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
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14. "Desconductadas costumbres" y "semillas de la discordia". Prácticas de oposición y resistencia a los jefes políticos en el nordeste de Antioquia (1821-1843).
- Author
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Rendón, Juan Carlos Vélez
- Subjects
- *
POLITICAL integration , *POLITICAL leadership , *POLITICAL opposition , *POLITICIANS , *DECENTRALIZATION in government ,COLOMBIAN politics & government, 1810- - Abstract
This paper studies attempts to political integration made in Northeastern Antioquia by political leaders in the first half of the 19th century. It argues that the attempt to extend centralization networks led by political leaders In order to Implement greater social, political, and administrative control was hindered by mayors and other local officials, as well as by those interested In preserving certain liberties In order to protect individual interests. These conflicts, when framed within the institutional structure, show simultaneously the expansion of the State and the persistence of the factors which limited its local establishment. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
15. Niños y niñas cuidados: el reconocimiento mutuo en la experiencia de las madres comunitarias antioqueñas.
- Author
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Hernando Bedoya Hernández, Mauricio
- Subjects
CHILD care ,COMMUNITY welfare councils ,COMMUNITY centers ,HEALTH self-care - Abstract
Copyright of Revista Virtual Universidad Católica del Norte is the property of Revista Virtual Universidad Catolica del Norte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
16. EL CONSUMO Y LA LÍNEA DE POBREZA EN ANTIOQUIA: APROXIMACIONES MEDIANTE LA TEORÍA DEL CONSUMIDOR.
- Author
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Camilo Galvis Ciro, Juan
- Subjects
CONSUMPTION (Economics) ,POVERTY ,CONSUMER preferences ,INCOME inequality ,COST of living ,ENGEL'S law - Abstract
Copyright of Semestre Económico is the property of Sello Editorial de la Universidad de Medellin and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
17. Competitividad y comercio exterior de las Pymes del sector textil-confecciones del Valle de Aburrá: incidencia del tipo de cambio.
- Author
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Aníbal Restrepo Morales, Jorge and Gabriel Vanegas, Juan
- Subjects
TEXTILE industry ,ECONOMIC competition ,INTERNATIONAL trade ,FOREIGN exchange rates ,SMALL business ,MARGINAL distributions ,COST ,PROFIT - Abstract
Copyright of Revista Virtual Universidad Católica del Norte is the property of Revista Virtual Universidad Catolica del Norte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
18. PROPUESTA METODOLÓGICA BASADA EN UN ANÁLISIS MULTICRITERIO PARA LA IDENTIFICACIÓN DE ZONAS DE AMENAZA POR DESLIZAMIENTOS E INUNDACIONES.
- Author
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González Valencia, Juan Esteban
- Subjects
- *
STATISTICS , *MULTIPLE regression analysis , *COMPUTER software , *ECOLOGICAL zones - Abstract
This paper shows the obtained results applying two differents methods to identify threat zones in the Area Metropolitana del Valle de Aburrá (Antioquia, Colombia). The first method was based in a statistics method called Multiple Regression Analysis and the second one consisted in the Multi Criteria Analysis model to calculate the risk, developed with the IDRISI KILIMANJARO software. Besides the results some limitations are named in the application of both methods and which zones may present more reliable results or more proximate to reality with the application of both methods, specially the developed with the IDRISI KILIMANJARO software. [ABSTRACT FROM AUTHOR]
- Published
- 2006
19. Climatic and socio-economic factors supporting the co-circulation of dengue, Zika and chikungunya in three different ecosystems in Colombia.
