Institution
Central University of Ecuador
Education•Quito, Ecuador•
About: Central University of Ecuador is a education organization based out in Quito, Ecuador. It is known for research contribution in the topics: Population & Medicine. The organization has 2220 authors who have published 1910 publications receiving 15052 citations.
Papers published on a yearly basis
Papers
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TL;DR: Principal Component Analysis suggested that Ni and V concentrations were strongly attributable to pet coke and heavy oil combustion and could be attributed to traffic and other industrial emissions.
Abstract: Elemental characterization of fine particulate matter was undertaken at schools and residences in three low income neighborhoods in Quito, Ecuador. The three zones were located in the northern (Cotocollao), south central (El Camal), and south east (Los Chillos) neighborhoods and were classified as zones 1–3, respectively. Forty elements were quantified via ICP-MS analysis. Amongst the geogenic elements, the concentration of Si was the most abundant followed by S, Al, and Ca. Elements with predominantly anthropogenic sources such as Zn, V, and Ni were higher in zone 3 school followed by zone 2 and zone 1 schools. Enrichment factors were calculated to study the role of crustal sources in the elemental concentrations. Geogenic elements, except K, all had values 10. Principal Component Analysis suggested that Ni and V concentrations were strongly attributable to pet coke and heavy oil combustion. Strong associations between As and Pb could be attributed to traffic and other industrial emissions. Resuspended dust, soil erosion, vehicular emissions (tailpipe, brake and tire wear, and engine abrasion), pet coke, heavy oil combustion, and heavy industrial operations were major contributors to air pollution.
20 citations
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TL;DR: A molecular tool described here allows in one step for specific discrimination among three cryptic freshwater snail species (genus Galba) involved in fasciolosis transmission, a worldwide infectious disease of humans and livestock.
20 citations
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TL;DR: Results suggested that Lu.
20 citations
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TL;DR: The prevalence of the majority of oral health problems in 12-year-old children from public schools in Quito-Ecuador was compatible with those observed in other similar cities, however, periodontal health and fluorosis seem to be highly prevalent in children from Quito.
Abstract: There is a paucity of population-based surveys on oral health conditions in Ecuador. Thus, the aim of this study was to conduct an epidemiological survey with a representative sample of children aged 12 years from public schools of Quito, Ecuador. The aim of this initial report was to describe the methodology used in the survey, as well to present results regarding calibration procedures and prevalence of oral-health related outcomes. We invited 33 public schools’ coordinators from the urban area of Quito, and 1100 children (12 years old) to take part in this study. Six trained and calibrated examiners conducted clinical examinations using oral mirrors and ball-ended probes to assess: dental caries, traumatic dental injuries, malocclusion, gingival bleeding, presence of calculus and fluorosis. Children also responded a questionnaire on Oral Health-Related Quality of Life (OHRQoL). Individual sociodemographic data was collected through a questionnaire sent to parents. Moreover, some contextual data on school environment (infrastructure conditions, promotion of health practices and negative episodes) were also evaluated. Prevalence values, crude and weighted by sampling weights, and 95% confidence intervals (95%CI) were calculated. Nine hundred and ninety-eight children from 31 schools were examined from March to May 2017. The adjusted prevalence values (95%CI) for the six outcomes evaluated were: dental caries = 60.3% (55.3 to 65.0%); traumatic dental injuries = 20.7% (17.2 to 24.8%); dental fluorosis = 63.7% (58.5 to 68.5%); gingival bleeding = 92.0% (87.1 to 95.2%); presence of calculus = 69.9 (60.5 to 77.9%); and malocclusion = 25.8% (21.8 to 30.3%). Adjusted mean of number of decayed, missed or filled permanent teeth (DMF-T) was 1.61 (1.37 to 1.84). Results on OHRQoL and other contextual variables will be reported in other articles. The prevalence of the majority of oral health problems in 12-year-old children from public schools in Quito-Ecuador was compatible with those observed in other similar cities. However, periodontal health and fluorosis seem to be highly prevalent in children from Quito.
20 citations
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TL;DR: In this paper, the authors analyzed the drivers of expenditure on chemical fertilizers and pesticides among Kichwa and mestizo colonist populations in the Northern Ecuadorian Amazon and found that most households in the research area use chemicals, which seems to be related to most households engaged in the production of naranjilla.
20 citations
Authors
Showing all 2257 results
Name | H-index | Papers | Citations |
---|---|---|---|
Hemmo A. Drexhage | 66 | 317 | 16299 |
Patricio Lopez-Jaramillo | 66 | 357 | 24077 |
David A. Neill | 44 | 108 | 12071 |
Rutgerd Boelens | 39 | 187 | 4578 |
Manuel O. Landázuri | 37 | 62 | 4615 |
Virginia Motilva | 35 | 103 | 3897 |
Vincenzo Torretta | 31 | 194 | 3379 |
Yoshihisa Hashiguchi | 31 | 156 | 3132 |
Giovanni Vidari | 29 | 248 | 3878 |
Juan Carlos Navarro | 26 | 109 | 2172 |
Isabel Hernández | 25 | 136 | 2359 |
Tatsuyuki Mimori | 24 | 67 | 1858 |
César Paz-y-Miño | 24 | 134 | 1600 |
Rodrigo X. Armijos | 23 | 42 | 1535 |
Manuel Calvopiña | 22 | 32 | 1301 |