- Author
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Morgan, Jasmine, Strode, Clare, and Salcedo-Sora, J. Enrique
- Subjects
SOCIOECONOMIC factors ,CHIKUNGUNYA ,DENGUE ,DENGUE hemorrhagic fever ,COVID-19 pandemic ,AEDES aegypti - Abstract
Dengue, Zika and chikungunya are diseases of global health significance caused by arboviruses and transmitted by the mosquito Aedes aegypti, which is of worldwide circulation. The arrival of the Zika and chikungunya viruses to South America increased the complexity of transmission and morbidity caused by these viruses co-circulating in the same vector mosquito species. Here we present an integrated analysis of the reported arbovirus cases between 2007 and 2017 and local climate and socio-economic profiles of three distinct Colombian municipalities (Bello, Cúcuta and Moniquirá). These locations were confirmed as three different ecosystems given their contrasted geographic, climatic and socio-economic profiles. Correlational analyses were conducted with both generalised linear models and generalised additive models for the geographical data. Average temperature, minimum temperature and wind speed were strongly correlated with disease incidence. The transmission of Zika during the 2016 epidemic appeared to decrease circulation of dengue in Cúcuta, an area of sustained high incidence of dengue. Socio-economic factors such as barriers to health and childhood services, inadequate sanitation and poor water supply suggested an unfavourable impact on the transmission of dengue, Zika and chikungunya in all three ecosystems. Socio-demographic influencers were also discussed including the influx of people to Cúcuta, fleeing political and economic instability from neighbouring Venezuela. Aedes aegypti is expanding its range and increasing the global threat of these diseases. It is therefore vital that we learn from the epidemiology of these arboviruses and translate it into an actionable local knowledge base. This is even more acute given the recent historical high of dengue cases in the Americas in 2019, preceding the COVID-19 pandemic, which is itself hampering mosquito control efforts. Author summary: Viruses transmitted by Ae. aegypti mosquitoes (dengue, Zika, chikungunya) are amongst the most significant public health concerns of recent years due to the increase in global cases and the rapid spread of the vectors. The primary method of controlling the spread of these arboviruses is through mosquito control. Understanding factors associated with risk of these viruses is key for informing control programmes and predicting when outbreaks may occur. Climate is an important driver in mosquito development and virus reproduction and hence the association of climate with disease risk. Socio-economic factors contribute to perpetuate disease risk. Areas of high poverty have abundance of suitable habitat for Ae. aegypti (e.g. due to poor housing and sanitation). This study investigated the factors affecting arbovirus incidence in three distinct regions of Colombia: Bello, Cúcuta and Moniquirá. The results show significant relationships between disease incidence and temperature, precipitation and wind speed. A decline in dengue following outbreaks of Zika (2016) is also reported. Measures of poverty, including critical overcrowding and no access to improved water source were also found to be higher in areas of higher disease incidence. The results of this study highlight the importance of using a multifactorial approach when designing vector control programs in order to effectively distribute local health care resources. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
20. Equine gastric ulcerative syndrome in Antioquia (Colombia): Frequency and risk factors.
- Author
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Zuluaga, Angélica M., Ramírez, Nicolás F., and Martínez, José R.
- Subjects
HORSE diseases ,HORSE feeding & feeds ,GASTRIC mucosa ,DESCRIPTIVE statistics ,DISEASE risk factors - Abstract
Copyright of Revista Colombiana de Ciencias Pecuarias is the property of Universidad de Antioquia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
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21. Stratifying the potential local transmission of Zika in municipalities of Antioquia, Colombia.
- Author
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Ospina, Juan, Hincapie‐Palacio, Doracelly, Ochoa, Jesús, Molina, Adriana, Rúa, Guillermo, Pájaro, Dubán, Arrubla, Marcela, Almanza, Rita, Paredes, Marlio, and Mubayi, Anuj
- Subjects
ZIKA virus infections ,PUBLIC health surveillance ,ACQUISITION of data ,VIRAL transmission ,PREVENTION ,PREVENTION of epidemics ,ANIMALS ,DISEASE vectors ,CLUSTER analysis (Statistics) ,MOSQUITOES ,URBAN health - Abstract
Copyright of Tropical Medicine & International Health is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
22. Influence of attitudes and behavior of milkers on the hygienic and sanitary quality of milk.
- Author
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Múnera-Bedoya, Oscar David, Cassoli, Laerte D., Machado, Paulo F., and Cerón-Muñoz, Mario Fernando
- Subjects
MILK tanks ,MILK hygiene ,MILK quality ,COLONY-forming units assay - Abstract
Recognizing how human behaviors affect the milk process can be useful to understand variations in hygienic and sanitary parameters in bulk tank milk. Furthermore, this knowledge could be used to design management programs that guarantee milk quality, favoring the optimization of such processes. Forty-six milkers from the same number of dairy farms in Antioquia province (Colombia) were interviewed to establish the main factors associated to milk quality. Technical knowledge, motivations, and behavior of the personnel and its effect on hygienic and sanitary quality of milk were evaluated. Quality was assessed in terms of colony-forming units (CFU) and somatic cell count (SCC) in bulk tank milk. Two factors from a multivariate mixed data analysis were evaluated. One of those factors explained 9.51% of the total variability, related with in-farm availability and use of tools and the relationships between milker and manager. The other factor, associated with work environment and recognition, explained 6.97% of the total variability. The variables that best explained CFU levels were Knowledge of the udder condition at milking, and Milking type (parlor or pasture). The SCC was associated to knowledge of animal handling, schooling of milkers, milking site, and the groups derived from the cluster analysis by farm. In conclusion, milker attitudes and behaviors can affect CFU and SCC in bulk tank milk. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
23. Characterization of soils cultivated with rubber in the Colombian Bajo Cauca Antioqueño region.
- Author
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Villa Cuastumal, Martin Rodrigo, Martínez Bustamante, Enrique Guillermo, Cartagena Valenzuela, José Régulo, Rodríguez Rodríguez, Orlando Antonio, and Osorio, Nelson Walter
- Subjects
RUBBER plantations ,TILLAGE ,SOCIOECONOMICS ,PLANT species - Abstract
Copyright of Revista Facultad Nacional de Agronomía Medellín is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
24. Spatio-Temporal Distribution of Aedes aegypti (Diptera: Culicidae) Mitochondrial Lineages in Cities with Distinct Dengue Incidence Rates Suggests Complex Population Dynamics of the Dengue Vector in Colombia.
- Author
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Jaimes-Dueñez, Jeiczon, Arboleda, Sair, Triana-Chávez, Omar, and Gómez-Palacio, Andrés
- Subjects
DENGUE hemorrhagic fever ,CITIES & towns ,AEDES aegypti ,POPULATION dynamics ,CHLOROPLAST DNA ,MOSQUITO vectors ,DENGUE ,MOSQUITOES - Abstract
Background: Aedes aegypti is the primary vector of the four serotypes of dengue virus (DENV1-4), Chikungunya and yellow fever virus to humans. Previous population genetic studies have revealed a particular genetic structure among the vector populations in the Americas that suggests differences in the ability to transmit DENV. In Colombia, despite its high epidemiologic importance, the genetic population structure and the phylogeographic depiction of Ae. aegypti, as well as its relationship with the epidemiologic landscapes in cities with heterogeneous incidence levels, remains unknown. We conducted a spatiotemporal analysis with the aim of determining the genetic structure and phylogeography of Colombian populations of Ae. aegypti among cities with different eco-epidemiologic characteristics with regard to DENV. Methods/Findings: Mitochondrial cytochrome oxidase C subunit 1 (COI) - NADH dehydrogenase subunit 4 (ND4) genes were sequenced and analyzed from 341 adult mosquitoes collected during 2012 and 2013 in the Colombian cities of Bello, Riohacha and Villavicencio, which exhibit low, medium and high levels of incidence of DENV, respectively. The results demonstrated a low genetic differentiation over time and a high genetic structure between the cities due to changes in the frequency of two highly supported genetic groups. The phylogeographic analyses indicated that one group (associated with West African populations) was found in all the cities throughout the sampling while the second group (associated with East African populations) was found in all the samples from Bello and in only one sampling from Riohacha. Environmental factors such as the use of chemical insecticides showed a significant correlation with decreasing genetic diversity, indicating that environmental factors affect the population structure of Ae. aegypti across time and space in these cities. Conclusions: Our results suggest that two Ae. aegypti lineages are present in Colombia; one that is widespread and related to a West African conspecific, and a second that may have been recently introduced and is related to an East African conspecific. The first lineage can be found in cities showing a high incidence of dengue fever and the use of chemical insecticides, whereas the second is present in cities showing a low incidence of dengue fever where the use of chemical insecticides is not constant. This study helps to improve our knowledge of the population structure of Ae. aegypti involved in the diversity of dengue fever epidemiology in Colombia. Author Summary: Knowledge on the population structure of Aedes aegypti, the main vector of the dengue virus (DENV), is essential to improving dengue fever prevention strategies in endemic countries. In Colombia, despite the epidemiological relevance of dengue fever, the genetic population structure and phylogeography of the vector Ae. aegypti is little known. In this study, we evaluated the spatio-temporal structure and phylogeography of Colombian Ae. aegypti populations from cities showing different eco-epidemiologic attributes related to dengue fever. Our results indicated that Colombian Ae. aegypti populations harbor two mitochondrial lineages related to West and East African ancestors. The lineage related to West African populations is the most frequent and widely distributed in Colombia, and it was found in cities with a high incidence of the dengue fever. A second lineage related to East African populations, which may have been recently introduced in some regions, was found in cities showing a low incidence of dengue. These findings suggest complex population dynamic is involved in dengue fever epidemiology in Colombia, and indicate further studies about biological attributes of the Ae. aegypti lineages should be performed. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
25. Estudios etiológicos de la marchitez del aguacate en Antioquia-Colombia.
- Author
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Ramírez Gil, Joaquín Guillermo, Castañeda Sánchez, Darío Antonio, and Morales Osorio, Juan Gonzalo
- Subjects
AVOCADO ,PLANTING ,PLANT growth ,VEGETATION & climate ,BACTERIAL diseases of plants ,CULTIVARS ,BACTERIAL wilt diseases - Abstract
Copyright of Revista Ceres is the property of Revista Ceres and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
26. RELACIÓN ENTRE DESEMPEÑO INNOVADOR Y MADUREZ DE CAPACIDADES DE CONOCIMIENTO Y COMPETENCIA.
- Author
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Arias-Pérez, José Enrique, Schäfer-Elejalde, Germán Alfredo, and Aristizábal-Botero, Carlos Andrés
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INDUSTRIAL research ,PRODUCT launches ,TECHNOLOGICAL innovations ,KNOWLEDGE management - Abstract
Copyright of Revista Entramado is the property of Universidad Libre Seccional Cali and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
27. A comparison of age-dependent entrance skin doses in pediatric chest exams with diagnostic reference levels for the Antioquia region of Colombia.
- Author
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MORALES, J., JARAMILLO, W., PUERTA, J. A., ARRIETA, A., and MONCADA, L.
- Subjects
CHEST examination ,PEDIATRIC radiology ,RADIATION protection ,TISSUES ,MEDICAL radiography ,COMPARATIVE studies - Abstract
In pediatric radiology, radiological protection is of vital importance due to the great radio-sensitivity of body tissues in childhood, which can come to present stochastic effects as children have a longer life expectancy. The objective of this research is to establish diagnostic reference levels in chest exam pediatric patients. The study, carried out in one of the largest pediatric centers of the city of Medellin, the capital of the Department of Antioquia, consisted of the calculation of the Entrance Skin Dose (ESD) for a sample of 814 chest radiographic studies in the anteroposterior (AP) and left lateral (L LAT) projections, and it was compared with the doses obtained with the computational program PCXMC 2.0. For the estimate of the Entrance Skin Dose, data were collected from the exams, including the size of the radiation field, mAs and kVp. The ESD in chest exams for 5-year-old children was the only one that exceeded the international reference levels, giving evidence of the need to optimize the techniques used in this type of study in the institution under evaluation. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
28. ANÁLISIS DE LOS FACTORES QUE AFECTAN LA REPETICIÓN DE LA VISITA A UNA ATRACCIÓN CULTURAL: UNA APLICACIÓN AL MUSEO DE ANTIOQUIA.
- Author
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Gabriel Brida, Juan, Daniel Monterubbianesi, Pablo, and Zapata Aguirre, Sandra
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CULTURE ,INDUSTRIAL costs ,FACTOR analysis ,INDUSTRIAL management ,QUESTIONNAIRES ,MUSEUMS - Abstract
Copyright of Cuadernos de Administración (01203592) is the property of Pontificia Universidad Javeriana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
29. Patterns of treatment for childhood malaria among caregivers and health care providers in Turbo, Colombia.
- Author
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de Mesa, Ysabel Polanco Lopez
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MALARIA treatment ,PEDIATRIC therapy ,CAREGIVERS - Abstract
Copyright of Iatreia is the property of Universidad de Antioquia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
30. ANÁLISIS DE SENSIBILIDAD ESPACIAL DE UN MODELO HIDRODINÁMICO DEL EMBALSE PUNCHINÁ (ANTIOQUIA).
- Author
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ESCOBAR, CARLOS ALEJANDRO
- Subjects
SENSITIVITY analysis ,SPATIAL analysis (Statistics) ,HYDRODYNAMICS ,COST effectiveness ,NUMERICAL analysis ,VISCOSITY - Published
- 2010
31. Distribution of the Genus Passiflora L. Diversity in Colombia and Its Potential as an Indicator for Biodiversity Management in the Coffee Growing Zone.
- Author
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Ocampo, John, d'Eeckenbrugge, Geo Coppens, and Jarvis, Andy
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PLANT diversity ,PLANT species diversity ,ENDEMIC plants ,BIOGEOGRAPHY ,PHYTOGEOGRAPHY ,PLANT conservation - Abstract
Analysis was made of 3,923 records of 162 wild Passiflora specimens to assess the distribution of their diversity in Colombia, identify collection gaps, and explore their potential as indicator species. Despite variable collecting density among and within biogeographic regions, the Andean region clearly presents a higher species richness, particularly in the central coffee growing zone and the departments of Antioquia, Cundinamarca and Valle del Cauca. The elevational distribution of diversity shows a small peak below 500 m, and two higher ones between 1,000-2,000 and 2,500-3,000 m. This pattern corresponds to divergent adaptive trends among infrageneric divisions. The analysis on 19 climatic variables showed that the two principal variance components, explaining 77 percent of the total, are respectively associated with temperature and precipitation, without influence of seasonality. Distribution parameters allow recognizing more than 36 narrow endemics. Prediction of species distribution showed nine areas with very high richness (predicted sympatry of 41 to 54 species) in the Andean region, three of which correspond to collection gaps. Endemics were not particularly frequent there, so a prioritization of protected areas based on species richness would not favor their conservation. The sites with high Passiflora diversity are poorly represented in the current system of protected areas. Instead, their striking correspondence with ecotopes of the coffee growing zone imposes a conservation strategy integrating agricultural and environmental management at the landscape level. Reciprocally, several traits of Passiflora species make them particularly suited as indicators for any effort of conservation or restoration in this region of importance for the country. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
32. Therapeutic efficacy test in malaria falciparum in Antioquia, Colombia.
- Author
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Blair, Silvia, Carmona-Fonseca, Jaime, Piñeros, Juan G., Ríos, Alexandra, Álvarez, Tania, Álvarez, Gonzalo, and Tobón, Alberto
- Subjects
MALARIA treatment ,PLASMODIUM falciparum ,CHLOROQUINE ,MEFLOQUINE - Abstract
Objective: Evaluate the frequency of failure of eight treatments for non-complicated malaria caused by Plasmodium falciparum in patients from Turbo (Urabā region), El Bagre and Zaragoza (Bajo Cauca region), applying the 1998 protocol of the World Health Organization (WHO). Monotherapies using chloroquine (CQ), amodiaquine (AQ), mefloquine (MQ) and sulphadoxinepyrimethamine (SP), and combinations using chloroquine-sulphadoxine-pyrimethamine (CQ-SP), amodiaquine-sulphadoxine-pyrimethamine (AQ-SP), mefloquine-sulphadoxine-pyrimethamine (MQ-SP) and artesunate-sulphadoxine-pyrimethamine (AS-SP), were examined. Methodology: A balanced experimental design with eight groups. Samples were selected based on statistical and epidemiological criteria. Patients were followed for 21 to 28 days, including even or eight parasitological and clinical evaluations, with an active search for defaulting patients. A nonblinded evaluation of the antimalarial treatment response (early failure, late failure, adequate response) was performed. Results: Initially, the loss of patients to follow-up was higher than 40%, but the immediate active search for the cases and the monetary help for transportation expenses of patients, reduced the loss to 6%. The treatment failure was: CQ 82%, AQ 30%, MQ 4%, SP 24%, CQ-SP 17%, AQ-SP 2%, MQ-S-P 0%, AS-SP 3%. Conclusion: The characteristics of an optimal epidemiological monitoring system of antimalarial treatment response in Colombia are discussed. It is proposed to focus this on early failure detection, by applying a screening test every two to three years, based on a seven to 14-day followup. Clinical and parasitological assessment would be carried out by a general physician and a field microscopist from the local hospital, with active measures to search for defaulter patients at followup. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
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